private static function validateJSONItem($json, $libraryID, Zotero_Item $item = null, $isChild, $requestParams, $partialUpdate = false)
{
$isNew = !$item || !$item->version;
if (!is_object($json)) {
throw new Exception("Invalid item object (found " . gettype($json) . " '" . $json . "')", Z_ERROR_INVALID_INPUT);
}
if (isset($json->items) && is_array($json->items)) {
throw new Exception("An 'items' array is not valid for single-item updates", Z_ERROR_INVALID_INPUT);
}
$apiVersion = $requestParams['v'];
if ($partialUpdate) {
$requiredProps = [];
} else {
if (isset($json->itemType) && $json->itemType == "attachment") {
$requiredProps = array('linkMode', 'tags');
} else {
if (isset($json->itemType) && $json->itemType == "attachment") {
$requiredProps = array('tags');
} else {
if ($isNew) {
$requiredProps = array('itemType');
} else {
if ($apiVersion < 2) {
$requiredProps = array('itemType', 'tags');
} else {
$requiredProps = array('itemType', 'tags', 'relations');
if (!$isChild) {
$requiredProps[] = 'collections';
}
}
}
}
}
}
foreach ($requiredProps as $prop) {
if (!isset($json->{$prop})) {
throw new Exception("'{$prop}' property not provided", Z_ERROR_INVALID_INPUT);
}
}
// For partial updates where item type isn't provided, use the existing item type
if (!isset($json->itemType) && $partialUpdate) {
$itemType = Zotero_ItemTypes::getName($item->itemTypeID);
} else {
$itemType = $json->itemType;
}
foreach ($json as $key => $val) {
switch ($key) {
// Handled by Zotero_API::checkJSONObjectVersion()
case 'key':
case 'version':
if ($apiVersion < 3) {
throw new Exception("Invalid property '{$key}'", Z_ERROR_INVALID_INPUT);
}
break;
case 'itemKey':
case 'itemVersion':
if ($apiVersion != 2) {
throw new Exception("Invalid property '{$key}'", Z_ERROR_INVALID_INPUT);
}
break;
case 'parentItem':
if ($apiVersion < 2) {
throw new Exception("Invalid property '{$key}'", Z_ERROR_INVALID_INPUT);
}
if (!Zotero_ID::isValidKey($val) && $val !== false) {
throw new Exception("'{$key}' must be a valid item key", Z_ERROR_INVALID_INPUT);
}
break;
case 'itemType':
if (!is_string($val)) {
throw new Exception("'itemType' must be a string", Z_ERROR_INVALID_INPUT);
}
if ($isChild || !empty($json->parentItem)) {
switch ($val) {
case 'note':
case 'attachment':
break;
default:
throw new Exception("Child item must be note or attachment", Z_ERROR_INVALID_INPUT);
}
} else {
if ($val == 'attachment' && (!$item || !$item->getSource())) {
if ($json->linkMode == 'linked_url' || $json->linkMode == 'imported_url' && (empty($json->contentType) || $json->contentType != 'application/pdf')) {
throw new Exception("Only file attachments and PDFs can be top-level items", Z_ERROR_INVALID_INPUT);
}
}
}
if (!Zotero_ItemTypes::getID($val)) {
throw new Exception("'{$val}' is not a valid itemType", Z_ERROR_INVALID_INPUT);
}
break;
case 'tags':
if (!is_array($val)) {
throw new Exception("'{$key}' property must be an array", Z_ERROR_INVALID_INPUT);
}
foreach ($val as $tag) {
$empty = true;
if (is_string($tag)) {
if ($tag === "") {
throw new Exception("Tag cannot be empty", Z_ERROR_INVALID_INPUT);
}
continue;
}
if (!is_object($tag)) {
throw new Exception("Tag must be an object", Z_ERROR_INVALID_INPUT);
}
foreach ($tag as $k => $v) {
switch ($k) {
case 'tag':
if (!is_scalar($v)) {
throw new Exception("Invalid tag name", Z_ERROR_INVALID_INPUT);
}
if ($v === "") {
throw new Exception("Tag cannot be empty", Z_ERROR_INVALID_INPUT);
}
break;
case 'type':
if (!is_numeric($v)) {
throw new Exception("Invalid tag type '{$v}'", Z_ERROR_INVALID_INPUT);
}
break;
default:
throw new Exception("Invalid tag property '{$k}'", Z_ERROR_INVALID_INPUT);
}
$empty = false;
}
if ($empty) {
throw new Exception("Tag object is empty", Z_ERROR_INVALID_INPUT);
}
}
break;
case 'collections':
if (!is_array($val)) {
throw new Exception("'{$key}' property must be an array", Z_ERROR_INVALID_INPUT);
}
if ($isChild && $val) {
throw new Exception("Child items cannot be assigned to collections", Z_ERROR_INVALID_INPUT);
}
foreach ($val as $k) {
if (!Zotero_ID::isValidKey($k)) {
