Drupal modules for browsing and managing Fedora-based digital repositories.
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<?php
// $Id$
/**
* @file
* Refworks class
*/
module_load_include('inc', 'islandora_repository', 'SecurityClass');
/**
* Refworks class ???
*/
class Refworks {
private $romeoUrlString = "";
private $referenceList;
private $securityHelper;
private $collectionPolicyStream;
private $issn = '';
/**
* Constructor
*/
function Refworks() {
$this->romeoUrlString = "http://www.sherpa.ac.uk/romeo/api24.php?issn=";
}
/**
* Build Form ??
* @param type $form
* @param type $ingest_form_definition
* @param type $form_values
* @return type
*/
function buildForm(&$form, $ingest_form_definition, &$form_values) {
$form['indicator2'] = array(
'#type' => 'fieldset',
'#title' => t('Ingest digital object step #2'),
);
foreach ($ingest_form_definition->form_elements->element as $element) {
$name = strip_tags($element->name->asXML());
$title = strip_tags($element->label->asXML());
$required = strip_tags($element->required->asXML());
$prefix = strip_tags($element->prefix);
$required = strtolower($required);
if ($required != 'TRUE') {
$required = '0';
}
$description = strip_tags($element->description->asXML());
$type = strip_tags($element->type->asXML());
$form['indicator2']["$name"] = array(
'#title' => $title,
'#required' => $required,
'#description' => $description,
'#prefix' => $prefix,
'#type' => $type
);
}
return $form;
}
/**
* Read the input file and generate a list of Reference items.
*
* @param array $form_values
* @param SimpleXMLElement $dom
* @return SimpleXMLElement
*/
function parse_refworks_item(&$form_values) {
$file = $form_values['ingest-file-location'];
try {
$dom = new DOMDocument('1.0', 'UTF-8');
$dom->substituteEntities = FALSE;
$dom->loadXML(trim(file_get_contents($file)));
$xml = simplexml_import_dom($dom);
//$xml=simplexml_load_string(trim(file_get_contents($file),NULL,TRUE));
//$dom = dom_import_simplexml($xml);//test to see if it behaves better
//$xml = new SimpleXMLElement(trim(file_get_contents($file)));
} catch (Exception $e) {
drupal_set_message(t('Error processing Refworks file:') . " " . $e->getMessage());
return FALSE;
}
$this->referenceList = array();
foreach ($xml->reference as $reference) {
array_push($this->referenceList, $reference);
}
return $this->referenceList;
}
/**
* Create a DC stream with ID of DC ???
* @param type $dom
* @param type $rootElement
* @param type $reference
* @return type
*/
function createQDCStream(&$dom, &$rootElement, $reference) {
$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", "DC 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);
foreach ($reference->sr as $value) {
$element = $dom->createElement('dc:type', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->id as $value) {
$identifier = $value;
}
foreach ($reference->a1 as $value) {
$element = $dom->createElement('dc:creator', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->t1 as $value) {
// $form_values['dc:title'] = $value;
$element = $dom->createElement('dc:title', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->jf as $value) {
$source = $value;
}
foreach ($reference->yr as $value) {
$element = $dom->createElement('dc:date', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->vo as $value) {
$source .= ' Volume: ' . $value;
}
foreach ($reference->is as $value) {
$source .= ' Issue: ' . $value;
}
foreach ($reference->sp as $value) {
$source .= ' Start Page: ' . $value;
}
foreach ($reference->op as $value) {
$source .= ' Other Pages: ' . $value;
}
foreach ($reference->ul as $value) {
$source .= ' URL: ' . $value;
}
foreach ($reference->k1 as $value) {
$element = $dom->createElement('dc:subject', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->a2 as $value) {
$element = $dom->createElement('dc:contributor', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->a3 as $value) {
$element = $dom->createElement('dc:contributor', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->a4 as $value) {
$element = $dom->createElement('dc:contributor', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->a5 as $value) {
$element = $dom->createElement('dc:contributor', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->la as $value) {
$element = $dom->createElement('dc:language', htmlspecialchars($value, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
}
foreach ($reference->pb as $value) {
$source = 'Publisher: ' . $value;
}
foreach ($reference->pp as $value) {
$source .= ' Place of publication: ' . $value;
}
foreach ($reference->sn as $value) {
$identifier .= ' ISSN/ISBN: ' . $value;
//$this->romeoUrlString = $this->romeoUrlString . $value;
if (!$this->issn == '') {
$this->issn = $value;
}
else {
$this->issn .= ',' . $value;
}
}
foreach ($reference->ab as $value) {
$description = ' abstract: ' . $value;
}
foreach ($reference->cr as $value) {
$description .= ' Cited reference: ' . $value;
}
$element = $dom->createElement('dc:description', htmlspecialchars($description, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
$element = $dom->createElement('dc:source', htmlspecialchars($source, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
$element = $dom->createElement('dc:identifier', htmlspecialchars($identifier, ENT_NOQUOTES, 'UTF-8'));
$oai->appendChild($element);
//$rootElement->appendChild($datastream);
return $datastream;
}
/**
* Handle Form ??
