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Fiddler抓包一键生成代码
source link: https://www.cnblogs.com/yudongdong/p/15418181.html
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首先我们的需求场景是
用Fiddler抓到某个接口调用后，用代码来模拟调用，一般我们写代码会有3个步骤：
- 1设置http请求相关的参数:header,method,url,cookie等
- 2设置post的body(如果是post的话需要)
- 3拿到返回的body(一般我们需要拿到接口的返回体进行解析)
假如这3个步骤的代码全部都能一键生成那该多爽，我终于站在巨人的肩膀上搞定了！
搞定的效果如下图：
image上面是对于csharp 采用自带的 HttpClient的代码生成演示，还可以针对java kotlin,python,nodejs等
本篇的主要功能都是在FiddlerScript里面完成，主要包含3块扩展
- 增加自定义右键菜单
- 增加控制开关
- 代码获取请求上下文并导出har
- 使用脚本完成process的封装并调用
1. 增加右键菜单
点中某个Session然后点击右键菜单，选择生成指定语言的代码，这样使用起来最方便，如下图： 
新增右键菜单的扩展方式是 【一个ContextAction+一个function】
public static ContextAction("C#-httpclient", "生成代码")
function do1(arrSess: Session[]) { doStar(arrSess, "csharp","httpclient"); }
代表新增一个 一级菜单叫 生成代码，二级菜单叫 "C#-httpclient"
下面的function就是点击需要响应的方法实现，默认是Session数组，因为可以选择多个。
2. 控制开关
前面说有3个步骤，除了第一个步骤是核心的，其他2个步骤都是将json转为实体类定义，是辅助的。所以都设置开关可以人为控制要不要生成这2块的代码
image
新增开关的方式是定义【一个RulesOption+一个对应接收的变量】
public static RulesOption("关闭请求体转代码", "生成代码")
var m_DisableReuqest: boolean = false;
代表新增一个 以及菜单叫生成代码,二级菜单叫 "关闭请求体转代码",类型是bool，因为下面对应接收的变量是布尔类型！
3. 通过选中Session拿到整个请求的上下文
上下文包括，请求的各种参数，比如url，header，method，request，response等
imageFillder有一个api可以导出har文件，这个har格式是谷歌提出来的一个用来描述一个请求的标准定义
关于har格式的详细文档： http://groups.google.com/group/http-archive-specification/
那如何在Fiddler里面将Session导出har呢
image
image
image那用代码如何导出呢？
//这种方式为导出到变量 注意是Fiddler 4.6.2.0版本之后支持的
var oExportOptions = FiddlerObject.createDictionary();
oExportOptions.Add(“ExportToString”, “true”);
FiddlerApplication.DoExport("HTTPArchive v1.2", oSessions,oExportOptions, null);
//这个就是了
var sOutput: String = oExportOptions[“OutputAsString”];
//这种方式为导出到指定路径
var oExportOptions = FiddlerObject.createDictionary();
oExportOptions.Add("Filename", "对应的路径");
FiddlerApplication.DoExport("HTTPArchive v1.2", oSessions,oExportOptions, null);
这里我采用了第二种方式，先把选中的Session导出一个har文件，然后将这个har文件作为下一个process的入参，得到我想要结果！
下面隆重介绍根据har来生成请求代码的工具：httpsnippet
开源地址：https://github.com/Kong/httpsnippet
Kong的话有个很有有名的网关想必大家都听说过！
这里我已经把这个程序包装成在windows系统可以独立运行的exe了，可以在文章末尾获取下载链接。
这里我稍微改造了一下代码，把har文件的requestBody和responseBody也提取出来，为了是生成对应的POJO代码做入参.
