Add database wrapper class and new connection method

Uses the Singleton pattern to ensure all queries use the same
database connection that is released upon script completion.

All database connections should now be called with DB::connect() and
not db_connect().

Signed-off-by: canyonknight <canyonknight@gmail.com>
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>

10 files changed, 112 insertions, 102 deletions

diff --git a/web/html/account.php b/web/html/account.php
index 2133734..7cd0263 100644
--- a/web/html/account.php
+++ b/web/html/account.php
@@ -20,7 +20,7 @@ $action = in_request("Action");
 if (isset($_COOKIE["AURSID"])) {
 	# visitor is logged in
 	#
-	$dbh = db_connect();
+	$dbh = DB::connect();
 	$atype = account_from_sid($_COOKIE["AURSID"]);
 
 	if ($action == "SearchAccounts") {
diff --git a/web/html/home.php b/web/html/home.php
index 0b51d55..a10ebf0 100644
--- a/web/html/home.php
+++ b/web/html/home.php
@@ -10,7 +10,7 @@ include_once('stats.inc.php');
 
 html_header( __("Home") );
 
-$dbh = db_connect();
+$dbh = DB::connect();
 
 ?>
 
diff --git a/web/html/logout.php b/web/html/logout.php
index 3d059e7..2d8bebc 100644
--- a/web/html/logout.php
+++ b/web/html/logout.php
@@ -11,7 +11,7 @@ include_once("acctfuncs.inc.php");         # access AUR common functions
 #
 if (isset($_COOKIE["AURSID"])) {
 	if (!isset($dbh)) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	delete_session_id($_COOKIE["AURSID"], $dbh);
 	# setting expiration to 1 means '1 second after midnight January 1, 1970'
diff --git a/web/html/pkgsubmit.php b/web/html/pkgsubmit.php
index 5dd58af..78fceac 100644
--- a/web/html/pkgsubmit.php
+++ b/web/html/pkgsubmit.php
@@ -356,7 +356,7 @@ if ($uid):
 
 		# Update the backend database
 		if (!$error) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 			begin_atomic_commit($dbh);
 
 			$pdata = pkgdetails_by_pkgname($new_pkgbuild['pkgname'], $dbh);
diff --git a/web/lib/DB.class.php b/web/lib/DB.class.php
new file mode 100644
index 0000000..0975989
--- /dev/null
+++ b/web/lib/DB.class.php
@@ -0,0 +1,28 @@
+<?php
+
+class DB {
+
+	/**
+	 * A database object
+	 */
+	private static $dbh = null;
+
+	/**
+	 * Return an already existing database object or newly instantiated object
+	 *
+	 * @return \PDO A database connection using PDO
+	 */
+	public static function connect() {
+		if (self::$dbh === null) {
+			try {
+				self::$dbh = new PDO(AUR_db_DSN_prefix . ":" . AUR_db_host
+					. ";dbname=" . AUR_db_name, AUR_db_user, AUR_db_pass);
+				self::$dbh->exec("SET NAMES 'utf8' COLLATE 'utf8_general_ci';");
+			} catch (PDOException $e) {
+				die('Error - Could not connect to AUR database');
+			}
+		}
+
+		return self::$dbh;
+	}
+}
diff --git a/web/lib/acctfuncs.inc.php b/web/lib/acctfuncs.inc.php
index 3759c63..1e25f62 100644
--- a/web/lib/acctfuncs.inc.php
+++ b/web/lib/acctfuncs.inc.php
@@ -95,7 +95,7 @@ function process_account_form($UTYPE,$TYPE,$A,$U="",$T="",$S="",$E="",
 	global $SUPPORTED_LANGS;
 
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	if(isset($_COOKIE['AURSID'])) {
@@ -301,7 +301,7 @@ function search_results_page($UTYPE,$O=0,$SB="",$U="",$T="",
 	$search_vars = array();
 
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT Users.*, AccountTypes.AccountType ";
@@ -367,7 +367,7 @@ function search_results_page($UTYPE,$O=0,$SB="",$U="",$T="",
 	$q.= "LIMIT " . $HITS_PER_PAGE . " OFFSET " . $OFFSET;
 
