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|
class Ability
class << self
# Given a list of users and a project this method returns the users that can
# read the given project.
def users_that_can_read_project(users, project)
if project.public?
users
else
users.select do |user|
if user.admin?
true
elsif project.internal? && !user.external?
true
elsif project.owner == user
true
elsif project.team.members.include?(user)
true
else
false
end
end
end
end
# Returns an Array of Issues that can be read by the given user.
#
# issues - The issues to reduce down to those readable by the user.
# user - The User for which to check the issues
def issues_readable_by_user(issues, user = nil)
return issues if user && user.admin?
issues.select { |issue| issue.visible_to_user?(user) }
end
# TODO: make this private and use the actual abilities stuff for this
def can_edit_note?(user, note)
return false if !note.editable? || !user.present?
return true if note.author == user || user.admin?
if note.project
max_access_level = note.project.team.max_member_access(user.id)
max_access_level >= Gitlab::Access::MASTER
else
false
end
end
def allowed?(user, action, subject)
allowed(user, subject).include?(action)
end
def allowed(user, subject)
return uncached_allowed(user, subject) unless RequestStore.active?
user_key = user ? user.id : 'anonymous'
subject_key = subject ? "#{subject.class.name}/#{subject.id}" : 'global'
key = "/ability/#{user_key}/#{subject_key}"
RequestStore[key] ||= Set.new(uncached_allowed(user, subject)).freeze
end
private
def uncached_allowed(user, subject)
policy_class = BasePolicy.class_for(subject) rescue nil
return policy_class.abilities(user, subject) if policy_class
return anonymous_abilities(subject) if user.nil?
return [] unless user.is_a?(User)
return [] if user.blocked?
abilities_by_subject_class(user: user, subject: subject)
end
def abilities_by_subject_class(user:, subject:)
case subject
when ProjectSnippet then project_snippet_abilities(user, subject)
when PersonalSnippet then personal_snippet_abilities(user, subject)
when Group then group_abilities(user, subject)
when Namespace then namespace_abilities(user, subject)
when GroupMember then group_member_abilities(user, subject)
when ProjectMember then project_member_abilities(user, subject)
when User then user_abilities
when ExternalIssue, Deployment, Environment then project_abilities(user, subject.project)
when Ci::Runner then runner_abilities(user, subject)
else []
end + global_abilities(user)
end
# List of possible abilities for anonymous user
def anonymous_abilities(subject)
if subject.is_a?(PersonalSnippet)
anonymous_personal_snippet_abilities(subject)
elsif subject.is_a?(ProjectSnippet)
anonymous_project_snippet_abilities(subject)
elsif subject.respond_to?(:project)
ProjectPolicy.abilities(nil, subject.project)
elsif subject.is_a?(Group) || subject.respond_to?(:group)
anonymous_group_abilities(subject)
elsif subject.is_a?(User)
anonymous_user_abilities
else
[]
end
end
def anonymous_project_abilities(subject)
project = if subject.is_a?(Project)
subject
else
subject.project
end
if project && project.public?
rules = [
:read_project,
:read_board,
:read_list,
:read_wiki,
:read_label,
:read_milestone,
:read_project_snippet,
:read_project_member,
:read_merge_request,
:read_note,
:read_pipeline,
:read_commit_status,
:read_container_image,
:download_code
]
# Allow to read builds by anonymous user if guests are allowed
rules << :read_build if project.public_builds?
# Allow to read issues by anonymous user if issue is not confidential
rules << :read_issue unless subject.is_a?(Issue) && subject.confidential?
rules - project_disabled_features_rules(project)
else
[]
end
end
def anonymous_commit_status_abilities(subject)
rules = anonymous_project_abilities(subject.project)
# If subject is Ci::Build which inherits from CommitStatus filter the abilities
rules = filter_build_abilities(rules) if subject.is_a?(Ci::Build)
rules
end
def anonymous_group_abilities(subject)
rules = []
group = if subject.is_a?(Group)
subject
else
subject.group
end
rules << :read_group if group.public?
rules
end
def anonymous_personal_snippet_abilities(snippet)
if snippet.public?
[:read_personal_snippet]
else
[]
end
end
def anonymous_project_snippet_abilities(snippet)
if snippet.public?
