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Pebble: Experiment with 3.x compatible notifications

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This will most probably not work, but please test if you can ;)
This commit is contained in:
Andreas Shimokawa 2015-06-16 23:14:51 +02:00
parent 4908fe7a53
commit a07aed62ad
2 changed files with 78 additions and 3 deletions
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3
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GB.java
View File

@ -86,6 +86,9 @@ public class GB {
}
public static String hexdump(byte[] buffer, int offset, int length) {
if (length == -1 ) {
length = buffer.length;
}
final char[] hexArray = "0123456789ABCDEF".toCharArray();
char[] hexChars = new char[length * 2];
for (int i = 0; i < length; i++) {

78
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/pebble/PebbleProtocol.java
View File

@ -28,7 +28,6 @@ public class PebbleProtocol extends GBDeviceProtocol {
private static final Logger LOG = LoggerFactory.getLogger(PebbleProtocol.class);
static final short ENDPOINT_FIRMWARE = 1;
static final short ENDPOINT_TIME = 11;
static final short ENDPOINT_FIRMWAREVERSION = 16;
public static final short ENDPOINT_PHONEVERSION = 17;
@ -52,6 +51,7 @@ public class PebbleProtocol extends GBDeviceProtocol {
public static final short ENDPOINT_DATALOG = 6778;
static final short ENDPOINT_RUNKEEPER = 7000;
static final short ENDPOINT_SCREENSHOT = 8000;
static final short ENDPOINT_BLOBDB = (short) 45531; // 3.x only
static final short ENDPOINT_PUTBYTES = (short) 48879;
static final byte NOTIFICATION_EMAIL = 0;
@ -223,7 +223,7 @@ public class PebbleProtocol extends GBDeviceProtocol {
if (isFw3x) {
String[] parts = {from, null, body};
return encodeExtensibleNotification(mRandom.nextInt(), (int) (ts & 0xffffffff), parts);
return encodeBlobdbNotification((int) (ts & 0xffffffff), parts);
} else {
String[] parts = {from, body, ts.toString()};
return encodeMessage(ENDPOINT_NOTIFICATION, NOTIFICATION_SMS, 0, parts);
@ -238,7 +238,7 @@ public class PebbleProtocol extends GBDeviceProtocol {
if (isFw3x) {
String[] parts = {from, subject, body};
return encodeExtensibleNotification(mRandom.nextInt(), (int) (ts & 0xffffffff), parts);
return encodeBlobdbNotification((int) (ts & 0xffffffff), parts);
} else {
String[] parts = {from, body, ts.toString(), subject};
return encodeMessage(ENDPOINT_NOTIFICATION, NOTIFICATION_EMAIL, 0, parts);
@ -331,6 +331,78 @@ public class PebbleProtocol extends GBDeviceProtocol {
return buf.array();
}
private static byte[] encodeBlobdbNotification(int timestamp, String[] parts) {
// Calculate length first
final short BLOBDB_LENGTH = 23;
final short NOTIFICATION_PIN_LENGTH = 46;
byte attributes_count = 0;
int attributes_length = 0;
if (parts != null) {
for (String s : parts) {
if (s == null || s.equals("")) {
continue;
}
attributes_count++;
attributes_length += (3 + s.getBytes().length);
}
}
int length = BLOBDB_LENGTH + NOTIFICATION_PIN_LENGTH + attributes_length;
// Encode Prefix
ByteBuffer buf = ByteBuffer.allocate(length + LENGTH_PREFIX);
buf.order(ByteOrder.BIG_ENDIAN);
buf.putShort((short) (length));
buf.putShort(ENDPOINT_BLOBDB);
buf.order(ByteOrder.LITTLE_ENDIAN);
// blobdb - 23 bytes
buf.put((byte) 0x01); // insert
buf.putShort((short) mRandom.nextInt()); // token
buf.put((byte) 0x04); // db id (0x04 = notification)
buf.put((byte) 16); // uuid length
byte[] uuid_buf = new byte[16];
mRandom.nextBytes(uuid_buf);
buf.put(uuid_buf); // random UUID
buf.putShort((short) (NOTIFICATION_PIN_LENGTH + attributes_length)); // length of the encapsulated data
// pin - 46 bytes
buf.put(uuid_buf); // random UUID
Arrays.fill(uuid_buf, (byte) 0);
buf.put(uuid_buf); // parent UUID
buf.putInt(timestamp); // 32-bit timestamp
buf.putShort((short) 0); // duration
buf.put((byte) 0x01); // type (0x01 = notification)
buf.putShort((short) 0x0010); // flags 0x0010 = read?
buf.put((byte) 0x01); // layout (0x01 = default?)
buf.putShort((short) attributes_length); // total length of all attributes in bytes
buf.put(attributes_count); // count attributes
buf.put((byte) 0); // count 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);
}
}
return buf.array();
}
public byte[] encodeGetTime() {
ByteBuffer buf = ByteBuffer.allocate(LENGTH_PREFIX + LENGTH_GETTIME);
buf.order(ByteOrder.BIG_ENDIAN);