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$result = $dbh->query($q);
@@ -398,7 +398,7 @@ function try_login($dbh=NULL) {
 
 	if ( isset($_REQUEST['user']) || isset($_REQUEST['passwd']) ) {
 		if (!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$userID = valid_user($_REQUEST['user'], $dbh);
 
@@ -522,7 +522,7 @@ function valid_user($user, $dbh=NULL) {
 	/*	if ( $user = valid_username($user) ) { */
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	if ( $user ) {
@@ -549,7 +549,7 @@ function valid_user($user, $dbh=NULL) {
  */
 function open_user_proposals($user, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT * FROM TU_VoteInfo WHERE User = " . $dbh->quote($user) . " ";
 	$q.= "AND End > UNIX_TIMESTAMP()";
@@ -575,7 +575,7 @@ function open_user_proposals($user, $dbh=NULL) {
  */
 function add_tu_proposal($agenda, $user, $votelength, $submitteruid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "INSERT INTO TU_VoteInfo (Agenda, User, Submitted, End, SubmitterID) VALUES ";
@@ -596,7 +596,7 @@ function add_tu_proposal($agenda, $user, $votelength, $submitteruid, $dbh=NULL)
  */
 function create_resetkey($resetkey, $uid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "UPDATE Users ";
 	$q.= "SET ResetKey = '" . $resetkey . "' ";
@@ -617,7 +617,7 @@ function create_resetkey($resetkey, $uid, $dbh=NULL) {
  */
 function password_reset($hash, $salt, $resetkey, $email, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "UPDATE Users ";
 	$q.= "SET Passwd = '$hash', ";
@@ -662,7 +662,7 @@ function good_passwd($passwd) {
  */
 function valid_passwd($userID, $passwd, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	if ( strlen($passwd) > 0 ) {
 		# get salt for this user
@@ -724,7 +724,7 @@ function valid_pgp_fingerprint($fingerprint) {
  */
 function user_suspended($id, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	if (!$id) {
 		return false;
@@ -750,7 +750,7 @@ function user_suspended($id, $dbh=NULL) {
  */
 function user_delete($id, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "DELETE FROM Users WHERE ID = " . $id;
 	$dbh->query($q);
@@ -767,7 +767,7 @@ function user_delete($id, $dbh=NULL) {
  */
 function user_is_privileged($id, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT AccountTypeID FROM Users WHERE ID = " . $id;
 	$result = $dbh->query($q);
@@ -791,7 +791,7 @@ function user_is_privileged($id, $dbh=NULL) {
  */
 function delete_session_id($sid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "DELETE FROM Sessions WHERE SessionID = " . $dbh->quote($sid);
@@ -808,7 +808,7 @@ function delete_session_id($sid, $dbh=NULL) {
  */
 function delete_user_sessions($uid, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "DELETE FROM Sessions WHERE UsersID = " . intval($uid);
@@ -827,7 +827,7 @@ function clear_expired_sessions($dbh=NULL) {
 	global $LOGIN_TIMEOUT;
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "DELETE FROM Sessions WHERE LastUpdateTS < (UNIX_TIMESTAMP() - $LOGIN_TIMEOUT)";
@@ -847,7 +847,7 @@ function clear_expired_sessions($dbh=NULL) {
  */
 function account_details($uid, $username, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Users.*, AccountTypes.AccountType ";
 	$q.= "FROM Users, AccountTypes ";
@@ -877,7 +877,7 @@ function account_details($uid, $username, $dbh=NULL) {
  */
 function tu_voted($voteid, $uid, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT COUNT(*) FROM TU_Votes ";
@@ -901,7 +901,7 @@ function tu_voted($voteid, $uid, $dbh=NULL) {
  */
 function current_proposal_list($order, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM TU_VoteInfo WHERE End > " . time() . " ORDER BY Submitted " . $order;
@@ -926,7 +926,7 @@ function current_proposal_list($order, $dbh=NULL) {
  */
 function past_proposal_list($order, $lim, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM TU_VoteInfo WHERE End < " . time() . " ORDER BY Submitted " . $order . $lim;
@@ -949,7 +949,7 @@ function past_proposal_list($order, $lim, $dbh=NULL) {
  */
 function proposal_count($dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT COUNT(*) FROM TU_VoteInfo";
@@ -969,7 +969,7 @@ function proposal_count($dbh=NULL) {
  */
 function vote_details($voteid, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM TU_VoteInfo ";
@@ -991,7 +991,7 @@ function vote_details($voteid, $dbh=NULL) {
  */
 function voter_list($voteid, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$whovoted = array();
@@ -1024,7 +1024,7 @@ function voter_list($voteid, $dbh=NULL) {
  */
 function cast_proposal_vote($voteid, $uid, $vote, $newtotal, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "UPDATE TU_VoteInfo SET " . $vote . " = (" . $newtotal . ") WHERE ID = " . $voteid;
diff --git a/web/lib/aur.inc.php b/web/lib/aur.inc.php
index d8c5cb4..9a84ec7 100644
--- a/web/lib/aur.inc.php
+++ b/web/lib/aur.inc.php
@@ -11,6 +11,7 @@ include_once('translator.inc.php');
 set_lang();
 
