islandora/fedora_repository.module

<?php

// $Id$

/*
 * Created on Aug 10, 2007
 *
 * To change the template for this generated file go to
 * Window - Preferences - PHPeclipse - PHP - Code Templates
 */

/**
 * Drupal hook for admin form
 * fedora_repository_name is the name of the top level collection this module will query
 * fedora_repository_pid is the name of the top level pid.
 * Stores this info in the drupal variables table.
 * the name and pid can also be passed as url parameters
 */
function fedora_repository_admin() {
  module_load_include('inc', 'fedora_repository', 'formClass');
  $adminForm = new formClass();
  return $adminForm->createAdminForm();
}

function fedora_repository_admin_settings_submit($form, $form_values) {
  drupal_set_message("Custom form handler.");
}

/**
 * drupal hook
 * calls the fedora_repositorys_admin form
 */
function fedora_repository_menu() {
  module_load_include('inc', 'fedora_repository', 'formClass');
  $adminMenu = new formClass();
  return $adminMenu->createMenu();
}

/**
 * drupal hook to show help
 */
function fedora_repository_help($path, $arg) {
  switch ($path) {
    case 'admin/modules#description' :
      return t('Grabs a list of items from a collection in Drupal that are presented on the home page.');
    case 'node/add#fedora_repository' :
      return t('Use this page to grab a list of items from a Fedora collection.');
  }
}

function fedora_repository_purge_object($pid = NULL, $name = NULL) {
  if (!user_access('purge objects and datastreams')) {
    drupal_set_message(t('You do not have access to add a datastream to this object.'), 'error');
    return '';
  }
  if ($pid == NULL) {
    drupal_set_message(t('You must specify an object pid to purge an object.'), 'error');
    return '';
  }
  $output = t('Are you sure you wish to purge object %name %pid!<br /><b>This cannot be undone</b><br />',
                  array(
                      '%name' => $name,
                      '%pid' => $pid)
  );
  $output .= drupal_get_form('fedora_repository_purge_object_form', $pid);
  return $output;
}

function fedora_repository_collection_view($pid = NULL, $collection = NULL, $pageNumber = NULL) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  global $user;
  if (!fedora_repository_access(OBJECTHELPER :: $OBJECT_HELPER_VIEW_FEDORA, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or access to Fedora denied."), 'error');
    return ' ';
  }

  $objectHelper = new ObjectHelper();
  if ($pid == NULL) {
    $pid = variable_get('fedora_repository_pid', 'islandora:top');
  }

  $content = '';

  module_load_include('inc', 'fedora_repository', 'CollectionClass');
  $collectionClass = new CollectionClass();
  $results = $collectionClass->getRelatedItems($pid, NULL);
  $content .= $objectHelper->parseContent($results, $pid, $dsId, $collection, $pageNumber);

  return $content;
}

function fedora_repository_ingest_object($collection_pid=NULL, $collection_label = NULL, $content_model = NULL) {
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');
  if (!user_access('ingest new fedora objects')) {
    drupal_set_message(t('You do not have permission to ingest.'), 'error');
    return '';
  }

  if (!validPid($collection_pid)) {
    if (validPid(urldecode($collection_pid))) {
      $collection_pid = urldecode($collection_pid);
    } else {
      drupal_set_message(t("This collection PID $collection_pid is not valid"), 'error');
      return ' ';
    }
    
  }

  if ($collection_pid == NULL) {
    drupal_set_message(t('You must specify a collection object pid to ingest an object.'), 'error');
    return '';
  }
  $output = drupal_get_form('fedora_repository_ingest_form', $collection_pid, $collection_label, $content_model);

  return $output;
}

function fedora_repository_ingest_form_submit($form, &$form_state) {
  //only validate the form if the submit button was pressed (other buttons may be used for AHAH
  if ($form_state['clicked_button']['#id'] == 'edit-submit') {
    global $base_url;
    module_load_include('inc', 'fedora_repository', 'CollectionClass');
    module_load_include('inc', 'fedora_repository', 'CollectionPolicy');
    module_load_include('inc', 'fedora_repository', 'ContentModel');

    $contentModelPid = ContentModel::getPidFromIdentifier($form_state['values']['models']);
    $contentModelDsid = ContentModel::getDSIDFromIdentifier($form_state['values']['models']);
    $err = TRUE;
    $redirect = TRUE;
    if (($cp = CollectionPolicy::loadFromCollection($form_state['values']['collection_pid'])) !== FALSE) {
      $relationship = $cp->getRelationship();

      if (($cm = ContentModel::loadFromModel($contentModelPid, $contentModelDsid)) !== FALSE) {
        $pid = $cp->getNextPid($contentModelDsid);
        global $user;
        $form_state['values']['user_id'] = $user->name;
        $form_state['values']['pid'] = $pid;
        $form_state['values']['content_model_pid'] = $contentModelPid;
        $form_state['values']['relationship'] = $relationship;

        $err = (!$cm->execFormHandler($form_state['values']));

        $_SESSION['fedora_ingest_files'] = ''; //empty this variable

        $attr = $cm->getIngestFormAttributes();
        $redirect = $attr['redirect'];

        if ($redirect) {
          $form_state['storage'] = NULL;
        }
      }
    }

    if ($redirect) {
      $form_state['redirect'] = ($err) ? ' ' : $base_url . "/fedora/repository/{$form_state['values']['collection_pid']}";
    }
  }
}

function fedora_repository_ingest_form_validate($form, &$form_state) {
  //only validate the form if the submit button was pressed (other buttons may be used for AHAH
  if ($form_state['clicked_button']['#id'] == 'edit-submit') {
    switch ($form_state['storage']['step']) {
      case 1:
        $form_state['storage']['step']++;
        $form_state['rebuild'] = TRUE;
        break;

      case 2:

        // Get the uploaded file.
        $validators = array();

        if (!empty($_FILES['files']['name']['ingest-file-location'])) {
          $fileObject = file_save_upload('ingest-file-location', $validators);

          file_move($fileObject->filepath, 0, 'FILE_EXISTS_RENAME');
          $form_state['values']['ingest-file-location'] = $fileObject->filepath;
        }

        if (file_exists($form_state['values']['ingest-file-location'])) {
          module_load_include('inc', 'fedora_repository', 'ContentModel');
          module_load_include('inc', 'fedora_repository', 'MimeClass');

          $file = $form_state['values']['ingest-file-location'];

          $contentModelPid = ContentModel::getPidFromIdentifier($form_state['values']['models']);
          $contentModelDsid = ContentModel::getDSIDFromIdentifier($form_state['values']['models']);

          if (($cm = ContentModel::loadFromModel($contentModelPid, $contentModelDsid)) !== FALSE) {
            $allowedMimeTypes = $cm->getMimetypes();

            $mimetype = new MimeClass();
            $dformat = $mimetype->getType($file);

            if (!empty($file)) {
              if (!in_array($dformat, $allowedMimeTypes)) {
                form_set_error('ingest-file-location', t('The uploaded file\'s mimetype (' . $dformat . ') is not associated with this Content Model. The allowed types are ' .
                                implode(' ', $allowedMimeTypes)));
                file_delete($file);
                return;
              } elseif (!$cm->execIngestRules($file, $dformat)) {
                drupal_set_message(t('Error following Content Model Rules'), 'error');
                foreach (ContentModel::$errors as $err) {
                  drupal_set_message($err, 'error');
                }
              }
            }
          }
        }
        $form_state['rebuild'] = FALSE;
        break;
    }
  }
}

function fedora_repository_ingest_form(&$form_state, $collection_pid, $collection_label = NULL, $content_model = NULL) {
  module_load_include('inc', 'fedora_repository', 'formClass');
  //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
  // For the sake of easily maintaining the module in different core versions create our own form_values variable.
  if (empty($form_state['storage']['step'])) {
    $form_state['storage']['step'] = 1;
  }
  $ingestForm = new formClass();
  $form_state['storage']['content_model'] = $content_model;
  $form_state['storage']['collection_pid'] = $collection_pid;
  return $ingestForm->createIngestForm($collection_pid, $collection_label, $form_state);
}

function fedora_repository_purge_object_form(&$form_state, $pid, $collectionPid = NULL) {
  $form['pid'] = array(
      '#type' => 'hidden',
      '#value' => "$pid"
  );

