C2DM 소스(안드로이드에서 푸시 서버를 사용하자.)

C2DM이란 안드로이드 2.2 프로요 버전 부터 푸시 서버를 제공해 주는 기능이다.
이하 소스는 http://www.androidside.com/bbs/board.php?bo_table=B46&wr_id=14705
에서 소스를 받아 수정 하였다.
푸시서버를 사용하기 위해서는 다음과 같은 절차가 필요하다.
  1. 구글에 해당 서버 사용 인증 요청
    http://code.google.com/intl/ko-KR/android/c2dm/signup.html에서 등록 요청
  2. 메일로 승인 확인
  3. 소스 코딩
C2dm_BroadcastReceiver.java
package com.coolsharp.push;

 

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.util.Log;

import android.view.Gravity;

import android.widget.Toast;

 

public class C2dm_BroadcastReceiver extends BroadcastReceiver {

 

    static String registration_id = null;

    static String c2dm_msg = "";

 

    /* 메시지 도착

     * (non-Javadoc)

     * @see android.content.BroadcastReceiver#onReceive(android.content.Context, android.content.Intent)

     */

    @Override

    public void onReceive(Context context, Intent intent) {

        if (intent.getAction().equals("com.google.android.c2dm.intent.REGISTRATION")) {

 

            handleRegistration(context, intent);

 

        } else if (intent.getAction().equals("com.google.android.c2dm.intent.RECEIVE")) {

 

            c2dm_msg = intent.getExtras().getString("msg");

 

            System.out.println("c2dm_msg======>" + c2dm_msg);

            Toast toast = Toast.makeText(context, "메시지 도착!\n" + c2dm_msg, Toast.LENGTH_SHORT);

            toast.setGravity(Gravity.TOP | Gravity.CENTER, 0, 150);

            toast.show();

 

        }

    }

 

    /**

     * @param context

     * @param intent

     */

    private void handleRegistration(Context context, Intent intent) {

 

        registration_id = intent.getStringExtra("registration_id");

 

        System.out.println("registration_id====>" + registration_id);

 

        if (intent.getStringExtra("error") != null) {

 

            Log.v("C2DM_REGISTRATION", ">>>>>" + "Registration failed, should try again later." + "<<<<<");

 

        } else if (intent.getStringExtra("unregistered") != null) {

 

            Log.v("C2DM_REGISTRATION", ">>>>>" + "unregistration done, new messages from the authorized sender will be rejected" + "<<<<<");

 

        } else if (registration_id != null) {

 

            System.out.println("registration_id complete!!");

        }

    }

 

}

 

Coolsharp_pushActivity.java


package com.coolsharp.push;

 

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.io.OutputStream;

import java.net.HttpURLConnection;

import java.net.URL;

import java.net.URLEncoder;

 

import android.app.Activity;

import android.app.PendingIntent;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;

 

public class Coolsharp_pushActivity extends Activity {

 

    // 아래 문자는 수정하면 안됨.

    // 구글에서 필요한 변수명.

    private static final String S_APP = "app";

    private static final String S_SENDER = "sender";

    private static final String S_REGISTRATION_ID_KEY = "S_AUTH_TOKEN";

    private static final String S_AUTH_TOKEN_KEY = "S_REGISTRATION_ID";

    private static String S_REGISTRATION_ID = "";

    private static String S_AUTH_TOKEN = "";

    EditText msg_text;

    Button msg_send;

 

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

 

        // 마지막 저장된 인증

        S_AUTH_TOKEN = Util.getSharedPreferencesValue(getApplicationContext(), "coolsharp", MODE_PRIVATE, S_AUTH_TOKEN_KEY);

        // 마지막 저장된 레지스트레이션 아이디

        S_REGISTRATION_ID = Util.getSharedPreferencesValue(getApplicationContext(), "coolsharp", MODE_PRIVATE, S_REGISTRATION_ID_KEY);

        if (S_REGISTRATION_ID.equals("")) {

            // C2DM 등록ID 발급

            Intent registrationIntent = new Intent("com.google.android.c2dm.intent.REGISTER");

            registrationIntent.putExtra(S_APP, PendingIntent.getBroadcast(this, 0, new Intent(), 0)); // 어플리케이션ID

            registrationIntent.putExtra(S_SENDER, "xxxx@gmail.com"); // 개발자ID

            startService(registrationIntent); // 서비스 시작(등록ID발급받기)

        }

 

        msg_text = (EditText) findViewById(R.id.msg_text);

        msg_send = (Button) findViewById(R.id.msg_send);

 

        msg_send.setOnClickListener(new OnClickListener() {

            @Override

            public void onClick(View v) {

                // TODO Auto-generated method stub

                try {

                    // 메시지를 보낼때 sender(발급받은 ID, 토큰인증값, 메시지)

                    // 한번 발급 받은 인증을 다시 발급 받지 않게 하기 위함

                    // 인증을 따로 문자열로 저장하는 것도 좋을 듯 함

                    if (S_AUTH_TOKEN.equals("")) {

                        S_AUTH_TOKEN = getAuthToken();

                        Util.setSharedPreferencesValue(getApplicationContext(), "coolsharp", MODE_PRIVATE, S_AUTH_TOKEN_KEY, S_AUTH_TOKEN);