throw new Exception("'{$k}' is not a valid collection key", Z_ERROR_INVALID_INPUT);
}
}
break;
case 'relations':
if ($apiVersion < 2) {
throw new Exception("Invalid property '{$key}'", Z_ERROR_INVALID_INPUT);
}
if (!is_object($val) && !(is_array($val) && empty($val))) {
throw new Exception("'{$key}' property must be an object", Z_ERROR_INVALID_INPUT);
}
foreach ($val as $predicate => $object) {
switch ($predicate) {
case 'owl:sameAs':
case 'dc:replaces':
case 'dc:relation':
break;
default:
throw new Exception("Unsupported predicate '{$predicate}'", Z_ERROR_INVALID_INPUT);
}
$arr = is_string($object) ? [$object] : $object;
foreach ($arr as $uri) {
if (!preg_match('/^http:\\/\\/zotero.org\\/(users|groups)\\/[0-9]+\\/(publications\\/)?items\\/[A-Z0-9]{8}$/', $uri)) {
throw new Exception("'{$key}' values currently must be Zotero item URIs", Z_ERROR_INVALID_INPUT);
}
}
}
break;
case 'creators':
if (!is_array($val)) {
throw new Exception("'{$key}' property must be an array", Z_ERROR_INVALID_INPUT);
}
foreach ($val as $creator) {
$empty = true;
if (!isset($creator->creatorType)) {
throw new Exception("creator object must contain 'creatorType'", Z_ERROR_INVALID_INPUT);
}
if ((!isset($creator->name) || trim($creator->name) == "") && (!isset($creator->firstName) || trim($creator->firstName) == "") && (!isset($creator->lastName) || trim($creator->lastName) == "")) {
// On item creation, ignore single nameless creator,
// because that's in the item template that the API returns
if (sizeOf($val) == 1 && $isNew) {
continue;
} else {
throw new Exception("creator object must contain 'firstName'/'lastName' or 'name'", Z_ERROR_INVALID_INPUT);
}
}
foreach ($creator as $k => $v) {
switch ($k) {
case 'creatorType':
$creatorTypeID = Zotero_CreatorTypes::getID($v);
if (!$creatorTypeID) {
throw new Exception("'{$v}' is not a valid creator type", Z_ERROR_INVALID_INPUT);
}
$itemTypeID = Zotero_ItemTypes::getID($itemType);
if (!Zotero_CreatorTypes::isValidForItemType($creatorTypeID, $itemTypeID)) {
// Allow 'author' in all item types, but reject other invalid creator types
if ($creatorTypeID != Zotero_CreatorTypes::getID('author')) {
throw new Exception("'{$v}' is not a valid creator type for item type '{$itemType}'", Z_ERROR_INVALID_INPUT);
}
}
break;
case 'firstName':
if (!isset($creator->lastName)) {
throw new Exception("'lastName' creator field must be set if 'firstName' is set", Z_ERROR_INVALID_INPUT);
}
if (isset($creator->name)) {
throw new Exception("'firstName' and 'name' creator fields are mutually exclusive", Z_ERROR_INVALID_INPUT);
}
break;
case 'lastName':
if (!isset($creator->firstName)) {
throw new Exception("'firstName' creator field must be set if 'lastName' is set", Z_ERROR_INVALID_INPUT);
}
if (isset($creator->name)) {
throw new Exception("'lastName' and 'name' creator fields are mutually exclusive", Z_ERROR_INVALID_INPUT);
}
break;
case 'name':
if (isset($creator->firstName)) {
throw new Exception("'firstName' and 'name' creator fields are mutually exclusive", Z_ERROR_INVALID_INPUT);
}
if (isset($creator->lastName)) {
throw new Exception("'lastName' and 'name' creator fields are mutually exclusive", Z_ERROR_INVALID_INPUT);
}
break;
default:
throw new Exception("Invalid creator property '{$k}'", Z_ERROR_INVALID_INPUT);
}
$empty = false;
}
if ($empty) {
throw new Exception("Creator object is empty", Z_ERROR_INVALID_INPUT);
}
}
break;
case 'note':
switch ($itemType) {
case 'note':
case 'attachment':
break;
default:
throw new Exception("'note' property is valid only for note and attachment items", Z_ERROR_INVALID_INPUT);
}
break;
case 'attachments':
case 'notes':
if ($apiVersion > 1) {
throw new Exception("'{$key}' property is no longer supported", Z_ERROR_INVALID_INPUT);
}
if (!$isNew) {
throw new Exception("'{$key}' property is valid only for new items", Z_ERROR_INVALID_INPUT);
}
if (!is_array($val)) {
throw new Exception("'{$key}' property must be an array", Z_ERROR_INVALID_INPUT);
}
foreach ($val as $child) {
// Check child item type ('attachment' or 'note')
$t = substr($key, 0, -1);
if (isset($child->itemType) && $child->itemType != $t) {
