gitlab-org--gitlab-foss/app/models/ability.rb
2016-04-18 11:12:28 -03:00

509 lines
13 KiB
Ruby

class Ability
class << self
def allowed(user, subject)
return anonymous_abilities(user, subject) if user.nil?
return [] unless user.is_a?(User)
return [] if user.blocked?
case subject
when CommitStatus then commit_status_abilities(user, subject)
when Project then project_abilities(user, subject)
when Issue then issue_abilities(user, subject)
when ExternalIssue then external_issue_abilities(user, subject)
when Note then note_abilities(user, subject)
when ProjectSnippet then project_snippet_abilities(user, subject)
when PersonalSnippet then personal_snippet_abilities(user, subject)
when MergeRequest then merge_request_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
else []
end.concat(global_abilities(user))
end
# List of possible abilities for anonymous user
def anonymous_abilities(user, subject)
case true
when subject.is_a?(PersonalSnippet)
anonymous_personal_snippet_abilities(subject)
when subject.is_a?(ProjectSnippet)
anonymous_project_snippet_abilities(subject)
when subject.is_a?(CommitStatus)
anonymous_commit_status_abilities(subject)
when subject.is_a?(Project) || subject.respond_to?(:project)
anonymous_project_abilities(subject)
when subject.is_a?(Group) || subject.respond_to?(:group)
anonymous_group_abilities(subject)
when 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_wiki,
:read_label,
:read_milestone,
:read_project_snippet,
:read_project_member,
:read_merge_request,
:read_note,
:read_commit_status,
: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)
rules = []
key = "/user/#{user.id}/project/#{project.id}"
RequestStore.store[key] ||= begin
# Push abilities on the users team role
rules.push(*project_team_rules(project.team, user))
if project.owner == user ||
(project.group && project.group.has_owner?(user)) ||
user.admin?
rules.push(*project_owner_rules)
end
if project.public? || (project.internal? && !user.external?)
rules.push(*public_project_rules)
# Allow to read builds for internal projects
rules << :read_build if project.public_builds?
end
if project.archived?
rules -= project_archived_rules
end
rules - project_disabled_features_rules(project)
end
end
def project_team_rules(team, user)
# Rules based on role in project
if team.master?(user)
project_master_rules
elsif team.developer?(user)
project_dev_rules
elsif team.reporter?(user)
project_report_rules
elsif team.guest?(user)
project_guest_rules
end
end
def public_project_rules
@public_project_rules ||= project_guest_rules + [
:download_code,
:fork_project,
:read_commit_status
]
end
def project_guest_rules
@project_guest_rules ||= [
:read_project,
:read_wiki,
:read_issue,
:read_label,
:read_milestone,
:read_project_snippet,
:read_project_member,
:read_merge_request,
:read_note,
:create_project,
:create_issue,
:create_note,
:upload_file
]
end
def project_report_rules
@project_report_rules ||= project_guest_rules + [
:download_code,
:fork_project,
:create_project_snippet,
:update_issue,
:admin_issue,
:admin_label,
:read_commit_status,
:read_build,
]
end
def project_dev_rules
@project_dev_rules ||= project_report_rules + [
:admin_merge_request,
:update_merge_request,
:create_commit_status,
:update_commit_status,
:create_build,
:update_build,
:create_merge_request,
:create_wiki,
:push_code
]
end
def project_archived_rules
@project_archived_rules ||= [
:create_merge_request,
:push_code,
:push_code_to_protected_branches,
:update_merge_request,
:admin_merge_request
]
end
def project_master_rules
@project_master_rules ||= project_dev_rules + [
:push_code_to_protected_branches,
:update_project_snippet,
:admin_milestone,
:admin_project_snippet,
:admin_project_member,
:admin_merge_request,
:admin_note,
:admin_wiki,
:admin_project,
:admin_commit_status,
:admin_build
]
end
def project_owner_rules
@project_owner_rules ||= project_master_rules + [
:change_namespace,
:change_visibility_level,
:rename_project,
:remove_project,
:archive_project,
:remove_fork_project,
:destroy_merge_request,
:destroy_issue
]
end
def project_disabled_features_rules(project)
rules = []
unless project.issues_enabled
rules += named_abilities('issue')
end
unless project.merge_requests_enabled
rules += named_abilities('merge_request')
end
unless project.issues_enabled or project.merge_requests_enabled
rules += named_abilities('label')
rules += named_abilities('milestone')
end
unless project.snippets_enabled
rules += named_abilities('project_snippet')
end
unless project.wiki_enabled
rules += named_abilities('wiki')
end
unless project.builds_enabled
rules += named_abilities('build')
end
rules
end
def group_abilities(user, group)
rules = []
rules << :read_group if can_read_group?(user, group)
# Only group masters and group owners can create new projects
if group.has_master?(user) || group.has_owner?(user) || user.admin?
rules += [
:create_projects,
:admin_milestones
]
end
# Only group owner and administrators can admin group
if group.has_owner?(user) || user.admin?
rules += [
:admin_group,
:admin_namespace,
:admin_group_member,
:change_visibility_level
]
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
]
end
if note.respond_to?(:project) && note.project
rules += project_abilities(user, note.project)
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 user_abilities
[:read_user]
end
def abilities
@abilities ||= begin
abilities = Six.new
abilities << self
abilities
end
end
def external_issue_abilities(user, subject)
project_abilities(user, subject.project)
end
private
def restricted_public_level?
current_application_settings.restricted_visibility_levels.include?(Gitlab::VisibilityLevel::PUBLIC)
end
def named_abilities(name)
[
:"read_#{name}",
:"create_#{name}",
:"update_#{name}",
:"admin_#{name}"
]
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.id)
rules.delete(:admin_issue)
rules.delete(:read_issue)
rules.delete(:update_issue)
end
rules
end
end
end