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| author | Ludovic Courtès <ludo@gnu.org> | 2017-05-02 21:43:18 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2017-05-02 23:41:13 +0200 |
| commit | 7b9ac883ea62a816afbfa747c1377dc273c15c20 (patch) | |
| tree | 5be9a92cb8cbede3db0ada6d337161f470e5bfda /guix | |
| parent | 756be979cb4adef6caf61b2e8eb2391f2b8c6ea7 (diff) | |
download: Continue handshake upon TLS warning alerts.
This allows us to download from site such as
<https://fusionforge.int-evry.fr> where the server does not recognize
the server name passed via the 'server_name' extension.
* guix/build/download.scm (tls-wrap): Catch 'gnutls-error' around
'handshake'. Upon ERROR/WARNING-ALERT-RECEIVED, print a message and
call 'handshake'.
Diffstat (limited to 'guix')
| -rw-r--r-- | guix/build/download.scm | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/guix/build/download.scm b/guix/build/download.scm index 67a8952599..ce4708a873 100644 --- a/guix/build/download.scm +++ b/guix/build/download.scm @@ -396,7 +396,21 @@ host name without trailing dot." ;;(set-log-level! 10) ;;(set-log-procedure! log) - (handshake session) + (catch 'gnutls-error + (lambda () + (handshake session)) + (lambda (key err proc . rest) + (cond ((eq? err error/warning-alert-received) + ;; Like Wget, do no stop upon non-fatal alerts such as + ;; 'alert-description/unrecognized-name'. + (format (current-error-port) + "warning: TLS warning alert received: ~a~%" + (alert-description->string (alert-get session))) + (handshake session)) + (else + ;; XXX: We'd use 'gnutls_error_is_fatal' but (gnutls) doesn't + ;; provide a binding for this. + (apply throw key err proc rest))))) ;; Verify the server's certificate if needed. (when verify-certificate? |