throw new Exception("Child {$t} must be of itemType '{$t}'", Z_ERROR_INVALID_INPUT);
}
if ($key == 'note') {
if (!isset($child->note)) {
throw new Exception("'note' property not provided for child note", Z_ERROR_INVALID_INPUT);
}
}
}
break;
case 'deleted':
break;
// Attachment properties
// Attachment properties
case 'linkMode':
try {
$linkMode = Zotero_Attachments::linkModeNameToNumber($val, true);
} catch (Exception $e) {
throw new Exception("'{$val}' is not a valid linkMode", Z_ERROR_INVALID_INPUT);
}
// Don't allow changing of linkMode
if (!$isNew && $linkMode != $item->attachmentLinkMode) {
throw new Exception("Cannot change attachment linkMode", Z_ERROR_INVALID_INPUT);
}
break;
case 'contentType':
case 'charset':
case 'filename':
case 'md5':
case 'mtime':
if ($itemType != 'attachment') {
throw new Exception("'{$key}' is valid only for attachment items", Z_ERROR_INVALID_INPUT);
}
switch ($key) {
case 'filename':
case 'md5':
case 'mtime':
$lm = isset($json->linkMode) ? $json->linkMode : Zotero_Attachments::linkModeNumberToName($item->attachmentLinkMode);
if (strpos(strtolower($lm), 'imported_') !== 0) {
throw new Exception("'{$key}' is valid only for imported attachment items", Z_ERROR_INVALID_INPUT);
}
break;
}
switch ($key) {
case 'contentType':
case 'charset':
case 'filename':
$propName = 'attachment' . ucwords($key);
break;
case 'md5':
$propName = 'attachmentStorageHash';
break;
case 'mtime':
$propName = 'attachmentStorageModTime';
break;
}
if (Zotero_Libraries::getType($libraryID) == 'group') {
if ($item && $item->{$propName} !== $val || !$item && $val !== null && $val !== "") {
throw new Exception("Cannot change '{$key}' directly in group library", Z_ERROR_INVALID_INPUT);
}
} else {
if ($key == 'md5') {
if ($val && !preg_match("/^[a-f0-9]{32}\$/", $val)) {
throw new Exception("'{$val}' is not a valid MD5 hash", Z_ERROR_INVALID_INPUT);
}
}
}
break;
case 'accessDate':
if ($apiVersion >= 3 && $val !== '' && $val != 'CURRENT_TIMESTAMP' && !Zotero_Date::isSQLDate($val) && !Zotero_Date::isSQLDateTime($val) && !Zotero_Date::isISO8601($val)) {
throw new Exception("'{$key}' must be in ISO 8601 or UTC 'YYYY-MM-DD[ hh-mm-dd]' format or 'CURRENT_TIMESTAMP' ({$val})", Z_ERROR_INVALID_INPUT);
}
break;
case 'dateAdded':
if (!Zotero_Date::isSQLDateTime($val) && !Zotero_Date::isISO8601($val)) {
throw new Exception("'{$key}' must be in ISO 8601 or UTC 'YYYY-MM-DD hh-mm-dd' format", Z_ERROR_INVALID_INPUT);
}
if (!$isNew) {
// Convert ISO date to SQL date for equality comparison
if (Zotero_Date::isISO8601($val)) {
$val = Zotero_Date::iso8601ToSQL($val);
}
if ($val != $item->{$key}) {
throw new Exception("'{$key}' cannot be modified for existing items", Z_ERROR_INVALID_INPUT);
}
}
break;
case 'dateModified':
if (!Zotero_Date::isSQLDateTime($val) && !Zotero_Date::isISO8601($val)) {
throw new Exception("'{$key}' must be in ISO 8601 or UTC 'YYYY-MM-DD hh-mm-dd' format ({$val})", Z_ERROR_INVALID_INPUT);
}
break;
default:
if (!Zotero_ItemFields::getID($key)) {
throw new Exception("Invalid property '{$key}'", Z_ERROR_INVALID_INPUT);
}
if (is_array($val)) {
throw new Exception("Unexpected array for property '{$key}'", Z_ERROR_INVALID_INPUT);
}
break;
}
}
// Publications libraries have additional restrictions
if (Zotero_Libraries::getType($libraryID) == 'publications') {
Zotero_Publications::validateJSONItem($json);
}
}
/**
* Validate the object key from JSON and load the passed object with it
*
* @param object $object Zotero_Item, Zotero_Collection, or Zotero_Search
* @param json $json
* @return boolean True if the object exists, false if not
*/
public static function processJSONObjectKey($object, $json, $requestParams)
{
$objectType = Zotero_Utilities::getObjectTypeFromObject($object);
if (!in_array($objectType, array('item', 'collection', 'search'))) {
throw new Exception("Invalid object type");
}
if ($requestParams['v'] >= 3) {
$keyProp = 'key';
$versionProp = 'version';
} else {
$keyProp = $objectType . "Key";
$versionProp = $objectType == 'setting' ? 'version' : $objectType . "Version";
}
// Validate the object key if present and determine if the object is new
