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# lib/tmail_extensions.rb:
# Extensions / fixes to TMail.
#
# Copyright (c) 2009 UK Citizens Online Democracy. All rights reserved.
# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
require 'racc/parser'
require 'tmail'
require 'tmail/scanner'
require 'tmail/utils'
require 'tmail/interface'
# Monkeypatch!
# These mainly used in app/models/incoming_message.rb
module TMail
class Mail
# Monkeypatch! Adding some extra members to store extra info in.
attr_accessor :url_part_number
attr_accessor :rfc822_attachment # when a whole email message is attached as text
attr_accessor :within_rfc822_attachment # for parts within a message attached as text (for getting subject mainly)
# Monkeypatch! (check to see if this becomes a standard function in
# TMail::Mail, then use that, whatever it is called)
def Mail.get_part_file_name(part)
file_name = (part['content-location'] &&
part['content-location'].body) ||
part.sub_header("content-type", "name") ||
part.sub_header("content-disposition", "filename")
file_name = file_name.strip if file_name
file_name
end
# Monkeypatch! Return the name part of from address, or nil if there isn't one
def from_name_if_present
if self.from && self.from_addrs[0].name
return TMail::Unquoter.unquote_and_convert_to(self.from_addrs[0].name, "utf-8")
else
return nil
end
end
# Monkeypatch! Generalisation of To:, Cc:
def envelope_to(default = nil)
# XXX assumes only one envelope-to, and no parsing needed
val = self.header_string('envelope-to')
return val ? [val,] : []
end
# Monkeypatch!
# Bug fix to this function - is for message in humberside-police-odd-mime-type.email
# Which was originally: https://secure.mysociety.org/admin/foi/request/show_raw_email/11209
# See test in spec/lib/tmail_extensions.rb
def set_content_type( str, sub = nil, param = nil )
if sub
main, sub = str, sub
else
main, sub = str.split(%r</>, 2)
raise ArgumentError, "sub type missing: #{str.inspect}" unless sub
end
if h = @header['content-type']
h.main_type = main
h.sub_type = sub
h.params.clear if !h.params.nil? # XXX this if statement is the fix # XXX disabled until works with test
else
store 'Content-Type', "#{main}/#{sub}"
end
@header['content-type'].params.replace param if param
str
end
# Need to make sure this alias calls the Monkeypatch too
alias content_type= set_content_type
end
module TextUtils
# Monkeypatch! Much more aggressive list of characters to cause quoting
# than in normal TMail. e.g. Have found real cases where @ needs quoting.
# We list characters to allow, rather than characters not to allow.
NEW_PHRASE_UNSAFE=/[^A-Za-z0-9!#\$%&'*+\-\/=?^_`{|}~ ]/n
def quote_phrase( str )
(NEW_PHRASE_UNSAFE === str) ? dquote(str) : str
end
end
end
# Monkeypatch! TMail 1.2.7.1 will parse only one address out of a list of addresses with
# unquoted display parts https://github.com/mikel/tmail/issues#issue/9 - this monkeypatch
# fixes this issue.
module TMail
class Parser < Racc::Parser
module_eval <<'..end lib/tmail/parser.y modeval..id2dd1c7d21d', 'lib/tmail/parser.y', 340
def self.special_quote_address(str) #:nodoc:
# Takes a string which is an address and adds quotation marks to special
# edge case methods that the RACC parser can not handle.
#
# Right now just handles two edge cases:
#
# Full stop as the last character of the display name:
# Mikel L. <mikel@me.com>
# Returns:
# "Mikel L." <mikel@me.com>
#
# Unquoted @ symbol in the display name:
# mikel@me.com <mikel@me.com>
# Returns:
# "mikel@me.com" <mikel@me.com>
#
# Any other address not matching these patterns just gets returned as is.
case
# This handles the missing "" in an older version of Apple Mail.app
# around the display name when the display name contains a '@'
# like 'mikel@me.com <mikel@me.com>'
# Just quotes it to: '"mikel@me.com" <mikel@me.com>'
when str =~ /\A([^"][^<]+@[^>]+[^"])\s(<.*?>)\Z/
return "\"#{$1}\" #{$2}"
# This handles cases where 'Mikel A. <mikel@me.com>' which is a trailing
# full stop before the address section. Just quotes it to
# '"Mikel A." <mikel@me.com>'
when str =~ /\A(.*?\.)\s(<.*?>)\s*\Z/
return "\"#{$1}\" #{$2}"
else
str
end
end
..end lib/tmail/parser.y modeval..id2dd1c7d21d
end # class Parser
end # module TMail
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