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-rw-r--r--engine/classes/ElggAttributeLoader.php199
-rw-r--r--engine/classes/ElggAutoP.php309
-rw-r--r--engine/classes/ElggDiskFilestore.php10
-rw-r--r--engine/classes/ElggEntity.php44
-rw-r--r--engine/classes/ElggGroup.php37
-rw-r--r--engine/classes/ElggGroupItemVisibility.php93
-rw-r--r--engine/classes/ElggMenuBuilder.php32
-rw-r--r--engine/classes/ElggMenuItem.php3
-rw-r--r--engine/classes/ElggMetadata.php34
-rw-r--r--engine/classes/ElggObject.php41
-rw-r--r--engine/classes/ElggPAM.php8
-rw-r--r--engine/classes/ElggPlugin.php72
-rw-r--r--engine/classes/ElggPluginManifest.php2
-rw-r--r--engine/classes/ElggPluginManifestParser.php6
-rw-r--r--engine/classes/ElggSession.php14
-rw-r--r--engine/classes/ElggSite.php48
-rw-r--r--engine/classes/ElggStaticVariableCache.php4
-rw-r--r--engine/classes/ElggUser.php36
-rw-r--r--engine/classes/ElggVolatileMetadataCache.php347
-rw-r--r--engine/classes/ElggXMLElement.php115
-rw-r--r--engine/classes/IncompleteEntityException.php10
21 files changed, 1230 insertions, 234 deletions
diff --git a/engine/classes/ElggAttributeLoader.php b/engine/classes/ElggAttributeLoader.php
new file mode 100644
index 000000000..602bb8bae
--- /dev/null
+++ b/engine/classes/ElggAttributeLoader.php
@@ -0,0 +1,199 @@
+<?php
+
+/**
+ * Loads ElggEntity attributes from DB or validates those passed in via constructor
+ *
+ * @access private
+ */
+class ElggAttributeLoader {
+
+ /**
+ * @var array names of attributes in all entities
+ */
+ protected static $primary_attr_names = array(
+ 'guid',
+ 'type',
+ 'subtype',
+ 'owner_guid',
+ 'container_guid',
+ 'site_guid',
+ 'access_id',
+ 'time_created',
+ 'time_updated',
+ 'last_action',
+ 'enabled'
+ );
+
+ /**
+ * @var array names of secondary attributes required for the entity
+ */
+ protected $secondary_attr_names = array();
+
+ /**
+ * @var string entity type (not class) required for fetched primaries
+ */
+ protected $required_type;
+
+ /**
+ * @var array
+ */
+ protected $initialized_attributes;
+
+ /**
+ * @var string class of object being loaded
+ */
+ protected $class;
+
+ /**
+ * @var bool should access control be considered when fetching entity?
+ */
+ public $requires_access_control = true;
+
+ /**
+ * @var callable function used to load attributes from {prefix}entities table
+ */
+ public $primary_loader = 'get_entity_as_row';
+
+ /**
+ * @var callable function used to load attributes from secondary table
+ */
+ public $secondary_loader = '';
+
+ /**
+ * @var callable function used to load all necessary attributes
+ */
+ public $full_loader = '';
+
+ /**
+ * @param string $class class of object being loaded
+ * @param string $required_type entity type this is being used to populate
+ * @param array $initialized_attrs attributes after initializeAttributes() has been run
+ * @throws InvalidArgumentException
+ */
+ public function __construct($class, $required_type, array $initialized_attrs) {
+ if (!is_string($class)) {
+ throw new InvalidArgumentException('$class must be a class name.');
+ }
+ $this->class = $class;
+
+ if (!is_string($required_type)) {
+ throw new InvalidArgumentException('$requiredType must be a system entity type.');
+ }
+ $this->required_type = $required_type;
+
+ $this->initialized_attributes = $initialized_attrs;
+ unset($initialized_attrs['tables_split'], $initialized_attrs['tables_loaded']);
+ $all_attr_names = array_keys($initialized_attrs);
+ $this->secondary_attr_names = array_diff($all_attr_names, self::$primary_attr_names);
+ }
+
+ protected function isMissingPrimaries($row) {
+ return array_diff(self::$primary_attr_names, array_keys($row)) !== array();
+ }
+
+ protected function isMissingSecondaries($row) {
+ return array_diff($this->secondary_attr_names, array_keys($row)) !== array();
+ }
+
+ protected function checkType($row) {
+ if ($row['type'] !== $this->required_type) {
+ $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($row['guid'], $this->class));
+ throw new InvalidClassException($msg);
+ }
+ }
+
+ /**
+ * Get all required attributes for the entity, validating any that are passed in. Returns empty array
+ * if can't be loaded (Check $failure_reason).
+ *
+ * This function splits loading between "primary" attributes (those in {prefix}entities table) and
+ * "secondary" attributes (e.g. those in {prefix}objects_entity), but can load all at once if a
+ * combined loader is available.
+ *
+ * @param mixed $row a row loaded from DB (array or stdClass) or a GUID
+ * @return array will be empty if failed to load all attributes (access control or entity doesn't exist)
+ *
+ * @throws InvalidArgumentException|LogicException|IncompleteEntityException
+ */
+ public function getRequiredAttributes($row) {
+ if (!is_array($row) && !($row instanceof stdClass)) {
+ // assume row is the GUID
+ $row = array('guid' => $row);
+ }
+ $row = (array) $row;
+ if (empty($row['guid'])) {
+ throw new InvalidArgumentException('$row must be or contain a GUID');
+ }
+
+ // these must be present to support isFullyLoaded()
+ foreach (array('tables_split', 'tables_loaded') as $key) {
+ if (isset($this->initialized_attributes[$key])) {
+ $row[$key] = $this->initialized_attributes[$key];
+ }
+ }
+
+ $was_missing_primaries = $this->isMissingPrimaries($row);
+ $was_missing_secondaries = $this->isMissingSecondaries($row);
+
+ // some types have a function to load all attributes at once, it should be faster
+ if (($was_missing_primaries || $was_missing_secondaries) && is_callable($this->full_loader)) {
+ $fetched = (array) call_user_func($this->full_loader, $row['guid']);
+ if (!$fetched) {
+ return array();
+ }
+ $row = array_merge($row, $fetched);
+ $this->checkType($row);
+ } else {
+ if ($was_missing_primaries) {
+ if (!is_callable($this->primary_loader)) {
+ throw new LogicException('Primary attribute loader must be callable');
+ }
+ if (!$this->requires_access_control) {
+ $ignoring_access = elgg_set_ignore_access();
+ }
+ $fetched = (array) call_user_func($this->primary_loader, $row['guid']);
+ if (!$this->requires_access_control) {
+ elgg_set_ignore_access($ignoring_access);
+ }
+ if (!$fetched) {
+ return array();
+ }
+ $row = array_merge($row, $fetched);
+ }
+
+ // We must test type before trying to load the secondaries so that InvalidClassException
+ // gets thrown. Otherwise the secondary loader will fail and return false.
+ $this->checkType($row);
+
+ if ($was_missing_secondaries) {
+ if (!is_callable($this->secondary_loader)) {
+ throw new LogicException('Secondary attribute loader must be callable');
+ }
+ $fetched = (array) call_user_func($this->secondary_loader, $row['guid']);
+ if (!$fetched) {
+ if ($row['type'] === 'site') {
+ // A special case is needed for sites: When vanilla ElggEntities are created and
+ // saved, these are stored w/ type "site", but with no sites_entity row. These
+ // are probably only created in the unit tests.
