Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 
 

3166 lines
102 KiB

<?php
/**
* @file src/Model/Item.php
*/
namespace Friendica\Model;
use Friendica\BaseObject;
use Friendica\Content\Text\BBCode;
use Friendica\Core\Addon;
use Friendica\Core\Config;
use Friendica\Core\Lock;
use Friendica\Core\PConfig;
use Friendica\Core\System;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\Model\Contact;
use Friendica\Model\PermissionSet;
use Friendica\Object\Image;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\XML;
use Text_LanguageDetect;
require_once 'boot.php';
require_once 'include/items.php';
require_once 'include/text.php';
class Item extends BaseObject
{
// Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
const PT_ARTICLE = 0;
const PT_NOTE = 1;
const PT_PAGE = 2;
const PT_IMAGE = 16;
const PT_AUDIO = 17;
const PT_VIDEO = 18;
const PT_DOCUMENT = 19;
const PT_EVENT = 32;
const PT_PERSONAL_NOTE = 128;
// Field list that is used to display the items
const DISPLAY_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach', 'language',
'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network',
'contact-id', 'contact-link', 'contact-name', 'contact-avatar',
'writable', 'self', 'cid', 'alias',
'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
'event-summary', 'event-desc', 'event-location', 'event-type',
'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
// Field list that is used to deliver items via the protocols
const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid',
'created', 'edited', 'verb', 'object-type', 'object', 'target',
'private', 'title', 'body', 'location', 'coord', 'app',
'attach', 'tag', 'deleted', 'extid', 'post-type',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'author-id', 'author-link', 'owner-link', 'contact-uid',
'signed_text', 'signature', 'signer', 'network'];
// Field list for "item-content" table that is mixed with the item table
const MIXED_CONTENT_FIELDLIST = ['title', 'content-warning', 'body', 'location',
'coord', 'app', 'rendered-hash', 'rendered-html', 'verb',
'object-type', 'object', 'target-type', 'target', 'plink'];
// Field list for "item-content" table that is not present in the "item" table
const CONTENT_FIELDLIST = ['language'];
// Field list for additional delivery data
const DELIVERY_DATA_FIELDLIST = ['postopts', 'inform'];
// All fields in the item table
const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
'contact-id', 'type', 'wall', 'gravity', 'extid', 'icid', 'iaid', 'psid',
'created', 'edited', 'commented', 'received', 'changed', 'verb',
'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
'file', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type',
'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
'title', 'content-warning', 'body', 'location', 'coord', 'app',
'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
'author-id', 'author-link', 'author-name', 'author-avatar',
'owner-id', 'owner-link', 'owner-name', 'owner-avatar'];
// Never reorder or remove entries from this list. Just add new ones at the end, if needed.
// The item-activity table only stores the index and needs this array to know the matching activity.
const ACTIVITIES = [ACTIVITY_LIKE, ACTIVITY_DISLIKE, ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE];
private static $legacy_mode = null;
public static function isLegacyMode()
{
if (is_null(self::$legacy_mode)) {
self::$legacy_mode = (Config::get("system", "post_update_version") < 1279);
}
return self::$legacy_mode;
}
/**
* @brief returns an activity index from an activity string
*
* @param string $activity activity string
* @return integer Activity index
*/
private static function activityToIndex($activity)
{
$index = array_search($activity, self::ACTIVITIES);
if (is_bool($index)) {
$index = -1;
}
return $index;
}
/**
* @brief returns an activity string from an activity index
*
* @param integer $index activity index
* @return string Activity string
*/
private static function indexToActivity($index)
{
if (is_null($index) || !array_key_exists($index, self::ACTIVITIES)) {
return '';
}
return self::ACTIVITIES[$index];
}
/**
* @brief Fetch a single item row
*
* @param mixed $stmt statement object
* @return array current row
*/
public static function fetch($stmt)
{
$row = DBA::fetch($stmt);
if (is_bool($row)) {
return $row;
}
// ---------------------- Transform item structure data ----------------------
// We prefer the data from the user's contact over the public one
if (!empty($row['author-link']) && !empty($row['contact-link']) &&
($row['author-link'] == $row['contact-link'])) {
if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
$row['author-avatar'] = $row['contact-avatar'];
}
if (isset($row['author-name']) && !empty($row['contact-name'])) {
$row['author-name'] = $row['contact-name'];
}
}
if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
($row['owner-link'] == $row['contact-link'])) {
if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
$row['owner-avatar'] = $row['contact-avatar'];
}
if (isset($row['owner-name']) && !empty($row['contact-name'])) {
$row['owner-name'] = $row['contact-name'];
}
}
// We can always comment on posts from these networks
if (array_key_exists('writable', $row) &&
in_array($row['internal-network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
$row['writable'] = true;
}
// ---------------------- Transform item content data ----------------------
// Fetch data from the item-content table whenever there is content there
if (self::isLegacyMode()) {
$legacy_fields = array_merge(self::DELIVERY_DATA_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
foreach ($legacy_fields as $field) {
if (empty($row[$field]) && !empty($row['internal-item-' . $field])) {
$row[$field] = $row['internal-item-' . $field];
}
unset($row['internal-item-' . $field]);
}
}
if (!empty($row['internal-iaid']) && array_key_exists('verb', $row)) {
$row['verb'] = self::indexToActivity($row['internal-activity']);
if (array_key_exists('title', $row)) {
$row['title'] = '';
}
if (array_key_exists('body', $row)) {
$row['body'] = $row['verb'];
}
if (array_key_exists('object', $row)) {
$row['object'] = '';
}
if (array_key_exists('object-type', $row)) {
$row['object-type'] = ACTIVITY_OBJ_NOTE;
}
} elseif (array_key_exists('verb', $row) && in_array($row['verb'], ['', ACTIVITY_POST, ACTIVITY_SHARE])) {
// Posts don't have an object or target - but having tags or files.
// We safe some performance by building tag and file strings only here.
// We remove object and target since they aren't used for this type.
if (array_key_exists('object', $row)) {
$row['object'] = '';
}
if (array_key_exists('target', $row)) {
$row['target'] = '';
}
}
if (!array_key_exists('verb', $row) || in_array($row['verb'], ['', ACTIVITY_POST, ACTIVITY_SHARE])) {
// Build the tag string out of the term entries
if (array_key_exists('tag', $row) && empty($row['tag'])) {
$row['tag'] = Term::tagTextFromItemId($row['internal-iid']);
}
// Build the file string out of the term entries
if (array_key_exists('file', $row) && empty($row['file'])) {
$row['file'] = Term::fileTextFromItemId($row['internal-iid']);
}
}
// Remove internal fields
unset($row['internal-activity']);
unset($row['internal-network']);
unset($row['internal-iid']);
unset($row['internal-iaid']);
unset($row['internal-icid']);
return $row;
}
/**
* @brief Fills an array with data from an item query
*
* @param object $stmt statement object
* @return array Data array
*/
public static function inArray($stmt, $do_close = true) {
if (is_bool($stmt)) {
return $stmt;
}
$data = [];
while ($row = self::fetch($stmt)) {
$data[] = $row;
}
if ($do_close) {
DBA::close($stmt);
}
return $data;
}
/**
* @brief Check if item data exists
*
* @param array $condition array of fields for condition
*
* @return boolean Are there rows for that condition?
