Two simple methods to automatically convert Simplified Chinese web pages to traditional Chinese web pages (the principle is very simple, and ihttphandler proxy/response. filter is not perfect)

I:

/*

A simple method to convert an "arbitrary" online Simplified Chinese webpage to a traditional Chinese webpage

I used to write in codebehind of aspx and use webrequest to capture others' webpages.

Using XMLHTTP object in ASP

1. Save microshaoft. httphandlers. CS to the IIS Site or \ bin \ microshaoft. httphandlers. CS in a virtual directory.

2. CSC/T: Library microshaoft. httphandlers. CS/R: C: \ winnt \ Microsoft. NET \ framework \ v1.1.4322 \ Microsoft. VisualBasic. dll

Generate \ bin \ microshaoft. httphandlers. dll under the IIS site or a virtual directory

3. IIS Site or web. config in a virtual directory:

<? XML version = "1.0" encoding = "UTF-8"?>

<Configuration>

<System. Web>

<Compilation defaultlanguage = "C #" DEBUG = "true"/>

<Httphandlers>

<Add verb = "*" Path = "Sina. aspx" type = "microshaoft. httphandlers. strconvhttphandler, microshaoft. httphandlers"/>

</Httphandlers>

</System. Web>

</Configuration>

4. Create a text file, rename it sina. aspx, and save it to the IIS site or a virtual directory.

5. Only get requests are considered here! For post requests, see:

Supplement the URL Spoofing with treasure! Processing of data submitted by post method!

Http://blog.csdn.net/playyuer/archive/2005/02/25/301895.aspx

6. For more information about ihttphandler interfaces, see:

MS-help: // Ms. netframeworksdkv1.1.chs/cpref/html/frlrfsystemwebihttphandlerclassprocessrequesttopic.htm

*/

Namespace microshaoft. httphandlers

{

Using system. IO;

Using system. net;

Using system. Web;

Using system. text;

Public class strconvhttphandler: ihttphandler

{

Static void main ()

{

Strconvhttphandler x = new strconvhttphandler ();

String S = "http://www.sina.com.cn ";

S = x. httpgetrequestreponse (s );

S = Microsoft. VisualBasic. Strings. strconv (S, Microsoft. VisualBasic. vbstrconv. traditionalchinese, system. Globalization. cultureinfo. currentculture. lcid );

// S = tcscconvert (s );

System. Console. writeline (s );

}

Public void processrequest (httpcontext context)

{

String S = context. Request. rawurl. tolower ();

// S = S. Replace ("http: // localhost: 8081", "http: // 210.72.237.99/both/1.2/blog/portal ");

S = "http: // 210.72.237.99/both/1.2/blog/portal/default. aspx ";

S = "http://www.sina.com.cn ";

S = This. httpgetrequestreponse (s );

S = Microsoft. VisualBasic. Strings. strconv (S, Microsoft. VisualBasic. vbstrconv. traditionalchinese, system. Globalization. cultureinfo. currentculture. lcid );

// S = tcscconvert (s );

Context. response. Write (s );

}

Public bool isreusable

{

Get

{

Return true;

}

}

Public String httpgetrequestreponse (string URL)

{

Httpwebrequest hwrq = (httpwebrequest) webrequest. Create (URL );

Httpwebresponse HWRP = (httpwebresponse) hwrq. getresponse ();

Stream S = HWRP. getresponsestream ();

Streamreader sr = new streamreader (S, this. getencoding (HWRP ));

String Ss = NULL;

String S;

While (S = Sr. Readline ())! = NULL)

{

SS + = S + "\ r \ n ";

}

S. Close ();

S = NULL;

Return SS;

}

Public encoding getencoding (httpwebresponse response)

{

String name = response. contentencoding;

Encoding code = encoding. default;

If (name = "")

{

String contenttype = response. contenttype;

If (contenttype. tolower (). indexof ("charset ")! =-1)

{

Name = contenttype. substring (contenttype. tolower (). indexof ("charset =") + "charset =". Length );

}

}

If (name! = "")

{

Try

{

Code = encoding. getencoding (name );

}

Catch {}

}

Return code;

}

// After testing, the effect of converting with COM word object is good, but it is slow!

// Private Static word. documentclass _ d;

Private Static string tcscconvert (string S)

{

If (S. length> 0)

{

// If (_ d = NULL)

//{

// _ D = new word. documentclass ();

//}

// _ D. content. Text = s;

// _ D. content. tcscconverter (

// Word. wdtcscconverterdirection. wdtcscconverterdiresctc,

// True,

// True

//);

// S = _ d. content. text;

}

Return S;

}

}

}

// ================================================ ====

II:

There are better methods for self-written ASP. NET pages:

Implement a class inherited from stream as the filter attribute of httpresponse:

Namespace microshaoft // (\ bin \ XXX. dll, which can also be directly stored in codebehind of page)

{

Using system;

Using system. text;

Using system. Text. regularexpressions;

Using system. IO;

Using system. Web;

Public class strconvfilter: Stream

{

Private stream _ sink;

Private long _ position;

Public strconvfilter (Stream sink)

{

_ Sink = sink;

}

Public override bool Canread

{

Get

{

Return true;

}

}

Public override bool canseek

{

Get

{

Return true;

}

}

Public override bool canwrite

{

Get

{

Return true;

}

}

Public override long length

{

Get

{

Return 0;

}

}

Public override long position

{

Get

{

Return _ position;

}

Set

{

_ Position = value;

}

}

Public override long seek (long offset, system. Io. seekorigin direction)

{

Return _ sink. Seek (offset, direction );

}

Public override void setlength (long length)

{

_ Sink. setlength (length );

}

Public override void close ()

{

_ Sink. Close ();

}

Public override void flush ()

{

_ Sink. Flush ();

}

Public override int read (byte [] buffer, int offset, int count)

{

Return _ sink. Read (buffer, offset, count );

}

Public override void write (byte [] buffer, int offset, int count)

{< br>
If (httpcontext. current. response. contenttype = "text/html")

{< br>
encoding E = encoding. getencoding (httpcontext. current. response. charset);
string S = E. getstring (buffer, offset, count);
S = Microsoft. visualBasic. strings. strconv (S, Microsoft. visualBasic. vbstrconv. traditionalchinese, system. globalization. cultureinfo. currentculture. lcid);
_ sink. write (E. getbytes (s), 0, E. getbytecount (s);

}< br>
else

{< br>
_ sink. write (buffer, offset, count );

}

then:
private void page_load (Object sender, system. eventargs E)
{
// place the user Code here to initialize the page
> This. response. filter = new microshaoft. strconvfilter (this. response. filter);

}