pjs/xulrunner/app/nsXULRunnerApp.cpp

336 строки
9.3 KiB
C++

/* ***** 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.
*
* The Initial Developer of the Original Code is IBM Corporation.
* Portions created by IBM Corporation are Copyright (C) 2003
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@meer.net>
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* 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 <stdio.h>
#include <stdlib.h>
#ifdef XP_WIN
#include <windows.h>
#endif
#include "nsXULAppAPI.h"
#include "nsAppRunner.h"
#include "nsINIParser.h"
#include "nsILocalFile.h"
#include "nsCOMPtr.h"
#include "nsMemory.h"
#include "nsBuildID.h"
#include "plstr.h"
#include "prprf.h"
#include "prenv.h"
/**
* Output a string to the user. This method is really only meant to be used to
* output last-ditch error messages designed for developers NOT END USERS.
*
* @param isError
* Pass true to indicate severe errors.
* @param fmt
* printf-style format string followed by arguments.
*/
static void Output(PRBool isError, const char *fmt, ... )
{
va_list ap;
va_start(ap, fmt);
#if defined(XP_WIN) && !MOZ_WINCONSOLE
char *msg = PR_vsmprintf(fmt, ap);
if (msg)
{
UINT flags = MB_OK;
if (isError)
flags |= MB_ICONERROR;
else
flags |= MB_ICONINFORMATION;
MessageBox(NULL, msg, "XULRunner", flags);
PR_smprintf_free(msg);
}
#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 !PL_strcasecmp(arg, s);
}
#if defined(XP_WIN) || defined(XP_OS2)
if (*arg == '/')
return !PL_strcasecmp(++arg, s);
#endif
return PR_FALSE;
}
/**
* Version checking.
*/
static PRUint32 geckoVersion = 0;
static PRUint32 ParseVersion(const char *versionStr)
{
PRUint16 major, minor;
if (PR_sscanf(versionStr, "%hu.%hu", &major, &minor) != 2) {
NS_WARNING("invalid version string");
return 0;
}
return PRUint32(major) << 16 | PRUint32(minor);
}
static PRBool CheckMinVersion(const char *versionStr)
{
PRUint32 v = ParseVersion(versionStr);
return geckoVersion >= v;
}
static PRBool CheckMaxVersion(const char *versionStr)
{
PRUint32 v = ParseVersion(versionStr);
return geckoVersion <= v;
}
/**
* Parse application data.
*/
static int LoadAppData(const char* appDataFile, nsXREAppData* aResult)
{
static char vendor[256], name[256], version[32], buildID[32], appID[256], copyright[512];
nsresult rv;
nsCOMPtr<nsILocalFile> lf;
XRE_GetFileFromPath(appDataFile, getter_AddRefs(lf));
if (!lf)
return 2;
nsCOMPtr<nsIFile> appDir;
rv = lf->GetParent(getter_AddRefs(appDir));
if (NS_FAILED(rv))
return 2;
rv = CallQueryInterface(appDir, &aResult->directory);
if (NS_FAILED(rv))
return 2;
nsINIParser parser;
rv = parser.Init(lf);
if (NS_FAILED(rv))
return 2;
// Gecko version checking
//
// TODO: If these version checks fail, then look for a compatible XULRunner
// version on the system, and launch it instead.
