From 49cf4170d0b586551527ebf4297f8a3fe6bd71a3 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Tue, 27 Oct 2015 00:41:29 +0100 Subject: util-lib: move web-related calls into web-util.[ch] --- src/basic/web-util.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/basic/web-util.c (limited to 'src/basic/web-util.c') diff --git a/src/basic/web-util.c b/src/basic/web-util.c new file mode 100644 index 0000000000..68ec04021b --- /dev/null +++ b/src/basic/web-util.c @@ -0,0 +1,78 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include + +#include "string-util.h" +#include "utf8.h" +#include "web-util.h" + +bool http_etag_is_valid(const char *etag) { + if (isempty(etag)) + return false; + + if (!endswith(etag, "\"")) + return false; + + if (!startswith(etag, "\"") && !startswith(etag, "W/\"")) + return false; + + return true; +} + +bool http_url_is_valid(const char *url) { + const char *p; + + if (isempty(url)) + return false; + + p = startswith(url, "http://"); + if (!p) + p = startswith(url, "https://"); + if (!p) + return false; + + if (isempty(p)) + return false; + + return ascii_is_valid(p); +} + +bool documentation_url_is_valid(const char *url) { + const char *p; + + if (isempty(url)) + return false; + + if (http_url_is_valid(url)) + return true; + + p = startswith(url, "file:/"); + if (!p) + p = startswith(url, "info:"); + if (!p) + p = startswith(url, "man:"); + + if (isempty(p)) + return false; + + return ascii_is_valid(p); +} -- cgit v1.2.3-54-g00ecf