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SemanticScuttle/services/bookmarkservice.php
cweiske dc4f39368c explain bookmarks = 0 problem and remove die() 
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@357 b3834d28-1941-0410-a4f8-b48e95affb8f
2009-09-20 12:23:46 +00:00

537 lines
18 KiB
PHP
Raw Blame History

<?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 $this->db->sql_fetchfield(0, 0);
}
function editAllowed($bookmark) {
if (!is_numeric($bookmark) && (!is_array($bookmark) || !is_numeric($bookmark['bId'])))
return false;
if (!is_array($bookmark))
if (!($bookmark = $this->getBookmark($bookmark)))
return false;
$userservice = & ServiceFactory :: getServiceInstance('UserService');
$userid = $userservice->getCurrentUserId();
if(!is_numeric($userid))
return false; // useful for few servers configuration (see brunaud bugs)
if ($GLOBALS['adminsCanModifyBookmarksFromOtherUsers'] && $userservice->isAdmin($userid) && !$userservice->isAdmin($bookmark['uId']))
return true;
else
return ($bookmark['uId'] == $userid);
}
function bookmarkExists($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; }
}
?>
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