0_PFviewer_Dumper

Dump dlst encrypted comic from PFViewer

https://repo.estertion.win/

control

Package: com.estertion.pfviewer-dumper
Name: PFViewer Dumper
Depends: mobilesubstrate
Version: 1
Architecture: iphoneos-arm
Description: Dump dlst encrypted comic from PFViewer
Maintainer: esterTion
Author: esterTion
Section: Tweaks

Makefile

include $(THEOS)/makefiles/common.mk

ARCHS = armv7 arm64 arm64e
TWEAK_NAME = PFViewerDumper
PFViewerDumper_FILES = Tweak.xm
PFViewerDumper_CFLAGS = -fobjc-arc

include $(THEOS_MAKE_PATH)/tweak.mk

after-install::
	install.exec "killall -9 PFviewer"

PFViewerDumper.plist

{ Filter = { Bundles = ( "red.pfv.pfviewer" ); }; }

Tweak.xm

@interface ContentReader
-(unsigned long)size;
-(NSData*)wholeData;
@end

@interface PackageFacade
-(unsigned long)pageCount;
-(ContentReader*)contentReaderOnPage:(int)page error:(id)err;
@end

static PackageFacade* pf_ins;
static bool dumping;
static UIWindow* customWin = NULL;

void show_choice();
void dump_content();
void dump_content_work(UIAlertController* alert);
void dump_content_fin(UIAlertController* alert);

%hook PackageFacade
- (id) init {
	id instance = %orig;
	pf_ins = instance;
	dispatch_async(dispatch_get_main_queue(), ^{
		show_choice();
	});
	return instance;
}
%end


void show_choice() {
	dumping = false;
	if (!customWin) {
		customWin = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
		customWin.windowLevel = 9999;
		customWin.rootViewController = [[UIViewController alloc] init];
	}
	customWin.hidden = NO;
	__block UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"PFViewer Dumper"
										message:@"Dump content?"
										preferredStyle:UIAlertControllerStyleAlert];
	UIAlertAction* action;
	action = [UIAlertAction actionWithTitle:@"No" style:UIAlertActionStyleCancel handler:^(UIAlertAction* action) {
		pf_ins = nil;
		customWin.hidden = YES;
	}];
	[alert addAction:action];
	action = [UIAlertAction actionWithTitle:@"Yes" style:UIAlertActionStyleDefault handler:^(UIAlertAction* action) {
		dumping = true;
		dump_content();
	}];
	[alert addAction:action];
	[customWin.rootViewController presentViewController:alert animated:YES completion:nil];

	dispatch_time_t delay = dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC * 3);
	dispatch_after(delay, dispatch_get_main_queue(), ^(void) {
		if (!dumping) pf_ins = nil;
		if (alert) {
			[alert dismissViewControllerAnimated:YES completion:^() {
				customWin.hidden = YES;
			}];
		}
	});
}

void dump_content() {
	unsigned long pages = [pf_ins pageCount];
	if (pages == 0) {
#ifdef DEBUG
		NSLog(@"[PFViewer Dumper] retrying");
#endif
		dispatch_time_t delay = dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC / 2);
		dispatch_after(delay, dispatch_get_main_queue(), ^(void) {
			dump_content();
		});
		return;
	}

	__block UIAlertController* alert = [UIAlertController alertControllerWithTitle:@"PFViewer Dumper"
										message:@"Dumping"
										preferredStyle:UIAlertControllerStyleAlert];
	[customWin.rootViewController presentViewController:alert animated:YES completion:nil];

	dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
		dump_content_work(alert);
	});
}
void dump_content_work(UIAlertController* alert) {
	unsigned long pages = [pf_ins pageCount];
	int pageDigits = 1;
	{
		unsigned long tmp = pages;
		while (tmp >= 10) {
			tmp /= 10;
			pageDigits++;
		}
	}

	NSFileManager* fm = [NSFileManager defaultManager];
	if ([fm fileExistsAtPath:@"/tmp/pfviewer-dumper"]) {
		[fm removeItemAtPath:@"/tmp/pfviewer-dumper" error:nil];
	}
	NSLog(@"[PFViewer Dumper] start, pages %ld", pages);
	[fm createDirectoryAtPath:@"/tmp/pfviewer-dumper" withIntermediateDirectories:YES attributes:nil error:nil];
	for (int page = 1; page <= pages; page++) {
		NSError* error;
#ifdef DEBUG
		NSLog(@"[PFViewer Dumper] try page %d", page);
#endif
		ContentReader* cr = [pf_ins contentReaderOnPage:page error:error];
		if (!cr) {
#ifdef DEBUG
			if (error) {
				NSLog(@"[PFViewer Dumper] %@", error);
			}
#endif
			continue;
		}
#ifdef DEBUG
		NSLog(@"[PFViewer Dumper] page %d", page);
#endif
		NSData* data = [cr wholeData];
		NSString* path = [NSString stringWithFormat:@"/tmp/pfviewer-dumper/%0*d.jpg", pageDigits, page];
		[fm createFileAtPath:path contents:data attributes:nil];
	}
	__block UIAlertController* alert_b = alert;
	dispatch_time_t delay = dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC);
	dispatch_after(delay, dispatch_get_main_queue(), ^(void) {
		dump_content_fin(alert_b);
	});
}

void dump_content_fin(UIAlertController* alert) {
	[alert dismissViewControllerAnimated:NO completion:NULL];
	alert = [UIAlertController alertControllerWithTitle:@"PFViewer Dumper"
								  message:@"Dumped to /tmp/pfviewer-dumper"
							 preferredStyle:UIAlertControllerStyleAlert];
	UIAlertAction* defaultAction = [UIAlertAction actionWithTitle:[[NSBundle bundleWithIdentifier:@"com.apple.UIKit"] localizedStringForKey:@"Dismiss" value:@"" table:nil]
										  style:UIAlertActionStyleDefault
										handler:^(UIAlertAction * action) { customWin.hidden = YES; }];

	[alert addAction:defaultAction];
	[customWin.rootViewController presentViewController:alert animated:YES completion:nil];
	pf_ins = nil;
	dumping = false;
}