From 6508d0c5b766fe56e96741a61ab7a1ece4191f2d Mon Sep 17 00:00:00 2001
From: mcramer <m.cramer@pixcept.de>
Date: Fri, 17 May 2013 12:09:10 -0400
Subject: [PATCH] - Possible Fix for:  FS#2918 - multiserver - remote access db passwd not changed , when changed access from IP to % and vice versa 

---
 server/plugins-available/mysql_clientdb_plugin.inc.php |  187 ++++++++++++++++++++++++++++++++++++++++------
 1 files changed, 161 insertions(+), 26 deletions(-)

diff --git a/server/plugins-available/mysql_clientdb_plugin.inc.php b/server/plugins-available/mysql_clientdb_plugin.inc.php
index 98efd8c..393c3fb 100644
--- a/server/plugins-available/mysql_clientdb_plugin.inc.php
+++ b/server/plugins-available/mysql_clientdb_plugin.inc.php
@@ -88,9 +88,11 @@
       foreach($host_list as $db_host) {
           $db_host = trim($db_host);
           
+          $app->log($action . ' for user ' . $database_user . ' at host ' . $db_host, LOGLEVEL_DEBUG);
+          
           // check if entry is valid ip address
           $valid = true;
-		  if($db_host == '%') {
+		  if($db_host == '%' || $db_host == 'localhost') {
 		  	$valid = true;
 		  } elseif(preg_match("/^[0-9]{1,3}(\.)[0-9]{1,3}(\.)[0-9]{1,3}(\.)[0-9]{1,3}$/", $db_host)) {
               $groups = explode('.', $db_host);
@@ -106,6 +108,7 @@
           
           if($action == 'GRANT') {
               if(!$link->query("GRANT " . ($user_read_only ? "SELECT" : "ALL") . " ON ".$link->escape_string($database_name).".* TO '".$link->escape_string($database_user)."'@'$db_host' IDENTIFIED BY PASSWORD '".$link->escape_string($database_password)."';")) $success = false;
+              $app->log("GRANT " . ($user_read_only ? "SELECT" : "ALL") . " ON ".$link->escape_string($database_name).".* TO '".$link->escape_string($database_user)."'@'$db_host' IDENTIFIED BY PASSWORD '".$link->escape_string($database_password)."'; success? " . ($success ? 'yes' : 'no'), LOGLEVEL_DEBUG);
           } elseif($action == 'REVOKE') {
               if(!$link->query("REVOKE ALL PRIVILEGES ON ".$link->escape_string($database_name).".* FROM '".$link->escape_string($database_user)."'@'$db_host' IDENTIFIED BY PASSWORD '".$link->escape_string($database_password)."';")) $success = false;
           } elseif($action == 'DROP') {
@@ -119,6 +122,47 @@
       
       return $success;
   }
+  
+	function drop_or_revoke_user($database_id, $user_id, $host_list){
+		global $app;
+		
+		// set to all hosts if none given
+		if(trim($host_list) == '') $host_list = '%';
+		
+		$db_user_databases = $app->db->queryAllRecords("SELECT * FROM web_database WHERE (database_user_id = ".$user_id." OR database_ro_user_id = ".$user_id.") AND active = 'y' AND database_id != ".$database_id);
+		$db_user_host_list = array();
+		if(is_array($db_user_databases) && !empty($db_user_databases)){
+			foreach($db_user_databases as $db_user_database){
+				if($db_user_database['remote_access'] == 'y'){
+					if($db_user_database['remote_ips'] == ''){
+						$db_user_host_list[] = '%';
+					} else {
+						$tmp_remote_ips = explode(',', $db_user_database['remote_ips']);
+						if(is_array($tmp_remote_ips) && !empty($tmp_remote_ips)){
+							foreach($tmp_remote_ips as $tmp_remote_ip){
+								$tmp_remote_ip = trim($tmp_remote_ip);
+								if($tmp_remote_ip != '') $db_user_host_list[] = $tmp_remote_ip;
+							}
+						}
+						unset($tmp_remote_ips);
+					}
+				}
+				$db_user_host_list[] = 'localhost';
+			}
+		}
+		$host_list_arr = explode(',', $host_list);
+		//print_r($host_list_arr);
+		$drop_hosts = array_diff($host_list_arr, $db_user_host_list);
+		//print_r($drop_hosts);
+		$revoke_hosts = array_diff($host_list_arr, $drop_hosts);
+		//print_r($revoke_hosts);
+						
+		$drop_host_list = implode(',', $drop_hosts);
+		$revoke_host_list = implode(',', $revoke_hosts);
+		//echo $drop_host_list."\n";
+		//echo $revoke_host_list."\n";
+		return array('revoke_hosts' => $revoke_host_list, 'drop_hosts' => $drop_host_list);
+	}
 	
 	function db_insert($event_name,$data) {
 		global $app, $conf;
@@ -161,6 +205,7 @@
                 $host_list = '';
                 if($data['new']['remote_access'] == 'y') {
                     $host_list = $data['new']['remote_ips'];
+                    if($host_list == '') $host_list = '%';
                 }
                 if($host_list != '') $host_list .= ',';
                 $host_list .= 'localhost';
@@ -184,6 +229,9 @@
 	function db_update($event_name,$data) {
 		global $app, $conf;
 		
