Uploading pics to ldap through webapp

ksublondie has asked for the wisdom of the Perl Monks concerning the following question:

Hi monks!

I have written a web app that I want to be able to upload pics into ldap. Gif's work just fine, but jpeg's aren't. Apache log says: "gd-jpeg: JPEG library reports unrecoverable error: Not a JPEG file: starts with 0x47 0x3a". I used File::Type to test the data type and for both gif's & jpeg's, it returns "application/octet-stream". I'm assuming the gif library can handle "application/octet-stream", but the jpeg lib can't??? Is there a way I can get this to work for both jpegs & gif's or am I going with the wrong approach?

sub uploadPhoto{
        my $self = shift;
        my $q = $self->query;
        my $admin=($self->session->param('membership') =~ /$Intranet::
+Web::CONFIG{securityldapsuper}/);
        my $jpegimg='';
        my $photo = $q->upload('photo');
        my $dn=$q->param('dn');
        if($photo && $admin && $dn){
                binmode($photo);
                my $ft = File::Type->new();
#                return "type=".$ft->checktype_contents($photo); #used
+ for testing
                my $image = GD::Image->newFromGif($photo);
                unless($image){$image = GD::Image->newFromJpegData($ph
+oto);#tried this and newFromJpeg with the same result
                unless($image){return "Not a valid gif or jpeg file.";
+}}
                $jpegimg=$image->jpeg();
                undef $image;
                unless($jpegimg){return "Problem uploading image.";}
                my $ldap=Net::LDAP->new($Intranet::Web::CONFIG{ldaphos
+t}) or die "error connecting to LDAP $Intranet::Web::CONFIG{ldaphost}
+: $@\n";
                my $mesg=$ldap->bind($Intranet::Web::CONFIG{ldapuser},
+ password=>$Intranet::Web::CONFIG{ldappassword}) or die "error bindin
+g: $@\n";

                if($jpegimg){
                        my $mesg1=$ldap->modify($dn,replace=>{jpegPhot
+o=> $jpegimg,thumbnailPhoto=>$jpegimg, });
                        $mesg1->code && die $mesg1->error;
                }
                $ldap->unbind;
        }
        return "Photo uploaded".(length($jpegimg));
}
[download]

and my html:

<form name='photoForm' action='[% userbase %]/ldap.pl' enctype="multip
+art/form-data" method='post' id='photoForm'>
      <input type="hidden" name="rm" value="getDetailUser">
      <input type="hidden" name="upload" value="0">
      <input type="hidden" name="dn" value="[% user.dn %]">
      <input type="file" name='photo'> <input type="button" value='Upl
+oad' onclick='this.form.upload.value=1;this.form.submit();'>
</form>
[download]

Comment on Uploading pics to ldap through webapp Select or Download Code

Replies are listed 'Best First'.
Re: Uploading pics to ldap through webapp by ramlight (Friar) on May 29, 2009 at 17:10 UTC
Are you sure that the jpeg that you are sending really is a jpeg? Jpegs start with the characters "JFIF" while Gifs start with the characters "GIF". Your error message suggests that your jpeg starts with "G:" (0x47 0x3a)	[reply]
Re^2: Uploading pics to ldap through webapp by ksublondie (Friar) on May 29, 2009 at 18:58 UTC
I finally got it to work with just GD::Image->new($photo). I don't know why I didn't try that to begin with :-)	[reply]
Re^2: Uploading pics to ldap through webapp by ksublondie (Friar) on May 29, 2009 at 18:34 UTC
I looked at the data and it sure enough starts with 'JFIF'. Of course I'm able to view the jpgs in any graphic editor that I tried. I even tried to 'save as...' another jpg in case the files were corrupted. I have tried dozens of jpgs all with the same result. None have worked so I doubt it's a problem with the files. That's interesting that the 'starts with' translates into 'G:'. That is the drive that I'm pulling the images from and if I try pics from my H drive, the error changes to 0x48. So apparently, $q->upload('photo') returns the filename. So why does newFromGif() return an image, but not newFromJpeg() when the documentation describes them as similar functions?	[reply]


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