利用Cycript調試App
一、Cycript是什麼?
-
Cycript
是一種腳本語言,是Objective-C、JavaScript、Java等語法的混合物,這就意味着我們可以在一條命令中使用這些語言的語法,甚至可以混合使用。(作者是Jay Freeman,沒錯,就是Cydia
的作者,Jay Freeman出品必屬精品,放心使用吧)
-
-
Cycript
可以用來調試、探索、修改正在運行的Mac/iOS App,只需要通過Cydia
就可以安裝Cycript
了,然後就可以盡情的在iPhone上調試運行中的App了。
-
二、Cycript的用法
- 使用Cycript的前提是:Mac通過SSH遠程登錄到了iPhone,並且iPhone安裝了
Cycript
腳本 (iPhone越獄後通過Cydia
搜索安裝)
- 使用Cycript的前提是:Mac通過SSH遠程登錄到了iPhone,並且iPhone安裝了
-
想要調試某個App就需要知道此App的進程名稱,在手機上打開想要調試的App,使用
ps -A
命令,列出來所有進程後,找到想要調試的APP的進程名即可。(例如:我們要調試皮皮蝦App,在手機上打開皮皮蝦,輸入ps -A
命令,找到皮皮蝦的進程名稱是Super
,如下圖所示)
-
-
- 選擇某個進程進行掛載,掛載某個進程:
cycript -p 進程名稱或者進程ID
- 特別 特別 特別 要注意,這種掛載進程的方法只適用於iOS12之前的系統,iOS12及其以後的系統,要用另一種方法掛載,詳情請看下面的第五章
- 選擇某個進程進行掛載,掛載某個進程:
例如:想掛載皮皮蝦App,先讓皮皮蝦App在手機裏跑起來,找到進程名後,輸入以下命令
cycript -p Super
-
利用以上三步就可以掛載某個進程了,掛載之後,出現
cy#
,如下圖所示,就意味着進入了Cycript腳本環境了,就可以輸入Cycript語法來調試這個進程了
-
-
- cycript環境下的快捷鍵:
- 退出:Ctrl + D
- 清屏:Command + R
- 取消輸入:Ctrl + C
- 總結一下,其實非常簡單
1>.使用前提:MacSSH登錄了iPhone,iPhone安裝了Cycript
2>.ps -A , 找出所有進程
3>.cycript -p Super,掛載皮皮蝦,出現cy#,說明進入到了Cycript環境
三、Cycript的常用語法
-
UIApp
,就相當於OC中的[UIApplication sharedApplication]
-
-
定義變量:
var 變量名 = 變量值
-
-
用變量地址獲取對象:
#內存地址
,例如:#0x109703340
,就拿到了這個地址的對象
-
-
查看對象的所有成員變量:
*對象
,例如:*UIApp
,就是拿到了UIApplication對象的所有變量
-
- 查看已經加載的所有OC類,
ObjectiveC.classes
- 查看已經加載的所有OC類,
- 遞歸打印所有View的子控件,
view.recursiveDescription().toString()
- 遞歸打印所有View的子控件,
-
篩選出某種類型的對象:
choose(類型名稱)
,例如choose(UIButton)
,找出所有UIButton類型的對象
-
四、封裝並導入Cycript庫
- 大家是不是覺得上面的語法比較繁瑣,用起來很不方便,我們可以把常用的語法封裝進一個
.cy
文件中,以後直接用就可以了
- 大家是不是覺得上面的語法比較繁瑣,用起來很不方便,我們可以把常用的語法封裝進一個
- 例如把下面的代碼,放到common.cy文件中 (大家仿照下面的代碼寫就可以了,exports參數是固定的,不需要改)
(function(exports){
// app id
AppId = [NSBundle mainBundle].bundleIdentifier;
// mainBundlePath
BundlePath = [NSBundle mainBundle].bundlePath;
// keyWindow
KeyWin = function() {
return UIApp.keyWindow;
};
// rootView
RootVc = function() {
return UIApp.keyWindow.rootViewController;
};
})(exports);
- 然後把封裝好的
.cy文件
放到手機的/usr/lib/cycript0.9
目錄下
- 然後把封裝好的
- 以後進入
cycript環境後
,首先導入封裝好的cy文件,就可以使用封裝好的方法了,命令是:@import xxx.cy
- 以後進入
-
MJ大佬封裝好了一個.cy文件mjcript,大家可以去下載,放到手機的
/usr/lib/cycript0.9
目錄下,以後再進入cycript環境後
,只需要@import mjcript
,就可以使用裏面的方法了。如下圖所示:
