[SOLVED] What's the difference....

[RhysAndrews]

There must be a difference between:

md5($_SESSION['email']);

 

and a string of what it returns.

 

Because I am using an ajax gallery, and when I set the address of the photos (in a variable) to:

$gallery_address = '/userdata/' . md5($_SESSION['email']) . '/';

 

the files are found but the images won't show. However, if I set it to:

$gallery_address = '/userdata/f7bfdabc43ff57bcfa425733a8651032/';

 

Where "f7bfdabc43ff57bcfa425733a8651032" is the exact same hash as what  md5($_SESSION['email']) returns, the gallery shows the images fine. I've tried placing md5($_SESSION['email']) in a separate variable and placing the variable in the gallery address instead, and it has the same problem.

 

Help appreciated!

-Rhys

 

 

 

 

[corbin]

Have you echo'd md5($_SESSION['email']) to make sure it matches?

[RhysAndrews]

Yep.

If it didn't match, the gallery wouldn't even detect the files because it'd be pointed to a directory that doesn't exist - it finds the photos and shows their filenames, but the thumbnails and preview images are empty.

[dawsba]

how are you pushing the the string into the session could you be adding whitespace?? try trim(md5($_SESSION['email'])) if not send me your code snippet

[RhysAndrews]

Just tried the trim - that didn't make a difference either. Here's the gallery script. I use saurdo gallery, so if you want all the scripts just download it or ask me =]

 

-Rhys

 

<?php

// Globals - Do not tamper with these
global $gallery_root, $gallery_address, $file, $excluded_folders, $pictwidth, $pictheight, $thumbwidth, $thumbheight, $gallery_width;

// ---------- Settings ----------
// Configure these settings, to use the gallery.

// Your gallery folder (this is where your pictures and picture folders are located).
$gallery_address = '/userdata/'.trim(md5($_SESSION['email'])).'/';


// Add foldernames to exclude. (add more lines like this on more excludes.)
$excluded_folders[] = 'cgi-bin';

// Picture Preview size
$pictwidth = 600;
$pictheight = 600;

// Thumbnail size
$thumbwidth = 80;
$thumbheight = 80;
// ---------- Settings end ----------

$gallery_root = $_SERVER['DOCUMENT_ROOT'].$gallery_address;
$gallery_address = 'http://'.$_SERVER['HTTP_HOST'].$gallery_address;

function showGallery() {
    global $file;
    
    if (!validateFile())
    {
        echo 'Invalid folder or file';
        return;
    }
    createNavigation();

    $path = pathinfo($file);
    if ($path['extension'] == '')
    {
    //Display Dir(s) (if any)
    showDirs();

    //Display Thumb(s) (if any)
    showThumbs();

    } else {
    showSlide($file);

    }
}

function setCurrentdir()
{
    global $currentdir, $file;
    $path = pathinfo($file);
    if ($path['extension'] != '')
        $currentdir = $path['dirname'].'/';
    else
        $currentdir = $file;
}

function buildDirs($Dir) {
    if ( substr ( $Dir, -1 ) != '/' ) $Dir .= '/'; // Add a trailing slash
    $Handle = opendir($Dir);
    $Dirs = array();
    while ( false !== ( $File = readdir ( $Handle ) ) )
    {
        if ( $File == '.' OR $File == '..' OR !is_dir ( $Dir . $File ) ) continue;
        $Dirs[] = $File;
    }
    natcasesort ( $Dirs );
    return $Dirs;
}

function showDirs() {
    global $gallery_root, $currentdir, $file, $excluded_folders;
    $Dirs = buildDirs($gallery_root.$currentdir);
    $runonce = false;
    foreach ( $Dirs as $dir ) {
        if (!in_array($dir, $excluded_folders)) {
            if ( !$runonce ){
                echo '<div class="folder"><IMG src="images/subhead_albums.png" alt="Albums"><br/><table class="foldersbox">';
                $runonce = true;
            }
            echo '<tr><td><a href="'.$_SERVER['PHP_SELF'].'?file='.$currentdir.$dir.'/"><img src=./gallery/images/folder.gif> '.$dir.'</a></td></tr>';
        }
    }
    if ( $runonce )
        echo '</table></div><br/>';
}

