Bug 552864 part 1.5 - Move XRE_GetBinaryPath code in a dedicated class. r=tglek

This commit is contained in:
Mike Hommey 2011-05-22 08:23:20 +02:00
Родитель ee635fc2e8
Коммит 0f2ceea5a7
3 изменённых файлов: 181 добавлений и 150 удалений

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@ -192,6 +192,7 @@ LOCAL_INCLUDES += \
-I$(topsrcdir)/dom/ipc \
-I$(topsrcdir)/toolkit/crashreporter \
-I$(topsrcdir)/dom/base \
-I$(topsrcdir)/xpcom/build \
$(NULL)
LOCAL_INCLUDES += \

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@ -251,6 +251,7 @@ static char **gQtOnlyArgv;
#endif /* MOZ_X11 */
#include "nsGTKToolkit.h"
#endif
#include "BinaryPath.h"
// Save literal putenv string to environment variable.
static void
@ -1435,141 +1436,10 @@ RemoteCommandLine(const char* aDesktopStartupID)
}
#endif // MOZ_ENABLE_XREMOTE
#ifdef XP_MACOSX
static char const *gBinaryPath;
#endif
nsresult
XRE_GetBinaryPath(const char* argv0, nsILocalFile* *aResult)
{
nsresult rv;
nsCOMPtr<nsILocalFile> lf;
// We need to use platform-specific hackery to find the
// path of this executable. This is copied, with some modifications, from
// nsGREDirServiceProvider.cpp
#ifdef XP_WIN
PRUnichar exePath[MAXPATHLEN];
if (!::GetModuleFileNameW(0, exePath, MAXPATHLEN))
return NS_ERROR_FAILURE;
rv = NS_NewLocalFile(nsDependentString(exePath), PR_TRUE,
getter_AddRefs(lf));
if (NS_FAILED(rv))
return rv;
#elif defined(XP_MACOSX)
if (gBinaryPath)
return NS_NewNativeLocalFile(nsDependentCString(gBinaryPath), PR_FALSE,
aResult);
NS_NewNativeLocalFile(EmptyCString(), PR_TRUE, getter_AddRefs(lf));
nsCOMPtr<nsILocalFileMac> lfm (do_QueryInterface(lf));
if (!lfm)
return NS_ERROR_FAILURE;
// Works even if we're not bundled.
CFBundleRef appBundle = CFBundleGetMainBundle();
if (!appBundle)
return NS_ERROR_FAILURE;
CFURLRef executableURL = CFBundleCopyExecutableURL(appBundle);
if (!executableURL)
return NS_ERROR_FAILURE;
rv = lfm->InitWithCFURL(executableURL);
CFRelease(executableURL);
if (NS_FAILED(rv))
return rv;
// Callers expect a normalized path.
lfm->Normalize();
#elif defined(XP_UNIX)
struct stat fileStat;
char exePath[MAXPATHLEN];
char tmpPath[MAXPATHLEN];
rv = NS_ERROR_FAILURE;
// on unix, there is no official way to get the path of the current binary.
// instead of using the MOZILLA_FIVE_HOME hack, which doesn't scale to
// multiple applications, we will try a series of techniques:
//
// 1) look for /proc/<pid>/exe which is a symlink to the executable on newer
// Linux kernels
// 2) use realpath() on argv[0], which works unless we're loaded from the
// PATH
// 3) manually walk through the PATH and look for ourself
// 4) give up
// #ifdef __linux__
// Commented out because it used to not work because it used to not deal
// with readlink not null-terminating the buffer.
#if 0
int r = readlink("/proc/self/exe", exePath, MAXPATHLEN);
if (r > 0 && r < MAXPATHLEN) {
exePath[r] = '\0';
if (stat(exePath, &fileStat) == 0) {
rv = NS_OK;
}
}
#endif
if (NS_FAILED(rv) &&
realpath(argv0, exePath) && stat(exePath, &fileStat) == 0) {
rv = NS_OK;
}
if (NS_FAILED(rv)) {
const char *path = getenv("PATH");
if (!path)
return NS_ERROR_FAILURE;
char *pathdup = strdup(path);
if (!pathdup)
return NS_ERROR_OUT_OF_MEMORY;
PRBool found = PR_FALSE;
char *newStr = pathdup;
char *token;
while ( (token = nsCRT::strtok(newStr, ":", &newStr)) ) {
sprintf(tmpPath, "%s/%s", token, argv0);
if (realpath(tmpPath, exePath) && stat(exePath, &fileStat) == 0) {
found = PR_TRUE;
break;
}
}
free(pathdup);
if (!found)
return NS_ERROR_FAILURE;
}
rv = NS_NewNativeLocalFile(nsDependentCString(exePath), PR_TRUE,
getter_AddRefs(lf));
if (NS_FAILED(rv))
return rv;
#elif defined(XP_OS2)
PPIB ppib;
PTIB ptib;
char exePath[MAXPATHLEN];
DosGetInfoBlocks( &ptib, &ppib);
DosQueryModuleName( ppib->pib_hmte, MAXPATHLEN, exePath);
rv = NS_NewNativeLocalFile(nsDependentCString(exePath), PR_TRUE,
getter_AddRefs(lf));
if (NS_FAILED(rv))
return rv;
#else
#error Oops, you need platform-specific code here
#endif
NS_ADDREF(*aResult = lf);
return NS_OK;
return mozilla::BinaryPath::GetFile(argv0, aResult);
}
#define NS_ERROR_LAUNCHED_CHILD_PROCESS NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_PROFILE, 200)
@ -2821,16 +2691,6 @@ XRE_main(int argc, char* argv[], const nsXREAppData* aAppData)
NS_ENSURE_TRUE(aAppData, 2);
#ifdef XP_MACOSX
// The xulrunner stub executable tricks CFBundleGetMainBundle on
// purpose into lying about the main bundle path. It will set
// XRE_BINARY_PATH to inform us of our real location.
gBinaryPath = getenv("XRE_BINARY_PATH");
if (gBinaryPath && !*gBinaryPath)
gBinaryPath = nsnull;
#endif
// Check for application.ini overrides
const char* override = nsnull;
ar = CheckArg("override", PR_TRUE, &override);
@ -3750,14 +3610,6 @@ XRE_main(int argc, char* argv[], const nsXREAppData* aAppData)
SaveFileToEnvIfUnset("XRE_PROFILE_LOCAL_PATH", profLD);
SaveWordToEnvIfUnset("XRE_PROFILE_NAME", profileName);
#ifdef XP_MACOSX
if (gBinaryPath) {
static char kEnvVar[MAXPATHLEN];
sprintf(kEnvVar, "XRE_BINARY_PATH=%s", gBinaryPath);
PR_SetEnv(kEnvVar);
}
#endif
#ifdef MOZ_WIDGET_GTK2
MOZ_gdk_display_close(display);
#endif