* @param type $form_values
* @return type
*/
function handleForm(&$form_values) {
$errorMessage = NULL;
module_load_include('inc', 'islandora_repository', 'CollectionClass');
module_load_include('inc', 'islandora_repository', 'ContentModel');
module_load_include('inc', 'islandora_repository', 'api/fedora_item');
$contentModelPid = ContentModel::getPidFromIdentifier($form_values['models']);
$contentModelDsid = ContentModel::getDSIDFromIdentifier($form_values['models']);
$collectionHelper = new CollectionClass();
$startTime = time();
$collection_pid = $form_values['collection_pid'];
$this->parse_refworks_item($form_values);
$this->securityHelper = new SecurityClass();
$collection_item = new Fedora_Item($collection_pid);
$this->collectionPolicyStream = $collection_item->get_datastream_dissemination('CHILD_SECURITY');
if (empty($this->collectionPolicyStream)) {
$this->collectionPolicyStream = file_get_contents(drupal_get_path('module', 'islandora_repository') . '/policies/noObjectEditPolicy.xml');
}
$success = 0;
$errors = 0;
foreach ($this->referenceList as $reference) {
$dom = new DomDocument("1.0", "UTF-8");
$dom->substituteEntities = FALSE;
$dom->formatOutput = TRUE;
$pid = $collectionHelper->getNextPid($collection_pid, $contentModelDsid);
$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
$qdc_element = $this->createQDCStream($dom, $rootElement, $reference);
if (!$qdc_element) {
drupal_set_message(t('Error creating DC for Refworks'), 'error');
continue;
}
$item_title = '';
foreach ($reference->t1 as $value) {
$item_title .= ' --- ' . $value;
}
$this->createStandardFedoraStuff($form_values, $dom, $rootElement, $reference);
$rootElement->appendChild($qdc_element);
//create relationships
$this->createRelationShips($form_values, $dom, $rootElement, $pid);
//create dublin core
$this->createFedoraDataStreams($form_values, $dom, $rootElement, $reference);
if (!empty($this->collectionPolicyStream)) {
$this->create_security_policies($dom, $rootElement, $reference);
}
$params = array(
'objectXML' => $dom->saveXML(),
'format' => 'info:fedora/fedora-system:FOXML-1.1',
'logMessage' => "Fedora Object Ingested",
);
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');
watchdog(t("FEDORA_REPOSITORY"), "Error getting SOAP client: !e", array('!e' => $e), NULL, WATCHDOG_ERROR);
return;
}
$object = $client->__soapCall('ingest', array(
$params
));
watchdog(t("FEDORA_REPOSITORY"), t("Successfully added repository item !pid - !it", array('!pid' => $pid, '!it' => $item_title)), NULL, WATCHDOG_INFO);
$deleteFiles = $form_values['delete_file']; //remove files from drupal file system
if ($deleteFiles > 0) {
unlink($form_values['fullpath']);
}
} catch (exception $e) {
$errors++;
$errorMessage = 'yes';
watchdog(t("FEDORA_REPOSITORY"), t("Error during ingest !it !e", array('!it' => $item_title, '!e' => $e)), NULL, WATCHDOG_ERROR);
}
$success++;
}
if (isset($errorMessage)) {
drupal_set_message(t('Error ingesting one or more records! Check Drupal watchdog logs for more info'), 'error');
}
$endTime = time();
drupal_set_message(t('Successfull ingest of %success records. %errors records failed. Ingest took %seconds seconds', array('%success' => $success - $errors, '%errors' => $errors, '%seconds' => $endTime - $startTime)), 'info');
}
/**
* Creates the RELS-EXT for the foxml
* @param type $form_values
* @param type $dom
* @param type $rootElement
* @param type $pid
*/
function createRelationShips($form_values, &$dom, &$rootElement, $pid = NULL) {
$drdf = $dom->createElement("foxml:datastream");
$drdf->setAttribute("ID", "RELS-EXT");
$drdf->setAttribute("CONTROL_GROUP", "X");
$dvrdf = $dom->createElement("foxml:datastreamVersion");
$dvrdf->setAttribute("ID", "RELS-EXT.0");
$dvrdf->setAttribute("MIMETYPE", "text/xml");
$dvrdf->setAttribute("LABEL", "Fedora Object-to-Object Relationship Metadata");
$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:fedora-model", "info:fedora/fedora-system:def/model#");
$rdfdesc = $dom->createElement("rdf:description");
$rdfdesc->setAttribute("rdf:about", "info:fedora/$pid");
$member = $dom->createElement("fedora:isMemberOfCollection");
$membr = $form_values['collection_pid'];
$member->setAttribute("rdf:resource", "info:fedora/$membr");
$model = $dom->createElement("fedora-model:hasModel");
$model->setAttribute("rdf:resource", "info:fedora/islandora:refworksCModel");
