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| | ;;; erc-sasl-tests.el --- Tests for erc-sasl. -*- lexical-binding:t -*-
;; Copyright (C) 2020-2022 Free Software Foundation, Inc.
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;;; Code:
(require 'ert-x)
(require 'erc-sasl)
(ert-deftest erc-sasl--mechanism-offered-p ()
(let ((erc-sasl--options '((mechanism . external))))
(should (erc-sasl--mechanism-offered-p "foo,external"))
(should (erc-sasl--mechanism-offered-p "external,bar"))
(should (erc-sasl--mechanism-offered-p "foo,external,bar"))
(should-not (erc-sasl--mechanism-offered-p "fooexternal"))
(should-not (erc-sasl--mechanism-offered-p "externalbar"))))
(ert-deftest erc-sasl--read-password ()
(ert-info ("Explicit erc-sasl-password")
(let ((erc-sasl--options '((password . "foo"))))
(should (string= (erc-sasl--read-password nil) "foo"))))
(ert-info ("Fallback to erc-session-password")
(let ((erc-session-password "bar")
(erc-networks--id (erc-networks--id-create nil)))
(should (string= (erc-sasl--read-password nil) "bar")))
(let ((erc-session-password "bar")
(erc-sasl--options '((user . "tester") (password)))
(erc-networks--id (erc-networks--id-create nil)))
(should (string= (erc-sasl--read-password nil) "bar"))))
(let* ((entries (list
"machine GNU/chat port 6697 user bob password spam"
"machine FSF.chat port 6697 user bob password sesame"
"machine MyHost port irc password 123"))
(netrc-file (make-temp-file "auth-source-test" nil nil
(mapconcat 'identity entries "\n")))
(auth-sources (list netrc-file))
(erc-session-server "irc.gnu.org")
(erc-session-port 6697)
;;
(erc-sasl-auth-source-function #'erc-auth-source-search)
erc-server-announced-name ; too early
auth-source-do-cache)
(unwind-protect
(ert-info ("Auth source")
(ert-info ("Symbol as password specifies machine")
(let ((erc-sasl--options '((user . "bob")
(password . FSF.chat)))
(erc-networks--id (make-erc-networks--id)))
(should (string= (erc-sasl--read-password nil) "sesame"))))
(ert-info ("Use session ID when password empty")
(let ((erc-sasl--options '((user . "bob") (password)))
(erc-networks--id (erc-networks--id-create 'GNU/chat)))
(should (string= (erc-sasl--read-password nil) "spam")))))
(delete-file netrc-file))
(ert-info ("Prompt when search fails and server password null")
(let ((erc-sasl-auth-source-function #'ignore))
(should (string= (ert-simulate-keys "baz\r"
(erc-sasl--read-password "pwd:"))
"baz"))))))
(ert-deftest erc-sasl-create-client--plain ()
(let* ((erc-session-password "password123")
(erc-server-current-nick "tester")
(erc-session-port 1667)
(erc-session-server "localhost")
(client (erc-sasl--create-client 'plain))
(result (sasl-next-step client nil)))
(should (equal (format "%S" [erc-sasl--plain-response
"\0tester\0password123"])
(format "%S" result)))
(should (string= (sasl-step-data result) "\0tester\0password123"))
(should-not (sasl-next-step client result)))
(should (equal (assoc-default "PLAIN" sasl-mechanism-alist) '(sasl-plain))))
(ert-deftest erc-sasl-create-client--external ()
(let* ((erc-server-current-nick "tester")
(client (erc-sasl--create-client 'external))
(result (sasl-next-step client nil)))
(should (equal (format "%S" [ignore nil]) (format "%S" result)))
(should-not (sasl-step-data result))
(should-not (sasl-next-step client result)))
(should-not (member "EXTERNAL" sasl-mechanisms))
(should-not (assoc-default "EXTERNAL" sasl-mechanism-alist)))
