diff options
Diffstat (limited to 'src/SemanticScuttle/Service/bookmarkservice.php')
| -rw-r--r-- | src/SemanticScuttle/Service/bookmarkservice.php | 552 |
1 files changed, 552 insertions, 0 deletions
diff --git a/src/SemanticScuttle/Service/bookmarkservice.php b/src/SemanticScuttle/Service/bookmarkservice.php new file mode 100644 index 0000000..f119593 --- /dev/null +++ b/src/SemanticScuttle/Service/bookmarkservice.php @@ -0,0 +1,552 @@ +<?php +class BookmarkService { + var $db; + var $tablename; + + function & getInstance(& $db) { + static $instance; + if (!isset ($instance)) + $instance = & new BookmarkService($db); + return $instance; + } + + function BookmarkService(& $db) { + $this->db = & $db; + $this->tablename = $GLOBALS['tableprefix'] .'bookmarks'; + } + + function _getbookmark($fieldname, $value, $all = false) { + if (!$all) { + $userservice = & ServiceFactory :: getServiceInstance('UserService'); + $sId = $userservice->getCurrentUserId(); + $range = ' AND uId = '. $sId; + } else { + $range = ''; + } + + $query = 'SELECT * FROM '. $this->getTableName() .' WHERE '. $fieldname .' = "'. $this->db->sql_escape($value) .'"'. $range; + + if (!($dbresult = & $this->db->sql_query_limit($query, 1, 0))) { + message_die(GENERAL_ERROR, 'Could not get bookmark', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + if ($row =& $this->db->sql_fetchrow($dbresult)) { + $output = $row; + } else { + $output = false; + } + $this->db->sql_freeresult($dbresult); + return $output; + } + + function & getBookmark($bid, $include_tags = false) { + if (!is_numeric($bid)) + return; + + $sql = 'SELECT * FROM '. $this->getTableName() .' WHERE bId = '. $this->db->sql_escape($bid); + + if (!($dbresult = & $this->db->sql_query($sql))) + message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db); + + if ($row = & $this->db->sql_fetchrow($dbresult)) { + if ($include_tags) { + $b2tservice = & ServiceFactory :: getServiceInstance('Bookmark2TagService'); + $row['tags'] = $b2tservice->getTagsForBookmark($bid); + } + $output = $row; + } else { + $output = false; + } + $this->db->sql_freeresult($dbresult); + return $output; + } + + function getBookmarkByAddress($address) { + $hash = md5($address); + return $this->getBookmarkByHash($hash); + } + + function getBookmarkByHash($hash) { + return $this->_getbookmark('bHash', $hash, true); + } + + /* Counts bookmarks for a user. $range = {'public', 'shared', 'private', 'all'}*/ + function countBookmarks($uId, $range = 'public') { + $sql = 'SELECT COUNT(*) FROM '. $GLOBALS['tableprefix'] .'bookmarks'; + $sql.= ' WHERE uId = '.$uId; + switch ($range) { + case 'all': + //no constraints + break; + case 'private': + $sql.= ' AND bStatus = 2'; + break; + case 'shared': + $sql.= ' AND bStatus = 1'; + break; + case 'public': + default: + $sql.= ' AND bStatus = 0'; + break; + } + + if (!($dbresult = & $this->db->sql_query($sql))) { + message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db); + } + return $this->db->sql_fetchfield(0, 0); + } + + /** + * Check if a bookmark may be edited by the current user + * + * @param integer|array $bookmark Bookmark uId or bookmark array + * + * @return boolean True if allowed + */ + function editAllowed($bookmark) + { + if (!is_numeric($bookmark) && (!is_array($bookmark) + || !is_numeric($bookmark['bId'])) + ) { + return false; + } + + if (!is_array($bookmark) + && !