403 lines
12 KiB
Ruby
403 lines
12 KiB
Ruby
# frozen_string_literal: true
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#mixin for all guardian methods dealing with topic permissions
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module TopicGuardian
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def can_remove_allowed_users?(topic, target_user = nil)
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is_staff? || (topic.user == @user && @user.has_trust_level?(TrustLevel[2])) ||
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(
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topic.allowed_users.count > 1 && topic.user != target_user &&
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!!(target_user && user == target_user)
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)
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end
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def can_review_topic?(topic)
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return false if anonymous? || topic.nil?
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return true if is_staff?
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is_category_group_moderator?(topic.category)
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end
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def can_moderate_topic?(topic)
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return false if anonymous? || topic.nil?
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return true if is_staff?
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can_perform_action_available_to_group_moderators?(topic)
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end
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def can_create_shared_draft?
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SiteSetting.shared_drafts_enabled? && can_see_shared_draft?
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end
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def can_see_shared_draft?
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@user.in_any_groups?(SiteSetting.shared_drafts_allowed_groups_map)
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end
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def can_create_whisper?
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@user.whisperer?
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end
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def can_see_whispers?(_topic = nil)
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@user.whisperer?
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end
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def can_publish_topic?(topic, category)
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can_see_shared_draft? && can_see?(topic) && can_create_topic_on_category?(category)
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end
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# Creating Methods
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def can_create_topic?(parent)
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is_staff? ||
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(
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user && user.trust_level >= SiteSetting.min_trust_to_create_topic.to_i &&
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can_create_post?(parent) && Category.topic_create_allowed(self).limit(1).count == 1
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)
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end
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def can_create_topic_on_category?(category)
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# allow for category to be a number as well
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category_id = Category === category ? category.id : category
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can_create_topic?(nil) &&
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(!category || Category.topic_create_allowed(self).where(id: category_id).count == 1)
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end
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def can_move_topic_to_category?(category)
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category =
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(
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if Category === category
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category
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else
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Category.find(category || SiteSetting.uncategorized_category_id)
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end
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)
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is_staff? || (can_create_topic_on_category?(category) && !category.require_topic_approval?)
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end
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def can_create_post_on_topic?(topic)
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# No users can create posts on deleted topics
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return false if topic.blank?
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return false if topic.trashed?
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return true if is_admin?
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trusted =
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(authenticated? && user.has_trust_level?(TrustLevel[4])) || is_moderator? ||
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can_perform_action_available_to_group_moderators?(topic)
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(!(topic.closed? || topic.archived?) || trusted) && can_create_post?(topic)
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end
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# Editing Method
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def can_edit_topic?(topic)
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return false if Discourse.static_doc_topic_ids.include?(topic.id) && !is_admin?
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return false unless can_see?(topic)
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first_post = topic.first_post
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return false if first_post&.locked? && !is_staff?
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return true if is_admin?
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return true if is_moderator? && can_create_post?(topic)
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return true if is_category_group_moderator?(topic.category)
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# can't edit topics in secured categories where you don't have permission to create topics
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# except for a tiny edge case where the topic is uncategorized and you are trying
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# to fix it but uncategorized is disabled
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if (
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SiteSetting.allow_uncategorized_topics ||
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topic.category_id != SiteSetting.uncategorized_category_id
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)
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return false if !can_create_topic_on_category?(topic.category)
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end
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# Editing a shared draft.
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if (
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!topic.archived && !topic.private_message? &&
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topic.category_id == SiteSetting.shared_drafts_category.to_i &&
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can_see_category?(topic.category) && can_see_shared_draft? && can_create_post?(topic)
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)
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return true
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end
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if (
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is_in_edit_post_groups? && topic.archived && !topic.private_message? &&
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can_create_post?(topic)
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)
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return true
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end
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if (
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is_in_edit_topic_groups? && !topic.archived && !topic.private_message? &&
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can_create_post?(topic)
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)
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return true
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end
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return false if topic.archived
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is_my_own?(topic) && !topic.edit_time_limit_expired?(user) && !first_post&.locked? &&
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(!first_post&.hidden? || can_edit_hidden_post?(first_post))
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end
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def is_in_edit_topic_groups?
