Merge branch '7.x' of github.com:Islandora/islandora into 7.x-release

.gitignore

@@ -1 +1,3 @@
 cache.properties
+.DS_Store
+tests/test_config.ini

LICENSE.txt

@@ -0,0 +1,674 @@
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+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README

@@ -1,9 +0,0 @@
-Islandora Fedora Repository Module
-
-For installation and customization instructions please see the documentation and the DuraSpace Wiki: 
-
-https://wiki.duraspace.org/display/ISLANDORA/Islandora
-
-All bugs, feature requests and improvement suggestions are tracked at the DuraSpace JIRA: 
-
-https://jira.duraspace.org/browse/ISLANDORA

README.txt

@@ -0,0 +1,70 @@
+CONTENTS OF THIS FILE
+---------------------
+
+ * summary
+ * requirements
+ * installation
+ * configuration
+ * customization
+ * troubleshooting
+ * faq
+ * contact
+ * sponsors
+
+
+SUMMARY
+-------
+
+Islandora Fedora Repository Module
+
+For installation and customization instructions please see the documentation
+and the DuraSpace Wiki:
+
+https://wiki.duraspace.org/display/ISLANDORA/Islandora
+
+All bugs, feature requests and improvement suggestions are tracked at the
+DuraSpace JIRA:
+
+https://jira.duraspace.org/browse/ISLANDORA
+
+REQUIREMENTS
+------------
+
+
+INSTALLATION
+------------
+
+Before installing Islandora the XACML policies located in the policies folder
+should be copied into the Fedora global XACML policies folder. This will allow
+"authenticated users" in Drupal to access Fedora API-M functions.
+
+CONFIGURATION
+-------------
+
+The islandora_drupal_filter passes the username of 'anonymous' through to 
+Fedora for unauthenticated Drupal Users.  A user with the name of 'anonymous'
+may have XACML policies applied to them that are meant to be applied to Drupal
+users that are not logged in or vice-versa.  This is a potential security issue
+that can be plugged by creating a user named 'anonymous' and restricting access
+to the account.
+
+Drupal's cron will can be ran to remove expired authentication tokens.
+
+CUSTOMIZATION
+-------------
+
+
+TROUBLESHOOTING
+---------------
+
+
+F.A.Q.
+------
+
+
+CONTACT
+-------
+
+
+SPONSORS
+--------

css/islandora.admin.css

@@ -1,9 +1,17 @@
-/* 
-    Document   : islandora_basic_collection.admin.css
-    Created on : May 23, 2012, 11:23:06 AM
-    Description:
-        Purpose of the stylesheet follows.
-*/
+/**
+ * @file
+ * Css file for Islandora admin pages
+ */
 
+/* Solution pack admin page */
 
+.islandora-solution-pack-fieldset
+{
+  padding-top: 0.5em;
+}
 
+.islandora-solution-pack-fieldset table th,
+.islandora-solution-pack-fieldset table td
+{
+  width: 33%;
+}

includes/add_datastream.form.inc

@@ -0,0 +1,228 @@
+<?php
+
+/**
+ * @file
+ * Functions for generating/validating/submitting the add datastream form.
+ */
+
+/**
+ * The admin add datastream form.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param FedoraObject $object
+ *   The object to be deleted.
+ *
+ * @return array
+ *   The drupal form definition.
+ */
+function islandora_add_datastream_form(array $form, array &$form_state, FedoraObject $object) {
+  module_load_include('inc', 'islandora', 'includes/content_model');
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  form_load_include($form_state, 'inc', 'islandora', 'includes/add_datastream.form');
+  $form_state['object'] = $object;
+  $form_state['datastream_requirements'] = islandora_get_missing_datastreams_requirements($object);
+  $unused_datastreams = array_keys($form_state['datastream_requirements']);
+  $unused_datastreams = "'" . implode("', '", $unused_datastreams) . "'";
+  $upload_size = min((int) ini_get('post_max_size'), (int) ini_get('upload_max_filesize'));
+  return array(
+    '#redirect' => "islandora/object/{$object->id}",
+    '#attributes' => array(
+      'enctype' => 'multipart/form-data',
+    ),
+    'fieldset' => array(
+      '#type' => 'fieldset',
+      '#title' => 'Add a datastream',
+      '#collapsible' => FALSE,
+      '#collapsed' => FALSE,
+      'dsid' => array(
+        '#title' => 'Datastream ID',
+        '#description' => t("An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters and dashes and underscores. Datastreams that are defined by the content model don't currently exist: <b>@unused_dsids</b>.", array('@unused_dsids' => $unused_datastreams)),
+      ),
+      '#type' => 'textfield',
+      '#size' => 64,
+      '#maxlength' => 64,
+      '#required' => TRUE,
+      '#element_validate' => array(
+        'islandora_add_datastream_form_field_is_not_an_existing_datastream_id',
+        'islandora_add_datastream_form_field_starts_with_a_letter',
+        'islandora_add_datastream_form_field_is_valid_dsid',
+      ),
+      '#autocomplete_path' => "islandora/object/{$object->id}/manage/datastreams/add/autocomplete",
+    ),
+    'label' => array(
+      '#title' => 'Datastream Label',
+      '#required' => TRUE,
+      '#size' => 64,
+      '#maxlength' => 64,
+      '#description' => t('A Human readable label'),
+      '#type' => 'textfield',
+      '#element_validate' => array('islandora_add_datastream_form_field_does_not_contain_a_forward_slash'),
+    ),
+    'file' => array(
+      '#type' => 'managed_file',
+      '#required' => TRUE,
+      '#title' => t('Upload Document'),
+      '#size' => 48,
+      '#description' => t('Select a file to upload.<br/>Files must be less than <b>@size MB.</b>', array('@size' => $upload_size)),
+      '#default_value' => isset($form_state['values']['files']) ? $form_state['values']['files'] : NULL,
+      '#upload_location' => 'temporary://',
+      '#upload_validators' => array(
+        'file_validate_extensions' => array(NULL),
+        // Assume its specified in MB.
+        'file_validate_size' => array($upload_size * 1024 * 1024),
+      ),
+    ),
+    'submit' => array(
+      '#type' => 'submit',
+      '#value' => t('Add Datastream'),
+    ),
+  );
+}
+
+/**
+ * Checks if the given form field doesn't already repersent a Datastream ID.
+ *
+ * @param array $element
+ *   The form field to check.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param array $form
+ *   The Drupal form.
+ */
+function islandora_add_datastream_form_field_is_not_an_existing_datastream_id(array $element, array &$form_state, array $form) {
+  if (isset($form_state['object'][$element['#value']])) {
+    form_error($element, t("@title already exists in the object.", array('@title' => $element['#title'])));
+  }
+}
+
+/**
+ * Checks if the given form field starts with a letter.
+ *
+ * @param array $element
+ *   The form field to check.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param array $form
+ *   The Drupal form.
+ */
+function islandora_add_datastream_form_field_starts_with_a_letter(array $element, array &$form_state, array $form) {
+  if (!(preg_match("/^[a-zA-Z]/", $element['#value']))) {
+    form_error($element, t("@title has to start with a letter.", array('@title' => $element['#title'])));
+  }
+}
+
+/**
+ * Checks if the given form field contains a valid datastream ID.
+ *
+ * @param array $element
+ *   The form field to check.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param array $form
+ *   The Drupal form.
+ */
+function islandora_add_datastream_form_field_is_valid_dsid(array $element, array &$form_state, array $form) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  if (!islandora_is_valid_dsid($element['#value'])) {
+    form_error($element, t("@title contains invalid characters.", array('@title' => $element['#title'])));
+  }
+}
+
+/**
+ * Checks if the given form field contains a "/" character.
+ *
+ * @param array $element
+ *   The form field to check.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param array $form
+ *   The Drupal form.
+ */
+function islandora_add_datastream_form_field_does_not_contain_a_forward_slash(array $element, array &$form_state, array $form) {
+  if (strpos($element['#value'], '/') !== FALSE) {
+    form_error($element, t('@title cannot contain a "/" character.', array('@title' => $element['#title'])));
+  }
+}
+
+/**
+ * Checks if the given datastream requires the upload to be a certian MIME type.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_add_datastream_form_validate(array $form, array &$form_state) {
+  $file = file_load($form_state['values']['file']);
+  $dsid = $form_state['values']['dsid'];
+  if (isset($form_state['datastream_requirements'][$dsid]) && $file) {
+    $allowed_types = $form_state['datastream_requirements'][$dsid]['mime'];
+    $mime_detect = new MimeDetect();
+    $allowed_extensions = array_map(array($mime_detect, 'getExtension'), $allowed_types);
+    $errors = file_validate_extensions($file, implode(' ', $allowed_extensions));
+    if (count($errors) > 0) {
+      form_set_error('file', $errors[0]);
+    }
+  }
+}
+
+/**
+ * Adds the new datastream based on the submitted values.
+ *
+ * Only creates managed datastreams at the moment.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_add_datastream_form_submit(array $form, array &$form_state) {
+  $object = $form_state['object'];
+  $form_state['redirect'] = "islandora/object/{$object->id}";
+  $file = file_load($form_state['values']['file']);
+  try {
+    $ds = $object->constructDatastream($form_state['values']['dsid'], 'M');
+    $ds->label = $form_state['values']['label'];
+    $ds->mimetype = $file->filemime;
+    $path = drupal_realpath($file->uri);
+    $ds->setContentFromFile($path);
+    $object->ingestDatastream($ds);
+    file_delete($file);
+  }
+  catch (exception $e) {
+    drupal_set_message(t('@message', array('@message' => check_plain($e->getMessage()))), 'error');
+    // Make sure to delete anyways.
+    file_delete($file);
+    return;
+  }
+  drupal_set_message(t("Successfully Added Datastream!"));
+}
+
+/**
+ * Callback for an autocomplete field in the admin add datastream form.
+ *
+ * It lists the missing required (may be optional) datastreams.
+ *
+ * @param FedoraObject $object
+ *   The object used to check for missing required datastreams used to populate
+ *    the options in this callback.
+ * @param string $query
+ *   vThe user query to match against the missing required datastreams.
+ */
+function islandora_add_datastream_form_autocomplete_callback(FedoraObject $object, $query = '') {
+  module_load_include('inc', 'islandora', 'includes/content_model');
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $dsids = array_keys(islandora_get_missing_datastreams_requirements($object));
+  $dsids = array_combine($dsids, $dsids);
+  $query = trim($query);
+  if (!empty($query)) {
+    $filter = function($id) use($query) {
+      return stripos($id, $query) !== FALSE;
+    };
+    $dsids = array_filter($dsids, $filter);
+  }
+  drupal_json_output($dsids);
+}

includes/admin.form.inc

@@ -1,31 +1,38 @@
 <?php
 
 /**
- * @file islandora.admin.inc
- * Create admin form
- * @return array 
+ * @file
+ * This administration form for this module.
  */
 
-function islandora_repository_admin($form, &$form_state) {
-  module_load_include('inc', 'islandora', 'includes/tuque');
+/**
+ * The administration form for the fedora repository connection.
+ *
+ * @param array $form
+ *   The Drupal form definition.
+ * @param array $form_state
+ *   The Drupal form state.
+ *
+ * @return array
+ *   The Drupal form definition.
+ */
+function islandora_repository_admin(array $form, array &$form_state) {
   module_load_include('inc', 'islandora', 'includes/utilities');
-
-  if (!IslandoraTuque::exists()) {
-    IslandoraTuque::getError();
-    return;
-  }
+  drupal_add_css(drupal_get_path('module', 'islandora') . '/css/islandora.admin.css');
 
   $form = array();
-
-  if(isset($form_state['values']['islandora_base_url'])) {
+  if (isset($form_state['values']['islandora_base_url'])) {
     $url = $form_state['values']['islandora_base_url'];
   }
   else {
     $url = variable_get('islandora_base_url', 'http://localhost:8080/fedora');
   }
 
-  module_load_include('inc', 'islandora', 'includes/tuque');
-  $connection = new IslandoraTuque(NULL, $url);
+  $connection = islandora_get_tuque_connection(NULL, $url);
+  if (!$connection) {
+    return;
+  }
+
   try {
     $info = $connection->api->a->describeRepository();
   }
@@ -33,7 +40,7 @@ function islandora_repository_admin($form, &$form_state) {
     $info = FALSE;
   }
 
-  if($info) {
+  if ($info) {
     try {
       $dc = $connection->api->m->getDatastream('fedora-system:ContentModel-3.0', 'DC');
     }
@@ -42,19 +49,22 @@ function islandora_repository_admin($form, &$form_state) {
     }
   }
 
-  if($info) {
-    if($dc) {
-      $confirmation_message = '<img src="' . url('misc/watchdog-ok.png') . '"/>'
-        . t('Successfully connected to Fedora Server (Version !version).', array('!version' => $info['repositoryVersion']));
+  if ($info) {
+    if ($dc) {
+      $confirmation_message = theme_image(array('path' => 'misc/watchdog-ok.png', 'attributes' => array()));
+      $confirmation_message .= t('Successfully connected to Fedora Server (Version !version).', array(
+                                 '!version' => $info['repositoryVersion']));
     }
     else {
-      $confirmation_message = '<img src="' . url('misc/watchdog-warning.png') . '"/>'
-        . t('Unable to authenticate when connecting to to Fedora Server (Version !version). Please configure the !filter.', array('!version' => $info['repositoryVersion'], '!filter' => 'Drupal Filter'));
+      $confirmation_message = theme_image(array('path' => 'misc/watchdog-warning.png', 'attributes' => array()));
+      $confirmation_message .= t('Unable to authenticate when connecting to to Fedora Server (Version !version). Please configure the !filter.',
+                               array('!version' => $info['repositoryVersion'], '!filter' => 'Drupal Filter'));
     }
   }
   else {
-    $confirmation_message = '<img src="' . url('misc/watchdog-error.png') . '"/> '
-      . t('Unable to connect to Fedora server at !islandora_url', array('!islandora_url' => $url));
+    $confirmation_message = theme_image(array('path' => 'misc/watchdog-error.png', 'attributes' => array()));
+    $confirmation_message .= t('Unable to connect to Fedora server at !islandora_url', array(
+                               '!islandora_url' => $url));
   }
 
   $form['islandora_tabs'] = array(
@@ -66,7 +76,7 @@ function islandora_repository_admin($form, &$form_state) {
     '#title' => t('General Configuarion'),
   );
 
-  // ajax wrapper for url checking
+  // Ajax wrapper for url checking.
   $form['islandora_tabs']['islandora_general']['wrapper'] = array(
     '#prefix' => '<div id="islandora-url">',
     '#suffix' => '</div>',
@@ -77,7 +87,9 @@ function islandora_repository_admin($form, &$form_state) {
     '#type' => 'textfield',
     '#title' => t('Fedora base URL'),
     '#default_value' => variable_get('islandora_base_url', 'http://localhost:8080/fedora'),
-    '#description' => t('The URL to use for REST connections <br>' . $confirmation_message),
+    '#description' => t('The URL to use for REST connections <br /> !confirmation_message', array(
+      '!confirmation_message' => $confirmation_message,
+    )),
     '#required' => TRUE,
     '#ajax' => array(
       'callback' => 'islandora_update_url_div',
@@ -111,7 +123,7 @@ function islandora_repository_admin($form, &$form_state) {
     '#weight' => -1,
     '#type' => 'checkbox',
     '#title' => t('Enforce namespace restrictions'),
-    '#description' => t('Allow administrator to restrict user\'s access to the PID namepaces listed below'),
+    '#description' => t("Allow administrator to restrict user's access to the PID namepaces listed below"),
     '#default_value' => variable_get('islandora_namespace_restriction_enforced', FALSE),
     '#ajax' => array(
       'callback' => 'islandora_update_namespace_div',
@@ -122,19 +134,19 @@ function islandora_repository_admin($form, &$form_state) {
     ),
   );
 
-  if(isset($form_state['values']['islandora_namespace_restriction_enforced'])) {
+  if (isset($form_state['values']['islandora_namespace_restriction_enforced'])) {
     $namespaces = $form_state['values']['islandora_namespace_restriction_enforced'];
   }
   else {
     $namespaces = variable_get('islandora_namespace_restriction_enforced', FALSE);
   }
 
-  if($namespaces) {
+  if ($namespaces) {
     $form['islandora_tabs']['islandora_namespace']['wrapper']['islandora_pids_allowed'] = array(
       '#type' => 'textfield',
       '#title' => t('PID namespaces allowed in this Drupal install'),
       '#default_value' => variable_get('islandora_pids_allowed', 'default: demo: changeme: ilives: islandora-book: books: newspapers: '),
-      '#description' => t('A space separated list of PID namespaces that users are permitted to access from this Drupal installation. <br /> This could be more than a simple namespace ie demo:mydemos. <br> islandora: is reserved and is always allowed.'),
+      '#description' => t('A space separated list of PID namespaces that users are permitted to access from this Drupal installation. <br /> This could be more than a simple namespace ie demo:mydemos. <br /> islandora: is reserved and is always allowed.'),
       '#weight' => 0,
     );
   }
@@ -143,21 +155,31 @@ function islandora_repository_admin($form, &$form_state) {
 }
 
 /**
- * Checks url validity and refreshes requestHandler dropdown list
+ * Get the element to render for the AJAX event that triggered this callback.
+ *
+ * @param array $form
+ *   The Drupal form definition.
+ * @param array $form_state
+ *   The Drupal form state.
+ *
+ * @return array
+ *   The form element to render.
  */
-function islandora_update_url_div($form, $form_state) {
-  unset($form_state['submit_handlers']);
-  $form_state['rebuild'] = TRUE;
-
+function islandora_update_url_div(array $form, array $form_state) {
   return $form['islandora_tabs']['islandora_general']['wrapper'];
 }
 
 /**
- * Checks url validity and refreshes requestHandler dropdown list
+ * Get the element to render for the AJAX event that triggered this callback.
+ *
+ * @param array $form
+ *   The Drupal form definition.
+ * @param array $form_state
+ *   The Drupal form state.
+ *
+ * @return array
+ *   The form element to render.
  */
-function islandora_update_namespace_div($form, $form_state) {
-  unset($form_state['submit_handlers']);
-  $form_state['rebuild'] = TRUE;
-  
+function islandora_update_namespace_div(array $form, array $form_state) {
   return $form['islandora_tabs']['islandora_namespace']['wrapper'];
 }

includes/authtokens.inc

@@ -0,0 +1,136 @@
+<?php
+
+/**
+ * @file
+ * Handles the generation and validation of authentication tokens.
+ *
+ * These are to be used when dealing with applications such as Djatoka that do
+ *  not pass through credentials.
+ */
+
+// Token lifespan(seconds): after this duration the token expires.
+// 5 minutes.
+define('TOKEN_TIMEOUT', 300);
+
+/**
+ * Request Islandora to construct an object/datastream authentication token.
+ *
+ * This token can later be turned in for access to the requested object or
+ * datastream.
+ *
+ * @param string $pid
+ *   The Fedora PID to generate the token for.
+ * @param string $dsid
+ *   The Fedora datastream ID to generate the token for.
+ * @param int $uses
+ *   Defaults to 1.
+ *   The number of uses the token should be used for.  There are
+ *   times when this should be greater than 1: ie. Djatoka needs
+ *   to make two calls. This is the number of times it can be called
+ *   from different php sessions, not in the run of a program. (it is
+ *   statically cached).
+ *
+ * @return string
+ *   The generated authentication token.
+ */
+function islandora_get_object_token($pid, $dsid, $uses = 1) {
+  global $user;
+  $time = time();
+  // The function mt_rand is not considered cryptographically secure
+  // and openssl_rando_pseudo_bytes() is only available in PHP > 5.3.
+  // We might be safe in this case because mt_rand should never be using
+  // the same seed, but this is still more secure.
+  $token = hash("sha256", mt_rand() . $time);
+
+  $id = db_insert("islandora_authtokens")->fields(
+    array(
+      'token' => $token,
+      'uid' => $user->uid,
+      'pid' => $pid,
+      'dsid' => $dsid,
+      'time' => $time,
+      'remaining_uses' => $uses,
+    ))->execute();
+
+  return $token;
+}
+
+/**
+ * Submit a token to islandora for authentication.
+ *
+ * Supply islandora with the token and the object/datastream it is for and you
+ * will receive access if authentication passes. Tokens can only be redeemed
+ * in a short window after their creation.
+ *
+ * @param string $pid
+ *   The PID of the object to retrieve.
+ * @param string $dsid
+ *   The datastream id to retrieve.
+ * @param string $token
+ *   The registered token that allows access to this object.
+ *
+ * @return mixed
+ *   The user credentials for access if the token validation passes,
+ *   FALSE otherwise
+ */
+function islandora_validate_object_token($pid, $dsid, $token) {
+  static $accounts = array();
+
+  if (!empty($accounts[$pid][$dsid][$token])) {
+    return $accounts[$pid][$dsid][$token];
+  }
+
+  // Check for database token.
+  $time = time();
+  $query = db_select('islandora_authtokens', 'tokens');
+  $query->join('users', 'u', 'tokens.uid = u.uid');
+  // The results will look like user objects.
+  $result = $query
+    ->fields('u', array('uid', 'name', 'pass'))
+    ->fields('tokens', array('remaining_uses'))
+    ->condition('token', $token, '=')
+    ->condition('pid', $pid, '=')
+    ->condition('dsid', $dsid, '=')
+    ->condition('time', $time, '<=')
+    ->condition('time', $time - TOKEN_TIMEOUT, '>')
+    ->execute()
+    ->fetchAll();
+  if ($result) {
+    $remaining_uses = $result[0]->remaining_uses;
+    $remaining_uses--;
+    // Remove the authentication token so it can't be used again.
+    if ($remaining_uses == 0) {
+      db_delete("islandora_authtokens")
+        ->condition('token', $token, '=')
+        ->condition('pid', $pid, '=')
+        ->condition('dsid', $dsid, '=')
+        ->execute();
+    }
+    // Decrement authentication token uses.
+    else {
+      db_update("islandora_authtokens")
+      ->fields(array('remaining_uses' => $remaining_uses))
+      ->condition('token', $token, '=')
+      ->condition('pid', $pid, '=')
+      ->condition('dsid', $dsid, '=')
+      ->execute();
+    }
+    unset($result[0]->remaining_uses);
+    $accounts[$pid][$dsid][$token] = $result[0];
+  }
+  else {
+    $accounts[$pid][$dsid][$token] = FALSE;
+  }
+
+  return $accounts[$pid][$dsid][$token];
+}
+
+/**
+ * Will remove any expired authentication tokens.
+ */
+function islandora_remove_expired_tokens() {
+  $time = time();
+  db_delete("islandora_authtokens")
+    ->condition('time', $time - TOKEN_TIMEOUT, '<')
+    ->execute();
+}

includes/breadcrumb.inc

@@ -1,16 +1,37 @@
 <?php
 
+/**
+ * @file
+ * This file contains functions to create breadcrumbs on Islandora object pages.
+ */
+
+/**
+ * Get an array of links to be passed to drupal_set_breadcrumb().
+ *
+ * This is used for generating the bread-crumbs for the view object page.
+ *
+ * Each link in the bread-crumbs represents a member of the given objects
+ * ancestry which is identified by any of the following RELS-EXT terms
+ * (isMemberOf,isMemberOfCollection,isPartOf).
+ *
+ * @param FedoraObject $object
+ *   An object whose ancestry will be mapped to bread-crumbs.
+ *
+ * @see drupal_set_breadcrumb()
+ *
+ * @return array
+ *   Array of links, starting with most distant ancestor proceeding up to but
+ *   not including the given object. For use in the function
+ *   drupal_set_breadcrumb().
+ */
 function islandora_get_breadcrumbs($object) {
   $breadcrumbs = array();
-
   islandora_get_breadcrumbs_recursive($object->id, $breadcrumbs, $object->repository);
-  
-  if(isset($breadcrumbs[0])) {
+  if (isset($breadcrumbs[0])) {
+    // Remove the actual object.
     unset($breadcrumbs[0]);
   }
-
   $breadcrumbs = array_reverse($breadcrumbs);
-
   return $breadcrumbs;
 }
 
@@ -19,14 +40,19 @@ function islandora_get_breadcrumbs($object) {
  *
  * @todo Make fully recursive...
  *
- * @global type $base_url
- * @param type $pid
- * @param type $breadcrumbs
- * @param type $level
+ * @todo Could use some clean up, can't be called multiple times safely due to
+ *   the use of static variables.
+ *
+ * @param string $pid
+ *   THe object id whose parent will be fetched for the next link.
+ * @param array $breadcrumbs
+ *   The list of existing bread-crumb links in reverse order.
+ * @param FedoraRepository $repository
+ *   The fedora repository.
  */
-function islandora_get_breadcrumbs_recursive($pid, &$breadcrumbs, $repository) {
-  // Before executing the query, we hve a base case of accessing the top-level collection
-  global $base_url;
+function islandora_get_breadcrumbs_recursive($pid, array &$breadcrumbs, FedoraRepository $repository) {
+  // Before executing the query, we have a base case of accessing the top-level
+  // collection.
   static $max_level = 10;
   static $level = -1;
 
@@ -69,8 +95,10 @@ function islandora_get_breadcrumbs_recursive($pid, &$breadcrumbs, $repository) {
       islandora_get_breadcrumbs_recursive($parent, $breadcrumbs, $repository);
     }
     else {
-      $breadcrumbs[] = '...'; //Add an non-link, as we don't know how to get back to the root.
-      islandora_get_breadcrumbs_recursive($root, $breadcrumbs, $repository); //And render the last two links and break (on the next pass).
+      // Add an non-link, as we don't know how to get back to the root.
+      $breadcrumbs[] = '...';
+      // And render the last two links and break (on the next pass).
+      islandora_get_breadcrumbs_recursive($root, $breadcrumbs, $repository);
     }
   }
 }

includes/datastream.inc

@@ -1,471 +1,145 @@
 <?php
 
 /**
- * @file datastream.inc 
+ * @file
+ * Contains the admin form and callback functions for datastream manipulations.
  */
 
-define('DS_COMP_STREAM', 'DS-COMPOSITE-MODEL');
 /**
+ * Callback to download the given datastream to the users computer.
  *
- * @global object $user
- * @param string $object_id
- * @param string $dsid
- * @return stream 
- *  prints datastream to browser
+ * @param FedoraDatastream $datastream
+ *   The datastream to download.
  */
-function islandora_view_datastream($object, $dsid, $method = 'view') {
-  // if the object exists but the datastream doesn't
-  if(!isset($object[$dsid])) {
-    return drupal_not_found();
-  }
-
-  header('Content-type: ' . $object[$dsid]->mimetype);
-  if($object[$dsid]->controlGroup == 'M' || $object[$dsid]->controlGroup == 'X') {
-    header('Content-length: ' . $object[$dsid]->size);
-  }
-
-  if ($method == 'download') {
-    header("Content-Disposition: attachment; filename=\"" . $object[$dsid]->label);
-  }
-  print($object[$dsid]->content);
-  exit();
-}
-
-function islandora_datastream_get_parents($islandora_object) {
-  $parent_collections = array();
-
-  try {
-    $repository = $islandora_object->repository;
-    $collections1 = $islandora_object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOfCollection');
-    $collections2 = $islandora_object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOf');
-  }
-  catch (RepositoryException $e) {
-    $collections1 = array();
-    $collections2 = array();
-  }
-  $collections = array_merge($collections1, $collections2);
-
-  foreach($collections as $collection) {
-    try {
-      $pid = $collection['object']['value'];
-      $object = $repository->getObject($collection['object']['value']);
-      $parent_collections[$pid] = array();
-      $parent_collections[$pid]['object'] = $object;
-      $parent_collections[$pid]['url'] = 'islandora/object/' . $object->id;
-      $parent_collections[$pid]['label'] = $object->label;
-      $parent_collections[$pid]['label_link'] = l($parent_collections[$pid]['label'], $parent_collections[$pid]['url']);
-    }
-    catch (RepositoryException $e) {}
-  }
-
-  return $parent_collections;
+function islandora_download_datastream(FedoraDatastream $datastream) {
+  islandora_view_datastream($datastream, TRUE);
 }
 
