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|
#
# = uri/mailto.rb
#
# Author:: Akira Yamada <akira@ruby-lang.org>
# License:: You can redistribute it and/or modify it under the same term as Ruby.
# Revision:: $Id: mailto.rb,v 1.6.2.2 2004/05/13 04:03:33 akira Exp $
#
require 'uri/generic'
module URI
#
# RFC2368, The mailto URL scheme
#
class MailTo < Generic
include REGEXP
DEFAULT_PORT = nil
COMPONENT = [ :scheme, :to, :headers ].freeze
# :stopdoc:
# "hname" and "hvalue" are encodings of an RFC 822 header name and
# value, respectively. As with "to", all URL reserved characters must
# be encoded.
#
# "#mailbox" is as specified in RFC 822 [RFC822]. This means that it
# consists of zero or more comma-separated mail addresses, possibly
# including "phrase" and "comment" components. Note that all URL
# reserved characters in "to" must be encoded: in particular,
# parentheses, commas, and the percent sign ("%"), which commonly occur
# in the "mailbox" syntax.
#
# Within mailto URLs, the characters "?", "=", "&" are reserved.
# hname = *urlc
# hvalue = *urlc
# header = hname "=" hvalue
HEADER_PATTERN = "(?:[^?=&]*=[^?=&]*)".freeze
HEADER_REGEXP = Regexp.new(HEADER_PATTERN, 'N').freeze
# headers = "?" header *( "&" header )
# to = #mailbox
# mailtoURL = "mailto:" [ to ] [ headers ]
MAILBOX_PATTERN = "(?:#{PATTERN::ESCAPED}|[^(),%?=&])".freeze
MAILTO_REGEXP = Regexp.new(" # :nodoc:
\\A
(#{MAILBOX_PATTERN}*?) (?# 1: to)
(?:
\\?
(#{HEADER_PATTERN}(?:\\&#{HEADER_PATTERN})*) (?# 2: headers)
)?
(?:
\\#
(#{PATTERN::FRAGMENT}) (?# 3: fragment)
)?
\\z
", Regexp::EXTENDED, 'N').freeze
# :startdoc:
#
# == Description
#
# Creates a new URI::MailTo object from components of URI::MailTo
# with check. It is to and headers. It provided by an Array of a
# Hash. You can provide headers as String like
# "subject=subscribe&cc=addr" or Array like [["subject",
# "subscribe"], ["cc", "addr"]]
#
def self.build(args)
tmp = Util::make_components_hash(self, args)
if tmp[:to]
tmp[:opaque] = tmp[:to]
else
tmp[:opaque] = ''
end
if tmp[:headers]
tmp[:opaque] << '?'
if tmp[:headers].kind_of?(Array)
tmp[:opaque] << tmp[:headers].collect { |x|
if x.kind_of?(Array)
x[0] + '=' + x[1..-1].to_s
else
x.to_s
end
}.join('&')
elsif tmp[:headers].kind_of?(Hash)
tmp[:opaque] << tmp[:headers].collect { |h,v|
h + '=' + v
}.join('&')
else
tmp[:opaque] << tmp[:headers].to_s
end
end
return super(tmp)
end
#
# == Description
#
# Creates a new URI::MailTo object from ``generic'' components with
# no check. Because, this method is usually called from URI::parse
# and the method checks validity of each components.
#
def initialize(*arg)
super(*arg)
@to = nil
@headers = []
if MAILTO_REGEXP =~ @opaque
if arg[-1]
self.to = $1
self.headers = $2
else
set_to($1)
set_headers($2)
end
else
raise InvalidComponentError,
"unrecognised opaque part for mailtoURL: #{@opaque}"
end
end
attr_reader :to
attr_reader :headers
def check_to(v)
return true unless v
return true if v.size == 0
if OPAQUE !~ v || /\A#{MAILBOX_PATTERN}*\z/o !~ v
raise InvalidComponentError,
"bad component(expected opaque component): #{v}"
end
return true
end
private :check_to
def set_to(v)
@to = v
end
protected :set_to
def to=(v)
check_to(v)
set_to(v)
v
end
def check_headers(v)
return true unless v
return true if v.size == 0
if OPAQUE !~ v ||
/\A(#{HEADER_PATTERN}(?:\&#{HEADER_PATTERN})*)\z/o !~ v
raise InvalidComponentError,
"bad component(expected opaque component): #{v}"
end
return true
end
private :check_headers
def set_headers(v)
@headers = []
if v
v.scan(HEADER_REGEXP) do |x|
@headers << x.split(/=/o, 2)
end
end
end
protected :set_headers
def headers=(v)
check_headers(v)
set_headers(v)
v
end
def to_s
@scheme + ':' +
if @to
@to
else
''
end +
if @headers.size > 0
'?' + @headers.collect{|x| x.join('=')}.join('&')
else
''
end +
if @fragment
'#' + @fragment
else
''
end
end
#
# == Usage
# require 'uri'
#
# uri = URI.parse("mailto:ruby-list@ruby-lang.org?Subject=subscribe&cc=myaddr")
# uri.to_mailtext
# # => "To: ruby-list@ruby-lang.org\nSubject: subscribe\nCc: myaddr\n\n\n"
#
def to_mailtext
to = URI::unescape(@to)
head = ''
body = ''
@headers.each do |x|
case x[0]
when 'body'
body = URI::unescape(x[1])
when 'to'
to << ', ' + URI::unescape(x[1])
else
head << URI::unescape(x[0]).capitalize + ': ' +
URI::unescape(x[1]) + "\n"
end
end
return "To: #{to}
#{head}
#{body}
"
end
alias to_rfc822text to_mailtext
end
@@schemes['MAILTO'] = MailTo
end
|
