Class: NewPostManager

Inherits:
Object
  • Object
show all
Defined in:
lib/new_post_manager.rb

Overview

Determines what actions should be taken with new posts.

The default action is to create the post, but this can be extended with ‘NewPostManager.add_handler` to take other approaches depending on the user or input.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(user, args) ⇒ NewPostManager

Returns a new instance of NewPostManager.



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# File 'lib/new_post_manager.rb', line 217

def initialize(user, args)
  @user = user
  @args = args.delete_if { |_, v| v.nil? }
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/new_post_manager.rb', line 9

def args
  @args
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/new_post_manager.rb', line 9

def user
  @user
end

Class Method Details

.add_handler(priority = 0, &block) ⇒ Object 



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# File 'lib/new_post_manager.rb', line 31

def self.add_handler(priority = 0, &block)
  sorted_handlers << { priority: priority, proc: block }
  @sorted_handlers.sort_by! { |h| -h[:priority] }
end

.add_plugin_payload_attribute(attribute) ⇒ Object 



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# File 'lib/new_post_manager.rb', line 23

def self.add_plugin_payload_attribute(attribute)
  plugin_payload_attributes << attribute
end

.auto_silence?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 52

def self.auto_silence?(manager)
  is_first_post?(manager) &&
    WordWatcher.new("#{manager.args[:title]} #{manager.args[:raw]}").should_silence?
end

.clear_handlers! ⇒ Object 



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# File 'lib/new_post_manager.rb', line 27

def self.clear_handlers!
  @sorted_handlers = []
end

.default_handler(manager) ⇒ Object 



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# File 'lib/new_post_manager.rb', line 143

def self.default_handler(manager)
  reason = post_needs_approval?(manager)
  return if reason == :skip

  validator = PostValidator.new
  post = Post.new(raw: manager.args[:raw])
  post.user = manager.user
  validator.validate(post)

  if post.errors[:raw].present?
    result = NewPostResult.new(:created_post, false)
    result.errors.add(:base, post.errors[:raw])
    return result
  elsif manager.args[:topic_id]
    topic = Topic.unscoped.where(id: manager.args[:topic_id]).first

    unless manager.user.guardian.can_create_post_on_topic?(topic)
      result = NewPostResult.new(:created_post, false)
      result.errors.add(:base, I18n.t(:topic_not_found))
      return result
    end
  elsif manager.args[:category]
    category = Category.find_by(id: manager.args[:category])

    unless manager.user.guardian.can_create_topic_on_category?(category)
      result = NewPostResult.new(:created_post, false)
      result.errors.add(:base, I18n.t("js.errors.reasons.forbidden"))
      return result
    end
  end

  result = manager.enqueue(reason)

  I18n.with_locale(SiteSetting.default_locale) do
    if is_fast_typer?(manager)
      UserSilencer.silence(
        manager.user,
        Discourse.system_user,
        keep_posts: true,
        reason: I18n.t("user.new_user_typed_too_fast"),
      )
    elsif auto_silence?(manager) || matches_auto_silence_regex?(manager)
      UserSilencer.silence(
        manager.user,
        Discourse.system_user,
        keep_posts: true,
        reason: I18n.t("user.content_matches_auto_silence_regex"),
      )
    elsif reason == :email_spam && is_first_post?(manager)
      UserSilencer.silence(
        manager.user,
        Discourse.system_user,
        keep_posts: true,
        reason: I18n.t("user.email_in_spam_header"),
      )
    end
  end

  result
end

.exempt_user?(user) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 75

def self.exempt_user?(user)
  user.staff?
end

.handlers ⇒ Object 



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# File 'lib/new_post_manager.rb', line 15

def self.handlers
  sorted_handlers.map { |h| h[:proc] }
end

.is_fast_typer?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 43

def self.is_fast_typer?(manager)
  args = manager.args

  is_first_post?(manager) &&
    args[:typing_duration_msecs].to_i < SiteSetting.min_first_post_typing_time &&
    SiteSetting.auto_silence_fast_typers_on_first_post &&
    manager.user.trust_level <= SiteSetting.auto_silence_fast_typers_max_trust_level
end

.is_first_post?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 36

def self.is_first_post?(manager)
  user = manager.user
  args = manager.args

  !!(args[:first_post_checks] && user.post_count == 0 && user.topic_count == 0)
end

.matches_auto_silence_regex?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 57

def self.matches_auto_silence_regex?(manager)
  args = manager.args

  pattern = SiteSetting.auto_silence_first_post_regex

  return false if pattern.blank?
  return false unless is_first_post?(manager)

  begin
    regex = Regexp.new(pattern, Regexp::IGNORECASE)
  rescue => e
    Rails.logger.warn "Invalid regex in auto_silence_first_post_regex #{e}"
    return false
  end

  "#{args[:title]} #{args[:raw]}" =~ regex
end

.plugin_payload_attributes ⇒ Object 



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# File 'lib/new_post_manager.rb', line 19

def self.plugin_payload_attributes
  @payload_attributes ||= []
end

.post_needs_approval?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 79

def self.post_needs_approval?(manager)
  user = manager.user

  return :email_auth_res_enqueue if manager.args[:email_auth_res_action] == :enqueue

  return :skip if exempt_user?(user)

  return :email_spam if manager.args[:email_spam]

  if (
       user.trust_level <= TrustLevel.levels[:basic] &&
         (user.post_count + user.topic_count) < SiteSetting.approve_post_count
     )
    return :post_count
  end

  if !user.staged? && !user.in_any_groups?(SiteSetting.approve_unless_allowed_groups_map)
    return :group
  end

  if (
       manager.args[:title].present? && !user.staged? &&
         !user.in_any_groups?(SiteSetting.approve_new_topics_unless_allowed_groups_map)
     )
    return :new_topics_unless_allowed_groups
  end

  if WordWatcher.new("#{manager.args[:title]} #{manager.args[:raw]}").requires_approval?
    return :watched_word
  end

  return :fast_typer if is_fast_typer?(manager)

  return :auto_silence_regex if auto_silence?(manager) || matches_auto_silence_regex?(manager)

  return :staged if SiteSetting.approve_unless_staged? && user.staged?

