package passtlsclientcert import ( "context" "crypto/tls" "crypto/x509" "encoding/pem" "net" "net/http" "net/http/httptest" "net/url" "regexp" "strings" "testing" "github.com/containous/traefik/v2/pkg/config/dynamic" "github.com/containous/traefik/v2/pkg/testhelpers" "github.com/stretchr/testify/require" ) const ( signingCA = `Certificate: Data: Version: 3 (0x2) Serial Number: 2 (0x2) Signature Algorithm: sha1WithRSAEncryption Issuer: DC=org, DC=cheese, O=Cheese, O=Cheese 2, OU=Cheese Section, OU=Cheese Section 2, CN=Simple Root CA, CN=Simple Root CA 2, C=FR, C=US, L=TOULOUSE, L=LYON, ST=Root State, ST=Root State 2/emailAddress=root@signing.com/emailAddress=root2@signing.com Validity Not Before: Dec 6 11:10:09 2018 GMT Not After : Dec 5 11:10:09 2028 GMT Subject: DC=org, DC=cheese, O=Cheese, O=Cheese 2, OU=Simple Signing Section, OU=Simple Signing Section 2, CN=Simple Signing CA, CN=Simple Signing CA 2, C=FR, C=US, L=TOULOUSE, L=LYON, ST=Signing State, ST=Signing State 2/emailAddress=simple@signing.com/emailAddress=simple2@signing.com Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public-Key: (2048 bit) Modulus: 00:c3:9d:9f:61:15:57:3f:78:cc:e7:5d:20:e2:3e: 2e:79:4a:c3:3a:0c:26:40:18:db:87:08:85:c2:f7: af:87:13:1a:ff:67:8a:b7:2b:58:a7:cc:89:dd:77: ff:5e:27:65:11:80:82:8f:af:a0:af:25:86:ec:a2: 4f:20:0e:14:15:16:12:d7:74:5a:c3:99:bd:3b:81: c8:63:6f:fc:90:14:86:d2:39:ee:87:b2:ff:6d:a5: 69:da:ab:5a:3a:97:cd:23:37:6a:4b:ba:63:cd:a1: a9:e6:79:aa:37:b8:d1:90:c9:24:b5:e8:70:fc:15: ad:39:97:28:73:47:66:f6:22:79:5a:b0:03:83:8a: f1:ca:ae:8b:50:1e:c8:fa:0d:9f:76:2e:00:c2:0e: 75:bc:47:5a:b6:d8:05:ed:5a:bc:6d:50:50:36:6b: ab:ab:69:f6:9b:1b:6c:7e:a8:9f:b2:33:3a:3c:8c: 6d:5e:83:ce:17:82:9e:10:51:a6:39:ec:98:4e:50: b7:b1:aa:8b:ac:bb:a1:60:1b:ea:31:3b:b8:0a:ea: 63:41:79:b5:ec:ee:19:e9:85:8e:f3:6d:93:80:da: 98:58:a2:40:93:a5:53:eb:1d:24:b6:66:07:ec:58: 10:63:e7:fa:6e:18:60:74:76:15:39:3c:f4:95:95: 7e:df Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Key Usage: critical Certificate Sign, CRL Sign X509v3 Basic Constraints: critical CA:TRUE, pathlen:0 X509v3 Subject Key Identifier: 1E:52:A2:E8:54:D5:37:EB:D5:A8:1D:E4:C2:04:1D:37:E2:F7:70:03 X509v3 Authority Key Identifier: keyid:36:70:35:AA:F0:F6:93:B2:86:5D:32:73:F9:41:5A:3F:3B:C8:BC:8B Signature Algorithm: sha1WithRSAEncryption 76:f3:16:21:27:6d:a2:2e:e8:18:49:aa:54:1e:f8:3b:07:fa: 65:50:d8:1f:a2:cf:64:6c:15:e0:0f:c8:46:b2:d7:b8:0e:cd: 05:3b:06:fb:dd:c6:2f:01:ae:bd:69:d3:bb:55:47:a9:f6:e5: ba:be:4b:45:fb:2e:3c:33:e0:57:d4:3e:8e:3e:11:f2:0a:f1: 7d:06:ab:04:2e:a5:76:20:c2:db:a4:68:5a:39:00:62:2a:1d: c2:12:b1:90:66:8c:36:a8:fd:83:d1:1b:da:23:a7:1d:5b:e6: 9b:40:c4:78:25:c7:b7:6b:75:35:cf:bb:37:4a:4f:fc:7e:32: 1f:8c:cf:12:d2:c9:c8:99:d9:4a:55:0a:1e:ac:de:b4:cb:7c: bf:c4:fb:60:2c:a8:f7:e7:63:5c:b0:1c:62:af:01:3c:fe:4d: 3c:0b:18:37:4c:25:fc:d0:b2:f6:b2:f1:c3:f4:0f:53:d6:1e: b5:fa:bc:d8:ad:dd:1c:f5:45:9f:af:fe:0a:01:79:92:9a:d8: 71:db:37:f3:1e:bd:fb:c7:1e:0a:0f:97:2a:61:f3:7b:19:93: 9c:a6:8a:69:cd:b0:f5:91:02:a5:1b:10:f4:80:5d:42:af:4e: 