/*
* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import <Cocoa/Cocoa.h>
#import <CoreFoundation/CoreFoundation.h>
// We need to weak-import posix_spawn and friends as they're not available on Tiger.
// The BSD-level system headers do not have availability macros, so we redeclare the
// functions ourselves with the "weak" attribute.
#define WEAK_IMPORT __attribute__((weak))
#define POSIX_SPAWN_SETEXEC 0x0040
typedef void *posix_spawnattr_t;
typedef void *posix_spawn_file_actions_t;
int posix_spawnattr_init(posix_spawnattr_t *) WEAK_IMPORT;
int posix_spawn(pid_t * __restrict, const char * __restrict, const posix_spawn_file_actions_t *, const posix_spawnattr_t * __restrict, char *const __argv[ __restrict], char *const __envp[ __restrict]) WEAK_IMPORT;
int posix_spawnattr_setbinpref_np(posix_spawnattr_t * __restrict, size_t, cpu_type_t *__restrict, size_t *__restrict) WEAK_IMPORT;
int posix_spawnattr_setflags(posix_spawnattr_t *, short) WEAK_IMPORT;
static void displayErrorAndQuit(NSString *title, NSString *message)
{
NSApplicationLoad();
NSRunCriticalAlertPanel(title, message, @"Quit", nil, nil);
exit(0);
}
static int getLastVersionShown()
{
[[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObject:@"-1" forKey:@"StartPageShownInVersion"]];
return [[NSUserDefaults standardUserDefaults] integerForKey:@"StartPageShownInVersion"];
}
static void saveLastVersionShown(int lastVersion)
{
[[NSUserDefaults standardUserDefaults] setInteger:lastVersion forKey:@"StartPageShownInVersion"];
[[NSUserDefaults standardUserDefaults] synchronize];
}
static NSString *getPathForStartPage()
{
return [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"start.html"];
}
static int getCurrentVersion()
{
return [[[[NSBundle mainBundle] infoDictionary] valueForKey:(NSString *)kCFBundleVersionKey] intValue];
}
static int getShowStartPageVersion()
{
return getCurrentVersion() + 1;
}
static BOOL startPageDisabled()
{
return [[NSUserDefaults standardUserDefaults] boolForKey:@"StartPageDisabled"];
}
static void addStartPageToArgumentsIfNeeded(NSMutableArray *arguments)
{
if (startPageDisabled())
return;
if (getLastVersionShown() < getShowStartPageVersion()) {
saveLastVersionShown(getCurrentVersion());
NSString *startPagePath = getPathForStartPage();
if (startPagePath)
[arguments addObject:startPagePath];
}
}
static cpu_type_t preferredArchitecture()
{
#if defined(__ppc__)
return CPU_TYPE_POWERPC;
#elif defined(__LP64__)
return CPU_TYPE_X86_64;
#else
return CPU_TYPE_X86;
#endif
}
static void myExecve(NSString *executable, NSArray *args, NSDictionary *environment)
{
char **argv = (char **)calloc(sizeof(char *), [args count] + 1);
char **env = (char **)calloc(sizeof(char *), [environment count] + 1);
NSEnumerator *e = [args objectEnumerator];
NSString *s;
int i = 0;
while ((s = [e nextObject]))
argv[i++] = (char *) [s UTF8String];
e = [environment keyEnumerator];
i = 0;
while ((s = [e nextObject]))
env[i++] = (char *) [[NSString stringWithFormat:@"%@=%@", s, [environment objectForKey:s]] UTF8String];
if (posix_spawnattr_init && posix_spawn && posix_spawnattr_setbinpref_np && posix_spawnattr_setflags) {
posix_spawnattr_t attr;
posix_spawnattr_init(&attr);
cpu_type_t architecturePreference[] = { preferredArchitecture(), CPU_TYPE_X86 };
posix_spawnattr_setbinpref_np(&attr, 2, architecturePreference, 0);
short flags = POSIX_SPAWN_SETEXEC;
posix_spawnattr_setflags(&attr, flags);
posix_spawn(NULL, [executable fileSystemRepresentation], NULL, &attr, argv, env);
} else
execve([executable fileSystemRepresentation], argv, env);
}
static NSBundle *locateSafariBundle()
{
NSArray *applicationDirectories = NSSearchPathForDirectoriesInDomains(NSApplicationDirectory, NSAllDomainsMask, YES);
NSEnumerator *e = [applicationDirectories objectEnumerator];
NSString *applicationDirectory;
while ((applicationDirectory = [e nextObject])) {
NSString *possibleSafariPath = [applicationDirectory stringByAppendingPathComponent:@"Safari.app"];
NSBundle *possibleSafariBundle = [NSBundle bundleWithPath:possibleSafariPath];
if ([[possibleSafariBundle bundleIdentifier] isEqualToString:@"com.apple.Safari"])
return possibleSafariBundle;
}
CFURLRef safariURL = nil;
OSStatus err = LSFindApplicationForInfo(kLSUnknownCreator, CFSTR("com.apple.Safari"), nil, nil, &safariURL);
