├── .gitignore ├── CMakeLists.txt ├── LICENSE ├── README.md ├── build.sh ├── inject.sh └── src ├── drm.h ├── drm.m ├── external.h ├── main.m └── util.h /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## User settings 6 | xcuserdata/ 7 | 8 | ## compatibility with Xcode 8 and earlier (ignoring not required starting Xcode 9) 9 | *.xcscmblueprint 10 | *.xccheckout 11 | 12 | ## compatibility with Xcode 3 and earlier (ignoring not required starting Xcode 4) 13 | build/ 14 | DerivedData/ 15 | *.moved-aside 16 | *.pbxuser 17 | !default.pbxuser 18 | *.mode1v3 19 | !default.mode1v3 20 | *.mode2v3 21 | !default.mode2v3 22 | *.perspectivev3 23 | !default.perspectivev3 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | 28 | ## App packaging 29 | *.ipa 30 | *.dSYM.zip 31 | *.dSYM 32 | 33 | # CocoaPods 34 | # 35 | # We recommend against adding the Pods directory to your .gitignore. However 36 | # you should judge for yourself, the pros and cons are mentioned at: 37 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 38 | # 39 | # Pods/ 40 | # 41 | # Add this line if you want to avoid checking in source code from the Xcode workspace 42 | # *.xcworkspace 43 | 44 | # Carthage 45 | # 46 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 47 | # Carthage/Checkouts 48 | 49 | Carthage/Build/ 50 | 51 | # fastlane 52 | # 53 | # It is recommended to not store the screenshots in the git repo. 54 | # Instead, use fastlane to re-generate the screenshots whenever they are needed. 55 | # For more information about the recommended setup visit: 56 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 57 | 58 | fastlane/report.xml 59 | fastlane/Preview.html 60 | fastlane/screenshots/**/*.png 61 | fastlane/test_output 62 | 63 | # Code Injection 64 | # 65 | # After new code Injection tools there's a generated folder /iOSInjectionProject 66 | # https://github.com/johnno1962/injectionforxcode 67 | 68 | iOSInjectionProject/ 69 | 70 | .DS_Store 71 | 72 | decrypted_books/ 73 | -------------------------------------------------------------------------------- /CMakeLists.txt: -------------------------------------------------------------------------------- 1 | cmake_minimum_required(VERSION 3.27) 2 | project(RemoveBooksDRM) 3 | 4 | set(CMAKE_CXX_STANDARD 20) 5 | include(FetchContent) 6 | 7 | if ("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "arm64") 8 | message("Target Architecture: arm64e") 9 | 10 | # Command to get boot-args 11 | execute_process( 12 | COMMAND nvram boot-args 13 | OUTPUT_VARIABLE NVRAM_OUTPUT 14 | OUTPUT_STRIP_TRAILING_WHITESPACE 15 | ) 16 | # Check if arm64e_preview_abi is enabled 17 | if("${NVRAM_OUTPUT}" MATCHES ".*arm64e_preview_abi.*") 18 | message(STATUS "✅ arm64e preview ABI is enabled.") 19 | else() 20 | message(FATAL_ERROR "❌ arm64e preview ABI is not enabled. Enable it with: sudo nvram boot-args=-arm64e_preview_abi and then restart your Mac.") 21 | endif() 22 | 23 | set(CMAKE_OSX_ARCHITECTURES "x86_64;arm64e") 24 | elseif ("${CMAKE_HOST_SYSTEM_PROCESSOR}" STREQUAL "x86_64") 25 | message("Target Architecture: x86_64") 26 | else () 27 | message(FATAL_ERROR "This processor is not supported.") 28 | return() 29 | endif () 30 | 31 | 32 | add_library(antidote SHARED 33 | src/main.m 34 | src/drm.h 35 | src/drm.m 36 | src/util.h 37 | ) 38 | 39 | target_link_libraries(antidote PRIVATE "-framework Foundation -framework CoreFoundation -framework Cocoa -framework Security") 40 | set_target_properties(antidote PROPERTIES 41 | OUTPUT_NAME "antidote" 42 | PREFIX "" 43 | SUFFIX ".dylib" 44 | ) 45 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU AFFERO GENERAL PUBLIC LICENSE 2 | Version 3, 19 November 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU Affero General Public License is a free, copyleft license for 11 | software and other kinds of works, specifically designed to ensure 12 | cooperation with the community in the case of network server software. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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If the Program does not specify a version number of the 574 | GNU Affero General Public License, you may choose any version ever published 575 | by the Free Software Foundation. 576 | 577 | If the Program specifies that a proxy can decide which future 578 | versions of the GNU Affero General Public License can be used, that proxy's 579 | public statement of acceptance of a version permanently authorizes you 580 | to choose that version for the Program. 