19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.webkit; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.io.UnsupportedEncodingException; 20cb64d430627b71221c588ef5f23599dd34a89ee9Elliott Hughesimport java.util.Locale; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.regex.Matcher; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.regex.Pattern; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.Uri; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.ParseException; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.net.WebAddress; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic final class URLUtil { 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final String LOGTAG = "webkit"; 32451e338c51e8c45efc0d21536dfae6f78f6d5e06Ignacio Solla private static final boolean TRACE = false; 33bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba 34bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba // to refer to bar.png under your package's asset/foo/ directory, use 35bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba // "file:///android_asset/foo/bar.png". 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final String ASSET_BASE = "file:///android_asset/"; 37bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba // to refer to bar.png under your package's res/drawable/ directory, use 38bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba // "file:///android_res/drawable/bar.png". Use "drawable" to refer to 39bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba // "drawable-hdpi" directory as well. 40bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba static final String RESOURCE_BASE = "file:///android_res/"; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final String FILE_BASE = "file://"; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final String PROXY_BASE = "file:///cookieless_proxy/"; 430fa72ef10e08e35c28176837c733bd085b17e0ffJonathan Dixon static final String CONTENT_BASE = "content:"; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Cleans up (if possible) user-entered web addresses 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static String guessUrl(String inUrl) { 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String retVal = inUrl; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project WebAddress webAddress; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53451e338c51e8c45efc0d21536dfae6f78f6d5e06Ignacio Solla if (TRACE) Log.v(LOGTAG, "guessURL before queueRequest: " + inUrl); 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.length() == 0) return inUrl; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.startsWith("about:")) return inUrl; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not try to interpret data scheme URLs 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.startsWith("data:")) return inUrl; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not try to interpret file scheme URLs 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.startsWith("file:")) return inUrl; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not try to interpret javascript scheme URLs 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.startsWith("javascript:")) return inUrl; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bug 762454: strip period off end of url 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (inUrl.endsWith(".") == true) { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project inUrl = inUrl.substring(0, inUrl.length() - 1); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project webAddress = new WebAddress(inUrl); 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ParseException ex) { 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 73451e338c51e8c45efc0d21536dfae6f78f6d5e06Ignacio Solla if (TRACE) { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.v(LOGTAG, "smartUrlFilter: failed to parse url = " + inUrl); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return retVal; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check host 80eb8be973c7982fe3ece0aeaeca379c3b3cdced0cBjorn Bringert if (webAddress.getHost().indexOf('.') == -1) { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no dot: user probably entered a bare domain. try .com 82eb8be973c7982fe3ece0aeaeca379c3b3cdced0cBjorn Bringert webAddress.setHost("www." + webAddress.getHost() + ".com"); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return webAddress.toString(); 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static String composeSearchUrl(String inQuery, String template, 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String queryPlaceHolder) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int placeHolderIndex = template.indexOf(queryPlaceHolder); 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (placeHolderIndex < 0) { 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String query; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project StringBuilder buffer = new StringBuilder(); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.append(template.substring(0, placeHolderIndex)); 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project query = java.net.URLEncoder.encode(inQuery, "utf-8"); 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.append(query); 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (UnsupportedEncodingException ex) { 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project buffer.append(template.substring( 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project placeHolderIndex + queryPlaceHolder.length())); 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return buffer.toString(); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static byte[] decode(byte[] url) throws IllegalArgumentException { 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (url.length == 0) { 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new byte[0]; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Create a new byte array with the same length to ensure capacity 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] tempData = new byte[url.length]; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int tempCount = 0; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < url.length; i++) { 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte b = url[i]; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (b == '%') { 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (url.length - i > 2) { 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project b = (byte) (parseHex(url[i + 1]) * 16 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + parseHex(url[i + 2])); 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project i += 2; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Invalid format"); 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project tempData[tempCount++] = b; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project byte[] retData = new byte[tempCount]; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(tempData, 0, retData, 0, tempCount); 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return retData; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 138758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba /** 139758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba * @return True iff the url is correctly URL encoded 140758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba */ 141758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba static boolean verifyURLEncoding(String url) { 142758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba