added use SSL on purge requests option
added use SSL on purge requests option

 Binary files a/assets/banner-772x250.png and b/assets/banner-772x250.png differ
file:a/readme.txt -> file:b/readme.txt
--- a/readme.txt
+++ b/readme.txt
@@ -1,16 +1,16 @@
-=== VCaching ===
-Donate link: www.paypal.com/use/email/razvan_stanga@yahoo.com
+=== Varnish Caching ===
+Donate link: https://www.paypal.me/razvanstanga
 Contributors: razvanstanga
 Tags: varnish, purge, cache, caching, optimization, performance, traffic
 Requires at least: 4.0
-Tested up to: 4.5
-Stable tag: 1.4
+Tested up to: 4.9
+Stable tag: 1.6.6
 License: GPLv2 or later
 
-Wordpress Varnish Cache 3.x/4.x integration
+Wordpress Varnish Cache 3.x/4.x/5.x integration
 
 == Description ==
-Complete Wordpress Varnish Cache 3.x/4.x integration.
+Complete Wordpress Varnish Cache 3.x/4.x/5.x integration.
 
 This plugin handles all integration with Varnish Cache. It was designed for high traffic websites.
 
@@ -54,10 +54,6 @@
 * https://wordpress.org/plugins/varnish-http-purge/
 * https://github.com/dreamhost/varnish-vcl-collection/
 
-Implemented on :
-
-* www.bvoltaire.fr
-
 == Installation ==
 
 * You must install Varnish Cache on your server(s)
@@ -110,7 +106,70 @@
 This is a small step towards securing your site for denial of service attacks. Denial of service attacks can happen if the attacker bypasses Varnish Cache and hits the backend directly.
 With the current configuration and the way Wordpress works, this can still happen with POST/AJAX requests.
 
+= Available filters =
+
+* `vcaching_varnish_ips` - change the IPs set in Settings
+* `vcaching_varnish_hosts` - change the Hosts set in Settings
+* `vcaching_events` - add events to trigger the purge
+* `vcaching_schema` - change the schema (default is http://)
+* `vcaching_purge_urls` - add additional URLs to purge
+
 == Changelog ==
+
+= 1.6.6 =
+* no more SSl auto detection. If you use SSL with Varnish use the option 'Use SSL (https://) for purge requests.'
+* there are cases where the website uses SSL, but the Varnish servers do not
+
+= 1.6.5 =
+* added sslverify set default to false to wp_remote_request. thanks @Jules81
+
+= 1.6.4 =
+* fixed php notice
+
+= 1.6.3 =
+* added SSL to schema filter. thanks @Jules81
+
+= 1.6.2 =
+* fixed purge_post empty 2nd param
+
+= 1.6.1 =
+* Do/do not purge when saving menus option
+* fixed bug showing multiple `Truncate message activated ...`
+
+= 1.6 =
+* Varnish 5.x support
+
+= 1.5.5 =
+* fixed ob_end_flush error in wp-admin while debug is on. thanks @samlangdon
+
+= 1.5.4 =
+* improvements to Varnish configs like websocket support, remove the Google Analytics added parameters, strip hash, remove unnecessary cookies. thanks @pavelprischepa
+
+= 1.5.3 =
+* hardcoded on/off VCL Generator, filters added to readme
+
+= 1.5.2 =
+* added AMP URL purge
+
+= 1.5.1 =
+* fixed PHP notices
+* tested with 4.6
+
+= 1.5 =
+* `Purge from Varnish` post/page action link
+* removed 10 chars logged in cookie restriction
+* code cleanup/some wp coding standards
+* vcaching_varnish_ips filter
+* vcaching_varnish_hosts filter
+
+= 1.4.3 =
+* Truncate option added for too many 'trying to purge' messages. Added check for ZipArchive class to download VCLs.
+
+= 1.4.2 =
+* Bugfix release. Replaced home_url with plugins_url to show VCaching image
+
+= 1.4.1 =
+* Do not cache static files on admin domain
 
 = 1.4 =
 * Varnish Cache configuration generator

--- a/varnish-conf/v3/default.vcl
+++ b/varnish-conf/v3/default.vcl
@@ -21,6 +21,11 @@
         return(pipe);
     }
 
+    # Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
+    if (req.http.Upgrade ~ "(?i)websocket") {
+        return (pipe);
+    }
+
     # redirect yourdomain.com to www.yourdomain.com
     #if (req.http.host ~ "^yourdomain\.com$") {
     #    error 750 "http://www.yourdomain.com" + req.url;
@@ -40,7 +45,7 @@
     }
 
     # don't cache logged-in users. you can set users `logged in cookie` name in settings
-    if (req.http.Cookie ~ "c005492c65") {
+    if (req.http.Cookie ~ "flxn34napje9kwbwr4bjwz5miiv9dhgj87dct4ep0x3arr7ldif73ovpxcgm88vs") {
         set req.http.X-VC-Cacheable = "NO:Found logged in cookie";
         return(pass);
     }
@@ -69,10 +74,50 @@
     #}
 
     # Remove has_js, Google Analytics __*, and wooTracker cookies.
-    set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js|wooTracker)=[^;]*", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(has_js|wooTracker)=[^;]*", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_ga=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_gat=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmctr=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmcmd.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmccn.=[^;]+(; )?", "");
     set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
+    # Remove DoubleClick offensive cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__gads=[^;]+(; )?", "");
+
+    # Remove the Quant Capital cookies (added by some plugin, all __qca)
+    set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");
+
+    # Remove the AddThis cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__atuv.=[^;]+(; )?", "");
+
+    # Remove a ";" prefix in the cookie if present
+    set req.http.Cookie = regsuball(req.http.Cookie, "^;\s*", "");
+
+    # Are there cookies left with only spaces or that are empty?
     if (req.http.Cookie ~ "^\s*$") {
         unset req.http.Cookie;
+    }
+
+    # Protecting against the HTTPOXY CGI vulnerability.
+    unset req.http.proxy;
+
+    # Remove the Google Analytics added parameters.
+    if (req.url ~ "(\?|&)(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=") {
+        set req.url = regsuball(req.url, "&(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "");
+        set req.url = regsuball(req.url, "\?(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "?");
+        set req.url = regsub(req.url, "\?&", "?");
+        set req.url = regsub(req.url, "\?$", "");
+    }
+
+    # Strip hash, server doesn't need it.
+    if (req.url ~ "\#") {
+        set req.url = regsub(req.url, "\#.*$", "");
+    }
+
+    # Strip a trailing ? if it exists
+    if (req.url ~ "\?$") {
+        set req.url = regsub(req.url, "\?$", "");
     }
 
     return(lookup);
@@ -157,3 +202,9 @@
     }
 }
 
+sub vcl_pipe {
+     if (req.http.upgrade) {
+         set bereq.http.upgrade = req.http.upgrade;
+     }
+}
+

--- a/varnish-conf/v4/default.vcl
+++ b/varnish-conf/v4/default.vcl
@@ -23,6 +23,11 @@
         return(pipe);
     }
 
+    # Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
+    if (req.http.Upgrade ~ "(?i)websocket") {
+        return (pipe);
+    }
+
     # redirect yourdomain.com to www.yourdomain.com
     #if (req.http.host ~ "^yourdomain\.com$") {
     #    set req.http.X-VC-Redirect = "http://www.yourdomain.com" + req.url;
@@ -43,7 +48,7 @@
     }
 
     # don't cache logged-in users. you can set users `logged in cookie` name in settings
-    if (req.http.Cookie ~ "c005492c65") {
+    if (req.http.Cookie ~ "flxn34napje9kwbwr4bjwz5miiv9dhgj87dct4ep0x3arr7ldif73ovpxcgm88vs") {
         set req.http.X-VC-Cacheable = "NO:Found logged in cookie";
         return(pass);
     }
@@ -71,11 +76,54 @@
     #}
 
     # Remove has_js, Google Analytics __*, and wooTracker cookies.
-    set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(__[a-z]+|has_js|wooTracker)=[^;]*", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(has_js|wooTracker)=[^;]*", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_ga=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_gat=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmctr=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmcmd.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmccn.=[^;]+(; )?", "");
     set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
+    # Remove DoubleClick offensive cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__gads=[^;]+(; )?", "");
+
+    # Remove the Quant Capital cookies (added by some plugin, all __qca)
+    set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");
+
+    # Remove the AddThis cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__atuv.=[^;]+(; )?", "");
+
+    # Remove a ";" prefix in the cookie if present
+    set req.http.Cookie = regsuball(req.http.Cookie, "^;\s*", "");
+
+    # Are there cookies left with only spaces or that are empty?
     if (req.http.Cookie ~ "^\s*$") {
         unset req.http.Cookie;
     }
+
+    # Protecting against the HTTPOXY CGI vulnerability.
+    unset req.http.proxy;
+
+    # Remove the Google Analytics added parameters.
+    if (req.url ~ "(\?|&)(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=") {
+        set req.url = regsuball(req.url, "&(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "");
+        set req.url = regsuball(req.url, "\?(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "?");
+        set req.url = regsub(req.url, "\?&", "?");
+        set req.url = regsub(req.url, "\?$", "");
+    }
+
+    # Strip hash, server doesn't need it.
+    if (req.url ~ "\#") {
+        set req.url = regsub(req.url, "\#.*$", "");
+    }
+
+    # Strip a trailing ? if it exists
+    if (req.url ~ "\?$") {
+        set req.url = regsub(req.url, "\?$", "");
+    }
+
+    # Normalize the query arguments
+    set req.url = std.querysort(req.url);
 
     return(hash);
 }
@@ -162,3 +210,9 @@
     }
 }
 
+sub vcl_pipe {
+     if (req.http.upgrade) {
+         set bereq.http.upgrade = req.http.upgrade;
+     }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/LICENSE
@@ -1,1 +1,340 @@
-
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+notices that refer to this License and to the absence of any warranty;
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+
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+These requirements apply to the modified work as a whole.  If
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+                            NO WARRANTY
+
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+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
+

