Add ldrestart for safe restart from app jailbreak.

[uikittools.git] / uicache.mm

/* UIKit Tools - command-line utilities for UIKit
 * Copyright (C) 2008-2012  Jay Freeman (saurik)
*/

/* Modified BSD License {{{ */
/*
 *        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. The name of the author may not be used to endorse
 *    or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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 <Foundation/Foundation.h>

#include <notify.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>

#include <objc/runtime.h>

#include "csstore.hpp"

@interface NSMutableArray (Cydia)
- (void) addInfoDictionary:(NSDictionary *)info;
@end

@implementation NSMutableArray (Cydia)

- (void) addInfoDictionary:(NSDictionary *)info {
    [self addObject:info];
}

- (NSArray *) allInfoDictionaries {
    return self;
}

@end

@interface NSMutableDictionary (Cydia)
- (void) addInfoDictionary:(NSDictionary *)info;
@end

@implementation NSMutableDictionary (Cydia)

- (void) addInfoDictionary:(NSDictionary *)info {
    NSString *bundle = [info objectForKey:@"CFBundleIdentifier"];
    [self setObject:info forKey:bundle];
}

- (NSArray *) allInfoDictionaries {
    return [self allValues];
}

@end

@interface LSApplicationWorkspace : NSObject
+ (id) defaultWorkspace;
- (BOOL) registerApplication:(id)application;
- (BOOL) unregisterApplication:(id)application;
- (BOOL) invalidateIconCache:(id)bundle;
- (BOOL) registerApplicationDictionary:(id)application;
- (BOOL) installApplication:(id)application withOptions:(id)options;
- (BOOL) _LSPrivateRebuildApplicationDatabasesForSystemApps:(BOOL)system internal:(BOOL)internal user:(BOOL)user;
@end

int main(int argc, const char *argv[]) {
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    Class $LSApplicationWorkspace(objc_getClass("LSApplicationWorkspace"));
    LSApplicationWorkspace *workspace($LSApplicationWorkspace == nil ? nil : [$LSApplicationWorkspace defaultWorkspace]);

    if (kCFCoreFoundationVersionNumber > 1000) // this API is on iOS 7 but invaliding the icon cache is harder there
    if ([workspace respondsToSelector:@selector(_LSPrivateRebuildApplicationDatabasesForSystemApps:internal:user:)]) {
        if (![workspace _LSPrivateRebuildApplicationDatabasesForSystemApps:YES internal:YES user:NO])
            fprintf(stderr, "failed to rebuild application databases");
        return 0;
    }

    bool respring(false);

    NSString *home(NSHomeDirectory());
    NSString *path([NSString stringWithFormat:@"%@/Library/Caches/com.apple.mobile.installation.plist", home]);

    system("killall -SIGSTOP SpringBoard");
    sleep(1);

    @try {

    DeleteCSStores([home UTF8String]);

    system("killall lsd");

    if ([workspace respondsToSelector:@selector(invalidateIconCache:)])
        while (![workspace invalidateIconCache:nil])
            sleep(1);

    if (NSMutableDictionary *cache = [NSMutableDictionary dictionaryWithContentsOfFile:path]) {
        NSFileManager *manager = [NSFileManager defaultManager];
        NSError *error = nil;

        NSMutableDictionary *bundles([NSMutableDictionary dictionaryWithCapacity:16]);

        id after = [cache objectForKey:@"System"];
        if (after == nil) { error:
            fprintf(stderr, "%s\n", error == nil ? strerror(errno) : [[error localizedDescription] UTF8String]);
            goto cached;
        }

        id before([[after copy] autorelease]);
        [after removeAllObjects];

        NSArray *cached([cache objectForKey:@"InfoPlistCachedKeys"]);

        NSMutableSet *removed([NSMutableSet set]);
        for (NSDictionary *info in [before allInfoDictionaries])
            if (NSString *path = [info objectForKey:@"Path"])
                [removed addObject:path];

        if (NSArray *apps = [manager contentsOfDirectoryAtPath:@"/Applications" error:&error]) {
            for (NSString *app in apps)
                if ([app hasSuffix:@".app"]) {
                    NSString *path = [@"/Applications" stringByAppendingPathComponent:app];
                    NSString *plist = [path stringByAppendingPathComponent:@"Info.plist"];

                    if (NSMutableDictionary *info = [NSMutableDictionary dictionaryWithContentsOfFile:plist]) {
                        if (NSString *identifier = [info objectForKey:@"CFBundleIdentifier"]) {
                            [bundles setObject:path forKey:identifier];
                            [removed removeObject:path];

                            if (cached != nil) {
                                NSMutableDictionary *merged([before objectForKey:identifier]);
                                if (merged == nil)
                                    merged = [NSMutableDictionary dictionary];
                                else
                                    merged = [[merged mutableCopy] autorelease];

                                for (NSString *key in cached)
                                    if (NSObject *value = [info objectForKey:key])
                                        [merged setObject:value forKey:key];
                                    else
                                        [merged removeObjectForKey:key];

                                info = merged;
                            }

                            [info setObject:path forKey:@"Path"];
                            [info setObject:@"System" forKey:@"ApplicationType"];
                            [after addInfoDictionary:info];
                        } else
                            fprintf(stderr, "%s missing CFBundleIdentifier", [app UTF8String]);
                    }
                }
        } else goto error;

        [cache writeToFile:path atomically:YES];

        if (workspace != nil) {
            if ([workspace respondsToSelector:@selector(invalidateIconCache:)]) {
                for (NSString *identifier in bundles)
                    [workspace invalidateIconCache:identifier];
            } else {
                for (NSString *identifier in bundles) {
                    NSString *path([bundles objectForKey:identifier]);
                    [workspace unregisterApplication:[NSURL fileURLWithPath:path]];
                }
            }

            for (NSString *identifier in bundles) {
                NSString *path([bundles objectForKey:identifier]);
                if (kCFCoreFoundationVersionNumber >= 800)
                    [workspace registerApplicationDictionary:[after objectForKey:identifier]];
                else
                    [workspace registerApplication:[NSURL fileURLWithPath:path]];
            }

            for (NSString *path in removed)
                [workspace unregisterApplication:[NSURL fileURLWithPath:path]];
        }
    } else fprintf(stderr, "cannot open cache file. incorrect user?\n");
  cached:

    if (respring || kCFCoreFoundationVersionNumber >= 550.32) {
        unlink([[NSString stringWithFormat:@"%@/Library/Caches/com.apple.springboard-imagecache-icons", home] UTF8String]);
        unlink([[NSString stringWithFormat:@"%@/Library/Caches/com.apple.springboard-imagecache-icons.plist", home] UTF8String]);

        unlink([[NSString stringWithFormat:@"%@/Library/Caches/com.apple.springboard-imagecache-smallicons", home] UTF8String]);
        unlink([[NSString stringWithFormat:@"%@/Library/Caches/com.apple.springboard-imagecache-smallicons.plist", home] UTF8String]);

        system([[NSString stringWithFormat:@"rm -rf %@/Library/Caches/SpringBoardIconCache", home] UTF8String]);
        system([[NSString stringWithFormat:@"rm -rf %@/Library/Caches/SpringBoardIconCache-small", home] UTF8String]);

        system([[NSString stringWithFormat:@"rm -rf %@/Library/Caches/com.apple.IconsCache", home] UTF8String]);
    }

    system("killall installd");

    } @finally {
        system("killall -SIGCONT SpringBoard");
    }

    if (respring)
        system("launchctl stop com.apple.SpringBoard");
    else
        notify_post("com.apple.mobile.application_installed");

    [pool release];

    return 0;
}