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);
}
}
/**
* @param string|int $field Field name or ID
* @param mixed $value Field value
* @param bool $loadIn Populate the data fields without marking as changed
*/
public function setField($field, $value, $loadIn = false)
{
if (empty($field)) {
throw new Exception("Field not specified");
}
// Set id, libraryID, and key without loading data first
switch ($field) {
case 'id':
case 'libraryID':
case 'key':
// Allow libraryID to be set if empty, even if primary data is loaded,
// which happens if an item type is set in the constructor
if ($field == 'libraryID' && !$this->{$field}) {
} else {
if ($this->loaded['primaryData']) {
throw new Exception("Cannot set {$field} after item is already loaded");
}
}
//this._checkValue(field, val);
$this->{$field} = $value;
return;
}
if ($this->id || $this->key) {
if (!$this->loaded['primaryData']) {
$this->loadPrimaryData(true);
}
} else {
$this->loaded['primaryData'] = true;
}
if ($field == 'dateAdded' || $field == 'dateModified' || $field == 'accessDate') {
if (Zotero_Date::isISO8601($value)) {
$value = Zotero_Date::iso8601ToSQL($value);
}
}
// Primary field
if (isset(Zotero_Items::$primaryFields[$field])) {
if ($loadIn) {
throw new Exception("Cannot set primary field {$field} in loadIn mode");
}
switch ($field) {
case 'id':
case 'version':
trigger_error("Primary field '{$field}' cannot be changed through setField()", E_USER_ERROR);
}
if (!Zotero_ItemFields::validate($field, $value)) {
trigger_error("Value '{$value}' of type " . gettype($value) . " does not validate for field '{$field}'", E_USER_ERROR);
}
if ($this->{$field} == $value) {
return false;
}
Z_Core::debug("Field {$field} has changed from {$this->{$field}} to {$value}", 4);
if ($field == 'itemTypeID') {
$this->setType($value, $loadIn);
} else {
$this->{$field} = $value;
$this->changed['primaryData'][$field] = true;
}
return true;
}
//
// itemData field
//
if (!$this->itemTypeID) {
trigger_error('Item type must be set before setting field data', E_USER_ERROR);
}
// If existing item, load field data first unless we're already in
// the middle of a load
if ($this->id) {
if (!$loadIn && !$this->loaded['itemData']) {
$this->loadItemData();
}
} else {
$this->loaded['itemData'] = true;
}
$fieldID = Zotero_ItemFields::getID($field);
if (!$fieldID) {
throw new Exception("'{$field}' is not a valid itemData field.", Z_ERROR_INVALID_INPUT);
}
if ($value === "") {
$value = false;
}
if ($value !== false && !Zotero_ItemFields::isValidForType($fieldID, $this->itemTypeID)) {
throw new Exception("'{$field}' is not a valid field for type '" . Zotero_ItemTypes::getName($this->itemTypeID) . "'", Z_ERROR_INVALID_INPUT);
}
if (!$loadIn) {
// Save date field as multipart date
if (Zotero_ItemFields::isFieldOfBase($fieldID, 'date') && !Zotero_Date::isMultipart($value)) {
$value = Zotero_Date::strToMultipart($value);
if ($value === "") {
$value = false;
}
} else {
if ($fieldID == Zotero_ItemFields::getID('accessDate')) {
if ($value && (!Zotero_Date::isSQLDate($value) && !Zotero_Date::isSQLDateTime($value) && $value != 'CURRENT_TIMESTAMP')) {
Z_Core::debug("Discarding invalid accessDate '" . $value . "'");
return false;
}
}
}
// If existing value, make sure it's actually changing
if (!isset($this->itemData[$fieldID]) && $value === false || isset($this->itemData[$fieldID]) && $this->itemData[$fieldID] === $value) {
return false;
}
//Z_Core::debug("Field $field has changed from {$this->itemData[$fieldID]} to $value", 4);
// TODO: Save a copy of the object before modifying?
