1 /* 2 * Copyright (C) 2007, 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "FileSystem.h" 28 29 #include <wtf/HexNumber.h> 30 31 namespace WebCore { 32 33 // The following lower-ASCII characters need escaping to be used in a filename 34 // across all systems, including Windows: 35 // - Unprintable ASCII (00-1F) 36 // - Space (20) 37 // - Double quote (22) 38 // - Percent (25) (escaped because it is our escape character) 39 // - Asterisk (2A) 40 // - Slash (2F) 41 // - Colon (3A) 42 // - Less-than (3C) 43 // - Greater-than (3E) 44 // - Question Mark (3F) 45 // - Backslash (5C) 46 // - Pipe (7C) 47 // - Delete (7F) 48 49 static const bool needsEscaping[128] = { 50 /* 00-07 */ true, true, true, true, true, true, true, true, 51 /* 08-0F */ true, true, true, true, true, true, true, true, 52 53 /* 10-17 */ true, true, true, true, true, true, true, true, 54 /* 18-1F */ true, true, true, true, true, true, true, true, 55 56 /* 20-27 */ true, false, true, false, false, true, false, false, 57 /* 28-2F */ false, false, true, false, false, false, false, true, 58 59 /* 30-37 */ false, false, false, false, false, false, false, false, 60 /* 38-3F */ false, false, true, false, true, false, true, true, 61 62 /* 40-47 */ false, false, false, false, false, false, false, false, 63 /* 48-4F */ false, false, false, false, false, false, false, false, 64 65 /* 50-57 */ false, false, false, false, false, false, false, false, 66 /* 58-5F */ false, false, false, false, true, false, false, false, 67 68 /* 60-67 */ false, false, false, false, false, false, false, false, 69 /* 68-6F */ false, false, false, false, false, false, false, false, 70 71 /* 70-77 */ false, false, false, false, false, false, false, false, 72 /* 78-7F */ false, false, false, false, true, false, false, true, 73 }; 74 75 static inline bool shouldEscapeUChar(UChar c) 76 { 77 return c > 127 ? false : needsEscaping[c]; 78 } 79 80 String encodeForFileName(const String& inputStr) 81 { 82 unsigned length = inputStr.length(); 83 Vector<UChar, 512> buffer(length * 3 + 1); 84 UChar* p = buffer.data(); 85 86 const UChar* str = inputStr.characters(); 87 const UChar* strEnd = str + length; 88 89 while (str < strEnd) { 90 UChar c = *str++; 91 if (shouldEscapeUChar(c)) { 92 *p++ = '%'; 93 placeByteAsHex(c, p); 94 } else 95 *p++ = c; 96 } 97 98 ASSERT(p - buffer.data() <= static_cast<int>(buffer.size())); 99 100 return String(buffer.data(), p - buffer.data()); 101 } 102 103 #if !PLATFORM(MAC) 104 105 bool canExcludeFromBackup() 106 { 107 return false; 108 } 109 110 bool excludeFromBackup(const String&) 111 { 112 return false; 113 } 114 115 #endif 116 117 } // namespace WebCore 118
