# ----------------------------------------------------------------------
# ----------------------------------------------------------------------
# STRONG HTACCESS PROTECTION
# GO TO /etc/apache2/conf-enabled/security.conf AND SET ServerTokens Prod
# ----------------------------------------------------------------------
# ----------------------------------------------------------------------

# | File access                                                        |
# ----------------------------------------------------------------------
<IfModule mod_autoindex.c>
    Options -Indexes
</IfModule>

# Error prevention
Options -MultiViews

# Server software information
ServerSignature Off

FileETag None

# Character encodings
AddDefaultCharset utf-8

# ----------------------------------------------------------------------
# | Server-side technology information
# ----------------------------------------------------------------------
<IfModule mod_headers.c>
	#Cross-origin web fonts
	<FilesMatch "\.(eot|otf|tt[cf]|woff2?)$">
	Header set Access-Control-Allow-Origin "*"
	</FilesMatch>

	Header set X-UA-Compatible "IE=edge" "expr=%{CONTENT_TYPE} =~ m#text/html#i"

	# `mod_headers` cannot match based on the content-type, however,
	# the `X-UA-Compatible` response header should be sent only for
	# HTML documents and not for the other resources.

	<FilesMatch "\.(appcache|atom|bbaw|bmp|br|crx|css|cur|eot|f4[abpv]|flv|geojson|gif|gz|htc|ic[os]|jpe?g|m?js|json(ld)?|m4[av]|manifest|map|markdown|md|mp4|oex|og[agv]|opus|otf|pdf|png|rdf|rss|safariextz|svgz?|swf|topojson|tt[cf]|txt|vcard|vcf|vtt|wasm|webapp|web[mp]|webmanifest|woff2?|xloc|xml|xpi)$">
		Header unset X-UA-Compatible
	</FilesMatch>

	# | Reflected Cross-Site Scripting (XSS) attacks         
	Header set X-XSS-Protection "1; mode=block"

	# `mod_headers` cannot match based on the content-type, however,
	# the `X-XSS-Protection` response header should be sent only for
	# HTML documents and not for the other resources.

     <FilesMatch "\.(appcache|atom|bbaw|bmp|br|crx|css|cur|eot|f4[abpv]|flv|geojson|gif|gz|htc|ic[os]|jpe?g|m?js|json(ld)?|m4[av]|manifest|map|markdown|md|mp4|oex|og[agv]|opus|otf|pdf|png|rdf|rss|safariextz|svgz?|swf|topojson|tt[cf]|txt|vcard|vcf|vtt|wasm|webapp|web[mp]|webmanifest|woff2?|xloc|xml|xpi)$">
         Header unset X-XSS-Protection
     </FilesMatch>

	Header always set X-Frame-Options "SAMEORIGIN"
	Header append X-FRAME-OPTIONS "SAMEORIGIN"
	Header set X-Content-Type-Options "nosniff"
	Header unset X-Powered-By
	Header always unset X-Powered-By
	Header unset ETag
</IfModule>

# Block access to files that can expose sensitive information.
<IfModule mod_authz_core.c>
    <FilesMatch "(^#.*#|\.(bak|conf|dist|fla|in[ci]|log|orig|psd|sh|sql|sw[op])|~)$">
        Require all denied
    </FilesMatch>
</IfModule>

# ######################################################################
# # WEB PERFORMANCE                                                    #
# ######################################################################
# ----------------------------------------------------------------------
# | Compression                                                        |
# ----------------------------------------------------------------------
<IfModule mod_deflate.c>
    <IfModule mod_setenvif.c>
        <IfModule mod_headers.c>
            SetEnvIfNoCase ^(Accept-EncodXng|X-cept-Encoding|X{15}|~{15}|-{15})$ ^((gzip|deflate)\s*,?\s*)+|[X~-]{4,13}$ HAVE_Accept-Encoding
            RequestHeader append Accept-Encoding "gzip,deflate" env=HAVE_Accept-Encoding
        </IfModule>
    </IfModule>