  return :category if post_needs_approval_in_its_category?(manager)

  if (
       manager.args[:image_sizes].present? &&
         !user.in_any_groups?(SiteSetting.skip_review_media_groups_map)
     )
    return :contains_media
  end

  :skip
end

.post_needs_approval_in_its_category?(manager) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 128

def self.post_needs_approval_in_its_category?(manager)
  if manager.args[:topic_id].present?
    cat = Category.joins(:topics).find_by(topics: { id: manager.args[:topic_id] })
    return false unless cat

    topic = Topic.find(manager.args[:topic_id])
    cat.require_reply_approval? && !manager.user.guardian.can_review_topic?(topic)
  elsif manager.args[:category].present?
    cat = Category.find(manager.args[:category])
    cat.require_topic_approval? && !manager.user.guardian.is_category_group_moderator?(cat)
  else
    false
  end
end

.queue_enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/new_post_manager.rb', line 204

def self.queue_enabled?
  SiteSetting.approve_post_count > 0 ||
    !(
      SiteSetting.approve_unless_allowed_groups_map.include?(Group::AUTO_GROUPS[:trust_level_0])
    ) ||
    !(
      SiteSetting.approve_new_topics_unless_allowed_groups_map.include?(
        Group::AUTO_GROUPS[:trust_level_0],
      )
    ) || SiteSetting.approve_unless_staged ||
    WordWatcher.words_for_action_exist?(:require_approval) || handlers.size > 1
end

.sorted_handlers ⇒ Object 



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# File 'lib/new_post_manager.rb', line 11

def self.sorted_handlers
  @sorted_handlers ||= clear_handlers!
end

Instance Method Details

#enqueue(reason = nil) ⇒ Object

Enqueue this post



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# File 'lib/new_post_manager.rb', line 256

def enqueue(reason = nil)
  result = NewPostResult.new(:enqueued)
  payload = { raw: @args[:raw], tags: @args[:tags] }
  %w[typing_duration_msecs composer_open_duration_msecs reply_to_post_number].each do |a|
    payload[a] = @args[a].to_i if @args[a]
  end

  self.class.plugin_payload_attributes.each { |a| payload[a] = @args[a] if @args[a].present? }

  payload[:via_email] = true if !!@args[:via_email]
  payload[:raw_email] = @args[:raw_email] if @args[:raw_email].present?

  reviewable =
    ReviewableQueuedPost.new(
      created_by: Discourse.system_user,
      payload: payload,
      topic_id: @args[:topic_id],
      reviewable_by_moderator: true,
      target_created_by: @user,
    )
  reviewable.payload["title"] = @args[:title] if @args[:title].present?
  reviewable.category_id = args[:category] if args[:category].present?
  reviewable.created_new!

  create_options = reviewable.create_options

  creator =
    (
      if @args[:topic_id]
        PostCreator.new(@user, create_options)
      else
        TopicCreator.new(@user, Guardian.new(@user), create_options)
      end
    )

  errors = Set.new
  creator.valid?
  creator.errors.full_messages.each { |msg| errors << msg }
  errors = creator.errors.full_messages.uniq
  if errors.blank?
    if reviewable.save
      reviewable.add_score(
        Discourse.system_user,
        ReviewableScore.types[:needs_approval],
        reason: reason,
        force_review: true,
      )
    else
      reviewable.errors.full_messages.each { |msg| errors << msg }
    end
  end

  result.reviewable = reviewable
  result.reason = reason if reason
  result.check_errors(errors)
  result.pending_count = ReviewableQueuedPost.where(target_created_by: @user).pending.count
  result
end

#perform ⇒ Object 



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# File 'lib/new_post_manager.rb', line 222

def perform
  if !self.class.exempt_user?(@user) &&
       matches = WordWatcher.new("#{@args[:title]} #{@args[:raw]}").should_block?.presence
    result = NewPostResult.new(:created_post, false)
    if matches.size == 1
      key = "contains_blocked_word"
      translation_args = { word: CGI.escapeHTML(matches[0]) }
    else
      key = "contains_blocked_words"
      translation_args = { words: CGI.escapeHTML(matches.join(", ")) }
    end
    result.errors.add(:base, I18n.t(key, translation_args))
    return result
  end

  # Perform handlers until one returns a result
  NewPostManager.handlers.any? do |handler|
    result = handler.call(self)
    return result if result
  end

  # We never queue private messages
  if @args[:archetype] == Archetype.private_message ||
       (
         args[:topic_id] &&
           Topic.where(id: args[:topic_id], archetype: Archetype.private_message).exists?
       )
    return perform_create_post
  end

  NewPostManager.default_handler(self) || perform_create_post
end

#perform_create_post ⇒ Object 



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# File 'lib/new_post_manager.rb', line 315

def perform_create_post
  result = NewPostResult.new(:create_post)
  creator = PostCreator.new(@user, @args)
  post = creator.create
  result.check_errors_from(creator)

  if result.success?
    result.post = post
  else
    @user.flag_linked_posts_as_spam if creator.spam?
  end

  result
end