--- /dev/null
+++ b/varnish-conf/v5/README.rst
@@ -1,1 +1,149 @@
+======================
+varnish-vcl-collection
+======================
 
+Collection of Varnish VCL files.  The purpose of this collection is to make
+it easier to configure varnish for some common setups and behaviors.  Some
+of these files require you to define specific ACLs in your main VCL, and also
+note that the order of including files could change the behavior of Varnish.
+
+The main goal for this VCL Collection is to provide a simple config with just
+a few options that can make Varnish work for the majority of sites. Most of
+the "configuration" is done by choosing which files to include and defining
+ACLs. We hope to provide a robust configuration that can be used with
+relatively little information or control over what is actually running on
+the backend.  This is particularly useful for managed web hosts who want
+to have customers benefit from the performance of a caching proxy without
+limiting what can run on the web backend and without customizing the
+configuration for each customer.
+
+See `default.vcl` for an example of how to use this collection
+of VCLs to configure Varnish for a WordPress site.
+
+
+CloudFlare
+==========
+
+If you use CloudFlare and the backend is running `mod_cloudflare` (for Apache)
+or `http_realip_module` (for Nginx), then you should use `lib/cloudflare.vcl`.
+
+CloudFlare uses the HTTP Header `CF-Connecting-IP` to store the original
+client IP address.  Note that unlike the `X-Forwarded-For` Header, this just
+contains the original IP address, not the entire forward chain.
+
+If you are using a CloudFlare Railgun server, or have any other trusted proxy
+servers between Varnish and CloudFlare, you will need to specify them in the
+`cloudflare` ACL.
+
+Also note that you will need to make sure that Varnish's IP is configured
+as trusted in `mod_cloudflare` or the `http_realip_module` on the backend.
+
+Example usage::
+
+	include "lib/cloudflare.vcl";
+
+	acl cloudflare {
+		# put the IP of your Railgun (or proxy) server here
+		# "1.2.3.4";
+	}
+
+
+Mobile Device Optimizaiton
+==========================
+
+Different applications optimize for mobile devices in different ways.  The
+best way is to use an "adaptive" design so that the same HTML is served to
+both desktop and mobile devices.  If your application is "adaptive", then
+no special Varnish config is necessary; all devices will access the same
+objects in the Varnish cache.
+
+However, if your application does serve different content to different
+devices, then you'll need to handle that in Varnish.  Since applications
+do mobile device detection differently, the VCL code included here is
+intentionally limited and simple.  Crafting a custom configuration to handle
+the way your application treats mobile devices will usually give better
+results than using one of the following standard configs.
+
+`lib/mobile_cache.vcl` simply adds the string `mobile` to the hash data to
+give mobile devices a separate cache from non-mobile devices.  This is only
+viable if your application serves just 2 different versions of each page
+depending on if the visitor is on a mobile device or not (and if the
+application uses the same method to detect mobile devices).  Any disagreement
+between `mobile_cache.vcl` and your backend on what User-Agents should be
+considered "mobile" could mean that the incorrect versions of pages are
+served to some visitors.
+
+`lib/mobile_pass.vcl` simply disables caching for mobile devices.  This is
+not good for performance, but will at least will prevent serving the
+incorrect version of pages to mobile visitors.
+
+
+HTTP Purging
+============
+
+Include `lib/purge.vcl` to allow purging pages from the cache using the HTTP
+PURGE method.  This uses the ban feature of varnish and will make bans take
+advantage of Varnish's ban-lurker.  You will need to specify a `purge` ACL
+so that only requests coming from your application are allowed to purge.
+
+Example usage::
+
+	include "lib/purge.vcl";
+
+	acl purge {
+		# include the IP of your app if it isn't on localhost
+		"localhost";
+		"127.0.0.1";
+	}
+
+There are several different possible behaviors of HTTP purging which can be
+controlled with the X-VC-Purge-Method HTTP header.  This config will be smart
+and attempt to automatically pick the best method based on the URL if you
+don't use an X-VC-Purge-Method header.  See the comments in `lib/purge.vcl` for
+details.
+You can also use the X-VC-Purge-Key method. Generate a MD5/SHA-256 hash and fill it on line
+if (req.http.X-VC-Purge-Key == "hash-to-be-filled-in") {
+in lib/purge.vcl. Then use the same hash in Varnish Caching WP admin.
+
+
+Static File Caching
+===================
+
+Include `lib/static.vcl` to use a simple set of rules to cache static files.
+This will ignore the query string part of request URLs, and discard all
+cookies for these requests.  This will also cache static files for 24 hours.
+
+The cache behavior for this vcl can be bypassed by adding `nocache` to the
+url.  For example, `http://example.com/foo.jpg?nocache` will always
+retrieve the file from the backend instead of serving from the cache.
+
+
+Big Files
+=========
+
+Varnish cannot cache files larger than the entire cache.  Additionally, a few
+large files could potentially fill up the cache and force many more small
+files to be removed from the cache. Use `lib/bigfiles.vcl` or
+`lib/bigfiles_pipe.vcl` to prevent caching files larger than 10 MB.  This
+size was chosen because this should allow most common website assets to be
+cached.  Files larger than 10 MB such as videos, long podcasts, or binary
+downloads are better suited to be served with a CDN or some server separate
+from your main web application.  This config will still allow Varnish to
+serve these large files, but the files will always be retrieved from the
+backend.
+
+`lib/bigfiles.vcl` marks files with `hit_for_pass` when they are above the
+size threshold.  However this only works in Varnish 3.0.3 or later.  Earlier
+versions of Varnish will instead show an internal server error when this
+method is used.  In the case of these older versions of Varnish, you should
+use `lib/bigfiles_pipe.vcl`, which instead pipes the request.
+
+Your main VCL must have `import std;`.  This import line is not included
+within the files themselves because having an import multiple times in a
+Varnish config (counting all included files) produces a compile error.
+
+Example usage::
+
+	import std;
+	include "lib/bigfiles.vcl";
+

--- /dev/null
+++ b/varnish-conf/v5/conf/acl.vcl
@@ -1,1 +1,10 @@
+acl cloudflare {
+    # set this ip to your Railgun IP (if applicable)
+    # "1.2.3.4";
+}
 
+acl purge {
+    "localhost";
+    "127.0.0.1";
+    #"192.168.0.2";
+}

--- /dev/null
+++ b/varnish-conf/v5/conf/backend.vcl
@@ -1,1 +1,16 @@
+import directors;
 
+backend backend1 {
+    .host = "192.168.0.2";
+    .port = "80";
+}
+
+sub vcl_init {
+    new backends = directors.round_robin();
+    backends.add_backend(backend1);
+}
+
+sub vcl_recv {
+    set req.backend_hint = backends.backend();
+}
+