*/
public static function exists($condition) {
$stmt = self::select(['id'], $condition, ['limit' => 1]);
if (is_bool($stmt)) {
$retval = $stmt;
} else {
$retval = (DBA::numRows($stmt) > 0);
}
DBA::close($stmt);
return $retval;
}
/**
* Retrieve a single record from the item table for a given user and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param integer $uid User ID
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see DBA::select
*/
public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectFirst($selected, $condition, $params);
}
/**
* @brief Select rows from the item table for a given user
*
* @param integer $uid User ID
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::select($selected, $condition, $params);
}
/**
* Retrieve a single record from the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see DBA::select
*/
public static function selectFirst(array $fields = [], array $condition = [], $params = [])
{
$params['limit'] = 1;
$result = self::select($fields, $condition, $params);
if (is_bool($result)) {
return $result;
} else {
$row = self::fetch($result);
DBA::close($result);
return $row;
}
}
/**
* @brief Select rows from the item table
*
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function select(array $selected = [], array $condition = [], $params = [])
{
$uid = 0;
$usermode = false;
if (isset($params['uid'])) {
$uid = $params['uid'];
$usermode = true;
}
$fields = self::fieldlist($selected);
$select_fields = self::constructSelectFields($fields, $selected);
$condition_string = DBA::buildCondition($condition);
$condition_string = self::addTablesToFields($condition_string, $fields);
if ($usermode) {
$condition_string = $condition_string . ' AND ' . self::condition(false);
}
$param_string = self::addTablesToFields(DBA::buildParameter($params), $fields);
$table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false, $usermode);
$sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
return DBA::p($sql, $condition);
}
/**
* @brief Select rows from the starting post in the item table
*
* @param integer $uid User ID
* @param array $fields Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectThread($selected, $condition, $params);
}
/**
* Retrieve a single record from the starting post in the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param integer $uid User ID
* @param array $selected
* @param array $condition
* @param array $params
* @return bool|array
* @see DBA::select
*/
public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectFirstThread($selected, $condition, $params);
}
/**
* Retrieve a single record from the starting post in the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see DBA::select
*/
public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
{
$params['limit'] = 1;
$result = self::selectThread($fields, $condition, $params);
if (is_bool($result)) {
return $result;
} else {
$row = self::fetch($result);
DBA::close($result);
return $row;
}
}
/**
* @brief Select rows from the starting post in the item table
*
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectThread(array $selected = [], array $condition = [], $params = [])
{
$uid = 0;
$usermode = false;
if (isset($params['uid'])) {
$uid = $params['uid'];
$usermode = true;
}
$fields = self::fieldlist($selected);
$threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'post-type',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
$select_fields = self::constructSelectFields($fields, $selected);
$condition_string = DBA::buildCondition($condition);
$condition_string = self::addTablesToFields($condition_string, $threadfields);
$condition_string = self::addTablesToFields($condition_string, $fields);
if ($usermode) {
$condition_string = $condition_string . ' AND ' . self::condition(true);
}
$param_string = DBA::buildParameter($params);
$param_string = self::addTablesToFields($param_string, $threadfields);
$param_string = self::addTablesToFields($param_string, $fields);
$table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true, $usermode);
$sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
return DBA::p($sql, $condition);
}
/**
* @brief Returns a list of fields that are associated with the item table
*
* @return array field list
*/
private static function fieldlist($selected)
{
$fields = [];
$fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
'created', 'edited', 'commented', 'received', 'changed', 'psid',
'resource-id', 'event-id', 'tag', 'attach', 'post-type', 'file',
'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global',
'id' => 'item_id', 'network', 'icid', 'iaid', 'id' => 'internal-iid',
'network' => 'internal-network', 'icid' => 'internal-icid',
'iaid' => 'internal-iaid'];
$fields['item-activity'] = ['activity', 'activity' => 'internal-activity'];
$fields['item-content'] = array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
$fields['item-delivery-data'] = self::DELIVERY_DATA_FIELDLIST;
$fields['permissionset'] = ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
$fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
'thumb' => 'author-avatar', 'nick' => 'author-nick', 'network' => 'author-network'];
$fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
'thumb' => 'owner-avatar', 'nick' => 'owner-nick', 'network' => 'owner-network'];
$fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
$fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
$fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
$fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
'start' => 'event-start','finish' => 'event-finish',
'summary' => 'event-summary','desc' => 'event-desc',
'location' => 'event-location', 'type' => 'event-type',
'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
'ignore' => 'event-ignore', 'id' => 'event-id'];
$fields['sign'] = ['signed_text', 'signature', 'signer'];
return $fields;
}
/**
* @brief Returns SQL condition for the "select" functions
*
* @param boolean $thread_mode Called for the items (false) or for the threads (true)
*
* @return string SQL condition
*/
private static function condition($thread_mode)
{
if ($thread_mode) {
$master_table = "`thread`";
} else {
$master_table = "`item`";
}
return "$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated` AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`) ";
}
/**
* @brief Returns all needed "JOIN" commands for the "select" functions
*
* @param integer $uid User ID
* @param string $sql_commands The parts of the built SQL commands in the "select" functions
* @param boolean $thread_mode Called for the items (false) or for the threads (true)
*
* @return string The SQL joins for the "select" functions
*/
private static function constructJoins($uid, $sql_commands, $thread_mode, $user_mode)
{
if ($thread_mode) {
$master_table = "`thread`";
$master_table_key = "`thread`.`iid`";
$joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
} else {
$master_table = "`item`";
$master_table_key = "`item`.`id`";
$joins = '';
}
if ($user_mode) {
$joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
AND NOT `contact`.`blocked`
AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
OR `contact`.`self` OR `item`.`gravity` != %d OR `contact`.`uid` = 0)
STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d",
Contact::SHARING, Contact::FRIEND, GRAVITY_PARENT, intval($uid));
} else {
if (strpos($sql_commands, "`contact`.") !== false) {
$joins .= "LEFT JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`";
}
if (strpos($sql_commands, "`author`.") !== false) {
$joins .= " LEFT JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id`";
}
if (strpos($sql_commands, "`owner`.") !== false) {
$joins .= " LEFT JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id`";
}
}
if (strpos($sql_commands, "`group_member`.") !== false) {
$joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
}
if (strpos($sql_commands, "`user`.") !== false) {
$joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
}
if (strpos($sql_commands, "`event`.") !== false) {
$joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
}
if (strpos($sql_commands, "`sign`.") !== false) {
$joins .= " LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`";
}
if (strpos($sql_commands, "`item-activity`.") !== false) {
$joins .= " LEFT JOIN `item-activity` ON `item-activity`.`id` = `item`.`iaid`";
}
if (strpos($sql_commands, "`item-content`.") !== false) {
$joins .= " LEFT JOIN `item-content` ON `item-content`.`id` = `item`.`icid`";
}
if (strpos($sql_commands, "`item-delivery-data`.") !== false) {
$joins .= " LEFT JOIN `item-delivery-data` ON `item-delivery-data`.`iid` = `item`.`id`";
}
if (strpos($sql_commands, "`permissionset`.") !== false) {
$joins .= " LEFT JOIN `permissionset` ON `permissionset`.`id` = `item`.`psid`";
}
if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
$joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
}
if (strpos($sql_commands, "`parent-item-author`.") !== false) {
$joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
}
return $joins;
}
/**
* @brief Add the field list for the "select" functions
*
* @param array $fields The field definition array
* @param array $selected The array with the selected fields from the "select" functions
*
* @return string The field list
*/
private static function constructSelectFields($fields, $selected)
{
if (!empty($selected)) {
$selected[] = 'internal-iid';
$selected[] = 'internal-iaid';
$selected[] = 'internal-icid';
$selected[] = 'internal-network';
}
if (in_array('verb', $selected)) {
$selected[] = 'internal-activity';
}
$selection = [];
foreach ($fields as $table => $table_fields) {
foreach ($table_fields as $field => $select) {
if (empty($selected) || in_array($select, $selected)) {
$legacy_fields = array_merge(self::DELIVERY_DATA_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
if (self::isLegacyMode() && in_array($select, $legacy_fields)) {
$selection[] = "`item`.`".$select."` AS `internal-item-" . $select . "`";
}
if (is_int($field)) {
$selection[] = "`" . $table . "`.`" . $select . "`";
} else {
$selection[] = "`" . $table . "`.`" . $field . "` AS `" . $select . "`";
}
}
}
}
return implode(", ", $selection);
}
/**
* @brief add table definition to fields in an SQL query
*
* @param string $query SQL query
* @param array $fields The field definition array
*
* @return string the changed SQL query
*/
private static function addTablesToFields($query, $fields)
{
foreach ($fields as $table => $table_fields) {
foreach ($table_fields as $alias => $field) {
if (is_int($alias)) {
$replace_field = $field;
} else {
$replace_field = $alias;
}
$search = "/([^\.])`" . $field . "`/i";
$replace = "$1`" . $table . "`.`" . $replace_field . "`";
$query = preg_replace($search, $replace, $query);
}
}
return $query;
}
/**
* @brief Generate a server unique item hash for linking between the item tables
*
* @param string $uri Item URI
* @param date $created Item creation date
*
* @return string the item hash
*/
private static function itemHash($uri, $created)
{
return round(strtotime($created) / 100) . hash('ripemd128', $uri);
}
/**
* @brief Update existing item entries
*
* @param array $fields The fields that are to be changed
* @param array $condition The condition for finding the item entries
*
* In the future we may have to change permissions as well.
