| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package libcore.net; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Utilities for dealing with MIME types. |
| * Used to implement java.net.URLConnection and android.webkit.MimeTypeMap. |
| */ |
| public final class MimeUtils { |
| private static final Map<String, String> mimeTypeToExtensionMap = new HashMap<String, String>(); |
| |
| private static final Map<String, String> extensionToMimeTypeMap = new HashMap<String, String>(); |
| |
| static { |
| // The following table is based on /etc/mime.types data minus |
| // chemical/* MIME types and MIME types that don't map to any |
| // file extensions. We also exclude top-level domain names to |
| // deal with cases like: |
| // |
| // mail.google.com/a/google.com |
| // |
| // and "active" MIME types (due to potential security issues). |
| |
| // Note that this list is _not_ in alphabetical order and must not be sorted. |
| // The "most popular" extension must come first, so that it's the one returned |
| // by guessExtensionFromMimeType. |
| |
| add("application/andrew-inset", "ez"); |
| add("application/dsptype", "tsp"); |
| add("application/epub+zip", "epub"); |
| add("application/hta", "hta"); |
| add("application/mac-binhex40", "hqx"); |
| add("application/mathematica", "nb"); |
| add("application/msaccess", "mdb"); |
| add("application/oda", "oda"); |
| add("application/ogg", "ogg"); |
| add("application/ogg", "oga"); |
| add("application/pdf", "pdf"); |
| add("application/pgp-keys", "key"); |
| add("application/pgp-signature", "pgp"); |
| add("application/pics-rules", "prf"); |
| add("application/pkix-cert", "cer"); |
| add("application/rar", "rar"); |
| add("application/rdf+xml", "rdf"); |
| add("application/rss+xml", "rss"); |
| add("application/zip", "zip"); |
| add("application/vnd.android.package-archive", "apk"); |
| add("application/vnd.cinderella", "cdy"); |
| add("application/vnd.ms-pki.stl", "stl"); |
| add("application/vnd.oasis.opendocument.database", "odb"); |
| add("application/vnd.oasis.opendocument.formula", "odf"); |
| add("application/vnd.oasis.opendocument.graphics", "odg"); |
| add("application/vnd.oasis.opendocument.graphics-template", "otg"); |
| add("application/vnd.oasis.opendocument.image", "odi"); |
| add("application/vnd.oasis.opendocument.presentation", "odp"); |
| add("application/vnd.oasis.opendocument.presentation-template", "otp"); |
| add("application/vnd.oasis.opendocument.spreadsheet", "ods"); |
| add("application/vnd.oasis.opendocument.spreadsheet-template", "ots"); |
| add("application/vnd.oasis.opendocument.text", "odt"); |
| add("application/vnd.oasis.opendocument.text-master", "odm"); |
| add("application/vnd.oasis.opendocument.text-template", "ott"); |
| add("application/vnd.oasis.opendocument.text-web", "oth"); |
| add("application/vnd.google-earth.kml+xml", "kml"); |
| add("application/vnd.google-earth.kmz", "kmz"); |
| add("application/msword", "doc"); |
| add("application/msword", "dot"); |
| add("application/vnd.openxmlformats-officedocument.wordprocessingml.document", "docx"); |
| add("application/vnd.openxmlformats-officedocument.wordprocessingml.template", "dotx"); |
| add("application/vnd.ms-excel", "xls"); |
| add("application/vnd.ms-excel", "xlt"); |
| add("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", "xlsx"); |
| add("application/vnd.openxmlformats-officedocument.spreadsheetml.template", "xltx"); |
| add("application/vnd.ms-powerpoint", "ppt"); |
| add("application/vnd.ms-powerpoint", "pot"); |
