MimeTypeMap.java revision b48fdbe79260b1603cfef5e304e068c29d4bc257
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.webkit;
18
19import java.util.HashMap;
20import java.util.regex.Pattern;
21
22/**
23 * Two-way map that maps MIME-types to file extensions and vice versa.
24 */
25public class MimeTypeMap {
26
27    /**
28     * Singleton MIME-type map instance:
29     */
30    private static MimeTypeMap sMimeTypeMap;
31
32    /**
33     * MIME-type to file extension mapping:
34     */
35    private HashMap<String, String> mMimeTypeToExtensionMap;
36
37    /**
38     * File extension to MIME type mapping:
39     */
40    private HashMap<String, String> mExtensionToMimeTypeMap;
41
42    /**
43     * Creates a new MIME-type map.
44     */
45    private MimeTypeMap() {
46        mMimeTypeToExtensionMap = new HashMap<String, String>();
47        mExtensionToMimeTypeMap = new HashMap<String, String>();
48    }
49
50    /**
51     * Returns the file extension or an empty string iff there is no
52     * extension. This method is a convenience method for obtaining the
53     * extension of a url and has undefined results for other Strings.
54     * @param url
55     * @return The file extension of the given url.
56     */
57    public static String getFileExtensionFromUrl(String url) {
58        if (url != null && url.length() > 0) {
59            int query = url.lastIndexOf('?');
60            if (query > 0) {
61                url = url.substring(0, query);
62            }
63            int filenamePos = url.lastIndexOf('/');
64            String filename =
65                0 <= filenamePos ? url.substring(filenamePos + 1) : url;
66
67            // if the filename contains special characters, we don't
68            // consider it valid for our matching purposes:
69            if (filename.length() > 0 &&
70                Pattern.matches("[a-zA-Z_0-9\\.\\-\\(\\)\\%]+", filename)) {
71                int dotPos = filename.lastIndexOf('.');
72                if (0 <= dotPos) {
73                    return filename.substring(dotPos + 1);
74                }
75            }
76        }
77
78        return "";
79    }
80
81    /**
82     * Load an entry into the map. This does not check if the item already
83     * exists, it trusts the caller!
84     */
85    private void loadEntry(String mimeType, String extension) {
86        //
87        // if we have an existing x --> y mapping, we do not want to
88        // override it with another mapping x --> ?
89        // this is mostly because of the way the mime-type map below
90        // is constructed (if a mime type maps to several extensions
91        // the first extension is considered the most popular and is
92        // added first; we do not want to overwrite it later).
93        //
94        if (!mMimeTypeToExtensionMap.containsKey(mimeType)) {
95            mMimeTypeToExtensionMap.put(mimeType, extension);
96        }
97
98        mExtensionToMimeTypeMap.put(extension, mimeType);
99    }
100
101    /**
102     * Return true if the given MIME type has an entry in the map.
103     * @param mimeType A MIME type (i.e. text/plain)
104     * @return True iff there is a mimeType entry in the map.
105     */
106    public boolean hasMimeType(String mimeType) {
107        if (mimeType != null && mimeType.length() > 0) {
108            return mMimeTypeToExtensionMap.containsKey(mimeType);
109        }
110
111        return false;
112    }
113
114    /**
115     * Return the MIME type for the given extension.
116     * @param extension A file extension without the leading '.'
117     * @return The MIME type for the given extension or null iff there is none.
118     */
119    public String getMimeTypeFromExtension(String extension) {
120        if (extension != null && extension.length() > 0) {
121            return mExtensionToMimeTypeMap.get(extension);
122        }
123
124        return null;
125    }
126
127    // Static method called by jni.
128    private static String mimeTypeFromExtension(String extension) {
129        return getSingleton().getMimeTypeFromExtension(extension);
130    }
131
132    /**
133     * Return true if the given extension has a registered MIME type.
134     * @param extension A file extension without the leading '.'
135     * @return True iff there is an extension entry in the map.
136     */
137    public boolean hasExtension(String extension) {
138        if (extension != null && extension.length() > 0) {
139            return mExtensionToMimeTypeMap.containsKey(extension);
140        }
141        return false;
142    }
143
144    /**
145     * Return the registered extension for the given MIME type. Note that some
146     * MIME types map to multiple extensions. This call will return the most
147     * common extension for the given MIME type.
148     * @param mimeType A MIME type (i.e. text/plain)
149     * @return The extension for the given MIME type or null iff there is none.