if (isset($json->{$keyProp})) {
if (!is_string($json->{$keyProp})) {
throw new Exception("'{$keyProp}' must be a string", Z_ERROR_INVALID_INPUT);
}
if (!Zotero_ID::isValidKey($json->{$keyProp})) {
throw new Exception("'" . $json->{$keyProp} . "' " . "is not a valid {$objectType} key", Z_ERROR_INVALID_INPUT);
}
if ($object->key) {
if ($json->{$keyProp} != $object->key) {
throw new HTTPException("'{$keyProp}' property in JSON does not match " . "{$objectType} key of request", 409);
}
$exists = !!$object->id;
} else {
$object->key = $json->{$keyProp};
$exists = !!$object->id;
}
} else {
$exists = !!$object->key;
}
return $exists;
}
/**
* @param {array<string>} $itemKeys
* @return {Boolean} TRUE if related items were changed, FALSE if not
*/
private function setRelatedItems($itemKeys) {
if (!is_array($itemKeys)) {
throw new Exception('$itemKeys must be an array');
}
$predicate = Zotero_Relations::$relatedItemPredicate;
$relations = $this->getRelations();
if (!isset($relations->$predicate)) {
$relations->$predicate = [];
}
else if (is_string($relations->$predicate)) {
$relations->$predicate = [$relations->$predicate];
}
$currentKeys = array_map(function ($objectURI) {
$key = substr($objectURI, -8);
return Zotero_ID::isValidKey($key) ? $key : false;
}, $relations->$predicate);
$currentKeys = array_filter($currentKeys);
$oldKeys = []; // items being kept
$newKeys = []; // new items
if (!$itemKeys) {
if (!$currentKeys) {
Z_Core::debug("No related items added", 4);
return false;
}
}
else {
foreach ($itemKeys as $itemKey) {
if ($itemKey == $this->key) {
Z_Core::debug("Can't relate item to itself in Zotero.Item.setRelatedItems()", 2);
continue;
}
if (in_array($itemKey, $currentKeys)) {
Z_Core::debug("Item {$this->key} is already related to item $itemKey");
$oldKeys[] = $itemKey;
continue;
}
// TODO: check if related on other side (like client)?
$newKeys[] = $itemKey;
}
}
// If new or changed keys, update relations with new related items
if ($newKeys || sizeOf($oldKeys) != sizeOf($currentKeys)) {
$prefix = Zotero_URI::getLibraryURI($this->libraryID) . "/items/";
$relations->$predicate = array_map(function ($key) use ($prefix) {
return $prefix . $key;
}, array_merge($oldKeys, $newKeys));
$this->setRelations($relations);
return true;
}
else {
Z_Core::debug('Related items not changed', 4);
return false;
}
}
private function checkValue($field, $value)
{
if (!property_exists($this, $field)) {
trigger_error("Invalid property '{$field}'", E_USER_ERROR);
}
// Data validation
switch ($field) {
case 'id':
case 'libraryID':
if (!Zotero_Utilities::isPosInt($value)) {
$this->invalidValueError($field, $value);
}
break;
case 'key':
if (!Zotero_ID::isValidKey($value)) {
$this->invalidValueError($field, $value);
}
break;
case 'dateAdded':
case 'dateModified':
if (!preg_match("/^[0-9]{4}\\-[0-9]{2}\\-[0-9]{2} ([0-1][0-9]|[2][0-3]):([0-5][0-9]):([0-5][0-9])\$/", $value)) {
$this->invalidValueError($field, $value);
}
break;
}
}
private function checkValue($field, $value)
{
if (!property_exists($this, '_' . $field)) {
trigger_error("Invalid property '{$field}'", E_USER_ERROR);
}
// Data validation
switch ($field) {
case 'id':
case 'libraryID':
if (!Zotero_Utilities::isPosInt($value)) {
$this->invalidValueError($field, $value);
}
break;
case 'key':
if (!Zotero_ID::isValidKey($value)) {
$this->invalidValueError($field, $value);
}
break;
case 'dateAdded':
case 'dateModified':
if (!preg_match("/^[0-9]{4}\\-[0-9]{2}\\-[0-9]{2} ([0-1][0-9]|[2][0-3]):([0-5][0-9]):([0-5][0-9])\$/", $value)) {
$this->invalidValueError($field, $value);
}
break;
case 'name':
if (mb_strlen($value) > Zotero_Collections::$maxLength) {
throw new Exception("Collection '" . $value . "' too long", Z_ERROR_COLLECTION_TOO_LONG);
}
break;
}
}
public function collections()
{
// Check for general library access
if (!$this->permissions->canAccess($this->objectLibraryID)) {
$this->e403();
}
if ($this->isWriteMethod()) {
// Check for library write access
if (!$this->permissions->canWrite($this->objectLibraryID)) {
$this->e403("Write access denied");
}