| add("application/vnd.ms-powerpoint", "pps"); |
| add("application/vnd.openxmlformats-officedocument.presentationml.presentation", "pptx"); |
| add("application/vnd.openxmlformats-officedocument.presentationml.template", "potx"); |
| add("application/vnd.openxmlformats-officedocument.presentationml.slideshow", "ppsx"); |
| add("application/vnd.rim.cod", "cod"); |
| add("application/vnd.smaf", "mmf"); |
| add("application/vnd.stardivision.calc", "sdc"); |
| add("application/vnd.stardivision.draw", "sda"); |
| add("application/vnd.stardivision.impress", "sdd"); |
| add("application/vnd.stardivision.impress", "sdp"); |
| add("application/vnd.stardivision.math", "smf"); |
| add("application/vnd.stardivision.writer", "sdw"); |
| add("application/vnd.stardivision.writer", "vor"); |
| add("application/vnd.stardivision.writer-global", "sgl"); |
| add("application/vnd.sun.xml.calc", "sxc"); |
| add("application/vnd.sun.xml.calc.template", "stc"); |
| add("application/vnd.sun.xml.draw", "sxd"); |
| add("application/vnd.sun.xml.draw.template", "std"); |
| add("application/vnd.sun.xml.impress", "sxi"); |
| add("application/vnd.sun.xml.impress.template", "sti"); |
| add("application/vnd.sun.xml.math", "sxm"); |
| add("application/vnd.sun.xml.writer", "sxw"); |
| add("application/vnd.sun.xml.writer.global", "sxg"); |
| add("application/vnd.sun.xml.writer.template", "stw"); |
| add("application/vnd.visio", "vsd"); |
| add("application/x-abiword", "abw"); |
| add("application/x-apple-diskimage", "dmg"); |
| add("application/x-bcpio", "bcpio"); |
| add("application/x-bittorrent", "torrent"); |
| add("application/x-cdf", "cdf"); |
| add("application/x-cdlink", "vcd"); |
| add("application/x-chess-pgn", "pgn"); |
| add("application/x-cpio", "cpio"); |
| add("application/x-debian-package", "deb"); |
| add("application/x-debian-package", "udeb"); |
| add("application/x-director", "dcr"); |
| add("application/x-director", "dir"); |
| add("application/x-director", "dxr"); |
| add("application/x-dms", "dms"); |
| add("application/x-doom", "wad"); |
| add("application/x-dvi", "dvi"); |
| add("application/x-font", "pfa"); |
| add("application/x-font", "pfb"); |
| add("application/x-font", "gsf"); |
| add("application/x-font", "pcf"); |
| add("application/x-font", "pcf.Z"); |
| add("application/x-freemind", "mm"); |
| // application/futuresplash isn't IANA, so application/x-futuresplash should come first. |
| add("application/x-futuresplash", "spl"); |
| add("application/futuresplash", "spl"); |
| add("application/x-gnumeric", "gnumeric"); |
| add("application/x-go-sgf", "sgf"); |
| add("application/x-graphing-calculator", "gcf"); |
| add("application/x-gtar", "tgz"); |
| add("application/x-gtar", "gtar"); |
| add("application/x-gtar", "taz"); |
| add("application/x-hdf", "hdf"); |
| add("application/x-hwp", "hwp"); // http://b/18788282. |
| add("application/x-ica", "ica"); |
| add("application/x-internet-signup", "ins"); |
| add("application/x-internet-signup", "isp"); |
| add("application/x-iphone", "iii"); |
| add("application/x-iso9660-image", "iso"); |
| add("application/x-jmol", "jmz"); |
| add("application/x-kchart", "chrt"); |
| add("application/x-killustrator", "kil"); |
| add("application/x-koan", "skp"); |
| add("application/x-koan", "skd"); |
| add("application/x-koan", "skt"); |
| add("application/x-koan", "skm"); |
| add("application/x-kpresenter", "kpr"); |
| add("application/x-kpresenter", "kpt"); |
| add("application/x-kspread", "ksp"); |
