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| 1 /* | |
| 2 * Copyright (C) 2011 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 | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "sky/engine/core/fetch/RawResource.h" | |
| 27 | |
| 28 #include "sky/engine/core/fetch/ResourceClientWalker.h" | |
| 29 #include "sky/engine/core/fetch/ResourceFetcher.h" | |
| 30 #include "sky/engine/core/fetch/ResourceLoader.h" | |
| 31 #include "sky/engine/platform/SharedBuffer.h" | |
| 32 | |
| 33 namespace blink { | |
| 34 | |
| 35 RawResource::RawResource(const ResourceRequest& resourceRequest, Type type) | |
| 36 : Resource(resourceRequest, type) | |
| 37 { | |
| 38 } | |
| 39 | |
| 40 void RawResource::appendData(const char* data, int length) | |
| 41 { | |
| 42 Resource::appendData(data, length); | |
| 43 | |
| 44 ResourcePtr<RawResource> protect(this); | |
| 45 ResourceClientWalker<RawResourceClient> w(m_clients); | |
| 46 while (RawResourceClient* c = w.next()) | |
| 47 c->dataReceived(this, data, length); | |
| 48 } | |
| 49 | |
| 50 void RawResource::didAddClient(ResourceClient* c) | |
| 51 { | |
| 52 if (!hasClient(c)) | |
| 53 return; | |
| 54 // The calls to the client can result in events running, potentially causing | |
| 55 // this resource to be evicted from the cache and all clients to be removed, | |
| 56 // so a protector is necessary. | |
| 57 ResourcePtr<RawResource> protect(this); | |
| 58 RawResourceClient* client = static_cast<RawResourceClient*>(c); | |
| 59 | |
| 60 if (!m_response.isNull()) | |
| 61 client->responseReceived(this, m_response); | |
| 62 if (!hasClient(c)) | |
| 63 return; | |
| 64 if (m_data) | |
| 65 client->dataReceived(this, m_data->data(), m_data->size()); | |
| 66 if (!hasClient(c)) | |
| 67 return; | |
| 68 Resource::didAddClient(client); | |
| 69 } | |
| 70 | |
| 71 void RawResource::willSendRequest(ResourceRequest& request, const ResourceRespon
se& response) | |
| 72 { | |
| 73 Resource::willSendRequest(request, response); | |
| 74 } | |
| 75 | |
| 76 void RawResource::updateRequest(const ResourceRequest& request) | |
| 77 { | |
| 78 ResourcePtr<RawResource> protect(this); | |
| 79 ResourceClientWalker<RawResourceClient> w(m_clients); | |
| 80 while (RawResourceClient* c = w.next()) | |
| 81 c->updateRequest(this, request); | |
| 82 } | |
| 83 | |
| 84 void RawResource::responseReceived(const ResourceResponse& response) | |
| 85 { | |
| 86 InternalResourcePtr protect(this); | |
| 87 Resource::responseReceived(response); | |
| 88 ResourceClientWalker<RawResourceClient> w(m_clients); | |
| 89 while (RawResourceClient* c = w.next()) | |
| 90 c->responseReceived(this, m_response); | |
| 91 } | |
| 92 | |
| 93 void RawResource::didSendData(unsigned long long bytesSent, unsigned long long t
otalBytesToBeSent) | |
| 94 { | |
| 95 ResourceClientWalker<RawResourceClient> w(m_clients); | |
| 96 while (RawResourceClient* c = w.next()) | |
| 97 c->dataSent(this, bytesSent, totalBytesToBeSent); | |
| 98 } | |
| 99 | |
| 100 void RawResource::didDownloadData(int dataLength) | |
| 101 { | |
| 102 ResourceClientWalker<RawResourceClient> w(m_clients); | |
| 103 while (RawResourceClient* c = w.next()) | |
| 104 c->dataDownloaded(this, dataLength); | |
| 105 } | |
| 106 | |
| 107 static bool shouldIgnoreHeaderForCacheReuse(AtomicString headerName) | |
| 108 { | |
| 109 // FIXME: This list of headers that don't affect cache policy almost certain
ly isn't complete. | |
| 110 DEFINE_STATIC_LOCAL(HashSet<AtomicString>, m_headers, ()); | |
| 111 if (m_headers.isEmpty()) { | |
| 112 m_headers.add("Cache-Control"); | |
| 113 m_headers.add("If-Modified-Since"); | |
| 114 m_headers.add("If-None-Match"); | |
| 115 m_headers.add("Origin"); | |
| 116 m_headers.add("Pragma"); | |
| 117 m_headers.add("Purpose"); | |
| 118 m_headers.add("Referer"); | |
| 119 m_headers.add("User-Agent"); | |
| 120 } | |
| 121 return m_headers.contains(headerName); | |
| 122 } | |
| 123 | |
| 124 static bool isCacheableHTTPMethod(const AtomicString& method) | |
| 125 { | |
| 126 // Per http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.10, | |
| 127 // these methods always invalidate the cache entry. | |
| 128 return method != "POST" && method != "PUT" && method != "DELETE"; | |
| 129 } | |
| 130 | |
| 131 bool RawResource::canReuse(const ResourceRequest& newRequest) const | |
| 132 { | |
| 133 if (m_options.dataBufferingPolicy == DoNotBufferData) | |
| 134 return false; | |
| 135 | |
| 136 if (!isCacheableHTTPMethod(m_resourceRequest.httpMethod())) | |
| 137 return false; | |
| 138 if (m_resourceRequest.httpMethod() != newRequest.httpMethod()) | |
| 139 return false; | |
| 140 | |
| 141 if (m_resourceRequest.httpBody() != newRequest.httpBody()) | |
| 142 return false; | |
| 143 | |
| 144 if (m_resourceRequest.allowStoredCredentials() != newRequest.allowStoredCred
entials()) | |
| 145 return false; | |
| 146 | |
| 147 // Ensure most headers match the existing headers before continuing. | |
| 148 // Note that the list of ignored headers includes some headers explicitly re
lated to caching. | |
| 149 // A more detailed check of caching policy will be performed later, this is
simply a list of | |
| 150 // headers that we might permit to be different and still reuse the existing
Resource. | |
| 151 const HTTPHeaderMap& newHeaders = newRequest.httpHeaderFields(); | |
| 152 const HTTPHeaderMap& oldHeaders = m_resourceRequest.httpHeaderFields(); | |
| 153 | |
| 154 HTTPHeaderMap::const_iterator end = newHeaders.end(); | |
| 155 for (HTTPHeaderMap::const_iterator i = newHeaders.begin(); i != end; ++i) { | |
| 156 AtomicString headerName = i->key; | |
| 157 if (!shouldIgnoreHeaderForCacheReuse(headerName) && i->value != oldHeade
rs.get(headerName)) | |
| 158 return false; | |
| 159 } | |
| 160 | |
| 161 end = oldHeaders.end(); | |
| 162 for (HTTPHeaderMap::const_iterator i = oldHeaders.begin(); i != end; ++i) { | |
| 163 AtomicString headerName = i->key; | |
| 164 if (!shouldIgnoreHeaderForCacheReuse(headerName) && i->value != newHeade
rs.get(headerName)) | |
| 165 return false; | |
| 166 } | |
| 167 | |
| 168 return true; | |
| 169 } | |
| 170 | |
| 171 } // namespace blink | |
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Chromium Code Reviews
Issue 1223793006:
Delete sky/engine/core/fetch (Closed)
Base URL: git@github.com:domokit/mojo.git@master