($bookmark = $this->getBookmark($bookmark)) + ) { + return false; + } + + $userservice = & ServiceFactory::getServiceInstance('UserService'); + $user = $userservice->getCurrentUser(); + + //user has to be either admin, or owner + if ($GLOBALS['adminsCanModifyBookmarksFromOtherUsers'] + && $userservice->isAdmin($user) + ) { + return true; + } else { + return ($bookmark['uId'] == $user['uId']); + } + } + + function bookmarkExists($address = false, $uid = NULL) { + if (!$address) { + return; + } + + $address = $this->normalize($address); + + $crit = array ('bHash' => md5($address)); + if (isset ($uid)) { + $crit['uId'] = $uid; + } + + $sql = 'SELECT COUNT(*) FROM '. $GLOBALS['tableprefix'] .'bookmarks WHERE '. $this->db->sql_build_array('SELECT', $crit); + if (!($dbresult = & $this->db->sql_query($sql))) { + message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db); + } + if($this->db->sql_fetchfield(0, 0) > 0) { + $output = true; + } else { + $output = false; + } + $this->db->sql_freeresult($dbresult); + return $output; + } + + // Adds a bookmark to the database. + // Note that date is expected to be a string that's interpretable by strtotime(). + function addBookmark($address, $title, $description, $privateNote, $status, $categories, $date = NULL, $fromApi = false, $fromImport = false, $sId = -1) { + if($sId == -1) { + $userservice = & ServiceFactory :: getServiceInstance('UserService'); + $sId = $userservice->getCurrentUserId(); + } + + $address = $this->normalize($address); + + // Get the client's IP address and the date; note that the date is in GMT. + if (getenv('HTTP_CLIENT_IP')) + $ip = getenv('HTTP_CLIENT_IP'); + else + if (getenv('REMOTE_ADDR')) + $ip = getenv('REMOTE_ADDR'); + else + $ip = getenv('HTTP_X_FORWARDED_FOR'); + + // Note that if date is NULL, then it's added with a date and time of now, and if it's present, + // it's expected to be a string that's interpretable by strtotime(). + if (is_null($date) || $date == '') + $time = time(); + else + $time = strtotime($date); + $datetime = gmdate('Y-m-d H:i:s', $time); + + // Set up the SQL insert statement and execute it. + $values = array('uId' => intval($sId), 'bIp' => $ip, 'bDatetime' => $datetime, 'bModified' => $datetime, 'bTitle' => $title, 'bAddress' => $address, 'bDescription' => $description, 'bPrivateNote' => $privateNote, 'bStatus' => intval($status), 'bHash' => md5($address)); + $sql = 'INSERT INTO '. $this->getTableName() .' '. $this->db->sql_build_array('INSERT', $values); + $this->db->sql_transaction('begin'); + if (!($dbresult = & $this->db->sql_query($sql))) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not insert bookmark', '', __LINE__, __FILE__, $sql, $this->db); + return false; + } + // Get the resultant row ID for the bookmark. + $bId = $this->db->sql_nextid($dbresult); + if (!isset($bId) || !is_int($bId)) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not insert bookmark', '', __LINE__, __FILE__, $sql, $this->db); + return false; + } + + $uriparts = explode('.', $address); + $extension = end($uriparts); + unset($uriparts); + + $b2tservice = & ServiceFactory :: getServiceInstance('Bookmark2TagService'); + if (!$b2tservice->attachTags($bId, $categories, $fromApi, $extension, false, $fromImport)) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not insert bookmark', '', __LINE__, __FILE__, $sql, $this->db); + return false; + } + $this->db->sql_transaction('commit'); + // Everything worked out, so return the new bookmark's bId. + return $bId; + } + + function updateBookmark($bId, $address, $title, $description, $privateNote, $status, $categories, $date = NULL, $fromApi = false) { + if (!is_numeric($bId)) + return false; + + // Get the client's IP address and the date; note that the date is in GMT. + if (getenv('HTTP_CLIENT_IP')) + $ip = getenv('HTTP_CLIENT_IP'); + else + if (getenv('REMOTE_ADDR')) + $ip = getenv('REMOTE_ADDR'); + else + $ip = getenv('HTTP_X_FORWARDED_FOR'); + + $moddatetime = gmdate('Y-m-d H:i:s', time()); + + $address = $this->normalize($address); + + //check if a new address ($address) doesn't already exist for another bookmark from the same user + $bookmark = $this->getBookmark($bId); + if($bookmark['bAddress'] != $address && $this->bookmarkExists($address, $bookmark['uId'])) { + message_die(GENERAL_ERROR, 'Could not update bookmark (URL already existing = '.