///// Show Slide
function showSlide($slidefile) {
    
    global $gallery_root, $gallery_address, $currentdir, $file;
    if ($dir_content = opendir($gallery_root.$currentdir)) {
        while ( false !== ($img = readdir($dir_content)) ) {
            if ( is_file($gallery_root.$currentdir.$img) && eregi(".*(\.jpg|\.gif|\.png|\.jpeg)", $img))
                    $imgfiles[] = $img;
        }
    }

    $slide = '';

    $arraysize = count($imgfiles);
    
    for ($i=0; $i < $arraysize; $i++)
    {
    
        if($currentdir.$imgfiles[$i] == $slidefile)    
        {
            $slide = $imgfiles[$i];              
        }
    }
    
    echo '<div class="image"><a href="'.$gallery_address.$currentdir.$slide.'" target="_new"><img src="./gallery/img.php?file='.$currentdir.$slide.'&thumb=0"></a>
        </div>
        <br/>
        <div class="imgdata"><br/>';


			'
	</ul></div>';

}

//// Displaying thumbs
function showThumbs() {
    
    global $gallery_root, $gallery_address, $currentdir, $file, $thumbwidth, $thumbheight;

    
    if ($dir_content = opendir($gallery_root.$currentdir)) {
        while ( false !== ($file = readdir($dir_content)) ) {
            if ( is_file($gallery_root.$currentdir.$file) )
                if(eregi(".*(\.jpg|\.gif|\.png|\.jpeg)", $file))
                    $imgfiles[] = $file;
        }
    }

    echo '<div class="image"><P>';
    if(isset($imgfiles))
    {
sort($imgfiles);
        foreach ($imgfiles as $img)
        {
            //echo '<div style="position: relative; width: '.($thumbwidth+16).'px; height: '.($thumbheight+16).'px; border: 1px solid #a9a9a9;">';
            echo '<a href="./gallery/img.php?file='.$currentdir.$img.'&thumb=0" class="linkopacity" rel="lightbox['.$currentdir.']" title="View Preview" id="<ul><li>Photo Code - '.substr($img,0,-4).'</a></li></ul>"><img src="./gallery/img.php?file='.$currentdir.$img.'&thumb=1"></a>';
            //echo '</div>';
        }
    }
    echo '</div>';
}

// Validates file variable
function validateFile() {

    global $excluded_folders, $file;
    $file = $_GET['file'];
    
    // validate dir
    if ( strstr($file, '..') || strstr($file, '%2e%2e') )
        return false;
        
    foreach ($excluded_folders as $folder)
    {
        if ( strstr($file, $folder) )
        return false;
    }
    setCurrentdir();
    return true;
}

function createNavigation()
{
    global $currentdir, $file;

    if ($currentdir == './')
    $currentdir = '';
    $nav = split('/', $currentdir);
    array_pop($nav);
    $path = pathinfo($file);
    
    //echo '<div><a href="'.$_SERVER['PHP_SELF'].'">Gallery</a> ';
echo '<div>';
    foreach ($nav as $n)
    {
        $current .= $n.'/';
        echo '» <a href="'.$_SERVER['PHP_SELF'].'?file='.$current.'">'.$n.'</a> ';
    }
    if ($path['extension']!='')
        echo '» <a href="'.$_SERVER['PHP_SELF'].'?file='.$current.$path['basename'].'">'.$path['basename'].'</a>';
    echo '</div><br>';
}
?>

[dawsba]

Ok i need a view more bits;

 

Are you using <?php session_start(); ?> at the top of your script.

can you post a snippet of html output showing the

 

    <a href="./gallery/img.php?file='.$currentdir.$img.'&thumb=0" class="linkopacity" rel="lightbox['.$currentdir.']" title="View Preview" id="<ul><li>Photo Code - '.substr($img,0,-4).'</a></li></ul>"><img src="./gallery/img.php?file='.$currentdir.$img.'&thumb=1"></a>

 

and can u post img.php script

 

and in img.php are you using

 

header("Content-type: image/".substr($file,strlen($file)-4,4)."); // or whatever suits

print $file;

exit;

[corbin]

Somewhere on the page do:

 

echo md5($_SESSION['email']);

 

 

And make sure it matches.

