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ChatGPT optimized #6

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186 changes: 65 additions & 121 deletions index.php
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Original file line number Diff line number Diff line change
@@ -1,126 +1,85 @@
<?php

class TDTCloudinaryForwarder
class CloudinaryForwarder
{
private $cloudName;
private $cloudMapping;
private $cloudUploadEndpoint;

private $resourceRequestURL;
private $resourceRequestRegex = "/wp-content\/uploads\/(.*?)\.(jpe?g|png|gif|webp|avif|tiff|mp4|webm|pdf)/i";

private $resourceName;
private $resourceExtension;
private $resourceSize;
private $resourceSize = ['width' => 0, 'height' => 0];

private $enableImgHeightVerify = false;
private $wp_image_sizes = [
'medium' => 300,
'large' => 1024,
'enigma-mobile' => 325,
'enigma-mobile-2x' => 650,
'enigma-mobile-3x' => 975,
'enigma-desktop' => 750,
'enigma-desktop-2x' => 1500,
'enigma-desktop-3x' => 2250,
];

// Constructor
public function __construct()
{
$this->cloudName = getenv('CLOUDINARY_CLOUD_NAME') ?: CLOUDINARY_CLOUD_NAME;
$this->cloudMapping = getenv('CLOUDINARY_CLOUD_MAPPING') ?: CLOUDINARY_CLOUD_MAPPING;
$this->cloudUploadEndpoint = 'https://res.cloudinary.com/' . $this->cloudName;
$this->cloudName = getenv('CLOUDINARY_CLOUD_NAME') ?: defined('CLOUDINARY_CLOUD_NAME') ? CLOUDINARY_CLOUD_NAME : '';
$this->cloudMapping = getenv('CLOUDINARY_CLOUD_MAPPING') ?: defined('CLOUDINARY_CLOUD_MAPPING') ? CLOUDINARY_CLOUD_MAPPING : '';

if (empty($this->cloudName) || empty($this->cloudMapping)) {
if (!$this->cloudName || !$this->cloudMapping) {
throw new Exception('Cloudinary configuration is missing');
}

$this->enableImgHeightVerify = false;
$this->cloudUploadEndpoint = 'https://res.cloudinary.com/' . $this->cloudName;

$this->getRequestedImg();
}

private function getRequestedURL($is_forwarded = false)
private function getRequestedURL($isForwarded = false)
{
$ssl = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on');
$port = $_SERVER['SERVER_PORT'];
$port = ((!$ssl && $port == '80') || ($ssl && $port == '443')) ? '' : ':' . $port;
$http_host = isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : null;
$host = ($is_forwarded && isset($_SERVER['HTTP_X_FORWARDED_HOST'])) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $http_host;
$host = isset($host) ? $host : $_SERVER['SERVER_NAME'] . $port;
return 'https://' . $host . $_SERVER['REQUEST_URI'];
$ssl = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == 'on');
$port = ($_SERVER['SERVER_PORT'] != '80' && $_SERVER['SERVER_PORT'] != '443') ? ':' . $_SERVER['SERVER_PORT'] : '';
$host = $isForwarded && isset($_SERVER['HTTP_X_FORWARDED_HOST']) ? $_SERVER['HTTP_X_FORWARDED_HOST'] : $_SERVER['HTTP_HOST'];

return 'https://' . $host . $port . $_SERVER['REQUEST_URI'];
}

private function getCloudinaryURL()
{
// From /2022/01/cloudflare-chrome.png to tuandev-s3/2022/01/cloudflare-chrome.png
$theURL = $this->cloudMapping . '/' . $this->resourceName . '.' . $this->resourceExtension;

// From tuandev-s3/2022/01/cloudflare-chrome.png to f_auto/tuandev-s3/2022/01/cloudflare-chrome.png
$theURL = $this->getImageSizing() . $this->getImageFormatByAcceptHeader() . '/' . $theURL;

// Prepend /upload/ to the URL
$theURL = '/upload/' . $theURL;

$theURL = $this->cloudUploadEndpoint . ($this->isVideoRequest() ? '/video' : '/image') . $theURL;
$url = '/upload/' . $this->getImageSizing() . $this->getImageFormat() . '/' . $this->cloudMapping . '/' . $this->resourceName . '.' . $this->resourceExtension;

return $theURL;
return $this->cloudUploadEndpoint . ($this->isVideoRequest() ? '/video' : '/image') . $url;
}

private function isValidImageSize()
{
$wp_image_sizes = array(
'medium' => array(
'width' => 300,
),
'large' => array(
'width' => 1024,
),
'enigma-mobile' => array(
'width' => 325,
),
'enigma-mobile-2x' => array(
'width' => 650,
),
'enigma-mobile-3x' => array(
'width' => 975,
),
'enigma-desktop' => array(
'width' => 750,
),
'enigma-desktop-2x' => array(
'width' => 1500,
),
'enigma-desktop-3x' => array(
'width' => 2250,
),
);

// Check if match any in WordPress's registered size
foreach ($wp_image_sizes as $size => $size_info) {
if ($this->resourceSize['width'] == $size_info['width']) {
return true;
}

if ($this->enableImgHeightVerify && $this->resourceSize['height'] == $size_info['height']) {
return true;
}
}

return false;
return isset($this->wp_image_sizes[$this->resourceSize['width']]);
}

private function getImageSizing()
{
if ($this->isResizeRequest() === false) {
if (!$this->isResizeRequest()) {
return '';
}