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SiteSetting.edit_all_topic_groups.present? &&
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user.in_any_groups?(SiteSetting.edit_all_topic_groups.to_s.split("|").map(&:to_i))
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end
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def can_recover_topic?(topic)
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if is_staff? || (topic&.category && is_category_group_moderator?(topic.category)) ||
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(SiteSetting.tl4_delete_posts_and_topics && user&.has_trust_level?(TrustLevel[4]))
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!!(topic && topic.deleted_at)
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else
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topic && can_recover_post?(topic.ordered_posts.first)
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end
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end
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def can_delete_topic?(topic)
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!topic.trashed? &&
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(
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is_staff? ||
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(
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is_my_own?(topic) && topic.posts_count <= 1 && topic.created_at &&
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topic.created_at > 24.hours.ago
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) || is_category_group_moderator?(topic.category) ||
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(SiteSetting.tl4_delete_posts_and_topics && user.has_trust_level?(TrustLevel[4]))
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) && !topic.is_category_topic? && !Discourse.static_doc_topic_ids.include?(topic.id)
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end
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def can_permanently_delete_topic?(topic)
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return false if !SiteSetting.can_permanently_delete
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return false if !topic
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# Ensure that all posts (including small actions) are at least soft
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# deleted.
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return false if topic.posts_count > 0
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# All other posts that were deleted still must be permanently deleted
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# before the topic can be deleted with the exception of small action
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# posts that will be deleted right before the topic is.
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all_posts_count =
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Post
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.with_deleted
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.where(topic_id: topic.id)
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.where(
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post_type: [Post.types[:regular], Post.types[:moderator_action], Post.types[:whisper]],
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)
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.count
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return false if all_posts_count > 1
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return false if !is_admin? || !can_see_topic?(topic)
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return false if !topic.deleted_at
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if topic.deleted_by_id == @user.id && topic.deleted_at >= Post::PERMANENT_DELETE_TIMER.ago
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return false
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end
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true
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end
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def can_toggle_topic_visibility?(topic)
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can_moderate?(topic) || can_perform_action_available_to_group_moderators?(topic)
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end
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alias can_create_unlisted_topic? can_toggle_topic_visibility?
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def can_convert_topic?(topic)
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return false if topic.blank?
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return false if topic.trashed?
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return false if topic.is_category_topic?
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return true if is_admin?
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return false if !@user.in_any_groups?(SiteSetting.personal_message_enabled_groups_map)
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is_moderator? && can_create_post?(topic)
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end
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def can_reply_as_new_topic?(topic)
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authenticated? && topic && @user.has_trust_level?(TrustLevel[1])
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end
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def can_see_deleted_topics?(category)
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is_staff? || is_category_group_moderator?(category) ||
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(SiteSetting.tl4_delete_posts_and_topics && user&.has_trust_level?(TrustLevel[4]))
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end
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# Accepts an array of `Topic#id` and returns an array of `Topic#id` which the user can see.
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def can_see_topic_ids(topic_ids: [], hide_deleted: true)
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topic_ids = topic_ids.compact
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return topic_ids if is_admin?
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return [] if topic_ids.blank?
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default_scope = Topic.unscoped.where(id: topic_ids)
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# When `hide_deleted` is `true`, hide deleted topics if user is not staff or category moderator
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if hide_deleted && !is_staff?
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if category_group_moderation_allowed?
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default_scope = default_scope.where(<<~SQL)
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(
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deleted_at IS NULL OR
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(
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deleted_at IS NOT NULL
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AND topics.category_id IN (#{category_group_moderator_scope.select(:id).to_sql})
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)
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)
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SQL
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else
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default_scope = default_scope.where("deleted_at IS NULL")
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end
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end
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# Filter out topics with shared drafts if user cannot see shared drafts
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if !can_see_shared_draft?
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default_scope =
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default_scope.left_outer_joins(:shared_draft).where("shared_drafts.id IS NULL")
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end
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all_topics_scope =
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if authenticated?
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Topic.unscoped.merge(
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secured_regular_topic_scope(default_scope, topic_ids: topic_ids).or(
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private_message_topic_scope(default_scope),
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),
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)
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else
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Topic.unscoped.merge(secured_regular_topic_scope(default_scope, topic_ids: topic_ids))
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end
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all_topics_scope.pluck(:id)
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end
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def can_see_topic?(topic, hide_deleted = true)
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return false unless topic
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return true if is_admin?
