~xibo-maintainers/xibo/tempel

function ResizeImage( $file, $target = "", $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = false, $use_linux_commands = false )

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{

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if ( $height <= 0 && $width <= 0 )

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{

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return false;

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}

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$info = getimagesize($file);

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$image = '';

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$final_width = 0;

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$final_height = 0;

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list($width_old, $height_old) = $info;

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if ($proportional)

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{

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if ($width == 0) $factor = $height/$height_old;

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elseif ($height == 0) $factor = $width/$width_old;

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else $factor = min ( $width / $width_old, $height / $height_old);

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$final_width = round ($width_old * $factor);

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$final_height = round ($height_old * $factor);

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}

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else

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{

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$final_width = ( $width <= 0 ) ? $width_old : $width;

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$final_height = ( $height <= 0 ) ? $height_old : $height;

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}

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switch ( $info[2] )

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{

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case IMAGETYPE_GIF:

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$image = imagecreatefromgif($file);

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break;

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case IMAGETYPE_JPEG:

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$image = imagecreatefromjpeg($file);

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break;

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case IMAGETYPE_PNG:

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$image = imagecreatefrompng($file);

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break;

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default:

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return false;

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}

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$image_resized = imagecreatetruecolor( $final_width, $final_height );

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if ( ($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG) )

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{

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$trnprt_indx = imagecolortransparent($image);

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// If we have a specific transparent color

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if ($trnprt_indx >= 0)

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{

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// Get the original image's transparent color's RGB values

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$trnprt_color = imagecolorsforindex($image, $trnprt_indx);

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// Allocate the same color in the new image resource

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$trnprt_indx = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);

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// Completely fill the background of the new image with allocated color.

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imagefill($image_resized, 0, 0, $trnprt_indx);

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// Set the background color for new image to transparent

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imagecolortransparent($image_resized, $trnprt_indx);

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}

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// Always make a transparent background color for PNGs that don't have one allocated already

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elseif ($info[2] == IMAGETYPE_PNG)

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{

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// Turn off transparency blending (temporarily)

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imagealphablending($image_resized, false);

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// Create a new transparent color for image

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$color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);

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// Completely fill the background of the new image with allocated color.

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imagefill($image_resized, 0, 0, $color);

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// Restore transparency blending

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imagesavealpha($image_resized, true);

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}

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}

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imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);

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if ( $delete_original )

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{

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if ( $use_linux_commands )

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exec('rm '.$file);

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else

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@unlink($file);

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}

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switch ( strtolower($output) )

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{

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case 'browser':

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$mime = image_type_to_mime_type($info[2]);

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header("Content-type: $mime");

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$output = NULL;

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break;

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case 'file':

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$output = $target;

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break;

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case 'return':

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return $image_resized;

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break;

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default:

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break;

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}

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switch ( $info[2] ) {

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case IMAGETYPE_GIF:

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imagegif($image_resized, $output);

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break;

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case IMAGETYPE_JPEG:

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imagejpeg($image_resized, $output, 70);

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break;

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case IMAGETYPE_PNG:

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imagepng($image_resized, $output, 5);

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break;

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default:

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return false;

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}

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return true;

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}

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/**

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* Creates a form token

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* @return

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function CreateFormToken($tokenName = "token")

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{

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//Store in the users session

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$token = md5(uniqid()."xsmsalt".time());

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$_SESSION[$tokenName] = $token;

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$_SESSION[$tokenName.'_timeout'] = time();

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return $token;

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}

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/**

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* Checks a form token

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* @param string token

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* @return

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function CheckFormToken($token, $tokenName = "token")

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{

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global $db;

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if ($token == $_SESSION[$tokenName])

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{

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// See if its still in Date

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if (($_SESSION[$tokenName.'_timeout'] + 1200) <= time())

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{

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return false;

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}

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return true;

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}

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else

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{

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unset($_SESSION[$tokenName]);

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Log::error("Form token incorrect from: ". $_SERVER['REMOTE_ADDR']. " with token [$token] for session_id [" . session_id() . ']');

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return false;

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}

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}

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/**

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* Convert a shorthand byte value from a PHP configuration directive to an integer value

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* @param string $value

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* @return int

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function convertBytes( $value )

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{

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if ( is_numeric( $value ) )

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{

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return $value;

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}

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else

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{

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$value_length = strlen( $value );

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$qty = substr( $value, 0, $value_length - 1 );

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$unit = strtolower( substr( $value, $value_length - 1 ) );

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switch ( $unit )

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{

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case 'k':

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$qty *= 1024;

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break;

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case 'm':

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$qty *= 1048576;

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break;

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case 'g':

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$qty *= 1073741824;

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break;

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}

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return $qty;

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}

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}

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b'\\ No newline at end of file'

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