* Then we had to add the user id as third parameter.
*
* A return value of "0" doesn't mean an error - but that 0 rows had been changed.
*
* @return integer|boolean number of affected rows - or "false" if there was an error
*/
public static function update(array $fields, array $condition)
{
if (empty($condition) || empty($fields)) {
return false;
}
// To ensure the data integrity we do it in an transaction
DBA::transaction();
// We cannot simply expand the condition to check for origin entries
// The condition needn't to be a simple array but could be a complex condition.
// And we have to execute this query before the update to ensure to fetch the same data.
$items = DBA::select('item', ['id', 'origin', 'uri', 'created', 'uri-hash', 'iaid', 'icid', 'tag', 'file'], $condition);
$content_fields = [];
foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
if (isset($fields[$field])) {
$content_fields[$field] = $fields[$field];
if (in_array($field, self::CONTENT_FIELDLIST) || !self::isLegacyMode()) {
unset($fields[$field]);
} else {
$fields[$field] = null;
}
}
}
$clear_fields = ['bookmark', 'type', 'author-name', 'author-avatar', 'author-link', 'owner-name', 'owner-avatar', 'owner-link'];
foreach ($clear_fields as $field) {
if (array_key_exists($field, $fields)) {
$fields[$field] = null;
}
}
if (array_key_exists('tag', $fields)) {
$tags = $fields['tag'];
$fields['tag'] = null;
} else {
$tags = '';
}
if (array_key_exists('file', $fields)) {
$files = $fields['file'];
$fields['file'] = null;
} else {
$files = '';
}
$delivery_data = ['postopts' => defaults($fields, 'postopts', ''),
'inform' => defaults($fields, 'inform', '')];
$fields['postopts'] = null;
$fields['inform'] = null;
if (!empty($fields)) {
$success = DBA::update('item', $fields, $condition);
if (!$success) {
DBA::close($items);
DBA::rollback();
return false;
}
}
// When there is no content for the "old" item table, this will count the fetched items
$rows = DBA::affectedRows();
while ($item = DBA::fetch($items)) {
// This part here can safely be removed when the legacy fields in the item had been removed
if (empty($item['uri-hash']) && !empty($item['uri']) && !empty($item['created'])) {
// Fetch the uri-hash from an existing item entry if there is one
$item_condition = ["`uri` = ? AND `uri-hash` != ''", $item['uri']];
$existing = DBA::selectfirst('item', ['uri-hash'], $item_condition);
if (DBA::isResult($existing)) {
$item['uri-hash'] = $existing['uri-hash'];
} else {
$item['uri-hash'] = self::itemHash($item['uri'], $item['created']);
}
DBA::update('item', ['uri-hash' => $item['uri-hash']], ['id' => $item['id']]);
DBA::update('item-activity', ['uri-hash' => $item['uri-hash']], ["`uri` = ? AND `uri-hash` = ''", $item['uri']]);
DBA::update('item-content', ['uri-plink-hash' => $item['uri-hash']], ["`uri` = ? AND `uri-plink-hash` = ''", $item['uri']]);
}
if (!empty($item['iaid']) || (!empty($content_fields['verb']) && (self::activityToIndex($content_fields['verb']) >= 0))) {
if (!empty($item['iaid'])) {
$update_condition = ['id' => $item['iaid']];
} else {
$update_condition = ['uri-hash' => $item['uri-hash']];
}
self::updateActivity($content_fields, $update_condition);
if (empty($item['iaid'])) {
$item_activity = DBA::selectFirst('item-activity', ['id'], ['uri-hash' => $item['uri-hash']]);
if (DBA::isResult($item_activity)) {
$item_fields = ['iaid' => $item_activity['id'], 'icid' => null];
foreach (self::MIXED_CONTENT_FIELDLIST as $field) {
if (self::isLegacyMode()) {
$item_fields[$field] = null;
} else {
unset($item_fields[$field]);
}
}
DBA::update('item', $item_fields, ['id' => $item['id']]);
if (!empty($item['icid']) && !DBA::exists('item', ['icid' => $item['icid']])) {
DBA::delete('item-content', ['id' => $item['icid']]);
}
}
} elseif (!empty($item['icid'])) {
DBA::update('item', ['icid' => null], ['id' => $item['id']]);
if (!DBA::exists('item', ['icid' => $item['icid']])) {
DBA::delete('item-content', ['id' => $item['icid']]);
}
}
} else {
if (!empty($item['icid'])) {
$update_condition = ['id' => $item['icid']];
} else {
$update_condition = ['uri-plink-hash' => $item['uri-hash']];
}
self::updateContent($content_fields, $update_condition);
if (empty($item['icid'])) {
$item_content = DBA::selectFirst('item-content', [], ['uri-plink-hash' => $item['uri-hash']]);
if (DBA::isResult($item_content)) {
$item_fields = ['icid' => $item_content['id']];
// Clear all fields in the item table that have a content in the item-content table
foreach ($item_content as $field => $content) {
if (in_array($field, self::MIXED_CONTENT_FIELDLIST) && !empty($item_content[$field])) {
if (self::isLegacyMode()) {
$item_fields[$field] = null;
} else {
unset($item_fields[$field]);
}
}
}
DBA::update('item', $item_fields, ['id' => $item['id']]);
}
}
}
if (!empty($tags)) {
Term::insertFromTagFieldByItemId($item['id'], $tags);
if (!empty($item['tag'])) {
DBA::update('item', ['tag' => ''], ['id' => $item['id']]);
}
}
if (!empty($files)) {
Term::insertFromFileFieldByItemId($item['id'], $files);
if (!empty($item['file'])) {
DBA::update('item', ['file' => ''], ['id' => $item['id']]);
}
}
self::updateDeliveryData($item['id'], $delivery_data);
self::updateThread($item['id']);
// We only need to notfiy others when it is an original entry from us.
