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

354 lines
9.7 KiB
Ruby

# frozen_string_literal: true
class Snippet < ApplicationRecord
include Gitlab::VisibilityLevel
include Redactable
include CacheMarkdownField
include Noteable
include Participable
include Sortable
include Awardable
include Mentionable
include Spammable
include Editable
include Gitlab::SQL::Pattern
include FromUnion
include IgnorableColumns
include HasRepository
extend ::Gitlab::Utils::Override
MAX_FILE_COUNT = 1
cache_markdown_field :title, pipeline: :single_line
cache_markdown_field :description
cache_markdown_field :content
redact_field :description
# Aliases to make application_helper#edited_time_ago_with_tooltip helper work properly with snippets.
# 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
# If file_name changes, it invalidates content
alias_method :default_content_html_invalidator, :content_html_invalidated?
def content_html_invalidated?
default_content_html_invalidator || file_name_changed?
end
belongs_to :author, class_name: 'User'
belongs_to :project
has_many :notes, as: :noteable, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
has_many :user_mentions, class_name: "SnippetUserMention", dependent: :delete_all # rubocop:disable Cop/ActiveRecordDependent
has_one :snippet_repository, inverse_of: :snippet
delegate :name, :email, to: :author, prefix: true, allow_nil: true
validates :author, presence: true
validates :title, presence: true, length: { maximum: 255 }
validates :file_name,
length: { maximum: 255 }
validates :content, presence: true
validates :content,
length: {
maximum: ->(_) { Gitlab::CurrentSettings.snippet_size_limit },
message: -> (_, data) do
current_value = ActiveSupport::NumberHelper.number_to_human_size(data[:value].size)
max_size = ActiveSupport::NumberHelper.number_to_human_size(Gitlab::CurrentSettings.snippet_size_limit)
_("is too long (%{current_value}). The maximum size is %{max_size}.") % { current_value: current_value, max_size: max_size }
end
},
if: :content_changed?
validates :visibility_level, inclusion: { in: Gitlab::VisibilityLevel.values }
after_save :store_mentions!, if: :any_mentionable_attributes_changed?
# Scopes
scope :are_internal, -> { where(visibility_level: Snippet::INTERNAL) }
scope :are_private, -> { where(visibility_level: Snippet::PRIVATE) }
scope :are_public, -> { public_only }
scope :are_secret, -> { public_only.where(secret: true) }
scope :fresh, -> { order("created_at DESC") }
scope :inc_author, -> { includes(:author) }
scope :inc_relations_for_view, -> { includes(author: :status) }
attr_mentionable :description
participant :author
participant :notes_with_associations
attr_spammable :title, spam_title: true
attr_spammable :content, spam_description: true
attr_encrypted :secret_token,
key: Settings.attr_encrypted_db_key_base_truncated,
mode: :per_attribute_iv,
algorithm: 'aes-256-cbc'
def self.with_optional_visibility(value = nil)
if value
where(visibility_level: value)
else
all
end
end
def self.only_personal_snippets
where(project_id: nil)
end
def self.only_include_projects_visible_to(current_user = nil)
levels = Gitlab::VisibilityLevel.levels_for_user(current_user)
joins(:project).where('projects.visibility_level IN (?)', levels)
end
def self.only_include_projects_with_snippets_enabled(include_private: false)
column = ProjectFeature.access_level_attribute(:snippets)
levels = [ProjectFeature::ENABLED, ProjectFeature::PUBLIC]
levels << ProjectFeature::PRIVATE if include_private
joins(project: :project_feature)
.where(project_features: { column => levels })
end
def self.only_include_authorized_projects(current_user)
where(
'EXISTS (?)',
ProjectAuthorization
.select(1)
.where('project_id = snippets.project_id')
.where(user_id: current_user.id)
)
end
def self.for_project_with_user(project, user = nil)
return none unless project.snippets_visible?(user)
if user && project.team.member?(user)
project.snippets
else
project.snippets.public_to_user(user)
end
end
def self.visible_to_or_authored_by(user)
query = where(visibility_level: Gitlab::VisibilityLevel.levels_for_user(user))
query.or(where(author_id: user.id))
end
def self.reference_prefix
'$'
end
# Pattern used to extract `$123` snippet references from text
#
# This pattern supports cross-project references.
def self.reference_pattern
@reference_pattern ||= %r{
(#{Project.reference_pattern})?
