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343 lines
11 KiB
343 lines
11 KiB
<?php |
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/** |
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* @file datastream.inc |
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*/ |
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define('DS_COMP_STREAM', 'DS-COMPOSITE-MODEL'); |
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/** |
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* |
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* @global object $user |
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* @param string $object_id |
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* @param string $dsid |
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* @return stream |
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* prints datastream to browser |
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*/ |
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function islandora_datastream_as_attachment($object_id, $dsid) { |
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module_load_include('inc', 'islandora', 'RestConnection'); |
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global $user; |
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try { |
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$restConnection = new RestConnection($user); |
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$fedora_object = new FedoraObject($object_id, $restConnection->repository); |
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} catch (Exception $e) { |
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drupal_set_message(t('Error getting Islanndora datastream $d for object %s', array('%s' => $object_id, '%d' => $dsid)), 'error'); |
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return""; |
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} |
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header('Content-type: ' . $fedora_object[$dsid]->mimetype); |
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if($fedora_object[$dsid]->controlGroup == 'M' || $fedora_object[$dsid]->controlGroup == 'X') { |
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header('Content-length: ' . $fedora_object[$dsid]->size); |
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} |
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header("Cache-control: private"); |
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$method = arg(5); |
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if (isset($method) && $method == 'download') { |
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header("Content-Disposition: attachment; filename=\"" . $fedora_object[$dsid]->label); |
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} |
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print($fedora_object[$dsid]->content); |
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exit(); |
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} |
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/** |
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* |
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* @param array $arr |
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* an array of dsids that are defined by this objects cmodels |
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* @param string $ds_comp_stream |
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* the dscomposite stream as xml |
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*/ |
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function islandora_get_defined_dsids_array(&$arr, $ds_comp_stream) { |
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$sxml = new SimpleXMLElement($ds_comp_stream); |
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foreach ($sxml->dsTypeModel as $ds) { |
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//$arr[$ds['ID']] |
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$mimes = array(); |
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foreach ($ds->form as $form) { |
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$mimetype = (string) $form['MIME']; |
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$mimes[] = $mimetype; |
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} |
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$dsid = (string) $ds['ID']; |
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if ($dsid != 'AUDIT') { |
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$arr[(string) $ds['ID']] = $mimes; |
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} |
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} |
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} |
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/** |
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* |
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* @global type $user |
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* @param string $object_id |
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* @return string|array |
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*/ |
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function islandora_get_unused_dsids($object_id) { |
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module_load_include('inc', 'islandora', 'RestConnection'); |
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global $user; |
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try { |
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$restConnection = new RestConnection($user); |
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$fedora_object = new FedoraObject($object_id, $restConnection->repository); |
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} catch (Exception $e) { |
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drupal_set_message(t('Error getting Islandora object %s ', array('%s' => $object_id)), 'error'); |
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return; |
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} |
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if (!isset($fedora_object)) { |
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drupal_set_message(t('Could not create add datastream form for %s'), array('%s' => $object_id)); |
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return; |
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} |
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$models = $fedora_object->models; |
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$defined_dsids = array(); |
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if (isset($models)) { |
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foreach ($models as $model) { |
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try { |
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$model_object = new FedoraObject($model, $restConnection->repository); |
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if (isset($model_object[DS_COMP_STREAM])) { |
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$dscomposite_stream = $model_object[DS_COMP_STREAM]->content; |
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islandora_get_defined_dsids_array($defined_dsids, $dscomposite_stream); |
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} |
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} catch (Exception $e) { |
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//do nothing as other objects may have a dscompsite stream |
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} |
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} |
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} |
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foreach ($defined_dsids as $key => $value) { |
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if (isset($fedora_object[$key])) { |
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unset($defined_dsids[$key]); //ds exists in the object so don't show in the dropdown |
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} |
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} |
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return $defined_dsids; |
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} |
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/** |
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* buids the default add datastream form |
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* @param string $object_id |
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* @param array $form_state |
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* @return array |
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* a form ready to be rendered with a call to Drupal render |
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*/ |
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function islandora_get_add_datastream_form($object_id, &$form_state) { |
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$unused_dsids = islandora_get_unused_dsids($object_id); //$defined_dsids; |
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$form = array(); |
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$form['add_fieldset'] = array( |