--- /dev/null
+++ b/varnish-conf/v5/default.vcl
@@ -1,1 +1,218 @@
-
+vcl 4.0;
+
+include "conf/backend.vcl";
+include "conf/acl.vcl";
+
+import std;
+
+include "lib/xforward.vcl";
+include "lib/cloudflare.vcl";
+include "lib/purge.vcl";
+include "lib/bigfiles.vcl";
+include "lib/static.vcl";
+
+# Pick just one of the following:
+# (or don't use either of these if your application is "adaptive")
+# include "lib/mobile_cache.vcl";
+# include "lib/mobile_pass.vcl";
+
+### WordPress-specific config ###
+sub vcl_recv {
+    # pipe on weird http methods
+    if (req.method !~ "^GET|HEAD|PUT|POST|TRACE|OPTIONS|DELETE$") {
+        return(pipe);
+    }
+
+    # Implementing websocket support (https://www.varnish-cache.org/docs/4.0/users-guide/vcl-example-websockets.html)
+    if (req.http.Upgrade ~ "(?i)websocket") {
+        return (pipe);
+    }
+
+    # redirect yourdomain.com to www.yourdomain.com
+    #if (req.http.host ~ "^yourdomain\.com$") {
+    #    set req.http.X-VC-Redirect = "http://www.yourdomain.com" + req.url;
+    #    return (synth(750, "Moved permanently"));
+    #}
+
+    # if you use a subdomain for admin section, do not cache it
+    #if (req.http.host ~ "admin.yourdomain.com") {
+    #    set req.http.X-VC-Cacheable = "NO:Admin domain";
+    #    return(pass);
+    #}
+
+    ### Check for reasons to bypass the cache!
+    # never cache anything except GET/HEAD
+    if (req.method != "GET" && req.method != "HEAD") {
+        set req.http.X-VC-Cacheable = "NO:Request method:" + req.method;
+        return(pass);
+    }
+
+    # don't cache logged-in users. you can set users `logged in cookie` name in settings
+    if (req.http.Cookie ~ "flxn34napje9kwbwr4bjwz5miiv9dhgj87dct4ep0x3arr7ldif73ovpxcgm88vs") {
+        set req.http.X-VC-Cacheable = "NO:Found logged in cookie";
+        return(pass);
+    }
+
+    # don't cache ajax requests
+    if (req.http.X-Requested-With == "XMLHttpRequest") {
+        set req.http.X-VC-Cacheable = "NO:Requested with: XMLHttpRequest";
+        return(pass);
+    }
+
+    # don't cache these special pages. Not needed, left here as example
+    #if (req.url ~ "nocache|wp-admin|wp-(comments-post|login|activate|mail)\.php|bb-admin|server-status|control\.php|bb-login\.php|bb-reset-password\.php|register\.php") {
+    #    set req.http.X-VC-Cacheable = "NO:Special page: " + req.url;
+    #    return(pass);
+    #}
+
+    ### looks like we might actually cache it!
+    # fix up the request
+    set req.url = regsub(req.url, "\?replytocom=.*$", "");
+
+    # strip query parameters from all urls (so they cache as a single object)
+    # be carefull using this option
+    #if (req.url ~ "\?.*") {
+    #    set req.url = regsub(req.url, "\?.*", "");
+    #}
+
+    # Remove has_js, Google Analytics __*, and wooTracker cookies.
+    set req.http.Cookie = regsuball(req.http.Cookie, "(^|;\s*)(has_js|wooTracker)=[^;]*", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "__utm.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_ga=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "_gat=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmctr=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmcmd.=[^;]+(; )?", "");
+    set req.http.Cookie = regsuball(req.http.Cookie, "utmccn.=[^;]+(; )?", "");
+    set req.http.Cookie = regsub(req.http.Cookie, "^;\s*", "");
+    # Remove DoubleClick offensive cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__gads=[^;]+(; )?", "");
+
+    # Remove the Quant Capital cookies (added by some plugin, all __qca)
+    set req.http.Cookie = regsuball(req.http.Cookie, "__qc.=[^;]+(; )?", "");
+
+    # Remove the AddThis cookies
+    set req.http.Cookie = regsuball(req.http.Cookie, "__atuv.=[^;]+(; )?", "");
+
+    # Remove a ";" prefix in the cookie if present
+    set req.http.Cookie = regsuball(req.http.Cookie, "^;\s*", "");
+
+    # Are there cookies left with only spaces or that are empty?
+    if (req.http.Cookie ~ "^\s*$") {
+        unset req.http.Cookie;
+    }
+
+    # Protecting against the HTTPOXY CGI vulnerability.
+    unset req.http.proxy;
+
+    # Remove the Google Analytics added parameters.
+    if (req.url ~ "(\?|&)(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=") {
+        set req.url = regsuball(req.url, "&(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "");
+        set req.url = regsuball(req.url, "\?(utm_source|utm_medium|utm_campaign|utm_content|gclid|cx|ie|cof|siteurl)=([A-z0-9_\-\.%25]+)", "?");
+        set req.url = regsub(req.url, "\?&", "?");
+        set req.url = regsub(req.url, "\?$", "");
+    }
+
+    # Strip hash, server doesn't need it.
+    if (req.url ~ "\#") {
+        set req.url = regsub(req.url, "\#.*$", "");
+    }
+
+    # Strip a trailing ? if it exists
+    if (req.url ~ "\?$") {
+        set req.url = regsub(req.url, "\?$", "");
+    }
+
+    # Normalize the query arguments
+    set req.url = std.querysort(req.url);
+
+    return(hash);
+}
+
+sub vcl_hash {
+    set req.http.hash = req.url;
+    if (req.http.host) {
+        set req.http.hash = req.http.hash + "#" + req.http.host;
+    } else {
+        set req.http.hash = req.http.hash + "#" + server.ip;
+    }
+    # Add the browser cookie only if cookie found. Not needed, left here as example
+    #if (req.http.Cookie ~ "wp-postpass_|wordpress_logged_in_|comment_author|PHPSESSID") {
+    #    hash_data(req.http.Cookie);
+    #    set req.http.hash = req.http.hash + "#" + req.http.Cookie;
+    #}
+}
+
+sub vcl_backend_response {
+    # make sure grace is at least 2 minutes
+    if (beresp.grace < 2m) {
+        set beresp.grace = 2m;
+    }
+
+    # overwrite ttl with X-VC-TTL
+    if (beresp.http.X-VC-TTL) {
+        set beresp.ttl = std.duration(beresp.http.X-VC-TTL + "s", 0s);
+    }
+
+    # catch obvious reasons we can't cache
+    if (beresp.http.Set-Cookie) {
+        set beresp.ttl = 0s;
+    }
+
+    # Don't cache object as instructed by header bereq.X-VC-Cacheable
+    if (bereq.http.X-VC-Cacheable ~ "^NO") {
+        set beresp.http.X-VC-Cacheable = bereq.http.X-VC-Cacheable;
+        set beresp.uncacheable = true;
+        set beresp.ttl = 120s;
+
+    # Varnish determined the object is not cacheable
+    } else if (beresp.ttl <= 0s) {
+        if (!beresp.http.X-VC-Cacheable) {
+            set beresp.http.X-VC-Cacheable = "NO:Not cacheable, ttl: "+ beresp.ttl;
+        }
+        set beresp.uncacheable = true;
+        set beresp.ttl = 120s;
+
+    # You are respecting the Cache-Control=private header from the backend
+    } else if (beresp.http.Cache-Control ~ "private") {
+        set beresp.http.X-VC-Cacheable = "NO:Cache-Control=private";
+        set beresp.uncacheable = true;
+        set beresp.ttl = 120s;
+
+    # Cache object
+    } else if (beresp.http.X-VC-Enabled ~ "true") {
+        if (!beresp.http.X-VC-Cacheable) {
+            set beresp.http.X-VC-Cacheable = "YES:Is cacheable, ttl: " + beresp.ttl;
+        }
+
+    # Do not cache object
+    } else if (beresp.http.X-VC-Enabled ~ "false") {
+        if (!beresp.http.X-VC-Cacheable) {
+            set beresp.http.X-VC-Cacheable = "NO:Disabled";
+        }
+        set beresp.ttl = 0s;
+    }
+
+    # Avoid caching error responses
+    if (beresp.status == 404 || beresp.status >= 500) {
+        set beresp.ttl   = 0s;
+        set beresp.grace = 15s;
+    }
+
+    # Deliver the content
+    return(deliver);
+}
+
+sub vcl_synth {
+    if (resp.status == 750) {
+        set resp.http.Location = req.http.X-VC-Redirect;
+        set resp.status = 302;
+        return(deliver);
+    }
+}
+
+sub vcl_pipe {
+     if (req.http.upgrade) {
+         set bereq.http.upgrade = req.http.upgrade;
+     }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/bigfiles.vcl
@@ -1,1 +1,11 @@
+# bigfiles.vcl -- Bypass Cache for Large Files
 
+sub vcl_backend_response {
+    # Bypass cache for files > 10 MB
+    if (std.integer(beresp.http.Content-Length, 0) > 10485760) {
+        set beresp.uncacheable = true;
+        set beresp.ttl = 120s;
+        return (deliver);
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/bigfiles_pipe.vcl
@@ -1,1 +1,23 @@
+# bigfiles_pipe.vcl -- Pipe for Large Files
 
+# You must have "import std;" in your main vcl:
+# import std;
+
+# NOTE: Using restart and pipe is a workaround for a bug in varnish prior to
+# 3.0.3.  In 3.0.3+, hit_for_pass in vcl_fetch is all that is necessary.
+
+sub vcl_recv {
+    if (req.http.X-Pipe-Big-File && req.restarts > 0) {
+        unset req.http.X-Pipe-Big-File;
+        return (pipe);
+    }
+}
+
+sub vcl_fetch {
+    # Bypass cache for files > 10 MB
+    if (std.integer(beresp.http.Content-Length, 0) > 10485760) {
+        set req.http.X-Pipe-Big-File = "Yes";
+        return (restart);
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/cloudflare.vcl
@@ -1,1 +1,41 @@
+# cloudflare.vcl -- CloudFlare HTTP Headers
 
+# This should generally be loaded first to make sure that the headers
+# get set appropriately for all requests.
+
+acl official_cloudflare {
+    # https://www.cloudflare.com/ips-v4
+    "204.93.240.0"/24;
+    "204.93.177.0"/24;
+    "199.27.128.0"/21;
+    "173.245.48.0"/20;
+    "103.21.244.0"/22;
+    "103.22.200.0"/22;
+    "103.31.4.0"/22;
+    "141.101.64.0"/18;
+    "108.162.192.0"/18;
+    "190.93.240.0"/20;
+    "188.114.96.0"/20;
+    "197.234.240.0"/22;
+    "198.41.128.0"/17;
+    "162.158.0.0"/15;
+    # https://www.cloudflare.com/ips-v6
+    "2400:cb00::"/32;
+    "2606:4700::"/32;
+    "2803:f800::"/32;
+    "2405:b500::"/32;
+    "2405:8100::"/32;
+}
+
+sub vcl_recv {
+    # Set the CF-Connecting-IP header
+    # If the client.ip is trusted, we leave the header alone if present.
+    if (req.http.CF-Connecting-IP) {
+        if (client.ip !~ official_cloudflare && client.ip !~ cloudflare) {
+            set req.http.CF-Connecting-IP = client.ip;
+        }
+    } else {
+        set req.http.CF-Connecting-IP = client.ip;
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/mobile_cache.vcl
@@ -1,1 +1,20 @@
+# mobile_cache.vcl -- Separate cache for mobile clients
 