+ // @todo Don't save vanilla ElggEntities with type "site"
+ $row['guid'] = (int) $row['guid'];
+ return $row;
+ }
+ throw new IncompleteEntityException("Secondary loader failed to return row for {$row['guid']}");
+ }
+ $row = array_merge($row, $fetched);
+ }
+ }
+
+ // loading complete: re-check missing and check type
+ if (($was_missing_primaries && $this->isMissingPrimaries($row))
+ || ($was_missing_secondaries && $this->isMissingSecondaries($row))) {
+ throw new LogicException('Attribute loaders failed to return proper attributes');
+ }
+
+ // guid needs to be an int http://trac.elgg.org/ticket/4111
+ $row['guid'] = (int) $row['guid'];
+
+ return $row;
+ }
+}
diff --git a/engine/classes/ElggAutoP.php b/engine/classes/ElggAutoP.php
new file mode 100644
index 000000000..89d77e583
--- /dev/null
+++ b/engine/classes/ElggAutoP.php
@@ -0,0 +1,309 @@
+<?php
+
+/**
+ * Create wrapper P and BR elements in HTML depending on newlines. Useful when
+ * users use newlines to signal line and paragraph breaks. In all cases output
+ * should be well-formed markup.
+ *
+ * In DIV elements, Ps are only added when there would be at
+ * least two of them.
+ */
+class ElggAutoP {
+
+ public $encoding = 'UTF-8';
+
+ /**
+ * @var DOMDocument
+ */
+ protected $_doc = null;
+
+ /**
+ * @var DOMXPath
+ */
+ protected $_xpath = null;
+
+ protected $_blocks = 'address article area aside blockquote caption col colgroup dd
+ details div dl dt fieldset figure figcaption footer form h1 h2 h3 h4 h5 h6 header
+ hr hgroup legend map math menu nav noscript p pre section select style summary
+ table tbody td tfoot th thead tr ul ol option li';
+
+ /**
+ * @var array
+ */
+ protected $_inlines = 'a abbr audio b button canvas caption cite code command datalist
+ del dfn em embed i iframe img input ins kbd keygen label map mark meter object
+ output progress q rp rt ruby s samp script select small source span strong style
+ sub sup textarea time var video wbr';
+
+ /**
+ * Descend into these elements to add Ps
+ *
+ * @var array
+ */
+ protected $_descendList = 'article aside blockquote body details div footer form
+ header section';
+
+ /**
+ * Add Ps inside these elements
+ *
+ * @var array
+ */
+ protected $_alterList = 'article aside blockquote body details div footer header
+ section';
+
+ protected $_unique = '';
+
+ public function __construct() {
+ $this->_blocks = preg_split('@\\s+@', $this->_blocks);
+ $this->_descendList = preg_split('@\\s+@', $this->_descendList);
+ $this->_alterList = preg_split('@\\s+@', $this->_alterList);
+ $this->_inlines = preg_split('@\\s+@', $this->_inlines);
+ $this->_unique = md5(__FILE__);
+ }
+
+ /**
+ * Intance of class for singleton pattern.
+ * @var ElggAutoP
+ */
+ private static $instance;
+
+ /**
+ * Singleton pattern.
+ * @return ElggAutoP
+ */
+ public static function getInstance() {
+ $className = __CLASS__;
+ if (!(self::$instance instanceof $className)) {
+ self::$instance = new $className();
+ }
+ return self::$instance;
+ }
+
+ /**
+ * Create wrapper P and BR elements in HTML depending on newlines. Useful when
+ * users use newlines to signal line and paragraph breaks. In all cases output
+ * should be well-formed markup.
+ *
+ * In DIV, LI, TD, and TH elements, Ps are only added when their would be at
+ * least two of them.
+ *
+ * @param string $html snippet
+ * @return string|false output or false if parse error occurred
+ */
+ public function process($html) {
+ // normalize whitespace
+ $html = str_replace(array("\r\n", "\r"), "\n", $html);
+
+ // allows preserving entities untouched
+ $html = str_replace('&', $this->_unique . 'AMP', $html);
+
+ $this->_doc = new DOMDocument();
+
+ // parse to DOM, suppressing loadHTML warnings
+ // http://www.php.net/manual/en/domdocument.loadhtml.php#95463
+ libxml_use_internal_errors(true);
+
+ if (!$this->_doc->loadHTML("<html><meta http-equiv='content-type' "
+ . "content='text/html; charset={$this->encoding}'><body>{$html}</body>"
+ . "</html>")) {
+ return false;
+ }
+
+ $this->_xpath = new DOMXPath($this->_doc);
+ // start processing recursively at the BODY element
+ $nodeList = $this->_xpath->query('//body[1]');
+ $this->_addParagraphs($nodeList->item(0));
+
+ // serialize back to HTML
+ $html = $this->_doc->saveHTML();
+
+ // split AUTOPs into multiples at /\n\n+/
+ $html = preg_replace('/(' . $this->_unique . 'NL){2,}/', '</autop><autop>', $html);
+ $html = str_replace(array($this->_unique . 'BR', $this->_unique . 'NL', '<br>'),
+ '<br />',
+ $html);
+ $html = str_replace('<br /></autop>', '</autop>', $html);
+
+ // re-parse so we can handle new AUTOP elements
+
+ if (!$this->_doc->loadHTML($html)) {
+ return false;
+ }
+ // must re-create XPath object after DOM load
+ $this->_xpath = new DOMXPath($this->_doc);
+
+ // strip AUTOPs that only have comments/whitespace
+ foreach ($this->_xpath->query('//autop') as $autop) {
+ $hasContent = false;
+ if (trim($autop->textContent) !== '') {
+ $hasContent = true;
+ } else {
+ foreach ($autop->childNodes as $node) {
+ if ($node->nodeType === XML_ELEMENT_NODE) {
+ $hasContent = true;
+ break;
+ }
+ }
+ }
+ if (!$hasContent) {
+ // strip w/ preg_replace later (faster than moving nodes out)
+ $autop->setAttribute("r", "1");
+ }
+ }
+
+ // remove a single AUTOP inside certain elements
+ foreach ($this->_xpath->query('//div') as $el) {
+ $autops = $this->_xpath->query('./autop', $el);
+ if ($autops->length === 1) {
+ // strip w/ preg_replace later (faster than moving nodes out)
+ $autops->item(0)->setAttribute("r", "1");
+ }
+ }
+
+ $html = $this->_doc->saveHTML();
+
+ // trim to the contents of BODY
+ $bodyStart = strpos($html, '<body>');
+ $bodyEnd = strpos($html, '</body>', $bodyStart + 6);
+ $html = substr($html, $bodyStart + 6, $bodyEnd - $bodyStart - 6);
+
+ // strip AUTOPs that should be removed
+ $html = preg_replace('@<autop r="1">(.*?)</autop>@', '\\1', $html);
+
+ // commit to converting AUTOPs to Ps
+ $html = str_replace('<autop>', "\n<p>", $html);
+ $html = str_replace('</autop>', "</p>\n", $html);
+
+ $html = str_replace('<br>', '<br />', $html);
+ $html = str_replace($this->_unique . 'AMP', '&', $html);
+ return $html;
+ }
+
+ /**
+ * Add P and BR elements as necessary
+ *
+ * @param DOMElement $el
+ */
+ protected function _addParagraphs(DOMElement $el) {
+ // no need to recurse, just queue up
+ $elsToProcess = array($el);
+ $inlinesToProcess = array();
+ while ($el = array_shift($elsToProcess)) {
+ // if true, we can alter all child nodes, if not, we'll just call
+ // _addParagraphs on each element in the descendInto list
+ $alterInline = in_array($el->nodeName, $this->_alterList);
+
+ // inside affected elements, we want to trim leading whitespace from
+ // the first text node
+ $ltrimFirstTextNode = true;
+
+ // should we open a new AUTOP element to move inline elements into?
