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require 'spec_helper'
describe Gitlab::LDAP::DN do
using RSpec::Parameterized::TableSyntax
describe '#initialize' do
subject { described_class.new(given).to_s_normalized }
# Regarding the telephoneNumber test:
#
# I am not sure whether a space after the telephoneNumber plus sign is valid,
# and I am not sure if this is "proper" behavior under these conditions, and
# I am not sure if it matters to us or anyone else, so rather than dig
# through RFCs, I am only documenting the behavior here.
where(:test_description, :given, :expected) do
'strips extraneous whitespace' | 'uid =John Smith , ou = People, dc= example,dc =com' | 'uid=john smith,ou=people,dc=example,dc=com'
'strips extraneous whitespace for a DN with a single RDN' | 'uid = John Smith' | 'uid=john smith'
'unescapes non-reserved, non-special Unicode characters' | 'uid = Sebasti\\c3\\a1n\\ C.\\20Smith\\ , ou=People (aka. \\22humans\\") ,dc=example, dc=com' | 'uid=sebastián c. smith \\ ,ou=people (aka. \\"humans\\"),dc=example,dc=com'
'downcases the whole string' | 'UID=John Smith,ou=People,dc=example,dc=com' | 'uid=john smith,ou=people,dc=example,dc=com'
'for a null DN (empty string), returns empty string and does not error' | '' | ''
'does not strip an escaped leading space in an attribute value' | 'uid=\\ John Smith,ou=People,dc=example,dc=com' | 'uid=\\ john smith,ou=people,dc=example,dc=com'
'does not strip an escaped trailing space in an attribute value' | 'uid=John Smith\\ ,ou=People,dc=example,dc=com' | 'uid=john smith\\ ,ou=people,dc=example,dc=com'
'does not strip an escaped leading newline in an attribute value' | 'uid=\\\nJohn Smith,ou=People,dc=example,dc=com' | 'uid=\\\njohn smith,ou=people,dc=example,dc=com'
'does not strip an escaped trailing newline in an attribute value' | 'uid=John Smith\\\n,ou=People,dc=example,dc=com' | 'uid=john smith\\\n,ou=people,dc=example,dc=com'
'does not strip an unescaped leading newline (actually an invalid DN)' | 'uid=\nJohn Smith,ou=People,dc=example,dc=com' | 'uid=\njohn smith,ou=people,dc=example,dc=com'
'does not strip an unescaped trailing newline (actually an invalid DN)' | 'uid=John Smith\n ,ou=People,dc=example,dc=com' | 'uid=john smith\n,ou=people,dc=example,dc=com'
'does not strip if no extraneous whitespace' | 'uid=John Smith,ou=People,dc=example,dc=com' | 'uid=john smith,ou=people,dc=example,dc=com'
'does not modify an escaped equal sign in an attribute value' | 'uid= foo \\= bar' | 'uid=foo \\= bar'
'converts an escaped hex equal sign to an escaped equal sign in an attribute value' | 'uid= foo \\3D bar' | 'uid=foo \\= bar'
'does not modify an escaped comma in an attribute value' | 'uid= John C. Smith, ou=San Francisco\\, CA' | 'uid=john c. smith,ou=san francisco\\, ca'
'converts an escaped hex comma to an escaped comma in an attribute value' | 'uid= John C. Smith, ou=San Francisco\\2C CA' | 'uid=john c. smith,ou=san francisco\\, ca'
'does not modify an escaped hex carriage return character in an attribute value' | 'uid= John C. Smith, ou=San Francisco\\,\\0DCA' | 'uid=john c. smith,ou=san francisco\\,\\0dca'
'does not modify an escaped hex line feed character in an attribute value' | 'uid= John C. Smith, ou=San Francisco\\,\\0ACA' | 'uid=john c. smith,ou=san francisco\\,\\0aca'
'does not modify an escaped hex CRLF in an attribute value' | 'uid= John C. Smith, ou=San Francisco\\,\\0D\\0ACA' | 'uid=john c. smith,ou=san francisco\\,\\0d\\0aca'
'allows attribute type name OIDs' | '0.9.2342.19200300.100.1.25=Example,0.9.2342.19200300.100.1.25=Com' | '0.9.2342.19200300.100.1.25=example,0.9.2342.19200300.100.1.25=com'
'strips extraneous whitespace from attribute type name OIDs' | '0.9.2342.19200300.100.1.25 = Example, 0.9.2342.19200300.100.1.25 = Com' | '0.9.2342.19200300.100.1.25=example,0.9.2342.19200300.100.1.25=com'
end
with_them do
it 'normalizes the DN' do
assert_generic_test(test_description, subject, expected)
end
end
context 'when we do not support the given DN format' do
