257 lines
7.3 KiB
Ruby
257 lines
7.3 KiB
Ruby
require_dependency 'post_creator'
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require_dependency 'new_post_result'
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require_dependency 'word_watcher'
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# Determines what actions should be taken with new posts.
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#
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# The default action is to create the post, but this can be extended
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# with `NewPostManager.add_handler` to take other approaches depending
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# on the user or input.
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class NewPostManager
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attr_reader :user, :args
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def self.sorted_handlers
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@sorted_handlers ||= clear_handlers!
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end
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def self.handlers
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sorted_handlers.map { |h| h[:proc] }
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end
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def self.clear_handlers!
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@sorted_handlers = [{ priority: 0, proc: method(:default_handler) }]
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end
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def self.add_handler(priority = 0, &block)
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sorted_handlers << { priority: priority, proc: block }
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@sorted_handlers.sort_by! { |h| -h[:priority] }
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end
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def self.is_first_post?(manager)
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user = manager.user
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args = manager.args
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!!(
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args[:first_post_checks] &&
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user.post_count == 0
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)
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end
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def self.is_fast_typer?(manager)
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args = manager.args
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is_first_post?(manager) &&
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args[:typing_duration_msecs].to_i < SiteSetting.min_first_post_typing_time &&
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SiteSetting.auto_silence_fast_typers_on_first_post &&
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manager.user.trust_level <= SiteSetting.auto_silence_fast_typers_max_trust_level
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end
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def self.matches_auto_silence_regex?(manager)
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args = manager.args
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pattern = SiteSetting.auto_silence_first_post_regex
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return false unless pattern.present?
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return false unless is_first_post?(manager)
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begin
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regex = Regexp.new(pattern, Regexp::IGNORECASE)
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rescue => e
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Rails.logger.warn "Invalid regex in auto_silence_first_post_regex #{e}"
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return false
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end
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"#{args[:title]} #{args[:raw]}" =~ regex
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end
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def self.exempt_user?(user)
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user.staff?
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end
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def self.post_needs_approval?(manager)
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user = manager.user
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return :skip if exempt_user?(user)
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return :post_count if (
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user.trust_level <= TrustLevel.levels[:basic] &&
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user.post_count < SiteSetting.approve_post_count
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)
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return :trust_level if user.trust_level < SiteSetting.approve_unless_trust_level.to_i
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return :new_topics_unless_trust_level if (
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manager.args[:title].present? &&
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user.trust_level < SiteSetting.approve_new_topics_unless_trust_level.to_i
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)
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return :fast_typer if is_fast_typer?(manager)
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return :auto_silence_regex if matches_auto_silence_regex?(manager)
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return :watched_word if WordWatcher.new("#{manager.args[:title]} #{manager.args[:raw]}").requires_approval?
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return :staged if SiteSetting.approve_unless_staged? && user.staged?
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return :category if post_needs_approval_in_its_category?(manager)
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:skip
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end
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def self.post_needs_approval_in_its_category?(manager)
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if manager.args[:topic_id].present?
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cat = Category.joins(:topics).find_by(topics: { id: manager.args[:topic_id] })
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return false unless cat
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cat.require_reply_approval?
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elsif manager.args[:category].present?
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Category.find(manager.args[:category]).require_topic_approval?
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else
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false
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end
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end
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def self.default_handler(manager)
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reason = post_needs_approval?(manager)
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return if reason == :skip
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validator = Validators::PostValidator.new
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post = Post.new(raw: manager.args[:raw])
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post.user = manager.user
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validator.validate(post)
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if post.errors[:raw].present?
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result = NewPostResult.new(:created_post, false)
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result.errors.add(:base, post.errors[:raw])
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return result
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elsif manager.args[:topic_id]
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topic = Topic.unscoped.where(id: manager.args[:topic_id]).first
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unless manager.user.guardian.can_create_post_on_topic?(topic)
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result = NewPostResult.new(:created_post, false)
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result.errors.add(:base, I18n.t(:topic_not_found))
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return result
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end
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elsif manager.args[:category]
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category = Category.find_by(id: manager.args[:category])
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unless manager.user.guardian.can_create_topic_on_category?(category)
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result = NewPostResult.new(:created_post, false)
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result.errors.add(:base, I18n.t("js.errors.reasons.forbidden"))
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return result
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end
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end
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result = manager.enqueue(reason)
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if is_fast_typer?(manager)
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UserSilencer.silence(manager.user, Discourse.system_user, keep_posts: true, reason: I18n.t("user.new_user_typed_too_fast"))
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elsif matches_auto_silence_regex?(manager)
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UserSilencer.silence(manager.user, Discourse.system_user, keep_posts: true, reason: I18n.t("user.content_matches_auto_silence_regex"))
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end
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result
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end
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def self.queue_enabled?
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SiteSetting.approve_post_count > 0 ||
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SiteSetting.approve_unless_trust_level.to_i > 0 ||
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SiteSetting.approve_new_topics_unless_trust_level.to_i > 0 ||
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SiteSetting.approve_unless_staged ||
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WordWatcher.words_for_action_exists?(:require_approval) ||
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handlers.size > 1
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end
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def initialize(user, args)
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@user = user
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@args = args.delete_if { |_, v| v.nil? }
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end
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def perform
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if !self.class.exempt_user?(@user) && matches = WordWatcher.new("#{@args[:title]} #{@args[:raw]}").should_block?
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result = NewPostResult.new(:created_post, false)
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result.errors.add(:base, I18n.t('contains_blocked_words', word: matches[0]))
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return result
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end
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# We never queue private messages
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return perform_create_post if @args[:archetype] == Archetype.private_message
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if args[:topic_id] && Topic.where(id: args[:topic_id], archetype: Archetype.private_message).exists?
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return perform_create_post
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end
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# Perform handlers until one returns a result
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handled = NewPostManager.handlers.any? do |handler|
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result = handler.call(self)
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return result if result
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false
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end
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perform_create_post unless handled
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end
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# Enqueue this post
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def enqueue(reason = nil)
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result = NewPostResult.new(:enqueued)
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reviewable = ReviewableQueuedPost.new(
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created_by: @user,
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payload: { raw: @args[:raw], tags: @args[:tags] },
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topic_id: @args[:topic_id],
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reviewable_by_moderator: true
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)
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reviewable.payload['title'] = @args[:title] if @args[:title].present?
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reviewable.category_id = args[:category] if args[:category].present?
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reviewable.created_new!
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create_options = reviewable.create_options
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creator = @args[:topic_id] ?
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PostCreator.new(@user, create_options) :
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TopicCreator.new(@user, Guardian.new(@user), create_options)
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errors = Set.new
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creator.valid?
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creator.errors.full_messages.each { |msg| errors << msg }
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errors = creator.errors.full_messages.uniq
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if errors.blank?
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if reviewable.save
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reviewable.add_score(
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Discourse.system_user,
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ReviewableScore.types[:needs_approval],
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reason: reason,
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force_review: true
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)
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else
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reviewable.errors.full_messages.each { |msg| errors << msg }
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end
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end
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result.reviewable = reviewable
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result.reason = reason if reason
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result.check_errors(errors)
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result.pending_count = ReviewableQueuedPost.where(created_by: @user).pending.count
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result
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end
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def perform_create_post
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result = NewPostResult.new(:create_post)
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creator = PostCreator.new(@user, @args)
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post = creator.create
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result.check_errors_from(creator)
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if result.success?
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result.post = post
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else
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@user.flag_linked_posts_as_spam if creator.spam?
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end
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result
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end
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end
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