I am trying to commit a transaction on the Blockchain of the Hyperledger Fabric 2.2 after offline signing of the transaction from users private key.
After signing the transaction proposal,I send it to the endorsers for the endorsements and in response i get following endorsements from the endorser peers.
[ { version: 1,
timestamp: null,
response:
{ status: 200,
message: '',
payload:
<Buffer 7b 22 4f 72 67 4e 61 6d 65 22 3a 22 78 79 7a 31 22 2c 22 64 6f 63 54 79 70 65 22 3a 22 63 65 72 74 69 66 69 63 61 74 65 22 2c 22 64 6f 6d 61 69 6e 22 ... > },
payload:
<Buffer 0a 20 ca 1d b7 e3 be aa 49 c8 29 a7 ec 70 22 e8 16 39 42 5a 0f ba e2 d5 3f fd 73 5d 3b 46 fb a0 4b 1f 12 d8 01 0a 64 12 34 0a 0a 5f 6c 69 66 65 63 79 ... >,
endorsement:
{ endorser:
<Buffer 0a 07 4f 72 67 31 4d 53 50 12 d9 07 2d 2d 2d 2d 2d 42 45 47 49 4e 20 43 45 52 54 49 46 49 43 41 54 45 2d 2d 2d 2d 2d 0a 4d 49 49 43 71 54 43 43 41 6c ... >,
signature:
<Buffer 30 45 02 21 00 aa ca ad 65 19 c4 f7 81 14 d2 dc e4 66 78 37 e7 9e 26 da 42 6a a6 d4 9f 6b 82 63 c5 96 36 3d c2 02 20 4e a7 57 ab 6f a7 9f 6c 7b 08 53 ... > },
connection:
{ type: 'Endorser',
name: 'peer0.org1.example.com:7051',
url: 'grpcs://localhost:7051',
options: [Object] },
peer: 'peer0.org1.example.com:7051' },
{ version: 1,
timestamp: null,
response:
{ status: 200,
message: '',
payload:
<Buffer 7b 22 4f 72 67 4e 61 6d 65 22 3a 22 78 79 7a 31 22 2c 22 64 6f 63 54 79 70 65 22 3a 22 63 65 72 74 69 66 69 63 61 74 65 22 2c 22 64 6f 6d 61 69 6e 22 ... > },
payload:
<Buffer 0a 20 ca 1d b7 e3 be aa 49 c8 29 a7 ec 70 22 e8 16 39 42 5a 0f ba e2 d5 3f fd 73 5d 3b 46 fb a0 4b 1f 12 d8 01 0a 64 12 34 0a 0a 5f 6c 69 66 65 63 79 ... >,
endorsement:
{ endorser:
<Buffer 0a 07 4f 72 67 32 4d 53 50 12 d1 07 2d 2d 2d 2d 2d 42 45 47 49 4e 20 43 45 52 54 49 46 49 43 41 54 45 2d 2d 2d 2d 2d 0a 4d 49 49 43 70 54 43 43 41 6b ... >,
signature:
<Buffer 30 44 02 20 6e 9c 3f 83 eb a0 45 5b 94 9b 58 be 38 55 8b 00 58 6c 1e c6 8e 65 bd 34 11 4b 8e 4c 76 6c 76 75 02 20 5c 3f c8 ee 14 43 51 a4 07 e8 3a e7 ... > },
connection:
{ type: 'Endorser',
name: 'peer0.org2.example.com:9051',
url: 'grpcs://localhost:9051',
options: [Object] },
peer: 'peer0.org2.example.com:9051' } ]
But, when i try to build,a required formatted proposal including the endorsements,to send it to the orderer so that orderer network, orders the transaction and sends it to committing peers for commitment on the Blockchain,but it gives following error
Failed to submit transaction: Error: Proposal has not been endorsed
code to build the proposal for the orderer
let commitment = new Commit('pki','mychannel')
let idx = client.newIdentityContext(user.user);
let commit = commitment.build(idx,{endorsement:ProposalResponse})
Followed these instructions https://hyperledger.github.io/fabric-sdk-node/release-2.2/Proposal.html#build
Any thoughts are appreciated
since the dotnet version of Realm.Server has a problem with certificates (see https://forums.realm.io/t/net-realm-server-notifier-startasync-never-connects-to-realm-cloud-instance-because-of-ssl-exception/1625), it was suggested by realm to use the nodejs package.
I am quite new to nodejs and so I tried to implement a change event listener using node. All that based on https://docs.realm.io/platform/using-synced-realms/server-side-usage/data-change-events#creating-event-handlers-in-node-js.
Unfortunatly I am not able to get it working.
The node process stops running when realm is trying to connect (or at least is doing something in background). Anyhow the addListener method makes it stop.
I am sorry but there is not much I could provide. I've attached my sample code and the console output of the node process.
Does anyone has any experience with it? Or any tips where I could look up for some detailed logs, etc.?
Thanks in advance!!