// Only call the notifier when the item has some content relevant change.
if ($item['origin'] && in_array('edited', array_keys($fields))) {
Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
}
}
DBA::close($items);
DBA::commit();
return $rows;
}
/**
* @brief Delete an item and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $priority Priority for the notification
*/
public static function delete($condition, $priority = PRIORITY_HIGH)
{
$items = DBA::select('item', ['id'], $condition);
while ($item = DBA::fetch($items)) {
self::deleteById($item['id'], $priority);
}
DBA::close($items);
}
/**
* @brief Delete an item for an user and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $uid User who wants to delete this item
*/
public static function deleteForUser($condition, $uid)
{
if ($uid == 0) {
return;
}
$items = DBA::select('item', ['id', 'uid'], $condition);
while ($item = DBA::fetch($items)) {
// "Deleting" global items just means hiding them
if ($item['uid'] == 0) {
DBA::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
} elseif ($item['uid'] == $uid) {
self::deleteById($item['id'], PRIORITY_HIGH);
} else {
logger('Wrong ownership. Not deleting item ' . $item['id']);
}
}
DBA::close($items);
}
/**
* @brief Delete an item and notify others about it - if it was ours
*
* @param integer $item_id Item ID that should be delete
* @param integer $priority Priority for the notification
*
* @return boolean success
*/
private static function deleteById($item_id, $priority = PRIORITY_HIGH)
{
// locate item to be deleted
$fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
'deleted', 'file', 'resource-id', 'event-id', 'attach',
'verb', 'object-type', 'object', 'target', 'contact-id',
'icid', 'iaid', 'psid'];
$item = self::selectFirst($fields, ['id' => $item_id]);
if (!DBA::isResult($item)) {
logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
return false;
}
if ($item['deleted']) {
logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
return false;
}
$parent = self::selectFirst(['origin'], ['id' => $item['parent']]);
if (!DBA::isResult($parent)) {
$parent = ['origin' => false];
}
// clean up categories and tags so they don't end up as orphans
$matches = false;
$cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
}
}
$matches = false;
$cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
}
}
/*
* If item is a link to a photo resource, nuke all the associated photos
* (visitors will not have photo resources)
* This only applies to photos uploaded from the photos page. Photos inserted into a post do not
* generate a resource-id and therefore aren't intimately linked to the item.
*/
if (strlen($item['resource-id'])) {
DBA::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
}
// If item is a link to an event, delete the event.
if (intval($item['event-id'])) {
Event::delete($item['event-id']);
}
// If item has attachments, drop them
foreach (explode(", ", $item['attach']) as $attach) {
preg_match("|attach/(\d+)|", $attach, $matches);
if (is_array($matches) && count($matches) > 1) {
DBA::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
}
}
// Delete tags that had been attached to other items
self::deleteTagsFromItem($item);
// Set the item to "deleted"
$item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
DBA::update('item', $item_fields, ['id' => $item['id']]);
Term::insertFromTagFieldByItemId($item['id'], '');
Term::insertFromFileFieldByItemId($item['id'], '');
self::deleteThread($item['id'], $item['parent-uri']);
if (!self::exists(["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
}
DBA::delete('item-delivery-data', ['iid' => $item['id']]);
if (!empty($item['iaid']) && !DBA::exists('item', ['iaid' => $item['iaid'], 'deleted' => false])) {
DBA::delete('item-activity', ['id' => $item['iaid']], ['cascade' => false]);
}
if (!empty($item['icid']) && !DBA::exists('item', ['icid' => $item['icid'], 'deleted' => false])) {
DBA::delete('item-content', ['id' => $item['icid']], ['cascade' => false]);
}
// When the permission set will be used in photo and events as well,
// this query here needs to be extended.
if (!empty($item['psid']) && !DBA::exists('item', ['psid' => $item['psid'], 'deleted' => false])) {
DBA::delete('permissionset', ['id' => $item['psid']], ['cascade' => false]);
}
// If it's the parent of a comment thread, kill all the kids
if ($item['id'] == $item['parent']) {
self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
}
// Is it our comment and/or our thread?
if ($item['origin'] || $parent['origin']) {
// When we delete the original post we will delete all existing copies on the server as well
self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
// send the notification upstream/downstream
Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
} elseif ($item['uid'] != 0) {
// When we delete just our local user copy of an item, we have to set a marker to hide it
$global_item = self::selectFirst(['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
if (DBA::isResult($global_item)) {
DBA::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
}
}
logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
return true;
}
private static function deleteTagsFromItem($item)
{
if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
return;
}
$xo = XML::parseString($item["object"], false);
$xt = XML::parseString($item["target"], false);
if ($xt->type != ACTIVITY_OBJ_NOTE) {
return;
}
$i = self::selectFirst(['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
if (!DBA::isResult($i)) {
return;
}
// For tags, the owner cannot remove the tag on the author's copy of the post.
$owner_remove = ($item["contact-id"] == $i["contact-id"]);
$author_copy = $item["origin"];
if (($owner_remove && $author_copy) || !$owner_remove) {
return;
}
$tags = explode(',', $i["tag"]);
$newtags = [];
if (count($tags)) {
foreach ($tags as $tag) {
if (trim($tag) !== trim($xo->body)) {
$newtags[] = trim($tag);
}
}
}
self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
}
private static function guid($item, $notify)
{
if (!empty($item['guid'])) {
return notags(trim($item['guid']));
}
if ($notify) {
// We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
// We add the hash of our own host because our host is the original creator of the post.
$prefix_host = get_app()->get_hostname();
} else {
$prefix_host = '';
// We are only storing the post so we create a GUID from the original hostname.
if (!empty($item['author-link'])) {
$parsed = parse_url($item['author-link']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
if (empty($prefix_host) && !empty($item['plink'])) {
$parsed = parse_url($item['plink']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
if (empty($prefix_host) && !empty($item['uri'])) {
$parsed = parse_url($item['uri']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
// Is it in the format data@host.tld? - Used for mail contacts
if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
$mailparts = explode('@', $item['author-link']);
$prefix_host = array_pop($mailparts);
}
}
if (!empty($item['plink'])) {
$guid = self::guidFromUri($item['plink'], $prefix_host);
} elseif (!empty($item['uri'])) {
$guid = self::guidFromUri($item['uri'], $prefix_host);
} else {
$guid = System::createGUID(32, hash('crc32', $prefix_host));
}
return $guid;
}
private static function contactId($item)
{
$contact_id = (int)$item["contact-id"];
if (!empty($contact_id)) {
return $contact_id;
}
logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
/*
* First we are looking for a suitable contact that matches with the author of the post
* This is done only for comments
*/
if ($item['parent-uri'] != $item['uri']) {
$contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
}
// If not present then maybe the owner was found
if ($contact_id == 0) {
$contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
}
// Still missing? Then use the "self" contact of the current user
if ($contact_id == 0) {
$self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
if (DBA::isResult($self)) {
$contact_id = $self["id"];
}
}
logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
return $contact_id;
}
// This function will finally cover most of the preparation functionality in mod/item.php
public static function prepare(&$item)
{
$data = BBCode::getAttachmentData($item['body']);
if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $item['body'], $match, PREG_SET_ORDER) || isset($data["type"]))
&& ($posttype != Item::PT_PERSONAL_NOTE)) {
$posttype = Item::PT_PAGE;
$objecttype = ACTIVITY_OBJ_BOOKMARK;
}
}
public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
{
$a = get_app();
// If it is a posting where users should get notifications, then define it as wall posting
if ($notify) {
$item['wall'] = 1;
$item['origin'] = 1;
$item['network'] = NETWORK_DFRN;
$item['protocol'] = PROTOCOL_DFRN;
if (is_int($notify)) {
$priority = $notify;
} else {
$priority = PRIORITY_HIGH;
}
} else {
$item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
}
$item['guid'] = self::guid($item, $notify);
$item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
// Store conversation data
$item = Conversation::insert($item);
/*
* If a Diaspora signature structure was passed in, pull it out of the
* item array and set it aside for later storage.
