According to the docs, $ar provides the realm from the “Authorization” or “Proxy-Authorization” headers. Not from the ”Proxy-Authenticate” header, which is what you have.
https://www.opensips.org/Documentation/Script-CoreVar-3-1#toc6 Ben Newlin From: Users <[email protected]> Date: Thursday, September 24, 2020 at 9:31 PM To: OpenSIPS users mailling list <[email protected]> Subject: [OpenSIPS-Users] learning the realm from authentication challenges I'm trying to recover the realm of an auth challenge to OpenSIPS so I can respond to it with the uac_auth() function, and that requires knowing the realm. The docs say that $ar<https://www.opensips.org/Documentation/Script-CoreVar-3-1#toc6> should provide that, perhaps written like $(<reply>ar) to get it in the right context. I'm having some trouble getting the data. failure_route[relay_failure] { ... if (t_check_status("407")) { xlog("L_NOTICE", "[1] Proxy-Authenticate: $(<reply>hdr(Proxy-Authenticate))\n"); xlog("L_NOTICE", "[2] Auth Realm: $(<reply>ar)\n"); xlog("L_NOTICE", "[3] Auth Realm: $ar\n"); } ... } The logs show: /usr/sbin/opensips[33044]: [1] Proxy-Authenticate: Digest realm="asterisk", nonce="5f6d42140000936ad820dbcd452e6bcd145777e458dd46dd", qop="auth" /usr/sbin/opensips[33044]: [2] Auth Realm reply: <null> /usr/sbin/opensips[33044]: [3] Auth Realm: <null> Is it possible to get the realm? Is it possible to build a response with uac_auth() for an arbitrary authentication challenge? This is on 3.1.0~20200923~88f89e941. - Jeff
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