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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
42namespace google_breakpad {
43class 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