581 | 582 | Later license versions may give you additional or different 583 | permissions. However, no additional obligations are imposed on any 584 | author or copyright holder as a result of your choosing to follow a 585 | later version. 586 | 587 | 15. Disclaimer of Warranty. 588 | 589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 590 | APPLICABLE LAW. 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It is safest 628 | to attach them to the start of each source file to most effectively 629 | state the exclusion of warranty; and each file should have at least 630 | the "copyright" line and a pointer to where the full notice is found. 631 | 632 | 633 | Copyright (C) 634 | 635 | This program is free software: you can redistribute it and/or modify 636 | it under the terms of the GNU Affero General Public License as published 637 | by the Free Software Foundation, either version 3 of the License, or 638 | (at your option) any later version. 639 | 640 | This program is distributed in the hope that it will be useful, 641 | but WITHOUT ANY WARRANTY; without even the implied warranty of 642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 643 | GNU Affero General Public License for more details. 644 | 645 | You should have received a copy of the GNU Affero General Public License 646 | along with this program. If not, see . 647 | 648 | Also add information on how to contact you by electronic and paper mail. 649 | 650 | If your software can interact with users remotely through a computer 651 | network, you should also make sure that it provides a way for users to 652 | get its source. For example, if your program is a web application, its 653 | interface could display a "Source" link that leads users to an archive 654 | of the code. There are many ways you could offer source, and different 655 | solutions will be better for different programs; see section 13 for the 656 | specific requirements. 657 | 658 | You should also get your employer (if you work as a programmer) or school, 659 | if any, to sign a "copyright disclaimer" for the program, if necessary. 660 | For more information on this, and how to apply and follow the GNU AGPL, see 661 | . 662 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # RemoveBooksDRM 2 | Apple Books DRM Removal 3 | 4 | Currently supports DRM removal of EPUB assets. However, **iBooks assets will be supported in a future release.** 5 | 6 | > [!NOTE] 7 | > 8 | > You need: 9 | > - A computer running macOS. 10 | > 11 | > You must: 12 | > - Disable SIP 13 | > - Disable library validation 14 | > - Enable the arm64e ABI boot flag (I think this is only if you are building the project, but I'm not sure) 15 | > 16 | > The CMake build script will check for the arm64e ABI on applicable systems. 17 | > 18 | > The `inject.sh` script will also provide instructions if any necessary conditions have not been met. 19 | 20 | ## How to Build 21 | - Run `build.sh` 22 | 23 | ## How to Use 24 | - Run `inject.sh` 25 | - Apple Books should launch with an alert requesting access to the book container. 26 | If this is not the case, then the payload is likely not injecting properly. 27 | - Further instructions are available in the menu item: `"RemoveBooksDRM" > "Instructions"` 28 | 29 | ## Legal Use Disclaimer 30 | 31 | This software is intended for lawful purposes only, specifically to enable eBook compatibility between different devices. 32 | It is not designed for, nor should it be used for, any form of copyright infringement or illegal activity. 33 | 34 | **ReverseApple claims no responsibility for any damage caused by using this software.** 35 | -------------------------------------------------------------------------------- /build.sh: -------------------------------------------------------------------------------- 1 | #!/bin/zsh 2 | cmake . 3 | cmake --build . --config Release 4 | -------------------------------------------------------------------------------- /inject.sh: -------------------------------------------------------------------------------- 1 | #!/bin/zsh 2 | 3 | if [[ $(csrutil status) != *"disabled." ]]; then 4 | echo "SIP must be disabled." 