gecko/xulrunner/stub/nsXULStub.cpp

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/* ***** 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 XULRunner.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Portions created by the Initial Developer are Copyright (C) 2005
* the Mozilla Foundation <http://www.mozilla.org/>. All Rights Reserved.
*
* Contributor(s):
*
* 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 ***** */
#include "nsXPCOMGlue.h"
#include "nsINIParser.h"
#include "prtypes.h"
#include "nsXPCOMPrivate.h" // for XP MAXPATHLEN
#include "nsMemory.h" // for NS_ARRAY_LENGTH
#include "nsXULAppAPI.h"
#include "nsILocalFile.h"
#include <stdarg.h>
#ifdef XP_WIN
#include <windows.h>
#include <io.h>
#define snprintf _snprintf
#define vsnprintf _vsnprintf
#define strcasecmp _stricmp
#define PATH_SEPARATOR_CHAR '\\'
#define R_OK 04
#elif defined(XP_MACOSX)
#include <unistd.h>
#include <sys/stat.h>
#include <CoreFoundation/CoreFoundation.h>
#define PATH_SEPARATOR_CHAR '/'
#elif defined (XP_OS2)
#define INCL_DOS
#define INCL_DOSMISC
#define INCL_DOSERRORS
#include <os2.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#define PATH_SEPARATOR_CHAR '\\'
#else
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#define PATH_SEPARATOR_CHAR '/'
#endif
#ifdef XP_WIN
#include "nsWindowsWMain.cpp"
#endif
#ifdef XP_BEOS
#include <Entry.h>
#include <Path.h>
#endif
#define VERSION_MAXLEN 128
static void Output(PRBool isError, const char *fmt, ... )
{
va_list ap;
va_start(ap, fmt);
#if (defined(XP_WIN) && !MOZ_WINCONSOLE) || defined(WINCE)
char msg[2048];
vsnprintf(msg, sizeof(msg), fmt, ap);
UINT flags = MB_OK;
if (isError)
flags |= MB_ICONERROR;
else
flags |= MB_ICONINFORMATION;
wchar_t wide_msg[1024];
MultiByteToWideChar(CP_ACP,
0,
msg,
-1,
wide_msg,
sizeof(wide_msg) / sizeof(wchar_t));
MessageBoxW(NULL, wide_msg, L"XULRunner", flags);
#else
vfprintf(stderr, fmt, ap);
#endif
va_end(ap);
}
/**
* Return true if |arg| matches the given argument name.
*/
static PRBool IsArg(const char* arg, const char* s)
{
if (*arg == '-')
{
if (*++arg == '-')
++arg;
return !strcasecmp(arg, s);
}
#if defined(XP_WIN) || defined(XP_OS2)
if (*arg == '/')
return !strcasecmp(++arg, s);
#endif
return PR_FALSE;
}
/**
* Return true if |aDir| is a valid file/directory.
*/
static PRBool FolderExists(const char* aDir)
{
#ifdef XP_WIN
wchar_t wideDir[MAX_PATH];
MultiByteToWideChar(CP_UTF8, 0, aDir, -1, wideDir, MAX_PATH);
DWORD fileAttrs = GetFileAttributesW(wideDir);
return fileAttrs != INVALID_FILE_ATTRIBUTES;
#else
return access(aDir, R_OK) == 0;
#endif
}
static nsresult GetRealPath(const char* appDataFile, char* *aResult)
{
#ifdef XP_WIN
wchar_t wAppDataFile[MAX_PATH];
wchar_t wIniPath[MAX_PATH];
MultiByteToWideChar(CP_UTF8, 0, appDataFile, -1, wAppDataFile, MAX_PATH);
_wfullpath(wIniPath, wAppDataFile, MAX_PATH);
WideCharToMultiByte(CP_UTF8, 0, wIniPath, -1, *aResult, MAX_PATH, 0, 0);
#else
struct stat fileStat;
if (!realpath(appDataFile, *aResult) || stat(*aResult, &fileStat))
return NS_ERROR_FAILURE;
#endif
if (!*aResult || !**aResult)
return NS_ERROR_FAILURE;
return NS_OK;
}
class AutoAppData
{
public:
AutoAppData(nsILocalFile* aINIFile) : mAppData(nsnull) {
nsresult rv = XRE_CreateAppData(aINIFile, &mAppData);
if (NS_FAILED(rv))
mAppData = nsnull;
}
~AutoAppData() {
if (mAppData)
XRE_FreeAppData(mAppData);
}
operator nsXREAppData*() const { return mAppData; }
nsXREAppData* operator -> () const { return mAppData; }
private:
nsXREAppData* mAppData;
};
XRE_CreateAppDataType XRE_CreateAppData;
XRE_FreeAppDataType XRE_FreeAppData;
XRE_mainType XRE_main;
#ifdef WINCE
void
ForwardToWindow(HWND wnd) {
// For WinCE, we're stuck with providing our own argv[0] for the remote
// command-line.
