1 // Copyright (c) 2006, 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 // HTTPUpload provides a "nice" API to send a multipart HTTP(S) POST 31 // request using wininet. It currently supports requests that contain 32 // a set of string parameters (key/value pairs), and a file to upload. 33 34 #ifndef COMMON_WINDOWS_HTTP_UPLOAD_H_ 35 #define COMMON_WINDOWS_HTTP_UPLOAD_H_ 36 37 #pragma warning(push) 38 // Disable exception handler warnings. 39 #pragma warning(disable : 4530) 40 41 #include <windows.h> 42 #include <wininet.h> 43 44 #include <map> 45 #include <string> 46 #include <vector> 47 48 namespace google_breakpad { 49 50 using std::string; 51 using std::wstring; 52 using std::map; 53 using std::vector; 54 55 class HTTPUpload { 56 public: 57 // Sends the given set of parameters, along with the contents of 58 // upload_file, as a multipart POST request to the given URL. 59 // file_part_name contains the name of the file part of the request 60 // (i.e. it corresponds to the name= attribute on an <input type="file">. 61 // Parameter names must contain only printable ASCII characters, 62 // and may not contain a quote (") character. 63 // Only HTTP(S) URLs are currently supported. Returns true on success. 64 // If the request is successful and response_body is non-NULL, 65 // the response body will be returned in response_body. 66 // If response_code is non-NULL, it will be set to the HTTP response code 67 // received (or 0 if the request failed before getting an HTTP response). 68 static bool SendRequest(const wstring &url, 69 const map<wstring, wstring> ¶meters, 70 const wstring &upload_file, 71 const wstring &file_part_name, 72 int *timeout, 73 wstring *response_body, 74 int *response_code); 75 76 private: 77 class AutoInternetHandle; 78 79 // Retrieves the HTTP response. If NULL is passed in for response, 80 // this merely checks (via the return value) that we were successfully 81 // able to retrieve exactly as many bytes of content in the response as 82 // were specified in the Content-Length header. 83 static bool ReadResponse(HINTERNET request, wstring* response); 84 85 // Generates a new multipart boundary for a POST request 86 static wstring GenerateMultipartBoundary(); 87 88 // Generates a HTTP request header for a multipart form submit. 89 static wstring GenerateRequestHeader(const wstring &boundary); 90 91 // Given a set of parameters, an upload filename, and a file part name, 92 // generates a multipart request body string with these parameters 93 // and minidump contents. Returns true on success. 94 static bool GenerateRequestBody(const map<wstring, wstring> ¶meters, 95 const wstring &upload_file, 96 const wstring &file_part_name, 97 const wstring &boundary, 98 string *request_body); 99 100 // Fills the supplied vector with the contents of filename. 101 static bool GetFileContents(const wstring &filename, vector<char> *contents); 102 103 // Converts a UTF8 string to UTF16. 104 static wstring UTF8ToWide(const string &utf8); 105 106 // Converts a UTF16 string to UTF8. 107 static string WideToUTF8(const wstring &wide) { 108 return WideToMBCP(wide, CP_UTF8); 109 } 110 111 // Converts a UTF16 string to specified code page. 112 static string WideToMBCP(const wstring &wide, unsigned int cp); 113 114 // Checks that the given list of parameters has only printable 115 // ASCII characters in the parameter name, and does not contain 116 // any quote (") characters. Returns true if so. 117 static bool CheckParameters(const map<wstring, wstring> ¶meters); 118 119 // No instances of this class should be created. 120 // Disallow all constructors, destructors, and operator=. 121 HTTPUpload(); 122 explicit HTTPUpload(const HTTPUpload &); 123 void operator=(const HTTPUpload &); 124 ~HTTPUpload(); 125 }; 126 127 } // namespace google_breakpad 128 129 #pragma warning(pop) 130 131 #endif // COMMON_WINDOWS_HTTP_UPLOAD_H_ 132