'use strict';
const realm = require('realm');
const http = require('http');
const name = 'node-hello-world';
const port = '8888';
const app = new http.Server();
// the URL to the Realm Object Server
const realmUrl = '//myinstance.de1a.cloud.realm.io';
const userName = 'admin';
const userPassword = 'AnyPassword';
// The regular expression you provide restricts the observed Realm files to only the subset you
// are actually interested in. This is done in a separate step to avoid the cost
// of computing the fine-grained change set if it's not necessary.
const notifierPath = '^/([^/]+)/user-data';
//declare admin user
let adminUser = undefined;
// The handleChange callback is called for every observed Realm file whenever it
// has changes. It is called with a change event which contains the path, the Realm,
// a version of the Realm from before the change, and indexes indication all objects
// which were added, deleted, or modified in this change
var handleChange = async function(changeEvent) {
// Extract the user ID from the virtual path, assuming that we're using
// a filter which only subscribes us to updates of user-scoped Realms.
var matches = changeEvent.path.match("^/([^/]+)/([^/]+)$");
var userId = matches[1];
var r = changeEvent.realm;
console.log(`Change event for ${userId}`);
};
// register the event handler callback
async function main() {
try {
realm.Sync.setLogLevel('all');
console.log("Creating instance of credentials");
var credentials = realm.Sync.Credentials.usernamePassword(userName, userPassword);
console.log("Logging in user.");
adminUser = await realm.Sync.User.login(`https:${realmUrl}`, credentials);
console.log(`Adding realm listener for path ${notifierPath}`);
//if this line was called, the console will exit in a few seconds; if not the node process will continue running
realm.Sync.addListener(`realms:${realmUrl}`, adminUser, notifierPath, 'change', handleChange);
console.log("Added listener");
} catch (exception) {
console.log("An error has occured.");
console.log(exception);
}
}
main();
app.on('request', (req, res) => {
res.writeHead(200, { 'Content-Type': 'text/plain' });
res.write('Hello World');
res.end('\n');
});
app.listen(port, () => {
console.log(`${name} is listening on port ${port}`);
});
------------------------------
Path>node app.js
Creating instance of credentials
Logging in user.
node-hello-world is listening on port 8888
Adding realm listener for path ^/([^/]+)/user-data
Global notifier: start()
Realm sync client ([realm-core-5.10.1], [realm-sync-3.10.0], protocol version 25)
Config param: max_open_files = 256
Config param: one_connection_per_session = 1
Config param: connect_timeout = 600000 ms
Config param: connection_linger_time = 30000 ms
Config param: ping_keepalive_period = 600000 ms
Config param: pong_keepalive_timeout = 600000 ms
Config param: fast_reconnect_limit = 60000 ms
Config param: enable_upload_log_compaction = 1
Config param: tcp_no_delay = 0
Added listener
Connection[1]: WebSocket::Websocket()
Connection[1]: Session[1]: Binding 'Path\realm-object-server\listener\realms.realm' to '/__admin'
Connection[1]: Session[1]: Activating
Opening Realm file: Path\realm-object-server\listener\realms.realm
Connection[1]: Session[1]: last_version_available = 0
Connection[1]: Session[1]: progress_server_version = 0
Connection[1]: Session[1]: progress_client_version = 0
Using already open Realm file: Path\realm-object-server\listener\realms.realm
Connection[1]: Session[1]: Progress handler called, downloaded = 0, downloadable = 0, uploaded = 0, uploadable = 0, progress version = 0, snapshot version = 1
Connection[1]: Resolving 'myinstance.de1a.cloud.realm.io:443'
Connection[1]: Connecting to endpoint '18.185.186.xx:443' (1/3)