$address.')', '', __LINE__, __FILE__); + return false; + } + + // Set up the SQL update statement and execute it. + $updates = array('bModified' => $moddatetime, 'bTitle' => $title, 'bAddress' => $address, 'bDescription' => $description, 'bPrivateNote' => $privateNote, 'bStatus' => $status, 'bHash' => md5($address)); + + if (!is_null($date)) { + $datetime = gmdate('Y-m-d H:i:s', strtotime($date)); + $updates[] = array('bDateTime' => $datetime); + } + + $sql = 'UPDATE '. $GLOBALS['tableprefix'] .'bookmarks SET '. $this->db->sql_build_array('UPDATE', $updates) .' WHERE bId = '. intval($bId); + $this->db->sql_transaction('begin'); + + if (!($dbresult = & $this->db->sql_query($sql))) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not update bookmark', '', __LINE__, __FILE__, $sql, $this->db); + return false; + } + + $uriparts = explode('.', $address); + $extension = end($uriparts); + unset($uriparts); + + $b2tservice = & ServiceFactory :: getServiceInstance('Bookmark2TagService'); + if (!$b2tservice->attachTags($bId, $categories, $fromApi, $extension)) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not update bookmark', '', __LINE__, __FILE__, $sql, $this->db); + return false; + } + + $this->db->sql_transaction('commit'); + // Everything worked out, so return true. + return true; + } + + function & getBookmarks($start = 0, $perpage = NULL, $user = NULL, $tags = NULL, $terms = NULL, $sortOrder = NULL, $watched = NULL, $startdate = NULL, $enddate = NULL, $hash = NULL) { + // Only get the bookmarks that are visible to the current user. Our rules: + // - if the $user is NULL, that means get bookmarks from ALL users, so we need to make + // sure to check the logged-in user's watchlist and get the contacts-only bookmarks from + // those users. If the user isn't logged-in, just get the public bookmarks. + // - if the $user is set and isn't the logged-in user, then get that user's bookmarks, and + // if that user is on the logged-in user's watchlist, get the public AND contacts-only + // bookmarks; otherwise, just get the public bookmarks. + // - if the $user is set and IS the logged-in user, then get all bookmarks. + + $userservice =& ServiceFactory::getServiceInstance('UserService'); + $b2tservice =& ServiceFactory::getServiceInstance('Bookmark2TagService'); + $tag2tagservice =& ServiceFactory::getServiceInstance('Tag2TagService'); + $sId = $userservice->getCurrentUserId(); + + if ($userservice->isLoggedOn()) { + // All public bookmarks, user's own bookmarks and any shared with user + $privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')'; + $watchnames = $userservice->getWatchNames($sId, true); + foreach($watchnames as $watchuser) { + $privacy .= ' OR (U.username = "'. $watchuser .'" AND B.bStatus = 1)'; + } + $privacy .= ')'; + } else { + // Just public bookmarks + $privacy = ' AND B.bStatus = 0'; + } + + // Set up the tags, if need be. + if (!is_array($tags) && !is_null($tags)) { + $tags = explode('+', trim($tags)); + } + + $tagcount = count($tags); + for ($i = 0; $i < $tagcount; $i ++) { + $tags[$i] = trim($tags[$i]); + } + + // Set up the SQL query. + $query_1 = 'SELECT DISTINCT '; + if (SQL_LAYER == 'mysql4') { + $query_1 .