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 #ifndef COMMON_LINUX_LIBCURL_WRAPPER_H_ 34 #define COMMON_LINUX_LIBCURL_WRAPPER_H_ 35 36 #include <string> 37 #include <map> 38 39 #include "common/using_std_string.h" 40 #include "third_party/curl/curl.h" 41 42 namespace google_breakpad { 43 class LibcurlWrapper { 44 public: 45 LibcurlWrapper(); 46 virtual ~LibcurlWrapper(); 47 virtual bool Init(); 48 virtual bool SetProxy(const string& proxy_host, 49 const string& proxy_userpwd); 50 virtual bool AddFile(const string& upload_file_path, 51 const string& basename); 52 virtual bool SendRequest(const string& url, 53 const std::map<string, string>& parameters, 54 long* http_status_code, 55 string* http_header_data, 56 string* http_response_data); 57 bool SendGetRequest(const string& url, 58 long* http_status_code, 59 string* http_header_data, 60 string* http_response_data); 61 bool SendPutRequest(const string& url, 62 const string& path, 63 long* http_status_code, 64 string* http_header_data, 65 string* http_response_data); 66 bool SendSimplePostRequest(const string& url, 67 const string& body, 68 const string& content_type, 69 long* http_status_code, 70 string* http_header_data, 71 string* http_response_data); 72 73 private: 74 // This function initializes class state corresponding to function 75 // pointers into the CURL library. 76 bool SetFunctionPointers(); 77 78 bool SendRequestInner(const string& url, 79 long* http_status_code, 80 string* http_header_data, 81 string* http_response_data); 82 83 void Reset(); 84 85 bool CheckInit(); 86 87 bool init_ok_; // Whether init succeeded 88 void* curl_lib_; // Pointer to result of dlopen() on 89 // curl library 90 string last_curl_error_; // The text of the last error when 91 // dealing 92 // with CURL. 93 94 CURL *curl_; // Pointer for handle for CURL calls. 95 96 CURL* (*easy_init_)(void); 97 98 // Stateful pointers for calling into curl_formadd() 99 struct curl_httppost *formpost_; 100 struct curl_httppost *lastptr_; 101 struct curl_slist *headerlist_; 102 103 // Function pointers into CURL library 104 CURLcode (*easy_setopt_)(CURL *, CURLoption, ...); 105 CURLFORMcode (*formadd_)(struct curl_httppost **, 106 struct curl_httppost **, ...); 107 struct curl_slist* (*slist_append_)(struct curl_slist *, const char *); 108 void (*slist_free_all_)(struct curl_slist *); 109 CURLcode (*easy_perform_)(CURL *); 110 const char* (*easy_strerror_)(CURLcode); 111 void (*easy_cleanup_)(CURL *); 112 CURLcode (*easy_getinfo_)(CURL *, CURLINFO info, ...); 113 void (*easy_reset_)(CURL*); 114 void (*formfree_)(struct curl_httppost *); 115 116 }; 117 } 118 119 #endif // COMMON_LINUX_LIBCURL_WRAPPER_H_ 120