WechatVideoSniffer微信视频号PC版视频地址嗅探器

开源地址 xuncv/WechatVideoSniffer: 微信视频号PC版视频地址嗅探器 (github.com)

原理

使用FiddlerCore .Net组件，注册系统代理，监听主机的http/https请求，从而匹配出微信视频号视频的地址

import win.ui;    
/*DSG{{*/    
mainForm = win.form(text="WechatVideoSniffer";right=959;bottom=591)    
mainForm.add(    
btnClear={cls="button";text="清空列表";left=797;top=540;right=889;bottom=580;z=5};    
btnDown={cls="button";text="下载选中";left=794;top=120;right=885;bottom=157;z=4};    
btnSniffer={cls="button";text="监听";left=794;top=14;right=885;bottom=51;z=1};    
btnStop={cls="button";text="停止";left=794;top=70;right=885;bottom=107;z=2};    
listview={cls="listview";left=17;top=15;right=787;bottom=584;edge=1;z=3}    
)    
/*}}*/    
import dotNet    
mainForm.listview.insertColumn( "URL",-1 )    
dotNet.reference({    
"FiddlerCore4" = $"res\FiddlerCore4.dll";    
"CertMaker" = $"res\CertMaker.dll";    
"BCMakeCert" = $"res\BCMakeCert.dll";    
"BasicFormatsForCore" = $"res\BasicFormatsForCore.dll"    
})    
var FiddlerCore4 = dotNet.load("FiddlerCore4")    
Fiddler = FiddlerCore4.import("Fiddler")    
InstallCertificate = function(){    
if(!Fiddler.CertMaker.rootCertExists()){    
if(!Fiddler.CertMaker.createRootCert()){    
return false;    
}    
if(Fiddler.CertMaker.trustRootCert()){    
return false;    
}    
}    
return true;    
}    
UninstallCertificate = function(){    
if(Fiddler.CertMaker.rootCertExists()){    
if(!Fiddler.CertMaker.removeFiddlerGeneratedCerts(true)){    
return false;    
}    
}    
return true;    
}    
AttachListening = function(){    
Fiddler.FiddlerApplication.BeforeRequest = function(s){    
s.bBufferResponse = false;    
if(string.startWith(s.fullUrl,"https://finder.video.qq.com/251/20302/")){    
mainForm.listview.addItem( {s.fullUrl} )    
}    
}    
/*    
Fiddler.FiddlerApplication.BeforeResponse = function(s){    
if(string.startWith(s.fullUrl,"https://finder.video.qq.com")){    
mainForm.listview.addItem( {s.fullUrl} )    
}    
}    
*/    
}    
StartupFiddlerCore = function(){    
Fiddler.FiddlerApplication.Startup(9898,Fiddler.FiddlerCoreStartupFlags.Default | Fiddler.FiddlerCoreStartupFlags.RegisterAsSystemProxy)    
}    
UninstallFiddler = function(){    
if(Fiddler.FiddlerApplication.IsStarted()){    
Fiddler.FiddlerApplication.Shutdown();    
}    
}    
mainForm.btnSniffer.oncommand = function(id,event){    
InstallCertificate()    
AttachListening()    
StartupFiddlerCore()    
mainForm.btnSniffer.disabled = true    
}    
mainForm.btnStop.oncommand = function(id,event){    
UninstallCertificate()    
UninstallFiddler()    
mainForm.btnSniffer.disabled = false    
}    
mainForm.btnClear.oncommand = function(id,event){    
mainForm.listview.clear()    
}    
mainForm.btnDown.oncommand = function(id,event){    
var index = mainForm.listview.selIndex    
if(index>0){    
var url = mainForm.listview.getItemText(index,1,1024)    
mainForm.btnDown.text = "下载中"    
mainForm.btnDown.disabled = true    
thread.invokeAndWait(    
function(url){    
import inet.httpFile    
math.randomize()    
var remoteFile = inet.httpFile( url,"/download/" + string.random(6) + ".mp4" )    
remoteFile.test()    
remoteFile.download()    
remoteFile.close()    
},url    
)    
mainForm.msgbox("下载完成")    
mainForm.btnDown.text = "下载选中"    
mainForm.btnDown.disabled = false    
}    
}    
mainForm.onClose = function(hwnd,message,wParam,lParam){    
//UninstallCertificate()    
UninstallFiddler()    
}    
mainForm.show();    
return win.loopMessage();