+ $openP = true;
+ $autop = null;
+
+ // after BR, ignore a newline
+ $isFollowingBr = false;
+
+ $node = $el->firstChild;
+ while (null !== $node) {
+ if ($alterInline) {
+ if ($openP) {
+ $openP = false;
+ // create a P to move inline content into (this may be removed later)
+ $autop = $el->insertBefore($this->_doc->createElement('autop'), $node);
+ }
+ }
+
+ $isElement = ($node->nodeType === XML_ELEMENT_NODE);
+ if ($isElement) {
+ $elName = $node->nodeName;
+ }
+ $isBlock = ($isElement && in_array($elName, $this->_blocks));
+
+ if ($alterInline) {
+ $isInline = $isElement && ! $isBlock;
+ $isText = ($node->nodeType === XML_TEXT_NODE);
+ $isLastInline = (! $node->nextSibling
+ || ($node->nextSibling->nodeType === XML_ELEMENT_NODE
+ && in_array($node->nextSibling->nodeName, $this->_blocks)));
+ if ($isElement) {
+ $isFollowingBr = ($node->nodeName === 'br');
+ }
+
+ if ($isText) {
+ $nodeText = $node->nodeValue;
+ if ($ltrimFirstTextNode) {
+ $nodeText = ltrim($nodeText);
+ $ltrimFirstTextNode = false;
+ }
+ if ($isFollowingBr && preg_match('@^[ \\t]*\\n[ \\t]*@', $nodeText, $m)) {
+ // if a user ends a line with <br>, don't add a second BR
+ $nodeText = substr($nodeText, strlen($m[0]));
+ }
+ if ($isLastInline) {
+ $nodeText = rtrim($nodeText);
+ }
+ $nodeText = str_replace("\n", $this->_unique . 'NL', $nodeText);
+ $tmpNode = $node;
+ $node = $node->nextSibling; // move loop to next node
+
+ // alter node in place, then move into AUTOP
+ $tmpNode->nodeValue = $nodeText;
+ $autop->appendChild($tmpNode);
+
+ continue;
+ }
+ }
+ if ($isBlock || ! $node->nextSibling) {
+ if ($isBlock) {
+ if (in_array($node->nodeName, $this->_descendList)) {
+ $elsToProcess[] = $node;
+ //$this->_addParagraphs($node);
+ }
+ }
+ $openP = true;
+ $ltrimFirstTextNode = true;
+ }
+ if ($alterInline) {
+ if (! $isBlock) {
+ $tmpNode = $node;
+ if ($isElement && false !== strpos($tmpNode->textContent, "\n")) {
+ $inlinesToProcess[] = $tmpNode;
+ }
+ $node = $node->nextSibling;
+ $autop->appendChild($tmpNode);
+ continue;
+ }
+ }
+
+ $node = $node->nextSibling;
+ }
+ }
+
+ // handle inline nodes
+ // no need to recurse, just queue up
+ while ($el = array_shift($inlinesToProcess)) {
+ $ignoreLeadingNewline = false;
+ foreach ($el->childNodes as $node) {
+ if ($node->nodeType === XML_ELEMENT_NODE) {
+ if ($node->nodeValue === 'BR') {
+ $ignoreLeadingNewline = true;
+ } else {
+ $ignoreLeadingNewline = false;
+ if (false !== strpos($node->textContent, "\n")) {
+ $inlinesToProcess[] = $node;
+ }
+ }
+ continue;
+ } elseif ($node->nodeType === XML_TEXT_NODE) {
+ $text = $node->nodeValue;
+ if ($text[0] === "\n" && $ignoreLeadingNewline) {
+ $text = substr($text, 1);
+ $ignoreLeadingNewline = false;
+ }
+ $node->nodeValue = str_replace("\n", $this->_unique . 'BR', $text);
+ }
+ }
+ }
+ }
+}
diff --git a/engine/classes/ElggDiskFilestore.php b/engine/classes/ElggDiskFilestore.php
index f00376481..7aace43ba 100644
--- a/engine/classes/ElggDiskFilestore.php
+++ b/engine/classes/ElggDiskFilestore.php
@@ -200,18 +200,18 @@ class ElggDiskFilestore extends ElggFilestore {
* @return string The full path of where the file is stored
*/
public function getFilenameOnFilestore(ElggFile $file) {
- $owner = $file->getOwnerEntity();
- if (!$owner) {
- $owner = elgg_get_logged_in_user_entity();
+ $owner_guid = $file->getOwnerGuid();
+ if (!$owner_guid) {
+ $owner_guid = elgg_get_logged_in_user_guid();
}
- if (!$owner) {
+ if (!$owner_guid) {
$msg = elgg_echo('InvalidParameterException:MissingOwner',
array($file->getFilename(), $file->guid));
throw new InvalidParameterException($msg);
}
- return $this->dir_root . $this->makefileMatrix($owner->guid) . $file->getFilename();
+ return $this->dir_root . $this->makefileMatrix($owner_guid) . $file->getFilename();
}
/**
diff --git a/engine/classes/ElggEntity.php b/engine/classes/ElggEntity.php
index 77c2bbf4d..929abceb2 100644
--- a/engine/classes/ElggEntity.php
+++ b/engine/classes/ElggEntity.php
@@ -248,7 +248,9 @@ abstract class ElggEntity extends ElggData implements
* @return mixed The value, or NULL if not found.
*/
public function getMetaData($name) {
- if ((int) ($this->guid) == 0) {
+ $guid = $this->getGUID();
+
+ if (! $guid) {
if (isset($this->temp_metadata[$name])) {
// md is returned as an array only if more than 1 entry
if (count($this->temp_metadata[$name]) == 1) {
@@ -261,21 +263,38 @@ abstract class ElggEntity extends ElggData implements
}
}
+ // upon first cache miss, just load/cache all the metadata and retry.
+ // if this works, the rest of this function may not be needed!
+ $cache = elgg_get_metadata_cache();
+ if ($cache->isKnown($guid, $name)) {
+ return $cache->load($guid, $name);
+ } else {
+ $cache->populateFromEntities(array($guid));
+ // in case ignore_access was on, we have to check again...
+ if ($cache->isKnown($guid, $name)) {
+ return $cache->load($guid, $name);
+ }
+ }
+
$md = elgg_get_metadata(array(
- 'guid' => $this->getGUID(),
+ 'guid' => $guid,
'metadata_name' => $name,
'limit' => 0,
));
+ $value = null;
+
if ($md && !is_array($md)) {
- return $md->value;
+ $value = $md->value;
} elseif (count($md) == 1) {
- return $md[0]->value;
+ $value = $md[0]->value;
} else if ($md && is_array($md)) {
- return metadata_array_to_values($md);
+ $value = metadata_array_to_values($md);
}
- return null;
+ $cache->save($guid, $name, $value);
+
+ return $value;
}
/**
@@ -1007,7 +1026,7 @@ abstract class ElggEntity extends ElggData implements
/**
* Returns the guid.
*
- * @return int GUID
+ * @return int|null GUID
*/
public function getGUID() {
return $this->get('guid');
@@ -1245,16 +1264,16 @@ abstract class ElggEntity extends ElggData implements
/**
* Save an entity.
