From 4cbafb8f6f14e41bf9d90d4778a0ff5bcce3e584 Mon Sep 17 00:00:00 2001
From: Marcello Coutinho <marcellocoutinho@gmail.com>
Date: Tue, 2 Dec 2014 03:57:28 -0200
Subject: varnish3 - Add apply changes button to package gui

---
 config/varnish3/varnish.inc              | 58 +++++++++++++++++++++++---------
 config/varnish3/varnish_backends.xml     |  4 ---
 config/varnish3/varnish_custom_vcl.xml   |  2 --
 config/varnish3/varnish_lb_directors.xml |  4 ---
 config/varnish3/varnish_settings.xml     |  1 -
 5 files changed, 43 insertions(+), 26 deletions(-)

(limited to 'config/varnish3')

diff --git a/config/varnish3/varnish.inc b/config/varnish3/varnish.inc
index f14e514e..730bf5ab 100644
--- a/config/varnish3/varnish.inc
+++ b/config/varnish3/varnish.inc
@@ -41,6 +41,9 @@ if (is_dir('/usr/pbi/varnish-' . php_uname("m"))) {
 	define('VARNISH_LOCALBASE','/usr/local');
 }
 
+define('VARNISH_DIRTYPATH',"{$g['varrun_path']}/varnish.conf.dirty");
+define('VARNISH_CONFFILE','/var/etc/default.vcl');
+
 function varnish_settings_post_validate($post, &$input_errors) {
 	if( !is_numeric($post['storagesize']))
 		$input_errors[] = "A valid number is required for the field 'Storage size'";
@@ -132,13 +135,22 @@ function text_area_decode($text){
 }
 
 function varnish_check_config(){
-	global $savemsg;
+	global $savemsg,$config;
 
 	if (!isset($config['installedpackages']['varnishsettings']['config'][0]['enablevarnish']))
 		return;
 
-	exec(VARNISH_LOCALBASE."/bin/varnishd -C -f /var/etc/default.vcl 2>&1",$output,$return);
-	if ($return >0){
+	exec(VARNISH_LOCALBASE."/bin/varnishd -C -f ".VARNISH_CONFFILE." 2>&1",$output,$return);
+	if ($return == 0){
+		if (isset($_REQUEST['apply'])){
+			varnish_start(true);
+			return;
+			}
+
+		if (file_exists(VARNISH_DIRTYPATH))
+			$savemsg="Varnish configuration has been changed.<br>You must apply in order to take effect.<br>";
+		}
+	else{
 		$savemsg.= implode("<br>",$output);
 		$savemsg.= "<br>Daemon will not be restarted.";
 		return 1;
@@ -147,13 +159,22 @@ function varnish_check_config(){
 }
 
 
-function varnish_start() {
+function varnish_start($force_start=false) {
 	global $g, $config;
+
+	if ($force_start){
+		mwexec("/usr/local/etc/rc.d/varnish.sh");
+		unlink_if_exists(VARNISH_DIRTYPATH);
+		return;
+		}
+
 	if ($config['installedpackages']['varnishsettings']['config'][0]['enablevarnish']){
 		exec("chmod +x /usr/local/etc/rc.d/varnish.sh");
-		if (varnish_check_config() == 0)
-			mwexec("/usr/local/etc/rc.d/varnish.sh");}
-	else{
+		if (varnish_check_config() == 0 || $force_start){
+			unlink_if_exists(VARNISH_DIRTYPATH);
+			mwexec("/usr/local/etc/rc.d/varnish.sh");
+			}
+		}else{
 		exec("chmod -x /usr/local/etc/rc.d/varnish.sh");
 		mwexec("/usr/bin/killall varnishd");}
 }
@@ -287,6 +308,7 @@ function create_varnish_rcd_file() {
 		}
 	}
 	$fd = fopen("/usr/local/etc/rc.d/varnish.sh", "w");
+	$conf_file=VARNISH_CONFFILE;
 	$rc_file = <<<EOF
 #!/bin/sh
 mkdir -p /var/varnish
@@ -306,14 +328,14 @@ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin \
 	require_once("pkg-utils.inc");
 	require_once("varnish.inc");
 	sync_package_varnish();
-	#varnish_start();
+	unlink_if_exists(VARNISH_DIRTYPATH);
 