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'#type' => 'fieldset', |
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'#title' => 'Add a datastream', |
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'#collapsible' => TRUE, |
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'#collapsed' => TRUE, |
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); |
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$form['add_fieldset']['add_datastream_label'] = array( |
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'#value' => t('<br /><h3>Add Datastream:</h3>'), |
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'#weight' => -10, |
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); |
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$form['pid'] = array( |
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'#type' => 'hidden', |
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'#value' => "$object_id" |
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); |
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$form['add_fieldset']['stream_label'] = array( |
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'#title' => 'Datastream Label', |
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'#required' => 'TRUE', |
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'#description' => t('A Human readable label'), |
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'#type' => 'textfield' |
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); |
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$form['#attributes']['enctype'] = 'multipart/form-data'; |
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$form['add_fieldset']['add-stream-file-location'] = array( |
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'#type' => 'file', |
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'#title' => t('Upload Document'), |
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'#size' => 48, |
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// '#required'=>'TRUE', |
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'#description' => t('The file to upload.') |
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); |
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$form['#redirect'] = "islandora/object/$object_id/"; |
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$form['add_fieldset']['submit'] = array( |
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'#type' => 'submit', |
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'#value' => t('Add Datastream') |
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); |
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if (!empty($unused_dsids)) { |
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$dsidsForForm = array(); |
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foreach ($unused_dsids as $key => $value) { |
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$dsidsForForm[$key] = $key; |
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} |
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$form['add_fieldset']['stream_id'] = array( |
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'#type' => 'select', |
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'#title' => t('Datastream ID'), |
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'#default_value' => variable_get('feed_item_length', 'teaser'), |
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'#weight' => '-1', |
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'#description' => t('Datastream IDs defined by the content model.'), |
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); |
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$form['add_fieldset']['stream_id']['#options'] = $dsidsForForm; |
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} |
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else { |
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$form['add_fieldset']['stream_id'] = array( |
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'#title' => 'Datastream ID', |
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'#required' => 'TRUE', |
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'#description' => t('An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters and dashes and underscores.'), |
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'#type' => 'textfield', |
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'#weight' => -1, |
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); |
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} |
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return $form; |
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} |
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/** |
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* Default implmentation currently only does M (managed datastreams) |
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* other modules can hook form alter to add other functionality |
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* @global string $base_url |
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* @global object $user |
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* Drupal user |
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* @param array $form |
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* @param array $form_state |
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* @return type |
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*/ |
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function islandora_add_datastream_form_submit($form, &$form_state) { |
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global $base_url; |
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if (!empty($form_state['submit']) && $form_state['submit'] == 'OK') { |
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$form_state['rebuild'] = TRUE; |
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return; |
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} |
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$file = $form_state['values']['add-stream-file-location']; |
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$file = drupal_realpath($file); |
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$object_id = $form_state['values']['pid']; |
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$dsid = $form_state['values']['stream_id']; |
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$ds_label = $form_state['values']['stream_label']; // Add the file extention to the end of the label.; |
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//$dformat = $mimetype->getType($file); |
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$controlGroup = "M"; |
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//if ($dformat == 'text/xml') { |
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// $controlGroup = 'X'; |
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//} |
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global $user; |
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try { |
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$restConnection = new RestConnection($user); |
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$fedora_object = new FedoraObject($object_id, $restConnection->repository); |
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$ds = $fedora_object->constructDatastream($dsid, $controlGroup); |
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$ds->label = $ds_label; |
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$ds->setContentFromFile($file); |
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$fedora_object->ingestDatastream($ds); |
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$d_file = file_load($form_state['values']['fid']); |
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file_delete($d_file); |
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} catch (exception $e) { |
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drupal_set_message(t('@message', array('@message' => check_plain($e->getMessage()))), 'error'); |
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return; |
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} |
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$form_state['rebuild'] = TRUE; |
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} |
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/** |
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* validates this datastream id against its allowed mimetypes in the dscomposite |
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* of its content models. |
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* @param array $form |
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* @param array $form_state |
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* @return boolean |
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*/ |
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function islandora_add_datastream_form_validate($form, &$form_state) { |
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module_load_include('inc', 'islandora', 'includes/MimeClass'); |
