b2g/app/nsBrowserApp.cpp@97036ab72558
b2g/app/nsBrowserApp.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #include "nsXULAppAPI.h"
7 #include "application.ini.h"
8 #include "nsXPCOMGlue.h"
9 #if defined(XP_WIN)
10 #include <windows.h>
11 #include <stdlib.h>
12 #elif defined(XP_UNIX)
13 #include <sys/time.h>
14 #include <sys/resource.h>
15 #include <unistd.h>
16 #endif
18 #include <stdio.h>
19 #include <stdarg.h>
21 #include "nsCOMPtr.h"
22 #include "nsIFile.h"
23 #include "nsStringGlue.h"
25 #ifdef XP_WIN
26 // we want a wmain entry point
27 #include "nsWindowsWMain.cpp"
28 #define snprintf _snprintf
29 #define strcasecmp _stricmp
30 #endif
32 #ifdef MOZ_WIDGET_GONK
33 #include "GonkDisplay.h"
34 #endif
36 #include "BinaryPath.h"
38 #include "nsXPCOMPrivate.h" // for MAXPATHLEN and XPCOM_DLL
40 #ifdef MOZ_WIDGET_GONK
41 # include <binder/ProcessState.h>
42 #endif
44 #include "mozilla/Telemetry.h"
45 #include "mozilla/WindowsDllBlocklist.h"
47 static void Output(const char *fmt, ... )
48 {
49 va_list ap;
50 va_start(ap, fmt);
52 #if defined(XP_WIN) && !MOZ_WINCONSOLE
53 char16_t msg[2048];
54 _vsnwprintf(msg, sizeof(msg)/sizeof(msg[0]), NS_ConvertUTF8toUTF16(fmt).get(), ap);
55 MessageBoxW(nullptr, msg, L"XULRunner", MB_OK | MB_ICONERROR);
56 #else
57 vfprintf(stderr, fmt, ap);
58 #endif
60 va_end(ap);
61 }
63 /**
64 * Return true if |arg| matches the given argument name.
65 */
66 static bool IsArg(const char* arg, const char* s)
67 {
68 if (*arg == '-')
69 {
70 if (*++arg == '-')
71 ++arg;
72 return !strcasecmp(arg, s);
73 }
75 #if defined(XP_WIN)
76 if (*arg == '/')
77 return !strcasecmp(++arg, s);
78 #endif
80 return false;
81 }
83 /**
84 * A helper class which calls NS_LogInit/NS_LogTerm in its scope.
85 */
86 class ScopedLogging
87 {
88 public:
89 ScopedLogging() { NS_LogInit(); }
90 ~ScopedLogging() { NS_LogTerm(); }
91 };
93 XRE_GetFileFromPathType XRE_GetFileFromPath;
94 XRE_CreateAppDataType XRE_CreateAppData;
95 XRE_FreeAppDataType XRE_FreeAppData;
96 XRE_TelemetryAccumulateType XRE_TelemetryAccumulate;
97 XRE_mainType XRE_main;
99 static const nsDynamicFunctionLoad kXULFuncs[] = {
100 { "XRE_GetFileFromPath", (NSFuncPtr*) &XRE_GetFileFromPath },
101 { "XRE_CreateAppData", (NSFuncPtr*) &XRE_CreateAppData },
102 { "XRE_FreeAppData", (NSFuncPtr*) &XRE_FreeAppData },
103 { "XRE_TelemetryAccumulate", (NSFuncPtr*) &XRE_TelemetryAccumulate },
104 { "XRE_main", (NSFuncPtr*) &XRE_main },
105 { nullptr, nullptr }
106 };
108 static int do_main(int argc, char* argv[])
109 {
110 nsCOMPtr<nsIFile> appini;
111 nsresult rv;
113 // Allow firefox.exe to launch XULRunner apps via -app <application.ini>
114 // Note that -app must be the *first* argument.
