TWiki TinyMCE and Opera

Today I installed TWiki 4.2.4, which includes TinyMCE editor.
But in Opera 9.61 I only get the traditional editor - no TinyMCE in sight.
Tried accessing from Firefox and it worked fine.

So, I downloaded TinyMCE from http://tinymce.moxiecode.com/index.php, put it on my internal website and ran the examples from Opera - no problems - TinyMCE works fine in Opera.

Looked at the source code for the edit pages in Opera and Firefox and the TinyMCE content is only there in Firefox. TWiki must be deciding I can't run TinyMCE for some reason and providing different content to Opera than it provides to Firefox.

It turns out that in January 2008, Opera was added to a short list of browsers that are not compatible with the TinyCME plugin of TWiki.See http://develop.twiki.org/~twiki4/cgi-bin/view/Bugs/Item5116 for details. It seems TinyMCE in Opera corrupts data.

The TWiki TinyMCEPlugin is using version 2.1.2, but the current release is 3.2.1.1. This may have something to do with the problems with Opera. There are indications on the TinyMCEPlugin development page that upgrading is not trivial.

Apache 2.2 / mod_auth_kerb on FC6

There is a bug in krb5-libs-1.5-21.1.i386.rpm, the latest available for FC6 from http://download.fedora.redhat.com/pub/fedora/linux/core/updates/6/i386/, which affects mod_auth_kerb.

The bug manifests in the error log as:

[Sun Jul 01 06:37:54 2007] [error] [client 1.2.3.4] gss_accept_sec_context() failed: Unspecified GSS failure. Minor code may provide more information (Cannot allocate memory)

MIT has already fixed the bug (about the same time krb5-libs-1.5-21.1.i386.rpm was released), but I don't see a more recent rpm available for FC6.

The bug is in lib/gssapi/krb5/indicate_mechs.c. The if() has the condition negated, which is wrong. The function should be as follows:

OM_uint32
krb5_gss_indicate_mechs(minor_status, mech_set)
     OM_uint32 *minor_status;
     gss_OID_set *mech_set;
{
   *minor_status = 0;

   if (gssint_copy_oid_set(minor_status, gss_mech_set_krb5_both, mech_set)) {
         *mech_set     = GSS_C_NO_OID_SET;
         *minor_status = ENOMEM;
         return(GSS_S_FAILURE);
   }

   return(GSS_S_COMPLETE);
}
"./gssapi/krb5/indicate_mechs.c" line 44 of 44 --100%-- col 1

More here
I fixed it by installing the source RPM krb5-1.5-21.1.src.rpm, editing indicate_mechs.c, rebuilding the RPMs and installing them.

For those no more familiar with doing such things than I was, the following suggestions may help:

rpm -i krb5-1.5-21.1.src.rpm
cd /usr/src/redhat/SPECS
rpmbuild -bb krb5.spec
Check and confirm that the RPMS were built successfully
cd /usr/src/redhat/BUILD/krb5-1.5/src/lib/gssapi/krb5
vi indicate_mechs.c
Change the if() to read as above (i.e. remove the '!')
cd /usr/src/redhat/SPECS
rpmbuild -bc --short-circuit krb5.spec
cd /usr/src/redhat/RPMS
rpm -U --force krb5*

It would be better to make a patch and change the version number of the RPM, but I don't know enough to do that.

After this change, mod_auth_kerb worked fine!!

First Post

Welcome to my new blog.
Probably not very interesting, except maybe for friends and family.