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http://172.16.1.6:8080/webopac/html/checkouts

Link to Apache HttpClient -Automate login gmail

https://www.mkyong.com/java/apache-httpclient-examples/

Apache HttpClient – Automate login Gmail

// A full example to automate login to Gmail.

//1.Send a GET request to get login form. //2.Uses jsoup html parser to grab form inputs. //3.Constructs parameters and make a POST request for authentication. //4.Send another GET request to Gmail.

import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.CookieHandler; import java.net.CookieManager; import java.util.ArrayList; import java.util.List;

import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.message.BasicNameValuePair; import org.jsoup.Jsoup; import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.select.Elements;

public class HttpCilentExample {

private String cookies; private HttpClient client = HttpClientBuilder.create().build(); private final String USER_AGENT = "Mozilla/5.0";

public static void main(String[] args) throws Exception {

String url = "https://accounts.google.com/ServiceLoginAuth";
String gmail = "https://mail.google.com/mail/";

// make sure cookies is turn on
CookieHandler.setDefault(new CookieManager());

HttpCilentExample http = new HttpCilentExample();

String page = http.GetPageContent(url);

List<NameValuePair> postParams =
           http.getFormParams(page, "username","password");

http.sendPost(url, postParams);

String result = http.GetPageContent(gmail);
System.out.println(result);

System.out.println("Done");

}

private void sendPost(String url, List postParams) throws Exception {

HttpPost post = new HttpPost(url);

// add header
post.setHeader("Host", "accounts.google.com");
post.setHeader("User-Agent", USER_AGENT);
post.setHeader("Accept",
         "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
post.setHeader("Accept-Language", "en-US,en;q=0.5");
post.setHeader("Cookie", getCookies());
post.setHeader("Connection", "keep-alive");
post.setHeader("Referer", "https://accounts.google.com/ServiceLoginAuth");
post.setHeader("Content-Type", "application/x-www-form-urlencoded");

post.setEntity(new UrlEncodedFormEntity(postParams));

HttpResponse response = client.execute(post);

int responseCode = response.getStatusLine().getStatusCode();

System.out.println("\nSending 'POST' request to URL : " + url);
System.out.println("Post parameters : " + postParams);
System.out.println("Response Code : " + responseCode);

BufferedReader rd = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent()));

StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
	result.append(line);
}

// System.out.println(result.toString());

}

private String GetPageContent(String url) throws Exception {

HttpGet request = new HttpGet(url);

request.setHeader("User-Agent", USER_AGENT);
request.setHeader("Accept",
	"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
request.setHeader("Accept-Language", "en-US,en;q=0.5");

HttpResponse response = client.execute(request);
int responseCode = response.getStatusLine().getStatusCode();

System.out.println("\nSending 'GET' request to URL : " + url);
System.out.println("Response Code : " + responseCode);

BufferedReader rd = new BufferedReader(
            new InputStreamReader(response.getEntity().getContent()));

StringBuffer result = new StringBuffer();
String line = "";
while ((line = rd.readLine()) != null) {
	result.append(line);
}

// set cookies
setCookies(response.getFirstHeader("Set-Cookie") == null ? "" :
                 response.getFirstHeader("Set-Cookie").toString());

return result.toString();

}

public List getFormParams( String html, String username, String password) throws UnsupportedEncodingException {

System.out.println("Extracting form's data...");

Document doc = Jsoup.parse(html);

// Google form id
Element loginform = doc.getElementById("gaia_loginform");
Elements inputElements = loginform.getElementsByTag("input");

List<NameValuePair> paramList = new ArrayList<NameValuePair>();

for (Element inputElement : inputElements) {
	String key = inputElement.attr("name");
	String value = inputElement.attr("value");

	if (key.equals("Email"))
		value = username;
	else if (key.equals("Passwd"))
		value = password;

	paramList.add(new BasicNameValuePair(key, value));

}

return paramList;

}

public String getCookies() { return cookies; }

public void setCookies(String cookies) { this.cookies = cookies; }

}