@leaveslife wrote:
在创建一个逆向工程项目时，如何让工程使用起来更加便捷和易于扩展，以及编译器识别，能够大大提升我们日常的开发效率以及代码的质量。本文主要描述了，如果使用Theos的tweak工程，创建一个可以被Xcode编译器识别的项目工程，以及工程中常用的配置。
搭建逆向环境
搭建好环境之后，创建对应的tweak工程项目
创建Xcode项目
根据前面创建好的tweak项目名称，创建一个Xcode静态库项目，然后将tweak和创建的Xcode项目混合到一起
在Xcode项目里面创建一个Config文件夹（New Group Without Folder），将Makefile、对应的plist文件、control配置文件，不要copy放到此目录下。 然后在Xcode里面，创建对应的文件夹，然后将生成的
.xm文件的后缀名，全部替换为.xmi，并且放到项目的最外层，作为唯一的入口类设置Tweak.xmi在Xcode编译器识别类型为
Objective-C++设置XcodeTheos头文件，让编译器识别logos语法，对应的头文件的地址：https://github.com/onezens/Xcode-Theos，导入项目之后，创建一个全局头文件，并且到该头文件放到
tweak.xmi里面，发现里面的代码是黑色的，没有被编译器识别，这时候，关闭项目重新打开后发现会被Xcode重新识别了接着设置
XcodeTheos的宏，让Xcode识别logos宏
一起设置好之后，开始写logos的hook代码，一切正常的话，你会发现Xcode写起logos代码超级顺畅，并且编译Xcode提示成功
将Xcode的配置和Makefile进行同步
首先修改Makefile的编译文件
在以后创建对应的logos语法的文件时，始终命名为xmi文件，并且写入Makefile里面WeChatBot_FILES = Tweak.xm => 修改为： WeChatBot_FILES = Tweak.xmi在项目中头文件引用路径问题，导致编译失败
➜ WeChatBot git:(master) ✗ make > Making all for tweak WeChatBot… ==> Preprocessing Tweak.xmi… Tweak.xmi:2:9: fatal error: 'wechatbot-prefix-header.h' file not found #import "wechatbot-prefix-header.h" ^~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 error generated. make[3]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/armv7/Tweak.mii] Error 1 make[2]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/armv7/WeChatBot.dylib] Error 2 make[1]: *** [internal-library-all_] Error 2 make: *** [WeChatBot.all.tweak.variables] Error 2发现是头文件，引入的原因，Makefile里面设置头文件目录
#头文件 WeChatBot_OBJCFLAGS += -I./WeChatBot/Headers/wechatHeaders/ WeChatBot_OBJCFLAGS += -I./WeChatBot/Headers/如果使用最新版的theos，我们会发现编译
.xmi文件会包下面的错误➜ WeChatBot git:(master) ✗ make > Making all for tweak WeChatBot… ==> Preprocessing Tweak.xmi… ==> Compiling Tweak.xmi (arm64)… Tweak.xmi:18:104: error: use of undeclared identifier 'MSHookMessageEx' {Class _logos_class$_ungrouped$MicroMessengerAppDelegate = objc_getClass("MicroMessengerAppDelegate"); MSHookMessageEx(_logos_class$_ungro... ^ 1 error generated. make[3]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/arm64/Tweak.xmi.ca6fefe9.o] Error 1 make[2]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/arm64/WeChatBot.dylib] Error 2 make[1]: *** [internal-library-all_] Error 2 make: *** [WeChatBot.all.tweak.variables] Error 2解决办法：
- 将所有的
.xmi更改为.xi文件， 并且导入头文件#include <substrate.h>- 使用老版本的theos:
https://github.com/onezens/theos.git替换原版进行编译解决编译警告，导致报错的问题
➜ WeChatBot git:(master) ✗ make > Making all for tweak WeChatBot… ==> Preprocessing Tweak.xmi… ==> Compiling Tweak.xmi (arm64)… Tweak.xmi:8:4: error: 'UIAlertView' is deprecated: first deprecated in iOS 9.0 - UIAlertView is deprecated. Use UIAlertController with a preferredStyle of UIAlertControllerStyleAlert instead [-Werror,-Wdeprecated-declarations] UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Works for hook" message:__null delegate:__null cancelButtonTitle:@"cancel" otherBu... ^ /opt/theos/sdks/iPhoneOS11.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIAlertView.h:26:12: note: 'UIAlertView' has been explicitly marked deprecated here @interface UIAlertView : UIView ^ Tweak.xmi:8:27: error: 'UIAlertView' is deprecated: first deprecated in iOS 9.0 - UIAlertView is deprecated. Use UIAlertController with a preferredStyle of UIAlertControllerStyleAlert instead [-Werror,-Wdeprecated-declarations] UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Works for hook" message:__null delegate:__null cancelButtonTitle:@"cancel" otherBu... ^ /opt/theos/sdks/iPhoneOS11.2.