  $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Purge')
  );
  if ($collectionPid == NULL) {
    $collectionPid = $_SESSION['fedora_collection'];
  }
  //  $form['#redirect'] = "fedora/repository/$collectionPid/";
  return $form;
}

function add_stream($collection_pid=NULL, $collectionName=NULL) {
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');
  if (!validPid($collection_pid)) {
    drupal_set_message(t("This PID is not valid!"), 'error');
    return ' ';
  }
  if (!user_access('ingest new fedora objects')) {
    drupal_set_message(t('You do not have permission to ingest.'), 'error');
    return '';
  }
  if ($collection_pid == NULL) {
    drupal_set_message(t('You must specify an collection object pid to ingest an object.'), 'error');
    return '';
  }
  $output .= drupal_get_form('fedora_repository_add_stream_form', $pid);

  return $output;
}

function add_stream_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', 'fedora_repository', 'MimeClass');
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  module_load_include('inc', 'fedora_repository', 'api/fedora_item');
  $pathToModule = drupal_get_path('module', 'fedora_repository');

  $file = $form_state['values']['add-stream-file-location'];

  $pid = $form_state['values']['pid'];
  $dsid = $form_state['values']['stream_id'];
  $dsLabel = $form_state['values']['stream_label'] . substr($file, strrpos($file, '.')); // Add the file extention to the end of the label.;

  $streamUrl = $base_url . '/' . drupal_urlencode($file);

  /* -----------------------------------------------------------------
   * need a better way to get mimetypes
   */
  $mimetype = new MimeClass();
  $dformat = $mimetype->getType($file);
  $controlGroup = "M";
  if ($dformat == 'text/xml') {
    $controlGroup = 'X';
  }
  try {
    $item = new Fedora_Item($pid);
    $item->add_datastream_from_url($streamUrl, $dsid, $dsLabel, $dformat, $controlGroup);

    $object_helper = new ObjectHelper();
    $object_helper->get_and_do_datastream_rules($pid, $dsid, $file);

    file_delete($file);
  } catch (exception $e) {
    drupal_set_message(t($e->getMessage()), 'error');
    return;
  }
  $form_state['rebuild'] = TRUE;
  //$form_state['redirect'] = $base_url."/fedora/repository/$pid";
  //  drupal_goto("http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
}

function add_stream_form(&$form_state, $pid) {
  //module_load_module_load_include('hp', ''Fedora_Repository'', 'config', 'fedora_repository', '');
  module_load_include('inc', 'fedora_repository', 'formClass');
  //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
  $addDataStreamForm = new formClass();
  return $addDataStreamForm->createAddDataStreamForm($pid, $form_state);
}

function add_stream_form_validate($form, &$form_state) {
  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]/", $dsid))) {
    form_set_error('', t('Data stream ID has to start with a letter.'));
    return FALSE;
  }
  if (strlen($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;
  }
  $validators = array(
          //    'file_validate_is_image' => array(),
          //    'file_validate_image_resolution' => array('85x85'),
          //    'file_validate_size' => array(30 * 1024),
  );

  $fileObject = file_save_upload('add-stream-file-location', $validators);

  // Move the uploaded file to Drupal's files directory.
  file_move($fileObject->filepath, 0, 'FILE_EXISTS_RENAME');
  $form_state['values']['add-stream-file-location'] = $fileObject->filepath;
  // TODO: Add error checking here.
  $form_state['rebuild'] = FALSE;
}

function fedora_repository_purge_stream($pid = NULL, $dsId = NULL, $name = NULL) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  global $user;
  if ($pid == NULL || $dsId == NULL) {
    drupal_set_message(t('You must specify an object pid and DataStream ID to purge a datastream'), 'error');
    return ' ';
  }
  if (!fedora_repository_access(OBJECTHELPER :: $PURGE_FEDORA_OBJECTSANDSTREAMS, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or you do not have permission to purge objects."), 'error');
    return ' ';
  }

  $output = t('Are you sure you wish to purge this datastream %name<br />',
                  array(
                      '%name' => $name)
  );
  $output .= drupal_get_form('fedora_repository_purge_stream_form', $pid, $dsId);
  return $output;
}

function fedora_repository_purge_object_form_submit($form, &$form_state) {
  module_load_include('inc', 'fedora_repository', 'ConnectionHelper');
  //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
  $pid = $form_state['values']['pid'];

  $params = array(
      "pid" => $pid,
      "logMessage" => "Purged",
      "force" => ""
  );
  try {
    $soapHelper = new ConnectionHelper();
    $client = $soapHelper->getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
    $object = $client->__soapCall('purgeObject', array(
                $params
                    )
    );
  } catch (exception $e) {
    if (preg_match('/org\.fcrepo\.server\.security\.xacml\.pep\.AuthzDeniedException/',$e->getMessage())) {
      drupal_set_message(t('Error:  Insufficient permissions to purge object.'), 'error');
    } else {
      drupal_set_message(t($e->getMessage()), 'error');
    }
    return;
  }
  if (empty($collectionPid)) {
    $collectionPid = $_SESSION['fedora_collection'];
  }
  $form_state['redirect'] = "fedora/repository/$collectionPid/";
}

function fedora_repository_purge_stream_form(&$form_state, $pid, $dsId) {
  $form['pid'] = array(
      '#type' => 'hidden',
      '#value' => "$pid"
  );
  $form['dsid'] = array(
      '#type' => 'hidden',
      '#value' => "$dsId"
  );
  $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Purge')
  );

  return $form;
}

function fedora_repository_purge_stream_form_submit($form, &$form_state) {
  global $base_url;
  module_load_include('inc', 'fedora_repository', 'api/fedora_item');
  //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
  $pid = $form_state['values']['pid'];
  $item = new Fedora_Item($pid);
  $dsid = $form_state['values']['dsid'];
  try {
    $item->purge_datastream($dsid);
  } catch (exception $e) {
    drupal_set_message(t($e->getMessage()), 'error');
  }
  $form_state['redirect'] = $base_url . "/fedora/repository/$pid";
}

function fedora_repository_replace_stream($pid, $dsId, $dsLabel, $collectionName = NULL) {
  if ($pid == NULL || $dsId == NULL) {
    drupal_set_message(t('You must specify an pid and dsId to replace.'), 'error');
    return '';
  }
  $output .= drupal_get_form('fedora_repository_replace_stream_form', $pid, $dsId, $dsLabel);

  return $output;
}

function fedora_repository_replace_stream_form(&$form_state, $pid, $dsId, $dsLabel) {
  //module_load_module_load_include('hp', ''Fedora_Repository'', 'config', 'fedora_repository', '');
  module_load_include('inc', 'Fedora_Repository', 'formClass');
  //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
  $replaceDataStreamForm = new formClass();
  return $replaceDataStreamForm->createReplaceDataStreamForm($pid, $dsId, $dsLabel, $form_state);
}

function fedora_repository_replace_stream_form_validate($form, &$form_state) {
  // If a file was uploaded, process it.
  if (isset($_FILES['files']) && is_uploaded_file($_FILES['files']['tmp_name']['file'])) {

    // attempt to save the uploaded file
    $file = file_save_upload('file', array(), file_directory_path());

    // set error is file was not uploaded
    if (!$file) {
      form_set_error('file', 'Error uploading file.');
      return;
    }

