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Serving WAP Documents
WAP (Wireless Application Protocol) is a protocol that allows wireless devices access to information and
services over the Internet. WAP makes it possible to deliver Web content
through a WAP gateway server directly to a wireless Web-enabled device. By
using already existing Internet technology such as XML and IP, WAP allows
access to Internet content and services to wireless clients. With WAP,
clients can obtain Internet content and services through devices such as,
mobile phones, PDAs, pagers, two-way radios, smart phones, communicators,
and terminals. The protocol is developed by
WAP Forum,
an organization of some of the most powerful Internet
and telecom companies.
Configuration
It is quite easy to enable a Virtual Server web server to serve
WAP (Wireless Application Protocol) documents. The gateway is usually on the cellular
network, so all your Apache Web Server needs are the correct
MIME Types.
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Connect to your Virtual Server via
Telnet or SSH
and use an online editor, like pico, to open your web server
configuration file (~/www/conf/httpd.conf). Or, download your
web server configuration file via FTP, making sure to download (and
upload) in ASCII format. Then make the following additions to the
configuration file.
AddType text/vnd.wap.wml .wml
AddType image/vnd.wap.wbmp .wbmp
AddType application/vnd.wap.wmlc .wmlc
AddType text/vnd.wap.wmlscript .wmls
AddType application/vnd.wap.wmlscriptc .wmlsc
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You might also want to add index.wml to the DirectoryIndex
directive, like this:
DirectoryIndex index.wml index.html
Testing
Create a ~/www/htdocs/hello.wml test file to verify that you've set things up right.
The following sample code show how to create two sample cards using
Wireless Markup Language (.wml).
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="My Wap Page">
<p>Hello world - this is my first wap card!</p>
<p><a href="#card2">Go to the second card</a></p>
</card>
<card id="card2" title="Second Card">
<p>This is my second wap card!</p>
<p><a href="#card1">Go back to the first card</a></p>
</card>
</wml>
When you develop WML pages, you should always check the page in one of
the SDKs available.
In order to view your new WAP document, you need a WAP-enabled cell phone or a WAP emulator. There
are many WAP emulators available, including these:
More Information
For more information and resources see the following.
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