*/
$dsprsig = null;
if (x($item, 'dsprsig')) {
$encoded_signature = $item['dsprsig'];
$dsprsig = json_decode(base64_decode($item['dsprsig']));
unset($item['dsprsig']);
}
if (!empty($item['diaspora_signed_text'])) {
$diaspora_signed_text = $item['diaspora_signed_text'];
unset($item['diaspora_signed_text']);
} else {
$diaspora_signed_text = '';
}
// Converting the plink
/// @TODO Check if this is really still needed
if ($item['network'] == NETWORK_OSTATUS) {
if (isset($item['plink'])) {
$item['plink'] = OStatus::convertHref($item['plink']);
} elseif (isset($item['uri'])) {
$item['plink'] = OStatus::convertHref($item['uri']);
}
}
if (!empty($item['thr-parent'])) {
$item['parent-uri'] = $item['thr-parent'];
}
if (isset($item['gravity'])) {
$item['gravity'] = intval($item['gravity']);
} elseif ($item['parent-uri'] === $item['uri']) {
$item['gravity'] = GRAVITY_PARENT;
} elseif (activity_match($item['verb'], ACTIVITY_POST)) {
$item['gravity'] = GRAVITY_COMMENT;
} else {
$item['gravity'] = GRAVITY_UNKNOWN; // Should not happen
logger('Unknown gravity for verb: ' . $item['verb'], LOGGER_DEBUG);
}
$uid = intval($item['uid']);
// check for create date and expire time
$expire_interval = Config::get('system', 'dbclean-expire-days', 0);
$user = DBA::selectFirst('user', ['expire'], ['uid' => $uid]);
if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
$expire_interval = $user['expire'];
}
if (($expire_interval > 0) && !empty($item['created'])) {
$expire_date = time() - ($expire_interval * 86400);
$created_date = strtotime($item['created']);
if ($created_date < $expire_date) {
logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
return 0;
}
}
/*
* Do we already have this item?
* We have to check several networks since Friendica posts could be repeated
* via OStatus (maybe Diasporsa as well)
*/
if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
$condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
trim($item['uri']), $item['uid'],
NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
$existing = self::selectFirst(['id', 'network'], $condition);
if (DBA::isResult($existing)) {
// We only log the entries with a different user id than 0. Otherwise we would have too many false positives
if ($uid != 0) {
logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
}
return $existing["id"];
}
}
// Ensure to always have the same creation date.
$existing = DBA::selectfirst('item', ['created', 'uri-hash'], ['uri' => $item['uri']]);
if (DBA::isResult($existing)) {
$item['created'] = $existing['created'];
$item['uri-hash'] = $existing['uri-hash'];
}
$item['wall'] = intval(defaults($item, 'wall', 0));
$item['extid'] = trim(defaults($item, 'extid', ''));
$item['author-name'] = trim(defaults($item, 'author-name', ''));
$item['author-link'] = trim(defaults($item, 'author-link', ''));
$item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
$item['owner-name'] = trim(defaults($item, 'owner-name', ''));
$item['owner-link'] = trim(defaults($item, 'owner-link', ''));
$item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
$item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
$item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
$item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
$item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
$item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
$item['title'] = trim(defaults($item, 'title', ''));
$item['location'] = trim(defaults($item, 'location', ''));
$item['coord'] = trim(defaults($item, 'coord', ''));
$item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
$item['deleted'] = 0;
$item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
$item['post-type'] = defaults($item, 'post-type', self::PT_ARTICLE);
$item['verb'] = trim(defaults($item, 'verb', ''));
$item['object-type'] = trim(defaults($item, 'object-type', ''));
$item['object'] = trim(defaults($item, 'object', ''));
$item['target-type'] = trim(defaults($item, 'target-type', ''));
$item['target'] = trim(defaults($item, 'target', ''));
$item['plink'] = trim(defaults($item, 'plink', ''));
$item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
$item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
$item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
$item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
$item['private'] = intval(defaults($item, 'private', 0));
$item['body'] = trim(defaults($item, 'body', ''));
$item['tag'] = trim(defaults($item, 'tag', ''));
$item['attach'] = trim(defaults($item, 'attach', ''));
$item['app'] = trim(defaults($item, 'app', ''));
$item['origin'] = intval(defaults($item, 'origin', 0));
$item['postopts'] = trim(defaults($item, 'postopts', ''));
$item['resource-id'] = trim(defaults($item, 'resource-id', ''));
$item['event-id'] = intval(defaults($item, 'event-id', 0));
$item['inform'] = trim(defaults($item, 'inform', ''));
$item['file'] = trim(defaults($item, 'file', ''));
// Unique identifier to be linked against item-activities and item-content
$item['uri-hash'] = defaults($item, 'uri-hash', self::itemHash($item['uri'], $item['created']));
// When there is no content then we don't post it
if ($item['body'].$item['title'] == '') {
logger('No body, no title.');
return 0;
}
self::addLanguageToItemArray($item);
// Items cannot be stored before they happen ...
if ($item['created'] > DateTimeFormat::utcNow()) {
$item['created'] = DateTimeFormat::utcNow();
}
// We haven't invented time travel by now.
if ($item['edited'] > DateTimeFormat::utcNow()) {
$item['edited'] = DateTimeFormat::utcNow();
}
$item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
// The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
$item["contact-id"] = self::contactId($item);
$default = ['url' => $item['author-link'], 'name' => $item['author-name'],
'photo' => $item['author-avatar'], 'network' => $item['network']];
$item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
if (Contact::isBlocked($item["author-id"])) {
logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
return 0;
}
$default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
'photo' => $item['owner-avatar'], 'network' => $item['network']];
$item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
if (Contact::isBlocked($item["owner-id"])) {
logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
return 0;
}
// These fields aren't stored anymore in the item table, they are fetched upon request
unset($item['author-link']);
unset($item['author-name']);
unset($item['author-avatar']);
unset($item['owner-link']);
unset($item['owner-name']);
unset($item['owner-avatar']);
if ($item['network'] == NETWORK_PHANTOM) {
logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
$item['network'] = NETWORK_DFRN;
logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
}
// Checking if there is already an item with the same guid
logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
$condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
if (self::exists($condition)) {
logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
return 0;
}
// Check for hashtags in the body and repair or add hashtag links
self::setHashtags($item);
$item['thr-parent'] = $item['parent-uri'];
$notify_type = '';
$allow_cid = '';
$allow_gid = '';
$deny_cid = '';
$deny_gid = '';
if ($item['parent-uri'] === $item['uri']) {
$parent_id = 0;
$parent_deleted = 0;
$allow_cid = $item['allow_cid'];
$allow_gid = $item['allow_gid'];
$deny_cid = $item['deny_cid'];
$deny_gid = $item['deny_gid'];
$notify_type = 'wall-new';
} else {
// find the parent and snarf the item id and ACLs
// and anything else we need to inherit
$fields = ['uri', 'parent-uri', 'id', 'deleted',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'wall', 'private', 'forum_mode', 'origin'];
$condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
$params = ['order' => ['id' => false]];
$parent = self::selectFirst($fields, $condition, $params);
if (DBA::isResult($parent)) {
// is the new message multi-level threaded?