// Make sure library hasn't been modified
if (!$this->singleObject) {
$libraryTimestampChecked = $this->checkLibraryIfUnmodifiedSinceVersion();
}
Zotero_Libraries::updateVersionAndTimestamp($this->objectLibraryID);
}
$collectionIDs = array();
$collectionKeys = array();
$results = array();
// Single collection
if ($this->singleObject) {
$this->allowMethods(['HEAD', 'GET', 'PUT', 'PATCH', 'DELETE']);
if (!Zotero_ID::isValidKey($this->objectKey)) {
$this->e404();
}
$collection = Zotero_Collections::getByLibraryAndKey($this->objectLibraryID, $this->objectKey);
if ($this->isWriteMethod()) {
$collection = $this->handleObjectWrite('collection', $collection ? $collection : null);
$this->queryParams['content'] = ['json'];
}
if (!$collection) {
$this->e404("Collection not found");
}
$this->libraryVersion = $collection->version;
if ($this->method == 'HEAD') {
$this->end();
}
switch ($this->queryParams['format']) {
case 'atom':
$this->responseXML = Zotero_Collections::convertCollectionToAtom($collection, $this->queryParams);
break;
case 'json':
$json = $collection->toResponseJSON($this->queryParams, $this->permissions);
echo Zotero_Utilities::formatJSON($json);
break;
default:
throw new Exception("Unexpected format '" . $this->queryParams['format'] . "'");
}
} else {
$this->allowMethods(['HEAD', 'GET', 'POST', 'DELETE']);
$this->libraryVersion = Zotero_Libraries::getUpdatedVersion($this->objectLibraryID);
if ($this->scopeObject) {
$this->allowMethods(array('GET'));
switch ($this->scopeObject) {
case 'collections':
$collection = Zotero_Collections::getByLibraryAndKey($this->objectLibraryID, $this->scopeObjectKey);
if (!$collection) {
$this->e404("Collection not found");
}
$title = "Child Collections of ‘{$collection->name}'’";
$collectionIDs = $collection->getChildCollections();
break;
default:
throw new Exception("Invalid collections scope object '{$this->scopeObject}'");
}
} else {
// Top-level items
if ($this->subset == 'top') {
$this->allowMethods(array('GET'));
$title = "Top-Level Collections";
$results = Zotero_Collections::search($this->objectLibraryID, true, $this->queryParams);
} else {
// Create a collection
if ($this->method == 'POST') {
$this->queryParams['format'] = 'writereport';
$obj = $this->jsonDecode($this->body);
$results = Zotero_Collections::updateMultipleFromJSON($obj, $this->queryParams, $this->objectLibraryID, $this->userID, $this->permissions, $libraryTimestampChecked ? 0 : 1, null);
if ($cacheKey = $this->getWriteTokenCacheKey()) {
Z_Core::$MC->set($cacheKey, true, $this->writeTokenCacheTime);
}
if ($this->apiVersion < 2) {
$uri = Zotero_API::getCollectionsURI($this->objectLibraryID);
$keys = array_merge(get_object_vars($results['success']), get_object_vars($results['unchanged']));
$queryString = "collectionKey=" . urlencode(implode(",", $keys)) . "&format=atom&content=json&order=collectionKeyList&sort=asc";
if ($this->apiKey) {
$queryString .= "&key=" . $this->apiKey;
}
$uri .= "?" . $queryString;
$this->queryParams = Zotero_API::parseQueryParams($queryString, $this->action, true, $this->apiVersion);
$title = "Collections";
$results = Zotero_Collections::search($this->objectLibraryID, false, $this->queryParams);
}
} else {
if ($this->method == 'DELETE') {
Zotero_DB::beginTransaction();
foreach ($this->queryParams['collectionKey'] as $collectionKey) {
Zotero_Collections::delete($this->objectLibraryID, $collectionKey);
}
Zotero_DB::commit();
$this->e204();
} else {
$title = "Collections";
$results = Zotero_Collections::search($this->objectLibraryID, false, $this->queryParams);
}
}
}
}
if ($collectionIDs) {
$this->queryParams['collectionIDs'] = $collectionIDs;
$results = Zotero_Collections::search($this->objectLibraryID, false, $this->queryParams);
}
$options = ['action' => $this->action, 'uri' => $this->uri, 'results' => $results, 'requestParams' => $this->queryParams, 'permissions' => $this->permissions, 'head' => $this->method == 'HEAD'];
switch ($this->queryParams['format']) {
case 'atom':
$this->responseXML = Zotero_API::multiResponse(array_merge($options, ['title' => $this->getFeedNamePrefix($this->objectLibraryID) . $title]));