5 | echo "Consult this documentation for help doing this: https://developer.apple.com/documentation/security/disabling_and_enabling_system_integrity_protection#3599244" 6 | exit 1 7 | fi 8 | 9 | if [[ $(defaults read /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation) != "1" ]]; then 10 | echo "Library validation must be disabled." 11 | echo "Disable it with: sudo defaults write /Library/Preferences/com.apple.security.libraryvalidation.plist DisableLibraryValidation -bool true" 12 | exit 1 13 | fi 14 | 15 | function injectDylib { 16 | SCRIPT_DIR=$(cd "$(dirname "$0")"; pwd) 17 | DYLD_INSERT_LIBRARIES="${SCRIPT_DIR}/antidote.dylib" /System/Applications/Books.app/Contents/MacOS/Books 18 | } 19 | 20 | injectDylib 21 | -------------------------------------------------------------------------------- /src/drm.h: -------------------------------------------------------------------------------- 1 | 2 | #import 3 | 4 | typedef NS_ENUM(NSInteger, BookFormat) { 5 | BookFormatEPUB, 6 | BookFormatIBooks 7 | }; 8 | 9 | 10 | @interface BookExporter : NSObject 11 | 12 | @property(nonatomic, strong, readonly) NSString *bookPackagePath; 13 | @property(nonatomic, assign, readonly) BookFormat format; 14 | 15 | + (instancetype)exporterWithBookPath:(NSString *)path; 16 | - (BOOL)isDRMProtected; 17 | - (BOOL)exportToPath:(NSString *)path; 18 | 19 | @end 20 | -------------------------------------------------------------------------------- /src/drm.m: -------------------------------------------------------------------------------- 1 | 2 | #import "drm.h" 3 | #import "external.h" 4 | 5 | #import 6 | #import 7 | 8 | // These imports only exist to satisfy the shockingly bad Objective-C linter in CLion; 9 | // they are otherwise unnecessary. 10 | #import 11 | #import 12 | 13 | 14 | NSData *parse_sinf(NSString *path) { 15 | // Read sinf.xml 16 | NSData *sinf_file = [NSData dataWithContentsOfFile:path]; 17 | 18 | NSLog(@"SINF FILE: %@", sinf_file); 19 | 20 | if (sinf_file == nil) { 21 | printf("Failed to read sinf.xml\n"); 22 | return nil; 23 | } 24 | 25 | // Find ... 26 | NSRange start = [sinf_file rangeOfData:[@"" dataUsingEncoding:NSUTF8StringEncoding] options:0 range:NSMakeRange( 27 | 0, [sinf_file length])]; 28 | 29 | NSRange end = [sinf_file rangeOfData:[@"" dataUsingEncoding:NSUTF8StringEncoding] options:0 range:NSMakeRange( 30 | start.location, [sinf_file length] - start.location)]; 31 | 32 | if (start.location == NSNotFound || end.location == NSNotFound) { 33 | printf("Failed to find ...\n"); 34 | return nil; 35 | } 36 | NSData *sdata = [NSData dataWithBytes:[sinf_file bytes] + start.location + start.length length:end.location - 37 | start.location - 38 | start.length]; 39 | if (sdata == nil) { 40 | printf("Failed to extract base64-encoded data\n"); 41 | return nil; 42 | } 43 | 44 | // Decode base64 45 | NSData *sdata_decoded = [[NSData alloc] initWithBase64EncodedData:sdata options:0]; 46 | if (sdata_decoded == nil) { 47 | printf("Failed to decode base64\n"); 48 | return nil; 49 | } 50 | 51 | return sdata_decoded; 52 | } 53 | 54 | NSData *try_decrypt(NSData *sinfData, NSString *path) { 55 | if (sinfData == nil) { 56 | printf("Failed to get sdata_decoded\n"); 57 | return nil; 58 | } 59 | 60 | bool refetch = false; 61 | NSError *error = nil; 62 | 63 | Class cls = objc_getClass("ft9cupR7u6OrU4m1pyhB"); 64 | 65 | // Call the DRM symbol... 66 | NSData *result = [cls pK0gFZ9QOdm17E9p9cpP:path sinfData:sinfData refetch:&refetch error:&error]; 67 | if (result == nil) { 68 | printf("Failed to decrypt: %s\n", [[error localizedDescription] UTF8String]); 69 | return nil; 70 | } 71 | NSLog(@"Decrypted: %@", result); 72 | 73 | return result; 74 | } 75 | 76 | NSError* make_base_dir(NSString *outputPath) { 77 | NSFileManager *fm = [NSFileManager defaultManager]; 78 | 79 | NSError *err = nil; 80 | [fm createDirectoryAtPath:outputPath withIntermediateDirectories:NO attributes:nil error:&err]; 81 | 82 | if (err) { 83 | NSLog(@"Error creating output EPUB directory %@, %@", outputPath, err); 84 | return err; 85 | } 86 | 87 | return nil; 88 | } 89 | 90 | BOOL write_file(NSString *filePath, NSData *content) { 91 | NSFileManager *fm = [NSFileManager defaultManager]; 92 | NSString *dirPath = [filePath stringByDeletingLastPathComponent]; 93 | 94 | // Log the paths being used 95 | NSLog(@"File path: %@", filePath); 96 | NSLog(@"Directory path: %@", dirPath); 97 | 98 | // Create the directory if it does not exist 99 | if (![fm fileExistsAtPath:dirPath]) { 100 | NSLog(@"Creating