Bug #1699: URI::FTP to_s problem after modification

• Status: Closed
• Assignee: akira (akira yamada)
• Target version: 1.9.2
• ruby -v: ruby 1.9.2dev (2009-06-29 trunk 23886)

[mizyo (Norihisa Fujita)]

=begin
After modification URI::FTP object by +, a slash is missing after host.
ruby 1.8.7 also has this problem, but 1.8.6 does not.

I think we should use self.path instead of @path in to_s. (please see attached patch)

Reproduction code is:
require 'uri'
uri = 'ftp://host/path'
puts URI.parse(uri) #=> ftp://host/path
puts URI.parse(uri) + './foobar' #=> ftp://hostfoobar
=end

[yugui (Yuki Sonoda)]

• Status changed from Open to Assigned
• Assignee set to akira (akira yamada)
• Target version set to 1.9.2

=begin

=end

[naruse (Yui NARUSE)]

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This is derived from the spec level bug of "ftp" URI scheme and uri/ftp lib.

http://tools.ietf.org/html/rfc1738
http://tools.ietf.org/html/rfc1808
http://tools.ietf.org/html/draft-hoffman-ftp-uri-04
http://lists.w3.org/Archives/Public/public-iri/2010Jan/0002.html
=end

[mame (Yusuke Endoh)]

=begin
Hi,

This is derived from the spec level bug of "ftp" URI scheme and uri/ftp lib.

Even so, the reported behavior is absolutely wrong.

Indeed, the spec seems to be bizarre. And, to conform the
bizarre spec, URI was modified by defining URI::FTP#path
(at r9028).

I agree with the purpose of the fix, but the way of the fix
is incomplete and wrong.

URI::FTP#path removes preceding '/' and decodes preceding
'%2F' to '/'. If it does so, URI::FTP#set_path MUST be
defined and do the opposite.

I'll soon commit my patch which is approved by naruse.
I confirmed that make test, test-all and test-rubyspec are
passed.

BTW, the fix I mentioned above was commited at r9028.
Its commit log is:

Author: ryan ryan@b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Date: Wed Aug 24 05:08:00 2005 +0000

   Lovely RDOC patches from mathew (metaATpoboxDOTcom) on URI/* and getoptlong.rb

But in fact, it includes code, which changed the spec and
even caused the regression actually.

I believe that this is accident. I don't know who mathew
is and how he sent the patch to Ryan. But Ryan, please be
careful to check a patch written by others when you import.

diff --git a/lib/uri/ftp.rb b/lib/uri/ftp.rb
index 1ffd909..85efccd 100644
--- a/lib/uri/ftp.rb
+++ b/lib/uri/ftp.rb
@@ -87,11 +87,6 @@ module URI
# foo/bar /foo/bar
# /foo/bar /%2Ffoo/bar
#

•  if args.kind_of?(Array)
  

•    args[3] = '/' + args[3].sub(/^\//, '%2F')
  

•  else
  

•    args[:path] = '/' + args[:path].sub(/^\//, '%2F')
  

•  end
  
   tmp = Util::make_components_hash(self, args)
  

@@ -118,6 +113,7 @@ module URI
# +opaque+, +query+ and +fragment+, in that order.
#
def initialize(*arg)

•  arg[5] = arg[5].sub(/^\//,'').sub(/^%2F/,'/')
   super(*arg)
   @typecode = nil
   tmp = @path.index(TYPECODE_PREFIX)
  

@@ -185,6 +181,11 @@ module URI
return @path.sub(/^//,'').sub(/^%2F/,'/')
end

• def set_path(v)

•  super("/" + v.sub(/^\//, "%2F"))
  

• end
• protected :set_path
• def to_s
  save_path = nil
  if @typecode
  diff --git a/lib/uri/generic.rb b/lib/uri/generic.rb
  index 14ca973..4fdfd14 100644
  --- a/lib/uri/generic.rb
  +++ b/lib/uri/generic.rb
  @@ -482,7 +482,9 @@ module URI
  "path conflicts with opaque"
  end

•  if @scheme
  

•  # If scheme is ftp, path may be relative.
  

•  # See RFC 1738 section 3.2.2, and RFC 2396.
  

•  if @scheme && @scheme != "ftp"
     if v && v != '' && parser.regexp[:ABS_PATH] !~ v
       raise InvalidComponentError,
         "bad component(expected absolute path component): #{v}"
  

--
Yusuke Endoh [e-mail]
=end

[mame (Yusuke Endoh)]

• Status changed from Assigned to Closed
• % Done changed from 0 to 100

=begin
This issue was solved with changeset r27350.
Norihisa, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

=end