-
Notifications
You must be signed in to change notification settings - Fork 1.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
3 changed files
with
113 additions
and
7 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
103 changes: 103 additions & 0 deletions
103
app/src/main/java/com/eveningoutpost/dexdrip/cloud/jamcm/JamCm.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| package com.eveningoutpost.dexdrip.cloud.jamcm; | ||
|
|
||
| import static com.eveningoutpost.dexdrip.utils.CipherUtils.hexToBytes; | ||
|
|
||
| import android.os.Bundle; | ||
|
|
||
| import com.eveningoutpost.dexdrip.GcmActivity; | ||
| import com.eveningoutpost.dexdrip.models.JoH; | ||
| import com.eveningoutpost.dexdrip.models.UserError; | ||
| import com.eveningoutpost.dexdrip.utils.CipherUtils; | ||
|
|
||
| import java.net.DatagramPacket; | ||
| import java.net.DatagramSocket; | ||
| import java.net.InetAddress; | ||
| import java.nio.ByteBuffer; | ||
| import java.nio.ByteOrder; | ||
| import java.nio.charset.StandardCharsets; | ||
|
|
||
| import lombok.val; | ||
|
|
||
| /** | ||
| * JamOrHam | ||
| * <p> | ||
| * Replacement for GCM | ||
| */ | ||
| public class JamCm { | ||
|
|
||
| private static final String TAG = "JamCm"; | ||
| private static final String serverInstance = "jamcm3749021"; | ||
| private static final String serverDomain = "bluejay.website"; | ||
| private static final String serverAddress = serverInstance + "." + serverDomain; | ||
| private static final int serverPort = 5228; | ||
|
|
||
| private static final byte PROTOCOL_VERSION = 1; | ||
|
|
||
| /** | ||
| * @noinspection DataFlowIssue | ||
| */ | ||
| public static String getId() { | ||
| if (GcmActivity.token == null) { | ||
| return null; | ||
| } | ||
| try { | ||
| return CipherUtils.getSHA256(GcmActivity.token).substring(0, 32); | ||
| } catch (Exception e) { | ||
| UserError.Log.wtf(TAG, "Got exception in getId: " + e); | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * @noinspection DataFlowIssue | ||
| */ | ||
| public static void sendMessage(Bundle input) { | ||
|
|
||
| val ids = getId(); | ||
| if (ids == null) { | ||
| if (JoH.ratelimit("sendMessage error", 1200)) { | ||
| UserError.Log.wtf(TAG, "Cannot send message due to missing id"); | ||
| } | ||
| return; | ||
| } | ||
| try { | ||
| UserError.Log.d(TAG, "sendMessage called"); | ||
| InetAddress address = InetAddress.getByName(serverAddress); | ||
|
|
||
| byte[] id = hexToBytes(ids); | ||
| if (id.length != 16) { | ||
| throw new RuntimeException("Invalid id length: " + id.length); | ||
| } | ||
| byte[] channel = GcmActivity.myIdentity().getBytes(StandardCharsets.UTF_8); | ||
| if (channel.length != 32) { | ||
| throw new RuntimeException("Invalid channel length: " + channel.length); | ||
| } | ||
|
|
||
| byte[] type = new byte[16]; | ||
| byte[] actionb = input.getString("action").getBytes(StandardCharsets.UTF_8); | ||
| System.arraycopy(actionb, 0, type, 0, Math.min(type.length, actionb.length)); | ||
| byte[] payload = input.getString("payload").getBytes(StandardCharsets.UTF_8); | ||
| short messageSize = (short) payload.length; | ||
|
|
||
| val buffer = ByteBuffer.allocate(1 + 16 + 32 + 16 + 2 + payload.length); | ||
| buffer.order(ByteOrder.LITTLE_ENDIAN); | ||
| buffer.put(PROTOCOL_VERSION); | ||
| buffer.put(id); | ||
| buffer.put(channel); | ||
| buffer.put(type); | ||
| buffer.putShort(messageSize); | ||
| buffer.put(payload); | ||
|
|
||
| val data = buffer.array(); | ||
| val packet = new DatagramPacket(data, data.length, address, serverPort); | ||
|
|
||
| try (DatagramSocket socket = new DatagramSocket()) { | ||
| socket.send(packet); | ||
| UserError.Log.d(TAG, "Message sent to server"); | ||
| } | ||
| } catch (Exception e) { | ||
| UserError.Log.e(TAG, "Error: " + e); | ||
| } | ||
| } | ||
|
|
||
| } |