break;
case 'json':
case 'keys':
case 'versions':
case 'writereport':
Zotero_API::multiResponse($options);
break;
default:
throw new Exception("Unexpected format '" . $this->queryParams['format'] . "'");
}
}
$this->end();
}
public function items()
{
// Check for general library access
if (!$this->permissions->canAccess($this->objectLibraryID)) {
$this->e403();
}
if ($this->isWriteMethod()) {
// Check for library write access
if (!$this->permissions->canWrite($this->objectLibraryID)) {
$this->e403("Write access denied");
}
// Make sure library hasn't been modified
if (!$this->singleObject) {
$libraryTimestampChecked = $this->checkLibraryIfUnmodifiedSinceVersion();
}
// We don't update the library version in file mode, because currently
// to avoid conflicts in the client the timestamp can't change
// when the client updates file metadata
if (!$this->fileMode) {
Zotero_Libraries::updateVersionAndTimestamp($this->objectLibraryID);
}
}
$itemIDs = array();
$itemKeys = array();
$results = array();
$title = "";
//
// Single item
//
if ($this->singleObject) {
if ($this->fileMode) {
if ($this->fileView) {
$this->allowMethods(array('HEAD', 'GET', 'POST'));
} else {
$this->allowMethods(array('HEAD', 'GET', 'PUT', 'POST', 'PATCH'));
}
} else {
$this->allowMethods(array('HEAD', 'GET', 'PUT', 'PATCH', 'DELETE'));
}
if (!$this->objectLibraryID || !Zotero_ID::isValidKey($this->objectKey)) {
$this->e404();
}
$item = Zotero_Items::getByLibraryAndKey($this->objectLibraryID, $this->objectKey);
if ($item) {
// If no access to the note, don't show that it exists
if ($item->isNote() && !$this->permissions->canAccess($this->objectLibraryID, 'notes')) {
$this->e404();
}
// Make sure URL libraryID matches item libraryID
if ($this->objectLibraryID != $item->libraryID) {
$this->e404("Item does not exist");
}
// File access mode
if ($this->fileMode) {
$this->_handleFileRequest($item);
}
if ($this->scopeObject) {
switch ($this->scopeObject) {
// Remove item from collection
case 'collections':
$this->allowMethods(array('DELETE'));
$collection = Zotero_Collections::getByLibraryAndKey($this->objectLibraryID, $this->scopeObjectKey);
if (!$collection) {
$this->e404("Collection not found");
}
if (!$collection->hasItem($item->id)) {
$this->e404("Item not found in collection");
}
$collection->removeItem($item->id);
$this->e204();
default:
$this->e400();
}
}
} else {
// Possibly temporary workaround to block unnecessary full syncs
if ($this->fileMode && $this->httpAuth && $this->method == 'POST') {
// If > 2 requests for missing file, trigger a full sync via 404
$cacheKey = "apiMissingFile_" . $this->objectLibraryID . "_" . $this->objectKey;
$set = Z_Core::$MC->get($cacheKey);
if (!$set) {
Z_Core::$MC->set($cacheKey, 1, 86400);
} else {
if ($set < 2) {
Z_Core::$MC->increment($cacheKey);
} else {
Z_Core::$MC->delete($cacheKey);
$this->e404("A file sync error occurred. Please sync again.");
}
}
$this->e500("A file sync error occurred. Please sync again.");
}
}
if ($this->isWriteMethod()) {
$item = $this->handleObjectWrite('item', $item ? $item : null);
if ($this->apiVersion < 2 && ($this->method == 'PUT' || $this->method == 'PATCH')) {
$this->queryParams['format'] = 'atom';
$this->queryParams['content'] = ['json'];
}
}
if (!$item) {
$this->e404("Item does not exist");
}
$this->libraryVersion = $item->version;
if ($this->method == 'HEAD') {
$this->end();
}
// Display item
switch ($this->queryParams['format']) {
case 'atom':
$this->responseXML = Zotero_Items::convertItemToAtom($item, $this->queryParams, $this->permissions);
break;
case 'bib':
echo Zotero_Cite::getBibliographyFromCitationServer(array($item), $this->queryParams);
break;
case 'csljson':
$json = Zotero_Cite::getJSONFromItems(array($item), true);
echo Zotero_Utilities::formatJSON($json);
break;
case 'json':
$json = $item->toResponseJSON($this->queryParams, $this->permissions);
echo Zotero_Utilities::formatJSON($json);
break;
default:
$export = Zotero_Translate::doExport(array($item), $this->queryParams['format']);
$this->queryParams['format'] = null;