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return false if hide_deleted && topic.deleted_at && !can_see_deleted_topics?(topic.category)
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if topic.private_message?
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return authenticated? && topic.all_allowed_users.where(id: @user.id).exists?
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end
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return false if topic.shared_draft && !can_see_shared_draft?
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category = topic.category
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can_see_category?(category) &&
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(
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!category.read_restricted || !is_staged? || secure_category_ids.include?(category.id) ||
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topic.user == user
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)
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end
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def can_see_unlisted_topics?
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is_staff? || @user.has_trust_level?(TrustLevel[4])
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end
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def can_get_access_to_topic?(topic)
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topic&.access_topic_via_group.present? && authenticated?
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end
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def filter_allowed_categories(records, category_id_column: "topics.category_id")
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return records if is_admin? && !SiteSetting.suppress_secured_categories_from_admin
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records =
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if allowed_category_ids.size == 0
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records.where("#{category_id_column} IS NULL")
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else
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records.where(
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"#{category_id_column} IS NULL or #{category_id_column} IN (?)",
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allowed_category_ids,
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)
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end
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records.references(:categories)
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end
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def can_edit_featured_link?(category_id)
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return false unless SiteSetting.topic_featured_link_enabled
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return false if @user.trust_level == TrustLevel.levels[:newuser]
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Category.where(
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id: category_id || SiteSetting.uncategorized_category_id,
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topic_featured_link_allowed: true,
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).exists?
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end
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def can_update_bumped_at?
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is_staff? || @user.has_trust_level?(TrustLevel[4])
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end
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def can_banner_topic?(topic)
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topic && authenticated? && !topic.private_message? && is_staff?
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end
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def can_edit_tags?(topic)
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return false unless can_tag_topics?
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return false if topic.private_message? && !can_tag_pms?
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return true if can_edit_topic?(topic)
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if topic&.first_post&.wiki &&
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(@user.trust_level >= SiteSetting.min_trust_to_edit_wiki_post.to_i)
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return can_create_post?(topic)
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end
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false
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end
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def can_perform_action_available_to_group_moderators?(topic)
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return false if anonymous? || topic.nil?
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return true if is_staff?
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return true if @user.has_trust_level?(TrustLevel[4])
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is_category_group_moderator?(topic.category)
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end
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alias can_archive_topic? can_perform_action_available_to_group_moderators?
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alias can_close_topic? can_perform_action_available_to_group_moderators?
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alias can_open_topic? can_perform_action_available_to_group_moderators?
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alias can_split_merge_topic? can_perform_action_available_to_group_moderators?
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alias can_edit_staff_notes? can_perform_action_available_to_group_moderators?
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alias can_pin_unpin_topic? can_perform_action_available_to_group_moderators?
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def can_move_posts?(topic)
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return false if is_silenced?
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can_perform_action_available_to_group_moderators?(topic)
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end
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def affected_by_slow_mode?(topic)
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topic&.slow_mode_seconds.to_i > 0 && @user.human? && !is_staff?
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end
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private
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def private_message_topic_scope(scope)
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pm_scope = scope.private_messages_for_user(user)
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pm_scope = pm_scope.or(scope.where(<<~SQL)) if is_moderator?
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topics.subtype = '#{TopicSubtype.moderator_warning}'
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OR topics.id IN (#{Topic.has_flag_scope.select(:topic_id).to_sql})
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SQL
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pm_scope
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end
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def secured_regular_topic_scope(scope, topic_ids:)
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secured_scope = Topic.unscoped.secured(self)
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# Staged users are allowed to see their own topics in read restricted categories when Category#email_in and
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# Category#email_in_allow_strangers has been configured.
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if is_staged?
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sql = <<~SQL
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topics.id IN (
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SELECT
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topics.id
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FROM topics
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INNER JOIN categories ON categories.id = topics.category_id
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WHERE categories.read_restricted
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AND categories.email_in IS NOT NULL
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AND categories.email_in_allow_strangers
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AND topics.user_id = :user_id
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AND topics.id IN (:topic_ids)
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)
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SQL
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secured_scope =
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secured_scope.or(Topic.unscoped.where(sql, user_id: user.id, topic_ids: topic_ids))
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end
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scope.listable_topics.merge(secured_scope)
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end
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end
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