-
五、在iOS12及以後的系統,掛載進程的方法
- 在iOS12以後,使用
cycript -p 進程名
的方法掛載進程,就會報下面的錯誤:
- 在iOS12以後,使用
assert($mach_task_self != NULL)
*** _assert(status == 0):../Inject.cpp(143):InjectLibrary
- iOS12以後要使用cyrun掛載進程,進入cycript環境後,所有操作還跟以前一樣
-
-
cyrun
安裝方法:
- (1). 通過Cydia安裝
New Curses、readline、adv-cmds、wget
(wget
主要爲了在iPhone上可以下載deb文件) - (2). 以root賬戶登錄到iPhone上,輸入以下命令,下載以下
deb文件
wget http://apt.saurik.com/debs/cycript_0.9.594_iphoneos-arm.deb wget http://www.tateu.net/repo/files/net.tateu.cycriptlistenertweak_1.0.0_iphoneos-arm.deb wget http://www.tateu.net/repo/files/net.tateu.cyrun_1.0.5_iphoneos-arm.deb
- (3). 輸入以下命令,安裝下載好的deb
dpkg -i cycript_0.9.594_iphoneos-arm.deb dpkg -i net.tateu.cycriptlistenertweak_1.0.0_iphoneos-arm.deb net.tateu.cyrun_1.0.5_iphoneos-arm.deb
-
- 安裝成功之後,以後想進入
cycript環境
,直接輸入cyrun -n 進程名 -e -d -f
或者cyrun -b bundleID -e
命令就可以了,此命令會重啓相應的進程,然後自動進入cycript環境
- 安裝成功之後,以後想進入
- 想退出的時候,按
Control+D
就可以退出cycript
環境時,退出後會自動殺掉該進程
- 想退出的時候,按
-
以皮皮蝦APP爲例,使用
cyrun
命令進入cycript
環境,導入寫好的mjcript庫
,查看皮皮蝦APP的當前控制器和根控制器,如下圖所示:
-
六、知識點總結
1>.使用Cycript調試APP的前提:用Mac以SSH的方式登錄了iPhone,iPhone安裝了Cycript
2>.ps -A , 找出所有進程,找到要調試的APP
3>.以皮皮蝦APP爲例,掛載皮皮蝦APP的進程:
- iOS12系統以前的掛載 :cycript -p Super
- iOS12系統以後的掛載 :cyrun -n Super -e -d -f 或者 cyrun -b bundleID -e
4>. 掛載後,會進入cycript環境,導入封裝好的庫,使用其中的方法進行調試: @import mjcript
5>. 找到皮皮蝦APP的當前控制器: MJFrontVc()
6>. 退出cycript環境:Control + D
七、修改皮皮蝦APP界面
- 利用上述所學,來實際改一下皮皮蝦APP的界面,將登錄界面中的"登錄",改成"逆向調試"
-
- 流程如下:
- 首先,SSH到iPhone:
sh login.sh
- 然後,掛載皮皮蝦APP:
cyrun -n Super -e -d -f
- 然後,導入mjcipt庫:
@import mjcript
- 然後,用手機打開皮皮蝦的登錄界面
- 然後,查看登錄界面的控制器:
MJFrontVc()
- 然後,查看登錄界面的View的層級結構:
MJVcSubviews(#0x107b0f400)
- 然後,輸入"登錄",查看”登錄“的unicode編碼
- 然後,搜索”登錄“的unicode編碼,找到登錄所屬的
UILabel對象
- 然後,修改此UILabel的text屬性:
#0x117917e10.text = '逆向調試'
- 然後, 修改此UILabel的size屬性:
#0x117917e10.size = MJSizeMake(200,30)
- 最後,Control+D退出cycript環境
- 所有代碼如下:
songpengdeMBP:~ songpeng$ sh login.sh
iPhone7ceshiji:~ root# cyrun -n Super -e -d -f
applicationName: Super is not running (-1)
executableName: Super
bundleIdentifier: com.bd.iphone.super
Cycript is inactive:
Device is not passcode locked
Tweak Mode
Waiting for Cycript to become active...
