On Thu, 2010-01-21 at 15:21 +0100, André Warnier wrote: > Mirko Solic wrote: > > On Thu, 2010-01-21 at 11:30 +0100, André Warnier wrote: > > > Mirko, > just for info : there is a related other thread taking place at the same > time, entitled "Basic Authentication Failed with multibyte username".
I have read it. > > Basically, I am interested in those topics because I encounter them > myself often in our own web applications. > I don't know all the answers, but I know that it is confusing. > > As far as I can interpret : > > According to the HTTP 1.1 RFC 2616, HTTP header fields MAY contain *TEXT > portions representing character sets other than US-ASCII. > But then, such header field values MUST be encoded according to the > rules of RFC 2047. > RFC 2047 in turn, in "2. Syntax of encoded-words ", indicates that this > should be done using the form : > encoded-word = "=?" charset "?" encoding "?" encoded-text "?=" > for example : > > Header-name: =?iso-8859-1?B?some iso-8859-1 text, base-64 encoded?= > or > Header-name: =?utf-8?B?some unicode/utf-8 text, base-64 encoded?= > (I am not quite sure here of the "utf-8" part as the correct name for > the charset.) > > Now, I am not sure that if you pass a HTTP header, encoded as above, > from Apache to Tomcat, the Tomcat getHeader() call will properly decode > it, using the indicated charset. > > If not, you will have to do the decoding yourself, if you want to pass > non-ascii (or non-iso-8859-1) characters in those headers. > Admittedly, it is a pain; but there are still quite a few grey areas > like that in the WWW-related RFCs in what concerns character sets. > If you have to do this kind of encoding/decoding, I suggest to have a > look in MIME (email) libraries. Such kind of encoding/decoding is > regularly used in email headers. Save the original text (.eml) format > of an email, with a non-ascii subject line, for an example. How i understand i don't have control when environment variables on apache side are putted in http header and sent to tomcat side. This is done by mode_jk automatically. I would hate to put encoded values already in environment variables on apache side so mod_jk would transfer them corectly on tomcat side but then other web pages that uses this variables wouldn't work no more. Right way would be (for my understanding) that mod_jk would encode environment varibales according to the rules of RFC 2047. lp mirko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