    $doc = new DOMDocument();
    module_load_include('inc', 'Fedora_Repository', 'MimeClass');
    $mime = new MimeClass();
    if ($mime->getType($file->filepath) == 'text/xml' && !$doc->load($file->filepath)) {
      form_set_error('file', 'Invalid XML format.');
      return;
    }

    // set files to form_state, to process when form is submitted
    $form_state['values']['file'] = $file;
  }
}

function fedora_repository_replace_stream_form_submit($form, &$form_state) {

  $file = $form_state['values']['file'];
  $pid = $form_state['values']['pid'];
  $dsid = $form_state['values']['dsId'];

  // Remove the original file extension from the label and add the new one
  $dsLabel = substr($form_state['values']['dsLabel'], 0, strrpos($form_state['values']['dsLabel'], '.'));
  $dsLabel .= substr($file->filename, strrpos($file->filename, '.')); // Add the file extention to the end of the label.;
  module_load_include('inc', 'Fedora_Repository', 'MimeClass');
  module_load_include('inc', 'Fedora_Repository', 'ObjectHelper');
  module_load_include('inc', 'Fedora_Repository', 'ConnectionHelper');

  $streamUrl = file_create_url($file->filepath);

  /* -----------------------------------------------------------------
   * need a better way to get mimetypes
   */
  $mimetype = new MimeClass();
  $dformat = $mimetype->getType($file->filepath);

  $controlGroup = "M";
  $function = 'modifyDatastreamByReference';
  $params = array(
      'pid' => $pid,
      'dsID' => $dsid,
      'altIDs' => "",
      'dsLabel' => $dsLabel,
      'MIMEType' => $dformat,
      'formatURI' => "URL",
      'dsLocation' => $streamUrl,
      'controlGroup' => "$controlGroup",
      'dsState' => "A",
      'checksumType' => "DISABLED",
      'checksum' => "none",
      'logMessage' => "datastream replaced",
      'force' => FALSE,
  );

  if ($dformat == 'text/xml') {
    $doc = new DOMDocument();
    $doc->load($file->filepath);
    $controlGroup = 'X';
    $function = 'modifyDatastreamByValue';
    $params['dsContent'] = $doc->saveXML();
    unset($params['dsLocation']);
  }

  try {
    $soapHelper = new ConnectionHelper();
    $client = $soapHelper->getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));

    if ($client == NULL) {
      drupal_set_message(t('Error Getting Soap Client.'), 'error');
      return;
    }
    $object = $client->__soapCall($function, array('parameters' => $params));

    // Apply the add datastream rules.
    $object_helper = new ObjectHelper();
    $object_helper->get_and_do_datastream_rules($pid, $dsid, $file->filepath);

    file_delete($file->filepath);
  } catch (exception $e) {
    drupal_set_message(t($e->getMessage()), 'error');
    return;
  }

  drupal_goto('fedora/repository/' . $pid . '/-/' . $dsId);
}

function fedora_repository_edit_qdc_page($pid = NULL, $dsId = NULL) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  global $user;
  if ($pid == NULL || $dsId == NULL) {
    drupal_set_message(t('You must specify an object pid and a Dublin Core DataStream ID to edit metadata'), 'error');
    return ' ';
  }
  if (!fedora_repository_access(OBJECTHELPER :: $EDIT_FEDORA_METADATA, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or you do not have permission to edit meta data for this object."), 'error');
    return ' ';
  }
  $output = drupal_get_form('fedora_repository_edit_qdc_form', $pid, $dsId);

  return $output;
}

function fedora_repository_edit_qdc_form(&$form_state, $pid, $dsId = NULL) {
  module_load_include('inc', 'fedora_repository', 'ContentModel');
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  if ($pid == NULL) {
    drupal_set_message(t('You must specify an object pid!'), 'error');
  }
  global $user;
  if (!fedora_repository_access(OBJECTHELPER :: $EDIT_FEDORA_METADATA, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or you do not have permission to edit meta data for this object."), 'error');
    return ' ';
  }

  module_load_include('inc', 'fedora_repository', 'formClass');
  module_load_include('inc', 'fedora_repository', 'ConnectionHelper');
  $soapHelper = new ConnectionHelper();
  $client = $soapHelper->getSoapClient(variable_get('fedora_soap_url', 'http://localhost:8080/fedora/services/access?wsdl'));
  // Check if there is a custom edit metadata function defined in the content model.


  $output = '';
  if (($cm = ContentModel::loadFromObject($pid)) !== FALSE) {
    $output = $cm->buildEditMetadataForm($pid, $dsId);
  }

  if (empty($output)) {
    // There is no custom function, so just load the standard QDC form.
    $metaDataForm = new formClass();
    //currently we only edit the dc metadata.  If you defined a custom form with a custom handler you are sol for now.
    return $metaDataForm->createMetaDataForm($pid, $dsId, $client);
  }
  return $output;
}

function fedora_repository_edit_qdc_form_validate($form, &$form_state) {

}

/**
 * Check if there is a custom edit metadata function defined in the content model. If so,
 * call it, if not do the submit action for the standard QDC metadata.  Custom forms will
 * need to implement their own equivalent to the FormClass->updateMetaData function
 *
 * @param array $form
 * @param array $form_state
 * @return
 */
function fedora_repository_edit_qdc_form_submit($form, &$form_state) {
  module_load_include('inc', 'fedora_repository', 'ConnectionHelper');
  global $base_url;
  if (strstr($form_state['clicked_button']['#id'], 'edit-submit')) {

    //$client = getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));
    $soap_helper = new ConnectionHelper();
    $client = $soap_helper->getSoapClient(variable_get('fedora_soap_manage_url', 'http://localhost:8080/fedora/services/management?wsdl'));

    // Check the content model for a custom edit metadata form submit function.
    if (isset($form_state['values']['pid'])) {
      module_load_include('inc', 'fedora_repository', 'ContentModel');
      if (($cm = ContentModel::loadFromObject($form_state['values']['pid'])) !== FALSE) {
        return $cm->handleEditMetadataForm($form_state['values']['form_id'], $form_state, $client);
      }
    }

    module_load_include('inc', 'fedora_repository', 'formClass');
    $metaDataForm = new formClass();
    $return_value = $metaDataForm->updateMetaData($form_state['values']['form_id'], $form_state['values'], $client);
    $form_state['redirect'] = $base_url . '/fedora/repository/' . $form_state['values']['pid'];

    return $return_value;
  }
}

/**
 * drupal hook
 * creates a new permission than can be assigned to roles
 */
function fedora_repository_perm() {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  return array(
      OBJECTHELPER::$OBJECT_HELPER_VIEW_FEDORA,
      OBJECTHELPER::$EDIT_FEDORA_METADATA,
      OBJECTHELPER::$PURGE_FEDORA_OBJECTSANDSTREAMS,
      OBJECTHELPER::$ADD_FEDORA_STREAMS,
      OBJECTHELPER::$INGEST_FEDORA_OBJECTS,
      OBJECTHELPER::$EDIT_TAGS_DATASTREAM,
      OBJECTHELPER::$VIEW_DETAILED_CONTENT_LIST,
  );
}

/**
 * drupal hook
 * determines if a user has access to what they are asking for
 *
 *
 */
function fedora_repository_access($op, $node, $account) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  $objectHelper = new ObjectHelper();
  return $objectHelper->fedora_repository_access($op, $node, $account);
}

/**
 * Grabs a stream from fedora sets the mimetype and returns it. $dsID is the
 * datastream id.
 * @param $pid String
 * @param $dsID String
 */
function makeObject($pid, $dsID) {
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');
  if (!validPid($pid)) {
    drupal_set_message(t("Invalid PID!"), 'error');
    return ' ';
  }

  if (!validDsid($dsID)) {
    drupal_set_message(t("Invalid dsID!"), 'error');
    return ' ';
  }

  if ($pid == NULL || $dsID == NULL) {
    drupal_set_message(t("No pid or dsid given to create an object with."));
    return ' ';
  }
  global $user;
  if (!fedora_repository_access(OBJECTHELPER :: $OBJECT_HELPER_VIEW_FEDORA, $pid, $user)) {
    drupal_access_denied();
    return;
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace."), 'error');
    return ' ';
  }

