Added proxy functionality
Omertron
14 years ago
parent
7c6238d749
commit
7de94e43a7
@ -0,0 +1,261 @@
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/*
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* Copyright (c) 2004-2012 YAMJ Members
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* http://code.google.com/p/moviejukebox/people/list
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*
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* Web: http://code.google.com/p/moviejukebox/
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*
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* This software is licensed under a Creative Commons License
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* See this page: http://code.google.com/p/moviejukebox/wiki/License
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*
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* For any reuse or distribution, you must make clear to others the
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* license terms of this work.
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*/
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package com.moviejukebox.themoviedb.tools;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.StringWriter;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLConnection;
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import java.nio.charset.Charset;
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import java.nio.charset.UnsupportedCharsetException;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.apache.commons.codec.binary.Base64;
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/**
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* Web browser with simple cookies support
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*/
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public final class WebBrowser {
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private static Map<String, String> browserProperties = new HashMap<String, String>();
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private static Map<String, Map<String, String>> cookies = new HashMap<String, Map<String, String>>();
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private static String proxyHost = null;
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private static String proxyPort = null;
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private static String proxyUsername = null;
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private static String proxyPassword = null;
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private static String proxyEncodedPassword = null;
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private static int webTimeoutConnect = 25000; // 25 second timeout
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private static int webTimeoutRead = 90000; // 90 second timeout
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// Hide the constructor
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protected WebBrowser() {
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// prevents calls from subclass
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throw new UnsupportedOperationException();
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}
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/**
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* Populate the browser properties
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*/
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private static void populateBrowserProperties() {
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if (browserProperties.isEmpty()) {
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browserProperties.put("User-Agent", "Mozilla/5.25 Netscape/5.0 (Windows; I; Win95)");
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}
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}
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public static String request(String url) throws IOException {
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return request(new URL(url));
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}
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public static URLConnection openProxiedConnection(URL url) throws IOException {
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if (proxyHost != null) {
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System.getProperties().put("proxySet", "true");
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System.getProperties().put("proxyHost", proxyHost);
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System.getProperties().put("proxyPort", proxyPort);
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}
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URLConnection cnx = url.openConnection();
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if (proxyUsername != null) {
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cnx.setRequestProperty("Proxy-Authorization", proxyEncodedPassword);
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}
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return cnx;
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}
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public static String request(URL url) throws IOException {
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StringWriter content = null;
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try {
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content = new StringWriter();
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BufferedReader in = null;
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URLConnection cnx = null;
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try {
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cnx = openProxiedConnection(url);
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sendHeader(cnx);
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readHeader(cnx);
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in = new BufferedReader(new InputStreamReader(cnx.getInputStream(), getCharset(cnx)));
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String line;
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while ((line = in.readLine()) != null) {
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content.write(line);
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}
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} finally {
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if (in != null) {
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in.close();
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}
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if (cnx != null && cnx instanceof HttpURLConnection) {
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((HttpURLConnection) cnx).disconnect();
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}
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}
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return content.toString();
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} finally {
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if (content != null) {
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content.close();
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}
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}
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}
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private static void sendHeader(URLConnection cnx) {
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populateBrowserProperties();
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// send browser properties
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for (Map.Entry<String, String> browserProperty : browserProperties.entrySet()) {
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cnx.setRequestProperty(browserProperty.getKey(), browserProperty.getValue());
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}
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// send cookies
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String cookieHeader = createCookieHeader(cnx);
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if (!cookieHeader.isEmpty()) {
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cnx.setRequestProperty("Cookie", cookieHeader);
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}
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}
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private static String createCookieHeader(URLConnection cnx) {
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String host = cnx.getURL().getHost();
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StringBuilder cookiesHeader = new StringBuilder();
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for (Map.Entry<String, Map<String, String>> domainCookies : cookies.entrySet()) {
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if (host.endsWith(domainCookies.getKey())) {
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for (Map.Entry<String, String> cookie : domainCookies.getValue().entrySet()) {