82:12:30:3e:d3:a7:11:14:ce:50:91:04:80:d7:2a:03:ef:71: 10:b8:db:a5 -----BEGIN CERTIFICATE----- MIIFzTCCBLWgAwIBAgIBAjANBgkqhkiG9w0BAQUFADCCAWQxEzARBgoJkiaJk/Is ZAEZFgNvcmcxFjAUBgoJkiaJk/IsZAEZFgZjaGVlc2UxDzANBgNVBAoMBkNoZWVz ZTERMA8GA1UECgwIQ2hlZXNlIDIxFzAVBgNVBAsMDkNoZWVzZSBTZWN0aW9uMRkw FwYDVQQLDBBDaGVlc2UgU2VjdGlvbiAyMRcwFQYDVQQDDA5TaW1wbGUgUm9vdCBD QTEZMBcGA1UEAwwQU2ltcGxlIFJvb3QgQ0EgMjELMAkGA1UEBhMCRlIxCzAJBgNV BAYTAlVTMREwDwYDVQQHDAhUT1VMT1VTRTENMAsGA1UEBwwETFlPTjETMBEGA1UE CAwKUm9vdCBTdGF0ZTEVMBMGA1UECAwMUm9vdCBTdGF0ZSAyMR8wHQYJKoZIhvcN AQkBFhByb290QHNpZ25pbmcuY29tMSAwHgYJKoZIhvcNAQkBFhFyb290MkBzaWdu aW5nLmNvbTAeFw0xODEyMDYxMTEwMDlaFw0yODEyMDUxMTEwMDlaMIIBhDETMBEG CgmSJomT8ixkARkWA29yZzEWMBQGCgmSJomT8ixkARkWBmNoZWVzZTEPMA0GA1UE CgwGQ2hlZXNlMREwDwYDVQQKDAhDaGVlc2UgMjEfMB0GA1UECwwWU2ltcGxlIFNp Z25pbmcgU2VjdGlvbjEhMB8GA1UECwwYU2ltcGxlIFNpZ25pbmcgU2VjdGlvbiAy MRowGAYDVQQDDBFTaW1wbGUgU2lnbmluZyBDQTEcMBoGA1UEAwwTU2ltcGxlIFNp Z25pbmcgQ0EgMjELMAkGA1UEBhMCRlIxCzAJBgNVBAYTAlVTMREwDwYDVQQHDAhU T1VMT1VTRTENMAsGA1UEBwwETFlPTjEWMBQGA1UECAwNU2lnbmluZyBTdGF0ZTEY MBYGA1UECAwPU2lnbmluZyBTdGF0ZSAyMSEwHwYJKoZIhvcNAQkBFhJzaW1wbGVA c2lnbmluZy5jb20xIjAgBgkqhkiG9w0BCQEWE3NpbXBsZTJAc2lnbmluZy5jb20w ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDDnZ9hFVc/eMznXSDiPi55 SsM6DCZAGNuHCIXC96+HExr/Z4q3K1inzIndd/9eJ2URgIKPr6CvJYbsok8gDhQV FhLXdFrDmb07gchjb/yQFIbSOe6Hsv9tpWnaq1o6l80jN2pLumPNoanmeao3uNGQ ySS16HD8Fa05lyhzR2b2InlasAODivHKrotQHsj6DZ92LgDCDnW8R1q22AXtWrxt UFA2a6urafabG2x+qJ+yMzo8jG1eg84Xgp4QUaY57JhOULexqousu6FgG+oxO7gK 6mNBebXs7hnphY7zbZOA2phYokCTpVPrHSS2ZgfsWBBj5/puGGB0dhU5PPSVlX7f AgMBAAGjZjBkMA4GA1UdDwEB/wQEAwIBBjASBgNVHRMBAf8ECDAGAQH/AgEAMB0G A1UdDgQWBBQeUqLoVNU369WoHeTCBB034vdwAzAfBgNVHSMEGDAWgBQ2cDWq8PaT soZdMnP5QVo/O8i8izANBgkqhkiG9w0BAQUFAAOCAQEAdvMWISdtoi7oGEmqVB74 Owf6ZVDYH6LPZGwV4A/IRrLXuA7NBTsG+93GLwGuvWnTu1VHqfblur5LRfsuPDPg V9Q+jj4R8grxfQarBC6ldiDC26RoWjkAYiodwhKxkGaMNqj9g9Eb2iOnHVvmm0DE eCXHt2t1Nc+7N0pP/H4yH4zPEtLJyJnZSlUKHqzetMt8v8T7YCyo9+djXLAcYq8B PP5NPAsYN0wl/NCy9rLxw/QPU9Yetfq82K3dHPVFn6/+CgF5kprYcds38x69+8ce Cg+XKmHzexmTnKaKac2w9ZECpRsQ9IBdQq9OghIwPtOnERTOUJEEgNcqA+9xELjb pQ== -----END CERTIFICATE----- ` minimalCheeseCrt = `-----BEGIN CERTIFICATE----- MIIEQDCCAygCFFRY0OBk/L5Se0IZRj3CMljawL2UMA0GCSqGSIb3DQEBCwUAMIIB hDETMBEGCgmSJomT8ixkARkWA29yZzEWMBQGCgmSJomT8ixkARkWBmNoZWVzZTEP MA0GA1UECgwGQ2hlZXNlMREwDwYDVQQKDAhDaGVlc2UgMjEfMB0GA1UECwwWU2lt cGxlIFNpZ25pbmcgU2VjdGlvbjEhMB8GA1UECwwYU2ltcGxlIFNpZ25pbmcgU2Vj dGlvbiAyMRowGAYDVQQDDBFTaW1wbGUgU2lnbmluZyBDQTEcMBoGA1UEAwwTU2lt cGxlIFNpZ25pbmcgQ0EgMjELMAkGA1UEBhMCRlIxCzAJBgNVBAYTAlVTMREwDwYD VQQHDAhUT1VMT1VTRTENMAsGA1UEBwwETFlPTjEWMBQGA1UECAwNU2lnbmluZyBT dGF0ZTEYMBYGA1UECAwPU2lnbmluZyBTdGF0ZSAyMSEwHwYJKoZIhvcNAQkBFhJz aW1wbGVAc2lnbmluZy5jb20xIjAgBgkqhkiG9w0BCQEWE3NpbXBsZTJAc2lnbmlu Zy5jb20wHhcNMTgxMjA2MTExMDM2WhcNMjEwOTI1MTExMDM2WjAzMQswCQYDVQQG EwJGUjETMBEGA1UECAwKU29tZS1TdGF0ZTEPMA0GA1UECgwGQ2hlZXNlMIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAskX/bUtwFo1gF2BTPNaNcTUMaRFu FMZozK8IgLjccZ4kZ0R9oFO6Yp8Zl/IvPaf7tE26PI7XP7eHriUdhnQzX7iioDd0 