Connection[1]: Connected to endpoint '18.185.186.xx:443' (from '127.0.0.1:53094')
Connection[1]: Verifying server SSL certificate using root certificates, host name = myinstance.de1a.cloud.realm.io, server port = 443, certificate =
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Connection[1]: Verifying server SSL certificate using 155 root certificates
Connection[1]: Server SSL certificate verified using root certificate(29):
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
Connection[1]: WebSocket::initiate_client_handshake()
Connection[1]: HTTP request =
GET /realm-sync/%2F__admin HTTP/1.1
Authorization: Realm-Access-Token version=1 token="xxx"
Connection: Upgrade
Host: myinstance.de1a.cloud.realm.io
Sec-WebSocket-Key: 0TpYePZIZMhOid08TiAQzw==
Sec-WebSocket-Protocol: io.realm.sync.25
Sec-WebSocket-Version: 13
Upgrade: websocket
Connection[1]: WebSocket::handle_http_response_received()
Connection[1]: HTTP response = HTTP/1.1 101 Switching Protocols
Connection: upgrade
Date: Sun, 14 Oct 2018 11:22:13 GMT
sec-websocket-accept: A/hVVKTFOsJneK3U/SBQMisIyIg=
sec-websocket-protocol: io.realm.sync.25
Server: nginx/1.13.5
upgrade: websocket
Connection[1]: Will emit a ping in 467729 milliseconds
Connection[1]: Session[1]: Sending: BIND(path='/__admin', signed_user_token_size=601, need_client_file_ident=1)
Connection[1]: Session[1]: Received: IDENT(client_file_ident=13, client_file_ident_salt=7274062357029523918)
Using already open Realm file: Path\realm-object-server\listener\realms.realm
Connection[1]: Session[1]: Sending: IDENT(client_file_ident=13, client_file_ident_salt=7274062357029523918, scan_server_version=0, scan_client_version=0, latest_server_version=0, latest_server_version_salt=0)
Connection[1]: Session[1]: Sending: MARK(request_ident=2)
Download message compression: is_body_compressed = 1, compressed_body_size=2054, uncompressed_body_size=5474
Received: DOWNLOAD CHANGESET(server_version=1, client_version=0, origin_timestamp=119025057956, origin_file_ident=2, original_changeset_size=370, changeset_size=370)
Changeset: 3F 00 07 41 63 63 6F 75 6E 74 3F 01 0A 50 65 72 6D 69 73 73 69 6F 6E 3F 02 09 52 65 61 6C 6D 46 69 6C 65 3F 03 04 70 61 74 68 3F 04 04 55 73 65 72 3F 05 06 75 73 65 72 49 64 3F 06 0F 55 73 65 72 4D 65 74 61 64 61 74 61 52 6F 77 3F 07 08 70 72 6F 76 69 64 65 72 3F 08 0A 70 72 6F 76 69 64 65 72 49 64 3F 09 04 75 73 65 72 3F 0A 09 72 65 61 6C 6D 46 69 6C 65 3F 0B 07 6D 61 79 52 65 61 64 3F 0C 08 6D 61 79 57 72 69 74 65 3F 0D 09 6D 61 79 4D 61 6E 61 67 65 3F 0E 09 75 70 64 61 74 65 64 41 74 3F 0F 09 72 65 61 6C 6D 54 79 70 65 3F 10 09 73 79 6E 63 4C 61 62 65 6C 3F 11 05 6F 77 6E 65 72 3F 12 09 63 72 65 61 74 65 64 41 74 3F 13 07 69 73 41 64 6D 69 6E 3F 14 08 61 63 63 6F 75 6E 74 73 3F 15 08 6D 65 74 61 64 61 74 61 3F 16 03 6B 65 79 3F 17 05 76 61 6C 75 65 02 00 00 02 01 00 02 02 01 03 02 00 02 04 01 05 02 00 02 06 00 00 00 0B 07 02 00 00 0B 08 02 00 00 00 01 0B 09 0C 00 04 0B 0A 0C 00 02 0B 0B 01 00 00 0B 0C 01 00 00 0B 0D 01 00 00 0B 0E 08 00 00 00 02 0B 0F 02 00 00 0B 10 02 00 00 0B 11 0C 00 04 0B 12 08 00 00 00 04 0B 13 01 00 00 0B 14 0D 00 00 0B 15 0D 00 06 00 06 0B 16 02 00 00 0B 17 02 00 00
Received: DOWNLOAD CHANGESET(server_version=2, client_version=0, origin_timestamp=119025057963, origin_file_ident=2, original_changeset_size=208, changeset_size=208)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 05 6F 77 6E 65 72 3F 04 09 63 72 65 61 74 65 64 41 74 00 00 04 D5 88 82 E0 F4 F3 85 E4 E0 00 A4 E3 DF D7 AD A0 B3 BA 07 02 08 2F 64 65 66 61 75 6C 74 06 02 01 D5 88 82 E0 F4 F3 85 E4 E0 00 A4 E3 DF D7 AD A0 B3 BA 07 00 09 72 65 66 65 72 65 6E 63 65 06 02 02 D5 88 82 E0 F4 F3 85 E4 E0 00 A4 E3 DF D7 AD A0 B3 BA 07 00 07 64 65 66 61 75 6C 74 06 40 03 D5 88 82 E0 F4 F3 85 E4 E0 00 A4 E3 DF D7 AD A0 B3 BA 07 00 06 08 04 D5 88 82 E0 F4 F3 85 E4 E0 00 A4 E3 DF D7 AD A0 B3 BA 07 00 A1 F7 F2 DD 05 C0 ED 98 CB 03