150     */
151    public String getExtensionFromMimeType(String mimeType) {
152        if (mimeType != null && mimeType.length() > 0) {
153            return mMimeTypeToExtensionMap.get(mimeType);
154        }
155
156        return null;
157    }
158
159    /**
160     * Get the singleton instance of MimeTypeMap.
161     * @return The singleton instance of the MIME-type map.
162     */
163    public static MimeTypeMap getSingleton() {
164        if (sMimeTypeMap == null) {
165            sMimeTypeMap = new MimeTypeMap();
166
167            // The following table is based on /etc/mime.types data minus
168            // chemical/* MIME types and MIME types that don't map to any
169            // file extensions. We also exclude top-level domain names to
170            // deal with cases like:
171            //
172            // mail.google.com/a/google.com
173            //
174            // and "active" MIME types (due to potential security issues).
175
176            sMimeTypeMap.loadEntry("application/andrew-inset", "ez");
177            sMimeTypeMap.loadEntry("application/dsptype", "tsp");
178            sMimeTypeMap.loadEntry("application/futuresplash", "spl");
179            sMimeTypeMap.loadEntry("application/hta", "hta");
180            sMimeTypeMap.loadEntry("application/mac-binhex40", "hqx");
181            sMimeTypeMap.loadEntry("application/mac-compactpro", "cpt");
182            sMimeTypeMap.loadEntry("application/mathematica", "nb");
183            sMimeTypeMap.loadEntry("application/msaccess", "mdb");
184            sMimeTypeMap.loadEntry("application/oda", "oda");
185            sMimeTypeMap.loadEntry("application/ogg", "ogg");
186            sMimeTypeMap.loadEntry("application/pdf", "pdf");
187            sMimeTypeMap.loadEntry("application/pgp-keys", "key");
188            sMimeTypeMap.loadEntry("application/pgp-signature", "pgp");
189            sMimeTypeMap.loadEntry("application/pics-rules", "prf");
190            sMimeTypeMap.loadEntry("application/rar", "rar");
191            sMimeTypeMap.loadEntry("application/rdf+xml", "rdf");
192            sMimeTypeMap.loadEntry("application/rss+xml", "rss");
193            sMimeTypeMap.loadEntry("application/zip", "zip");
194            sMimeTypeMap.loadEntry("application/vnd.android.package-archive",
195                    "apk");
196            sMimeTypeMap.loadEntry("application/vnd.cinderella", "cdy");
197            sMimeTypeMap.loadEntry("application/vnd.ms-pki.stl", "stl");
198            sMimeTypeMap.loadEntry(
199                    "application/vnd.oasis.opendocument.database", "odb");
200            sMimeTypeMap.loadEntry(
201                    "application/vnd.oasis.opendocument.formula", "odf");
202            sMimeTypeMap.loadEntry(
203                    "application/vnd.oasis.opendocument.graphics", "odg");
204            sMimeTypeMap.loadEntry(
205                    "application/vnd.oasis.opendocument.graphics-template",
206                    "otg");
207            sMimeTypeMap.loadEntry(
208                    "application/vnd.oasis.opendocument.image", "odi");
209            sMimeTypeMap.loadEntry(
210                    "application/vnd.oasis.opendocument.spreadsheet", "ods");
211            sMimeTypeMap.loadEntry(
212                    "application/vnd.oasis.opendocument.spreadsheet-template",
213                    "ots");
214            sMimeTypeMap.loadEntry(
215                    "application/vnd.oasis.opendocument.text", "odt");
216            sMimeTypeMap.loadEntry(
217                    "application/vnd.oasis.opendocument.text-master", "odm");
218            sMimeTypeMap.loadEntry(
219                    "application/vnd.oasis.opendocument.text-template", "ott");
220            sMimeTypeMap.loadEntry(
221                    "application/vnd.oasis.opendocument.text-web", "oth");
222            sMimeTypeMap.loadEntry("application/msword", "doc");