178
xpcom/build/BinaryPath.h Normal file
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@ -0,0 +1,178 @@
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code
*
* The Initial Developer of the Original Code is
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mike Hommey <mh@glandium.org>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_BinaryPath_h
#define mozilla_BinaryPath_h
#include "nsXPCOMPrivate.h" // for MAXPATHLEN
#include "prtypes.h"
#ifdef XP_WIN
#include <windows.h>
#elif defined(XP_MACOSX)
#include <CoreFoundation/CoreFoundation.h>
#elif defined(XP_UNIX)
#include <sys/stat.h>
#endif
namespace mozilla {
class BinaryPath {
public:
#ifdef XP_WIN
static nsresult Get(const char *argv0, char aResult[MAXPATHLEN])
{
PRUnichar wide_path[MAXPATHLEN];
nsresult rv = GetW(argv0, wide_path);
if (NS_FAILED(rv))
return rv;
WideCharToMultiByte(CP_UTF8, 0, wide_path, -1,
aResult, MAXPATHLEN, NULL, NULL);
return NS_OK;
}
private:
static nsresult GetW(const char *argv0, PRUnichar aResult[MAXPATHLEN])
{
if (::GetModuleFileNameW(0, aResult, MAXPATHLEN))
return NS_OK;
return NS_ERROR_FAILURE;
}
#elif defined(XP_MACOSX)
static nsresult Get(const char *argv0, char aResult[MAXPATHLEN])
{
// Works even if we're not bundled.
CFBundleRef appBundle = CFBundleGetMainBundle();
if (!appBundle)
return NS_ERROR_FAILURE;
CFURLRef executableURL = CFBundleCopyExecutableURL(appBundle);
if (!executableURL)
return NS_ERROR_FAILURE;
nsresult rv;
if (CFURLGetFileSystemRepresentation(executableURL, false, (UInt8 *)aResult, MAXPATHLEN))
rv = NS_OK;
else
rv = NS_ERROR_FAILURE;
CFRelease(executableURL);
return rv;
}
#elif defined(XP_UNIX)
static nsresult Get(const char *argv0, char aResult[MAXPATHLEN])
{
struct stat fileStat;
// on unix, there is no official way to get the path of the current binary.
// instead of using the MOZILLA_FIVE_HOME hack, which doesn't scale to
// multiple applications, we will try a series of techniques:
//
// 1) use realpath() on argv[0], which works unless we're loaded from the
// PATH
// 2) manually walk through the PATH and look for ourself
// 3) give up
if (realpath(argv0, aResult) && stat(aResult, &fileStat) == 0)
return NS_OK;
const char *path = getenv("PATH");
if (!path)
return NS_ERROR_FAILURE;
char *pathdup = strdup(path);
if (!pathdup)
return NS_ERROR_OUT_OF_MEMORY;
PRBool found = PR_FALSE;
char *token = strtok(pathdup, ":");
while (token) {
char tmpPath[MAXPATHLEN];
sprintf(tmpPath, "%s/%s", token, argv0);
if (realpath(tmpPath, aResult) && stat(aResult, &fileStat) == 0) {
found = PR_TRUE;
break;
}
token = strtok(NULL, ":");
}
free(pathdup);
if (found)
return NS_OK;
return NS_ERROR_FAILURE;
}
#elif defined(XP_OS2)
static nsresult Get(const char *argv0, char aResult[MAXPATHLEN])
{
PPIB ppib;
PTIB ptib;
DosGetInfoBlocks( &ptib, &ppib);
DosQueryModuleName(ppib->pib_hmte, MAXPATHLEN, aResult);
}
#else
#error Oops, you need platform-specific code here
#endif
public:
static nsresult GetFile(const char *argv0, nsILocalFile* *aResult)
{
nsCOMPtr<nsILocalFile> lf;
#ifdef XP_WIN
PRUnichar exePath[MAXPATHLEN];
nsresult rv = GetW(argv0, exePath);
#else
char exePath[MAXPATHLEN];
nsresult rv = Get(argv0, exePath);
#endif
if (NS_FAILED(rv))
return rv;
#ifdef XP_WIN
rv = NS_NewLocalFile(nsDependentString(exePath), PR_TRUE,
getter_AddRefs(lf));
#else
rv = NS_NewNativeLocalFile(nsDependentCString(exePath), PR_TRUE,
getter_AddRefs(lf));
#endif
if (NS_FAILED(rv))
return rv;
NS_ADDREF(*aResult = lf);
return NS_OK;
}
};
}
#endif /* mozilla_BinaryPath_h */