Successfully enabled, you may now run
cycript -r 127.0.0.1:8556
cy# @import mjcript
{}
cy# MJFrontVc()
#"<BDSLoginViewController: 0x107b0f400>"
cy# MJVcSubviews(#0x107b0f400)
`<UIView: 0x11719b2b0; frame = (0 0; 375 667); autoresize = W+H; gestureRecognizers = <NSArray: 0x2836757d0>; layer = <CALayer: 0x283b2dea0>>
| <BDSNavigationBar: 0x117194a60; baseClass = UIControl; frame = (0 0; 375 64); layer = <CALayer: 0x283b2e060>>
| | <UIView: 0x106dc3600; frame = (0 20; 375 44); layer = <CALayer: 0x283b2aec0>>
| | | <BDSNavigationBarItem: 0x1179baa00; baseClass = UIControl; frame = (0 0; 48 44); layer = <CALayer: 0x283b29d80>>
| | | | <UIImageView: 0x1179b2870; frame = (12 10; 24 24); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x283b2ac60>>
| | | <BDSNavigationBarItem: 0x1179babf0; baseClass = UIControl; frame = (314 8; 48 36); hidden = YES; layer = <CALayer: 0x283b2ae40>>
| | | | <UILabel: 0x1179b2bc0; frame = (0 0; 48 36); text = '\u8df3\u8fc7'; clipsToBounds = YES; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a15e00>>
| | | <UILabel: 0x117196d00; frame = (187.5 0; 0 44); userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a137f0>>
| | | | <_UILabelContentLayer: 0x283b34c60> (layer)
| <UILabel: 0x117917e10; frame = (24 81.4815; 80 56); text = '\u767b\u5f55'; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a15a40>>
| | <_UILabelContentLayer: 0x283b34b60> (layer)
| <UITextField: 0x117136290; frame = (26 186.37; 336 42); text = ''; opaque = NO; gestureRecognizers = <NSArray: 0x28349c5a0>; layer = <CALayer: 0x283b2dce0>>
| | <UITextFieldLabel: 0x11719a4c0; frame = (0 0; 309 42); text = '\u8f93\u5165\u624b\u673a\u53f7'; opaque = NO; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a11590>>
| | | <_UILabelContentLayer: 0x283b34a80> (layer)
| | <UIFieldEditor: 0x1073b4c00; frame = (0 0; 309 42); text = ''; clipsToBounds = YES; opaque = NO; gestureRecognizers = <NSArray: 0x283652c70>; layer = <CALayer: 0x283b2dd00>; contentOffset: {0, 0}; contentSize: {309, 42}; adjustedContentInset: {0, 0, 0, 0}>
| | | <_UITextFieldCanvasView: 0x117169530; frame = (0 0; 309 42); opaque = NO; userInteractionEnabled = NO; layer = <_UITextTiledLayer: 0x28085d8c0>>
| | | | <UITextSelectionView: 0x1171a6d20; frame = (0 0; 0 0); userInteractionEnabled = NO; layer = <CALayer: 0x283b3a260>>
| | | | | <UIView: 0x1179a4810; frame = (0 0; 2 42); userInteractionEnabled = NO; layer = <CALayer: 0x283b3d9c0>>
| <UIView: 0x11712f6f0; frame = (24 233.556; 327 1); layer = <CALayer: 0x283b2e7e0>>
| <UIButton: 0x1171bbd80; frame = (0 401; 375 50); opaque = NO; layer = <CALayer: 0x283b2e880>>
| | <UIImageView: 0x117194e00; frame = (0 0; 375 50); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x283b34f20>>
| | <UIButtonLabel: 0x106cd0180; frame = (145 13; 85 24); text = '\u83b7\u53d6\u9a8c\u8bc1\u7801'; opaque = NO; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a1f840>>
| | | <_UILabelContentLayer: 0x283b35200> (layer)