 /**
+ * Callback function to view or download a datastream.
+ *
+ * @note
+ *  This function calls exit().
  *
- * @param array $arr
- *   an array of dsids that are defined by this objects cmodels
- * @param string $ds_comp_stream 
- *   the dscomposite stream as xml
+ * @param FedoraDatastream $datastream
+ *   The datastream to view/download.
+ * @param bool $download
+ *   If TRUE the file is download to the user computer for viewing otherwise it
+ *   will attempt to display in the browser natively.
  */
-function islandora_get_defined_dsids_array(&$arr, $ds_comp_stream) {
-  $sxml = new SimpleXMLElement($ds_comp_stream);
-  foreach ($sxml->dsTypeModel as $ds) {
-    //$arr[$ds['ID']] 
-    $mimes = array();
-    foreach ($ds->form as $form) {
-      $mimetype = (string) $form['MIME'];
-      $mimes[] = $mimetype;
-    }
-    $dsid = (string) $ds['ID'];
-    if ($dsid != 'AUDIT') {
-      $arr[(string) $ds['ID']] = $mimes;
-    }
-  }
+function islandora_view_datastream(FedoraDatastream $datastream, $download = FALSE) {
+  header_remove('Cache-Control');
+  header_remove('Expires');
+  header('Content-type: ' . $datastream->mimetype);
+  if ($datastream->controlGroup == 'M' || $datastream->controlGroup == 'X') {
+    header('Content-length: ' . $datastream->size);
+  }
+  if ($download) {
+    // Browsers will not append all extensions.
+    $mime_detect = new MimeDetect();
+    $extension = $mime_detect->getExtension($datastream->mimetype);
+    $filename = $datastream->label . '.' . $extension;
+    header("Content-Disposition: attachment; filename=\"$filename\"");
+  }
+  drupal_page_is_cacheable(FALSE);
+  // Try not to load the file into PHP memory!
+  $datastream->getContent('php://output');
+  exit();
 }
 
 /**
+ * Get the human readable size of the given datastream.
  *
- * @global type $user
- * @param string $object_id
- * @return string|array 
+ * @param FedoraDatastream $datastream
+ *   The datastream to check.
+ *
+ * @return string
+ *   A human readable size of the given datastream, or '-' if the size could not
+ *   be determined.
  */
-function islandora_get_unused_dsids($object) {
-
-  $defined_dsids = array();
-
-  if(!$object) {
-    return $defined_dsids;
-  }
-
-  $models = $object->models;
-  if (isset($models)) {
-    foreach ($models as $model) {
-      try {
-        $model_object = $object->repository->getObject($model);
-        if (isset($model_object[DS_COMP_STREAM])) {
-          $dscomposite_stream = $model_object[DS_COMP_STREAM]->content;
-          islandora_get_defined_dsids_array($defined_dsids, $dscomposite_stream);
-        }
-      } catch (Exception $e) {
-        //do nothing as other objects may have a dscompsite stream
-      }
-    }
-  }
-  foreach ($defined_dsids as $key => $value) {
-    if (isset($fedora_object[$key])) {
-      unset($defined_dsids[$key]); //ds exists in the object so don't show in the dropdown
-    }
-  }
-  return $defined_dsids;
+function islandora_datastream_get_human_readable_size(FedoraDatastream $datastream) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $size_is_calculatable = $datastream->controlGroup == 'M' || $datastream->controlGroup == 'X';
+  return $size_is_calculatable ? islandora_convert_bytes_to_human_readable($datastream->size) : '-';
 }
 
 /**
- * buids the default add datastream form
- * @param string $object_id
- * @param array $form_state
- * @return array 
- *  a form ready to be rendered with a call to Drupal render
+ * Get either the 'view' or 'download' url for the given datastream if possible.
+ *
+ * @param FedoraDatastream $datastream
+ *   The datastream to generated the url to.
+ *
+ * @return string
+ *   either the 'view' or 'download' url for the given datastream.
  */
-function islandora_get_add_datastream_form($object, &$form_state) {
-  $unused_dsids = islandora_get_unused_dsids($object); 
-  $form = array();
-  $form['add_fieldset'] = array(
-    '#type' => 'fieldset',
-    '#title' => 'Add a datastream',
-    '#collapsible' => TRUE,
-    '#collapsed' => TRUE,
-  );
-  $form['add_fieldset']['add_datastream_label'] = array(
-    '#value' => t('<br /><h3>Add Datastream:</h3>'),
-    '#weight' => -10,
-  );
-
-  $form['pid'] = array(
-    '#type' => 'hidden',
-    '#value' => "$object->id"
-  );
-
-  $form['add_fieldset']['stream_label'] = array(
-    '#title' => 'Datastream Label',
-    '#required' => 'TRUE',
-    '#description' => t('A Human readable label'),
-    '#type' => 'textfield'
-  );
-
-  $form['#attributes']['enctype'] = 'multipart/form-data';
-  $form['add_fieldset']['add-stream-file-location'] = array(
-    '#type' => 'file',
-    '#title' => t('Upload Document'),
-    '#size' => 48,
-    // '#required'=>'TRUE',
-    '#description' => t('The file to upload.')
-  );
-  $form['#redirect'] = "islandora/object/$object->id/";
-  $form['add_fieldset']['submit'] = array(
-    '#type' => 'submit',
-    '#value' => t('Add Datastream')
-  );
-
-  if (!empty($unused_dsids)) {
-    $dsidsForForm = array();
-    foreach ($unused_dsids as $key => $value) {
-      $dsidsForForm[$key] = $key;
-    }
-    $form['add_fieldset']['stream_id'] = array(
-      '#type' => 'select',
-      '#title' => t('Datastream ID'),
-      '#default_value' => variable_get('feed_item_length', 'teaser'),
-      '#weight' => '-1',
-      '#description' => t('Datastream IDs defined by the content model.'),
-    );
-    $form['add_fieldset']['stream_id']['#options'] = $dsidsForForm;
-  }
-  else {
-    $form['add_fieldset']['stream_id'] = array(
-      '#title' => 'Datastream ID',
-      '#required' => 'TRUE',
-      '#description' => t('An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters and dashes and underscores.'),
-      '#type' => 'textfield',
-      '#weight' => -1,
-    );
-  }
-  return $form;
+function islandora_datastream_get_url(FedoraDatastream $datastream, $type = 'download') {
+  return $datastream->controlGroup == 'R' ? $datastream->url : "islandora/object/{$datastream->parent->id}/datastream/{$datastream->id}/$type";
 }
 
 /**
- * Default implmentation currently only does M (managed datastreams)
- * other modules can hook form alter to add other functionality
- * @global string $base_url
- * @global object $user
- *   Drupal user
- * @param array $form
- * @param array $form_state
- * @return type 
+ * Gets the delete link.
+ *
+ * @param FedoraDatastream $datastream
+ *   The datastream to generated the url to.
  */
-function islandora_add_datastream_form_submit($form, &$form_state) {
-  global $base_url;
-  if (!empty($form_state['submit']) && $form_state['submit'] == 'OK') {
-    $form_state['rebuild'] = TRUE;
-    return;
-  }
-
-  module_load_include('inc', 'islandora', 'includes/mime.detect');
-  $mimetype = new MimeDetect();
-  
-  $file = $form_state['values']['add-stream-file-location'];
-  $file = drupal_realpath($file);
-
-  $object_id = $form_state['values']['pid'];
-  $dsid = $form_state['values']['stream_id'];
-  $ds_label = $form_state['values']['stream_label'];
-  $dformat = $mimetype->getMimeType($file);
-  $controlGroup = "M";
-
-  try {
-    $fedora_object = islandora_object_load($object_id);
-    $ds = $fedora_object->constructDatastream($dsid, $controlGroup);
-    $ds->label = $ds_label;
-    $ds->mimetype = $dformat;
-    $ds->setContentFromFile($file);
-    $fedora_object->ingestDatastream($ds);
-    $d_file = file_load($form_state['values']['fid']);
-    file_delete($d_file);
-  } catch (exception $e) {
-    drupal_set_message(t('@message', array('@message' => check_plain($e->getMessage()))), 'error');
-    return;
-  }
-  drupal_set_message("Successfully Added Datastream!");
-  drupal_goto("islandora/object/$object_id");
+function islandora_datastream_get_delete_link(FedoraDatastream $datastream) {
+  $datastreams = module_invoke_all('islandora_undeletable_datastreams', $datastream->parent->models);
+  $can_delete = !in_array($datastream->id, $datastreams);
+  return $can_delete ? l(t('delete'), "islandora/object/{$datastream->parent->id}/datastream/{$datastream->id}/delete") : '';
 }
 
 /**
- * validates this datastream id against its allowed mimetypes in the dscomposite 
- * of its content models.
- * @param array $form
- * @param array $form_state
- * @return boolean 
+ * Gets the edit link.
+ *
+ * @param FedoraDatastream $datastream
+ *   The datastream to generated the url to.
  */
-function islandora_add_datastream_form_validate($form, &$form_state) {
-  module_load_include('inc', 'islandora', 'includes/mime.detect');
-  $mimetype = new MimeDetect();
-  if ($form_state['clicked_button']['#value'] == 'OK') {
-    $form_state['rebuild'] = TRUE;
-    return;
-  }
-  $dsid = $form_state['values']['stream_id'];
-  $dsLabel = $form_state['values']['stream_label'];
-  if (strlen($dsid) > 64) {
-    form_set_error('', t('Data stream ID cannot be more than 64 characters.'));
-    return FALSE;
-  }
-  if (!(preg_match("/^[a-zA-Z]/", $dsid))) {
-    form_set_error('', t("Data stream ID (@dsid) has to start with a letter.", array('@dsid' => check_plain($dsid))));
-    return FALSE;
-  }
-  if (strlen($dsLabel) > 64) {
-    form_set_error('', t('Data stream Label cannot be more than 64 characters.'));
-    return FALSE;
-  }
-  if (strpos($dsLabel, '/')) {
-    form_set_error('', t('Data stream Label cannot contain a "/".'));
-    return FALSE;
-  }
-
-  $object_id = $form_state['values']['pid'];
-  $fedora_object = islandora_object_load($object_id);
-
-  if(isset($fedora_object[$dsid])) {
-    form_set_error('', t('Data stream ID already exists in object.'));
-    return FALSE;
-  }
-
-  $mimetype = new MimeDetect();
-  $object = islandora_object_load($form_state['values']['pid']);
-  $unused_dsids = islandora_get_unused_dsids($object);
-  if(isset($unused_dsids[$dsid])) {
-    $types_allowed = $unused_dsids[$dsid];
-    $arr = array();
-    foreach ($types_allowed as $type) {
-      $arr[] = $mimetype->getExtension($type);
-    }
-  }
-  else {
-    // todo: this is unsafe, should probably be fixed see:
-    // http://api.drupal.org/api/drupal/includes!file.inc/function/file_save_upload/7
-    $arr = array();
-  }
-  
-
-  $file = file_save_upload('add-stream-file-location', array('file_validate_extensions' => $arr));
-  if ($file) {
-    $form_state['values']['add-stream-file-location'] = $file->uri;
-    $form_state['values']['fid'] = $file->fid; //so we can load it to delete later
-  }
-  else {
-    form_set_error('add-stream-file-location', t('There was no file uploaded'));
-  }
+function islandora_datastream_edit_get_link(FedoraDatastream $datastream) {
+  $edit_registry = module_invoke_all('islandora_edit_datastream_registry', $datastream->parent, $datastream);
+  $can_edit = count($edit_registry) > 0 && user_access(FEDORA_METADATA_EDIT);
+  return $can_edit ? l(t('edit'), "islandora/object/{$datastream->parent->id}/datastream/{$datastream->id}/edit") : '';
 }
 
-
 /**
- * buids the default add datastream form
- * @param string $object_id
- * @param array $form_state
- * @return array 
- *  a form ready to be rendered with a call to Drupal render
+ * Display the edit datastream page.
+ *
+ * @param FedoraDatastream $datastream
+ *   The datastream to edit.
  */
-function islandora_add_datastream_form($form, &$form_state, $object) {
-  $unused_dsids = islandora_get_unused_dsids($object); //$defined_dsids;
-  $form = array();
-  $form['add_fieldset'] = array(
-    '#type' => 'fieldset',
-    '#title' => 'Add a datastream',
-    '#collapsible' => FALSE,
-    '#collapsed' => FALSE,
-  );
-  $form['add_fieldset']['add_datastream_label'] = array(
-    '#value' => t('<br /><h3>Add Datastream:</h3>'),
-    '#weight' => -10,
-  );
-
-  $form['pid'] = array(
-    '#type' => 'hidden',
-    '#value' => "$object->id"
-  );
-
-  $form['add_fieldset']['stream_label'] = array(
-    '#title' => 'Datastream Label',
-    '#required' => 'TRUE',
-    '#description' => t('A Human readable label'),
-    '#type' => 'textfield'
-  );
-
-  $form['#attributes']['enctype'] = 'multipart/form-data';
-  $form['add_fieldset']['add-stream-file-location'] = array(
-    '#type' => 'file',
-    '#title' => t('Upload Document'),
-    '#size' => 48,
-    // '#required'=>'TRUE',
-    '#description' => t('The file to upload.')
-  );
-  $form['#redirect'] = "islandora/object/$object->id/";
-  $form['add_fieldset']['submit'] = array(
-    '#type' => 'submit',
-    '#value' => t('Add Datastream')
-  );
-
-  $unused_dsids = islandora_get_unused_dsids($object);
-  $dsidsForForm = '';
-  $i = 0;
-  foreach ($unused_dsids as $key => $value) {
-    if($i++) {
-      $dsidsForForm .= ", ";
-    }
-    $dsidsForForm .= "'$key'";
-  }
-
-  $form['add_fieldset']['stream_id'] = array(
-    '#title' => 'Datastream ID',
-    '#required' => 'TRUE',
-    '#description' => t('An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters and dashes and underscores. Datastreams that are defined by the content model dont currently exist: <b>' . $dsidsForForm . '</b>.'),
-    '#type' => 'textfield',
-    '#weight' => -1,
-    '#autocomplete_path' => "islandora/object/$object->id/manage/datastreams/add/autocomplete",
-  );
-  return $form;
-}
-
-function islandora_datastream_autocomplete_callback($object, $string = '') {
-  $dsids = islandora_get_unused_dsids($object);
-  $output = array();
-  foreach($dsids as $id => $ds) {
-    if(trim($string) == '') {
-      $output[$id] = $id;
-    }
-    else {
-      $ret = stripos($id, $string);
-      if($ret !== FALSE) {
-        $output[$id] = $id;
-      }
-    }
-  }
-  drupal_json_output($output);
-}
-
-function islandora_datastream_get_human_readable_size($ds) {
-  module_load_include('inc', 'islandora', 'includes/utilities');
-
-  // we return - if we don't have a size
-  if($ds->controlGroup == 'M' || $ds->controlGroup == 'X') {
-    return islandora_convert_bytes_to_human_readable($ds->size);
-  }
-  else {
-    return '-';
-  }
-}
-
-function islandora_datastream_get_url($ds, $type = 'download') {
-  if($ds->controlGroup == 'R') {
-    return $ds->url;
-  }
-  else {
-    return "islandora/object/{$ds->parent->id}/datastream/{$ds->id}/$type";
-  }
-}
-
-function islandora_datastream_get_delete_link($ds) {
-  $datastreams = module_invoke_all('islandora_undeletable_datastreams', $ds->parent->models);
-
-  if(in_array($ds->id, $datastreams)) {
-    return '';
-  }
-  else {
-    return l(t('delete'), 'islandora/object/' . $ds->parent->id . '/datastream/' . $ds->id . '/delete');
-  }
-}
-
-function islandora_islandora_undeletable_datastreams($models) {
-  return array('DC');
-}
-
-function islandora_datastream_edit_get_link($object, $ds_id) {
-  $edit_registry = module_invoke_all('islandora_edit_datastream_registry', $object, $ds_id);
-  if (count($edit_registry) > 0 && user_access(FEDORA_METADATA_EDIT)) {
-    return l(t('edit'), 'islandora/object/' . $object->id . '/datastream/' . $ds_id . '/edit');
-  }
-  else {
-    return '';
-  }
-}
-
-function islandora_edit_datastream($object, $ds_id) {
-  $edit_registry = module_invoke_all('islandora_edit_datastream_registry', $object, $ds_id);
+function islandora_edit_datastream(FedoraDatastream $datastream) {
+  $edit_registry = module_invoke_all('islandora_edit_datastream_registry', $datastream->parent, $datastream);
   $edit_count = count($edit_registry);
-
-  if ($edit_count == 0) {
+  switch ($edit_count) {
+    case 0:
       // No edit implementations.
       drupal_set_message(t('There are no edit methods specified for this datastream.'));
-    drupal_goto('islandora/object/' . $object->id . '/manage/datastreams');
-  }
-  elseif ($edit_count == 1) {
-    // One registry implementation, go there
+      drupal_goto("islandora/object/{$object->id}/manage/datastreams");
+      break;
+
+    case 1:
+      // One registry implementation, go there.
       drupal_goto($edit_registry[0]['url']);
-  }
-  else {
-    // Multiple edit routes registered
+      break;
+
+    default:
+      // Multiple edit routes registered.
       return islandora_edit_datastream_registry_render($edit_registry);
   }
 }
 
-//@TODO: theme / preprocess
-function islandora_edit_datastream_registry_render($edit_registry) {
-  $output = array(
+/**
+ * Displays links to all the edit datastream registry items.
+ *
+ * @param array $edit_registry
+ *   A list of 'islandora_edit_datastream_registry' values.
+ */
+function islandora_edit_datastream_registry_render(array $edit_registry) {
+  $markup = '';
+  foreach ($edit_registry as $edit_route) {
+    $markup .= l($edit_route['name'], $edit_route['url']) . '<br/>';
+  }
+  return array(
     '#type' => 'markup',
-    '#markup' => '',
+    '#markup' => $markup,
   );
-  foreach ($edit_registry AS $edit_route) {
-    $output['#markup'] .= l($edit_route['name'], $edit_route['url']) . '<br/>';
-  }
-  return $output;
 }

includes/delete_datastream.form.inc

@@ -0,0 +1,71 @@
+<?php
+
+/**
+ * @file
+ * The admin/confirmation form to delete/purge a datastream.
+ */
+
+/**
+ * The admin delete datastream form.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param FedoraDatastream $datastream
+ *   The datastream to be deleted.
+ *
+ * @return array
+ *   The drupal form definition.
+ */
+function islandora_delete_datastream_form(array $form, array &$form_state, FedoraDatastream $datastream) {
+  $form_state['datastream'] = $datastream;
+  return confirm_form($form,
+    t('Are you sure you want to delete the %dsid datastream?', array('%dsid' => $datastream->id)),
+    "islandora/object/{$datastream->parent->id}",
+    t('This action cannot be undone.'),
+    t('Delete'),
+    t('Cancel')
+  );
+}
+
+/**
+ * Submit handler for the delete datastream form.
+ *
+ * Purges/Delete's the given FedoraDatastream if possible.
+ *
+ * The ISLANDORA_PRE_PURGE_DATASTREAM_HOOK will query other modules as to
+ * whether the given FedoraDatastream
+ * should be: blocked from purging; state set to 'Deleted'; or purged.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_delete_datastream_form_submit(array $form, array &$form_state) {
+  $datastream = $form_state['datastream'];
+  $datastream_id = $datastream->id;
+  $object = $datastream->parent;
+  $deleted = FALSE;
+  try {
+    $deleted = islandora_delete_datastream($datastream);
+  }
+  catch (Exception $e) {
+    drupal_set_message(t('Error deleting %s datastream from object %o %e', array(
+          '%s' => $datastream_id,
+          '%o' => $object->label,
+          '%e' => $e->getMessage())), 'error');
+  }
+  if ($deleted) {
+    drupal_set_message(t('%d datastream sucessfully deleted from Islandora object %o', array(
+          '%d' => $datastream_id,
+          '%o' => $object->label)));
+  }
+  else {
+    drupal_set_message(t('Error deleting %s datastream from object %o', array(
+          '%s' => $datastream_id,
+          '%o' => $object->label)), 'error');
+  }
+  $form_state['redirect'] = "islandora/object/{$object->id}";
+}

includes/delete_object.form.inc

@@ -0,0 +1,48 @@
+<?php
+
+/**
+ * @file
+ * The admin/confirmation form to purge an object.
+ */
+
+/**
+ * The admin delete object form.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param FedoraObject $object
+ *   The object to be deleted.
+ *
+ * @return array
+ *   The drupal form definition.
+ */
+function islandora_delete_object_form(array $form, array &$form_state, FedoraObject $object) {
+  $form_state['object'] = $object;
+  return confirm_form($form,
+    t('Are you sure you want to delete %title?', array('%title' => $object->label)),
+    "islandora/object/$object->id",
+    t('This action cannot be undone.'),
+    t('Delete'),
+    t('Cancel')
+  );
+}
+
+/**
+ * Delete's the given object.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_delete_object_form_submit(array $form, array &$form_state) {
+  module_load_include('inc', 'islandora', 'includes/datastream');
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $object = $form_state['object'];
+  $parents = islandora_get_parents_from_rels_ext($object);
+  $parent = array_pop($parents);
+  $form_state['redirect'] = isset($parent) ? "islandora/object/{$parent->id}" : 'islandora';
+  islandora_delete_object($object);
+}

includes/dublin_core.inc

@@ -2,15 +2,16 @@
 
 /**
  * @file
- * Implements a simple class for working with Dublin Core data and exporting it
- * back to XML. Inspiration and design shamelessly stolen from the pyfedora
+ * Implements a simple class for working with Dublin Core data.
+ *
+ * Inspiration and design shamelessly stolen from the pyfedora
  * project at http://pypi.python.org/pypi/pyfedora/0.1.0
  */
 
 /**
  * Dublin Core Class
  */
-class Dublin_Core {
+class DublinCore {
 
   public $dc = array(
     'dc:title' => array(),
@@ -32,33 +33,40 @@ class Dublin_Core {
   public $owner;
 
   /**
-   * Constructs a Dublin_Core object from a Fedora_Item object and populates
-   * the $dc array.
-   * @param <type> $item
+   * Constructor.
+   *
+   * @param string $dc_xml
+   *   The Dublin Core XML.
    */
-  function Dublin_Core($dc_xml = NULL) {
-    if (!empty($dc_string)) {
-      $this->dc = self::import_from_xml_string($dc_xml);
+  public function __construct($dc_xml = NULL) {
+    if (!empty($dc_xml)) {
+      $this->dc = self::importFromXMLString($dc_xml);
     }
   }
 
   /**
-   * Add Elements
-   * @param <type> $element_name
-   * @param <type> $value
+   * Add an element.
+   *
+   * @param string $element_name
+   *   The name of the element to add.
+   * @param string $value
+   *   The value of the element to add.
    */
-  function add_element($element_name, $value) {
+  public function addElement($element_name, $value) {
     if (is_string($value) && is_array($this->dc[$element_name])) {
       $this->dc[$element_name][] = $value;
     }
   }
 
   /**
-   * Replace the given DC element with the values in $values
-   * @param string $elemnt_name
-   * @param array $values
+   * Replace the given DC element with the given values.
+   *
+   * @param string $element_name
+   *   The name of the elements to set.
+   * @param mixed $values
+   *   The values of the set the elements too.
    */
-  function set_element($element_name, $values) {
+  public function setElement($element_name, $values) {
     if (is_array($values)) {
       $this->dc[$element_name] = $values;
     }
@@ -68,11 +76,12 @@ class Dublin_Core {
   }
 
   /**
-   * Serialize this object to XML and return it.
-   * @param type $with_preamble
-   * @return type 
+   * Serialize this object as an XML string.
+   *
+   * @return string
+   *   The serialized XML.
    */
-  function as_xml($with_preamble = FALSE) {
+  public function asXML() {
     $dc_xml = new DomDocument();
     $oai_dc = $dc_xml->createElementNS('http://www.openarchives.org/OAI/2.0/oai_dc/', 'oai_dc:dc');
     $oai_dc->setAttribute('xmlns:dc', 'http://purl.org/dc/elements/1.1/');
@@ -93,24 +102,23 @@ class Dublin_Core {
   }
 
   /**
-   * Create dc from dict ( does nothing )
+   * Serializes this object as an array.
+   *
+   * @return array
+   *   The serialized object.
    */
-  static function create_dc_from_dict() {
-    
-  }
-
-  function as_formatted_array() {
+  public function asArray() {
     $dc_array = array();
     foreach ($this as $element) {
       if (!empty($element)) {
         foreach ($element as $field => $values) {
-          // split value if the result value is an array
+          // Split value if the result value is an array.
           if (is_array($values)) {
             $value = '';
             $i = 0;
-            foreach($values as $piece) {
-              if(!empty($piece)) {
-                if($i++) {
+            foreach ($values as $piece) {
+              if (!empty($piece)) {
+                if ($i++) {
                   $value .= ", ";
                 }
                 $value .= $piece;
@@ -121,10 +129,10 @@ class Dublin_Core {
             $value = $values;
           }
           $dc_label = explode(':', $field);
-          $element_label = ucfirst($dc_label[1]);
+          $element_label = drupal_ucfirst($dc_label[1]);
           $dc_array[$field]['label'] = $element_label;
           $dc_array[$field]['value'] = $value;
-          $dc_array[$field]['class'] = strtolower(preg_replace('/[^A-Za-z0-9]/', '-', $field));
+          $dc_array[$field]['class'] = drupal_strtolower(preg_replace('/[^A-Za-z0-9]/', '-', $field));
         }
       }
     }
@@ -133,18 +141,24 @@ class Dublin_Core {
 
 
   /**
-   * Creates a new instance of the class by parsing dc_xml
+   * Creates a new instance of the class by parsing dc_xml.
+   *
    * @param string $dc_xml
-   * @return Dublin_Core
+   *   Dublin Core XML.
+   *
+   * @return DublinCore
+   *   The instantiated object.
    */
-  static function import_from_xml_string($dc_xml) {
+  public static function importFromXMLString($dc_xml) {
     $dc_doc = new DomDocument();
     if ($dc_doc->loadXML($dc_xml)) {
       $oai_dc = $dc_doc->getElementsByTagNameNS('http://purl.org/dc/elements/1.1/', '*');
-      $new_dc = new Dublin_Core();
+      $new_dc = new DublinCore();
       foreach ($oai_dc as $child) {
+        if (isset($new_dc->dc[$child->nodeName])) {
           array_push($new_dc->dc[$child->nodeName], $child->nodeValue);
         }
+      }
       return $new_dc;
     }
     else {
@@ -153,4 +167,3 @@ class Dublin_Core {
   }
 