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cookiesHeader.append(cookie.getKey());
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cookiesHeader.append("=");
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cookiesHeader.append(cookie.getValue());
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cookiesHeader.append(";");
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}
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}
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}
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if (cookiesHeader.length() > 0) {
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// remove last ; char
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cookiesHeader.deleteCharAt(cookiesHeader.length() - 1);
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}
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return cookiesHeader.toString();
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}
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private static void readHeader(URLConnection cnx) {
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// read new cookies and update our cookies
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for (Map.Entry<String, List<String>> header : cnx.getHeaderFields().entrySet()) {
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if ("Set-Cookie".equals(header.getKey())) {
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for (String cookieHeader : header.getValue()) {
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String[] cookieElements = cookieHeader.split(" *; *");
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if (cookieElements.length >= 1) {
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String[] firstElem = cookieElements[0].split(" *= *");
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String cookieName = firstElem[0];
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String cookieValue = firstElem.length > 1 ? firstElem[1] : null;
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String cookieDomain = null;
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// find cookie domain
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for (int i = 1; i < cookieElements.length; i++) {
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String[] cookieElement = cookieElements[i].split(" *= *");
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if ("domain".equals(cookieElement[0])) {
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cookieDomain = cookieElement.length > 1 ? cookieElement[1] : null;
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break;
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}
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}
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if (cookieDomain == null) {
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// if domain isn't set take current host
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cookieDomain = cnx.getURL().getHost();
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}
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Map<String, String> domainCookies = cookies.get(cookieDomain);
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if (domainCookies == null) {
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domainCookies = new HashMap<String, String>();
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cookies.put(cookieDomain, domainCookies);
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}
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// add or replace cookie
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domainCookies.put(cookieName, cookieValue);
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}
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}
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}
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}
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}
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private static Charset getCharset(URLConnection cnx) {
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Charset charset = null;
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// content type will be string like "text/html; charset=UTF-8" or "text/html"
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String contentType = cnx.getContentType();
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if (contentType != null) {
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// changed 'charset' to 'harset' in regexp because some sites send 'Charset'
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Matcher m = Pattern.compile("harset *=[ '\"]*([^ ;'\"]+)[ ;'\"]*").matcher(contentType);
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if (m.find()) {
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String encoding = m.group(1);
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try {
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charset = Charset.forName(encoding);
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} catch (UnsupportedCharsetException e) {
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// there will be used default charset
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}
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}
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}
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if (charset == null) {
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charset = Charset.defaultCharset();
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}
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return charset;
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}
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public static String getProxyHost() {
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return proxyHost;
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}
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public static void setProxyHost(String myProxyHost) {
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WebBrowser.proxyHost = myProxyHost;
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}
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public static String getProxyPort() {
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return proxyPort;
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}
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public static void setProxyPort(String myProxyPort) {
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WebBrowser.proxyPort = myProxyPort;
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}
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public static String getProxyUsername() {
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return proxyUsername;
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}
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public static void setProxyUsername(String myProxyUsername) {
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WebBrowser.proxyUsername = myProxyUsername;
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}
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public static String getProxyPassword() {
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return proxyPassword;
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}
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public static void setProxyPassword(String myProxyPassword) {
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WebBrowser.proxyPassword = myProxyPassword;
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if (proxyUsername != null) {
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proxyEncodedPassword = proxyUsername + ":" + proxyPassword;
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proxyEncodedPassword = "Basic " + new String(Base64.encodeBase64((proxyUsername + ":" + proxyPassword).getBytes()));
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}
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}
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public static int getWebTimeoutConnect() {
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return webTimeoutConnect;
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}
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public static int getWebTimeoutRead() {
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return webTimeoutRead;
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}
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public static void setWebTimeoutConnect(int webTimeoutConnect) {
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WebBrowser.webTimeoutConnect = webTimeoutConnect;
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}
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public static void setWebTimeoutRead(int webTimeoutRead) {
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WebBrowser.webTimeoutRead = webTimeoutRead;
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}
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}
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