debian-mirror-gitlab/spec/lib/gitlab/mail_room/authenticator_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::MailRoom::Authenticator do
let(:yml_config) do
{
enabled: true,
address: 'address@example.com'
}
end
let(:incoming_email_secret_path) { '/path/to/incoming_email_secret' }
let(:incoming_email_config) { yml_config.merge(secret_file: incoming_email_secret_path) }
let(:service_desk_email_secret_path) { '/path/to/service_desk_email_secret' }
let(:service_desk_email_config) { yml_config.merge(secret_file: service_desk_email_secret_path) }
let(:configs) do
{
incoming_email: incoming_email_config,
service_desk_email: service_desk_email_config
}
end
before do
allow(Gitlab::MailRoom).to receive(:enabled_configs).and_return(configs)
described_class.clear_memoization(:jwt_secret_incoming_email)
described_class.clear_memoization(:jwt_secret_service_desk_email)
end
after do
described_class.clear_memoization(:jwt_secret_incoming_email)
described_class.clear_memoization(:jwt_secret_service_desk_email)
end
around do |example|
freeze_time do
example.run
end
end
describe '#verify_api_request' do
let(:incoming_email_secret) { SecureRandom.hex(16) }
let(:service_desk_email_secret) { SecureRandom.hex(16) }
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let(:payload) { { iss: Gitlab::MailRoom::INTERNAL_API_REQUEST_JWT_ISSUER, iat: (Time.current - 5.minutes + 1.second).to_i } }
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before do
allow(described_class).to receive(:secret).with(:incoming_email).and_return(incoming_email_secret)
allow(described_class).to receive(:secret).with(:service_desk_email).and_return(service_desk_email_secret)
end
context 'verify a valid token' do
it 'returns the decoded payload' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'incoming_email')[0]).to match a_hash_including(
"iss" => "gitlab-mailroom",
"iat" => be_a(Integer)
)
encoded_token = JWT.encode(payload, service_desk_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'service_desk_email')[0]).to match a_hash_including(
"iss" => "gitlab-mailroom",
"iat" => be_a(Integer)
)
end
end
context 'verify an invalid token' do
it 'returns false' do
encoded_token = JWT.encode(payload, 'wrong secret', 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'incoming_email')).to eq(false)
end
end
context 'verify a valid token but wrong mailbox type' do
it 'returns false' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'service_desk_email')).to eq(false)
end
end
context 'verify a valid token but wrong issuer' do
let(:payload) { { iss: 'invalid_issuer' } }
it 'returns false' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'incoming_email')).to eq(false)
end
end
context 'verify a valid token but expired' do
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let(:payload) { { iss: Gitlab::MailRoom::INTERNAL_API_REQUEST_JWT_ISSUER, iat: (Time.current - 5.minutes - 1.second).to_i } }
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it 'returns false' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'incoming_email')).to eq(false)
end
end
context 'verify a valid token but wrong header field' do
it 'returns false' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
headers = { 'a-wrong-header' => encoded_token }
expect(described_class.verify_api_request(headers, 'incoming_email')).to eq(false)
end
end
context 'verify headers for a disabled mailbox type' do
let(:configs) { { service_desk_email: service_desk_email_config } }
it 'returns false' do
encoded_token = JWT.encode(payload, incoming_email_secret, 'HS256')
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => encoded_token }
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expect(described_class.verify_api_request(headers, 'incoming_email')).to eq(false)
end
end
context 'verify headers for a non-existing mailbox type' do
it 'returns false' do
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headers = { Gitlab::MailRoom::INTERNAL_API_REQUEST_HEADER => 'something' }
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expect(described_class.verify_api_request(headers, 'invalid_mailbox_type')).to eq(false)
end
end
end
describe '#secret' do
let(:incoming_email_secret) { SecureRandom.hex(16) }
let(:service_desk_email_secret) { SecureRandom.hex(16) }
context 'the secret is valid' do
before do
allow(described_class).to receive(:read_secret).with(incoming_email_secret_path).and_return(incoming_email_secret).once
allow(described_class).to receive(:read_secret).with(service_desk_email_secret_path).and_return(service_desk_email_secret).once
end
it 'returns the memorized secret from a file' do
expect(described_class.secret(:incoming_email)).to eql(incoming_email_secret)
# The second call does not trigger secret read again
expect(described_class.secret(:incoming_email)).to eql(incoming_email_secret)
expect(described_class).to have_received(:read_secret).with(incoming_email_secret_path).once
expect(described_class.secret(:service_desk_email)).to eql(service_desk_email_secret)
# The second call does not trigger secret read again
expect(described_class.secret(:service_desk_email)).to eql(service_desk_email_secret)
expect(described_class).to have_received(:read_secret).with(service_desk_email_secret_path).once
end
end
context 'the secret file is not configured' do
let(:incoming_email_config) { yml_config }
it 'raises a SecretConfigurationError exception' do
expect do
described_class.secret(:incoming_email)
end.to raise_error(described_class::SecretConfigurationError, "incoming_email's secret_file configuration is missing")
end
end
context 'the secret file not found' do
before do
allow(described_class).to receive(:read_secret).with(incoming_email_secret_path).and_raise(Errno::ENOENT)
end
it 'raises a SecretConfigurationError exception' do
expect do
described_class.secret(:incoming_email)
end.to raise_error(described_class::SecretConfigurationError, "Fail to read incoming_email's secret: No such file or directory")
end
end
end
end