# -*- mode: nginx; mode: flyspell-prog; ispell-local-dictionary: "american" -*-
### Nginx configuration for using Boost with Drupal. This
### configuration makes use of drush (http:///drupal.org/project/drush)
### for site maintenance and like tasks:
###
### 1. Run the cronjobs.
### 2. Run the DB and code updates: drush up or drush upc followed by
###    drush updb to run any DB updates required by the code upgrades
###    that were performed.
### 3. Disabling of xmlrpc.xml, install.php (needed only for
###    installing the site) and update.php: all updates are now
###    handled through drush.

## To avoid the ugly rewrite we use Lua to escape the URI.
set_by_lua $escaped_uri 'return ngx.escape_uri(ngx.var.uri)';

## The 'default' location.
location / {

    ## Drupal 404 from can impact performance. If using a module like
    ## search404 then 404's *have *to be handled by Drupal. Uncomment to
    ## relay the handling of 404's to Drupal.
    ## error_page 404 /index.php;

    ## Using a nested location is the 'correct' way to use regexes.

    ## Regular private file serving (i.e. handled by Drupal).
    location ^~ /system/files/ {
        ## Include the specific FastCGI configuration. This is for a
        ## FCGI backend like php-cgi or php-fpm.
        include apps/drupal/fastcgi_drupal.conf;
        fastcgi_pass phpcgi;

        ## If proxying to apache comment the two lines above and
        ## uncomment the line below.
        #proxy_pass http://phpapache/index.php?q=$escaped_uri;
        #proxy_set_header Connection '';

        ## For not signaling a 404 in the error log whenever the
        ## system/files directory is accessed add the line below.
        ## Note that the 404 is the intended behavior.
        log_not_found off;
    }

    ## Trying to access private files directly returns a 404.
    location ^~ /sites/default/files/private/ {
        internal;
    }

    ## Support for the file_force module
    ## http://drupal.org/project/file_force.
    location ^~ /system/files_force/ {
        ## Include the specific FastCGI configuration. This is for a
        ## FCGI backend like php-cgi or php-fpm.
        include apps/drupal/fastcgi_drupal.conf;
        fastcgi_pass phpcgi;

        ## If proxying to apache comment the two lines above and
        ## uncomment the line below.
        #proxy_pass http://phpapache/index.php?q=$no_slash_uri;
        #proxy_set_header Connection '';

        ## For not signaling a 404 in the error log whenever the
        ## system/files directory is accessed add the line below.
        ## Note that the 404 is the intended behavior.
        log_not_found off;
    }

    ## If accessing an image generated by Drupal 6 imagecache, serve it
    ## directly if available, if not relay the request to Drupal to (re)generate
    ## the image.
    location ~* /imagecache/ {
        ## Image hotlinking protection. If you want hotlinking
        ## protection for your images uncomment the following line.
        #include apps/drupal/hotlinking_protection.conf;

        access_log off;
        expires 30d;
        try_files $escaped_uri @drupal;
    }

    ## Drupal 7 generated image handling, i.e., imagecache in core. See:
    ## http://drupal.org/node/371374.
    location ~* /files/styles/ {
        ## Image hotlinking protection. If you want hotlinking
        ## protection for your images uncomment the following line.
        #include apps/drupal/hotlinking_protection.conf;

        access_log off;
        expires 30d;
        try_files $escaped_uri @drupal;
    }

    ## Advanced Aggregation module CSS
    ## support. http://drupal.org/project/advagg.
    location ^~ /sites/default/files/advagg_css/ {
        expires max;
        add_header ETag '';
        add_header Last-Modified 'Wed, 20 Jan 1988 04:20:42 GMT';
        add_header Accept-Ranges '';

        location ~* /sites/default/files/advagg_css/css[_[:alnum:]]+\.css$ {
            access_log off;
            try_files $escaped_uri @drupal;
        }
    }

    ## Advanced Aggregation module JS
    ## support. http://drupal.org/project/advagg.
    location ^~ /sites/default/files/advagg_js/ {
        add_header Pragma '';
        add_header Cache-Control 'public, max-age=946080000';
        add_header Accept-Ranges '';

        location ~* /sites/default/files/advagg_js/js[_[:alnum:]]+\.js$ {
            access_log off;
            try_files $escaped_uri @drupal;
        }
    }

