import of scuttle 0.7.2

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@1 b3834d28-1941-0410-a4f8-b48e95affb8f

1 files changed, 416 insertions, 0 deletions

diff --git a/services/bookmarkservice.php b/services/bookmarkservice.php
new file mode 100644
index 0000000..afc7179
--- /dev/null
+++ b/services/bookmarkservice.php
@@ -0,0 +1,416 @@
+<?php
+class BookmarkService {
+    var $db;
+
+    function & getInstance(& $db) {
+        static $instance;
+        if (!isset ($instance))
+            $instance = & new BookmarkService($db);
+        return $instance;
+    }
+
+    function BookmarkService(& $db) {
+        $this->db = & $db;
+    }
+
+    function _getbookmark($fieldname, $value, $all = false) {
+        if (!$all) {
+            $userservice = & ServiceFactory :: getServiceInstance('UserService');
+            $sId = $userservice->getCurrentUserId();
+            $range = ' AND uId = '. $sId;
+        }
+
+        $query = 'SELECT * FROM '. $GLOBALS['tableprefix'] .'bookmarks 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)) {
+            return $row;
+        } else {
+            return false;
+        }
+    }
+
+    function & getBookmark($bid, $include_tags = false) {
+        if (!is_numeric($bid))
+            return;
+
+        $sql = 'SELECT * FROM '. $GLOBALS['tableprefix'] .'bookmarks 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) {
+                $tagservice = & ServiceFactory :: getServiceInstance('TagService');
+                $row['tags'] = $tagservice->getTagsForBookmark($bid);
+            }
+            return $row;
+        } else {
+            return false;
+        }
+    }
+
+    function getBookmarkByAddress($address) {
+        $hash = md5($address);
+        return $this->getBookmarkByHash($hash);
+    }
+
+    function getBookmarkByHash($hash) {
+        return $this->_getbookmark('bHash', $hash, true);
+    }
+
+    function editAllowed($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 = $userservice->getCurrentUserId();
+        if ($userservice->isAdmin($userid))
+            return true;
+        else
+            return ($bookmark['uId'] == $userid);
+    }
+
+    function bookmarkExists($address = false, $uid = NULL) {
+        if (!$address) {
+            return;
+        }
+
+        // If address doesn't contain ":", add "http://" as the default protocol
+        if (strpos($address, ':') === false) {
+            $address = 'http://'. $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, $this->db);
+        }
+        return ($this->db->sql_fetchfield(0, 0) > 0);
+    }
+
+    // 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, $status, $categories, $date = NULL, $fromApi = false, $fromImport = false) {
+        $userservice = & ServiceFactory :: getServiceInstance('UserService');
+        $sId = $userservice->getCurrentUserId();
+
+        // If bookmark address doesn't contain ":", add "http://" to the start as a default protocol
+        if (strpos($address, ':') === false) {
+            $address = 'http://'. $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))
+            $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' => $description, 'bStatus' => intval($status), 'bHash' => md5($address));
+        $sql = 'INSERT INTO '. $GLOBALS['tableprefix'] .'bookmarks '. $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);
+
+        $tagservice = & ServiceFactory :: getServiceInstance('TagService');
+        if (!$tagservice->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, $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());
+
+        // Set up the SQL update statement and execute it.
+        $updates = array('bModified' => $moddatetime, 'bTitle' => $title, 'bAddress' => $address, 'bDescription' => $description, '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);
+
+        $tagservice = & ServiceFactory :: getServiceInstance('TagService');
+        if (!$tagservice->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');
+        $tagservice =& ServiceFactory::getServiceInstance('TagService');
+        $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, '. $GLOBALS['tableprefix'] .'bookmarks 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($arrWatch) > 0) {
+                foreach($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 ('. $query_3_1 .') AND B.bStatus IN (0, 1)';
+        }
+
+        switch($sortOrder) {
+            case 'date_asc':
+                $query_5 = ' ORDER BY B.bDatetime 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.bDatetime 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 .= ', '. $GLOBALS['tableprefix'] .'tags AS T'. $i;
+            $query_4 .= ' AND T'. $i .'.tag = "'. $this->db->sql_escape($tags[$i]) .'" AND T'. $i .'.bId = B.bId';
+        }
+
+        // Search terms
+        if ($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 '. $GLOBALS['tableprefix'] .'tags 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[$i]) .'%"';
+                if ($dotags) {
+                    $query_4 .= ' OR T.tag = "'. $this->db->sql_escape($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 {
+            $totalquery = 'SELECT COUNT(*) 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'];
+
+        $bookmarks = array();
+        while ($row = & $this->db->sql_fetchrow($dbresult)) {
+            $row['tags'] = $tagservice->getTagsForBookmark(intval($row['bId']));
+            $bookmarks[] = $row;
+        }
+        return array ('bookmarks' => $bookmarks, 'total' => $total);
+    }
+
+    function deleteBookmark($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 '. $GLOBALS['tableprefix'] .'tags WHERE bId = '. intval($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;
+        }
+
+        $this->db->sql_transaction('commit');
+        return true;
+    }
+
+    function countOthers($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);
+        }
+        return $this->db->sql_fetchfield(0, 0) - 1;
+    }
+}
+?>