223            sMimeTypeMap.loadEntry("application/msword", "dot");
224            sMimeTypeMap.loadEntry(
225                    "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
226                    "docx");
227            sMimeTypeMap.loadEntry(
228                    "application/vnd.openxmlformats-officedocument.wordprocessingml.template",
229                    "dotx");
230            sMimeTypeMap.loadEntry("application/vnd.ms-excel", "xls");
231            sMimeTypeMap.loadEntry("application/vnd.ms-excel", "xlt");
232            sMimeTypeMap.loadEntry(
233                    "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
234                    "xlsx");
235            sMimeTypeMap.loadEntry(
236                    "application/vnd.openxmlformats-officedocument.spreadsheetml.template",
237                    "xltx");
238            sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "ppt");
239            sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "pot");
240            sMimeTypeMap.loadEntry("application/vnd.ms-powerpoint", "pps");
241            sMimeTypeMap.loadEntry(
242                    "application/vnd.openxmlformats-officedocument.presentationml.presentation",
243                    "pptx");
244            sMimeTypeMap.loadEntry(
245                    "application/vnd.openxmlformats-officedocument.presentationml.template",
246                    "potx");
247            sMimeTypeMap.loadEntry(
248                    "application/vnd.openxmlformats-officedocument.presentationml.slideshow",
249                    "ppsx");
250            sMimeTypeMap.loadEntry("application/vnd.rim.cod", "cod");
251            sMimeTypeMap.loadEntry("application/vnd.smaf", "mmf");
252            sMimeTypeMap.loadEntry("application/vnd.stardivision.calc", "sdc");
253            sMimeTypeMap.loadEntry("application/vnd.stardivision.draw", "sda");
254            sMimeTypeMap.loadEntry(
255                    "application/vnd.stardivision.impress", "sdd");
256            sMimeTypeMap.loadEntry(
257                    "application/vnd.stardivision.impress", "sdp");
258            sMimeTypeMap.loadEntry("application/vnd.stardivision.math", "smf");
259            sMimeTypeMap.loadEntry("application/vnd.stardivision.writer",
260                    "sdw");
261            sMimeTypeMap.loadEntry("application/vnd.stardivision.writer",
262                    "vor");
263            sMimeTypeMap.loadEntry(
264                    "application/vnd.stardivision.writer-global", "sgl");
265            sMimeTypeMap.loadEntry("application/vnd.sun.xml.calc", "sxc");
266            sMimeTypeMap.loadEntry(
267                    "application/vnd.sun.xml.calc.template", "stc");
268            sMimeTypeMap.loadEntry("application/vnd.sun.xml.draw", "sxd");
269            sMimeTypeMap.loadEntry(
270                    "application/vnd.sun.xml.draw.template", "std");
271            sMimeTypeMap.loadEntry("application/vnd.sun.xml.impress", "sxi");
272            sMimeTypeMap.loadEntry(
273                    "application/vnd.sun.xml.impress.template", "sti");
274            sMimeTypeMap.loadEntry("application/vnd.sun.xml.math", "sxm");
275            sMimeTypeMap.loadEntry("application/vnd.sun.xml.writer", "sxw");
276            sMimeTypeMap.loadEntry(
277                    "application/vnd.sun.xml.writer.global", "sxg");
278            sMimeTypeMap.loadEntry(
279                    "application/vnd.sun.xml.writer.template", "stw");
280            sMimeTypeMap.loadEntry("application/vnd.visio", "vsd");
281            sMimeTypeMap.loadEntry("application/x-abiword", "abw");
282            sMimeTypeMap.loadEntry("application/x-apple-diskimage", "dmg");
283            sMimeTypeMap.loadEntry("application/x-bcpio", "bcpio");
284            sMimeTypeMap.loadEntry("application/x-bittorrent", "torrent");
285            sMimeTypeMap.loadEntry("application/x-cdf", "cdf");