+		// skip processing if database was and is inactive
+		if($data['new']['active'] == 'n' && $data['old']['active'] == 'n') return;
+		
 		if($data['new']['type'] == 'mysql') {
 			if(!include(ISPC_LIB_PATH.'/mysql_clientdb.conf')) {
 				$app->log('Unable to open'.ISPC_LIB_PATH.'/mysql_clientdb.conf',LOGLEVEL_ERROR);
@@ -205,9 +253,19 @@
             $host_list = '';
             if($data['new']['remote_access'] == 'y') {
                 $host_list = $data['new']['remote_ips'];
+                if($host_list == '') $host_list = '%';
             }
             if($host_list != '') $host_list .= ',';
             $host_list .= 'localhost';
+			
+			// REVOKES and DROPS have to be done on old host list, not new host list
+			$old_host_list = '';
+            if($data['old']['remote_access'] == 'y') {
+                $old_host_list = $data['old']['remote_ips'];
+                if($old_host_list == '') $old_host_list = '%';
+            }
+            if($old_host_list != '') $old_host_list .= ',';
+            $old_host_list .= 'localhost';
             
             // Create the database user if database was disabled before
 			if($data['new']['active'] == 'y' && $data['old']['active'] == 'n') {
@@ -221,13 +279,36 @@
                 }
 			} else if($data['new']['active'] == 'n' && $data['old']['active'] == 'y') { // revoke database user, if inactive
                 if($db_user) {
-                    if($db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                    else $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $host_list, $link);
+                    if($db_user['database_user'] == 'root'){
+						$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                    } else {
+						// Find out users to drop and users to revoke
+						$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_user_id'], $old_host_list);
+						if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+						if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+						
+						
+						//$this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $old_host_list, $link);
+						//$this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $old_host_list, $link);
+					}
                 }
                 if($db_ro_user && $data['new']['database_user_id'] != $data['new']['database_ro_user_id']) {
-                    if($db_ro_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                    else $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $host_list, $link);
+                    if($db_ro_user['database_user'] == 'root'){
+						$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                    } else {
+						// Find out users to drop and users to revoke
+						$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_ro_user_id'], $old_host_list);
+						if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+						if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+						
+						//$this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $old_host_list, $link);
+						//$this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $old_host_list, $link);
+					}
                 }
+				// Database is not active, so stop processing here
+				$link->query('FLUSH PRIVILEGES;');
+				$link->close();
+				return;
 			}
             