| add("application/x-kword", "kwd"); |
| add("application/x-kword", "kwt"); |
| add("application/x-latex", "latex"); |
| add("application/x-lha", "lha"); |
| add("application/x-lzh", "lzh"); |
| add("application/x-lzx", "lzx"); |
| add("application/x-maker", "frm"); |
| add("application/x-maker", "maker"); |
| add("application/x-maker", "frame"); |
| add("application/x-maker", "fb"); |
| add("application/x-maker", "book"); |
| add("application/x-maker", "fbdoc"); |
| add("application/x-mif", "mif"); |
| add("application/x-ms-wmd", "wmd"); |
| add("application/x-ms-wmz", "wmz"); |
| add("application/x-msi", "msi"); |
| add("application/x-ns-proxy-autoconfig", "pac"); |
| add("application/x-nwc", "nwc"); |
| add("application/x-object", "o"); |
| add("application/x-oz-application", "oza"); |
| add("application/x-pem-file", "pem"); |
| add("application/x-pkcs12", "p12"); |
| add("application/x-pkcs12", "pfx"); |
| add("application/x-pkcs7-certreqresp", "p7r"); |
| add("application/x-pkcs7-crl", "crl"); |
| add("application/x-quicktimeplayer", "qtl"); |
| add("application/x-shar", "shar"); |
| add("application/x-shockwave-flash", "swf"); |
| add("application/x-stuffit", "sit"); |
| add("application/x-sv4cpio", "sv4cpio"); |
| add("application/x-sv4crc", "sv4crc"); |
| add("application/x-tar", "tar"); |
| add("application/x-texinfo", "texinfo"); |
| add("application/x-texinfo", "texi"); |
| add("application/x-troff", "t"); |
| add("application/x-troff", "roff"); |
| add("application/x-troff-man", "man"); |
| add("application/x-ustar", "ustar"); |
| add("application/x-wais-source", "src"); |
| add("application/x-wingz", "wz"); |
| add("application/x-webarchive", "webarchive"); |
| add("application/x-webarchive-xml", "webarchivexml"); |
| add("application/x-x509-ca-cert", "crt"); |
| add("application/x-x509-user-cert", "crt"); |
| add("application/x-x509-server-cert", "crt"); |
| add("application/x-xcf", "xcf"); |
| add("application/x-xfig", "fig"); |
| add("application/xhtml+xml", "xhtml"); |
| add("audio/3gpp", "3gpp"); |
| add("audio/aac", "aac"); |
| add("audio/aac-adts", "aac"); |
| add("audio/amr", "amr"); |
| add("audio/amr-wb", "awb"); |
| add("audio/basic", "snd"); |
| add("audio/flac", "flac"); |
| add("application/x-flac", "flac"); |
| add("audio/imelody", "imy"); |
| add("audio/midi", "mid"); |
| add("audio/midi", "midi"); |
| add("audio/midi", "ota"); |
| add("audio/midi", "kar"); |
| add("audio/midi", "rtttl"); |
| add("audio/midi", "xmf"); |
| add("audio/mobile-xmf", "mxmf"); |
| // add ".mp3" first so it will be the default for guessExtensionFromMimeType |
| add("audio/mpeg", "mp3"); |
| add("audio/mpeg", "mpga"); |
| add("audio/mpeg", "mpega"); |
| add("audio/mpeg", "mp2"); |
| add("audio/mpeg", "m4a"); |
| add("audio/mpegurl", "m3u"); |
| add("audio/prs.sid", "sid"); |
| add("audio/x-aiff", "aif"); |
| add("audio/x-aiff", "aiff"); |
| add("audio/x-aiff", "aifc"); |
| add("audio/x-gsm", "gsm"); |
| add("audio/x-matroska", "mka"); |
| add("audio/x-mpegurl", "m3u"); |
| add("audio/x-ms-wma", "wma"); |
| add("audio/x-ms-wax", "wax"); |
| add("audio/x-pn-realaudio", "ra"); |
| add("audio/x-pn-realaudio", "rm"); |
| add("audio/x-pn-realaudio", "ram"); |
| add("audio/x-realaudio", "ra"); |
| add("audio/x-scpls", "pls"); |
| add("audio/x-sd2", "sd2"); |
| add("audio/x-wav", "wav"); |
| // image/bmp isn't IANA, so image/x-ms-bmp should come first. |
| add("image/x-ms-bmp", "bmp"); |
| add("image/bmp", "bmp"); |
| add("image/gif", "gif"); |