directory: %@", dirPath); 101 | 102 | NSError *error = nil; 103 | [fm createDirectoryAtPath:dirPath 104 | withIntermediateDirectories:YES 105 | attributes:nil 106 | error:&error]; 107 | 108 | if (error) { 109 | NSLog(@"Error creating directory: %@", error); 110 | NSLog(@"Error details: %@", [error localizedDescription]); 111 | return NO; 112 | } 113 | } 114 | 115 | // Write the file 116 | NSError *error = nil; 117 | BOOL success = [content writeToFile:filePath options:NSDataWritingAtomic error:&error]; 118 | 119 | if (error) { 120 | NSLog(@"Error writing file at path %@: %@", filePath, error); 121 | NSLog(@"Error details: %@", [error localizedDescription]); 122 | return NO; 123 | } 124 | 125 | if (!success) { 126 | NSLog(@"Failed to write the file at path %@", filePath); 127 | return NO; 128 | } 129 | 130 | NSLog(@"File written successfully to %@", filePath); 131 | return YES; 132 | } 133 | 134 | 135 | NSArray *match_files(NSString *directoryPath, NSString *globPattern) { 136 | NSFileManager *fm = [NSFileManager defaultManager]; 137 | 138 | NSArray *files = [fm contentsOfDirectoryAtPath:directoryPath error:nil]; 139 | if (!files) { 140 | NSLog(@"Failed to get files in directory %@", directoryPath); 141 | return @[]; 142 | } 143 | 144 | NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF LIKE %@", globPattern]; 145 | NSArray *matchingFiles = [files filteredArrayUsingPredicate:predicate]; 146 | 147 | return matchingFiles; 148 | } 149 | 150 | 151 | @interface BookExporter () 152 | 153 | @property(nonatomic, strong, readwrite) NSString *bookPackagePath; 154 | @property(nonatomic, assign, readwrite) BookFormat format; 155 | 156 | @property(nonatomic, strong) NSArray *omitFromExport; 157 | @property(nonatomic, strong) NSArray *omitFromDecryption; 158 | 159 | // internal stuff... 160 | @property(nonatomic, strong) NSMutableArray *internalFiles; 161 | @property(nonatomic, strong) NSDictionary *metadata; 162 | @property(nonatomic, strong) NSData *sinfData; 163 | @end 164 | 165 | @implementation BookExporter 166 | 167 | + (instancetype)exporterWithBookPath:(NSString *)path { 168 | BookExporter *instance = [[BookExporter alloc] init]; 169 | 170 | if (instance) { 171 | instance.omitFromExport = @[ 172 | @"iTunesMetadata.plist", 173 | @"iTunesMetadata-original.plist", 174 | @"iTunesArtwork", 175 | @"META-INF/encryption.xml", 176 | @"META-INF/signatures.xml", 177 | @"META-INF/sinf.xml", 178 | ]; 179 | 180 | instance.omitFromDecryption = @[ 181 | @"mimetype", 182 | @"META-INF/container.xml" 183 | ]; 184 | 185 | instance.bookPackagePath = path; 186 | instance.internalFiles = [NSMutableArray array]; 187 | 188 | [instance loadBook]; 189 | } 190 | 191 | return instance; 192 | } 193 | 194 | - (void)loadBook { 195 | 196 | // analyze the format 197 | NSString *extension = [self.bookPackagePath pathExtension]; 198 | if ([extension isEqualToString:@"ibooks"]) 199 | self.format = BookFormatIBooks; 200 | else if ([extension isEqualToString:@"epub"]) 201 | self.format = BookFormatEPUB; 202 | else 203 | // todo: make this yield an error somehow. 204 | return; 205 | 206 | NSFileManager *fileManager = [NSFileManager defaultManager]; 207 | NSDirectoryEnumerator *dirEnum = [fileManager enumeratorAtPath:self.bookPackagePath]; 208 | 209 | // Traverse the book package, picking up any important data we find along the way. 210 | NSString *file; 211 | while (file = [dirEnum nextObject]) { 212 | NSString *absoluteFilePath = [NSString stringWithFormat:@"%@/%@", self.bookPackagePath, file]; 213 | 214 | // if it's a directory, skip it. 215 | BOOL isDirectory; 216 | [fileManager fileExistsAtPath:absoluteFilePath isDirectory:&isDirectory]; 217 | if (isDirectory) 218 | continue; 219 | 220 | if ([[file stringByDeletingPathExtension] isEqualToString:@"iTunesMetadata"]) { 221 | self.metadata = [NSDictionary dictionaryWithContentsOfFile:absoluteFilePath]; 222 | }else if ([file isEqualToString:@"META-INF/sinf.xml"]) { 223 | self.sinfData = parse_sinf(absoluteFilePath); 224 | } 225 | 226 | NSLog(@"Adding file: %@", file); 227 | [self.internalFiles addObject:file]; 228 | } 229 | } 230 | 231 | - (BOOL)isDRMProtected { 232 | if (self.metadata != nil) { 233 | NSString *assetFlavor = self.metadata[@"asset-info"][@"flavor"]; 234 | if (assetFlavor != nil) { 235 | return [assetFlavor isEqualToString:@"pub"] && self.sinfData != nil; 236 | } 237 | } 238 | 239 | return