char gkVersion[32];
rv = parser.GetString("Gecko", "MinVersion", gkVersion, sizeof(gkVersion));
if (NS_FAILED(rv) || !CheckMinVersion(gkVersion)) {
Output(PR_TRUE, "Error: Gecko MinVersion requirement not met.\n");
return 1;
}
rv = parser.GetString("Gecko", "MaxVersion", gkVersion, sizeof(gkVersion));
if (NS_SUCCEEDED(rv) && !CheckMaxVersion(gkVersion)) {
Output(PR_TRUE, "Error: Gecko MaxVersion requirement not met.\n");
return 1;
}
PRUint32 i;
// Read string-valued fields
const struct {
const char *key;
const char **fill;
char *buf;
size_t bufLen;
PRBool required;
} string_fields[] = {
{ "Vendor", &aResult->vendor, vendor, sizeof(vendor), PR_FALSE },
{ "Name", &aResult->name, name, sizeof(name), PR_TRUE },
{ "Version", &aResult->version, version, sizeof(version), PR_FALSE },
{ "BuildID", &aResult->buildID, buildID, sizeof(buildID), PR_TRUE },
{ "ID", &aResult->ID, appID, sizeof(appID), PR_FALSE },
{ "Copyright", &aResult->copyright, copyright, sizeof(copyright), PR_FALSE }
};
for (i = 0; i < NS_ARRAY_LENGTH(string_fields); ++i) {
rv = parser.GetString("App", string_fields[i].key, string_fields[i].buf,
string_fields[i].bufLen);
if (NS_SUCCEEDED(rv)) {
*string_fields[i].fill = string_fields[i].buf;
}
else if (string_fields[i].required) {
Output(PR_TRUE, "Error: %x: No \"%s\" field.\n",
rv, string_fields[i].key);
return 1;
}
}
// Read boolean-valued fields
const struct {
const char* key;
PRUint32 flag;
} boolean_fields[] = {
{ "EnableProfileMigrator", NS_XRE_ENABLE_PROFILE_MIGRATOR },
{ "EnableExtensionManager", NS_XRE_ENABLE_EXTENSION_MANAGER }
};
char buf[6]; // large enough to hold "false"
aResult->flags = 0;
for (i = 0; i < NS_ARRAY_LENGTH(boolean_fields); ++i) {
rv = parser.GetString("XRE", boolean_fields[i].key, buf, sizeof(buf));
// accept a truncated result since we are only interested in the
// first character. this is designed to allow the possibility of
// expanding these boolean attributes to express additional options.
if ((NS_SUCCEEDED(rv) || rv == NS_ERROR_LOSS_OF_SIGNIFICANT_DATA) &&
(buf[0] == '1' || buf[0] == 't' || buf[0] == 'T')) {
aResult->flags |= boolean_fields[i].flag;
}
}
#ifdef DEBUG
printf("---------------------------------------------------------\n");
printf(" Vendor %s\n", aResult->vendor);
printf(" Name %s\n", aResult->name);
printf(" Version %s\n", aResult->version);
printf(" BuildID %s\n", aResult->buildID);
printf(" Copyright %s\n", aResult->copyright);
printf(" Flags %08x\n", aResult->flags);
printf("---------------------------------------------------------\n");
#endif
return 0;
}
static void Usage()
{
// display additional information (XXX make localizable?)
Output(PR_FALSE,
"Mozilla XULRunner " MOZILLA_VERSION " %d\n\n"
"Usage: " XULRUNNER_PROGNAME
" [OPTIONS] [APP-FILE [APP-OPTIONS...]]\n"
"\n"
"OPTIONS\n"
" --app specify APP-FILE (optional)\n"
" -h, --help show this message\n"
" -v, --version show version\n"
"\n"
"APP-FILE\n"
" Application initialization file.\n"
"\n"
"APP-OPTIONS\n"
" Application specific options.\n",
BUILD_ID);
}
int main(int argc, char* argv[])
{
if (argc > 1 && (IsArg(argv[1], "h") ||
IsArg(argv[1], "help") ||
IsArg(argv[1], "?")))
{
Usage();
return 0;
}
if (argc == 2 && (IsArg(argv[1], "v") || IsArg(argv[1], "version")))
{
Output(PR_FALSE, "Mozilla XULRunner " MOZILLA_VERSION " %d\n",
BUILD_ID);
return 0;
}
geckoVersion = ParseVersion(GRE_BUILD_ID);
const char *appDataFile = PR_GetEnv("XUL_APP_FILE");
if (!(appDataFile && *appDataFile)) {
if (argc < 2) {
Usage();
return 1;
}
if (IsArg(argv[1], "app")) {
if (argc == 2) {
Usage();
return 1;
}
argv[1] = argv[0];
++argv;
--argc;
}
appDataFile = argv[1];
argv[1] = argv[0];
++argv;
--argc;
static char kAppEnv[MAXPATHLEN];
PR_snprintf(kAppEnv, MAXPATHLEN, "XUL_APP_FILE=%s", appDataFile);
PR_SetEnv(kAppEnv);
}
nsXREAppData appData = { sizeof(nsXREAppData), 0 };
int rv = LoadAppData(appDataFile, &appData);
if (!rv)
rv = XRE_main(argc, argv, &appData);
NS_IF_RELEASE(appData.directory);
return rv;
}
#if defined( XP_WIN ) && defined( WIN32 ) && !defined(__GNUC__)
// We need WinMain in order to not be a console app. This function is
// unused if we are a console application.
int WINAPI WinMain( HINSTANCE, HINSTANCE, LPSTR args, int )
{
// Do the real work.
return main( __argc, __argv );
}
#endif