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 // Framework to provide a simple C API to crash reporting for
31 // applications.  By default, if any machine-level exception (e.g.,
32 // EXC_BAD_ACCESS) occurs, it will be handled by the BreakpadRef
33 // object as follows:
34 //
35 // 1. Create a minidump file (see Breakpad for details)
36 // 2. Prompt the user (using CFUserNotification)
37 // 3. Invoke a command line reporting tool to send the minidump to a
38 //    server
39 //
40 // By specifying parameters to the BreakpadCreate function, you can
41 // modify the default behavior to suit your needs and wants and
42 // desires.
43 
44 // A service name associated with the original bootstrap parent port, saved in
45 // OnDemandServer and restored in Inspector.
46 #define BREAKPAD_BOOTSTRAP_PARENT_PORT    "com.Breakpad.BootstrapParent"
47 
48 typedef void *BreakpadRef;
49 
50 #ifdef __cplusplus
51 extern "C" {
52 #endif
53 
54 #include <CoreFoundation/CoreFoundation.h>
55 #include <Foundation/Foundation.h>
56 
57 #include "BreakpadDefines.h"
58 
59 // Optional user-defined function to dec to decide if we should handle
60 // this crash or forward it along.
61 // Return true if you want Breakpad to handle it.
62 // Return false if you want Breakpad to skip it
63 // The exception handler always returns false, as if SEND_AND_EXIT were false
64 // (which means the next exception handler will take the exception)
65 typedef bool (*BreakpadFilterCallback)(int exception_type,
66                                        int exception_code,
67                                        mach_port_t crashing_thread,
68                                        void *context);
69 
70 // Create a new BreakpadRef object and install it as an exception
71 // handler.  The |parameters| will typically be the contents of your
72 // bundle's Info.plist.
73 //
74 // You can also specify these additional keys for customizable behavior:
75 // Key:                           Value:
76 // BREAKPAD_PRODUCT               Product name (e.g., "MyAwesomeProduct")
77 //                                This one is used as the key to identify
78 //                                the product when uploading. Falls back to
79 //                                CFBundleName if not specified.
80 //                                REQUIRED
81 //
82 // BREAKPAD_PRODUCT_DISPLAY       This is the display name, e.g. a pretty
83 //                                name for the product when the crash_sender
84 //                                pops up UI for the user. Falls back first to
85 //                                CFBundleDisplayName and then to
86 //                                BREAKPAD_PRODUCT if not specified.
87 //
88 // BREAKPAD_VERSION               Product version (e.g., 1.2.3), used
89 //                                as metadata for crash report. Falls back to
90 //                                CFBundleVersion if not specified.
91 //                                REQUIRED
92 //
93 // BREAKPAD_VENDOR                Vendor name, used in UI (e.g. "A report has
94 //                                been created that you can send to <vendor>")
95 //
96 // BREAKPAD_URL                   URL destination for reporting
97 //                                REQUIRED
98 //
99 // BREAKPAD_REPORT_INTERVAL       # of seconds between sending
100 //                                reports.  If an additional report is
101 //                                generated within this time, it will
102 //                                be ignored.  Default: 3600sec.
103 //                                Specify 0 to send all reports.
104 //
105 // BREAKPAD_SKIP_CONFIRM          If true, the reporter will send the report
106 //                                without any user intervention.
107 //                                Defaults to NO
108 //
109 // BREAKPAD_CONFIRM_TIMEOUT       Number of seconds before the upload
110 //                                confirmation dialog will be automatically
111 //                                dismissed (cancelling the upload).
112 //                                Default: 300 seconds (min of 60).
113 //                                Specify 0 to prevent timeout.
114 //
115 // BREAKPAD_SEND_AND_EXIT         If true, the handler will exit after sending.
116 //                                This will prevent any other handler (e.g.,
117 //                                CrashReporter) from getting the crash.
