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 #ifndef CLIENT_WINDOWS_SENDER_CRASH_REPORT_SENDER_H__ 31 #define CLIENT_WINDOWS_SENDER_CRASH_REPORT_SENDER_H__ 32 33 // CrashReportSender is a "static" class which provides an API to upload 34 // crash reports via HTTP(S). A crash report is formatted as a multipart POST 35 // request, which contains a set of caller-supplied string key/value pairs, 36 // and a minidump file to upload. 37 // 38 // To use this library in your project, you will need to link against 39 // wininet.lib. 40 41 #pragma warning( push ) 42 // Disable exception handler warnings. 43 #pragma warning( disable : 4530 ) 44 45 #include <map> 46 #include <string> 47 48 namespace google_breakpad { 49 50 using std::wstring; 51 using std::map; 52 53 typedef enum { 54 RESULT_FAILED = 0, // Failed to communicate with the server; try later. 55 RESULT_REJECTED, // Successfully sent the crash report, but the 56 // server rejected it; don't resend this report. 57 RESULT_SUCCEEDED, // The server accepted the crash report. 58 RESULT_THROTTLED // No attempt was made to send the crash report, because 59 // we exceeded the maximum reports per day. 60 } ReportResult; 61 62 class CrashReportSender { 63 public: 64 // Initializes a CrashReportSender instance. 65 // If checkpoint_file is non-empty, breakpad will persist crash report 66 // state to this file. A checkpoint file is required for 67 // set_max_reports_per_day() to function properly. 68 explicit CrashReportSender(const wstring &checkpoint_file); ~CrashReportSender()69 ~CrashReportSender() {} 70 71 // Sets the maximum number of crash reports that will be sent in a 24-hour 72 // period. This uses the state persisted to the checkpoint file. 73 // The default value of -1 means that there is no limit on reports sent. set_max_reports_per_day(int reports)74 void set_max_reports_per_day(int reports) { 75 max_reports_per_day_ = reports; 76 } 77 max_reports_per_day()78 int max_reports_per_day() const { return max_reports_per_day_; } 79 80 // Sends the specified files, along with the map of 81 // name value pairs, as a multipart POST request to the given URL. 82 // Parameter names must contain only printable ASCII characters, 83 // and may not contain a quote (") character. 84 // Only HTTP(S) URLs are currently supported. The return value indicates 85 // the result of the operation (see above for possible results). 86 // If report_code is non-NULL and the report is sent successfully (that is, 87 // the return value is RESULT_SUCCEEDED), a code uniquely identifying the 88 // report will be returned in report_code. 89 // (Otherwise, report_code will be unchanged.) 90 ReportResult SendCrashReport(const wstring &url, 91 const map<wstring, wstring> ¶meters, 92 const map<wstring, wstring> &files, 93 wstring *report_code); 94 95 private: 96 // Reads persistent state from a checkpoint file. 97 void ReadCheckpoint(FILE *fd); 98 99 // Called when a new report has been sent, to update the checkpoint state. 100 void ReportSent(int today); 101 102 // Returns today's date (UTC) formatted as YYYYMMDD. 103 int GetCurrentDate() const; 104 105 // Opens the checkpoint file with the specified mode. 106 // Returns zero on success, or an error code on failure. 107 int OpenCheckpointFile(const wchar_t *mode, FILE **fd); 108 109 wstring checkpoint_file_; 110 int max_reports_per_day_; 111 // The last date on which we sent a report, expressed as YYYYMMDD. 112 int last_sent_date_; 113 // Number of reports sent on last_sent_date_ 114 int reports_sent_; 115 116 // Disallow copy constructor and operator= 117 explicit CrashReportSender(const CrashReportSender &); 118 void operator=(const CrashReportSender &); 119 }; 120 121 } // namespace google_breakpad 122 123 #pragma warning( pop ) 124 125 #endif // CLIENT_WINDOWS_SENDER_CRASH_REPORT_SENDER_H__ 126