286            sMimeTypeMap.loadEntry("application/x-cdlink", "vcd");
287            sMimeTypeMap.loadEntry("application/x-chess-pgn", "pgn");
288            sMimeTypeMap.loadEntry("application/x-cpio", "cpio");
289            sMimeTypeMap.loadEntry("application/x-debian-package", "deb");
290            sMimeTypeMap.loadEntry("application/x-debian-package", "udeb");
291            sMimeTypeMap.loadEntry("application/x-director", "dcr");
292            sMimeTypeMap.loadEntry("application/x-director", "dir");
293            sMimeTypeMap.loadEntry("application/x-director", "dxr");
294            sMimeTypeMap.loadEntry("application/x-dms", "dms");
295            sMimeTypeMap.loadEntry("application/x-doom", "wad");
296            sMimeTypeMap.loadEntry("application/x-dvi", "dvi");
297            sMimeTypeMap.loadEntry("application/x-flac", "flac");
298            sMimeTypeMap.loadEntry("application/x-font", "pfa");
299            sMimeTypeMap.loadEntry("application/x-font", "pfb");
300            sMimeTypeMap.loadEntry("application/x-font", "gsf");
301            sMimeTypeMap.loadEntry("application/x-font", "pcf");
302            sMimeTypeMap.loadEntry("application/x-font", "pcf.Z");
303            sMimeTypeMap.loadEntry("application/x-freemind", "mm");
304            sMimeTypeMap.loadEntry("application/x-futuresplash", "spl");
305            sMimeTypeMap.loadEntry("application/x-gnumeric", "gnumeric");
306            sMimeTypeMap.loadEntry("application/x-go-sgf", "sgf");
307            sMimeTypeMap.loadEntry("application/x-graphing-calculator", "gcf");
308            sMimeTypeMap.loadEntry("application/x-gtar", "gtar");
309            sMimeTypeMap.loadEntry("application/x-gtar", "tgz");
310            sMimeTypeMap.loadEntry("application/x-gtar", "taz");
311            sMimeTypeMap.loadEntry("application/x-hdf", "hdf");
312            sMimeTypeMap.loadEntry("application/x-ica", "ica");
313            sMimeTypeMap.loadEntry("application/x-internet-signup", "ins");
314            sMimeTypeMap.loadEntry("application/x-internet-signup", "isp");
315            sMimeTypeMap.loadEntry("application/x-iphone", "iii");
316            sMimeTypeMap.loadEntry("application/x-iso9660-image", "iso");
317            sMimeTypeMap.loadEntry("application/x-jmol", "jmz");
318            sMimeTypeMap.loadEntry("application/x-kchart", "chrt");
319            sMimeTypeMap.loadEntry("application/x-killustrator", "kil");
320            sMimeTypeMap.loadEntry("application/x-koan", "skp");
321            sMimeTypeMap.loadEntry("application/x-koan", "skd");
322            sMimeTypeMap.loadEntry("application/x-koan", "skt");
323            sMimeTypeMap.loadEntry("application/x-koan", "skm");
324            sMimeTypeMap.loadEntry("application/x-kpresenter", "kpr");
325            sMimeTypeMap.loadEntry("application/x-kpresenter", "kpt");
326            sMimeTypeMap.loadEntry("application/x-kspread", "ksp");
327            sMimeTypeMap.loadEntry("application/x-kword", "kwd");
328            sMimeTypeMap.loadEntry("application/x-kword", "kwt");
329            sMimeTypeMap.loadEntry("application/x-latex", "latex");
330            sMimeTypeMap.loadEntry("application/x-lha", "lha");
331            sMimeTypeMap.loadEntry("application/x-lzh", "lzh");
332            sMimeTypeMap.loadEntry("application/x-lzx", "lzx");
333            sMimeTypeMap.loadEntry("application/x-maker", "frm");
334            sMimeTypeMap.loadEntry("application/x-maker", "maker");
335            sMimeTypeMap.loadEntry("application/x-maker", "frame");
336            sMimeTypeMap.loadEntry("application/x-maker", "fb");
337            sMimeTypeMap.loadEntry("application/x-maker", "book");
338            sMimeTypeMap.loadEntry("application/x-maker", "fbdoc");
339            sMimeTypeMap.loadEntry("application/x-mif", "mif");
340            sMimeTypeMap.loadEntry("application/x-ms-wmd", "wmd");
