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(ns puppetlabs.ssl-utils.testutils
(:import (java.io ByteArrayOutputStream ByteArrayInputStream)
(java.security.cert X509Certificate)
(java.security MessageDigest PublicKey)
(javax.security.auth.x500 X500Principal)
(org.bouncycastle.asn1.x500 X500Name)
(org.bouncycastle.pkcs PKCS10CertificationRequest)
(org.joda.time DateTime Period)
(org.bouncycastle.asn1.x509 SubjectPublicKeyInfo)
(com.puppetlabs.ssl_utils SSLUtils))
(:require [clojure.test :refer :all]
[clojure.java.io :refer [resource]]
[me.raynes.fs :as fs]
[puppetlabs.ssl-utils.core :refer :all]))
(defn pubkey-sha1
"Gets the SHA-1 digest of the raw bytes of the provided publickey."
[pub-key]
{:pre [(public-key? pub-key)]
:post [(vector? %)
(every? integer? %)]}
(let [bytes (-> ^PublicKey
pub-key
.getEncoded
SubjectPublicKeyInfo/getInstance
.getPublicKeyData
.getBytes)]
(vec (.digest (MessageDigest/getInstance "SHA1") bytes))))
(defn open-ssl-file
[filepath]
(resource (str "puppetlabs/ssl_utils/examples/ssl/" filepath)))
(defn write-to-pem-stream
([object] (write-to-pem-stream object obj->pem!))
([object write-function]
(let [pem-stream (ByteArrayOutputStream.)]
(write-function object pem-stream)
(-> pem-stream
(.toByteArray)
(ByteArrayInputStream.)))))
(defmulti has-subject?
"Returns true if x has the subject identified by the x500-name string or `X500Name`.
Default implementations are provided for `X509Certificate` and `PKCS10CertificationRequest`."
(fn [x x500-name]
[(class x) (class x500-name)]))
(defmethod has-subject? [X509Certificate String]
[cert x500-name]
(= x500-name (-> ^X509Certificate cert .getSubjectX500Principal .getName)))
(defmethod has-subject? [X509Certificate X500Name]
[cert x500-name]
(has-subject? cert (str x500-name)))
(defmethod has-subject? [PKCS10CertificationRequest String]
[csr x500-name]
(= x500-name (-> csr .getSubject str)))
(defmethod has-subject? [PKCS10CertificationRequest X500Name]
[csr x500-name]
(= x500-name (.getSubject csr)))
(defmulti issued-by?
"Returns true if x was issued by the x500-name string or `X500Name`.
Default implementations are provided for `X509Certificate` and `X509CRL`."
(fn [_ x500-name]
(class x500-name)))
(defmethod issued-by? String
[x x500-name]
(= x500-name (-> x .getIssuerX500Principal .getName)))
(defmethod issued-by? X500Name
[x x500-name]
(issued-by? x (str x500-name)))
(defn generate-past-date []
(-> (DateTime/now)
(.minus (Period/days 1))
(.toDate)))
(defn generate-not-before-date []
(generate-past-date))
(defn generate-future-date []
(-> (DateTime/now)
(.plus (Period/years 5))
(.toDate)))
(defn generate-not-after-date []
(generate-future-date))
(defn str->bytes
"Turn a `String s` into `bytes[]`"
[^String s]
(bytes (byte-array (map (comp byte int) s))))
(defn generate-expired-crl
[issuer issuer-private-key issuer-public-key]
(SSLUtils/generateCRL issuer issuer-private-key issuer-public-key
(.toDate (DateTime/now))
(generate-past-date)
BigInteger/ZERO
nil))
(defn generate-not-yet-valid-crl
[issuer issuer-private-key issuer-public-key]
(SSLUtils/generateCRL issuer issuer-private-key issuer-public-key
(generate-future-date)
(generate-future-date)
BigInteger/ZERO
nil))
(defn generate-newer-crl
[issuer issuer-private-key issuer-public-key]
(SSLUtils/generateCRL issuer issuer-private-key issuer-public-key
(.toDate (DateTime/now))
(generate-future-date)
BigInteger/ONE
nil))
(defn generate-newest-crl
[issuer issuer-private-key issuer-public-key]
(SSLUtils/generateCRL issuer issuer-private-key issuer-public-key
(.toDate (DateTime/now))
(generate-future-date)
BigInteger/TEN
nil))
;; This does not contain delta CRL content, just the delta CRL indicator,
;; so should only be used for testing purposes.