118 //                                Defaults TO YES
119 //
120 // BREAKPAD_DUMP_DIRECTORY        The directory to store crash-dumps
121 //                                in. By default, we use
122 //                                ~/Library/Breakpad/<BREAKPAD_PRODUCT>
123 //                                The path you specify here is tilde-expanded.
124 //
125 // BREAKPAD_INSPECTOR_LOCATION    The full path to the Inspector executable.
126 //                                Defaults to <Framework resources>/Inspector
127 //
128 // BREAKPAD_REPORTER_EXE_LOCATION The full path to the Reporter/sender
129 //                                executable.
130 //                                Default:
131 //                                <Framework Resources>/crash_report_sender.app
132 //
133 // BREAKPAD_LOGFILES              Indicates an array of log file paths that
134 //                                should be uploaded at crash time.
135 //
136 // BREAKPAD_REQUEST_COMMENTS      If true, the message dialog will have a
137 //                                text box for the user to enter comments.
138 //                                Default: NO
139 //
140 // BREAKPAD_REQUEST_EMAIL         If true and BREAKPAD_REQUEST_COMMENTS is also
141 //                                true, the message dialog will have a text
142 //                                box for the user to enter their email address.
143 //                                Default: NO
144 //
145 // BREAKPAD_SERVER_TYPE           A parameter that tells Breakpad how to
146 //                                rewrite the upload parameters for a specific
147 //                                server type.  The currently valid values are
148 //                                'socorro' or 'google'.  If you want to add
149 //                                other types, see the function in
150 //                                crash_report_sender.m that maps parameters to
151 //                                URL parameters.  Defaults to 'google'.
152 //
153 // BREAKPAD_SERVER_PARAMETER_DICT A plist dictionary of static
154 //                                parameters that are uploaded to the
155 //                                server.  The parameters are sent as
156 //                                is to the crash server.  Their
157 //                                content isn't added to the minidump
158 //                                but pass as URL parameters when
159 //                                uploading theminidump to the crash
160 //                                server.
161 //
162 // BREAKPAD_IN_PROCESS            A boolean NSNumber value. If YES, Breakpad
163 //                                will write the dump file in-process and then
164 //                                launch the reporter executable as a child
165 //                                process.
166 //=============================================================================
167 // The BREAKPAD_PRODUCT, BREAKPAD_VERSION and BREAKPAD_URL are
168 // required to have non-NULL values.  By default, the BREAKPAD_PRODUCT
169 // will be the CFBundleName and the BREAKPAD_VERSION will be the
170 // CFBundleVersion when these keys are present in the bundle's
171 // Info.plist, which is usually passed in to BreakpadCreate() as an
172 // NSDictionary (you could also pass in another dictionary that had
173 // the same keys configured).  If the BREAKPAD_PRODUCT or
174 // BREAKPAD_VERSION are ultimately undefined, BreakpadCreate() will
175 // fail.  You have been warned.
176 //
177 // If you are running in a debugger, Breakpad will not install, unless the
178 // BREAKPAD_IGNORE_DEBUGGER envionment variable is set and/or non-zero.
179 //
180 // The BREAKPAD_SKIP_CONFIRM and BREAKPAD_SEND_AND_EXIT default
181 // values are NO and YES.  However, they can be controlled by setting their
182 // values in a user or global plist.
183 //
184 // It's easiest to use Breakpad via the Framework, but if you're compiling the
185 // code in directly, BREAKPAD_INSPECTOR_LOCATION and
186 // BREAKPAD_REPORTER_EXE_LOCATION allow you to specify custom paths
187 // to the helper executables.
188 //
189 //=============================================================================
190 // The following are NOT user-supplied but are documented here for
191 // completeness.  They are calculated by Breakpad during initialization &
192 // crash-dump generation, or entered in by the user.
193 //
194 // BREAKPAD_PROCESS_START_TIME       The time, in seconds since the Epoch, the
195 //                                   process started
196 //
197 // BREAKPAD_PROCESS_CRASH_TIME       The time, in seconds since the Epoch, the
198 //                                   process crashed.