// even though we don't support it now, preserve the info
// and re-attach to the conversation parent.
if ($parent['uri'] != $parent['parent-uri']) {
$item['parent-uri'] = $parent['parent-uri'];
$condition = ['uri' => $item['parent-uri'],
'parent-uri' => $item['parent-uri'],
'uid' => $item['uid']];
$params = ['order' => ['id' => false]];
$toplevel_parent = self::selectFirst($fields, $condition, $params);
if (DBA::isResult($toplevel_parent)) {
$parent = $toplevel_parent;
}
}
$parent_id = $parent['id'];
$parent_deleted = $parent['deleted'];
$allow_cid = $parent['allow_cid'];
$allow_gid = $parent['allow_gid'];
$deny_cid = $parent['deny_cid'];
$deny_gid = $parent['deny_gid'];
$item['wall'] = $parent['wall'];
$notify_type = 'comment-new';
/*
* If the parent is private, force privacy for the entire conversation
* This differs from the above settings as it subtly allows comments from
* email correspondents to be private even if the overall thread is not.
*/
if ($parent['private']) {
$item['private'] = $parent['private'];
}
/*
* Edge case. We host a public forum that was originally posted to privately.
* The original author commented, but as this is a comment, the permissions
* weren't fixed up so it will still show the comment as private unless we fix it here.
*/
if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
$item['private'] = 0;
}
// If its a post from myself then tag the thread as "mention"
logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
$user = DBA::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
if (DBA::isResult($user)) {
$self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
$self_id = Contact::getIdForURL($self, 0, true);
logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
DBA::update('thread', ['mention' => true], ['iid' => $parent_id]);
logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
}
}
} else {
/*
* Allow one to see reply tweets from status.net even when
* we don't have or can't see the original post.
*/
if ($force_parent) {
logger('$force_parent=true, reply converted to top-level post.');
$parent_id = 0;
$item['parent-uri'] = $item['uri'];
$item['gravity'] = GRAVITY_PARENT;
} else {
logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
return 0;
}
$parent_deleted = 0;
}
}
$condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
$item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
if (self::exists($condition)) {
logger('duplicated item with the same uri found. '.print_r($item,true));
return 0;
}
// On Friendica and Diaspora the GUID is unique
if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
$condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
if (self::exists($condition)) {
logger('duplicated item with the same guid found. '.print_r($item,true));
return 0;
}
} else {
// Check for an existing post with the same content. There seems to be a problem with OStatus.
$condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
$item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
if (self::exists($condition)) {
logger('duplicated item with the same body found. '.print_r($item,true));
return 0;
}
}
// Is this item available in the global items (with uid=0)?
if ($item["uid"] == 0) {
$item["global"] = true;
// Set the global flag on all items if this was a global item entry
DBA::update('item', ['global' => true], ['uri' => $item["uri"]]);
} else {
$item["global"] = self::exists(['uid' => 0, 'uri' => $item["uri"]]);
}
// ACL settings
if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
$private = 1;
} else {
$private = $item['private'];
}
$item["allow_cid"] = $allow_cid;
$item["allow_gid"] = $allow_gid;
$item["deny_cid"] = $deny_cid;
$item["deny_gid"] = $deny_gid;
$item["private"] = $private;
$item["deleted"] = $parent_deleted;
// Fill the cache field
put_item_in_cache($item);
if ($notify) {
$item['edit'] = false;
$item['parent'] = $parent_id;
Addon::callHooks('post_local', $item);
unset($item['edit']);
unset($item['parent']);
} else {
Addon::callHooks('post_remote', $item);
}
// This array field is used to trigger some automatic reactions
// It is mainly used in the "post_local" hook.
unset($item['api_source']);
if (x($item, 'cancel')) {
logger('post cancelled by addon.');
return 0;
}
/*
* Check for already added items.
* There is a timing issue here that sometimes creates double postings.
* An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
*/
if ($item["uid"] == 0) {
if (self::exists(['uri' => trim($item['uri']), 'uid' => 0])) {
logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
return 0;
}
}
logger('' . print_r($item,true), LOGGER_DATA);
if (array_key_exists('tag', $item)) {
$tags = $item['tag'];
unset($item['tag']);
} else {
$tags = '';
}
if (array_key_exists('file', $item)) {
$files = $item['file'];
unset($item['file']);
} else {
$files = '';
}
// Creates or assigns the permission set
$item['psid'] = PermissionSet::fetchIDForPost($item);
// We are doing this outside of the transaction to avoid timing problems
if (!self::insertActivity($item)) {
self::insertContent($item);
}
$delivery_data = ['postopts' => defaults($item, 'postopts', ''),
'inform' => defaults($item, 'inform', '')];
unset($item['postopts']);
unset($item['inform']);
DBA::transaction();
$ret = DBA::insert('item', $item);
// When the item was successfully stored we fetch the ID of the item.
if (DBA::isResult($ret)) {
$current_post = DBA::lastInsertId();
} else {
// This can happen - for example - if there are locking timeouts.
DBA::rollback();
// Store the data into a spool file so that we can try again later.
// At first we restore the Diaspora signature that we removed above.
if (isset($encoded_signature)) {
$item['dsprsig'] = $encoded_signature;
}
// Now we store the data in the spool directory
// We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
$file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
$spoolpath = get_spoolpath();
if ($spoolpath != "") {
$spool = $spoolpath.'/'.$file;
// Ensure to have the removed data from above again in the item array
$item = array_merge($item, $delivery_data);
file_put_contents($spool, json_encode($item));
logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
}
return 0;
}
if ($current_post == 0) {
// This is one of these error messages that never should occur.
logger("couldn't find created item - we better quit now.");
DBA::rollback();
return 0;
}
// How much entries have we created?
// We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
$entries = DBA::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
if ($entries > 1) {
// There are duplicates. We delete our just created entry.
logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
// Yes, we could do a rollback here - but we are having many users with MyISAM.
DBA::delete('item', ['id' => $current_post]);
DBA::commit();
return 0;
} elseif ($entries == 0) {
// This really should never happen since we quit earlier if there were problems.
logger("Something is terribly wrong. We haven't found our created entry.");
DBA::rollback();
return 0;
}
logger('created item '.$current_post);
self::updateContact($item);
if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
$parent_id = $current_post;
}
// Set parent id
DBA::update('item', ['parent' => $parent_id], ['id' => $current_post]);
$item['id'] = $current_post;
$item['parent'] = $parent_id;
// update the commented timestamp on the parent
// Only update "commented" if it is really a comment
if (($item['gravity'] != GRAVITY_ACTIVITY) || !Config::get("system", "like_no_comment")) {
DBA::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
} else {
DBA::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
}
if ($dsprsig) {
/*
* Friendica servers lower than 3.4.3-2 had double encoded the signature ...
* We can check for this condition when we decode and encode the stuff again.
*/
if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
$dsprsig->signature = base64_decode($dsprsig->signature);
logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
}
DBA::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
}
if (!empty($diaspora_signed_text)) {
// Formerly we stored the signed text, the signature and the author in different fields.
// We now store the raw data so that we are more flexible.
DBA::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
}
$deleted = self::tagDeliver($item['uid'], $current_post);
/*
* current post can be deleted if is for a community page and no mention are
* in it.
