init

1 files changed, 95 insertions, 0 deletions

diff --git a/upload.php b/upload.php
new file mode 100644
index 0000000..3c0c3a7
--- /dev/null
+++ b/upload.php
@@ -0,0 +1,95 @@
+<?php
+require(__DIR__ . '/.config.php');
+header('Content-Type: text/plain');
+
+if (isset($_GET['df'])) {
+	system("df -h --output=avail / | tail -1");
+	exit;
+}
+
+$c_t = strtolower($_SERVER['HTTP_CONTENT_TYPE'] ?? '');
+if ($c_t == 'multipart/form-data' || 0 === strpos($c_t, 'multipart/form-data;')) {
+	foreach (array_keys($_FILES['file']['size']) as $index) {
+		// remap the array to have the dimensions ordered properly.
+		$file = array();
+		foreach (array_keys($_FILES['file']) as $key) {
+			$file[$key] = $_FILES['file'][$key][$index];
+		}
+		// good, now $file['tmp_name'] exists for example, instead of $_FILES['file']['tmp_name'][$index]...
+
+		if (!is_uploaded_file($file['tmp_name'])) {
+			die_error("Not an uploaded file: $file[tmp_name]");
+		}
+		$hash = hash_file("sha512", $file['tmp_name']);
+		if (FALSE === $hash) {
+			die_error("Unable to hash uploaded file?!");
+		}
+		$filename = $hash . get_extension($file['name']);
+		$filepath = UPLOAD_DIR . '/' . $filename;
+		if (FALSE === move_uploaded_file($file['tmp_name'], $filepath)) {
+			die_error("Renaming uploaded file $file[tmp_name] to $filepath failed");
+		}
+		echo UPLOAD_URL . $filename . "\n";
+		send_notification("[hostfil.es] $_SERVER[REMOTE_ADDR] uploaded $file[full_path] $file[type] -> $filename");
+	}
+} else {
+	$in_fh = fopen('php://input', 'r');
+	$tmp_path = tempnam(UPLOAD_DIR, '.up-');
+	$out_fh = fopen($tmp_path, 'w');
+	if (FALSE === $out_fh) {
+		die_error("Couldn't open temporary file $tmp_path");
+	}
+	$hash = hash_init("sha512");
+	$size = 0;
+	while (!feof($in_fh) && FALSE !== ($data = fread($in_fh, 1024*1024))) {
+		hash_update($hash, $data);
+		$fwrite_status = fwrite($out_fh, $data);
+		if (FALSE === $fwrite_status || $fwrite_status < strlen($data)) {
+			die_error("Outputting to temporary file $tmp_path failed");
+		}
+		$size += $fwrite_status;
+	}
+	fclose($in_fh);
+	if (FALSE === fclose($out_fh)) {
+		die_error("Closing temporary file $tmp_path failed");
+	}
+	$filename = hash_final($hash) . get_extension($_SERVER['PATH_INFO']);
+	$filepath = UPLOAD_DIR . '/' . $filename;
+	if (file_exists($filepath)) {
+		unlink($tmp_path);
+	} else {
+		if (FALSE === rename($tmp_path, $filepath)) {
+			die_error("Renaming temporary file $tmp_path to $filepath failed");
+		}
+	}
+	echo UPLOAD_URL . $filename . "\n";
+	send_notification("[hostfil.es] $_SERVER[REMOTE_ADDR] uploaded $_SERVER[PATH_INFO] $c_t -> $filename");
+}
+
+
+function send_notification($note) {
+	$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
+	socket_connect($sock, gethostbyname(NOTIFICATION_ADDRESS), NOTIFICATION_PORT);
+	socket_write($sock, $note, strlen($note));
+	socket_close($sock);
+}
+
+
+function die_error($s) {
+	global $tmp_path, $filepath, $size;
+	header('Status: 500 Server Is 💩');
+	echo $s;
+	error_log($s);
+	@$debug = json_encode(array('s'=>$_SERVER, 'f'=>$_FILES, 't'=>$tmp_path, 'p'=>$filepath, 'size' => $size));
+	send_notification("[hostfil.es] $_SERVER[REMOTE_ADDR] ! $s\n$debug");
+	exit;
+}
+
+
+function get_extension($file) {
+	$ext = strrchr($file, '.');
+	if (FALSE === $ext) {
+		return '';
+	}
+	return $ext;
+}