423 lines
13 KiB
Ruby
423 lines
13 KiB
Ruby
# frozen_string_literal: true
|
|
|
|
# mixin for all guardian methods dealing with post permissions
|
|
module PostGuardian
|
|
def unrestricted_link_posting?
|
|
authenticated? && (is_staff? || @user.in_any_groups?(SiteSetting.post_links_allowed_groups_map))
|
|
end
|
|
|
|
def link_posting_access
|
|
if unrestricted_link_posting?
|
|
"full"
|
|
elsif SiteSetting.allowed_link_domains.present?
|
|
"limited"
|
|
else
|
|
"none"
|
|
end
|
|
end
|
|
|
|
def can_post_link?(host: nil)
|
|
return false if host.blank?
|
|
|
|
unrestricted_link_posting? || SiteSetting.allowed_link_domains.split("|").include?(host)
|
|
end
|
|
|
|
# Can the user act on the post in a particular way.
|
|
# taken_actions = the list of actions the user has already taken
|
|
def post_can_act?(post, action_key, opts: {}, can_see_post: nil)
|
|
return false if !(can_see_post.nil? && can_see_post?(post)) && !can_see_post
|
|
|
|
# no warnings except for staff
|
|
if action_key == :notify_user &&
|
|
(
|
|
post.user.blank? ||
|
|
(!is_staff? && opts[:is_warning].present? && opts[:is_warning] == "true")
|
|
)
|
|
return false
|
|
end
|
|
|
|
taken = opts[:taken_actions].try(:keys).to_a
|
|
is_flag =
|
|
PostActionType.notify_flag_types[action_key] || PostActionType.custom_types[action_key]
|
|
already_taken_this_action = taken.any? && taken.include?(PostActionType.types[action_key])
|
|
already_did_flagging = taken.any? && (taken & PostActionType.notify_flag_types.values).any?
|
|
|
|
result =
|
|
if authenticated? && post
|
|
# Allow anonymous users to like if feature is enabled and short-circuit otherwise
|
|
return SiteSetting.allow_anonymous_likes? && (action_key == :like) if @user.anonymous?
|
|
|
|
# Silenced users can't flag
|
|
return false if is_flag && @user.silenced?
|
|
|
|
# Hidden posts can't be flagged
|
|
return false if is_flag && post.hidden?
|
|
|
|
# post made by staff, but we don't allow staff flags
|
|
return false if is_flag && (!SiteSetting.allow_flagging_staff?) && post&.user&.staff?
|
|
|
|
return false if is_flag && PostActionType.disabled_flag_types.keys.include?(action_key)
|
|
|
|
if action_key == :notify_user &&
|
|
!@user.in_any_groups?(SiteSetting.personal_message_enabled_groups_map)
|
|
# The modifier below is used to add additional permissions for notifying users.
|
|
# In core the only method of notifying a user is personal messages so we check if the
|
|
# user can PM. Plugins can extend the behavior of how users are notifier via `notify_user`
|
|
# post action, and this allows extension for that use case.
|
|
can_notify = false
|
|
can_notify =
|
|
DiscoursePluginRegistry.apply_modifier(
|
|
:post_guardian_can_notify_user,
|
|
can_notify,
|
|
self,
|
|
post,
|
|
)
|
|
return can_notify
|
|
end
|
|
|
|
# we allow flagging for trust level 1 and higher
|
|
# always allowed for private messages
|
|
(
|
|
is_flag && not(already_did_flagging) &&
|
|
(
|
|
@user.in_any_groups?(SiteSetting.flag_post_allowed_groups_map) ||
|
|
post.topic.private_message?
|
|
)
|
|
) ||
|
|
# not a flagging action, and haven't done it already
|
|
not(is_flag || already_taken_this_action) &&
|
|
# nothing except flagging on archived topics
|
|
not(post.topic&.archived?) &&
|
|
# nothing except flagging on deleted posts
|
|
not(post.trashed?) &&
|
|
# don't like your own stuff
|
|
not(action_key == :like && (post.user.blank? || is_my_own?(post)))
|
|
end
|
|
|
|
!!result
|
|
end
|
|
|
|
def can_lock_post?(post)
|
|
can_see_post?(post) && is_staff?
