Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
// $Id$
/**
* @package Islandora
* @subpackage plugins
*/
/*
* Created on 19-Feb-08
*
*
* implements methods from content model ingest form xml
* builds a dc metadata form
*/
class FormBuilder {
function FormBuilder() {
module_load_include('inc', 'FormBuilder', '');
drupal_bootstrap(DRUPAL_BOOTSTRAP_FULL);
}
function createQDCStream($form_values, &$dom, &$rootElement) {
$datastream = $dom->createElement("foxml:datastream");
$datastream->setAttribute("ID", "DC");
$datastream->setAttribute("STATE", "A");
$datastream->setAttribute("CONTROL_GROUP", "X");
$version = $dom->createElement("foxml:datastreamVersion");
$version->setAttribute("ID", "DC.0");
$version->setAttribute("MIMETYPE", "text/xml");
$version->setAttribute("LABEL", "Dublin Core Record");
$datastream->appendChild($version);
$content = $dom->createElement("foxml:xmlContent");
$version->appendChild($content);
///begin writing qdc
$oai = $dom->createElement("oai_dc:dc");
$oai->setAttribute('xmlns:oai_dc', "http://www.openarchives.org/OAI/2.0/oai_dc/");
$oai->setAttribute('xmlns:dc', "http://purl.org/dc/elements/1.1/");
$oai->setAttribute('xmlns:dcterms', "http://purl.org/dc/terms/");
$oai->setAttribute('xmlns:xsi', "http://www.w3.org/2001/XMLSchema-instance");
$content->appendChild($oai);
//dc elements
$previousElement=NULL;//used in case we have to nest elements for qualified dublin core
foreach ($form_values as $key => $value) {
$key = str_replace('_', ':', $key);
$index = strrpos($key, '-');
if ($index > 01) {
$key = substr($key, 0, $index);
}
$test = substr($key, 0, 2);
if ($test == 'dc' || $test == 'ap') {
//don't try to process other form values
try {
if (!strcmp(substr($key, 0, 4), 'app_')) {
$key = substr($key, 4);
$previousElement->appendChild($dom->createElement($key, $value));
}
else {
$previousElement = $dom->createElement($key, $value);
$oai->appendChild($previousElement);
}
}
catch (exception $e) {
drupal_set_message(t("!e", array('!e' => $e->getMessage())), 'error');
continue;
}
}
$rootElement->appendChild($datastream);
}
}
//create the security Policy
function createPolicy($collectionPid, &$dom, &$rootElement) {
module_load_include('inc', 'fedora_repository', 'ObjectHelper');
$objectHelper = new ObjectHelper();
$dsid = 'CHILD_SECURITY';
$policyStreamDoc = $objectHelper->getStream($collectionPid, $dsid, FALSE);
if (!isset($policyStreamDoc)) {
return NULL; //there is no policy stream so object will not have a policy stream
}
try {
$xml = new SimpleXMLElement($policyStreamDoc);
}
catch (Exception $e) {
watchdog(t("Fedora_Repository"), t("Problem getting security policy."), NULL, WATCHDOG_ERROR);
drupal_set_message(t('Problem getting security policy: !e', array('!e' => $e->getMessage())), 'error');
return FALSE;
}
$policyElement = $dom->createDocumentFragment();
if (!$policyElement) {
drupal_set_message(t('Error parsing security policy stream.'));
watchdog(t("Fedora_Repository"), t("Error parsing security policy stream, could not parse policy stream."), NULL, WATCHDOG_NOTICE);
return FALSE;
}
$dom->importNode($policyElement, TRUE);
$value=$policyElement->appendXML($policyStreamDoc);
if (!$value) {
drupal_set_message(t('Error creating security policy stream.'));
watchdog(t("Fedora_Repository"), t("Error creating security policy stream, could not parse collection policy template file."), NULL, WATCHDOG_NOTICE);
return FALSE;
}
$ds1 = $dom->createElement("foxml:datastream");
$rootElement->appendChild($ds1);
$ds1->setAttribute("ID", "POLICY");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "X");
$ds1v = $dom->createElement("foxml:datastreamVersion");
$ds1->appendChild($ds1v);
$ds1v->setAttribute("ID", "POLICY.0");
$ds1v->setAttribute("MIMETYPE", "text/xml");
$ds1v->setAttribute("LABEL", "POLICY");
$content = $dom->createElement("foxml:xmlContent");
$ds1v->appendChild($content);
$content->appendChild($policyElement);
return TRUE;
}
function handleQDCForm($form_values) {
module_load_include('inc', 'fedora_repository', 'api/fedora_item');
module_load_include('inc', 'fedora_repository', 'CollectionPolicy');
$dom = new DomDocument("1.0", "UTF-8");
$dom->formatOutput = TRUE;
$pid=$form_values['pid'];
$rootElement = $dom->createElement("foxml:digitalObject");