*
- * @return bool/int
+ * @return bool|int
* @throws IOException
*/
public function save() {
- $guid = (int) $this->guid;
+ $guid = $this->getGUID();
if ($guid > 0) {
cache_entity($this);
return update_entity(
- $this->get('guid'),
+ $guid,
$this->get('owner_guid'),
$this->get('access_id'),
$this->get('container_guid'),
@@ -1301,10 +1320,7 @@ abstract class ElggEntity extends ElggData implements
$this->attributes['subtype'] = get_subtype_id($this->attributes['type'],
$this->attributes['subtype']);
- // Cache object handle
- if ($this->attributes['guid']) {
- cache_entity($this);
- }
+ cache_entity($this);
return $this->attributes['guid'];
}
diff --git a/engine/classes/ElggGroup.php b/engine/classes/ElggGroup.php
index 121186196..ea257f368 100644
--- a/engine/classes/ElggGroup.php
+++ b/engine/classes/ElggGroup.php
@@ -324,37 +324,18 @@ class ElggGroup extends ElggEntity
* @return bool
*/
protected function load($guid) {
- // Test to see if we have the generic stuff
- if (!parent::load($guid)) {
- return false;
- }
+ $attr_loader = new ElggAttributeLoader(get_class(), 'group', $this->attributes);
+ $attr_loader->requires_access_control = !($this instanceof ElggPlugin);
+ $attr_loader->secondary_loader = 'get_group_entity_as_row';
- // Only work with GUID from here
- if ($guid instanceof stdClass) {
- $guid = $guid->guid;
- }
-
- // Check the type
- if ($this->attributes['type'] != 'group') {
- $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($guid, get_class()));
- throw new InvalidClassException($msg);
- }
-
- // Load missing data
- $row = get_group_entity_as_row($guid);
- if (($row) && (!$this->isFullyLoaded())) {
- // If $row isn't a cached copy then increment the counter
- $this->attributes['tables_loaded']++;
- }
-
- // Now put these into the attributes array as core values
- $objarray = (array) $row;
- foreach ($objarray as $key => $value) {
- $this->attributes[$key] = $value;
+ $attrs = $attr_loader->getRequiredAttributes($guid);
+ if (!$attrs) {
+ return false;
}
- // guid needs to be an int http://trac.elgg.org/ticket/4111
- $this->attributes['guid'] = (int)$this->attributes['guid'];
+ $this->attributes = $attrs;
+ $this->attributes['tables_loaded'] = 2;
+ cache_entity($this);
return true;
}
diff --git a/engine/classes/ElggGroupItemVisibility.php b/engine/classes/ElggGroupItemVisibility.php
new file mode 100644
index 000000000..2c7e2abb4
--- /dev/null
+++ b/engine/classes/ElggGroupItemVisibility.php
@@ -0,0 +1,93 @@
+<?php
+
+/**
+ * Determines if otherwise visible items should be hidden from a user due to group
+ * policy or visibility.
+ *
+ * @class ElggGroupItemVisibility
+ * @package Elgg.Core
+ * @subpackage Groups
+ *
+ * @access private
+ */
+class ElggGroupItemVisibility {
+
+ const REASON_MEMBERSHIP = 'membershiprequired';
+ const REASON_LOGGEDOUT = 'loggedinrequired';
+ const REASON_NOACCESS = 'noaccess';
+
+ /**
+ * @var bool
+ */
+ public $shouldHideItems = false;
+
+ /**
+ * @var string
+ */
+ public $reasonHidden = '';
+
+ /**
+ * Determine visibility of items within a container for the current user
+ *
+ * @param int $container_guid GUID of a container (may/may not be a group)
+ *
+ * @return ElggGroupItemVisibility
+ *
+ * @todo Make this faster, considering it must run for every river item.
+ */
+ static public function factory($container_guid) {
+ // cache because this may be called repeatedly during river display, and
+ // due to need to check group visibility, cache will be disabled for some
+ // get_entity() calls
+ static $cache = array();
+
+ $ret = new ElggGroupItemVisibility();
+
+ if (!$container_guid) {
+ return $ret;
+ }
+
+ $user = elgg_get_logged_in_user_entity();
+ $user_guid = $user ? $user->guid : 0;
+
+ $container_guid = (int) $container_guid;
+
+ $cache_key = "$container_guid|$user_guid";
+ if (empty($cache[$cache_key])) {
+ // compute
+
+ $container = get_entity($container_guid);
+ $is_visible = (bool) $container;
+
+ if (!$is_visible) {
+ // see if it *really* exists...
+ $prev_access = elgg_set_ignore_access();
+ $container = get_entity($container_guid);
+ elgg_set_ignore_access($prev_access);
+ }
+
+ if ($container && $container instanceof ElggGroup) {
+ /* @var ElggGroup $container */
+
+ if ($is_visible) {
+ if (!$container->isPublicMembership()) {
+ if ($user) {
+ if (!$container->isMember($user) && !$user->isAdmin()) {
+ $ret->shouldHideItems = true;
+ $ret->reasonHidden = self::REASON_MEMBERSHIP;
+ }
+ } else {
+ $ret->shouldHideItems = true;
+ $ret->reasonHidden = self::REASON_LOGGEDOUT;
+ }
+ }
+ } else {
+ $ret->shouldHideItems = true;
+ $ret->reasonHidden = self::REASON_NOACCESS;
+ }
+ }
+ $cache[$cache_key] = $ret;
+ }
+ return $cache[$cache_key];
+ }
+}
diff --git a/engine/classes/ElggMenuBuilder.php b/engine/classes/ElggMenuBuilder.php
index de0017599..d7f85685c 100644
--- a/engine/classes/ElggMenuBuilder.php
+++ b/engine/classes/ElggMenuBuilder.php
@@ -204,6 +204,9 @@ class ElggMenuBuilder {
// sort each section
foreach ($this->menu as $index => $section) {
+ foreach ($section as $key => $node) {
+ $section[$key]->setData('original_order', $key);
+ }
usort($section, $sort_callback);
$this->menu[$index] = $section;
@@ -232,10 +235,14 @@ class ElggMenuBuilder {
* @return bool
*/
public static function compareByText($a, $b) {
- $a = $a->getText();
- $b = $b->getText();
+ $at = $a->getText();
+ $bt = $b->getText();
- return strnatcmp($a, $b);
+ $result = strnatcmp($at, $bt);
+ if ($result === 0) {
+ return $a->getData('original_order') - $b->getData('original_order');
+ }
+ return $result;
}
/**
@@ -246,10 +253,14 @@ class ElggMenuBuilder {
* @return bool
*/
public static function compareByName($a, $b) {
- $a = $a->getName();
- $b = $b->getName();
+ $an = $a->getName();
+ $bn = $b->getName();
- return strcmp($a, $b);
+ $result = strcmp($an, $bn);
+ if ($result === 0) {
+ return $a->getData('original_order') - $b->getData('original_order');
+ }
+ return $result;
}
/**
@@ -260,9 +271,12 @@ class ElggMenuBuilder {
* @return bool
*/
public static function compareByWeight($a, $b) {
- $a = $a->getWeight();
- $b = $b->getWeight();
+ $aw = $a->getWeight();
+ $bw = $b->getWeight();
- return $a > $b;
+ if ($aw == $bw) {
+ return $a->getData('original_order') - $b->getData('original_order');
+ }
+ return $aw - $bw;
}
}
diff --git a/engine/classes/ElggMenuItem.php b/engine/classes/ElggMenuItem.php
index 4bc9144d4..81ce6c099 100644
--- a/engine/classes/ElggMenuItem.php
+++ b/engine/classes/ElggMenuItem.php
@@ -542,6 +542,9 @@ class ElggMenuItem {
* @return void
*/
public function sortChildren($sortFunction) {
+ foreach ($this->data['children'] as $key => $node) {
+ $this->data['children'][$key]->data['original_order'] = $key;
+ }
usort($this->data['children'], $sortFunction);
}
diff --git a/engine/classes/ElggMetadata.php b/engine/classes/ElggMetadata.php
index 634a122e5..7f45dc3ea 100644
--- a/engine/classes/ElggMetadata.php
+++ b/engine/classes/ElggMetadata.php
@@ -26,8 +26,6 @@ class ElggMetadata extends ElggExtender {
* Construct a metadata object
*
* @param mixed $id ID of metadata or a database row as stdClass object
- *
- * @return void
*/
function __construct($id = null) {
$this->initializeAttributes();
@@ -54,7 +52,7 @@ class ElggMetadata extends ElggExtender {
*
* @param int $user_guid The GUID of the user (defaults to currently logged in user)
*
- * @return true|false Depending on permissions
+ * @return bool Depending on permissions
*/
function canEdit($user_guid = 0) {
if ($entity = get_entity($this->get('entity_guid'))) {
@@ -64,9 +62,11 @@ class ElggMetadata extends ElggExtender {
}
/**
- * Save matadata object
+ * Save metadata object
*
- * @return int the metadata object id
+ * @return int|bool the metadata object id or true if updated
+ *
+ * @throws IOException
*/
function save() {
if ($this->id > 0) {
@@ -89,7 +89,13 @@ class ElggMetadata extends ElggExtender {
* @return bool
*/
function delete() {
- return elgg_delete_metastring_based_object_by_id($this->id, 'metadata');
+ $success = elgg_delete_metastring_based_object_by_id($this->id, 'metadata');
+ if ($success) {
+ // we mark unknown here because this deletes only one value
+ // under this name, and there may be others remaining.
