1 files changed, 376 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_security_policy.rb b/test/rubygems/test_gem_security_policy.rb
new file mode 100644
index 0000000000..4b9978c430
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+++ b/test/rubygems/test_gem_security_policy.rb
@@ -0,0 +1,376 @@
+# coding: UTF-8
+
+require 'rubygems/test_case'
+
+class TestGemSecurityPolicy < Gem::TestCase
+
+  ALTERNATE_KEY    = load_key 'alternate'
+  INVALID_KEY      = load_key 'invalid'
+  CHILD_KEY        = load_key 'child'
+  GRANDCHILD_KEY   = load_key 'grandchild'
+  INVALIDCHILD_KEY = load_key 'invalidchild'
+
+  ALTERNATE_CERT      = load_cert 'alternate'
+  CHILD_CERT          = load_cert 'child'
+  EXPIRED_CERT        = load_cert 'expired'
+  FUTURE_CERT         = load_cert 'future'
+  GRANDCHILD_CERT     = load_cert 'grandchild'
+  INVALIDCHILD_CERT   = load_cert 'invalidchild'
+  INVALID_ISSUER_CERT = load_cert 'invalid_issuer'
+  INVALID_SIGNER_CERT = load_cert 'invalid_signer'
+  WRONG_KEY_CERT      = load_cert 'wrong_key'
+
+  def setup
+    super
+
+    @spec = quick_gem 'a' do |s|
+      s.description = 'π'
+      s.files = %w[lib/code.rb]
+    end
+
+    @sha1 = OpenSSL::Digest::SHA1
+    @trust_dir = Gem::Security.trust_dir.dir # HACK use the object
+
+    @almost_no = Gem::Security::AlmostNoSecurity
+    @low       = Gem::Security::LowSecurity
+    @high      = Gem::Security::HighSecurity
+
+    @chain = Gem::Security::Policy.new(
+      'Chain',
+      :verify_data   => true,
+      :verify_signer => true,
+      :verify_chain  => true,
+      :verify_root   => false,
+      :only_trusted  => false,
+      :only_signed   => false
+    )
+
+    @root = Gem::Security::Policy.new(
+      'Root',
+      :verify_data   => true,
+      :verify_signer => true,
+      :verify_chain  => true,
+      :verify_root   => true,
+      :only_trusted  => false,
+      :only_signed   => false
+    )
+  end
+
+  def test_check_data
+    data = digest 'hello'
+
+    signature = sign data
+
+    assert @almost_no.check_data(PUBLIC_KEY, @sha1, signature, data)
+  end
+
+  def test_check_data_invalid
+    data = digest 'hello'
+
+    signature = sign data
+
+    invalid = digest 'hello!'
+
+    e = assert_raises Gem::Security::Exception do
+      @almost_no.check_data PUBLIC_KEY, @sha1, signature, invalid
+    end
+
+    assert_equal 'invalid signature', e.message
+  end
+
+  def test_check_chain
+    chain = [PUBLIC_CERT, CHILD_CERT, GRANDCHILD_CERT]
+
+    assert @chain.check_chain chain, Time.now
+  end
+
+  def test_check_chain_invalid
+    chain = [PUBLIC_CERT, CHILD_CERT, INVALIDCHILD_CERT]
+
+    e = assert_raises Gem::Security::Exception do
+      @chain.check_chain chain, Time.now
+    end
+
+    assert_equal "invalid signing chain: " \
+                 "certificate #{INVALIDCHILD_CERT.subject} " \
+                 "was not issued by #{CHILD_CERT.subject}", e.message
+  end
+
+  def test_check_cert
+    assert @low.check_cert(PUBLIC_CERT, nil, Time.now)
+  end
+
+  def test_check_cert_expired
+    e = assert_raises Gem::Security::Exception do
+      @low.check_cert EXPIRED_CERT, nil, Time.now
+    end
+
+    assert_equal "certificate #{EXPIRED_CERT.subject} " \
+                 "not valid after #{EXPIRED_CERT.not_after}",
+                 e.message
+  end
+
+  def test_check_cert_future
+    e = assert_raises Gem::Security::Exception do
+      @low.check_cert FUTURE_CERT, nil, Time.now
