1 //
2 // Copyright (C) 2013 The Android Open Source Project
3 //
4 // Licensed under the Apache License, Version 2.0 (the "License");
5 // you may not use this file except in compliance with the License.
6 // You may obtain a copy of the License at
7 //
8 //      http://www.apache.org/licenses/LICENSE-2.0
9 //
10 // Unless required by applicable law or agreed to in writing, software
11 // distributed under the License is distributed on an "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 // See the License for the specific language governing permissions and
14 // limitations under the License.
15 //
16 
17 #ifndef UPDATE_ENGINE_FAKE_P2P_MANAGER_CONFIGURATION_H_
18 #define UPDATE_ENGINE_FAKE_P2P_MANAGER_CONFIGURATION_H_
19 
20 #include "update_engine/p2p_manager.h"
21 
22 #include <string>
23 #include <vector>
24 
25 #include <base/files/scoped_temp_dir.h>
26 #include <base/strings/string_util.h>
27 #include <gtest/gtest.h>
28 
29 namespace chromeos_update_engine {
30 
31 // Configuration for P2PManager for use in unit tests. Instead of
32 // /var/cache/p2p, a temporary directory is used.
33 class FakeP2PManagerConfiguration : public P2PManager::Configuration {
34  public:
35   FakeP2PManagerConfiguration() { EXPECT_TRUE(p2p_dir_.CreateUniqueTempDir()); }
36 
37   // P2PManager::Configuration override
38   base::FilePath GetP2PDir() override { return p2p_dir_.GetPath(); }
39 
40   // P2PManager::Configuration override
41   std::vector<std::string> GetInitctlArgs(bool is_start) override {
42     return is_start ? initctl_start_args_ : initctl_stop_args_;
43   }
44 
45   // P2PManager::Configuration override
46   std::vector<std::string> GetP2PClientArgs(const std::string& file_id,
47                                             size_t minimum_size) override {
48     std::vector<std::string> formatted_command = p2p_client_cmd_format_;
49     // Replace {variable} on the passed string.
50     std::string str_minimum_size = std::to_string(minimum_size);
51     for (std::string& arg : formatted_command) {
52       base::ReplaceSubstringsAfterOffset(&arg, 0, "{file_id}", file_id);
53       base::ReplaceSubstringsAfterOffset(
54           &arg, 0, "{minsize}", str_minimum_size);
55     }
56     return formatted_command;
57   }
58 
59   // Use |command_line| instead of "initctl start p2p" when attempting
60   // to start the p2p service.
61   void SetInitctlStartCommand(const std::vector<std::string>& command) {
62     initctl_start_args_ = command;
63   }
64 
65   // Use |command_line| instead of "initctl stop p2p" when attempting
66   // to stop the p2p service.
67   void SetInitctlStopCommand(const std::vector<std::string>& command) {
68     initctl_stop_args_ = command;
69   }
70 
71   // Use |command_format| instead of "p2p-client --get-url={file_id}
72   // --minimum-size={minsize}" when attempting to look up a file using
73   // p2p-client(1).
74   //
75   // The passed |command_format| argument can have "{file_id}" and "{minsize}"
76   // as substrings of any of its elements, that will be replaced by the
77   // corresponding values passed to GetP2PClientArgs().
78   void SetP2PClientCommand(const std::vector<std::string>& command_format) {
79     p2p_client_cmd_format_ = command_format;
80   }
81 
82  private:
83   // The temporary directory used for p2p.
84   base::ScopedTempDir p2p_dir_;
85 
86   // Argument vector for starting p2p.
87   std::vector<std::string> initctl_start_args_{"initctl", "start", "p2p"};
88 
89   // Argument vector for stopping p2p.
90   std::vector<std::string> initctl_stop_args_{"initctl", "stop", "p2p"};
91 
92   // A string for generating the p2p-client command. See the
93   // SetP2PClientCommandLine() for details.
94   std::vector<std::string> p2p_client_cmd_format_{
95       "p2p-client", "--get-url={file_id}", "--minimum-size={minsize}"};
96 
97   DISALLOW_COPY_AND_ASSIGN(FakeP2PManagerConfiguration);
98 };
99 
100 }  // namespace chromeos_update_engine
101 
102 #endif  // UPDATE_ENGINE_FAKE_P2P_MANAGER_CONFIGURATION_H_
103