function createFullImage($origImage, $origWidth, $origHeight, $file)
{
global $fullWidthMax, $fullHeightMax;
$scale = min($fullWidthMax / $origWidth, $fullHeightMax / $origHeight, 1);
$newWidth = $origWidth * $scale;
$newHeight = $origHeight * $scale;
imageToFile($origImage, $origWidth, $origHeight, $newWidth, $newHeight, $file);
logEvent("create-full-image", $origImage, $file, $scale);
}
function twittercard_load($content)
{
global $template, $picture, $page;
global $twitter_site;
// get image url
$query = sprintf('
select path, name, comment
FROM ' . IMAGES_TABLE . '
WHERE id = %s
;', $page['image_id']);
$result = pwg_query($query);
$row = pwg_db_fetch_assoc($result);
$url = substr($row['path'], 2);
$title = str_replace('"', '\\"', $row['name']);
$description = str_replace('"', '\\"', $row['comment']);
// Check if folder exists
$thumbFolder = PHPWG_PLUGINS_PATH . basename(dirname(dirname(__FILE__))) . '/thumbs/' . dirname($url);
if (!file_exists($thumbFolder)) {
mkdir($thumbFolder, 0777, true);
}
$extension_pos = strrpos($url, '.');
$thumb = $thumbFolder . "/" . basename(substr($url, 0, $extension_pos)) . '_tw_thumb' . substr($url, $extension_pos);
$thumbLocal = PHPWG_PLUGINS_PATH . basename(dirname(dirname(__FILE__))) . '/thumbs/' . substr($url, 0, $extension_pos) . '_tw_thumb' . substr($url, $extension_pos);
// Check if a thumb already exists, otherwise create a thumb
if (!file_exists($thumb)) {
/**
* Create a thumbnail image from $inputFileName no taller or wider than
* $maxSize. Returns the new image resource or false on error.
* Author: mthorn.net
*/
function thumbnail($inputFileName, $maxSize = 100)
{
$info = getimagesize($inputFileName);
$type = isset($info['type']) ? $info['type'] : $info[2];
// Check support of file type
if (!(imagetypes() & $type)) {
// Server does not support file type
return false;
}
$width = isset($info['width']) ? $info['width'] : $info[0];
$height = isset($info['height']) ? $info['height'] : $info[1];
// Calculate aspect ratio
$wRatio = $maxSize / $width;
$hRatio = $maxSize / $height;
// Using imagecreatefromstring will automatically detect the file type
$sourceImage = imagecreatefromstring(file_get_contents($inputFileName));
// Calculate a proportional width and height no larger than the max size.
if ($width <= $maxSize && $height <= $maxSize) {
// Input is smaller than thumbnail, do nothing
return $sourceImage;
} elseif ($wRatio * $height < $maxSize) {
// Image is horizontal
$tHeight = ceil($wRatio * $height);
$tWidth = $maxSize;
} else {
// Image is vertical
$tWidth = ceil($hRatio * $width);
$tHeight = $maxSize;
}
$thumb = imagecreatetruecolor($tWidth, $tHeight);
if ($sourceImage === false) {
// Could not load image
return false;
}
// Copy resampled makes a smooth thumbnail
imagecopyresampled($thumb, $sourceImage, 0, 0, 0, 0, $tWidth, $tHeight, $width, $height);
imagedestroy($sourceImage);
return $thumb;
}
/**
* Save the image to a file. Type is determined from the extension.
* $quality is only used for jpegs.
* Author: mthorn.net
*/
function imageToFile($im, $fileName, $quality = 80)
{
if (!$im || file_exists($fileName)) {
return false;
}
$ext = strtolower(substr($fileName, strrpos($fileName, '.')));
switch ($ext) {
case '.gif':
imagegif($im, $fileName);
break;
case '.jpg':
case '.jpeg':
imagejpeg($im, $fileName, $quality);
break;
case '.png':
imagepng($im, $fileName);
break;
case '.bmp':
imagewbmp($im, $fileName);
break;
default:
return false;
}
return true;
}
$im = thumbnail($url, 435);
imageToFile($im, $thumb);
}
$template->append('head_elements', '
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="' . $title . '">
<meta name="twitter:description" content="' . $description . '">
<meta name="twitter:site" content="' . $twitter_site . '">
<meta name="twitter:image" content="http://' . $_SERVER['HTTP_HOST'] . substr($_SERVER['REQUEST_URI'], 0, strrpos(substr($_SERVER['REQUEST_URI'], 0, strrpos($_SERVER['REQUEST_URI'], '?')), '/')) . '/' . $thumbLocal . '">');
}
$sImage = $uploaded;
$info = pathinfo($sImage);
$ext = $info['extension'];
// is this a gif or is it a transparent png -- ACP-518
if ($ext == "gif" || ord(@file_get_contents($sImage, NULL, NULL, 25, 1)) == 6) {
$gd = FALSE;
}
// try to generate thumb if gd is available
$_SESSION['site_registration']['valid_entries'] = TRUE;
if ($gd) {
$im = thumbnail($sImage, 100);
$info = getimagesize($sImage);
$mime = image_type_to_mime_type($info[2]);
header("Content-Type: {$mime}");
header("Content-Length: " . filesize($sImage));
imageToFile($im, $sImage . '-temp-thumbnail.' . $ext);
echo file_get_contents($sImage . '-temp-thumbnail.' . $ext);
imagedestroy($im);
} else {
$info = getimagesize($uploaded);
$mime = image_type_to_mime_type($info[2]);
header("Content-Type: {$mime}");
header("Content-Length: " . filesize($sImage));
echo file_get_contents($sImage);
}
break;
// ajax check for coppa options
// ajax check for coppa options
case 'check_coppa':
$arr = array();
$arr['use_coppa'] = $vbulletin->options['usecoppa'];