RZa68waIhAGc+xPzRFrP3b3yj3S2a9Rve3c0K+SCV+EtKAwsxMqQDhoo9PcBfo5B RHfht07uD5MncUcGirwN+/pxHV5xzAGPcc7On0/5L7bq/G+63nhu78zw9XyuLaHC PM5VbOUvpyIESJHbMMzTdFGL8ob9VKO+Kr1kVGdEA9i8FLGl3xz/GBKuW/JD0xyW DrU29mri5vYWHmkuv7ZWHGXnpXjTtPHwveE9/0/ArnmpMyR9JtqFr1oEvQIDAQAB MA0GCSqGSIb3DQEBCwUAA4IBAQBHta+NWXI08UHeOkGzOTGRiWXsOH2dqdX6gTe9 xF1AIjyoQ0gvpoGVvlnChSzmlUj+vnx/nOYGIt1poE3hZA3ZHZD/awsvGyp3GwWD IfXrEViSCIyF+8tNNKYyUcEO3xdAsAUGgfUwwF/mZ6MBV5+A/ZEEILlTq8zFt9dV vdKzIt7fZYxYBBHFSarl1x8pDgWXlf3hAufevGJXip9xGYmznF0T5cq1RbWJ4be3 /9K7yuWhuBYC3sbTbCneHBa91M82za+PIISc1ygCYtWSBoZKSAqLk0rkZpHaekDP WqeUSNGYV//RunTeuRDAf5OxehERb1srzBXhRZ3cZdzXbgR/ -----END CERTIFICATE----- ` completeCheeseCrt = `Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) Signature Algorithm: sha1WithRSAEncryption Issuer: DC=org, DC=cheese, O=Cheese, O=Cheese 2, OU=Simple Signing Section, OU=Simple Signing Section 2, CN=Simple Signing CA, CN=Simple Signing CA 2, C=FR, C=US, L=TOULOUSE, L=LYON, ST=Signing State, ST=Signing State 2/emailAddress=simple@signing.com/emailAddress=simple2@signing.com Validity Not Before: Dec 6 11:10:16 2018 GMT Not After : Dec 5 11:10:16 2020 GMT Subject: DC=org, DC=cheese, O=Cheese, O=Cheese 2, OU=Simple Signing Section, OU=Simple Signing Section 2, CN=*.cheese.org, CN=*.cheese.com, C=FR, C=US, L=TOULOUSE, L=LYON, ST=Cheese org state, ST=Cheese com state/emailAddress=cert@cheese.org/emailAddress=cert@scheese.com Subject Public Key Info: Public Key Algorithm: rsaEncryption RSA Public-Key: (2048 bit) Modulus: 00:de:77:fa:8d:03:70:30:39:dd:51:1b:cc:60:db: a9:5a:13:b1:af:fe:2c:c6:38:9b:88:0a:0f:8e:d9: 1b:a1:1d:af:0d:66:e4:13:5b:bc:5d:36:92:d7:5e: d0:fa:88:29:d3:78:e1:81:de:98:b2:a9:22:3f:bf: 8a:af:12:92:63:d4:a9:c3:f2:e4:7e:d2:dc:a2:c5: 39:1c:7a:eb:d7:12:70:63:2e:41:47:e0:f0:08:e8: dc:be:09:01:ec:28:09:af:35:d7:79:9c:50:35:d1: 6b:e5:87:7b:34:f6:d2:31:65:1d:18:42:69:6c:04: 11:83:fe:44:ae:90:92:2d:0b:75:39:57:62:e6:17: 2f:47:2b:c7:53:dd:10:2d:c9:e3:06:13:d2:b9:ba: 63:2e:3c:7d:83:6b:d6:89:c9:cc:9d:4d:bf:9f:e8: a3:7b:da:c8:99:2b:ba:66:d6:8e:f8:41:41:a0:c9: d0:5e:c8:11:a4:55:4a:93:83:87:63:04:63:41:9c: fb:68:04:67:c2:71:2f:f2:65:1d:02:5d:15:db:2c: d9:04:69:85:c2:7d:0d:ea:3b:ac:85:f8:d4:8f:0f: c5:70:b2:45:e1:ec:b2:54:0b:e9:f7:82:b4:9b:1b: 2d:b9:25:d4:ab:ca:8f:5b:44:3e:15:dd:b8:7f:b7: ee:f9 Exponent: 65537 (0x10001) X509v3 extensions: X509v3 Key Usage: critical Digital Signature, Key Encipherment X509v3 Basic Constraints: CA:FALSE X509v3 Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication X509v3 Subject Key Identifier: 94:BA:73:78:A2:87:FB:58:28:28:CF:98:3B:C2:45:70:16:6E:29:2F X509v3 Authority Key Identifier: keyid:1E:52:A2:E8:54:D5:37:EB:D5:A8:1D:E4:C2:04:1D:37:E2:F7:70:03 X509v3 Subject Alternative Name: DNS:*.cheese.org, DNS:*.cheese.net, DNS:*.cheese.com, IP Address:10.0.1.0, IP Address:10.0.1.2, email:test@cheese.org, email:test@cheese.net Signature Algorithm: sha1WithRSAEncryption 76:6b:05:b0:0e:34:11:b1:83:99:91:dc:ae:1b:e2:08:15:8b: 16:b2:9b:27:1c:02:ac:b5:df:1b:d0:d0:75:a4:2b:2c:5c:65: ed:99:ab:f7:cd:fe:38:3f:c3:9a:22:31:1b:ac:8c:1c:c2:f9: 