debian-mirror-gitlab/lib/api/internal.rb

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# frozen_string_literal: true
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module API
# Internal access API
class Internal < Grape::API
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before { authenticate_by_gitlab_shell_token! }
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helpers ::API::Helpers::InternalHelpers
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helpers ::Gitlab::Identifier
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UNKNOWN_CHECK_RESULT_ERROR = 'Unknown check result'.freeze
helpers do
def response_with_status(code: 200, success: true, message: nil, **extra_options)
status code
{ status: success, message: message }.merge(extra_options).compact
end
end
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namespace 'internal' do
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# Check if git command is allowed for project
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#
# Params:
# key_id - ssh key id for Git over SSH
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# user_id - user id for Git over HTTP or over SSH in keyless SSH CERT mode
# username - user name for Git over SSH in keyless SSH cert mode
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# protocol - Git access protocol being used, e.g. HTTP or SSH
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# project - project full_path (not path on disk)
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# action - git action (git-upload-pack or git-receive-pack)
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# changes - changes as "oldrev newrev ref", see Gitlab::ChangesList
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# rubocop: disable CodeReuse/ActiveRecord
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post "/allowed" do
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# Stores some Git-specific env thread-safely
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env = parse_env
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Gitlab::Git::HookEnv.set(gl_repository, env) if project
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actor =
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if params[:key_id]
Key.find_by(id: params[:key_id])
elsif params[:user_id]
User.find_by(id: params[:user_id])
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elsif params[:username]
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UserFinder.new(params[:username]).find_by_username
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end
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protocol = params[:protocol]
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actor.update_last_used_at if actor.is_a?(Key)
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user =
if actor.is_a?(Key)
actor.user
else
actor
end
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access_checker_klass = wiki? ? Gitlab::GitAccessWiki : Gitlab::GitAccess
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access_checker = access_checker_klass.new(actor, project,
protocol, authentication_abilities: ssh_authentication_abilities,
namespace_path: namespace_path, project_path: project_path,
redirected_path: redirected_path)
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check_result = begin
result = access_checker.check(params[:action], params[:changes])
@project ||= access_checker.project
result
rescue Gitlab::GitAccess::UnauthorizedError => e
break response_with_status(code: 401, success: false, message: e.message)
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rescue Gitlab::GitAccess::TimeoutError => e
break response_with_status(code: 503, success: false, message: e.message)
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rescue Gitlab::GitAccess::NotFoundError => e
break response_with_status(code: 404, success: false, message: e.message)
end
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log_user_activity(actor)
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case check_result
when ::Gitlab::GitAccessResult::Success
payload = {
gl_repository: gl_repository,
gl_id: Gitlab::GlId.gl_id(user),
gl_username: user&.username,
git_config_options: [],
# This repository_path is a bogus value but gitlab-shell still requires
# its presence. https://gitlab.com/gitlab-org/gitlab-shell/issues/135
repository_path: '/',
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gitaly: gitaly_payload(params[:action])
}
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# Custom option for git-receive-pack command
receive_max_input_size = Gitlab::CurrentSettings.receive_max_input_size.to_i
if receive_max_input_size > 0
payload[:git_config_options] << "receive.maxInputSize=#{receive_max_input_size.megabytes}"
end
response_with_status(**payload)
when ::Gitlab::GitAccessResult::CustomAction
response_with_status(code: 300, message: check_result.message, payload: check_result.payload)
else
response_with_status(code: 500, success: false, message: UNKNOWN_CHECK_RESULT_ERROR)
end
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end
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# rubocop: enable CodeReuse/ActiveRecord
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# rubocop: disable CodeReuse/ActiveRecord
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post "/lfs_authenticate" do
status 200
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if params[:key_id]
actor = Key.find(params[:key_id])
actor.update_last_used_at
elsif params[:user_id]
actor = User.find_by(id: params[:user_id])
raise ActiveRecord::RecordNotFound.new("No such user id!") unless actor
else
raise ActiveRecord::RecordNotFound.new("No key_id or user_id passed!")
