1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaf_classes/com/sun/activation/registries/MimeTypeFile.java Wed Apr 27 01:27:09 2016 +0800
1.3 @@ -0,0 +1,317 @@
1.4 +/*
1.5 + * Copyright (c) 1997, 2003, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.activation.registries;
1.30 +
1.31 +import java.io.*;
1.32 +import java.util.*;
1.33 +
1.34 +public class MimeTypeFile {
1.35 + private String fname = null;
1.36 + private Hashtable type_hash = new Hashtable();
1.37 +
1.38 + /**
1.39 + * The construtor that takes a filename as an argument.
1.40 + *
1.41 + * @param new_fname The file name of the mime types file.
1.42 + */
1.43 + public MimeTypeFile(String new_fname) throws IOException {
1.44 + File mime_file = null;
1.45 + FileReader fr = null;
1.46 +
1.47 + fname = new_fname; // remember the file name
1.48 +
1.49 + mime_file = new File(fname); // get a file object
1.50 +
1.51 + fr = new FileReader(mime_file);
1.52 +
1.53 + try {
1.54 + parse(new BufferedReader(fr));
1.55 + } finally {
1.56 + try {
1.57 + fr.close(); // close it
1.58 + } catch (IOException e) {
1.59 + // ignore it
1.60 + }
1.61 + }
1.62 + }
1.63 +
1.64 + public MimeTypeFile(InputStream is) throws IOException {
1.65 + parse(new BufferedReader(new InputStreamReader(is, "iso-8859-1")));
1.66 + }
1.67 +
1.68 + /**
1.69 + * Creates an empty DB.
1.70 + */
1.71 + public MimeTypeFile() {
1.72 + }
1.73 +
1.74 + /**
1.75 + * get the MimeTypeEntry based on the file extension
1.76 + */
1.77 + public MimeTypeEntry getMimeTypeEntry(String file_ext) {
1.78 + return (MimeTypeEntry)type_hash.get((Object)file_ext);
1.79 + }
1.80 +
1.81 + /**
1.82 + * Get the MIME type string corresponding to the file extension.
1.83 + */
1.84 + public String getMIMETypeString(String file_ext) {
1.85 + MimeTypeEntry entry = this.getMimeTypeEntry(file_ext);
1.86 +
1.87 + if (entry != null)
1.88 + return entry.getMIMEType();
1.89 + else
1.90 + return null;
1.91 + }
1.92 +
1.93 + /**
1.94 + * Appends string of entries to the types registry, must be valid
1.95 + * .mime.types format.
1.96 + * A mime.types entry is one of two forms:
1.97 + *
1.98 + * type/subtype ext1 ext2 ...
1.99 + * or
1.100 + * type=type/subtype desc="description of type" exts=ext1,ext2,...
1.101 + *
1.102 + * Example:
1.103 + * # this is a test
1.104 + * audio/basic au
1.105 + * text/plain txt text
1.106 + * type=application/postscript exts=ps,eps
1.107 + */
1.108 + public void appendToRegistry(String mime_types) {
1.109 + try {
1.110 + parse(new BufferedReader(new StringReader(mime_types)));
1.111 + } catch (IOException ex) {
1.112 + // can't happen
1.113 + }
1.114 + }
1.115 +
1.116 + /**
1.117 + * Parse a stream of mime.types entries.
1.118 + */
1.119 + private void parse(BufferedReader buf_reader) throws IOException {
1.120 + String line = null, prev = null;
1.121 +
1.122 + while ((line = buf_reader.readLine()) != null) {
1.123 + if (prev == null)
1.124 + prev = line;
1.125 + else
1.126 + prev += line;
1.127 + int end = prev.length();
1.128 + if (prev.length() > 0 && prev.charAt(end - 1) == '\\') {
1.129 + prev = prev.substring(0, end - 1);
1.130 + continue;
1.131 + }
1.132 + this.parseEntry(prev);
1.133 + prev = null;
1.134 + }
1.135 + if (prev != null)
1.136 + this.parseEntry(prev);
1.137 + }
1.138 +
1.139 + /**
1.140 + * Parse single mime.types entry.
1.141 + */
1.142 + private void parseEntry(String line) {
1.143 + String mime_type = null;
1.144 + String file_ext = null;
1.145 + line = line.trim();
1.146 +
1.147 + if (line.length() == 0) // empty line...
1.148 + return; // BAIL!
1.149 +
1.150 + // check to see if this is a comment line?
1.151 + if (line.charAt(0) == '#')
1.152 + return; // then we are done!
1.153 +
1.154 + // is it a new format line or old format?