false; 240 | } 241 | 242 | - (NSString*)title { 243 | if (self.metadata != nil) { 244 | return self.metadata[@"itemName"]; 245 | } 246 | 247 | return nil; 248 | } 249 | 250 | - (BOOL)createEPUBForTmp:(NSString*)tmpDir { 251 | NSString *outputPath = [NSString stringWithFormat:@"../%@.epub", [self title]]; 252 | NSMutableArray *arguments = [@[@"-r", outputPath, @"."] mutableCopy]; 253 | 254 | NSTask *task = [[NSTask alloc] init]; 255 | task.launchPath = @"/usr/bin/zip"; 256 | task.arguments = arguments; 257 | task.currentDirectoryURL = [NSURL fileURLWithPath:tmpDir]; 258 | 259 | [task launch]; 260 | [task waitUntilExit]; 261 | 262 | return task.terminationStatus == 0; 263 | } 264 | 265 | - (BOOL)exportEPUBToPath:(NSString*)exportDirectory { 266 | NSArray *doNotDecryptExtensions = @[@"ncx", @"opf"]; 267 | BOOL hasDRM = [self isDRMProtected]; 268 | 269 | NSLog(@"%@", self.internalFiles); 270 | NSString *tmpPath = [NSString stringWithFormat:@"%@/tmp_%@", exportDirectory, [self title]]; 271 | 272 | NSError* error = make_base_dir(tmpPath); 273 | if (error != nil) { 274 | return NO; 275 | } 276 | 277 | NSMutableArray *outPaths = [NSMutableArray array]; 278 | 279 | for (NSString *file in self.internalFiles) { 280 | NSLog(@"PROCESSING: %@", file); 281 | 282 | NSString *absoluteSrcPath = [NSString stringWithFormat:@"%@/%@", self.bookPackagePath, file]; 283 | 284 | if ([_omitFromExport containsObject:file]) 285 | continue; 286 | 287 | NSData *content; 288 | if (hasDRM && ![_omitFromDecryption containsObject:file] && ![doNotDecryptExtensions containsObject:[file pathExtension]]) { 289 | content = try_decrypt(self.sinfData, absoluteSrcPath); 290 | } else { 291 | content = [NSData dataWithContentsOfFile:absoluteSrcPath]; 292 | } 293 | 294 | NSString *fileOutPath = [NSString stringWithFormat:@"%@/%@", tmpPath, file]; 295 | write_file(fileOutPath, content); 296 | 297 | [outPaths addObject:fileOutPath]; 298 | } 299 | 300 | NSLog(@"OUTPATHS: %@", outPaths); 301 | 302 | BOOL success = [self createEPUBForTmp:tmpPath]; 303 | if (success) 304 | NSLog(@"Created zip successfully!"); 305 | else 306 | NSLog(@"Failed to create zip"); 307 | 308 | NSLog(@"Doing cleanup..."); 309 | 310 | [[NSFileManager defaultManager] removeItemAtPath:tmpPath error:nil]; 311 | 312 | return success; 313 | } 314 | 315 | - (BOOL)exportIBooksToPath:(NSString*)path { 316 | BOOL hasDRM = [self isDRMProtected]; 317 | 318 | for (NSString *file in self.internalFiles) { 319 | NSString *absolutePath = [NSString stringWithFormat:@"%@/%@", self.bookPackagePath, file]; 320 | } 321 | return FALSE; 322 | } 323 | 324 | - (BOOL)exportToPath:(NSString *)path { 325 | 326 | if (self.format == BookFormatEPUB) { 327 | return [self exportEPUBToPath:path]; 328 | } else { 329 | return [self exportIBooksToPath:path]; 330 | } 331 | } 332 | 333 | @end 334 | 335 | 336 | 337 | 338 | -------------------------------------------------------------------------------- /src/external.h: -------------------------------------------------------------------------------- 1 | #import 2 | 3 | struct FairPlayHWInfo_ { 4 | unsigned int field_1; 5 | unsigned char field_2[20]; 6 | }; 7 | 8 | struct tpZFqotcPt { 9 | void ***field_1; 10 | unsigned int field_2; 11 | struct FairPlayHWInfo_ field_3; 12 | id field_4; 13 | id field_5; 14 | struct __CFData * field_6; 15 | dispatch_queue_t *field_7; 16 | }; 17 | 18 | @interface ft9cupR7u6OrU4m1pyhB : NSObject 19 | + (unsigned long long)dataChunkSize; 20 | + (id)pK0gFZ9QOdm17E9p9cpP:(id)v1 sinfData:(id)v2 refetch:(bool *)v3 error:(id *)v4; 21 | 22 | /// 23 | /// \param v1 (NSPathStore2) 24 | /// \param v2 25 | /// \param v3 (__NSCFData) 26 | /// \param v4 27 | /// \param v5 28 | /// \return 29 | + (id)pK0gFZ9QOdm17E9p9cpP:(NSString*)v1 contextManager:(struct tpZFqotcPt *)v2 sinfData:(id)v3 refetch:(bool *)v4 error:(id *)v5; 30 | + (id)y7OOpRt0C6jKsWDCTuNz:(id)v1; 31 | + (void)_8g0aKpBRl5gIBvODdOy7:(id)v1 completion:(void (^ /* unknown block signature */)(void))v2; 32 | + (void)Xj3eVHDeBoTD6fVn6fY8:(id)v1 completion:(void (^ /* unknown block signature */)(void))v2; 33 | + (void)FVnIWgVXBigm3P6nj4U9:(id)v1; 34 | + (id)MNeITI0WyvXBxnLLXXWr:(id)v1; 35 | /// This just returns zero. 36 | /// It's literally `mov x0, 0x0` 37 | + (unsigned long long)d32lDu5WFQOV5kTab38V; 38 | + (struct tpZFqotcPt *)contextManager; 39 | + (void)prewarm; 40 | + (void)prewarmSync; 41 | @end -------------------------------------------------------------------------------- /src/main.m: -------------------------------------------------------------------------------- 1 | 2 | #import 3 | #import 4 | 5 | #import "util.h" 6 | #import "drm.h" 7 | 8 | #define MENUBAR_TITLE "RemoveBooksDRM" 9 | #define VERSION "2.0.1" 10 | 11 | 12 | @interface RBDRMDelegate : NSObject 13 | + (void)build; 14 | 15 | + (RBDRMDelegate *)sharedInstance; 16 | 17 | - (void)handleEPUBBookOpenNotification:(NSNotification *)notification; 18 | 19 | - (void)handleIBooksAssetOpenNotification:(NSNotification *)notification; 20 | 21 | - (void)instructionsClicked:(id)sender; 22 | 23 | - (void)promptDecryptWithTitle:(NSString *)bookTitle author:(NSString *)bookAuthor assetID:(NSString *)bookAssetID path:(NSString *)bookAssetPath; 24 | 25 | - (void)aboutItemClicked:(id)sender; 26 | 27 | - (void)decryptAssetWithPath:(NSString *)assetID savePath:(NSString *)path withCompletion:(void (^)(BOOL))block; 28 | 29 | @property(strong, nonatomic) NSData *bkaContainerPermit; 30 | @property(strong, nonatomic) NSData *decryptLocationPermit; 31 | @end 32 | 33 | @implementation RBDRMDelegate 34 | 35 | + (void)build { 36 | RBDRMDelegate *instance = [RBDRMDelegate sharedInstance]; 37 | 38 | NSApplication *app = [NSApplication sharedApplication]; 39 | NSMenu *mainMenu = [app mainMenu]; 40 | 41 | if ([mainMenu itemWithTitle:@MENUBAR_TITLE] != nil) 42 | return; 43 | 44 | NSMenuItem *rootItem = [[NSMenuItem alloc] initWithTitle:@MENUBAR_TITLE action:nil keyEquivalent:@""]; 45 | [mainMenu addItem:rootItem]; 46 | 47 | NSMenu *submenu = [[NSMenu alloc] initWithTitle:@MENUBAR_TITLE]; 48 | [rootItem setSubmenu:submenu]; 49 | 50 | NSMenuItem *decryptItem = [[NSMenuItem alloc] initWithTitle:@"Instructions" 51 | action:@selector(instructionsClicked:) 52 | keyEquivalent:@""]; 53 | 54 | NSMenuItem *aboutItem = [[NSMenuItem alloc] initWithTitle:@"About" 55 | action:@selector(aboutItemClicked:) 56 | keyEquivalent:@""]; 57 | 58 | [decryptItem setTarget:instance]; 59 | [aboutItem setTarget:instance]; 60 | 61 | [submenu addItem:decryptItem]; 62 | [submenu addItem:aboutItem]; 63 | 64 | } 65 | 66 | + (RBDRMDelegate *)sharedInstance { 67 | static RBDRMDelegate *sharedInstance = nil; 68 | static dispatch_once_t onceToken; 69 | 70 | dispatch_once(&onceToken, ^{ 71 | sharedInstance = [[self alloc] init]; 72 | 73 | // Subscribe notification to handler... 74 | NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter]; 75 | [notificationCenter addObserver:sharedInstance 76 | selector:@selector(handleEPUBBookOpenNotification:) 77 | name:@"BKBookReaderContentLayoutFinished" 78 | object:nil]; 79 | 80 | [notificationCenter addObserver:sharedInstance 81 | selector:@selector(handleIBooksAssetOpenNotification:) 82 | name:@"kTHPPT_bookControllerChange" 83 | object:nil]; 84 | 85 | [sharedInstance checkBKAgentDBPermission]; 86 | 87 | }); 88 | 89 | return sharedInstance; 90 | } 91 | 92 | - (void)checkBKAgentDBPermission { 93 | NSString *BKA_PATH = [@"~/Library/Containers/com.apple.BKAgentService/Data/Documents/iBooks/Books" stringByExpandingTildeInPath]; 94 | 95 | NSFileManager *fileManager = [NSFileManager defaultManager]; 96 | if (self.bkaContainerPermit != nil) { 97 | return; 98 | } 99 | 100 | NSAlert *alert = [[NSAlert alloc] init]; 101 | [alert setInformativeText:@"RemoveBooksDRM needs permission to read from the local book storage container.\n\n" 102 | "Please click OK when the folder selection prompt appears."]; 103 | [alert runModal]; 104 | 105 | NSOpenPanel *openPanel = [NSOpenPanel openPanel]; 106 | [openPanel setCanChooseFiles:NO]; 107 | [openPanel setCanChooseDirectories:YES]; 108 | [openPanel setAllowsMultipleSelection:NO]; 109 | [openPanel setDirectoryURL:[NSURL fileURLWithPath:BKA_PATH]]; 110 | 111 | [openPanel setPrompt:@"OK"]; 112 | [openPanel setMessage:@"Please click OK. Do not change the directory."]; 113 | 114 | [openPanel beginSheetModalForWindow:nil completionHandler:^(NSModalResponse result) { 115 | if (result == NSModalResponseOK) { 116 | NSURL *selectedFolder = [openPanel URL]; 117 | NSLog(@"Selected folder: %@", [selectedFolder path]); 118 | 119 | NSError *error; 120 | NSArray *directoryContents = [fileManager 121 | contentsOfDirectoryAtPath:[selectedFolder path] 122 | error:&error]; 123 | 124 | if (error == nil) { 125 | NSLog(@"Error reading directory: %@", error.localizedDescription); 126 | } else { 127 | // Store the permit for the folder. 