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-   -   webrick-webdav gem: error in number of arguments to get_handler (http://www.velocityreviews.com/forums/t857871-webrick-webdav-gem-error-in-number-of-arguments-to-get_handler.html)

Matt Falkenhagen 06-04-2009 12:05 PM

webrick-webdav gem: error in number of arguments to get_handler
 
I am getting an error when I try to use a fresh install of the webrick-
webdav gem on ruby 1.8.7.

Specifically, if I run the following script to start a WEBrick server
and then send a request for any file (not directory), an
"ArgumentError: wrong number of arguments (2 for 1)" occurs.

$ cat webdav_startup.rb
#!/usr/bin/env ruby
# Adapted from http://gmarrone.objectblues.net/cgi-bin/wiki/WebDAV_-
# _Linux_server%2c_Mac_OS_X_client

require 'rubygems'
require 'webrick'
require 'webrick/httpservlet/webdavhandler'

log = WEBrick::Log.new
log.level = WEBrick::Log::DEBUG if $DEBUG
serv = WEBrick::HTTPServer.new({
:Port => 8079,
:FancyIndexing => true,
:Logger => log
})
serv.mount("/", WEBrick::HTTPServlet::WebDAVHandler, Dir.pwd,
{:FancyIndexing => true})
trap(:INT){ serv.shutdown }
serv.start
$ ./webdav_startup.rb
[2009-06-04 20:43:40] INFO WEBrick 1.3.1
[2009-06-04 20:43:40] INFO ruby 1.8.7 (2008-08-11) [i486-linux]
[2009-06-04 20:43:40] INFO WEBrick::HTTPServer#start: pid=18264
port=8079
[2009-06-04 20:44:06] ERROR ArgumentError: wrong number of arguments
(2 for 1)
/usr/lib/ruby/1.8/webrick/httpservlet/filehandler.rb:233:in
`get_handler'
/usr/lib/ruby/1.8/webrick/httpservlet/filehandler.rb:233:in
`exec_handler'
/usr/lib/ruby/1.8/webrick/httpservlet/filehandler.rb:171:in `do_GET'
[...]
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
./webdav_startup.rb:16
server - - [04/Jun/2009:20:44:06 JST] "GET /.vimrc HTTP/1.1" 500 336
- -> /.vimrc
server - - [04/Jun/2009:20:44:09 JST] "GET / HTTP/1.1" 200 4741
- -> /


In webrick-webdav.rb, changing
def get_handler(req)
to
def get_handler(req, res)

seems to make everything work fine.

What puzzles me is how this could have been possible. I suspect my
WEBrick version (and hence ruby version) and webrick-webdav gem
version are out of sync, as they disagree on the number of arguments
for get_handler, but at one time they did since people have used this
gem before. But you would then think that WEBrick at some point
changed the number of arguments to get_handler... yet some quick
searching yields no clues.

Any ideas what happened here? It would be nice to get the gem to work
out of the box or at least to document which versions of ruby it can
be expected to work for.

Thanks,
Matt



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