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1 // Copyright (c) 2009, Google Inc. | |
2 // All rights reserved. | |
3 // | |
4 // Redistribution and use in source and binary forms, with or without | |
5 // modification, are permitted provided that the following conditions are | |
6 // met: | |
7 // | |
8 // * Redistributions of source code must retain the above copyright | |
9 // notice, this list of conditions and the following disclaimer. | |
10 // * Redistributions in binary form must reproduce the above | |
11 // copyright notice, this list of conditions and the following disclaimer | |
12 // in the documentation and/or other materials provided with the | |
13 // distribution. | |
14 // * Neither the name of Google Inc. nor the names of its | |
15 // contributors may be used to endorse or promote products derived from | |
16 // this software without specific prior written permission. | |
17 // | |
18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
29 | |
30 // A wrapper for libcurl to do HTTP Uploads, to support easy mocking | |
31 // and unit testing of the HTTPUpload class. | |
32 | |
33 #include <string> | |
34 #include <map> | |
35 #include <curl/curl.h> | |
36 | |
37 namespace google_breakpad { | |
38 class LibcurlWrapper { | |
39 public: | |
40 LibcurlWrapper(); | |
41 virtual bool Init(); | |
42 virtual bool SetProxy(const std::string& proxy_host, | |
43 const std::string& proxy_userpwd); | |
44 virtual bool AddFile(const std::string& upload_file_path, | |
45 const std::string& basename); | |
46 virtual bool SendRequest(const std::string& url, | |
47 const std::map<std::string, std::string>& parameters, | |
48 std::string* server_response); | |
49 private: | |
50 // This function initializes class state corresponding to function | |
51 // pointers into the CURL library. | |
52 bool SetFunctionPointers(); | |
53 | |
54 bool init_ok_; // Whether init succeeded | |
55 void* curl_lib_; // Pointer to result of dlopen() on | |
56 // curl library | |
57 std::string last_curl_error_; // The text of the last error when | |
58 // dealing | |
59 // with CURL. | |
60 | |
61 CURL *curl_; // Pointer for handle for CURL calls. | |
62 | |
63 CURL* (*easy_init_)(void); | |
64 | |
65 // Stateful pointers for calling into curl_formadd() | |
66 struct curl_httppost *formpost_; | |
67 struct curl_httppost *lastptr_; | |
68 struct curl_slist *headerlist_; | |
69 | |
70 // Function pointers into CURL library | |
71 CURLcode (*easy_setopt_)(CURL *, CURLoption, ...); | |
72 CURLFORMcode (*formadd_)(struct curl_httppost **, | |
73 struct curl_httppost **, ...); | |
74 struct curl_slist* (*slist_append_)(struct curl_slist *, const char *); | |
75 void (*slist_free_all_)(struct curl_slist *); | |
76 CURLcode (*easy_perform_)(CURL *); | |
77 const char* (*easy_strerror_)(CURLcode); | |
78 void (*easy_cleanup_)(CURL *); | |
79 void (*formfree_)(struct curl_httppost *); | |
80 | |
81 }; | |
82 } | |
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