 include_once("config.inc.php");
+include_once("DB.class.php");
 include_once("routing.inc.php");
 include_once("version.inc.php");
 include_once("acctfuncs.inc.php");
@@ -38,7 +39,7 @@ function check_sid($dbh=NULL) {
 		# the visitor is logged in, try and update the session
 		#
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT LastUpdateTS, UNIX_TIMESTAMP() FROM Sessions ";
 		$q.= "WHERE SessionID = " . $dbh->quote($_COOKIE["AURSID"]);
@@ -145,7 +146,7 @@ function username_from_id($id="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Username FROM Users WHERE ID = " . $dbh->quote($id);
 	$result = $dbh->query($q);
@@ -170,7 +171,7 @@ function username_from_sid($sid="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Username ";
 	$q.= "FROM Users, Sessions ";
@@ -198,7 +199,7 @@ function email_from_sid($sid="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Email ";
 	$q.= "FROM Users, Sessions ";
@@ -226,7 +227,7 @@ function account_from_sid($sid="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT AccountType ";
 	$q.= "FROM Users, AccountTypes, Sessions ";
@@ -255,7 +256,7 @@ function uid_from_sid($sid="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Users.ID ";
 	$q.= "FROM Users, Sessions ";
@@ -271,24 +272,6 @@ function uid_from_sid($sid="", $dbh=NULL) {
 }
 
 /**
- * Establish a connection with a database using PDO
- *
- * @return \PDO A database connection
- */
-function db_connect() {
-	try {
-		$dbh = new PDO(AUR_db_DSN_prefix . ":" . AUR_db_host . ";dbname=" . AUR_db_name, AUR_db_user, AUR_db_pass);
-	}
-	catch (PDOException $e) {
-		echo "Error - Could not connect to AUR database: " . $e->getMessage();
-	}
-
-	$dbh->exec("SET NAMES 'utf8' COLLATE 'utf8_general_ci';");
-
-	return $dbh;
-}
-
-/**
  * Common AUR header displayed on all pages
  *
  * @global string $LANG Language selected by the visitor
@@ -331,7 +314,7 @@ function html_footer($ver="") {
 function can_submit_pkg($name="", $sid="", $dbh=NULL) {
 	if (!$name || !$sid) {return 0;}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT MaintainerUID ";
 	$q.= "FROM Packages WHERE Name = " . $dbh->quote($name);
@@ -390,7 +373,7 @@ function uid_from_username($username="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT ID FROM Users WHERE Username = " . $dbh->quote($username);
 	$result = $dbh->query($q);
@@ -415,7 +398,7 @@ function uid_from_email($email="", $dbh=NULL) {
 		return "";
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT ID FROM Users WHERE Email = " . $dbh->quote($email);
 	$result = $dbh->query($q);
@@ -481,7 +464,7 @@ function mkurl($append) {
  */
 function get_salt($user_id, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT Salt FROM Users WHERE ID = " . $user_id;
 	$result = $dbh->query($q);
@@ -501,7 +484,7 @@ function get_salt($user_id, $dbh=NULL) {
  */
 function save_salt($user_id, $passwd, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$salt = generate_salt();
 	$hash = salted_hash($passwd, $salt);
@@ -571,7 +554,7 @@ function parse_comment($comment) {
  */
 function begin_atomic_commit($dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$dbh->beginTransaction();
 }
@@ -583,7 +566,7 @@ function begin_atomic_commit($dbh=NULL) {
  */
 function end_atomic_commit($dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$dbh->commit();
 }
@@ -598,7 +581,7 @@ function end_atomic_commit($dbh=NULL) {
  */
 function last_insert_id($dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	return $dbh->lastInsertId();
 }
@@ -613,7 +596,7 @@ function last_insert_id($dbh=NULL) {
  */
 function latest_pkgs($numpkgs, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM Packages ";
diff --git a/web/lib/aurjson.class.php b/web/lib/aurjson.class.php
index 616b783..b905275 100644
--- a/web/lib/aurjson.class.php
+++ b/web/lib/aurjson.class.php
@@ -52,7 +52,7 @@ class AurJSON {
         // do the routing
         if ( in_array($http_data['type'], self::$exposed_methods) ) {
             // set up db connection.
-            $this->dbh = db_connect();
+            $this->dbh = DB::connect();
 