    ## All static files will be served directly.
    location ~* ^.+\.(?:css|cur|js|jpe?g|gif|htc|ico|png|html|xml|otf|ttf|eot|woff|svg)$ {
        access_log off;
        expires 30d;
        ## No need to bleed constant updates. Send the all shebang in one
        ## fell swoop.
        tcp_nodelay off;
    }

    ## PDFs and powerpoint files handling.
    location ~* ^.+\.(?:pdf|pptx?)$ {
        expires 30d;
        ## No need to bleed constant updates. Send the all shebang in one
        ## fell swoop.
        tcp_nodelay off;
    }

    ## MP3 and Ogg/Vorbis files are served using AIO when supported. Your OS must support it.
    location ^~ /sites/default/files/audio/mp3 {
        location ~* ^/sites/default/files/audio/mp3/.*\.mp3$ {
            directio 4k; # for XFS
            ## If you're using ext3 or similar uncomment the line below and comment the above.
            #directio 512; # for ext3 or similar (block alignments)
            tcp_nopush off;
            aio on;
            output_buffers 1 2M;
        }
    }

    location ^~ /sites/default/files/audio/ogg {
        location ~* ^/sites/default/files/audio/ogg/.*\.ogg$ {
            directio 4k; # for XFS
            ## If you're using ext3 or similar uncomment the line below and comment the above.
            #directio 512; # for ext3 or similar (block alignments)
            tcp_nopush off;
            aio on;
            output_buffers 1 2M;
        }
    }

    ## Pseudo streaming of FLV files:
    ## http://wiki.nginx.org/HttpFlvStreamModule.
    ## If pseudo streaming isn't working, try to comment
    ## out in nginx.conf line with:
    ## add_header X-Frame-Options SAMEORIGIN;
    location ^~ /sites/default/files/video/flv {
        location ~* ^/sites/default/files/video/flv/.*\.flv$ {
            flv;
        }
    }

    ## Pseudo streaming of H264/AAC files. This requires an Nginx
    ## version greater or equal to 1.0.7 for the stable branch and
    ## greater or equal to 1.1.3 for the development branch.
    ## Cf. http://nginx.org/en/docs/http/ngx_http_mp4_module.html.
    location ^~ /sites/default/files/video/mp4 { # videos
        location ~* ^/sites/default/files/video/mp4/.*\.(?:mp4|mov)$ {
            mp4;
            mp4_buffer_size 1M;
            mp4_max_buffer_size 5M;
        }
    }

    location ^~ /sites/default/files/audio/m4a { # audios
        location ~* ^/sites/default/files/audio/m4a/.*\.m4a$ {
            mp4;
            mp4_buffer_size 1M;
            mp4_max_buffer_size 5M;
        }
    }

    ## Advanced Help module makes each module provided README available.
    location ^~ /help/ {
        location ~* ^/help/[^/]*/README\.txt$ {
            ## Include the specific FastCGI configuration. This is for a
            ## FCGI backend like php-cgi or php-fpm.
            include apps/drupal/fastcgi_drupal.conf;
            fastcgi_pass phpcgi;

            ## If proxying to apache comment the two lines above and
            ## uncomment the line below.
            #proxy_pass http://phpapache/index.php?q=$escaped_uri;
            #proxy_set_header Connection '';
        }
    }

    ## Replicate the Apache <FilesMatch> directive of Drupal standard
    ## .htaccess. Disable access to any code files. Return a 404 to curtail
    ## information disclosure. Hide also the text files.
    location ~* ^(?:.+\.(?:htaccess|make|txt|engine|inc|info|install|module|profile|po|pot|sh|.*sql|test|theme|tpl(?:\.php)?|xtmpl)|code-style\.pl|/Entries.*|/Repository|/Root|/Tag|/Template)$ {
        return 404;
    }

    ## First we try the URI and relay to the @cache if not found.
    try_files $escaped_uri @cache;
}

## We define a named location for the cache.
location @cache {
    ## Boost compresses can the pages so we check it. Comment it out
    ## if you don't have it enabled in Boost.
    gzip_static on;

    ## Error page handler for the case where $no_cache is 1. POST
    ## request or authenticated.
    error_page 418 = @drupal;

    ## If $no_cache is 1 then it means that either we have a session
    ## cookie or that the request method is POST. So serve the dynamic
    ## page.
    if ($no_cache) {
        return 418; # I'm a teapot/I can't get no cachifaction
    }