 ?>
 ENDOFF
 
 /usr/local/sbin/varnishd \
 	{$listeningport} \
-	-f /var/etc/default.vcl \
+	-f {$conf_file} \
 	{$storage_type} \
 	-w {$minworkers},{$maxworkers},{$timeoutworkers} \
 	{$advancedstartup}
@@ -442,6 +464,12 @@ EOFA;
 
 function sync_package_varnish() {
 	global $config, $g;
+
+	if (isset($_POST["apply"])){
+		varnish_start();
+		unlink_if_exists(VARNISH_DIRTYPATH);
+		return;
+	}
 	if (is_array($config['installedpackages']['varnishcustomvcl']['config'])) {
 		foreach($config['installedpackages']['varnishcustomvcl']['config'] as $vcl) {
 			if ($vcl['vcl_recv_early'])
@@ -610,7 +638,7 @@ $varnish_config_file = <<<EOF
 # Varnish configuration file
 # Automatically generated by the pfSense package system
 
-# This file is located in /var/etc/default.vcl
+# This file is located in {$conf_file}
 
 sub vcl_error {
 	if (obj.status == 503 && req.restarts < {$vcl_restarts}) {
@@ -710,7 +738,10 @@ sub vcl_fini {
 }
 
 EOF;
-		file_put_contents("/var/etc/default.vcl",$varnish_config_file,LOCK_EX);
+		file_put_contents(VARNISH_CONFFILE,$varnish_config_file,LOCK_EX);
+		touch(VARNISH_DIRTYPATH);
+		varnish_sync_on_changes();
+
 		$cc_file=VARNISH_LOCALBASE."/bin/cc";
 		foreach (glob(VARNISH_LOCALBASE."/bin/gcc*") as $bin_file) {
 			$gcc_file=$bin_file;
@@ -719,11 +750,8 @@ EOF;
 			symlink($gcc_file,$cc_file);
 		}
 
-		$fd = fopen("/var/etc/default.vcl", "w");
-		fwrite($fd, $varnish_config_file);
-		fclose($fd);
+		create_varnish_rcd_file();
 
-		varnish_sync_on_changes();
 }
 
 /* Uses XMLRPC to synchronize the changes to a remote node */
diff --git a/config/varnish3/varnish_backends.xml b/config/varnish3/varnish_backends.xml
index 2a2db35e..95248cb9 100644
--- a/config/varnish3/varnish_backends.xml
+++ b/config/varnish3/varnish_backends.xml
@@ -297,13 +297,9 @@
 	</custom_php_command_before_form>
 	<custom_delete_php_command>
 		sync_package_varnish();
-		create_varnish_rcd_file();
-		varnish_start();
 	</custom_delete_php_command>	
 	<custom_php_resync_config_command>
 		sync_package_varnish();
-		create_varnish_rcd_file();
-		varnish_start();
 	</custom_php_resync_config_command>
 	<custom_php_validation_command>
 		varnish_backends_post_validate($_POST, $input_errors);
diff --git a/config/varnish3/varnish_custom_vcl.xml b/config/varnish3/varnish_custom_vcl.xml
index d0d9ff21..4950c6ed 100644
--- a/config/varnish3/varnish_custom_vcl.xml
+++ b/config/varnish3/varnish_custom_vcl.xml
@@ -176,7 +176,5 @@
 	</custom_php_validation_command>	
 	<custom_php_resync_config_command>
 		sync_package_varnish();
-		create_varnish_rcd_file();
-		varnish_start();
 	</custom_php_resync_config_command>
 </packagegui>
\ No newline at end of file
diff --git a/config/varnish3/varnish_lb_directors.xml b/config/varnish3/varnish_lb_directors.xml
index 313bf0d6..c8868ec4 100644
--- a/config/varnish3/varnish_lb_directors.xml
+++ b/config/varnish3/varnish_lb_directors.xml
@@ -276,13 +276,9 @@
 	</custom_php_command_before_form>
 	<custom_delete_php_command>
 		sync_package_varnish();
-		create_varnish_rcd_file();
-		varnish_start();
 	</custom_delete_php_command>	
 	<custom_php_resync_config_command>
 		sync_package_varnish();
-		create_varnish_rcd_file();
-		varnish_start();
 	</custom_php_resync_config_command>
 	<custom_php_validation_command>
 		varnish_lb_directors_post_validate($_POST, $input_errors);
diff --git a/config/varnish3/varnish_settings.xml b/config/varnish3/varnish_settings.xml
index b80b7fcf..accfaae8 100644
--- a/config/varnish3/varnish_settings.xml
+++ b/config/varnish3/varnish_settings.xml
@@ -290,7 +290,6 @@
 	<custom_php_resync_config_command>
 		sync_package_varnish();
 		create_varnish_rcd_file();
-		varnish_start();
 	</custom_php_resync_config_command>
 	<custom_php_validation_command>
 		varnish_settings_post_validate($_POST, $input_errors);
-- 
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