+ elgg_get_metadata_cache()->markUnknown($this->entity_guid, $this->name);
+ }
+ return $success;
}
/**
@@ -99,17 +105,27 @@ class ElggMetadata extends ElggExtender {
* @since 1.8
*/
function disable() {
- return elgg_set_metastring_based_object_enabled_by_id($this->id, 'no', 'metadata');
+ $success = elgg_set_metastring_based_object_enabled_by_id($this->id, 'no', 'metadata');
+ if ($success) {
+ // we mark unknown here because this disables only one value
+ // under this name, and there may be others remaining.
+ elgg_get_metadata_cache()->markUnknown($this->entity_guid, $this->name);
+ }
+ return $success;
}
/**
- * Disable the metadata
+ * Enable the metadata
*
* @return bool
* @since 1.8
*/
function enable() {
- return elgg_set_metastring_based_object_enabled_by_id($this->id, 'yes', 'metadata');
+ $success = elgg_set_metastring_based_object_enabled_by_id($this->id, 'yes', 'metadata');
+ if ($success) {
+ elgg_get_metadata_cache()->markUnknown($this->entity_guid, $this->name);
+ }
+ return $success;
}
/**
diff --git a/engine/classes/ElggObject.php b/engine/classes/ElggObject.php
index b4bae6825..6263f84f6 100644
--- a/engine/classes/ElggObject.php
+++ b/engine/classes/ElggObject.php
@@ -99,37 +99,18 @@ class ElggObject extends ElggEntity {
* @throws InvalidClassException
*/
protected function load($guid) {
- // Load data from entity table if needed
- if (!parent::load($guid)) {
- return false;
- }
+ $attr_loader = new ElggAttributeLoader(get_class(), 'object', $this->attributes);
+ $attr_loader->requires_access_control = !($this instanceof ElggPlugin);
+ $attr_loader->secondary_loader = 'get_object_entity_as_row';
- // Only work with GUID from here
- if ($guid instanceof stdClass) {
- $guid = $guid->guid;
- }
-
- // Check the type
- if ($this->attributes['type'] != 'object') {
- $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($guid, get_class()));
- throw new InvalidClassException($msg);
- }
-
- // Load missing data
- $row = get_object_entity_as_row($guid);
- if (($row) && (!$this->isFullyLoaded())) {
- // If $row isn't a cached copy then increment the counter
- $this->attributes['tables_loaded']++;
- }
-
- // Now put these into the attributes array as core values
- $objarray = (array) $row;
- foreach ($objarray as $key => $value) {
- $this->attributes[$key] = $value;
+ $attrs = $attr_loader->getRequiredAttributes($guid);
+ if (!$attrs) {
+ return false;
}
- // guid needs to be an int http://trac.elgg.org/ticket/4111
- $this->attributes['guid'] = (int)$this->attributes['guid'];
+ $this->attributes = $attrs;
+ $this->attributes['tables_loaded'] = 2;
+ cache_entity($this);
return true;
}
@@ -149,7 +130,7 @@ class ElggObject extends ElggEntity {
// Save ElggObject-specific attributes
return create_object_entity($this->get('guid'), $this->get('title'),
- $this->get('description'), $this->get('container_guid'));
+ $this->get('description'));
}
/**
@@ -223,7 +204,7 @@ class ElggObject extends ElggEntity {
// must be member of group
if (elgg_instanceof($this->getContainerEntity(), 'group')) {
- if (!$this->getContainerEntity()->canWriteToContainer(get_user($user_guid))) {
+ if (!$this->getContainerEntity()->canWriteToContainer($user_guid)) {
return false;
}
}
diff --git a/engine/classes/ElggPAM.php b/engine/classes/ElggPAM.php
index 0681a909b..f07095fc1 100644
--- a/engine/classes/ElggPAM.php
+++ b/engine/classes/ElggPAM.php
@@ -53,11 +53,17 @@ class ElggPAM {
foreach ($_PAM_HANDLERS[$this->policy] as $k => $v) {
$handler = $v->handler;
+ if (!is_callable($handler)) {
+ continue;
+ }
+ /* @var callable $handler */
+
$importance = $v->importance;
try {
// Execute the handler
- $result = $handler($credentials);
+ // @todo don't assume $handler is a global function
+ $result = call_user_func($handler, $credentials);
if ($result) {
$authenticated = true;
} elseif ($result === false) {
diff --git a/engine/classes/ElggPlugin.php b/engine/classes/ElggPlugin.php
index 8c9093834..8f71b79a8 100644
--- a/engine/classes/ElggPlugin.php
+++ b/engine/classes/ElggPlugin.php
@@ -36,8 +36,9 @@ class ElggPlugin extends ElggObject {
* @warning Unlike other ElggEntity objects, you cannot null instantiate
* ElggPlugin. You must point it to an actual plugin GUID or location.
*
- * @param mixed $plugin The GUID of the ElggPlugin object or the path of
- * the plugin to load.
+ * @param mixed $plugin The GUID of the ElggPlugin object or the path of the plugin to load.
+ *
+ * @throws PluginException
*/
public function __construct($plugin) {
if (!$plugin) {
@@ -76,68 +77,8 @@ class ElggPlugin extends ElggObject {
// load the rest of the plugin
parent::__construct($existing_guid);
}
- }
- /**
- * Overridden from ElggEntity and ElggObject::load(). Core always inits plugins with
- * a query joined to the objects_entity table, so all the info is there.
- *
- * @param mixed $guid GUID of an ElggObject or the stdClass object from entities table
- *
- * @return bool
- * @throws InvalidClassException
- */
- protected function load($guid) {
-
- $expected_attributes = $this->attributes;
- unset($expected_attributes['tables_split']);
- unset($expected_attributes['tables_loaded']);
-
- // this was loaded with a full join
- $needs_loaded = false;
-
- if ($guid instanceof stdClass) {
- $row = (array) $guid;
- $missing_attributes = array_diff_key($expected_attributes, $row);
- if ($missing_attributes) {
- $needs_loaded = true;
- $old_guid = $guid;
- $guid = $row['guid'];
- } else {
- $this->attributes = $row;
- }
- } else {
- $needs_loaded = true;
- }
-
- if ($needs_loaded) {
- $entity = (array) get_entity_as_row($guid);
- $object = (array) get_object_entity_as_row($guid);
-
- if (!$entity || !$object) {
- return false;
- }
-
- $this->attributes = array_merge($this->attributes, $entity, $object);
- }
-
- $this->attributes['tables_loaded'] = 2;
-
- // Check the type
- if ($this->attributes['type'] != 'object') {
- $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($guid, get_class()));
- throw new InvalidClassException($msg);
- }
-
- // guid needs to be an int http://trac.elgg.org/ticket/4111
- $this->attributes['guid'] = (int)$this->attributes['guid'];
-
- // cache the entity
- if ($this->attributes['guid']) {
- cache_entity($this);
- }
-
- return true;
+ _elgg_cache_plugin_by_id($this);
}
/**
@@ -362,10 +303,7 @@ class ElggPlugin extends ElggObject {
$return = array();
foreach ($private_settings as $setting) {
- $name = substr($setting->name, $ps_prefix_len);
- $value = $setting->value;
-
- $return[$name] = $value;
+ $return[$setting->name] = $setting->value;
}
return $return;
diff --git a/engine/classes/ElggPluginManifest.php b/engine/classes/ElggPluginManifest.php
index a4f5bb95d..6912c2b08 100644
--- a/engine/classes/ElggPluginManifest.php
+++ b/engine/classes/ElggPluginManifest.php
@@ -130,7 +130,7 @@ class ElggPluginManifest {
}
// see if we need to construct the xml object.