  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  $objectHelper = new ObjectHelper();
  $objectHelper->makeObject($pid, $dsID);
}

/**
 * Sends an ITQL query to the Fedora Resource index (can only communicate with Kowari or mulgara)
 * Reads the pid and datastream id as url parameters.  Queries the collection object for the query
 * if there is no query datastream falls back to the query shipped with the module.
 * @return String
 */
function fedora_repository_get_items($pid = NULL, $dsId = NULL, $collection = NULL, $pageNumber = NULL, $limit = NULL) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');
  global $user;

  if ($pid &!validPid($pid)) {
    drupal_set_message(t("Invalid PID!"), 'error');
    return ' ';
  }

  if ($dsId &!validDsid($dsId)) {
    drupal_set_message(t("Invalid dsID!"), 'error');
    return ' ';
  }
  if (!fedora_repository_access(OBJECTHELPER::$OBJECT_HELPER_VIEW_FEDORA, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or access to Fedora denied!"), 'error');
    return ' ';
  }

  $objectHelper = new ObjectHelper();
  if ($pid == NULL) {
    $pid = variable_get('fedora_repository_pid', 'islandora:top');
  }
  $headers = module_invoke_all('file_download', "/fedora/repository/$pid");
  if (in_array(-1, $headers)) {
    drupal_access_denied();
    exit;
    return ' ';
  }
  if ($dsId != NULL && $dsId != '-') { //if we have a dsID return the stream otherwise query for a collection of objects
    //probably should check pid as well here.
    return makeObject($pid, $dsId);
  }

  $content = '<div id="content-fedora">';

  module_load_include('inc', 'fedora_repository', 'CollectionClass');
  $collectionClass = new CollectionClass();
  //if(!isset($pageNumber)){
  //    $pageNumber=0;
  //}
  //if(!isset($limit)){
  //    $limit=20;
  //}

  $breadcrumbs = array();
  $objectHelper->getBreadcrumbs($pid, $breadcrumbs);
  drupal_set_breadcrumb(array_reverse($breadcrumbs));


  $offset = $limit * $pageNumber;
  $results = $collectionClass->getRelatedObjects($pid, $limit, $offset, NULL); //updated so we can do paging in query not in xslt
  //$results = $collectionClass->getRelatedItems($pid, NULL);
  $content .= $objectHelper->parseContent($results, $pid, $dsId, $collection, $pageNumber);
  //the below is for islandlives we should be able to do this in the xslt though
  //$css=$path.'/stylesheets/container-large.css';
  //drupal_add_css($css);
  return $content . '</div>';
}

function fedora_repository_urlencode_string($str) {
  return htmlentities($str);
}

/**
 * Uses makeobject to get a stream.  Sets the Content Disposition in the header so it suggests a filename
 * and sends it as an attachment.  This should prompt for a download of the object.
 *
 */
function fedora_object_as_attachment($pid, $dsId, $label=NULL, $version=NULL) {
  global $user;
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');

  if ($pid == NULL || $dsId == NULL) {
    drupal_set_message(t("no pid or dsid given to create an object with!"));
    return ' ';
  }

  $objectHelper = new ObjectHelper();
  $objectHelper->makeObject($pid, $dsId, 1, $label, FALSE, $version);
}

function repository_page($pid = NULL, $dsId = NULL, $collection = NULL, $pageNumber = NULL) {
  //do security check at fedora_repository_get_items function as it has to be called there in case
  //someone trys to come in a back door.
  return fedora_repository_get_items($pid, $dsId, $collection, $pageNumber);
}

function repository_service($pid = NULL, $servicePid = NULL, $serviceMethod = NULL) {
  module_load_include('inc','fedora_repository', 'api/fedora_item');
  module_load_include('inc','fedora_repository', 'ObjectHelper');
  global $user;
  if (!fedora_repository_access(OBJECTHELPER::$OBJECT_HELPER_VIEW_FEDORA, $pid, $user)) {
    drupal_set_message(t("You do not have access to Fedora objects within the attempted namespace or access to Fedora denied!"), 'error');
    return ' ';
  }
  if ($pid == NULL) {
    $pid = variable_get('fedora_repository_pid', 'islandora:top');
  }
  $headers = module_invoke_all('file_download', "/fedora/repository/$pid");
  if (in_array(-1, $headers)) {
    drupal_access_denied();
    exit;
    return ' ';
  }

  
  $item = new Fedora_Item($pid); 
  if ($item !== false) 
  {
    echo $item->get_dissemination($servicePid,$serviceMethod);
  }

  exit();

}

//Search Stuff ********************************************************************

/**
 * Implementation of hook_search().
 * sends a search query to fedora fgsearch which is backed by Lucene
 * In our implementation of Fedora we have api-a and api-m locked down
 * to authorized users but at the object level.  We can query Lucene and the
 * RI index to get a list of results without authorization but to view any
 * datastreams users must be authorized.
 *
 */
function fedora_repository_search($op = 'search', $keys = NULL) {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');

  switch ($op) {
    case 'name':
      if (user_access('view fedora collection')) {
        return t('Digital Repository', array('-9'));
      }
    case 'search':
      if (user_access('view fedora collection')) {
        //demo search string ?operation=gfindObjects&indexName=DemoOnLucene&query=fgs.DS.first.text%3Achristmas&hitPageStart=11&hitPageSize=10
        $resultData = NULL;
        $numberOfHitsPerPage = NULL;
        $index = strpos($keys, '.');
        $test = substr($keys, 0, $index + 1);
        $type = NULL;
        if ($index > 0) {
          $index = strpos($keys, ':');
          $type = substr($keys, 0, $index);
          $keys = substr($keys, $index + 1);
        }

        $index = strpos($keys, ':');
        $startPage = substr($keys, 0, $index);
        if ($index > 1) {
          $keys = substr($keys, $index + 1);
        }

        if (!$startPage) {
          $startPage = 1;
        }

        $xmlDoc = NULL;

        $path = drupal_get_path('module', 'fedora_repository');
        $xmlDoc = new DomDocument();
        $xmlDoc->load($path . '/searchTerms.xml');
        $nodeList = $xmlDoc->getElementsByTagName('default');
        if (!$type) {
          //$type = 'dc.description';
          $type = $nodeList->item(0)->nodeValue;
        }
        $nodeList = $xmlDoc->getElementsByTagName('number_of_results');
        $numberOfHitsPerPage = $nodeList->item(0)->nodeValue;

        $indexName = variable_get('fedora_index_name', 'DemoOnLucene');
        $keys = htmlentities(urlencode($keys));
        $searchQuery = NULL;
        if (isset($type) && strcmp($type, ':')) {
          $searchQuery = $type . ':' . $keys;
        } else {
          $searchQuery = $keys;
        }
        //$searchQuery.=" AND (PID:vre OR PID:vre:ref OR PID:demo OR PID:changeme)";

        $searchUrl = variable_get('fedora_fgsearch_url', 'http://localhost:8080/fedoragsearch/rest');
        $searchString = '?operation=gfindObjects&indexName=' . $indexName . '&restXslt=copyXml&query=' . $searchQuery;
        $searchString .= '&hitPageSize=' . $numberOfHitsPerPage . '&hitPageStart=' . $startPage;
        //$searchString = htmlentities(urlencode($searchString));
        $searchUrl .= $searchString;
        $objectHelper = new ObjectHelper();
        $resultData = do_curl($searchUrl);

        $results[] = array(
            array(
                'data' => $resultData,
                'colspan' => 2
            )
        );
        return $results;
      }
  } // switch ($op)
}