#{Regexp.escape(reference_prefix)}(?<snippet>\d+)
}x
end
def self.link_reference_pattern
@link_reference_pattern ||= super("snippets", /(?<snippet>\d+)/)
end
def self.find_by_id_and_project(id:, project:)
Snippet.find_by(id: id, project: project)
end
def initialize(attributes = {})
# We can't use default_value_for because the database has a default
# value of 0 for visibility_level. If someone attempts to create a
# private snippet, default_value_for will assume that the
# visibility_level hasn't changed and will use the application
# setting default, which could be internal or public.
#
# To fix the problem, we assign the actual snippet default if no
# explicit visibility has been initialized.
attributes ||= {}
unless visibility_attribute_present?(attributes)
attributes[:visibility_level] = Gitlab::CurrentSettings.default_snippet_visibility
end
super
end
def to_reference(from = nil, full: false)
reference = "#{self.class.reference_prefix}#{id}"
if project.present?
"#{project.to_reference_base(from, full: full)}#{reference}"
else
reference
end
end
def blob
@blob ||= Blob.decorate(SnippetBlob.new(self), self)
end
def blobs
return [] unless repository_exists?
repository.ls_files(repository.root_ref).map { |file| Blob.lazy(self, repository.root_ref, file) }
end
def hook_attrs
attributes
end
def file_name
super.to_s
end
def self.sanitized_file_name(file_name)
file_name.gsub(/[^a-zA-Z0-9_\-\.]+/, '')
end
def visibility_level_field
:visibility_level
end
def embeddable?
Ability.allowed?(nil, :read_snippet, self)
end
def notes_with_associations
notes.includes(:author)
end
def check_for_spam?
visibility_level_changed?(to: Snippet::PUBLIC) ||
(public? && (title_changed? || content_changed?))
end
# snippets are the biggest sources of spam
override :allow_possible_spam?
def allow_possible_spam?
false
end
def spammable_entity_type
'snippet'
end
def to_ability_name
'snippet'
end
def valid_secret_token?(token)
return false unless token && secret_token
ActiveSupport::SecurityUtils.secure_compare(token.to_s, secret_token.to_s)
end
def as_json(options = {})
options[:except] = Array.wrap(options[:except])
options[:except] << :secret_token
super
end
override :repository
def repository
@repository ||= Repository.new(full_path, self, shard: repository_storage, disk_path: disk_path, repo_type: Gitlab::GlRepository::SNIPPET)
end
override :repository_size_checker
def repository_size_checker
strong_memoize(:repository_size_checker) do
::Gitlab::RepositorySizeChecker.new(
current_size_proc: -> { repository.size.megabytes },
limit: Gitlab::CurrentSettings.snippet_size_limit
)
end
end
override :storage
def storage
@storage ||= Storage::Hashed.new(self, prefix: Storage::Hashed::SNIPPET_REPOSITORY_PATH_PREFIX)
end
# This is the full_path used to identify the
# the snippet repository. It will be used mostly
# for logging purposes.
override :full_path
def full_path
return unless persisted?
@full_path ||= begin
components = []
components << project.full_path if project_id?
components << '@snippets'
components << self.id
components.join('/')
end
end
def repository_storage
snippet_repository&.shard_name || self.class.pick_repository_storage
end
def create_repository
return if repository_exists? && snippet_repository
repository.create_if_not_exists
track_snippet_repository(repository.storage)
end
def track_snippet_repository(shard)
snippet_repo = snippet_repository || build_snippet_repository
snippet_repo.update!(shard_name: shard, disk_path: disk_path)
end
def can_cache_field?(field)
field != :content || MarkupHelper.gitlab_markdown?(file_name)
end
def hexdigest
Digest::SHA256.hexdigest("#{title}#{description}#{created_at}#{updated_at}")
end
def versioned_enabled_for?(user)
::Feature.enabled?(:version_snippets, user) && repository_exists?
end
class << self
# Searches for snippets with a matching title, description or file name.
#
# This method uses ILIKE on PostgreSQL and LIKE on MySQL.
#
# query - The search query as a String.
#
# Returns an ActiveRecord::Relation.
def search(query)
fuzzy_search(query, [:title, :description, :file_name])
end
# Searches for snippets with matching content.
#
# This method uses ILIKE on PostgreSQL and LIKE on MySQL.
#
# query - The search query as a String.
#
# Returns an ActiveRecord::Relation.
def search_code(query)
fuzzy_search(query, [:content])
end
def parent_class
::Project
end
end
end
Snippet.prepend_if_ee('EE::Snippet')