mcs/class/System.Web/System.Web.Handlers/TraceHandler.cs

   1 //
   2 // System.Web.Handlers.TraceHandler
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   6 //      Jackson Harper (jackson@ximian.com)
   7 //
   8 // (C) 2002 Ximian, Inc (http://www.ximian.com)
   9 // (C) 2004 Novell, Inc (http://www.novell.com)
  10 //
  11
  12 //
  13 // Permission is hereby granted, free of charge, to any person obtaining
  14 // a copy of this software and associated documentation files (the
  15 // "Software"), to deal in the Software without restriction, including
  16 // without limitation the rights to use, copy, modify, merge, publish,
  17 // distribute, sublicense, and/or sell copies of the Software, and to
  18 // permit persons to whom the Software is furnished to do so, subject to
  19 // the following conditions:
  20 //
  21 // The above copyright notice and this permission notice shall be
  22 // included in all copies or substantial portions of the Software.
  23 //
  24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  25 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  26 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  27 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  28 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  29 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  30 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  31 //
  32
  33 using System.Collections;
  34 using System.Data;
  35 using System.Web;
  36 using System.Web.Util;
  37 using System.Web.UI;
  38 using System.Web.UI.WebControls;
  39
  40 namespace System.Web.Handlers
  41 {
  42         public class TraceHandler : IHttpHandler
  43         {
  44                 void IHttpHandler.ProcessRequest (HttpContext context)
  45                 {
  46                         TraceManager manager = HttpRuntime.TraceManager;
  47
  48                         if (manager.LocalOnly && !context.Request.IsLocal) {
  49                                 // Need to figure out the error message that goes here
  50                                 // but I only have cassini for testing
  51                                 return;
  52                         }
  53
  54                         HtmlTextWriter output = new HtmlTextWriter (context.Response.Output);
  55
  56                         if (context.Request.QueryString ["clear"] != null)
  57                                 manager.Clear ();
  58
  59                         string id_str = context.Request.QueryString ["id"];
  60                         int id = -1;
  61                         if (id_str != null)
  62                                 id = Int32.Parse (id_str);
  63
  64                         if (id > 0 && id <= manager.ItemCount) {
  65                                 RenderItem (manager, output, id);
  66                         } else {
  67                                 string dir = context.Server.MapPath (UrlUtils.GetDirectory (context.Request.FilePath));
  68                                 RenderMenu (manager, output, dir);
  69                         }
  70
  71                 }
  72
  73                 bool IHttpHandler.IsReusable
  74                 {
  75                         get {
  76                                 return false;
  77                         }
  78                 }
  79
  80                 private void RenderMenu (TraceManager manager, HtmlTextWriter output, string dir)
  81                 {
  82
  83                         output.RenderBeginTag (HtmlTextWriterTag.Html);
  84
  85                         output.RenderBeginTag (HtmlTextWriterTag.Head);
  86                         TraceData.RenderStyleSheet (output);
  87                         output.RenderEndTag ();
  88
  89                         RenderHeader (output, dir);
  90
  91                         output.RenderBeginTag (HtmlTextWriterTag.Body);
  92                         output.AddAttribute ("class", "tracecontent");
  93                         output.RenderBeginTag (HtmlTextWriterTag.Span);
  94
  95                         Table table = TraceData.CreateTable ();
  96
  97                         table.Rows.Add (TraceData.AltRow ("Requests to the Application"));
  98                         table.Rows.Add (TraceData.SubHeadRow ("No", "Time of Request",
  99                                                         "File", "Status Code", "Verb", "&nbsp;"));
 100
 101                         if (manager.TraceData != null) {
 102                                 for (int i=0; i<manager.ItemCount; i++) {
 103                                         int item = i + 1;
 104                                         TraceData d = manager.TraceData [i];
 105                                         TraceData.RenderAltRow (table, i, item.ToString (), d.RequestTime.ToString (),
 106                                                         d.RequestPath, d.StatusCode.ToString (), d.RequestType,
 107                                                         "<a href=\"Trace.axd?id=" + item + "\" class=\"tinylink\">" +
 108                                                         "<b><nobr>View Details</a>");
 109                                 }
 110                                 table.RenderControl (output);
 111                         }
 112
 113                         output.RenderEndTag ();
 114                         output.RenderEndTag ();
 115
 116                         output.RenderEndTag ();
 117                 }
 118
 119                 private void RenderHeader (HtmlTextWriter output, string dir)
 120                 {
 121                         Table table = TraceData.CreateTable ();
 122                         TableRow row1 = new TableRow ();
 123                         TableRow row2 = new TableRow ();
 124                         TableCell cell1 = new TableCell ();
 125                         TableCell cell2 = new TableCell ();
 126                         TableCell cell3 = new TableCell ();
 127                         TableCell cell4 = new TableCell ();
 128
 129                         cell1.Text = "<h1>Application Trace</h1>";
 130                         cell2.Text = "[ <a href=\"Trace.axd?clear=1\" class=\"link\">clear current trace</a> ]";
 131
 132                         cell2.HorizontalAlign = HorizontalAlign.Right;
 133                         cell2.VerticalAlign = VerticalAlign.Bottom;
 134
 135                         row1.Cells.Add (cell1);
 136                         row1.Cells.Add (cell2);
 137
 138                         cell3.Text = "<h2><h2><p>"; // ummm, WTF?
 139                         cell4.Text = "<b>Physical Directory:</b>" + dir;
 140
 141                         row2.Cells.Add (cell3);
 142                         row2.Cells.Add (cell4);
 143
 144                         table.Rows.Add (row1);
 145                         table.Rows.Add (row2);
 146
 147                         table.RenderControl (output);
 148                 }
 149
 150                 private void RenderItem (TraceManager manager, HtmlTextWriter output, int item)
 151                 {
 152                         manager.TraceData [item - 1].Render (output);
 153                 }
 154
 155                 [MonoTODO ("Appears in class status, but...")]
 156                 protected void ShowDetails (DataSet data)
 157                 {
 158                 }
 159
 160                 [MonoTODO ("Appears in class status, but...")]
 161                 protected void ShowRequests (ArrayList list)
 162                 {
 163                 }
 164         }
 165 }
 166