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:
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】
例如:
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
如下图:
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
Fillder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,如上图
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
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:
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:关注本公众号后发送文本 :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(别忘记了)
Enjoy!!!
其实在FiddlerScript里面还是能玩出很多花样的,只不过写扩展得用JScript.net(js+csharp的语法),什么语言不重要,重要的是实现了我想要的效果。
我是正东,学的越多不知道也越多。如果决定去深究一个东西, 一定要完全搞懂, 并认真总结一篇博客让以后能在短时间拾起来 ( 因为不搞懂你很难写一篇半年后还能理解的博客 )