<?php
/*
Changelog:

[2026-04-13]: v1.0 - Added the ability to create a webp version from the original without -scaled

*/
/******************** SETTINGS ********************/

$masterServer = ""; // Leave empty if is a master machine
$masterHost   = ""; // Leave empty if is a master machine

header("ta-machine-404: " .  php_uname('n') . " - " . date("Y-m-d H:i:s"));


function renderImageFromMaster( $path_parts ){
    
    
}

function renderAlternativeImageVersion( $path_parts ){
    
    
}

/******************** START ********************/

$path_parts = pathinfo($_SERVER['REDIRECT_URL']);


// Check if is requested the webP version of the image
if ( $path_parts["extension"] == "webp" ) {
    
    // Remove the extension and check if the image exists
    $imagePath = sprintf("/tauser/www%s/%s",
        $path_parts["dirname"],
        $path_parts["filename"]
        );
    
    $newImagePath = $imagePath . ".webp";
    
    if ( file_exists($imagePath) ) {
        
        // Create the webP version of the image and return it
        
        $im = imagecreatefromjpeg($imagePath);
        
        if ( $im == false ) {
            
            $im = imagecreatefrompng($imagePath);
            
        }
        
        //Quality of the new webp image. 1-100.
        //Reduce this to decrease the file size.
        $quality = 70;
        
        
        if ( $im != false ) {
            
            
            //Create the webp image and save it
            imagewebp($im, $newImagePath, $quality);
            
            //Clean up / Destroy the image object.
            imagedestroy($im);
            
        }
        
        // We need to check if the image is create correctly
        if ( file_exists($newImagePath) && filesize($newImagePath) > 0 ) {
            
            header("HTTP/1.1 200 OK", true);
            header('Status: 200 OK', true);
            
            //Set the content-type
            header('Content-Type: image/webp');
            
            echo file_get_contents($newImagePath);
            
            
        } else {
            
            // There is a problem with the image
            // We generate the webp by copying the original image
            copy(
                $imagePath,
                $newImagePath
                );
            
            
            // We take the original file and we save it as .webp
            header("HTTP/1.1 200 OK", true);
            header('Status: 200 OK', true);
            
            //Set the content-type
            header('Content-Type: image/webp');
            
            
            echo file_get_contents($newImagePath);
            
            //var_dump( file_exists($imagePath), $imagePath );
            
        }
        
        die();
        
        
    } else {
        
        // The image not exists, we need to get
        if ( $masterServer != "" && $masterHost != "" ) {
            
            $masterUrl = $masterServer.$_SERVER['REDIRECT_URL'];
            
            
            // var_dump($masterUrl, $masterHost);die();
            
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $masterUrl);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: '.$masterHost));
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT,  120);
            curl_setopt($ch, CURLOPT_TIMEOUT, 120);
            curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
            
            $result = curl_exec($ch);
            $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            
            
            //  var_dump( $httpcode, $result);die();
            
            if  ($httpcode != 200) {
                
                $seconds_to_cache = 5;
                $ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
                header("Expires: $ts");
                header("Pragma: cache");
                header("Cache-Control: max-age=$seconds_to_cache");
                echo( $result );
                die();
                
            }
            
            error_log("404.php: request of ".$_SERVER['REDIRECT_URL'], 0);
            
            header("HTTP/1.1 200 OK", true);
            header('Status: 200 OK', true);
            // header("Content-type: image/".(($path_parts["extension"]=="jpg")?"jpeg":$path_parts["extension"]), false);
            header('Content-Type: image/webp');
            file_put_contents($newImagePath, $result);
            
            echo( $result );
            
        } else {
            $filenamePartsArr = explode("-", $path_parts["filename"]);
            if ( count( $filenamePartsArr ) > 0 && preg_match('/\d+x\d+\.\w+/',  $filenamePartsArr[ count( $filenamePartsArr ) - 1 ], $match ) ) {
                $filenamePartsArr_extension = explode(".", $filenamePartsArr[ count($filenamePartsArr)-1 ]);
                $imagePath_without_dimension = str_replace("-". $filenamePartsArr_extension[0], "", $imagePath);
                
            }
            
            $imagePath_without_scaled = str_replace("-scaled", "", $imagePath);
            
            if(file_exists($imagePath_without_scaled)){
                 // Create the webP version of the image and return it
                $newImagePath =  $imagePath . ".webp";
                $im = imagecreatefromjpeg($imagePath_without_scaled);
                
                if ( $im == false ) {
                    
                    $im = imagecreatefrompng($imagePath_without_scaled);
                    
                }
                
                //The path that we want to save our webp file to.
                