[:read_project_snippet]
else
[]
end
end
def anonymous_user_abilities
[:read_user] unless restricted_public_level?
end
def global_abilities(user)
rules = []
rules << :create_group if user.can_create_group
rules << :read_users_list
rules
end
def project_abilities(user, project)
# temporary patch, deleteme before merge
ProjectPolicy.abilities(user, project).to_a
end
def group_abilities(user, group)
rules = []
rules << :read_group if can_read_group?(user, group)
owner = user.admin? || group.has_owner?(user)
master = owner || group.has_master?(user)
# Only group masters and group owners can create new projects
if master
rules += [
:create_projects,
:admin_milestones
]
end
# Only group owner and administrators can admin group
if owner
rules += [
:admin_group,
:admin_namespace,
:admin_group_member,
:change_visibility_level
]
end
if group.public? || (group.internal? && !user.external?)
rules << :request_access if group.request_access_enabled && group.users.exclude?(user)
end
rules.flatten
end
def can_read_group?(user, group)
return true if user.admin?
return true if group.public?
return true if group.internal? && !user.external?
return true if group.users.include?(user)
GroupProjectsFinder.new(group).execute(user).any?
end
def namespace_abilities(user, namespace)
rules = []
# Only namespace owner and administrators can admin it
if namespace.owner == user || user.admin?
rules += [
:create_projects,
:admin_namespace
]
end
rules.flatten
end
[:issue, :merge_request].each do |name|
define_method "#{name}_abilities" do |user, subject|
rules = []
if subject.author == user || (subject.respond_to?(:assignee) && subject.assignee == user)
rules += [
:"read_#{name}",
:"update_#{name}",
]
end
rules += project_abilities(user, subject.project)
rules = filter_confidential_issues_abilities(user, subject, rules) if subject.is_a?(Issue)
rules
end
end
def note_abilities(user, note)
rules = []
if note.author == user
rules += [
:read_note,
:update_note,
:admin_note,
:resolve_note
]
end
if note.respond_to?(:project) && note.project
rules += project_abilities(user, note.project)
end
if note.for_merge_request? && note.noteable.author == user
rules << :resolve_note
end
rules
end
def personal_snippet_abilities(user, snippet)
rules = []
if snippet.author == user
rules += [
:read_personal_snippet,
:update_personal_snippet,
:admin_personal_snippet
]
end
if snippet.public? || (snippet.internal? && !user.external?)
rules << :read_personal_snippet
end
rules
end
def project_snippet_abilities(user, snippet)
rules = []
if snippet.author == user || user.admin?
rules += [
:read_project_snippet,
:update_project_snippet,
:admin_project_snippet
]
end
if snippet.public? || (snippet.internal? && !user.external?) || (snippet.private? && snippet.project.team.member?(user))
rules << :read_project_snippet
end
rules
end
def group_member_abilities(user, subject)
rules = []
target_user = subject.user
group = subject.group
unless group.last_owner?(target_user)
can_manage = group_abilities(user, group).include?(:admin_group_member)
if can_manage
rules << :update_group_member
rules << :destroy_group_member
elsif user == target_user
rules << :destroy_group_member
end
end
rules
end
def project_member_abilities(user, subject)
rules = []
target_user = subject.user
project = subject.project
unless target_user == project.owner
can_manage = project_abilities(user, project).include?(:admin_project_member)
if can_manage
rules << :update_project_member
rules << :destroy_project_member
elsif user == target_user
rules << :destroy_project_member
end
end
rules
end
def commit_status_abilities(user, subject)
rules = project_abilities(user, subject.project)
# If subject is Ci::Build which inherits from CommitStatus filter the abilities
rules = filter_build_abilities(rules) if subject.is_a?(Ci::Build)
rules
end
def filter_build_abilities(rules)
# If we can't read build we should also not have that
# ability when looking at this in context of commit_status
%w(read create update admin).each do |rule|
rules.delete(:"#{rule}_commit_status") unless rules.include?(:"#{rule}_build")
end
rules
end
def runner_abilities(user, runner)
if user.is_admin?
[:assign_runner]
elsif runner.is_shared? || runner.locked?
[]
elsif user.ci_authorized_runners.include?(runner)
[:assign_runner]
else
[]
end
end
def user_abilities
[:read_user]
end
def restricted_public_level?
current_application_settings.restricted_visibility_levels.include?(Gitlab::VisibilityLevel::PUBLIC)
end
def filter_confidential_issues_abilities(user, issue, rules)
return rules if user.admin? || !issue.confidential?
unless issue.author == user || issue.assignee == user || issue.project.team.member?(user, Gitlab::Access::REPORTER)
rules.delete(:admin_issue)
rules.delete(:read_issue)
rules.delete(:update_issue)
end
rules
end
end
end
|