$rootElement->setAttribute('VERSION', '1.1');
$rootElement->setAttribute('PID', "$pid");
$rootElement->setAttribute('xmlns:foxml', "info:fedora/fedora-system:def/foxml#");
$rootElement->setAttribute('xmlns:xsi', "http://www.w3.org/2001/XMLSchema-instance");
$rootElement->setAttribute('xsi:schemaLocation', "info:fedora/fedora-system:def/foxml# http://www.fedora.info/definitions/1/0/foxml1-1.xsd");
$dom->appendChild($rootElement);
// Create standard fedora stuff
$this->createStandardFedoraStuff($form_values, $dom, $rootElement);
// Create relationships
$this->createRelationShips($form_values, $dom, $rootElement);
$collectionPid = $form_values['collection_pid'];
if (($cp = CollectionPolicy::LoadFromCollection($collectionPid)) !== FALSE) {
$collectionName = trim($cp->getName());
if (trim($collectionName) != '') {
$form_values['dc_relation'] = $collectionName;
}
}
// Create dublin core
$this->createQDCStream($form_values, $dom, $rootElement);
if (!empty($form_values['ingest-file-location'])) {
$this->createFedoraDataStreams($form_values, $dom, $rootElement);
}
$this->createPolicy($collectionPid, &$dom, &$rootElement);
try {
$object = Fedora_Item::ingest_from_FOXML($dom);
if (!empty($object->pid)) {
// drupal_set_message("Item ". l($object->pid, 'fedora/repository/'. $object->pid) . " created successfully.", "status");
drupal_set_message(t("Item !pid created successfully.", array('!pid' => l($object->pid, 'fedora/repository/'. $object->pid))), "status");
}
if (!empty( $_SESSION['fedora_ingest_files'])) {
foreach ($_SESSION['fedora_ingest_files'] as $dsid => $createdFile) {
file_delete($createdFile);
}
}
file_delete($form_values['ingest-file-location']);
}
catch (exception $e) {
drupal_set_message(t('Error ingesting object: !e', array('!e' => $e->getMessage())), 'error');
watchdog(t("Fedora_Repository"), t("Error ingesting object: !e", array('!e' => $e->getMessage())), NULL, WATCHDOG_ERROR);
return;
}
}
function createFedoraDataStreams($form_values, &$dom, &$rootElement) {
module_load_include('inc', 'fedora_repository', 'MimeClass');
global $base_url;
$mimetype = new MimeClass();
$server=NULL;
$file=$form_values['ingest-file-location'];
if (!empty( $file)) {
$dformat = $mimetype->getType($file);
$parts = explode('/', $file);
foreach ($parts as $n => $part) {
$parts[$n] = rawurlencode($part);
}
$path = implode('/', $parts);
$fileUrl = $base_url . '/' . $path;
$beginIndex = strrpos($fileUrl, '/');
$dtitle = substr($fileUrl, $beginIndex + 1);
$dtitle = urldecode($dtitle);
$ds1 = $dom->createElement("foxml:datastream");
$ds1->setAttribute("ID", "OBJ");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "M");
$ds1v= $dom->createElement("foxml:datastreamVersion");
$rootElement->appendChild($ds1);
$ds1v->setAttribute("ID", "OBJ.0");
$ds1v->setAttribute("MIMETYPE", "$dformat");
$ds1v->setAttribute("LABEL", "$dtitle");
$ds1content = $dom->createElement('foxml:contentLocation');
$ds1content->setAttribute("REF", "$fileUrl");
$ds1content->setAttribute("TYPE", "URL");
$ds1->appendChild($ds1v);
$ds1v->appendChild($ds1content);
}
if (!empty($_SESSION['fedora_ingest_files'])) {
foreach ($_SESSION['fedora_ingest_files'] as $dsid => $createdFile) {
if (!empty($file)) {
$found = strstr($createdFile, $file);
if ($found !== FALSE) {
$createdFile = $found;
}
}
$dformat = $mimetype->getType($createdFile);
$parts = explode('/', $createdFile);
foreach ($parts as $n => $part) {
$parts[$n] = rawurlencode($part);
}
$path = implode('/', $parts);
$fileUrl = $base_url . '/' . $path;
$beginIndex = strrpos($fileUrl, '/');
$dtitle = substr($fileUrl, $beginIndex + 1);
$dtitle = urldecode($dtitle);
$dtitle = $dtitle;
$ds1 = $dom->createElement("foxml:datastream");
$ds1->setAttribute("ID", "$dsid");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "M");
$ds1v= $dom->createElement("foxml:datastreamVersion");
$ds1v->setAttribute("ID", "$dsid.0");
$ds1v->setAttribute("MIMETYPE", "$dformat");
$ds1v->setAttribute("LABEL", "$dtitle");
$ds1content = $dom->createElement('foxml:contentLocation');
$ds1content->setAttribute("REF", "$fileUrl");
$ds1content->setAttribute("TYPE", "URL");
$ds1->appendChild($ds1v);
$ds1v->appendChild($ds1content);
$rootElement->appendChild($ds1);
}
}
}
/**
* Creates the RELS-EXT for the foxml
