Am 03.12.2024 um 20:26 schrieb Curtis:

On Tue, 3 Dec 2024 18:20:17 +0100, Sönke Ludwig wrote:

(...)

Thanks! The server I'm connecting to is using a Let's Encrypt cert so
I've updated my code to: 

settings.tlsContextSetup = (scope ctx) {
    ctx.useTrustedCertificateFile("/etc/ssl/certs/ISRG_Root_X1.pem");
};

and have left TLSPeerValidationMode alone since it it's a public
certificate.

Now I'm running into a D error where it's saying my void delegate
function can't be implicitly converted to void delegate nothrow: 

Error: cannot implicitly convert expression '__lambda5' of type 'void 
delegate(TLSContext ctx) @safe' to 'void delegate(TLSContext ctx) 
nothrow @safe'

I tried changing the signature to (ctx) nothrow {... and void <br>delegate() f(ctx) nothrow but the compiler complains about syntax errors.

Try wrapping the useTrustedCertificateFile call in a try-catch: 

settings.tlsContextSetup = (scope ctx) {
     try ctx.useTrustedCertificateFile("/etc/ssl/certs/
ISRG_Root_X1.pem");
     catch (Exception e) {
         import vibe.core.log : logException;
         logException(e, "Failed to load trusted certificate store");
     }
};

Looking at the API an implementation, I actually wonder why the callback
needs to be nothrow at all. It looks like it would actually make a lot
of sense to let it throw on error.