*/
if (!$deleted && !$dontcache) {
$posted_item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $current_post]);
if (DBA::isResult($posted_item)) {
if ($notify) {
Addon::callHooks('post_local_end', $posted_item);
} else {
Addon::callHooks('post_remote_end', $posted_item);
}
} else {
logger('new item not found in DB, id ' . $current_post);
}
}
if ($item['parent-uri'] === $item['uri']) {
self::addThread($current_post);
} else {
self::updateThread($parent_id);
}
$delivery_data['iid'] = $current_post;
self::insertDeliveryData($delivery_data);
DBA::commit();
/*
* Due to deadlock issues with the "term" table we are doing these steps after the commit.
* This is not perfect - but a workable solution until we found the reason for the problem.
*/
if (!empty($tags)) {
Term::insertFromTagFieldByItemId($current_post, $tags);
}
if (!empty($files)) {
Term::insertFromFileFieldByItemId($current_post, $files);
}
if ($item['parent-uri'] === $item['uri']) {
self::addShadow($current_post);
} else {
self::addShadowPost($current_post);
}
check_user_notification($current_post);
if ($notify) {
Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
} elseif (!empty($parent) && $parent['origin']) {
Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
}
return $current_post;
}
/**
* @brief Insert a new item delivery data entry
*
* @param array $item The item fields that are to be inserted
*/
private static function insertDeliveryData($delivery_data)
{
if (empty($delivery_data['iid']) || (empty($delivery_data['postopts']) && empty($delivery_data['inform']))) {
return;
}
DBA::insert('item-delivery-data', $delivery_data);
}
/**
* @brief Update an existing item delivery data entry
*
* @param integer $id The item id that is to be updated
* @param array $item The item fields that are to be inserted
*/
private static function updateDeliveryData($id, $delivery_data)
{
if (empty($id) || (empty($delivery_data['postopts']) && empty($delivery_data['inform']))) {
return;
}
DBA::update('item-delivery-data', $delivery_data, ['iid' => $id], true);
}
/**
* @brief Insert a new item content entry
*
* @param array $item The item fields that are to be inserted
*/
private static function insertActivity(&$item)
{
$activity_index = self::activityToIndex($item['verb']);
if ($activity_index < 0) {
return false;
}
$fields = ['uri' => $item['uri'], 'activity' => $activity_index,
'uri-hash' => $item['uri-hash']];
// We just remove everything that is content
foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
unset($item[$field]);
}
// To avoid timing problems, we are using locks.
$locked = Lock::acquire('item_insert_activity');
if (!$locked) {
logger("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
}
// Do we already have this content?
$item_activity = DBA::selectFirst('item-activity', ['id'], ['uri-hash' => $item['uri-hash']]);
if (DBA::isResult($item_activity)) {
$item['iaid'] = $item_activity['id'];
logger('Fetched activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
} elseif (DBA::insert('item-activity', $fields)) {
$item['iaid'] = DBA::lastInsertId();
logger('Inserted activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
} else {
// This shouldn't happen.
logger('Could not insert activity for URI ' . $item['uri'] . ' - should not happen');
return false;
}
if ($locked) {
Lock::release('item_insert_activity');
}
return true;
}
/**
* @brief Insert a new item content entry
*
* @param array $item The item fields that are to be inserted
*/
private static function insertContent(&$item)
{
$fields = ['uri' => $item['uri'], 'uri-plink-hash' => $item['uri-hash']];
foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
if (isset($item[$field])) {
$fields[$field] = $item[$field];
unset($item[$field]);
}
}
// To avoid timing problems, we are using locks.
$locked = Lock::acquire('item_insert_content');
if (!$locked) {
logger("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
}
// Do we already have this content?
$item_content = DBA::selectFirst('item-content', ['id'], ['uri-plink-hash' => $item['uri-hash']]);
if (DBA::isResult($item_content)) {
$item['icid'] = $item_content['id'];
logger('Fetched content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
} elseif (DBA::insert('item-content', $fields)) {
$item['icid'] = DBA::lastInsertId();
logger('Inserted content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
} else {
// This shouldn't happen.
logger('Could not insert content for URI ' . $item['uri'] . ' - should not happen');
}
if ($locked) {
Lock::release('item_insert_content');
}
}
/**
* @brief Update existing item content entries
*
* @param array $item The item fields that are to be changed
* @param array $condition The condition for finding the item content entries
*/
private static function updateActivity($item, $condition)
{
if (empty($item['verb'])) {
return false;
}
$activity_index = self::activityToIndex($item['verb']);
if ($activity_index < 0) {
return false;
}
$fields = ['activity' => $activity_index];
logger('Update activity for ' . json_encode($condition));
DBA::update('item-activity', $fields, $condition, true);
return true;
}
/**
* @brief Update existing item content entries
*
* @param array $item The item fields that are to be changed
* @param array $condition The condition for finding the item content entries
*/
private static function updateContent($item, $condition)
{
// We have to select only the fields from the "item-content" table
$fields = [];
foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
if (isset($item[$field])) {
$fields[$field] = $item[$field];
}
}
if (empty($fields)) {
// when there are no fields at all, just use the condition
// This is to ensure that we always store content.
$fields = $condition;
}
logger('Update content for ' . json_encode($condition));
DBA::update('item-content', $fields, $condition, true);
}
/**
* @brief Distributes public items to the receivers
*
* @param integer $itemid Item ID that should be added
* @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
*/
public static function distribute($itemid, $signed_text = '')
{
$condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
$parent = self::selectFirst(['owner-id'], $condition);
if (!DBA::isResult($parent)) {
return;
}
// Only distribute public items from native networks
$condition = ['id' => $itemid, 'uid' => 0,
'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
$item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
if (!DBA::isResult($item)) {
return;
}
$origin = $item['origin'];
unset($item['id']);
unset($item['parent']);
unset($item['mention']);
unset($item['wall']);
unset($item['origin']);
unset($item['starred']);
$users = [];
$condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
$parent['owner-id'], Contact::SHARING, Contact::FRIEND];
$contacts = DBA::select('contact', ['uid'], $condition);
while ($contact = DBA::fetch($contacts)) {
$users[$contact['uid']] = $contact['uid'];
}
$origin_uid = 0;
if ($item['uri'] != $item['parent-uri']) {
$parents = self::select(['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
while ($parent = DBA::fetch($parents)) {
$users[$parent['uid']] = $parent['uid'];
if ($parent['origin'] && !$origin) {
$origin_uid = $parent['uid'];
}
}
}
foreach ($users as $uid) {
if ($origin_uid == $uid) {
$item['diaspora_signed_text'] = $signed_text;
}
self::storeForUser($itemid, $item, $uid);
}
}
/**
* @brief Store public items for the receivers
*
* @param integer $itemid Item ID that should be added
* @param array $item The item entry that will be stored
* @param integer $uid The user that will receive the item entry
*/
private static function storeForUser($itemid, $item, $uid)
{
$item['uid'] = $uid;
$item['origin'] = 0;
$item['wall'] = 0;
if ($item['uri'] == $item['parent-uri']) {
$item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
} else {
$item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
}
if (empty($item['contact-id'])) {
$self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
if (!DBA::isResult($self)) {
return;
}
$item['contact-id'] = $self['id'];
}
/// @todo Handling of "event-id"
$notify = false;
if ($item['uri'] == $item['parent-uri']) {
$contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
if (DBA::isResult($contact)) {
$notify = self::isRemoteSelf($contact, $item);
}
}
$distributed = self::insert($item, false, $notify, true);
if (!$distributed) {
logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
} else {
logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
}
}
/**
* @brief Add a shadow entry for a given item id that is a thread starter
*
* We store every public item entry additionally with the user id "0".
