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1 // Copyright 2014 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 #ifndef NET_TOOLS_QUIC_TEST_TOOLS_SIMPLE_CLIENT_H_
6 #define NET_TOOLS_QUIC_TEST_TOOLS_SIMPLE_CLIENT_H_
7 
8 #include <string>
9 #include <vector>
10 
11 #include "net/base/ip_endpoint.h"
12 #include "net/tools/balsa/balsa_frame.h"
13 
14 namespace net {
15 namespace tools {
16 namespace test {
17 
18 class HTTPMessage;
19 
20 class SimpleClient {
21  public:
~SimpleClient()22   virtual ~SimpleClient() {}
23 
24   // Clears any outstanding state and sends 'size' bytes from 'buffer' to the
25   // server, possibly with multiple send operations.  Returns 'size' on success
26   // and -1 on error.  Callers should assume that any return value other than
27   // 'size' indicates failure.
28   virtual ssize_t Send(const void *buffer, size_t size) = 0;
29 
30   // Serialize and send an HTTP request.
31   virtual ssize_t SendMessage(const HTTPMessage& message) = 0;
32 
33   // Clears any outstanding state, sends 'size' bytes from 'buffer' and waits
34   // for a response or an error.
35   virtual ssize_t SendAndWaitForResponse(const void *buffer, size_t size) = 0;
36 
37   // Clears any outstanding state and sends a simple GET of 'uri' to the
38   // server.
39   virtual ssize_t SendRequest(const std::string& uri) = 0;
40 
41   // The response body is returned as a string.
42   virtual std::string SendCustomSynchronousRequest(
43       const HTTPMessage& message) = 0;
44   virtual std::string SendSynchronousRequest(const std::string& url) = 0;
45 
46   // Returns once a complete response or a connection close has been received
47   // from the server.
48   virtual void WaitForResponse();
49 
50   // Waits for some data or response from the server.
51   virtual void WaitForInitialResponse();
52 
53   // Returns once a complete response or a connection close has been received
54   // from the server, or once the timeout expires. -1 for no timeout.
55   virtual void WaitForResponseForMs(int timeout_ms) = 0;
56 
57   // Waits for some data or response from the server, or once the timeout
58   // expires. -1 for no timeout.
59   virtual void WaitForInitialResponseForMs(int timeout_ms) = 0;
60 
61   // Clears any outstanding state from the last request.
62   virtual void ClearPerRequestState() = 0;
63 
64   // Closes and reopens the connection to the server.
65   virtual void ResetConnection() = 0;
66 
67   // Closes the connection to the server.
68   virtual void Disconnect() = 0;
69 
70   // Both will return 0 on success, -1 otherwise.
71   // Sends out RST packet to peer.
72   // TODO(yongfa): Probably should be an interface too. LOG(FATAL) here
73   // to prevent accidental invocation.
74   virtual int ResetSocket();
75 
76   virtual int HalfClose();
77 
78   // Connects to the server.  This should be done implicitly by Send*
79   // functions, but can be done explicitly as well.
80   virtual void Connect() = 0;
81 
82   // Bind to the specified address.  If set_bind_to_address() is called, this
83   // is called automatically on connect, but can be done explicitly to make
84   // LocalIPEndPoint() meaningful before actually connecting.
85   // Sets *local_address to the actual address bound to, which can be different
86   // if the given address has port 0.
87   virtual void Bind(IPEndPoint* local_address) = 0;
88 
89   // Returns the local socket address of the client fd. Call only when
90   // connected.
91   // To get the local IPAdress, use LocalSocketAddress().host().
92   // To get the local port, use LocalSocketAddress.port().
93   virtual IPEndPoint LocalSocketAddress() const = 0;
94 
95   // Returns the serialized message that would be sent by any of the HTTPMessage
96   // functions above.
97   virtual std::string SerializeMessage(const HTTPMessage& message) = 0;
98 
99   // Sets the IP address to bind to on future Connect()s in case Bind() is not
100   // called in advance. If it's set to uninitialized IPAddress, default loopback
101   // address will be used.
102   virtual IPAddressNumber bind_to_address() const = 0;
103   virtual void set_bind_to_address(IPAddressNumber address) = 0;
104 
105   // Returns true if the headers have been processed and are available.
106   virtual bool response_headers_complete() const = 0;
107 
108   // Returns the response headers, if a response was completely framed.
109   // Undefined behavior otherwise.
110   virtual const BalsaHeaders* response_headers() const = 0;
111 
112   // Returns true iff response has been fully received.
113   virtual bool response_complete() const = 0;
114 
115   // Returns the number of bytes read from the server during this request.
116   virtual int64 response_size() const = 0;
117 
118   // Returns the number of header bytes received during this request, if
119   // meaningful for the protocol.
120   virtual int response_header_size() const;
121 
122   // Returns the number of body bytes received during this request, if
123   // meaningful for the protocol.
124   virtual int64 response_body_size() const;
125 
126   // Returns the response body, if there was one. If there was no response, or
127   // if buffer_body() is false, returns an empty string.
128   virtual const std::string& response_body() = 0;
129 
130   // The address the client is connected to.
131   virtual const IPEndPoint& address() const = 0;
132 
133   // Returns true if the client is connected, false otherwise.
134   virtual bool connected() const = 0;
135 
136   // Returns true if the server has informed the client that it is
137   // in "lame duck" mode, indicating intent to shut down and
138   // requesting that no further connections be established.
139   virtual bool ServerInLameDuckMode() const = 0;
140 
141   // Return the number of bytes read off the wire by this client.
142   virtual size_t bytes_read() const = 0;
143 
144   // Returns the number of bytes written to the wire by this client.
145   virtual size_t bytes_written() const = 0;
146 
147   // Return the number of requests sent.
148   virtual size_t requests_sent() const = 0;
149 
150   // Instructs the client to populate response_body().
151   virtual bool buffer_body() const = 0;
152   virtual void set_buffer_body(bool buffer_body) = 0;
153 };
154 
155 }  // namespace test
156 }  // namespace tools
157 }  // namespace net
158 
159 #endif  // NET_TOOLS_QUIC_TEST_TOOLS_SIMPLE_CLIENT_H_
160