+# If the User-Agent looks like a mobile device, then we add the string
+# "mobile" to the hash_data.  This results in mobile devices having
+# a separate cache from non-mobile devices.
+#
+# Note that if the backend does anything more sophisticated than having
+# a "desktop" and a "mobile" version of pages (for example serving one
+# page to iPhones and another to Androids), this will not be desirable.
+# Also if the backend disagrees with this logic as far as what is a
+# "mobile" User-Agent, then we may save the wrong version of pages in
+# the cache.
+
+sub vcl_hash {
+    # General User-Agent list (anything that remotely looks like a mobile device)
+    if (req.http.User-Agent ~ "(?i)ipod|android|blackberry|phone|mobile|kindle|silk|fennec|tablet|webos|palm|windows ce|nokia|philips|samsung|sanyo|sony|panasonic|ericsson|alcatel|series60|series40|opera mini|opera mobi|au-mic|audiovox|avantgo|blazer|danger|docomo|epoc|ericy|i-mode|ipaq|midp-|mot-|netfront|nitro|pocket|portalmmm|rover|sie-|symbian|cldc-|j2me|up\.browser|up\.link|vodafone|wap1\.|wap2\.") {
+        hash_data("mobile");
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/mobile_pass.vcl
@@ -1,1 +1,22 @@
+# mobile_pass.vcl -- Mobile pass-through support for Varnish
 
+# This simply bypasses the cache for anything that looks like a mobile
+# (or tablet) device.
+# Also passes through some requests that are specifically for the WordPress
+# Jetpack mobile plugin.
+
+sub vcl_recv {
+    # Rules specifically for the Jetpack Mobile module
+    if (req.url ~ "\?(.*&)?(ak_action|app-download)=") {
+        return(pass);
+    }
+    if (req.http.Cookie ~ "(^|;\s*)akm_mobile=") {
+        return(pass);
+    }
+
+    # General User-Agent blacklist (anything that remotely looks like a mobile device)
+    if (req.http.User-Agent ~ "(?i)ipod|android|blackberry|phone|mobile|kindle|silk|fennec|tablet|webos|palm|windows ce|nokia|philips|samsung|sanyo|sony|panasonic|ericsson|alcatel|series60|series40|opera mini|opera mobi|au-mic|audiovox|avantgo|blazer|danger|docomo|epoc|ericy|i-mode|ipaq|midp-|mot-|netfront|nitro|pocket|portalmmm|rover|sie-|symbian|cldc-|j2me|up\.browser|up\.link|vodafone|wap1\.|wap2\.") {
+        return(pass);
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/purge.vcl
@@ -1,1 +1,106 @@
+# purge.vcl -- Cache Purge Library for Varnish
 
+# Regex purging
+# Treat the request URL as a regular expression.
+sub purge_regex {
+    ban("obj.http.X-VC-Req-URL ~ " + req.url + " && obj.http.X-VC-Req-Host == " + req.http.host);
+}
+
+# Exact purging
+# Use the exact request URL (including any query params)
+sub purge_exact {
+    ban("obj.http.X-VC-Req-URL == " + req.url + " && obj.http.X-VC-Req-Host == " + req.http.host);
+}
+
+# Page purging (default)
+# Use the exact request URL, but ignore any query params
+sub purge_page {
+    set req.url = regsub(req.url, "\?.*$", "");
+    ban("obj.http.X-VC-Req-URL-Base == " + req.url + " && obj.http.X-VC-Req-Host == " + req.http.host);
+}
+
+# The purge behavior can be controlled with the X-VC-Purge-Method header.
+#
+# Setting the X-VC-Purge-Method header to contain "regex" or "exact" will use
+# those respective behaviors.  Any other value for the X-Purge header will
+# use the default ("page") behavior.
+#
+# The X-VC-Purge-Method header is not case-sensitive.
+#
+# If no X-VC-Purge-Method header is set, the request url is inspected to attempt
+# a best guess as to what purge behavior is expected.  This should work for
+# most cases, although if you want to guarantee some behavior you should
+# always set the X-VC-Purge-Method header.
+
+sub vcl_recv {
+    set req.http.X-VC-My-Purge-Key = "ff93c3cb929cee86901c7eefc8088e9511c005492c6502a930360c02221cf8f4";
+    if (req.method == "PURGE") {
+        if (req.http.X-VC-Purge-Key == req.http.X-VC-My-Purge-Key) {
+            set req.http.X-VC-Purge-Key-Auth = "true";
+        } else {
+            set req.http.X-VC-Purge-Key-Auth = "false";
+        }
+        if (client.ip !~ purge && req.http.X-VC-Purge-Key-Auth != "true") {
+            return (synth(405, "Not allowed from " + client.ip));
+        }
+
+        if (req.http.X-VC-Purge-Method) {
+            if (req.http.X-VC-Purge-Method ~ "(?i)regex") {
+                call purge_regex;
+            } elsif (req.http.X-VC-Purge-Method ~ "(?i)exact") {
+                call purge_exact;
+            } else {
+                call purge_page;
+            }
+        } else {
+            # No X-VC-Purge-Method header was specified.
+            # Do our best to figure out which one they want.
+            if (req.url ~ "\.\*" || req.url ~ "^\^" || req.url ~ "\$$" || req.url ~ "\\[.?*+^$|()]") {
+                call purge_regex;
+            } elsif (req.url ~ "\?") {
+                call purge_exact;
+            } else {
+                call purge_page;
+            }
+        }
+        return (synth(200,"Purged " + req.url + " " + req.http.host));
+    }
+    unset req.http.X-VC-My-Purge-Key;
+    # unset Varnish Caching custom headers from client
+    unset req.http.X-VC-Cacheable;
+    unset req.http.X-VC-Debug;
+}
+
+sub vcl_backend_response {
+    set beresp.http.X-VC-Req-Host = bereq.http.host;
+    set beresp.http.X-VC-Req-URL = bereq.url;
+    set beresp.http.X-VC-Req-URL-Base = regsub(bereq.url, "\?.*$", "");
+}
+
+sub vcl_deliver {
+    unset resp.http.X-VC-Req-Host;
+    unset resp.http.X-VC-Req-URL;
+    unset resp.http.X-VC-Req-URL-Base;
+
+    if (obj.hits > 0) {
+        set resp.http.X-VC-Cache = "HIT";
+    } else {
+        set resp.http.X-VC-Cache = "MISS";
+    }
+
+    if (req.http.X-VC-Debug ~ "true" || resp.http.X-VC-Debug ~ "true") {
+        set resp.http.X-VC-Hash = req.http.hash;
+        if (req.http.X-VC-DebugMessage) {
+            set resp.http.X-VC-DebugMessage = req.http.X-VC-DebugMessage;
+        }
+    } else {
+        unset resp.http.X-VC-Enabled;
+        unset resp.http.X-VC-Cache;
+        unset resp.http.X-VC-Debug;
+        unset resp.http.X-VC-DebugMessage;
+        unset resp.http.X-VC-Cacheable;
+        unset resp.http.X-VC-Purge-Key-Auth;
+        unset resp.http.X-VC-TTL;
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/static.vcl
@@ -1,1 +1,36 @@
+# static.vcl -- Static File Caching for Varnish
 
+sub vcl_recv {
+    if (req.method ~ "^(GET|HEAD)$" && req.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)(\?.*)?$") {
+        # if you use a subdomain for admin section, do not cache it
+        #if (req.http.host ~ "admin.yourdomain.com") {
+        #    set req.http.X-VC-Cacheable = "NO:Admin domain";
+        #    return(pass);
+        #}
+        # enable this if you want
+        #if (req.url ~ "debug") {
+        #    set req.http.X-VC-Debug = "true";
+        #}
+        # enable this if you need it
+        #if (req.url ~ "nocache") {
+        #    set req.http.X-VC-Cacheable = "NO:Not cacheable, nocache in URL";
+        #    return(pass);
+        #}
+        set req.url = regsub(req.url, "\?.*$", "");
+        # unset cookie only if no http auth
+        if (!req.http.Authorization) {
+            unset req.http.Cookie;
+        }
+        return(hash);
+    }
+}
+
+sub vcl_backend_response {
+    if (bereq.method ~ "^(GET|HEAD)$" && bereq.url ~ "\.(jpg|jpeg|gif|png|ico|css|zip|tgz|gz|rar|bz2|pdf|txt|tar|wav|bmp|rtf|js|flv|swf|html|htm)$") {
+        # overwrite ttl with X-VC-TTL
+        set beresp.http.X-VC-TTL = 24*60*60;
+        set beresp.ttl = std.duration(beresp.http.X-VC-TTL + "s", 0s);
+        set beresp.http.X-VC-Cacheable = "YES:Is cacheable, ttl: " + beresp.ttl;
+    }
+}
+

--- /dev/null
+++ b/varnish-conf/v5/lib/xforward.vcl
@@ -1,1 +1,17 @@
+# xforward.vcl -- X-Forwarded-For HTTP Headers
 
+# This should generally be loaded first to make sure that the headers
+# get set appropriately for all requests.  Note that when using this
+# you MUST NOT fall through to the VCL default handler for vcl_recv
+# since that will run the code again, resulting in the client.ip
+# being added twice.
+
+sub vcl_recv {
+    if (req.http.X-Forwarded-For) {
+        set req.http.X-Forwarded-For =
+            req.http.X-Forwarded-For + ", " + client.ip;
+    } else {
+        set req.http.X-Forwarded-For = client.ip;
+    }
+}
+