5d:d4:75:7a:2e:72:c7:85:a9:04:af:9f:2a:cc:d3:96:75:f0: 8e:c7:c6:76:48:ac:45:a4:b9:02:1e:2f:c0:15:c4:07:08:92: cb:27:50:67:a1:c8:05:c5:3a:b3:a6:48:be:eb:d5:59:ab:a2: 1b:95:30:71:13:5b:0a:9a:73:3b:60:cc:10:d0:6a:c7:e5:d7: 8b:2f:f9:2e:98:f2:ff:81:14:24:09:e3:4b:55:57:09:1a:22: 74:f1:f6:40:13:31:43:89:71:0a:96:1a:05:82:1f:83:3a:87: 9b:17:25:ef:5a:55:f2:2d:cd:0d:4d:e4:81:58:b6:e3:8d:09: 62:9a:0c:bd:e4:e5:5c:f0:95:da:cb:c7:34:2c:34:5f:6d:fc: 60:7b:12:5b:86:fd:df:21:89:3b:48:08:30:bf:67:ff:8c:e6: 9b:53:cc:87:36:47:70:40:3b:d9:90:2a:d2:d2:82:c6:9c:f5: d1:d8:e0:e6:fd:aa:2f:95:7e:39:ac:fc:4e:d4:ce:65:b3:ec: c6:98:8a:31 -----BEGIN CERTIFICATE----- MIIGWjCCBUKgAwIBAgIBATANBgkqhkiG9w0BAQUFADCCAYQxEzARBgoJkiaJk/Is ZAEZFgNvcmcxFjAUBgoJkiaJk/IsZAEZFgZjaGVlc2UxDzANBgNVBAoMBkNoZWVz ZTERMA8GA1UECgwIQ2hlZXNlIDIxHzAdBgNVBAsMFlNpbXBsZSBTaWduaW5nIFNl Y3Rpb24xITAfBgNVBAsMGFNpbXBsZSBTaWduaW5nIFNlY3Rpb24gMjEaMBgGA1UE AwwRU2ltcGxlIFNpZ25pbmcgQ0ExHDAaBgNVBAMME1NpbXBsZSBTaWduaW5nIENB IDIxCzAJBgNVBAYTAkZSMQswCQYDVQQGEwJVUzERMA8GA1UEBwwIVE9VTE9VU0Ux DTALBgNVBAcMBExZT04xFjAUBgNVBAgMDVNpZ25pbmcgU3RhdGUxGDAWBgNVBAgM D1NpZ25pbmcgU3RhdGUgMjEhMB8GCSqGSIb3DQEJARYSc2ltcGxlQHNpZ25pbmcu Y29tMSIwIAYJKoZIhvcNAQkBFhNzaW1wbGUyQHNpZ25pbmcuY29tMB4XDTE4MTIw NjExMTAxNloXDTIwMTIwNTExMTAxNlowggF2MRMwEQYKCZImiZPyLGQBGRYDb3Jn MRYwFAYKCZImiZPyLGQBGRYGY2hlZXNlMQ8wDQYDVQQKDAZDaGVlc2UxETAPBgNV BAoMCENoZWVzZSAyMR8wHQYDVQQLDBZTaW1wbGUgU2lnbmluZyBTZWN0aW9uMSEw HwYDVQQLDBhTaW1wbGUgU2lnbmluZyBTZWN0aW9uIDIxFTATBgNVBAMMDCouY2hl ZXNlLm9yZzEVMBMGA1UEAwwMKi5jaGVlc2UuY29tMQswCQYDVQQGEwJGUjELMAkG A1UEBhMCVVMxETAPBgNVBAcMCFRPVUxPVVNFMQ0wCwYDVQQHDARMWU9OMRkwFwYD VQQIDBBDaGVlc2Ugb3JnIHN0YXRlMRkwFwYDVQQIDBBDaGVlc2UgY29tIHN0YXRl MR4wHAYJKoZIhvcNAQkBFg9jZXJ0QGNoZWVzZS5vcmcxHzAdBgkqhkiG9w0BCQEW EGNlcnRAc2NoZWVzZS5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQDed/qNA3AwOd1RG8xg26laE7Gv/izGOJuICg+O2RuhHa8NZuQTW7xdNpLXXtD6 iCnTeOGB3piyqSI/v4qvEpJj1KnD8uR+0tyixTkceuvXEnBjLkFH4PAI6Ny+CQHs KAmvNdd5nFA10Wvlh3s09tIxZR0YQmlsBBGD/kSukJItC3U5V2LmFy9HK8dT3RAt yeMGE9K5umMuPH2Da9aJycydTb+f6KN72siZK7pm1o74QUGgydBeyBGkVUqTg4dj BGNBnPtoBGfCcS/yZR0CXRXbLNkEaYXCfQ3qO6yF+NSPD8VwskXh7LJUC+n3grSb Gy25JdSryo9bRD4V3bh/t+75AgMBAAGjgeAwgd0wDgYDVR0PAQH/BAQDAgWgMAkG A1UdEwQCMAAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMB0GA1UdDgQW BBSUunN4oof7WCgoz5g7wkVwFm4pLzAfBgNVHSMEGDAWgBQeUqLoVNU369WoHeTC BB034vdwAzBhBgNVHREEWjBYggwqLmNoZWVzZS5vcmeCDCouY2hlZXNlLm5ldIIM Ki5jaGVlc2UuY29thwQKAAEAhwQKAAECgQ90ZXN0QGNoZWVzZS5vcmeBD3Rlc3RA Y2hlZXNlLm5ldDANBgkqhkiG9w0BAQUFAAOCAQEAdmsFsA40EbGDmZHcrhviCBWL FrKbJxwCrLXfG9DQdaQrLFxl7Zmr983+OD/DmiIxG6yMHML5XdR1ei5yx4WpBK+f KszTlnXwjsfGdkisRaS5Ah4vwBXEBwiSyydQZ6HIBcU6s6ZIvuvVWauiG5UwcRNb CppzO2DMENBqx+XXiy/5Lpjy/4EUJAnjS1VXCRoidPH2QBMxQ4lxCpYaBYIfgzqH mxcl71pV8i3NDU3kgVi2440JYpoMveTlXPCV2svHNCw0X238YHsSW4b93yGJO0gI ML9n/4zmm1PMhzZHcEA72ZAq0tKCxpz10djg5v2qL5V+Oaz8TtTOZbPsxpiKMQ== -----END CERTIFICATE----- ` minimalCert = `-----BEGIN CERTIFICATE----- MIIDGTCCAgECCQCqLd75YLi2kDANBgkqhkiG9w0BAQsFADBYMQswCQYDVQQGEwJG