If hardlinks are enabled, it would hardlink files from the underlay. That
was sorta annoying if you tried to edit by hand for some reason, so let's
not. Files that are hardlinked should be rare enough that a few extra stats
won't hurt.
This ensures that the same link is reached as is used on pages,
so browsers will know that the link on pages has been visited, and color it
appropriately.
The constructor can fail with a useless error message if module fail to
load. Work around this by evaling it, and checking for failures, and
printing CGI::Session->errstr to get a more useful message.
This is truely horribly disgusting. CGI::tmpFileName, in current perls, is
an undocumented function (which should be a clue..) that takes the original
filename of an uploaded attachment, and returns the name of the tempfile
that CGI has stored it in.
In old perls, though, CGI::tmpFileName does not take a filename. It takes
a key from the object's {'.tmpfiles'} hash. This key is something
crazy like '*Fh::fh00001group' -- apparently the stringification of a
filehandle object.
Just to add to the fun, tmpFileName doesn't take the key, it expects a
refernce to the key. Argh?!
But the fun doesn't stop there, because in perl 5.8, CGI.pm is also broken
in two other ways. The upload() method is supposed to return a filehandle
to the temp file. It doesn't. The param() method is supposed to return
a filehandle to the temp file, that stringifies to the original filename.
It returns just the original filename, no filehandle.
Combine all these bugs, and you end up with this disgusting commit. Since
I have no way to get the filehandle, I *need* to get the tempfile name.
If I had the filehandle, I could probably pass it into tmpFileName, and
it might strigify to the right key name. But I don't, so the only way to
determine the key is to grub through the .tmpfiles hash ourselves.
And finally, one the temp file name is discovered, a filehandle can finally
be obtained by (re)opening it.
I recommend that this commit be reverted when perl 5.8 is a mercifully
faded memory.
I'm really, really, really glad I'm actually being paid for working on
this right now!
* The editpage form now uses the raw page name, not the page title, in its
'page' cgi parameter. Using the title was ambiguous and made it
impossible to tell between some pages, like "foo/bar" and "foo__47__bar",
sometimes causing the wrong page to be edited.
* This change means that some edit links need to be updated.
Force a rebuild on upgrade to this version.
* Above change also allowed really fixing escaped slashes from the blogpost
form.
Joey Hess
Simon McVittie
Gabriel McManus