FB Login

FbLogin.java

package cz.osladil.fblogin;

import com.gargoylesoftware.htmlunit.WebClient;
import com.gargoylesoftware.htmlunit.WebWindow;
import com.gargoylesoftware.htmlunit.html.HtmlElement;
import com.gargoylesoftware.htmlunit.html.HtmlPage;
import com.gargoylesoftware.htmlunit.html.HtmlPasswordInput;
import com.gargoylesoftware.htmlunit.html.HtmlSubmitInput;
import com.gargoylesoftware.htmlunit.html.HtmlTextInput;
import com.gargoylesoftware.htmlunit.util.Cookie;
import java.io.IOException;
import java.util.Set;

public class FbLogin {
	private static Set<Cookie> facebookLogin(String username, String password) {
		try {
			WebClient webClient = new WebClient();
			HtmlPage page = webClient.getPage("http://www.facebook.com");
			WebWindow window = page.getEnclosingWindow();

			HtmlTextInput usernameInput = null;
			HtmlPasswordInput passwordInput = null;
			HtmlSubmitInput submitButton = null;

			for (HtmlElement el: page.getHtmlElementById("login_form").getHtmlElementsByTagName("input")) {
				if (el instanceof HtmlTextInput) {
					usernameInput = (HtmlTextInput)el;
				}
				if (el instanceof HtmlPasswordInput) {
					passwordInput = (HtmlPasswordInput)el;
				}
				if (el instanceof HtmlSubmitInput) {
					submitButton = (HtmlSubmitInput)el;
				}
			}

			usernameInput.setValueAttribute(username);
			passwordInput.setValueAttribute(password);
			submitButton.click();
			
			if (window.getEnclosedPage().getUrl().toString().contains("welcome")) {
				return webClient.getCookieManager().getCookies();
			}
		} catch (RuntimeException | IOException ex) {
			// something went wrong, just fall through
		}
		
		return null;
	}
	
	public static void main(String[] args) throws IOException {
		Set<Cookie> cookies = facebookLogin("[email protected]", "HentenOny^2");
		System.out.println("Login " + (cookies != null ? "succeded." : "failed."));
	}
	
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>cz.osladil</groupId>
    <artifactId>fblogin</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
    </properties>
	<dependencies>
		<dependency>
			<groupId>net.sourceforge.htmlunit</groupId>
			<artifactId>htmlunit</artifactId>
			<version>2.15</version>
		</dependency>
	</dependencies>
</project>