debian-mirror-gitlab/app/models/note.rb
2020-04-22 19:07:51 +05:30

594 lines
17 KiB
Ruby

# frozen_string_literal: true
# A note on the root of an issue, merge request, commit, or snippet.
#
# A note of this type is never resolvable.
class Note < ApplicationRecord
extend ActiveModel::Naming
include Participable
include Mentionable
include Awardable
include Importable
include FasterCacheKeys
include Redactable
include CacheMarkdownField
include AfterCommitQueue
include ResolvableNote
include Editable
include Gitlab::SQL::Pattern
include ThrottledTouch
include FromUnion
module SpecialRole
FIRST_TIME_CONTRIBUTOR = :first_time_contributor
class << self
def values
constants.map {|const| self.const_get(const, false)}
end
def value?(val)
values.include?(val)
end
end
end
cache_markdown_field :note, pipeline: :note, issuable_state_filter_enabled: true
redact_field :note
TYPES_RESTRICTED_BY_ABILITY = {
branch: :download_code
}.freeze
# Aliases to make application_helper#edited_time_ago_with_tooltip helper work properly with notes.
# See https://gitlab.com/gitlab-org/gitlab-foss/merge_requests/10392/diffs#note_28719102
alias_attribute :last_edited_at, :updated_at
alias_attribute :last_edited_by, :updated_by
# Attribute containing rendered and redacted Markdown as generated by
# Banzai::ObjectRenderer.
attr_accessor :redacted_note_html
# Total of all references as generated by Banzai::ObjectRenderer
attr_accessor :total_reference_count
# Number of user visible references as generated by Banzai::ObjectRenderer
attr_accessor :user_visible_reference_count
# Attribute used to store the attributes that have been changed by quick actions.
attr_accessor :commands_changes
# A special role that may be displayed on issuable's discussions
attr_accessor :special_role
default_value_for :system, false
attr_mentionable :note, pipeline: :note
participant :author
belongs_to :project
belongs_to :noteable, polymorphic: true # rubocop:disable Cop/PolymorphicAssociations
belongs_to :author, class_name: "User"
belongs_to :updated_by, class_name: "User"
belongs_to :last_edited_by, class_name: 'User'
has_many :todos
# The delete_all definition is required here in order
# to generate the correct DELETE sql for
# suggestions.delete_all calls
has_many :suggestions, -> { order(:relative_order) },
inverse_of: :note, dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
has_many :events, as: :target, dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
has_one :system_note_metadata
has_one :note_diff_file, inverse_of: :diff_note, foreign_key: :diff_note_id
has_many :diff_note_positions
delegate :gfm_reference, :local_reference, to: :noteable
delegate :name, to: :project, prefix: true
delegate :name, :email, to: :author, prefix: true
delegate :title, to: :noteable, allow_nil: true
validates :note, presence: true
validates :note, length: { maximum: Gitlab::Database::MAX_TEXT_SIZE_LIMIT }
validates :project, presence: true, if: :for_project_noteable?
# Attachments are deprecated and are handled by Markdown uploader
validates :attachment, file_size: { maximum: :max_attachment_size }
validates :noteable_type, presence: true
validates :noteable_id, presence: true, unless: [:for_commit?, :importing?]
validates :commit_id, presence: true, if: :for_commit?
validates :author, presence: true
validates :discussion_id, presence: true, format: { with: /\A\h{40}\z/ }
validate unless: [:for_commit?, :importing?, :skip_project_check?] do |note|
unless note.noteable.try(:project) == note.project
errors.add(:project, 'does not match noteable project')
end
end
validate :does_not_exceed_notes_limit?, on: :create, unless: [:system?, :importing?]