Received: DOWNLOAD CHANGESET(server_version=3, client_version=0, origin_timestamp=119025058022, origin_file_ident=2, original_changeset_size=202, changeset_size=202)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 05 6F 77 6E 65 72 3F 04 09 63 72 65 61 74 65 64 41 74 00 00 04 C1 CF E7 BE C5 FA 94 88 07 AD E1 ED 8E 8E 83 8F D2 D0 00 02 08 2F 5F 5F 61 64 6D 69 6E 06 02 01 C1 CF E7 BE C5 FA 94 88 07 AD E1 ED 8E 8E 83 8F D2 D0 00 00 04 66 75 6C 6C 06 02 02 C1 CF E7 BE C5 FA 94 88 07 AD E1 ED 8E 8E 83 8F D2 D0 00 00 07 64 65 66 61 75 6C 74 06 40 03 C1 CF E7 BE C5 FA 94 88 07 AD E1 ED 8E 8E 83 8F D2 D0 00 00 06 08 04 C1 CF E7 BE C5 FA 94 88 07 AD E1 ED 8E 8E 83 8F D2 D0 00 00 A2 F7 F2 DD 05 80 E3 BE 0A
Received: DOWNLOAD CHANGESET(server_version=4, client_version=0, origin_timestamp=119025058024, origin_file_ident=2, original_changeset_size=201, changeset_size=201)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 05 6F 77 6E 65 72 3F 04 09 63 72 65 61 74 65 64 41 74 00 00 04 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 02 07 2F 5F 5F 70 65 72 6D 06 02 01 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 00 04 66 75 6C 6C 06 02 02 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 00 07 64 65 66 61 75 6C 74 06 40 03 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 00 06 08 04 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 00 A2 F7 F2 DD 05 80 EC B8 0B
Received: DOWNLOAD CHANGESET(server_version=5, client_version=0, origin_timestamp=119025058029, origin_file_ident=2, original_changeset_size=221, changeset_size=221)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 05 6F 77 6E 65 72 3F 04 09 63 72 65 61 74 65 64 41 74 00 00 04 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 02 16 2F 5F 5F 77 69 6C 64 63 61 72 64 70 65 72 6D 69 73 73 69 6F 6E 73 06 02 01 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 00 04 66 75 6C 6C 06 02 02 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 00 07 64 65 66 61 75 6C 74 06 40 03 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 00 06 08 04 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 00 A2 F7 F2 DD 05 C0 82 EA 0D
Received: DOWNLOAD CHANGESET(server_version=6, client_version=0, origin_timestamp=119025058030, origin_file_ident=2, original_changeset_size=215, changeset_size=215)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 05 6F 77 6E 65 72 3F 04 09 63 72 65 61 74 65 64 41 74 00 00 04 BD F9 DE AC C3 D1 DF 9F D0 01 F7 EC A4 D8 9A 88 A5 A3 EB 01 02 10 2F 5F 5F 63 6F 6E 66 69 67 75 72 61 74 69 6F 6E 06 02 01 BD F9 DE AC C3 D1 DF 9F D0 01 F7 EC A4 D8 9A 88 A5 A3 EB 01 00 04 66 75 6C 6C 06 02 02 BD F9 DE AC C3 D1 DF 9F D0 01 F7 EC A4 D8 9A 88 A5 A3 EB 01 00 07 64 65 66 61 75 6C 74 06 40 03 BD F9 DE AC C3 D1 DF 9F D0 01 F7 EC A4 D8 9A 88 A5 A3 EB 01 00 06 08 04 BD F9 DE AC C3 D1 DF 9F D0 01 F7 EC A4 D8 9A 88 A5 A3 EB 01 00 A2 F7 F2 DD 05 80 87 A7 0E
Received: DOWNLOAD CHANGESET(server_version=7, client_version=0, origin_timestamp=119025058068, origin_file_ident=2, original_changeset_size=180, changeset_size=180)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 8E C8 AA AB FC ED C0 8E EB 01 C1 AC DB FD BE E9 C9 A9 0C 02 07 5F 5F 61 64 6D 69 6E 06 01 01 8E C8 AA AB FC ED C0 8E EB 01 C1 AC DB FD BE E9 C9 A9 0C 00 01 00 02 04 02 00 00 06 02 03 02 00 00 05 72 65 61 6C 6D 06 02 04 02 00 00 07 5F 5F 61 64 6D 69 6E 00 00 01 05 8E C8 AA AB FC ED C0 8E EB 01 C1 AC DB FD BE E9 C9 A9 0C 02 0E 0C 00 00 02 02 00