--- a/vcaching.php
+++ b/vcaching.php
@@ -1,16 +1,16 @@
 <?php
 /*
-Plugin Name: VCaching
+Plugin Name: Varnish Caching
 Plugin URI: http://wordpress.org/extend/plugins/vcaching/
 Description: WordPress Varnish Cache integration.
-Version: 1.4
+Version: 1.6.6
 Author: Razvan Stanga
 Author URI: http://git.razvi.ro/
 License: http://www.apache.org/licenses/LICENSE-2.0
 Text Domain: vcaching
 Network: true
 
-Copyright 2015: Razvan Stanga (email: varnish-caching@razvi.ro)
+Copyright 2017: Razvan Stanga (email: varnish-caching@razvi.ro)
 */
 
 class VCaching {
@@ -29,7 +29,14 @@
     protected $override = 0;
     protected $customFields = array();
     protected $noticeMessage = '';
+    protected $truncateNotice = false;
+    protected $truncateNoticeShown = false;
+    protected $truncateCount = 0;
     protected $debug = 0;
+    protected $vclGeneratorTab = true;
+    protected $purgeOnMenuSave = false;
+    protected $currentTab;
+    protected $useSsl = false;
 
     public function __construct()
     {
@@ -39,6 +46,11 @@
         $this->blogId = $blog_id;
         add_action('init', array(&$this, 'init'));
         add_action('activity_box_end', array($this, 'varnish_glance'), 100);
+    }
+
+    public function init()
+    {
+        load_plugin_textdomain($this->plugin, false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
 
         $this->customFields = array(
             array(
@@ -51,18 +63,14 @@
             )
         );
 
-        $this->setupIpsToHosts();
+        $this->setup_ips_to_hosts();
         $this->purgeKey = ($purgeKey = trim(get_option($this->prefix . 'purge_key'))) ? $purgeKey : null;
         $this->admin_menu();
-    }
-
-    public function init()
-    {
-        load_plugin_textdomain($this->plugin, false, plugin_basename( dirname( __FILE__ ) ) . '/languages' );
 
         add_action('wp', array($this, 'buffer_start'), 1000000);
         add_action('shutdown', array($this, 'buffer_end'), 1000000);
 
+        $this->truncateNotice = get_option($this->prefix . 'truncate_notice');
         $this->debug = get_option($this->prefix . 'debug');
 
         // send headers to varnish
@@ -73,37 +81,63 @@
         add_action('wp_logout', array($this, 'wp_logout'), 1000000);
 
         // register events to purge post
-        foreach ($this->getRegisterEvents() as $event) {
+        foreach ($this->get_register_events() as $event) {
             add_action($event, array($this, 'purge_post'), 10, 2);
         }
 
-        // purge all cache
-        if (isset($_GET[$this->getParam]) && check_admin_referer($this->plugin)) {
-            if (get_option('permalink_structure') == '' && current_user_can('manage_options')) {
-                add_action('admin_notices' , array($this, 'pretty_permalinks_message'));
-            }
-            if ($this->varnishIp == null) {
-                add_action('admin_notices' , array($this, 'purge_message_no_ips'));
-            } else {
-                $this->purgeCache();
-            }
-        }
-
+        // purge all cache from admin bar
         if ($this->check_if_purgeable()) {
             add_action('admin_bar_menu', array($this, 'purge_varnish_cache_all_adminbar'), 100);
-        }
+            if (isset($_GET[$this->getParam]) && check_admin_referer($this->plugin)) {
+                if (get_option('permalink_structure') == '' && current_user_can('manage_options')) {
+                    add_action('admin_notices' , array($this, 'pretty_permalinks_message'));
+                }
+                if ($this->varnishIp == null) {
+                    add_action('admin_notices' , array($this, 'purge_message_no_ips'));
+                } else {
+                    $this->purge_cache();
+                }
+            }
+        }
+
+        // purge post/page cache from post/page actions
+        if ($this->check_if_purgeable()) {
+            if(!session_id()) {
+                session_start();
+            }
+            add_filter('post_row_actions', array(
+                &$this,
+                'post_row_actions'
+            ), 0, 2);
+            add_filter('page_row_actions', array(
+                &$this,
+                'page_row_actions'
+            ), 0, 2);
+            if (isset($_GET['action']) && isset($_GET['post_id']) && ($_GET['action'] == 'purge_post' || $_GET['action'] == 'purge_page') && check_admin_referer($this->plugin)) {
+                $this->purge_post($_GET['post_id']);
+                $_SESSION['vcaching_note'] = $this->noticeMessage;
+                $referer = str_replace('purge_varnish_cache=1', '', wp_get_referer());
+                wp_redirect($referer . (strpos($referer, '?') ? '&' : '?') . 'vcaching_note=' . $_GET['action']);
+            }
+            if (isset($_GET['vcaching_note']) && ($_GET['vcaching_note'] == 'purge_post' || $_GET['vcaching_note'] == 'purge_page')) {
+                add_action('admin_notices' , array($this, 'purge_post_page'));
+            }
+        }
+
         if ($this->override = get_option($this->prefix . 'override')) {
-            add_action('admin_menu', array($this, 'createCustomFields'));
-            add_action('save_post', array($this, 'saveCustomFields' ), 1, 2);
+            add_action('admin_menu', array($this, 'create_custom_fields'));
+            add_action('save_post', array($this, 'save_custom_fields' ), 1, 2);
             add_action('wp_enqueue_scripts', array($this, 'override_ttl'), 1000);
         }
         add_action('wp_enqueue_scripts', array($this, 'override_homepage_ttl'), 1000);
 
         // console purge
-        if (isset($_POST['varnish_caching_purge_url'])) {
-            $this->purgeUrl(home_url() . $_POST['varnish_caching_purge_url']);
+        if ($this->check_if_purgeable() && isset($_POST['varnish_caching_purge_url'])) {
+            $this->purge_url(home_url() . $_POST['varnish_caching_purge_url']);
             add_action('admin_notices' , array($this, 'purge_message'));
         }
+        $this->currentTab = isset($_GET['tab']) ? $_GET['tab'] : 'options';
+        $this->useSsl = get_option($this->prefix . 'ssl');
     }
 
     public function override_ttl($post)
@@ -137,17 +171,22 @@
 
     public function buffer_end()
     {
-        ob_end_flush();
-    }
-
-    protected function setupIpsToHosts()
+        if (ob_get_level() > 0) {
+            ob_end_flush();
+        }
+    }
+
+    protected function setup_ips_to_hosts()
     {
         $this->varnishIp = get_option($this->prefix . 'ips');
         $this->varnishHost = get_option($this->prefix . 'hosts');
         $this->dynamicHost = get_option($this->prefix . 'dynamic_host');
         $this->statsJsons = get_option($this->prefix . 'stats_json_file');
+        $this->purgeOnMenuSave = get_option($this->prefix . 'purge_menu_save');
         $varnishIp = explode(',', $this->varnishIp);
+        $varnishIp = apply_filters('vcaching_varnish_ips', $varnishIp);
         $varnishHost = explode(',', $this->varnishHost);
+        $varnishHost = apply_filters('vcaching_varnish_hosts', $varnishHost);
         $statsJsons = explode(',', $this->statsJsons);
         foreach ($varnishIp as $key => $ip) {
             $this->ipsToHosts[] = array(
@@ -158,16 +197,16 @@
         }
     }
 
-    public function createCustomFields()
+    public function create_custom_fields()
     {
         if (function_exists('add_meta_box')) {
             foreach ($this->postTypes as $postType) {
-                add_meta_box($this->plugin, 'Varnish', array($this, 'displayCustomFields'), $postType, 'side', 'high');
-            }
-        }
-    }
-
-    public function saveCustomFields($post_id, $post)
+                add_meta_box($this->plugin, __('Varnish Caching', $this->plugin), array($this, 'display_custom_fields'), $postType, 'side', 'high');
+            }
+        }
+    }
+
+    public function save_custom_fields($post_id, $post)
     {
         if (!isset($_POST['vc-custom-fields_wpnonce']) || !wp_verify_nonce($_POST['vc-custom-fields_wpnonce'], 'vc-custom-fields'))
             return;
@@ -186,58 +225,56 @@
         }
     }
 
