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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
***/
#include <stdbool.h>
#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);
}
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