WCHAR wPath[MAX_PATH] = L"dummy ";
WCHAR *wCmd = ::GetCommandLineW();
WCHAR wCwd[MAX_PATH];
_wgetcwd(wCwd, MAX_PATH);
// Construct a narrow UTF8 buffer <path> <commandline>\0<workingdir>\0
size_t len = wcslen(wPath) + wcslen(wCmd) + wcslen(wCwd) + 2;
WCHAR *wMsg = (WCHAR *)malloc(len * sizeof(*wMsg));
wcscpy(wMsg, wPath);
wcscpy(wMsg + wcslen(wPath), wCmd); // The command line
wcscpy(wMsg + wcslen(wPath) + wcslen(wCmd) + 1, wCwd); // Working dir
// Then convert to UTF-8, assuming worst-case explosion of characters
char *msg = (char *)malloc(len * 4);
WideCharToMultiByte(CP_UTF8, 0, wMsg, len, msg, len * 4, NULL, NULL);
// We used to set dwData to zero, when we didn't send the working dir.
// Now we're using it as a version number.
COPYDATASTRUCT cds = { 1, len, (void *)msg };
// Bring the already running Mozilla process to the foreground.
// nsWindow will restore the window (if minimized) and raise it.
// for activating the existing window on wince we need "| 0x01"
// see http://msdn.microsoft.com/en-us/library/ms940024.aspx for details
::SetForegroundWindow((HWND)(((ULONG) wnd) | 0x01));
::SendMessage(wnd, WM_COPYDATA, 0, (LPARAM)&cds);
free(wMsg);
free(msg);
}
#endif
int
main(int argc, char **argv)
{
nsresult rv;
char *lastSlash;
char iniPath[MAXPATHLEN];
char tmpPath[MAXPATHLEN];
char greDir[MAXPATHLEN];
PRBool greFound = PR_FALSE;
#if defined(XP_MACOSX)
CFBundleRef appBundle = CFBundleGetMainBundle();
if (!appBundle)
return 1;
CFURLRef resourcesURL = CFBundleCopyResourcesDirectoryURL(appBundle);
if (!resourcesURL)
return 1;
CFURLRef absResourcesURL = CFURLCopyAbsoluteURL(resourcesURL);
CFRelease(resourcesURL);
if (!absResourcesURL)
return 1;
CFURLRef iniFileURL =
CFURLCreateCopyAppendingPathComponent(kCFAllocatorDefault,
absResourcesURL,
CFSTR("application.ini"),
false);
CFRelease(absResourcesURL);
if (!iniFileURL)
return 1;
CFStringRef iniPathStr =
CFURLCopyFileSystemPath(iniFileURL, kCFURLPOSIXPathStyle);
CFRelease(iniFileURL);
if (!iniPathStr)
return 1;
CFStringGetCString(iniPathStr, iniPath, sizeof(iniPath),
kCFStringEncodingUTF8);
CFRelease(iniPathStr);
#else
#ifdef XP_WIN
wchar_t wide_path[MAX_PATH];
if (!::GetModuleFileNameW(NULL, wide_path, MAX_PATH))
return 1;
WideCharToMultiByte(CP_UTF8, 0, wide_path,-1,
iniPath, MAX_PATH, NULL, NULL);
#elif defined(XP_OS2)
PPIB ppib;
PTIB ptib;
DosGetInfoBlocks(&ptib, &ppib);
DosQueryModuleName(ppib->pib_hmte, sizeof(iniPath), iniPath);
#elif defined(XP_BEOS)
BEntry e((const char *)argv[0], true); // traverse symlink
BPath p;
status_t err;
err = e.GetPath(&p);
NS_ASSERTION(err == B_OK, "realpath failed");
if (err == B_OK)
// p.Path returns a pointer, so use strcpy to store path in iniPath
strcpy(iniPath, p.Path());
#else
// 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
struct stat fileStat;
if (!realpath(argv[0], iniPath) || stat(iniPath, &fileStat)) {
const char *path = getenv("PATH");
if (!path)
return 1;
char *pathdup = strdup(path);
if (!pathdup)
return 1;
PRBool found = PR_FALSE;
char *token = strtok(pathdup, ":");
while (token) {
sprintf(tmpPath, "%s/%s", token, argv[0]);
if (realpath(tmpPath, iniPath) && stat(iniPath, &fileStat) == 0) {
found = PR_TRUE;
break;
}
token = strtok(NULL, ":");
}
free (pathdup);
if (!found)
return 1;
}
#endif
lastSlash = strrchr(iniPath, PATH_SEPARATOR_CHAR);
if (!lastSlash)
return 1;
*(++lastSlash) = '\0';
// On Linux/Win, look for XULRunner in appdir/xulrunner
snprintf(greDir, sizeof(greDir),
"%sxulrunner" XPCOM_FILE_PATH_SEPARATOR XPCOM_DLL,
iniPath);
greFound = FolderExists(greDir);
strncpy(lastSlash, "application.ini", sizeof(iniPath) - (lastSlash - iniPath));
#endif
// If -app parameter was passed in, it is now time to take it under
// consideration.
