in reply to Qestion about GD::SecurityImage

It seems I miss some mysql stuff in order to run this demo script. Any idea?

Um, resolve the error? You know, read the instructions, do what they say .... http://cpansearch.perl.org/src/BURAK/GD-SecurityImage-1.70/eg/demo.pl

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Re^2: Qestion about GD::SecurityImage
by sman (Beadle) on Jan 29, 2010 at 10:28 UTC
    Thanks for your reply. I follow the instruction and run the demo.pl as a CGI program successfully except the image does not show up (only see its alt string). Then I try this GD test code : 
    use GD;

# create a new image
$im = new GD::Image( 100, 100 );

# allocate some colors
$white = $im->colorAllocate( 255, 255, 255 );
$black = $im->colorAllocate( 0,   0,   0 );
$red   = $im->colorAllocate( 255, 0,   0 );
$blue  = $im->colorAllocate( 0,   0,   255 );

# make the background transparent and interlaced
$im->transparent($white);
$im->interlaced('true');

# Put a black frame around the picture
$im->rectangle( 0, 0, 99, 99, $black );

# Draw a blue oval
$im->arc( 50, 50, 95, 75, 0, 360, $blue );

# And fill it with red
$im->fill( 50, 50, $red );

# make sure we are writing to a binary stream
binmode STDOUT;

# Convert the image to PNG and print it on standard output
print $im->jpeg;

    [download]
    And then I got a error message like this: 
    [cmo@fedora ~]$ perl gdtest.pl > test.jpeg
Can't locate object method "jpeg" via package "GD::Image" at gdtest.pl
+ line 29.

    [download]
    line 29 is "print $im->jpeg;". GD::Image is installed successfully but Why this error happen?

    Thanks again.
[reply]
[d/l]
[select]

      Did you install the JPEG library prior to installing as described in the README?

[reply]
        Hi, I already installed jpegsrc.v6b.tar.gz like the following but still see the image's alt 'Security Image' only. Is there anywhere else I can check? 
        [abc@fedora jpeg-6b]$ sudo make install
/usr/bin/install -c cjpeg /usr/local/bin/cjpeg
/usr/bin/install -c djpeg /usr/local/bin/djpeg
/usr/bin/install -c jpegtran /usr/local/bin/jpegtran
/usr/bin/install -c rdjpgcom /usr/local/bin/rdjpgcom
/usr/bin/install -c wrjpgcom /usr/local/bin/wrjpgcom
/usr/bin/install -c -m 644 ./cjpeg.1 /usr/local/man/man1/cjpeg.1
/usr/bin/install -c -m 644 ./djpeg.1 /usr/local/man/man1/djpeg.1
/usr/bin/install -c -m 644 ./jpegtran.1 /usr/local/man/man1/jpegtran.1
/usr/bin/install -c -m 644 ./rdjpgcom.1 /usr/local/man/man1/rdjpgcom.1
/usr/bin/install -c -m 644 ./wrjpgcom.1 /usr/local/man/man1/wrjpgcom.1

        [download]
[reply]
[d/l]
        I also checked mysql table like this: 
        mysql> select * from sessions;
+----------------------------------+----------------------------------
+-------------------------------------------------+
| id                               | a_session                        
+                                                 |
+----------------------------------+----------------------------------
+-------------------------------------------------+
| e6a5ed9dd1afc80ad115097e97ea7e5c |    
 e6a5ed9dd1afc80ad115097e97ea7e5c   
                                    _session_id
security_code |
| abe1ec864cf636ea147b8982331fc211 |    
 abe1ec864cf636ea147b8982331fc211   
                                    _session_id
security_code |
| 4a926009da58be40afdad7baef41d9e4 |    
 4a926009da58be40afdad7baef41d9e4   
                                    _session_id
security_code |
| 7a65f897282e294c9153892395dfe84c |    
 7a65f897282e294c9153892395dfe84c   
                                    _session_id
security_code |
+----------------------------------+----------------------------------
+-------------------------------------------------+
4 rows in set (0.00 sec)

        [download]
[reply]
[d/l]
        BTW, I noticed there are totally three items in the OPTIONAL section for Linux INSTALLATION from the README file. Are they all necessary to run demo.pl ? Thanks. 
        (OPTIONAL)
The FreeType font rendering library for TrueType fonts.
The JPEG library, version 6b or later
The XPM library,

        [download]
[reply]
[d/l]
        And perl gdtest.pl > test.jpeg still does not work.
[reply]
      Also check the version of GD, only newer versions support jpeg.
[reply]
        Hi, The GD version is 2.44.
[reply]

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