    <IfModule mod_filter.c>
        AddOutputFilterByType DEFLATE "application/atom+xml" \
                                      "application/javascript" \
                                      "application/json" \
                                      "application/ld+json" \
                                      "application/manifest+json" \
                                      "application/rdf+xml" \
                                      "application/rss+xml" \
                                      "application/schema+json" \
                                      "application/vnd.geo+json" \
                                      "application/vnd.ms-fontobject" \
                                      "application/wasm" \
                                      "application/x-font-ttf" \
                                      "application/x-javascript" \
                                      "application/x-web-app-manifest+json" \
                                      "application/xhtml+xml" \
                                      "application/xml" \
                                      "font/collection" \
                                      "font/eot" \
                                      "font/opentype" \
                                      "font/otf" \
                                      "font/ttf" \
                                      "image/bmp" \
                                      "image/svg+xml" \
                                      "image/vnd.microsoft.icon" \
                                      "image/x-icon" \
                                      "text/cache-manifest" \
                                      "text/calendar" \
                                      "text/css" \
                                      "text/html" \
                                      "text/javascript" \
                                      "text/plain" \
                                      "text/markdown" \
                                      "text/vcard" \
                                      "text/vnd.rim.location.xloc" \
                                      "text/vtt" \
                                      "text/x-component" \
                                      "text/x-cross-domain-policy" \
                                      "text/xml"

    </IfModule>

    <IfModule mod_mime.c>
        AddEncoding gzip svgz
    </IfModule>

    Header append Vary User-Agent env=!dont-vary

    # Remove browser bugs (only needed for really old browsers)
    BrowserMatch ^Mozilla/4 gzip-only-text/html
    BrowserMatch ^Mozilla/4\.0[678] no-gzip
    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
    Header append Vary User-Agent
</IfModule>

# ----------------------------------------------------------------------
# | GZip pre-compressed content                                        |
# ----------------------------------------------------------------------
<IfModule mod_headers.c>
     RewriteCond %{HTTP:Accept-Encoding} gzip
     RewriteCond %{REQUEST_FILENAME}\.gz -f
    RewriteRule \.(css|ics|js|json|html|svg)$ %{REQUEST_URI}.gz [L]

    # Prevent mod_deflate double gzip
    RewriteRule \.gz$ - [E=no-gzip:1]

     <FilesMatch "\.gz$">
        # Serve correct content types
        <IfModule mod_mime.c>
             # (1)
             RemoveType gz

             # Serve correct content types
             AddType text/css              css.gz
             AddType text/calendar         ics.gz
             AddType text/javascript       js.gz
             AddType application/json      json.gz
             AddType text/html             html.gz
             AddType image/svg+xml         svg.gz

             # Serve correct content charset
             AddCharset utf-8 .css.gz \
                              .ics.gz \
                              .js.gz \
                              .json.gz
        </IfModule>

        # Force proxies to cache gzipped and non-gzipped files separately
        Header append Vary Accept-Encoding

    </FilesMatch>

    # Serve correct encoding type
    AddEncoding gzip .gz
 </IfModule>

# ----------------------------------------------------------------------
# | Remove Last-Modified
# | https://www.askapache.com/htaccess/apache-speed-last-modified/#Remove_Last-Modified_Header                                                        |
# ----------------------------------------------------------------------
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|webp|js|css)$">
    Header unset Last-Modified
</FilesMatch>

# ----------------------------------------------------------------------
# | Cache expiration                                                   |
# ----------------------------------------------------------------------
<IfModule mod_expires.c>
    ExpiresActive on
    ExpiresDefault                                      "access plus 1 month"

  # CSS
    ExpiresByType text/css                              "access plus 1 month"

  # Data interchange
    ExpiresByType application/atom+xml                  "access plus 1 hour"
    ExpiresByType application/rdf+xml                   "access plus 1 hour"
    ExpiresByType application/rss+xml                   "access plus 1 hour"