-    public function displayCustomFields()
+    public function display_custom_fields()
     {
         global $post;
-        ?>
-            <?php
-            wp_nonce_field('vc-custom-fields', 'vc-custom-fields_wpnonce', false, true);
-            foreach ($this->customFields as $customField) {
-                // Check scope
-                $scope = $customField['scope'];
+        wp_nonce_field('vc-custom-fields', 'vc-custom-fields_wpnonce', false, true);
+        foreach ($this->customFields as $customField) {
+            // Check scope
+            $scope = $customField['scope'];
+            $output = false;
+            foreach ($scope as $scopeItem) {
+                switch ($scopeItem) {
+                    default: {
+                        if ($post->post_type == $scopeItem)
+                            $output = true;
+                        break;
+                    }
+                }
+                if ($output) break;
+            }
+            // Check capability
+            if (!current_user_can($customField['capability'], $post->ID))
                 $output = false;
-                foreach ($scope as $scopeItem) {
-                    switch ($scopeItem) {
-                        default: {
-                            if ($post->post_type == $scopeItem)
-                                $output = true;
-                            break;
-                        }
+            // Output if allowed
+            if ($output) {
+                switch ($customField['type']) {
+                    case "checkbox": {
+                        // Checkbox
+                        echo '<p><strong>' . $customField['title'] . '</strong></p>';
+                        echo '<label class="screen-reader-text" for="' . $this->prefix . $customField['name'] . '">' . $customField['title'] . '</label>';
+                        echo '<p><input type="checkbox" name="' . $this->prefix . $customField['name'] . '" id="' . $this->prefix . $customField['name'] . '" value="yes"';
+                        if (get_post_meta($post->ID, $this->prefix . $customField['name'], true ) == "yes")
+                            echo ' checked="checked"';
+                        echo '" style="width: auto;" /></p>';
+                        break;
                     }
-                    if ($output) break;
-                }
-                // Check capability
-                if (!current_user_can($customField['capability'], $post->ID))
-                    $output = false;
-                // Output if allowed
-                if ($output) { ?>
-                        <?php
-                        switch ($customField['type']) {
-                            case "checkbox": {
-                                // Checkbox
-                                echo '<p><strong>' . $customField['title'] . '</strong></p>';
-                                echo '<label class="screen-reader-text" for="' . $this->prefix . $customField['name'] . '">' . $customField['title'] . '</label>';
-                                echo '<p><input type="checkbox" name="' . $this->prefix . $customField['name'] . '" id="' . $this->prefix . $customField['name'] . '" value="yes"';
-                                if (get_post_meta( $post->ID, $this->prefix . $customField['name'], true ) == "yes")
-                                    echo ' checked="checked"';
-                                echo '" style="width: auto;" /></p>';
-                                break;
-                            }
-                            default: {
-                                // Plain text field
-                                echo '<p><b>' . $customField['title'] . '</b></p>';
-                                $value = get_post_meta($post->ID, $this->prefix . $customField[ 'name' ], true);
-                                $default_ttl = get_option($this->prefix . 'ttl');
-                                echo '<p><input type="text" name="' . $this->prefix . $customField['name'] . '" id="' . $this->prefix . $customField['name'] . '" value="' . $value . '" /></p>';
-                                break;
-                            }
-                        }
-                        ?>
-                        <?php if ($customField['description']) echo '<p>' . sprintf($customField['description'], $default_ttl) . '</p>'; ?>
-                <?php
-                }
-            } ?>
-        <?php
+                    default: {
+                        // Plain text field
+                        echo '<p><strong>' . $customField['title'] . '</strong></p>';
+                        $value = get_post_meta($post->ID, $this->prefix . $customField[ 'name' ], true);
+                        echo '<p><input type="text" name="' . $this->prefix . $customField['name'] . '" id="' . $this->prefix . $customField['name'] . '" value="' . $value . '" /></p>';
+                        break;
+                    }
+                }
+            } else {
+                echo '<p><strong>' . $customField['title'] . '</strong></p>';
+                $value = get_post_meta($post->ID, $this->prefix . $customField[ 'name' ], true);
+                echo '<p><input type="text" name="' . $this->prefix . $customField['name'] . '" id="' . $this->prefix . $customField['name'] . '" value="' . $value . '" disabled /></p>';
+            }
+            $default_ttl = get_option($this->prefix . 'ttl');
+            if ($customField['description']) echo '<p>' . sprintf($customField['description'], $default_ttl) . '</p>';
+        }
     }
 
     public function check_if_purgeable()
@@ -247,12 +284,20 @@
 
     public function purge_message()
     {
-        echo '<div id="message" class="updated fade"><p><strong>' . __('Varnish message:', $this->plugin) . '</strong><br />' . $this->noticeMessage . '</p></div>';
+        echo '<div id="message" class="updated fade"><p><strong>' . __('Varnish Caching', $this->plugin) . '</strong><br /><br />' . $this->noticeMessage . '</p></div>';
     }
 
     public function purge_message_no_ips()
     {
         echo '<div id="message" class="error fade"><p><strong>' . __('Please set the IPs for Varnish!', $this->plugin) . '</strong></p></div>';
+    }
+
+    public function purge_post_page()
+    {
+        if (isset($_SESSION['vcaching_note'])) {
+            echo '<div id="message" class="updated fade"><p><strong>' . __('Varnish Caching', $this->plugin) . '</strong><br /><br />' . $_SESSION['vcaching_note'] . '</p></div>';
+            unset ($_SESSION['vcaching_note']);
+        }
     }
 
     public function pretty_permalinks_message()
@@ -277,6 +322,7 @@
         $url = wp_nonce_url(admin_url('?' . $this->getParam), $this->plugin);
         $button = '';
         $nopermission = '';
+        $intro = '';
         if ($this->varnishIp == null) {
             $intro .= sprintf(__('Please setup Varnish IPs to be able to use <a href="%1$s">Varnish Caching</a>.', $this->plugin), 'http://wordpress.org/plugins/varnish-caching/');
         } else {
@@ -292,10 +338,11 @@
         } else {
             $text = $intro . ' ' . $nopermission;
         }
-        echo '<p class="varnish-galce">' . $text . '</p>';
-    }
-
-    protected function getRegisterEvents() {
+        echo '<p class="varnish-glance">' . $text . '</p>';
+    }
+
+    protected function get_register_events()
+    {
         $actions = array(
             'save_post',
             'deleted_post',
@@ -307,22 +354,28 @@
         return apply_filters('vcaching_events', $actions);
     }
 
-    public function purgeCache() {
+    public function purge_cache()
+    {
         $purgeUrls = array_unique($this->purgeUrls);
 
         if (empty($purgeUrls)) {
-            if (isset($_GET[$this->getParam]) && current_user_can('manage_options') && check_admin_referer($this->plugin)) {
-                $this->purgeUrl(home_url() .'/?vc-regex');
+            if (isset($_GET[$this->getParam]) && $this->check_if_purgeable() && check_admin_referer($this->plugin)) {
+                $this->purge_url(home_url() .'/?vc-regex');
             }
         } else {
             foreach($purgeUrls as $url) {
-                $this->purgeUrl($url);
-            }
+                $this->purge_url($url);
+            }
+        }
+        if ($this->truncateNotice && $this->truncateNoticeShown == false) {
+            $this->truncateNoticeShown = true;
+            $this->noticeMessage .= '<br />' . __('Truncate message activated. Showing only first 3 messages.', $this->plugin);
         }
         add_action('admin_notices' , array($this, 'purge_message'));
     }
 
-    protected function purgeUrl($url) {
+    protected function purge_url($url)
+    {
         $p = parse_url($url);
 
         if (isset($p['query']) && ($p['query'] == 'vc-regex')) {
@@ -339,7 +392,7 @@
             $path = '';
         }
 
-        $schema = apply_filters('vcaching_schema', 'http://');
+        $schema = apply_filters('vcaching_schema', $this->useSsl ? 'https://' : 'http://');
 
         foreach ($this->ipsToHosts as $key => $ipToHost) {
             $purgeme = $schema . $ipToHost['ip'] . $path . $pregex;
@@ -347,7 +400,7 @@
             if (!is_null($this->purgeKey)) {
                 $headers['X-VC-Purge-Key'] = $this->purgeKey;
             }
-            $response = wp_remote_request($purgeme, array('method' => 'PURGE', 'headers' => $headers));
+            $response = wp_remote_request($purgeme, array('method' => 'PURGE', 'headers' => $headers, "sslverify" => false));
             if ($response instanceof WP_Error) {
                 foreach ($response->errors as $error => $errors) {
                     $this->noticeMessage .= '<br />Error ' . $error . '<br />';
@@ -356,24 +409,31 @@
                     }
                 }
             } else {
-                $this->noticeMessage .= '<br />' . __('Trying to purge URL :', $this->plugin) . $purgeme;
-                preg_match("/<title>(.*)<\/title>/i", $response['body'], $matches);
-                $this->noticeMessage .= ' => <br /> ' . isset($matches[1]) ? " => " . $matches[1] : $response['body'];
-                $this->noticeMessage .= '<br />';
-                if ($this->debug) {
-                    $this->noticeMessage .= $response['body'] . "<br />";
-                }
-            }
-        }
-
-        do_action('after_purge_url', $url, $purgeme);
-    }
-
-    public function purge_post($postId)
-    {
+                if ($this->truncateNotice && $this->truncateCount <= 2 || $this->truncateNotice == false) {
+                    $this->noticeMessage .= '' . __('Trying to purge URL : ', $this->plugin) . $purgeme;
+                    preg_match("/<title>(.*)<\/title>/i", $response['body'], $matches);
+                    $this->noticeMessage .= ' => <br /> ' . isset($matches[1]) ? " => " . $matches[1] : $response['body'];
+                    $this->noticeMessage .= '<br />';
+                    if ($this->debug) {
+                        $this->noticeMessage .= $response['body'] . "<br />";
+                    }
+                }
+                $this->truncateCount++;
+            }
+        }
+
+        do_action('vcaching_after_purge_url', $url, $purgeme);
+    }
+
+    public function purge_post($postId, $post=null)
+    {
+        // Do not purge menu items
+        if (get_post_type($post) == 'nav_menu_item' && $this->purgeOnMenuSave == false) {
+            return;
+        }
+
         // If this is a valid post we want to purge the post, the home page and any associated tags & cats
         // If not, purge everything on the site.
-
         $validPostStatus = array('publish', 'trash');
         $thisPostStatus  = get_post_status($postId);
 