341            sMimeTypeMap.loadEntry("application/x-ms-wmz", "wmz");
342            sMimeTypeMap.loadEntry("application/x-msi", "msi");
343            sMimeTypeMap.loadEntry("application/x-ns-proxy-autoconfig", "pac");
344            sMimeTypeMap.loadEntry("application/x-nwc", "nwc");
345            sMimeTypeMap.loadEntry("application/x-object", "o");
346            sMimeTypeMap.loadEntry("application/x-oz-application", "oza");
347            sMimeTypeMap.loadEntry("application/x-pkcs12", "p12");
348            sMimeTypeMap.loadEntry("application/x-pkcs7-certreqresp", "p7r");
349            sMimeTypeMap.loadEntry("application/x-pkcs7-crl", "crl");
350            sMimeTypeMap.loadEntry("application/x-quicktimeplayer", "qtl");
351            sMimeTypeMap.loadEntry("application/x-shar", "shar");
352            sMimeTypeMap.loadEntry("application/x-shockwave-flash", "swf");
353            sMimeTypeMap.loadEntry("application/x-stuffit", "sit");
354            sMimeTypeMap.loadEntry("application/x-sv4cpio", "sv4cpio");
355            sMimeTypeMap.loadEntry("application/x-sv4crc", "sv4crc");
356            sMimeTypeMap.loadEntry("application/x-tar", "tar");
357            sMimeTypeMap.loadEntry("application/x-texinfo", "texinfo");
358            sMimeTypeMap.loadEntry("application/x-texinfo", "texi");
359            sMimeTypeMap.loadEntry("application/x-troff", "t");
360            sMimeTypeMap.loadEntry("application/x-troff", "roff");
361            sMimeTypeMap.loadEntry("application/x-troff-man", "man");
362            sMimeTypeMap.loadEntry("application/x-ustar", "ustar");
363            sMimeTypeMap.loadEntry("application/x-wais-source", "src");
364            sMimeTypeMap.loadEntry("application/x-wingz", "wz");
365            sMimeTypeMap.loadEntry("application/x-webarchive", "webarchive");
366            sMimeTypeMap.loadEntry("application/x-webarchive-xml", "webarchivexml");
367            sMimeTypeMap.loadEntry("application/x-x509-ca-cert", "crt");
368            sMimeTypeMap.loadEntry("application/x-x509-user-cert", "crt");
369            sMimeTypeMap.loadEntry("application/x-xcf", "xcf");
370            sMimeTypeMap.loadEntry("application/x-xfig", "fig");
371            sMimeTypeMap.loadEntry("application/xhtml+xml", "xhtml");
372            sMimeTypeMap.loadEntry("audio/3gpp", "3gpp");
373            sMimeTypeMap.loadEntry("audio/amr", "amr");
374            sMimeTypeMap.loadEntry("audio/basic", "snd");
375            sMimeTypeMap.loadEntry("audio/midi", "mid");
376            sMimeTypeMap.loadEntry("audio/midi", "midi");
377            sMimeTypeMap.loadEntry("audio/midi", "kar");
378            sMimeTypeMap.loadEntry("audio/midi", "xmf");
379            sMimeTypeMap.loadEntry("audio/mobile-xmf", "mxmf");
380            sMimeTypeMap.loadEntry("audio/mpeg", "mpga");
381            sMimeTypeMap.loadEntry("audio/mpeg", "mpega");
382            sMimeTypeMap.loadEntry("audio/mpeg", "mp2");
383            sMimeTypeMap.loadEntry("audio/mpeg", "mp3");
384            sMimeTypeMap.loadEntry("audio/mpeg", "m4a");
385            sMimeTypeMap.loadEntry("audio/mpegurl", "m3u");
386            sMimeTypeMap.loadEntry("audio/prs.sid", "sid");
387            sMimeTypeMap.loadEntry("audio/x-aiff", "aif");
388            sMimeTypeMap.loadEntry("audio/x-aiff", "aiff");
389            sMimeTypeMap.loadEntry("audio/x-aiff", "aifc");
390            sMimeTypeMap.loadEntry("audio/x-gsm", "gsm");
391            sMimeTypeMap.loadEntry("audio/x-mpegurl", "m3u");
392            sMimeTypeMap.loadEntry("audio/x-ms-wma", "wma");
393            sMimeTypeMap.loadEntry("audio/x-ms-wax", "wax");
394            sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "ra");
395            sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "rm");
396            sMimeTypeMap.loadEntry("audio/x-pn-realaudio", "ram");
397            sMimeTypeMap.loadEntry("audio/x-realaudio", "ra");