# @deprecated attachments are handler by the MarkdownUploader
mount_uploader :attachment, AttachmentUploader
# Scopes
scope :for_commit_id, ->(commit_id) { where(noteable_type: "Commit", commit_id: commit_id) }
scope :system, -> { where(system: true) }
scope :user, -> { where(system: false) }
scope :common, -> { where(noteable_type: ["", nil]) }
scope :fresh, -> { order(created_at: :asc, id: :asc) }
scope :updated_after, ->(time) { where('updated_at > ?', time) }
scope :inc_author_project, -> { includes(:project, :author) }
scope :inc_author, -> { includes(:author) }
scope :inc_relations_for_view, -> do
includes(:project, { author: :status }, :updated_by, :resolved_by, :award_emoji,
{ system_note_metadata: :description_version }, :note_diff_file, :diff_note_positions, :suggestions)
end
scope :with_notes_filter, -> (notes_filter) do
case notes_filter
when UserPreference::NOTES_FILTERS[:only_comments]
user
when UserPreference::NOTES_FILTERS[:only_activity]
system
else
all
end
end
scope :diff_notes, -> { where(type: %w(LegacyDiffNote DiffNote)) }
scope :new_diff_notes, -> { where(type: 'DiffNote') }
scope :non_diff_notes, -> { where(type: ['Note', 'DiscussionNote', nil]) }
scope :with_associations, -> do
# FYI noteable cannot be loaded for LegacyDiffNote for commits
includes(:author, :noteable, :updated_by,
project: [:project_members, :namespace, { group: [:group_members] }])
end
scope :with_metadata, -> { includes(:system_note_metadata) }
scope :for_note_or_capitalized_note, ->(text) { where(note: [text, text.capitalize]) }
scope :like_note_or_capitalized_note, ->(text) { where('(note LIKE ? OR note LIKE ?)', text, text.capitalize) }
before_validation :nullify_blank_type, :nullify_blank_line_code
after_save :keep_around_commit, if: :for_project_noteable?, unless: :importing?
after_save :expire_etag_cache, unless: :importing?
after_save :touch_noteable, unless: :importing?
after_destroy :expire_etag_cache
after_save :store_mentions!, if: :any_mentionable_attributes_changed?
class << self
def model_name
ActiveModel::Name.new(self, nil, 'note')
end
def discussions(context_noteable = nil)
Discussion.build_collection(all.includes(:noteable).fresh, context_noteable)
end
# Note: Where possible consider using Discussion#lazy_find to return
# Discussions in order to benefit from having records batch loaded.
def find_discussion(discussion_id)
notes = where(discussion_id: discussion_id).fresh.to_a
return if notes.empty?
Discussion.build(notes)
end
# Group diff discussions by line code or file path.
# It is not needed to group by line code when comment is
# on an image.
def grouped_diff_discussions(diff_refs = nil)
groups = {}
diff_notes.fresh.discussions.each do |discussion|
group_key =
if discussion.on_image?
discussion.file_new_path
else
discussion.line_code_in_diffs(diff_refs)
end
if group_key
discussions = groups[group_key] ||= []
discussions << discussion
end
end
groups
end
def positions
where.not(position: nil)
.select(:id, :type, :position) # ActiveRecord needs id and type for typecasting.
.map(&:position)
end
def count_for_collection(ids, type)
user.select('noteable_id', 'COUNT(*) as count')
.group(:noteable_id)
.where(noteable_type: type, noteable_id: ids)
end
def has_special_role?(role, note)
note.special_role == role
end
def search(query)
fuzzy_search(query, [:note])
end
end
# rubocop: disable CodeReuse/ServiceClass
def system_note_with_references?
return unless system?
if force_cross_reference_regex_check?
matches_cross_reference_regex?
else
::SystemNotes::IssuablesService.cross_reference?(note)
end
end
# rubocop: enable CodeReuse/ServiceClass
def diff_note?
false
end
def active?
true
end
def max_attachment_size
Gitlab::CurrentSettings.max_attachment_size.megabytes.to_i
end
def hook_attrs
Gitlab::HookData::NoteBuilder.new(self).build
end
def supports_suggestion?
false
end
def for_commit?
noteable_type == "Commit"
end
def for_issue?
noteable_type == "Issue"
end
def for_merge_request?
noteable_type == "MergeRequest"
end
def for_snippet?
noteable_type == "Snippet"
end
def for_personal_snippet?
noteable.is_a?(PersonalSnippet)
end
def for_project_noteable?
