Move multipart resource handling to core/fetch (2/2)

content/child/web_url_loader_impl.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/web_url_loader_impl.h"
 
 #include <stdint.h>
 #include <algorithm>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "components/mime_util/mime_util.h"
 #include "components/scheduler/child/web_task_runner_impl.h"
 #include "content/child/child_thread_impl.h"
 #include "content/child/ftp_directory_listing_response_delegate.h"
-#include "content/child/multipart_response_delegate.h"
 #include "content/child/request_extra_data.h"
 #include "content/child/request_info.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/child/shared_memory_data_consumer_handle.h"
 #include "content/child/sync_load_response.h"
 #include "content/child/web_url_request_util.h"
 #include "content/child/weburlresponse_extradata_impl.h"
 #include "content/common/resource_messages.h"
 #include "content/common/resource_request_body.h"
 #include "content/common/service_worker/service_worker_types.h"
@@ skipping 315 matching lines @@
   bool CanHandleDataURLRequestLocally() const;
   void HandleDataURL();
 
   WebURLLoaderImpl* loader_;
   WebURLRequest request_;
   WebURLLoaderClient* client_;
   ResourceDispatcher* resource_dispatcher_;
   scoped_ptr<blink::WebTaskRunner> web_task_runner_;
   WebReferrerPolicy referrer_policy_;
   scoped_ptr<FtpDirectoryListingResponseDelegate> ftp_listing_delegate_;
-  scoped_ptr<MultipartResponseDelegate> multipart_delegate_;
   scoped_ptr<StreamOverrideParameters> stream_override_;
   scoped_ptr<SharedMemoryDataConsumerHandle::Writer> body_stream_writer_;
   enum DeferState {NOT_DEFERRING, SHOULD_DEFER, DEFERRED_DATA};
   DeferState defers_loading_;
   int request_id_;
 };
 
 // A thin wrapper class for Context to ensure its lifetime while it is
 // handling IPC messages coming from ResourceDispatcher. Owns one ref to
 // Context and held by ResourceDispatcher.
@@ skipping 38 matching lines @@
 void WebURLLoaderImpl::Context::Cancel() {
   if (resource_dispatcher_ && // NULL in unittest.
       request_id_ != -1) {
     resource_dispatcher_->Cancel(request_id_);
     request_id_ = -1;
   }
 
   if (body_stream_writer_)
     body_stream_writer_->Fail();
 
-  // Ensure that we do not notify the multipart delegate anymore as it has
+  // Ensure that we do not notify the delegate anymore as it has
   // its own pointer to the client.
-  if (multipart_delegate_)
-    multipart_delegate_->Cancel();
-  // Ditto for the ftp delegate.
   if (ftp_listing_delegate_)
     ftp_listing_delegate_->Cancel();
 
   // Do not make any further calls to the client.
   client_ = NULL;
   loader_ = NULL;
 }
 
 void WebURLLoaderImpl::Context::SetDefersLoading(bool value) {
   if (request_id_ != -1)
@@ skipping 214 matching lines @@
 
   if (info.mime_type == "text/vnd.chromium.ftp-dir") {
     if (show_raw_listing) {
       // Set the MIME type to plain text to prevent any active content.
       response.setMIMEType("text/plain");
     } else {
       // We're going to produce a parsed listing in HTML.
       response.setMIMEType("text/html");
     }
   }
+  if (info.headers.get() && info.mime_type == "multipart/x-mixed-replace") {
+    std::string content_type;
+    info.headers->EnumerateHeader(NULL, "content-type", &content_type);
+
+    std::string mime_type;
+    std::string charset;
+    bool had_charset = false;
+    std::string boundary;
+    net::HttpUtil::ParseContentType(content_type, &mime_type, &charset,
+                                    &had_charset, &boundary);
+    base::TrimString(boundary, " \"", &boundary);
+    response.setMultipartBoundary(boundary.data(), boundary.size());
+  }
 
   if (request_.useStreamOnResponse()) {
     SharedMemoryDataConsumerHandle::BackpressureMode mode =
         SharedMemoryDataConsumerHandle::kDoNotApplyBackpressure;
     if (info.headers &&
         info.headers->HasHeaderValue("Cache-Control", "no-store")) {
       mode = SharedMemoryDataConsumerHandle::kApplyBackpressure;
     }
 
     auto read_handle = make_scoped_ptr(new SharedMemoryDataConsumerHandle(
@@ skipping 13 matching lines @@
   } else {
     client_->didReceiveResponse(loader_, response);
   }
 
   // We may have been cancelled after didReceiveResponse, which would leave us
   // without a client and therefore without much need to do further handling.
   if (!client_)
     return;
 