398            sMimeTypeMap.loadEntry("audio/x-scpls", "pls");
399            sMimeTypeMap.loadEntry("audio/x-sd2", "sd2");
400            sMimeTypeMap.loadEntry("audio/x-wav", "wav");
401            sMimeTypeMap.loadEntry("image/bmp", "bmp");
402            sMimeTypeMap.loadEntry("image/gif", "gif");
403            sMimeTypeMap.loadEntry("image/ico", "cur");
404            sMimeTypeMap.loadEntry("image/ico", "ico");
405            sMimeTypeMap.loadEntry("image/ief", "ief");
406            sMimeTypeMap.loadEntry("image/jpeg", "jpeg");
407            sMimeTypeMap.loadEntry("image/jpeg", "jpg");
408            sMimeTypeMap.loadEntry("image/jpeg", "jpe");
409            sMimeTypeMap.loadEntry("image/pcx", "pcx");
410            sMimeTypeMap.loadEntry("image/png", "png");
411            sMimeTypeMap.loadEntry("image/svg+xml", "svg");
412            sMimeTypeMap.loadEntry("image/svg+xml", "svgz");
413            sMimeTypeMap.loadEntry("image/tiff", "tiff");
414            sMimeTypeMap.loadEntry("image/tiff", "tif");
415            sMimeTypeMap.loadEntry("image/vnd.djvu", "djvu");
416            sMimeTypeMap.loadEntry("image/vnd.djvu", "djv");
417            sMimeTypeMap.loadEntry("image/vnd.wap.wbmp", "wbmp");
418            sMimeTypeMap.loadEntry("image/x-cmu-raster", "ras");
419            sMimeTypeMap.loadEntry("image/x-coreldraw", "cdr");
420            sMimeTypeMap.loadEntry("image/x-coreldrawpattern", "pat");
421            sMimeTypeMap.loadEntry("image/x-coreldrawtemplate", "cdt");
422            sMimeTypeMap.loadEntry("image/x-corelphotopaint", "cpt");
423            sMimeTypeMap.loadEntry("image/x-icon", "ico");
424            sMimeTypeMap.loadEntry("image/x-jg", "art");
425            sMimeTypeMap.loadEntry("image/x-jng", "jng");
426            sMimeTypeMap.loadEntry("image/x-ms-bmp", "bmp");
427            sMimeTypeMap.loadEntry("image/x-photoshop", "psd");
428            sMimeTypeMap.loadEntry("image/x-portable-anymap", "pnm");
429            sMimeTypeMap.loadEntry("image/x-portable-bitmap", "pbm");
430            sMimeTypeMap.loadEntry("image/x-portable-graymap", "pgm");
431            sMimeTypeMap.loadEntry("image/x-portable-pixmap", "ppm");
432            sMimeTypeMap.loadEntry("image/x-rgb", "rgb");
433            sMimeTypeMap.loadEntry("image/x-xbitmap", "xbm");
434            sMimeTypeMap.loadEntry("image/x-xpixmap", "xpm");
435            sMimeTypeMap.loadEntry("image/x-xwindowdump", "xwd");
436            sMimeTypeMap.loadEntry("model/iges", "igs");
437            sMimeTypeMap.loadEntry("model/iges", "iges");
438            sMimeTypeMap.loadEntry("model/mesh", "msh");
439            sMimeTypeMap.loadEntry("model/mesh", "mesh");
440            sMimeTypeMap.loadEntry("model/mesh", "silo");
441            sMimeTypeMap.loadEntry("text/calendar", "ics");
442            sMimeTypeMap.loadEntry("text/calendar", "icz");
443            sMimeTypeMap.loadEntry("text/comma-separated-values", "csv");
444            sMimeTypeMap.loadEntry("text/css", "css");
445            sMimeTypeMap.loadEntry("text/html", "htm");
446            sMimeTypeMap.loadEntry("text/html", "html");
447            sMimeTypeMap.loadEntry("text/h323", "323");
448            sMimeTypeMap.loadEntry("text/iuls", "uls");
449            sMimeTypeMap.loadEntry("text/mathml", "mml");
450            // add it first so it will be the default for ExtensionFromMimeType
451            sMimeTypeMap.loadEntry("text/plain", "txt");
452            sMimeTypeMap.loadEntry("text/plain", "asc");
453            sMimeTypeMap.loadEntry("text/plain", "text");
454            sMimeTypeMap.loadEntry("text/plain", "diff");
455            sMimeTypeMap.loadEntry("text/plain", "po");     // reserve "pot" for vnd.ms-powerpoint
456            sMimeTypeMap.loadEntry("text/richtext", "rtx");
457            sMimeTypeMap.loadEntry("text/rtf", "rtf");