Received: DOWNLOAD CHANGESET(server_version=8, client_version=0, origin_timestamp=119025058091, origin_file_ident=2, original_changeset_size=164, changeset_size=164)
Changeset: 3F 00 0A 50 65 72 6D 69 73 73 69 6F 6E 3F 01 04 75 73 65 72 3F 02 09 52 65 61 6C 6D 46 69 6C 65 3F 03 09 72 65 61 6C 6D 46 69 6C 65 3F 04 07 6D 61 79 52 65 61 64 3F 05 08 6D 61 79 57 72 69 74 65 3F 06 09 6D 61 79 4D 61 6E 61 67 65 3F 07 09 75 70 64 61 74 65 64 41 74 00 00 04 02 00 00 06 40 01 02 00 00 06 0C 03 02 00 00 02 B2 F8 DA D1 D7 8D 8F FF C7 01 BD EE F4 A5 FA DB D4 C2 FC 01 06 01 04 02 00 00 01 06 01 05 02 00 00 00 06 01 06 02 00 00 00 06 08 07 02 00 00 A2 F7 F2 DD 05 C0 99 B2 2B
Received: DOWNLOAD CHANGESET(server_version=9, client_version=0, origin_timestamp=119025058092, origin_file_ident=2, original_changeset_size=163, changeset_size=163)
Changeset: 3F 00 0A 50 65 72 6D 69 73 73 69 6F 6E 3F 01 04 75 73 65 72 3F 02 09 52 65 61 6C 6D 46 69 6C 65 3F 03 09 72 65 61 6C 6D 46 69 6C 65 3F 04 07 6D 61 79 52 65 61 64 3F 05 08 6D 61 79 57 72 69 74 65 3F 06 09 6D 61 79 4D 61 6E 61 67 65 3F 07 09 75 70 64 61 74 65 64 41 74 00 00 04 02 01 00 06 40 01 02 01 00 06 0C 03 02 01 00 02 D5 C0 D0 E0 A8 C1 8C EB EE 01 9A F3 F6 F5 D9 BE D2 99 37 06 01 04 02 01 00 01 06 01 05 02 01 00 00 06 01 06 02 01 00 00 06 08 07 02 01 00 A2 F7 F2 DD 05 80 9E EF 2B
Received: DOWNLOAD CHANGESET(server_version=10, client_version=0, origin_timestamp=119025058119, origin_file_ident=2, original_changeset_size=237, changeset_size=237)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 82 AD AB 8D A8 BD E3 D4 D9 01 FC DA CA A1 C6 CA F6 F0 EF 00 02 0B 2F 5F 5F 70 61 73 73 77 6F 72 64 06 02 01 82 AD AB 8D A8 BD E3 D4 D9 01 FC DA CA A1 C6 CA F6 F0 EF 00 00 04 66 75 6C 6C 06 02 02 82 AD AB 8D A8 BD E3 D4 D9 01 FC DA CA A1 C6 CA F6 F0 EF 00 00 07 64 65 66 61 75 6C 74 06 0C 04 82 AD AB 8D A8 BD E3 D4 D9 01 FC DA CA A1 C6 CA F6 F0 EF 00 00 03 8E C8 AA AB FC ED C0 8E EB 01 C1 AC DB FD BE E9 C9 A9 0C 06 08 05 82 AD AB 8D A8 BD E3 D4 D9 01 FC DA CA A1 C6 CA F6 F0 EF 00 00 A2 F7 F2 DD 05 C0 97 DF 38
Received: DOWNLOAD CHANGESET(server_version=11, client_version=0, origin_timestamp=119025058319, origin_file_ident=2, original_changeset_size=203, changeset_size=203)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 F5 B4 A5 81 FC F6 F9 EC C5 00 A8 A5 E5 DA ED F8 FD F7 E5 00 02 0B 72 65 61 6C 6D 2D 61 64 6D 69 6E 06 01 01 F5 B4 A5 81 FC F6 F9 EC C5 00 A8 A5 E5 DA ED F8 FD F7 E5 00 00 01 00 02 04 02 01 00 06 02 03 02 01 00 11 6A 77 74 2F 63 65 6E 74 72 61 6C 2D 6F 77 6E 65 72 06 02 04 02 01 00 0B 72 65 61 6C 6D 2D 61 64 6D 69 6E 00 00 01 05 F5 B4 A5 81 FC F6 F9 EC C5 00 A8 A5 E5 DA ED F8 FD F7 E5 00 02 0E 0C 00 00 02 02 01
Received: DOWNLOAD CHANGESET(server_version=12, client_version=0, origin_timestamp=119025076163, origin_file_ident=2, original_changeset_size=243, changeset_size=243)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 E7 AB C7 A5 E1 B6 BF C4 E9 01 D3 B0 F1 FF C9 F1 B1 BD D0 01 02 1F 73 79 73 74 65 6D 2D 61 63 63 65 73 73 69 62 69 6C 69 74 79 2D 74 65 73 74 73 2D 75 73 65 72 06 01 01 E7 AB C7 A5 E1 B6 BF C4 E9 01 D3 B0 F1 FF C9 F1 B1 BD D0 01 00 00 00 02 04 02 02 00 06 02 03 02 02 00 11 6A 77 74 2F 63 65 6E 74 72 61 6C 2D 61 64 6D 69 6E 06 02 04 02 02 00 1F 73 79 73 74 65 6D 2D 61 63 63 65 73 73 69 62 69 6C 69 74 79 2D 74 65 73 74 73 2D 75 73 65 72 00 00 01 05 E7 AB C7 A5 E1 B6 BF C4 E9 01 D3 B0 F1 FF C9 F1 B1 BD D0 01 02 0E 0C 00 00 02 02 02
Received: DOWNLOAD CHANGESET(server_version=13, client_version=0, origin_timestamp=119025559655, origin_file_ident=2, original_changeset_size=203, changeset_size=180)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 02 20 35 38 37 65 37 33 38 30 38 36 30 34 39 37 66 37 35 32 37 38 65 30 32 39 64 35 37 33 39 37 63 39 00 02 04 02 03 00 06 02 03 02 03 00 08 70 61 73 73 77 6F 72 64 06 02 04 02 03 00 05 61 64 6D 69 6E 00 00 01 05 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 02 0E 0C 00 00 02 02 03
