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class ProjectFeature < ActiveRecord::Base
# == Project features permissions
#
# Grants access level to project tools
#
# Tools can be enabled only for users, everyone or disabled
# Access control is made only for non private projects
#
# levels:
#
# Disabled: not enabled for anyone
# Private: enabled only for team members
# Enabled: enabled for everyone able to access the project
#
# Permission levels
DISABLED = 0
PRIVATE = 10
ENABLED = 20
FEATURES = %i(issues merge_requests wiki snippets builds repository).freeze
class << self
def access_level_attribute(feature)
feature = feature.model_name.plural.to_sym if feature.respond_to?(:model_name)
raise ArgumentError, "invalid project feature: #{feature}" unless FEATURES.include?(feature)
"#{feature}_access_level".to_sym
end
def quoted_access_level_column(feature)
attribute = connection.quote_column_name(access_level_attribute(feature))
table = connection.quote_table_name(table_name)
"#{table}.#{attribute}"
end
end
# Default scopes force us to unscope here since a service may need to check
# permissions for a project in pending_delete
# http://stackoverflow.com/questions/1540645/how-to-disable-default-scope-for-a-belongs-to
belongs_to :project, -> { unscope(where: :pending_delete) }
validates :project, presence: true
validate :repository_children_level
default_value_for :builds_access_level, value: ENABLED, allows_nil: false
default_value_for :issues_access_level, value: ENABLED, allows_nil: false
default_value_for :merge_requests_access_level, value: ENABLED, allows_nil: false
default_value_for :snippets_access_level, value: ENABLED, allows_nil: false
default_value_for :wiki_access_level, value: ENABLED, allows_nil: false
default_value_for :repository_access_level, value: ENABLED, allows_nil: false
def feature_available?(feature, user)
get_permission(user, access_level(feature))
end
def access_level(feature)
public_send(ProjectFeature.access_level_attribute(feature)) # rubocop:disable GitlabSecurity/PublicSend
end
def builds_enabled?
builds_access_level > DISABLED
end
def wiki_enabled?
wiki_access_level > DISABLED
end
def merge_requests_enabled?
merge_requests_access_level > DISABLED
end
def issues_enabled?
issues_access_level > DISABLED
end
private
# Validates builds and merge requests access level
# which cannot be higher than repository access level
def repository_children_level
validator = lambda do |field|
level = public_send(field) || ProjectFeature::ENABLED # rubocop:disable GitlabSecurity/PublicSend
not_allowed = level > repository_access_level
self.errors.add(field, "cannot have higher visibility level than repository access level") if not_allowed
end
%i(merge_requests_access_level builds_access_level).each(&validator)
end
def get_permission(user, level)
case level
when DISABLED
false
when PRIVATE
user && (project.team.member?(user) || user.full_private_access?)
when ENABLED
true
else
true
end
end
end
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