bootstrapTool/bootstrapTool/Classes/InputPackage.m

#import "InputPackage.h"
#import "ErrorReturn.h"
#import "HelperClass.h"

@implementation InputPackage

- (NSString*) description {
    
    NSString *orig = [super description];
    NSMutableDictionary *details = [NSMutableDictionary new];
    NSArray *props = [self properties];
    [props enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        
        NSString *cv = [self valueForKey:obj];
        if (cv){
            details[obj] = cv;
        }
        
    }];
    return [NSString stringWithFormat:@"%@ = %@", orig, details];
    
}

- (NSString *)listfile {
    
    __block NSMutableArray *outFiles = [NSMutableArray new];
    [self.files enumerateObjectsUsingBlock:^(InputPackageFile * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        
        if ([obj.fileType isEqualToString:@"link"]){ //does this need to handle things differently?
            [outFiles addObject:obj.path];
        } else {
            [outFiles addObject:obj.path];
        }
    }];
    return [outFiles componentsJoinedByString:@"\n"];
    
}

- (void)repackageInCurrentDirectoryWithArch:(NSString *)newArch {

    NSString *fakeRoot = [[HelperClass returnForProcess:@"/usr/bin/which fakeroot"] componentsJoinedByString:@"\n"];
    NSString *pwd = [[HelperClass returnForProcess:@"/bin/pwd"] componentsJoinedByString:@"\n"];
    DLog(@"\nProcessing file: %@\n", self.path);
    InputPackage *output = self;
    
    DLog(@"\nFound package: '%@' at version: '%@'...\n", output.packageName, output.version );
    
    NSString *tmpPath = [pwd stringByAppendingPathComponent:output.packageName];
    NSString *debian = [tmpPath stringByAppendingPathComponent:@"DEBIAN"];
    [FM createDirectoryAtPath:tmpPath withIntermediateDirectories:TRUE attributes:nil error:nil];
    DLog(@"\nExtracting package contents for processing...\n");
    [HelperClass returnForProcess:[NSString stringWithFormat:@"/usr/local/bin/dpkg -x %@ %@", self.path, tmpPath]];
    [FM createDirectoryAtPath:debian withIntermediateDirectories:TRUE attributes:nil error:nil];
    DLog(@"\nExtracting DEBIAN files for processing...\n");
    [HelperClass returnForProcess:[NSString stringWithFormat:@"/usr/local/bin/dpkg -e %@ %@", self.path, debian]];
    
    
    if (newArch != nil) {
        
        NSString *controlPath = [debian stringByAppendingPathComponent:@"control"];
        
        NSMutableString *controlFile = [[NSMutableString alloc] initWithContentsOfFile:controlPath encoding:NSUTF8StringEncoding error:nil];
        //@"appletvos-arm64"
        [controlFile replaceOccurrencesOfString:@"iphoneos-arm" withString:newArch options:NSLiteralSearch range:NSMakeRange(0, [controlFile length])];
        
        [controlFile writeToFile:controlPath atomically:TRUE];
    }
    
    //at this point we have the files extracted, time to determine what needs to be changed
    
    NSArray *ignoreFiles = @[@".fauxsu", @".DS_Store"];
    NSArray *forbiddenRoots = @[@"etc", @"var", @"tmp"];
    //__block NSMutableArray *_overwriteArray = [NSMutableArray new];
    [self.files enumerateObjectsUsingBlock:^(InputPackageFile * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        
        if (obj.type == BSPackageFileTypeFile || obj.type == BSPackageFileTypeDirectory){
            
            
            NSString *fullPath = [tmpPath stringByAppendingPathComponent:obj.path];
            
            if ([ignoreFiles containsObject:obj.path.lastPathComponent]){
                
                DLog(@"in ignore file list, purge");
                [FM removeItemAtPath:fullPath error:nil];
                
            }
            
            NSArray *pathComponents = [obj.path pathComponents];
            if ([pathComponents count] > 1)
            {
                
                NSString *rootPath = [pathComponents objectAtIndex:1];
                DLog(@"\n Checking root path: %@ for file %@\n", rootPath, obj.path);
                if ([forbiddenRoots containsObject:rootPath])
                {
                    DLog(@"\n [ERROR] package file: '%@' would overwrite symbolic link at '%@'\n\n", obj.path, rootPath);
                    NSString *privateDir = [tmpPath stringByAppendingPathComponent:@"private"];
                    if (![FM fileExistsAtPath:privateDir]){
                        [FM createDirectoryAtPath:privateDir withIntermediateDirectories:TRUE attributes:nil error:nil];
                        
                    }
                    //take <package_name>/[rootPath] (could be etc, var, tmp) and move to <package_name>/private/[rootPath]
                    NSString *badPath = [tmpPath stringByAppendingPathComponent:rootPath];
                    NSString *newPath = [privateDir stringByAppendingPathComponent:rootPath];
                    DLog(@"\n [INFO] Moving %@ to %@...", badPath, newPath);
                    [FM moveItemAtPath:badPath toPath:newPath error:nil];
                    

                }
            }
            
            
        }
        
        
    }];
    
    
    NSString *depArchiveInfo = [NSString stringWithFormat:@"/usr/local/bin/dpkg -b %@", self.packageName];
    
    if (fakeRoot) {
        
        depArchiveInfo = [NSString stringWithFormat:@"%@ /usr/local/bin/dpkg -b %@", fakeRoot, self.packageName];
        
        
    }
    
    [[HelperClass returnForProcess:depArchiveInfo] componentsJoinedByString:@"\n"];
    
    
    //return er;
}

- (ErrorReturn *)errorReturnForBootstrap:(NSString *)bootstrapPath
{
    NSArray *ignoreFiles = @[@".fauxsu", @".DS_Store"];
    NSArray *forbiddenRoots = @[@"etc", @"var", @"tmp"];
    NSFileManager *man = [NSFileManager defaultManager];
    __block NSInteger returnValue = 0; //0 = good to go 1 = over write warning, 2 = no go
    __block NSMutableArray *_overwriteArray = [NSMutableArray new];
    [self.files enumerateObjectsUsingBlock:^(InputPackageFile * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        
        if ([obj.fileType isEqualToString:@"file"]){
            
            NSString *fullPath = [bootstrapPath stringByAppendingPathComponent:obj.path];
            if ([man fileExistsAtPath:fullPath] && ![ignoreFiles containsObject:obj.basename]){
                
                //DLog(@"[WARNING] overwriting a file that already exists and isn't DS_Store or .fauxsu: %@", fullPath);
                [_overwriteArray addObject:obj.path];
                //*stop = TRUE;//return FALSE;
                returnValue = 1;
            }
            
            NSArray *pathComponents = [obj.path pathComponents];
            if ([pathComponents count] > 1)
            {
                NSString *rootPath = [pathComponents objectAtIndex:1];
                if ([forbiddenRoots containsObject:rootPath])
                {
                    DLog(@"\n [ERROR] package file: '%@' would overwrite symbolic link at '%@'! Exiting!\n\n", obj.path, rootPath);
                    *stop = TRUE;
                    returnValue = 2;
                }
            }
            
            
        }
        
        
    }];
    
    ErrorReturn *er = [ErrorReturn new];
    er.returnStatus = returnValue;
    er.overwriteFiles = _overwriteArray;
    
    return er;
}


@end