libs: move http.protocol.{date,mime,conditionals} to luci-lib-httpprotoutils

[project/luci.git] / libs / luci-lib-httpprotoutils / luasrc / http / mime.lua

diff --git a/libs/luci-lib-httpprotoutils/luasrc/http/mime.lua b/libs/luci-lib-httpprotoutils/luasrc/http/mime.lua
new file mode 100644 (file)
index 0000000..0bcff8a
--- /dev/null
+++ b/libs/luci-lib-httpprotoutils/luasrc/http/mime.lua
@@ -0,0 +1,78 @@
+-- Copyright 2008 Freifunk Leipzig / Jo-Philipp Wich <jow@openwrt.org>
+-- Licensed to the public under the Apache License 2.0.
+
+-- This class provides functions to guess mime types from file extensions and
+-- vice versa.
+module("luci.http.mime", package.seeall)
+
+require("luci.util")
+
+MIME_TYPES = {
+    ["txt"]   = "text/plain";
+    ["js"]    = "text/javascript";
+    ["css"]   = "text/css";
+    ["htm"]   = "text/html";
+    ["html"]  = "text/html";
+    ["patch"] = "text/x-patch";
+    ["c"]     = "text/x-csrc";
+    ["h"]     = "text/x-chdr";
+    ["o"]     = "text/x-object";
+    ["ko"]    = "text/x-object";
+
+    ["bmp"]   = "image/bmp";
+    ["gif"]   = "image/gif";
+    ["png"]   = "image/png";
+    ["jpg"]   = "image/jpeg";
+    ["jpeg"]  = "image/jpeg";
+    ["svg"]   = "image/svg+xml";
+
+    ["zip"]   = "application/zip";
+    ["pdf"]   = "application/pdf";
+    ["xml"]   = "application/xml";
+    ["xsl"]   = "application/xml";
+    ["doc"]   = "application/msword";
+    ["ppt"]   = "application/vnd.ms-powerpoint";
+    ["xls"]   = "application/vnd.ms-excel";
+    ["odt"]   = "application/vnd.oasis.opendocument.text";
+    ["odp"]   = "application/vnd.oasis.opendocument.presentation";
+    ["pl"]    = "application/x-perl";
+    ["sh"]    = "application/x-shellscript";
+    ["php"]   = "application/x-php";
+    ["deb"]   = "application/x-deb";
+    ["iso"]   = "application/x-cd-image";
+    ["tgz"]   = "application/x-compressed-tar";
+
+    ["mp3"]   = "audio/mpeg";
+    ["ogg"]   = "audio/x-vorbis+ogg";
+    ["wav"]   = "audio/x-wav";
+
+    ["mpg"]   = "video/mpeg";
+    ["mpeg"]  = "video/mpeg";
+    ["avi"]   = "video/x-msvideo";
+}
+
+-- "application/octet-stream" if the extension is unknown.
+function to_mime(filename)
+       if type(filename) == "string" then
+               local ext = filename:match("[^%.]+$")
+
+               if ext and MIME_TYPES[ext:lower()] then
+                       return MIME_TYPES[ext:lower()]
+               end
+       end
+
+       return "application/octet-stream"
+end
+
+-- given mime-type is unknown.
+function to_ext(mimetype)
+       if type(mimetype) == "string" then
+               for ext, type in luci.util.kspairs( MIME_TYPES ) do
+                       if type == mimetype then
+                               return ext
+                       end
+               end
+       end
+
+       return nil
+end