A quick easy and dirty way to watermark CPG 1.4.x with out over writing any file

[adamluz]

Ok I can not figure out how to create a new topic so someone will need to split this on its own. Here is a quick easy and dirty way to watermark CPG 1.4.x with out over writing any files.

Create watermark.php in the root

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<?php

    $imagesource =  $_GET['path'];
    $watermarkPath = 'watermark.png'; // Set name of watermark CHANGE THIS TO THE NAME OF YOUR WATERMARK
    $filetype = substr($imagesource,strlen($imagesource)-4,4);
    $filetype = strtolower($filetype);
    $watermarkType = substr($watermarkPath,strlen($watermarkPath)-4,4);
    $watermarkType = strtolower($watermarkType);
    
    if($filetype == ".gif")  
        $image = @imagecreatefromgif($imagesource);
    else  
        if($filetype == ".jpg" || $filetype == "jpeg")  
            $image = @imagecreatefromjpeg($imagesource);
        else
            if($filetype == ".png")  
                $image = @imagecreatefrompng($imagesource);
            else
                die();  
    
    if(!$image)
        die();
    
    if($watermarkType == ".gif")
        $watermark = @imagecreatefromgif($watermarkPath);
    else
        if($watermarkType == ".png")
            $watermark = @imagecreatefrompng($watermarkPath);
        else
            die();
        
    if(!$watermark)
        die();
        
    $imagewidth = imagesx($image);
    $imageheight = imagesy($image);  
    $watermarkwidth =  imagesx($watermark);
    $watermarkheight =  imagesy($watermark);
    $startwidth = (($imagewidth - $watermarkwidth) - 20);
    $startheight = (($imageheight - $watermarkheight) - 20);
    imagecopy($image, $watermark,  $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
    imagejpeg($image);
    imagedestroy($image);
    imagedestroy($watermark);
?>



Modify includes/themes.inc.php

Find:

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              <?php     echo  '<a href="javascript: window.close()"><img src="'


Change to

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              <?php     echo  '<a href="javascript: window.close()"><img src="watermark.php?path=


Find

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    if ($mime_content['content']=='image') {
        if (isset($image_size['reduced'])) {
            $winsizeX = $CURRENT_PIC_DATA['pwidth']+5;  //the +'s are the mysterious FF and IE paddings
            $winsizeY = $CURRENT_PIC_DATA['pheight']+3; //the +'s are the mysterious FF and IE paddings
            $pic_html = "<a href=\"javascript:;\" onclick=\"MM_openBrWindow('displayimage.php?pid=$pid&amp;fullsize=1','" . uniqid(rand()) . "','scrollbars=yes,toolbar=no,status=no,resizable=yes,width=$winsizeX,height=$winsizeY')\">";
            $pic_title = $lang_display_image_php['view_fs'] . "\n==============\n" . $pic_title;
            $pic_html .= "<img src=\"" . $picture_url . "\" class=\"image\" border=\"0\" alt=\"{$lang_display_image_php['view_fs']}\" /><br />";
            $pic_html .= "</a>\n";
        } else {
            $pic_html = "<img src=\"" . $picture_url . "\" {$image_size['geom']} class=\"image\" border=\"0\" alt=\"\" /><br />\n";
        }



Replace with:

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    if ($mime_content['content']=='image') {
        if (isset($image_size['reduced'])) {
            $winsizeX = $CURRENT_PIC_DATA['pwidth']+5;  //the +'s are the mysterious FF and IE paddings
            $winsizeY = $CURRENT_PIC_DATA['pheight']+3; //the +'s are the mysterious FF and IE paddings
            $pic_html = "<a href=\"javascript:;\" onclick=\"MM_openBrWindow('displayimage.php?pid=$pid&amp;fullsize=1','" . uniqid(rand()) . "','scrollbars=yes,toolbar=no,status=no,resizable=yes,width=$winsizeX,height=$winsizeY')\">";
            $pic_title = $lang_display_image_php['view_fs'] . "\n==============\n" . $pic_title;
            $pic_html .= "<img src=\"watermark.php?path=" . $picture_url . "\" class=\"image\" border=\"0\" alt=\"{$lang_display_image_php['view_fs']}\" /><br />";
            $pic_html .= "</a>\n";
        } else {
            $pic_html = "<img src=\"watermark.php?path=" . $picture_url . "\" {$image_size['geom']} class=\"image\" border=\"0\" alt=\"\" /><br />\n";
        }


Thats it.

Upload watermark.png to root dir

[Nibbler]

Thanks for your contribution, but this 'on the fly' watermarking is only suitable for very low traffic websites. It doesn't stop people getting at the originals either.