/**
 * Implementation of hook_search_page().
 * Display the search results
 */
function fedora_repository_search_page($resultData) {
  $path = drupal_get_path('module', 'fedora_repository');
  $proc = NULL;
  if (!$resultData[0][0]['data']) {
    return ''; //no results
  }
  $text = utf8_encode($resultData[0][0]['data']);

  try {
    $proc = new XsltProcessor();
  } catch (Exception $e) {
    $out[] = array(
        array(
            'data' => $e->getMessage(),
            'colspan' => 2
        )
    );
    return $out;
  }

  //inject into xsl stylesheet
  $proc->setParameter('', 'searchToken', drupal_get_token('search_form')); //token generated by Drupal, keeps tack of what tab etc we are on
  $proc->setParameter('', 'searchUrl', url('search') . '/fedora_repository'); //needed in our xsl
  $proc->setParameter('', 'objectsPage', base_path());
  $proc->setParameter('', 'allowedPidNameSpaces', variable_get('fedora_pids_allowed', 'default: demo: changeme: Islandora: ilives: '));
  $proc->registerPHPFunctions();
  $xsl = new DomDocument();
  $xsl->load($path . '/xsl/results.xsl');
  $quimby = $xsl;
  $input = new DomDocument();
  $didLoadOk = $input->loadXML(utf8_encode($resultData[0][0]['data']));

  if (!$didLoadOk) {
    $results[] = array(
        array(
            'data' => 'Error parsing results',
            'colspan' => 2
        )
    );
  } else {
    $xsl = $proc->importStylesheet($xsl);
    $newdom = $proc->transformToDoc($input);

    $results[] = array(
        array(
            'data' => $newdom->saveHTML(),
            'colspan' => 2
        )
    );
  }

  $header = array(
      array(
          'data' => t('Collection results'),
          NULL,
      ),
      (NULL)
  );

  $output .= theme('table', $header, $results);
  return $output;
}

/**
 * Implementation of hook_form_alter().
 * allows the advanced search form in drupal
 */
function fedora_repository_form_alter(&$form, &$form_state, $form_id) {
  // Advanced node search form
  module_load_include('inc', 'fedora_repository', 'SearchClass');
  $path = drupal_get_path('module', 'fedora_repository');
  if ($form_id == 'search_form' && arg(1) == 'fedora_repository' && user_access('use advanced search')) {
    $default_value = $form['basic']['inline']['keys']['#default_value'];
    $index = strpos($default_value, '.');
    $test = substr($default_value, 0, $index + 1);
    $type = NULL;
    if ($index > 0) {
      $index = strpos($default_value, ':');
      $type = substr($default_value, 0, $index);
      $default_value = substr($default_value, $index + 1);
    }
    $form['basic']['inline']['keys']['#default_value'] = $default_value;
    // Keyword boxes:
    $form['advanced'] = array(
        '#type' => 'fieldset',
        '#title' => t('Advanced search'),
        '#collapsible' => TRUE,
        '#collapsed' => TRUE,
        '#attributes' => array(
            'class' => 'search-advanced'
        ),
    );
    $form['advanced']['keywords'] = array(
        '#prefix' => '<div class="criterion">',
        '#suffix' => '</div>',
    );
    $xmlDoc = new DomDocument();
    $xmlDoc->load($path . '/searchTerms.xml');
    $nodeList = $xmlDoc->getElementsByTagName('term');
    $searchClass = new SearchClass();
    $types = $searchClass->get_search_terms_array();

    $form['advanced']['type'] = array(
        '#type' => 'select',
        '#title' => t('Choose a field to search'),
        '#prefix' => '<div class="criterion">', '#suffix' => '</div>', '#options' => $types,
        '#default_value' => $type,
    );
    $form['advanced']['submit'] = array(
        '#type' => 'submit',
        '#value' => t('Advanced search'),
        '#prefix' => '<div class="action clear-block">', '#suffix' => '</div>',
    );
    $form['#validate'][] = 'fedora_repository_search_validate';
  }
}

/**
 * Implementation of hook_search_validate()
 *
 */
function fedora_repository_search_validate($form, &$form_state) {
  // Initialise using any existing basic search keywords.
  $keys = $form_state['values']['processed_keys'];

  if (isset($form_state['values']['type'])) {
    $type = $form_state['values']['type'];
    if ($type) {
      $keys = $type . ':' . $keys;
    }
  }

  if (!empty($keys)) {
    form_set_value($form['basic']['inline']['processed_keys'], trim($keys), $form_state); //set the form string
  }
}

function fedora_repository_block($op = 'list', $delta = 0, $edit = array()) {
  // The $op parameter determines what piece of information is being requested.
  switch ($op) {
    case 'list':
      // If $op is "list", we just need to return a list of block descriptions.
      // This is used to provide a list of possible blocks to the administrator,
      // end users will not see these descriptions.
      $blocks[0] = array(
          'info' => t('Repository advanced search block'),
      );
      return $blocks;
    case 'configure':
      // If $op is "configure", we need to provide the administrator with a
      // configuration form. The $delta parameter tells us which block is being
      // configured. In this example, we'll allow the administrator to customize
      // the text of the first block.
      $form = array();
      switch ($delta) {
        case 0:
          // All we need to provide is a text field, Drupal will take care of
          // the other block configuration options and the save button.
          $form['fedora_repository_advanced_block_repeat'] = array(
              '#type' => 'textfield',
              '#title' => t('Number of times to repeat search fields'),
              '#size' => 5,
              '#description' => t('The number of times you would like the search blocks to be repeated'),
              '#default_value' => variable_get('fedora_repository_advanced_block_repeat', t('3')),
          );
          break;
      }
      return $form;
    case 'save':
      // If $op is "save", we need to save settings from the configuration form.
      // Since the first block is the only one that allows configuration, we
      // need to check $delta to make sure we only save it.
      switch ($delta) {
        case 0:
          // Have Drupal save the string to the database.
          variable_set('fedora_repository_advanced_block_repeat', $edit['fedora_repository_advanced_block_repeat']);
          break;
      }
    case 'view': default:
      // If $op is "view", then we need to generate the block for display
      // purposes. The $delta parameter tells us which block is being requested.
      switch ($delta) {
        case 0:
          // The subject is displayed at the top of the block. Note that it
          // should be passed through t() for translation.
          $block['subject'] = t('Repository Advanced Search');
          // The content of the block is typically generated by calling a custom
          // function.
          $block['content'] = drupal_get_form('fedora_repository_mnpl_advanced_search_form');
          break;
      }
      return $block;
  }
}

function fedora_repository_theme() {
  return array(
      'fedora_repository_mnpl_advanced_search_form' => array(
          'arguments' => array(
              'form' => NULL,
          ),
      ),
      'fedora_repository_time' => array(
          'arguments' => array(
              'element' => NULL
          ),
      ),
  );
}