 }
-

includes/ingest-menu.inc

@@ -1,46 +0,0 @@
-<?php
-
-/**
- * @file
- * Menu callback functionality for islandora/ingest
- */
-
-/**
- * Callback function for islandora/ingest/%collection_pid
- * @TODO: validate?: pid, registry return
- * @param string $pid
- */
-function islandora_ingest_callback($collection_object) {
-  if(!$collection_object) {
-    return drupal_not_found();
-  }
-
-  $ingest_registry = module_invoke_all('islandora_ingest_registry', $collection_object);
-  $registry_count = count($ingest_registry);
-  
-  if ($registry_count == 0) {
-    // No ingest implementations.
-    drupal_set_message(t('There are no ingest methods specified for @name.', array('@name', $collection_object->label)));
-    drupal_goto('islandora/object/' . $collection_object->id);
-  }
-  elseif ($registry_count == 1) {
-    // One registry implementation, go there
-    drupal_goto($ingest_registry[0]['url']);
-  }
-  else {
-    // Multiple ingest routes registered
-    return islandora_ingest_registry_render($ingest_registry);
-  }
-}
-
-//@TODO: theme
-function islandora_ingest_registry_render($ingest_registry) {
-  $output = array(
-    '#type' => 'markup',
-    '#markup' => '',
-  );
-  foreach ($ingest_registry AS $ingest_route) {
-    $output['#markup'] .= l($ingest_route['name'], $ingest_route['url']) . '<br/>';
-  }
-  return $output;
-}

includes/ingest.form.inc

@@ -0,0 +1,551 @@
+<?php
+
+/**
+ * @file
+ * Defines the multi-page ingest form and any relevant hooks and functions.
+ */
+
+/**
+ * Ingest form build function.
+ *
+ * Initializes the form state, and builds the initial list of steps, excutes
+ * the current step.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ * @param array $configuration
+ *   An associative array of configuration values that are used to build the
+ *   list of steps to be executed, including:
+ *   - id: The PID with which the object should be created.
+ *   - namespace: The PID namespace in which the object should be created.
+ *     (id is used first, if it is given).
+ *   - label: The initial label for the object. Defaults to "New Object".
+ *   - collections: An array of collection PIDs, to which the new object should
+ *     be related.
+ *   - models: An array of content model PIDs, to which the new object might
+ *     subscribe
+ *
+ * @return array
+ *   The form definition of the current step.
+ */
+function islandora_ingest_form(array $form, array &$form_state, array $configuration) {
+  islandora_ingest_form_init_form_state($form_state, $configuration);
+  $form = islandora_ingest_form_execute_step($form, $form_state);
+  return $form;
+}
+
+/**
+ * Prepares/Initializes the form state for use.
+ *
+ * Also cleans up or loads any data required.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ * @param array $configuration
+ *   A list of key value pairs that are used to build the list of steps to be
+ *   executed.
+ */
+function islandora_ingest_form_init_form_state(array &$form_state, array $configuration) {
+  // First time initialization of storage.
+  islandora_ingest_form_init_form_state_storage($form_state, $configuration);
+}
+
+/**
+ * Initializes the form_state storage for use in the ingest multi-page forms.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ * @param array $configuration
+ *   A list of key value pairs that are used to build the list of steps to be
+ *   executed.
+ */
+function islandora_ingest_form_init_form_state_storage(array &$form_state, array $configuration) {
+  if (empty($form_state['islandora'])) {
+    module_load_include('inc', 'islandora', 'includes/utilities');
+    // Use ID if given.
+    $id = isset($configuration['id']) ? $configuration['id'] : NULL;
+    // Use namespace if ID not given.
+    $namespace = isset($configuration['namespace']) && !isset($id) ? $configuration['namespace'] : $id;
+    $label = isset($configuration['label']) ? $configuration['label'] : 'New Object';
+    $relationship_map = function($o) {
+      return array('relationship' => 'isMemberOfCollection', 'pid' => $o);
+    };
+    $relationships = empty($configuration['collections']) ? array() : array_map($relationship_map, $configuration['collections']);
+    $object = islandora_prepare_new_object($namespace, $label, array(), array(), $relationships);
+    $form_state['islandora'] = array(
+      'step_id' => NULL,
+      'objects' => array($object),
+      'configuration' => $configuration,
+      'step_storage' => array(),
+    );
+  }
+
+  $steps = islandora_ingest_get_steps($form_state);
+  if ($form_state['islandora']['step_id'] === NULL || !array_key_exists(
+    $form_state['islandora']['step_id'], $steps)) {
+    reset($steps);
+    $form_state['islandora']['step_id'] = key($steps);
+  }
+
+  // Stash the current configuration in the step.
+  $storage = &islandora_ingest_form_get_step_storage($form_state);
+  $storage['configuration'] = $form_state['islandora']['configuration'];
+}
+
+/**
+ * Build a list of steps given only configuration.
+ *
+ * XXX: This is used to give an indication of whether there are any steps for a
+ *   given list of content models.
+ *
+ * @param array $configuration
+ *   The list of key/value pairs of configuration.
+ */
+function islandora_ingest_get_approximate_steps(array $configuration) {
+  $fake_form_state = array(
+    'islandora' => array(
+      'configuration' => $configuration,
+    ),
+  );
+  $steps = islandora_ingest_get_steps($fake_form_state);
+  drupal_static_reset('islandora_ingest_get_steps');
+  return $steps;
+}
+
+/**
+ * Executes the current step.
+ *
+ * Builds the form definition and appends any additonal elements required for
+ * the step to function.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return array
+ *   The form definition of the current step.
+ */
+function islandora_ingest_form_execute_step(array $form, array &$form_state) {
+  // Load any required files for the current step.
+  islandora_ingest_form_step_form_load_include($form_state);
+
+  $step_info = islandora_ingest_form_get_step_info($form_state);
+
+  switch ($step_info['type']) {
+    case 'form':
+      $args = array($form, &$form_state);
+      $args = isset($step_info['args']) ? array_merge($args, $step_info['args']) : $args;
+      $form = call_user_func_array($step_info['form_id'], $args);
+      return islandora_ingest_form_stepify($form, $form_state, $step_info);
+
+    case 'batch':
+      // @todo Implement if possible.
+      break;
+  }
+  return array();
+}
+
+/**
+ * Append Prev/Next buttons submit/validation handlers etc.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ * @param array $step_info
+ *   The info for building the current form step.
+ *
+ * @return array
+ *   The stepified drupal form definition for the given step.
+ */
+function islandora_ingest_form_stepify(array $form, array &$form_state, array $step_info) {
+  $step = islandora_ingest_form_get_step_number($form_state);
+
+  $first_step = $step > 0;
+  $last_step = $step == (islandora_ingest_form_get_step_count($form_state) - 1);
+  $form['prev'] = $first_step ? islandora_ingest_form_previous_button() : NULL;
+  $form['next'] = $last_step ? islandora_ingest_form_ingest_button($step_info) : islandora_ingest_form_next_button($step_info);
+  return $form;
+}
+
+/**
+ * Defines the previous button for the ingest form.
+ *
+ * @return array
+ *   The previous button for the ingest form.
+ */
+function islandora_ingest_form_previous_button() {
+  return array(
+    '#type' => 'submit',
+    '#value' => t('Previous'),
+    '#name' => 'prev',
+    '#submit' => array('islandora_ingest_form_previous_submit'),
+    // #limit_validation_errors, is why when the previous button is pressed no
+    // values persisted in the form_state, but its also what allows us to go
+    // back when validation errors occur. To have a better solution going
+    // forward we can either limit validation only on required fields, or we can
+    // convert all required fields to use #element_validation functions, and
+    // Remove the need for #limit_validation_errors. Or maybe there is some
+    // other solution, regardless of what it is, it won't be standard.
+    '#limit_validation_errors' => array(),
+  );
+}
+
+/**
+ * Get the current step.
+ *
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param string $step_id
+ *   The ID of the step to get.
+ */
+function islandora_ingest_form_get_step_number(array $form_state, $step_id = NULL) {
+  if ($step_id === NULL) {
+    $step_id = islandora_ingest_form_get_step_id($form_state);
+  }
+
+  $steps = array_flip(array_keys(islandora_ingest_form_get_steps($form_state)));
+  return $steps[$step_id];
+}
+
+/**
+ * The submit handler for the ingest form previous button.
+ *
+ * Stores the current form steps values in the form storage.
+ * Moves the focus of the multi-page ingest form back one step.
+ * Restores the form values for the previous step.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ */
+function islandora_ingest_form_previous_submit(array $form, array &$form_state) {
+  $step = islandora_ingest_form_get_step_number($form_state);
+  islandora_ingest_form_stash_info($form_state);
+  $step = max(array($step - 1, 0));
+  $form_state['islandora']['step_id'] = islandora_ingest_form_get_step_id($form_state, $step);
+  islandora_ingest_form_grab_info($form_state);
+  $form_state['rebuild'] = TRUE;
+}
+
+/**
+ * Defines the next button for the ingest form.
+ *
+ * Adds submit/validate handlers for the form step if they exist.
+ *
+ * @return array
+ *   The next button for the ingest form.
+ */
+function islandora_ingest_form_next_button(array $step_info) {
+  $form_id = $step_info['form_id'];
+  $validate_callback = $form_id . '_validate';
+  $validate = function_exists($validate_callback) ? array($validate_callback) : NULL;
+  $submit_callback = $form_id . '_submit';
+  $submit = function_exists($submit_callback) ? array($submit_callback, 'islandora_ingest_form_next_submit') : array('islandora_ingest_form_next_submit');
+  return array(
+    '#type' => 'submit',
+    '#value' => t('Next'),
+    '#name' => 'next',
+    '#validate' => $validate,
+    '#submit' => $submit,
+  );
+}
+
+/**
+ * The submit handler for the ingest form next button.
+ *
+ * Stores the current form steps values in the form storage.
+ * Moves the focus of the multi-page ingest form forward one step.
+ * Restores the form values for the next step if present.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ */
+function islandora_ingest_form_next_submit(array $form, array &$form_state) {
+  $step = islandora_ingest_form_get_step_number($form_state);
+  drupal_static_reset('islandora_ingest_form_get_steps');
+  islandora_ingest_form_stash_info($form_state);
+  $step = min(array($step + 1, islandora_ingest_form_get_step_count($form_state) - 1));
+  $form_state['islandora']['step_id'] = islandora_ingest_form_get_step_id($form_state, $step);
+  islandora_ingest_form_grab_info($form_state);
+  $form_state['rebuild'] = TRUE;
+}
+
+/**
+ * Push current info into the current step's storage.
+ */
+function islandora_ingest_form_stash_info(array &$form_state) {
+  $storage = &islandora_ingest_form_get_step_storage($form_state);
+  $storage['values'] = $form_state['values'];
+  unset($form_state['values']);
+}
+
+/**
+ * Pops the info for the given step from storage into the form_state.
+ */
+function islandora_ingest_form_grab_info(array &$form_state) {
+  $storage = islandora_ingest_form_get_step_storage($form_state);
+  $form_state['values'] = isset($storage['values']) ? $storage['values'] : array();
+  if (isset($storage['configuration'])) {
+    $form_state['islandora']['configuration'] = $storage['configuration'];
+  }
+}
+
+/**
+ * Defines the ingest button for the ingest form.
+ *
+ * This button is only shown on the last page of the multi-page ingest form.
+ *
+ * @return array
+ *   The ingest button for the ingest form.
+ */
+function islandora_ingest_form_ingest_button(array $step_info) {
+  $form_id = $step_info['form_id'];
+  $validate_callback = $form_id . '_validate';
+  $validate = function_exists($validate_callback) ? array($validate_callback) : NULL;
+  $submit_callback = $form_id . '_submit';
+  $submit = function_exists($submit_callback) ? array($submit_callback, 'islandora_ingest_form_submit') : array('islandora_ingest_form_submit');
+  return array(
+    '#type' => 'submit',
+    '#name' => 'ingest',
+    '#value' => t('Ingest'),
+    '#validate' => $validate,
+    '#submit' => $submit,
+  );
+}
+
+/**
+ * The submit handler for the ingest form.
+ *
+ * Attempts to ingest every object built by the previous steps.
+ *
+ * @param array $form
+ *   The drupal form.
+ * @param array $form_state
+ *   The drupal form state.
+ */
+function islandora_ingest_form_submit(array $form, array &$form_state) {
+  foreach ($form_state['islandora']['objects'] as $object) {
+    try {
+      islandora_add_object($object);
+      $form_state['redirect'] = "islandora/object/{$object->id}";
+    }
+    catch (Exception $e) {
+      // If post hooks throws it may already exist at this point but may be
+      // invalid, so don't say failed.
+      watchdog('islandora', $e->getMessage(), NULL, WATCHDOG_ERROR);
+      drupal_set_message(t('A problem occured while ingesting "@label" (ID: @pid), please notifiy the administrator.', array('@label' => $object->label, '@pid' => $object->id)), 'error');
+    }
+  }
+}
+
+/**
+ * Gets the configuration used to create the multi-page ingest form.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return array
+ *   The configuration used to generate the multi-page ingest forms.
+ */
+function &islandora_ingest_form_get_configuration(array &$form_state) {
+  return $form_state['islandora']['configuration'];
+}
+
+/**
+ * Gets a reference to the stored NewFedoraObject's.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return array
+ *   A reference to the stored NewFedoraObjects to be ingested when the final
+ *   step submits.
+ */
+function &islandora_ingest_form_get_objects(array $form_state) {
+  return $form_state['islandora']['objects'];
+}
+
+/**
+ * Gets a single object from the stored NewFedoraObject's.
+ *
+ * @note - In our current use case we are only dealing with a single object
+ *   ingest, this makes it convenient to access it. Ideally the steps
+ *   implementations will be abstracted to be indifferent to what object it's
+ *   currently working on. This will act as a placeholder for such
+ *   functionality.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return NewFedoraObject
+ *   Returns the 'current' object in the array of NewFedoraObjects, generally
+ *   this is only used when there is one object in the list of objects.
+ */
+function islandora_ingest_form_get_object(array $form_state) {
+  $objects = &islandora_ingest_form_get_objects($form_state);
+  return current($objects);
+}
+
+/**
+ * Get a reference to the current step index.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return string
+ *   The current step index.
+ */
+function islandora_ingest_form_get_step_id(array &$form_state, $step_number = NULL) {
+  if ($step_number === NULL) {
+    return $form_state['islandora']['step_id'];
+  }
+  else {
+    $steps = array_keys(islandora_ingest_form_get_steps($form_state));
+    return $steps[$step_number];
+  }
+}
+
+/**
+ * Get the step info of the given step or the current step if none is given.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ * @param int $step
+ *   The index of the step to get.
+ *
+ * @return int
+ *   The step info of the requested step if found, NULL otherwise.
+ */
+function islandora_ingest_form_get_step_info(array &$form_state, $step = NULL) {
+  $step = isset($step) ? $step : islandora_ingest_form_get_step_id($form_state);
+  $steps = islandora_ingest_form_get_steps($form_state);
+  if (!empty($steps[$step])) {
+    return $steps[$step];
+  }
+  // @todo deal with unknown case.
+  return NULL;
+}
+
+/**
+ * Get general storage for the given/current step.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ * @param string $step_id
+ *   The ID of the step.
+ */
+function &islandora_ingest_form_get_step_storage(array &$form_state, $step_id = NULL) {
+  if ($step_id === NULL) {
+    $step_id = islandora_ingest_form_get_step_id($form_state);
+  }
+
+  if (!isset($form_state['islandora']['step_storage'][$step_id])) {
+    $form_state['islandora']['step_storage'][$step_id] = array();
+  }
+
+  return $form_state['islandora']['step_storage'][$step_id];
+}
+
+/**
+ * Get a reference to the steps stored in the form state.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return array
+ *   All the steps to be used in the ingest process.
+ */
+function islandora_ingest_form_get_steps(array &$form_state) {
+  return islandora_ingest_get_steps($form_state);
+}
+
+/**
+ * Call form_load_include, for the current step if it defines a required file.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ */
+function islandora_ingest_form_step_form_load_include(array &$form_state) {
+  form_load_include($form_state, 'inc', 'islandora', 'includes/ingest.form');
+  $step_info = islandora_ingest_form_get_step_info($form_state);
+  // Load include files.
+  if (isset($step_info['file']) && isset($step_info['module'])) {
+    $matches = array();
+    preg_match('/^(.*)\.(.*)$/', $step_info['file'], $matches);
+    list($file, $name, $type) = $matches;
+    form_load_include($form_state, $type, $step_info['module'], $name);
+  }
+}
+
+/**
+ * Get the number of steps.
+ *
+ * @param array $form_state
+ *   The drupal form state.
+ *
+ * @return int
+ *   The number of steps.
+ */
+function islandora_ingest_form_get_step_count(array $form_state) {
+  $steps = islandora_ingest_form_get_steps($form_state);
+  return count($steps);
+}
+
+/**
+ * Buildes the initial list of ingest steps.
+ *
+ * Sorted by weight expected range between -50 to 50.
+ *
+ * The sort order is undefined for steps which have the same weight.
+ *
+ * @param array $form_state
+ *   The Drupal form state.
+ *
+ * @return array
+ *   The list of sorted ingest steps as defined by all implementers
+ *   of ISLANDORA_INGEST_STEP_HOOK.
+ */
+function &islandora_ingest_get_steps(array &$form_state) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $steps = &drupal_static(__FUNCTION__);
+
+  if (!isset($steps)) {
+    $steps = array();
+    $configuration = islandora_ingest_form_get_configuration($form_state);
+    $models = array();
+    if (isset($configuration['selected_models'])) {
+      $models = $configuration['selected_models'];
+    }
+    elseif (isset($configuration['models'])) {
+      $models = $configuration['models'];
+    }
+
+    foreach (islandora_build_hook_list(ISLANDORA_INGEST_STEP_HOOK, $models) as $hook) {
+      // Need to pass by ref...  But don't really want an alter.
+      foreach (module_implements($hook) as $module) {
+        $function = $module . '_' . $hook;
+        $module_steps = (array) $function($form_state);
+        $steps = array_merge($steps, $module_steps);
+      }
+    }
+
+    // Remove NULL values.
+    $steps = array_filter($steps);
+    uasort($steps, 'drupal_sort_weight');
+    foreach (islandora_build_hook_list(ISLANDORA_INGEST_STEP_HOOK, $models) as $hook) {
+      $form_state_copy = $form_state;
+      drupal_alter($hook, $steps, $form_state_copy);
+    }
+
+    uasort($steps, 'drupal_sort_weight');
+  }
+
+  return $steps;
+}

includes/ingest.menu.inc

@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * @file
+ * Ingest Menu callback hooks.
+ */
+
+/**
+ * Menu callback, Renders the multi-page ingest form if possible.
+ *
+ * @return string
+ *   HTML representing the mult-page ingest form.
+ */
+function islandora_ingest_callback() {
+  $configuration = islandora_ingest_get_configuration();
+  if ($configuration === FALSE) {
+    drupal_set_message(t('Invalid ingest configuration.'), 'error');
+    $redirect = isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : '<front>';
+    // Redirect back to referer or top level collection.
+    drupal_goto($redirect);
+  }
+  module_load_include('inc', 'islandora', 'includes/ingest.form');
+  return drupal_get_form('islandora_ingest_form', $configuration);
+}
+
+/**
+ * Fetches/validates the ingest configuration from the $_GET parameters.
+ *
+ * Generic parameters as accepted by all ingest processes, other modules may
+ * add to this list.
+ *   id -> The pid of the object to create. optional.
+ *   models -> Comma delimited list of all the content models the created object
+ *             should have.
+ *   collections -> Comma delimited list of all the collections the created
+ *                  object should belong to.
+ *
+ * @return array
+ *   The configuration options used to build the multi-paged ingest process.
+ */
+function islandora_ingest_get_configuration() {
+  $configuration = $_GET;
+  unset($configuration['q']);
+  $convert_to_array_keys = array_intersect(array('models', 'collections'), array_keys($configuration));
+  foreach ($convert_to_array_keys as $key) {
+    $configuration[$key] = explode(',', $configuration[$key]);
+  }
+  // @todo add hook for manipulating/validating the configuration.
+  return islandora_valid_ingest_configuration($configuration) ? $configuration : FALSE;
+}
+
+/**
+ * Validates the given ingest configuration.
+ *
+ * At the moment it requires that models and collections are present.
+ *
+ * @param array $configuration
+ *   The key value pairs that are used to build the multi-paged ingest process.
+ *
+ * @return bool
+ *   TRUE if the configuration is valid, FALSE otherwise.
+ */
+function islandora_valid_ingest_configuration(array $configuration) {
+  // @todo Add more robust validation, add watchdog logs, etc.
+  return isset($configuration['models']) && isset($configuration['collections']);
+}

includes/islandora.ingest.inc

@@ -1,27 +0,0 @@
-<?php
-
-function islandora_ingest_get_information(AbstractFedoraObject $collection_object) {
-  $models = $collection_object->models;
-  $collection_info = module_invoke_all('islandora_ingest_get_information', $models, $collection_object);
-
-  return $collection_info;
-}
-
-function islandora_ingest_get_object($content_models, $collection_pid, $relationship, $namespace) {
-  module_load_include('inc', 'islandora', 'includes/tuque');
-  global $user;
-  $connection = new IslandoraTuque($user);
-  $object = $connection->repository->constructObject($namespace);
-  foreach($content_models as $content_model) {
-    $object->relationships->add(FEDORA_MODEL_URI, 'hasModel', $content_model['pid']);
-  }
-  $object->relationships->add(FEDORA_RELS_EXT_URI, $relationship, $collection_pid);
-  module_invoke_all('islandora_ingest_pre_ingest', $object, $content_models, $collection_pid);
-  return $object;
-}
-
-function islandora_ingest_add_object(&$object) {
-  $object->repository->ingestObject($object);
-  module_invoke_all('islandora_ingest_post_ingest', $object);
-  return $object;
-}

includes/mime_detect.inc

@@ -1,9 +1,9 @@
 <?php
 
-
-
 /**
  * @file
+ * Class for determining MIME types and file extensions.
+ *
  * This class inspired by Chris Jean's work, here:
  * http://chrisjean.com/2009/02/14/generating-mime-type-in-php-is-not-magic/
  *
@@ -19,7 +19,6 @@
  *
  * Drupal 7 will have better mime handlers.  See:
  * http://api.drupal.org/api/function/file_default_mimetype_mapping/7
- *
  */
 
 class MimeDetect {
@@ -199,7 +198,7 @@ class MimeDetect {
   protected $etcMimeTypes = '/etc/mime.types';
 
   /**
-   * Construtor
+   * Construtor.
    */
   public function __construct() {
 
@@ -213,12 +212,11 @@ class MimeDetect {
   }
 
   /**
-   * description: returns a mimetype associated with the file extension of
-   * $filename
+   * Gets MIME type associated with the give file's extension.
    *
    * @param string $filename
    *   The filename
-   * @param boolean $debug
+   * @param bool $debug
    *   Returns a debug array.
    *
    * @return mixed
@@ -227,7 +225,7 @@ class MimeDetect {
   public function getMimetype($filename, $debug = FALSE) {
 
     $file_name_and_extension = explode('.', $filename);
-    $ext = strtolower(array_pop($file_name_and_extension));
+    $ext = drupal_strtolower(array_pop($file_name_and_extension));
 
     if (!empty($this->protectedMimeTypes[$ext])) {
       if (TRUE === $debug) {
@@ -263,12 +261,15 @@ class MimeDetect {
   }
 
   /**
-   * function: get_extension
-   * description: returns *one* valid file extension for a given $mime_type
+   * Gets one valid file extension for a given MIME type.
    *
-   * @param type $mime_type
-   * @param type $debug
-   * @return type
+   * @param string $mime_type
+   *   The MIME type.
+   * @param bool $debug
+   *   Generated debug information?
+   *
+   * @return string
+   *   The file extensions associated with the given MIME type.
    */
   public function getExtension($mime_type, $debug = FALSE) {
 
@@ -296,11 +297,14 @@ class MimeDetect {
   }
 
   /**
-   * function: systemMimetypeExtensions
-   * description: populates an internal array of mimetype/extension associations
-   * from the system mime.types file, or a local mime.types if one is found (see
-   * __constuctor).
-   * return: array of mimetype => extension
+   * Gets an associative array of MIME type and extension associations.
+   *
+   * Users the system mime.types file, or a local mime.types if one is found
+   * @see MIMEDetect::__constuctor()
+   *
+   * @return array
+   *   An associative array where the keys are MIME types and the values
+   *   extensions.
    */
   protected function systemMimetypeExtensions() {
     $out = array();
@@ -328,11 +332,14 @@ class MimeDetect {
   }
 
   /**
-   * function: systemMimetypeExtensions
-   * description: populates an internal array of mimetype/extension associations
-   * from the system mime.types file, or a local mime.types if one is found (see
-   * __constuctor).
-   * return: array of extension => mimetype
+   * Gets a associative array of extensions and MIME types.
+   *
+   * Users the system mime.types file, or a local mime.types if one is found
+   * @see MIMEDetect::__constuctor()
+   *
+   * @return array
+   *   An associative array where the keys are extensions and the values
+   *   MIME types.
    */
   protected function systemExtensionMimetypes() {
     $out = array();
@@ -340,20 +347,22 @@ class MimeDetect {
       $file = fopen($this->etcMimeTypes, 'r');
       while (($line = fgets($file)) !== FALSE) {
         $line = trim(preg_replace('/#.*/', '', $line));
-        if (!$line)
+        if (!$line) {
           continue;
+        }
         $parts = preg_split('/\s+/', $line);
-        if (count($parts) == 1)
+        if (count($parts) == 1) {
           continue;
+        }
         // A single part means a mimetype without extensions, which we ignore.
         $type = array_shift($parts);
-        foreach ($parts as $part)
+        foreach ($parts as $part) {
           $out[$part] = $type;
         }
+      }
       fclose($file);
     }
     return $out;
   }
 