!for_personal_snippet?
end
def for_issuable?
for_issue? || for_merge_request?
end
def skip_project_check?
!for_project_noteable?
end
def commit
@commit ||= project.commit(commit_id) if commit_id.present?
end
# Notes on merge requests and commits can be traced back to one or several
# MRs. This method returns a relation if the note is for one of these types,
# or nil if it is a note on some other object.
def merge_requests
if for_commit?
project.merge_requests.by_commit_sha(commit_id)
elsif for_merge_request?
MergeRequest.id_in(noteable_id)
else
nil
end
end
# override to return commits, which are not active record
def noteable
return commit if for_commit?
super
rescue
# Temp fix to prevent app crash
# if note commit id doesn't exist
nil
end
# FIXME: Hack for polymorphic associations with STI
# For more information visit http://api.rubyonrails.org/classes/ActiveRecord/Associations/ClassMethods.html#label-Polymorphic+Associations
def noteable_type=(noteable_type)
super(noteable_type.to_s.classify.constantize.base_class.to_s)
end
def noteable_assignee_or_author?(user)
return false unless user
return noteable.assignee_or_author?(user) if [MergeRequest, Issue].include?(noteable.class)
noteable.author_id == user.id
end
def special_role=(role)
raise "Role is undefined, #{role} not found in #{SpecialRole.values}" unless SpecialRole.value?(role)
@special_role = role
end
def has_special_role?(role)
self.class.has_special_role?(role, self)
end
def specialize_for_first_contribution!(noteable)
return unless noteable.author_id == self.author_id
self.special_role = Note::SpecialRole::FIRST_TIME_CONTRIBUTOR
end
def confidential?
confidential || noteable.try(:confidential?)
end
def editable?
!system?
end
# Since we're using `updated_at` as `last_edited_at`, it could be touched by transforming / resolving a note.
# This makes sure it is only marked as edited when the note body is updated.
def edited?
return false if updated_by.blank?
super
end
# This method is to be used for checking read permissions on a note instead of `system_note_with_references_visible_for?`
def readable_by?(user)
# note_policy accounts for #system_note_with_references_visible_for?(user) check when granting read access
Ability.allowed?(user, :read_note, self)
end
def award_emoji?
can_be_award_emoji? && contains_emoji_only?
end
def emoji_awardable?
!system?
end
def can_be_award_emoji?
noteable.is_a?(Awardable) && !part_of_discussion?
end
def contains_emoji_only?
note =~ /\A#{Banzai::Filter::EmojiFilter.emoji_pattern}\s?\Z/
end
def to_ability_name
model_name.singular
end
def noteable_ability_name
for_snippet? ? 'snippet' : noteable_type.demodulize.underscore
end
def can_be_discussion_note?
self.noteable.supports_discussions? && !part_of_discussion?
end
def can_create_todo?
# Skip system notes, and notes on project snippet
!system? && !for_snippet?
end
def discussion_class(noteable = nil)
# When commit notes are rendered on an MR's Discussion page, they are
# displayed in one discussion instead of individually.
# See also `#discussion_id` and `Discussion.override_discussion_id`.
if noteable && noteable != self.noteable
OutOfContextDiscussion
else
IndividualNoteDiscussion
end
end
# See `Discussion.override_discussion_id` for details.
def discussion_id(noteable = nil)
discussion_class(noteable).override_discussion_id(self) || super() || ensure_discussion_id
end
# Returns a discussion containing just this note.
# This method exists as an alternative to `#discussion` to use when the methods
# we intend to call on the Discussion object don't require it to have all of its notes,
# and just depend on the first note or the type of discussion. This saves us a DB query.
def to_discussion(noteable = nil)
Discussion.build([self], noteable)
end
# Returns the entire discussion this note is part of.
# Consider using `#to_discussion` if we do not need to render the discussion
# and all its notes and if we don't care about the discussion's resolvability status.
def discussion
full_discussion = self.noteable.notes.find_discussion(self.discussion_id) if part_of_discussion?
full_discussion || to_discussion
end
def start_of_discussion?
discussion.first_note == self
end
def part_of_discussion?