128 | NSData *permit = [selectedFolder bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope 129 | includingResourceValuesForKeys:nil 130 | relativeToURL:nil 131 | error:&error]; 132 | 133 | if (permit) { 134 | NSAlert *successModal = [[NSAlert alloc] init]; 135 | [successModal setMessageText:@"Success"]; 136 | [successModal setInformativeText:@"Permission acquired successfully."]; 137 | [successModal runModal]; 138 | 139 | self.bkaContainerPermit = permit; 140 | NSLog(@"%@", directoryContents); 141 | } else { 142 | NSAlert *errModal = [[NSAlert alloc] init]; 143 | [errModal setAlertStyle:NSAlertStyleCritical]; 144 | [errModal setMessageText:@"Failed to get container permission."]; 145 | [errModal setInformativeText:[NSString stringWithFormat:@"Error: %@", error.localizedDescription]]; 146 | [errModal runModal]; 147 | } 148 | } 149 | } else { 150 | NSAlert *errModal = [[NSAlert alloc] init]; 151 | [errModal setAlertStyle:NSAlertStyleCritical]; 152 | [errModal setMessageText:@"Failed to get container permission."]; 153 | [errModal setInformativeText:@"You did not click OK."]; 154 | [errModal runModal]; 155 | } 156 | }]; 157 | } 158 | 159 | - (void)handleIBooksAssetOpenNotification:(NSNotification *)notification { 160 | if (notification.object == nil) { 161 | return; 162 | } 163 | 164 | id bookEntity = [notification.object asset]; 165 | 166 | NSString *bookTitle = [bookEntity title]; 167 | NSString *bookAuthor = [bookEntity author]; 168 | NSString *bookAssetID = [bookEntity assetID]; 169 | 170 | NSString *bookAssetPath = [[bookEntity url] absoluteString]; 171 | NSLog(@"%@", bookAssetPath); 172 | bookAssetPath = [bookAssetPath stringByReplacingOccurrencesOfString:@"file://" withString:@""]; 173 | NSLog(@"%@", bookAssetPath); 174 | bookAssetPath = [bookAssetPath stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"/"]]; 175 | NSLog(@"%@", bookAssetPath); 176 | bookAssetPath = [@"/" stringByAppendingString:bookAssetPath]; 177 | 178 | NSAlert *alert = [[NSAlert alloc] init]; 179 | [alert setAlertStyle:NSAlertStyleCritical]; 180 | [alert setMessageText:@"Cannot Export!"]; 181 | [alert setInformativeText:@"iBooks files are not supported yet, but will be in a future release."]; 182 | [alert runModal]; 183 | 184 | //[self promptDecryptWithTitle:bookTitle author:bookAuthor assetID:bookAssetID path:bookAssetPath]; 185 | } 186 | 187 | - (void)handleEPUBBookOpenNotification:(NSNotification *)notification { 188 | id layoutController = notification.object; 189 | id bookEntity = [layoutController safeSwiftValueForKey:@"bookEntity"]; 190 | 191 | NSString *bookTitle = [bookEntity safeSwiftValueForKey:@"title"]; 192 | NSString *bookAuthor = [bookEntity safeSwiftValueForKey:@"author"]; 193 | NSString *bookAssetID = [bookEntity safeSwiftValueForKey:@"assetID"]; 194 | NSString *bookAssetPath = [bookEntity safeSwiftValueForKey:@"path"]; 195 | 196 | [self promptDecryptWithTitle:bookTitle author:bookAuthor assetID:bookAssetID path:bookAssetPath]; 197 | } 198 | 199 | - (void)promptDecryptWithTitle:(NSString *)bookTitle author:(NSString *)bookAuthor assetID:(NSString *)bookAssetID path:(NSString *)bookAssetPath { 200 | 201 | NSString *bookAssetExtension = [bookAssetPath pathExtension]; 202 | 203 | // Present a confirmation alert. 204 | NSAlert *confirmation = [[NSAlert alloc] init]; 205 | NSString *message = [NSString stringWithFormat:@"Do you want to decrypt %@ by %@?", bookTitle, bookAuthor]; 206 | [confirmation setInformativeText:message]; 207 | [confirmation addButtonWithTitle:@"Yes"]; 208 | [confirmation addButtonWithTitle:@"No"]; 209 | [confirmation setMessageText:@"Decrypt Item?"]; 210 | 211 | NSModalResponse response = [confirmation runModal]; 212 | if (response == NSAlertSecondButtonReturn) { 213 | return; 214 | } 215 | 216 | // Allow the user to select a place to save the item. 217 | NSOpenPanel *openPanel = [NSOpenPanel openPanel]; 218 | // [openPanel setNameFieldStringValue:[NSString stringWithFormat:@"%@.