int count = url.length(); 143758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba if (count == 0) { 144758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba return false; 145758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } 146758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba 147758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba int index = url.indexOf('%'); 148758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba while (index >= 0 && index < count) { 149758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba if (index < count - 2) { 150758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba try { 151758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba parseHex((byte) url.charAt(++index)); 152758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba parseHex((byte) url.charAt(++index)); 153758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } catch (IllegalArgumentException e) { 154758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba return false; 155758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } 156758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } else { 157758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba return false; 158758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } 159758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba index = url.indexOf('%', index + 1); 160758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } 161758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba return true; 162758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba } 163758bf410843724d31f4ab48e8d7dd6b7c1240f23Grace Kloba 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static int parseHex(byte b) { 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (b >= '0' && b <= '9') return (b - '0'); 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (b >= 'A' && b <= 'F') return (b - 'A' + 10); 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (b >= 'a' && b <= 'f') return (b - 'a' + 10); 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Invalid hex char '" + b + "'"); 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is an asset file. 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isAssetUrl(String url) { 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && url.startsWith(ASSET_BASE); 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 178bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba 179bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba /** 180bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba * @return True iff the url is a resource file. 181bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba * @hide 182bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba */ 183bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba public static boolean isResourceUrl(String url) { 184bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba return (null != url) && url.startsWith(RESOURCE_BASE); 185bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba } 186bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 188f76a50ce8fdc6aea22cabc77b2977a1a15a79630Ken Wakasa * @return True iff the url is a proxy url to allow cookieless network 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * requests from a file url. 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @deprecated Cookieless proxy is no longer supported. 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1924a51c20ce607c74914f90fd897f04080121ac13bDianne Hackborn @Deprecated 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isCookielessProxyUrl(String url) { 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && url.startsWith(PROXY_BASE); 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is a local file. 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isFileUrl(String url) { 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && (url.startsWith(FILE_BASE) && 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project !url.startsWith(ASSET_BASE) && 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project !url.startsWith(PROXY_BASE)); 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is an about: url. 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isAboutUrl(String url) { 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && url.startsWith("about:"); 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is a data: url. 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isDataUrl(String url) { 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && url.startsWith("data:"); 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is a javascript: url. 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isJavaScriptUrl(String url) { 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && url.startsWith("javascript:"); 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is an http: url. 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isHttpUrl(String url) { 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (url.length() > 6) && 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project url.substring(0, 7).equalsIgnoreCase("http://"); 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is an https: url. 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isHttpsUrl(String url) { 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (null != url) && 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (url.length() > 7) && 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project url.substring(0, 8).equalsIgnoreCase("https://"); 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is a network url. 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isNetworkUrl(String url) { 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (url == null || url.length() == 0) { 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return isHttpUrl(url) || isHttpsUrl(url); 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is a content: url. 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isContentUrl(String url) { 2590fa72ef10e08e35c28176837c733bd085b17e0ffJonathan Dixon return (null != url) && url.startsWith(CONTENT_BASE); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True iff the url is valid. 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static boolean isValidUrl(String url) { 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (url == null || url.length() == 0) { 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (isAssetUrl(url) || 271bd5c823e28d907d85b8d0867133343ccda014451Grace Kloba isResourceUrl(url) || 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isFileUrl(url) || 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isAboutUrl(url) || 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isHttpUrl(url) || 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isHttpsUrl(url) || 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isJavaScriptUrl(url) || 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isContentUrl(url)); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Strips the url of the anchor. 