discourse/lib/validators/post_validator.rb

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require_dependency 'validators/stripped_length_validator'
module Validators; end
class Validators::PostValidator < ActiveModel::Validator
def validate(record)
presence(record)
stripped_length(record)
raw_quality(record)
max_mention_validator(record)
max_images_validator(record)
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max_attachments_validator(record)
max_links_validator(record)
unique_post_validator(record)
end
def presence(post)
[:raw,:topic_id].each do |attr_name|
post.errors.add(attr_name, :blank, options) if post.send(attr_name).blank?
end
if post.new_record? and post.user_id.nil?
post.errors.add(:user_id, :blank, options)
end
end
def stripped_length(post)
range = post.topic.try(:private_message?) ? SiteSetting.private_message_post_length : SiteSetting.post_length
Validators::StrippedLengthValidator.validate(post, :raw, post.raw, range)
end
def raw_quality(post)
sentinel = TextSentinel.body_sentinel(post.raw, private_message: post.topic.try(:private_message?))
post.errors.add(:raw, I18n.t(:is_invalid)) unless sentinel.valid?
end
# Ensure maximum amount of mentions in a post
def max_mention_validator(post)
if acting_user_is_trusted?(post)
add_error_if_count_exceeded(post, :too_many_mentions, post.raw_mentions.size, SiteSetting.max_mentions_per_post)
else
add_error_if_count_exceeded(post, :too_many_mentions_newuser, post.raw_mentions.size, SiteSetting.newuser_max_mentions_per_post)
end
end
# Ensure new users can not put too many images in a post
def max_images_validator(post)
add_error_if_count_exceeded(post, :too_many_images, post.image_count, SiteSetting.newuser_max_images) unless acting_user_is_trusted?(post)
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end
# Ensure new users can not put too many attachments in a post
def max_attachments_validator(post)
add_error_if_count_exceeded(post, :too_many_attachments, post.attachment_count, SiteSetting.newuser_max_attachments) unless acting_user_is_trusted?(post)
end
# Ensure new users can not put too many links in a post
def max_links_validator(post)
add_error_if_count_exceeded(post, :too_many_links, post.link_count, SiteSetting.newuser_max_links) unless acting_user_is_trusted?(post)
end
# Stop us from posting the same thing too quickly
def unique_post_validator(post)
return if SiteSetting.unique_posts_mins == 0
return if post.skip_unique_check
return if post.acting_user.admin? || post.acting_user.moderator?
# If the post is empty, default to the validates_presence_of
return if post.raw.blank?
if post.matches_recent_post?
post.errors.add(:raw, I18n.t(:just_posted_that))
end
end
private
def acting_user_is_trusted?(post)
post.acting_user.present? && post.acting_user.has_trust_level?(:basic)
end
def add_error_if_count_exceeded(post, key_for_translation, current_count, max_count)
post.errors.add(:base, I18n.t(key_for_translation, count: max_count)) if current_count > max_count
end
end