                    }

                    // 한번 발급 받은 REGISTRATION_ID를 다시 발급 받지 않게 하기 위함

                    if (S_REGISTRATION_ID.equals("")) {

                        S_REGISTRATION_ID = C2dm_BroadcastReceiver.registration_id;

                        Util.setSharedPreferencesValue(getApplicationContext(), "coolsharp", MODE_PRIVATE, S_REGISTRATION_ID_KEY, S_REGISTRATION_ID);

                    }

                    sender(S_REGISTRATION_ID, S_AUTH_TOKEN, msg_text.getText().toString());

                } catch (Exception e) {

                    // TODO Auto-generated catch block

                    e.printStackTrace();

                }

            }

        });

    }

 

    /**

     * 메시지 전송

     * @param regId

     * @param authToken

     * @param msg

     * @throws Exception

     */

    public void sender(String regId, String authToken, String msg) throws Exception {

        StringBuffer postDataBuilder = new StringBuffer();

 

        postDataBuilder.append("registration_id=" + regId); // 등록ID

        postDataBuilder.append("&collapse_key=1");

        postDataBuilder.append("&delay_while_idle=1");

        postDataBuilder.append("&data.msg=" + URLEncoder.encode(msg, "UTF-8")); // 태울

                                                                                // 메시지

 

        byte[] postData = postDataBuilder.toString().getBytes("UTF8");

 

        URL url = new URL("https://android.apis.google.com/c2dm/send");

 

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setDoOutput(true);

        conn.setUseCaches(false);

        conn.setRequestMethod("POST");

        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        conn.setRequestProperty("Content-Length", Integer.toString(postData.length));

        conn.setRequestProperty("Authorization", "GoogleLogin auth=" + authToken);

 

        OutputStream out = conn.getOutputStream();

        out.write(postData);

        out.close();

 

        conn.getInputStream();

 

    }

 

    /**

     * 인증 토큰 얻어오기

     * @return

     * @throws Exception

     */

    public String getAuthToken() throws Exception {

        String authtoken = "";

 

        StringBuffer postDataBuilder = new StringBuffer();

        postDataBuilder.append("accountType=HOSTED_OR_GOOGLE"); // 똑같이 써주셔야 합니다.

        postDataBuilder.append("&Email=xxxx@gmail.com"); // 개발자 구글 id

        postDataBuilder.append("&Passwd=xxxx"); // 개발자 구글 비빌번호

        postDataBuilder.append("&service=ac2dm");

        postDataBuilder.append("&source=test-1.0");

 

        byte[] postData = postDataBuilder.toString().getBytes("UTF8");

 

        URL url = new URL("https://www.google.com/accounts/ClientLogin");

 

        HttpURLConnection conn = (HttpURLConnection) url.openConnection();

        conn.setDoOutput(true);

        conn.setUseCaches(false);

        conn.setRequestMethod("POST");

        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        conn.setRequestProperty("Content-Length", Integer.toString(postData.length));

 

        OutputStream out = conn.getOutputStream();

        out.write(postData);

        out.close();

 

        BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));

 

        String sidLine = br.readLine();

        String lsidLine = br.readLine();

        String authLine = br.readLine();

 

        System.out.println("sidLine----------->>>" + sidLine);

        System.out.println("lsidLine----------->>>" + lsidLine);

        System.out.println("authLine----------->>>" + authLine);

        System.out.println("AuthKey----------->>>" + authLine.substring(5, authLine.length()));

 

        authtoken = authLine.substring(5, authLine.length());

 

        return authtoken;

    }

 

}

 
Util.java


package com.coolsharp.push;

 

import android.content.Context;

import android.content.SharedPreferences;

 

public class Util {

    public static String getSharedPreferencesValue(Context context, String name, int mode, String key) {

        SharedPreferences prefs = context.getSharedPreferences(name, mode);

        return prefs.getString(key, "");

    }

 

    public static boolean setSharedPreferencesValue(Context context, String name, int mode, String key, String value) {

        SharedPreferences prefs = context.getSharedPreferences(name, mode);

        SharedPreferences.Editor editor = prefs.edit();

        editor.putString(key, value);

        return editor.commit();

    }

}

 
AndroidManifest.xml


<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.coolsharp.push"

    android:versionCode="1"

    android:versionName="1.0" >

 

    <uses-sdk android:minSdkVersion="8" />

 

    <application

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name" >

        <activity

            android:label="@string/app_name"

            android:name=".Coolsharp_pushActivity" >

            <intent-filter >

                <action android:name="android.intent.action.MAIN" />

 

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

 

        <receiver

            android:name=".C2dm_BroadcastReceiver"

            android:permission="com.google.android.c2dm.permission.SEND" >

            <intent-filter >

                <action android:name="com.google.android.c2dm.intent.RECEIVE" />

 

                <category android:name="com.coolsharp.push" />

            </intent-filter>

            <intent-filter >

                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

 

                <category android:name="com.coolsharp.push" />

            </intent-filter>

        </receiver>

    </application>

 

    <permission

        android:name="com.coolsharp.push.permission.C2D_MESSAGE"

        android:protectionLevel="signature" />

 

    <uses-permission android:name="com.coolsharp.push.permission.C2D_MESSAGE" />

    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

    <uses-permission android:name="android.permission.INTERNET" />

 

</manifest>





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