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comment.rb
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comment.rb
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class Comment < ActiveRecord::Base
belongs_to :page, :counter_cache => true
validates_presence_of :author, :author_email, :content
before_save :auto_approve
before_save :apply_filter
after_save :save_mollom_servers
MOLLOM_SERVER_CACHE = RAILS_ROOT + '/tmp/mollom_servers.yaml'
def self.per_page
50
end
def request=(request)
self.author_ip = request.remote_ip
self.user_agent = request.env['HTTP_USER_AGENT']
self.referrer = request.env['HTTP_REFERER']
end
def akismet
@akismet ||= Akismet.new(Radiant::Config['comments.akismet_key'], Radiant::Config['comments.akismet_url'])
end
def save_mollom_servers
if mollom.key_ok?
File.open(MOLLOM_SERVER_CACHE,'w') do |f|
f.write mollom.server_list.to_yaml
end
end
rescue Mollom::Error
end
def mollom
return @mollom if @mollom
@mollom ||= Mollom.new(:private_key => Radiant::Config['comments.mollom_privatekey'], :public_key => Radiant::Config['comments.mollom_publickey'])
if (File.exists?(MOLLOM_SERVER_CACHE))
@mollom.server_list = YAML::load(File.read(MOLLOM_SERVER_CACHE))
end
@mollom
end
# If the Akismet details are valid, and Akismet thinks this is a non-spam
# comment, this method will return true
def auto_approve?
if akismet.valid?
# We do the negation because true means spam, false means ham
!akismet.commentCheck(
self.author_ip, # remote IP
self.user_agent, # user agent
self.referrer, # http referer
self.page.url, # permalink
'comment', # comment type
self.author, # author name
self.author_email, # author email
self.author_url, # author url
self.content, # comment text
{} # other
)
elsif mollom.key_ok?
response = mollom.check_content(
:author_name => self.author, # author name
:author_mail => self.author_email, # author email
:author_url => self.author_url, # author url
:post_body => self.content # comment text
)
ham = reponse.ham?
self.update_attibute(:mollom_id, response.session_id)
response.ham?
else
false
end
rescue Mollom::Error
return false
end
def unapproved?
!approved?
end
def approved?
!approved_at.nil?
end
def approve!
self.update_attribute(:approved_at, Time.now)
end
def unapprove!
self.update_attribute(:approved_at, nil)
# if we have to unapprove, and use mollom, it means
# the initial check was false. Submit this to mollom as Spam.
# Ideally, we'd need a different feedback for
# - spam
# - profanity
# - unwanted
# - low-quality
begin
if mollom.key_ok? and !self.mollom_id.empty?
mollom.send_feedback :session_id => self.mollom_id, :feedback => 'spam'
end
rescue Mollom::Error => e
raise Comment::AntispamWarning.new(e.to_s)
end
end
private
def auto_approve
self.approved_at = Time.now if auto_approve?
end
def apply_filter
self.content_html = filter.filter(content)
end
def filter
filtering_enabled? && filter_from_form || SimpleFilter.new
end
def filter_from_form
TextFilter.descendants.find { |f| f.filter_name == filter_id }
end
def filtering_enabled?
Radiant::Config['comments.filters_enabled'] == "true"
end
class SimpleFilter
include ERB::Util
include ActionView::Helpers::TextHelper
include ActionView::Helpers::TagHelper
def filter(content)
simple_format(h(content))
end
end
class AntispamWarning < StandardError; end
end