context 'multivalued RDNs' do
context 'without extraneous whitespace' do
let(:given) { 'uid=john smith+telephonenumber=+1 555-555-5555,ou=people,dc=example,dc=com' }
it 'raises UnsupportedDnFormatError' do
expect{ subject }.to raise_error(Gitlab::LDAP::UnsupportedDnFormatError)
end
end
context 'with extraneous whitespace' do
context 'around the phone number plus sign' do
let(:given) { 'uid = John Smith + telephoneNumber = + 1 555-555-5555 , ou = People,dc=example,dc=com' }
it 'raises UnsupportedDnFormatError' do
expect{ subject }.to raise_error(Gitlab::LDAP::UnsupportedDnFormatError)
end
end
context 'not around the phone number plus sign' do
let(:given) { 'uid = John Smith + telephoneNumber = +1 555-555-5555 , ou = People,dc=example,dc=com' }
it 'raises UnsupportedDnFormatError' do
expect{ subject }.to raise_error(Gitlab::LDAP::UnsupportedDnFormatError)
end
end
end
end
end
context 'when the given DN is malformed' do
context 'when ending with a comma' do
let(:given) { 'uid=John Smith,' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'DN string ended unexpectedly')
end
end
context 'when given a BER encoded attribute value with a space in it' do
let(:given) { '0.9.2342.19200300.100.1.25=#aa aa' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, "Expected the end of an attribute value, but got \"a\"")
end
end
context 'when given a BER encoded attribute value with a non-hex character in it' do
let(:given) { '0.9.2342.19200300.100.1.25=#aaXaaa' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, "Expected the first character of a hex pair, but got \"x\"")
end
end
context 'when given a BER encoded attribute value with a non-hex character in it' do
let(:given) { '0.9.2342.19200300.100.1.25=#aaaYaa' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, "Expected the second character of a hex pair, but got \"y\"")
end
end
context 'when given a hex pair with a non-hex character in it, inside double quotes' do
let(:given) { 'uid="Sebasti\\cX\\a1n"' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, "Expected the second character of a hex pair inside a double quoted value, but got \"x\"")
end
end
context 'without a name value pair' do
let(:given) { 'John' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'DN string ended unexpectedly')
end
end
context 'with an open (as opposed to closed) double quote' do
let(:given) { 'cn="James' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'DN string ended unexpectedly')
end
end
context 'with an invalid escaped hex code' do
let(:given) { 'cn=J\ames' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'Invalid escaped hex code "\am"')
end
end
context 'with a value ending with the escape character' do
let(:given) { 'cn=\\' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'DN string ended unexpectedly')
end
end
context 'with an invalid OID attribute type name' do
let(:given) { '1.2.d=Value' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'Unrecognized RDN OID attribute type name character "d"')
end
end
context 'with a period in a non-OID attribute type name' do
let(:given) { 'd1.2=Value' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'Unrecognized RDN attribute type name character "."')
end
end
context 'when starting with non-space, non-alphanumeric character' do
let(:given) { ' -uid=John Smith' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'Unrecognized first character of an RDN attribute type name "-"')
end
end
context 'when given a UID with an escaped equal sign' do
let(:given) { 'uid\\=john' }
it 'raises MalformedDnError' do
expect{ subject }.to raise_error(Gitlab::LDAP::MalformedDnError, 'Unrecognized RDN attribute type name character "\\"')
end
end
end
end
def assert_generic_test(test_description, got, expected)
test_failure_message = "Failed test description: '#{test_description}'\n\n expected: \"#{expected}\"\n got: \"#{got}\""
expect(got).to eq(expected), test_failure_message
end
end
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