- if ($manifest instanceof XmlElement) {
+ if ($manifest instanceof ElggXMLElement) {
$manifest_obj = $manifest;
} else {
if (substr(trim($manifest), 0, 1) == '<') {
diff --git a/engine/classes/ElggPluginManifestParser.php b/engine/classes/ElggPluginManifestParser.php
index b0480d4d8..af152b561 100644
--- a/engine/classes/ElggPluginManifestParser.php
+++ b/engine/classes/ElggPluginManifestParser.php
@@ -53,10 +53,10 @@ abstract class ElggPluginManifestParser {
/**
* Loads the manifest XML to be parsed.
*
- * @param XmlElement $xml The Manifest XML object to be parsed
- * @param object $caller The object calling this parser.
+ * @param ElggXmlElement $xml The Manifest XML object to be parsed
+ * @param object $caller The object calling this parser.
*/
- public function __construct(XmlElement $xml, $caller) {
+ public function __construct(ElggXMLElement $xml, $caller) {
$this->manifestObject = $xml;
$this->caller = $caller;
}
diff --git a/engine/classes/ElggSession.php b/engine/classes/ElggSession.php
index 13a33736c..9750f063e 100644
--- a/engine/classes/ElggSession.php
+++ b/engine/classes/ElggSession.php
@@ -54,7 +54,7 @@ class ElggSession implements ArrayAccess {
*
* @param mixed $key Name
*
- * @return void
+ * @return mixed
*/
function offsetGet($key) {
if (!ElggSession::$__localcache) {
@@ -98,7 +98,7 @@ class ElggSession implements ArrayAccess {
*
* @param int $offset Offset
*
- * @return int
+ * @return bool
*/
function offsetExists($offset) {
if (isset(ElggSession::$__localcache[$offset])) {
@@ -112,6 +112,8 @@ class ElggSession implements ArrayAccess {
if ($this->offsetGet($offset)) {
return true;
}
+
+ return false;
}
@@ -132,10 +134,10 @@ class ElggSession implements ArrayAccess {
* @param string $key Name
* @param mixed $value Value
*
- * @return mixed
+ * @return void
*/
function set($key, $value) {
- return $this->offsetSet($key, $value);
+ $this->offsetSet($key, $value);
}
/**
@@ -143,9 +145,9 @@ class ElggSession implements ArrayAccess {
*
* @param string $key Name
*
- * @return bool
+ * @return void
*/
function del($key) {
- return $this->offsetUnset($key);
+ $this->offsetUnset($key);
}
}
diff --git a/engine/classes/ElggSite.php b/engine/classes/ElggSite.php
index 401939005..1a34df195 100644
--- a/engine/classes/ElggSite.php
+++ b/engine/classes/ElggSite.php
@@ -117,37 +117,18 @@ class ElggSite extends ElggEntity {
* @throws InvalidClassException
*/
protected function load($guid) {
- // Test to see if we have the generic stuff
- if (!parent::load($guid)) {
- return false;
- }
-
- // Only work with GUID from here
- if ($guid instanceof stdClass) {
- $guid = $guid->guid;
- }
-
- // Check the type
- if ($this->attributes['type'] != 'site') {
- $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($guid, get_class()));
- throw new InvalidClassException($msg);
- }
+ $attr_loader = new ElggAttributeLoader(get_class(), 'site', $this->attributes);
+ $attr_loader->requires_access_control = !($this instanceof ElggPlugin);
+ $attr_loader->secondary_loader = 'get_site_entity_as_row';
- // Load missing data
- $row = get_site_entity_as_row($guid);
- if (($row) && (!$this->isFullyLoaded())) {
- // If $row isn't a cached copy then increment the counter
- $this->attributes['tables_loaded']++;
- }
-
- // Now put these into the attributes array as core values
- $objarray = (array) $row;
- foreach ($objarray as $key => $value) {
- $this->attributes[$key] = $value;
+ $attrs = $attr_loader->getRequiredAttributes($guid);
+ if (!$attrs) {
+ return false;
}
- // guid needs to be an int http://trac.elgg.org/ticket/4111
- $this->attributes['guid'] = (int)$this->attributes['guid'];
+ $this->attributes = $attrs;
+ $this->attributes['tables_loaded'] = 2;
+ cache_entity($this);
return true;
}
@@ -381,6 +362,11 @@ class ElggSite extends ElggEntity {
public function checkWalledGarden() {
global $CONFIG;
+ // command line calls should not invoke the walled garden check
+ if (PHP_SAPI === 'cli') {
+ return;
+ }
+
if ($CONFIG->walled_garden) {
if ($CONFIG->default_access == ACCESS_PUBLIC) {
$CONFIG->default_access = ACCESS_LOGGED_IN;
@@ -395,7 +381,9 @@ class ElggSite extends ElggEntity {
elgg_register_plugin_hook_handler('index', 'system', 'elgg_walled_garden_index', 1);
if (!$this->isPublicPage()) {
- $_SESSION['last_forward_from'] = current_page_url();
+ if (!elgg_is_xhr()) {
+ $_SESSION['last_forward_from'] = current_page_url();
+ }
register_error(elgg_echo('loggedinrequired'));
forward();
}
@@ -457,8 +445,6 @@ class ElggSite extends ElggEntity {
// include a hook for plugin authors to include public pages
$plugins = elgg_trigger_plugin_hook('public_pages', 'walled_garden', NULL, array());
- // lookup admin-specific public pages
-
// allow public pages
foreach (array_merge($defaults, $plugins) as $public) {
$pattern = "`^{$CONFIG->url}$public/*$`i";
diff --git a/engine/classes/ElggStaticVariableCache.php b/engine/classes/ElggStaticVariableCache.php
index 787d35a32..17d849400 100644
--- a/engine/classes/ElggStaticVariableCache.php
+++ b/engine/classes/ElggStaticVariableCache.php
@@ -21,8 +21,8 @@ class ElggStaticVariableCache extends ElggSharedMemoryCache {
* This function creates a variable cache in a static variable in
* memory, optionally with a given namespace (to avoid overlap).
*
- * @param string $namespace The namespace for this cache to write to
- * note, namespaces of the same name are shared!
+ * @param string $namespace The namespace for this cache to write to.
+ * @note namespaces of the same name are shared!