$drdf->appendChild($dvrdf);
$dvrdf->appendChild($dvcontent);
$dvcontent->appendChild($rdf);
$rdf->appendChild($rdfdesc);
$rdfdesc->appendChild($member);
$rdfdesc->appendChild($model);
$rootElement->appendChild($drdf);
}
/**
* Create Romeo Datastream
* @param type $dom
* @param type $rootElement
*/
function createRomeoDataStream(&$dom, &$rootElement) {
$ds1 = $dom->createElement("foxml:datastream");
$ds1->setAttribute("ID", "ROMEO");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "E");
$ds1v = $dom->createElement("foxml:datastreamVersion");
$ds1v->setAttribute("ID", "ROMEO.0");
$ds1v->setAttribute("MIMETYPE", "text/xml");
$ds1v->setAttribute("LABEL", "ROMEO");
$ds1content = $dom->createElement('foxml:contentLocation');
$url = $this->romeoUrlString . $this->issn;
$this->issn = ''; //clear the issn's for next ingest in case we are doing batch
$ds1content->setAttribute("REF", "$url");
$ds1content->setAttribute("TYPE", "URL");
$ds1->appendChild($ds1v);
$ds1v->appendChild($ds1content);
$rootElement->appendChild($ds1);
}
/**
* Create Fedora Datastream
* @global type $base_url
* @param type $form_values
* @param type $dom
* @param type $rootElement
* @param type $reference
*/
function createFedoraDataStreams($form_values, &$dom, &$rootElement, $reference) {
global $base_url;
module_load_include('inc', 'islandora_repository', 'MimeClass');
$mimetype = new MimeClass();
$server = NULL;
$this->createRomeoDataStream($dom, $rootElement);
$ds1 = $dom->createElement("foxml:datastream");
$ds1->setAttribute("ID", "refworks");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "X");
$ds1v = $dom->createElement("foxml:datastreamVersion");
$ds1v->setAttribute("ID", "refworks.0");
$ds1v->setAttribute("MIMETYPE", "text/xml");
$ds1v->setAttribute("LABEL", "Refworks datastream");
$ds1content = $dom->createElement("foxml:xmlContent");
$ds1content->appendChild($dom->importNode(dom_import_simplexml($reference), TRUE));
$ds1->appendChild($ds1v);
$ds1v->appendChild($ds1content);
$rootElement->appendChild($ds1);
$count = 0;
}
/**
* Creates the standard foxml properties
* @param type $form_values
* @param type $dom
* @param type $rootElement
* @param type $reference
*/
function createStandardFedoraStuff($form_values, &$dom, &$rootElement, $reference) {
// 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");
$label = $reference->t1;
if (strlen($label) > 254) {
$label = substr($label, 0, 245);
}
$prop3->setAttribute("VALUE", $label);
$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);
}
/**
* Read the list of Users from the U1 field and Roles from the U2 field and add elements
* to the security policy record for this item, then add the record as the security policy datastream.
*
* @param array $form_values
* @param DOMDocument $dom
* @param $rootElement
* @param SimpleXMLElement $reference
*/
function create_security_policies($dom, &$rootElement, $reference) {
global $user;
$ds1 = $dom->createElement("foxml:datastream");
$ds1->setAttribute("ID", "POLICY");
$ds1->setAttribute("STATE", "A");
$ds1->setAttribute("CONTROL_GROUP", "X");
$ds1v = $dom->createElement("foxml:datastreamVersion");
$ds1v->setAttribute("ID", "POLICY.0");
$ds1v->setAttribute("MIMETYPE", "text/xml");
$ds1v->setAttribute("LABEL", "POLICY Record");
$ds1content = $dom->createElement("foxml:xmlContent");
$custom_policy = $this->collectionPolicyStream;
$allowed_users_and_roles = array();
$allowed_users_and_roles['users'] = array();
$allowed_users_and_roles['roles'] = array();
foreach ($reference->u1 as $namelist) {
foreach (explode(';', strip_tags($namelist->asXML())) as $name) {
array_push($allowed_users_and_roles['users'], $name);
}
}
if (empty($reference->u1)) {
// If no "u1" value exists, add the currently logged-in user to the item's security policy.
array_push($allowed_users_and_roles['users'], $user->name);
}
foreach ($reference->u2 as $rolelist) {
foreach (explode(';', strip_tags($rolelist->asXML())) as $role) {
array_push($allowed_users_and_roles['roles'], $role);
}
}
$custom_policy = $this->securityHelper->set_allowed_users_and_roles($custom_policy, $allowed_users_and_roles);
$custom_policy_sxe = new SimpleXMLElement($custom_policy);
$ds1->appendChild($ds1v);
$ds1v->appendChild($ds1content);
$rootElement->appendChild($ds1);
$ds1content->appendChild($dom->importNode(dom_import_simplexml($custom_policy_sxe), TRUE));
}
}