I want to create a java application that automatically logs into a website and does stuff. I'm testing it on my localhost. I'm actually totally new at this and I'm trying to get the concept from http://www.mkyong.com/java/how-to-automate-login-a-website-java-example/ and modifying the code to actually work for my localhost.
package random;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
public class InternetAutomationPost {
List<String> cookies;
public void setCookies(List<String> cookies) {
this.cookies = cookies;
}
public List<String> getCookies() {
return cookies;
}
private String requestWebPage(String address) {
try {
URL url = new URL(address);
HttpURLConnection con = (HttpURLConnection)url.openConnection();
// Don't use cache. Get a fresh copy.
con.setUseCaches(false);
// Use post or get.
// And default is get.
con.setRequestMethod("GET");
// Mimic a web browser.
con.addRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
con.addRequestProperty("Accept-Encoding", "gzip,deflate,sdch");
con.addRequestProperty("Accept-Language", "en-US,en;q=0.8");
con.addRequestProperty("Connection", "keep-alive");
con.addRequestProperty("User-Agent", "Mozilla/5.0");
if(cookies != null) {
con.addRequestProperty("Cache-Control", "max-age=0");
for (String cookie : this.cookies) {
System.out.print(cookie.split(";", 1)[0]);
con.addRequestProperty("Cookie", cookie.split(";", 1)[0]);
}
}
int responseCode = con.getResponseCode();
System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response Code : " + responseCode);
BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();
while( (inputLine = br.readLine()) != null) {
response.append(inputLine);
}
br.close();
// Get the response cookies
setCookies(con.getHeaderFields().get("Set-Cookie"));
return response.toString();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
private String parsePage(String page) {
Document doc;
try {
doc = Jsoup.parse(page);
Elements form = doc.getElementsByAttributeValue("action", "login.php");
List<String> paramList = new ArrayList<String>();
for(Element loginForm : form) {
System.out.println(loginForm.html());
Elements Input = loginForm.getElementsByTag("input");
for(Element input : Input) {
String name = input.attr("name");
String value = input.attr("value");
if(name.equals("email")) {
value = "admin@admin.com";
} else if(name.equals("password")) {
value = "password";
} else if(name.equals("")) {
continue;
}
paramList.add(name + "=" + URLEncoder.encode(value, "UTF-8"));
}
}
StringBuilder params = new StringBuilder();
for(String values : paramList) {
if(params.length() == 0) {
params.append(values);
} else {
params.append("&" + values);
}
}
System.out.println("Params: " + params);
return params.toString();
} catch (IOException e) {
e.printStackTrace();
}
return "";
}
private void sendPostLogin(String location, String params) {
try {
URL url = new URL(location);
HttpURLConnection con = (HttpURLConnection) url.openConnection();
// Don't use cache. Get a fresh copy.
con.setUseCaches(false);
// Use post or get. We use post this time.
con.setRequestMethod("POST");
// Mimic a web browser.
con.addRequestProperty("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
con.addRequestProperty("Accept-Encoding", "gzip,deflate,sdch");
con.addRequestProperty("Accept-Language", "en-US,en;q=0.8");
con.addRequestProperty("Connection", "keep-alive");
con.addRequestProperty("User-Agent", "Mozilla/5.0");
if(cookies != null) {
con.addRequestProperty("Cache-Control", "max-age=0");
for (String cookie : this.cookies) {
con.addRequestProperty("Cookie", cookie.split(";", 1)[0]);
}
}
con.addRequestProperty("Content-Length", Integer.toString(params.length()));
con.addRequestProperty("Content-Type", "application/x-www-form-urlencoded");
con.addRequestProperty("Host", "localhost");
con.addRequestProperty("Origin", "http://localhost");
con.addRequestProperty("Referrer", "http://localhost/social/index.php");
con.setDoOutput(true);
con.setDoInput(true);
// Write the parameters. Send post request.
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(params);
wr.flush();
wr.close();
int responseCode = con.getResponseCode();
System.out.println("\nSending 'POST' request to URL : " + url);
System.out.println("Post parameters : " + params);
System.out.println("Response Code : " + responseCode);
BufferedReader br = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder response = new StringBuilder();
while( (inputLine = br.readLine()) != null) {
response.append(inputLine);
}
br.close();
// Get the response cookies
setCookies(con.getHeaderFields().get("Set-Cookie"));
System.out.println(response.toString());
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* @param args
*/
public static void main(String[] args) {
InternetAutomationPost object = new InternetAutomationPost();
String page = object.requestWebPage("http://localhost/social");
String params = object.parsePage(page);
object.sendPostLogin("http://localhost/social/index.php", params);
}
}
EDIT: Found out why it sent HTTP response code: 413.
con.addRequestProperty("Content-Length:", Integer.toString(params.length()));
should have been:
con.addRequestProperty("Content-Length", Integer.toString(params.length()));
There was a stray ':'. I've fixed it now.
BUT, still my code doesn't actually login and I still need help . I have put my full program here now.
I might be wrong but I'm thinking that the params aren't actually getting written to the con.getOutputStream() in the code here:
DataOutputStream wr = new DataOutputStream(con.getOutputStream());
wr.writeBytes(params);
wr.flush();
wr.close();