             // ugh. this works. I hate you php.
             $json = call_user_func(array(&$this, $http_data['type']),
diff --git a/web/lib/pkgfuncs.inc.php b/web/lib/pkgfuncs.inc.php
index 568ca3d..b29acb3 100644
--- a/web/lib/pkgfuncs.inc.php
+++ b/web/lib/pkgfuncs.inc.php
@@ -20,7 +20,7 @@ function canDeleteComment($comment_id=0, $atype="", $uid=0, $dbh=NULL) {
 		return TRUE;
 	}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT COUNT(ID) AS CNT ";
 	$q.= "FROM PackageComments ";
@@ -89,7 +89,7 @@ function canSubmitBlacklisted($atype = "") {
 function pkgCategories($dbh=NULL) {
 	$cats = array();
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT * FROM PackageCategories WHERE ID != 1 ";
 	$q.= "ORDER BY Category ASC";
@@ -113,7 +113,7 @@ function pkgCategories($dbh=NULL) {
 function pkgid_from_name($name="", $dbh=NULL) {
 	if (!$name) {return NULL;}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT ID FROM Packages ";
 	$q.= "WHERE Name = " . $dbh->quote($name);
@@ -138,7 +138,7 @@ function package_dependencies($pkgid, $dbh=NULL) {
 	$pkgid = intval($pkgid);
 	if ($pkgid > 0) {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT pd.DepName, pd.DepCondition, p.ID FROM PackageDepends pd ";
 		$q.= "LEFT JOIN Packages p ON pd.DepName = p.Name ";
@@ -167,7 +167,7 @@ function package_required($name="", $dbh=NULL) {
 	$deps = array();
 	if ($name != "") {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT DISTINCT p.Name, PackageID FROM PackageDepends pd ";
 		$q.= "JOIN Packages p ON pd.PackageID = p.ID ";
@@ -192,13 +192,13 @@ function package_required($name="", $dbh=NULL) {
  */
 function package_comments_count($pkgid, $dbh=NULL) {
 	if (!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$pkgid = intval($pkgid);
 	if ($pkgid > 0) {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT COUNT(*) FROM PackageComments ";
 		$q.= "WHERE PackageID = " . $pkgid;
@@ -227,7 +227,7 @@ function package_comments($pkgid, $dbh=NULL) {
 	$pkgid = intval($pkgid);
 	if ($pkgid > 0) {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT PackageComments.ID, UserName, UsersID, Comments, CommentTS ";
 		$q.= "FROM PackageComments, Users ";
@@ -268,7 +268,7 @@ function add_package_comment($pkgid, $uid, $comment, $dbh=NULL) {
 	global $AUR_LOCATION;
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "INSERT INTO PackageComments ";
@@ -326,7 +326,7 @@ function package_sources($pkgid, $dbh=NULL) {
 	$pkgid = intval($pkgid);
 	if ($pkgid > 0) {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT Source FROM PackageSources ";
 		$q.= "WHERE PackageID = " . $pkgid;
@@ -354,7 +354,7 @@ function pkgvotes_from_sid($sid="", $dbh=NULL) {
 	$pkgs = array();
 	if (!$sid) {return $pkgs;}
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT PackageID ";
 	$q.= "FROM PackageVotes, Users, Sessions ";
@@ -383,7 +383,7 @@ function pkgname_from_id($pkgids, $dbh=NULL) {