= 'SQL_CALC_FOUND_ROWS '; + } + $query_1 .= 'B.*, U.'. $userservice->getFieldName('username'); + + $query_2 = ' FROM '. $userservice->getTableName() .' AS U, '. $this->getTableName() .' AS B'; + + $query_3 = ' WHERE B.uId = U.'. $userservice->getFieldName('primary') . $privacy; + if (is_null($watched)) { + if (!is_null($user)) { + $query_3 .= ' AND B.uId = '. $user; + } + } else { + $arrWatch = $userservice->getWatchlist($user); + if (count($arrWatch) > 0) { + $query_3_1 = ''; + foreach($arrWatch as $row) { + $query_3_1 .= 'B.uId = '. intval($row) .' OR '; + } + $query_3_1 = substr($query_3_1, 0, -3); + } else { + $query_3_1 = 'B.uId = -1'; + } + $query_3 .= ' AND ('. $query_3_1 .') AND B.bStatus IN (0, 1)'; + } + + $query_5 = ''; + if($hash == null) { + $query_5.= ' GROUP BY B.bHash'; + } + + switch($sortOrder) { + case 'date_asc': + $query_5.= ' ORDER BY B.bModified ASC '; + break; + case 'title_desc': + $query_5.= ' ORDER BY B.bTitle DESC '; + break; + case 'title_asc': + $query_5.= ' ORDER BY B.bTitle ASC '; + break; + case 'url_desc': + $query_5.= ' ORDER BY B.bAddress DESC '; + break; + case 'url_asc': + $query_5.= ' ORDER BY B.bAddress ASC '; + break; + default: + $query_5.= ' ORDER BY B.bModified DESC '; + } + + // Handle the parts of the query that depend on any tags that are present. + $query_4 = ''; + for ($i = 0; $i < $tagcount; $i ++) { + $query_2 .= ', '. $b2tservice->getTableName() .' AS T'. $i; + $query_4 .= ' AND ('; + + $allLinkedTags = $tag2tagservice->getAllLinkedTags($this->db->sql_escape($tags[$i]), '>', $user); + + while (is_array($allLinkedTags) && count($allLinkedTags)>0) { + $query_4 .= ' T'. $i .'.tag = "'. array_pop($allLinkedTags) .'"'; + $query_4 .= ' OR'; + } + + $query_4 .= ' T'. $i .'.tag = "'. $this->db->sql_escape($tags[$i]) .'"'; + + $query_4 .= ') AND T'. $i .'.bId = B.bId'; + //die($query_4); + } + + // Search terms + if ($terms) { + // Multiple search terms okay + $aTerms = explode(' ', $terms); + $aTerms = array_map('trim', $aTerms); + + // Search terms in tags as well when none given + if (!count($tags)) { + $query_2 .= ' LEFT JOIN '. $b2tservice->getTableName() .' AS T ON B.bId = T.bId'; + $dotags = true; + } else { + $dotags = false; + } + + $query_4 = ''; + for ($i = 0; $i < count($aTerms); $i++) { + $query_4 .= ' AND (B.bTitle LIKE "%'. $this->db->sql_escape($aTerms[$i]) .'%"'; + $query_4 .= ' OR B.bDescription LIKE "%'. $this->db->sql_escape($aTerms[$i]) .'%"'; + $query_4 .= ' OR B.bPrivateNote LIKE "'. $this->db->sql_escape($aTerms[$i]) .'%"'; //warning : search in private notes of everybody but private notes won't appear if not allowed. + $query_4 .= ' OR U.username = "'. $this->db->sql_escape($aTerms[$i]) .'"'; //exact match for username + if ($dotags) { + $query_4 .= ' OR T.tag LIKE "'. $this->db->sql_escape($aTerms[$i]) .'%"'; + } + $query_4 .= ')'; + } + } + + // Start and end dates + if ($startdate) { + $query_4 .= ' AND B.bDatetime > "'. $startdate .'"'; + } + if ($enddate) { + $query_4 .= ' AND B.bDatetime < "'. $enddate .'"'; + } + + // Hash + if ($hash) { + $query_4 .= ' AND B.bHash = "'. $hash .'"'; + } + $query = $query_1 . $query_2 . $query_3 . $query_4 . $query_5; + + if (!($dbresult = & $this->db->sql_query_limit($query, intval($perpage), intval($start)))) { + message_die(GENERAL_ERROR, 'Could not get bookmarks', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + if (SQL_LAYER == 'mysql4') { + $totalquery = 'SELECT FOUND_ROWS() AS total'; + } else { + if ($hash) { + $totalquery = 'SELECT COUNT(*) AS total'. $query_2 . $query_3 . $query_4; + } else { + $totalquery = 'SELECT COUNT(DISTINCT bAddress) AS total'. $query_2 . $query_3 . $query_4; + } + } + + if (!