end
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token_handler = Gitlab::LfsToken.new(actor)
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{
username: token_handler.actor_name,
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lfs_token: token_handler.token,
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repository_http_path: project.http_url_to_repo
}
end
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# rubocop: enable CodeReuse/ActiveRecord
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get "/merge_request_urls" do
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merge_request_urls
end
#
# Get a ssh key using the fingerprint
#
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# rubocop: disable CodeReuse/ActiveRecord
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get "/authorized_keys" do
fingerprint = params.fetch(:fingerprint) do
Gitlab::InsecureKeyFingerprint.new(params.fetch(:key)).fingerprint
end
key = Key.find_by(fingerprint: fingerprint)
not_found!("Key") if key.nil?
present key, with: Entities::SSHKey
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end
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# rubocop: enable CodeReuse/ActiveRecord
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#
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# Discover user by ssh key, user id or username
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#
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# rubocop: disable CodeReuse/ActiveRecord
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get "/discover" do
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if params[:key_id]
key = Key.find(params[:key_id])
user = key.user
elsif params[:user_id]
user = User.find_by(id: params[:user_id])
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elsif params[:username]
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user = UserFinder.new(params[:username]).find_by_username
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end
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present user, with: Entities::UserSafe
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end
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# rubocop: enable CodeReuse/ActiveRecord
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get "/check" do
{
api_version: API.version,
gitlab_version: Gitlab::VERSION,
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gitlab_rev: Gitlab.revision,
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redis: redis_ping
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}
end
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get "/broadcast_messages" do
if messages = BroadcastMessage.current
present messages, with: Entities::BroadcastMessage
else
[]
end
end
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get "/broadcast_message" do
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if message = BroadcastMessage.current&.last
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present message, with: Entities::BroadcastMessage
else
{}
end
end
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# rubocop: disable CodeReuse/ActiveRecord
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post '/two_factor_recovery_codes' do
status 200
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if params[:key_id]
key = Key.find_by(id: params[:key_id])
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if key
key.update_last_used_at
else
break { 'success' => false, 'message' => 'Could not find the given key' }
end
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if key.is_a?(DeployKey)
break { success: false, message: 'Deploy keys cannot be used to retrieve recovery codes' }
end
user = key.user
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unless user
break { success: false, message: 'Could not find a user for the given key' }
end
elsif params[:user_id]
user = User.find_by(id: params[:user_id])
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unless user
break { success: false, message: 'Could not find the given user' }
end
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end
unless user.two_factor_enabled?
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break { success: false, message: 'Two-factor authentication is not enabled for this user' }
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end
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codes = nil
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::Users::UpdateService.new(current_user, user: user).execute! do |user|
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codes = user.generate_otp_backup_codes!
end
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{ success: true, recovery_codes: codes }
end
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# rubocop: enable CodeReuse/ActiveRecord
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post '/pre_receive' do
status 200
reference_counter_increased = Gitlab::ReferenceCounter.new(params[:gl_repository]).increase
{ reference_counter_increased: reference_counter_increased }
end
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post "/notify_post_receive" do
status 200
# TODO: Re-enable when Gitaly is processing the post-receive notification
# return unless Gitlab::GitalyClient.enabled?
#
# begin
# repository = wiki? ? project.wiki.repository : project.repository
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# Gitlab::GitalyClient::NotificationService.new(repository.raw_repository).post_receive
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# rescue GRPC::Unavailable => e
# render_api_error!(e, 500)
# end
end
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post '/post_receive' do
status 200
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PostReceive.perform_async(params[:gl_repository], params[:identifier],
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params[:changes], params[:push_options].to_a)
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broadcast_message = BroadcastMessage.current&.last&.message
reference_counter_decreased = Gitlab::ReferenceCounter.new(params[:gl_repository]).decrease
output = {
merge_request_urls: merge_request_urls,
broadcast_message: broadcast_message,
reference_counter_decreased: reference_counter_decreased
}
project = Gitlab::GlRepository.parse(params[:gl_repository]).first
user = identify(params[:identifier])
# A user is not guaranteed to be returned; an orphaned write deploy
# key could be used
if user
redirect_message = Gitlab::Checks::ProjectMoved.fetch_message(user.id, project.id)
project_created_message = Gitlab::Checks::ProjectCreated.fetch_message(user.id, project.id)
output[:redirected_message] = redirect_message if redirect_message
output[:project_created_message] = project_created_message if project_created_message
end
output
end
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end
end
end