1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/*
* Copyright 2010, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef URL_FETCHER_PROXY_H_
#define URL_FETCHER_PROXY_H_
#include "android/autofill/android_url_request_context_getter.h"
#include "android/autofill/profile_android.h"
#include "base/scoped_ptr.h"
#include "base/threading/thread.h"
#include "common/net/url_fetcher.h"
#include "net/url_request/url_request_status.h"
#include <WebCoreSupport/autofill/MainThreadProxy.h>
class URLFetcherProxy;
// The URLFetcherProxy uses RunnableMethod to call functions on it in
// another thread, but (since it's trying to behave like a URLFetcher)
// isn't reference counted. This specialisation makes RunnableMethod
// work with a non-reference-counted object by not manipulating the
// reference counts.
// TODO: Investigate alternatives to using RunnableMethod that don't
// expect a ref counted object so we can remove this if possible.
template <>
struct RunnableMethodTraits<class URLFetcherProxy> {
void RetainCallee(URLFetcherProxy* obj) {
}
void ReleaseCallee(URLFetcherProxy* obj) {
}
};
// A class that implements the same API as URLFetcher but instead of
// assuming that the calling thread is a chrome thread with a message
// loop, it assumes the calling thread is WebKit's main thread.
//
// It extends URLFetcher so as to minimise the diff in other code when
// using this class in place of URLFetcher. It uses a private
// URLFetcher instance to do the network request and thus implements
// URLFetcher::Delegate. We always use
// ProfileImplAndroid::GetDefaultRequestContext() as the request
// context.
//
// Note that we overide the minimum number of methods to allow this
// class to be used by AutoFillDownloadManager ...
// - set_upload_data()
// - set_automatically_retry_on_5xx()
// - Start()
class URLFetcherProxy : public URLFetcher, public URLFetcher::Delegate {
public:
URLFetcherProxy(const GURL& url,
URLFetcher::RequestType request_type,
URLFetcher::Delegate* d)
: URLFetcher(url /*unused*/, URLFetcher::POST /*unused*/, d),
request_type_(request_type),
retry_(true),
url_(url)
{
}
virtual ~URLFetcherProxy()
{
pending_callbacks_.erase(this);
}
virtual void set_automatically_retry_on_5xx(bool retry)
{
retry_ = retry;
}
virtual void set_upload_data(const std::string& upload_content_type,
const std::string& upload_content)
{
upload_content_type_ = upload_content_type;
upload_content_ = upload_content;
}
virtual void Start()
{
scoped_refptr<URLRequestContextGetter> con = request_context();
CHECK(con.get()) << "No URLRequestContextGetter!";
scoped_refptr<base::MessageLoopProxy> mlp = con->GetIOMessageLoopProxy();
// TODO: See the template specialisation at the top of the file. Can we use
// an alternative to RunnableMethod that doesn't expect a ref counted object?
mlp->PostTask(FROM_HERE, NewRunnableMethod(this, &URLFetcherProxy::DoStart));
};
virtual void OnURLFetchComplete(const URLFetcher* source,
const GURL& url,
const URLRequestStatus& status,
int response_code,
const ResponseCookies& cookies,
const std::string& data)
{
url_ = url;
status_ = status;
response_code_ = response_code;
cookies_ = cookies;
data_ = data;
pending_callbacks_[this] = true;
MainThreadProxy::CallOnMainThread(DoComplete, this);
}
net::HttpResponseHeaders* response_headers() const {return real_fetcher_->response_headers();};
// Returns the back-off delay before the request will be retried,
// when a 5xx response was received.
base::TimeDelta backoff_delay() const { return real_fetcher_->backoff_delay();};
private:
void DoStart()
{
real_fetcher_.reset(new URLFetcher(url_, request_type_, this));
real_fetcher_->set_automatically_retry_on_5xx(retry_);
// We expect set_upload_data() to have been called on this object.
real_fetcher_->set_upload_data(upload_content_type_, upload_content_);
real_fetcher_->set_request_context(request_context());
real_fetcher_->Start();
};
static void DoComplete(void* context)
{
URLFetcherProxy* that = static_cast<URLFetcherProxy*>(context);
if (pending_callbacks_[that]) {
that->DoCompleteImpl();
}
}
void DoCompleteImpl()
{
delegate()->OnURLFetchComplete(this, url_, status_, response_code_, cookies_, data_);
}
scoped_ptr<URLFetcher> real_fetcher_;
URLFetcher::RequestType request_type_;
bool retry_;
std::string upload_content_type_;
std::string upload_content_;
GURL url_;
URLRequestStatus status_;
int response_code_;
ResponseCookies cookies_;
std::string data_;
static std::map<URLFetcherProxy*, bool> pending_callbacks_;
DISALLOW_EVIL_CONSTRUCTORS(URLFetcherProxy);
};
#endif // URL_FETCHER_PROXY_H_
|
