mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 06:29:30 +08:00
287 lines
8.3 KiB
Ruby
287 lines
8.3 KiB
Ruby
require_dependency 'has_errors'
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class TopicCreator
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attr_reader :user, :guardian, :opts
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include HasErrors
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def self.create(user, guardian, opts)
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self.new(user, guardian, opts).create
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end
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def initialize(user, guardian, opts)
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@user = user
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@guardian = guardian
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@opts = opts
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@added_users = []
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end
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def valid?
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topic = Topic.new(setup_topic_params)
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# validate? will clear the error hash
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# so we fire the validation event after
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# this allows us to add errors
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valid = topic.valid?
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DiscourseEvent.trigger(:after_validate_topic, topic, self)
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valid &&= topic.errors.empty?
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add_errors_from(topic) unless valid
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valid
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end
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def create
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topic = Topic.new(setup_topic_params)
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setup_tags(topic)
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DiscourseEvent.trigger(:before_create_topic, topic, self)
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setup_auto_close_time(topic)
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process_private_message(topic)
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save_topic(topic)
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create_warning(topic)
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watch_topic(topic)
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create_shared_draft(topic)
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topic
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end
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private
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def create_shared_draft(topic)
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return unless @opts[:shared_draft] && @opts[:category].present?
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SharedDraft.create(topic_id: topic.id, category_id: @opts[:category])
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end
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def create_warning(topic)
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return unless @opts[:is_warning]
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# We can only attach warnings to PMs
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rollback_with!(topic, :warning_requires_pm) unless topic.private_message?
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# Don't create it if there is more than one user
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rollback_with!(topic, :too_many_users) if @added_users.size != 1
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# Create a warning record
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UserWarning.create(topic: topic, user: @added_users.first, created_by: @user)
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end
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def watch_topic(topic)
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unless @opts[:auto_track] == false
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topic.notifier.watch_topic!(topic.user_id)
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end
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topic.reload.topic_allowed_users.each do |tau|
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next if tau.user_id == -1 || tau.user_id == topic.user_id
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topic.notifier.watch!(tau.user_id)
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end
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topic.reload.topic_allowed_groups.each do |tag|
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tag.group.group_users.each do |gu|
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next if gu.user_id == -1 || gu.user_id == topic.user_id
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action =
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case gu.notification_level
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when TopicUser.notification_levels[:tracking] then "track!"
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when TopicUser.notification_levels[:regular] then "regular!"
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when TopicUser.notification_levels[:muted] then "mute!"
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when TopicUser.notification_levels[:watching] then "watch!"
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else "track!"
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end
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topic.notifier.send(action, gu.user_id)
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end
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end
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end
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def setup_topic_params
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@opts[:visible] = true if @opts[:visible].nil?
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topic_params = {
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title: @opts[:title],
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user_id: @user.id,
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last_post_user_id: @user.id,
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visible: @opts[:visible]
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}
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[:subtype, :archetype, :meta_data, :import_mode].each do |key|
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topic_params[key] = @opts[key] if @opts[key].present?
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end
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if topic_params[:import_mode] && @opts[:views].to_i > 0
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topic_params[:views] = @opts[:views].to_i
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end
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# Automatically give it a moderator warning subtype if specified
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topic_params[:subtype] = TopicSubtype.moderator_warning if @opts[:is_warning]
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category = find_category
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@guardian.ensure_can_create!(Topic, category) unless (@opts[:skip_validations] || @opts[:archetype] == Archetype.private_message)
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topic_params[:category_id] = category.id if category.present?
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topic_params[:created_at] = Time.zone.parse(@opts[:created_at].to_s) if @opts[:created_at].present?
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topic_params[:pinned_at] = Time.zone.parse(@opts[:pinned_at].to_s) if @opts[:pinned_at].present?
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topic_params[:pinned_globally] = @opts[:pinned_globally] if @opts[:pinned_globally].present?
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if SiteSetting.topic_featured_link_enabled && @opts[:featured_link].present? && @guardian.can_edit_featured_link?(topic_params[:category_id])
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topic_params[:featured_link] = @opts[:featured_link]
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end
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topic_params
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end
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def find_category
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# PM can't have a category
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@opts.delete(:category) if @opts[:archetype].present? && @opts[:archetype] == Archetype.private_message
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if @opts[:shared_draft]
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return Category.find(SiteSetting.shared_drafts_category)
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end
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# Temporary fix to allow older clients to create topics.