[RhysAndrews]

<?php
require 'logcheck.php';
require('./gallery/gallery.php'); //Load the gallery scripts

if($loggedin==0)
{
header("location: index.php"); //redirect to the index
}?>

This is the code I use. logcheck.php is irrelevant (it had the same issues when a majority of logcheck.php didn't exist).

 

I use this code to show the gallery where I want on the page:

<DIV id='gallery'><?php if ($loggedin==1) showGallery();?></DIV>

 

This is img.php:

<?php
require('./gallery.php');

generateImg($_GET['file'], $_GET['thumb']);

function generateImg($img, $thumb) {

global $gallery_root, $pictwidth, $pictheight, $thumbwidth, $thumbheight;

if($thumb) {
$height = $thumbheight;
$width = $thumbwidth;
} else {
$height = $pictheight;
$width = $pictwidth;
}

$img = $gallery_root.$img;
$path = pathinfo($img);
switch(strtolower($path["extension"])){
	case "jpeg":
	case "jpg":
		Header("Content-type: image/jpeg");
		$img=imagecreatefromjpeg($img);
		break;
	case "gif":
		Header("Content-type: image/gif");
		$img=imagecreatefromgif($img);
		break;
	case "png":
		Header("Content-type: image/png");
		$img=imagecreatefrompng($img);
		break;
	default:
		break;			
}
$xratio = $width/(imagesx($img));
$yratio = $height/(imagesy($img));

if($xratio < 1 || $yratio < 1) {
	if($xratio < $yratio)
		$resized = imagecreatetruecolor($width,floor(imagesy($img)*$xratio));
	else
		$resized = imagecreatetruecolor(floor(imagesx($img)*$yratio), $height);

	imagecopyresampled($resized, $img, 0, 0, 0, 0, imagesx($resized)+1,imagesy($resized)+1,imagesx($img),imagesy($img));

	imagejpeg($resized);
	imagedestroy($resized);
}
else
{
	imagejpeg($img);
}
imagedestroy($img);		
}
?>

I wouldn't be surprised if the source of the issue was in img.php. Thanks for your help!

 

-Rhys

 

 

[RhysAndrews]

can you post a snippet of html output showing the

 

    <a href="./gallery/img.php?file='.$currentdir.$img.'&thumb=0" class="linkopacity" rel="lightbox['.$currentdir.']" title="View Preview" id="<ul><li>Photo Code - '.substr($img,0,-4).'</a></li></ul>"><img src="./gallery/img.php?file='.$currentdir.$img.'&thumb=1"></a>

Right here:

<a href="./gallery/img.php?file=dmkchhkctu.jpg&thumb=0" class="linkopacity" rel="lightbox[]" title="View Preview" id="<ul><li>Photo Code - dmkchhkctu</a></li></ul>"><img src="./gallery/img.php?file=dmkchhkctu.jpg&thumb=1"></a>

(dmkchhtctu.jpg exists)

[dawsba]

I've played around and I cant reproduce your error, it seems to work fine for me.

Try these :

1)DOUBLE check you have session_start(); in each file and at the very top of the files

2)make sure your $gallery_root var in img.php is pointing at the correct folder

3)!!!! make sure gallery.php which is called at the top of img.php has no html output, any output even ascii can case gd to crash, try putting in static vars and comment out require gallery.php see if that fixes anything

 

let me know how you get on , worse case (cos this is buggin me know ) i'll take a zip of the code and fix it.

[RhysAndrews]

Woe mama!

Thanks dawsba - I just placed session_start() at the top of gallery.php and img.php and it's all fine and dandy now.

I think it was img.php that was the problem, because gallery.php detects the files and it did so with no issues, but img.php couldn't display them.

 

You've solved a big problem of mine! Thanks!

-Rhys