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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 31555 2011-05-13 20:03:21Z drbrain $
#
# See URI for general documentation
#
require 'uri/generic'
module URI
#
# RFC2368, The mailto URL scheme
#
class MailTo < Generic
include REGEXP
# A Default port of nil for URI::MailTo
DEFAULT_PORT = nil
# An Array of the available components for URI::MailTo
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).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).freeze
# :startdoc:
#
# == Description
#
# Creates a new URI::MailTo object from components, with syntax checking.
#
# Components can be provided as an Array or Hash. If an Array is used,
# the components must be supplied as [to, headers].
#
# If a Hash is used, the keys are the component names preceded by colons.
#
# The headers can be supplied as a pre-encoded string, such as
# "subject=subscribe&cc=address", or as an Array of Arrays like
# [['subject', 'subscribe'], ['cc', 'address']]
#
# Examples:
#
# require 'uri'
#
# m1 = URI::MailTo.build(['joe@example.com', 'subject=Ruby'])
# puts m1.to_s -> mailto:joe@example.com?subject=Ruby
#
# m2 = URI::MailTo.build(['john@example.com', [['Subject', 'Ruby'], ['Cc', 'jack@example.com']]])
# puts m2.to_s -> mailto:john@example.com?Subject=Ruby&Cc=jack@example.com
#
# m3 = URI::MailTo.build({:to => 'listman@example.com', :headers => [['subject', 'subscribe']]})
# puts m3.to_s -> mailto:listman@example.com?subject=subscribe
#
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 URL components with
# no syntax checking.
#
# This method is usually called from URI::parse, which checks
# the validity of each component.
#
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
# The primary e-mail address of the URL, as a String
attr_reader :to
# E-mail headers set by the URL, as an Array of Arrays
attr_reader :headers
# check the to +v+ component against either
# * URI::Parser Regexp for :OPAQUE
# * MAILBOX_PATTERN
def check_to(v)
return true unless v
return true if v.size == 0
if parser.regexp[:OPAQUE] !~ v || /\A#{MAILBOX_PATTERN}*\z/o !~ v
raise InvalidComponentError,
"bad component(expected opaque component): #{v}"
end
return true
end
private :check_to
# private setter for to +v+
def set_to(v)
@to = v
end
protected :set_to
# setter for to +v+
def to=(v)
check_to(v)
set_to(v)
v
end
# check the headers +v+ component against either
# * URI::Parser Regexp for :OPAQUE
# * HEADER_PATTERN
def check_headers(v)
return true unless v
return true if v.size == 0
if parser.regexp[: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
# private setter for headers +v+
def set_headers(v)
@headers = []
if v
v.scan(HEADER_REGEXP) do |x|
@headers << x.split(/=/o, 2)
end
end
end
protected :set_headers
# setter for headers +v+
def headers=(v)
check_headers(v)
set_headers(v)
v
end
# Constructs String from URI
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
# Returns the RFC822 e-mail text equivalent of the URL, as a String.
#
# Example:
#
# 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 = parser.unescape(@to)
head = ''
body = ''
@headers.each do |x|
case x[0]
when 'body'
body = parser.unescape(x[1])
when 'to'
to << ', ' + parser.unescape(x[1])
else
head << parser.unescape(x[0]).capitalize + ': ' +
parser.unescape(x[1]) + "\n"
end
end
return "To: #{to}
#{head}
#{body}
"
end
alias to_rfc822text to_mailtext
end
@@schemes['MAILTO'] = MailTo
end