 }
-

includes/object.entity_controller.inc

@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * @file
+ * Very basic entity controller.
+ */
+
+class IslandoraObjectEntityController implements DrupalEntityControllerInterface {
+
+  /**
+   * Constructor.
+   *
+   * @param string $entity_type
+   *   The type of entity.
+   */
+  public function __construct($entity_type) {
+    // No-op...
+  }
+
+  /**
+   * Load all the entities.
+   *
+   * @param array $ids
+   *   The ID's of the entities.
+   * @param array $conditions
+   *   The conditions to apply.
+   */
+  public function load($ids = array(), $conditions = array()) {
+    if (!empty($conditions)) {
+      throw new Exception('Conditions not implemented.');
+    }
+
+    $loaded = array();
+    foreach ($ids as $id) {
+      $load = islandora_object_load($id);
+      if ($load) {
+        $loaded[] = $load;
+      }
+    }
+
+    return $loaded;
+  }
+
+  /**
+   * Reset the cache.
+   *
+   * @param array $ids
+   *   The ID's of the entities.
+   */
+  public function resetCache(array $ids = NULL) {
+    // no-op.
+  }
+}

includes/object_properties.form.inc

@@ -0,0 +1,122 @@
+<?php
+
+/**
+ * @file
+ * Contains admin form functions for editing an object's properties.
+ */
+
+/**
+ * Object properties admin form.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param FedoraObject $object
+ *   The object whose properties this form will modify.
+ *
+ * @return array
+ *   The drupal form definition.
+ */
+function islandora_object_properties_form(array $form, array &$form_state, FedoraObject $object) {
+  drupal_set_title($object->label);
+  $form_state['object'] = $object;
+  return array(
+    'pid' => array(
+      '#type' => 'hidden',
+      '#value' => $object->id,
+    ),
+    'object_label' => array(
+      '#title' => t('Item Label'),
+      '#default_value' => $object->label,
+      '#required' => 'TRUE',
+      '#description' => t('A Human readable label'),
+      // Double the normal length.
+      '#size' => 120,
+      // Max length for a Fedora Label.
+      '#maxlength' => 255,
+      '#type' => 'textfield',
+    ),
+    // @todo Make this into an autocomplete field that list the users in the
+    // system as well.
+    'object_owner' => array(
+      '#title' => t('Owner'),
+      '#default_value' => $object->owner,
+      '#required' => FALSE,
+      '#description' => t('The owner id'),
+      '#type' => 'textfield',
+    ),
+    'object_state' => array(
+      '#title' => t('State'),
+      '#default_value' => $object->state,
+      '#required' => TRUE,
+      '#description' => t('The items state one of active, inactive or deleted'),
+      '#type' => 'select',
+      '#options' => array('A' => 'Active', 'I' => 'Inactive', 'D' => 'Deleted'),
+    ),
+    'submit' => array(
+      '#type' => 'submit',
+      '#value' => 'Update Properties',
+    ),
+    'delete' => array(
+      '#type' => 'submit',
+      '#value' => t('Delete'),
+      '#submit' => array('islandora_object_properties_form_delete'),
+      '#limit_validation_errors' => array(array('pid')),
+    ),
+  );
+}
+
+/**
+ * Submit handler for object properties admin form.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_object_properties_form_submit(array $form, array &$form_state) {
+  $object = $form_state['object'];
+  $owner = $form_state['values']['object_owner'];
+  $state = $form_state['values']['object_state'];
+  $label = $form_state['values']['object_label'];
+  if (isset($owner) && $owner != $object->owner) {
+    try {
+      $object->owner = $owner;
+      drupal_set_message(t('Successfully updated owner %s', array('%s' => $owner)));
+    }
+    catch (Exception $e) {
+      form_set_error('object_owner', t('Error updating owner %s', array('%s' => $e->getMessage())));
+    }
+  }
+  if (isset($state) && $state != $object->state) {
+    try {
+      $object->state = $state;
+      drupal_set_message(t('Successfully updated state %s', array('%s' => $state)));
+    }
+    catch (Exception $e) {
+      form_set_error('object_state', t('Error updating state %s', array('%s' => $e->getMessage())));
+    }
+  }
+  if (isset($label) && $label != $object->label) {
+    try {
+      $object->label = $label;
+      drupal_set_message(t('Successfully updated label %s', array('%s' => check_plain($label))));
+    }
+    catch (Exception $e) {
+      form_set_error(t('Error updating label %s', array('%s' => $e->getMessage())));
+    }
+  }
+}
+
+/**
+ * Callback function for object properties admin form delete button.
+ *
+ * @param array $form
+ *   The Drupal form.
+ * @param array $form_state
+ *   The Drupal form state.
+ */
+function islandora_object_properties_form_delete(array $form, array &$form_state) {
+  drupal_goto("islandora/object/{$form_state['values']['pid']}/delete");
+}

includes/object_properties.inc

@@ -1,115 +0,0 @@
-<?php
-
-/**
- * may want more validation here the only restrictions i see on
- * the object label and owner is the foxml schema says they should be
- * an xsd:string there maybe further restrictions such as length but they aren't
- * defined in the schema.
- * @param array $form
- * @param array $form_state
- * @return boolean 
- */
-function islandora_edit_properties_form_validate($form, &$form_state) {
-  $islandora_object = islandora_object_load($form_state['values']['pid']);
-  if (!isset($islandora_object)) {
-    form_set_error('', t('Could not update properties object not found.'));
-    return FALSE;
-  }
-}
-
-/**
- *
- * @param array $form
- * @param array $form_state 
- */
-function islandora_edit_properties_form_submit($form, &$form_state) {
-  $islandora_object = islandora_object_load($form_state['values']['pid']);
-  $owner = $form_state['values']['object_owner'];
-  $state = $form_state['values']['object_state'];
-  $label = $form_state['values']['object_label'];
-  if (isset($owner) && $owner != $islandora_object->owner) {
-    try {
-      $islandora_object->owner = $owner;
-      drupal_set_message(t('Successfully updated owner %s', array('%s' => $owner)));
-    } catch (Exception $e) {
-      form_set_error('object_owner',t('Error updating owner %s', array('%s'=> $e->getMessage())));
-    }
-  }
-  if (isset($state) && $state != $islandora_object->state) {
-    try {
-      $islandora_object->state = $state;
-      drupal_set_message(t('Successfully updated state %s', array('%s' => $state)));
-    } catch (Exception $e) {
-      form_set_error('object_state',t('Error updating state %s', array('%s'=> $e->getMessage())));
-    }
-  }
-  if (isset($label) && $label != $islandora_object->label) {
-    try {
-      $islandora_object->label = $label;
-      drupal_set_message(t('Successfully updated label %s', array('%s' => check_plain($label))));
-    } catch (Exception $e) {
-      form_set_error(t('Error updating label %s', array('%s' => $e->getMessage())));
-    }
-  }
-}
-
-function islandora_edit_properties_form_delete($form, &$form_state) {
-  $islandora_object = $form_state['values']['pid'];
-  drupal_goto("islandora/object/$islandora_object/delete");
-}
-
-/**
- *
- * @param array $form
- * @param array $form_state
- * @param string $object_id
- *   an object id
- * @return array 
- */
-function islandora_edit_properties_form($form, &$form_state, $object) {
-  $form = array();
-  if (!isset($object)) {
-    return NULL;
-  }
-  drupal_set_title($object->label);
-  $form['pid'] = array(
-    '#type' => 'hidden',
-    '#value' => $object->id,
-  );
-
-  $form['object_label'] = array(
-    '#title' => t('Item Label'),
-    '#default_value' => $object->label,
-    '#required' => 'TRUE',
-    '#description' => t('A Human readable label'),
-    '#type' => 'textfield'
-  );
-  $form['object_owner'] = array(
-    '#title' => t('Owner'),
-    '#default_value' => $object->owner,
-    '#required' => FALSE,
-    '#description' => t('The owner id'),
-    '#type' => 'textfield',
-  );
-  $form['object_state'] = array(
-    '#title' => t('State'),
-    '#default_value' => $object->state,
-    '#required' => TRUE,
-    '#description' => t('The items state one of active, inactive or deleted'),
-    '#type' => 'select',
-    '#options' => array('A' => 'Active', 'I' => 'Inactive', 'D' => 'Deleted'),
-  );
-  $form['submit'] = array(
-    '#type' => 'submit',
-    '#value' => 'Update Properties',
-  );
-  $form['delete'] = array(
-    '#type' => 'submit',
-    '#value' => t('Delete'),
-    '#submit' => array('islandora_edit_properties_form_delete'),
-    '#limit_validation_errors' => array(array('pid')),
-  );
-  return $form;
-}
-
-?>

includes/purge.form.inc

@@ -1,160 +0,0 @@
-<?php
-
-/**
- * Gives the option of deleting or purging and object.
- *
- * The default behaviour is to purge the object to reduce maintenance.
- * If a solution pack wants to change this behaviour and have the object set to deleted then
- * it can respond to the 'islandora_pre_purge_object' hook with an array containing the pair
- * 'delete' => TRUE.
- * Once the object has been deleted/purged then a second call lets the solution packs know that
- * the object has been dealt with. In this call the object id and content models are sent out so
- * that the solution packs can act on this news. There is no guarantee that the object still exists
- * and so the object object isn't sent.
- *
- * @param string $object_id
- *   ID of the object
- * @return type
- */
-function islandora_purge_object_submit($form, &$form_state) {
-
-  $object_id = $form_state['values']['pid'];
-  $collection = $form_state['values']['col'];
-
-  if (!$object_id) {
-    drupal_set_message(t('Cannot remove object, object id not set'));
-    return;
-  }
-
-  $object = islandora_object_load($object_id);
-
-  if (!$object) {
-    drupal_set_message(t('Could not remove object, object not found'));
-    return;
-  }
-  $content_models = $object->models;
-  $arr = module_invoke_all('islandora_pre_purge_object', $object); //notify modules of pending deletion
-  if (isset($arr['delete']) && $arr['delete']) {
-    try {
-      $object->delete();
-    } catch (Exception $e) {
-      drupal_set_message(t('Error deleting Islandora object %s %e', array('%s' => $object_id, '%e' => $e)), 'error');
-      return "";
-    }
-  }
-  else {
-    try {
-      $object->repository->purgeObject($object_id);
-    } catch (Exception $e) {
-      drupal_set_message(t('Error purging Islandora object %s %e', array('%s' => $object_id, '%e' => $e)), 'error');
-      return "";
-    }
-  }
-  module_invoke_all('islandora_post_purge_object', $object_id, $content_models);  //notify modules post deletion
-  drupal_goto($collection);
-}
-
-function islandora_purge_object($form, &$form_state, $object) {
-  module_load_include('inc', 'islandora', 'includes/datastream');
-
-  $parent = islandora_datastream_get_parents($object);
-  $key = array_keys($parent);
-
-  if (count($key) > 0) {
-    $redirect = "islandora/object/$key[0]";
-  }
-  else {
-    $redirect = "islandora";
-  }
-
-  $form['pid'] = array('#type' => 'value', '#value' => $object->id);
-  $form['col'] = array('#type' => 'value', '#value' => $redirect);
-
-  return confirm_form($form,
-    t('Are you sure you want to delete %title?', array('%title' => $object->label)),
-    "islandora/object/$object->id",
-    t('This action cannot be undone.'),
-    t('Delete'),
-    t('Cancel')
-  );
-}
-
-function islandora_purge_datastream($form, &$form_state, $object, $datastream_id) {
-  module_load_include('inc', 'islandora', 'includes/datastream');
-
-  $datastream = $object->getDatastream($datastream_id);
-
-  $redirect = "islandora/object/$object->id";
-
-  $form['pid'] = array('#type' => 'value', '#value' => $object->id);
-  $form['dsid'] = array('#type' => 'value', '#value' => $datastream_id);
-  $form['col'] = array('#type' => 'value', '#value' => $redirect);
-
-  return confirm_form($form,
-    t('Are you sure you want to delete the %dsid datastream?', array('%dsid' => $datastream->id)),
-    "islandora/object/$object->id",
-    t('This action cannot be undone.'),
-    t('Delete'),
-    t('Cancel')
-  );
-}
-
-/**
- * Gives the option of purging or deleting a datastream.
- *
- * The default behaviour is to purge the datastream but this can be overridden using the
- * 'islandora_pre_purge_datastream' hook. The returned array can include a 'block' => TRUE
- * pair which will prevent the datastream from being deleted if it particularly needed for
- * a certain function. Returning 'delete' => TRUE will cause the datastream to be put into
- * a deleted state.
- *
- * @param string $object_id
- *   ID of the object
- * @param string $datastream_id
- *   ID of the datastream
- *
- */
-function islandora_purge_datastream_submit($form, &$form_state) {
-  $object_id = $form_state['values']['pid'];
-  $datastream_id = $form_state['values']['dsid'];
-
-  if (!isset($datastream_id)) {
-    drupal_set_message(t('Cannot remove datastream, datastream id not set'));
-    return;
-  }
-
-  $object = islandora_object_load($object_id);
-
-  if (!isset($object)) {
-    drupal_set_message(t('Could not remove object, object not found'));
-    return;
-  }
-
-  //notify modules of pending deletion so we can update rels etc
-  $arr = module_invoke_all('islandora_pre_purge_datastream', $object[$datastream_id]);
-
-  if (isset($arr['block']) && $arr['block']) {
-    drupal_set_message(t('Purging of the %d datastream was blocked', array('%d' => $datastream_id)), 'warning');
-    return;
-  }
-  if (isset($arr['delete']) && $arr['delete']) {
-    try {
-      $object[$datastream_id]->state = 'D';
-    } catch (Exception $e) {
-      drupal_set_message(t('Error deleting %s datastream from Islandora object %o %e', array('%s' => $datastream_id, '%o' => $object->id, '%e' => $e)), 'error');
-      return;
-    }
-  }
-  else {
-    try {
-      $object->purgeDatastream($datastream_id);
-    } catch (Exception $e) {
-      drupal_set_message(t('Error purging %s datastream from Islandora object %o %e', array('%s' => $datastream_id, '%o' => $object_id, '%e' => $e)), 'error');
-      return;
-    }
-  }
-  //notify modules post deletion
-  module_invoke_all('islandora_post_purge_datastream', $object, $datastream_id); 
-  drupal_set_message(t('%d datastream sucessfully purged from Islandora object %o', array('%d' => $datastream_id, '%o' => $object->label)));
-  drupal_goto('islandora/object/' . $object->id);
-}

includes/solution_packs.inc

@@ -0,0 +1,668 @@
+<?php
+
+/**
+ * @file
+ * Admin and callback functions for solution pack management.
+ */
+
+/**
+ * Solution pack admin page callback.
+ *
+ * @return string
+ *   The html repersentation of all solution pack forms for required objects.
+ */
+function islandora_solution_packs_admin() {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  if (!islandora_describe_repository()) {
+    islandora_display_repository_inaccessible_message();
+    return '';
+  }
+
+  $connection = islandora_get_tuque_connection();
+  drupal_add_css(drupal_get_path('module', 'islandora') . '/css/islandora.admin.css');
+  $output = '';
+  $enabled_solution_packs = module_invoke_all('islandora_required_objects', $connection);
+  foreach ($enabled_solution_packs as $solution_pack_module => $solution_pack_info) {
+    // @todo We should probably get the title of the solution pack from the
+    // systems table for consistency in the interface.
+    $solution_pack_name = $solution_pack_info['title'];
+    $objects = array_filter($solution_pack_info['objects']);
+    $form = drupal_get_form('islandora_solution_pack_form_' . $solution_pack_module, $solution_pack_module, $solution_pack_name, $objects);
+    $output .= drupal_render($form);
+  }
+  return $output;
+}
+
+/**
+ * A solution pack form for the given module.
+ *
+ * It lists all the given objects and their status, allowing the user to
+ * re-ingest them.
+ *
+ * @param array $form
+ *   The Drupal form definition.
+ * @param array $form_state
+ *   The Drupal form state.
+ * @param string $solution_pack_module
+ *   The module which requires the given objects.
+ * @param string $solution_pack_name
+ *   The name of the solution pack to display to the users.
+ * @param array $objects
+ *   An array of NewFedoraObjects which describe the state in which objects
+ *   should exist.
+ *
+ * @return array
+ *   The Drupal form definition.
+ */
+function islandora_solution_pack_form(array $form, array &$form_state, $solution_pack_module, $solution_pack_name, $objects = array()) {
+  // The order is important in terms of severity of the status, where higher
+  // index indicates the status is more serious, this will be used to determine
+  // what messages get displayed to the user.
+  $ok_image = theme_image(array('path' => 'misc/watchdog-ok.png', 'attributes' => array()));
+  $warning_image = theme_image(array('path' => 'misc/watchdog-warning.png', 'attributes' => array()));
+  $status_info = array(
+    'up_to_date' => array(
+      'solution_pack' => t('All required objects are installed and up-to-date.'),
+      'image' => $ok_image,
+      'button' => t("Force reinstall objects"),
+    ),
+    'modified_datastream' => array(
+      'solution_pack' => t('Some objects must be reinstalled. See objects list for details.'),
+      'image' => $warning_image,
+      'button' => t("Reinstall objects"),
+    ),
+    'out_of_date' => array(
+      'solution_pack' => t('Some objects must be reinstalled. See objects list for details.'),
+      'image' => $warning_image,
+      'button' => t("Reinstall objects"),
+    ),
+    'missing_datastream' => array(
+      'solution_pack' => t('Some objects must be reinstalled. See objects list for details.'),
+      'image' => $warning_image,
+      'button' => t("Reinstall objects"),
+    ),
+    'missing' => array(
+      'solution_pack' => t('Some objects are missing and must be installed. See objects list for details.'),
+      'image' => $warning_image,
+      'button' => t("Install objects"),
+    ),
+  );
+  $status_severities = array_keys($status_info);
+  $solution_pack_status_severity = array_search('up_to_date', $status_severities);
+  $table_rows = array();
+  foreach ($objects as $object) {
+    $object_status = islandora_check_object_status($object);
+    $object_status_info = $status_info[$object_status['status']];
+    $object_status_severity = array_search($object_status['status'], $status_severities);
+    // The solution pack status severity will be the highest severity of
+    // the objects.
+    $solution_pack_status_severity = max($solution_pack_status_severity, $object_status_severity);
+    $exists = $object_status['status'] != 'missing';
+    $label = $exists ? l($object->label, "islandora/object/{$object->id}") : $object->label;
+    $status_msg = "{$object_status_info['image']}&nbsp{$object_status['status_friendly']}";
+    $table_rows[] = array($label, $object->id, $status_msg);
+  }
+  $solution_pack_status = $status_severities[$solution_pack_status_severity];
+  $solution_pack_status_info = $status_info[$solution_pack_status];
+  return array(
+    'solution_pack' => array(
+      '#type' => 'fieldset',
+      '#collapsible' => FALSE,
+      '#collapsed' => FALSE,
+      '#attributes' => array('class' => array('islandora-solution-pack-fieldset')),
+      'solution_pack_module' => array(
+        '#type' => 'value',
+        '#value' => $solution_pack_module,
+      ),
+      'solution_pack_name' => array(
+        '#type' => 'value',
+        '#value' => $solution_pack_name,
+      ),
+      'objects' => array(
+        '#type' => 'value',
+        '#value' => $objects,
+      ),
+      'solution_pack_label' => array(
+        '#markup' => $solution_pack_name,
+        '#prefix' => '<h3>',
+        '#suffix' => '</h3>',
+      ),
+      'install_status' => array(
+        '#markup' => t('<strong>Object status:</strong> !image !status', array(
+                     '!image' => $solution_pack_status_info['image'],
+                     '!status' => $solution_pack_status_info['solution_pack'],
+                   )),
+        '#prefix' => '<div class="islandora-solution-pack-install-status">',
+        '#suffix' => '</div>',
+      ),
+      'table' => array(
+        '#type' => 'item',
+        '#markup' => theme('table', array(
+                     'header' => array(t('Label'), t('PID'), t('Status')),
+                     'rows' => $table_rows)),
+      ),
+      'submit' => array(
+        '#type' => 'submit',
+        '#name' => $solution_pack_module,
+        '#value' => $solution_pack_status_info['button'],
+        '#attributes' => array('class' => array('islandora-solution-pack-submit')),
+      ),
+    ),
+  );
+}
+
+/**
+ * Submit handler for solution pack form.
+ *
+ * @param array $form
+ *   The form submitted.
+ * @param array $form_state
+ *   The state of the form submited.
+ */
+function islandora_solution_pack_form_submit(array $form, array &$form_state) {
+  $solution_pack_module = $form_state['values']['solution_pack_module'];
+  $objects = $form_state['values']['objects'];
+  $batch = array(
+    'title' => t('Installing / Updating solution pack objects'),
+    'file' => drupal_get_path('module', 'islandora') . '/includes/solution_packs.inc',
+    'operations' => array(),
+  );
+  foreach ($objects as $object) {
+    $batch['operations'][] = array('islandora_solution_pack_batch_operation_reingest_object', array($object));
+  }
+  batch_set($batch);
+  // Hook to let solution pack objects be modified.
+  // Not using module_invoke so solution packs can be expanded by other modules.
+  // @todo shouldn't we send the object list along as well?
+  module_invoke_all('islandora_postprocess_solution_pack', $solution_pack_module);
+}
+
+/**
+ * Batch operation to ingest/reingest required object(s).
+ *
+ * @param NewFedoraObject $object
+ *   The object to ingest/reingest.
+ * @param array $context
+ *   The context of this batch operation.
+ */
+function islandora_solution_pack_batch_operation_reingest_object(NewFedoraObject $object, array &$context) {
+  $deleted = FALSE;
+  $existing_object = islandora_object_load($object->id);
+  if ($existing_object) {
+    $deleted = islandora_delete_object($existing_object);
+    $purged = $deleted && $existing_object == NULL;
+    if (!$purged) {
+      $object_link = l($existing_object->label, "islandora/object/{$existing_object->id}");
+      drupal_set_message(t('Failed to purge existing object !object_link.', array(
+            '!object_link' => $object_link,
+          )), 'error');
+      // Failed to purge don't attempt to ingest.
+      return;
+    }
+  }
+  // Object was deleted or did not exist.
+  $pid = $object->id;
+  $label = $object->label;
+  $action = $deleted ? 'reinstalled' : 'installed';
+  $object_link = l($label, "islandora/object/{$pid}");
+  $object = islandora_add_object($object);
+  $msg = $object ? "Successfully $action !object_link." : "Failed to $action @label identified by @pid.";
+  $status = $object ? 'status' : 'error';
+  drupal_set_message(t($msg, array(
+        '@pid' => $pid,
+        '@label' => $label,
+        '!object_link' => $object_link,
+      )), $status);
+}
+
+/**
+ * Install the given solution pack.
+ *
+ * This is to be called from the solution pack's hook_install() and
+ * hook_uninstall() functions.
+ *
+ * It provides a convient way to have a solution pack's required objects
+ * ingested at install time.
+ *
+ * @param string $module
+ *   The name of the module that is calling this function in its
+ *   install/unistall hooks.
+ * @param string $op
+ *   The operation to perform, either install or uninstall.
+ *
+ * @todo Implement hook_modules_installed/hook_modules_uninstalled instead of
+ *   calling this function directly.
+ * @todo Remove the second parameter and have two seperate functions.
+ */
+function islandora_install_solution_pack($module, $op = 'install') {
+  if ($op == 'uninstall') {
+    islandora_uninstall_solution_pack($module);
+    return;
+  }
+  module_load_include('module', 'islandora', 'islandora');
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  module_load_include('module', $module, $module);
+  $info_file = drupal_get_path('module', $module) . "/{$module}.info";
+  $info_array = drupal_parse_info_file($info_file);
+  $module_name = $info_array['name'];
+  $admin_link = l(t('Solution Pack admin'), 'admin/islandora/solution_packs');
+  $config_link = l(t('Islandora configuration'), 'admin/islandora/configure');
+  if (!islandora_describe_repository()) {
+    $msg = '@module: Did not install any objects. Could not connect to the ';
+    $msg .= 'repository. Please check the settings on the !config_link page ';
+    $msg .= 'and install the required objects manually on the !admin_link page.';
+    drupal_set_message(st($msg, array(
+          '@module' => $module_name,
+          '!config_link' => $config_link,
+          '@admin_link' => $admin_link,
+        )), 'error');
+    return;
+  }
+  $connection = islandora_get_tuque_connection();
+  $required_objects = module_invoke($module, 'islandora_required_objects', $connection);
+  $objects = $required_objects[$module]['objects'];
+  $status_messages = array(
+    'up_to_date' => 'The object already exists and is up-to-date',
+    'missing_datastream' => 'The object already exists but is missing a datastream. Please reinstall the object on the !admin_link page',
+    'out_of_date' => 'The object already exists but is out-of-date. Please update the object on the !admin_link page',
+    'modified_datastream' => 'The object already exists but datastreams are modified. Please reinstall the object on the !admin_link page',
+  );
+  foreach ($objects as $object) {
+    $query = $connection->api->a->findObjects('query', 'pid=' . $object->id);
+    $already_exists = !empty($query['results']);
+    $label = $object->label;
+    $object_link = l($label, "islandora/object/{$object->id}");
+    if ($already_exists) {
+      $object_status = islandora_check_object_status($object);
+      $status_msg = $status_messages[$object_status['status']];
+      drupal_set_message(st("@module: Did not install !object_link. $status_msg.", array(
+            '@module' => $module_name,
+            '!object_link' => $object_link,
+            '!admin_link' => $admin_link,
+          )), 'warning');
+    }
+    else {
+      $object = islandora_add_object($object);
+      if ($object) {
+        drupal_set_message(t('@module: Successfully installed. !object_link.', array(
+            '@module' => $module_name,
+            '!object_link' => $object_link,
+          )), 'status');
+      }
+      else {
+        drupal_set_message(t('@module: Failed to install. @label.', array(
+              '@module' => $module_name,
+              '@label' => $label,
+            )), 'warning');
+      }
+    }
+  }
+}
+
+/**
+ * Uninstalls the given solution pack.
+ *
+ * @param string $module
+ *   The solution pack to uninstall.
+ *
+ * @todo Implement hook_modules_uninstalled instead of calling this function
+ *    directly for each solution pack.
+ */
+function islandora_uninstall_solution_pack($module) {
+  module_load_include('module', 'islandora', 'islandora');
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  module_load_include('module', $module, $module);
+  $config_link = l(t('Islandora configuration'), 'admin/islandora/configure');
+  $info_file = drupal_get_path('module', $module) . "/{$module}.info";
+  $info_array = drupal_parse_info_file($info_file);
+  $module_name = $info_array['name'];
+  if (!islandora_describe_repository()) {
+    $msg = '@module: Did not uninstall any objects. Could not connect to the ';
+    $msg .= 'repository. Please check the settings on the !config_link page ';
+    $msg .= 'and uninstall the required objects manually if necessary.';
+    drupal_set_message(st($msg, array(
+          '@module' => $module_name,
+          '!config_link' => $config_link,
+        )), 'error');
+    return;
+  }
+  $connection = islandora_get_tuque_connection();
+  $required_objects = module_invoke($module, 'islandora_required_objects', $connection);
+  $objects = $required_objects[$module]['objects'];
+  $filter = function($o) use($connection) {
+    $param = "pid={$o->id}";
+    $query = $connection->api->a->findObjects('query', $param);
+    return !empty($query['results']);
+  };
+  $existing_objects = array_filter($objects, $filter);
+  foreach ($existing_objects as $object) {
+    $msg = '@module: Did not remove !object_link. It may be used by other sites.';
+    $object_link = l($object->label, "islandora/object/{$object->id}");
+    drupal_set_message(st($msg, array(
+          '!object_link' => $object_link,
+          '@module' => $module_name,
+        )), 'warning');
+  }
+}
+
+/**
+ * Function to check the status of an object against an object model array.
+ *
+ * @param NewFedoraObject $object_definition
+ *   A new fedora object that defines what the object should contain.
+ *
+ * @return string
+ *   Returns one of the following values:
+ *   up_to_date, missing, missing_datastream or out_of_date
+ *   You can perform an appropriate action based on this value.
+ *
+ * @see islandora_solution_pack_form()
+ * @see islandora_install_solution_pack()
+ */
+function islandora_check_object_status(NewFedoraObject $object_definition) {
+  $existing_object = islandora_object_load($object_definition->id);
+  if (!$existing_object) {
+    return array('status' => 'missing', 'status_friendly' => t('Missing'));
+  }
+
+  $existing_datastreams = array_keys(iterator_to_array($existing_object));
+  $expected_datastreams = array_keys(iterator_to_array($object_definition));
+  $datastream_diff = array_diff($expected_datastreams, $existing_datastreams);
+  if (!empty($datastream_diff)) {
+    $status_friendly = format_plural(count($datastream_diff), 'Missing Datastream: %dsids.', 'Missing Datastreams: %dsids.', array('%dsids' => implode(', ', $datastream_diff)));
+    return array(
+      'status' => 'missing_datastream',
+      'status_friendly' => $status_friendly,
+      'data' => $datastream_diff,
+    );
+  }
+
+  $is_xml_datastream = function($ds) {
+    return $ds->mimetype == 'text/xml';
+  };
+  $xml_datastreams = array_filter(iterator_to_array($object_definition), $is_xml_datastream);
+  $out_of_date_datastreams = array();
+  foreach ($xml_datastreams as $ds) {
+    $installed_version = islandora_get_islandora_datastream_version($existing_object, $ds->id);
+    $available_version = islandora_get_islandora_datastream_version($object_definition, $ds->id);
+    if ($available_version > $installed_version) {
+      $out_of_date_datastreams[] = $ds->id;
+    }
+  }
+
+  if (count($out_of_date_datastreams)) {
+    $status_friendly = format_plural(count($out_of_date_datastreams), 'Datastream out of date: %dsids.', 'Datastreams out of date: %dsids.', array('%dsids' => implode(', ', $out_of_date_datastreams)));
+    return array(
+      'status' => 'out_of_date',
+      'status_friendly' => $status_friendly,
+      'data' => $out_of_date_datastreams,
+    );
+  }
+
+  // This is a pretty heavy function, but I'm not sure a better way. If we have
+  // performance trouble, we should maybe remove this.
+  $modified_datastreams = array();
+  foreach ($object_definition as $ds) {
+    if ($ds->mimetype == 'text/xml'
+      || $ds->mimetype == 'application/rdf+xml'
+      || $ds->mimetype == 'application/xml') {
+      // If the datastream is XML we use the domdocument C14N cannonicalization
+      // function to test if they are equal, because the strings likely won't
+      // be equal as Fedora does some XML mangling. In order for C14N to work
+      // we need to replace the info:fedora namespace, as C14N hates it.
+      // C14N also doesn't normalize whitespace at the end of lines and Fedora
+      // may add some whitespace on some lines.
+      $object_definition_dom = new DOMDocument();
+      $object_definition_dom->preserveWhiteSpace = FALSE;
+      $object_definition_dom->loadXML(str_replace('info:', 'http://', $ds->content));
+      $object_actual_dom = new DOMDocument();
+      $object_actual_dom->preserveWhiteSpace = FALSE;
+      $object_actual_dom->loadXML(str_replace('info:', 'http://', $existing_object[$ds->id]->content));
+
+      // Fedora changes the xml structure so we need to cannonize it.
+      if ($object_actual_dom->C14N() != $object_definition_dom->C14N()) {
+        $modified_datastreams[] = $ds->id;
+      }
+    }
+    else {
+      $object_definition_hash = md5($ds->content);
+      $object_actual_hash = md5($existing_object[$ds->id]->content);
+      if ($object_definition_hash != $object_actual_hash) {
+        $modified_datastreams[] = $ds->id;;
+      }
+    }
+  }
+  if (count($modified_datastreams)) {
+    $status_friendly = format_plural(count($modified_datastreams), 'Modified Datastream: %dsids.', 'Modified Datastreams: %dsids.', array('%dsids' => implode(', ', $modified_datastreams)));
+    return array(
+      'status' => 'modified_datastream',
+      'data' => $modified_datastreams,
+      'status_friendly' => $status_friendly,
+    );
+  }
+
+  // If not anything else we can assume its up to date.
+  return array('status' => 'up_to_date', 'status_friendly' => t('Up-to-date'));
+}
+
+/**
+ * @defgroup viewer-functions
+ * @{
+ * Helper functions to include viewers for solution packs.
+ */
+
+/**
+ * A form construct to create a viewer selection table.
+ *
+ * The list of selectable viewers is limited by the $mimetype and the $model
+ * parameters. When neither are given all defined viewers are listed. If only
+ * $mimetype is given only viewers that support that mimetype will be listed,
+ * the same goes for the $model parameter. If both are given, than any viewer
+ * that supports either the give $mimetype or $model will be listed.
+ *
+ * @param string $variable_id
+ *   The ID of the Drupal variable to save the viewer settings in
+ * @param string $mimetype
+ *   The table will be populated with viewers supporting this mimetype
+ * @param string $model
+ *   The table will be populated with viewers supporting this content model
+ *
+ * @return array
+ *   A form api array which defines a themed table to select a viewer.
+ */
+function islandora_viewers_form($variable_id = NULL, $mimetype = NULL, $model = NULL) {
+  $form = array();
+  $viewers = islandora_get_viewers($mimetype, $model);
+  if (!empty($viewers)) {
+    $no_viewer = array();
+    $no_viewer['none'] = array(
+      'label' => t('None'),
+      'description' => t("Don't use a viewer for this solution pack."),
+    );
+    $viewers = array_merge_recursive($no_viewer, $viewers);
+  }
+  $viewers_config = variable_get($variable_id, array());
+  $form['viewers'] = array(
+    '#type' => 'fieldset',
+    '#title' => t('Viewers'),
+    '#collapsible' => FALSE,
+    '#collapsed' => FALSE,
+  );
+
+  if (!empty($viewers)) {
+    $form['viewers'][$variable_id] = array(
+      '#type' => 'item',
+      '#title' => t('Select a viewer'),
+      '#description' => t('Preferred viewer for your solution pack. These may be provided by third-party modules.'),
+      '#tree' => TRUE,
+      '#theme' => 'islandora_viewers_table',
+    );
+
+    foreach ($viewers as $name => $profile) {
+      $options[$name] = '';
+      $form['viewers'][$variable_id]['name'][$name] = array(
+        '#type' => 'hidden',
+        '#value' => $name,
+      );
+      $form['viewers'][$variable_id]['label'][$name] = array(
+        '#type' => 'item',
+        '#markup' => $profile['label'],
+      );
+      $form['viewers'][$variable_id]['description'][$name] = array(
+        '#type' => 'item',
+        '#markup' => $profile['description'],
+      );
+      $form['viewers'][$variable_id]['configuration'][$name] = array(
+        '#type' => 'item',
+        '#markup' => (isset($profile['configuration']) AND $profile['configuration'] != '') ? l(t('configure'), $profile['configuration']) : '',
+      );
+    }
+    $form['viewers'][$variable_id]['default'] = array(
+      '#type' => 'radios',
+      '#options' => isset($options) ? $options : array(),
+      '#default_value' => !empty($viewers_config) ? $viewers_config['default'] : 'none',
+    );
+  }
+  else {
+    $form['viewers'][$variable_id . '_no_viewers'] = array(
+      '#markup' => t('No viewers detected.'),
+    );
+    variable_del($variable_id);
+  }
+  return $form;
+}
+
+/**
+ * Returns all defined viewers.
+ *
+ * The list of selectable viewers is limited by the $mimetype and the
+ * $content_model parameters. When neither are given all defined viewers are
+ * listed. If only $mimetype is given only viewers that support that mimetype
+ * will be listed, the same goes for the $content_model parameter. If both are
+ * given, than any viewer that supports either the give $mimetype or $model will
+ * be listed.
+ *
+ * @param string $mimetype
+ *   Specify a mimetype to return only viewers that support this certain
+ *   mimetype.
+ * @param string $content_model
+ *   Specify a content model to return only viewers that support the content
+ *   model.
+ *
+ * @return array
+ *   Viewer definitions, or FALSE if none are found.
+ */
+function islandora_get_viewers($mimetype = NULL, $content_model = NULL) {
+  $viewers = array();
+  $defined_viewers = module_invoke_all('islandora_viewer_info');
+  // Filter viewers by MIME type.
+  foreach ($defined_viewers as $key => $value) {
+    $value['mimetype'] = isset($value['mimetype']) ? $value['mimetype'] : array();
+    $value['model'] = isset($value['model']) ? $value['model'] : array();
+    if (in_array($mimetype, $value['mimetype']) OR in_array($content_model, $value['model'])) {
+      $viewers[$key] = $value;
+    }
+  }
+  if (!empty($viewers)) {
+    return $viewers;
+  }
+  return FALSE;
+}
+
+/**
+ * Implements theme_hook().
+ */
+function theme_islandora_viewers_table($variables) {
+  $form = $variables['form'];
+  $rows = array();
+  foreach ($form['name'] as $key => $element) {
+    if (is_array($element) && element_child($key)) {
+      $row = array();
+      $row[] = array('data' => drupal_render($form['default'][$key]));
+      $row[] = array('data' => drupal_render($form['label'][$key]));
+      $row[] = array('data' => drupal_render($form['description'][$key]));
+      $row[] = array('data' => drupal_render($form['configuration'][$key]));
+      $rows[] = array('data' => $row);
+    }
+  }
+  $header = array();
+  $header[] = array('data' => t('Default'));
+  $header[] = array('data' => t('Label'));
+  $header[] = array('data' => t('Description'));
+  $header[] = array('data' => t('Configuration'));
+
+  $output = '';
+  $output .= theme('table', array(
+               'header' => $header,
+               'rows' => $rows,
+               'attributes' => array('id' => 'islandora-viewers-table'),
+             ));
+  $output .= drupal_render_children($form);
+  return $output;
+}
+
+/**
+ * Gather information and return a rendered viewer.
+ *
+ * @param array/string $params
+ *   Array or string with data the module needs in order to render a full viewer
+ * @param string $variable_id
+ *   The id of the Drupal variable the viewer settings are saved in
+ * @param FedoraObject $fedora_object
+ *   The tuque object representing the fedora object being displayed
+ *
+ * @return string
+ *   The callback to the viewer module. Returns a rendered viewer. Returns FALSE
+ *   if no viewer is set.
+ */
+function islandora_get_viewer($params = NULL, $variable_id = NULL, $fedora_object = NULL) {
+  $settings = variable_get($variable_id, array());
+  if (!empty($settings) AND $settings['default'] !== 'none') {
+    $viewer_id = islandora_get_viewer_id($variable_id);
+    if ($viewer_id AND $params !== NULL) {
+      $callback = islandora_get_viewer_callback($viewer_id);
+      return $callback($params, $fedora_object);
+    }
+  }
+  return FALSE;
+}
+
+/**
+ * Get id of the enabled viewer.
+ *
+ * @param string $variable_id
+ *   The ID of the Drupal variable the viewer settings are saved in
+ *
+ * @return string
+ *   The enabled viewer id. Returns FALSE if no viewer config is set.
+ */
+function islandora_get_viewer_id($variable_id) {
+  $viewers_config = variable_get($variable_id, array());
+  if (!empty($viewers_config)) {
+    return $viewers_config['default'];
+  }
+  return FALSE;
+}
+
+/**
+ * Get callback function for a viewer.
+ *
+ * @param string $viewer_id
+ *   The ID of a viewer.
+ *
+ * @return string
+ *   The callback function as a string as defined by the viewer.
+ */
+function islandora_get_viewer_callback($viewer_id = NULL) {
+  if ($viewer_id !== NULL) {
+    $viewers = module_invoke_all('islandora_viewer_info');
+    if (isset($viewers[$viewer_id]['callback'])) {
+      return $viewers[$viewer_id]['callback'];
+    }
+  }
+  return FALSE;
+}
+
+/**
+ * @} End of "defgroup viewer-functions".
+ */