+    end
+
+    assert_equal "certificate #{FUTURE_CERT.subject} " \
+                 "not valid before #{FUTURE_CERT.not_before}",
+                 e.message
+  end
+
+  def test_check_cert_invalid_issuer
+    e = assert_raises Gem::Security::Exception do
+      @low.check_cert INVALID_ISSUER_CERT, PUBLIC_CERT, Time.now
+    end
+
+    assert_equal "certificate #{INVALID_ISSUER_CERT.subject} " \
+                 "was not issued by #{PUBLIC_CERT.subject}",
+                 e.message
+  end
+
+  def test_check_cert_issuer
+    assert @low.check_cert(CHILD_CERT, PUBLIC_CERT, Time.now)
+  end
+
+  def test_check_key
+    assert @almost_no.check_key(PUBLIC_CERT, PRIVATE_KEY)
+  end
+
+  def test_check_key_wrong_key
+    e = assert_raises Gem::Security::Exception do
+      @almost_no.check_key(PUBLIC_CERT, ALTERNATE_KEY)
+    end
+
+    assert_equal "certificate #{PUBLIC_CERT.subject} " \
+                 "does not match the signing key", e.message
+  end
+
+  def test_check_root
+    chain = [PUBLIC_CERT, CHILD_CERT, INVALIDCHILD_CERT]
+
+    assert @chain.check_root chain, Time.now
+  end
+
+  def test_check_root_invalid_signer
+    chain = [INVALID_SIGNER_CERT]
+
+    e = assert_raises Gem::Security::Exception do
+      @chain.check_root chain, Time.now
+    end
+
+    assert_equal "certificate #{INVALID_SIGNER_CERT.subject} " \
+                 "was not issued by #{INVALID_SIGNER_CERT.issuer}",
+                 e.message
+  end
+
+  def test_check_root_not_self_signed
+    chain = [INVALID_ISSUER_CERT]
+
+    e = assert_raises Gem::Security::Exception do
+      @chain.check_root chain, Time.now
+    end
+
+    assert_equal "root certificate #{INVALID_ISSUER_CERT.subject} " \
+                 "is not self-signed (issuer #{INVALID_ISSUER_CERT.issuer})",
+                 e.message
+  end
+
+  def test_check_trust
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    assert @high.check_trust [PUBLIC_CERT], @sha1, @trust_dir
+  end
+
+  def test_check_trust_child
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    assert @high.check_trust [PUBLIC_CERT, CHILD_CERT], @sha1, @trust_dir
+  end
+
+  def test_check_trust_mismatch
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    e = assert_raises Gem::Security::Exception do
+      @high.check_trust [WRONG_KEY_CERT], @sha1, @trust_dir
+    end
+
+    assert_equal "trusted root certificate #{PUBLIC_CERT.subject} checksum " \
+                 "does not match signing root certificate checksum", e.message
+  end
+
+  def test_check_trust_no_trust
+    e = assert_raises Gem::Security::Exception do
+      @high.check_trust [PUBLIC_CERT], @sha1, @trust_dir
+    end
+
+    assert_equal "root cert #{PUBLIC_CERT.subject} is not trusted", e.message
+  end
+
+  def test_check_trust_no_trust_child
+    e = assert_raises Gem::Security::Exception do
+      @high.check_trust [PUBLIC_CERT, CHILD_CERT], @sha1, @trust_dir
+    end
+
+    assert_equal "root cert #{PUBLIC_CERT.subject} is not trusted " \
+                 "(root of signing cert #{CHILD_CERT.subject})", e.message
+  end
+
+  def test_verify
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    assert @almost_no.verify [PUBLIC_CERT]
+  end
+
+  def test_verify_chain_signatures
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data, PRIVATE_KEY) }
+
+    assert @high.verify [PUBLIC_CERT], nil, digest, signature
+  end
+
+  def test_verify_chain_key