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$mimetype = new MimeClass(); |
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if ($form_state['clicked_button']['#value'] == 'OK') { |
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$form_state['rebuild'] = TRUE; |
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return; |
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} |
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$dsid = $form_state['values']['stream_id']; |
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$dsLabel = $form_state['values']['stream_label']; |
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if (strlen($dsid) > 64) { |
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form_set_error('', t('Data stream ID cannot be more than 64 characters.')); |
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return FALSE; |
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} |
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if (!(preg_match("/^[a-zA-Z]/", $dsid))) { |
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form_set_error('', t("Data stream ID (@dsid) has to start with a letter.", array('@dsid' => check_plain($dsid)))); |
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return FALSE; |
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} |
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if (strlen($dsLabel) > 64) { |
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form_set_error('', t('Data stream Label cannot be more than 64 characters.')); |
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return FALSE; |
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} |
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if (strpos($dsLabel, '/')) { |
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form_set_error('', t('Data stream Label cannot contain a "/".')); |
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return FALSE; |
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} |
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$mimetype = new MimeClass(); |
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$unused_dsids = islandora_get_unused_dsids($form_state['values']['pid']); |
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$types_allowed = $unused_dsids[$dsid]; |
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$arr = array(); |
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foreach ($types_allowed as $type) { |
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$arr[] = $mimetype->getExtension($type); |
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} |
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$file = file_save_upload('add-stream-file-location', array('file_validate_extensions' => $arr)); |
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if ($file) { |
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$form_state['values']['add-stream-file-location'] = $file->uri; |
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$form_state['values']['fid'] = $file->fid; //so we can load it to delete later |
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} |
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else { |
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form_set_error('add-stream-file-location', t('There was no file uploaded')); |
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} |
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} |
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/** |
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* buids the default add datastream form |
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* @param string $object_id |
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* @param array $form_state |
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* @return array |
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* a form ready to be rendered with a call to Drupal render |
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*/ |
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function islandora_add_datastream_form($form, &$form_state, $object_id) { |
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$unused_dsids = islandora_get_unused_dsids($object_id); //$defined_dsids; |
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$form = array(); |
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$form['add_fieldset'] = array( |
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'#type' => 'fieldset', |
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'#title' => 'Add a datastream', |
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'#collapsible' => FALSE, |
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'#collapsed' => FALSE, |
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); |
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$form['add_fieldset']['add_datastream_label'] = array( |
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'#value' => t('<br /><h3>Add Datastream:</h3>'), |
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'#weight' => -10, |
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); |
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$form['pid'] = array( |
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'#type' => 'hidden', |
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'#value' => "$object_id" |
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); |
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$form['add_fieldset']['stream_label'] = array( |
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'#title' => 'Datastream Label', |
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'#required' => 'TRUE', |
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'#description' => t('A Human readable label'), |
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'#type' => 'textfield' |
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); |
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$form['#attributes']['enctype'] = 'multipart/form-data'; |
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$form['add_fieldset']['add-stream-file-location'] = array( |
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'#type' => 'file', |
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'#title' => t('Upload Document'), |
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'#size' => 48, |
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// '#required'=>'TRUE', |
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'#description' => t('The file to upload.') |
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); |
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$form['#redirect'] = "islandora/object/$object_id/"; |
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$form['add_fieldset']['submit'] = array( |
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'#type' => 'submit', |
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'#value' => t('Add Datastream') |
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); |
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if (!empty($unused_dsids)) { |
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$dsidsForForm = array(); |
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foreach ($unused_dsids as $key => $value) { |
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$dsidsForForm[$key] = $key; |
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} |
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$form['add_fieldset']['stream_id'] = array( |
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'#type' => 'select', |
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'#title' => t('Datastream ID'), |
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'#default_value' => variable_get('feed_item_length', 'teaser'), |
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'#weight' => '-1', |
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'#description' => t('Datastream IDs defined by the content model.'), |
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); |
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$form['add_fieldset']['stream_id']['#options'] = $dsidsForForm; |
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} |
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else { |
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$form['add_fieldset']['stream_id'] = array( |
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'#title' => 'Datastream ID', |
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'#required' => 'TRUE', |
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'#description' => t('An ID for this stream that is unique to this object. Must start with a letter and contain only alphanumeric characters and dashes and underscores.'), |
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'#type' => 'textfield', |
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'#weight' => -1, |
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); |
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} |
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return $form; |
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}
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