const char *appDataFile;
appDataFile = getenv("XUL_APP_FILE");
if (!appDataFile || !*appDataFile)
if (argc > 1 && IsArg(argv[1], "app")) {
if (argc == 2) {
Output(PR_FALSE, "specify APP-FILE (optional)\n");
return 1;
}
argv[1] = argv[0];
++argv;
--argc;
appDataFile = argv[1];
argv[1] = argv[0];
++argv;
--argc;
char kAppEnv[MAXPATHLEN];
snprintf(kAppEnv, MAXPATHLEN, "XUL_APP_FILE=%s", appDataFile);
if (putenv(kAppEnv))
Output(PR_FALSE, "Couldn't set %s.\n", kAppEnv);
char *result = (char*) calloc(sizeof(char), MAXPATHLEN);
if (NS_FAILED(GetRealPath(appDataFile, &result))) {
Output(PR_TRUE, "Invalid application.ini path.\n");
return 1;
}
// We have a valid application.ini path passed in to the -app parameter
// but not yet a valid greDir, so lets look for it also on the same folder
// as the stub.
if (!greFound) {
lastSlash = strrchr(iniPath, PATH_SEPARATOR_CHAR);
if (!lastSlash)
return 1;
*(++lastSlash) = '\0';
snprintf(greDir, sizeof(greDir), "%s" XPCOM_DLL, iniPath);
greFound = FolderExists(greDir);
}
// copy it back.
strcpy(iniPath, result);
}
nsINIParser parser;
rv = parser.Init(iniPath);
if (NS_FAILED(rv)) {
fprintf(stderr, "Could not read application.ini\n");
return 1;
}
#ifdef WINCE
// On Windows Mobile and WinCE, we can save a lot of time by not
// waiting for XUL and XPCOM to load up. Let's see if we can find
// an existing app window to forward our command-line to now.
// Shouldn't attempt this if the -no-remote parameter has been provided.
bool noRemote = false;
for (int i = 1; i < argc; i++) {
if (IsArg(argv[i], "no-remote")) {
noRemote = true;
break;
}
}
if (!noRemote) {
char windowName[512]; // Is there a const for appname like VERSION_MAXLEN?
rv = parser.GetString("App", "Name", windowName, sizeof(windowName));
if (NS_FAILED(rv)) {
fprintf(stderr, "Couldn't figure out the application name\n");
return 1;
}
// Lookup the hidden message window created by nsNativeAppSupport
strncat(windowName, "MessageWindow", sizeof(windowName) - strlen(windowName));
WCHAR wWindowName[512];
MultiByteToWideChar(CP_UTF8, 0, windowName, -1, wWindowName, sizeof(wWindowName));
HWND wnd = ::FindWindowW(wWindowName, NULL);
if (wnd) {
// Forward the command-line and bail out
ForwardToWindow(wnd);
return 0;
}
}
#endif
if (!greFound) {
char minVersion[VERSION_MAXLEN];
// If a gecko maxVersion is not specified, we assume that the app uses only
// frozen APIs, and is therefore compatible with any xulrunner 1.x.