/**
 * Get a list of terms from a lucene index
 */
function fedora_repository_list_terms($field, $startTerm = NULL, $displayName = NULL) {
  module_load_include('inc', 'fedora_repository', 'SearchClass');
  $searchClass = new SearchClass();
  return $searchClass->getTerms($field, $startTerm, $displayName);
}

function fedora_repository_mnpl_advanced_search_form() {
  module_load_include('inc', 'fedora_repository', 'SearchClass');
  $searchClass = new SearchClass();
  return $searchClass->build_advanced_search_form();
}

function theme_fedora_repository_mnpl_advanced_search_form($form) {
  module_load_include('inc', 'fedora_repository', 'SearchClass');
  $advanced_search_form = new SearchClass();
  return $advanced_search_form->theme_advanced_search_form($form);
}

function fedora_repository_mnpl_advanced_search($query, $startPage = 1) {
  module_load_include('inc', 'fedora_repository', 'SearchClass');
  $searchClass = new SearchClass();
  return $searchClass->custom_search($query, $startPage);
}

function fedora_repository_mnpl_advanced_search_form_submit($form, &$form_state) {
  $type_id = $form_state['values']['type'];
  $repeat = variable_get('fedora_repository_advanced_block_repeat', t('3'));
  $searchString = $form_state['values']['type1'] . ':' . $form_state['values']['fedora_terms1'];
  if ($form_state['values']['fedora_terms2'] != '') {
    $searchString .=' +' . $form_state['values']['andor1'] . '+' . $form_state['values']['type2'] . ':' . $form_state['values']['fedora_terms2'];
  }
  if ($repeat > 2 && $repeat < 9) {
    for ($i = 3; $i < $repeat + 1; $i++) {
      $t = $i - 1;
      if ($form_state['values']["fedora_terms$i"] != '') {
        $searchString .= '+' . $form_state['values']["andor$t"] . '+' . $form_state['values']["type$i"] . ':' . $form_state['values']["fedora_terms$i"];
      }
    }
  }
  drupal_goto("fedora/repository/mnpl_advanced_search/$searchString");
}

function fedora_repository_install_demos_page() {
  $output = drupal_get_form('fedora_repository_demo_objects_form');
  return $output;
}

function fedora_repository_demo_objects_form() {
  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  module_load_include('inc', 'fedora_repository', 'api/fedora_item');
  $form = array();
  $existing_demos = array();

  $form['install_demos'] = array(
      '#title' => t('Islandora Demo Collections'),
      '#type' => 'fieldset',
      '#description' => t('Install demo image and document collections and content models.'),
  );
  $demo_objects = array();
  // Check if the top-level islandora collection exists. If not, display a button to ingest.

  $form['install_demos']['demo_collections'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Collections to ingest'),
      '#options' => array(),
      '#description' => t('Choose which demo collections you would like ingested into the repository.'),
  );

  foreach (array(
'islandora:collectionCModel' => 'Islandora default content models',
 'islandora:top' => 'Islandora top-level collection',
 'islandora:demos' => 'Islandora demos collection',
 'islandora:largeimages' => 'Sample large image content model (requires <a href="http://sourceforge.net/projects/djatoka/">Djatoka</a> and <a href="http://www.kakadusoftware.com/index.php?option=com_content&task=view&id=26&Itemid=22">Kakadu</a>.)',
  )
  as $available_demo => $available_demo_desc) {
    try {
      $demo_objects[$available_demo] = new Fedora_Item($available_demo);
    } catch (exception $e) {
      
    }

    if (empty($demo_objects[$available_demo]->objectProfile)) {
      //The demo objects collection does not exist in the repository, display a button to ingest them.
      $form['install_demos']['demo_collections']['#options'][$available_demo] = $available_demo_desc;
    } else {
      array_push($existing_demos, $demo_objects[$available_demo]);
    }
  }

  // Check if the SmileyStuff collectoin exists, and if it has a COLLECTION_VIEW datastream. If it doesn't then we can add it.

  $smiley_stuff = new Fedora_Item('demo:SmileyStuff');
  if (!empty($smiley_stuff->objectProfile)) {
    $datastreams_list = $smiley_stuff->get_datastreams_list_as_array();
    if (empty($datastreams_list['COLLECTION_VIEW'])) {
      $form['install_demos']['demo_collections']['#options']['demo:SmileyStuff'] = 'Add Islandora Collection View to Fedora Smiley Stuff Collection';
    } else {
      $demo_objects['demo:SmileyStuff'] = $smiley_stuff;
    }
  } else {
    $form['install_demos']['smileynote'] = array(
        '#value' => '<p>If you install the <a href="http://www.fedora-commons.org/documentation/3.0b1/userdocs/distribution/installation.html#running.demo">Fedora demo objects</a> Islandora can display them as a collection.'
    );
  }

  if (!empty($form['install_demos']['demo_collections']['#options'])) {
    $form['install_demos']['ingest'] = array(
        '#type' => 'submit',
        '#name' => 'install_demos',
        '#value' => 'Install Selected Demos',
    );
  }

  $links_to_existing_demos = '<ul>';
  if (!empty($existing_demos)) {
    foreach ($existing_demos as $pid => $demo_object) {
      $links_to_existing_demos .= '<li><a href="' . $demo_object->url() . '">' . $demo_object->pid . '</a></li>';
    }
  }

  $links_to_existing_demos .= '</ul>';

  $form['install_demos']['existing'] = array(
      '#value' => '<p>Demo collections already installed in this repository:</p>' . $links_to_existing_demos,
  );

  return $form;
}

function fedora_repository_demo_objects_form_submit($form, &$form_state) {
  module_load_include('inc', 'fedora_repository', 'api/fedora_item');
  module_load_include('inc', 'fedora_repository', 'api/dublin_core');
  module_load_include('inc', 'fedora_repository', 'api/fedora_utils');
  global $base_url;
  if ($form_state['clicked_button']['#name'] == 'install_demos') {
    if (!empty($form_state['values']['demo_collections']['islandora:collectionCModel'])) {
      try {
        $collectioncm = Fedora_Item::ingest_new_item('islandora:collectionCModel', 'A', 'Islandora Collection Content Model');
        $collectioncm->add_relationship('hasModel', 'fedora-system:ContentModel-3.0', FEDORA_MODEL_URI);
        $collectioncm->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/content_models/COLLECTIONCM.xml', 'ISLANDORACM', 'Islandora Content Model.xml', 'application/xml', 'X');
      } catch (exception $e) {
        
      }
      try {
        $strictpdfcm = Fedora_Item::ingest_new_item('islandora:strict_pdf', 'A', 'Strict PDF Content Model');
        $strictpdfcm->add_relationship('hasModel', 'fedora-system:ContentModel-3.0', FEDORA_MODEL_URI);
        $strictpdfcm->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/content_models/STRICT_PDFCM.xml', 'ISLANDORACM', 'Islandora Content Model.xml', 'application/xml', 'X');
      } catch (exception $e) {
        
      }

      // Install a collection object that points to all content model objects
      try {
        $cmodel_collection_xml = Fedora_Item::create_object_FOXML('islandora:ContentModelCollection');
        $cmodel_collection = Fedora_Item::ingest_from_FOXML($cmodel_collection_xml);

        //$dc = new Dublin_Core(new Fedora_Item('islandora:ContentModelCollection'));
        $dc = new Dublin_Core($cmodel_collection);
        $dc->set_element('dc:title', array('Installed Content Model'));
        $dc->save();
        $cmodel_collection->add_datastream_from_string('select $object $title from <#ri>
          where ($object <dc:title> $title
          and ($object <fedora-model:hasModel> <info:fedora/fedora-system:ContentModel-3.0>
          or $object <fedora-rels-ext:isMemberOfCollection> <info:fedora/islandora:ContentModelsCollection>)
          and $object <fedora-model:state> <info:fedora/fedora-system:def/model#Active>)
          order by $title', 'QUERY', 'Content Model Collection Query', 'text/plain');
        $cmodel_collection->add_relationship('isMemberOfCollection', 'islandora:top');
        $cmodel_collection->add_relationship('hasModel', 'islandora:collectionCModel', FEDORA_MODEL_URI);
        $cmodel_collection->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_views/simple_list_view.xml', 'COLLECTION_VIEW', 'Collection View', 'text/xml', 'X');
        $cmodel_collection->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/contentModel.jpg', 'TN', 'Thumbnail', 'image/jpg', 'M');
        drupal_set_message("Successfully installed <a href=\"" . $base_url . "/fedora/repository/islandora:ContentModelCollection\">islandora:ContentModelCollection</a>.", 'message');
      } catch (exception $e) {
        