* This is used for the community page and for the search.
* It is planned that in the future we will store public item entries only once.
*
* @param integer $itemid Item ID that should be added
*/
public static function addShadow($itemid)
{
$fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network', 'uri'];
$condition = ['id' => $itemid, 'parent' => [0, $itemid]];
$item = self::selectFirst($fields, $condition);
if (!DBA::isResult($item)) {
return;
}
// is it already a copy?
if (($itemid == 0) || ($item['uid'] == 0)) {
return;
}
// Is it a visible public post?
if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
return;
}
// is it an entry from a connector? Only add an entry for natively connected networks
if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
return;
}
if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
return;
}
$item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
if (DBA::isResult($item)) {
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['postopts']);
unset($item['inform']);
if ($item['uri'] == $item['parent-uri']) {
$item['contact-id'] = $item['owner-id'];
} else {
$item['contact-id'] = $item['author-id'];
}
$public_shadow = self::insert($item, false, false, true);
logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
}
}
/**
* @brief Add a shadow entry for a given item id that is a comment
*
* This function does the same like the function above - but for comments
*
* @param integer $itemid Item ID that should be added
*/
public static function addShadowPost($itemid)
{
$item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
if (!DBA::isResult($item)) {
return;
}
// Is it a toplevel post?
if ($item['id'] == $item['parent']) {
self::addShadow($itemid);
return;
}
// Is this a shadow entry?
if ($item['uid'] == 0) {
return;
}
// Is there a shadow parent?
if (!self::exists(['uri' => $item['parent-uri'], 'uid' => 0])) {
return;
}
// Is there already a shadow entry?
if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
return;
}
// Save "origin" and "parent" state
$origin = $item['origin'];
$parent = $item['parent'];
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['postopts']);
unset($item['inform']);
$item['contact-id'] = Contact::getIdForURL($item['author-link']);
$public_shadow = self::insert($item, false, false, true);
logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
// If this was a comment to a Diaspora post we don't get our comment back.
// This means that we have to distribute the comment by ourselves.
if ($origin && self::exists(['id' => $parent, 'network' => NETWORK_DIASPORA])) {
self::distribute($public_shadow);
}
}
/**
* Adds a language specification in a "language" element of given $arr.
* Expects "body" element to exist in $arr.
*/
private static function addLanguageToItemArray(&$item)
{
$naked_body = BBCode::toPlaintext($item['body'], false);
$ld = new Text_LanguageDetect();
$ld->setNameMode(2);
$languages = $ld->detect($naked_body, 3);
if (is_array($languages)) {
$item['language'] = json_encode($languages);
}
}
/**
* @brief Creates an unique guid out of a given uri
*
* @param string $uri uri of an item entry
* @param string $host hostname for the GUID prefix
* @return string unique guid
*/
public static function guidFromUri($uri, $host)
{
// Our regular guid routine is using this kind of prefix as well
// We have to avoid that different routines could accidentally create the same value
$parsed = parse_url($uri);
// We use a hash of the hostname as prefix for the guid
$guid_prefix = hash("crc32", $host);
// Remove the scheme to make sure that "https" and "http" doesn't make a difference
unset($parsed["scheme"]);
// Glue it together to be able to make a hash from it
$host_id = implode("/", $parsed);
// We could use any hash algorithm since it isn't a security issue
$host_hash = hash("ripemd128", $host_id);
return $guid_prefix.$host_hash;
}
/**
* generate an unique URI
*
* @param integer $uid User id
* @param string $guid An existing GUID (Otherwise it will be generated)
*
* @return string
*/
public static function newURI($uid, $guid = "")
{
if ($guid == "") {
$guid = System::createGUID(32);
}
$hostname = self::getApp()->get_hostname();
$user = DBA::selectFirst('user', ['nickname'], ['uid' => $uid]);
$uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
return $uri;
}
/**
* @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
*
* This can be used to filter for inactive contacts.
* Only do this for public postings to avoid privacy problems, since poco data is public.
* Don't set this value if it isn't from the owner (could be an author that we don't know)
*
* @param array $arr Contains the just posted item record
*/
private static function updateContact($arr)
{
// Unarchive the author
$contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
if (DBA::isResult($contact)) {
Contact::unmarkForArchival($contact);
}
// Unarchive the contact if it's not our own contact
$contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
if (DBA::isResult($contact)) {
Contact::unmarkForArchival($contact);
}
$update = (!$arr['private'] && ((defaults($arr, 'author-link', '') === defaults($arr, 'owner-link', '')) || ($arr["parent-uri"] === $arr["uri"])));
// Is it a forum? Then we don't care about the rules from above
if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
$update = true;
}
}
if ($update) {
DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['contact-id']]);
}
// Now do the same for the system wide contacts with uid=0
if (!$arr['private']) {
DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['owner-id']]);
if ($arr['owner-id'] != $arr['author-id']) {
DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['author-id']]);
}
}
}
public static function setHashtags(&$item)
{
$tags = get_tags($item["body"]);
// No hashtags?
if (!count($tags)) {
return false;
}
// This sorting is important when there are hashtags that are part of other hashtags
// Otherwise there could be problems with hashtags like #test and #test2
rsort($tags);
$URLSearchString = "^\[\]";
// All hashtags should point to the home server if "local_tags" is activated
if (Config::get('system', 'local_tags')) {
$item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
$item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
}
// mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
$item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
function ($match) {
return ("[url=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/url]");
}, $item["body"]);
$item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
function ($match) {
return ("[bookmark=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/bookmark]");
}, $item["body"]);
$item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
function ($match) {
return ("[attachment " . str_replace("#", "&num;", $match[1]) . "]" . $match[2] . "[/attachment]");
}, $item["body"]);
// Repair recursive urls
$item["body"] = preg_replace("/&num;\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"&num;$2", $item["body"]);
foreach ($tags as $tag) {
if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
continue;
}
$basetag = str_replace('_',' ',substr($tag,1));
$newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
$item["body"] = str_replace($tag, $newtag, $item["body"]);
if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
if (strlen($item["tag"])) {
$item["tag"] = ','.$item["tag"];
}
$item["tag"] = $newtag.$item["tag"];
}
}
// Convert back the masked hashtags
$item["body"] = str_replace("&num;", "#", $item["body"]);
}
public static function getGuidById($id)
{
$item = self::selectFirst(['guid'], ['id' => $id]);
if (DBA::isResult($item)) {
return $item['guid'];
} else {
return '';
}
}
public static function getIdAndNickByGuid($guid, $uid = 0)
{
$nick = "";
$id = 0;
if ($uid == 0) {
$uid == local_user();
}
// Does the given user have this item?
if ($uid) {
$item = DBA::fetchFirst("SELECT `item`.`id`, `user`.`nickname` FROM `item`
INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
if (DBA::isResult($item)) {
$id = $item["id"];
$nick = $item["nickname"];
}
}
// Or is it anywhere on the server?
if ($nick == "") {
$item = DBA::fetchFirst("SELECT `item`.`id`, `user`.`nickname` FROM `item`
INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND NOT `item`.`private` AND `item`.`wall`
AND `item`.`guid` = ?", $guid);
if (DBA::isResult($item)) {
$id = $item["id"];
$nick = $item["nickname"];
}
}
return ["nick" => $nick, "id" => $id];
}
/**
* look for mention tags and setup a second delivery chain for forum/community posts if appropriate
* @param int $uid
* @param int $item_id
* @return bool true if item was deleted, else false
*/
private static function tagDeliver($uid, $item_id)
{
$mention = false;