if (err != noErr)
displayErrorAndQuit(@"Unable to locate Safari", @"Nightly builds of WebKit require Safari to run. Please check that it is available and then try again.");
NSBundle *safariBundle = [NSBundle bundleWithPath:[(NSURL *)safariURL path]];
CFRelease(safariURL);
return safariBundle;
}
static NSString *currentMacOSXVersion()
{
SInt32 version;
if (Gestalt(gestaltSystemVersion, &version) != noErr)
return @"10.4";
return [NSString stringWithFormat:@"%x.%x", (version & 0xFF00) >> 8, (version & 0x00F0) >> 4];
}
static NSString *fallbackMacOSXVersion(NSString *systemVersion)
{
NSDictionary *fallbackVersionMap = [[NSUserDefaults standardUserDefaults] dictionaryForKey:@"FallbackSystemVersions"];
if (!fallbackVersionMap)
return nil;
NSString *fallbackSystemVersion = [fallbackVersionMap objectForKey:systemVersion];
if (!fallbackSystemVersion || ![fallbackSystemVersion isKindOfClass:[NSString class]])
return nil;
return fallbackSystemVersion;
}
static BOOL checkFrameworkPath(NSString *frameworkPath)
{
BOOL isDirectory = NO;
return [[NSFileManager defaultManager] fileExistsAtPath:frameworkPath isDirectory:&isDirectory] && isDirectory;
}
static BOOL checkSafariVersion(NSBundle *safariBundle)
{
NSString *safariBundleVersion = [[safariBundle infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey];
NSString *majorComponent = [[safariBundleVersion componentsSeparatedByString:@"."] objectAtIndex:0];
NSString *majorVersion = [majorComponent substringFromIndex:[majorComponent length] - 3];
return [majorVersion intValue] >= 530;
}
int main(int argc, char *argv[])
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
NSString *systemVersion = currentMacOSXVersion();
NSString *frameworkPath = [[[NSBundle mainBundle] privateFrameworksPath] stringByAppendingPathComponent:systemVersion];
BOOL frameworkPathIsUsable = checkFrameworkPath(frameworkPath);
if (!frameworkPathIsUsable) {
NSString *fallbackSystemVersion = fallbackMacOSXVersion(systemVersion);
if (fallbackSystemVersion) {
frameworkPath = [[[NSBundle mainBundle] privateFrameworksPath] stringByAppendingPathComponent:fallbackSystemVersion];
frameworkPathIsUsable = checkFrameworkPath(frameworkPath);
}
}
if (!frameworkPathIsUsable)
displayErrorAndQuit([NSString stringWithFormat:@"Mac OS X %@ is not supported", systemVersion],
[NSString stringWithFormat:@"Nightly builds of WebKit are not supported on Mac OS X %@ at this time.", systemVersion]);
NSString *pathToEnablerLib = [[NSBundle mainBundle] pathForResource:@"WebKitNightlyEnabler" ofType:@"dylib"];
NSBundle *safariBundle = locateSafariBundle();
NSString *executablePath = [safariBundle executablePath];
if (!checkSafariVersion(safariBundle)) {
NSString *safariVersion = [[safariBundle localizedInfoDictionary] objectForKey:@"CFBundleShortVersionString"];
displayErrorAndQuit([NSString stringWithFormat:@"Safari %@ is not supported", safariVersion],
[NSString stringWithFormat:@"Nightly builds of WebKit are not supported with Safari %@ at this time. Please update to a newer version of Safari.", safariVersion]);
}
if ([frameworkPath rangeOfString:@":"].location != NSNotFound ||
[pathToEnablerLib rangeOfString:@":"].location != NSNotFound)
displayErrorAndQuit(@"Unable to launch Safari",
@"WebKit is located at a path containing an unsupported character. Please move WebKit to a different location and try again.");
NSMutableArray *arguments = [NSMutableArray arrayWithObject:executablePath];
NSMutableDictionary *environment = [[[NSDictionary dictionaryWithObjectsAndKeys:frameworkPath, @"DYLD_FRAMEWORK_PATH", @"YES", @"WEBKIT_UNSET_DYLD_FRAMEWORK_PATH",
pathToEnablerLib, @"DYLD_INSERT_LIBRARIES", [[NSBundle mainBundle] executablePath], @"WebKitAppPath", nil] mutableCopy] autorelease];
[environment addEntriesFromDictionary:[[NSProcessInfo processInfo] environment]];
addStartPageToArgumentsIfNeeded(arguments);
while (*++argv)
[arguments addObject:[NSString stringWithUTF8String:*argv]];
myExecve(executablePath, arguments, environment);
char *error = strerror(errno);
NSString *errorMessage = [NSString stringWithFormat:@"Launching Safari at %@ failed with the error '%s' (%d)", [safariBundle bundlePath], error, errno];
displayErrorAndQuit(@"Unable to launch Safari", errorMessage);
[pool release];
return 0;
}