Class: PostValidator

Inherits:
ActiveModel::Validator
  • Object
show all
Defined in:
lib/validators/post_validator.rb

Instance Method Summary collapse

Instance Method Details

#can_post_links_validator(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 130

def can_post_links_validator(post)
  if (post.link_count == 0 && !post.has_oneboxes?) || private_message?(post)
    return newuser_links_validator(post)
  end

  guardian = Guardian.new(post.acting_user)
  if post.linked_hosts.keys.all? { |h| guardian.can_post_link?(host: h) }
    return newuser_links_validator(post)
  end

  post.errors.add(:base, I18n.t(:links_require_trust))
end

#force_edit_last_validator(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 167

def force_edit_last_validator(post)
  if SiteSetting.max_consecutive_replies == 0 || post.id || post.acting_user&.staff? ||
       private_message?(post)
    return
  end

  topic = post.topic
  return if topic&.ordered_posts&.first&.user == post.user

  guardian = Guardian.new(post.acting_user)
  return if guardian.is_category_group_moderator?(post.topic&.category)

  last_posts_count =
    DB.query_single(
      <<~SQL,
    SELECT COUNT(*)
    FROM (
      SELECT user_id
        FROM posts
       WHERE deleted_at IS NULL
         AND NOT hidden
         AND topic_id = :topic_id
       ORDER BY post_number DESC
       LIMIT :max_replies
    ) c
    WHERE c.user_id = :user_id
  SQL
      topic_id: post.topic_id,
      user_id: post.acting_user.id,
      max_replies: SiteSetting.max_consecutive_replies,
    ).first
  return if last_posts_count < SiteSetting.max_consecutive_replies

  if guardian.can_edit?(topic.ordered_posts.last)
    post.errors.add(
      :base,
      I18n.t(:max_consecutive_replies, count: SiteSetting.max_consecutive_replies),
    )
  end
end

#max_attachments_validator(post) ⇒ Object

Ensure new users can not put too many attachments in a post



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# File 'lib/validators/post_validator.rb', line 119

def max_attachments_validator(post)
  return if acting_user_is_trusted?(post) || private_message?(post)
  add_error_if_count_exceeded(
    post,
    :no_attachments_allowed,
    :too_many_attachments,
    post.attachment_count,
    SiteSetting.newuser_max_attachments,
  )
end

#max_embedded_media_validator(post) ⇒ Object

Ensure new users can not put too many media embeds (images, video, audio) in a post



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# File 'lib/validators/post_validator.rb', line 96

def max_embedded_media_validator(post)
  return if post.acting_user.blank? || post.acting_user&.staff?

  if post.acting_user.trust_level < TrustLevel[SiteSetting.min_trust_to_post_embedded_media]
    add_error_if_count_exceeded(
      post,
      :no_embedded_media_allowed_trust,
      :no_embedded_media_allowed_trust,
      post.embedded_media_count,
      0,
    )
  elsif post.acting_user.trust_level == TrustLevel[0]
    add_error_if_count_exceeded(
      post,
      :no_embedded_media_allowed,
      :too_many_embedded_media,
      post.embedded_media_count,
      SiteSetting.newuser_max_embedded_media,
    )
  end
end

#max_mention_validator(post) ⇒ Object

Ensure maximum amount of mentions in a post



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# File 'lib/validators/post_validator.rb', line 63

def max_mention_validator(post)
  return if post.acting_user.try(:staff?)

  if acting_user_is_trusted?(post) || private_message?(post)
    add_error_if_count_exceeded(
      post,
      :no_mentions_allowed,
      :too_many_mentions,
      post.raw_mentions.size,
      SiteSetting.max_mentions_per_post,
    )
  else
    add_error_if_count_exceeded(
      post,
      :no_mentions_allowed_newuser,
      :too_many_mentions_newuser,
      post.raw_mentions.size,
      SiteSetting.newuser_max_mentions_per_post,
    )
  end
end

#max_posts_validator(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 85

def max_posts_validator(post)
  if post.new_record? && post.acting_user.present? &&
       post.acting_user.posted_too_much_in_topic?(post.topic_id)
    post.errors.add(
      :base,
      I18n.t(:too_many_replies, count: SiteSetting.newuser_max_replies_per_topic),
    )
  end
end

#newuser_links_validator(post) ⇒ Object

Ensure new users can not put too many links in a post



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# File 'lib/validators/post_validator.rb', line 144

def newuser_links_validator(post)
  return if acting_user_is_trusted?(post) || private_message?(post)
  add_error_if_count_exceeded(
    post,
    :no_links_allowed,
    :too_many_links,
    post.link_count,
    SiteSetting.newuser_max_links,
  )
end

#post_body_validator(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 30

def post_body_validator(post)
  return if options[:skip_post_body] || post.topic&.pm_with_non_human_user?
  stripped_length(post)
  raw_quality(post)
  WatchedWordsValidator.new(attributes: [:raw]).validate(post) if !post.acting_user&.staged
end

#presence(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 22

def presence(post)
  unless options[:skip_topic]
    post.errors.add(:topic_id, :blank, **options) if post.topic_id.blank?
  end

  post.errors.add(:user_id, :blank, **options) if post.new_record? && post.user_id.nil?
end

#raw_quality(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 57

def raw_quality(post)
  sentinel = TextSentinel.body_sentinel(post.raw, private_message: private_message?(post))
  post.errors.add(:raw, I18n.t(:is_invalid)) unless sentinel.valid?
end

#stripped_length(post) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 37

def stripped_length(post)
  range =
    if private_message?(post)
      # private message
      SiteSetting.private_message_post_length
    elsif post.is_first_post? || (post.topic.present? && post.topic.posts_count == 0)
      # creating/editing first post
      if post.topic&.featured_link&.present?
        (0..SiteSetting.max_post_length)
      else
        SiteSetting.first_post_length
      end
    else
      # regular post
      SiteSetting.post_length
    end

  StrippedLengthValidator.validate(post, :raw, post.raw, range)
end

#unique_post_validator(post) ⇒ Object

Stop us from posting the same thing too quickly



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# File 'lib/validators/post_validator.rb', line 156

def unique_post_validator(post)
  return if SiteSetting.unique_posts_mins == 0
  return if post.skip_unique_check
  return if post.acting_user.try(:staff?)

  # If the post is empty, default to the validates_presence_of
  return if post.raw.blank?

  post.errors.add(:raw, I18n.t(:just_posted_that)) if post.matches_recent_post?
end

#validate(record) ⇒ Object 



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# File 'lib/validators/post_validator.rb', line 4

def validate(record)
  presence(record)

  return if record.acting_user.try(:staged?)
  if record.acting_user.try(:admin?) && Discourse.static_doc_topic_ids.include?(record.topic_id)
    return
  end

  post_body_validator(record)
  max_posts_validator(record)
  max_mention_validator(record)
  max_embedded_media_validator(record)
  max_attachments_validator(record)
  can_post_links_validator(record)
  unique_post_validator(record)
  force_edit_last_validator(record)
end