如何从命令行启动 fiddler 作为 https 代理？

Question

我需要自动启动 fiddler 来解析 https 请求。

如何强制提琴手在没有 GUI 的情况下生成和使用 ssl 证书？有谁知道 fiddler 在哪里存储其证书？我可以生成自己的服务器证书并将其设置为没有 GUI 的 fiddler 吗？

我可以在退出模式下启动提琴手。我可以通过注册表项启用 https，但 fiddler 启动时没有 ssl 证书。我可以使用 makecert.exe 创建证书，但我不知道如何将其设置为没有 UI 的 fiddler 的活动证书。

如果有人帮助我解决它，我会非常感激。

Answer 1

没有人帮助我，但我找到了解决方案。

解决方案：

要启用捕获 https 流量更新寄存器的值：

reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v CaptureCONNECT /t REG_SZ /d True /f
reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v CaptureHTTPS /t REG_SZ /d True /f
reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v IgnoreServerCertErrors /t REG_SZ /d True /f

reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v CaptureCONNECT /t REG_SZ /d True /f
reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v CaptureHTTPS /t REG_SZ /d True /f
reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v IgnoreServerCertErrors /t REG_SZ /d True /f

您需要使用自定义提琴手的脚本。它强制 fiddler 生成 ssl 证书（请参阅下面脚本 CustomRules.js 中的主要部分）。如果您不添加它，fiddler 将在没有 ssl 证书的情况下启动。

copy /Y /V "<path to file>\CustomRules.js" "%userprofile%\Documents\Fiddler2\Scripts\CustomRules.js"

注意：不要更改目标文件名。

当 fiddler 启动时自动附加到套接字 127.0.0.1:8888

start "" "%programfiles(x86)%\fiddler2\fiddler.exe" -quiet

fiddler 会自动创建一个新的 ssl 证书。它可以下载：

curl.exe -s -k -o <dst file path> "http://127.0.0.1:8888/FiddlerRoot.cer"

然后你需要把它添加到 Trusted Root Certificates

certutil -addstore -f "Root" <path to certificate>

现在 fiddelr 已启动并且可以使用 CustomRules.js 捕获 https 流量。

提琴手.bat：

@ECHO OFF

set currentDir=%~dp0
cd "%currentDir%"

set log="%currentDir%\fiddler.log"
set fiddler_custom_script_dir="%userprofile%\Documents\Fiddler2\Scripts\"
set fiddler_result_dir="C:\fiddler\"

echo "Start Fiddler Script" > "%log%"
echo "Current Dir: %currentDir%" >> "%log%"
echo "Update values in the register" >> "%log%"
reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v CaptureCONNECT /t REG_SZ /d True /f >> "%log%"
reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v CaptureHTTPS /t REG_SZ /d True /f >> "%log%"
reg.exe add "HKEY_LOCAL_MACHINE\Software\Microsoft\Fiddler2" /v IgnoreServerCertErrors /t REG_SZ /d True /f >> "%log%"

reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v CaptureCONNECT /t REG_SZ /d True /f >> "%log%"
reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v CaptureHTTPS /t REG_SZ /d True /f >> "%log%"
reg.exe add "HKEY_CURRENT_USER\Software\Microsoft\Fiddler2" /v IgnoreServerCertErrors /t REG_SZ /d True /f >> "%log%"

echo "Create folder for results: %fiddler_result_dir%" >> "%log%"
mkdir "%fiddler_result_dir%" >> "%log%"

echo "Create folder for the custom fiddler's script: %fiddler_custom_script_dir%" >> "%log%"
mkdir "%fiddler_custom_script_dir%" >> "%log%"

echo "Copy fiddler script to  %fiddler_custom_script_dir%" >> "%log%"
copy /Y /V "%currentDir%\CustomRules.js" "%fiddler_custom_script_dir%\CustomRules.js" >> "%log%"

echo "Start fiddler" >> "%log%"
start "" "%programfiles(x86)%\fiddler2\fiddler.exe" -quiet

set cert_path="%currentDir%\FiddlerRoot.cer"
set /a attempt=0

timeout 10 > nul

:get_cert
    set /a attempt+=1
    timeout 1 > nul
    echo "Attempt #%attempt% to download fiddeler's certificate" >> "%log%"
    curl.exe -s -k -o "%cert_path%" "http://127.0.0.1:8888/FiddlerRoot.cer" >> "%log%"
if not exist "%cert_path%" if %attempt% LSS 300 goto get_cert

if not exist "%cert_path%" (
    echo "FAIL. Certificate "%cert_path%" doesn't exist. Cannot set trusted certificate"  >> "%log%"
    exit /b -100
)

set /a attempt=0
echo "Try to add certificate to trusted" >> "%log%"
echo certutil -addstore -f "Root" %cert_path% >> "%log%"
:import_cert
    set /a attempt+=1
    timeout 1 > nul
    echo "Attempt #%attempt% to download fiddeler's certificate" >> "%log%"
    certutil -addstore -f "Root" %cert_path% >> "%log%"
if "%errorlevel%" LSS 0 if %attempt% LSS 3 goto import_cert

echo "End..." >> "%log%"
exit /b 0

自定义规则.js

import System;
import System.Windows.Forms;
import Fiddler;

/**
 This script must be in the folder C:\Users\<USER>\Documents\Fiddler2\Scripts\CustomRules.js
 */
class Handlers
{
    // The Main() function runs everytime your FiddlerScript compiles
    static function Main() {
        var today: Date = new Date();
        FiddlerObject.StatusText = " CustomRules.js was loaded at: " + today;
        CertMaker.createRootCert();
        //CertMaker.GetRootCertificate().GetPublicKeyString()
    }
}