R: [phpxmlrpc-devel] proper data encoding in string value

[Gaetano G. <giu...@se...>]

A little while ago I posted to the list a proposal (well, some =
questions, rather than a patch, actually) for variable XML encoding.
In short: some people might need UTF-8 and some people might need =
iso-whatever.
Moreover, using default encoding of UTF-8 is not in accordance with =
RFC2616 (afaik), so we actually have a problem. (see posting dated =
25/9/02)

Instead of just reversing the $xmlrpc_defencoding var, a better solution =
would be to make it a property of the client (or message ?) class, so =
that it can be switched 'on the fly'.

On the other end of the tunnel, xmlrpc servers should be allowed to =
decide which encoding they accept. The best option would be of course if =
the server could accept more than one encoding, and maybe reply to =
messages using the same encoding as received, 'guessing' it by peering =
at 1-the HTTP headers, 2-the <?xml> tag.

I did not propose an implementation for the above because my =
understanding of the xml syntax is too little for point 2 above.


As for not transalting stuff inside <string> except for '<' and '&', you =
also have to make sure that you're 'translating' chars that are not =
valid in the chosen encoding.

One little note: php is quite limited in xml encodings supported because =
of the underlying xml library (expat).
Luckily the next version (php 5) will use by default XML-lib, wich is =
much more powerful/advanced in many ways.

Gaetano

> -----Messaggio originale-----
> Da: php...@li...
> [mailto:php...@li...]Per conto di maHo
> Inviato: domenica 8 giugno 2003 2:40
> A: php...@li...
> Oggetto: [phpxmlrpc-devel] proper data encoding in string value
>=20
>=20
> there is a problem in encoding string value to xmlrpcval.
>=20
> original code uses htmlentities, which converts chars>0x127
> to &someentity; format. this format doesn't stand well
> with php xml parser, and disaster is ready, if there is
> a must to transfer some letters, ie. from polish alphabet.
>=20
> solutions:
> 1)the xmlrpc spec says that only '<' and '&' characters
> need to be translated to entities.
> so strtr($body,array("<"=3D>"&lt;,"&"=3D>"&amp;")) instead of
> htmlentities($body) is better IMHO.
>=20
> 2)changing default encoding from "UTF-8" to
> "iso-8859-1" helps a lot. I don't know why, it's very strange, (as=20
> strange is fact,that php provides only iso8859-1 and utf8 encodings)
>   but with mentioned changes, you can transfer all data, even binary,
> as xmlrpc string.
>=20
> i've posted the proper patch at
>=20
> http://sourceforge.net/tracker/download.php?group_id=3D34455&ati
d=3D411302&file_id=3D52440&aid=3D750764


pozdrav

maHo
--=20
lukasz shift-2 mach.com.pl,http://www.lukasz.mach.com.pl=09
gg://1612670 jabber://maHo@jabberpl.org	jabber://maHo@jabber.org
icq://136281200 motto://"nie dziel skarbu p=F3ki smok zipie"




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