(defn generate-delta-crl
[issuer issuer-private-key issuer-public-key]
(SSLUtils/generateCRL issuer issuer-private-key issuer-public-key
(.toDate (DateTime/now))
(generate-future-date)
BigInteger/ONE
[(javaize (delta-crl-indicator BigInteger/ZERO))]))
(defn create-truncated-subject-key-identifier
[key]
{:oid subject-key-identifier-oid
:critical false
:value key
:options {:truncate true}})
(defn create-truncated-authority-key-identifier
[key]
{:oid authority-key-identifier-oid
:critical false
:value {:public-key key
:serial-number nil
:issuer-dn nil
:cert nil}
:options {:truncate true}})
(defn swap-extension
[extensions extension]
(-> (remove #(= (:oid extension) (:oid %)) extensions)
(conj extension)))
(defn generate-crl-with-bad-signature
[issuer _ _]
(let [random-keys (generate-key-pair 2048)
public-key (get-public-key random-keys)
private-key (get-private-key random-keys)]
(SSLUtils/generateCRL issuer private-key public-key)))
(defn generate-multiple-crls
[issuer issuer-private-key issuer-public-key]
{:original (generate-crl issuer issuer-private-key issuer-public-key)
:new (generate-newer-crl issuer issuer-private-key issuer-public-key)
:newest (generate-newest-crl issuer issuer-private-key issuer-public-key)})
(defn generate-ca-cert
[issuer-name issuer-key-pair serial root?]
(let [subject-name (if root?
issuer-name
(cn (format "Intermediate CA %d" serial)))
key-pair (if root?
issuer-key-pair
(generate-key-pair 2048))
public-key (get-public-key key-pair)
not-before (generate-not-before-date)
not-after (generate-not-after-date)
cert (sign-certificate issuer-name (get-private-key issuer-key-pair)
serial not-before not-after subject-name public-key
(create-ca-extensions (get-public-key issuer-key-pair) public-key))]
[cert key-pair]))
(defn generate-cert-chain-with-crls
([number-of-certs]
(generate-cert-chain-with-crls number-of-certs
generate-crl
(generate-key-pair 2048)))
([number-of-certs generate-crl-fn]
(generate-cert-chain-with-crls number-of-certs
generate-crl-fn
(generate-key-pair 2048)))
([number-of-certs generate-crl-fn root-key-pair]
(let [root-public-key (get-public-key root-key-pair)
root-private-key (get-private-key root-key-pair)
root-name (cn "Root CA")
root-cert (first (generate-ca-cert root-name root-key-pair 666 true))
root-crl (generate-crl-fn (X500Principal. root-name)
root-private-key root-public-key)]
(loop [certs [root-cert]
crls [root-crl]
certs-to-generate (dec number-of-certs)
issuer root-cert
issuer-key-pair root-key-pair]
(if (< certs-to-generate 1)
[certs crls issuer-key-pair]
(let [[new-cert new-key-pair] (generate-ca-cert
(cn (get-cn-from-x509-certificate issuer))
issuer-key-pair
certs-to-generate
false)
new-private-key (get-private-key new-key-pair)
new-public-key (get-public-key new-key-pair)
new-crl (generate-crl-fn (.getSubjectX500Principal ^X509Certificate new-cert)
new-private-key new-public-key)]
(recur (cons new-cert certs)
(cons new-crl crls)
(dec certs-to-generate)
new-cert
new-key-pair)))))))
(defn generate-cert-chain-with-revoked-cert
[number-of-certs]
(when (< number-of-certs 2)
(throw (Exception. (format "Can't perform revocations on a %d-cert chain."
number-of-certs))))
(let [root-key-pair (generate-key-pair 2048)
[certs crls leaf-keys] (generate-cert-chain-with-crls number-of-certs
generate-crl
root-key-pair)
cert-to-revoke (nth certs (- number-of-certs 2))
crl-to-update (last crls)
updated-crl (revoke crl-to-update
(get-private-key root-key-pair)
(get-public-key root-key-pair)
(get-serial cert-to-revoke))]
[certs (-> crls drop-last (conj updated-crl) leaf-keys)]))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Writing test files
;; The following helpers can be used to create test fixtures via the repl.
