debian-mirror-gitlab/lib/gitlab/user_access.rb

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# frozen_string_literal: true
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module Gitlab
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class UserAccess
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extend Gitlab::Cache::RequestCache
request_cache_key do
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[user&.id, container&.to_global_id]
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end
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attr_reader :user, :push_ability
attr_accessor :container
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def initialize(user, container: nil, push_ability: :push_code, skip_collaboration_check: false)
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@user = user
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@container = container
@push_ability = push_ability
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@skip_collaboration_check = skip_collaboration_check
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end
def can_do_action?(action)
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return false unless can_access_git?
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permission_cache[action] =
permission_cache.fetch(action) do
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user.can?(action, container)
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end
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end
def cannot_do_action?(action)
!can_do_action?(action)
end
def allowed?
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return false unless can_access_git?
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if user.requires_ldap_check? && user.try_obtain_ldap_lease
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return false unless Gitlab::Auth::Ldap::Access.allowed?(user)
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end
true
end
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request_cache def can_create_tag?(ref)
return false unless can_access_git?
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if protected?(ProtectedTag, ref)
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protected_tag_accessible_to?(ref, action: :create)
else
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user.can?(:admin_tag, container)
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end
end
request_cache def can_delete_branch?(ref)
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return false unless can_access_git?
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if protected?(ProtectedBranch, ref)
user.can?(:push_to_delete_protected_branch, container)
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else
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can_push?
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end
end
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def can_update_branch?(ref)
can_push_to_branch?(ref) || can_merge_to_branch?(ref)
end
request_cache def can_push_to_branch?(ref)
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return false unless can_access_git? && container && can_collaborate?(ref)
return true unless protected?(ProtectedBranch, ref)
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protected_branch_accessible_to?(ref, action: :push)
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end
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request_cache def can_merge_to_branch?(ref)
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return false unless can_access_git?
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if protected?(ProtectedBranch, ref)
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protected_branch_accessible_to?(ref, action: :merge)
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else
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can_push?
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end
end
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def can_push_for_ref?(_)
can_do_action?(:push_code)
end
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private
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attr_reader :skip_collaboration_check
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def can_push?
user.can?(push_ability, container)
end
def can_collaborate?(ref)
assert_project!
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can_push? || branch_allows_collaboration_for?(ref)
end
def branch_allows_collaboration_for?(ref)
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return false if skip_collaboration_check
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# Checking for an internal project or group to prevent an infinite loop:
# https://gitlab.com/gitlab-org/gitlab/issues/36805
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(!project.internal? && project.branch_allows_collaboration?(user, ref))
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end
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def permission_cache
@permission_cache ||= {}
end
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request_cache def can_access_git?
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user && user.can?(:access_git)
end
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def protected_branch_accessible_to?(ref, action:)
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assert_project!
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ProtectedBranch.protected_ref_accessible_to?(
ref, user,
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project: project,
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action: action,
protected_refs: project.protected_branches)
end
def protected_tag_accessible_to?(ref, action:)
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assert_project!
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ProtectedTag.protected_ref_accessible_to?(
ref, user,
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project: project,
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action: action,
protected_refs: project.protected_tags)
end
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request_cache def protected?(kind, refs)
assert_project!
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kind.protected?(project, refs)
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end
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def project
container
end
# Any method that assumes that it is operating on a project should make this
# explicit by calling `#assert_project!`.
# TODO: remove when we make this class polymorphic enough not to care about projects
# See: https://gitlab.com/gitlab-org/gitlab/-/issues/227635
def assert_project!
raise "No project! #{project.inspect} is not a Project" unless project.is_a?(::Project)
end
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end
end