|
|
end
|
|
|
|
# Can we see who acted on a post in a particular way?
|
|
def can_see_post_actors?(topic, post_action_type_id)
|
|
return true if is_admin?
|
|
return false unless topic
|
|
|
|
type_symbol = PostActionType.types[post_action_type_id]
|
|
|
|
return false if type_symbol == :bookmark
|
|
return false if type_symbol == :notify_user && !is_moderator?
|
|
|
|
return can_see_flags?(topic) if PostActionType.is_flag?(type_symbol)
|
|
|
|
true
|
|
end
|
|
|
|
def can_delete_all_posts?(user)
|
|
is_staff? && user && !user.admin? &&
|
|
(
|
|
is_admin? ||
|
|
(
|
|
(
|
|
user.first_post_created_at.nil? ||
|
|
user.first_post_created_at >= SiteSetting.delete_user_max_post_age.days.ago
|
|
) && user.post_count <= SiteSetting.delete_all_posts_max.to_i
|
|
)
|
|
)
|
|
end
|
|
|
|
def can_create_post?(topic)
|
|
return can_create_post_in_topic?(topic) if !topic
|
|
|
|
key = topic_memoize_key(topic)
|
|
@can_create_post ||= {}
|
|
|
|
@can_create_post.fetch(key) { @can_create_post[key] = can_create_post_in_topic?(topic) }
|
|
end
|
|
|
|
def can_edit_post?(post)
|
|
return false if Discourse.static_doc_topic_ids.include?(post.topic_id) && !is_admin?
|
|
|
|
return true if is_admin?
|
|
|
|
# Must be staff to edit a locked post
|
|
return false if post.locked? && !is_staff?
|
|
|
|
if (is_staff? || is_in_edit_post_groups? || is_category_group_moderator?(post.topic&.category))
|
|
return can_create_post?(post.topic)
|
|
end
|
|
|
|
return false if post.topic&.archived? || post.user_deleted || post.deleted_at
|
|
|
|
# Editing a shared draft.
|
|
if (
|
|
can_see_post?(post) && can_create_post?(post.topic) &&
|
|
post.topic.category_id == SiteSetting.shared_drafts_category.to_i &&
|
|
can_see_category?(post.topic.category) && can_see_shared_draft?
|
|
)
|
|
return true
|
|
end
|
|
|
|
if post.wiki && @user.in_any_groups?(SiteSetting.edit_wiki_post_allowed_groups_map)
|
|
return can_create_post?(post.topic)
|
|
end
|
|
|
|
return false if !trusted_with_post_edits?
|
|
|
|
if is_my_own?(post)
|
|
return false if @user.silenced?
|
|
|
|
return can_edit_hidden_post?(post) if post.hidden?
|
|
|
|
if post.is_first_post? && post.topic.category_allows_unlimited_owner_edits_on_first_post?
|
|
return true
|
|
end
|
|
|
|
return !post.edit_time_limit_expired?(@user)
|
|
end
|
|
|
|
if post.is_category_description?
|
|
return true if can_edit_category_description?(post.topic.category)
|
|
end
|
|
|
|
false
|
|
end
|
|
|
|
def is_in_edit_post_groups?
|
|
SiteSetting.edit_all_post_groups.present? &&
|
|
user.in_any_groups?(SiteSetting.edit_all_post_groups.to_s.split("|").map(&:to_i))
|
|
end
|
|
|
|
def can_edit_hidden_post?(post)
|
|
return false if post.nil?
|
|
post.hidden_at.nil? ||
|
|
post.hidden_at < SiteSetting.cooldown_minutes_after_hiding_posts.minutes.ago
|
|
end
|
|
|
|
def can_delete_post_or_topic?(post)
|
|
post.is_first_post? ? post.topic && can_delete_topic?(post.topic) : can_delete_post?(post)
|
|
end
|
|
|
|
def can_delete_post?(post)
|
|
return false if !can_see_post?(post)
|
|
|
|
# Can't delete the first post
|
|
return false if post.is_first_post?