             //* selected Users have changed
@@ -235,8 +316,17 @@
                 if($data['old']['database_user_id'] && $data['old']['database_user_id'] != $data['new']['database_ro_user_id']) {
                     $old_db_user = $app->db->queryOneRecord("SELECT `database_user`, `database_password` FROM `web_database_user` WHERE `database_user_id` = '" . intval($data['old']['database_user_id']) . "'");
                     if($old_db_user) {
-                        if($old_db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                        else $this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $host_list, $link);
+                        if($old_db_user['database_user'] == 'root'){
+							$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                        } else {
+							// Find out users to drop and users to revoke
+							$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['old']['database_user_id'], $old_host_list);
+							if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+							if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+						
+							//$this->process_host_list('DROP', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $old_host_list, $link);
+							//$this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $old_host_list, $link);
+						}
                     }
                 }
                 if($db_user) {
@@ -248,8 +338,17 @@
                 if($data['old']['database_ro_user_id'] && $data['old']['database_ro_user_id'] != $data['new']['database_user_id']) {
                     $old_db_user = $app->db->queryOneRecord("SELECT `database_user`, `database_password` FROM `web_database_user` WHERE `database_user_id` = '" . intval($data['old']['database_ro_user_id']) . "'");
                     if($old_db_user) {
-                        if($old_db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                        else $this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $host_list, $link);
+                        if($old_db_user['database_user'] == 'root'){
+							$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                        } else {
+							// Find out users to drop and users to revoke
+							$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['old']['database_user_id'], $old_host_list);
+							if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+							if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+							
+							//$this->process_host_list('DROP', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $old_host_list, $link);
+							//$this->process_host_list('REVOKE', $data['new']['database_name'], $old_db_user['database_user'], $old_db_user['database_password'], $old_host_list, $link);
+						}
                     }
                 }
                 if($db_ro_user && $data['new']['database_user_id'] != $data['new']['database_ro_user_id']) {
@@ -267,8 +366,11 @@
 				//* set new priveliges
 				if($data['new']['remote_access'] == 'y') { 		
                     if($db_user) {
-                        if($db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                        else $this->process_host_list('GRANT', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['new']['remote_ips'], $link);
+                        if($db_user['database_user'] == 'root'){
+							$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                        } else {
+							$this->process_host_list('GRANT', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['new']['remote_ips'], $link);
+						}
                     }
                     if($db_ro_user && $data['new']['database_user_id'] != $data['new']['database_ro_user_id']) {
                         if($db_ro_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
@@ -276,32 +378,64 @@
                     }
 				} else {
                     if($db_user) {
-                        if($db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                        else $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['new']['remote_ips'], $link);
+                        if($db_user['database_user'] == 'root'){
+							$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                        } else {
+							// Find out users to drop and users to revoke
+							$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_user_id'], $data['old']['remote_ips']);
+							if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+							if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+							
+							//$this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['old']['remote_ips'], $link);
+							//$this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['old']['remote_ips'], $link);
+						}
                     }
                     if($db_ro_user && $data['new']['database_user_id'] != $data['new']['database_ro_user_id']) {
-                        if($db_ro_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                        else $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['new']['remote_ips'], $link);
+                        if($db_ro_user['database_user'] == 'root'){
+							$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                        } else {
+							// Find out users to drop and users to revoke
+							$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_ro_user_id'], $data['old']['remote_ips']);
+							if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+							if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+							
+							//$this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['old']['remote_ips'], $link);
+							//$this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['old']['remote_ips'], $link);
+						}
                     }
 				}
 				$app->log('Changing MySQL remote access privileges for database: '.$data['new']['database_name'],LOGLEVEL_DEBUG);
 			} elseif($data['new']['remote_access'] == 'y' && $data['new']['remote_ips'] != $data['old']['remote_ips']) {
                 //* Change remote access list
                 if($db_user) {
-                    if($db_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                    else {
-                        $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['old']['remote_ips'], $link);
+                    if($db_user['database_user'] == 'root'){
+						$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                    } else {
+						// Find out users to drop and users to revoke
+						$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_user_id'], $data['old']['remote_ips']);
+						if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+						if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+							
+                        //$this->process_host_list('DROP', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['old']['remote_ips'], $link);
+						//$this->process_host_list('REVOKE', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['old']['remote_ips'], $link);
                         $this->process_host_list('GRANT', $data['new']['database_name'], $db_user['database_user'], $db_user['database_password'], $data['new']['remote_ips'], $link);
                     }
                 }
                 if($db_ro_user && $data['new']['database_user_id'] != $data['new']['database_ro_user_id']) {
-                    if($db_ro_user['database_user'] == 'root') $app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
-                    else {
-                        $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['old']['remote_ips'], $link);
+                    if($db_ro_user['database_user'] == 'root'){
+						$app->log('User root not allowed for Client databases',LOGLEVEL_WARNING);
+                    } else {
+						// Find out users to drop and users to revoke
+						$drop_or_revoke_user = $this->drop_or_revoke_user($data['new']['database_id'], $data['new']['database_user_id'], $data['old']['remote_ips']);
+						if($drop_or_revoke_user['drop_hosts'] != '') $this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['drop_hosts'], $link);
+						if($drop_or_revoke_user['revoke_hosts'] != '') $this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $drop_or_revoke_user['revoke_hosts'], $link);
+						
+						//$this->process_host_list('DROP', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['old']['remote_ips'], $link);
+                        //$this->process_host_list('REVOKE', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['old']['remote_ips'], $link);
                         $this->process_host_list('GRANT', $data['new']['database_name'], $db_ro_user['database_user'], $db_ro_user['database_password'], $data['new']['remote_ips'], $link, '', true);
                     }
                 }
-          }
+			}
       
 			
 			$link->query('FLUSH PRIVILEGES;');
@@ -361,7 +495,7 @@
         }
         
         
-        if($data['old']['database_user'] == $data['new']['database_user'] && $data['old']['database_password'] == $data['new']['database_password']) {
+        if($data['old']['database_user'] == $data['new']['database_user'] && ($data['old']['database_password'] == $data['new']['database_password'] || $data['new']['database_password'] == '')) {
             return;
         }
         
@@ -369,6 +503,8 @@
         $host_list = array('localhost');
         // get all databases this user was active for
         $db_list = $app->db->queryAllRecords("SELECT `remote_access`, `remote_ips` FROM `web_database` WHERE `database_user_id` = '" . intval($data['old']['database_user_id']) . "'");
+        if(count($db_list) < 1) return; // nothing to do on this server for this db user
+        
         foreach($db_list as $database) {
             if($database['remote_access'] != 'y') continue;
             
@@ -387,10 +523,9 @@
 				$app->log('Renaming MySQL user: '.$data['old']['database_user'].' to '.$data['new']['database_user'],LOGLEVEL_DEBUG);
 			}
 
-			if($data['new']['database_password'] != $data['old']['database_password']) {
-				$db_host = 'localhost';
+			if($data['new']['database_password'] != $data['old']['database_password'] && $data['new']['database_password'] != '') {
 				$link->query("SET PASSWORD FOR '".$link->escape_string($data['new']['database_user'])."'@'$db_host' = '".$link->escape_string($data['new']['database_password'])."';");
-				$app->log('Changing MySQL user password for: '.$data['new']['database_user'],LOGLEVEL_DEBUG);
+				$app->log('Changing MySQL user password for: '.$data['new']['database_user'].'@'.$db_host,LOGLEVEL_DEBUG);
 			}
         }
         

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