1.155 + if (line.indexOf('=') > 0) {
1.156 + // new format
1.157 + LineTokenizer lt = new LineTokenizer(line);
1.158 + while (lt.hasMoreTokens()) {
1.159 + String name = lt.nextToken();
1.160 + String value = null;
1.161 + if (lt.hasMoreTokens() && lt.nextToken().equals("=") &&
1.162 + lt.hasMoreTokens())
1.163 + value = lt.nextToken();
1.164 + if (value == null) {
1.165 + if (LogSupport.isLoggable())
1.166 + LogSupport.log("Bad .mime.types entry: " + line);
1.167 + return;
1.168 + }
1.169 + if (name.equals("type"))
1.170 + mime_type = value;
1.171 + else if (name.equals("exts")) {
1.172 + StringTokenizer st = new StringTokenizer(value, ",");
1.173 + while (st.hasMoreTokens()) {
1.174 + file_ext = st.nextToken();
1.175 + MimeTypeEntry entry =
1.176 + new MimeTypeEntry(mime_type, file_ext);
1.177 + type_hash.put(file_ext, entry);
1.178 + if (LogSupport.isLoggable())
1.179 + LogSupport.log("Added: " + entry.toString());
1.180 + }
1.181 + }
1.182 + }
1.183 + } else {
1.184 + // old format
1.185 + // count the tokens
1.186 + StringTokenizer strtok = new StringTokenizer(line);
1.187 + int num_tok = strtok.countTokens();
1.188 +
1.189 + if (num_tok == 0) // empty line
1.190 + return;
1.191 +
1.192 + mime_type = strtok.nextToken(); // get the MIME type
1.193 +
1.194 + while (strtok.hasMoreTokens()) {
1.195 + MimeTypeEntry entry = null;
1.196 +
1.197 + file_ext = strtok.nextToken();
1.198 + entry = new MimeTypeEntry(mime_type, file_ext);
1.199 + type_hash.put(file_ext, entry);
1.200 + if (LogSupport.isLoggable())
1.201 + LogSupport.log("Added: " + entry.toString());
1.202 + }
1.203 + }
1.204 + }
1.205 +
1.206 + // for debugging
1.207 + /*
1.208 + public static void main(String[] argv) throws Exception {
1.209 + MimeTypeFile mf = new MimeTypeFile(argv[0]);
1.210 + System.out.println("ext " + argv[1] + " type " +
1.211 + mf.getMIMETypeString(argv[1]));
1.212 + System.exit(0);
1.213 + }
1.214 + */
1.215 +}
1.216 +
1.217 +class LineTokenizer {
1.218 + private int currentPosition;
1.219 + private int maxPosition;
1.220 + private String str;
1.221 + private Vector stack = new Vector();
1.222 + private static final String singles = "="; // single character tokens
1.223 +
1.224 + /**
1.225 + * Constructs a tokenizer for the specified string.
1.226 + * <p>
1.227 + *
1.228 + * @param str a string to be parsed.
1.229 + */
1.230 + public LineTokenizer(String str) {
1.231 + currentPosition = 0;
1.232 + this.str = str;
1.233 + maxPosition = str.length();
1.234 + }
1.235 +
1.236 + /**
1.237 + * Skips white space.
1.238 + */
1.239 + private void skipWhiteSpace() {
1.240 + while ((currentPosition < maxPosition) &&
1.241 + Character.isWhitespace(str.charAt(currentPosition))) {
1.242 + currentPosition++;
1.243 + }
1.244 + }
1.245 +
1.246 + /**
1.247 + * Tests if there are more tokens available from this tokenizer's string.
1.248 + *
1.249 + * @return <code>true</code> if there are more tokens available from this
1.250 + * tokenizer's string; <code>false</code> otherwise.
1.251 + */
1.252 + public boolean hasMoreTokens() {
1.253 + if (stack.size() > 0)
1.254 + return true;
1.255 + skipWhiteSpace();
1.256 + return (currentPosition < maxPosition);
1.257 + }
1.258 +
1.259 + /**
1.260 + * Returns the next token from this tokenizer.
1.261 + *
1.262 + * @return the next token from this tokenizer.
1.263 + * @exception NoSuchElementException if there are no more tokens in this
1.264 + * tokenizer's string.
1.265 + */
1.266 + public String nextToken() {
1.267 + int size = stack.size();
1.268 + if (size > 0) {
1.269 + String t = (String)stack.elementAt(size - 1);
1.270 + stack.removeElementAt(size - 1);
1.271 + return t;
1.272 + }
1.273 + skipWhiteSpace();
1.274 +
1.275 + if (currentPosition >= maxPosition) {
1.276 + throw new NoSuchElementException();
1.277 + }
1.278 +
1.279 + int start = currentPosition;
1.280 + char c = str.charAt(start);
1.281 + if (c == '"') {
1.282 + currentPosition++;
1.283 + boolean filter = false;
1.284 + while (currentPosition < maxPosition) {
1.285 + c = str.charAt(currentPosition++);
1.286 + if (c == '\\') {
1.287 + currentPosition++;
1.288 + filter = true;
1.289 + } else if (c == '"') {
1.290 + String s;
1.291 +
1.292 + if (filter) {
1.293 + StringBuffer sb = new StringBuffer();
1.294 + for (int i = start + 1; i < currentPosition - 1; i++) {
1.295 + c = str.charAt(i);
1.296 + if (c != '\\')
1.297 + sb.append(c);
1.298 + }
1.299 + s = sb.toString();
1.300 + } else
1.301 + s = str.substring(start + 1, currentPosition - 1);
1.302 + return s;
1.303 + }
1.304 + }
1.305 + } else if (singles.indexOf(c) >= 0) {
1.306 + currentPosition++;
1.307 + } else {
1.308 + while ((currentPosition < maxPosition) &&
1.309 + singles.indexOf(str.charAt(currentPosition)) < 0 &&
1.310 + !Character.isWhitespace(str.charAt(currentPosition))) {
1.311 + currentPosition++;
1.312 + }
1.313 + }
1.314 + return str.substring(start, currentPosition);
1.315 + }
1.316 +
1.317 + public void pushToken(String token) {
1.318 + stack.addElement(token);
1.319 + }
1.320 +}