+    assert @almost_no.verify [PUBLIC_CERT], PRIVATE_KEY
+  end
+
+  def test_verify_signatures_chain
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data, CHILD_KEY) }
+
+    @spec.cert_chain = [PUBLIC_CERT, CHILD_CERT]
+
+    assert @chain.verify_signatures @spec, digest, signature
+  end
+
+  def test_verify_signatures_data
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data) }
+
+    @spec.cert_chain = [PUBLIC_CERT]
+
+    @almost_no.verify_signatures @spec, digest, signature
+  end
+
+  def test_verify_signatures_root
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data, CHILD_KEY) }
+
+    @spec.cert_chain = [PUBLIC_CERT, CHILD_CERT]
+
+    assert @root.verify_signatures @spec, digest, signature
+  end
+
+  def test_verify_signatures_signer
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data) }
+
+    @spec.cert_chain = [PUBLIC_CERT]
+
+    assert @low.verify_signatures @spec, digest, signature
+  end
+
+  def test_verify_signatures_trust
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    data = digest 'hello'
+    digest    = { 'SHA1' => { 0 => data } }
+    signature = { 0 => sign(data, PRIVATE_KEY) }
+
+    @spec.cert_chain = [PUBLIC_CERT]
+
+    assert @high.verify_signatures @spec, digest, signature
+  end
+
+  def test_verify_signatures
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    @spec.cert_chain = [PUBLIC_CERT.to_s]
+
+    metadata_gz = Gem.gzip @spec.to_yaml
+
+    package = Gem::Package.new 'nonexistent.gem'
+    package.checksums['SHA1'] = {}
+
+    s = StringIO.new metadata_gz
+    def s.full_name() 'metadata.gz' end
+
+    digests = package.digest s
+    metadata_gz_digest = digests['SHA1']['metadata.gz']
+
+    signatures = {}
+    signatures['metadata.gz'] =
+      PRIVATE_KEY.sign @sha1.new, metadata_gz_digest.digest
+
+    assert @high.verify_signatures @spec, digests, signatures
+  end
+
+  def test_verify_signatures_missing
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    @spec.cert_chain = [PUBLIC_CERT.to_s]
+
+    metadata_gz = Gem.gzip @spec.to_yaml
+
+    package = Gem::Package.new 'nonexistent.gem'
+    package.checksums['SHA1'] = {}
+
+    s = StringIO.new metadata_gz
+    def s.full_name() 'metadata.gz' end
+
+    digests = package.digest s
+    digests['SHA1']['data.tar.gz'] = OpenSSL::Digest.new 'SHA1', 'hello'
+
+    metadata_gz_digest = digests['SHA1']['metadata.gz']
+
+    signatures = {}
+    signatures['metadata.gz'] =
+      PRIVATE_KEY.sign @sha1.new, metadata_gz_digest.digest
+
+    e = assert_raises Gem::Security::Exception do
+      @high.verify_signatures @spec, digests, signatures
+    end
+
+    assert_equal 'missing signature for data.tar.gz', e.message
+  end
+
+  def test_verify_signatures_none
+    Gem::Security.trust_dir.trust_cert PUBLIC_CERT
+
+    @spec.cert_chain = [PUBLIC_CERT.to_s]
+
+    metadata_gz = Gem.gzip @spec.to_yaml
+
+    package = Gem::Package.new 'nonexistent.gem'
+    package.checksums['SHA1'] = {}
+
+    s = StringIO.new metadata_gz
+    def s.full_name() 'metadata.gz' end
+
+    digests = package.digest s
+    digests['SHA1']['data.tar.gz'] = OpenSSL::Digest.new 'SHA1', 'hello'
+
+    assert_raises Gem::Security::Exception do
+      @almost_no.verify_signatures @spec, digests, {}
+    end
+  end
+
+  def digest data
+    digester = @sha1.new
+    digester << data
+    digester
+  end
+
+  def sign data, key = PRIVATE_KEY
+    key.sign @sha1.new, data.digest
+  end
+
+end
+