DKIM_Verifier.AuthVerifier Parsing error

[jonathan00]

Hi,

got another error:
Zeitstempel: 30.09.2015 22:57:46
Fehler: 2015-09-30 22:57:46 DKIM_Verifier.AuthVerifier ERROR Error: Parsing error (resource://dkim_verifier/ARHParser.jsm:249) JS Stack trace: match@ARHParser.jsm:249:1 < parseResinfo@ARHParser.jsm:186:14 < _ARHParser_parse@ARHParser.jsm:161:21 < getARHResult@AuthVerifier.jsm:161:10 < _authVerifier_verify/promise<@AuthVerifier.jsm:103:17

Quelldatei: resource://gre/modules/Log.jsm
Zeile: 749

Header:
Authentication-Results: mail.xxx.de; dkim=pass
reason="1024-bit key; unprotected key"
header.d=facebookmail.com header.i=@facebookmail.com
header.b=cwU1/dak; dkim-atps=neutral
X-Spam-Level:
X-Spam-Status: No, score=-2.3 required=6.3 tests=BAYES_00,DKIM_SIGNED,
DKIM_VALID,DKIM_VALID_AU,DKIM_VERIFIED,HTML_MESSAGE,RDNS_DYNAMIC,
UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=ham version=3.3.2
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=facebookmail.com;
s=s1024-2013-q3; t=1443646501;
bh=tjTPk1/T+XuaDGifjLmJBTlrKSnLTtxkkAU7akYW3vU=;
h=Date:To:Subject:From:MIME-Version:Content-Type;
b=cwU1/dak/uH82oM3fkl5glV7IHScKtstQ3VA8V5IDHLLZtJi7d/4mVtfbP5bHk+aA
FO5e60by430wloGiuo3QslSyr/pe/sR82RbkQtjdxEUWRAj+go9lVXN8wncm8BCqqc
pdL8DkGU0X1KIOfpl9HaPyP+CttqReZEc0n6N+8g=

[jonathan00]

hm, i updated to opendkim from 2.6.8 to 2.8.3

before, the header looked like (new line before 'dkim=pass'):

Authentication-Results: mail.xxx.de;
dkim=pass (1024-bit key; insecure) header.d=facebookmail.com header.i=@facebookmail.com header.b=T6YSrGy1;
dkim-atps=neutral

[lieser]

Thanks again for reporting. I looked into it, and this time it seems not to be a bug in the add-on as the Authentication-Results header has an invalid syntax.

The problem is the / in header.b=cwU1/dak, which is not allowed at the right side of the equal sign unless in a quoted-string.

I could add an option to ignore this if needed. But i would prefer if this gets fixed in opendkim.

Here is the exact syntax of that is allowed at the right side of the equal sign (pvalue), in case you are interested:

RFC 7601 Section 2.2:

     pvalue = [CFWS] ( value / [ [ local-part ] "@" ] domain-name )
              [CFWS]
            ; the value extracted from the message property defined
            ; by the "ptype.property" construction

RFC 2045 Section 5.1:

     value := token / quoted-string

     token := 1*<any (US-ASCII) CHAR except SPACE, CTLs,
                 or tspecials>

     tspecials :=  "(" / ")" / "<" / ">" / "@" /
                   "," / ";" / ":" / "\" / <">
                   "/" / "[" / "]" / "?" / "="
                   ; Must be in quoted-string,
                   ; to use within parameter values

[lieser]

I have opened a bug for this for opendkim

[lieser]

Will be fixed in the next version of opendkim (which should be 2.11.0).

[lieser]

In case this is still an issue for you: The new pre release v2.0.0pre4 has now an advanced option for relaxed parsing of the ARH.