Приложение Android Studio для входа на сайт - PullRequest
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Приложение Android Studio для входа на сайт

0 голосов
/ 05 октября 2018

Я разрабатываю приложение для Android, и пользователь должен сначала ввести имя пользователя и пароль.После ввода этой информации, приложение должно автоматически войти на сайт. (Instagram) Однако, с моими кодами это невозможно.Не могли бы вы помочь мне с этим?Всем спасибо !Примечание: я не хочу использовать Instagram API, потому что API больше не нужен.

Мои коды: 

package com.example.administrator.instadeneme;


import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.net.CookieHandler;
import java.net.CookieManager;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;

import javax.net.ssl.HttpsURLConnection;

public class HttpUrlConnectionExample  {
private List<String> cookies;
private HttpsURLConnection conn;

private final String USER_AGENT = "Mozilla/5.0";

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

}

public void sendPost(String url, String postParams) throws Exception {

    URL obj = new URL(url);
    conn = (HttpsURLConnection) obj.openConnection();

    // Acts like a browser
    conn.setUseCaches(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Host", "www.instagram.com");
    conn.setRequestProperty("User-Agent", USER_AGENT);
    conn.setRequestProperty("Accept",
    "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
    conn.setRequestProperty("Accept-Language", "tr-TR,tr;q=0.9,en- 
    US;q=0.8,en;q=0.7");
    for (String cookie : this.cookies) {
        conn.addRequestProperty("Cookie", cookie.split(";", 1)[0]);
    }
    conn.setRequestProperty("Connection", "keep-alive");
    conn.setRequestProperty("Referer", 
    "https://www.instagram.com/accounts/login/?force_classic_login");
    conn.setRequestProperty("Content-Type", "application/x-www-form- 
    urlencoded");
    conn.setRequestProperty("Content-Length", 
Integer.toString(postParams.length()));

    conn.setDoOutput(true);
    conn.setDoInput(true);

    // Send post request
    DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
    wr.writeBytes(postParams);
    wr.flush();
    wr.close();

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

    BufferedReader in =
            new BufferedReader(new 
InputStreamReader(conn.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();
    // System.out.println(response.toString());

}

public String GetPageContent(String url) throws Exception {

    URL obj = new URL(url);
    conn = (HttpsURLConnection) obj.openConnection();

    // default is GET
    conn.setRequestMethod("GET");

    conn.setUseCaches(false);

    // act like a browser
    conn.setRequestProperty("User-Agent", USER_AGENT);
    conn.setRequestProperty("Accept",
    "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
    conn.setRequestProperty("Accept-Language", "tr-TR,tr;q=0.9,en- 
  US;q=0.8,en;q=0.7");
    if (cookies != null) {
        for (String cookie : this.cookies) {
            conn.addRequestProperty("Cookie", cookie.split(";", 1)[0]);
        }
    }
    int responseCode = conn.getResponseCode();
    System.out.println("\nSending 'GET' request to URL : " + url);
    System.out.println("Response Code : " + responseCode);

    BufferedReader in =
            new BufferedReader(new 
InputStreamReader(conn.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();

    // Get the response cookies
    setCookies(conn.getHeaderFields().get("Set-Cookie"));

    return response.toString();

}

public String getFormParams(String html, String username, String password)
        throws IOException {

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


   Document doc = Jsoup.parse(html);
    //Document doc=Jsoup.connect("https://www.instagram.com/accounts/login/? 
force_classic_login").get();
    // Google form id



    Element loginform = doc.getElementById("login-form");
    Elements inputElements = loginform.getElementsByTag("input");
    List<String> paramList = new ArrayList<String>();
    for (Element inputElement : inputElements) {
        String key = inputElement.attr("name");
        String value = inputElement.attr("value");

        if (key.equals("id_username"))
            value = username;
        else if (key.equals("id_password"))
            value = password;
        paramList.add(key + "=" + URLEncoder.encode(value, "UTF-8"));
    }

    // build parameters list
    StringBuilder result = new StringBuilder();
    for (String param : paramList) {
        if (result.length() == 0) {
            result.append(param);
        } else {
            result.append("&" + param);
        }
    }
    return result.toString();
}

public List<String> getCookies() {
    return cookies;
}

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

Основная активность: 

package com.example.administrator.instadeneme;

import android.app.ProgressDialog;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.AsyncTask;
import android.os.StrictMode;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.EditText;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.CookieHandler;
import java.net.CookieManager;


public class MainActivity extends AppCompatActivity
{
Button butonCon;
EditText textUserName;
EditText textPassword;
WebView web;
WebViewClient mWeb;


@Override
protected void onCreate(Bundle savedInstanceState) {
    StrictMode.ThreadPolicy policy = new 
StrictMode.ThreadPolicy.Builder().permitAll().build();
    StrictMode.setThreadPolicy(policy);

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    web=findViewById(R.id.webIns);
    textUserName=findViewById(R.id.et_kullaniciAdi);
    textPassword=findViewById(R.id.et_sifre);
    butonCon=findViewById(R.id.bt_connect);
    butonCon.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v)
        {
            String url = "https://www.instagram.com/accounts/login/? 
force_classic_login";
            String instagram = "https://www.instagram.com/";

            HttpUrlConnectionExample http = new HttpUrlConnectionExample();

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

            // 1. Send a "GET" request, so that you can extract the form's 
data.
            String page = null;
            try {
                page = http.GetPageContent(url);
            } catch (Exception e) {
                e.printStackTrace();
            }
            String postParams = null;
            try {
                postParams = http.getFormParams(page,textUserName.getText().
toString(),textPassword.getText().toString());

            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

            // 2. Construct above post's content and then send a POST 
request for
            // authentication
            try {
                http.sendPost(url, postParams);
            } catch (Exception e) {
                e.printStackTrace();
            }

            // 3. success then go to gmail.
            String result = null;
            try {
                result = http.GetPageContent(instagram);
            } catch (Exception e) {
                e.printStackTrace();
            }
            System.out.println(result);

        }
    });

}
}
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