header("Content-Type: " . $export['mimeType']);
echo $export['body'];
break;
}
} else {
$this->allowMethods(array('HEAD', 'GET', 'POST', 'DELETE'));
$this->libraryVersion = Zotero_Libraries::getUpdatedVersion($this->objectLibraryID);
$includeTrashed = $this->queryParams['includeTrashed'];
if ($this->scopeObject) {
$this->allowMethods(array('GET', 'POST'));
switch ($this->scopeObject) {
case 'collections':
// TEMP
if (Zotero_ID::isValidKey($this->scopeObjectKey)) {
$collection = Zotero_Collections::getByLibraryAndKey($this->objectLibraryID, $this->scopeObjectKey);
} else {
$collection = false;
}
if (!$collection) {
// If old collectionID, redirect
if ($this->method == 'GET' && Zotero_Utilities::isPosInt($this->scopeObjectKey)) {
$collection = Zotero_Collections::get($this->objectLibraryID, $this->scopeObjectKey);
if ($collection) {
$qs = !empty($_SERVER['QUERY_STRING']) ? '?' . $_SERVER['QUERY_STRING'] : '';
$base = Zotero_API::getCollectionURI($collection);
$this->redirect($base . "/items" . $qs, 301);
}
}
$this->e404("Collection not found");
}
// Add items to collection
if ($this->method == 'POST') {
$itemKeys = explode(' ', $this->body);
$itemIDs = array();
foreach ($itemKeys as $key) {
try {
$item = Zotero_Items::getByLibraryAndKey($this->objectLibraryID, $key);
} catch (Exception $e) {
if ($e->getCode() == Z_ERROR_OBJECT_LIBRARY_MISMATCH) {
$item = false;
} else {
throw $e;
}
}
if (!$item) {
throw new Exception("Item '{$key}' not found in library", Z_ERROR_INVALID_INPUT);
}
if ($item->getSource()) {
throw new Exception("Child items cannot be added to collections directly", Z_ERROR_INVALID_INPUT);
}
$itemIDs[] = $item->id;
}
$collection->addItems($itemIDs);
$this->e204();
}
if ($this->subset == 'top' || $this->apiVersion < 2) {
$title = "Top-Level Items in Collection ‘" . $collection->name . "’";
$itemIDs = $collection->getItems();
} else {
$title = "Items in Collection ‘" . $collection->name . "’";
$itemIDs = $collection->getItems(true);
}
break;
case 'tags':
if ($this->apiVersion >= 2) {
$this->e404();
}
$this->allowMethods(array('GET'));
$tagIDs = Zotero_Tags::getIDs($this->objectLibraryID, $this->scopeObjectName);
if (!$tagIDs) {
$this->e404("Tag not found");
}
foreach ($tagIDs as $tagID) {
$tag = new Zotero_Tag();
$tag->libraryID = $this->objectLibraryID;
$tag->id = $tagID;
// Use a real tag name, in case case differs
if (!$title) {
$title = "Items of Tag ‘" . $tag->name . "’";
}
$itemKeys = array_merge($itemKeys, $tag->getLinkedItems(true));
}
$itemKeys = array_unique($itemKeys);
break;
default:
$this->e404();
}
} else {
// Top-level items
if ($this->subset == 'top') {
$this->allowMethods(array('GET'));
$title = "Top-Level Items";
$results = Zotero_Items::search($this->objectLibraryID, true, $this->queryParams, $includeTrashed, $this->permissions);
} else {
if ($this->subset == 'trash') {
$this->allowMethods(array('GET'));
$title = "Deleted Items";
$this->queryParams['trashedItemsOnly'] = true;
$includeTrashed = true;
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
} else {
if ($this->subset == 'children') {
$item = Zotero_Items::getByLibraryAndKey($this->objectLibraryID, $this->objectKey);
if (!$item) {
$this->e404("Item not found");
}
if ($item->isAttachment()) {
$this->e400("/children cannot be called on attachment items");
}
if ($item->isNote()) {
$this->e400("/children cannot be called on note items");
}
if ($item->getSource()) {
$this->e400("/children cannot be called on child items");
}
// Create new child items
if ($this->method == 'POST') {
if ($this->apiVersion >= 2) {
$this->allowMethods(array('GET'));
}
Zotero_DB::beginTransaction();
$obj = $this->jsonDecode($this->body);
$results = Zotero_Items::updateMultipleFromJSON($obj, $this->queryParams, $this->objectLibraryID, $this->userID, $this->permissions, $libraryTimestampChecked ? 0 : 1, $item);
Zotero_DB::commit();
if ($cacheKey = $this->getWriteTokenCacheKey()) {
Z_Core::$MC->set($cacheKey, true, $this->writeTokenCacheTime);
}
$uri = Zotero_API::getItemsURI($this->objectLibraryID);
$keys = array_merge(get_object_vars($results['success']), get_object_vars($results['unchanged']));