(ert-deftest erc-sasl-create-client--scram-sha-1 ()
(let* ((erc-server-current-nick "jilles")
(erc-session-password "sesame")
(erc-sasl--options '((authzid . "jilles")))
(mock-rvs (list "c5RqLCZy0L4fGkKAZ0hujFBs" ""))
(sasl-unique-id-function (lambda () (pop mock-rvs)))
(client (erc-sasl--create-client 'scram-sha-1))
(step (sasl-next-step client nil)))
(ert-info ("Client's initial request")
(let ((req "n,a=jilles,n=jilles,r=c5RqLCZy0L4fGkKAZ0hujFBs"))
(should (equal (format "%S"
`[erc-compat--sasl-scram-client-first-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's initial response")
(let ((resp (concat "r=c5RqLCZy0L4fGkKAZ0hujFBsXQoKcivqCw9iDZPSpb,"
"s=5mJO6d4rjCnsBU1X,"
"i=4096"))
(req (concat "c=bixhPWppbGxlcyw=,"
"r=c5RqLCZy0L4fGkKAZ0hujFBsXQoKcivqCw9iDZPSpb,"
"p=OVUhgPu8wEm2cDoVLfaHzVUYPWU=")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should (equal (format "%S"
`[erc-sasl--scram-sha-1-client-final-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's final message")
(let ((resp "v=ZWR23c9MJir0ZgfGf5jEtLOn6Ng="))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should-not (sasl-step-data step)))))
(should (eq sasl-unique-id-function #'sasl-unique-id-function)))
(ert-deftest erc-sasl-create-client--scram-sha-256 ()
(unless (featurep 'sasl-scram-sha256)
(ert-skip "Emacs lacks sasl-scram-sha256"))
(let* ((erc-server-current-nick "jilles")
(erc-session-password "sesame")
(erc-sasl--options '((authzid . "jilles")))
(mock-rvs (list "c5RqLCZy0L4fGkKAZ0hujFBs" ""))
(sasl-unique-id-function (lambda () (pop mock-rvs)))
(client (erc-sasl--create-client 'scram-sha-256))
(step (sasl-next-step client nil)))
(ert-info ("Client's initial request")
(let ((req "n,a=jilles,n=jilles,r=c5RqLCZy0L4fGkKAZ0hujFBs"))
(should (equal (format "%S"
`[erc-compat--sasl-scram-client-first-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's initial response")
(let ((resp (concat
"r=c5RqLCZy0L4fGkKAZ0hujFBse697140729d8445fb95ec94ceacb14b3,"
"s=MTk2M2VkMzM5ZmU0NDRiYmI0MzIyOGVhN2YwNzYwNmI=,"
"i=4096"))
(req (concat
"c=bixhPWppbGxlcyw=,"
"r=c5RqLCZy0L4fGkKAZ0hujFBse697140729d8445fb95ec94ceacb14b3,"
"p=1vDesVBzJmv0lX0Ae1kHFtdVHkC6j4gISKVqaR45HFg=")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should (equal (format "%S"
`[erc-sasl--scram-sha-256-client-final-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's final message")
(let ((resp "v=gUePTYSZN9xgcE06KSyKO9fUmSwH26qifoapXyEs75s="))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should-not (sasl-step-data step)))))
(should (eq sasl-unique-id-function #'sasl-unique-id-function)))
(ert-deftest erc-sasl-create-client--scram-sha-256--no-authzid ()
(unless (featurep 'sasl-scram-sha256)
(ert-skip "Emacs lacks sasl-scram-sha256"))
(let* ((erc-server-current-nick "jilles")
(erc-session-password "sesame")
(mock-rvs (list "c5RqLCZy0L4fGkKAZ0hujFBs" ""))
(sasl-unique-id-function (lambda () (pop mock-rvs)))
(client (erc-sasl--create-client 'scram-sha-256))
(step (sasl-next-step client nil)))
(ert-info ("Client's initial request")
(let ((req "n,,n=jilles,r=c5RqLCZy0L4fGkKAZ0hujFBs"))
(should (equal (format "%S"
`[erc-compat--sasl-scram-client-first-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's initial response")
(let ((resp (concat
"r=c5RqLCZy0L4fGkKAZ0hujFBsd4067f0afdb54c3dbd4fe645b84cae37,"
"s=ZTg1MmE1YmFhZGI1NDcyMjk3NzYwZmRjZDM3Y2I1OTM=,"
