discourse/lib/email_cook.rb

82 lines
1.5 KiB
Ruby
Raw Normal View History

# A very simple formatter for imported emails
class EmailCook
def self.url_regexp
/((?:https?:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.])(?:[^\s()<>]+|\([^\s()<>]+\))+(?:\([^\s()<>]+\)|[^`!()\[\]{};:'".,<>?«»“”‘’\s]))/
end
def initialize(raw)
@raw = raw
end
def add_quote(result, buffer)
if buffer.present?
return if buffer =~ /\A(<br>)+\z$/
result << "<blockquote>#{buffer}</blockquote>"
end
end
def link_string!(str)
str.scan(EmailCook.url_regexp).each do |m|
url = m[0]
2016-07-18 15:00:12 -04:00
val = "<a href='#{url}'>#{url}</a>"
# Onebox consideration
if str.strip == url
oneboxed = Oneboxer.onebox(url)
val = oneboxed if oneboxed.present?
end
str.gsub!(url, val)
end
end
def cook
result = ""
2016-07-12 15:37:19 -04:00
in_text = false
in_quote = false
2016-07-12 15:37:19 -04:00
quote_buffer = ""
@raw.each_line do |l|
if l =~ /^\s*>/
in_quote = true
link_string!(l)
quote_buffer << l.sub(/^[\s>]*/, '') << "<br>"
elsif in_quote
add_quote(result, quote_buffer)
quote_buffer = ""
in_quote = false
else
sz = l.size
link_string!(l)
result << l
2016-07-12 15:37:19 -04:00
if sz < 60
result << "<br>"
if in_text
result << "<br>"
end
in_text = false
else
in_text = true
end
end
end
if in_quote && quote_buffer.present?
add_quote(result, quote_buffer)
end
2016-07-12 15:37:19 -04:00
result.gsub!(/(<br>\n*){3,10}/, '<br><br>')
result
end
end