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/thirdparty/breakpad/client/windows/sender/crash_report_sender.h

http://github.com/tomahawk-player/tomahawk
C++ Header | 125 lines | 42 code | 20 blank | 63 comment | 0 complexity | afcdf05997bccf83747e5c0b366874ba MD5 | raw file
  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
 48namespace google_breakpad {
 49
 50using std::wstring;
 51using std::map;
 52
 53typedef 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
 62class 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);
 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.
 74  void set_max_reports_per_day(int reports) {
 75    max_reports_per_day_ = reports;
 76  }
 77
 78  int max_reports_per_day() const { return max_reports_per_day_; }
 79
 80  // Sends the specified minidump file, 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> &parameters,
 92                               const wstring &dump_file_name,
 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__