"i=4096"))
(req (concat
"c=biws,"
"r=c5RqLCZy0L4fGkKAZ0hujFBsd4067f0afdb54c3dbd4fe645b84cae37,"
"p=LP4sjJrjJKp5qTsARyZCppXpKLu4FMM284hNESPvGhI=")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should (equal (format "%S"
`[erc-sasl--scram-sha-256-client-final-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's final message")
(let ((resp "v=847WXfnmReGyE1qlq1And6R4bPBNROTZ7EMS/QrJtUM="))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should-not (sasl-step-data step)))))
(should (eq sasl-unique-id-function #'sasl-unique-id-function)))
(ert-deftest erc-sasl-create-client--scram-sha-512--no-authzid ()
(unless (featurep 'sasl-scram-sha256)
(ert-skip "Emacs lacks sasl-scram-sha512"))
(let* ((erc-server-current-nick "jilles")
(erc-session-password "sesame")
(mock-rvs (list "c5RqLCZy0L4fGkKAZ0hujFBs" ""))
(sasl-unique-id-function (lambda () (pop mock-rvs)))
(client (erc-sasl--create-client 'scram-sha-512))
(step (sasl-next-step client nil)))
(ert-info ("Client's initial request")
(let ((req "n,,n=jilles,r=c5RqLCZy0L4fGkKAZ0hujFBs"))
(should (equal (format "%S"
`[erc-compat--sasl-scram-client-first-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's initial response")
(let ((resp (concat
"r=c5RqLCZy0L4fGkKAZ0hujFBs54c592745ce14e559fcc3f27b15464f6,"
"s=YzMzOWZiY2U0YzcwNDA0M2I4ZGE2M2ZjOTBjODExZTM=,"
"i=4096"))
(req (concat
"c=biws,"
"r=c5RqLCZy0L4fGkKAZ0hujFBs54c592745ce14e559fcc3f27b15464f6,"
"p=vMBb9tKxFAfBtel087/GLbo4objAIYr1wM+mFv/jYLKXE"
"NUF0vynm81qQbywQE5ScqFFdAfwYMZq/lj4s0V1OA==")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should (equal (format
"%S" `[erc-sasl--scram-sha-512-client-final-message
,req])
(format "%S" step)))
(should (string= (sasl-step-data step) req))))
(ert-info ("Server's final message")
(let ((resp (concat "v=Va7NIvt8wCdhvxnv+bZriSxGoto6On5EVnRHO/ece8zs0"
"qpQassdqir1Zlwh3e3EmBq+kcSy+ClNCsbzBpXe/w==")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
(should-not (sasl-step-data step)))))
(should (eq sasl-unique-id-function #'sasl-unique-id-function)))
(defconst erc-sasl-tests-ecdsa-key-file "
-----BEGIN EC PARAMETERS-----
BggqhkjOPQMBBw==
-----END EC PARAMETERS-----
-----BEGIN EC PRIVATE KEY-----
MHcCAQEEIIJueQ3W2IrGbe9wKdOI75yGS7PYZSj6W4tg854hlsvmoAoGCCqGSM49
AwEHoUQDQgAEAZmaVhNSMmV5r8FXPvKuMnqDKyIA9pDHN5TNMfiF3mMeikGgK10W
IRX9cyi2wdYg9mUUYyh9GKdBCYHGUJAiCA==
-----END EC PRIVATE KEY-----
")
(ert-deftest erc-sasl-create-client-ecdsa ()
(unless (executable-find "openssl")
(ert-skip "System lacks openssl"))
(ert-with-temp-file keyfile
:prefix "ecdsa_key"
:suffix ".pem"
:text erc-sasl-tests-ecdsa-key-file
(let* ((erc-server-current-nick "jilles")
(erc-sasl--options `((password . ,keyfile)))
(client (erc-sasl--create-client 'ecdsa-nist256p-challenge))
(step (sasl-next-step client nil)))
(ert-info ("Client's initial request")
(should (equal (format "%S" [erc-sasl--ecdsa-first "jilles"])
(format "%S" step)))
(should (string= (sasl-step-data step) "jilles")))
(ert-info ("Server's initial response")
(let ((resp (concat "\0\1\2\3\4\5\6\7\10\11\12\13\14\15\16\17\20"
"\21\22\23\24\25\26\27\30\31\32\33\34\35\36\37")))
(sasl-step-set-data step resp)
(setq step (sasl-next-step client step))
;; FIXME this is dumb
(should (<= 68 (length (sasl-step-data step)) 72))))
(should-not (sasl-next-step client step)))))
;;; erc-sasl-tests.el ends here
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