char maxVersion[VERSION_MAXLEN] = "1.*";
GREVersionRange range = {
minVersion,
PR_TRUE,
maxVersion,
PR_TRUE
};
rv = parser.GetString("Gecko", "MinVersion", minVersion, sizeof(minVersion));
if (NS_FAILED(rv)) {
fprintf(stderr,
"The application.ini does not specify a [Gecko] MinVersion\n");
return 1;
}
rv = parser.GetString("Gecko", "MaxVersion", maxVersion, sizeof(maxVersion));
if (NS_SUCCEEDED(rv))
range.upperInclusive = PR_TRUE;
static const GREProperty kProperties[] = {
{ "xulrunner", "true" }
};
rv = GRE_GetGREPathWithProperties(&range, 1,
kProperties, NS_ARRAY_LENGTH(kProperties),
greDir, sizeof(greDir));
if (NS_FAILED(rv)) {
// XXXbsmedberg: Do something much smarter here: notify the
// user/offer to download/?
Output(PR_FALSE,
"Could not find compatible GRE between version %s and %s.\n",
range.lower, range.upper);
return 1;
}
#ifdef XP_UNIX
// Using a symlinked greDir will fail during startup. Not sure why, but if
// we resolve the symlink, everything works as expected.
char resolved_greDir[MAXPATHLEN] = "";
if (realpath(greDir, resolved_greDir) && *resolved_greDir) {
strncpy(greDir, resolved_greDir, MAXPATHLEN);
}
#endif
}
#ifdef XP_OS2
// On OS/2 we need to set BEGINLIBPATH to be able to find XULRunner DLLs
strcpy(tmpPath, greDir);
lastSlash = strrchr(tmpPath, PATH_SEPARATOR_CHAR);
if (lastSlash) {
*lastSlash = '\0';
}
DosSetExtLIBPATH(tmpPath, BEGIN_LIBPATH);
#endif
rv = XPCOMGlueStartup(greDir);
if (NS_FAILED(rv)) {
if (rv == NS_ERROR_OUT_OF_MEMORY) {
char applicationName[2000] = "this application";
parser.GetString("App", "Name", applicationName, sizeof(applicationName));
Output(PR_TRUE, "Not enough memory available to start %s.\n",
applicationName);
} else {
Output(PR_TRUE, "Couldn't load XPCOM.\n");
}
return 1;
}
static const nsDynamicFunctionLoad kXULFuncs[] = {
{ "XRE_CreateAppData", (NSFuncPtr*) &XRE_CreateAppData },
{ "XRE_FreeAppData", (NSFuncPtr*) &XRE_FreeAppData },
{ "XRE_main", (NSFuncPtr*) &XRE_main },
{ nsnull, nsnull }
};
rv = XPCOMGlueLoadXULFunctions(kXULFuncs);
if (NS_FAILED(rv)) {
Output(PR_TRUE, "Couldn't load XRE functions.\n");
return 1;
}
NS_LogInit();
int retval;
{ // Scope COMPtr and AutoAppData
nsCOMPtr<nsILocalFile> iniFile;
#ifdef XP_WIN
// On Windows and Windows CE, iniPath is UTF-8 encoded,
// so we need to convert it.
rv = NS_NewLocalFile(NS_ConvertUTF8toUTF16(iniPath), PR_FALSE,
getter_AddRefs(iniFile));
#else
rv = NS_NewNativeLocalFile(nsDependentCString(iniPath), PR_FALSE,
getter_AddRefs(iniFile));
#endif
if (NS_FAILED(rv)) {
Output(PR_TRUE, "Couldn't find application.ini file.\n");
return 1;
}
AutoAppData appData(iniFile);
if (!appData) {
Output(PR_TRUE, "Error: couldn't parse application.ini.\n");
return 1;
}
NS_ASSERTION(appData->directory, "Failed to get app directory.");
if (!appData->xreDirectory) {
// chop "libxul.so" off the GRE path
lastSlash = strrchr(greDir, PATH_SEPARATOR_CHAR);
if (lastSlash) {
*lastSlash = '\0';
}
#ifdef XP_WIN
// same as iniPath.
NS_NewLocalFile(NS_ConvertUTF8toUTF16(greDir), PR_FALSE,
&appData->xreDirectory);
#else
NS_NewNativeLocalFile(nsDependentCString(greDir), PR_FALSE,
&appData->xreDirectory);
#endif
}
retval = XRE_main(argc, argv, appData);
}
NS_LogTerm();
XPCOMGlueShutdown();
return retval;
}