115 const char *appDataFile = getenv("XUL_APP_FILE");
116 if (appDataFile && *appDataFile) {
117 rv = XRE_GetFileFromPath(appDataFile, getter_AddRefs(appini));
118 if (NS_FAILED(rv)) {
119 Output("Invalid path found: '%s'", appDataFile);
120 return 255;
121 }
122 }
123 else if (argc > 1 && IsArg(argv[1], "app")) {
124 if (argc == 2) {
125 Output("Incorrect number of arguments passed to -app");
126 return 255;
127 }
129 rv = XRE_GetFileFromPath(argv[2], getter_AddRefs(appini));
130 if (NS_FAILED(rv)) {
131 Output("application.ini path not recognized: '%s'", argv[2]);
132 return 255;
133 }
135 char appEnv[MAXPATHLEN];
136 snprintf(appEnv, MAXPATHLEN, "XUL_APP_FILE=%s", argv[2]);
137 if (putenv(appEnv)) {
138 Output("Couldn't set %s.\n", appEnv);
139 return 255;
140 }
141 argv[2] = argv[0];
142 argv += 2;
143 argc -= 2;
144 }
146 #ifdef MOZ_WIDGET_GONK
147 /* Called to start the boot animation */
148 (void) mozilla::GetGonkDisplay();
149 #endif
151 if (appini) {
152 nsXREAppData *appData;
153 rv = XRE_CreateAppData(appini, &appData);
154 if (NS_FAILED(rv)) {
155 Output("Couldn't read application.ini");
156 return 255;
157 }
158 int result = XRE_main(argc, argv, appData, 0);
159 XRE_FreeAppData(appData);
160 return result;
161 }
163 return XRE_main(argc, argv, &sAppData, 0);
164 }
166 int main(int argc, char* argv[])
167 {
168 char exePath[MAXPATHLEN];
170 #ifdef MOZ_WIDGET_GONK
171 // This creates a ThreadPool for binder ipc. A ThreadPool is necessary to
172 // receive binder calls, though not necessary to send binder calls.
173 // ProcessState::Self() also needs to be called once on the main thread to
174 // register the main thread with the binder driver.
175 android::ProcessState::self()->startThreadPool();
176 #endif
178 nsresult rv = mozilla::BinaryPath::Get(argv[0], exePath);
179 if (NS_FAILED(rv)) {
180 Output("Couldn't calculate the application directory.\n");
181 return 255;
182 }
184 char *lastSlash = strrchr(exePath, XPCOM_FILE_PATH_SEPARATOR[0]);
185 if (!lastSlash || ((lastSlash - exePath) + sizeof(XPCOM_DLL) + 1 > MAXPATHLEN))
186 return 255;
188 strcpy(++lastSlash, XPCOM_DLL);
190 #if defined(XP_UNIX)
191 // If the b2g app is launched from adb shell, then the shell will wind
192 // up being the process group controller. This means that we can't send
193 // signals to the process group (useful for profiling).
194 // We ignore the return value since setsid() fails if we're already the
195 // process group controller (the normal situation).
196 (void)setsid();
197 #endif
199 int gotCounters;
200 #if defined(XP_UNIX)
201 struct rusage initialRUsage;
202 gotCounters = !getrusage(RUSAGE_SELF, &initialRUsage);
203 #elif defined(XP_WIN)
204 IO_COUNTERS ioCounters;
205 gotCounters = GetProcessIoCounters(GetCurrentProcess(), &ioCounters);
206 #endif
208 #ifdef HAS_DLL_BLOCKLIST
209 DllBlocklist_Initialize();
210 #endif
212 // We do this because of data in bug 771745
213 XPCOMGlueEnablePreload();
215 rv = XPCOMGlueStartup(exePath);
216 if (NS_FAILED(rv)) {
217 Output("Couldn't load XPCOM.\n");
218 return 255;
219 }
220 // Reset exePath so that it is the directory name and not the xpcom dll name
221 *lastSlash = 0;
223 rv = XPCOMGlueLoadXULFunctions(kXULFuncs);
224 if (NS_FAILED(rv)) {
225 Output("Couldn't load XRE functions.\n");
226 return 255;
227 }
229 if (gotCounters) {
230 #if defined(XP_WIN)
231 XRE_TelemetryAccumulate(mozilla::Telemetry::EARLY_GLUESTARTUP_READ_OPS,
232 int(ioCounters.ReadOperationCount));
233 XRE_TelemetryAccumulate(mozilla::Telemetry::EARLY_GLUESTARTUP_READ_TRANSFER,
234 int(ioCounters.ReadTransferCount / 1024));
235 IO_COUNTERS newIoCounters;
236 if (GetProcessIoCounters(GetCurrentProcess(), &newIoCounters)) {
237 XRE_TelemetryAccumulate(mozilla::Telemetry::GLUESTARTUP_READ_OPS,
238 int(newIoCounters.ReadOperationCount - ioCounters.ReadOperationCount));
239 XRE_TelemetryAccumulate(mozilla::Telemetry::GLUESTARTUP_READ_TRANSFER,
240 int((newIoCounters.ReadTransferCount - ioCounters.ReadTransferCount) / 1024));
241 }
242 #elif defined(XP_UNIX)
243 XRE_TelemetryAccumulate(mozilla::Telemetry::EARLY_GLUESTARTUP_HARD_FAULTS,
244 int(initialRUsage.ru_majflt));
245 struct rusage newRUsage;
246 if (!getrusage(RUSAGE_SELF, &newRUsage)) {
247 XRE_TelemetryAccumulate(mozilla::Telemetry::GLUESTARTUP_HARD_FAULTS,
248 int(newRUsage.ru_majflt - initialRUsage.ru_majflt));
249 }
250 #endif
251 }
253 int result;
254 {
255 ScopedLogging log;
256 result = do_main(argc, argv);
257 }
259 return result;
260 }