| // image/ico isn't IANA, so image/x-icon should come first. |
| add("image/x-icon", "ico"); |
| add("image/ico", "cur"); |
| add("image/ico", "ico"); |
| add("image/ief", "ief"); |
| // add ".jpg" first so it will be the default for guessExtensionFromMimeType |
| add("image/jpeg", "jpg"); |
| add("image/jpeg", "jpeg"); |
| add("image/jpeg", "jpe"); |
| add("image/pcx", "pcx"); |
| add("image/png", "png"); |
| add("image/svg+xml", "svg"); |
| add("image/svg+xml", "svgz"); |
| add("image/tiff", "tiff"); |
| add("image/tiff", "tif"); |
| add("image/vnd.djvu", "djvu"); |
| add("image/vnd.djvu", "djv"); |
| add("image/vnd.wap.wbmp", "wbmp"); |
| add("image/webp", "webp"); |
| add("image/x-adobe-dng", "dng"); |
| add("image/x-canon-cr2", "cr2"); |
| add("image/x-cmu-raster", "ras"); |
| add("image/x-coreldraw", "cdr"); |
| add("image/x-coreldrawpattern", "pat"); |
| add("image/x-coreldrawtemplate", "cdt"); |
| add("image/x-corelphotopaint", "cpt"); |
| add("image/x-fuji-raf", "raf"); |
| add("image/x-jg", "art"); |
| add("image/x-jng", "jng"); |
| add("image/x-nikon-nef", "nef"); |
| add("image/x-nikon-nrw", "nrw"); |
| add("image/x-olympus-orf", "orf"); |
| add("image/x-panasonic-rw2", "rw2"); |
| add("image/x-pentax-pef", "pef"); |
| add("image/x-photoshop", "psd"); |
| add("image/x-portable-anymap", "pnm"); |
| add("image/x-portable-bitmap", "pbm"); |
| add("image/x-portable-graymap", "pgm"); |
| add("image/x-portable-pixmap", "ppm"); |
| add("image/x-samsung-srw", "srw"); |
| add("image/x-sony-arw", "arw"); |
| add("image/x-rgb", "rgb"); |
| add("image/x-xbitmap", "xbm"); |
| add("image/x-xpixmap", "xpm"); |
| add("image/x-xwindowdump", "xwd"); |
| add("model/iges", "igs"); |
| add("model/iges", "iges"); |
| add("model/mesh", "msh"); |
| add("model/mesh", "mesh"); |
| add("model/mesh", "silo"); |
| add("text/calendar", "ics"); |
| add("text/calendar", "icz"); |
| add("text/comma-separated-values", "csv"); |
| add("text/css", "css"); |
| add("text/html", "htm"); |
| add("text/html", "html"); |
| add("text/h323", "323"); |
| add("text/iuls", "uls"); |
| add("text/mathml", "mml"); |
| // add ".txt" first so it will be the default for guessExtensionFromMimeType |
| add("text/plain", "txt"); |
| add("text/plain", "asc"); |
| add("text/plain", "text"); |
| add("text/plain", "diff"); |
| add("text/plain", "po"); // reserve "pot" for vnd.ms-powerpoint |
| add("text/richtext", "rtx"); |
| add("text/rtf", "rtf"); |
| add("text/text", "phps"); |
| add("text/tab-separated-values", "tsv"); |
| add("text/xml", "xml"); |
| add("text/x-bibtex", "bib"); |
| add("text/x-boo", "boo"); |
| add("text/x-c++hdr", "hpp"); |
| add("text/x-c++hdr", "h++"); |
| add("text/x-c++hdr", "hxx"); |
| add("text/x-c++hdr", "hh"); |
| add("text/x-c++src", "cpp"); |
| add("text/x-c++src", "c++"); |
| add("text/x-c++src", "cc"); |
| add("text/x-c++src", "cxx"); |
| add("text/x-chdr", "h"); |
| add("text/x-component", "htc"); |
| add("text/x-csh", "csh"); |
| add("text/x-csrc", "c"); |
| add("text/x-dsrc", "d"); |
| add("text/x-haskell", "hs"); |
| add("text/x-java", "java"); |
| add("text/x-literate-haskell", "lhs"); |
| add("text/x-moc", "moc"); |
| add("text/x-pascal", "p"); |
| add("text/x-pascal", "pas"); |
| add("text/x-pcs-gcd", "gcd"); |
| add("text/x-setext", "etx"); |
| add("text/x-tcl", "tcl"); |
| add("text/x-tex", "tex"); |
| add("text/x-tex", "ltx"); |
| add("text/x-tex", "sty"); |
| add("text/x-tex", "cls"); |
| add("text/x-vcalendar", "vcs"); |
| add("text/x-vcard", "vcf"); |