*/
function __construct($namespace = 'default') {
$this->setNamespace($namespace);
diff --git a/engine/classes/ElggUser.php b/engine/classes/ElggUser.php
index d7bb89265..6c1cdc1de 100644
--- a/engine/classes/ElggUser.php
+++ b/engine/classes/ElggUser.php
@@ -106,37 +106,17 @@ class ElggUser extends ElggEntity
* @return bool
*/
protected function load($guid) {
- // Test to see if we have the generic stuff
- if (!parent::load($guid)) {
- return false;
- }
+ $attr_loader = new ElggAttributeLoader(get_class(), 'user', $this->attributes);
+ $attr_loader->secondary_loader = 'get_user_entity_as_row';
- // Only work with GUID from here
- if ($guid instanceof stdClass) {
- $guid = $guid->guid;
- }
-
- // Check the type
- if ($this->attributes['type'] != 'user') {
- $msg = elgg_echo('InvalidClassException:NotValidElggStar', array($guid, get_class()));
- throw new InvalidClassException($msg);
- }
-
- // Load missing data
- $row = get_user_entity_as_row($guid);
- if (($row) && (!$this->isFullyLoaded())) {
- // If $row isn't a cached copy then increment the counter
- $this->attributes['tables_loaded']++;
- }
-
- // Now put these into the attributes array as core values
- $objarray = (array) $row;
- foreach ($objarray as $key => $value) {
- $this->attributes[$key] = $value;
+ $attrs = $attr_loader->getRequiredAttributes($guid);
+ if (!$attrs) {
+ return false;
}
- // guid needs to be an int http://trac.elgg.org/ticket/4111
- $this->attributes['guid'] = (int)$this->attributes['guid'];
+ $this->attributes = $attrs;
+ $this->attributes['tables_loaded'] = 2;
+ cache_entity($this);
return true;
}
diff --git a/engine/classes/ElggVolatileMetadataCache.php b/engine/classes/ElggVolatileMetadataCache.php
new file mode 100644
index 000000000..8a33c198d
--- /dev/null
+++ b/engine/classes/ElggVolatileMetadataCache.php
@@ -0,0 +1,347 @@
+<?php
+/**
+ * ElggVolatileMetadataCache
+ * In memory cache of known metadata values stored by entity.
+ *
+ * @package Elgg.Core
+ * @subpackage Cache
+ *
+ * @access private
+ */
+class ElggVolatileMetadataCache {
+
+ /**
+ * The cached values (or null for known to be empty). If the portion of the cache
+ * is synchronized, missing values are assumed to indicate that values do not
+ * exist in storage, otherwise, we don't know what's there.
+ *
+ * @var array
+ */
+ protected $values = array();
+
+ /**
+ * Does the cache know that it contains all names fetch-able from storage?
+ * The keys are entity GUIDs and either the value exists (true) or it's not set.
+ *
+ * @var array
+ */
+ protected $isSynchronized = array();
+
+ /**
+ * @var null|bool
+ */
+ protected $ignoreAccess = null;
+
+ /**
+ * @param int $entity_guid
+ *
+ * @param array $values
+ */
+ public function saveAll($entity_guid, array $values) {
+ if (!$this->getIgnoreAccess()) {
+ $this->values[$entity_guid] = $values;
+ $this->isSynchronized[$entity_guid] = true;
+ }
+ }
+
+ /**
+ * @param int $entity_guid
+ *
+ * @return array
+ */
+ public function loadAll($entity_guid) {
+ if (isset($this->values[$entity_guid])) {
+ return $this->values[$entity_guid];
+ } else {
+ return array();
+ }
+ }
+
+ /**
+ * Declare that there may be fetch-able metadata names in storage that this
+ * cache doesn't know about
+ *
+ * @param int $entity_guid
+ */
+ public function markOutOfSync($entity_guid) {
+ unset($this->isSynchronized[$entity_guid]);
+ }
+
+ /**
+ * @param $entity_guid
+ *
+ * @return bool
+ */
+ public function isSynchronized($entity_guid) {
+ return isset($this->isSynchronized[$entity_guid]);
+ }
+
+ /**
+ * @param int $entity_guid
+ *
+ * @param string $name
+ *
+ * @param array|int|string|null $value null means it is known that there is no
+ * fetch-able metadata under this name
+ * @param bool $allow_multiple
+ */
+ public function save($entity_guid, $name, $value, $allow_multiple = false) {
+ if ($this->getIgnoreAccess()) {
+ // we don't know if what gets saves here will be available to user once
+ // access control returns, hence it's best to forget :/
+ $this->markUnknown($entity_guid, $name);
+ } else {
+ if ($allow_multiple) {
+ if ($this->isKnown($entity_guid, $name)) {
+ $existing = $this->load($entity_guid, $name);
+ if ($existing !== null) {
+ $existing = (array) $existing;
+ $existing[] = $value;
+ $value = $existing;
+ }
+ } else {
+ // we don't know whether there are unknown values, so it's
+ // safest to leave that assumption
+ $this->markUnknown($entity_guid, $name);
+ return;
+ }
+ }
+ $this->values[$entity_guid][$name] = $value;
+ }
+ }
+
+ /**
+ * Warning: You should always call isKnown() beforehand to verify that this
+ * function's return value should be trusted (otherwise a null return value
+ * is ambiguous).
+ *
+ * @param int $entity_guid
+ *
+ * @param string $name
+ *
+ * @return array|string|int|null null = value does not exist
+ */
+ public function load($entity_guid, $name) {
+ if (isset($this->values[$entity_guid]) && array_key_exists($name, $this->values[$entity_guid])) {
+ return $this->values[$entity_guid][$name];
+ } else {
+ return null;
+ }
+ }
+
+ /**
+ * Forget about this metadata entry. We don't want to try to guess what the
+ * next fetch from storage will return
+ *
+ * @param int $entity_guid
+ *
+ * @param string $name
+ */
+ public function markUnknown($entity_guid, $name) {
+ unset($this->values[$entity_guid][$name]);
+ $this->markOutOfSync($entity_guid);
+ }
+
+ /**
+ * If true, load() will return an accurate value for this name
+ *
+ * @param int $entity_guid
+ *
+ * @param string $name
+ *
+ * @return bool
+ */
+ public function isKnown($entity_guid, $name) {
+ if (isset($this->isSynchronized[$entity_guid])) {
+ return true;
+ } else {
+ return (isset($this->values[$entity_guid]) && array_key_exists($name, $this->values[$entity_guid]));
+ }
+
+ }
+
+ /**
+ * Declare that metadata under this name is known to be not fetch-able from storage
+ *
+ * @param int $entity_guid
+ *
+ * @param string $name
+ *
+ * @return array
+ */
+ public function markEmpty($entity_guid, $name) {
+ $this->values[$entity_guid][$name] = null;
+ }
+
+ /**
+ * Forget about all metadata for an entity
+ *
+ * @param int $entity_guid
+ */
+ public function clear($entity_guid) {
+ $this->values[$entity_guid] = array();
+ $this->markOutOfSync($entity_guid);
+ }
+
+ /**
+ * Clear entire cache and mark all entities as out of sync
+ */
+ public function flush() {
+ $this->values = array();
+ $this->isSynchronized = array();
+ }
+
+ /**
+ * Use this value instead of calling elgg_get_ignore_access(). By default that
+ * function will be called.
+ *
+ * This setting makes this component a little more loosely-coupled.
+ *
+ * @param bool $ignore
+ */
+ public function setIgnoreAccess($ignore) {
+ $this->ignoreAccess = (bool) $ignore;
+ }
+
+ /**
+ * Tell the cache to call elgg_get_ignore_access() to determing access status.