| <UILabel: 0x1171b5b40; frame = (24 246.5; 327 20); text = '\u4e3a\u4e86\u60a8\u7684\u8d26\u53f7\u5b89\u5168\uff0c\u8bf7\u7ed1\u5b9a\u624b\u673a\u53f7'; hidden = YES; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a1f7f0>>
| | <_UILabelContentLayer: 0x283b34ec0> (layer)
| <UILabel: 0x11717c3d0; frame = (24 372.5; 327 18); userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a1dc70>>
| | <_UILabelContentLayer: 0x283b35140> (layer)
| <BDSVerifyCodeInputView: 0x117147b90; frame = (24 168.889; 327 54); hidden = YES; layer = <CALayer: 0x283b2eb00>>
| | <UITextField: 0x11718d1b0; frame = (0 8; 2 38); text = ''; opaque = NO; tintColor = UIExtendedGrayColorSpace 0.25098 1; gestureRecognizers = <NSArray: 0x283648720>; layer = <CALayer: 0x283b2eb20>>
| | | <_UITextFieldCanvasView: 0x1171bd3d0; frame = (0 0; 2 38); opaque = NO; userInteractionEnabled = NO; layer = <_UITextTiledLayer: 0x28085da70>>
| | <BDSVerifyCodeInputLabel: 0x1179b3330; baseClass = UILabel; frame = (0 0; 327 54); userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a15860>>
| | | <_UILabelContentLayer: 0x283b35820> (layer)
| <UILabel: 0x11792be30; frame = (0 231.778; 375 20); text = '\u9a8c\u8bc1\u7801\u9519\u8bef'; hidden = YES; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a15770>>
| | <_UILabelContentLayer: 0x283b35080> (layer)
| <BDSRegisterProtocolView: 0x117958e20; frame = (39 361; 297 38); layer = <CALayer: 0x283b32c20>>
| | <UIButton: 0x1179f8ec0; frame = (10 10; 18 18); opaque = NO; layer = <CALayer: 0x283b32b60>>
| | | <UIImageView: 0x11717e320; frame = (0 0; 18 18); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x283b359e0>>
| | <TTTAttributedLabel: 0x117920400; baseClass = UILabel; frame = (32 9; 255 20); text = '\u6211\u5df2\u9605\u8bfb\u5e76\u540c\u610f\u201c\u7528\u6237\u534f\u8bae\u201d\u548c\u201c\u9690\u79c1\u653f\u7b56\u201d'; gestureRecognizers = <NSArray: 0x28366c2a0>; layer = <_UILabelLayer: 0x281a145a0>>
| | | <_UILabelContentLayer: 0x283b35300> (layer)
| <UIButton: 0x1179dfa80; frame = (145 140.481; 17 17); hidden = YES; opaque = NO; layer = <CALayer: 0x283b32b20>>
| | <UIImageView: 0x11715ed00; frame = (0 0; 17 17); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x283b35a00>>
| <UIView: 0x1179bf5e0; frame = (24 249.5; 128 24); layer = <CALayer: 0x283b32500>>
| | <ArticlePlatformLoginView: 0x11791bb60; frame = (0 0; 128 24); layer = <CALayer: 0x283b32f60>>
| | | <BDSAlphaThemedButton: 0x117159ab0; baseClass = UIButton; frame = (104 0; 24 24); opaque = NO; layer = <CALayer: 0x283b2f300>>
| | | | <UIImageView: 0x11717a9b0; frame = (0 0; 24 24); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x283b35860>>
| | | <UILabel: 0x11710ec00; frame = (0 2; 84 20); text = '\u5176\u5b83\u65b9\u5f0f\u767b\u5f55'; userInteractionEnabled = NO; layer = <_UILabelLayer: 0x281a1f570>>
| | | | <_UILabelContentLayer: 0x283b357a0> (layer)`
cy# 登錄
throw new ReferenceError("Can't find variable: \u767b\u5f55")
cy# #0x117917e10.text = '逆向調試'
"\u9006\u5411\u8c03\u8bd5"
cy# #0x117917e10.size = MJSizeMake(200,30)
{0:200,1:30}
-
效果圖如下:
-