| add("video/3gpp", "3gpp"); |
| add("video/3gpp", "3gp"); |
| add("video/3gpp2", "3gpp2"); |
| add("video/3gpp2", "3g2"); |
| add("video/avi", "avi"); |
| add("video/dl", "dl"); |
| add("video/dv", "dif"); |
| add("video/dv", "dv"); |
| add("video/fli", "fli"); |
| add("video/m4v", "m4v"); |
| add("video/mp2ts", "ts"); |
| add("video/mpeg", "mpeg"); |
| add("video/mpeg", "mpg"); |
| add("video/mpeg", "mpe"); |
| add("video/mp4", "mp4"); |
| add("video/mpeg", "VOB"); |
| add("video/quicktime", "qt"); |
| add("video/quicktime", "mov"); |
| add("video/vnd.mpegurl", "mxu"); |
| add("video/webm", "webm"); |
| add("video/x-la-asf", "lsf"); |
| add("video/x-la-asf", "lsx"); |
| add("video/x-matroska", "mkv"); |
| add("video/x-mng", "mng"); |
| add("video/x-ms-asf", "asf"); |
| add("video/x-ms-asf", "asx"); |
| add("video/x-ms-wm", "wm"); |
| add("video/x-ms-wmv", "wmv"); |
| add("video/x-ms-wmx", "wmx"); |
| add("video/x-ms-wvx", "wvx"); |
| add("video/x-sgi-movie", "movie"); |
| add("video/x-webex", "wrf"); |
| add("x-conference/x-cooltalk", "ice"); |
| add("x-epoc/x-sisx-app", "sisx"); |
| } |
| |
| private static void add(String mimeType, String extension) { |
| // If we have an existing x -> y mapping, we do not want to |
| // override it with another mapping x -> y2. |
| // If a mime type maps to several extensions |
| // the first extension added is considered the most popular |
| // so we do not want to overwrite it later. |
| if (!mimeTypeToExtensionMap.containsKey(mimeType)) { |
| mimeTypeToExtensionMap.put(mimeType, extension); |
| } |
| if (!extensionToMimeTypeMap.containsKey(extension)) { |
| extensionToMimeTypeMap.put(extension, mimeType); |
| } |
| } |
| |
| private MimeUtils() { |
| } |
| |
| /** |
| * Returns true if the given MIME type has an entry in the map. |
| * @param mimeType A MIME type (i.e. text/plain) |
| * @return True iff there is a mimeType entry in the map. |
| */ |
| public static boolean hasMimeType(String mimeType) { |
| if (mimeType == null || mimeType.isEmpty()) { |
| return false; |
| } |
| return mimeTypeToExtensionMap.containsKey(mimeType); |
| } |
| |
| /** |
| * Returns the MIME type for the given extension. |
| * @param extension A file extension without the leading '.' |
| * @return The MIME type for the given extension or null iff there is none. |
| */ |
| public static String guessMimeTypeFromExtension(String extension) { |
| if (extension == null || extension.isEmpty()) { |
| return null; |
| } |
| return extensionToMimeTypeMap.get(extension); |
| } |
| |
| /** |
| * Returns true if the given extension has a registered MIME type. |
| * @param extension A file extension without the leading '.' |
| * @return True iff there is an extension entry in the map. |
| */ |
| public static boolean hasExtension(String extension) { |
| if (extension == null || extension.isEmpty()) { |
| return false; |
| } |
| return extensionToMimeTypeMap.containsKey(extension); |
| } |
| |
| /** |
| * Returns the registered extension for the given MIME type. Note that some |
| * MIME types map to multiple extensions. This call will return the most |
| * common extension for the given MIME type. |
| * @param mimeType A MIME type (i.e. text/plain) |
| * @return The extension for the given MIME type or null iff there is none. |
| */ |
| public static String guessExtensionFromMimeType(String mimeType) { |
| if (mimeType == null || mimeType.isEmpty()) { |
| return null; |
| } |
| return mimeTypeToExtensionMap.get(mimeType); |
| } |
| } |