!to_discussion.individual_note?
end
def in_reply_to?(other)
case other
when Note
if part_of_discussion?
in_reply_to?(other.noteable) && in_reply_to?(other.to_discussion)
else
in_reply_to?(other.noteable)
end
when Discussion
self.discussion_id == other.id
when Noteable
self.noteable == other
else
false
end
end
def references
refs = [noteable]
if part_of_discussion?
refs += discussion.notes.take_while { |n| n.id < id }
end
refs
end
def expire_etag_cache
noteable&.expire_note_etag_cache
end
def touch(*args)
# We're not using an explicit transaction here because this would in all
# cases result in all future queries going to the primary, even if no writes
# are performed.
#
# We touch the noteable first so its SELECT query can run before our writes,
# ensuring it runs on a secondary (if no prior write took place).
touch_noteable
super
end
# By default Rails will issue an "SELECT *" for the relation, which is
# overkill for just updating the timestamps. To work around this we manually
# touch the data so we can SELECT only the columns we need.
def touch_noteable
# Commits are not stored in the DB so we can't touch them.
return if for_commit?
assoc = association(:noteable)
noteable_object =
if assoc.loaded?
noteable
else
# If the object is not loaded (e.g. when notes are loaded async) we
# _only_ want the data we actually need.
assoc.scope.select(:id, :updated_at).take
end
noteable_object&.touch
# We return the noteable object so we can re-use it in EE for Elasticsearch.
noteable_object
end
def banzai_render_context(field)
super.merge(noteable: noteable, system_note: system?)
end
def retrieve_upload(_identifier, paths)
Upload.find_by(model: self, path: paths)
end
def resource_parent
project
end
def user_mentions
return Note.none unless noteable.present?
noteable.user_mentions.where(note: self)
end
def system_note_with_references_visible_for?(user)
(!system_note_with_references? || all_referenced_mentionables_allowed?(user)) && system_note_viewable_by?(user)
end
private
# Using this method followed by a call to `save` may result in ActiveRecord::RecordNotUnique exception
# in a multithreaded environment. Make sure to use it within a `safe_ensure_unique` block.
def model_user_mention
return if user_mentions.is_a?(ActiveRecord::NullRelation)
user_mentions.first_or_initialize
end
def system_note_viewable_by?(user)
return true unless system_note_metadata
restriction = TYPES_RESTRICTED_BY_ABILITY[system_note_metadata.action.to_sym]
return Ability.allowed?(user, restriction, project) if restriction
true
end
def keep_around_commit
project.repository.keep_around(self.commit_id)
end
def nullify_blank_type
self.type = nil if self.type.blank?
end
def nullify_blank_line_code
self.line_code = nil if self.line_code.blank?
end
def ensure_discussion_id
return if self.attribute_present?(:discussion_id)
self.discussion_id = derive_discussion_id
end
def derive_discussion_id
discussion_class.discussion_id(self)
end
def all_referenced_mentionables_allowed?(user)
if user_visible_reference_count.present? && total_reference_count.present?
# if they are not equal, then there are private/confidential references as well
user_visible_reference_count > 0 && user_visible_reference_count == total_reference_count
else
refs = all_references(user)
refs.all.any? && refs.stateful_not_visible_counter == 0
end
end
def force_cross_reference_regex_check?
return unless system?
system_note_metadata&.cross_reference_types&.include?(system_note_metadata&.action)
end
def does_not_exceed_notes_limit?
return unless noteable
errors.add(:base, _('Maximum number of comments exceeded')) if noteable.notes.count >= Noteable::MAX_NOTES_LIMIT
end
end
Note.prepend_if_ee('EE::Note')