Redirect + trackers + php upload api + binary tree search + uuids

api/v1/contribute/index.php

@@ -0,0 +1,95 @@
+<?php
+$proj_root = dirname(dirname(dirname(__DIR__)));
+
+function is_valid_bundle($bundle_id) {
+	return preg_match('/^[A-Za-z0-9\.\-]{1,155}$/', $bundle_id);
+}
+
+function normalize_bundle($bundle_id) {
+	$valid = is_valid_bundle($bundle_id);
+	return [$valid ? $bundle_id : '_manually', $valid];
+}
+
+function path_for($parts) { return implode(DIRECTORY_SEPARATOR, $parts); }
+
+function mark_needs_update($norm_bundle) {
+	global $proj_root;
+	$pth = path_for([$proj_root, 'data', '_in']);
+	@mkdir($pth, 0755, true);
+	file_put_contents(path_for([$pth, 'in_'.$norm_bundle]), '.');
+}
+
+function random_filename($norm_bundle) {
+	global $proj_root;
+	$dir = path_for(array_merge([$proj_root, 'data'], explode('.', $norm_bundle)));
+	@mkdir($dir, 0755, true);
+	do {
+		$key = '';
+		$keys = array_merge(range(0, 9), range('a', 'z'));
+		for ($i = 0; $i < 48; $i++) {
+			$key .= $keys[array_rand($keys)];
+		}
+		$full = path_for([$dir, "id_$key.json"]);
+	} while (file_exists($full));
+	return [$full, $key];
+}
+
+// Generate response
+
+function make_output($msg, $url=null, $when=null, $key=null) {
+	$obj = [ 'v' => 1, 'status' => $msg ];
+	if ($url) {
+		$obj['url'] = $url;
+		if ($when) {
+			$obj['when'] = $when;  # date('Y-m-d H:i:s', )
+		}
+	}
+	if ($key) { $obj['key'] = $key; }
+	echo json_encode($obj);
+}
+
+function response_success($bundle_id, $key) {
+	# check valid bundle id, same regex as in `common_lib.py`
+	if ($bundle_id) {
+		$url = 'https://appchk.de/app/'.$bundle_id.'/index.html';
+	}
+	# next update will be in ... X seconds (up to 1 min)
+	make_output('ok', $url, ceil(time()/120)*120 - time(), $key);
+}
+
+function response_fail($error) {
+	http_response_code(400);
+	make_output($error);
+}
+
+// MAIN
+
+$err = null;
+$content = file_get_contents('php://input');
+// OR: disable json check and store file immediately?
+$json = json_decode($content);
+if ($json->v == 1
+	&& $json->duration > 0
+	&& !is_null($json->{'app-bundle'})
+	&& !is_null($json->logs))
+{
+	[$bundle_id, $valid] = normalize_bundle($json->{'app-bundle'});
+	[$filename, $key] = random_filename($bundle_id);
+	$fp = @fopen($filename, 'w');
+	if ($fp) {
+		@fwrite($fp, $content);
+		@fclose($fp);
+		mark_needs_update($bundle_id);
+	} else {
+		$err = 'could not save.';
+	}
+} else {
+	$err = 'wrong json format.';
+}
+
+if ($err) {
+	response_fail($err);
+} else {
+	response_success($valid ? $bundle_id : null, $key);
+}
+?>