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Pebble: experiment with extensible notifications

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This allows lot more flexible notifications including custom actions (replys, etc)

When used without actions it could serve as a simple replacement for the current notifications.
The main showstopper is that I do not know how to assign icons (mail, chat) to these.
Unfortunately I ended up in recovery when playing around with unknown parameters trial&error style.
This commit is contained in:
Andreas Shimokawa 2015-05-15 21:34:38 +02:00
parent 2b98620ee0
commit 55400817b4
1 changed files with 79 additions and 5 deletions
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84
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/pebble/PebbleProtocol.java
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@ -8,6 +8,7 @@ import org.slf4j.LoggerFactory;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.ArrayList;
import java.util.Random;
import java.util.SimpleTimeZone;
import java.util.TimeZone;
import java.util.UUID;
@ -27,6 +28,9 @@ public class PebbleProtocol extends GBDeviceProtocol {
private static final Logger LOG = LoggerFactory.getLogger(PebbleProtocol.class);
// set to false AT YOUR OWN RISK. I ended up in recovery
static private final boolean USE_OLD_NOTIFICATION_PROTOCOL = true;
static final short ENDPOINT_FIRMWARE = 1;
static final short ENDPOINT_TIME = 11;
static final short ENDPOINT_FIRMWAREVERSION = 16;
@ -43,6 +47,7 @@ public class PebbleProtocol extends GBDeviceProtocol {
static final short ENDPOINT_APP = 2004;
static final short ENDPOINT_APPLOGS = 2006;
static final short ENDPOINT_NOTIFICATION = 3000;
static final short ENDPOINT_EXTENSIBLENOTIFS = 3010;
static final short ENDPOINT_RESOURCE = 4000;
static final short ENDPOINT_SYSREG = 5000;
static final short ENDPOINT_FCTREG = 5001;
@ -153,10 +158,10 @@ public class PebbleProtocol extends GBDeviceProtocol {
static final short LENGTH_SYSTEMMESSAGE = 2;
private static final String[] hwRevisions = {"unknown", "ev1", "ev2", "ev2_3", "ev2_4", "v1_5", "v2_0"};
private static Random mRandom = new Random();
static byte last_id = -1;
// FIXME: this does not belong here
static final UUID WeatherNeatUUID = UUID.fromString("3684003b-a685-45f9-a713-abc6364ba051");
static byte last_id = -1;
private static byte[] encodeMessage(short endpoint, byte type, int cookie, String[] parts) {
// Calculate length first
@ -207,10 +212,14 @@ public class PebbleProtocol extends GBDeviceProtocol {
Long ts = System.currentTimeMillis() / 1000;
TimeZone tz = SimpleTimeZone.getDefault();
ts += (tz.getOffset(ts) + tz.getDSTSavings()) / 1000;
String tsstring = ts.toString(); // SIC
String[] parts = {from, body, tsstring};
return encodeMessage(ENDPOINT_NOTIFICATION, NOTIFICATION_SMS, 0, parts);
if (USE_OLD_NOTIFICATION_PROTOCOL) {
String[] parts = {from, body, ts.toString()};
return encodeMessage(ENDPOINT_NOTIFICATION, NOTIFICATION_SMS, 0, parts);
}
String[] parts = {from, null, body};
return encodeExtensibleNotification(mRandom.nextInt(), (int) (ts & 0xffffffff), parts);
}
@Override
@ -246,6 +255,71 @@ public class PebbleProtocol extends GBDeviceProtocol {
return buf.array();
}
private static byte[] encodeExtensibleNotification(int id, int timestamp, String[] parts) {
// Calculate length first
byte attributes_count = 0;
int length = 21;
if (parts != null) {
for (String s : parts) {
if (s == null || s.equals("")) {
continue;
}
attributes_count++;
length += (3 + s.getBytes().length);
}
}
// Encode Prefix
ByteBuffer buf = ByteBuffer.allocate(length + LENGTH_PREFIX);
buf.order(ByteOrder.BIG_ENDIAN);
buf.putShort((short) (length));
buf.putShort(ENDPOINT_EXTENSIBLENOTIFS);
buf.order(ByteOrder.LITTLE_ENDIAN); // !
buf.put((byte) 0x00); // ?
buf.put((byte) 0x01); // add notifications
buf.putInt(0x00000002); // flags - ?
buf.putInt(id);
buf.putInt(0x00000000); // ANCS id
buf.putInt(timestamp);
buf.put((byte) 0x01); // layout - ?
buf.put(attributes_count); // length attributes
buf.put((byte) 0); // len actions - none so far
byte attribute_id = 0;
// Encode Pascal-Style Strings
if (parts != null) {
for (String s : parts) {
attribute_id++;
if (s == null || s.equals("")) {
continue;
}
int partlength = s.getBytes().length;
if (partlength > 255) partlength = 255;
buf.put(attribute_id);
buf.putShort((short) partlength);
buf.put(s.getBytes(), 0, partlength);
}
}
// ACTION
/*
buf.put((byte) 0x01);
buf.put((byte) 0x02);
buf.put((byte) 0x01);
String actionstring = "test";
buf.put((byte) 0x01);
buf.putShort((short) 4);
buf.put(actionstring.getBytes(), 0, 4);
*/
return buf.array();
}
public byte[] encodeGetTime() {
ByteBuffer buf = ByteBuffer.allocate(LENGTH_PREFIX + LENGTH_GETTIME);
buf.order(ByteOrder.BIG_ENDIAN);