@@ -388,26 +448,26 @@
             $categories = get_the_category($postId);
             if ($categories) {
                 foreach ($categories as $cat) {
-                    array_push($listofurls, get_category_link( $cat->term_id));
+                    array_push($listofurls, get_category_link($cat->term_id));
                 }
             }
             // Tag purge based on Donnacha's work in WP Super Cache
             $tags = get_the_tags($postId);
             if ($tags) {
                 foreach ($tags as $tag) {
-                    array_push($listofurls, get_tag_link( $tag->term_id));
+                    array_push($listofurls, get_tag_link($tag->term_id));
                 }
             }
 
             // Author URL
             array_push($listofurls,
-                get_author_posts_url(get_post_field( 'post_author', $postId)),
-                get_author_feed_link(get_post_field( 'post_author', $postId))
+                get_author_posts_url(get_post_field('post_author', $postId)),
+                get_author_feed_link(get_post_field('post_author', $postId))
             );
 
             // Archives and their feeds
             $archiveurls = array();
-            if ( get_post_type_archive_link(get_post_type($postId)) == true) {
+            if (get_post_type_archive_link(get_post_type($postId)) == true) {
                 array_push($listofurls,
                     get_post_type_archive_link( get_post_type($postId)),
                     get_post_type_archive_feed_link( get_post_type($postId))
@@ -429,8 +489,13 @@
 
             // Home Page and (if used) posts page
             array_push($listofurls, home_url('/'));
-            if ( get_option('show_on_front') == 'page') {
+            if (get_option('show_on_front') == 'page') {
                 array_push($listofurls, get_permalink(get_option('page_for_posts')));
+            }
+
+            // If Automattic's AMP is installed, add AMP permalink
+            if (function_exists('amp_get_permalink')) {
+                array_push($listofurls, amp_get_permalink($postId));
             }
 
             // Now flush all the URLs we've collected
@@ -442,7 +507,7 @@
         // @param array $purgeUrls the urls (paths) to be purged
         // @param int $postId the id of the new/edited post
         $this->purgeUrls = apply_filters('vcaching_purge_urls', $this->purgeUrls, $postId);
-        $this->purgeCache();
+        $this->purge_cache();
     }
 
     public function send_headers()
@@ -457,7 +522,7 @@
                 $ttl = get_option($this->prefix . 'ttl');
             }
             Header('X-VC-TTL: ' . $ttl, true);
-            if ($debug = get_option($this->prefix . 'debug')) {
+            if ($this->debug) {
                 Header('X-VC-Debug: true', true);
             }
         } else {
@@ -482,13 +547,15 @@
         add_action('admin_menu', array($this, 'add_menu_item'));
         add_action('admin_init', array($this, 'options_page_fields'));
         add_action('admin_init', array($this, 'console_page_fields'));
-        add_action('admin_init', array($this, 'conf_page_fields'));
+        if ($this->vclGeneratorTab) {
+            add_action('admin_init', array($this, 'conf_page_fields'));
+        }
     }
 
     public function add_menu_item()
     {
         if ($this->check_if_purgeable()) {
-            add_menu_page(__('Varnish Caching', $this->plugin), __('Varnish Caching', $this->plugin), 'manage_options', $this->plugin . '-plugin', array($this, 'settings_page'), home_url() . '/wp-content/plugins/' . $this->plugin . '/icon.png', 99);
+            add_menu_page(__('Varnish Caching', $this->plugin), __('Varnish Caching', $this->plugin), 'manage_options', $this->plugin . '-plugin', array($this, 'settings_page'), plugins_url() . '/' . $this->plugin . '/icon.png', 99);
         }
     }
 
@@ -499,15 +566,17 @@
         <h1><?=__('Varnish Caching', $this->plugin)?></h1>
 
         <h2 class="nav-tab-wrapper">
-            <a class="nav-tab <?php if(!isset($_GET['tab']) || $_GET['tab'] == 'options'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=options"><?=__('Settings', $this->plugin)?></a>
+            <a class="nav-tab <?php if($this->currentTab == 'options'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=options"><?=__('Settings', $this->plugin)?></a>
             <?php if ($this->check_if_purgeable()): ?>
-                <a class="nav-tab <?php if($_GET['tab'] == 'console'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=console"><?=__('Console', $this->plugin)?></a>
+                <a class="nav-tab <?php if($this->currentTab == 'console'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=console"><?=__('Console', $this->plugin)?></a>
             <?php endif; ?>
-            <a class="nav-tab <?php if($_GET['tab'] == 'stats'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=stats"><?=__('Statistics', $this->plugin)?></a>
-            <a class="nav-tab <?php if($_GET['tab'] == 'conf'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=conf"><?=__('Varnish VCLs', $this->plugin)?></a>
+            <a class="nav-tab <?php if($this->currentTab == 'stats'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=stats"><?=__('Statistics', $this->plugin)?></a>
+            <?php if ($this->vclGeneratorTab): ?>
+                <a class="nav-tab <?php if($this->currentTab == 'conf'): ?>nav-tab-active<?php endif; ?>" href="<?php echo admin_url() ?>index.php?page=<?=$this->plugin?>-plugin&amp;tab=conf"><?=__('VCLs Generator', $this->plugin)?></a>
+            <?php endif; ?>
         </h2>
 
-        <?php if(!isset($_GET['tab']) || $_GET['tab'] == 'options'): ?>
+        <?php if($this->currentTab == 'options'): ?>
             <form method="post" action="options.php">
                 <?php
                     settings_fields($this->prefix . 'options');
@@ -527,7 +596,7 @@
                     jQuery('#' + id).val(outStr);
                 }
             </script>
-        <?php elseif($_GET['tab'] == 'console'): ?>
+        <?php elseif($this->currentTab == 'console'): ?>
             <form method="post" action="index.php?page=<?=$this->plugin?>-plugin&amp;tab=console">
                 <?php
                     settings_fields($this->prefix . 'console');
@@ -535,7 +604,7 @@
                     submit_button(__('Purge', $this->plugin));
                 ?>
             </form>
-        <?php elseif($_GET['tab'] == 'stats'): ?>
+        <?php elseif($this->currentTab == 'stats'): ?>
             <h2><?= __('Statistics', $this->plugin) ?></h2>
 
             <div class="wrap">
@@ -607,7 +676,7 @@
                     </script>
                 <?php endif; ?>
             </div>
-        <?php elseif($_GET['tab'] == 'conf'): ?>
+        <?php elseif($this->currentTab == 'conf'): ?>
             <form method="post" action="options.php">
                 <?php
                     settings_fields($this->prefix . 'conf');
@@ -615,13 +684,22 @@
                     submit_button();
                 ?>
             </form>
-            <form method="post" action="index.php?page=<?=$this->plugin?>-plugin&amp;tab=conf">
+            <?php if (class_exists('ZipArchive')): ?>
+                <form method="post" action="index.php?page=<?=$this->plugin?>-plugin&amp;tab=conf">
+                    <?php
+                        settings_fields($this->prefix . 'download');
+                        do_settings_sections($this->prefix . 'download');
+                        submit_button(__('Download'));
+                    ?>
+                </form>
+            <?php else: ?>
                 <?php
-                    settings_fields($this->prefix . 'download');
-                    do_settings_sections($this->prefix . 'download');
-                    submit_button(__('Download'));
+                    do_settings_sections($this->prefix . 'download_error');
+                    echo sprintf(__('You server\'s PHP configuration is missing the ZIP extension (ZipArchive class is used by VCaching). Please enable the ZIP extension. For more information click <a href="%1$s" target="_blank">here</a>.', $this->plugin), 'http://www.php.net/manual/en/book.zip.php');
+                    echo "<br />";
+                    echo __('If you cannot enable the ZIP extension, please use the provided Varnish Cache configuration files located in /wp-content/plugins/vcaching/varnish-conf folder', $this->plugin);
                 ?>
-            </form>
+            <?php endif; ?>
         <?php endif; ?>
         </div>
     <?php
@@ -643,9 +721,12 @@
         add_settings_field($this->prefix . "purge_key", __("Purge key", $this->plugin), array($this, $this->prefix . "purge_key"), $this->prefix . 'options', $this->prefix . 'options');
         add_settings_field($this->prefix . "cookie", __("Logged in cookie", $this->plugin), array($this, $this->prefix . "cookie"), $this->prefix . 'options', $this->prefix . 'options');
         add_settings_field($this->prefix . "stats_json_file", __("Statistics JSONs", $this->plugin), array($this, $this->prefix . "stats_json_file"), $this->prefix . 'options', $this->prefix . 'options');
+        add_settings_field($this->prefix . "truncate_notice", __("Truncate notice message", $this->plugin), array($this, $this->prefix . "truncate_notice"), $this->prefix . 'options', $this->prefix . 'options');
+        add_settings_field($this->prefix . "purge_menu_save", __("Purge on save menu", $this->plugin), array($this, $this->prefix . "purge_menu_save"), $this->prefix . 'options', $this->prefix . 'options');
+        add_settings_field($this->prefix . "ssl", __("Use SSL on purge requests", $this->plugin), array($this, $this->prefix . "ssl"), $this->prefix . 'options', $this->prefix . 'options');
         add_settings_field($this->prefix . "debug", __("Enable debug", $this->plugin), array($this, $this->prefix . "debug"), $this->prefix . 'options', $this->prefix . 'options');
 