 		$pkgids = sanitize_ids($pkgids);
 		$names = array();
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT Name FROM Packages WHERE ID IN (";
 		$q.= implode(",", $pkgids) . ")";
@@ -397,7 +397,7 @@ function pkgname_from_id($pkgids, $dbh=NULL) {
 	}
 	elseif ($pkgids > 0) {
 		if(!$dbh) {
-			$dbh = db_connect();
+			$dbh = DB::connect();
 		}
 		$q = "SELECT Name FROM Packages WHERE ID = " . $pkgids;
 		$result = $dbh->query($q);
@@ -421,7 +421,7 @@ function pkgname_from_id($pkgids, $dbh=NULL) {
  */
 function pkgname_is_blacklisted($name, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT COUNT(*) FROM PackageBlacklist ";
 	$q.= "WHERE Name = " . $dbh->quote($name);
@@ -441,7 +441,7 @@ function pkgname_is_blacklisted($name, $dbh=NULL) {
  **/
 function get_package_details($id=0, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT Packages.*,Category ";
@@ -482,7 +482,7 @@ function display_package_details($id=0, $row, $SID="", $dbh=NULL) {
 	global $USE_VIRTUAL_URLS;
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	if (isset($row['error'])) {
@@ -556,7 +556,7 @@ function display_package_details($id=0, $row, $SID="", $dbh=NULL) {
  */
 function pkg_search_page($SID="", $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	// get commonly used variables...
@@ -814,7 +814,7 @@ function pkg_flag($atype, $ids, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "UPDATE Packages SET";
@@ -868,7 +868,7 @@ function pkg_unflag($atype, $ids, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "UPDATE Packages SET ";
@@ -911,7 +911,7 @@ function pkg_delete ($atype, $ids, $mergepkgid, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	if ($mergepkgid) {
@@ -1013,7 +1013,7 @@ function pkg_adopt ($atype, $ids, $action=true, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$field = "MaintainerUID";
@@ -1073,7 +1073,7 @@ function pkg_vote ($atype, $ids, $action=true, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$my_votes = pkgvotes_from_sid($_COOKIE["AURSID"], $dbh);
 	$uid = uid_from_sid($_COOKIE["AURSID"], $dbh);
@@ -1143,7 +1143,7 @@ function pkg_vote ($atype, $ids, $action=true, $dbh=NULL) {
  */
 function getvotes($pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT UsersID,Username FROM PackageVotes ";
@@ -1175,7 +1175,7 @@ function getvotes($pkgid, $dbh=NULL) {
  */
 function user_voted($uid, $pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM PackageVotes WHERE UsersID = ". $dbh->quote($uid);
@@ -1201,7 +1201,7 @@ function user_voted($uid, $pkgid, $dbh=NULL) {
  */
 function user_notify($uid, $pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 
 	$q = "SELECT * FROM CommentNotify WHERE UserID = " . $dbh->quote($uid);
@@ -1236,7 +1236,7 @@ function pkg_notify ($atype, $ids, $action=true, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$uid = uid_from_sid($_COOKIE["AURSID"], $dbh);
 