      }
    }

    if (!empty($form_state['values']['demo_collections']['islandora:top'])) {
      $new_item = Fedora_Item::ingest_new_item('islandora:top', 'A', 'Islandora Top-level Collection');
      $new_item->add_relationship('hasModel', 'islandora:collectionCModel', FEDORA_MODEL_URI);
      $cp = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_policies/COLLECTION-COLLECTION POLICY.xml', 'COLLECTION_POLICY', 'Collection Policy', 'text/xml', 'X');
      try {
        $tn = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/Gnome-emblem-photos.png', 'TN', 'Thumbnail.png', 'image/png', 'M');
        drupal_set_message("Successfully installed <a href=\"" . $base_url . "/fedora/repository/islandora:top\">islandora:top</a>.", 'message');
      } catch (exception $e) {
        
      }
    }

    if (!empty($form_state['values']['demo_collections']['islandora:demos'])) {
      $new_item = fedora_item::ingest_new_item('islandora:demos', 'A', 'Islandora Demo Collection');
      $new_item->add_relationship('isMemberOfCollection', 'islandora:top');
      $new_item->add_relationship('hasModel', 'islandora:collectionCModel', FEDORA_MODEL_URI);
      $cp = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_policies/COLLECTION-COLLECTION POLICY.xml', 'COLLECTION_POLICY', 'Collection Policy', 'text/xml', 'X');

      // $cv = $new_item->add_datastream_from_file( drupal_get_path('module', 'fedora_repository') . '/collection_views/COLLECTION_VIEW.xml', 'COLLECTION_VIEW', 'Collection View.xml', 'text/xml', 'X');
      $tn = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/Gnome-emblem-photos.png', 'TN', 'Thumbnail.png', 'image/png', 'M');
      try {
        $new_item = Fedora_Item::ingest_new_item('islandora:pdf_collection', 'A', 'PDF Collection');
        $new_item->add_relationship('isMemberOfCollection', 'islandora:demos');
        $new_item->add_relationship('hasModel', 'islandora:collectionCModel', FEDORA_MODEL_URI);
        $cp = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_policies/PDF-COLLECTION POLICY.xml', 'COLLECTION_POLICY', 'Collection Policy', 'text/xml', 'X');
        $tn = $new_item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/Crystal_Clear_mimetype_pdf.png', 'TN', 'Thumbnail.png', 'image/png', 'M');
        drupal_set_message("Successfully installed <a href=\"" . $base_url . "/fedora/repository/islandora:demos\">islandora:demos</a>.", 'message');
      } catch (exception $e) {

      }
    }

    if (!empty($form_state['values']['demo_collections']['demo:SmileyStuff'])) {
      $smiley_stuff = new Fedora_Item('demo:SmileyStuff');
      $new_item = $smiley_stuff->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_views/SmileyStuff-COLLECTION_VIEW.xml', 'COLLECTION_VIEW', 'Collection View', 'text/xml', 'X');
      $smiley_stuff->add_relationship('isMemberOfCollection', 'info:fedora/islandora:demos');
      $tn = $smiley_stuff->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/smileytn.png', 'TN', 'Thumbnail.png', 'image/png', 'M');
      $cp = $smiley_stuff->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/collection_policies/JPG-COLLECTION POLICY.xml', 'COLLECTION_POLICY', 'Collection Policy.xml', 'application/xml', 'X');
      $cm = new Fedora_Item('demo:DualResImage');
      try {
        $cmstream = $cm->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/content_models/STANDARD JPG.xml', 'ISLANDORACM', 'Content Model.xml', 'application/xml', 'X');
        drupal_set_message("Successfully installed <a href=\"" . $base_url . "/fedora/repository/demo:SmileyStuff\">demo:SmileyStuff</a> collection view.", 'message');
      } catch (exception $e) {

      }
    }

    if (!empty($form_state['values']['demo_collections']['islandora:largeimages'])) {
      $error = '';
      foreach (array('islandora_jp2Sdep-slideCModel.xml', 'islandora_mods2htmlSdef.xml', 'islandora_mods2htmlSdep.xml',
  'islandora_slideCModel.xml', 'islandora_viewerSdep-slideCModel.xml', 'ilives_jp2Sdef.xml', 'ilives_viewerSdef.xml') as $foxml_file) {
        try {
          $item = Fedora_Item::ingest_from_FOXML_file(drupal_get_path('module', 'fedora_repository') . '/content_models/' . $foxml_file);
        } catch (exception $e) {
          $error .= " - Problem ingesting $foxml_file";
        }
      }
      try {
        $item = Fedora_Item::ingest_from_FOXML_file(drupal_get_path('module', 'fedora_repository') . '/content_models/islandora_largeimages.xml');
        $tn = $item->add_datastream_from_file(drupal_get_path('module', 'fedora_repository') . '/images/Gnome-emblem-photos.png', 'TN', 'Thumbnail.png', 'image/png', 'M');
        drupal_set_message("Successfully installed <a href=\"" . $base_url . "/fedora/repository/islandora:largeImages\">islandora:largeImages</a>.", 'message');
      } catch (exception $e) {
        $error .= " - Problem ingesting islandora:largeimages collection";
      }
    }

    if (!empty($error)) {
      drupal_set_message('Some problems occurred: ' . $error);
    }
  }
}

/*
 * Functions to create a time selector form element type.
 */

function fedora_repository_elements() {
  $type['fedora_repository_time'] = array(
      "#input" => TRUE,
      "#process" => array("fedora_repository_expand_time"),
  );

  return $type;
}

function fedora_repository_expand_time($element) {
  // Default to current time, check default_value but set value so that if
  // default value is present it will override value
  if (empty($element['#default_value'])) {
    $element['#value'] = array(
        'hour' => intval(format_date(time(), 'custom', 'h')),
        'minute' => intval(format_date(time(), 'custom', 'i')),
    );
  }

  $element['#tree'] = TRUE;

  foreach ($element['#value'] as $type => $value) {
    switch ($type) {
      case 'hour':
        $options = drupal_map_assoc(range(1, 24));
        break;
      case 'minute':
        $options = range(0, 59);
        break;
    }

    if ($type != 'meridiem') {
      foreach ($options as $option) {
        strlen($option) <= 1 ? $options[$option] = 0 . $option : '';
      }
    }

    $element[$type] = array(
        '#type' => 'select',
        '#default_value' => $element['#value'][$type],
        '#options' => $options,
    );
  }

  return $element;
}

function fedora_repository_time($element) {
  $output = '<div class="container-inline">' . $element['#children'] . '</div>';
  return theme('form_element', $element, $output);
}

function theme_fedora_repository_time($element) {
  $output = '<div class="container-inline">' . $element['#children'] . '</div>';
  return theme('form_element', $element, $output);
}

/* Export (basket) functionality */

function fedora_repository_remove_item_from_basket($pid) {

  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  $pids = empty($_SESSION['basket']['processed']) ? array() : $_SESSION['basket']['processed'];

  $objectHelper = new ObjectHelper();
  // getting child PIDs if any
  $cpids = $objectHelper->get_child_pids(array($pid));

  if (array_key_exists($pid, $pids)) {
    // remove item from basket
    unset($_SESSION['basket']['processed'][$pid]);
  }
  if (!empty($cpids)) { // there are children
    foreach ($cpids as $child_pid => $value) {
      // remove child item from basket recursively
      fedora_repository_remove_item_from_basket($child_pid);
    }
  }
}

function fedora_repository_basket() {
  $pids = _fedora_repository_get_basket_pids();
  $output = drupal_get_form('fedora_repository_basket_form', $pids);

  return $output;
}

function fedora_repository_basket_form($form_state, $pids) {
  $form = array();

  if (!empty($pids)) {
    $form['pid'] = array();
    $form['title'] = array();
    $form['desc'] = array();
  } else {
    return;
  }

  ksort($pids);
  foreach ($pids as $pid => $arr) {
    $cbs[$pid] = '';