Received: DOWNLOAD CHANGESET(server_version=14, client_version=0, origin_timestamp=119118101955, origin_file_ident=5, original_changeset_size=42, changeset_size=42)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 00 00 06 01 01 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 00 01
Received: DOWNLOAD CHANGESET(server_version=15, client_version=0, origin_timestamp=119118127936, origin_file_ident=2, original_changeset_size=322, changeset_size=322)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 99 F1 D7 F8 83 8F 9D 9C C3 01 96 F3 C4 AC C6 B4 B3 89 B0 01 02 DC 00 2F 64 65 66 61 75 6C 74 2F 5F 5F 70 61 72 74 69 61 6C 2F 35 38 37 65 37 33 38 30 38 36 30 34 39 37 66 37 35 32 37 38 65 30 32 39 64 35 37 33 39 37 63 39 2F 64 39 32 66 32 64 30 34 65 61 36 37 64 62 65 30 33 66 65 30 32 39 36 63 63 33 33 38 65 62 38 63 61 35 37 32 66 31 61 37 06 02 01 99 F1 D7 F8 83 8F 9D 9C C3 01 96 F3 C4 AC C6 B4 B3 89 B0 01 00 07 70 61 72 74 69 61 6C 06 02 02 99 F1 D7 F8 83 8F 9D 9C C3 01 96 F3 C4 AC C6 B4 B3 89 B0 01 00 07 64 65 66 61 75 6C 74 06 0C 04 99 F1 D7 F8 83 8F 9D 9C C3 01 96 F3 C4 AC C6 B4 B3 89 B0 01 00 03 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 06 08 05 99 F1 D7 F8 83 8F 9D 9C C3 01 96 F3 C4 AC C6 B4 B3 89 B0 01 00 AF CE F8 DD 05 80 F4 A8 BE 03
Received: DOWNLOAD CHANGESET(server_version=16, client_version=0, origin_timestamp=119120628443, origin_file_ident=2, original_changeset_size=317, changeset_size=317)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 A6 C0 A4 C6 AA A3 E3 EC 2F 99 B7 CE BF D8 9E A6 CA C0 01 02 DC 00 2F 64 65 66 61 75 6C 74 2F 5F 5F 70 61 72 74 69 61 6C 2F 35 38 37 65 37 33 38 30 38 36 30 34 39 37 66 37 35 32 37 38 65 30 32 39 64 35 37 33 39 37 63 39 2F 37 65 35 36 38 34 36 33 36 66 39 63 62 31 32 31 35 32 35 63 64 62 66 38 31 32 33 39 31 32 64 36 31 30 66 39 62 38 62 30 06 02 01 A6 C0 A4 C6 AA A3 E3 EC 2F 99 B7 CE BF D8 9E A6 CA C0 01 00 07 70 61 72 74 69 61 6C 06 02 02 A6 C0 A4 C6 AA A3 E3 EC 2F 99 B7 CE BF D8 9E A6 CA C0 01 00 07 64 65 66 61 75 6C 74 06 0C 04 A6 C0 A4 C6 AA A3 E3 EC 2F 99 B7 CE BF D8 9E A6 CA C0 01 00 03 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 06 08 05 A6 C0 A4 C6 AA A3 E3 EC 2F 99 B7 CE BF D8 9E A6 CA C0 01 00 F4 E1 F8 DD 05 C0 C9 9E D3 01
Received: DOWNLOAD CHANGESET(server_version=17, client_version=0, origin_timestamp=119125943861, origin_file_ident=2, original_changeset_size=237, changeset_size=237)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 FB FF AB CD 89 DD 94 96 9C 01 D3 C3 DC DE BF E6 ED A0 D6 01 02 20 62 36 39 30 65 32 37 31 30 62 37 39 37 34 64 63 37 34 35 32 36 32 62 34 66 61 62 30 30 35 36 37 06 01 01 FB FF AB CD 89 DD 94 96 9C 01 D3 C3 DC DE BF E6 ED A0 D6 01 00 00 00 02 04 02 04 00 06 02 03 02 04 00 09 61 6E 6F 6E 79 6D 6F 75 73 06 02 04 02 04 00 20 30 37 31 62 32 66 35 38 33 66 35 35 31 36 34 35 34 30 32 35 64 61 37 33 62 33 66 63 62 30 63 62 00 00 01 05 FB FF AB CD 89 DD 94 96 9C 01 D3 C3 DC DE BF E6 ED A0 D6 01 02 0E 0C 00 00 02 02 04
Received: DOWNLOAD CHANGESET(server_version=18, client_version=0, origin_timestamp=119125944405, origin_file_ident=2, original_changeset_size=319, changeset_size=319)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 C0 84 EF F4 9A DF 9A 8F 3A F9 BB AC E9 8C B7 CB B9 E0 00 02 DC 00 2F 64 65 66 61 75 6C 74 2F 5F 5F 70 61 72 74 69 61 6C 2F 62 36 39 30 65 32 37 31 30 62 37 39 37 34 64 63 37 34 35 32 36 32 62 34 66 61 62 30 30 35 36 37 2F 63 61 39 38 33 37 30 61 37 64 32 37 65 36 65 66 31 35 64 30 32 33 62 61 61 39 61 38 64 39 61 66 65 37 30 65 39 61 32 35 06 02 01 C0 84 EF F4 9A DF 9A 8F 3A F9 BB AC E9 8C B7 CB B9 E0 00 00 07 70 61 72 74 69 61 6C 06 02 02 C0 84 EF F4 9A DF 9A 8F 3A F9 BB AC E9 8C B7 CB B9 E0 00 00 07 64 65 66 61 75 6C 74 06 0C 04 C0 84 EF F4 9A DF 9A 8F 3A F9 BB AC E9 8C B7 CB B9 E0 00 00 03 FB FF AB CD 89 DD 94 96 9C 01 D3 C3 DC DE BF E6 ED A0 D6 01 06 08 05 C0 84 EF F4 9A DF 9A 8F 3A F9 BB AC E9 8C B7 CB B9 E0 00 00 B8 8B F9 DD 05 C0 9E 8F C1 01
