sharex-php-uploader/upload.php

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<?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
error_reporting(E_ERROR); // Hide PHP errors
$tokens = array("set me"); // Your secret keys
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$uploadDir = "./"; // The upload directory
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/**
* Check if the token is valid
*/
function checkToken($token) {
global $tokens;
if (in_array($token, $tokens)) {
return true;
} else {
return false;
}
}
/**
* Return a JSON response
*/
function returnJson($status, $message, $timeTaken = null) {
$json = array('status' => $status, 'url' => $message, 'processingTime' => round($timeTaken, 2) . "ms");
echo(json_encode($json));
die();
}
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$token = $_POST['secret']; // The provided secret key
$file = $_FILES['sharex']; // The uploaded file
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// Check if the token is valid
if (!checkToken($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', $timeTaken);
die();
}
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if (in_array($fileType, array("png", "jpeg", "jpg"))) {
// Convert to webp
$image = imagecreatefromstring(file_get_contents($_FILES["sharex"]["tmp_name"]));
$webp_file = pathinfo($target_file, PATHINFO_FILENAME) . ".webp";
imagewebp($image, $webp_file, 90);
imagedestroy($image);
$target_file = $webp_file;
}
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// Move the file to the uploads folder
if (move_uploaded_file($_FILES["sharex"]["tmp_name"], $uploadDir . $target_file)) {
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$timeTaken = microtime(true) - $before;
returnJson('OK', $target_file, $timeTaken);
} else {
$timeTaken = microtime(true) - $before;
returnJson('ERROR', 'File upload failed. Does the folder exist and did you CHMOD the folder?', $timeTaken);
}
?>