includes/tuque.inc

@@ -1,8 +1,13 @@
 <?php
 
+/**
+ * @file
+ * This file contains a class to include the Tuque php library.
+ */
+
 $islandora_module_path = drupal_get_path('module', 'islandora');
 
-//do this until we expost these in a module or library
+// Do this until we expose these in a module or library.
 @include_once 'sites/all/libraries/tuque/Datastream.php';
 @include_once 'sites/all/libraries/tuque/FedoraApi.php';
 @include_once 'sites/all/libraries/tuque/FedoraApiSerializer.php';
@@ -53,15 +58,24 @@ class IslandoraTuque {
    */
   public $repository = NULL;
 
-  function __construct($user = NULL, $url = NULL) {
-    if(!isset($user)) {
+  /**
+   * Constructor.
+   *
+   * @param array $user
+   *   A Drupal user.
+   * @param string $url
+   *   The url to the fedora instance.
+   */
+  public function __construct($user = NULL, $url = NULL) {
+    if (!isset($user)) {
       global $user;
     }
 
-    if(!isset($user) || $user->uid == 0){
+    if ($user->uid == 0) {
       $user_string = 'anonymous';
       $pass_string = 'anonymous';
-    } else {
+    }
+    else {
       $user_string = $user->name;
       $pass_string = $user->pass;
     }
@@ -70,24 +84,32 @@ class IslandoraTuque {
       $url = variable_get('islandora_base_url', 'http://localhost:8080/fedora');
     }
 
-    if(self::exists()) {
-      $this->connection = new RepositoryConnection($url, $user_string, $pass_string);
+    if (self::exists()) {
+      $this->connection = new IslandoraRepositoryConnection($url, $user_string, $pass_string);
       $this->connection->reuseConnection = TRUE;
-      $this->api = new FedoraApi($this->connection);
-      $this->cache = new SimpleCache();
-      $this->repository = new FedoraRepository($this->api, $this->cache);
+      $this->api = new IslandoraFedoraApi($this->connection);
+      $this->cache = new IslandoraSimpleCache();
+      $this->repository = new IslandoraFedoraRepository($this->api, $this->cache);
     }
   }
 
-  static function exists() {
+  /**
+   * Checks if the Connection class exists.
+   *
+   * @returns bool
+   *   TRUE if the Connection class exists FALSE otherwise.
+   */
+  public static function exists() {
     return class_exists('RepositoryConnection');
   }
 
-  static function getError() {
+  /**
+   * Displays and error for use when Tuque is not installed.
+   */
+  public static function getError() {
     $islandora_doc_link = l(t('Islandora documentation'), 'https://wiki.duraspace.org/display/ISLANDORA/Islandora');
     $tuque_link = l(t('Tuque Fedora API'), 'http://github.com/islandora/tuque');
-    $message = t('Islandora requires the !tuque_url. Please install in /sites/all/libraries/tuque before continuing. See the !islandora_url.', array( '!tuque_url' => $tuque_link, '!islandora_url' => $islandora_doc_link));
-    drupal_set_message($message, 'error', FALSE);
+    $message = t('Islandora requires the !tuque_url. Please install in /sites/all/libraries/tuque before continuing. See the !islandora_url.', array('!tuque_url' => $tuque_link, '!islandora_url' => $islandora_doc_link));
+    drupal_set_message(filter_xss($message), 'error', FALSE);
   }
 }
-

includes/tuque_wrapper.inc

@@ -0,0 +1,360 @@
+<?php
+
+/**
+ * @file
+ * Wrapper around the tuque library, allows for autoloading of Islandora Tuque
+ * Objects.
+ *
+ * @todo Overload functions and apply pre/post hooks.
+ */
+
+$islandora_module_path = drupal_get_path('module', 'islandora');
+
+// @todo this until we expost these in a module or library
+@include_once 'sites/all/libraries/tuque/Datastream.php';
+@include_once 'sites/all/libraries/tuque/FedoraApi.php';
+@include_once 'sites/all/libraries/tuque/FedoraApiSerializer.php';
+@include_once 'sites/all/libraries/tuque/Object.php';
+@include_once 'sites/all/libraries/tuque/RepositoryConnection.php';
+@include_once 'sites/all/libraries/tuque/Cache.php';
+@include_once 'sites/all/libraries/tuque/RepositoryException.php';
+@include_once 'sites/all/libraries/tuque/Repository.php';
+@include_once 'sites/all/libraries/tuque/FedoraRelationships.php';
+
+@include_once "$islandora_module_path/libraries/tuque/Datastream.php";
+@include_once "$islandora_module_path/libraries/tuque/FedoraApi.php";
+@include_once "$islandora_module_path/libraries/tuque/FedoraApiSerializer.php";
+@include_once "$islandora_module_path/libraries/tuque/Object.php";
+@include_once "$islandora_module_path/libraries/tuque/RepositoryConnection.php";
+@include_once "$islandora_module_path/libraries/tuque/Cache.php";
+@include_once "$islandora_module_path/libraries/tuque/RepositoryException.php";
+@include_once "$islandora_module_path/libraries/tuque/Repository.php";
+@include_once "$islandora_module_path/libraries/tuque/FedoraRelationships.php";
+
+/**
+ * Allow modules to alter an object before a mutable event occurs.
+ */
+function islandora_alter_object(AbstractFedoraObject $object, array &$context) {
+  $types = array('islandora_object');
+  foreach ($object->models as $model) {
+    $types[] = "{$model}_islandora_object";
+  }
+  drupal_alter($types, $object, $context);
+}
+
+/**
+ * Allow modules to alter a datastream before a mutable event occurs.
+ */
+function islandora_alter_datastream(AbstractFedoraObject $object, AbstractDatastream $datastream, array &$context) {
+  $types = array('islandora_datastream');
+  foreach ($object->models as $model) {
+    $types[] = "{$model}_{$datastream->id}_islandora_datastream";
+  }
+  drupal_alter($types, $object, $datastream, $context);
+}
+
+/**
+ * Constructs a list of hooks from the given paramenters and invokes them.
+ */
+function islandora_invoke_object_hooks($hook, array $models) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  return islandora_invoke_hook_list($hook, $models, array_slice(func_get_args(), 2));
+}
+
+/**
+ * Constructs a list of hooks from the given paramenters and invokes them.
+ */
+function islandora_invoke_datastream_hooks($hook, array $models, $dsid) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $refinements = array();
+  foreach ($models as $model) {
+    $refinements[] = "{$model}_{$dsid}";
+  }
+  return islandora_invoke_hook_list($hook, $refinements, array_slice(func_get_args(), 3));
+}
+
+class IslandoraFedoraRepository extends FedoraRepository {
+  protected $queryClass = 'IslandoraRepositoryQuery';
+  protected $newObjectClass = 'IslandoraNewFedoraObject';
+  protected $objectClass = 'IslandoraFedoraObject';
+
+  /**
+   * Ingest the given object.
+   *
+   * @see FedoraRepository::ingestObject()
+   */
+  public function ingestObject(NewFedoraObject &$object) {
+    $context = array(
+      'action' => 'ingest',
+      'block' => FALSE,
+    );
+    islandora_alter_object($object, $context);
+    try {
+      if ($context['block']) {
+        throw new Exception('Ingest Object was blocked.');
+      }
+      $ret = parent::ingestObject($object);
+      islandora_invoke_object_hooks(ISLANDORA_OBJECT_INGESTED_HOOK, $object->models, $object);
+      // Call the ingested datastream hooks for NewFedoraObject's after the
+      // object had been ingested.
+      foreach ($object as $dsid => $datastream) {
+        islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_INGESTED_HOOK, $object->models, $dsid, $object, $datastream);
+      }
+      return $ret;
+    }
+    catch (Exception $e) {
+      watchdog('islandora', 'Failed to ingest object: @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $object->id,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+}
+
+class IslandoraRepositoryQuery extends RepositoryQuery {}
+
+class IslandoraNewFedoraObject extends NewFedoraObject {
+  protected $newFedoraDatastreamClass = 'IslandoraNewFedoraDatastream';
+  protected $fedoraDatastreamClass = 'IslandoraFedoraDatastream';
+  protected $fedoraRelsExtClass = 'IslandoraFedoraRelsExt';
+}
+
+class IslandoraFedoraObject extends FedoraObject {
+  protected $newFedoraDatastreamClass = 'IslandoraNewFedoraDatastream';
+  protected $fedoraDatastreamClass = 'IslandoraFedoraDatastream';
+  protected $fedoraRelsExtClass = 'IslandoraFedoraRelsExt';
+
+  /**
+   * Ingest the given datastream.
+   *
+   * @see FedoraObject::ingestDatastream()
+   */
+  public function ingestDatastream(&$datastream) {
+    $object = $datastream->parent;
+    $context = array(
+      'action' => 'ingest',
+      'block' => FALSE,
+    );
+    islandora_alter_datastream($object, $datastream, $context);
+    try {
+      if ($context['block']) {
+        throw new Exception('Ingest Datastream was blocked.');
+      }
+      $ret = parent::ingestDatastream($datastream);
+      islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_INGESTED_HOOK, $object->models, $datastream->id, $object, $datastream);
+      return $ret;
+    }
+    catch (Exception $e) {
+      watchdog('islandora', 'Failed to ingest object: @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $object->id,
+          '@dsid' => $datastream->id,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+}
+
+class IslandoraRepositoryConnection extends RepositoryConnection {}
+
+class IslandoraFedoraApi extends FedoraApi {
+
+  /**
+   * Instantiate a IslandoraFedoraApi object.
+   *
+   * @see FedoraApi::__construct()
+   */
+  public function __construct(IslandoraRepositoryConnection $connection, FedoraApiSerializer $serializer = NULL) {
+    if (!$serializer) {
+      $serializer = new FedoraApiSerializer();
+    }
+    $this->a = new FedoraApiA($connection, $serializer);
+    $this->m = new IslandoraFedoraApiM($connection, $serializer);
+    $this->connection = $connection;
+  }
+}
+
+class IslandoraFedoraApiM extends FedoraApiM {
+
+  /**
+   * Update a datastream.
+   *
+   * Either changing its metadata, updaing the datastream contents or both.
+   *
+   * @throws Exception
+   *   If the modify datastream request was block by some module.
+   *
+   * @see FedoraApiM::modifyDatastream
+   */
+  public function modifyDatastream($pid, $dsid, $params = array()) {
+    $object = islandora_object_load($pid);
+    $datastream = $object[$dsid];
+    $context = array(
+      'action' => 'modify',
+      'block' => FALSE,
+      'params' => $params,
+    );
+    islandora_alter_datastream($object, $datastream, $context);
+    try {
+      if ($context['block']) {
+        throw new Exception('Modify Datastream was blocked.');
+      }
+      $ret = parent::modifyDatastream($pid, $dsid, $params);
+      islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_MODIFIED_HOOK, $object->models, $dsid, $object, $datastream);
+      if (isset($params['dsState']) && $params['dsState'] == 'D') {
+        islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $object->models, $dsid, $object, $dsid);
+      }
+      return $ret;
+    }
+    catch(Exception $e) {
+      watchdog('islandora', 'Failed to modify datastream @dsid from @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $pid,
+          '@dsid' => $dsid,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+
+  /**
+   * Update Fedora Object parameters.
+   *
+   * @see FedoraApiM::modifyObject
+   */
+  public function modifyObject($pid, $params = NULL) {
+    $object = islandora_object_load($pid);
+    $context = array(
+      'action' => 'modify',
+      'block' => FALSE,
+      'params' => $params,
+    );
+    islandora_alter_object($object, $context);
+    try {
+      if ($context['block']) {
+        throw new Exception('Modify Object was blocked.');
+      }
+      $ret = parent::modifyObject($pid, $params);
+      islandora_invoke_object_hooks(ISLANDORA_OBJECT_MODIFIED_HOOK, $object->models, $object);
+      if (isset($params['state']) && $params['state'] == 'D') {
+        islandora_invoke_object_hooks(ISLANDORA_OBJECT_PURGED_HOOK, $object->models, $object->id);
+      }
+      return $ret;
+    }
+    catch(Exception $e) {
+      watchdog('islandora', 'Failed to modify object: @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $pid,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+
+  /**
+   * Purge a datastream from from Fedora.
+   *
+   * @see FedoraApiM::purgeDatastream
+   */
+  public function purgeDatastream($pid, $dsid, $params = array()) {
+    $object = islandora_object_load($pid);
+    $context = array(
+      'action' => 'purge',
+      'purge' => TRUE,
+      'delete' => FALSE,
+      'block' => FALSE,
+    );
+    islandora_alter_datastream($object, $object[$dsid], $context);
+    try {
+      $action = $context['block'] ? 'block' : FALSE;
+      $action = (!$action && $context['delete']) ? 'delete' : $action;
+      $action = !$action ? 'purge' : $action;
+      switch ($action) {
+        case 'block':
+          throw new Exception('Purge Datastream was blocked.');
+        break;
+
+        case 'delete':
+          $object[$dsid]->state = 'D';
+          return array();
+
+        default:
+          $ret = parent::purgeDatastream($pid, $dsid, $params);
+          islandora_invoke_datastream_hooks(ISLANDORA_DATASTREAM_PURGED_HOOK, $object->models, $dsid, $object, $dsid);
+          return $ret;
+      }
+    }
+    catch(Exception $e) {
+      watchdog('islandora', 'Failed to purge datastream @dsid from @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $pid,
+          '@dsid' => $dsid,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+
+  /**
+   * Purge an object.
+   *
+   * @see FedoraApiM::purgeObject
+   */
+  public function purgeObject($pid, $log_message = NULL) {
+    $object = islandora_object_load($pid);
+    $context = array(
+      'action' => 'purge',
+      'purge' => TRUE,
+      'delete' => FALSE,
+      'block' => FALSE,
+    );
+    islandora_alter_object($object, $context);
+    try {
+      $action = $context['block'] ? 'block' : FALSE;
+      $action = (!$action && $context['delete']) ? 'delete' : $action;
+      $action = !$action ? 'purge' : $action;
+      $models = $object->models;
+      switch ($action) {
+        case 'block':
+          throw new Exception('Purge object was blocked.');
+        break;
+
+        case 'delete':
+          $object->state = 'D';
+          return '';
+
+        default:
+          $ret = parent::purgeObject($pid, $log_message);
+          islandora_invoke_object_hooks(ISLANDORA_OBJECT_PURGED_HOOK, $models, $pid);
+          return $ret;
+      }
+    }
+    catch(Exception $e) {
+      watchdog('islandora', 'Failed to purge object @pid</br>code: @code<br/>message: @msg', array(
+          '@pid' => $pid,
+          '@code' => $e->getCode(),
+          '@msg' => $e->getMessage()), WATCHDOG_ERROR);
+      throw $e;
+    }
+  }
+
+}
+
+class IslandoraSimpleCache extends SimpleCache {}
+
+class IslandoraNewFedoraDatastream extends NewFedoraDatastream {
+  protected $fedoraRelsIntClass = 'IslandoraFedoraRelsInt';
+  protected $fedoraDatastreamVersionClass = 'IslandoraFedoraDatastreamVersion';
+}
+
+class IslandoraFedoraDatastream extends FedoraDatastream {
+  protected $fedoraRelsIntClass = 'IslandoraFedoraRelsInt';
+  protected $fedoraDatastreamVersionClass = 'IslandoraFedoraDatastreamVersion';
+}
+
+class IslandoraFedoraDatastreamVersion extends FedoraDatastreamVersion {
+  protected $fedoraRelsIntClass = 'IslandoraFedoraRelsInt';
+  protected $fedoraDatastreamVersionClass = 'IslandoraFedoraDatastreamVersion';
+}
+
+class IslandoraFedoraRelsExt extends FedoraRelsExt {}
+
+class IslandoraFedoraRelsInt extends FedoraRelsInt {}

includes/utilities.inc

@@ -1,13 +1,24 @@
 <?php
 
 /**
- * Convert bytes to human readable format
+ * @file
+ * Utility functions.
+ *
+ * @todo this file should be broken out into other files.
+ */
+
+/**
+ * Convert bytes to human readable format.
+ *
+ * XXX: Shouldn't Drupal's format_size() be preferred?
+ *
+ * @param int $bytes
+ *   Size in bytes to convert
  *
- * @param integer bytes Size in bytes to convert
  * @return string
+ *   Human readable size.
  */
-function islandora_convert_bytes_to_human_readable($bytes, $precision = 2)
-{
+function islandora_convert_bytes_to_human_readable($bytes, $precision = 2) {
   $kilobyte = 1024;
   $megabyte = $kilobyte * 1024;
   $gigabyte = $megabyte * 1024;
@@ -15,79 +26,88 @@ function islandora_convert_bytes_to_human_readable($bytes, $precision = 2)
 
   if (($bytes >= 0) && ($bytes < $kilobyte)) {
     return $bytes . ' B';
-
-    } elseif (($bytes >= $kilobyte) && ($bytes < $megabyte)) {
+  }
+  elseif (($bytes >= $kilobyte) && ($bytes < $megabyte)) {
     return round($bytes / $kilobyte, $precision) . ' KB';
-
-    } elseif (($bytes >= $megabyte) && ($bytes < $gigabyte)) {
+  }
+  elseif (($bytes >= $megabyte) && ($bytes < $gigabyte)) {
     return round($bytes / $megabyte, $precision) . ' MB';
-
-    } elseif (($bytes >= $gigabyte) && ($bytes < $terabyte)) {
+  }
+  elseif (($bytes >= $gigabyte) && ($bytes < $terabyte)) {
     return round($bytes / $gigabyte, $precision) . ' GB';
-
-    } elseif ($bytes >= $terabyte) {
+  }
+  elseif ($bytes >= $terabyte) {
     return round($bytes / $terabyte, $precision) . ' TB';
-    } else {
+  }
+  else {
     return $bytes . ' B';
   }
 }
 
+/**
+ * Creates a label for control group symbols.
+ */
 function islandora_control_group_to_human_readable($control_group) {
-  switch($control_group) {
+  switch ($control_group) {
     case 'M':
       return '<b>M</b>anaged';
+
     case 'X':
       return 'Inline <b>X</b>ML';
+
     case 'R':
       return '<b>R</b>edirect';
+
     case 'E':
       return '<b>E</b>xternally Referenced';
+
     default:
       return $control_group;
   }
 }
 
