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#include "substitute.h"
#include <objc/runtime.h>
#include <notify.h>
#include <dispatch/dispatch.h>
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
#include <mach-o/dyld.h>
static Class SpringBoard, SBApplicationController;
static bool g_did_activate_safetydance;
@interface _SBApplicationController
- (id)applicationWithBundleIdentifier:(NSString *)identifier;
+ (instancetype)sharedInstanceIfExists;
@end
@interface _SpringBoard
- (void)relaunchSpringBoard;
@end
@interface _SBApplication
- (void)setFlag:(int64_t)flag forActivationSetting:(unsigned)setting;
- (BOOL)launchApplicationWithIdentifier:(NSString *)iden
suspended:(BOOL)suspended;
- (BOOL)isRunning;
- (void)activate;
@end
static bool detect_substrate_safe_mode() {
/* Defer to Substrate's safe mode. On my device, this doesn't seem to be
* strictly necessary, because for whatever reason SafetyDance doesn't get
* launched when MobileSafety is loaded, but let's not rely on that
* quirk... */
for (uint32_t i = 0, count = _dyld_image_count();
i < count; i++) {
const char *name = _dyld_get_image_name(i);
if (name && strstr(name, "MobileSafety"))
return true;
}
return false;
}
void (*old_applicationDidFinishLaunching)(id, SEL, id);
static void my_applicationDidFinishLaunching(id self, SEL sel, id app) {
old_applicationDidFinishLaunching(self, sel, app);
if (detect_substrate_safe_mode()) {
NSLog(@"Deferring to Substrate's safe mode.");
return;
}
id controller = [SBApplicationController sharedInstanceIfExists];
if (!controller) {
NSLog(@"substitute safe mode: sharedInstanceIfExists => nil!");
return;
}
NSString *bundle_id = @"com.ex.SafetyDance";
id sbapp = [controller applicationWithBundleIdentifier:bundle_id];
if (!sbapp) {
NSLog(@"substitute safe mode: no app with bundle ID '%@' - installation messed up?",
bundle_id);
return;
}
[sbapp setFlag:1 forActivationSetting:1]; /* noAnimate */
/* [sbapp setFlag:1 forActivationSetting:5]; */ /* seo */
[self launchApplicationWithIdentifier:bundle_id suspended:NO];
g_did_activate_safetydance = true;
}
BOOL (*old_handleDoubleHeightStatusBarTap)(id, SEL, int64_t);
static BOOL my_handleDoubleHeightStatusBarTap(id self, SEL sel, int64_t number) {
if (g_did_activate_safetydance && number == 202) {
NSString *bundle_id = @"com.ex.SafetyDance";
id controller = [SBApplicationController sharedInstanceIfExists];
id sbapp = [controller applicationWithBundleIdentifier:bundle_id];
if ([sbapp isRunning]) {
NSLog(@"activate!");
[sbapp setFlag:1 forActivationSetting:20]; /* fromBanner */
[self launchApplicationWithIdentifier:bundle_id suspended:NO];
return YES;
}
}
return old_handleDoubleHeightStatusBarTap(self, sel, number);
}
__attribute__((constructor))
static void init() {
#define GET(clsname) \
clsname = objc_getClass(#clsname); \
if (!clsname) { \
NSLog(@"substitute safe mode failed to find %s", #clsname); \
return; \
}
GET(SpringBoard);
GET(SBApplicationController);
int notify_token;
uint32_t notify_status = notify_register_dispatch(
"com.ex.substitute.safemode-restart-springboard-plz",
¬ify_token, dispatch_get_main_queue(), ^(int tok) {
id sb = [UIApplication sharedApplication];
[sb relaunchSpringBoard];
}
);
#define HOOK(cls, sel, selvar) do { \
int ret = substitute_hook_objc_message(cls, @selector(sel), \
my_##selvar, \
&old_##selvar, NULL); \
if (ret) { \
NSLog(@"substitute safe mode '%s' hook failed: %d", #sel, ret); \
return; \
} \
} while(0)
HOOK(SpringBoard, applicationDidFinishLaunching:,
applicationDidFinishLaunching);
HOOK(SpringBoard, handleDoubleHeightStatusBarTap:,
handleDoubleHeightStatusBarTap);
}
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