I resorted to the less intrusive option of simply using OC-Chunked (like in the mobile clients) instead of OC_CHUNKED. Case closed, noone was hurt, sorry for the noise.
Am 03.06.2013 um 18:59 schrieb Daniel Molkentin: > Am 03.06.2013 um 11:51 schrieb Klaas Freitag: > >> Problems happen if there are proxies or whatever gangsters on the way >> between client and server that filter out these headers without further >> notice. Than the server has no chance to detect that chunked upload is in >> progress. >> > > I found the reason: nginx (natively and when used as a reverse proxy, > potentially also IIS, would need more investigation) do not deal properly > with headers using underscores by default. The reason is that when > transforming this to CGI variables, all underscores are dashes converted into > underscores, i.e. > > OC_FOO_BAR and OC-foo-bar > > are both represented as HTTP_OC_FOO_BAR in the server environment (i.e. PHP's > _SERVER map). Yes, header fields are also case insensitive. > >> [1] https://github.com/owncloud/core/wiki/spec:-big-file-chunking > > > I propose do deprecate OC_CHUNKING, and introduce org.owncloud.chunked: 1 (as > per RFC6648, such notation is recommended for headers not subject to > standardization efforts and superseeds the X- vendor prefix). We will keep > sendind OC_CHUNKING in the client and accept it in the server implementation. > For existing setups, I will also amend the server documentation for nginx to > point out this trap (set > http://wiki.nginx.org/Pitfalls#Missing_.28disappearing.29_HTTP_headers, make > sure to set the variable in the default server{}'s scope when using virtual > hosts !) > > For maximum data safety, we have now fixed csync to not lose data if the > header is missing (only an issue to 1.3.0 beta testers). > > Cheers, > Daniel > > -- > www.owncloud.com - Your Data, Your Cloud, Your Way! > > ownCloud GmbH, GF: Markus Rex, Holger Dyroff > Schloßäckerstrasse 26a, 90443 Nürnberg, HRB 28050 (AG Nürnberg) > > _______________________________________________ > Owncloud mailing list > [email protected] > https://mail.kde.org/mailman/listinfo/owncloud -- www.owncloud.com - Your Data, Your Cloud, Your Way! ownCloud GmbH, GF: Markus Rex, Holger Dyroff Schloßäckerstrasse 26a, 90443 Nürnberg, HRB 28050 (AG Nürnberg)
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