UjETMBEGA1UECAwKU29tZS1TdGF0ZTERMA8GA1UEBwwIVG91bG91c2UxITAfBgNV BAoMGEludGVybmV0IFdpZGdpdHMgUHR5IEx0ZDAeFw0xODA3MTgwODI4MTZaFw0x ODA4MTcwODI4MTZaMEUxCzAJBgNVBAYTAkZSMRMwEQYDVQQIDApTb21lLVN0YXRl MSEwHwYDVQQKDBhJbnRlcm5ldCBXaWRnaXRzIFB0eSBMdGQwggEiMA0GCSqGSIb3 DQEBAQUAA4IBDwAwggEKAoIBAQC/+frDMMTLQyXG34F68BPhQq0kzK4LIq9Y0/gl FjySZNn1C0QDWA1ubVCAcA6yY204I9cxcQDPNrhC7JlS5QA8Y5rhIBrqQlzZizAi Rj3NTrRjtGUtOScnHuJaWjLy03DWD+aMwb7q718xt5SEABmmUvLwQK+EjW2MeDwj y8/UEIpvrRDmdhGaqv7IFpIDkcIF7FowJ/hwDvx3PMc+z/JWK0ovzpvgbx69AVbw ZxCimeha65rOqVi+lEetD26le+WnOdYsdJ2IkmpPNTXGdfb15xuAc+gFXfMCh7Iw 3Ynl6dZtZM/Ok2kiA7/OsmVnRKkWrtBfGYkI9HcNGb3zrk6nAgMBAAEwDQYJKoZI hvcNAQELBQADggEBAC/R+Yvhh1VUhcbK49olWsk/JKqfS3VIDQYZg1Eo+JCPbwgS I1BSYVfMcGzuJTX6ua3m/AHzGF3Tap4GhF4tX12jeIx4R4utnjj7/YKkTvuEM2f4 xT56YqI7zalGScIB0iMeyNz1QcimRl+M/49au8ow9hNX8C2tcA2cwd/9OIj/6T8q SBRHc6ojvbqZSJCO0jziGDT1L3D+EDgTjED4nd77v/NRdP+egb0q3P0s4dnQ/5AV aQlQADUn61j3ScbGJ4NSeZFFvsl38jeRi/MEzp0bGgNBcPj6JHi7qbbauZcZfQ05 jECvgAY7Nfd9mZ1KtyNaW31is+kag7NsvjxU/kM= -----END CERTIFICATE-----` ) func getCleanCertContents(certContents []string) string { var re = regexp.MustCompile("-----BEGIN CERTIFICATE-----(?s)(.*)") var cleanedCertContent []string for _, certContent := range certContents { cert := re.FindString(certContent) cleanedCertContent = append(cleanedCertContent, sanitize([]byte(cert))) } return strings.Join(cleanedCertContent, ",") } func getCertificate(certContent string) *x509.Certificate { roots := x509.NewCertPool() ok := roots.AppendCertsFromPEM([]byte(signingCA)) if !ok { panic("failed to parse root certificate") } block, _ := pem.Decode([]byte(certContent)) if block == nil { panic("failed to parse certificate PEM") } cert, err := x509.ParseCertificate(block.Bytes) if err != nil { panic("failed to parse certificate: " + err.Error()) } return cert } func buildTLSWith(certContents []string) *tls.ConnectionState { var peerCertificates []*x509.Certificate for _, certContent := range certContents { peerCertificates = append(peerCertificates, getCertificate(certContent)) } return &tls.ConnectionState{PeerCertificates: peerCertificates} } var next = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { _, err := w.Write([]byte("bar")) if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError) } }) func getExpectedSanitized(s string) string { return url.QueryEscape(strings.Replace(s, "\n", "", -1)) } func TestSanitize(t *testing.T) { testCases := []struct { desc string toSanitize []byte expected string }{ { desc: "Empty", }, { desc: "With a minimal cert", toSanitize: []byte(minimalCheeseCrt), expected: getExpectedSanitized(`MIIEQDCCAygCFFRY0OBk/L5Se0IZRj3CMljawL2UMA0GCSqGSIb3DQEBCwUAMIIB hDETMBEGCgmSJomT8ixkARkWA29yZzEWMBQGCgmSJomT8ixkARkWBmNoZWVzZTEP MA0GA1UECgwGQ2hlZXNlMREwDwYDVQQKDAhDaGVlc2UgMjEfMB0GA1UECwwWU2lt cGxlIFNpZ25pbmcgU2VjdGlvbjEhMB8GA1UECwwYU2ltcGxlIFNpZ25pbmcgU2Vj dGlvbiAyMRowGAYDVQQDDBFTaW1wbGUgU2lnbmluZyBDQTEcMBoGA1UEAwwTU2lt cGxlIFNpZ25pbmcgQ0EgMjELMAkGA1UEBhMCRlIxCzAJBgNVBAYTAlVTMREwDwYD VQQHDAhUT1VMT1VTRTENMAsGA1UEBwwETFlPTjEWMBQGA1UECAwNU2lnbmluZyBT