199 //
200 // BREAKPAD_PROCESS_UP_TIME          The total time in milliseconds the process
201 //                                   has been running.  This parameter is not
202 //                                   set until the crash-dump-generation phase.
203 //
204 // BREAKPAD_LOGFILE_KEY_PREFIX       Used to find out which parameters in the
205 //                                   parameter dictionary correspond to log
206 //                                   file paths.
207 //
208 // BREAKPAD_SERVER_PARAMETER_PREFIX  This prefix is used by Breakpad
209 //                                   internally, because Breakpad uses
210 //                                   the same dictionary internally to
211 //                                   track both its internal
212 //                                   configuration parameters and
213 //                                   parameters meant to be uploaded
214 //                                   to the server.  This string is
215 //                                   used internally by Breakpad to
216 //                                   prefix user-supplied parameter
217 //                                   names so those can be sent to the
218 //                                   server without leaking Breakpad's
219 //                                   internal values.
220 //
221 // BREAKPAD_ON_DEMAND                Used internally to indicate to the
222 //                                   Reporter that we're sending on-demand,
223 //                                   not as result of a crash.
224 //
225 // BREAKPAD_COMMENTS                 The text the user provided as comments.
226 //                                   Only used in crash_report_sender.
227 
228 // Returns a new BreakpadRef object on success, NULL otherwise.
229 BreakpadRef BreakpadCreate(NSDictionary *parameters);
230 
231 // Uninstall and release the data associated with |ref|.
232 void BreakpadRelease(BreakpadRef ref);
233 
234 // Clients may set an optional callback which gets called when a crash
235 // occurs.  The callback function should return |true| if we should
236 // handle the crash, generate a crash report, etc. or |false| if we
237 // should ignore it and forward the crash (normally to CrashReporter).
238 // Context is a pointer to arbitrary data to make the callback with.
239 void BreakpadSetFilterCallback(BreakpadRef ref,
240                                BreakpadFilterCallback callback,
241                                void *context);
242 
243 // User defined key and value string storage.  Generally this is used
244 // to configure Breakpad's internal operation, such as whether the
245 // crash_sender should prompt the user, or the filesystem location for
246 // the minidump file.  See Breakpad.h for some parameters that can be
247 // set.  Anything longer than 255 bytes will be truncated. Note that
248 // the string is converted to UTF8 before truncation, so any multibyte
249 // character that straddles the 255(256 - 1 for terminator) byte limit
250 // will be mangled.
251 //
252 // A maximum number of 64 key/value pairs are supported.  An assert()
253 // will fire if more than this number are set.  Unfortunately, right
254 // now, the same dictionary is used for both Breakpad's parameters AND
255 // the Upload parameters.
256 //
257 // TODO (nealsid): Investigate how necessary this is if we don't
258 // automatically upload parameters to the server anymore.
259 // TODO (nealsid): separate server parameter dictionary from the
260 // dictionary used to configure Breakpad, and document limits for each
261 // independently.
262 void BreakpadSetKeyValue(BreakpadRef ref, NSString *key, NSString *value);
263 NSString *BreakpadKeyValue(BreakpadRef ref, NSString *key);
264 void BreakpadRemoveKeyValue(BreakpadRef ref, NSString *key);
265 
266 // You can use this method to specify parameters that will be uploaded
267 // to the crash server.  They will be automatically encoded as
268 // necessary.  Note that as mentioned above there are limits on both
269 // the number of keys and their length.
270 void BreakpadAddUploadParameter(BreakpadRef ref, NSString *key,
271                                 NSString *value);
272 
273 // This method will remove a previously-added parameter from the
274 // upload parameter set.
275 void BreakpadRemoveUploadParameter(BreakpadRef ref, NSString *key);
276 
277 // Add a log file for Breakpad to read and send upon crash dump
278 void BreakpadAddLogFile(BreakpadRef ref, NSString *logPathname);
279 
280 // Generate a minidump and send
281 void BreakpadGenerateAndSendReport(BreakpadRef ref);
282 
283 #ifdef __cplusplus
284 }
285 #endif
286