*/
function createRelationShips($form_values, &$dom, &$rootElement) {
$drdf = $dom->createElement("foxml:datastream");
$drdf->setAttribute("ID", "RELS-EXT");
$drdf->setAttribute("CONTROL_GROUP", "X");
$dvrdf = $dom->createElement("foxml:datastreamVersion");
$dvrdf->setAttribute("FORMAT_URI", "info:fedora/fedora-system:FedoraRELSExt-1.0");
$dvrdf->setAttribute("ID", "RELS-EXT.0");
$dvrdf->setAttribute("MIMETYPE", "application/rdf+xml");
$dvrdf->setAttribute("LABEL", "RDF Statements about this Object");
$dvcontent = $dom->createElement("foxml:xmlContent");
$rdf = $dom->createElement("rdf:RDF");
$rdf->setAttribute("xmlns:rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
$rdf->setAttribute("xmlns:rdfs", "http://www.w3.org/2000/01/rdf-schema#");
$rdf->setAttribute("xmlns:fedora", "info:fedora/fedora-system:def/relations-external#");
$rdf->setAttribute("xmlns:dc", "http://purl.org/dc/elements/1.1/");
$rdf->setAttribute("xmlns:oai_dc", "http://www.openarchives.org/OAI/2.0/oai_dc/");
$rdf->setAttribute("xmlns:fedora-model", "info:fedora/fedora-system:def/model#");
$rdfdesc = $dom->createElement("rdf:Description");
$pid = $form_values['pid'];
$rdfdesc->setAttribute("rdf:about", "info:fedora/$pid");
$relationship = $form_values['relationship'];
if (!isset($relationship)) {
$relationship = 'isMemberOfCollection';
}
$member = $dom->createElement("fedora:". $relationship);
$membr = $form_values['collection_pid'];
$member->setAttribute("rdf:resource", "info:fedora/$membr");
$rdfHasModel = $dom->createElement("fedora-model:hasModel");
$contentModelPid=$form_values['content_model_pid'];
$rdfHasModel->setAttribute("rdf:resource", "info:fedora/$contentModelPid");
$drdf->appendChild($dvrdf);
$dvrdf->appendChild($dvcontent);
$dvcontent->appendChild($rdf);
$rdf->appendChild($rdfdesc);
$rdfdesc->appendChild($member);
$rdfdesc->appendChild($rdfHasModel);
$rootElement->appendChild($drdf);
}
/**
* Creates the standard foxml properties
*/
function createStandardFedoraStuff($form_values, &$dom, &$rootElement) {
// Foxml object properties section
$objproperties = $dom->createElement("foxml:objectProperties");
$prop2 = $dom->createElement("foxml:property");
$prop2->setAttribute("NAME", "info:fedora/fedora-system:def/model#state");
$prop2->setAttribute("VALUE", "A");
$prop3 = $dom->createElement("foxml:property");
$prop3->setAttribute("NAME", "info:fedora/fedora-system:def/model#label");
$prop3->setAttribute("VALUE", $form_values['dc:title']);
$prop5 = $dom->createElement("foxml:property");
$prop5->setAttribute("NAME", "info:fedora/fedora-system:def/model#ownerId");
$prop5->setAttribute("VALUE", $form_values['user_id']);
$objproperties->appendChild($prop2);
$objproperties->appendChild($prop3);
$objproperties->appendChild($prop5);
$rootElement->appendChild($objproperties);
}
function buildQDCForm(&$form, $elements, &$form_values) {
$form['#multistep'] = TRUE; // used so that it triggers a form rebuild every time.
$form['indicator2'] = array(
'#type' => 'fieldset',
'#title' => t('Ingest digital object step #2'),
);
foreach ($elements as $element) {
if ($element['type'] == 'markup') {
$el = array('#value'=> $element['description']);
} else {
$el = array(
'#title' => $element['label'],
'#required' => ($element['required'] ? 1 : 0),
'#description' => $element['description'],
'#type' => $element['type']
);
}
$name = explode('][', $element['name']);
$elLocation = &$form['indicator2'];
while (isset($elLocation[$name[0]]) && ($partial = array_shift($name)) != NULL) {
$elLocation = &$elLocation[$partial];
}
$autocomplete_path = FALSE;
$autocomplete_omit_collection = FALSE;
foreach ($element['parameters'] as $key => $val) {
if ($key == '#autocomplete_path') {
$autocomplete_path = $val;
} elseif ($key == '#autocomplete_omit_collection') {
$autocomplete_omit_collection = TRUE;
} else {
$el[$key]=$val;
}
}
if ($autocomplete_path !== FALSE) {
$el['#autocomplete_path'] = $autocomplete_path . (!$autocomplete_omit_collection?'/'.$form_values['storage']['collection_pid']:'/');
}
if ($element['type'] == 'select' || $element['type'] == 'other_select') {
$el['#options']= isset($element['authoritative_list'])?$element['authoritative_list']:array();
}
$elLocation[join('][', $name)] = $el;
}
return $form;
}
}