|
|
|
|
return true if is_staff? || is_category_group_moderator?(post.topic&.category)
|
|
|
|
return true if user.in_any_groups?(SiteSetting.delete_all_posts_and_topics_allowed_groups_map)
|
|
|
|
# Can't delete posts in archived topics unless you are staff
|
|
return false if post.topic&.archived?
|
|
|
|
# You can delete your own posts
|
|
if is_my_own?(post)
|
|
if (
|
|
SiteSetting.max_post_deletions_per_minute < 1 ||
|
|
SiteSetting.max_post_deletions_per_day < 1
|
|
)
|
|
return false
|
|
end
|
|
return true if !post.user_deleted?
|
|
end
|
|
|
|
false
|
|
end
|
|
|
|
def can_permanently_delete_post?(post)
|
|
return false if !SiteSetting.can_permanently_delete
|
|
return false if !post
|
|
return false if post.is_first_post?
|
|
return false if !is_admin? || !can_edit_post?(post)
|
|
return false if !post.deleted_at
|
|
if post.deleted_by_id == @user.id && post.deleted_at >= Post::PERMANENT_DELETE_TIMER.ago
|
|
return false
|
|
end
|
|
true
|
|
end
|
|
|
|
def can_recover_post?(post)
|
|
return false unless post
|
|
|
|
# PERF, vast majority of the time topic will not be deleted
|
|
topic = (post.topic || Topic.with_deleted.find(post.topic_id)) if post.topic_id
|
|
return true if can_moderate_topic?(topic) && !!post.deleted_at
|
|
|
|
if is_my_own?(post)
|
|
if (
|
|
SiteSetting.max_post_deletions_per_minute < 1 ||
|
|
SiteSetting.max_post_deletions_per_day < 1
|
|
)
|
|
return false
|
|
end
|
|
return true if post.user_deleted && !post.deleted_at
|
|
end
|
|
|
|
false
|
|
end
|
|
|
|
def can_delete_post_action?(post_action)
|
|
return false unless is_my_own?(post_action) && !post_action.is_private_message?
|
|
|
|
ok_to_delete =
|
|
post_action.created_at > SiteSetting.post_undo_action_window_mins.minutes.ago &&
|
|
!post_action.post&.topic&.archived?
|
|
|
|
# NOTE: This looks strange...but we are checking if someone is posting anonymously
|
|
# as a AnonymousUser model, _not_ as Guardian::AnonymousUser which is a different thing
|
|
# used when !authenticated?
|
|
if authenticated? && is_anonymous?
|
|
return(
|
|
ok_to_delete && SiteSetting.allow_anonymous_likes? && post_action.is_like? &&
|
|
is_my_own?(post_action)
|
|
)
|
|
end
|
|
|
|
ok_to_delete
|
|
end
|
|
|
|
def can_receive_post_notifications?(post)
|
|
return false if !authenticated?
|
|
|
|
if is_admin? && SiteSetting.suppress_secured_categories_from_admin
|
|
topic = post.topic
|
|
if !topic.private_message? && topic.category.read_restricted
|
|
return secure_category_ids.include?(topic.category_id)
|
|
end
|
|
end
|
|
can_see_post?(post)
|
|
end
|
|
|
|
def can_see_post?(post)
|
|
return false if post.blank?
|
|
return true if is_admin?
|
|
return false unless can_see_post_topic?(post)
|
|
unless post.user == @user || Topic.visible_post_types(@user).include?(post.post_type)
|
|
return false
|
|
end
|
|
return true if is_moderator? || is_category_group_moderator?(post.topic.category)
|
|
if (!post.trashed? || can_see_deleted_post?(post)) &&
|
|
(!post.hidden? || can_see_hidden_post?(post))
|
|
return true
|
|
end
|
|
false
|
|
end
|
|
|
|
def can_see_deleted_post?(post)
|
|
return false if !post.trashed?
|
|
return false if @user.anonymous?