Received: DOWNLOAD CHANGESET(server_version=19, client_version=0, origin_timestamp=119221571875, origin_file_ident=2, original_changeset_size=237, changeset_size=237)
Changeset: 3F 00 04 55 73 65 72 3F 01 07 69 73 41 64 6D 69 6E 3F 02 07 41 63 63 6F 75 6E 74 3F 03 08 70 72 6F 76 69 64 65 72 3F 04 0A 70 72 6F 76 69 64 65 72 49 64 3F 05 08 61 63 63 6F 75 6E 74 73 00 00 04 FF E6 E6 8D A6 9F DC 85 B8 01 CC D9 B6 E9 B8 99 A4 98 DF 01 02 20 66 39 36 62 35 34 36 37 66 35 38 64 63 61 37 36 66 36 64 65 64 66 30 62 36 34 65 31 34 37 32 38 06 01 01 FF E6 E6 8D A6 9F DC 85 B8 01 CC D9 B6 E9 B8 99 A4 98 DF 01 00 00 00 02 04 02 05 00 06 02 03 02 05 00 09 61 6E 6F 6E 79 6D 6F 75 73 06 02 04 02 05 00 20 62 31 64 34 61 30 32 32 65 37 34 33 33 65 31 37 61 36 37 30 39 32 63 33 66 66 30 36 34 65 36 64 00 00 01 05 FF E6 E6 8D A6 9F DC 85 B8 01 CC D9 B6 E9 B8 99 A4 98 DF 01 02 0E 0C 00 00 02 02 05
Received: DOWNLOAD CHANGESET(server_version=20, client_version=0, origin_timestamp=119221573405, origin_file_ident=2, original_changeset_size=319, changeset_size=319)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 C0 E3 A0 CD C2 D2 E7 AD FD 01 A8 EB B2 F0 AC A7 FB 97 34 02 DC 00 2F 64 65 66 61 75 6C 74 2F 5F 5F 70 61 72 74 69 61 6C 2F 66 39 36 62 35 34 36 37 66 35 38 64 63 61 37 36 66 36 64 65 64 66 30 62 36 34 65 31 34 37 32 38 2F 33 33 61 31 62 62 30 64 62 63 33 61 34 64 65 39 65 65 63 63 66 34 62 63 34 38 61 62 63 39 32 62 32 61 37 38 61 61 37 30 06 02 01 C0 E3 A0 CD C2 D2 E7 AD FD 01 A8 EB B2 F0 AC A7 FB 97 34 00 07 70 61 72 74 69 61 6C 06 02 02 C0 E3 A0 CD C2 D2 E7 AD FD 01 A8 EB B2 F0 AC A7 FB 97 34 00 07 64 65 66 61 75 6C 74 06 0C 04 C0 E3 A0 CD C2 D2 E7 AD FD 01 A8 EB B2 F0 AC A7 FB 97 34 00 03 FF E6 E6 8D A6 9F DC 85 B8 01 CC D9 B6 E9 B8 99 A4 98 DF 01 06 08 05 C0 E3 A0 CD C2 D2 E7 AD FD 01 A8 EB B2 F0 AC A7 FB 97 34 00 C5 F6 FE DD 05 C0 9E 8F C1 01
Received: DOWNLOAD CHANGESET(server_version=21, client_version=0, origin_timestamp=119442393401, origin_file_ident=2, original_changeset_size=317, changeset_size=317)
Changeset: 3F 00 09 52 65 61 6C 6D 46 69 6C 65 3F 01 09 72 65 61 6C 6D 54 79 70 65 3F 02 09 73 79 6E 63 4C 61 62 65 6C 3F 03 04 55 73 65 72 3F 04 05 6F 77 6E 65 72 3F 05 09 63 72 65 61 74 65 64 41 74 00 00 04 D6 CB E6 D1 80 E9 B3 F3 CD 01 99 82 B2 C2 A8 95 C7 F2 15 02 DC 00 2F 64 65 66 61 75 6C 74 2F 5F 5F 70 61 72 74 69 61 6C 2F 35 38 37 65 37 33 38 30 38 36 30 34 39 37 66 37 35 32 37 38 65 30 32 39 64 35 37 33 39 37 63 39 2F 31 61 38 64 30 31 32 30 30 65 36 64 31 38 35 63 31 64 66 62 31 38 37 64 66 64 31 61 31 39 62 36 65 64 62 36 33 35 34 62 06 02 01 D6 CB E6 D1 80 E9 B3 F3 CD 01 99 82 B2 C2 A8 95 C7 F2 15 00 07 70 61 72 74 69 61 6C 06 02 02 D6 CB E6 D1 80 E9 B3 F3 CD 01 99 82 B2 C2 A8 95 C7 F2 15 00 07 64 65 66 61 75 6C 74 06 0C 04 D6 CB E6 D1 80 E9 B3 F3 CD 01 99 82 B2 C2 A8 95 C7 F2 15 00 03 CA F1 CD DC 8C BF 9C DD 05 8F FD 81 EC E5 E0 A8 8C 3F 06 08 05 D6 CB E6 D1 80 E9 B3 F3 CD 01 99 82 B2 C2 A8 95 C7 F2 15 00 D9 B3 8C DE 05 C0 8C 9B BF 01
Connection[1]: Session[1]: Received: DOWNLOAD(download_server_version=21, download_client_version=0, latest_server_version=21, latest_server_version_salt=7217337837575967989, upload_client_version=0, upload_server_version=0, downloadable_bytes=4920, num_changesets=21, ...)
