Fascinated/sharex-php-uploader
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add types, add comments and add error handling

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Lee 2023-04-09 12:21:39 +01:00
parent 3027dbdd5b
commit 47256117d1
1 changed files with 66 additions and 60 deletions
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126
upload.php
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@ -1,8 +1,12 @@
<?php
// Start time of the script
$before = microtime(true); // Start time of the script
header('Content-type:application/json;charset=utf-8'); // Set the content type to JSON
declare(strict_types=1);
error_reporting(E_ERROR); // Hide PHP errors
header('Content-type:application/json;charset=utf-8'); // Set the content type to JSON
/**
* Configuration
*/
$tokens = array("set me"); // Your secret keys
$uploadDir = "./"; // The upload directory
$useRandomFileNames = false; // Use random file names instead of the original file name
@ -11,19 +15,15 @@ $fileNameLength = 8; // The length of the random file name
/**
* Check if the token is valid
*/
function checkToken($token) {
function checkToken($token): bool {
global $tokens;
if (in_array($token, $tokens)) {
return true;
} else {
return false;
}
return isset($token) && in_array($token, $tokens);
}
/**
* Generate a random string
*/
function generateRandomString($length = 10) {
function generateRandomString($length = 10): string {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
@ -37,64 +37,70 @@ function generateRandomString($length = 10) {
* Return a JSON response
*/
function returnJson($status, $message, $timeTaken = null) {
$json = array('status' => $status, 'url' => $message, 'processingTime' => round($timeTaken, 2) . "ms");
$json = array('status' => $status, 'url' => $message, 'processingTime' => round($timeTaken ?? 0, 2) . "ms");
echo(json_encode($json));
die();
}
$token = $_POST['secret']; // The provided secret key
$file = $_FILES['sharex']; // The uploaded file
try {
$token = $_POST['secret']; // The provided secret key
$file = $_FILES['sharex']; // The uploaded file
// Check if the token is valid
if (!checkToken($token)) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'Invalid or missing secret key', $timeTaken);
die();
}
// Check if the file was uploaded
if (!isset($file)) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'No file was uploaded', $timeTaken);
die();
}
$target_file = $_FILES["sharex"]["name"]; // File name
$fileType = pathinfo($target_file, PATHINFO_EXTENSION); // File extension (e.g. png, jpg, etc.)
// Check if the file already exists
if (file_exists($uploadDir . $target_file)) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'File already exists', $timeTaken);
die();
}
$shouldSave = true; // Whether or not the file should be saved
$finalName = $target_file; // The final name of the file
if ($useRandomFileNames) { // Generate a random file name if enabled
$finalName = generateRandomString($fileNameLength) . "." . $fileType;
}
// Convert the image to webp if applicable
if (in_array($fileType, array("png", "jpeg", "jpg"))) {
$image = imagecreatefromstring(file_get_contents($_FILES["sharex"]["tmp_name"]));
$webp_file = pathinfo($finalName, PATHINFO_FILENAME) . ".webp";
imagewebp($image, $webp_file, 90);
imagedestroy($image);
$finalName = $webp_file;
$shouldSave = false;
}
if ($shouldSave) {
// Move the file to the uploads folder
if (move_uploaded_file($_FILES["sharex"]["tmp_name"], $uploadDir . $finalName)) {
// Check if the token is valid
if (!checkToken($token)) {
$timeTaken = microtime(true) - $before;
returnJson('OK', $finalName, $timeTaken);
} else {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'File upload failed. Does the folder exist and did you CHMOD the folder?', $timeTaken);
returnJson('ERROR', 'Invalid or missing secret key', $timeTaken);
die();
}
// Check if the file was uploaded
if (!isset($file)) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'No file was uploaded', $timeTaken);
die();
}
$target_file = $_FILES["sharex"]["name"]; // File name
$fileType = pathinfo($target_file, PATHINFO_EXTENSION); // File extension (e.g. png, jpg, etc.)
// Check if the file already exists
if (file_exists($uploadDir . $target_file)) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'File already exists', $timeTaken);
die();
}
$shouldSave = true; // Whether or not the file should be saved
$finalName = $target_file; // The final name of the file
if ($useRandomFileNames) { // Generate a random file name if enabled
$finalName = generateRandomString($fileNameLength) . "." . $fileType;
}
// Convert the image to webp if applicable
if (in_array($fileType, array("png", "jpeg", "jpg"))) {
$image = imagecreatefromstring(file_get_contents($_FILES["sharex"]["tmp_name"]));
$webp_file = pathinfo($finalName, PATHINFO_FILENAME) . ".webp";
imagewebp($image, $webp_file, 90);
imagedestroy($image);
$finalName = $webp_file;
$shouldSave = false;
}
if ($shouldSave) {
// Move the file to the uploads folder
if (move_uploaded_file($_FILES["sharex"]["tmp_name"], $uploadDir . $finalName)) {
$timeTaken = microtime(true) - $before;
returnJson('OK', $finalName, $timeTaken);
} else {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'File upload failed. Does the folder exist and did you CHMOD the folder?', $timeTaken);
}
die();
}
returnJson('OK', $finalName, $timeTaken);
} catch (Exception $e) {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', $e->getMessage(), $timeTaken);
die();
}
returnJson('OK', $finalName, $timeTaken);
?>