class-dump + DumpFrameworks.pl

目的:实现生成 private framework 的 .h,以便倒入项目使用私有 api。

 

 

一、class-dump

  下载地址: http://stevenygard.com/download/

  安装步骤:

    a) 下载了 dmg 打开并把 class-dump copy 到 /usr/bin/ 目录下;

    b) 修改 class-dump 的权限,

$ chmod 777 /usr/bin/class-dump

 

 

二、DumpFrameworks.pl

  从 github 上别人越狱的工程上下载: https://github.com/shuhongwu/HackSpringDemo/blob/master/DumpFrameworks.pl

  a) 放到任意目录可行。

  b) 根据自己 framework 的地址,修改路径。

  c) cd 到  DumpFrameworks.pl 的路径,并执行

$ ./DumpFrameworks.pl

DumpFrameworks.pl 文件内容:

#!/usr/bin/perl
#
# 24 November 2008
# Framework Dumping utility; requires class-dump
#

use strict;

use Cwd;
use File::Path;

my $HOME = (getpwuid($<))[7] || $ENV{'HOME'} 
  or die "Could not find your home directory!";

# This command must be in your path.
# http://www.codethecode.com/projects/class-dump/
my $CLASS_DUMP = 'class-dump'; 

# 这里路径需要小心,后面像别名一样的东东需要换行的

# Public Frameworks
dump_frameworks('/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk/System/Library/Frameworks',
'Frameworks');

# Private Frameworks
dump_frameworks('/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS7.1.sdk/System/Library/PrivateFrameworks',
'PrivateFrameworks');

sub dump_frameworks
{
  my($dir, $subdir) = @_;

  opendir(my $dirh, $dir) or die "Could not opendir($dir) - $!";

  # Iterate through each framework found in the directory
  foreach my $file (grep { /\.framework$/ } readdir($dirh))
  {
    # Extract the framework name
    (my $fname = $file) =~ s/\.framework$//;
    print "Framework: $fname\n";

    my $headers_dir = "$HOME/Headers/$subdir/$fname";

    # Create the folder to store the headers
    mkpath($headers_dir);

    # Perform the class-dump
    my $cwd = cwd();
    chdir($headers_dir) or die "Could not chdir($headers_dir) - $!";

    system($CLASS_DUMP, '-H', "$dir/$file");
   
   if($? == -1)
    {
      die "Could not execute $CLASS_DUMP - $!\n";
    }
      
    chdir($cwd) or die "Could not chdir($cwd) - $!";
  }
}

  

 三、使用

$ class-dump -H xxx(打包好的文件) -o xxx.h

  

四、其他

  class-dump 作用的对象必须是未经过加密的可执行文件,而从 app store 下载的 app 都是经过签名加密的。 

 

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