From 0be2082ff979371ff34040debc7584662a26bd7c Mon Sep 17 00:00:00 2001
From: ftimme <ft@falkotimme.com>
Date: Tue, 16 Jul 2013 15:44:43 -0400
Subject: [PATCH] - Added "Rewrite Rules" field to the "Redirect" tab so that customers can set rewrite rules themselves on nginx.

---
 server/conf/nginx_vhost.conf.master                   |    4 ++
 install/sql/ispconfig3.sql                            |    1 
 interface/web/sites/lib/lang/de_web_domain.lng        |    2 +
 interface/web/sites/lib/lang/en_web_domain.lng        |    2 +
 interface/web/sites/web_domain_edit.php               |   63 +++++++++++++++++++++++++++++++
 interface/web/sites/templates/web_domain_redirect.htm |    6 +++
 server/plugins-available/nginx_plugin.inc.php         |   14 +++++++
 install/sql/incremental/upd_0054.sql                  |    1 
 interface/web/sites/form/web_domain.tform.php         |    8 ++++
 9 files changed, 100 insertions(+), 1 deletions(-)

diff --git a/install/sql/incremental/upd_0054.sql b/install/sql/incremental/upd_0054.sql
new file mode 100644
index 0000000..7e7f0c3
--- /dev/null
+++ b/install/sql/incremental/upd_0054.sql
@@ -0,0 +1 @@
+ALTER TABLE `web_domain` ADD `rewrite_rules` MEDIUMTEXT NULL DEFAULT NULL;
diff --git a/install/sql/ispconfig3.sql b/install/sql/ispconfig3.sql
index a9ed18c..74c5841 100644
--- a/install/sql/ispconfig3.sql
+++ b/install/sql/ispconfig3.sql
@@ -1760,6 +1760,7 @@
   `fastcgi_php_version` varchar(255) DEFAULT NULL,
   `proxy_directives` mediumtext,
   `last_quota_notification` date NULL default NULL,
+  `rewrite_rules` mediumtext,
   PRIMARY KEY  (`domain_id`)
 ) ENGINE=MyISAM DEFAULT CHARSET=utf8 AUTO_INCREMENT=1 ;
 
diff --git a/interface/web/sites/form/web_domain.tform.php b/interface/web/sites/form/web_domain.tform.php
index a1b2bec..f2c6fa7 100644
--- a/interface/web/sites/form/web_domain.tform.php
+++ b/interface/web/sites/form/web_domain.tform.php
@@ -315,6 +315,14 @@
 			'default'	=> '',
 			'value'		=> array('' => 'no_redirect_txt', 'non_www_to_www' => 'domain.tld => www.domain.tld', 'www_to_non_www' => 'www.domain.tld => domain.tld', '*_domain_tld_to_domain_tld' => '*.doman.tld => domain.tld', '*_domain_tld_to_www_domain_tld' => '*.domain.tld => www.domain.tld', '*_to_domain_tld' => '* => domain.tld', '*_to_www_domain_tld' => '* => www.domain.tld')
 		),
+		'rewrite_rules' => array (
+			'datatype'	=> 'TEXT',
+			'formtype'	=> 'TEXT',
+			'default'	=> '',
+			'value'		=> '',
+			'width'		=> '30',
+			'maxlength'	=> '255'
+		),
 	##################################
 	# ENDE Datatable fields
 	##################################
diff --git a/interface/web/sites/lib/lang/de_web_domain.lng b/interface/web/sites/lib/lang/de_web_domain.lng
index cada171..5e8948a 100644
--- a/interface/web/sites/lib/lang/de_web_domain.lng
+++ b/interface/web/sites/lib/lang/de_web_domain.lng
@@ -116,4 +116,6 @@
 $wb['daily_backup_txt'] = 'Täglich';
 $wb['weekly_backup_txt'] = 'Wöchentlich';
 $wb['monthly_backup_txt'] = 'Monatlich';
+$wb['rewrite_rules_txt'] = 'Rewrite Rules';
+$wb['invalid_rewrite_rules_txt'] = 'Unzulässige Rewrite Rules';
 ?>
diff --git a/interface/web/sites/lib/lang/en_web_domain.lng b/interface/web/sites/lib/lang/en_web_domain.lng
index 594bd15..b8bd682 100644
--- a/interface/web/sites/lib/lang/en_web_domain.lng
+++ b/interface/web/sites/lib/lang/en_web_domain.lng
@@ -116,4 +116,6 @@
 $wb['daily_backup_txt'] = 'Daily';
 $wb['weekly_backup_txt'] = 'Weekly';
 $wb['monthly_backup_txt'] = 'Monthly';
+$wb['rewrite_rules_txt'] = 'Rewrite Rules';
+$wb['invalid_rewrite_rules_txt'] = 'Invalid Rewrite Rules';
 ?>
\ No newline at end of file
diff --git a/interface/web/sites/templates/web_domain_redirect.htm b/interface/web/sites/templates/web_domain_redirect.htm
index 0f69395..3df20e4 100644
--- a/interface/web/sites/templates/web_domain_redirect.htm
+++ b/interface/web/sites/templates/web_domain_redirect.htm
@@ -21,6 +21,10 @@
                     {tmpl_var name='seo_redirect'}
                 </select>
             </div>
+			<div class="ctrlHolder nginx">
+                <label for="rewrite_rules">{tmpl_var name='rewrite_rules_txt'}</label>
+                <textarea name="rewrite_rules" id="rewrite_rules" rows='10' cols='50' style="width:400px;">{tmpl_var name='rewrite_rules'}</textarea>
+            </div>
         </fieldset>
 