}
$this->itemData[$fieldID] = $value;
if (!$loadIn) {
$this->changed['itemData'][$fieldID] = true;
}
return true;
}
/**
* @param string|int $field Field name or ID
* @param mixed $value Field value
* @param bool $loadIn Populate the data fields without marking as changed
*/
public function setField($field, $value, $loadIn=false) {
if (is_string($value)) {
$value = trim($value);
}
if (empty($field)) {
throw new Exception("Field not specified");
}
if ($field == 'id' || $field == 'libraryID' || $field == 'key') {
return $this->setIdentifier($field, $value);
}
if (($this->_id || $this->_key) && !$this->loaded['primaryData']) {
$this->loadPrimaryData();
}
// Primary field
if (Zotero_Items::isPrimaryField($field)) {
if ($loadIn) {
throw new Exception("Cannot set primary field $field in loadIn mode");
}
switch ($field) {
case 'itemTypeID':
break;
case 'dateAdded':
case 'dateModified':
if (Zotero_Date::isISO8601($value)) {
$value = Zotero_Date::iso8601ToSQL($value);
}
break;
case 'version':
$value = (int) $value;
break;
case 'synced':
$value = !!$value;
default:
throw new Exception("Primary field $field cannot be changed");
}
if ($this->{"_$field"} === $value) {
Z_Core::debug("Field '$field' has not changed", 4);
return false;
}
Z_Core::debug("Field $field has changed from " . $this->{"_$field"} . " to $value", 4);
if ($field == 'itemTypeID') {
$this->setType($value, $loadIn);
}
else {
$this->{"_$field"} = $value;
$this->changed['primaryData'][$field] = true;
}
return true;
}
//
// itemData field
//
if ($field == 'accessDate' && Zotero_Date::isISO8601($value)) {
$value = Zotero_Date::iso8601ToSQL($value);
}
if (!$this->_itemTypeID) {
trigger_error('Item type must be set before setting field data', E_USER_ERROR);
}
// If existing item, load field data first unless we're already in
// the middle of a load
if ($this->_id) {
if (!$loadIn && !$this->loaded['itemData']) {
$this->loadItemData();
}
}
else {
$this->loaded['itemData'] = true;
}
$fieldID = Zotero_ItemFields::getID($field);
if (!$fieldID) {
throw new Exception("'$field' is not a valid itemData field.", Z_ERROR_INVALID_INPUT);
}
if ($value === "") {
$value = false;
}
if ($value !== false && !Zotero_ItemFields::isValidForType($fieldID, $this->_itemTypeID)) {
throw new Exception("'$field' is not a valid field for type '"
. Zotero_ItemTypes::getName($this->_itemTypeID) . "'", Z_ERROR_INVALID_INPUT);
}
if (!$loadIn) {
// Save date field as multipart date
if (Zotero_ItemFields::isFieldOfBase($fieldID, 'date') &&
!Zotero_Date::isMultipart($value)) {
$value = Zotero_Date::strToMultipart($value);
if ($value === "") {
$value = false;
}
}
// Validate access date
else if ($fieldID == Zotero_ItemFields::getID('accessDate')) {
if ($value && (!Zotero_Date::isSQLDate($value) &&
!Zotero_Date::isSQLDateTime($value) &&
$value != 'CURRENT_TIMESTAMP')) {
Z_Core::debug("Discarding invalid accessDate '" . $value . "'");
return false;
}
}
// If existing value, make sure it's actually changing
if ((!isset($this->itemData[$fieldID]) && $value === false) ||
(isset($this->itemData[$fieldID]) && $this->itemData[$fieldID] === $value)) {
return false;
}
//Z_Core::debug("Field $field has changed from {$this->itemData[$fieldID]} to $value", 4);
// TODO: Save a copy of the object before modifying?
}
$this->itemData[$fieldID] = $value;
if (!$loadIn) {
if (!isset($changed['itemData'])) {
$changed['itemData'] = [];
}
$this->changed['itemData'][$fieldID] = true;
}
return true;
}
protected function assertISO8601Date($date)
{
$this->assertTrue(\Zotero_Date::isISO8601($date));
}
