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doctor: rewrite TLS heuristics

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Fixes "peculiar error" in #175, #285, #288
This commit is contained in:
Henrik Lissner 2017-12-20 19:52:06 -05:00
parent bd1a4e31f6
commit c3c5de93c7
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GPG key ID: 5F6C0EA160557395
1 changed files with 32 additions and 45 deletions
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77
bin/doom-doctor
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@ -20,9 +20,10 @@
(defvar doom-errors 0)
(defmacro check! (cond &rest body)
(declare (indent defun))
`(when ,cond
,@body
(setq doom-errors (1+ doom-errors))))
`(let ((it ,cond))
(when it
,@body
(setq doom-errors (1+ doom-errors)))))
(defun indented (spc msg)
(declare (indent defun))
@ -57,17 +58,6 @@
"\n")))
(buffer-string)))
(defmacro wait-for! (var if-body &optional else-body)
(declare (indent defun))
`(let ((i 0))
(while (and (not ,var)
(< i 5))
(sleep-for 1)
(setq i (1+ i)))
(if ,var
,if-body
,else-body)))
(defun color (code msg &rest args)
(format "\e[%dm%s\e[%dm" code (apply #'format msg args) 0))
@ -211,43 +201,40 @@
" brew tap d12frosted/emacs-plus"
" brew install emacs-plus"))))
((not (fboundp 'url-retrieve-synchronously))
(error! "Can't find url-retrieve-synchronously function. Are you running Emacs 24+?"))
((or (executable-find "gnutls-cli")
(executable-find "openssl"))
(let ((tls-checktrust t)
(gnutls-verify-error t))
(dolist (url '("https://elpa.gnu.org"
"https://melpa.org"))
(condition-case-unless-debug ex
(let (result)
(let ((inhibit-message t))
(url-retrieve url (lambda (status &rest _) (setq result status))))
(wait-for! result
(when (getenv "DEBUG")
(success! "Verified %s" (nth 2 (split-string url "/"))))
(signal 'timed-out url)))
('timed-out
(error! "Timed out trying to contact %s" ex))
('error
(check! t
(error! "Rejected %s" url)
(explain! (pp-to-string ex))))))
(dolist (url '("https://elpa.gnu.org" "https://melpa.org"))
(check! (condition-case-unless-debug e
(if (let ((inhibit-message t)) (url-retrieve-synchronously url))
(ignore (success! "Validated %s" url))
'empty)
('timed-out 'timeout)
('error e))
(pcase it
(`empty (error! "Couldn't reach %s" url))
(`timeout (error! "Timed out trying to contact %s" ex))
(_
(error! "Failed to validate %s" url)
(when (getenv "DEBUG")
(explain! (pp-to-string it)))))))
(dolist (url '("https://self-signed.badssl.com"
"https://wrong.host.badssl.com/"))
(condition-case-unless-debug ex
(let (result)
(let ((inhibit-message t))
(url-retrieve url (lambda (status &rest _) (setq result status))))
(wait-for! result
(check! t
(warn! "Verified %s (this shouldn't happen!)" (nth 2 (split-string url "/")))
(explain! (pp-to-string result)))
(signal 'timed-out url)))
('timed-out
(error! "Timed out trying to contact %s" ex))
('error
(when (getenv "DEBUG")
(success! "Rejected %s (a good thing!)" url)
(explain! (pp-to-string ex))))))))
(check! (condition-case-unless-debug e
(if (let ((inhibit-message t)) (url-retrieve-synchronously url))
t
'empty)
('timed-out 'timeout)
('error (ignore (success! "Successfully rejected %s" url))))
(pcase it
(`empty (error! "Couldn't reach %s" url))
(`timeout (error! "Timed out trying to contact %s" ex))
(_
(error! "Validated %s (this shouldn't happen!)" url)))))))
(t
(error! "Nope!")))