AppDuplicator.m

#import "AppDuplicator.h"
#import "thirdparty/SSZipArchive/SSZipArchive.h"
#import "thirdparty/TDUtils.h"

@implementation AppDuplicator

- (NSString *)duplicateAppWithBundleID:(NSString *)appDirectory
                              bundleID:(NSString *)bundleID
                                  name:(NSString *)name {
    uint32_t num = arc4random_uniform(99999) + 1;
    bundleID = [NSString stringWithFormat:@"%@.%u", bundleID, num];

    NSString *tmpPath = [docPath() stringByAppendingPathComponent:bundleID];
    NSString *zipDir = [NSString stringWithFormat:@"%@/ipa", tmpPath];
    NSString *dstAppPath =
        [NSString stringWithFormat:@"%@/Payload/%@", zipDir, [appDirectory lastPathComponent]];
    if (![self copyDirectoryFromPath:appDirectory toPath:dstAppPath]) {
        NSLog(@"Failed to copy Application directory.");
        return nil;
    }

    NSString *infoPlistPath = [dstAppPath stringByAppendingPathComponent:@"Info.plist"];
    NSMutableDictionary *infoPlist =
        [NSMutableDictionary dictionaryWithContentsOfFile:infoPlistPath];
    if (!infoPlist) {
        NSLog(@"Failed to read Info.plist file.");
        return nil;
    }

    infoPlist[@"CFBundleDisplayName"] = name;
    infoPlist[@"CFBundleIdentifier"] = bundleID;

    BOOL success = [infoPlist writeToFile:infoPlistPath atomically:YES];
    if (!success) {
        NSLog(@"Failed to write modified Info.plist file.");
        return nil;
    }

    NSString *IPAFile =
        [NSString stringWithFormat:@"%@/%@_%@_duplicated.ipa", docPath(), bundleID, name];
    @try {
        BOOL success = [SSZipArchive createZipFileAtPath:IPAFile
                                 withContentsOfDirectory:zipDir
                                     keepParentDirectory:NO
                                        compressionLevel:1
                                                password:nil
                                                     AES:NO
                                         progressHandler:nil];
        return success ? IPAFile : nil;
    } @catch (NSException *e) {
        NSLog(@"[appduplicator] BAAAAAAAARF during ZIP operation!!! , %@", e);
        return nil;
    }
}

- (BOOL)copyDirectoryFromPath:(NSString *)srcPath toPath:(NSString *)dstPath {
    NSFileManager *fileManager = [NSFileManager defaultManager];
    BOOL isDirectory;
    if (![fileManager fileExistsAtPath:srcPath isDirectory:&isDirectory] || !isDirectory) {
        return NO;
    }

    [fileManager removeItemAtPath:dstPath error:nil];

    if (![fileManager createDirectoryAtPath:dstPath
                withIntermediateDirectories:YES
                                 attributes:nil
                                      error:nil]) {
        return NO;
    }

    NSArray *contents = [fileManager contentsOfDirectoryAtPath:srcPath error:nil];
    if (!contents) {
        return NO;
    }

    for (NSString *item in contents) {
        NSString *sourceItemPath = [srcPath stringByAppendingPathComponent:item];
        NSString *destinationItemPath = [dstPath stringByAppendingPathComponent:item];
        if (![fileManager copyItemAtPath:sourceItemPath toPath:destinationItemPath error:nil]) {
            return NO;
        }
    }

    return YES;
}

@end