    $form['pid'][$pid] = array('#value' => l($pid, "fedora/repository/$pid"));
    $form['title'][$pid] = array('#value' => $arr['title']);
    $form['desc'][$pid] = array('#value' => $arr['desc']);
  }

  $form['remove'] = array(
      '#type' => 'checkboxes',
      '#options' => $cbs,
  );

  $form['remove_submit'] = array(
      '#type' => 'submit',
      '#value' => t('Remove selected'),
  );

  $form['remove_all'] = array(
      '#type' => 'submit',
      '#value' => t('Empty basket'),
  );

  $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Export selected'),
  );

  $form['submit_all'] = array(
      '#type' => 'submit',
      '#value' => t('Export all'),
  );

  return $form;
}

function theme_fedora_repository_basket_form($form) {
  $header = array(
      theme('table_select_header_cell'),
      t('PID'),
      t('Title'),
      t('Description'),
  );

  if (isset($form['pid']) && is_array($form['pid'])) {
    foreach (element_children($form['pid']) as $key) {
      $rows[] = array(
          drupal_render($form['remove'][$key]),
          drupal_render($form['pid'][$key]),
          drupal_render($form['title'][$key]),
          drupal_render($form['desc'][$key]),
      );
    }
  } else {
    $rows[] = array(array('data' => t('Your basket is empty.'), 'colspan' => '4'));
  }

  $output = theme('table', $header, $rows);

  $frm = drupal_render($form);
  $output = $frm . $output . $frm;

  return $output;
}

function fedora_repository_basket_form_validate($form, &$form_state) {

}

function fedora_repository_basket_form_submit($form, &$form_state) {
  if ($form_state['values']['op'] == $form_state['values']['remove_submit']) {
    $pids = $form_state['clicked_button']['#post']['remove'];

    if (isset($pids)) {
      foreach ($pids as $pid) {
        fedora_repository_remove_from_basket($pid);
      }
      drupal_set_message(t("Selected objects removed"));
      return;
    }
  }

  if ($form_state['values']['op'] == $form_state['values']['remove_all']) {
    _fedora_repository_empty_basket();
    drupal_set_message(t("Basket emptied"));
    return;
  }

  if ($form_state['values']['op'] == $form_state['values']['submit_all']) {
    $msg = t("All objects exported to staging area");
    $pids = _fedora_repository_get_basket_pids();
  } elseif ($form_state['values']['op'] == $form_state['values']['submit']) {
    $msg = t("Selected objects exported to staging area");
    $pids = array_filter($form_state['values']['remove']);
  }

  if (!empty($pids)) {
    global $user;
    $log = array();
    $success = TRUE;
    $export_dir = variable_get('export_area', file_directory_path() . '/fedora_export_area') . '/' . $user->name . '/' . date("Ymd-His");
    $foxml_dir = $export_dir . '/foxml';

    if (!file_exists($foxml_dir) && !@mkdir($foxml_dir, 0775, TRUE)) {
      drupal_set_message(t("Failed to create foxml dir %dir. Check that export dir exsits and has correct permissions", array('%dir' => $foxml_dir)), 'error');
      return FALSE;
    }

    module_load_include('inc', 'fedora_repository', 'api/fedora_export');
    foreach ($pids as $pid => $arr) {

      $objects_dir = $export_dir . '/objects/' . $pid;
      if (!file_exists($objects_dir) && !@mkdir($objects_dir, 0775, TRUE)) {
        drupal_set_message(t("Failed to create objects dir %dir. Check that export dir exsits and has correct permissions", array('%dir' => $objects_dir)), 'error');
        return FALSE;
      }

      if (!export_to_export_area($pid, $foxml_dir, $objects_dir, $log)) {
        $success = FALSE;
      }
    }
    $msg = $success ? $msg : t("Failed to export objects to staging area");
    $msg .= ":<br/>" . implode("<br/>", $log);

    drupal_set_message($msg, $success ? 'info' : 'error');
    //_fedora_repository_empty_basket();
  } else {
    drupal_set_message(t("No objects selected or basket empty"), 'error');
  }

  return;
}

/*
 * Get all pids saved to the basket. 
 */

function _fedora_repository_get_basket_pids() {

  // Set empty defaults if basket elements are missing
  $_SESSION['basket'] = isset($_SESSION['basket']) ? $_SESSION['basket'] : array('processed' => array(), 'unprocessed' => array());
  $_SESSION['basket']['processed'] = isset($_SESSION['basket']['processed']) ? $_SESSION['basket']['processed'] : array();
  $_SESSION['basket']['unprocessed'] = isset($_SESSION['basket']['unprocessed']) ? $_SESSION['basket']['unprocessed'] : array();

  $pids = empty($_SESSION['basket']['processed']) ? array() : $_SESSION['basket']['processed'];

  module_load_include('inc', 'fedora_repository', 'ObjectHelper');
  $ob = new ObjectHelper();
  foreach ($_SESSION['basket']['unprocessed'] as $pid) {
    // Check if the pid already exists in the tree
    if (array_key_exists($pid, $pids)) {
      continue;
    }

    $pids += $ob->get_all_related_pids($pid);
//    $pids += array($pid);
  }

  $_SESSION['basket']['processed'] = $pids;
  $_SESSION['basket']['unprocessed'] = array();

  return $pids;
}

function _fedora_repository_empty_basket() {
  unset($_SESSION['basket']);
}

function fedora_repository_add_to_basket($pid, $warn = TRUE, $searchResultsFlag = FALSE) {
  if ($warn && _is_added_to_basket($pid)) {
    drupal_set_message("Object already in basket");
  }

  if (!isset($_SESSION['basket'])) {
    $_SESSION['basket'] = array();
    $_SESSION['basket']['unprocessed'] = array($pid => $pid);
  } else {
    $_SESSION['basket']['unprocessed'][$pid] = $pid;
  }

  if (!$searchResultsFlag) {
    drupal_goto('fedora/basket');
  }
}

function fedora_repository_remove_from_basket($pid) {
  if (isset($_SESSION['basket']['unprocessed'][$pid])) {
    unset($_SESSION['basket']['unprocessed'][$pid]);
  }

  if (isset($_SESSION['basket']['processed'][$pid])) {
    unset($_SESSION['basket']['processed'][$pid]);
  }
  return;
}

function theme_add_to_basket_link($pid, $type = 'object') {
  $object = t($type);
  $path = drupal_urlencode($pid);

  $save = "export_big.png";
  $saved = "exported_big.png";
//  $path = drupal_get_path('module', 'Fedora_Repository').'/images/'.$save ;
  /*
    var_dump($path);
    var_dump(theme('image',drupal_get_path('module', 'Fedora_Repository').'/images/'.$save));
    die();
   */
  if (!_is_added_to_basket($pid)) {
    return l(
            theme('image', drupal_get_path('module', 'Fedora_Repository') . '/images/' . $save, t("Add to basket"), t("Add this @object to my basket", array('@object' => $object))),
            "fedora/repository/addToBasket/" . $path,
            array('html' => TRUE)
    );
  }

  return theme('image', drupal_get_path('module', 'Fedora_Repository') . '/images/' . $saved, t("In basket"), t("This @object is already in your basket", array('@object' => $object)));
}

function _is_added_to_basket($pid, $account = NULL) {
  return isset($_SESSION['basket']['unprocessed'][$pid]) || isset($_SESSION['basket']['processed'][$pid]);
//  return db_result(db_query("SELECT uid FROM {repository_basket} WHERE uid = %d AND pid = '%s'", $account->uid, $pid));
}

function fedora_repository_display_schema($file) {
  $path = drupal_get_path('module', 'fedora_repository');
  if (strtolower(substr($file, -3)) == 'xsd' && file_exists($path . '/' . $file)) {
    drupal_goto($path . '/' . $file);
  } else {
    drupal_goto();
  }
  return;
}