+ */
+ public function unsetIgnoreAccess() {
+ $this->ignoreAccess = null;
+ }
+
+ /**
+ * @return bool
+ */
+ protected function getIgnoreAccess() {
+ if (null === $this->ignoreAccess) {
+ return elgg_get_ignore_access();
+ } else {
+ return $this->ignoreAccess;
+ }
+ }
+
+ /**
+ * Invalidate based on options passed to the global *_metadata functions
+ *
+ * @param string $action Action performed on metadata. "delete", "disable", or "enable"
+ *
+ * @param array $options Options passed to elgg_(delete|disable|enable)_metadata
+ *
+ * "guid" if given, invalidation will be limited to this entity
+ *
+ * "metadata_name" if given, invalidation will be limited to metadata with this name
+ */
+ public function invalidateByOptions($action, array $options) {
+ // remove as little as possible, optimizing for common cases
+ if (empty($options['guid'])) {
+ // safest to clear everything unless we want to make this even more complex :(
+ $this->flush();
+ } else {
+ if (empty($options['metadata_name'])) {
+ // safest to clear the whole entity
+ $this->clear($options['guid']);
+ } else {
+ switch ($action) {
+ case 'delete':
+ $this->markEmpty($options['guid'], $options['metadata_name']);
+ break;
+ default:
+ $this->markUnknown($options['guid'], $options['metadata_name']);
+ }
+ }
+ }
+ }
+
+ /**
+ * @param int|array $guids
+ */
+ public function populateFromEntities($guids) {
+ if (empty($guids)) {
+ return;
+ }
+ if (!is_array($guids)) {
+ $guids = array($guids);
+ }
+ $guids = array_unique($guids);
+
+ // could be useful at some point in future
+ //$guids = $this->filterMetadataHeavyEntities($guids);
+
+ $db_prefix = elgg_get_config('dbprefix');
+ $options = array(
+ 'guids' => $guids,
+ 'limit' => 0,
+ 'callback' => false,
+ 'joins' => array(
+ "JOIN {$db_prefix}metastrings v ON n_table.value_id = v.id",
+ "JOIN {$db_prefix}metastrings n ON n_table.name_id = n.id",
+ ),
+ 'selects' => array('n.string AS name', 'v.string AS value'),
+ 'order_by' => 'n_table.entity_guid, n_table.time_created ASC',
+
+ // @todo don't know why this is necessary
+ 'wheres' => array(get_access_sql_suffix('n_table')),
+ );
+ $data = elgg_get_metadata($options);
+
+ // build up metadata for each entity, save when GUID changes (or data ends)
+ $last_guid = null;
+ $metadata = array();
+ $last_row_idx = count($data) - 1;
+ foreach ($data as $i => $row) {
+ $name = $row->name;
+ $value = ($row->value_type === 'text') ? $row->value : (int) $row->value;
+ $guid = $row->entity_guid;
+ if ($guid !== $last_guid) {
+ if ($last_guid) {
+ $this->saveAll($last_guid, $metadata);
+ }
+ $metadata = array();
+ }
+ if (isset($metadata[$name])) {
+ $metadata[$name] = (array) $metadata[$name];
+ $metadata[$name][] = $value;
+ } else {
+ $metadata[$name] = $value;
+ }
+ if (($i == $last_row_idx)) {
+ $this->saveAll($guid, $metadata);
+ }
+ $last_guid = $guid;
+ }
+ }
+
+ /**
+ * Filter out entities whose concatenated metadata values (INTs casted as string)
+ * exceed a threshold in characters. This could be used to avoid overpopulating the
+ * cache if RAM usage becomes an issue.
+ *
+ * @param array $guids GUIDs of entities to examine
+ *
+ * @param int $limit Limit in characters of all metadata (with ints casted to strings)
+ *
+ * @return array
+ */
+ public function filterMetadataHeavyEntities(array $guids, $limit = 1024000) {
+ $db_prefix = elgg_get_config('dbprefix');
+
+ $options = array(
+ 'guids' => $guids,
+ 'limit' => 0,
+ 'callback' => false,
+ 'joins' => "JOIN {$db_prefix}metastrings v ON n_table.value_id = v.id",
+ 'selects' => array('SUM(LENGTH(v.string)) AS bytes'),
+ 'order_by' => 'n_table.entity_guid, n_table.time_created ASC',
+ 'group_by' => 'n_table.entity_guid',
+ );
+ $data = elgg_get_metadata($options);
+ // don't cache if metadata for entity is over 10MB (or rolled INT)
+ foreach ($data as $row) {
+ if ($row->bytes > $limit || $row->bytes < 0) {
+ array_splice($guids, array_search($row->entity_guid, $guids), 1);
+ }
+ }
+ return $guids;
+ }
+}
diff --git a/engine/classes/ElggXMLElement.php b/engine/classes/ElggXMLElement.php
new file mode 100644
index 000000000..65a13912c
--- /dev/null
+++ b/engine/classes/ElggXMLElement.php
@@ -0,0 +1,115 @@
+<?php
+/**
+ * A parser for XML that uses SimpleXMLElement
+ *
+ * @package Elgg.Core
+ * @subpackage XML
+ */
+class ElggXMLElement {
+ /**
+ * @var SimpleXMLElement
+ */
+ private $_element;
+
+ /**
+ * Creates an ElggXMLParser from a string or existing SimpleXMLElement
+ *
+ * @param string|SimpleXMLElement $xml The XML to parse
+ */
+ public function __construct($xml) {
+ if ($xml instanceof SimpleXMLElement) {
+ $this->_element = $xml;
+ } else {
+ $this->_element = new SimpleXMLElement($xml);
+ }
+ }
+
+ /**
+ * @return string The name of the element
+ */
+ public function getName() {
+ return $this->_element->getName();
+ }
+
+ /**
+ * @return array:string The attributes
+ */
+ public function getAttributes() {
+ //include namespace declarations as attributes
+ $xmlnsRaw = $this->_element->getNamespaces();
+ $xmlns = array();
+ foreach ($xmlnsRaw as $key => $val) {
+ $label = 'xmlns' . ($key ? ":$key" : $key);
+ $xmlns[$label] = $val;
+ }
+ //get attributes and merge with namespaces
+ $attrRaw = $this->_element->attributes();
+ $attr = array();
+ foreach ($attrRaw as $key => $val) {
+ $attr[$key] = $val;
+ }
+ $attr = array_merge((array) $xmlns, (array) $attr);
+ $result = array();
+ foreach ($attr as $key => $val) {
+ $result[$key] = (string) $val;
+ }
+ return $result;
+ }
+
+ /**
+ * @return string CData
+ */
+ public function getContent() {
+ return (string) $this->_element;
+ }
+
+ /**
+ * @return array:ElggXMLElement Child elements
+ */
+ public function getChildren() {
+ $children = $this->_element->children();
+ $result = array();
+ foreach ($children as $val) {
+ $result[] = new ElggXMLElement($val);
+ }
+
+ return $result;
+ }
+
+ function __get($name) {
+ switch ($name) {
+ case 'name':
+ return $this->getName();
+ break;
+ case 'attributes':
+ return $this->getAttributes();
+ break;
+ case 'content':
+ return $this->getContent();
+ break;
+ case 'children':
+ return $this->getChildren();
+ break;
+ }
+ return null;
+ }
+
+ function __isset($name) {
+ switch ($name) {
+ case 'name':
+ return $this->getName() !== null;
+ break;
+ case 'attributes':
+ return $this->getAttributes() !== null;
+ break;
+ case 'content':
+ return $this->getContent() !== null;
+ break;
+ case 'children':
+ return $this->getChildren() !== null;
+ break;
+ }
+ return false;
+ }
+
+} \ No newline at end of file
diff --git a/engine/classes/IncompleteEntityException.php b/engine/classes/IncompleteEntityException.php
new file mode 100644
index 000000000..8c86edcc6
--- /dev/null
+++ b/engine/classes/IncompleteEntityException.php
@@ -0,0 +1,10 @@
+<?php
+/**
+ * IncompleteEntityException
+ * Thrown when constructing an entity that is missing its secondary entity table
+ *
+ * @package Elgg.Core
+ * @subpackage Exception
+ * @access private
+ */
+class IncompleteEntityException extends Exception {}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-05 03:16:43 +0000