458            sMimeTypeMap.loadEntry("text/texmacs", "ts");
459            sMimeTypeMap.loadEntry("text/text", "phps");
460            sMimeTypeMap.loadEntry("text/tab-separated-values", "tsv");
461            sMimeTypeMap.loadEntry("text/xml", "xml");
462            sMimeTypeMap.loadEntry("text/x-bibtex", "bib");
463            sMimeTypeMap.loadEntry("text/x-boo", "boo");
464            sMimeTypeMap.loadEntry("text/x-c++hdr", "h++");
465            sMimeTypeMap.loadEntry("text/x-c++hdr", "hpp");
466            sMimeTypeMap.loadEntry("text/x-c++hdr", "hxx");
467            sMimeTypeMap.loadEntry("text/x-c++hdr", "hh");
468            sMimeTypeMap.loadEntry("text/x-c++src", "c++");
469            sMimeTypeMap.loadEntry("text/x-c++src", "cpp");
470            sMimeTypeMap.loadEntry("text/x-c++src", "cxx");
471            sMimeTypeMap.loadEntry("text/x-chdr", "h");
472            sMimeTypeMap.loadEntry("text/x-component", "htc");
473            sMimeTypeMap.loadEntry("text/x-csh", "csh");
474            sMimeTypeMap.loadEntry("text/x-csrc", "c");
475            sMimeTypeMap.loadEntry("text/x-dsrc", "d");
476            sMimeTypeMap.loadEntry("text/x-haskell", "hs");
477            sMimeTypeMap.loadEntry("text/x-java", "java");
478            sMimeTypeMap.loadEntry("text/x-literate-haskell", "lhs");
479            sMimeTypeMap.loadEntry("text/x-moc", "moc");
480            sMimeTypeMap.loadEntry("text/x-pascal", "p");
481            sMimeTypeMap.loadEntry("text/x-pascal", "pas");
482            sMimeTypeMap.loadEntry("text/x-pcs-gcd", "gcd");
483            sMimeTypeMap.loadEntry("text/x-setext", "etx");
484            sMimeTypeMap.loadEntry("text/x-tcl", "tcl");
485            sMimeTypeMap.loadEntry("text/x-tex", "tex");
486            sMimeTypeMap.loadEntry("text/x-tex", "ltx");
487            sMimeTypeMap.loadEntry("text/x-tex", "sty");
488            sMimeTypeMap.loadEntry("text/x-tex", "cls");
489            sMimeTypeMap.loadEntry("text/x-vcalendar", "vcs");
490            sMimeTypeMap.loadEntry("text/x-vcard", "vcf");
491            sMimeTypeMap.loadEntry("video/3gpp", "3gpp");
492            sMimeTypeMap.loadEntry("video/3gpp", "3gp");
493            sMimeTypeMap.loadEntry("video/3gpp", "3g2");
494            sMimeTypeMap.loadEntry("video/dl", "dl");
495            sMimeTypeMap.loadEntry("video/dv", "dif");
496            sMimeTypeMap.loadEntry("video/dv", "dv");
497            sMimeTypeMap.loadEntry("video/fli", "fli");
498            sMimeTypeMap.loadEntry("video/m4v", "m4v");
499            sMimeTypeMap.loadEntry("video/mpeg", "mpeg");
500            sMimeTypeMap.loadEntry("video/mpeg", "mpg");
501            sMimeTypeMap.loadEntry("video/mpeg", "mpe");
502            sMimeTypeMap.loadEntry("video/mp4", "mp4");
503            sMimeTypeMap.loadEntry("video/mpeg", "VOB");
504            sMimeTypeMap.loadEntry("video/quicktime", "qt");
505            sMimeTypeMap.loadEntry("video/quicktime", "mov");
506            sMimeTypeMap.loadEntry("video/vnd.mpegurl", "mxu");
507            sMimeTypeMap.loadEntry("video/x-la-asf", "lsf");
508            sMimeTypeMap.loadEntry("video/x-la-asf", "lsx");
509            sMimeTypeMap.loadEntry("video/x-mng", "mng");
510            sMimeTypeMap.loadEntry("video/x-ms-asf", "asf");
511            sMimeTypeMap.loadEntry("video/x-ms-asf", "asx");
512            sMimeTypeMap.loadEntry("video/x-ms-wm", "wm");
513            sMimeTypeMap.loadEntry("video/x-ms-wmv", "wmv");
514            sMimeTypeMap.loadEntry("video/x-ms-wmx", "wmx");
515            sMimeTypeMap.loadEntry("video/x-ms-wvx", "wvx");
516            sMimeTypeMap.loadEntry("video/x-msvideo", "avi");
517            sMimeTypeMap.loadEntry("video/x-sgi-movie", "movie");
518            sMimeTypeMap.loadEntry("x-conference/x-cooltalk", "ice");
519            sMimeTypeMap.loadEntry("x-epoc/x-sisx-app", "sisx");
520        }
521
522        return sMimeTypeMap;
523    }
524}
525