 /**
- * valid pid ??
- * @param type $pid
- * @return boolean
+ * Checks if the given pid is valid.
+ *
+ * @param string $pid
+ *   The object id to check.
+ *
+ * @return bool
+ *   TRUE if valid, FALSE otherwise.
  */
-function islandora_validate_pid($pid) {
-  $valid = FALSE;
-  if (strlen(trim($pid)) <= 64 && preg_match('/^([A-Za-z0-9]|-|\.)+:(([A-Za-z0-9])|-|\.|~|_|(%[0-9A-F]{2}))+$/', trim($pid))) {
-    $valid = TRUE;
-  }
-
-  return $valid;
+function islandora_is_valid_pid($pid) {
+  return drupal_strlen(trim($pid)) <= 64 && preg_match('/^([A-Za-z0-9]|-|\.)+:(([A-Za-z0-9])|-|\.|~|_|(%[0-9A-F]{2}))+$/', trim($pid));
 }
 
 /**
- * Valid Dsid ??
- * @param type $dsid
- * @return boolean
+ * Checks if the given datastream id is valid.
+ *
+ * @param string $dsid
+ *   The datastream id to check.
+ *
+ * @return bool
+ *   TRUE if valid, FALSE otherwise.
  */
-function islandora_validate_dsid($dsid) {
-  $valid = FALSE;
-  if (strlen(trim($dsid)) <= 64 && preg_match('/^[a-zA-Z0-9\_\-\.]+$/', trim($dsid))) {
-    $valid = TRUE;
-  }
-
-  return $valid;
+function islandora_is_valid_dsid($dsid) {
+  return drupal_strlen(trim($dsid)) <= 64 && preg_match('/^[a-zA-Z0-9\_\-\.]+$/', trim($dsid));
 }
 
-/* Helper function to describe a Fedora repository.
+/**
+ * Helper function to describe a Fedora repository.
  *
  * Can be used to check if Fedora is available.
  *
- * @param $url
- *   A url to a Fedora repository.
- * @return
+ * @param string $url
+ *   A url to a Fedora repository, if NULL the default is used.
+ *
+ * @return array
  *   Returns an array describing the repository. Returns FALSE if Fedora is down
  *   or if the url is incorrect.
  */
-function islandora_describe_repository($url) {
-  
-  $connection = new IslandoraTuque(NULL, $url);
+function islandora_describe_repository($url = NULL) {
+  $url = isset($url) ? $url : variable_get('islandora_base_url', 'http://localhost:8080/fedora');
+  $connection = islandora_get_tuque_connection();
+  if ($connection) {
     try {
       $info = $connection->api->a->describeRepository();
       return $info;
@@ -95,4 +115,465 @@ function islandora_describe_repository($url) {
     catch (RepositoryException $e) {
       return FALSE;
     }
+  }
+  return FALSE;
+}
+
+/**
+ * Build and invoke a list of hooks by combining the given hook and refinements.
+ *
+ * The given hook will be called as MODULE_HOOK, and for each hook refinement
+ * as MODULE_REFINEMENT_HOOK. Any additional arguments passed to this function
+ * will be passed as arguments to module_invoke_all().
+ *
+ * @see islandora_build_hook_list()
+ *
+ * @param string $hook
+ *   A hook to call.
+ * @param array $refinements
+ *   An array of strings, that will be escaped and concatinated with the given
+ *   hook. This will most likely be PIDs/DSIDs/Labels etc. We often refine our
+ *   hooks using an objects model.
+ * @param array $args
+ *   Any arguments to pass onto module_invoke_all().
+ *
+ * @return array
+ *   The merged results from all the hooks.
+ */
+function islandora_invoke_hook_list($hook, array $refinements, array $args) {
+  $return = array();
+  foreach (islandora_build_hook_list($hook, $refinements) as $hook) {
+    array_unshift($args, $hook);
+    $result = call_user_func_array('module_invoke_all', $args);
+    $return = array_merge_recursive($return, $result);
+    array_shift($args);
+  }
+  return $return;
+}
+
+/**
+ * Build a list of all the hooks to call.
+ *
+ * Concatenates each hook $refinement (escaped) to the hook name, for calling
+ * with module_invoke_all().
+ *
+ * Any non-valid PHP function characters in the given refinements are
+ * converted to "_" characters.
+ *
+ * @param string $hook
+ *   The base hook to concatenate.
+ * @param array $refinements
+ *   An array of strings, that will be escaped and concatinated with the given
+ *   hook. This will most likely be PIDs/DSIDs/Labels etc. We often refine our
+ *   hooks using an objects model.
+ *
+ * @return array
+ *   An array with each refinement escaped and concatenated with the base hook
+ *   name, in addition to the base hook name.
+ */
+function islandora_build_hook_list($hook, $refinements = array()) {
+  $refinements = array_unique($refinements);
+  $hooks = array($hook);
+  foreach ($refinements as $refinement) {
+    $refinement = preg_replace('/[^a-zA-Z0-9_]/', '_', $refinement);
+    $hooks[] = "{$refinement}_{$hook}";
+  }
+  return $hooks;
+}
+
+/**
+ * Escape a Fedora PID to be valid inside of a PHP function name.
+ *
+ * Originally intended to allow inclusion of a PID in a module_invoke_all()
+ * call.
+ */
+function islandora_escape_pid_for_function($pid) {
+  // Apparently, case doesn't matter for function calls in PHP, so let's not
+  // really worry about changing the case.
+  return str_replace(
+    // Any PID characters which are not valid in the name of a PHP function.
+    array(
+      ':',
+      '-',
+    ),
+    '_',
+    $pid
+  );
+}
+
+/**
+ * Gets the namespace of the given id.
+ *
+ * @param string $id
+ *   Either a PID or namespace to check for accessibility. Any string like those
+ *   below are fine.
+ *
+ * @code
+ *  'islandora',
+ *  'islandora:',
+ *  'islandora:1234',
+ * @endcode
+ *
+ * @return string
+ *   The namespace portion of the given string.
+ */
+function islandora_get_namespace($id) {
+  $matches = array();
+  preg_match('/^([^:]*)/', $id, $matches);
+  return $matches[0];
+}
+
+/**
+ * Checks the given namespace/PID is/has an  accessible namespace.
+ *
+ * Accessible is defined by the "islandora_pids_allowed" variable.
+ *
+ * @param string $id
+ *   Either a PID or namespace to check for accessibility. Any string like those
+ *   below are fine.
+ *
+ * @code
+ *  'islandora',
+ *  'islandora:',
+ *  'islandora:1234',
+ * @endcode
+ *
+ * @return bool
+ *   TRUE if accessible, FALSE otherwise.
+ */
+function islandora_namespace_accessible($id) {
+  if (variable_get('islandora_namespace_restriction_enforced', FALSE)) {
+    $namespace = islandora_get_namespace($id) . ':';
+    $allowed_namespaces = explode(" ", variable_get('islandora_pids_allowed', 'default: demo: changeme: islandora: ilives: islandora-book: books: newspapers: '));
+    return in_array($namespace, $allowed_namespaces);
+  }
+  return TRUE;
+}
+
+/**
+ * Gets any objects that the given object has a parent relationship with.
+ *
+ * Parent relationships are defined as (isMemberOf, isMemberOfCollection).
+ *
+ * This function gets its info from the RELS-EXT directly rather than through an
+ * risearch.
+ *
+ * @param FedoraObject $object
+ *   The object whose parents will be returned.
+ *
+ * @return array
+ *   An array of FedoraObject's that the given object has a
+ *   (isMemberOf, isMemberOfCollection) relationship with.
+ */
+function islandora_get_parents_from_rels_ext(FedoraObject $object) {
+  try {
+    $collections = array_merge(
+      $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOfCollection'),
+      $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOf'));
+  }
+  catch (RepositoryException $e) {
+    // @todo some logging would be nice, not sure what this throws.
+    return array();
+  }
+  $map = function($o) {
+    return islandora_object_load($o['object']['value']);
+  };
+  $collections = array_map($map, $collections);
+  return array_filter($collections);
+}
+
+/**
+ * Gets the datastreams requirments that are missing.
+ *
+ * @param FedoraObject $object
+ *   The object which models will be used to determine what datastreams it
+ *   should have.
+ *
+ * @return array
+ *   The DS-COMPOSITE-MODEL defined datastreams that are required for the given
+ *   object, but not already present.
+ */
+function islandora_get_missing_datastreams_requirements(FedoraObject $object) {
+  module_load_include('inc', 'islandora', 'includes/utilities');
+  $datastreams = islandora_get_datastreams_requirements($object);
+  foreach ($datastreams as $dsid => $requirements) {
+    if (isset($object[$dsid])) {
+      unset($datastreams[$dsid]);
+    }
+  }
+  return $datastreams;
+}
+
+/**
+ * Gets the required datastreams for the given object.
+ *
+ * Checks the object's content model's for which datastream are expected to be
+ * used with this object, as defined by the DS-COMPOSITE-MODEL datastreams.
+ *
+ * For duplicate datastreams in the models, the first model defines the
+ * datastreams attributes regardless of what other models define.
+ * This should be undefined behavior according to the documentation.
+ *
+ * @link https://wiki.duraspace.org/display/FEDORA34/Fedora+Digital+Object+Model#FedoraDigitalObjectModel-ContentModelObjectCMODEL @endlink
+ *
+ * @see islandora_get_required_datastreams_from_content_model()
+ *
+ * @param FedoraObject $object
+ *   The object which models will be used to determine what datastreams it
+ *   should have.
+ *
+ * @return array
+ *   The DS-COMPOSITE-MODEL defined datastreams that are required for the given
+ *   object.
+ */
+function islandora_get_datastreams_requirements(FedoraObject $object) {
+  return islandora_get_datastreams_requirements_from_models($object->models);
+}
+
+/**
+ * Get the list of which datastreams are valid in the given set of models.
+ *
+ * @param array $models
+ *   An array of content models PIDs from which to parse the DS-COMPOSITE-MODEL
+ *   stream.
+ *
+ * @return array
+ *   An associative array of associative arrays, merged from calls to
+ *   islandora_get_datastreams_requirements_from_content_model().
+ */
+function islandora_get_datastreams_requirements_from_models(array $models) {
+  $dsids = array();
+  foreach ($models as $model_pid) {
+    $model = islandora_object_load($model_pid);
+    if (isset($model) && $model) {
+      $dsids += islandora_get_datastreams_requirements_from_content_model($model);
+    }
+  }
+  // The AUDIT Datastream can not really be added, so it can't really be
+  // missing.
+  unset($dsids['AUDIT']);
+  return $dsids;
+}
+
+/**
+ * Checks the given content model for which datastreams are required.
+ *
+ * As defined by it's DS-COMPOSITE-MODEL datastream.
+ *
+ * @todo Add support for fetching the schema information.
+ *
+ * @param FedoraObject $object
+ *   The content model whose DS-COMPOSITE-MODEL datastream will be used to
+ *   determine what datastreams are required.
+ *
+ * @return array
+ *   The DS-COMPOSITE-MODEL defined datastreams that are required for the given
+ *   object.
+ *
+ * @code
+ *   array(
+ *     'DC' => array(
+ *       'id' => 'DC',
+ *       'mime' => 'text/xml',
+ *       'optional' => FALSE,
+ *     )
+ *   )
+ * @endcode
+ */
+function islandora_get_datastreams_requirements_from_content_model(FedoraObject $object) {
+  if (empty($object[DS_COMP_STREAM])) {
+    return array();
+  }
+  $xml = new SimpleXMLElement($object[DS_COMP_STREAM]->content);
+  foreach ($xml->dsTypeModel as $ds) {
+    $dsid = (string) $ds['ID'];
+    $optional = strtolower((string) $ds['optional']);
+    $mime = array();
+    foreach ($ds->form as $form) {
+      $mime[] = (string) $form['MIME'];
+    }
+    $dsids[$dsid] = array(
+      'id' => $dsid,
+      'mime' => $mime,
+      'optional' => ($optional == 'true') ? TRUE : FALSE,
+    );
+  }
+  return $dsids;
+}
+
+/**
+ * Prepare an ingestable object.
+ *
+ * @param string $namespace
+ *   The namespace in which the PID for the new object will be created.
+ * @param string $label
+ *   An optional label to apply to the object.
+ * @param array $datastreams
+ *   A array of datastreams to add, where each datastream definition is an
+ *   associative array containing:
+ *   - dsid: The datastream ID.
+ *   - label: An optional label for the datastream.
+ *   - mimetype: A MIMEtype for the datastream; defaults to text/xml.
+ *   - control_group: One of X, M, R and E; defaults to M.
+ *   - datastream_file: A web-accessible path, for which we try to get an
+ *     absolute path using url().
+ * @param array $content_models
+ *   An array of content model PIDs to which the new object should subscribe.
+ * @param array $relationships
+ *   An array of relationships, where each relationship is an associative array
+ *   containing:
+ *   - relationship: The predicate for the relationship, from the Fedora
+ *     RELS-EXT namespace.
+ *   - pid: The object for the relationship, to which we are creating the
+ *     relationhsip.
+ *
+ * @return NewFedoraObject
+ *   An ingestable NewFedoraObject.
+ */
+function islandora_prepare_new_object($namespace = NULL, $label = NULL, $datastreams = array(), $content_models = array(), $relationships = array()) {
+  global $user;
+  $tuque = islandora_get_tuque_connection();
+  $object = isset($namespace) ? $tuque->repository->constructObject($namespace) : new IslandoraNewFedoraObject(NULL, $tuque->repository);
+  $object->owner = isset($user->name) ? $user->name : $object->owner;
+  $object->label = isset($label) ? $label : $object->label;
+  foreach ($content_models as $content_model) {
+    $object->relationships->add(FEDORA_MODEL_URI, 'hasModel', $content_model);
+  }
+  foreach ($relationships as $relationship) {
+    $object->relationships->add(FEDORA_RELS_EXT_URI, $relationship['relationship'], $relationship['pid']);
+  }
+  foreach ($datastreams as $ds) {
+    $dsid = $ds['dsid'];
+    $label = isset($ds['label']) ? $ds['label'] : '';
+    $mimetype = isset($ds['mimetype']) ? $ds['mimetype'] : 'text/xml';
+    // Default 'Managed'
+    $control_group = 'M';
+    $groups = array('X', 'M', 'R', 'E');
+    if (isset($ds['control_group']) && in_array($ds['control_group'], $groups)) {
+      $control_group = $ds['control_group'];
+    }
+    $ds_uri = FALSE;
+    if (file_valid_uri($ds['datastream_file'])) {
+      $datastream_file = $ds['datastream_file'];
+      $ds_uri = TRUE;
+    }
+    else {
+      $datastream_file = url($ds['datastream_file'], array('absolute' => TRUE));
+    }
+    $datastream = $object->constructDatastream($dsid, $control_group);
+    $datastream->label = $label;
+    $datastream->mimetype = $mimetype;
+    switch ($control_group) {
+      case 'M':
+        if ($ds_uri) {
+          $datastream->setContentFromFile($datastream_file);
+        }
+        else {
+          $datastream->setContentFromUrl($datastream_file);
+        }
+        break;
+
+      case 'X':
+        $datastream->setContentFromString(file_get_contents($datastream_file));
+        break;
+    }
+    $object->ingestDatastream($datastream);
+  }
+  return $object;
+}
+
+/**
+ * Displays the repository is inaccessible message.
+ *
+ * Use anywhere we want to ensure a consitent error message when the repository
+ * is not accessible.
+ */
+function islandora_display_repository_inaccessible_message() {
+  $text = t('Islandora configuration');
+  $link = l($text, 'admin/islandora/configure', array('attributes' => array('title' => $text)));
+  $message = t('Could not connect to the repository. Please check the settings on the !link page.',
+             array('!link' => $link));
+  drupal_set_message($message, 'error', FALSE);
+}
+
+/**
+ * Create a message stating if the given executable is available.
+ *
+ * If the both the version and required version are given then only if the
+ * version is equal to or greater than the required version the executable
+ * will be considered correct.
+ *
+ * @param string $path
+ *   The absolute path to an executable to check for availability.
+ * @param string $version
+ *   The version of exectuable.
+ * @param string $required_version
+ *   The required version of exectuable.
+ *
+ * @return string
+ *   A message in html detailing if the given executable is accessible.
+ */
+function islandora_executable_available_message($path, $version = NULL, $required_version = NULL) {
+  $available = is_executable($path);
+  if ($available) {
+    $image = theme_image(array('path' => 'misc/watchdog-ok.png', 'attributes' => array()));
+    $message = t('Executable found at @path', array('@path' => $path));
+    if ($version) {
+      $message .= t('<br/>Version: @version', array('@version' => $version));
+    }
+    if ($required_version) {
+      $message .= t('<br/>Required Version: @version', array('@version' => $required_version));
+      if (version_compare($version, $required_version) < 0) {
+        $image = theme_image(array('path' => 'misc/watchdog-error.png', 'attributes' => array()));
+      }
+    }
+  }
+  else {
+    $image = theme_image(array('path' => 'misc/watchdog-error.png', 'attributes' => array()));
+    $message = t('Unable to locate executable at @path', array('@path' => $path));
+  }
+  return $image . $message;
+}
+
+/**
+ * Create a message stating if the given directory exists.
+ *
+ * @param string $path
+ *   The absolute path to an executable to check for availability.
+ *
+ * @return string
+ *   A message in HTML detailing if the given directory is exists.
+ */
+function islandora_directory_exists_message($path) {
+  $available = is_dir($path);
+  if ($available) {
+    $image = theme_image(array('path' => 'misc/watchdog-ok.png', 'attributes' => array()));
+    $message = t('Directory found at @path', array('@path' => $path));
+  }
+  else {
+    $image = theme_image(array('path' => 'misc/watchdog-error.png', 'attributes' => array()));
+    $message = t('Unable to locate directory at @path', array('@path' => $path));
+  }
+  return $image . $message;
+}
+
+/**
+ * Gets the default value for the given system_settings_form() element.
+ *
+ * Checks the $form_state for the default value if not it checks variable_get().
+ * Assumes #tree is FALSE. This is only really required for elements that utilize
+ * AJAX, as their value can change before the submit actually takes place.
+ *
+ * @param string $name
+ *   The name of the system settings form element.
+ * @param mixed $default_value
+ *   The default value for the system settings form element.
+ * @param array $form_state
+ *   The Drupal form state.
+ *
+ * @return mixed
+ *   The default value for use in a the system_settings_form().
+ */
+function islandora_system_settings_form_default_value($name, $default_value, array &$form_state) {
+  return isset($form_state['values'][$name]) ? $form_state['values'][$name] : variable_get($name, $default_value);
 }

islandora.api.php

@@ -1,120 +1,409 @@
 <?php
+
 /**
- * remove a datastream from a repository object
- * @param object $fedora_object
- *  tuque FedoraObject
- * @param string $datastream_id 
+ * @file
+ * This file documents all available hook functions to manipulate data.
  */
-function hook_islandora_purge_datastream ($fedora_object, $datastream_id){}
 
 /**
+ * Generate a repository objects view.
+ *
+ * @param FedoraObject $object
+ *   The object to display
+ * @param object $user
+ *   The user accessing the object.
+ * @param string $page_number
+ *   The page in the content.
+ * @param string $page_size
+ *   The size of the page.
  *
- * @param type $object 
- *   tuque FedoraObject
+ * @return array
+ *   An array whose values are markup.
  */
-function hook_islandora_purge_object($islandora_object) {} 
+function hook_islandora_view_object($object, $user, $page_number, $page_size) {
+}
 
 /**
- * allows modules to add to a repository objects display.  If you implement this
- * hook you should also register your module for view with the get types hook.  
+ * Generate an object's display for the given content model.
  *
- * islandora gets all displays back in an array and iterates over them.  the order 
- * they are displayed is based on the order of the key of the array that each
- * module returns.
+ * Content models PIDs have colons and hyphens changed to underscores, to
+ * create the hook name.
  *
- * your module may also want to register a varible that says whether or not it 
- * should be part of the default display. Modules can also add secondary tabs as
- * a way to add there output to an islandora display.  the basic image module has 
- * samples of both (the secondary tabs examples are commented out)
+ * @param FedoraObject $object
+ *   A Tuque FedoraObject
  *
- * @param type $islandora_object
- *   tuque FedoraObject 
+ * @return array
+ *   An array whose values are markup.
  */
-function hook_islandora_view_object($islandora_object){}
+function hook_CMODEL_PID_islandora_view_object($object) {
+}
+
 
 /**
- * returns an array listing object types provided by sub modules
- *  Ex.  array($types['islandora:collectionCModel'][ISLANDORA_VIEW_HOOK] = variable_get('islandora_basic_collection_use_for_default_tab', TRUE);
- * $types['islandora:collectionCModel'][ISLANDORA_EDIT_HOOK] = FALSE;
+ * Alter display output after it has been generated.
+ *
+ * @param FedoraObject $object
+ *   A Tuque FedoraObject being operated on.
+ * @param array $rendered
+ *   An arr of rendered views.
+ */
+function hook_islandora_view_object_alter(&$object, &$rendered) {
+}
+
+/**
+ * Generate an object's management display.
+ *
+ * @param FedoraObject $object
+ *   A Tuque FedoraObject
  *
  * @return array
+ *   An array whose values are markup.
  */
-function hook_islandora_get_types(){}
+function hook_islandora_edit_object($object) {
+}
 
 /**
- * allows modules to define an object edit page by cmodel
+ * Generate an object's management display for the given content model.
  *
- * your module should return true for ISLANDORA_EDIT_HOOK in its get_types function
+ * Content models PIDs have colons and hyphens changed to underscores, to
+ * create the hook name.
  *
- * islandora provides a default implementation that should work for most use cases
- * @param string $islandora_object
- * @return string 
+ * @param FedoraObject $object
+ *   A Tuque FedoraObject
  *
+ * @return array
+ *   An array whose values are markup.
  */
-function hook_islandora_edit_object($islandora_object){}
+function hook_CMODEL_PID_islandora_edit_object($object) {
+}
 
 /**
- * allows modules to alter the fedora object before it is pass through the edit
- * hooks
- * @param type $islandora_object 
- *   a tugue FedoraObject
+ * Allow management display output to be altered.
+ *
+ * @param FedoraObject $object
+ *   A Tuque FedoraObject
+ * @param array $rendered
+ *   an arr of rendered views
  */
-function islandora_islandora_edit_object_alter ($islandora_object){}
+function hook_islandora_edit_object_alter(&$object, &$rendered) {
+}
 
+/**
+ * Allows modules to alter the object or block/modify the given action.
+ *
+ * This alter hook will be called before any object is ingested, modified or
+ * purged.
+ *
+ * Changing object properties such as "label", or "state", are considered
+ * modifications, where as manipulating an object's datstreams are not.
+ *
+ * @param AbstractFedoraObject $object
+ *   The object to alter.
+ * @param array $context
+ *   An associative array containing:
+ *   - action: A string either 'ingest', 'purge', 'modify'.
+ *   - block: Either TRUE or FALSE, if TRUE the action won't take place.
+ *     Defaults to FALSE.
+ *   - purge: Either TRUE or FALSE, only present when the action is 'purge'.
+ *     If 'delete' or 'block' is set to TRUE, they will take precedence.
+ *     Defaults to TRUE.
+ *   - delete: Either TRUE or FALSE, only present when the action is 'purge'.
+ *     If TRUE it will cause the object's state to be set to 'D' instead.
+ *     If 'block' is set to TRUE, it will take precedence.
+ *     Defaults to FALSE,
+ *   - params: An associative array, only present when the action is 'modify'.
+ *     The key value pairs repersent what values will be changed. The params
+ *     will match the same params as passed to FedoraApiM::modifyObject().
+ *
+ * @see FedoraApiM::modifyObject()
+ */
+function hook_islandora_object_alter(AbstractFedoraObject $object, array &$context) {
+}
 
 /**
- * creates and populates a php Fedora object. 
+ * Allows modules to alter the object or block/modify the given action.
+ *
+ * @see hook_islandora_object_alter()
  */
-function hook_islandora_preingest_alter(){}
+function hook_CMODEL_PID_islandora_object_alter(AbstractFedoraObject $object, array &$context) {
+}
 
 /**
- * modules can implement this hook to add or remove datastreams after an
- * object has been ingested.  
+ * Allows modules to alter the datastream or block/modify the given action.
  *
- * Each module should check for the newly ingested repository objects content 
- * model to make sure it is a type of object they want to act on.  
+ * This alter hook will be called before any datastream is ingested, modified or
+ * purged.
  *
- * @param type $islandora_object 
- *   tugue FeodoraObject
+ * Adding datastreams to NewFedoraObject's will not trigger this alter hook
+ * immediately, instead it will be triggered for all datastreams at the time
+ * of the NewFedoraObject's ingest.
+ *
+ * Purging datastreams from a NewFedoraObject will not trigger this alter hook
+ * at all.
+ *
+ * Changing datastream's properties such as "label", or "state", are considered
+ * modifications, as well as changing the datastreams content.
+ *
+ * @param AbstractFedoraObject $object
+ *   The object to the datastream belong to.
+ * @param AbstractFedoraDatastream $datastream
+ *   The datastream to alter.
+ * @param array $context
+ *   An associative array containing:
+ *   - action: A string either 'ingest', 'purge', 'modify'.
+ *   - block: Either TRUE or FALSE, if TRUE the action won't take place.
+ *     Defaults to FALSE.
+ *   - purge: Either TRUE or FALSE, only present when the action is 'purge'.
+ *     If 'delete' or 'block' is set to TRUE, they will take precedence.
+ *     Defaults to TRUE.
+ *   - delete: Either TRUE or FALSE, only present when the action is 'purge'.
+ *     If TRUE it will cause the object's state to be set to 'D' instead.
+ *     If 'block' is set to TRUE, it will take precedence.
+ *     Defaults to FALSE,
+ *   - params: An associative array, only present when the action is 'modify'.
+ *     The key value pairs repersent what values will be changed. The params
+ *     will match the same params as passed to FedoraApiM::modifyDatastream().
+ *
+ * @see FedoraApiM::modifyDatastream()
  */
-function hook_islandora_postingest($islandora_object){}
+function hook_islandora_datastream_alter(AbstractFedoraObject $object, AbstractFedoraDatastream $datastream, array &$context) {
+}
 
 /**
- * Register potential ingest routes. Implementations should return an array containing possible routes.
- * Ex. array(
- *       array('name' => t('Ingest Route Name'), 'url' => 'ingest_route/url', 'weight' => 0),
- *     );
+ * Allows modules to alter the datastream or block/modify the given action.
+ *
+ * @see hook_islandora_datastream_alter()
  */
-function hook_islandora_ingest_registry($collection_object) {}
+function hook_CMODEL_PID_DSID_islandora_datastream_alter(AbstractFedoraObject $object, AbstractFedoraDatastream $datastream, array &$context) {
+}
 
 /**
- * Register a datastream edit route/form.
- * @param $islandora_object
- * @param $ds_id
+ * Notify modules that the given object was ingested.
+ *
+ * This hook is called after an object has been successfully ingested via a
+ * FedoraRepository object.
+ *
+ * @note
+ * If ingested directly via the FedoraApiM object this will not be called as we
+ * don't have access to the ingested object at that time.
+ *
+ * @param FedoraObject $object
+ *   The object that was ingested.
  */
-function hook_islandora_edit_datastream_registry($islandora_object, $ds_id) {}
+function hook_islandora_object_ingested(FedoraObject $object) {
+}
 
 /**
- * alter an object before it gets used further down the stack
- * @param type $object 
- *   a tuque FedoraObject
+ * Notify modules that the given object was ingested.
+ *
+ * @see hook_islandora_object_ingested()
  */
-function hook_islandora_object_alter ($fedora_object){}
+function hook_CMODEL_PID_islandora_object_ingested(FedoraObject $object) {
+}
 
