cef/include/capi/cef_crash_util_capi.h

// Copyright (c) 2020 Marshall A. Greenblatt. All rights reserved.
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#ifndef CEF_INCLUDE_CAPI_CEF_CRASH_UTIL_CAPI_H_
#define CEF_INCLUDE_CAPI_CEF_CRASH_UTIL_CAPI_H_
#pragma once

#include "include/capi/cef_base_capi.h"

#ifdef __cplusplus
extern "C" {
#endif

///
// Crash reporting is configured using an INI-style config file named
// "crash_reporter.cfg". On Windows and Linux this file must be placed next to
// the main application executable. On macOS this file must be placed in the
// top-level app bundle Resources directory (e.g.
// "<appname>.app/Contents/Resources"). File contents are as follows:
//
//  # Comments start with a hash character and must be on their own line.
//
//  [Config]
//  ProductName=<Value of the "prod" crash key; defaults to "cef">
//  ProductVersion=<Value of the "ver" crash key; defaults to the CEF version>
//  AppName=<Windows only; App-specific folder name component for storing crash
//           information; default to "CEF">
//  ExternalHandler=<Windows only; Name of the external handler exe to use
//                   instead of re-launching the main exe; default to empty>
//  BrowserCrashForwardingEnabled=<macOS only; True if browser process crashes
//                                 should be forwarded to the system crash
//                                 reporter; default to false>
//  ServerURL=<crash server URL; default to empty>
//  RateLimitEnabled=<True if uploads should be rate limited; default to true>
//  MaxUploadsPerDay=<Max uploads per 24 hours, used if rate limit is enabled;
//                    default to 5>
//  MaxDatabaseSizeInMb=<Total crash report disk usage greater than this value
//                       will cause older reports to be deleted; default to 20>
//  MaxDatabaseAgeInDays=<Crash reports older than this value will be deleted;
//                        default to 5>
//
//  [CrashKeys]
//  my_key1=<small|medium|large>
//  my_key2=<small|medium|large>
//
// Config section:
//
// If "ProductName" and/or "ProductVersion" are set then the specified values
// will be included in the crash dump metadata. On macOS if these values are set
// to NULL then they will be retrieved from the Info.plist file using the
// "CFBundleName" and "CFBundleShortVersionString" keys respectively.
//
// If "AppName" is set on Windows then crash report information (metrics,
// database and dumps) will be stored locally on disk under the
// "C:\Users\[CurrentUser]\AppData\Local\[AppName]\User Data" folder. On other
// platforms the CefSettings.user_data_path value will be used.
//
// If "ExternalHandler" is set on Windows then the specified exe will be
// launched as the crashpad-handler instead of re-launching the main process
// exe. The value can be an absolute path or a path relative to the main exe
// directory. On Linux the CefSettings.browser_subprocess_path value will be
// used. On macOS the existing subprocess app bundle will be used.
//
// If "BrowserCrashForwardingEnabled" is set to true (1) on macOS then browser
// process crashes will be forwarded to the system crash reporter. This results
// in the crash UI dialog being displayed to the user and crash reports being
// logged under "~/Library/Logs/DiagnosticReports". Forwarding of crash reports
// from non-browser processes and Debug builds is always disabled.
//
// If "ServerURL" is set then crashes will be uploaded as a multi-part POST
// request to the specified URL. Otherwise, reports will only be stored locally
// on disk.
//
// If "RateLimitEnabled" is set to true (1) then crash report uploads will be
// rate limited as follows:
//  1. If "MaxUploadsPerDay" is set to a positive value then at most the
//     specified number of crashes will be uploaded in each 24 hour period.
//  2. If crash upload fails due to a network or server error then an
//     incremental backoff delay up to a maximum of 24 hours will be applied for
//     retries.
//  3. If a backoff delay is applied and "MaxUploadsPerDay" is > 1 then the
//     "MaxUploadsPerDay" value will be reduced to 1 until the client is
//     restarted. This helps to avoid an upload flood when the network or
//     server error is resolved.
// Rate limiting is not supported on Linux.
//
// If "MaxDatabaseSizeInMb" is set to a positive value then crash report storage
// on disk will be limited to that size in megabytes. For example, on Windows
// each dump is about 600KB so a "MaxDatabaseSizeInMb" value of 20 equates to
// about 34 crash reports stored on disk. Not supported on Linux.
//
// If "MaxDatabaseAgeInDays" is set to a positive value then crash reports older
// than the specified age in days will be deleted. Not supported on Linux.
//
// CrashKeys section:
//
// A maximum of 26 crash keys of each size can be specified for use by the
// application. Crash key values will be truncated based on the specified size
// (small = 64 bytes, medium = 256 bytes, large = 1024 bytes). The value of
// crash keys can be set from any thread or process using the
// CefSetCrashKeyValue function. These key/value pairs will be sent to the crash
// server along with the crash dump file.
///
CEF_EXPORT int cef_crash_reporting_enabled();

///
// Sets or clears a specific key-value pair from the crash metadata.
///
CEF_EXPORT void cef_set_crash_key_value(const cef_string_t* key,
                                        const cef_string_t* value);

#ifdef __cplusplus
}
#endif

#endif  // CEF_INCLUDE_CAPI_CEF_CRASH_UTIL_CAPI_H_