dGF0ZTEYMBYGA1UECAwPU2lnbmluZyBTdGF0ZSAyMSEwHwYJKoZIhvcNAQkBFhJz aW1wbGVAc2lnbmluZy5jb20xIjAgBgkqhkiG9w0BCQEWE3NpbXBsZTJAc2lnbmlu Zy5jb20wHhcNMTgxMjA2MTExMDM2WhcNMjEwOTI1MTExMDM2WjAzMQswCQYDVQQG EwJGUjETMBEGA1UECAwKU29tZS1TdGF0ZTEPMA0GA1UECgwGQ2hlZXNlMIIBIjAN BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAskX/bUtwFo1gF2BTPNaNcTUMaRFu FMZozK8IgLjccZ4kZ0R9oFO6Yp8Zl/IvPaf7tE26PI7XP7eHriUdhnQzX7iioDd0 RZa68waIhAGc+xPzRFrP3b3yj3S2a9Rve3c0K+SCV+EtKAwsxMqQDhoo9PcBfo5B RHfht07uD5MncUcGirwN+/pxHV5xzAGPcc7On0/5L7bq/G+63nhu78zw9XyuLaHC PM5VbOUvpyIESJHbMMzTdFGL8ob9VKO+Kr1kVGdEA9i8FLGl3xz/GBKuW/JD0xyW DrU29mri5vYWHmkuv7ZWHGXnpXjTtPHwveE9/0/ArnmpMyR9JtqFr1oEvQIDAQAB MA0GCSqGSIb3DQEBCwUAA4IBAQBHta+NWXI08UHeOkGzOTGRiWXsOH2dqdX6gTe9 xF1AIjyoQ0gvpoGVvlnChSzmlUj+vnx/nOYGIt1poE3hZA3ZHZD/awsvGyp3GwWD IfXrEViSCIyF+8tNNKYyUcEO3xdAsAUGgfUwwF/mZ6MBV5+A/ZEEILlTq8zFt9dV vdKzIt7fZYxYBBHFSarl1x8pDgWXlf3hAufevGJXip9xGYmznF0T5cq1RbWJ4be3 /9K7yuWhuBYC3sbTbCneHBa91M82za+PIISc1ygCYtWSBoZKSAqLk0rkZpHaekDP WqeUSNGYV//RunTeuRDAf5OxehERb1srzBXhRZ3cZdzXbgR/`), }, } for _, test := range testCases { test := test t.Run(test.desc, func(t *testing.T) { t.Parallel() require.Equal(t, test.expected, sanitize(test.toSanitize), "The sanitized certificates should be equal") }) } } func TestTLSClientHeadersWithPEM(t *testing.T) { testCases := []struct { desc string certContents []string // set the request TLS attribute if defined config dynamic.PassTLSClientCert expectedHeader string }{ { desc: "No TLS, no option", }, { desc: "TLS, no option", certContents: []string{minimalCheeseCrt}, }, { desc: "No TLS, with pem option true", config: dynamic.PassTLSClientCert{PEM: true}, }, { desc: "TLS with simple certificate, with pem option true", certContents: []string{minimalCheeseCrt}, config: dynamic.PassTLSClientCert{PEM: true}, expectedHeader: getCleanCertContents([]string{minimalCert}), }, { desc: "TLS with complete certificate, with pem option true", certContents: []string{minimalCheeseCrt}, config: dynamic.PassTLSClientCert{PEM: true}, expectedHeader: getCleanCertContents([]string{minimalCheeseCrt}), }, { desc: "TLS with two certificate, with pem option true", certContents: []string{minimalCert, minimalCheeseCrt}, config: dynamic.PassTLSClientCert{PEM: true}, expectedHeader: getCleanCertContents([]string{minimalCert, minimalCheeseCrt}), }, } for _, test := range testCases { tlsClientHeaders, err := New(context.Background(), next, test.config, "foo") require.NoError(t, err) res := httptest.NewRecorder() req := testhelpers.MustNewRequest(http.MethodGet, "http://example.com/foo", nil) if test.certContents != nil && len(test.certContents) > 0 { req.TLS = buildTLSWith(test.certContents) } tlsClientHeaders.ServeHTTP(res, req) test := test t.Run(test.desc, func(t *testing.T) { t.Parallel() require.Equal(t, http.StatusOK, res.Code, "Http Status should be OK") require.Equal(t, "bar", res.Body.String(), "Should be the expected body") if test.expectedHeader != "" { require.Equal(t, getCleanCertContents(test.certContents), req.Header.Get(xForwardedTLSClientCert), "The