@@ -1315,7 +1315,7 @@ function pkg_delete_comment($atype, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$uid = uid_from_sid($_COOKIE["AURSID"], $dbh);
 	if (canDeleteComment($comment_id, $atype, $uid, $dbh)) {
@@ -1349,7 +1349,7 @@ function pkg_change_category($pid, $atype, $dbh=NULL) {
 	}
 
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$catArray = pkgCategories($dbh);
 	if (!array_key_exists($category_id, $catArray)) {
@@ -1391,7 +1391,7 @@ function pkg_change_category($pid, $atype, $dbh=NULL) {
  */
 function pkgdetails_by_pkgname($pkgname, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "SELECT * FROM Packages WHERE Name = " . $dbh->quote($pkgname);
 	$result = $dbh->query($q);
@@ -1417,7 +1417,7 @@ function pkgdetails_by_pkgname($pkgname, $dbh=NULL) {
  */
 function new_pkgdetails($pkgname, $license, $pkgver, $category_id, $pkgdesc, $pkgurl, $uid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = sprintf("INSERT INTO Packages (Name, License, Version, CategoryID, Description, URL, SubmittedTS, ModifiedTS, SubmitterUID, MaintainerUID) VALUES (%s, %s, %s, %d, %s, %s, UNIX_TIMESTAMP(), UNIX_TIMESTAMP(), %d, %d)",
 	$dbh->quote($pkgname),
@@ -1448,7 +1448,7 @@ function new_pkgdetails($pkgname, $license, $pkgver, $category_id, $pkgdesc, $pk
  */
 function update_pkgdetails($pkgname, $license, $pkgver, $pkgdesc, $pkgurl, $uid, $pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	# This is an overwrite of an existing package
 	$q = sprintf("UPDATE Packages SET ModifiedTS = UNIX_TIMESTAMP(), Name = %s, Version = %s, License = %s, Description = %s, URL = %s, OutOfDateTS = NULL, MaintainerUID = %d WHERE ID = %d",
@@ -1475,7 +1475,7 @@ function update_pkgdetails($pkgname, $license, $pkgver, $pkgdesc, $pkgurl, $uid,
  */
 function add_pkg_dep($pkgid, $depname, $depcondition, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = sprintf("INSERT INTO PackageDepends (PackageID, DepName, DepCondition) VALUES (%d, %s, %s)",
 	$pkgid,
@@ -1496,7 +1496,7 @@ function add_pkg_dep($pkgid, $depname, $depcondition, $dbh=NULL) {
  */
 function add_pkg_src($pkgid, $pkgsrc, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "INSERT INTO PackageSources (PackageID, Source) VALUES (";
 	$q .= $pkgid . ", " . $dbh->quote($pkgsrc) . ")";
@@ -1515,7 +1515,7 @@ function add_pkg_src($pkgid, $pkgsrc, $dbh=NULL) {
  */
 function update_pkg_category($pkgid, $category_id, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = sprintf( "UPDATE Packages SET CategoryID = %d WHERE ID = %d",
 	$category_id,
@@ -1534,7 +1534,7 @@ function update_pkg_category($pkgid, $category_id, $dbh=NULL) {
  */
 function remove_pkg_deps($pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "DELETE FROM PackageDepends WHERE PackageID = " . $pkgid;
 
@@ -1551,7 +1551,7 @@ function remove_pkg_deps($pkgid, $dbh=NULL) {
  */
 function remove_pkg_sources($pkgid, $dbh=NULL) {
 	if(!$dbh) {
-		$dbh = db_connect();
+		$dbh = DB::connect();
 	}
 	$q = "DELETE FROM PackageSources WHERE PackageID = " . $pkgid;
 
diff --git a/web/lib/translator.inc.php b/web/lib/translator.inc.php
index 1477b17..67693e0 100644
--- a/web/lib/translator.inc.php
+++ b/web/lib/translator.inc.php
@@ -12,6 +12,7 @@ set_include_path(get_include_path() . PATH_SEPARATOR . '../lib' . PATH_SEPARATOR
 #	print __("This is a %smajor%s problem!", "<strong>", "</strong>");
 
 include_once('config.inc.php');
+include_once('DB.class.php');
 include_once('gettext.php');
 include_once('streams.php');
 
@@ -69,7 +70,7 @@ function __() {
 
 # set up the visitor's language
 #
-function set_lang($dbh=NULL) {
+function set_lang() {
 	global $LANG;
 	global $SUPPORTED_LANGS;
 	global $PERSISTENT_COOKIE_TIMEOUT;
@@ -90,9 +91,7 @@ function set_lang($dbh=NULL) {
 	} elseif (isset($_COOKIE["AURSID"])) {
 		# No language but a session; use default lang preference
 		#
-		if(!$dbh) {
-			$dbh = db_connect();
-		}
+		$dbh = DB::connect();
 		$q = "SELECT LangPreference FROM Users, Sessions ";
 		$q.= "WHERE Users.ID = Sessions.UsersID ";
 		$q.= "AND Sessions.SessionID = '";