    ExpiresByType application/json                      "access plus 600 seconds"
    ExpiresByType application/ld+json                   "access plus 600 seconds"
    ExpiresByType application/schema+json               "access plus 600 seconds"
    ExpiresByType application/vnd.geo+json              "access plus 600 seconds"
    ExpiresByType application/xml                       "access plus 600 seconds"
    ExpiresByType text/calendar                         "access plus 600 seconds"
    ExpiresByType text/xml                              "access plus 600 seconds"

  # Favicon (cannot be renamed!) and cursor images
    ExpiresByType image/vnd.microsoft.icon              "access plus 1 year"
    ExpiresByType image/x-icon                          "access plus 1 year"

  # HTML
    ExpiresByType text/html                             "access plus 600 seconds"


  # JavaScript
    ExpiresByType application/javascript                "access plus 1 year"
    ExpiresByType application/x-javascript              "access plus 1 year"
    ExpiresByType text/javascript                       "access plus 1 year"

  # Manifest files
    ExpiresByType application/manifest+json             "access plus 1 year"
    ExpiresByType application/x-web-app-manifest+json   "access plus 1 year"
    ExpiresByType text/cache-manifest                   "access plus 1 year"

  # Markdown
    ExpiresByType text/markdown                         "access plus 600 seconds"

  # Media files
    ExpiresByType audio/ogg                             "access plus 1 year"
    ExpiresByType image/bmp                             "access plus 1 year"
    ExpiresByType image/gif                             "access plus 1 year"
    ExpiresByType image/jpeg                            "access plus 1 year"
    ExpiresByType image/png                             "access plus 1 year"
    ExpiresByType image/svg+xml                         "access plus 1 year"
    ExpiresByType image/webp                            "access plus 1 year"
    ExpiresByType video/mp4                             "access plus 1 year"
    ExpiresByType video/ogg                             "access plus 1 year"
    ExpiresByType video/webm                            "access plus 1 year"

  # WebAssembly
    ExpiresByType application/wasm                      "access plus 1 year"

  # Web fonts
    # Collection
    ExpiresByType font/collection                       "access plus 1 year"

    # Embedded OpenType (EOT)
    ExpiresByType application/vnd.ms-fontobject         "access plus 1 year"
    ExpiresByType font/eot                              "access plus 1 year"

    # OpenType
    ExpiresByType font/opentype                         "access plus 1 year"
    ExpiresByType font/otf                              "access plus 1 year"

    # TrueType
    ExpiresByType application/x-font-ttf                "access plus 1 year"
    ExpiresByType font/ttf                              "access plus 1 year"

    # Web Open Font Format (WOFF) 1.0
    ExpiresByType application/font-woff                 "access plus 1 year"
    ExpiresByType application/x-font-woff               "access plus 1 year"
    ExpiresByType font/woff                             "access plus 1 year"

    # Web Open Font Format (WOFF) 2.0
    ExpiresByType application/font-woff2                "access plus 1 year"
    ExpiresByType font/woff2                            "access plus 1 year"

  # Other
    ExpiresByType text/x-cross-domain-policy            "access plus 1 week"
</IfModule>

# CACHE CONTROL
<ifModule mod_headers.c>
  # The past day for default of all content
  Header set Cache-Control "max-age=600, public"

  # 5 Mins for HTML
  <FilesMatch "\.(html|htm)$">
    Header set Cache-Control "max-age=600, public"
  </FilesMatch>

  # One month for css and js
  <filesMatch "\.(css|js)$">
    Header set Cache-Control "max-age=31536000, public"
  </filesMatch>

  # One year for image files
  <FilesMatch "\.(jpg|jpeg|png|ico|gif|webp|eot|otf|tt[cf]|woff|woff2|svg|mp4|webm|ogv|swf)$">
    Header set Cache-Control "max-age=31536000, public"
  </filesMatch>
</IfModule>

