Getting html page fields with webrick

JK · Aug 22, 2003

Hi All,

I am playing with Webrick and I tried to change a little the example given
with the packet but when I fill a html form and send it the fields values
are empty (using GET method, Webrick doesn't accept POST method). How to
fix it?
Thank you!

jilani

#!/usr/local/bin/ruby
require 'webrick'
include WEBrick

s = HTTPServer.new

Port => 2000,

ocumentRoot => "/xitami/webpages")

class HelloServlet < HTTPServlet::AbstractServlet
def do_GET(req, res)
name = req['fname']
email = req['email']
st = "<HTML>Hello #{fname} -- #{email} </HTML>"
res['Content-Type'] = "text/html"
res.body = st
end
end
s.mount("/hello", HelloServlet)

# HTTPServer#mount_proc(path){|req, res| ...}
# You can mount also a block by `mount_proc'.
# This block is called when GET or POST.

s.mount_proc("/hello/again"){|req, res|
res.body = "<HTML>hello (again)</HTML>"
res['Content-Type'] = "text/html"
}

trap("INT"){ s.shutdown }
s.start

it gives only "hello -- " as answer.

ps.
When I run the servlet, I get a warning:
"WARN TCPServer Error: Address family not supported by protocol - socket
(2)"

Everything under Linux Slackware 9.0 and Ruby 1.8.0

Bermejo, Rodrigo · Aug 22, 2003

It seems to be a common problem.
check the thread 'Integrated webserver?"

I'd recommend to contact the author (???).

-ronnie.

il Fri, 22 Aug 2003 07:04:38 +0900, Joel VanderWerf
<[email protected]> ha scritto::

[2003-08-21 14:44:46] INFO WEBrick 1.3.1
[2003-08-21 14:44:46] INFO ruby 1.8.0 (2003-08-04) [i686-linux]
[2003-08-21 14:44:47] WARN TCPServer Error: Address family not
supported by protocol - socket(2)

Could it be because I'm trying to run it inside a 192.* network?

Click to expand...

dunno if it could possibly get confused, this it's working fine for
me:

require 'webrick'
include WEBrick

s = HTTPServer.new(

ort => 2000,

ocumentRoot => "/"
)

s.mount("/my", HTTPServlet::FileHandler, 'C:\pubs',true)

s.start

it seems that you could try passing
:BindAddress =>your_chosen_addr

possibly you have multiple net interface and this confuses the script?

or maybe you could contact the author to check if you discovered a bug

Hi All,

I am playing with Webrick and I tried to change a little the example
given with the packet but when I fill a html form and send it the
fields values are empty (using GET method, Webrick doesn't accept POST
method). How to fix it?
Thank you!

jilani

#!/usr/local/bin/ruby
require 'webrick'
include WEBrick

s = HTTPServer.newPort => 2000, ocumentRoot => "/xitami/webpages")

class HelloServlet < HTTPServlet::AbstractServlet
def do_GET(req, res)
name = req['fname']
email = req['email']
st = "<HTML>Hello #{fname} -- #{email} </HTML>"
res['Content-Type'] = "text/html"
res.body = st
end
end
s.mount("/hello", HelloServlet)

# HTTPServer#mount_proc(path){|req, res| ...}
# You can mount also a block by `mount_proc'.
# This block is called when GET or POST.

s.mount_proc("/hello/again"){|req, res|
res.body = "<HTML>hello (again)</HTML>"
res['Content-Type'] = "text/html"
}

trap("INT"){ s.shutdown }
s.start

it gives only "hello -- " as answer.

ps.
When I run the servlet, I get a warning:
"WARN TCPServer Error: Address family not supported by protocol -
socket (2)"

Everything under Linux Slackware 9.0 and Ruby 1.8.0

Carlos · Aug 22, 2003

I am playing with Webrick and I tried to change a little the example given

with the packet but when I fill a html form and send it the fields values
are empty (using GET method, Webrick doesn't accept POST method). How to

Webrick accepts POST method. Just define a method do_POST(req, res).

[...]

name = req['fname']

use req.query['fname'].

HTTPRequest#[] returns values from the request header. For example:

req['Connection'] # => keep-alive

The values you are searching are in the array returned by HTTPRequest#query.

GOTOU Yuuzou · Aug 22, 2003

Hi,

In message said:
I am playing with Webrick and I tried to change a little the example given
with the packet but when I fill a html form and send it the fields values
are empty (using GET method, Webrick doesn't accept POST method). How to
fix it?

HTTPRequest#query returns a Hash of parsed query.

def do_GET(req, res)
q = req.query
fname = q['fname']
email = q['email']
st = "<HTML>Hello #{fname} -- #{email} </HTML>"
res['Content-Type'] = "text/html"
res.body = st
end

In addition, do_POST should be defined for POST request.

JK · Aug 23, 2003

HTTPRequest#query returns a Hash of parsed query.

def do_GET(req, res)
q = req.query
fname = q['fname']
email = q['email']
st = "<HTML>Hello #{fname} -- #{email} </HTML>"
res['Content-Type'] = "text/html"
res.body = st
end

In addition, do_POST should be defined for POST request.

That's ok thank you.
Well, now instead of having the output of results (server side) to
"$stderr" I want to have it in a "log_file". How to initialize the BasicLog
class?

jilani

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Getting html page fields with webrick

JK

Bermejo, Rodrigo

Carlos

GOTOU Yuuzou

JK

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