-        if($_POST['option_page'] == $this->prefix . 'options') {
+        if(isset($_POST['option_page']) && $_POST['option_page'] == $this->prefix . 'options') {
             register_setting($this->prefix . 'options', $this->prefix . "enable");
             register_setting($this->prefix . 'options', $this->prefix . "ttl");
             register_setting($this->prefix . 'options', $this->prefix . "homepage_ttl");
@@ -656,6 +737,9 @@
             register_setting($this->prefix . 'options', $this->prefix . "purge_key");
             register_setting($this->prefix . 'options', $this->prefix . "cookie");
             register_setting($this->prefix . 'options', $this->prefix . "stats_json_file");
+            register_setting($this->prefix . 'options', $this->prefix . "truncate_notice");
+            register_setting($this->prefix . 'options', $this->prefix . "purge_menu_save");
+            register_setting($this->prefix . 'options', $this->prefix . "ssl");
             register_setting($this->prefix . 'options', $this->prefix . "debug");
         }
     }
@@ -723,7 +807,7 @@
     public function varnish_caching_purge_key()
     {
         ?>
-            <input type="text" name="varnish_caching_purge_key" id="varnish_caching_purge_key" size="100" value="<?php echo get_option($this->prefix . 'purge_key'); ?>" />
+            <input type="text" name="varnish_caching_purge_key" id="varnish_caching_purge_key" size="100" maxlength="64" value="<?php echo get_option($this->prefix . 'purge_key'); ?>" />
             <span onclick="generateHash(64, 0, 'varnish_caching_purge_key'); return false;" class="dashicons dashicons-image-rotate" title="<?=__('Generate')?>"></span>
             <p class="description">
                 <?=__('Key used to purge Varnish cache. It is sent to Varnish as X-VC-Purge-Key header. Use a SHA-256 hash.<br />If you can\'t use ACL\'s, use this option. You can set the `purge key` in lib/purge.vcl.<br />Search the default value ff93c3cb929cee86901c7eefc8088e9511c005492c6502a930360c02221cf8f4 to find where to replace it.', $this->plugin)?>
@@ -734,10 +818,10 @@
     public function varnish_caching_cookie()
     {
         ?>
-            <input type="text" name="varnish_caching_cookie" id="varnish_caching_cookie" size="10" maxlength="10" value="<?php echo get_option($this->prefix . 'cookie'); ?>" />
-            <span onclick="generateHash(10, 0, 'varnish_caching_cookie'); return false;" class="dashicons dashicons-image-rotate" title="<?=__('Generate')?>"></span>
+            <input type="text" name="varnish_caching_cookie" id="varnish_caching_cookie" size="100" maxlength="64" value="<?php echo get_option($this->prefix . 'cookie'); ?>" />
+            <span onclick="generateHash(64, 0, 'varnish_caching_cookie'); return false;" class="dashicons dashicons-image-rotate" title="<?=__('Generate')?>"></span>
             <p class="description">
-                <?=__('This module sets a special cookie to tell Varnish that the user is logged in. This should be a random 10 chars string [0-9a-z]. You can set the `logged in cookie` in default.vcl.<br />Search the default value <i>c005492c65</i> to find where to replace it.', $this->plugin)?>
+                <?=__('This module sets a special cookie to tell Varnish that the user is logged in. Use a SHA-256 hash. You can set the `logged in cookie` in default.vcl.<br />Search the default value <i>flxn34napje9kwbwr4bjwz5miiv9dhgj87dct4ep0x3arr7ldif73ovpxcgm88vs</i> to find where to replace it.', $this->plugin)?>
             </p>
         <?php
     }
@@ -752,6 +836,36 @@
         <?php
     }
 
+    public function varnish_caching_truncate_notice()
+    {
+        ?>
+            <input type="checkbox" name="varnish_caching_truncate_notice" value="1" <?php checked(1, get_option($this->prefix . 'truncate_notice'), true); ?> />
+            <p class="description">
+                <?=__('When using multiple Varnish Cache servers, VCaching shows too many `Trying to purge URL` messages. Check this option to truncate that message.', $this->plugin)?>
+            </p>
+        <?php
+    }
+
+    public function varnish_caching_purge_menu_save()
+    {
+        ?>
+            <input type="checkbox" name="varnish_caching_purge_menu_save" value="1" <?php checked(1, get_option($this->prefix . 'purge_menu_save'), true); ?> />
+            <p class="description">
+                <?=__('Purge menu related pages when a menu is saved.', $this->plugin)?>
+            </p>
+        <?php
+    }
+
+    public function varnish_caching_ssl()
+    {
+        ?>
+            <input type="checkbox" name="varnish_caching_ssl" value="1" <?php checked(1, get_option($this->prefix . 'ssl'), true); ?> />
+            <p class="description">
+                <?=__('Use SSL (https://) for purge requests.', $this->plugin)?>
+            </p>
+        <?php
+    }
+
     public function varnish_caching_debug()
     {
         ?>
@@ -784,17 +898,20 @@
         add_settings_field($this->prefix . "varnish_backends", __("Backends", $this->plugin), array($this, $this->prefix . "varnish_backends"), $this->prefix . 'conf', "conf");
         add_settings_field($this->prefix . "varnish_acls", __("ACLs", $this->plugin), array($this, $this->prefix . "varnish_acls"), $this->prefix . 'conf', "conf");
 
-        if($_POST['option_page'] == $this->prefix . 'conf') {
+        if(isset($_POST['option_page']) && $_POST['option_page'] == $this->prefix . 'conf') {
             register_setting($this->prefix . 'conf', $this->prefix . "varnish_backends");
             register_setting($this->prefix . 'conf', $this->prefix . "varnish_acls");
         }
 
         add_settings_section('download', __("Get configuration files", $this->plugin), null, $this->prefix . 'download');
+        if (!class_exists('ZipArchive')) {
+            add_settings_section('download_error', __("You cannot download the configuration files", $this->plugin), null, $this->prefix . 'download_error');
+        }
 
         add_settings_field($this->prefix . "varnish_version", __("Version", $this->plugin), array($this, $this->prefix . "varnish_version"), $this->prefix . 'download', "download");
 
-        if($_POST['option_page'] == $this->prefix . 'download') {
-            $version = in_array($_POST['varnish_caching_varnish_version'], array(3,4)) ? $_POST['varnish_caching_varnish_version'] : 3;
+        if(isset($_POST['option_page']) && $_POST['option_page'] == $this->prefix . 'download') {
+            $version = in_array($_POST['varnish_caching_varnish_version'], array(3,4,5)) ? $_POST['varnish_caching_varnish_version'] : 3;
             $tmpfile = tempnam("tmp", "zip");
             $zip = new ZipArchive();
             $zip->open($tmpfile, ZipArchive::OVERWRITE);
@@ -838,6 +955,7 @@
             <select name="varnish_caching_varnish_version" id="varnish_caching_varnish_version">
                 <option value="3">3</option>
                 <option value="4">4</option>
+                <option value="5">5</option>
             </select>
             <p class="description"><?=__('Varnish Cache version', $this->plugin)?></p>
         <?php
@@ -863,11 +981,11 @@
     {
         if ($file == 'default.vcl') {
             $logged_in_cookie = get_option($this->prefix . 'cookie');
-            $content = str_replace('c005492c65', $logged_in_cookie, $content);
+            $content = str_replace('flxn34napje9kwbwr4bjwz5miiv9dhgj87dct4ep0x3arr7ldif73ovpxcgm88vs', $logged_in_cookie, $content);
         } else if ($file == 'conf/backend.vcl') {
             if ($version == 3) {
                 $content = "";
-            } else if ($version == 4) {
+            } else if ($version == 4 || $version == 5) {
                 $content = "import directors;\n\n";
             }
             $backend = array();
@@ -899,7 +1017,7 @@
                 $content .= "\nsub vcl_recv {\n";
                 $content .= "\tset req.backend = backends;\n";
                 $content .= "}\n";
-            } elseif ($version == 4) {
+            } elseif ($version == 4 || $version == 5) {
                 $content .= "\nsub vcl_init {\n";
                 $content .= "\tnew backends = directors.round_robin();\n";
                 $content .= $backend[4];
@@ -928,12 +1046,32 @@
         }
         return $content;
     }
+
+    public function post_row_actions($actions, $post)
+    {
+        if ($this->check_if_purgeable()) {
+            $actions = array_merge($actions, array(
+                'vcaching_purge_post' => sprintf('<a href="%s">' . __('Purge from Varnish', $this->plugin) . '</a>', wp_nonce_url(sprintf('admin.php?page=vcaching-plugin&tab=console&action=purge_post&post_id=%d', $post->ID), $this->plugin))
+            ));
+        }
+        return $actions;
+    }
+
+    public function page_row_actions($actions, $post)
+    {
+        if ($this->check_if_purgeable()) {
+            $actions = array_merge($actions, array(
+                'vcaching_purge_page' => sprintf('<a href="%s">' . __('Purge from Varnish', $this->plugin) . '</a>', wp_nonce_url(sprintf('admin.php?page=vcaching-plugin&tab=console&action=purge_page&post_id=%d', $post->ID), $this->plugin))
+            ));
+        }
+        return $actions;
+    }
 }
 
 $vcaching = new VCaching();
 
 // WP-CLI
-if ( defined('WP_CLI') && WP_CLI ) {
+if (defined('WP_CLI') && WP_CLI) {
     include('wp-cli.php');
 }
 

comments