($totalresult = & $this->db->sql_query($totalquery)) || (!($row = & $this->db->sql_fetchrow($totalresult)))) { + message_die(GENERAL_ERROR, 'Could not get total bookmarks', '', __LINE__, __FILE__, $totalquery, $this->db); + return false; + } + + $total = $row['total']; + $this->db->sql_freeresult($totalresult); + + $bookmarks = array(); + while ($row = & $this->db->sql_fetchrow($dbresult)) { + $row['tags'] = $b2tservice->getTagsForBookmark(intval($row['bId'])); + $bookmarks[] = $row; + } + + $this->db->sql_freeresult($dbresult); + $output = array ('bookmarks' => $bookmarks, 'total' => $total); + return $output; + } + + function deleteBookmark($bookmarkid) { + $query = 'DELETE FROM '. $GLOBALS['tableprefix'] .'bookmarks WHERE bId = '. intval($bookmarkid); + $this->db->sql_transaction('begin'); + if (!($dbresult = & $this->db->sql_query($query))) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + + + $query = 'DELETE FROM '. $GLOBALS['tableprefix'] .'bookmarks2tags WHERE bId = '. intval($bookmarkid); + $this->db->sql_transaction('begin'); + if (!($dbresult = & $this->db->sql_query($query))) { + $this->db->sql_transaction('rollback'); + message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db); + return false; + } + + $this->db->sql_transaction('commit'); + return true; + } + + function deleteBookmarksForUser($uId) {
+ $query = 'DELETE FROM '. $GLOBALS['tableprefix'] .'bookmarks WHERE uId = '. intval($uId);
+
+ if (!($dbresult = & $this->db->sql_query($query))) {
+ message_die(GENERAL_ERROR, 'Could not delete bookmarks', '', __LINE__, __FILE__, $query, $this->db);
+ return false;
+ }
+
+ return true;
+ } + + function countOthers($address) { + if (!$address) { + return false; + } + + $userservice = & ServiceFactory :: getServiceInstance('UserService'); + $sId = $userservice->getCurrentUserId(); + + if ($userservice->isLoggedOn()) { + // All public bookmarks, user's own bookmarks and any shared with user + $privacy = ' AND ((B.bStatus = 0) OR (B.uId = '. $sId .')'; + $watchnames = $userservice->getWatchNames($sId, true); + foreach($watchnames as $watchuser) { + $privacy .= ' OR (U.username = "'. $watchuser .'" AND B.bStatus = 1)'; + } + $privacy .= ')'; + } else { + // Just public bookmarks + $privacy = ' AND B.bStatus = 0'; + } + + $sql = 'SELECT COUNT(*) FROM '. $userservice->getTableName() .' AS U, '. $GLOBALS['tableprefix'] .'bookmarks AS B WHERE U.'. $userservice->getFieldName('primary') .' = B.uId AND B.bHash = "'. md5($address) .'"'. $privacy; + if (!($dbresult = & $this->db->sql_query($sql))) { + message_die(GENERAL_ERROR, 'Could not get vars', '', __LINE__, __FILE__, $sql, $this->db); + } + + $output = $this->db->sql_fetchfield(0, 0) - 1; + $this->db->sql_freeresult($dbresult); + return $output; + } + + function normalize($address) { + // If bookmark address doesn't contain ":", add "http://" to the start as a default protocol + if (strpos($address, ':') === false) { + $address = 'http://'. $address; + } + + // Delete final / + if (substr($address, -1) == '/') { + $address = substr($address, 0, count($address)-2); + } + + return $address; + } + + function deleteAll() { + $query = 'TRUNCATE TABLE `'. $this->getTableName() .'`'; + $this->db->sql_query($query); + } + + // Properties + function getTableName() { return $this->tablename; } + function setTableName($value) { $this->tablename = $value; } + +} + + + +?> |