%@", bookTitle, bookAssetExtension]]; 219 | [openPanel setCanCreateDirectories:YES]; 220 | [openPanel setCanChooseDirectories:YES]; 221 | [openPanel setPrompt:@"OK"]; 222 | [openPanel setMessage:@"Select a folder to save the decrypted item."]; 223 | 224 | [openPanel beginSheetModalForWindow:nil completionHandler:^(NSModalResponse result) { 225 | NSURL *selection = [openPanel URL]; 226 | NSError *error; 227 | NSData *permit = [selection bookmarkDataWithOptions:NSURLBookmarkCreationWithSecurityScope 228 | includingResourceValuesForKeys:nil 229 | relativeToURL:nil 230 | error:&error]; 231 | 232 | if (permit) { 233 | self.decryptLocationPermit = permit; 234 | } 235 | 236 | if (result == NSModalResponseOK) { 237 | [self decryptAssetWithPath:bookAssetPath savePath:[[openPanel URL] path] withCompletion:^(BOOL success) { 238 | 239 | if (!success) { 240 | NSAlert *errModal = [[NSAlert alloc] init]; 241 | [errModal setAlertStyle:NSAlertStyleCritical]; 242 | [errModal setMessageText:@"Failed to decrypt this item."]; 243 | [errModal setInformativeText:@"View the console for more details."]; 244 | [errModal runModal]; 245 | } else { 246 | NSAlert *successModal = [[NSAlert alloc] init]; 247 | [successModal setMessageText:@"Success"]; 248 | [successModal setInformativeText:@"Content has been decrypted and saved."]; 249 | [successModal addButtonWithTitle:@"OK"]; 250 | [successModal addButtonWithTitle:@"Open directory"]; 251 | NSModalResponse successResponse = [successModal runModal]; 252 | 253 | if (successResponse == NSAlertSecondButtonReturn) { 254 | NSLog(@"Should've opened."); 255 | [[NSWorkspace sharedWorkspace] openURL:selection]; 256 | } 257 | } 258 | }]; 259 | } 260 | }]; 261 | } 262 | 263 | - (void)instructionsClicked:(id)sender { 264 | NSLog(@"Instructions clicked!"); 265 | 266 | NSAlert *alert = [[NSAlert alloc] init]; 267 | [alert setMessageText:@"Instructions"]; 268 | [alert setInformativeText:@"Open an EPUB book you'd like to decrypt. " 269 | "Once opened, a confirmation dialog will be presented.\n" 270 | "Upon confirming, you may select a location to save the decrypted EPUB file."]; 271 | [alert runModal]; 272 | 273 | } 274 | 275 | - (void)aboutItemClicked:(id)sender { 276 | NSLog(@"About clicked!"); 277 | NSAlert *about = [[NSAlert alloc] init]; 278 | 279 | [about setMessageText:@"RemoveBooksDRM"]; 280 | [about setInformativeText:@"Version " VERSION "\n\n" 281 | "Bypass: @AngeloD2022\n" 282 | "Implementation: @AngeloD2022, @JJTech0130\n\n" 283 | "ReverseApple, 2024\n" 284 | "Released under the AGPL"]; 285 | 286 | [about runModal]; 287 | } 288 | 289 | - (void)decryptAssetWithPath:(NSString *)inputPath savePath:(NSString *)saveAs withCompletion:(void (^)(BOOL))block { 290 | dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ 291 | BookExporter *exporter = [BookExporter exporterWithBookPath:inputPath]; 292 | BOOL success = [exporter exportToPath:saveAs]; 293 | 294 | dispatch_async(dispatch_get_main_queue(), ^{ 295 | block(success); 296 | }); 297 | }); 298 | } 299 | 300 | @end 301 | 302 | 303 | __attribute__((constructor)) 304 | static void injected(int argc, const char **argv) { 305 | NSLog(@"UNFAIR!"); 306 | NSLog(@"Injected successfully!"); 307 | 308 | // This was a pain in the ass! 309 | [[NSNotificationCenter defaultCenter] 310 | addObserverForName:NSMenuDidAddItemNotification 311 | object:nil 312 | queue:[NSOperationQueue mainQueue] 313 | usingBlock:^(NSNotification *note) { 314 | [Utilities debounced:^{ 315 | [RBDRMDelegate build]; 316 | } withDelay:1]; 317 | }]; 318 | 319 | } 320 | -------------------------------------------------------------------------------- /src/util.h: -------------------------------------------------------------------------------- 1 | 2 | #import 3 | 4 | 5 | @interface Utilities : NSObject 6 | + (void)debounced:(void(^)(void))block withDelay:(float)delay; 7 | @end 8 | 9 | 10 | @implementation Utilities 11 | 12 | + (void)debounced:(void (^)(void))block withDelay:(float)delay { 13 | 14 | static dispatch_source_t debounceTimer; 15 | 16 | if (debounceTimer) { 17 | dispatch_source_cancel(debounceTimer); 18 | } 19 | 20 | debounceTimer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0, dispatch_get_main_queue()); 21 | 22 | dispatch_source_set_timer(debounceTimer, 23 | dispatch_time(DISPATCH_TIME_NOW, delay * NSEC_PER_SEC), 24 | DISPATCH_TIME_FOREVER, 0); 25 | 26 | __block dispatch_source_t dt = debounceTimer; 27 | 28 | dispatch_source_set_event_handler(debounceTimer, ^{ 29 | block(); 30 | if (dt) { 31 | dispatch_source_cancel(dt); 32 | dt = nil; 33 | } 34 | }); 35 | 36 | dispatch_resume(debounceTimer); 37 | } 38 | 39 | @end 40 | --------------------------------------------------------------------------------