1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 3 * Copyright (C) 2009 Google Inc. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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 COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 #include "platform/clipboard/ClipboardUtilities.h" 29 30 #include "wtf/text/WTFString.h" 31 32 namespace blink { 33 34 // On POSIX systems, the typical filename length limit is 255 character units. HFS+'s limit is 35 // actually 255 Unicode characters using Apple's modification of Normzliation Form D, but the 36 // differences aren't really worth dealing with here. 37 static const unsigned maxFilenameLength = 255; 38 39 static bool isInvalidFileCharacter(UChar c) 40 { 41 // HFS+ disallows '/' and Linux systems also disallow null. For sanity's sake we'll also 42 // disallow control characters. 43 return c < ' ' || c == 0x7F || c == '/'; 44 } 45 46 void validateFilename(String& name, String& extension) 47 { 48 // Remove any invalid file system characters, especially "/". 49 name = name.removeCharacters(&isInvalidFileCharacter); 50 extension = extension.removeCharacters(&isInvalidFileCharacter); 51 52 // Remove a ridiculously-long extension. 53 if (extension.length() >= maxFilenameLength) 54 extension = String(); 55 56 // Truncate an overly-long filename, reserving one character for a dot. 57 name.truncate(maxFilenameLength - extension.length() - 1); 58 } 59 60 } // namespace blink 61