 /**
- * insert or remove rendered elements by implementing this function 
- * in your module 
- * @param type $arr 
- *   an arr of rendered views
+ * Notify modules that the given object was modified.
+ *
+ * This hook is called after an object has been successfully modified.
+ *
+ * Changing object properties such as "label", or "state", are considered
+ * modifications, where as manipulating an object's datstreams are not.
+ *
+ * @param FedoraObject $object
+ *   The object that was ingested.
+ *
+ * @todo We should also include what changes were made in a additional
+ *   parameter.
  */
-function hook_islandora_display_alter ($arr){}
+function hook_islandora_object_modified(FedoraObject $object) {
+}
 
 /**
+ * Notify modules that the given object was ingested.
  *
- * @param type $islandora_object
- *   a tuque FedoraObject
- * @param array $content_models
- * @param string $collection_pid 
+ * @see hook_islandora_object_modified()
  */
-function hook_islandora_ingest_pre_ingest($islandora_object, $content_models, $collection_pid){}
+function hook_CMODEL_PID_islandora_object_modified(FedoraObject $object) {
+}
 
+/**
+ * Notify modules that the given object was purged/deleted.
+ *
+ * This hook is called after an object has been successfully purged, or
+ * when its state has been changed to "Deleted".
+ *
+ * @param string $pid
+ *   The ID of the object that was purged/deleted.
+ */
+function hook_islandora_object_purged($pid) {
+}
+
+/**
+ * Notify modules that the given object was purged/deleted.
+ *
+ * @see hook_islandora_object_purged()
+ */
+function hook_CMODEL_PID_islandora_object_purged($pid) {
+}
+
+/**
+ * Notify modules that the given datastream was ingested.
+ *
+ * This hook is called after the datastream has been successfully ingested.
+ *
+ * @note
+ * If ingested directly via the FedoraApiM object this will not be called as we
+ * don't have access to the ingested datastream at that time.
+ *
+ * @param FedoraObject $object
+ *   The object the datastream belongs to.
+ * @param FedoraDatastream $datastream
+ *   The ingested datastream.
+ */
+function hook_islandora_datastream_ingested(FedoraObject $object, FedoraDatastream $datastream) {
+}
+
+/**
+ * Notify modules that the given datastream was ingested.
+ *
+ * @see hook_islandora_object_ingested()
+ */
+function hook_CMODEL_PID_DSID_islandora_datastream_ingested(FedoraObject $object, FedoraDatastream $datastream) {
+}
+
+/**
+ * Notify modules that the given datastream was modified.
+ *
+ * This hook is called after an datastream has been successfully modified.
+ *
+ * Changing datastream properties such as "label", or "state", are considered
+ * modifications, as well as the datastreams content.
+ *
+ * @param FedoraObject $object
+ *   The object the datastream belongs to.
+ * @param FedoraDatastream $datastream
+ *   The datastream that was ingested.
+ *
+ * @todo We should also include what changes were made in a additional
+ *   parameter.
+ */
+function hook_islandora_datastream_modified(FedoraObject $object, FedoraDatastream $datastream) {
+}
+
+/**
+ * Notify modules that the given datastream was ingested.
+ *
+ * @see hook_islandora_datastream_modified()
+ */
+function hook_CMODEL_PID_islandora_datastream_modified(FedoraObject $object, FedoraDatastream $datastream) {
+}
+
+/**
+ * Notify modules that the given datastream was purged/deleted.
+ *
+ * This hook is called after an datastream has been successfully purged, or
+ * when its state has been changed to "Deleted".
+ *
+ * @param FedoraObject $object
+ *   The object the datastream belonged to.
+ * @param string $dsid
+ *   The ID of the datastream that was purged/deleted.
+ */
+function hook_islandora_datastream_purged(FedoraObject $object, $dsid) {
+}
+
+/**
+ * Notify modules that the given datastream was purged/deleted.
+ *
+ * @see hook_islandora_datastream_purged()
+ */
+function hook_CMODEL_PID_islandora_datastream_purged(FedoraObject $object, $dsid) {
+}
+
+/**
+ * Register a datastream edit route/form.
+ *
+ * @param FedoraObject $object
+ *   The object to check.
+ * @param string $dsid
+ *   todo
+ */
+function hook_islandora_edit_datastream_registry($object, $dsid) {
+}
+
+/**
+ * Registry hook for required objects.
+ *
+ * Solution packs can include data to create certain objects that describe or
+ * help the objects it would create. This includes collection objects and
+ * content models.
+ *
+ * @see islandora_solution_packs_admin()
+ * @see islandora_install_solution_pack()
+ * @example islandora_islandora_required_objects()
+ */
+function hook_islandora_required_objects() {
+}
+
+/**
+ * Registry hook for viewers that can be implemented by solution packs.
+ *
+ * Solution packs can use viewers for their data. This hook lets Islandora know
+ * which viewers there are available.
+ *
+ * @see islandora_get_viewers()
+ * @see islandora_get_viewer_callback()
+ */
+function hook_islandora_viewer_info() {
+}
+
+/**
+ * Returns a list of datastreams that are determined to be undeletable.
+ */
+function hook_islandora_undeletable_datastreams(array $models) {
+}
+
+/**
+ * Define steps used in the islandora_ingest_form() ingest process.
+ *
+ * @param array $form_state
+ *   An array containing the form_state, on which infomation from step storage
+ *   might be extracted.  Note that the
+ *
+ * @return array
+ *   An associative array of associative arrays which define each step in the
+ *   ingest process.  Each step should consist of a unique name mapped to an
+ *   array of properties (keys) including:
+ *   - type: The type of step.  Currently, only "form" is implemented.
+ *   - weight: The "weight" of this step--heavier(/"larger") values sink to the
+ *     end of the process while smaller(/"lighter") values are executed first.
+ *   - form_id: The form building function to call to get the form structure
+ *     for this step.
+ *   - args: An array of arguments to pass to the form building function.
+ *   And may optionally include both:
+ *   - module: A module from which we want to load an include.
+ *   - file: A file to include (relative to the module's path, including the
+ *     file's extension).
+ */
+function hook_islandora_ingest_steps(array $form_state) {
+  return array(
+    'my_cool_step_definition' => array(
+      'type' => 'form',
+      'weight' => 1,
+      'form_id' => 'my_cool_form',
+      'args' => array('arg_one', 'numero deux'),
+    ),
+  );
+}
+/**
+ * Content model specific version of hook_islandora_ingest_steps().
+ *
+ * XXX: Content models are not selected in a generic manner. Currently, this
+ *   gets called for every content model in the "configuration", yet the
+ *   configuration never changes.  We should determine a consistent way to bind
+ *   content models, so as to consistently be able to build steps.
+ *
+ * @see hook_islandora_ingest_steps()
+ */
+function hook_CMODEL_PID_islandora_ingest_steps(array $form_state) {
+}

islandora.info

@@ -1,4 +1,4 @@
-name = Islandora Repository
+name = Islandora
 description = "View and manage Fedora objects"
 package = Islandora
 version = 7.x-1.0
@@ -6,4 +6,12 @@ core = 7.x
 configure = admin/islandora/configure
 stylesheets[all][] = css/islandora.base.css
 stylesheets[all][] = css/islandora.theme.css
+files[] = includes/mime_detect.inc
+files[] = includes/dublin_core.inc
+files[] = includes/tuque.inc
+files[] = includes/tuque_wrapper.inc
+files[] = includes/object.entity_controller.inc
+files[] = tests/web_test_case.inc
+files[] = tests/authtokens.test
+files[] = tests/hooks.test
 php = 5.3

islandora.install

@@ -0,0 +1,95 @@
+<?php
+
+/**
+ * @file
+ * This file contains all install related hooks.
+ */
+
+/**
+ * Implements hook_install().
+ *
+ * @see islandora_islandora_required_objects()
+ */
+function islandora_install() {
+  module_load_include('inc', 'islandora', 'includes/solution_packs');
+  islandora_install_solution_pack('islandora');
+}
+
+/**
+ * Implements hook_uninstall().
+ *
+ * @see islandora_islandora_required_objects()
+ */
+function islandora_uninstall() {
+  module_load_include('inc', 'islandora', 'includes/solution_packs');
+  islandora_install_solution_pack('islandora', 'uninstall');
+}
+
+/**
+ * Implements hook_schema().
+ */
+function islandora_schema() {
+  $schema['islandora_authtokens'] = array(
+    'description' => 'The hub for all islandora authentication tokens',
+    'fields' => array(
+      'id' => array(
+        'description' => 'key',
+        'type' => 'serial',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+      ),
+      'token' => array(
+        'description' => 'a unique identifier for this token',
+        'type' => 'varchar',
+        'length' => 64,
+      ),
+      'remaining_uses' => array(
+        'description' => 'How many uses until this should be removed',
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+      ),
+      'uid' => array(
+        'description' => 'the user id that requested this token',
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+      ),
+      'time' => array(
+        'description' => 'when this token was created',
+        'type' => 'int',
+        'unsigned' => TRUE,
+        'not null' => TRUE,
+      ),
+      'pid' => array(
+        'description' => 'the pid of the object this token unlocks',
+        'type' => 'varchar',
+        'length' => 128,
+        'not null' => TRUE,
+      ),
+      'dsid' => array(
+        'description' => 'the datasteram id of the object this token unlocks',
+        'type' => 'varchar',
+        'length' => 32,
+        'not null' => TRUE,
+      ),
+    ),
+    'unique keys' => array(
+      'id' => array('id'),
+    ),
+    'primary key' => array('id'),
+  );
+  return $schema;
+}
+
+/**
+ * Implements hook_update_N().
+ *
+ * Add the required table for handling authentication tokens.
+ * This is the first instance that has this table.
+ */
+function islandora_update_7001(&$sandbox) {
+  drupal_install_schema('islandora');
+  $t = get_t();
+  return $t("Islandora database updates complete");
+}

islandora.rules.inc

@@ -0,0 +1,118 @@
+<?php
+
+/**
+ * @file
+ * Does rule type stuff,
+ */
+
+/**
+ * Helper function to get reused "parameter" array.
+ */
+function islandora_rules_relationship_parameter_array() {
+  $to_return = array(
+    'subject' => array(
+      'type' => 'islandora_object',
+      'label' => t('Subject'),
+      'description' => t('An object of which we should check the relationships (The "subject" of the relationship).'),
+    ),
+    'pred_uri' => array(
+      'type' => 'text',
+      'label' => t('Predicate URI'),
+      'description' => t('The URI namespace to which the predicate belongs.'),
+    ),
+    'pred' => array(
+      'type' => 'text',
+      'label' => t('Predicate'),
+      'description' => t('The predicate of the relationship.'),
+    ),
+    'object' => array(
+      'type' => 'text',
+      'label' => t('Object'),
+      'description' => t('The object of the relationship.'),
+      'allow null' => TRUE,
+      'default value' => NULL,
+    ),
+    'type' => array(
+      'type' => 'integer',
+      'label' => t('Object type in the relationship'),
+      'description' => t('0=URI, 1=plain literal'),
+      'default value' => 0,
+    ),
+  );
+
+  return $to_return;
+}
+
+/**
+ * Implements hook_rules_condition_info().
+ */
+function islandora_rules_condition_info() {
+  $cond = array();
+
+  $cond['islandora_object_has_relationship'] = array(
+    'label' => t('Check object for a relationship'),
+    'group' => t('Islandora'),
+    'parameter' => islandora_rules_relationship_parameter_array(),
+  );
+
+  return $cond;
+}
+
+/**
+ * Implements hook_rules_action_info().
+ */
+function islandora_rules_action_info() {
+  $cond = array();
+
+  $cond['islandora_object_remove_relationship'] = array(
+    'label' => t('Remove a relationship from an object'),
+    'group' => t('Islandora'),
+    'parameter' => islandora_rules_relationship_parameter_array(),
+  );
+
+  $cond['islandora_object_add_relationship'] = array(
+    'label' => t('Add a relationship to an object'),
+    'group' => t('Islandora'),
+    'parameter' => islandora_rules_relationship_parameter_array(),
+  );
+  return $cond;
+}
+/**
+ * Checks that there is a relationship match on the given object.
+ *
+ * Takes a subject (either a FedoraObject or a FedoraDatastream), as well as
+ * the parameters for FedoraRelsExt::get() or FedoraRelsInt::get(), to try to
+ * find a match.
+ *
+ * @see FedoraRelsExt::get()
+ */
+function islandora_object_has_relationship($sub, $pred_uri, $pred, $object, $type) {
+  $relationships = $sub->relationships->get($pred_uri, $pred, $object, $type);
+  return !empty($relationships);
+}
+
+/**
+ * Remove a relationship from the given object.
+ *
+ * Takes a subject (either a FedoraObject or a FedoraDatastream), as well as
+ * the parameters for FedoraRelsExt::remove() or FedoraRelsInt::remove(), to
+ * try to find a match.
+ *
+ * @see FedoraRelsExt::get()
+ */
+function islandora_object_remove_relationship($sub, $pred_uri, $pred, $object, $type) {
+  $sub->relationships->remove($pred_uri, $pred, $object, $type);
+}
+
+/**
+ * Add a relationship to the given object.
+ *
+ * Takes a subject (either a FedoraObject or a FedoraDatastream), as well as
+ * the parameters for FedoraRelsExt::add() or FedoraRelsInt::add(), and adds
+ * the represented relationship.
+ *
+ * @see FedoraRelsExt::get()
+ */
+function islandora_object_add_relationship($sub, $pred_uri, $pred, $object, $type) {
+  $sub->relationships->add($pred_uri, $pred, $object, $type);
+}

policies/permit-apim-to-authenticated-user.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Policy xmlns="urn:oasis:names:tc:xacml:1.0:policy"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        PolicyId="permit-apim-to-authenticated-user"
+        RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
+  <Description>note that other policies may provide exceptions to this broad policy.  This policy assumes api-m users have to be authenticated</Description>
+  <Target>
+    <Subjects>
+      <Subject>
+	<SubjectMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+          <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">authenticated user</AttributeValue>
+          <SubjectAttributeDesignator AttributeId="fedoraRole" MustBePresent="false"
+				      DataType="http://www.w3.org/2001/XMLSchema#string"/>
+	</SubjectMatch>
+      </Subject>
+    </Subjects>
+    <Resources>
+      <AnyResource/>
+    </Resources>
+    <Actions>
+      <Action>
+	<ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+          <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">urn:fedora:names:fedora:2.1:action:api-m</AttributeValue>
+          <ActionAttributeDesignator DataType="http://www.w3.org/2001/XMLSchema#string"
+            AttributeId="urn:fedora:names:fedora:2.1:action:api"/>
+        </ActionMatch>
+      </Action>
+    </Actions>
+  </Target>
+  <Rule RuleId="1" Effect="Permit"/>
+</Policy>

policies/permit-getDatastream-unrestricted.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Policy xmlns="urn:oasis:names:tc:xacml:1.0:policy"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       PolicyId="permit-getDatastreamHistory-to-authenticated"
+       RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
+ <Description>Note that other policies may provide exceptions to this broad policy. This policy assumes api-m users have to be authenticated</Description>
+ <Target>
+   <Subjects>
+     <AnySubject/>
+   </Subjects>
+   <Resources>
+     <AnyResource/>
+   </Resources>
+   <Actions>
+     <Action>
+       <ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+         <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">urn:fedora:names:fedora:2.1:action:id-getDatastream</AttributeValue>
+         <ActionAttributeDesignator DataType="http://www.w3.org/2001/XMLSchema#string"
+           AttributeId="urn:fedora:names:fedora:2.1:action:id"/>
+       </ActionMatch>
+     </Action>
+   </Actions>
+ </Target>
+ <Rule RuleId="1" Effect="Permit"/>
+</Policy>

policies/permit-getDatastreamHistory-unrestricted.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Policy xmlns="urn:oasis:names:tc:xacml:1.0:policy"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       PolicyId="permit-getDatastreamHistory-to-authenticated"
+       RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
+ <Description>Note that other policies may provide exceptions to this broad policy. This policy assumes api-m users have to be authenticated</Description>
+ <Target>
+   <Subjects>
+     <AnySubject/>
+   </Subjects>
+   <Resources>
+     <AnyResource/>
+   </Resources>
+   <Actions>
+     <Action>
+       <ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+         <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">urn:fedora:names:fedora:2.1:action:id-getDatastreamHistory</AttributeValue>
+         <ActionAttributeDesignator DataType="http://www.w3.org/2001/XMLSchema#string"
+				    AttributeId="urn:fedora:names:fedora:2.1:action:id"/>
+       </ActionMatch>
+     </Action>
+   </Actions>
+ </Target>
+ <Rule RuleId="1" Effect="Permit"/>
+</Policy>

policies/permit-upload-to-authenticated-user.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Policy xmlns="urn:oasis:names:tc:xacml:1.0:policy"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        PolicyId="permit-upload-to-authenticated-user"
+        RuleCombiningAlgId="urn:oasis:names:tc:xacml:1.0:rule-combining-algorithm:first-applicable">
+  <Description></Description>
+  <Target>
+    <Subjects>
+      <Subject>
+        <SubjectMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+          <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">authenticated user</AttributeValue>
+          <SubjectAttributeDesignator AttributeId="fedoraRole" MustBePresent="false"
+            DataType="http://www.w3.org/2001/XMLSchema#string"/>
+        </SubjectMatch>
+      </Subject>
+    </Subjects>
+    <Resources>
+      <AnyResource/>
+    </Resources>
+    <Actions>
+     <Action>
+       <ActionMatch MatchId="urn:oasis:names:tc:xacml:1.0:function:string-equal">
+         <AttributeValue DataType="http://www.w3.org/2001/XMLSchema#string">urn:fedora:names:fedora:2.1:action:id-upload</AttributeValue>
+         <ActionAttributeDesignator DataType="http://www.w3.org/2001/XMLSchema#string"
+           AttributeId="urn:fedora:names:fedora:2.1:action:id"/>
+       </ActionMatch>
+     </Action>
+    </Actions>
+  </Target>
+  <Rule RuleId="1" Effect="Permit"/>
+</Policy>

tests/README.txt

@@ -0,0 +1,3 @@
+You can define your own configurations specific to your enviroment by copying
+default.test_config.ini to test_config.ini, making your changes in the copied
+file.

tests/authtokens.test

@@ -0,0 +1,110 @@
+<?php
+
+/**
+ * @file
+ * Test Authentication Tokens.
+ */
+
+class IslandoraAuthtokensTestCase extends IslandoraWebTestCase {
+
+  /**
+   * Get test information for display.
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'Islandora Authorization Tokens',
+      'description' => 'Ensure the correct functionality of the tokens to pass authorization to Djatoka in Islandora.',
+      'group' => 'Islandora',
+    );
+  }
+
+  /**
+   * Set up data for the tests.
+   */
+  public function setUp() {
+    parent::setUp();
+  }
+
+  /**
+   * Test redeeming invalid tokens.
+   */
+  public function testRedeemInvalidToken() {
+    module_load_include('inc', 'islandora', 'includes/authtokens');
+    $token = islandora_get_object_token('test:pid', 'woot', 1);
+    $this->assertTrue($token, 'Token was generated correctly.', 'Unit Tests');
+    // Redeem a token that doesn't exist with real pid and dsid.
+    $account = islandora_validate_object_token('test:pid', 'woot', 'foo');
+    $this->assertFalse($account, 'Redeeming an token that doesn\'t exist returns FALSE', 'Unit Tests');
+  }
+
+  /**
+   * Test redeeming valid tokens.
+   */
+  public function testRedeemValidToken() {
+    module_load_include('inc', 'islandora', 'includes/authtokens');
+    // Change the current user.
+    global $user;
+    $user_backup = $user;
+    $test_account = $this->drupalCreateUser();
+    $user = $test_account;
+    $token = islandora_get_object_token('test:pid', 'woot', 1);
+
+    // Logout again.
+    $user = $user_backup;
+    $token_account = islandora_validate_object_token('test:pid', 'woot', $token);
+    $this->assertEqual($token_account->uid, $test_account->uid, 'UID from token is correct', 'Unit Tests');
+    $this->assertEqual($token_account->pass, $test_account->pass, 'Pass from token is correct', 'Unit Tests');
+    $this->assertEqual($token_account->name, $test_account->name, 'Name from token is correct', 'Unit Tests');
+  }
+
+  /**
+   * Test tokened datastream view without XACML.
+   */
+  public function testTokenedViewDatastreamWithoutXacml() {
+    // Ingest the fixture.
+    $fixture_path = drupal_get_path('module', 'islandora') . '/tests/fixtures/bug.jp2';
+    $tuque = islandora_get_tuque_connection();
+    $newpid = "{$this->randomName()}:{$this->randomName()}";
+    $fixture_object = $tuque->repository->constructObject($newpid);
+    $fixture_datastream = $fixture_object->constructDatastream('JP2');
+    $fixture_datastream->setContentFromFile($fixture_path, TRUE);
+    $fixture_object->ingestDatastream($fixture_datastream);
+    $tuque->repository->ingestObject($fixture_object);
+
+    $this->drupalGet("islandora/object/{$newpid}/datastream/JP2/view");
+    $this->assertResponse(403, 'Page not found as anonymous');
+
+    $account = $this->drupalCreateUser(array(FEDORA_VIEW_OBJECTS));
+    $this->drupalLogin($account);
+
+    $this->drupalGet("islandora/object/{$newpid}/datastream/JP2/view");
+    $this->assertResponse(200, 'Page loaded as the authorized user');
+
+    // Do some voodoo to get a token as the user we are connecting as
+    // to do this we need to change the user we are logged in as.
+    module_load_include('inc', 'islandora', 'includes/authtokens');
+    global $user;
+    $backup = $user;
+    $user = $account;
+    $token = islandora_get_object_token($newpid, 'JP2', 1);
+    $user = $backup;
+
+    $this->drupalLogout();
+
+    $this->drupalGet("islandora/object/{$newpid}/datastream/JP2/view", array('query' => array('token' => $token)));
+    $this->assertResponse(200, 'Page loaded with the token');
+
+    $this->drupalGet("islandora/object/{$newpid}/datastream/JP2/view", array('query' => array('token' => $token)));
+    $this->assertResponse(403, 'Token is unable to be reused');
+
+    // Delete fixture object.
+    $tuque->repository->purgeObject($newpid);
+  }
+
+  /**
+   * This will test something someday.
+   */
+  public function testTokenedViewDatastreamWithXacml() {
+    // We need to add this test.
+  }
+}

tests/default.test_config.ini

@@ -0,0 +1,6 @@
+[fedora]
+fedora_url = "http://localhost:8080/fedora"
+use_drupal_filter = TRUE
+drupal_filter_file = "/usr/local/fedora/server/config/filter-drupal.xml"
+admin_user = "fedoraAdmin"
+admin_pass = "fedoraAdmin"

tests/hooks.test

@@ -0,0 +1,213 @@
+<?php
+
+/**
+ * @file
+ * Tests to see if the hooks get called when appropriate.
+ *
+ * In the test module 'islandora_hooks_test' there are implementations
+ * of hooks being tested. These implementations modifies the session, and
+ * that's how we test if the hook gets called.
+ *
+ * To make sense of these tests reference islandora_hooks_test.module.
+ */
+
+class IslandoraHooksTestCase extends IslandoraWebTestCase {
+
+  /**
+   * Gets info to display to describe this test.
+   *
+   * @see IslandoraWebTestCase::getInfo()
+   */
+  public static function getInfo() {
+    return array(
+      'name' => 'Islandora Hooks',
+      'description' => 'Ensure that the hooks for ingestion/purge/modification are called at the appropriate times.',
+      'group' => 'Islandora',
+    );
+  }
+
+  /**
+   * Creates an admin user and a connection to a fedora repository.
+   *
+   * @see IslandoraWebTestCase::setUp()
+   */
+  public function setUp() {
+    parent::setUp('islandora_hooks_test', 'devel');
+    $this->repository = $this->admin->repository;
+    $this->purgeTestObjects();
+  }
+
+  /**
+   * Free any objects/resources created for this test.
+   *
+   * @see IslandoraWebTestCase::tearDown()
+   */
+  public function tearDown() {
+    $this->purgeTestObjects();
+    unset($this->repository);
+    parent::tearDown();
+  }
+
+  /**
+   * Purge any objects created by the test's in this class.
+   */
+  public function purgeTestObjects() {
+    $objects = array(
+      'test:testIngestedObjectHook',
+      'test:testBlockedIngestedObjectHook',
+      'test:testModifiedObjectHook',
+      'test:testPurgedObjectHook',
+      'test:testIngestedDatastreamHook',
+      'test:testModifiedDatastreamHook',
+      'test:testPurgedDatastreamHook',
+    );
+    foreach ($objects as $object) {
+      try {
+        $object = $this->repository->getObject($object);
+        $object->label = "Don't Block";
+        $this->repository->purgeObject($object->id);
+      }
+      catch(Exception $e) {
+        // Meh... Either it didn't exist or the purge failed.
+      }
+    }
+  }
+
+  /**
+   * Test ALL THE HOOKS!.
+   */
+  public function testHooks() {
+    // Test ingesting with FedoraRepository::ingestObject().
+    $object = $this->repository->constructObject('test:testIngestedObjectHook');
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_INGESTED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_INGESTED_HOOK] = FALSE;
+    $this->repository->ingestObject($object);
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_INGESTED_HOOK], 'Called "hook_islandora_object_alter" when ingesting via FedoraRepository::ingestObject.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_INGESTED_HOOK], 'Called ISLANDORA_OBJECT_INGESTED_HOOK when ingesting via FedoraRepository::ingestObject.');
+    $this->repository->purgeObject($object->id);
+    // Test blocking the ingest.
+    $object = $this->repository->constructObject('test:testIngestedObjectHook');
+    $object->label = 'block';
+    try {
+      $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_INGESTED_HOOK] = FALSE;
+      $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_INGESTED_HOOK] = FALSE;
+      $this->repository->ingestObject($object);
+      $this->fail('Blocked ingest should throw an Exception.');
+      $this->repository->purgeObject($object->id);
+    }
+    catch(Exception $e) {
+      $this->pass('Ingest blocked and exception thrown.');
+      $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_INGESTED_HOOK], 'Called "hook_islandora_object_alter" when blocking ingesting via FedoraRepository::ingestObject.');
+      $this->assertFalse($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_INGESTED_HOOK], 'Did not called ISLANDORA_OBJECT_INGESTED_HOOK when blocking ingesting via FedoraRepository::ingestObject.');
+    }
+    // Test modifying via set magic functions.
+    $object = $this->repository->constructObject('test:testModifiedObjectHook');
+    $this->repository->ingestObject($object);
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_MODIFIED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_MODIFIED_HOOK] = FALSE;
+    $object->label = "New Label!";
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_MODIFIED_HOOK], 'Called "hook_islandora_object_alter" when modifying via set magic functions.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_MODIFIED_HOOK], 'Called ISLANDORA_OBJECT_MODIFIED_HOOK when modifying via set magic functions.');
+    // Test blocking the modification.
+    try {
+      $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_MODIFIED_HOOK] = FALSE;
+      $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_MODIFIED_HOOK] = FALSE;
+      $object->label = 'block';
+      $this->fail('Blocked modify should throw an Exception.');
+    }
+    catch(Exception $e) {
+      $this->pass('Modify blocked and exception thrown.');
+      $this->assertNotEqual($object->label, 'block', 'Modification did not stick.');
+      $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_MODIFIED_HOOK], 'Called "hook_islandora_object_alter" when blocking modifying via set magic functions.');
+      $this->assertFALSE($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_MODIFIED_HOOK], 'Called ISLANDORA_OBJECT_MODIFIED_HOOK when blocking modifying via set magic functions.');
+    }
+    $this->repository->purgeObject($object->id);
+    // Test purging with FedoraRepository::purgeObject().
+    $object = $this->repository->constructObject('test:testPurgedObjectHook');
+    $this->repository->ingestObject($object);
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $this->repository->purgeObject($object->id);
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called "hook_islandora_object_alter" when purging via FedoraRepository::purgeObject.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called ISLANDORA_OBJECT_PURGED_HOOK when purging via FedoraRepository::purgeObject.');
+    // Test deleting.
+    $object = $this->repository->constructObject('test:testPurgedObjectHook');
+    $this->repository->ingestObject($object);
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $object->delete();
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called "hook_islandora_object_alter" when deleting via FedoraObject::delete.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called ISLANDORA_OBJECT_PURGED_HOOK when purging via FedoraObject::delete.');
+    $this->repository->purgeObject($object->id);
+    // Test alter blocking.
+    $object = $this->repository->constructObject('test:testPurgedObjectHook');
+    $this->repository->ingestObject($object);
+    try {
+      $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+      $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+      $object->label = 'block';
+      $this->repository->purgeObject($object->id);
+      $this->fail('Blocked modify should throw an Exception.');
+    }
+    catch(Exception $e) {
+      $this->pass('Modify blocked and exception thrown.');
+      $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called "hook_islandora_object_alter" when blocking purge via FedoraRepository::purgeObject.');
+      $this->assertFalse($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called ISLANDORA_OBJECT_PURGED_HOOK when blocking purge via FedoraRepository::purgeObject.');
+    }
+    // Test alter delete.
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = FALSE;
+    $object->label = 'delete';
+    $this->repository->purgeObject($object->id);
+    $this->assertEqual($object->state, 'D', '"hook_islandora_object_alter" prevented purge and deleted the object.');
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called "hook_islandora_object_alter" when preventing purge and deleting.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK], 'Called ISLANDORA_OBJECT_PURGED_HOOK when preventing purge and deleting.');
+    $object->label = 'Something other than delete';
+    $this->repository->purgeObject($object->id);
+    // Test ingesting with FedoraRepository::ingestObject().
+    $object = $this->repository->constructObject('test:testIngestedDatastreamHook');
+    $this->repository->ingestObject($object);
+    $ds = $object->constructDatastream('TEST');
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_INGESTED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_INGESTED_HOOK] = FALSE;
+    $object->ingestDatastream($ds);
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_INGESTED_HOOK], 'Called "hook_islandora_datastream_alter" when ingesting via FedoraObject::ingestDatastream.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_INGESTED_HOOK], 'Called ISLANDORA_DATASTREAM_INGESTED_HOOK when ingesting via FedoraObject::ingestDatastream.');
+    $this->repository->purgeObject($object->id);
+    // Test modifying a datastream.
+    $object = $this->repository->constructObject('test:testModifiedDatastreamHook');
+    $this->repository->ingestObject($object);
+    $ds = $object->constructDatastream('TEST');
+    $object->ingestDatastream($ds);
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = FALSE;
+    $ds->label = "New Label!";
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_MODIFIED_HOOK], 'Called "hook_islandora_datastream_alter" when modifying via set magic functions.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_MODIFIED_HOOK], 'Called ISLANDORA_DATASTREAM_MODIFIED_HOOK when modifying via set magic functions.');
+    // Test blocking modifying.
+    try {
+      $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = FALSE;
+      $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = FALSE;
+      $ds->label = 'block';
+      $this->fail('Blocked modify should throw an Exception.');
+    }
+    catch(Exception $e) {
+      $this->pass('Modify blocked and exception thrown.');
+      $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_MODIFIED_HOOK], 'Called "hook_islandora_datastream_alter" when blocking modifying via set magic functions.');
+      $this->assertFALSE($_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_MODIFIED_HOOK], 'Called ISLANDORA_DATASTREAM_MODIFIED_HOOK when blocking modifying via set magic functions.');
+    }
+    $this->repository->purgeObject($object->id);
+    // Test purging with FedoraRepository::purgeObject().
+    $object = $this->repository->constructObject('test:testPurgedDatastreamHook');
+    $this->repository->ingestObject($object);
+    $ds = $object->constructDatastream('TEST');
+    $object->ingestDatastream($ds);
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_PURGED_HOOK] = FALSE;
+    $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_PURGED_HOOK] = FALSE;
+    $object->purgeDatastream($ds->id);
+    $this->assert($_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_PURGED_HOOK], 'Called "hook_islandora_datastream_alter" when purging via FedoraObject::purgeDatastream.');
+    $this->assert($_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_PURGED_HOOK], 'Called ISLANDORA_DATASTREAM_PURGED_HOOK when purging via FedoraObject::purgeDatastream.');
+    $this->repository->purgeObject($object->id);
+  }
+
+}

