ShareX Uploader (PHP)

sharex_uploader.sxcu

{
  "Name": "example.com",
  "DestinationType": "None",
  "RequestType": "POST",
  "RequestURL": "http://example.com/upload.php",
  "FileFormName": "upload",
  "Arguments": {
    "password": "password"
  },
  "ResponseType": "Text"
}

upload.php

<?php
$config = array(
	'password' => "password", // A password to prevent other uploads.
	'folders' => array(
		'images' => "images", // folder for image/*. Change the second "images" to what you want
		'videos' => "videos", // folder for video/*. Change the second "videos" to what you want
		'files' => "files" // folder for */*. Change the second "files" to what you want
	),
	'banned_exts' => array(
		".php",
		".bat",
		".exe"
	),
	'output_url' => "http://example.com/x", // The url, where you can access the parent directories of the defined folders.
	'redirect_url' => "http://example.com" // The url, where direct access will be redirected to.
);

foreach ($config["folders"] as $folder) {
	if (!file_exists($folder))
		mkdir($folder, 0777, true);
}

if (isset($_POST['password']) && $_POST['password'] == $config['password']) {
	$file = $_FILES["upload"];

	foreach ($config["banned_exts"] as $ext) {
		if (endsWith($file["name"], $ext)) {
			die("File extension is not allowed!");
		}
	}

	$folder = "files";
	if (startsWith($file["type"], "video/")) {
		$folder = "videos";
	} else if (startsWith($file["type"], "image/")) {
		$folder = "images";
	}

	$folderPath = $config['folders'][$folder];
	
	// prevent breaking out of desired folders
	$fileName = str_replace('/', '_', $file['name']);

	$target = __DIR__ . "/" . $folderPath . (strlen($folderPath) > 0 ? "/" : "") . $fileName;
	$url = $config["output_url"] . "/" . $folderPath . (strlen($folderPath) > 0 ? "/" : "") . $fileName;
	$number = 1;
	if (file_exists($target)) {
		$extensionPosition = strrpos($target, ".");
		$extensionPositionUrl = strrpos($url, ".");

		$extension = substr($target, $extensionPosition);

		$targetWithoutExtension = substr($target, 0, $extensionPosition);
		$urlWithoutExtension = substr($url, 0, $extensionPositionUrl);

		$i = 1;
		while (file_exists($target)) {
			$target = $targetWithoutExtension . "_" . $i . $extension;
			$url = $urlWithoutExtension . "_" . $i . $extension;
			$i++;
		}
	}
	if (move_uploaded_file($file['tmp_name'], $target)) {
		die($url);
	}
	die("There was a problem while saving the file. Check permissions on target folders!");
}
header("Location: " . $config["redirect_url"]);

function startsWith($haystack, $needle)
{
	return substr($haystack, 0, strlen($needle)) == $needle;
}

function endsWith($haystack, $needle)
{
	return substr($haystack, 0 - strlen($needle)) == $needle;
}

/*
   Copyright 2017 Sefa Eyeoglu

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

thank god I found this in your gist. thank you so much!

@Joshua2504 there is an updated version of this here: https://gitlab.com/Scrumplex/ScreenshotBASH-Endpoint-PHP