将json生成实体类POJO这里用了另外一个工具：quicktype
开源地址：https://github.com/quicktype/quicktype
也包装成在windows系统可以独立运行的exe了。
好了，组装一起：
- 先通过代码生成har文件
- 然后用httpsnippet生成指定语言的代码，并导出har中的requestBody和responseBody
- 分别将requestBody和responseBody作为参数让quicktype生成实体类代码
整个的完整代码如下，按照如下步骤copy到fiddler的脚本编辑器中即可：
首先打开脚本编辑器：
image随便找到一个空白的地方，然后把下面的代码复制进去：
public static RulesOption("关闭请求体转代码", "生成代码")
var m_DisableReuqest: boolean = false;
public static RulesOption("关闭返回体转代码", "生成代码")
var m_DisableResponse: boolean = false;
public static ContextAction("C#-httpclient", "生成代码")
function do1(arrSess: Session[]) { doStar(arrSess, "csharp","httpclient"); }
public static ContextAction("C#-restsharp", "生成代码")
function do2(arrSess: Session[]) { doStar(arrSess, "csharp","restsharp"); }
public static ContextAction("Java-okhttp", "生成代码")
function do3(arrSess: Session[]) { doStar(arrSess, "java","okhttp"); }
public static ContextAction("Java-asynchttp", "生成代码")
function do4(arrSess: Session[]) { doStar(arrSess, "java","asynchttp"); }
public static ContextAction("Java-nethttp", "生成代码")
function do5(arrSess: Session[]) { doStar(arrSess, "java","nethttp"); }
public static ContextAction("Java-unirest", "生成代码")
function do6(arrSess: Session[]) { doStar(arrSess, "java","unirest"); }
public static ContextAction("Kotlin-okhttp", "生成代码")
function do7(arrSess: Session[]) { doStar(arrSess, "kotlin","okhttp"); }
public static ContextAction("JavaScript-xhr", "生成代码")
function do8(arrSess: Session[]) { doStar(arrSess, "javascript","xhr"); }
public static ContextAction("JavaScript-jquery", "生成代码")
function do9(arrSess: Session[]) { doStar(arrSess, "javascript","jquery"); }
public static ContextAction("JavaScript-fetch", "生成代码")
function do10(arrSess: Session[]) { doStar(arrSess, "javascript","fetch"); }
public static ContextAction("JavaScript-axios", "生成代码")
function do11(arrSess: Session[]) { doStar(arrSess, "javascript","axios"); }
public static ContextAction("Node-native", "生成代码")
function do12(arrSess: Session[]) { doStar(arrSess, "node","native"); }
public static ContextAction("Node-request", "生成代码")
function do13(arrSess: Session[]) { doStar(arrSess, "node","request"); }
public static ContextAction("Node-fetch", "生成代码")
function do14(arrSess: Session[]) { doStar(arrSess, "node","fetch"); }
public static ContextAction("Node-axios", "生成代码")
function do15(arrSess: Session[]) { doStar(arrSess, "node","axios"); }
public static ContextAction("Node-unirest", "生成代码")
function do16(arrSess: Session[]) { doStar(arrSess, "node","unirest"); }
public static ContextAction("Python3-http.client", "生成代码")
function do17(arrSess: Session[]) { doStar(arrSess, "python","python3"); }
public static ContextAction("Python-requests", "生成代码")
function do18(arrSess: Session[]) { doStar(arrSess, "python","requests"); }
public static ContextAction("ObjectiveC-nsurlsession", "生成代码")
function do19(arrSess: Session[]) { doStar(arrSess, "objc","nsurlsession"); }
public static ContextAction("Ruby-net::http", "生成代码")
function do20(arrSess: Session[]) { doStar(arrSess, "ruby","native"); }
public static ContextAction("Swift-nsurlsession", "生成代码")
function do21(arrSess: Session[]) { doStar(arrSess, "swift","nsurlsession"); }
public static ContextAction("powershell-webrequest", "生成代码")
function do22(arrSess: Session[]) { doStar(arrSess, "powershell","webrequest"); }
public static ContextAction("powershell-restmethod", "生成代码")
function do23(arrSess: Session[]) { doStar(arrSess, "powershell","restmethod"); }
public static ContextAction("Shell-curl", "生成代码")
function do24(arrSess: Session[]) { doStar(arrSess, "shell","curl"); }
public static ContextAction("Shell-httpie", "生成代码")
function do25(arrSess: Session[]) { doStar(arrSess, "shell","httpie"); }
public static ContextAction("Shell-wget", "生成代码")
function do26(arrSess: Session[]) { doStar(arrSess, "shell","wget"); }
public static ContextAction("Go-NewRequest", "生成代码")
function do27(arrSess: Session[]) { doStar(arrSess, "go","native"); }
public static ContextAction("Clojure-clj_http", "生成代码")
function do28(arrSess: Session[]) { doStar(arrSess, "clojure","clj_http"); }
public static ContextAction("C-Libcurl", "生成代码")
function do29(arrSess: Session[]) { doStar(arrSess, "c","libcurl"); }
public static ContextAction("PHP-curl", "生成代码")
function do30(arrSess: Session[]) { doStar(arrSess, "php","curl"); }
public static ContextAction("PHP-http1", "生成代码")
function do31(arrSess: Session[]) { doStar(arrSess, "php","http1"); }
public static ContextAction("PHP-http2", "生成代码")
function do32(arrSess: Session[]) { doStar(arrSess, "php","http2"); }
public static function doStar(oSessions: Session[], target: String,client:String) {