;; To start the repl, run `lein repl`.
;; Within the repl, run the following (with your desired function and arguments):
;; ```
;; (require '[puppetlabs.ssl-utils.testutils :as t])
;; (t/write-valid-cert-chain-and-crls 3 "your-subpath")
;; ```
(def test-files-path "test-resources/puppetlabs/ssl_utils/examples/ssl")
(defn write-certs-and-crls
[certs crls test-subpath certs-filename crls-filename]
(let [dir-path (fs/file test-files-path test-subpath)
certs-path (fs/file dir-path certs-filename)
crls-path (fs/file dir-path crls-filename)]
(fs/mkdirs dir-path)
(objs->pem! certs certs-path)
(objs->pem! crls crls-path)))
(defn write-valid-cert-chain-and-crls
[number-of-certs test-subpath]
(let [certs-filename (str number-of-certs "-cert-chain.pem")
crls-filename (str number-of-certs "-crl-chain.pem")
[certs crls _] (generate-cert-chain-with-crls number-of-certs)]
(write-certs-and-crls certs crls test-subpath certs-filename crls-filename)))
(defn write-expired-crl
[test-subpath]
(let [cert-filename "cert-with-expired-crl.pem"
crl-filename "expired-crl.pem"
[cert expired-crl _] (generate-cert-chain-with-crls 1 generate-expired-crl)]
(write-certs-and-crls cert expired-crl test-subpath cert-filename crl-filename)))
(defn write-not-yet-valid-crl
[test-subpath]
(let [cert-filename "cert-with-not-valid-crl.pem"
crl-filename "not-yet-valid-crl.pem"
[cert crl _] (generate-cert-chain-with-crls 1 generate-not-yet-valid-crl)]
(write-certs-and-crls cert crl test-subpath cert-filename crl-filename)))
(defn write-crl-with-bad-sig
[test-subpath]
(let [cert-filename "cert-with-crl-bad-sig.pem"
crl-filename "crl-with-bad-signature.pem"
[cert bad-crl _] (generate-cert-chain-with-crls 1 generate-crl-with-bad-signature)]
(write-certs-and-crls cert bad-crl test-subpath cert-filename crl-filename)))
(defn write-cert-chain-with-revoked-cert
[number-of-certs test-subpath]
(let [certs-filename "cert-chain-with-revoked-cert.pem"
crls-filename "crl-chain-with-cert-revoked.pem"
[certs crls] (generate-cert-chain-with-revoked-cert number-of-certs)]
(write-certs-and-crls certs crls test-subpath certs-filename crls-filename)))
(defn write-bundle-for-manual-validation
[number-of-certs output-dir]
(let [[certs crls-with-updates leaf-keys] (generate-cert-chain-with-crls
number-of-certs
generate-multiple-crls)
original-crls (map :original crls-with-updates)
new-crls (map :new crls-with-updates)
newest-crls (map :newest crls-with-updates)]
(fs/mkdirs output-dir)
;; The file names `ca-bundle.pem`, `crls.pem`, and `puppet_ca_key.pem` are used
;; in the instructions for setting up an intermediate CA with an external root
;; (https://puppet.com/docs/puppet/latest/server/intermediate_ca.html#set-up-puppet-as-an-intermediate-ca-with-an-external-root),
;; which should allow for easily copy-pasting the example `import` command.
(objs->pem! certs (fs/file output-dir "ca-bundle.pem"))
(objs->pem! original-crls (fs/file output-dir "crls.pem"))
(objs->pem! new-crls (fs/file output-dir "new-crls.pem"))
(objs->pem! newest-crls (fs/file output-dir "newest-crls.pem"))
(key->pem! (get-private-key leaf-keys) (fs/file output-dir "puppet_ca_key.pem"))
(key->pem! (get-public-key leaf-keys) (fs/file output-dir "puppet_ca_pubkey.pem"))))
|