         <input type="hidden" name="id" value="{tmpl_var name='id'}">
@@ -58,6 +62,7 @@
                 jQuery('#redirect_type option[value="R,L"]').hide();
                 jQuery('#redirect_type option[value="R=301,L"]').hide();
                 if(selected != "no" && selected != "" && selected != "last" && selected != "break" && selected != "redirect" && selected != "permanent" && selected != "proxy") jQuery('#redirect_type option[value="no"]').attr('selected', 'selected');
+				jQuery('.nginx').show();
             } else {
                 jQuery('#redirect_type option[value="last"]').attr('disabled','disabled');
                 jQuery('#redirect_type option[value="break"]').attr('disabled','disabled');
@@ -71,6 +76,7 @@
                 jQuery('#redirect_type option[value="permanent"]').hide();
 				jQuery('#redirect_type option[value="proxy"]').hide();
                 if(selected != "no" && selected != "" && selected != "R" && selected != "L" && selected != "R,L" && selected != "R=301,L") jQuery('#redirect_type option[value="no"]').attr('selected', 'selected');
+				jQuery('.nginx').hide();
             }
         });
     }
diff --git a/interface/web/sites/web_domain_edit.php b/interface/web/sites/web_domain_edit.php
index e9284d1..e0bdee3 100644
--- a/interface/web/sites/web_domain_edit.php
+++ b/interface/web/sites/web_domain_edit.php
@@ -614,7 +614,15 @@
 		
