Redirect game api call host

0_Arcaea_Api_Switcher

shit title place holder

README.md

Tweak to modify game api server host, to free my hand from Clutch dump and manual "sed"ing every update.

deb package: https://repo.estertion.win/debs/com.estertion.arcapi_0.0.1_iphoneos-arm.deb
or repo https://repo.estertion.win/

ArcApiServer.plist

{ Filter = { Bundles = ( "moe.low.arc", "com.zzk.cgssguide" ); }; }

control

Package: com.estertion.arcapi
Name: ArcApiServer
Depends: mobilesubstrate
Version: 0.0.1
Architecture: iphoneos-arm
Description: An awesome MobileSubstrate tweak!
Maintainer: esterTion
Author: esterTion
Section: Tweaks

Makefile

include $(THEOS)/makefiles/common.mk

TWEAK_NAME = ArcApiServer
ArcApiServer_ARCHS = arm64
ArcApiServer_FILES = Tweak.xm

include $(THEOS_MAKE_PATH)/tweak.mk

Tweak.xm

/*
#include <mach-o/dyld.h>
#include <mach-o/getsect.h>
*/
#import <substrate.h>

%hook NSMutableURLRequest
-(NSMutableURLRequest*)initWithURL:(NSURL *)URL 
                       cachePolicy:(NSURLRequestCachePolicy)cachePolicy 
                   timeoutInterval:(NSTimeInterval)timeoutInterval
{
	if ([[URL host] isEqualToString: @"arcapi.lowiro.com"]) {
		NSURLComponents *components = [NSURLComponents componentsWithURL:URL resolvingAgainstBaseURL:YES];
		components.host = @"arc.estertion.win";
		URL = components.URL;
#ifdef DEBUG
		NSLog(@"[ArcApiServer] redirected to %@", URL);
#endif
		return %orig(URL, cachePolicy, timeoutInterval);
	} else if ([[URL host] isEqualToString: @"truecolor.kirara.ca"]) {
		// DereGuide image server fix, because i'm iOS 9
		NSURLComponents *components = [NSURLComponents componentsWithURL:URL resolvingAgainstBaseURL:YES];
		components.host = @"hidamarirhodonite.kirara.ca";
		URL = components.URL;
#ifdef DEBUG
		NSLog(@"[ArcApiServer] redirected to %@", URL);
#endif
		return %orig(URL, cachePolicy, timeoutInterval);
	} else {
		return %orig;
	}
}
%end
/*
  // attempt to hook strcpy, which seems to be called when game initializing, but failed

static const char* originalServer = "https://arcapi.lowiro.com/4/";
static const char* modifiedServer = "https://arc.estertion.win/4/";
%hookf(char *, strcpy, char * destination, const char * source) {
	if (strlen(source) == 28)
	NSLog(@"[ArcApiServer] %s", source);
	if (strcmp(source, originalServer) == 0) {
		NSLog(@"[ArcApiServer] api endpoint hijacked");
		return %orig(destination, modifiedServer);
	}
	return %orig;
}*/
/*
  // attempt to modify executable binary in memory, but failed because of execution protection (memory address can't be both executable and writable)

%ctor {
	const char* imgName = _dyld_get_image_name(0);
	NSLog(@"[ArcApiServer] Image #%d: %s", 0, imgName);
	const struct mach_header_64 *mhp = (const struct mach_header_64*)_dyld_get_image_header(0);
	uint64_t sectionSize = 0;
	char *textSectionPtr = getsectdatafromheader_64(mhp, "__TEXT", "__cstring", &sectionSize);
	NSLog(@"[ArcApiServer] __TEXT __cstring %p data size: %llu", textSectionPtr, sectionSize);
	textSectionPtr++;

	const char* originalServer = "https://arcapi.lowiro.com/4/";
	const char* modifiedServer = "https://arc.estertion.win/4/";
	while (sectionSize > 0) {
		uint32_t len = strlen(textSectionPtr);
		//NSLog(@"[ArcApiServer] string size: %u", len);
		if (len == 28 && strcmp(textSectionPtr, originalServer) == 0) {
			NSLog(@"[ArcApiServer] Found server string at %p, %s", textSectionPtr, textSectionPtr);
			@try{
				for (uint32_t i=0; i < 28; i++) {
					*(textSectionPtr + i) = *(modifiedServer + i);
				}
			} @catch (NSException* e) {
				NSLog(@"[ArcApiServer] %@", e);
			}
			break;
		} else {
			textSectionPtr += len + 1;
			sectionSize -= len + 1;
		}
	}
}*/