//注意看这里，请下载我给的这2个exe并替换成你电脑中正确的目录
var httpsnippet = "E:\\workspace\\github\\test\\httpsnippet.exe";
var quicktype = "E:\\workspace\\github\\test\\quicktype.exe";
var oExportOptions = FiddlerObject.createDictionary();
var tempPath2 = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler.har");
if(System.IO.File.Exists(tempPath2)){
System.IO.File.Delete(tempPath2);
}
var tempPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler.json");
if(System.IO.File.Exists(tempPath)){
System.IO.File.Delete(tempPath);
}
var tempRequestBodyPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler_requestBody.json");
if(System.IO.File.Exists(tempRequestBodyPath)){
System.IO.File.Delete(tempRequestBodyPath);
}
var tempResponseBodyPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler_responseBody.json");
if(System.IO.File.Exists(tempResponseBodyPath)){
System.IO.File.Delete(tempResponseBodyPath);
}
oExportOptions.Add("Filename", tempPath2);
FiddlerApplication.DoExport("HTTPArchive v1.2", oSessions,oExportOptions, null);
System.IO.File.Move(tempPath2, tempPath);
if(!System.IO.File.Exists(tempPath)){
MessageBox.Show("生成代码失败", "No action");
return;
}
var rtPath = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler_rt");
if(System.IO.Directory.Exists(rtPath))System.IO.Directory.Delete(rtPath,true);
if(!doProcess(httpsnippet, "\""+tempPath+"\" -t "+target+" -c "+client+" -o " + "\""+rtPath+"\"")){
MessageBox.Show("生成代码错误", "No action");
return;
}
var file = System.IO.Directory.GetFiles(rtPath);
if(file.Length!=1){
MessageBox.Show("生成代码错误", "No action");
return;
}
var json = System.IO.File.ReadAllText(file[0]);
System.IO.File.Delete(file[0]);
var rtPath1 = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler_request_body");
if(System.IO.File.Exists(rtPath1))System.IO.File.Delete(rtPath1);
if(!m_DisableReuqest && System.IO.File.Exists(tempRequestBodyPath)){
json += getJsonCode(quicktype,tempRequestBodyPath,rtPath,rtPath1,target,"FiddlerRequest");
}
rtPath1 = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "fiddler_response_body");
if(System.IO.File.Exists(rtPath1))System.IO.File.Delete(rtPath1);
if(!m_DisableResponse && System.IO.File.Exists(tempResponseBodyPath)){
json += getJsonCode(quicktype,tempResponseBodyPath,rtPath,rtPath1,target, "FiddlerReponse");
}
Clipboard.SetText(json);
MessageBox.Show("代码生成成功,已复制到剪贴板");
}
static function getJsonCode(file: String,tempRequestBodyPath:String,rtPath:String,rtPath1:String,target:String,type:String): String {
var json = "";
var tmp1 = "";
if(target == 'csharp'){
tmp1 = "--quiet --telemetry disable --features just-types --array-type list --no-check-required --namespace \"Fiddlers\" --lang \"" + target + "\" --top-level \""+type+"Model\" \"" + tempRequestBodyPath + "\"" +" -o " + "\""+rtPath1+"\"";
}
else if(target == 'kotlin'){
tmp1 = "--quiet --telemetry disable --framework just-types --lang \"" + target + "\" --top-level \""+type+"Model\" \"" + tempRequestBodyPath + "\"" +" -o " + "\""+rtPath1+"\"";
}
else if(target == 'java'){
tmp1 = "--quiet --telemetry disable --array-type list --just-types --package \"Fiddlers\" --lang \"" + target + "\" --top-level \""+type+"Model\" \"" + tempRequestBodyPath + "\"" +" -o " + "\""+rtPath+"\\test"+"\"";
}
else {
tmp1 = "--telemetry disable --just-types --lang \"" + target + "\" --top-level \""+type+"Models\" \"" + tempRequestBodyPath + "\"" +" -o " + "\""+rtPath1+"\"";
}
doProcess(file, tmp1)
if(System.IO.File.Exists(rtPath1)){
json += "\r\n//"+type+"-POJO\r\n" + System.IO.File.ReadAllText(rtPath1).Replace("package quicktype","");
}
if(target == 'java'){
var javaFiles = System.IO.Directory.GetFiles(rtPath,"*.java");
if(javaFiles.Length>0){
json += "\r\n//"+type+"-POJO\r\n" ;
for (var i:int = 0; i<javaFiles.Length; i++)
{
json += System.IO.File.ReadAllText(javaFiles[i]).Replace("package Fiddlers;","")
System.IO.File.Delete(javaFiles[i]);
}
}
}
return json;
}
static function doProcess(file: String,paramsList:String): Boolean {
var process = new System.Diagnostics.Process();
process.StartInfo.FileName = file;
process.StartInfo.Arguments = paramsList;
process.StartInfo.CreateNoWindow = true;
process.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
process.StartInfo.UseShellExecute = false;
process.StartInfo.Verb = "runas";
process.StartInfo.RedirectStandardError = true;
process.StartInfo.RedirectStandardOutput = true;
process.Start();
process.WaitForExit();
process.Dispose();
return true;
}
然后下载：httpsnippet和quicktype这2个可执行文件。获取下载地址的方法：关注文末公众号后发送文本 ：Fiddler ，会告诉你百度网盘链接！
下载zip包后然后把这2个文件解压到你的电脑的某个目录。
在回到脚本中找到 doStar 方法中修改成正确的目录。
Enjoy！！！
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