<IfModule mod_gzip.c>
  mod_gzip_on       Yes
  mod_gzip_dechunk  Yes
  mod_gzip_item_include file      \.(html?|txt|css|js|svg)$
  mod_gzip_item_include handler   ^cgi-script$
  mod_gzip_item_include mime      ^text/.*
  mod_gzip_item_include mime      ^application/x-javascript.*
  mod_gzip_item_exclude mime      ^image/.*
  mod_gzip_item_include mime      ^image/svg+xml.*
  mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</IfModule>

# ----------------------------------------------------------------------
# | Cross-origin images                                                |
# ----------------------------------------------------------------------
<IfModule mod_setenvif.c>
    <IfModule mod_headers.c>
        <FilesMatch "\.(bmp|cur|gif|ico|jpe?g|png|svgz?|webp)$">
            SetEnvIf Origin ":" IS_CORS
            Header set Access-Control-Allow-Origin "*" env=IS_CORS
        </FilesMatch>
    </IfModule>
</IfModule>


# ######################################################################
# # MEDIA TYPES AND CHARACTER ENCODINGS                                #
# ######################################################################

# ----------------------------------------------------------------------
# | Media types                                                        |
# ----------------------------------------------------------------------
<IfModule mod_mime.c>
  # Data interchange
    AddType application/atom+xml                        atom
    AddType application/json                            json map topojson
    AddType application/ld+json                         jsonld
    AddType application/rss+xml                         rss
    AddType application/vnd.geo+json                    geojson
    AddType application/xml                             rdf xml

  # JavaScript
    # Servers should use text/javascript for JavaScript resources.
    # https://html.spec.whatwg.org/multipage/scripting.html#scriptingLanguages
    AddType text/javascript                             js mjs

  # Manifest files
    AddType application/manifest+json                   webmanifest
    AddType application/x-web-app-manifest+json         webapp
    AddType text/cache-manifest                         appcache

  # Media files
    AddType audio/mp4                                   f4a f4b m4a
    AddType audio/ogg                                   oga ogg opus
    AddType image/bmp                                   bmp
    AddType image/svg+xml                               svg svgz
    AddType image/webp                                  webp
    AddType video/mp4                                   f4v f4p m4v mp4
    AddType video/ogg                                   ogv
    AddType video/webm                                  webm
    AddType video/x-flv                                 flv

    # Serving `.ico` image files with a different media type
    # prevents Internet Explorer from displaying them as images:
    # https://github.com/h5bp/html5-boilerplate/commit/37b5fec090d00f38de64b591bcddcb205aadf8ee
    AddType image/x-icon                                cur ico

  # WebAssembly
    AddType application/wasm                            wasm

  # Web fonts
    AddType font/woff                                   woff
    AddType font/woff2                                  woff2
    AddType application/vnd.ms-fontobject               eot
    AddType font/ttf                                    ttf
    AddType font/collection                             ttc
    AddType font/otf                                    otf

  # Other
    AddType application/octet-stream                    safariextz
    AddType application/x-bb-appworld                   bbaw
    AddType application/x-chrome-extension              crx
    AddType application/x-opera-extension               oex
    AddType application/x-xpinstall                     xpi
    AddType text/calendar                               ics
    AddType text/markdown                               markdown md
    AddType text/vcard                                  vcard vcf
    AddType text/vnd.rim.location.xloc                  xloc
    AddType text/vtt                                    vtt
    AddType text/x-component                            htc
</IfModule>

<IfModule mod_mime.c>
    AddCharset utf-8 .atom \
                     .bbaw \
                     .css \
                     .geojson \
                     .ics \
                     .js \
                     .json \
                     .jsonld \
                     .manifest \
                     .markdown \
                     .md \
                     .mjs \
                     .rdf \
                     .rss \
                     .topojson \
                     .vtt \
                     .webapp \
                     .webmanifest \
                     .xloc \
                     .xml
</IfModule>