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|
require 'sanitize'
require 'cgi'
module Ag::Rendering
class HTMLizer
def self.HTMLize(mail)
if mail.multipart?
content_type = mime_split(mail.parts.first.content_type)
if content_type == 'text/plain' or content_type == 'text/html'
to_content(content_type, mail.parts.first.decoded, get_encoding(mail.parts.first))
else
# Nested multipart?
if mail.parts.first.multipart?
content_type = mime_split(mail.parts.first.parts.first.content_type)
if content_type == 'text/plain' or content_type == 'text/html'
to_content(content_type, mail.parts.first.parts.first.decoded, get_encoding(mail.parts.first.parts.first))
else
raise "Cannot find body: #{mail.message_id}"
end
# Specialty: Gnus/Emacs signed emails with no explicit multipart type
elsif mime_split(mail.content_type) == 'multipart/signed'
to_content('text/plain', mail.parts.first.decoded, get_encoding(mail.parts.first))
end
end
else
# No Content-Type, assume plain text (git-send-email)
if mail.content_type == nil
to_content('text/plain', mail.body.decoded, get_encoding(mail))
else
to_content(mime_split(mail.content_type), mail.body.decoded, get_encoding(mail))
end
end
end
def self.get_encoding(part)
if part.content_type_parameters
part.content_type_parameters['charset']
else
nil
end
end
def self.to_content(content_type, content, charset = nil)
#content = content.force_encoding(charset) if charset
if content_type == 'text/plain'
escaped_content = CGI::escapeHTML(content)
escaped_content.lines.map do |line|
if line.start_with? '>'
"<div class=\"ag-quote\">#{line.rstrip}</div>\n"
else
line
end
end.join.gsub("</div>\n<div class=\"ag-quote\">", "\n")
elsif content_type == 'text/html'
'<div class="ag-html-content">' + Sanitize.clean(content, Sanitize::Config::BASIC) + '</div>'
else
'<div class="alert alert-danger" role="alert"><strong>Unsupported Content-Type</strong></div>'
end
end
def self.mime_split(content_type)
(content_type || '').split(';').first
end
end
end
# vim: ts=2 sts=2 et ft=ruby:
|
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