    ## No caching for POST requests.
    if ($request_method = POST) {
        return 418;
    }

    # Now for some header tweaking. We use a date that differs
    # from stock Drupal. Everyone seems to be using their
    # birthdate. Why go against the grain?
    add_header Expires "Tue, 13 Jun 1977 03:45:00 GMT";
    # We bypass all delays in the post-check and pre-check
    # parameters of Cache-Control. Both set to 0.
    add_header Cache-Control "must-revalidate, post-check=0, pre-check=0";
    # Funny...perhaps. Egocentric? Damn right!;
    add_header X-Header "Boost Helás Avril 1.0";
    ## Boost doesn't set a charset.
    charset utf-8;

    # We try each boost URI in succession, if every one of them
    # fails then relay to Drupal.
    try_files /cache/normal/$host${uri}_${args}.html /cache/perm/$host${uri}_.css /cache/perm/$host${uri}_.js /cache/$host/0$escaped_uri.html /cache/$host/0${uri}/index.html @drupal;
}

########### Security measures ##########

## Uncomment the line below if you want to enable basic auth for
## access to all /admin URIs. Note that this provides much better
## protection if use HTTPS. Since it can easily be eavesdropped if you
## use HTTP.
#include apps/drupal/admin_basic_auth.conf;

## Restrict access to the strictly necessary PHP files. Reducing the
## scope for exploits. Handling of PHP code and the Drupal event loop.
location @drupal {
    ## Include the FastCGI config.
    include apps/drupal/fastcgi_drupal.conf;
    fastcgi_pass phpcgi;

    ## FCGI microcache for authenticated users also.
    include apps/drupal/microcache_fcgi_auth.conf;

    ## To use Apache for serving PHP uncomment the line bellow and
    ## comment out the above.
    #proxy_pass http://phpapache/index.php?q=$escaped_uri&$args;
    #proxy_set_header Connection '';
    ## Proxy microcache for authenticated users also.
    #include apps/drupal/microcache_proxy_auth.conf;

    ## Filefield Upload progress
    ## http://drupal.org/project/filefield_nginx_progress support
    ## through the NginxUploadProgress modules.
    track_uploads uploads 60s;
}

location @drupal-no-args {
    ## Include the specific FastCGI configuration. This is for a
    ## FCGI backend like php-cgi or php-fpm.
    include apps/drupal/fastcgi_no_args_drupal.conf;
    fastcgi_pass phpcgi;

    ## FCGI microcache for authenticated users also.
    include apps/drupal/microcache_fcgi_auth.conf;

    ## If proxying to apache comment the two lines above and
    ## uncomment the line below.
    #proxy_pass http://phpapache/index.php?q=$escaped_uri;
    #proxy_set_header Connection '';

    ## Proxy microcache for authenticated users also.
    #include apps/drupal/microcache_proxy_auth.conf;
}

## Disallow access to .bzr, .git, .hg, .svn, .cvs directories: return
## 404 as not to disclose information.
location ^~ /.bzr {
    return 404;
}

location ^~ /.git {
    return 404;
}

location ^~ /.hg {
    return 404;
}

location ^~ /.svn {
    return 404;
}

location ^~ /.cvs {
    return 404;
}

## Disallow access to patches directory.
location ^~ /patches {
    return 404;
}

## Disallow access to drush backup directory.
location ^~ /backup {
    return 404;
}

## Disable access logs for robots.txt.
location = /robots.txt {
    access_log off;
    ## Add support for the robotstxt module
    ## http://drupal.org/project/robotstxt.
    try_files $uri @drupal-no-args;
}

## RSS feed support.
location = /rss.xml {
    try_files $escaped_uri @drupal-no-args;
}

## XML Sitemap support.
location = /sitemap.xml {
    try_files $escaped_uri @drupal-no-args;
}

## Support for favicon. Return an 1x1 transparent GIF if it doesn't
## exist.
location = /favicon.ico {
    expires 30d;
    try_files /favicon.ico @empty;
}

## Return an in memory 1x1 transparent GIF.
location @empty {
    expires 30d;
    empty_gif;
}

## Any other attempt to access PHP files returns a 404.
location ~* ^.+\.php$ {
    return 404;
}

## Boost stats.
location = /boost_stats.php {
    fastcgi_pass phpcgi;
    ## To use Apache for serving PHP uncomment the line bellow and
    ## comment out the above.
    #proxy_pass http://phpapache;
    #proxy_set_header Connection '';
}