Attach a file with multibyte names (such as 中文.jpg) as listed in this screenshot:

This produces the following error

Use of uninitialized value in hash element at (eval 98) line 3.
 at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 84
   TWiki::UI::__ANON__('Use of uninitialized value in hash element at (eval 98) line 3.\x{a}') called at (eval 98) line 3
   CGI::tmpFileName('CGI=HASH(0x8c84e3c)', '\x{ff}\x{d8}\x{ff}\x{e0}\x{0}\x{10}JFIF\x{0}\x{1}\x{1}\x{1}\x{0}`\x{0}`\x{0}\x{0}\x{ff}\x{db}\x{0}C\x{0}\x{8}\x{6}\x{6}\x{7}\x{6}\x{5}\x{8}\x{7}\x{7}\x{7}\x{9}\x{9}\x{8}\x{a}\x{c}\x{14}\x{d}\x{c}\x{b}\x{b}\x{c}\x{19}\x{12}\x{13}\x{f}\x{14}\x{1d}\x{1a}\x{1f}\x{1e}\x{1d}\x{1a}\x{1c}\x{1c} $...') called at /home/twiki4/twikisvn/lib/TWiki/UI/Upload.pm line 193
   TWiki::UI::Upload::upload('TWiki=HASH(0x8c9b7f0)') called at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 159
   TWiki::UI::__ANON__() called at /home/twiki4/twikisvn/lib/CPAN/lib//Error.pm line 379
   eval {...} called at /home/twiki4/twikisvn/lib/CPAN/lib//Error.pm line 371
   Error::subs::try('CODE(0x8c84d40)', 'HASH(0xb7b77d98)') called at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 197
   TWiki::UI::run('CODE(0x8e80194)') called

Reported by Dai Luogeng. I could reproduce it here in the LitterTray? web. Due to chicken and egg problem I can't attach the file here for others to reproduce the issue.

-- TWiki:Main/PeterThoeny - 14 Dec 2007

If it is possible to zip the file into a non-multibyte filename that might be a workaround for the upload.

-- TWiki:Main.SteffenPoulsen - 15 Dec 2007

That is the same stack dump as for Item5130? ; it may be nothing to do with multibyte.....

CC

I fixed Item5130? ; it may or may not have cured this issue. Peter, since you can reproduce this problem, could you check please?

CC

I just tried it here on this topic. No luck:

Use of uninitialized value in hash element at (eval 98) line 3.
 at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 84
   TWiki::UI::__ANON__('Use of uninitialized value in hash element at (eval 98) line 3.\x{a}') called at (eval 98) line 3
   CGI::tmpFileName('CGI=HASH(0x8c28e3c)', '\x{ff}\x{d8}\x{ff}\x{e0}\x{0}\x{10}JFIF\x{0}\x{1}\x{1}\x{1}\x{0}`\x{0}`\x{0}\x{0}\x{ff}\x{db}\x{0}C\x{0}\x{8}\x{6}\x{6}\x{7}\x{6}\x{5}\x{8}\x{7}\x{7}\x{7}\x{9}\x{9}\x{8}\x{a}\x{c}\x{14}\x{d}\x{c}\x{b}\x{b}\x{c}\x{19}\x{12}\x{13}\x{f}\x{14}\x{1d}\x{1a}\x{1f}\x{1e}\x{1d}\x{1a}\x{1c}\x{1c} $...') called at /home/twiki4/twikisvn/lib/TWiki/UI/Upload.pm line 193
   TWiki::UI::Upload::upload('TWiki=HASH(0x8c3f7a0)') called at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 159
   TWiki::UI::__ANON__() called at /home/twiki4/twikisvn/lib/CPAN/lib//Error.pm line 379
   eval {...} called at /home/twiki4/twikisvn/lib/CPAN/lib//Error.pm line 371
   Error::subs::try('CODE(0x8c28d40)', 'HASH(0xb7ad4110)') called at /home/twiki4/twikisvn/lib/TWiki/UI.pm line 197
   TWiki::UI::run('CODE(0x8e240dc)') called

-- TWiki:Main.PeterThoeny - 15 Dec 2007

erm, that shouldn't be possible. I put a try..catch around the call to tmpFileName, so the exception should have been caught. Therefore the code you tried it on was not the code I checked in.

Later: probably due to my doing other things on d.t.o, the svn update had failed after my checkin so you were testing the wrong code. Note that I didn't fix it. The multibyte filename won't work (looks like it's a limitation in CGI) but at least it shouldn't crash.

Yet another UTF-8 lmitation

CC

Topic was corrupted due to UTF8 problems. Restored from old rev. Kenneth, in answer to your question my fix was checked in and merged to 04x02 in Item5130? . However it is just a patch over the symptom. The real problem has not been fixed yet.