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIAlertView.h:26:12: note: 'UIAlertView' has been explicitly marked deprecated here @interface UIAlertView : UIView ^ 2 errors generated. make[3]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/arm64/Tweak.xmi.6c3ff448.o] Error 1 make[2]: *** [/Users/wz/Documents/GitHub/WeChatBot/.theos/obj/debug/arm64/WeChatBot.dylib] Error 2 make[1]: *** [internal-library-all_] Error 2 make: *** [WeChatBot.all.tweak.variables] Error 2解决办法：
- 将Makefile里面的版本号降低：
TARGET = iphone:11.2:7.0- Makefile里面设置忽略方法过期警告：
#忽略OC警告 WeChatBot_OBJCFLAGS += -Wno-deprecated-declarations项目中动态和静态库的配置
系统库
#导入系统的frameworks WeChatBot_FRAMEWORKS = Foundation UIKit #导入系统库 WeChatBot_LIBRARIES = stdc++ c++配置第三库
#导入第三方Frameworks, 动态库需特殊处理 WeChatBot_LDFLAGS += -F./Libraries/dynamic -F./Libraries/static # 识别的库实现 WeChatBot_CFLAGS += -F./Libraries/dynamic -F./Libraries/static # 头文件识别 WeChatBot_FRAMEWORKS += WCBFWStatic WCBFWDynamic #导入第三方lib WeChatBot_LDFLAGS += -L./Libraries/dynamic -L./Libraries/static # 识别的库实现 WeChatBot_CFLAGS += -I./Libraries/include # 头文件识别 WeChatBot_LIBRARIES += WCBStatic WCBDyLib对应的本地文件夹说明
include 放置所有的.a和.dylib库的头文件
dynamic 放置所有的动态库的文件夹，动态库放一起，方便脚本处理
static 防止所有的静态库的文件夹动态库问题
当我们把，动态库加入的项目中，我们发现运行我们的tweak插件，在宿主APP中不起作用，通过log提示信息为：
Apr 9 15:55:28 wz5 WeChat[5329] <Error>: MS:Error: dlopen(/Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib, 9): Library not loaded: @rpath/WCBFWDynamic.framework/WCBFWDynamic Referenced from: /Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib Reason: image not found该日志信息中可以看出，宿主在自己的bundle里面，没有加载到我们的动态库，所以导致我们整个插件的功能不生效
查看生成的动态库：
➜ WeChatBot git:(master) ✗ otool -L .theos/_/Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib .theos/_/Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib: /Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /System/Library/Frameworks/Foundation.framework/Foundation (compatibility version 300.0.0, current version 1450.14.0) /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation (compatibility version 150.0.0, current version 1450.14.0) /System/Library/Frameworks/UIKit.framework/UIKit (compatibility version 1.0.0, current version 3698.33.6) @rpath/WCBFWDynamic.framework/WCBFWDynamic (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.1) @rpath/libWCBDyLib.dylib (compatibility version 0.0.0, current version 0.0.0) /Library/Frameworks/CydiaSubstrate.framework/CydiaSubstrate (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.0.0)我们发现tweak项目的动态库，依赖都是rpath，是宿主的bundle路径，所以我们要更改这个路径
解决办法，通过脚本,更改动态库依赖路径：
TWEAK_NAME=WeChatBot cydiaLibPath=/Library/MobileSubstrate/DynamicLibraries/$TWEAK_NAME dylibPath=Libraries/dynamic oriDylibPath=$dylibPath/ori tweakLayoutPath=layout$cydiaLibPath echo $tweakLayoutPath if [[ ! -d $oriDylibPath ]]; then mkdir $oriDylibPath fi if [[ ! -d $tweakLayoutPath ]]; then mkdir $tweakLayoutPath fi checkDylibID() { path=$1 libFullPath=$2 ckLibId=$(otool -L $path | grep rpath) if [[ -n $ckLibId ]]; then cp -r $libFullPath $oriDylibPath ckLibId=${ckLibId%' ('*} ckLibId=${ckLibId#*/} install_name_tool -id $cydiaLibPath/$ckLibId $path otool -L $path fi cp -r $libFullPath $tweakLayoutPath } for file in $dylibPath/*; do if [[ $file =~ ".dylib" ]]; then checkDylibID $file $file elif [[ $file =~ ".framework" ]]; then name=${file##*/} name=${name%.*} checkDylibID $file/$name $file fi done在每次package之前，运行此脚本，打包完成后查看信息：