$sizing = '';
$sizing .= $this->resourceSize['width'] > 0 ? ',w_' . $this->resourceSize['width'] : '';
$sizing .= ($this->enableImgHeightVerify && $this->resourceSize['height'] > 0) ? ',h_' . $this->resourceSize['height'] : '';
$sizing = 'c_scale';
$sizing .= $this->resourceSize['width'] ? ',w_' . $this->resourceSize['width'] : '';
$sizing .= $this->enableImgHeightVerify && $this->resourceSize['height'] ? ',h_' . $this->resourceSize['height'] : '';

return 'c_scale' . $sizing . '/';
return $sizing . '/';
}

private function getImageFormatByAcceptHeader()
private function getImageFormat()
{
if ($this->isVideoRequest()) {
return 'f_auto,q_auto';
}
return $this->CloudinaryMapByAcceptHeader();
}

private function CloudinaryMapByAcceptHeader()
{
switch (true) {
case $this->resourceExtension == 'gif':
return 'f_auto,q_auto:best';
Expand All @@ -137,34 +96,26 @@ private function getRequestedImg()
{
$this->resourceRequestURL = $this->getRequestedURL();

if (preg_match_all($this->resourceRequestRegex, $this->resourceRequestURL, $matches)) {
$this->resourceName = $matches[1][0];
if (preg_match($this->resourceRequestRegex, $this->resourceRequestURL, $matches)) {
$this->resourceName = $matches[1];
$this->resourceExtension = strtolower($matches[2]);

$this->resourceSize = [];
if (preg_match_all('/-([0-9]+)x([0-9]+)$/', $this->resourceName, $s_matches)) {
if (preg_match('/-([0-9]+)x([0-9]+)$/', $this->resourceName, $sizeMatches)) {
$this->resourceSize = [
'width' => $s_matches[1][0],
'height' => $s_matches[2][0]
'width' => $sizeMatches[1],
'height' => $sizeMatches[2]
];

if ($this->isValidImageSize() === false) {
if (!$this->isValidImageSize()) {
http_response_code(404);
die();
exit;
}

// To remove the size from the filename
$this->resourceName = preg_replace('/-([0-9]+)x([0-9]+)$/', '', $this->resourceName);
} else {
$this->resourceSize = [
'width' => 0,
'height' => 0
];
}

$this->resourceExtension = strtolower($matches[2][0]);
} else {
http_response_code(404);
die();
exit;
}
}

Expand All @@ -173,52 +124,45 @@ public function saveImg()
$ch = curl_init();
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_URL, $this->getCloudinaryURL());
$response_headers = [];
curl_setopt(
$ch,
CURLOPT_HEADERFUNCTION,
function ($curl, $header) use (&$response_headers) {
$len = strlen($header);
$header = explode(':', $header, 2);
if (count($header) < 2) {
return $len;
}
$response_headers[strtolower(trim($header[0]))][] = trim($header[1]);

$responseHeaders = [];
curl_setopt($ch, CURLOPT_HEADERFUNCTION, function ($curl, $header) use (&$responseHeaders) {
$len = strlen($header);
$header = explode(':', $header, 2);
if (count($header) < 2) {
return $len;
}
);
$response_body = curl_exec($ch);
$response_code = curl_getinfo($ch, CURLINFO_RESPONSE_CODE);
$responseHeaders[strtolower(trim($header[0]))][] = trim($header[1]);
return $len;
});

$responseBody = curl_exec($ch);
$responseCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
http_response_code($response_code);
foreach ($response_headers as $name => $values) {

http_response_code($responseCode);
foreach ($responseHeaders as $name => $values) {
foreach ($values as $value) {
header($name . ': ' . $value);
}
}

header("x-service: cloudinary-forwarder");
echo $response_body;
echo $responseBody;
}

private function isResizeRequest()
{
if ($this->resourceSize['height'] > 0 && $this->resourceSize['width'] > 0) {
return true;
}
return false;
return $this->resourceSize['width'] > 0 && $this->resourceSize['height'] > 0;
}

// If the extension is video format, return true
private function isVideoRequest()
{
if (in_array($this->resourceExtension, ['mp4', 'webm', 'ogg', 'ogv', 'mp3', 'wav', 'flac', 'aac', 'm4a', 'm4v', 'mov', 'wmv', 'avi', 'mkv', 'mpg', 'mpeg', '3gp', '3g2'])) {
return true;
}
return false;
$videoExtensions = ['mp4', 'webm', 'ogg', 'ogv', 'mp3', 'wav', 'flac', 'aac', 'm4a', 'm4v', 'mov', 'wmv', 'avi', 'mkv', 'mpg', 'mpeg', '3gp', '3g2'];
return in_array($this->resourceExtension, $videoExtensions);
}
}

$newWPImgCloudinary = new TDTCloudinaryForwarder();
$newWPImgCloudinary->saveImg();
$cloudinaryForwarder = new CloudinaryForwarder();
$cloudinaryForwarder->saveImg();