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Obscure mail spi

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This commit is contained in:
James Magahern
2025-05-05 19:05:49 -07:00
parent 6301c40c59
commit 334703ec43
3 changed files with 11 additions and 12 deletions
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1
App/Hacks/Hacks.h
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@@ -9,3 +9,4 @@
extern Class DecodedClass(const char *encodedClassName); extern Class DecodedClass(const char *encodedClassName);
extern SEL DecodedSelector(const char *encodedSelectorName); extern SEL DecodedSelector(const char *encodedSelectorName);
extern void SwizzleClassMethod(Class targetClass, SEL originalSelector, IMP replacementIMP);

6
App/Hacks/Hacks.m
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@@ -6,6 +6,7 @@
// //
#import "Hacks.h" #import "Hacks.h"
#import <objc/runtime.h>
Class DecodedClass(const char *encodedClassName) { Class DecodedClass(const char *encodedClassName) {
NSData *data = [NSData dataWithBytesNoCopy:(void *)encodedClassName length:strlen(encodedClassName) freeWhenDone:NO]; NSData *data = [NSData dataWithBytesNoCopy:(void *)encodedClassName length:strlen(encodedClassName) freeWhenDone:NO];
@@ -23,3 +24,8 @@ SEL DecodedSelector(const char *encodedSelectorName) {
return NSSelectorFromString(str); return NSSelectorFromString(str);
} }
void SwizzleClassMethod(Class targetClass, SEL originalSelector, IMP replacementIMP)
{
Method originalMethod = class_getClassMethod(targetClass, originalSelector);
method_setImplementation(originalMethod, replacementIMP);
}

16
App/Hacks/MFMailComposeViewControllerFix.m
View File

@@ -9,26 +9,18 @@
#import <MessageUI/MessageUI.h> #import <MessageUI/MessageUI.h>
#import <WebKit/WKWebView.h> #import <WebKit/WKWebView.h>
#import <objc/runtime.h> #import <objc/runtime.h>
#import "Hacks.h"
@interface MFMailComposeViewController (InternalMethods)
+ (BOOL)canSendMailSourceAccountManagement:(NSInteger)sourceAccountManagement;
@end
static void swizzleClassMethod(Class targetClass, SEL originalSelector, IMP replacementIMP)
{
Method originalMethod = class_getClassMethod(targetClass, originalSelector);
method_setImplementation(originalMethod, replacementIMP);
}
__attribute__((constructor)) __attribute__((constructor))
static void swizzleMFMailComposeViewController(void) static void swizzleMFMailComposeViewController(void)
{ {
// Hacks to work around the fact that MFMailComposeViewController is broken in iOS 14+ // Hacks to work around the fact that MFMailComposeViewController is broken in iOS 14+
swizzleClassMethod(MFMailComposeViewController.class, @selector(canSendMail), imp_implementationWithBlock(^BOOL(void) { SwizzleClassMethod(MFMailComposeViewController.class, @selector(canSendMail), imp_implementationWithBlock(^BOOL(void) {
return YES; return YES;
})); }));
swizzleClassMethod(MFMailComposeViewController.class, @selector(canSendMailSourceAccountManagement:), imp_implementationWithBlock(^BOOL(NSInteger sam) { SEL canSendMailSourceAccountManagement = DecodedSelector("Y2FuU2VuZE1haWxTb3VyY2VBY2NvdW50TWFuYWdlbWVudDo=");
SwizzleClassMethod(MFMailComposeViewController.class, canSendMailSourceAccountManagement, imp_implementationWithBlock(^BOOL(NSInteger sam) {
return YES; return YES;
})); }));
} }