1 /* 2 * Copyright (C) 2010 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef BlobURL_h 32 #define BlobURL_h 33 34 #include "KURL.h" 35 36 namespace WebCore { 37 38 class SecurityOrigin; 39 40 // Blob URLs are of the form 41 // blob:%escaped_origin%/%UUID% 42 // For public urls, the origin of the host page is encoded in the URL value to 43 // allow easy lookup of the origin when security checks need to be performed. 44 // When loading blobs via ResourceHandle or when reading blobs via FileReader 45 // the loader conducts security checks that examine the origin of host page 46 // encoded in the public blob url. The origin baked into internal blob urls 47 // is a simple constant value, "blobinternal://", internal urls should not 48 // be used with ResourceHandle or FileReader. 49 class BlobURL { 50 public: 51 static KURL createPublicURL(SecurityOrigin*); 52 static KURL createInternalURL(); 53 static String getIdentifier(const KURL&); blobProtocol()54 static const char* blobProtocol() { return kBlobProtocol; } 55 56 private: 57 static KURL createBlobURL(const String& originString); 58 static const char kBlobProtocol[]; BlobURL()59 BlobURL() { } 60 }; 61 62 } 63 64 #endif // BlobURL_h 65