   DCHECK(!ftp_listing_delegate_.get());
-  DCHECK(!multipart_delegate_.get());
-  if (info.headers.get() && info.mime_type == "multipart/x-mixed-replace") {
-    std::string content_type;
-    info.headers->EnumerateHeader(NULL, "content-type", &content_type);
-
-    std::string mime_type;
-    std::string charset;
-    bool had_charset = false;
-    std::string boundary;
-    net::HttpUtil::ParseContentType(content_type, &mime_type, &charset,
-                                    &had_charset, &boundary);
-    base::TrimString(boundary, " \"", &boundary);
-
-    // If there's no boundary, just handle the request normally.  In the gecko
-    // code, nsMultiMixedConv::OnStartRequest throws an exception.
-    if (!boundary.empty()) {
-      multipart_delegate_.reset(
-          new MultipartResponseDelegate(client_, loader_, response, boundary));
-    }
-  } else if (info.mime_type == "text/vnd.chromium.ftp-dir" &&
-             !show_raw_listing) {
+  if (info.mime_type == "text/vnd.chromium.ftp-dir" && !show_raw_listing) {
     ftp_listing_delegate_.reset(
         new FtpDirectoryListingResponseDelegate(client_, loader_, response));
   }
 }
 
 void WebURLLoaderImpl::Context::OnDownloadedData(int len,
                                                  int encoded_data_length) {
   if (client_)
     client_->didDownloadData(loader_, len, encoded_data_length);
 }
 
 void WebURLLoaderImpl::Context::OnReceivedData(scoped_ptr<ReceivedData> data) {
   const char* payload = data->payload();
   int data_length = data->length();
   int encoded_data_length = data->encoded_length();
   if (!client_)
     return;
 
   if (ftp_listing_delegate_) {
     // The FTP listing delegate will make the appropriate calls to
     // client_->didReceiveData and client_->didReceiveResponse.
     ftp_listing_delegate_->OnReceivedData(payload, data_length);
-  } else if (multipart_delegate_) {
-    // The multipart delegate will make the appropriate calls to
-    // client_->didReceiveData and client_->didReceiveResponse.
-    multipart_delegate_->OnReceivedData(payload, data_length,
-                                        encoded_data_length);
   } else {
     // We dispatch the data even when |useStreamOnResponse()| is set, in order
     // to make Devtools work.
     client_->didReceiveData(loader_, payload, data_length, encoded_data_length);
 
     if (request_.useStreamOnResponse()) {
-      // We don't support ftp_listening_delegate_ and multipart_delegate_ for
-      // now.
-      // TODO(yhirano): Support ftp listening and multipart.
+      // We don't support ftp_listening_delegate_ for now.
+      // TODO(yhirano): Support ftp listening.
       body_stream_writer_->AddData(std::move(data));
     }
   }
 }
 
 void WebURLLoaderImpl::Context::OnReceivedCachedMetadata(
     const char* data, int len) {
   if (client_)
     client_->didReceiveCachedMetadata(loader_, data, len);
 }
 
 void WebURLLoaderImpl::Context::OnCompletedRequest(
     int error_code,
     bool was_ignored_by_handler,
     bool stale_copy_in_cache,
     const std::string& security_info,
     const base::TimeTicks& completion_time,
     int64_t total_transfer_size) {
   if (ftp_listing_delegate_) {
     ftp_listing_delegate_->OnCompletedRequest();
     ftp_listing_delegate_.reset(NULL);
-  } else if (multipart_delegate_) {
-    multipart_delegate_->OnCompletedRequest();
-    multipart_delegate_.reset(NULL);
   }
 
   if (body_stream_writer_ && error_code != net::OK)
     body_stream_writer_->Fail();
   body_stream_writer_.reset();
 
   if (client_) {
     if (error_code != net::OK) {
       client_->didFail(
           loader_,
@@ skipping 12 matching lines @@
   DCHECK_LT(request_id_, 0);
 }
 
 void WebURLLoaderImpl::Context::CancelBodyStreaming() {
   scoped_refptr<Context> protect(this);
 
   // Notify renderer clients that the request is canceled.
   if (ftp_listing_delegate_) {
     ftp_listing_delegate_->OnCompletedRequest();
     ftp_listing_delegate_.reset(NULL);
-  } else if (multipart_delegate_) {
-    multipart_delegate_->OnCompletedRequest();
-    multipart_delegate_.reset(NULL);
   }
 
   if (body_stream_writer_) {
     body_stream_writer_->Fail();
     body_stream_writer_.reset();
   }
   if (client_) {
     // TODO(yhirano): Set |stale_copy_in_cache| appropriately if possible.
     client_->didFail(
         loader_, CreateWebURLError(request_.url(), false, net::ERR_ABORTED));
@@ skipping 394 matching lines @@
     response->clearHTTPHeaderField(webStringName);
     while (response_headers->EnumerateHeader(&iterator, name, &value)) {
       response->addHTTPHeaderField(webStringName,
                                    WebString::fromLatin1(value));
     }
   }
   return true;
 }
 
 }  // namespace content