 		//* get the server config for this server
 		$app->uses("getconf");
-		$web_config = $app->getconf->get_server_config($app->functions->intval(isset($this->dataRecord["server_id"]) ? $this->dataRecord["server_id"] : 0),'web');
+		if($this->id > 0){
+			$web_rec = $app->tform->getDataRecord($this->id);
+			$server_id = $web_rec["server_id"];
+		} else {
+			// Get the first server ID
+			$tmp = $app->db->queryOneRecord("SELECT server_id FROM server WHERE web_server = 1 ORDER BY server_name LIMIT 0,1");
+			$server_id = intval($tmp['server_id']);
+		}
+		$web_config = $app->getconf->get_server_config($app->functions->intval(isset($this->dataRecord["server_id"]) ? $this->dataRecord["server_id"] : $server_id),'web');
 		//* Check for duplicate ssl certs per IP if SNI is disabled
 		if(isset($this->dataRecord['ssl']) && $this->dataRecord['ssl'] == 'y' && $web_config['enable_sni'] != 'y') {
 			$sql = "SELECT count(domain_id) as number FROM web_domain WHERE `ssl` = 'y' AND ip_address = '".$app->db->quote($this->dataRecord['ip_address'])."' and domain_id != ".$this->id;
@@ -630,6 +638,59 @@
 				$app->tform->errorMessage .= $app->tform->lng("error_php_fpm_pm_settings_txt").'<br>';
 			}
 		}
+		
+		// Check rewrite rules
+		$server_type = $web_config['server_type'];
+		
+		if($server_type == 'nginx' && isset($this->dataRecord['rewrite_rules']) && trim($this->dataRecord['rewrite_rules']) != '') {
+			$rewrite_rules = trim($this->dataRecord['rewrite_rules']);
+			$rewrites_are_valid = true;
+			// use this counter to make sure all curly brackets are properly closed
+			$if_level = 0;
+			// Make sure we only have Unix linebreaks
+			$rewrite_rules = str_replace("\r\n", "\n", $rewrite_rules);
+			$rewrite_rules = str_replace("\r", "\n", $rewrite_rules);
+			$rewrite_rule_lines = explode("\n", $rewrite_rules);
+			if(is_array($rewrite_rule_lines) && !empty($rewrite_rule_lines)){
+				foreach($rewrite_rule_lines as $rewrite_rule_line){
+					// rewrite
+					if(preg_match('@^\s*rewrite\s+(^/)?\S+(\$)?\s+\S+(\s+(last|break|redirect|permanent|))?\s*;\s*$@', $rewrite_rule_line)) continue;
+					// if
+					if(preg_match('@^\s*if\s+\(\s*\$\S+(\s+(\!?(=|~|~\*))\s+(\S+|\".+\"))?\s*\)\s*\{\s*$@', $rewrite_rule_line)){
+						$if_level += 1;
+						continue;
+					}
+					// if - check for files, directories, etc.
+					if(preg_match('@^\s*if\s+\(\s*\!?-(f|d|e|x)\s+\S+\s*\)\s*\{\s*$@', $rewrite_rule_line)){
+						$if_level += 1;
+						continue;
+					}
+					// break
+					if(preg_match('@^\s*break\s*;\s*$@', $rewrite_rule_line)){
+						$if_level += 1;
+						continue;
+					}
+					// return code [ text ]
+					if(preg_match('@^\s*return\s+\d\d\d.*;\s*$@', $rewrite_rule_line)) continue;
+					// return code URL
+					// return URL
+					if(preg_match('@^\s*return(\s+\d\d\d)?\s+(http|https|ftp)\://([a-zA-Z0-9\.\-]+(\:[a-zA-Z0-9\.&%\$\-]+)*\@)*((25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9])\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0)\.(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])|localhost|([a-zA-Z0-9\-]+\.)*[a-zA-Z0-9\-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(\:[0-9]+)*(/($|[a-zA-Z0-9\.\,\?\'\\\+&%\$#\=~_\-]+))*\s*;\s*$@', $rewrite_rule_line)) continue;
+					// set
+					if(preg_match('@^\s*set\s+\$\S+\s+\S+\s*;\s*$@', $rewrite_rule_line)) continue;
+					// closing curly bracket
+					if(trim($rewrite_rule_line) == '}'){
+						$if_level -= 1;
+						continue;
+					}
+					$rewrites_are_valid = false;
+					break;
+				}
+			}
+			
+			if(!$rewrites_are_valid || $if_level != 0){
+				$app->tform->errorMessage .= $app->tform->lng("invalid_rewrite_rules_txt").'<br>';
+			}
+		}
 
 		parent::onSubmit();
 	}
diff --git a/server/conf/nginx_vhost.conf.master b/server/conf/nginx_vhost.conf.master
index 7217636..02ea5af 100644
--- a/server/conf/nginx_vhost.conf.master
+++ b/server/conf/nginx_vhost.conf.master
@@ -170,6 +170,10 @@
         }
 </tmpl_if>
 
+<tmpl_loop name="rewrite_rules">
+        <tmpl_var name='rewrite_rule'>
+</tmpl_loop>
+
 <tmpl_loop name="nginx_directives">
         <tmpl_var name='nginx_directive'>
 </tmpl_loop>
diff --git a/server/plugins-available/nginx_plugin.inc.php b/server/plugins-available/nginx_plugin.inc.php
index 84ee8ee..24caa3e 100644
--- a/server/plugins-available/nginx_plugin.inc.php
+++ b/server/plugins-available/nginx_plugin.inc.php
@@ -939,6 +939,20 @@
 		// backwards compatibility; since ISPConfig 3.0.5, the PHP mode for nginx is called 'php-fpm' instead of 'fast-cgi'. The following line makes sure that old web sites that have 'fast-cgi' in the database still get PHP-FPM support.
 		if($vhost_data['php'] == 'fast-cgi') $vhost_data['php'] = 'php-fpm';
 		
+		// Custom rewrite rules
+		$final_rewrite_rules = array();
+		$custom_rewrite_rules = $data['new']['rewrite_rules'];
+		// Make sure we only have Unix linebreaks
+		$custom_rewrite_rules = str_replace("\r\n", "\n", $custom_rewrite_rules);
+		$custom_rewrite_rules = str_replace("\r", "\n", $custom_rewrite_rules);
+		$custom_rewrite_rule_lines = explode("\n", $custom_rewrite_rules);
+		if(is_array($custom_rewrite_rule_lines) && !empty($custom_rewrite_rule_lines)){
+			foreach($custom_rewrite_rule_lines as $custom_rewrite_rule_line){
+				$final_rewrite_rules[] = array('rewrite_rule' => $custom_rewrite_rule_line);
+			}
+		}
+		$tpl->setLoop('rewrite_rules', $final_rewrite_rules);
+		
 		// Custom nginx directives
 		$final_nginx_directives = array();
 		$nginx_directives = $data['new']['nginx_directives'];

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