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/**
* Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite 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 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite 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 Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see .
*/
package org.evosuite.runtime.mock.java.net;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.Proxy;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.URLStreamHandlerFactory;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.evosuite.runtime.mock.StaticReplacementMock;
import org.evosuite.runtime.mock.java.io.MockIOException;
public class MockURL implements StaticReplacementMock{
@Override
public String getMockedClassName() {
return URL.class.getName();
}
private static URLStreamHandlerFactory factory;
private static Map handlers = new ConcurrentHashMap<>();
private static final Object streamHandlerLock = new Object();
public static void initStaticState(){
factory = null;
handlers.clear();
}
/**
* Provide a valid URL example for the http protocol.
*/
public static URL getHttpExample(){
try {
return URL("http://www.someFakeButWellFormedURL.org/fooExample");
} catch (MalformedURLException e) {
//should never happen
throw new RuntimeException(e);
}
}
// ----- constructors ------------
public static URL URL(String spec) throws MalformedURLException {
return URL(null, spec);
}
public static URL URL(URL context, String spec) throws MalformedURLException {
return URL(context, spec, null);
}
public static URL URL(String protocol, String host, String file)
throws MalformedURLException {
return URL(protocol, host, -1, file);
}
public static URL URL(String protocol, String host, int port, String file)
throws MalformedURLException{
return URL(protocol, host, port, file, null);
}
public static URL URL(String protocol, String host, int port, String file,
URLStreamHandler handler) throws MalformedURLException {
URL url = new URL(protocol,host,port,file,handler);
//we just need to deal with "handler" if it wasn't specified
if(handler == null){
/*
* if no handler is specified, then parent would load one based on
* protocol. As the function there is package level, we cannot modify/override it,
* and we still have to call a constructor.
* So, just replace the handler via reflection
*/
handler = getMockedURLStreamHandler(protocol);
URLUtil.setHandler(url, handler);
}
return url;
}
public static URL URL(URL context, String spec, URLStreamHandler handler)
throws MalformedURLException{
URL url = new URL(context,spec,handler);
//we just need to deal with "handler" if it wasn't specified
if(handler == null){
/*
* if no handler is specified, then parent would load one based on
* protocol. As the function there is package level, we cannot modify/override it,
* and we still have to call a constructor.
* So, just replace the handler via reflection
*/
handler = getMockedURLStreamHandler(url.getProtocol());
URLUtil.setHandler(url, handler);
//this is needed, as called on the handler in the constructor we are mocking
handleParseUrl(url,spec,handler);
}
return url;
}
private static void handleParseUrl(URL url, String spec, URLStreamHandler handler) throws MalformedURLException {
//code here is based on URL constructor
int i, limit, c;
int start = 0;
boolean aRef=false;
limit = spec.length();
while ((limit > 0) && (spec.charAt(limit - 1) <= ' ')) {
limit--; //eliminate trailing whitespace
}
while ((start < limit) && (spec.charAt(start) <= ' ')) {
start++; // eliminate leading whitespace
}
if (spec.regionMatches(true, start, "url:", 0, 4)) {
start += 4;
}
if (start < spec.length() && spec.charAt(start) == '#') {
aRef=true;
}
for (i = start; !aRef && (i < limit) &&
((c = spec.charAt(i)) != '/'); i++) {
if (c == ':') {
String s = spec.substring(start, i).toLowerCase();
if (isValidProtocol(s)) {
start = i + 1;
}
break;
}
}
i = spec.indexOf('#', start);
if (i >= 0) {
limit = i;
}
try {
URLStreamHandlerUtil.parseURL(handler, url, spec, start, limit);
} catch (InvocationTargetException e) {
throw new MalformedURLException(e.getCause().toString());
}
}
//From URL
private static boolean isValidProtocol(String protocol) {
int len = protocol.length();
if (len < 1)
return false;
char c = protocol.charAt(0);
if (!Character.isLetter(c))
return false;
for (int i = 1; i < len; i++) {
c = protocol.charAt(i);
if (!Character.isLetterOrDigit(c) && c != '.' && c != '+' &&
c != '-') {
return false;
}
}
return true;
}
// ---------------------
public static String getQuery(URL url) {
return url.getQuery();
}
public static String getPath(URL url) {
return url.getPath();
}
public static String getUserInfo(URL url) {
return url.getUserInfo();
}
public static String getAuthority(URL url) {
return url.getAuthority();
}
public static int getPort(URL url) {
return url.getPort();
}
public static int getDefaultPort(URL url) {
return url.getDefaultPort();
}
public static String getProtocol(URL url) {
return url.getProtocol();
}
public static String getHost(URL url) {
return url.getHost();
}
public static String getFile(URL url) {
return url.getFile();
}
public static String getRef(URL url) {
return url.getRef();
}
public static boolean equals(URL url, Object obj) {
return url.equals(obj);
}
public static synchronized int hashCode(URL url) {
return url.hashCode();
}
public static boolean sameFile(URL url, URL other) {
return url.sameFile(other);
}
public static String toString(URL url) {
return url.toString();
}
public static String toExternalForm(URL url) {
return url.toExternalForm();
}
public static URI toURI(URL url) throws URISyntaxException {
return new URI (url.toString());
}
public static URLConnection openConnection(URL url) throws java.io.IOException {
return url.openConnection();
}
public static URLConnection openConnection(URL url, Proxy proxy)
throws java.io.IOException {
if (proxy == null) {
throw new IllegalArgumentException("proxy can not be null");
}
// Create a copy of Proxy as a security measure
//Proxy p = proxy == Proxy.NO_PROXY ? Proxy.NO_PROXY : sun.net.ApplicationProxy.create(proxy);
try {
return URLStreamHandlerUtil.openConnection(URLUtil.getHandler(url), url, proxy);
} catch (InvocationTargetException e) {
throw new MockIOException(e.getCause());
}
}
public static InputStream openStream(URL url) throws java.io.IOException {
return url.openStream();
}
public static Object getContent(URL url) throws java.io.IOException {
return url.getContent();
}
public static Object getContent(URL url, Class[] classes)
throws java.io.IOException {
return url.getContent(classes);
}
public static void setURLStreamHandlerFactory(URLStreamHandlerFactory fac) {
synchronized (streamHandlerLock) {
if (factory != null) {
throw new Error("factory already defined");
}
handlers.clear();
factory = fac;
}
}
protected static URLStreamHandler getMockedURLStreamHandler(String protocol) throws MalformedURLException {
URLStreamHandler handler = (URLStreamHandler)handlers.get(protocol);
if (handler == null) {
// Use the factory (if any)
if (factory != null) {
handler = factory.createURLStreamHandler(protocol);
}
// create new instance
if (handler == null){
if(EvoURLStreamHandler.isValidProtocol(protocol)) {
handler = new EvoURLStreamHandler(protocol);
} else {
throw new MalformedURLException("unknown protocol: "+protocol);
}
}
handlers.put(protocol, handler);
}
return handler;
}
}