tests/islandora_test.info

@@ -0,0 +1,6 @@
+name = Islandora Test Module
+description = Tests Hooks. Do not enable.
+core = 7.x
+package = Testing
+hidden = TRUE
+dependencies[] = islandora

tests/islandora_test.module

@@ -0,0 +1,152 @@
+<?php
+
+/**
+ * @file
+ * Implements hooks that get tested by islandora_hooks.test
+ */
+
+/**
+ * Implements hook_islandora_object_alter().
+ */
+function islandora_hooks_test_islandora_object_alter(AbstractFedoraObject $object, array &$context) {
+  switch ($context['action']) {
+    case 'ingest':
+      if ($object->id == 'test:testIngestedObjectHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_INGESTED_HOOK] = TRUE;
+        if ($object->label == 'block') {
+          $context['block'] = TRUE;
+        }
+      }
+      break;
+
+    case 'modify':
+      if ($object->id == 'test:testModifiedObjectHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_MODIFIED_HOOK] = TRUE;
+        if (isset($context['params']['label']) && $context['params']['label'] == 'block') {
+          $context['block'] = TRUE;
+        }
+      }
+      elseif ($object->id == 'test:testPurgedObjectHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = TRUE;
+        if (isset($context['params']['label']) && $context['params']['label'] == 'block') {
+          $context['block'] = TRUE;
+        }
+        elseif (isset($context['params']['label']) && $context['params']['label'] == 'delete') {
+          $context['delete'] = TRUE;
+        }
+      }
+      break;
+
+    case 'purge':
+      if ($object->id == 'test:testPurgedObjectHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_OBJECT_PURGED_HOOK] = TRUE;
+        if ($object->label == 'block') {
+          $context['block'] = TRUE;
+        }
+        elseif ($object->label == 'delete') {
+          $context['delete'] = TRUE;
+        }
+      }
+      break;
+  }
+}
+
+/**
+ * Implements hook_islandora_object_alter().
+ */
+function islandora_hooks_test_islandora_datastream_alter(AbstractFedoraObject $object, AbstractFedoraDatastream $datastream, array &$context) {
+  switch ($context['action']) {
+    case 'ingest':
+      if ($object->id == 'test:testIngestedDatastreamHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_INGESTED_HOOK] = TRUE;
+        if ($datastream->label == 'block') {
+          $context['block'] = TRUE;
+        }
+      }
+      break;
+
+    case 'modify':
+      if ($object->id == 'test:testModifiedDatastreamHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = TRUE;
+        if (isset($context['params']['dsLabel']) && $context['params']['dsLabel'] == 'block') {
+          $context['block'] = TRUE;
+        }
+      }
+      elseif ($object->id == 'test:testPurgedDatastreamHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_PURGED_HOOK] = TRUE;
+        if (isset($context['params']['dsLabel']) && $context['params']['dsLabel'] == 'block') {
+          $context['block'] = TRUE;
+        }
+        elseif (isset($context['params']['dsLabel']) && $context['params']['dsLabel'] == 'delete') {
+          $context['delete'] = TRUE;
+        }
+      }
+      break;
+
+    case 'purge':
+      if ($object->id == 'test:testPurgedDatastreamHook') {
+        $_SESSION['islandora_hooks']['alter'][ISLANDORA_DATASTREAM_PURGED_HOOK] = TRUE;
+        if ($datastream->label == 'block') {
+          $context['block'] = TRUE;
+        }
+        elseif ($datastream->label == 'delete') {
+          $context['delete'] = TRUE;
+        }
+      }
+      break;
+  }
+}
+
+/**
+ * Implements hook_islandora_object_ingested().
+ */
+function islandora_hooks_test_islandora_object_ingested(FedoraObject $object) {
+  if ($object->id == 'test:testIngestedObjectHook') {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_INGESTED_HOOK] = TRUE;
+  }
+}
+
+/**
+ * Implements hook_islandora_object_modified().
+ */
+function islandora_hooks_test_islandora_object_modified(FedoraObject $object) {
+  if ($object->id == 'test:testModifiedObjectHook') {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_MODIFIED_HOOK] = TRUE;
+  }
+}
+
+/**
+ * Implements hook_islandora_object_purged().
+ */
+function islandora_hooks_test_islandora_object_purged($pid) {
+  if ($pid == 'test:testPurgedObjectHook') {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_OBJECT_PURGED_HOOK] = TRUE;
+  }
+}
+
+/**
+ * Implements hook_islandora_datastream_ingested().
+ */
+function islandora_hooks_test_islandora_datastream_ingested(FedoraObject $object, FedoraDatastream $datastream) {
+  if ($object->id == 'test:testIngestedDatastreamHook' && $datastream->id == "TEST") {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_INGESTED_HOOK] = TRUE;
+  }
+}
+
+/**
+ * Implements hook_islandora_datastream_modified().
+ */
+function islandora_hooks_test_islandora_datastream_modified(FedoraObject $object, FedoraDatastream $datastream) {
+  if ($object->id == 'test:testModifiedDatastreamHook' && $datastream->id == "TEST") {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_MODIFIED_HOOK] = TRUE;
+  }
+}
+
+/**
+ * Implements hook_islandora_datastream_purged().
+ */
+function islandora_hooks_test_islandora_datastream_purged(FedoraObject $object, $dsid) {
+  if ($object->id == 'test:testPurgedDatastreamHook' && $dsid == "TEST") {
+    $_SESSION['islandora_hooks']['hook'][ISLANDORA_DATASTREAM_PURGED_HOOK] = TRUE;
+  }
+}

tests/web_test_case.inc

@@ -0,0 +1,124 @@
+<?php
+
+/**
+ * @file
+ * Defines the class IslandoraWebTestCase, which allows tests to access Fedora.
+ */
+
+class IslandoraWebTestCase extends DrupalWebTestCase {
+
+  /**
+   * Sets up the Drupal filter to access this test Drupal instances database.
+   *
+   * @see DrupalWebTestCase::setUp()
+   */
+  public function setUp() {
+    $args = func_get_args();
+    $args = (isset($args[0]) && is_array($args[0])) ? $args[0] : $args;
+    // Always enable islandora.
+    $args[] = 'islandora';
+    parent::setUp($args);
+    $this->configuration = $this->getTestConfiguration();
+    if ($this->configuration['use_drupal_filter']) {
+      $this->backUpDrupalFilter();
+      $this->setUpDrupalFilter();
+    }
+    $this->createAdminUser();
+  }
+
+  /**
+   * Parses and returns the settings from the test configuration file.
+   *
+   * If no install specific test_config.ini file is found, it will use the
+   * assumed default configs found in default.test_config.ini.
+   *
+   * @return array
+   *   The test configuration.
+   *
+   * @see parse_ini_file()
+   */
+  protected function getTestConfiguration() {
+    $path = drupal_get_path('module', 'islandora');
+    if (file_exists("$path/tests/test_config.ini")) {
+      $this->pass('Using custom test configuration.');
+      return parse_ini_file("$path/tests/test_config.ini");
+    }
+    elseif (file_exists("$path/tests/default.test_config.ini")) {
+      $this->pass('Using default test configuration.');
+      return parse_ini_file("$path/tests/default.test_config.ini");
+    }
+    throw new Exception('Required default.test_config.ini/test_config.ini file not found');
+  }
+
+  /**
+   * Stores the content of the Drupal Filter for later restoration.
+   */
+  protected function backUpDrupalFilter() {
+    if (file_exists($this->configuration['drupal_filter_file'])) {
+      $this->originalDrupalFilterContent = file_get_contents($this->configuration['drupal_filter_file']);
+    }
+    else {
+      throw new Exception('Failed to find the required Drupal Filter configuration file.');
+    }
+  }
+
+  /**
+   * Sets up a drupal filter that can read for the tests users table.
+   */
+  protected function setUpDrupalFilter() {
+    $connection_info = Database::getConnectionInfo('default');
+    $drupal_filter_dom = new DomDocument();
+    $drupal_filter_dom->loadXML($this->originalDrupalFilterContent);
+    $drupal_filter_xpath = new DOMXPath($drupal_filter_dom);
+    $server = $connection_info['default']['host'];
+    $dbname = $connection_info['default']['database'];
+    $user = $connection_info['default']['username'];
+    $password = $connection_info['default']['password'];
+    $port = $connection_info['default']['port'] ? $connection_info['default']['port'] : '3306';
+    $prefix = $connection_info['default']['prefix']['default'];
+    $results = $drupal_filter_xpath->query("/FilterDrupal_Connection/connection[@server='$server' and @dbname='$dbname' and @user='$user' and @password='$password' and @port='$port']/sql");
+    $results->item(0)->nodeValue = "SELECT DISTINCT u.uid AS userid, u.name AS Name, u.pass AS Pass, r.name AS Role FROM ({$prefix}users u LEFT JOIN {$prefix}users_roles ON u.uid={$prefix}users_roles.uid) LEFT JOIN {$prefix}role r ON r.rid={$prefix}users_roles.rid WHERE u.name=? AND u.pass=?;";
+    file_put_contents($this->configuration['drupal_filter_file'], $drupal_filter_dom->saveXML());
+  }
+
+  /**
+   * Creates the a full fedora admin user with a repository connection.
+   */
+  protected function createAdminUser() {
+    $this->admin = new stdClass();
+    $this->admin->uid = 1;
+    $this->admin->name = $this->configuration['admin_user'];
+    $this->admin->pass = $this->configuration['admin_pass'];
+    $url = variable_get('islandora_base_url', $this->configuration['fedora_url']);
+    $connection = islandora_get_tuque_connection($this->admin, $url);
+    $this->admin->repository = $connection->repository;
+    return $this->admin;
+  }
+  /**
+   * Stores the content of the Drupal Filter for later restoration.
+   */
+  protected function restoreDrupalFilter() {
+    $file = $this->configuration['drupal_filter_file'];
+    if (isset($this->originalDrupalFilterContent)) {
+      file_put_contents($file, $this->originalDrupalFilterContent);
+    }
+    elseif (file_exists($file)) {
+      // Remove if there was never an original.
+      drupal_unlink($file);
+    }
+  }
+
+  /**
+   * Restores the original Drupal filter, frees any allocated resources.
+   *
+   * @see DrupalWebTestCase::tearDown()
+   */
+  public function tearDown() {
+    if ($this->configuration['use_drupal_filter']) {
+      $this->restoreDrupalFilter();
+    }
+    unset($this->admin);
+    unset($this->configuration);
+    parent::tearDown();
+  }
+}

theme/islandora-object-edit.tpl.php

@@ -1,30 +1,8 @@
 <?php
 
-/*
- * islandora-object-edit.tpl.php
- * 
- *
- * 
- * This file is part of Islandora.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with the program.  If not, see <http ://www.gnu.org/licenses/>.
- */
-?>
-<?php
-
-/* 
- * this is a template for objects that do not have a module to registered to build their display.
+/**
+ * @file
+ * The default manage datastreams view for objects.
  *
  * islandora_object is a fedora tuque Object
  *    $object->label
@@ -32,20 +10,11 @@
  * to get the contents of a datastream
  *    $object['dsid']->content
  *
- * $dublin_core is a Dublin_Core object
+ * $dublin_core is a DublinCore object
  * which is an array of elements, such as dc.title
- * and each element has an array of values.  dc.title can have none, one or many titles
+ * and each element has an array of values.
+ * dc.title can have none, one or many titles
  * this is the case for all dc elements.
- * 
- * 
- * 
  */
-
-//dsm($object);
-
-drupal_set_title($islandora_object->label);
-//print($islandora_object->label . ' ' . $islandora_object->id);
-  
-print ($variables['datastream_table']);
 ?>
-
+<?php print (theme_table($variables['datastream_table'])); ?>

theme/islandora-object.tpl.php

@@ -1,30 +1,11 @@
 <?php
 
-/*
- * islandora-object.tpl.php
+/**
+ * @file
+ * The default object view.
  *
- *
- * 
- * This file is part of Islandora.
- * 
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with the program.  If not, see <http ://www.gnu.org/licenses/>.
- */
-?>
-<?php
-
-/* 
- * this is a template for objects that do not have a module to registered to build their display.
+ * This is a template for objects that do not have a module to registered to
+ * build their display.
  *
  * islandora_object is a fedora tuque Object
  *    $object->label             - The label for this object.
@@ -39,7 +20,7 @@
  * to test if a datastream exists isset($object['dsid'])
  *
  * to iterate over datastreams:
- * foreach($object as $ds) {
+ * foreach ($object as $ds) {
  *   $ds->label, etc
  * }
  *
@@ -57,40 +38,38 @@
  *    $ds->size              - The size of the datastream
  *    $ds->checksum          - The checksum of the datastream
  *    $ds->checksumType      - The type of checksum for the datastream.
- *    $ds->createdDate->format("Y-m-d") - The created date with an option to use a format of your choice
+ *    $ds->createdDate->format("Y-m-d") - The created date with an option to use
+ *                                        a format of your choice
  *    $ds->content           - The content of the datastream
- *    $ds->url               - The URL. This is only valid for R and E datastreams. 
+ *    $ds->url               - The URL. This is only valid for R and E
+ *                             datastreams.
  *
- * $dublin_core is a Dublin_Core object
+ * $dublin_core is a DublinCore object
  * which is an array of elements, such as dc.title
- * and each element has an array of values.  dc.title can have none, one or many titles
+ * and each element has an array of values.
+ * dc.title can have none, one or many titles
  * this is the case for all dc elements.
  *
  *
  *
  * we can get a list of datastreams by doing
- * foreach ($object as $ds){
+ * foreach ($object as $ds) {
  * do something here
  * }
- * 
  */
 ?>
-<?php if(isset($islandora_object_label)): ?>
-  <?php drupal_set_title("$islandora_object_label"); ?>
-<?php endif; ?>
-
 <div class="islandora-object islandora">
-  <h2>Details</h2>
+  <h2><?php print t('Details'); ?></h2>
   <dl class="islandora-object-tn">
     <dt>
-      <?php if(isset($variables['islandora_thumbnail_url'])): ?>
-        <?php print('<img src = "'.$variables['islandora_thumbnail_url'].'"/>'); ?></dt>
+      <?php if (isset($variables['islandora_thumbnail_url'])): ?>
+        <img src="<?php print $variables['islandora_thumbnail_url']; ?>"/></dt>
       <?php endif; ?>
     <dd></dd>
   </dl>
     <dl class="islandora-inline-metadata islandora-object-fields">
       <?php $row_field = 0; ?>
-      <?php foreach($dc_array as $key => $value): ?>
+      <?php foreach ($dc_array as $key => $value): ?>
         <dt class="<?php print $value['class']; ?><?php print $row_field == 0 ? ' first' : ''; ?>">
           <?php print $value['label']; ?>
         </dt>
@@ -99,26 +78,26 @@
         </dd>
       <?php $row_field++; ?>
       <?php endforeach; ?>
-      <?php if($parent_collections): ?>
+      <?php if ($parent_collections): ?>
         <dt>Collections</dt>
         <dd>
-          <?php foreach($parent_collections as $key => $value): ?>
-            <div><?php print $value['label_link'] ?></div>
+          <?php foreach ($parent_collections as $collection): ?>
+            <div><?php print l($collection->label, "islandora/object/{$collection->id}"); ?></div>
           <?php endforeach; ?>
         </dd>
       <?php endif; ?>
     </dl>
 </div>
 <fieldset class="collapsible collapsed" style="display: block; clear:both">
-<legend><span class="fieldset-legend">File Details</span></legend>
+<legend><span class="fieldset-legend"><?php print t('File details'); ?></span></legend>
   <div class="fieldset-wrapper">
 <table>
   <tr>
-    <th>ID</th>
-    <th>Label</th>
-    <th>Size</th>
-    <th>Mimetype</th>
-    <th>Created</th> 
+    <th><?php print t('ID'); ?></th>
+    <th><?php print t('Label'); ?></th>
+    <th><?php print t('Size'); ?></th>
+    <th><?php print t('Mimetype'); ?></th>
+    <th><?php print t('Created'); ?></th>
   </tr>
   <?php foreach($datastreams as $key => $value): ?>
   <tr>

theme/theme.inc

@@ -1,19 +1,20 @@
 <?php
 
 /**
- * preprocess the edit template
- * @global string $base_url
- * @param array $variables
- *   theme variables for the edit template
+ * @file
+ * This file contains all theme and preprocess functions.
  */
-function islandora_preprocess_islandora_default_edit(&$variables) {
-  $islandora_object = $variables['islandora_object'];
+
+/**
+ * Implements hook_preprocess_theme().
+ */
+function islandora_preprocess_islandora_default_edit(array &$variables) {
   global $base_url;
+  $islandora_object = $variables['islandora_object'];
   $datastreams = array();
   $variables['islandora_editmetadata_url'] = $base_url . '/islandora/edit_form/' . $islandora_object->id;
   module_load_include('inc', 'islandora', 'includes/datastream');
   module_load_include('inc', 'islandora', 'includes/utilities');
-  // $variables['add_datastream_form'] = drupal_get_form('islandora_add_datastream_form', $islandora_object->id);
   $header = array(
     array('data' => t('ID')),
     array('data' => t('Label')),
@@ -21,42 +22,69 @@ function islandora_preprocess_islandora_default_edit(&$variables) {
     array('data' => t('Mime type')),
     array('data' => t('Size')),
     array('data' => t('Operations'), 'colspan' => '3'),
-      //array('data' => t('Delete')),
   );
   $table_attributes = array('class' => array('manage-datastreams'));
   $rows = array();
   foreach ($islandora_object as $ds) {
     $rows[] = array(
-      array('class' => 'datastream-id', 'data' => l($ds->id, islandora_datastream_get_url($ds, 'view'))),
-      array('class' => 'datastream-label', 'data' => $ds->label),
-      array('class' => 'datastream-control', 'data' => islandora_control_group_to_human_readable($ds->controlGroup)),
-      array('class' => 'datastream-mime', 'data' => $ds->mimeType),
-      array('class' => 'datastream-size', 'data' => islandora_datastream_get_human_readable_size($ds)),
-      array('class' => 'datastream-download', 'data' => l(t('download'), islandora_datastream_get_url($ds, 'download'))),
-      array('class' => 'datstream-edit', 'data' => islandora_datastream_edit_get_link($islandora_object, $ds->id)),
-      array('class' => 'datastream-delete', 'data' => islandora_datastream_get_delete_link($ds)),
+      array(
+        'class' => 'datastream-id',
+        'data' => l($ds->id, islandora_datastream_get_url($ds, 'view')),
+      ),
+      array(
+        'class' => 'datastream-label',
+        'data' => $ds->label,
+      ),
+      array(
+        'class' => 'datastream-control',
+        'data' => islandora_control_group_to_human_readable($ds->controlGroup),
+      ),
+      array(
+        'class' => 'datastream-mime',
+        'data' => $ds->mimeType,
+      ),
+      array(
+        'class' => 'datastream-size',
+        'data' => islandora_datastream_get_human_readable_size($ds),
+      ),
+      array(
+        'class' => 'datastream-download',
+        'data' => l(t('download'), islandora_datastream_get_url($ds, 'download')),
+      ),
+      array(
+        'class' => 'datstream-edit',
+        'data' => islandora_datastream_edit_get_link($ds),
+      ),
+      array(
+        'class' => 'datastream-delete',
+        'data' => islandora_datastream_get_delete_link($ds),
+      ),
     );
   }
   $caption = $islandora_object->label . ' - ' . $islandora_object->id;
-  $table = array('colgroups' => NULL, 'sticky' => TRUE, 'empty' => 'Error loading datastreams', 'caption' => $caption, 'header' => $header, 'rows' => $rows, 'attributes' => $table_attributes);
-  $variables['datastream_table'] = theme_table($table);
+  $table = array(
+    'colgroups' => NULL,
+    'sticky' => TRUE,
+    'empty' => 'Error loading datastreams',
+    'caption' => $caption,
+    'header' => $header,
+    'rows' => $rows,
+    'attributes' => $table_attributes,
+  );
+  $variables['datastream_table'] = $table;
 }
 
-
 /**
- * preprocess for the default view template
- * @global string $base_url
- * @param array $variables
+ * Implements hook_preprocess_theme().
  */
 function islandora_preprocess_islandora_default(&$variables) {
   drupal_add_js('misc/form.js');
   drupal_add_js('misc/collapse.js');
   $islandora_object = $variables['islandora_object'];
-  module_load_include('inc', 'islandora', 'includes/islandora_dublin_core');
   module_load_include('inc', 'islandora', 'includes/utilities');
   module_load_include('inc', 'islandora', 'includes/datastream');
 
-  $variables['parent_collections'] = islandora_datastream_get_parents($islandora_object);
+  $variables['parent_collections'] = islandora_get_parents_from_rels_ext($islandora_object);
 
   $datastreams = array();
   foreach ($islandora_object as $ds) {
@@ -72,17 +100,19 @@ function islandora_preprocess_islandora_default(&$variables) {
       $datastreams[$id]['mimetype'] = $ds->mimetype;
       $datastreams[$id]['size'] = islandora_datastream_get_human_readable_size($ds);
       $datastreams[$id]['created_date'] = $ds->createdDate->format("Y-m-d");
-      $datastreams[$id]['class'] = strtolower(preg_replace('/[^A-Za-z0-9]/', '-', $id));
+      $datastreams[$id]['class'] = drupal_strtolower(preg_replace('/[^A-Za-z0-9]/', '-', $id));
+    }
+    catch (RepositoryException $e) {
+
     }
-    catch (RepositoryException $e) {}
   }
   $variables['datastreams'] = $datastreams;
   try {
     $dc = $islandora_object['DC']->content;
-    //$dc_xml = simplexml_load_string($dc);
-    $dc_object = Dublin_Core::import_from_xml_string($dc);
-    $dc_array = $dc_object->as_formatted_array();
-  } catch (Exception $e) {
+    $dc_object = DublinCore::importFromXMLString($dc);
+    $dc_array = $dc_object->asArray();
+  }
+  catch (Exception $e) {
     drupal_set_message(t('Error retrieving object %s %t', array('%s' => $islandora_object->id, '%t' => $e->getMessage())), 'error', FALSE);
   }
   $variables['dc_array'] = isset($dc_array) ? $dc_array : array();

xml/islandora_collection_policy.xml

@@ -0,0 +1,21 @@
+<collection_policy name="" xmlns="http://www.islandora.ca" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.islandora.ca http://syn.lib.umanitoba.ca/collection_policy.xsd">
+    <content_models>
+        <content_model dsid="ISLANDORACM" name="Collection" namespace="islandora:collection" pid="islandora:collectionCModel"/>
+    </content_models>
+    <search_terms>
+        <term field="dc.title">dc.title</term>
+        <term field="dc.creator">dc.creator</term>
+        <term default="true" field="dc.description">dc.description</term>
+        <term field="dc.date">dc.date</term>
+        <term field="dc.identifier">dc.identifier</term>
+        <term field="dc.language">dc.language</term>
+        <term field="dc.publisher">dc.publisher</term>
+        <term field="dc.rights">dc.rights</term>
+        <term field="dc.subject">dc.subject</term>
+        <term field="dc.relation">dc.relation</term>
+        <term field="dcterms.temporal">dcterms.temporal</term>
+        <term field="dcterms.spatial">dcterms.spatial</term>
+        <term field="fgs.DS.first.text">Full text</term>
+    </search_terms>
+    <relationship>isMemberOfCollection</relationship>
+</collection_policy>