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openssl: defer erorr logging when no x509 root sources are not found

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Instead of logging an error when the `openssl` module is loaded, defer
a complaint until procedures that would depend on the configuration is
called. Otherwise, errors can get printed in programs that depend on
the `openssl` library but do not always need OpenSSL support at run
time.
This commit is contained in:
Matthew Flatt 2020-05-04 20:23:10 -06:00
parent 83f27f637b
commit 1bef5a6927
1 changed files with 15 additions and 6 deletions
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21
racket/collects/openssl/mzssl.rkt
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@ -407,16 +407,23 @@ TO DO:
;; Log error only if *no* cert source exists (eg, on Debian/Ubuntu, default
;; cert file does not exist).
(unless (or (ormap file-exists? cert-files) (ormap directory-exists? cert-dirs))
(log-openssl-error
"x509-root-sources: cert sources do not exist: ~s, ~s; ~a"
cert-file0 cert-dirs0
(format "override using ~a, ~a"
(X509_get_default_cert_file_env)
(X509_get_default_cert_dir_env))))
(set! complain-on-cert
(lambda ()
(log-openssl-error
"x509-root-sources: cert sources do not exist: ~s, ~s; ~a"
cert-file0 cert-dirs0
(format "override using ~a, ~a"
(X509_get_default_cert_file_env)
(X509_get_default_cert_dir_env))))))
(log-openssl-debug "using cert sources: ~s, ~s" cert-files cert-dirs)
(append cert-files (map (lambda (p) (list 'directory p)) cert-dirs))]
[else null]))
(define complain-on-cert void)
(define (maybe-complain-on-cert)
(complain-on-cert)
(set! complain-on-cert void))
(define ssl-default-verify-sources
(make-parameter
(case (system-type)
@ -845,6 +852,7 @@ TO DO:
[else (bad-source)]))
(define (ssl-load-default-verify-sources! ctx)
(maybe-complain-on-cert)
(for ([src (in-list (ssl-default-verify-sources))])
(ssl-load-verify-source! ctx src #:try? #t)))
@ -990,6 +998,7 @@ TO DO:
(define context-cache #f)
(define (ssl-secure-client-context)
(maybe-complain-on-cert)
(let ([locs (ssl-default-verify-sources)])
(define (reset)
(let* ([now (current-seconds)]