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
3 // found in the LICENSE file.
4
5 #include "android_webview/browser/aw_request_interceptor.h"
6
7 #include "android_webview/browser/aw_contents_io_thread_client.h"
8 #include "android_webview/browser/intercepted_request_data.h"
9 #include "base/android/jni_string.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "content/public/browser/browser_thread.h"
12 #include "content/public/browser/render_view_host.h"
13 #include "content/public/browser/resource_request_info.h"
14 #include "net/url_request/url_request.h"
15 #include "net/url_request/url_request_context.h"
16 #include "net/url_request/url_request_context_getter.h"
17 #include "net/url_request/url_request_job.h"
18
19 using content::BrowserThread;
20 using content::RenderViewHost;
21 using content::ResourceRequestInfo;
22
23 namespace android_webview {
24
25 namespace {
26
27 const void* kRequestAlreadyQueriedDataKey = &kRequestAlreadyQueriedDataKey;
28
29 } // namespace
30
AwRequestInterceptor()31 AwRequestInterceptor::AwRequestInterceptor() {
32 }
33
~AwRequestInterceptor()34 AwRequestInterceptor::~AwRequestInterceptor() {
35 }
36
37 scoped_ptr<InterceptedRequestData>
QueryForInterceptedRequestData(const GURL & location,net::URLRequest * request) const38 AwRequestInterceptor::QueryForInterceptedRequestData(
39 const GURL& location,
40 net::URLRequest* request) const {
41 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
42 int render_process_id, render_view_id;
43 if (!ResourceRequestInfo::GetRenderViewForRequest(
44 request, &render_process_id, &render_view_id))
45 return scoped_ptr<InterceptedRequestData>();
46
47 scoped_ptr<AwContentsIoThreadClient> io_thread_client =
48 AwContentsIoThreadClient::FromID(render_process_id, render_view_id);
49
50 if (!io_thread_client.get())
51 return scoped_ptr<InterceptedRequestData>();
52
53 return io_thread_client->ShouldInterceptRequest(location, request).Pass();
54 }
55
MaybeCreateJob(net::URLRequest * request,net::NetworkDelegate * network_delegate) const56 net::URLRequestJob* AwRequestInterceptor::MaybeCreateJob(
57 net::URLRequest* request,
58 net::NetworkDelegate* network_delegate) const {
59 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
60
61 // See if we've already found out the intercepted_request_data for this
62 // request.
63 // This is done not only for efficiency reasons, but also for correctness
64 // as it is possible for the Interceptor chain to be invoked more than once
65 // in which case we don't want to query the embedder multiple times.
66 // Note: The Interceptor chain is not invoked more than once if we create a
67 // URLRequestJob in this method, so this is only caching negative hits.
68 if (request->GetUserData(kRequestAlreadyQueriedDataKey))
69 return NULL;
70 request->SetUserData(kRequestAlreadyQueriedDataKey,
71 new base::SupportsUserData::Data());
72
73 scoped_ptr<InterceptedRequestData> intercepted_request_data =
74 QueryForInterceptedRequestData(request->url(), request);
75
76 if (!intercepted_request_data)
77 return NULL;
78
79 // The newly created job will own the InterceptedRequestData.
80 return InterceptedRequestData::CreateJobFor(
81 intercepted_request_data.Pass(), request, network_delegate);
82 }
83
84 } // namespace android_webview
85