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static String stripAnchor(String url) { 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int anchorIndex = url.indexOf('#'); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (anchorIndex != -1) { 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return url.substring(0, anchorIndex); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return url; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 290451e338c51e8c45efc0d21536dfae6f78f6d5e06Ignacio Solla 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Guesses canonical filename that a download would have, using 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the URL and contentDisposition. File extension, if not defined, 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is added based on the mimetype 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param url Url to the content 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param contentDisposition Content-Disposition HTTP header or null 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mimeType Mime-type of the content or null 298451e338c51e8c45efc0d21536dfae6f78f6d5e06Ignacio Solla * 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return suggested filename 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final String guessFileName( 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String url, 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String contentDisposition, 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String mimeType) { 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filename = null; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String extension = null; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we couldn't do anything with the hint, move toward the content disposition 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filename == null && contentDisposition != null) { 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename = parseContentDisposition(contentDisposition); 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filename != null) { 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = filename.lastIndexOf('/') + 1; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index > 0) { 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename = filename.substring(index); 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If all the other http-related approaches failed, use the plain uri 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filename == null) { 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String decodedUrl = Uri.decode(url); 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (decodedUrl != null) { 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int queryIndex = decodedUrl.indexOf('?'); 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If there is a query string strip it, same as desktop browsers 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (queryIndex > 0) { 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project decodedUrl = decodedUrl.substring(0, queryIndex); 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!decodedUrl.endsWith("/")) { 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = decodedUrl.lastIndexOf('/') + 1; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index > 0) { 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename = decodedUrl.substring(index); 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Finally, if couldn't get filename from URI, get a generic filename 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filename == null) { 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename = "downloadfile"; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Split filename between base and extension 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Add an extension if filename does not have one 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dotIndex = filename.indexOf('.'); 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dotIndex < 0) { 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mimeType != null) { 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mimeType); 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extension != null) { 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = "." + extension; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extension == null) { 353cb64d430627b71221c588ef5f23599dd34a89ee9Elliott Hughes if (mimeType != null && mimeType.toLowerCase(Locale.ROOT).startsWith("text/")) { 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mimeType.equalsIgnoreCase("text/html")) { 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = ".html"; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = ".txt"; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = ".bin"; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mimeType != null) { 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Compare the last segment of the extension against the mime type. 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If there's a mismatch, discard the entire extension. 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastDotIndex = filename.lastIndexOf('.'); 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String typeFromExt = MimeTypeMap.getSingleton().getMimeTypeFromExtension( 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename.substring(lastDotIndex + 1)); 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (typeFromExt != null && !typeFromExt.equalsIgnoreCase(mimeType)) { 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = MimeTypeMap.getSingleton().getExtensionFromMimeType(mimeType); 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extension != null) { 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = "." + extension; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (extension == null) { 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extension = filename.substring(dotIndex); 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filename = filename.substring(0, dotIndex); 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return filename + extension; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Regex used to parse content-disposition headers */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final Pattern CONTENT_DISPOSITION_PATTERN = 388208360b22db7bdd940a7005fd44135e8916742afBen Murdoch Pattern.compile("attachment;\\s*filename\\s*=\\s*(\"?)([^\"]*)\\1\\s*$", 389208360b22db7bdd940a7005fd44135e8916742afBen Murdoch Pattern.CASE_INSENSITIVE); 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Parse the Content-Disposition HTTP Header. The format of the header 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is defined here: http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This header provides a filename for content that is going to be 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * downloaded to the file system. We only support the attachment type. 396208360b22db7bdd940a7005fd44135e8916742afBen Murdoch * Note that RFC 2616 specifies the filename value must be double-quoted. 397208360b22db7bdd940a7005fd44135e8916742afBen Murdoch * Unfortunately some servers do not quote the value so to maintain 398208360b22db7bdd940a7005fd44135e8916742afBen Murdoch * consistent behaviour with other browsers, we allow unquoted values too. 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 400f8ddc988dc2d9be2f75e0b0d9aa234dad7c8258dGrace Kloba static String parseContentDisposition(String contentDisposition) { 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matcher m = CONTENT_DISPOSITION_PATTERN.matcher(contentDisposition); 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (m.find()) { 404208360b22db7bdd940a7005fd44135e8916742afBen Murdoch return m.group(2); 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (IllegalStateException ex) { 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This function is defined as returning null when it can't parse the header 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 412