From nobody Tue Nov 8 01:14:32 2022 Return-Path: X-Original-To: httpapi@ietfa.amsl.com Delivered-To: httpapi@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 51234C1522B7 for ; Tue, 8 Nov 2022 01:14:31 -0800 (PST) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -7.107 X-Spam-Level: X-Spam-Status: No, score=-7.107 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H2=-0.001, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmx.de Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id T9YVcLSd8Vts for ; Tue, 8 Nov 2022 01:14:27 -0800 (PST) Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id EE6C8C1522B4 for ; Tue, 8 Nov 2022 01:14:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1667898865; bh=hupn8gVaO5u8gWXR3iAAkmqQRyLA/syz8FdUBPpgxEY=; h=X-UI-Sender-Class:Date:Subject:To:References:From:In-Reply-To; b=RA4fcILgGx7wUkCieT14RamjDUw3D7tG5ErejE8XKx70ubf+xe7Z/unZwU9vCbbar Z1mz9ggC4z/ZIj6ShLkyAR5utfObvu3DSOlXHS9USV1b9hrlQ08YKzdY7nLCQt4YtG aPYnn3yPo4fWckaf+zzjg6RQLw3XyGfEuBq4YN5xGwHk5l14jb65EVIK0083khm9FW SkGcC38aN1o8uIh2d4NSpSyX5yqP6RIw2qVWOJNybvEeIkQBVMskwnOcGnbeBboguo DxBk3GVd48nLviZeLsD0n6S7tZPFMP/yrJG+XiCe0zYOy+7KIBmRaYf+81FYHvDfJa +hEF099uWrqTQ== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from [192.168.178.20] ([91.61.56.137]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MFsZ3-1omYz00F03-00HPJq for ; Tue, 08 Nov 2022 10:14:25 +0100 Message-ID: Date: Tue, 8 Nov 2022 10:14:24 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 Content-Language: en-US To: httpapi@ietf.org References: <166627224606.10641.5749459667185024591@ietfa.amsl.com> From: Julian Reschke In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:aSriNoMPp61UdIuz8RS05GULBtnNQ5pPqP52htgopsVUHywN+kf qwrlhXdXVDQk3uoJyL5Pnwe/Z7Ur9fOJphx75E8G27+PYu4Lyx7m3rwWrwlbVjLGShe3Nzx y0sIuMIelVdpjUYVEy99mqnGbn4/LLaWEb6uOQy471eJWveseU0rY67+Upvu6ewQpOAfHd9 crSq70KAR0kZPdWYrC9Mw== UI-OutboundReport: notjunk:1;M01:P0:KcXtndnbWB0=;CGG7P3DitQY8QD7fz+++BammwrK c8bsjNVf7n+mstNojvBICplUC2ZPyKR5gIgTz3NtbPC3UxhThV+FIYeyR9XbAD33gofkZZBQk KycZOMecJIfkZOyHC86Or/E3RwbXvLG5+Tgd/QGK5wLKBtis25mnstm9sp0G8DXWiM2QmYOer JiK6wbnY5r7edx7lmGgw91IUUT57HVIlUL+b7WygvaHEAX0R+db0rKWTEZkTXQnxItdu0we9z yczgPbgvLSw6mn+J8tYFkEuhAbCIdC/pKIqfeoqwbMynIm8LIXc2VhWoYbFRFziBaMNPFKCJ/ cYKTAWIrfLLXFLGDPB93oTbdgeOW6cFc60XyznGdOWmAWTXYeVw6tu+a6DWj/AeGMGbQj7c7H SPdjNA0R/qR6sRPZ/26v/gHta+VsIQP4TqGS5cX1AKGEAeSv9QNmLSCTXqXi+er1YTAzvrGCU QHsEsAeuvqWMn8GHhbe962UJRpMUEh3PjdfIOW+jGVHgJWr9qHEASJ00IshQ0A+o83nxgXI/K BI486Oz5nb8DBe50dqSa8ZJHWzA33N5ifoy6yiLzqrgb9S7jn0/h//XETVDmdvrpZ8sDlIHwr mksLseHQQkvH78KEQxOwqz+PUgQsEvKJvbJOlnXyMtFfROIxVEPa7IjexFc3syvUTLCfDAAfF d9hoPZa38ZSXPuwEb6OVj/AUehcKpS/iA9P6Mw8ZYfgUrmBYWdl5q+fRq8TusWqVkxkKIgGbq Z1Fm9HNyljZHGNP2uKsSB/nDStWzPJusmUZTt/PY3j1isWv/AnbhNTe5evi5PNqVv/M6Tz7/C Qi3SNFFjZF9h4LzRtJzFP288XmQIqlqNOqYluWS4c+rgdA0AKLM4DgERG4ButpwX1xO43tAj9 nWq/OmwE+C1UvbpkW+CkVg5dxwT2Ce96WL3bCXveL8mnpxfXqSCP7k7wLtaFivxhrETZ+dYS+ KOxudQ== Archived-At: Subject: Re: [httpapi] Last Call: (Problem Details for HTTP APIs) to Proposed Standard X-BeenThere: httpapi@ietf.org X-Mailman-Version: 2.1.39 Precedence: list List-Id: Building Blocks for HTTP APIs List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Nov 2022 09:14:31 -0000 On 07.11.2022 14:19, Ben Bucksch wrote: > ... > 4. Problem: HTTP header field and localization > > The spec states: `The title and detail values MUST NOT be serialized in > the Problem field if they contain characters that are not allowed by > String; see {{Section 3.3.3 of STRUCTURED-FIELDS}}. Practically, this > has the effect of limiting them to ASCII strings.` > I understand that the limitation to ASCII is imposed by prior existing > specs. However, mandating error strings to be in English (which is what > ASCII means in practice) is not very helpful for the purposes of this > specification. > Importance: Errors strings need to be helpful for the user and allow > them to correct the problem. If they are in a language that the user > does not understand, they are unlikely to be helpful. This in turn > leaves the end user frustrated. Messages that are potentially important > for the end user MUST be translated into the user's language. I share that concern. Unfortunately, that is a shortcoming of the SF synta= x. > If it is not reasonably possible to convey in the HTTP header field, I > would recommend to remove this transmission method entirely. That. Or... > Alternatively, you could specify an escaping mechanism which allows for > escaping of Unicode characters to be expressed with ASCII, e.g. a JSON > string (RFC 4627 Point 2.5, Paragr. 2, "\u005C"). That would be incompatible with the SF syntax. But we could state that strings containing non-ASCII characters will need to be sent as UTF-8 byte sequence (sf-binary). Ugly, but would at least allow transmission. > ... Best regards, Julian