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# When all clients are updated the category variable should
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# be set directly to the contents of the if statement.
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if (@opts[:category].is_a? Integer) || (@opts[:category] =~ /^\d+$/)
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Category.find_by(id: @opts[:category])
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else
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Category.find_by(name_lower: @opts[:category].try(:downcase))
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end
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end
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def setup_tags(topic)
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if @opts[:tags].blank?
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unless @guardian.is_staff? || !guardian.can_tag?(topic)
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# Validate minimum required tags for a category
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category = find_category
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if category.present? && category.minimum_required_tags > 0
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topic.errors[:base] << I18n.t("tags.minimum_required_tags", count: category.minimum_required_tags)
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rollback_from_errors!(topic)
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end
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end
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else
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valid_tags = DiscourseTagging.tag_topic_by_names(topic, @guardian, @opts[:tags])
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rollback_from_errors!(topic) unless valid_tags
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end
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end
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def setup_auto_close_time(topic)
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return unless @opts[:auto_close_time].present?
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return unless @guardian.can_moderate?(topic)
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topic.set_auto_close(@opts[:auto_close_time], by_user: @user)
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end
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def process_private_message(topic)
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return unless @opts[:archetype] == Archetype.private_message
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topic.subtype = TopicSubtype.user_to_user unless topic.subtype
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unless @opts[:target_usernames].present? || @opts[:target_emails].present? || @opts[:target_group_names].present?
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rollback_with!(topic, :no_user_selected)
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end
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if @opts[:target_emails].present? && !@guardian.can_send_private_messages_to_email? then
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rollback_with!(topic, :reply_by_email_disabled)
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end
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add_users(topic, @opts[:target_usernames])
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add_emails(topic, @opts[:target_emails])
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add_groups(topic, @opts[:target_group_names])
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if !@added_users.include?(user)
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topic.topic_allowed_users.build(user_id: @user.id)
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end
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end
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def save_topic(topic)
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topic.disable_rate_limits! if @opts[:skip_validations]
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unless topic.save(validate: !@opts[:skip_validations])
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rollback_from_errors!(topic)
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end
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end
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def add_users(topic, usernames)
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return unless usernames
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names = usernames.split(',').flatten
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len = 0
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User.includes(:user_option).where(username: names).find_each do |user|
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check_can_send_permission!(topic, user)
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@added_users << user
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topic.topic_allowed_users.build(user_id: user.id)
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len += 1
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end
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rollback_with!(topic, :target_user_not_found) unless len == names.length
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end
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def add_emails(topic, emails)
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return unless emails
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begin
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emails = emails.split(',').flatten
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len = 0
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emails.each do |email|
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display_name = email.split("@").first
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if user = find_or_create_user(email, display_name)
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if !@added_users.include?(user)
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@added_users << user
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topic.topic_allowed_users.build(user_id: user.id)
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end
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len += 1
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end
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end
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ensure
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rollback_with!(topic, :target_user_not_found) unless len == emails.length
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end
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end
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def add_groups(topic, groups)
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return unless groups
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names = groups.split(',').flatten
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len = 0
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Group.where(name: names).each do |group|
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check_can_send_permission!(topic, group)
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topic.topic_allowed_groups.build(group_id: group.id)
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len += 1
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group.update_columns(has_messages: true) unless group.has_messages
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end
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rollback_with!(topic, :target_group_not_found) unless len == names.length
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end
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def check_can_send_permission!(topic, obj)
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unless @opts[:skip_validations] ||
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@guardian.can_send_private_message?(obj, notify_moderators: topic&.subtype == TopicSubtype.notify_moderators)
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rollback_with!(topic, :cant_send_pm)
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end
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end
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def find_or_create_user(email, display_name)
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user = User.find_by_email(email)
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if !user && SiteSetting.enable_staged_users
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username = UserNameSuggester.sanitize_username(display_name) if display_name.present?
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user = User.create!(
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email: email,
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username: UserNameSuggester.suggest(username.presence || email),
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name: display_name.presence || User.suggest_name(email),
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staged: true
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)
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end
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user
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end
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end
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