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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/loader/mime_type_resource_handler.h" | 5 #include "content/browser/loader/mime_type_resource_handler.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 #include <vector> | 8 #include <vector> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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28 #include "content/public/browser/resource_context.h" | 28 #include "content/public/browser/resource_context.h" |
29 #include "content/public/browser/resource_dispatcher_host_delegate.h" | 29 #include "content/public/browser/resource_dispatcher_host_delegate.h" |
30 #include "content/public/common/resource_response.h" | 30 #include "content/public/common/resource_response.h" |
31 #include "content/public/common/webplugininfo.h" | 31 #include "content/public/common/webplugininfo.h" |
32 #include "net/base/io_buffer.h" | 32 #include "net/base/io_buffer.h" |
33 #include "net/base/mime_sniffer.h" | 33 #include "net/base/mime_sniffer.h" |
34 #include "net/base/mime_util.h" | 34 #include "net/base/mime_util.h" |
35 #include "net/base/net_errors.h" | 35 #include "net/base/net_errors.h" |
36 #include "net/http/http_content_disposition.h" | 36 #include "net/http/http_content_disposition.h" |
37 #include "net/http/http_response_headers.h" | 37 #include "net/http/http_response_headers.h" |
| 38 #include "net/url_request/url_request.h" |
38 | 39 |
39 namespace content { | 40 namespace content { |
40 | 41 |
41 namespace { | 42 namespace { |
42 | 43 |
| 44 const char kAcceptHeader[] = "Accept"; |
| 45 const char kFrameAcceptHeader[] = |
| 46 "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp," |
| 47 "*/*;q=0.8"; |
| 48 const char kStylesheetAcceptHeader[] = "text/css,*/*;q=0.1"; |
| 49 const char kImageAcceptHeader[] = "image/webp,image/*,*/*;q=0.8"; |
| 50 const char kDefaultAcceptHeader[] = "*/*"; |
| 51 |
43 // Used to write into an existing IOBuffer at a given offset. | 52 // Used to write into an existing IOBuffer at a given offset. |
44 class DependentIOBuffer : public net::WrappedIOBuffer { | 53 class DependentIOBuffer : public net::WrappedIOBuffer { |
45 public: | 54 public: |
46 DependentIOBuffer(net::IOBuffer* buf, int offset) | 55 DependentIOBuffer(net::IOBuffer* buf, int offset) |
47 : net::WrappedIOBuffer(buf->data() + offset), | 56 : net::WrappedIOBuffer(buf->data() + offset), |
48 buf_(buf) { | 57 buf_(buf) { |
49 } | 58 } |
50 | 59 |
51 private: | 60 private: |
52 ~DependentIOBuffer() override {} | 61 ~DependentIOBuffer() override {} |
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109 if (response_->head.mime_type == "application/rss+xml" || | 118 if (response_->head.mime_type == "application/rss+xml" || |
110 response_->head.mime_type == "application/atom+xml") { | 119 response_->head.mime_type == "application/atom+xml") { |
111 response_->head.mime_type.assign("text/plain"); | 120 response_->head.mime_type.assign("text/plain"); |
112 } | 121 } |
113 } | 122 } |
114 | 123 |
115 state_ = STATE_PROCESSING; | 124 state_ = STATE_PROCESSING; |
116 return ProcessResponse(defer); | 125 return ProcessResponse(defer); |
117 } | 126 } |
118 | 127 |
| 128 bool MimeTypeResourceHandler::OnWillStart(const GURL& url, bool* defer) { |
| 129 const char* accept_value = nullptr; |
| 130 switch (GetRequestInfo()->GetResourceType()) { |
| 131 case RESOURCE_TYPE_MAIN_FRAME: |
| 132 case RESOURCE_TYPE_SUB_FRAME: |
| 133 accept_value = kFrameAcceptHeader; |
| 134 break; |
| 135 case RESOURCE_TYPE_STYLESHEET: |
| 136 accept_value = kStylesheetAcceptHeader; |
| 137 break; |
| 138 case RESOURCE_TYPE_IMAGE: |
| 139 accept_value = kImageAcceptHeader; |
| 140 break; |
| 141 case RESOURCE_TYPE_SCRIPT: |
| 142 case RESOURCE_TYPE_FONT_RESOURCE: |
| 143 case RESOURCE_TYPE_SUB_RESOURCE: |
| 144 case RESOURCE_TYPE_OBJECT: |
| 145 case RESOURCE_TYPE_MEDIA: |
| 146 case RESOURCE_TYPE_WORKER: |
| 147 case RESOURCE_TYPE_SHARED_WORKER: |
| 148 case RESOURCE_TYPE_PREFETCH: |
| 149 case RESOURCE_TYPE_FAVICON: |
| 150 case RESOURCE_TYPE_XHR: |
| 151 case RESOURCE_TYPE_PING: |
| 152 case RESOURCE_TYPE_SERVICE_WORKER: |
| 153 case RESOURCE_TYPE_CSP_REPORT: |
| 154 case RESOURCE_TYPE_PLUGIN_RESOURCE: |
| 155 accept_value = kDefaultAcceptHeader; |
| 156 break; |
| 157 case RESOURCE_TYPE_LAST_TYPE: |
| 158 NOTREACHED(); |
| 159 break; |
| 160 } |
| 161 |
| 162 // The false parameter prevents overwriting an existing accept header value, |
| 163 // which is needed because JS can manually set an accept header on an XHR. |
| 164 request()->SetExtraRequestHeaderByName(kAcceptHeader, accept_value, false); |
| 165 return next_handler_->OnWillStart(url, defer); |
| 166 } |
| 167 |
119 bool MimeTypeResourceHandler::OnWillRead(scoped_refptr<net::IOBuffer>* buf, | 168 bool MimeTypeResourceHandler::OnWillRead(scoped_refptr<net::IOBuffer>* buf, |
120 int* buf_size, | 169 int* buf_size, |
121 int min_size) { | 170 int min_size) { |
122 if (state_ == STATE_STREAMING) | 171 if (state_ == STATE_STREAMING) |
123 return next_handler_->OnWillRead(buf, buf_size, min_size); | 172 return next_handler_->OnWillRead(buf, buf_size, min_size); |
124 | 173 |
125 DCHECK_EQ(-1, min_size); | 174 DCHECK_EQ(-1, min_size); |
126 | 175 |
127 if (read_buffer_.get()) { | 176 if (read_buffer_.get()) { |
128 CHECK_LT(bytes_read_, read_buffer_size_); | 177 CHECK_LT(bytes_read_, read_buffer_size_); |
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484 request()->LogUnblocked(); | 533 request()->LogUnblocked(); |
485 bool defer = false; | 534 bool defer = false; |
486 if (!ProcessResponse(&defer)) { | 535 if (!ProcessResponse(&defer)) { |
487 controller()->Cancel(); | 536 controller()->Cancel(); |
488 } else if (!defer) { | 537 } else if (!defer) { |
489 controller()->Resume(); | 538 controller()->Resume(); |
490 } | 539 } |
491 } | 540 } |
492 | 541 |
493 } // namespace content | 542 } // namespace content |
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