[CenterIM-devel] gnutls support is ready

[Anibal Avelar]

Hi everybody again.

While wait for the patch I have ready a experimental version for
centerim with gnutls (effective) support in my personal debian
unstable repository [1]:

deb http://fixxxer.cc/debian unstable/
deb-src http://fixxxer.cc/debian unstable/

Regards.

[1] http://fixxxer.cc/blog-en/?page_id=13

On 6/12/07, Anibal Avelar <debianmx at gmail.com> wrote:
> Hi everybody.
>
> Because I saw centerim has problems to work with gnutls I made the
> definitive support to GNUTLS library. The normal way was to use
> openssl  instead gnutls.
> But at least into Debian, the openssl license is GPL non-compatible,
> for that is better to use gnutls support.
>
> Whom were affected?
>
>  + Jabber with SSL support (necessary to gTalk)
>  + Gadu Gadu with SSL support
>
> I proved with this:
>
> ./configure --with-ssl
>
> Installing  libgnutls-dev instead libssl-dev, Jabber/gTalk does not work.
>
> I check what was the problem and I found it.
>
> When you gives the --with-ssl parameter centerim to find for OpenSSL
> by default, it didn't find it, check for gnutls support. This is good.
>
> But the problem is:
>
> Inside connwrap/configure.ac and libgadu/configure.ac files aren't
> prepare to receive this parameters, for example in
> connwrap/configure.ac:
>
> if test -n "$with_ssl" -a x"$with_ssl" != xno; then
>     AC_DEFINE(HAVE_SSL)
>     if test -n "$with_openssl" -a x"$with_openssl" != xno; then
>         AC_DEFINE(HAVE_OPENSSL)
>         AC_CHECK_LIB(crypto, main, [
>             AC_CHECK_LIB(crypto, SSLeay_add_all_algorithms, [
>                 AC_DEFINE(HAVE_SSLEAY)
>             ])
>             ])
>   fi
> fi
>
> We don't have defined the HAVE_GNUTLS var, then when I want to use it
> inside connwrap/ files, it's not defined.
>
> The correct would be:
>
>
> if test -n "$with_ssl" -a x"$with_ssl" != xno; then
>     AC_DEFINE(HAVE_SSL)
>     if test -n "$with_openssl" -a x"$with_openssl" != xno; then
>         AC_DEFINE(HAVE_OPENSSL)
>         AC_CHECK_LIB(crypto, main, [
>             AC_CHECK_LIB(crypto, SSLeay_add_all_algorithms, [
>                 AC_DEFINE(HAVE_SSLEAY)
>             ])
>             ])
>     else
>          AC_MSG_RESULT([not found or disabled])
>          with_ssl="no"
>
>           AM_PATH_LIBGNUTLS_EXTRA(0.0.1, [
>           AC_CHECK_LIB(lzo, lzo1x_1_compress, [], [
>                             echo "lzo compression is required.";
>                             exit -1
>                             ] )
>                        CXXFLAGS="$CXXFLAGS $LIBGNUTLS_CFLAGS"
>                        LIBS="$LIBS $LIBGNUTLS_LIBS -lgnutls-extra"
>                        AC_DEFINE(HAVE_GNUTLS, 1, [use gnutls])
>           with_ssl="yes"
>           ac_configure_args="$ac_configure_args --with-ssl"
>           ])
>   fi
> fi
>
> Is strange that in the top directory on centerim has defined it, but
> not below (is exactly the same problem inside libgadu dir).
>
> I fixed both files (connwrap/configure.ac and libgadu/configure.ac)
> and after I did the porting to gnutls.
>
> Now, we have both supports without problems: Openssl and GNUTLS. Also
> are mutually excluded to avoid problems.
>
> To work you need:
>
> If you have OpenSSL
> ./configure --with-ssl
>
> If you have Gnutls
> ./configure --with-ssl --with-openssl=no
>
> This is because by default is --with-openssl=yes
>
> The second reason because I had to do this is because Julien Lemoine
> tried to use the backward compatiblity to openssl from gnutls using
> gnutls/openssl.h header, but it not work (I tried). Also if you want
> to use the gnutls backward compatiblity gnutls/openssl.h, you need to
> link the libgnutls-openssl.so library in addition to libgnutls.so.
>
> Now all work fine with both.
>
> I send the patch. Of course to apply the configure.ac, you need to do
> run automake command.
>
> I hope this patch would be included in the offcial centerim branch.
> With this I can build the official debian package, because I can't do
> with the Openssl support by the license problems mentioned above.
>
> Please, I hope your comments.
>
> Regards.
>
>
>
>
>
>
>
>
>
>
> --
> Anibal Avelar (FixXxeR) http://fixxxer.cc
> GPG: 83B64656 - C143 4AD8 B017 53FA B742  D6AA CEEA F9F3 83B6 4656
>
>


-- 
Anibal Avelar (FixXxeR) http://fixxxer.cc
GPG: 83B64656 - C143 4AD8 B017 53FA B742  D6AA CEEA F9F3 83B6 4656