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191 lines
5.3 KiB
Ruby
191 lines
5.3 KiB
Ruby
#mixin for all guardian methods dealing with post permissions
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module PostGuardian
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# Can the user act on the post in a particular way.
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# taken_actions = the list of actions the user has already taken
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def post_can_act?(post, action_key, opts={})
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taken = opts[:taken_actions].try(:keys).to_a
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is_flag = PostActionType.is_flag?(action_key)
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already_taken_this_action = taken.any? && taken.include?(PostActionType.types[action_key])
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already_did_flagging = taken.any? && (taken & PostActionType.flag_types.values).any?
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if authenticated? && post
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# we allow flagging for trust level 1 and higher
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(is_flag && @user.has_trust_level?(TrustLevel[1]) && not(already_did_flagging)) ||
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# not a flagging action, and haven't done it already
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not(is_flag || already_taken_this_action) &&
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# nothing except flagging on archived topics
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not(post.topic.archived?) &&
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# nothing except flagging on deleted posts
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not(post.trashed?) &&
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# don't like your own stuff
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not(action_key == :like && is_my_own?(post)) &&
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# new users can't notify_user because they are not allowed to send private messages
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not(action_key == :notify_user && !@user.has_trust_level?(TrustLevel[1])) &&
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# no voting more than once on single vote topics
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not(action_key == :vote && opts[:voted_in_topic] && post.topic.has_meta_data_boolean?(:single_vote))
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end
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end
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def can_defer_flags?(post)
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is_staff? && post
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end
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# Can we see who acted on a post in a particular way?
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def can_see_post_actors?(topic, post_action_type_id)
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return true if is_admin?
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return false unless topic
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type_symbol = PostActionType.types[post_action_type_id]
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return false if type_symbol == :bookmark
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return can_see_flags?(topic) if PostActionType.is_flag?(type_symbol)
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if type_symbol == :vote
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# We can see votes if the topic allows for public voting
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return false if topic.has_meta_data_boolean?(:private_poll)
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end
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true
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end
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def can_delete_all_posts?(user)
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is_staff? &&
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user &&
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!user.admin? &&
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(user.first_post_created_at.nil? || user.first_post_created_at >= SiteSetting.delete_user_max_post_age.days.ago) &&
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user.post_count <= SiteSetting.delete_all_posts_max.to_i
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end
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# Creating Method
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def can_create_post?(parent)
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!SpamRule::AutoBlock.block?(@user) && (
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!parent ||
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!parent.category ||
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Category.post_create_allowed(self).where(:id => parent.category.id).count == 1
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)
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end
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# Editing Method
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def can_edit_post?(post)
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if Discourse.static_doc_topic_ids.include?(post.topic_id) && !is_admin?
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return false
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end
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if is_staff? || @user.has_trust_level?(TrustLevel[4])
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return true
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end
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if post.topic.archived? || post.user_deleted || post.deleted_at
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return false
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end
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if post.wiki && (@user.trust_level >= SiteSetting.min_trust_to_edit_wiki_post.to_i)
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return true
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end
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if is_my_own?(post)
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if post.hidden?
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return false if post.hidden_at.present? &&
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post.hidden_at >= SiteSetting.cooldown_minutes_after_hiding_posts.minutes.ago
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# If it's your own post and it's hidden, you can still edit it
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return true
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end
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return !post.edit_time_limit_expired?
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end
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false
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end
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# Deleting Methods
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def can_delete_post?(post)
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# Can't delete the first post
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return false if post.post_number == 1
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# Can't delete after post_edit_time_limit minutes have passed
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return false if !is_staff? && post.edit_time_limit_expired?
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# Can't delete posts in archived topics unless you are staff
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return false if !is_staff? && post.topic.archived?
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# You can delete your own posts
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return !post.user_deleted? if is_my_own?(post)
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is_staff?
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end
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# Recovery Method
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def can_recover_post?(post)
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is_staff? || (is_my_own?(post) && post.user_deleted && !post.deleted_at)
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end
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def can_delete_post_action?(post_action)
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# You can only undo your own actions
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is_my_own?(post_action) && not(post_action.is_private_message?) &&
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# Make sure they want to delete it within the window
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post_action.created_at > SiteSetting.post_undo_action_window_mins.minutes.ago
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end
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def can_see_post?(post)
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post.present? &&
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(is_admin? ||
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((is_moderator? || !post.deleted_at.present?) &&
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can_see_topic?(post.topic)))
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end
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def can_see_post_revision?(post_revision)
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return false unless post_revision
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can_view_post_revisions?(post_revision.post)
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end
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def can_view_post_revisions?(post)
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return false unless post
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if !post.hidden
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return true if post.wiki || SiteSetting.edit_history_visible_to_public || post.user.try(:edit_history_public)
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end
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authenticated? &&
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(is_staff? || @user.has_trust_level?(TrustLevel[4]) || @user.id == post.user_id) &&
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can_see_post?(post)
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end
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def can_vote?(post, opts={})
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post_can_act?(post,:vote, opts)
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end
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def can_change_post_owner?
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is_admin?
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end
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def can_wiki?
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is_staff? || @user.has_trust_level?(TrustLevel[4])
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end
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def can_change_post_type?
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is_staff?
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end
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def can_rebake?
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is_staff?
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end
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def can_see_flagged_posts?
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is_staff?
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end
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def can_see_deleted_posts?
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is_staff?
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end
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def can_unhide?(post)
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post.try(:hidden) && is_staff?
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end
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end
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