                
                //Quality of the new webp image. 1-100.
                //Reduce this to decrease the file size.
                $quality = 70;
                
                header("HTTP/1.1 200 OK", true);
                header('Status: 200 OK', true);
                //Set the content-type
                header('Content-Type: image/webp');
                
                //Create the webp image and save it
                imagewebp($im, $newImagePath, $quality);
                
                //Clean up / Destroy the image object.
                imagedestroy($im);
                
                echo file_get_contents($newImagePath);
                
                die();
            }elseif ( file_exists($imagePath_without_dimension) ) {
                // Create the webP version of the image and return it
                $newImagePath =  $imagePath . ".webp";
                $im = imagecreatefromjpeg($imagePath_without_dimension);
                
                if ( $im == false ) {
                    
                    $im = imagecreatefrompng($imagePath_without_dimension);
                    
                }
                
                //The path that we want to save our webp file to.
                
                
                //Quality of the new webp image. 1-100.
                //Reduce this to decrease the file size.
                $quality = 70;
                
                header("HTTP/1.1 200 OK", true);
                header('Status: 200 OK', true);
                //Set the content-type
                header('Content-Type: image/webp');
                
                //Create the webp image and save it
                imagewebp($im, $newImagePath, $quality);
                
                //Clean up / Destroy the image object.
                imagedestroy($im);
                
                echo file_get_contents($newImagePath);
                
                die();
                
            }
        }
        
    }
    
} else if ($path_parts["extension"]=="jpg" ||
    $path_parts["extension"]=="gif" ||
    $path_parts["extension"]=="png" ||
    $path_parts["extension"]=="jpeg"
    ) {
        
        //echo  "curl to $masterUrl\n";
        
        // Is an image, check if are present the resize dimensions
        $filenamePartsArr = explode("-", $path_parts["filename"]);
        
        if ( count( $filenamePartsArr ) > 0 ) {
            
            $newFilename = sprintf("%s.%s",
                str_replace("-". $filenamePartsArr[ count($filenamePartsArr)-1 ], "", $path_parts["filename"]),
                $path_parts["extension"]
                );
            
            $newFilePath = "/tauser/www" .  $path_parts["dirname"] . "/" . $newFilename;
            
            if ( file_exists($newFilePath) ) {
                
                // The file exists, return it in the response
                $seconds_to_cache = 5;
                $ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
                header("Expires: $ts");
                header("Pragma: cache");
                header("Cache-Control: max-age=$seconds_to_cache");
                header("HTTP/1.1 200 OK", true);
                header('Status: 200 OK', true);
                header("Content-type: ". mime_content_type($newFilePath) , false);
                
                echo( file_get_contents($newFilePath) );
                
                die();
                
            }
            
        }
        
        if ( $masterServer != "" && $masterHost != "" ) {
            
            $masterUrl = $masterServer.$_SERVER['REDIRECT_URL'];
            
            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $masterUrl);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array('Host: '.$masterHost));
            curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
            curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            
            curl_setopt($ch, CURLOPT_CONNECTTIMEOUT,  120);
            curl_setopt($ch, CURLOPT_TIMEOUT, 120);
            curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
            
            $result = curl_exec($ch);
            $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            
            
            if  ($httpcode != 200) {
                $seconds_to_cache = 5;
                $ts = gmdate("D, d M Y H:i:s", time() + $seconds_to_cache) . " GMT";
                header("Expires: $ts");
                header("Pragma: cache");
                header("Cache-Control: max-age=$seconds_to_cache");
            } else {
                
                
                header("HTTP/1.1 200 OK", true);
                header('Status: 200 OK', true);
                
                
            }
            
            error_log("404.php: request of ".$_SERVER['REDIRECT_URL'], 0);
            
            
            header("Content-type: image/".(($path_parts["extension"]=="jpg")?"jpeg":$path_parts["extension"]), false);
            
            echo( $result );
            
        }
        
    }
    
    
    // If te request image not exists, check
    
    
    die();