$queryString = "itemKey=" . urlencode(implode(",", $keys)) . "&format=atom&content=json&order=itemKeyList&sort=asc";
if ($this->apiKey) {
$queryString .= "&key=" . $this->apiKey;
}
$uri .= "?" . $queryString;
$this->queryParams = Zotero_API::parseQueryParams($queryString, $this->action, false);
$this->responseCode = 201;
$title = "Items";
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
} else {
$title = "Child Items of ‘" . $item->getDisplayTitle() . "’";
$notes = $item->getNotes();
$attachments = $item->getAttachments();
$itemIDs = array_merge($notes, $attachments);
}
} else {
// Create new items
if ($this->method == 'POST') {
$this->queryParams['format'] = 'writereport';
$obj = $this->jsonDecode($this->body);
// Server-side translation
if (isset($obj->url)) {
if ($this->apiVersion == 1) {
Zotero_DB::beginTransaction();
}
$token = $this->getTranslationToken($obj);
$results = Zotero_Items::addFromURL($obj, $this->queryParams, $this->objectLibraryID, $this->userID, $this->permissions, $token);
if ($this->apiVersion == 1) {
Zotero_DB::commit();
}
// Multiple choices
if ($results instanceof stdClass) {
$this->queryParams['format'] = null;
header("Content-Type: application/json");
if ($this->queryParams['v'] >= 2) {
echo Zotero_Utilities::formatJSON(['url' => $obj->url, 'token' => $token, 'items' => $results->select]);
} else {
echo Zotero_Utilities::formatJSON($results->select);
}
$this->e300();
} else {
if (is_int($results)) {
switch ($results) {
case 501:
$this->e501("No translators found for URL");
break;
default:
$this->e500("Error translating URL");
}
} else {
if ($this->apiVersion == 1) {
$uri = Zotero_API::getItemsURI($this->objectLibraryID);
$keys = array_merge(get_object_vars($results['success']), get_object_vars($results['unchanged']));
$queryString = "itemKey=" . urlencode(implode(",", $keys)) . "&format=atom&content=json&order=itemKeyList&sort=asc";
if ($this->apiKey) {
$queryString .= "&key=" . $this->apiKey;
}
$uri .= "?" . $queryString;
$this->queryParams = Zotero_API::parseQueryParams($queryString, $this->action, false);
$this->responseCode = 201;
$title = "Items";
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
}
}
}
// Otherwise return write status report
} else {
if ($this->apiVersion < 2) {
Zotero_DB::beginTransaction();
}
$results = Zotero_Items::updateMultipleFromJSON($obj, $this->queryParams, $this->objectLibraryID, $this->userID, $this->permissions, $libraryTimestampChecked ? 0 : 1, null);
if ($this->apiVersion < 2) {
Zotero_DB::commit();
$uri = Zotero_API::getItemsURI($this->objectLibraryID);
$keys = array_merge(get_object_vars($results['success']), get_object_vars($results['unchanged']));
$queryString = "itemKey=" . urlencode(implode(",", $keys)) . "&format=atom&content=json&order=itemKeyList&sort=asc";
if ($this->apiKey) {
$queryString .= "&key=" . $this->apiKey;
}
$uri .= "?" . $queryString;
$this->queryParams = Zotero_API::parseQueryParams($queryString, $this->action, false);
$this->responseCode = 201;
$title = "Items";
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
}
}
if ($cacheKey = $this->getWriteTokenCacheKey()) {
Z_Core::$MC->set($cacheKey, true, $this->writeTokenCacheTime);
}
} else {
if ($this->method == 'DELETE') {
Zotero_DB::beginTransaction();
foreach ($this->queryParams['itemKey'] as $itemKey) {
Zotero_Items::delete($this->objectLibraryID, $itemKey);
}
Zotero_DB::commit();
$this->e204();
} else {
$title = "Items";
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
}
}
}
}
}
}
if ($itemIDs || $itemKeys) {
if ($itemIDs) {
$this->queryParams['itemIDs'] = $itemIDs;
}
if ($itemKeys) {
$this->queryParams['itemKey'] = $itemKeys;
}
$results = Zotero_Items::search($this->objectLibraryID, false, $this->queryParams, $includeTrashed, $this->permissions);
}
if ($this->queryParams['format'] == 'bib') {
$maxBibItems = Zotero_API::MAX_BIBLIOGRAPHY_ITEMS;
if ($results['total'] > $maxBibItems) {
$this->e413("Cannot generate bibliography with more than {$maxBibItems} items");
}
}
$this->generateMultiResponse($results, $title);
}
$this->end();
}