request header should contain the cleaned certificate") } else { require.Empty(t, req.Header.Get(xForwardedTLSClientCert)) } require.Empty(t, res.Header().Get(xForwardedTLSClientCert), "The response header should be always empty") }) } } func TestGetSans(t *testing.T) { urlFoo, err := url.Parse("my.foo.com") require.NoError(t, err) urlBar, err := url.Parse("my.bar.com") require.NoError(t, err) testCases := []struct { desc string cert *x509.Certificate // set the request TLS attribute if defined expected []string }{ { desc: "With nil", }, { desc: "Certificate without Sans", cert: &x509.Certificate{}, }, { desc: "Certificate with all Sans", cert: &x509.Certificate{ DNSNames: []string{"foo", "bar"}, EmailAddresses: []string{"test@test.com", "test2@test.com"}, IPAddresses: []net.IP{net.IPv4(10, 0, 0, 1), net.IPv4(10, 0, 0, 2)}, URIs: []*url.URL{urlFoo, urlBar}, }, expected: []string{"foo", "bar", "test@test.com", "test2@test.com", "10.0.0.1", "10.0.0.2", urlFoo.String(), urlBar.String()}, }, } for _, test := range testCases { sans := getSANs(test.cert) test := test t.Run(test.desc, func(t *testing.T) { t.Parallel() if len(test.expected) > 0 { for i, expected := range test.expected { require.Equal(t, expected, sans[i]) } } else { require.Empty(t, sans) } }) } } func TestTLSClientHeadersWithCertInfo(t *testing.T) { minimalCheeseCertAllInfo := `Subject="C=FR,ST=Some-State,O=Cheese",Issuer="DC=org,DC=cheese,C=FR,C=US,ST=Signing State,ST=Signing State 2,L=TOULOUSE,L=LYON,O=Cheese,O=Cheese 2,CN=Simple Signing CA 2",NB=1544094636,NA=1632568236,SAN=` completeCertAllInfo := `Subject="DC=org,DC=cheese,C=FR,C=US,ST=Cheese org state,ST=Cheese com state,L=TOULOUSE,L=LYON,O=Cheese,O=Cheese 2,CN=*.cheese.com",Issuer="DC=org,DC=cheese,C=FR,C=US,ST=Signing State,ST=Signing State 2,L=TOULOUSE,L=LYON,O=Cheese,O=Cheese 2,CN=Simple Signing CA 2",NB=1544094616,NA=1607166616,SAN=*.cheese.org,*.cheese.net,*.cheese.com,test@cheese.org,test@cheese.net,10.0.1.0,10.0.1.2` testCases := []struct { desc string certContents []string // set the request TLS attribute if defined config dynamic.PassTLSClientCert expectedHeader string }{ { desc: "No TLS, no option", }, { desc: "TLS, no option", certContents: []string{minimalCert}, }, { desc: "No TLS, with subject info", config: dynamic.PassTLSClientCert{ Info: &dynamic.TLSClientCertificateInfo{ Subject: &dynamic.TLSCLientCertificateDNInfo{ CommonName: true, Organization: true, Locality: true, Province: true, Country: true, SerialNumber: true, }, }, }, }, { desc: "No TLS, with pem option false with empty subject info", config: dynamic.PassTLSClientCert{ PEM: false, Info: &dynamic.TLSClientCertificateInfo{ Subject: &dynamic.TLSCLientCertificateDNInfo{}, }, }, }, { desc: "TLS with simple certificate, with all info", certContents: []string{minimalCheeseCrt}, config: dynamic.PassTLSClientCert{ Info: &dynamic.TLSClientCertificateInfo{ NotAfter: true, NotBefore: true, Sans: true, Subject: &dynamic.TLSCLientCertificateDNInfo{ CommonName: true, Country: true, DomainComponent: true, Locality: true, Organization: true, Province: true, SerialNumber: true, }, Issuer: &dynamic.TLSCLientCertificateDNInfo{ CommonName: true, Country: true, DomainComponent: true, Locality: true, Organization: true, Province: true, SerialNumber: true, }, }, }, expectedHeader: url.QueryEscape(minimalCheeseCertAllInfo), }, { desc: "TLS with simple certificate, with some info", certContents: []string{minimalCheeseCrt}, config: dynamic.PassTLSClientCert{ Info: &dynamic.TLSClientCertificateInfo{ NotAfter: true, Sans: true, Subject: &dynamic.TLSCLientCertificateDNInfo{ Organization: true, }, Issuer: &dynamic.TLSCLientCertificateDNInfo{ Country: true, }, }, }, expectedHeader: url.QueryEscape(`Subject="O=Cheese",Issuer="C=FR,C=US",NA=1632568236,SAN=`), }, { desc: "TLS with complete certificate, with all info", certContents: []string{completeCheeseCrt}, config: dynamic.PassTLSClientCert{ Info: &dynamic.TLSClientCertificateInfo{ NotAfter: true, NotBefore: true, Sans: true, Subject: &dynamic.TLSCLientCertificateDNInfo{ Country: true, Province: true, Locality: true, Organization: true, CommonName: true, SerialNumber: true, DomainComponent: true, }, Issuer: &dynamic.TLSCLientCertificateDNInfo{ Country: true, Province: true, Locality: true, Organization: true, CommonName: true, SerialNumber: true, DomainComponent: true, }, }, }, expectedHeader: url.QueryEscape(completeCertAllInfo), }, { desc: "TLS with 2 certificates, with all info", certContents: []string{minimalCheeseCrt, completeCheeseCrt}, config: dynamic.PassTLSClientCert{ Info: &dynamic.TLSClientCertificateInfo{ NotAfter: true, NotBefore: true, Sans: true, Subject: &dynamic.TLSCLientCertificateDNInfo{ Country: true, Province: true, Locality: true, Organization: true, CommonName: true, SerialNumber: true, DomainComponent: true, }, Issuer: &dynamic.TLSCLientCertificateDNInfo{ Country: true, Province: true, Locality: true, Organization: true, CommonName: true, SerialNumber: true, DomainComponent: true, }, }, }, expectedHeader: url.QueryEscape(strings.Join([]string{minimalCheeseCertAllInfo, completeCertAllInfo}, ";")), }, } for _, test := range testCases { tlsClientHeaders, err := New(context.Background(), next, test.config, "foo") require.NoError(t, err) res := httptest.NewRecorder() req := testhelpers.MustNewRequest(http.MethodGet, "http://example.com/foo", nil) if test.certContents != nil && len(test.certContents) > 0 { req.TLS = buildTLSWith(test.certContents) } tlsClientHeaders.ServeHTTP(res, req) test := test t.Run(test.desc, func(t *testing.T) { t.Parallel() require.Equal(t, http.StatusOK, res.Code, "Http Status should be OK") require.Equal(t, "bar", res.Body.String(), "Should be the expected body") if test.expectedHeader != "" { require.Equal(t, test.expectedHeader, req.Header.Get(xForwardedTLSClientCertInfo), "The request header should contain the cleaned certificate") } else { require.Empty(t, req.Header.Get(xForwardedTLSClientCertInfo)) } require.Empty(t, res.Header().Get(xForwardedTLSClientCertInfo), "The response header should be always empty") }) } }