. Net prevents leeching and thunder

. Net prevents leeching and thunder

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. Net prevents leeching and thunder

This program needs to have its own server or be able to operate IIS's ISAPI extension

The method I use is to access context. Request. urlreferrer. Host; that is, what is the last link to access this website?

Whether the website host can be downloaded. If yes, if not, the website host can be downloaded!

New cehandler class inherits the ihttphandler interface implementation Interface Method

CSHARP code

1. Public class cehandler: ihttphandler
2. {
3. # Region ihttphandler
   Employee
5. Public bool isreusable
6. {
7. Get {return true ;}
8. }
10. Public void processrequest (httpcontext context)
11. {
12. String my = string. empty;
13. My = "jeanwen.com ";
14. String host = string. empty;
16. Try
17. {
18. Host = context. Request. urlreferrer. Host;
19. }
20. Catch (exception E)
21. {
22. Context. response. End ();
23. }
25. Int XT = host. indexof (my );
26. If (XT> = 0)
27. {
28. String url = context. Request. url. tostring ();
29. Context. response. Clear ();
31. Url = URL. Replace ("http ://","");
32. Int x = URL. indexof ("/");
35. If (x> 0)
36. {
37. Url = URL. substring (x + 1 );
38. String filepath = context. server. mappath ("~ /") + URL;
40. Fileinfo file = new system. Io. fileinfo (filepath );
42. Context. response. addheader ("content-disposition", "filename =" + file. Name );
43. Context. response. addheader ("Content-Length", file. length. tostring ());
45. Context. response. contenttype = "application/octet-stream ";
46. Context. response. writefile (file. fullname );
48. }
49. Context. response. End ();
50. }
51. Else
52. {
53. Context. response. End ();
54. }
55. }
57. # Endregion
58. }

Public class cehandler: ihttphandler {# region ihttphandler member public bool isreusable {get {return true ;}} public void processrequest (httpcontext context) {string my = string. empty; my = "jeanwen.com"; string host = string. empty; try {Host = context. request. urlreferrer. host;} catch (exception e) {context. response. end ();} int XT = host. indexof (my); If (XT> = 0) {string url = context. request. URL. tostring (); context. response. clear (); url = URL. replace ("http: //", ""); int x = URL. indexof ("/"); If (x> 0) {url = URL. substring (x + 1); string filepath = context. server. mappath ("~ /") + URL; fileinfo file = new system. io. fileinfo (filepath); context. response. addheader ("content-disposition", "filename =" + file. name); context. response. addheader ("Content-Length", file. length. tostring (); context. response. contenttype = "application/octet-stream"; context. response. writefile (file. fullname);} context. response. end ();} else {context. response. end () ;}# endregion}

Add webconfig. config

XML Code

1. <Httphandlers>
2. <Add verb = "*" Path = "*. rar" type = "mychy. Soft. cehandler, mychy. Soft"/>
3. <Add verb = "*" Path = "*. Zip" type = "mychy. Soft. cehandler, mychy. Soft"/>
4. </Httphandlers>

  
IIS settings

Click Configuration

Click Add
Executable File: C: \ WINDOWS \ microsoft.net \ framework \ v2.0.50727 \ aspnet_isapi.dll