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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.sdc.toscaparser.api.utils;
import org.onap.sdc.toscaparser.api.common.JToscaValidationIssue;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class UrlUtils {
private static final int HTTP_STATUS_OK = 200;
private UrlUtils() {
}
public static boolean validateUrl(String sUrl) {
// Validates whether the given path is a URL or not
// If the given path includes a scheme (http, https, ftp, ...) and a net
// location (a domain name such as www.github.com) it is validated as a URL
try {
URL url = new URL(sUrl);
if (url.getProtocol().equals("file")) {
return true;
}
return url.getAuthority() != null;
} catch (MalformedURLException e) {
return false;
}
}
public static String joinUrl(String sUrl, String relativePath) {
// Builds a new URL from the given URL and the relative path
// Example:
// url: http://www.githib.com/openstack/heat
// relative_path: heat-translator
// - joined: http://www.githib.com/openstack/heat-translator
if (!validateUrl(sUrl)) {
ThreadLocalsHolder.getCollector().appendValidationIssue(new JToscaValidationIssue("JE255", String.format(
"ValueError: The URL \"%s\" is malformed", sUrl)));
}
try {
URL base = new URL(sUrl);
return (new URL(base, relativePath)).toString();
} catch (MalformedURLException e) {
ThreadLocalsHolder.getCollector().appendValidationIssue(new JToscaValidationIssue("JE256", String.format(
"ValueError: Joining URL \"%s\" and relative path \"%s\" caused an exception", sUrl, relativePath)));
return sUrl;
}
}
public static boolean isUrlAccessible(String sUrl) {
// Validates whether the given URL is accessible
// Returns true if the get call returns a 200 response code.
// Otherwise, returns false.
try {
HttpURLConnection connection = (HttpURLConnection) new URL(sUrl).openConnection();
connection.setRequestMethod("HEAD");
int responseCode = connection.getResponseCode();
return responseCode == HTTP_STATUS_OK;
} catch (IOException e) {
return false;
}
}
}
/*python
from six.moves.urllib.parse import urljoin
from six.moves.urllib.parse import urlparse
from toscaparser.common.exception import ValidationIssueCollector
from toscaparser.utils.gettextutils import _
try:
# Python 3.x
import urllib.request as urllib2
except ImportError:
# Python 2.x
import urllib2
class UrlUtils(object):
@staticmethod
def validate_url(path):
"""Validates whether the given path is a URL or not.
If the given path includes a scheme (http, https, ftp, ...) and a net
location (a domain name such as www.github.com) it is validated as a
URL.
"""
parsed = urlparse(path)
if parsed.scheme == 'file':
# If the url uses the file scheme netloc will be ""
return True
else:
return bool(parsed.scheme) and bool(parsed.netloc)
@staticmethod
def join_url(url, relative_path):
"""Builds a new URL from the given URL and the relative path.
Example:
url: http://www.githib.com/openstack/heat
relative_path: heat-translator
- joined: http://www.githib.com/openstack/heat-translator
"""
if not UrlUtils.validate_url(url):
ValidationIssueCollector.appendException(
ValueError(_('"%s" is not a valid URL.') % url))
return urljoin(url, relative_path)
@staticmethod
def url_accessible(url):
"""Validates whether the given URL is accessible.
Returns true if the get call returns a 200 response code.
Otherwise, returns false.
"""
return urllib2.urlopen(url).getcode() == 200
*/
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