###################################################################################################
# Rocket-Nginx
#
# Rocket-Nginx is a NGINX configuration to speedup your WordPress
# website with the cache plugin WP-Rocket (http://wp-rocket.me)
#
# Author: Maxime Jobin
# URL: https://github.com/maximejobin/rocket-nginx
#
# Tested with WP-Rocket version: 2.8.11
# Tested with NGINX: 1.11.3 (mainline)
#
# Version 1.2
#
###################################################################################################

location / {
try_files $uri $uri/ /index.php?$args;
}

# Add debug information into header
set $rocket_debug 0;

# HTTP Strict Transport Security (to overwrite default)
set $rocket_hsts_value "";

# WP-Content directory (leave as is if you did not alter WordPress' default value)
set $rocket_wpcontent_directory "$document_root/wp-content";

# WP-Content URL (leave as is if you did not alter WordPress' default value)
set $rocket_wpcontent_url "/wp-content";

###################################################################################################
# Do not alter theses values
#
set $rocket_bypass 1;				# Should NGINX bypass WordPress and call cache file directly ?
set $rocket_encryption "";			# Is GZIP accepted by client ?
set $rocket_file "";				# Filename to use
set $rocket_is_bypassed "No";		# Header text added to check if the bypass worked or not. Header: X-Rocket-Nginx-Bypass
set $rocket_reason "";				# Reason why cache file was not used. If cache file is used, what file was used
set $rocket_https_prefix "";		# HTTPS prefix to use when cached files are using HTTPS
set $rocket_hsts 0;					# Is HSTS is off (0) by default. Will be turned on (1) if request is HTTPS

# HSTS Default value : 1 year,include subdomains.
set $rocket_hsts_value_default "max-age=31536000; includeSubDomains";

###################################################################################################
# PAGE CACHE
#

# Is GZIP accepted by client ?
if ($http_accept_encoding ~ gzip) {
	set $rocket_encryption "_gzip";
}

# Is SSL request ?
if ($https = "on") {
	set $rocket_https_prefix "-https";
	set $rocket_hsts 1;
}

# If HSTS value is not set, use default value
if ($rocket_hsts_value = "") {
	set $rocket_hsts_value "$rocket_hsts_value_default";
}

# If HSTS is disabled, unset HSTS set for Rocket-Nginx configuration
if ($rocket_hsts = "0") {
	set $rocket_hsts_value "";
}

# File/URL to return IF we must bypass WordPress
# index-mobile.html
# index-mobile-https.html
set $rocket_end "/cache/wp-rocket/$http_host/$request_uri/index$rocket_https_prefix.html$rocket_encryption";
set $rocket_url "$rocket_wpcontent_url$rocket_end";
set $rocket_file "$rocket_wpcontent_directory$rocket_end";
set $rocket_mobile_detection "$rocket_wpcontent_directory/cache/wp-rocket/$http_host/$request_uri/.mobile-active";


# Do not bypass if it's a POST request
if ($request_method = POST) {
	set $rocket_bypass 0;
	set $rocket_reason "POST request";
}

# Do not bypass if arguments are found (e.g. ?page=2)
if ($is_args) {
	set $rocket_bypass 0;
	set $rocket_reason "Arguments found";
}

# Do not bypass if the site is in maintenance mode
if (-f "$document_root/.maintenance") {
	set $rocket_bypass 0;
	set $rocket_reason "Maintenance mode";
}

# Do not bypass if one of those cookie if found
# wordpress_logged_in_[hash] : When a user is logged in, this cookie is created (we'd rather let WP-Rocket handle that)
# wp-postpass_[hash] : When a protected post requires a password, this cookie is created.
if ($http_cookie ~* "(wordpress_logged_in_|wp\-postpass_|woocommerce_items_in_cart|woocommerce_cart_hash|wptouch_switch_toogle|comment_author_|comment_author_email_)") {
	set $rocket_bypass 0;
	set $rocket_reason "Cookie";
}

if (-f "$rocket_mobile_detection") {
	set $rocket_bypass 0;
	set $rocket_reason "Specific mobile cache activated";	
}

# Do not bypass if the cached file does not exist
if (!-f "$rocket_file") {
	set $rocket_bypass 0;
	set $rocket_reason "File not cached";
}

# If the bypass token is still on, let's bypass WordPress with the cached URL
if ($rocket_bypass = 1) {
	set $rocket_is_bypassed "Yes";
	set $rocket_reason "$rocket_url";
}

# Clear variables if debug is not needed
if ($rocket_debug = 0) {
	set $rocket_reason "";
	set $rocket_file "";
}

# If the bypass token is still on, rewrite according to the file linked to the request
if ($rocket_bypass = 1) {
	rewrite .* "$rocket_url" last;
}

# Add header to HTML cached files
location ~ /wp-content/cache/wp-rocket/.*html$ {
	add_header Vary "Accept-Encoding, Cookie";
	add_header X-Rocket-Nginx-Bypass $rocket_is_bypassed;
	add_header X-Rocket-Nginx-Reason $rocket_reason;
	add_header X-Rocket-Nginx-File $rocket_file;
	#add_header Strict-Transport-Security "$rocket_hsts_value";
	expires 30d;
	
	#!# HEADER_HTTP #!#
	#!# HEADER_NON_GZIP #!#
}

# Do not gzip cached files that are already gzipped
location ~ /wp-content/cache/wp-rocket/.*_gzip$ {
	gzip off;
	types {}
	default_type text/html;
	add_header Content-Encoding gzip;
	add_header Vary "Accept-Encoding, Cookie";
	add_header X-Rocket-Nginx-Bypass $rocket_is_bypassed;
	add_header X-Rocket-Nginx-Reason $rocket_reason;
	add_header X-Rocket-Nginx-File $rocket_file;
	#add_header Strict-Transport-Security "$rocket_hsts_value";
	expires 30d;
	
	#!# HEADER_HTTP #!#
	#!# HEADER_GZIP #!#
}

# Debug header (when file is not cached)
add_header X-Rocket-Nginx-Bypass $rocket_is_bypassed;
add_header X-Rocket-Nginx-Reason $rocket_reason;
add_header X-Rocket-Nginx-File $rocket_file;

# No HSTS header added here. We suppose it's correctly added in the site configuration


###################################################################################################
# BROWSER CSS CACHE
#
location ~* \.css$ {
	gzip_vary on;
	expires 30d;
	
	#!# HEADER_CSS #!#
}


###################################################################################################
# BROWSER JS CACHE
#
location ~* \.js$ {
	gzip_vary on;
	expires 30d;
	
	#!# HEADER_JS #!#
}


###################################################################################################
# BROWSER MEDIA CACHE
#
location ~* \.(ico|gif|jpe?g|png|svg|eot|otf|woff|woff2|ttf|ogg)$ {
	expires 30d;
	
	#!# HEADER_MEDIAS #!#
}