➜ WeChatBot git:(master) ✗ otool -L .theos/_/Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib .theos/_/Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib: /Library/MobileSubstrate/DynamicLibraries/WeChatBot.dylib (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libobjc.A.dylib (compatibility version 1.0.0, current version 228.0.0) /System/Library/Frameworks/Foundation.framework/Foundation (compatibility version 300.0.0, current version 1450.14.0) /System/Library/Frameworks/CoreFoundation.framework/CoreFoundation (compatibility version 150.0.0, current version 1450.14.0) /System/Library/Frameworks/UIKit.framework/UIKit (compatibility version 1.0.0, current version 3698.33.6) /Library/MobileSubstrate/DynamicLibraries/WeChatBot/WCBFWDynamic.framework/WCBFWDynamic (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.1) /Library/MobileSubstrate/DynamicLibraries/WeChatBot/libWCBDyLib.dylib (compatibility version 0.0.0, current version 0.0.0) /Library/Frameworks/CydiaSubstrate.framework/CydiaSubstrate (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.0.0)常用的编译命令配置
简化常用命令，提高日常开发效率
before-package:: sh bin/check_dynamic_lib.sh #动态库处理脚本 cp ./bin/postinst .theos/_/DEBIAN/ cp ./bin/postrm .theos/_/DEBIAN/ chmod 755 .theos/_/DEBIAN/postinst chmod 755 .theos/_/DEBIAN/postrm after-install:: install.exec "killall -9 SpringBoard" p:: make package c:: make clean i:: make make p make install常用的脚本说明
postinst 脚本是每次deb包安装之前执行的脚本
postrm 脚本是每次deb包安装完成后执行的脚本注意：打包前需要修改这两个的执行权限
chmod 755 .theos/_/DEBIAN/postinst chmod 755 .theos/_/DEBIAN/postrm相关的脚本描述：http://iphonedevwiki.net/index.php/Packaging
应用场景：在Cydia中安装插件，并且显示返回按钮
postrm脚本 & 删除control的depend依赖：#!/bin/bash declare -a cydia cydia=($CYDIA) if [[ ${CYDIA+@} ]]; then eval "echo 'finish:open' >&${cydia[0]}" else echo "uninstall wk completed!" echo "" fi killall -9 WeChat exit 0参数说明：
Acceptable parameters for finish # return - normal behaviour (return to cydia) # reopen - exit cydia # restart - reload springboard # reload - reload springboard # reboot - reboot device资源文件的导入
通过项目根目录中的layout目录，映射文件到手机设备当中，然后读取资源文件
#define kWCBImgSrcPath @"/Library/AppSupport/WeChatBot/imgs" UIImage *img = [UIImage imageWithContentsOfFile:[NSString stringWithFormat:@"%@/wcb_icon.png", kWCBImgSrcPath]]; NSLog(@"[WeChatBot] img: %@", img); UIImageView *imgView = [[UIImageView alloc] initWithImage:img]; [imgView sizeToFit]; imgView.center = CGPointMake(46, 60); [self.window addSubview:imgView];其他配置说明
Makefile
#用于编译的SDK和支持的ios最低版本 TARGET = iphone:11.2:9.0 #用于调试的设备地址 THEOS_DEVICE_IP = localhost THEOS_DEVICE_PORT = 2222 # 打包命名不一样，正式包不会输出log等 DEBUG = 1 # 采用ARC内存管理 WeChatBot_CFLAGS = -fobjc-arc #忽略OC警告，避免警告导致编译不过 WeChatBot_OBJCFLAGS += -Wno-deprecated-declarations -Wno-unused-variablecontrol
Package: cc.onezen.wechatbot #报名 Name: WeChatBot Depends: mobilesubstrate #依赖库和依赖插件，如果需要插件在cydia安装后不重启springboard可以删掉，否则每次重新 Version: 0.0.1 Architecture: iphoneos-arm Description: An awesome MobileSubstrate tweak! Maintainer: wz Author: wz Section: Tweaks #cydia源中的分类 Icon: file:///Library/AppSupport/WeChatBot/imgs/wcb_icon.png #icon项目
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