|
|
return true if is_staff?
|
|
post.deleted_by_id == @user.id && @user.has_trust_level?(TrustLevel[4])
|
|
end
|
|
|
|
def can_see_hidden_post?(post)
|
|
if SiteSetting.hidden_post_visible_groups_map.include?(Group::AUTO_GROUPS[:everyone])
|
|
return true
|
|
end
|
|
return false if anonymous?
|
|
return true if is_staff?
|
|
post.user_id == @user.id || @user.in_any_groups?(SiteSetting.hidden_post_visible_groups_map)
|
|
end
|
|
|
|
def can_view_edit_history?(post)
|
|
return false unless post
|
|
|
|
if !post.hidden
|
|
return true if post.wiki || SiteSetting.edit_history_visible_to_public
|
|
end
|
|
|
|
authenticated? && (is_staff? || @user.id == post.user_id) && can_see_post?(post)
|
|
end
|
|
|
|
def can_change_post_owner?
|
|
return true if is_admin?
|
|
|
|
SiteSetting.moderators_change_post_ownership && is_staff?
|
|
end
|
|
|
|
def can_change_post_timestamps?
|
|
is_staff?
|
|
end
|
|
|
|
def can_wiki?(post)
|
|
return false unless authenticated?
|
|
return true if is_staff? || @user.has_trust_level?(TrustLevel[4])
|
|
|
|
if @user.in_any_groups?(SiteSetting.self_wiki_allowed_groups_map) && is_my_own?(post)
|
|
return false if post.hidden?
|
|
return !post.edit_time_limit_expired?(@user)
|
|
end
|
|
|
|
false
|
|
end
|
|
|
|
def can_change_post_type?
|
|
is_staff?
|
|
end
|
|
|
|
def can_rebake?
|
|
is_staff? || @user.has_trust_level?(TrustLevel[4])
|
|
end
|
|
|
|
def can_see_flagged_posts?
|
|
is_staff?
|
|
end
|
|
|
|
def can_see_deleted_posts?(category = nil)
|
|
is_staff? || is_category_group_moderator?(category) ||
|
|
@user.in_any_groups?(SiteSetting.delete_all_posts_and_topics_allowed_groups_map)
|
|
end
|
|
|
|
def can_view_raw_email?(post)
|
|
post && @user.in_any_groups?(SiteSetting.view_raw_email_allowed_groups_map)
|
|
end
|
|
|
|
def can_unhide?(post)
|
|
post.try(:hidden) && is_staff?
|
|
end
|
|
|
|
def can_skip_bump?
|
|
is_staff? || @user.has_trust_level?(TrustLevel[4])
|
|
end
|
|
|
|
def trusted_with_post_edits?
|
|
is_staff? || @user.in_any_groups?(SiteSetting.edit_post_allowed_groups_map)
|
|
end
|
|
|
|
private
|
|
|
|
def can_create_post_in_topic?(topic)
|
|
if !SiteSetting.enable_system_message_replies? && topic.try(:subtype) == "system_message"
|
|
return false
|
|
end
|
|
|
|
(
|
|
!SpamRule::AutoSilence.prevent_posting?(@user) ||
|
|
(!!topic.try(:private_message?) && topic.allowed_users.include?(@user))
|
|
) &&
|
|
(
|
|
!topic || !topic.category ||
|
|
Category.post_create_allowed(self).where(id: topic.category.id).count == 1
|
|
)
|
|
end
|
|
|
|
def topic_memoize_key(topic)
|
|
# Milliseconds precision on Topic#updated_at so that we don't use memoized results after topic has been updated.
|
|
"#{topic.id}-#{(topic.updated_at.to_f * 1000).to_i}"
|
|
end
|
|
|
|
def can_see_post_topic?(post)
|
|
topic = post.topic
|
|
return false if !topic
|
|
|
|
key = topic_memoize_key(topic)
|
|
@can_see_post_topic ||= {}
|
|
|
|
@can_see_post_topic.fetch(key) { @can_see_post_topic[key] = can_see_topic?(topic) }
|
|
end
|
|
end
|