Using already open Realm file: Path\realm-object-server\listener\realms.realm
I am trying to read files in a directory, for each file I am converting it into bytes array and appending everything in combinedBuffer array. Now I want to add all bytes buffer in combinedBuffer to finalBuffer, But I am not able to achieve this, it just iterate over the first bytes buffer in combinedBuffer rather than iterating over the entire combinedBuffer Array.
fileRead = async function(file){
const testFolder = './items/';
var dirFiles = [] // dirFiles Array
fs.readdirSync(testFolder).forEach(file => {
dirFiles.push(file)
})
dirFiles.sort(compareBasedonInt) //Natural Compare is to sort files in sampleFile1, SampleFile2.
var combinedBuffer = []
dirFiles.forEach(function(file){
var eachfileBuffer= fs.readFileSync('./items/'+file) //eachfileBuffer is the bytes buffer which we get after reading the file
combinedBuffer.push(eachfileBuffer)
})
var finalbuffer = Buffer.concat(combinedBuffer)
console.log("final buffer", finalbuffer) // finalBuffer shows just first element of combinedBuffer
console.log("combinedBuffer", combinedBuffer) // shows the array of all the bytes buffer
}
Output
combinedBuffer [ <Buffer 2f 51 40 42 0b 0a 53 0c 4a 25 05 55 7f 06 32 79 0d 50 47 0c 5d 3e 59 0b 51 54 40 5c 4a 5e 53 4f 15 05 4d 1f 41 4e 23 07 1f 52 5f 1f 52 48 14 52 4e 52 ... >,
<Buffer 19 42 01 0d 46 59 4a 58 1a 38 60 06 4a 11 2d 5c 70 65 2e 5a 17 0f 54 14 09 2a 05 14 38 34 47 0f 0e 42 5f 26 56 49 07 19 12 11 5e 4e 01 55 0b 41 26 72 ... >,
<Buffer 17 1a 11 5d 4d 19 1e 44 45 45 57 5f 05 49 19 1a 18 2a 23 27 46 00 47 45 17 45 1c 4f 5b 4f 4b 53 45 55 3e 4b 1d 08 4b 15 1a 1c 18 66 50 1a 4f 55 18 05 ... >,
<Buffer 44 0a 06 50 16 10 58 1b 15 40 07 22 58 0b 51 4e 08 07 46 6f 7c 66 12 57 4e 1d 1b 09 04 4a 40 4f 1e 11 5f 41 41 74 62 5f 76 43 5e 0d 1a 01 1a 0c 7d 44 ... >,
<Buffer 3c 09 5f 5c 6c 15 5c 02 15 5d 00 40 03 09 46 54 49 16 5c 5a ff 9f a2 45 43 00 46 46 65 1b 11 5c 5d 54 29 46 44 07 02 14 45 4b 31 6a 3a 4d 0a 58 18 47 ... >,
<Buffer 6d 4a 19 1b 85 bd ec 0c 0f 0f 4c 4a 41 08 09 1b 4f 0b 0a 1d 41 11 53 4b 1e 41 49 1e ce aa ad 11 22 1d 0f 52 46 1b 7a 0b 0e 15 1e 41 53 02 10 19 4f 01 ... >,
<Buffer 03 58 69 48 04 5f 52 02 08 56 1f 07 76 4e 1d 53 12 5e 5e 58 47 0a 5a 44 77 06 16 5e 03 4a 4d 56 56 01 1f 0b 0c 0c 40 45 0e 0c 4e 08 1b 12 1a 45 4e 50 ... >,
<Buffer 4d 5c 0c 4e 1d c2 a2 f9 1b 11 16 5f 52 00 0c 02 54 40 4d 17 0d 58 4c 1b 24 5b 12 41 4b 47 1a 0a 43 50 7c 6d 34 46 42 5a 43 42 43 38 1b 4b 53 57 5f 43 ... >,
<Buffer 49 4e 1a 13 1c 19 0b 0a 5d 19 41 46 06 14 15 51 15 15 56 57 1c 5d 09 1e 00 41 4a 6f 13 0a 60 60 64 16 4c 01 1e 49 46 0e 50 1d 51 56 5c 09 0e 37 16 12 ... >,
<Buffer 58 1d 4f 5b 4c 33 09 4f 08 19 04 1b 69 7e 2d 5d 22 95 be 8b 14 1b 76 4b 07 21 1f 4f 05 4b 30 2e 02 57 07 00 4d 5f 45 1c 08 39 37 37 41 47 25 09 05 4d ... >,
<Buffer 58 42 43 1f 5e 1e 01 17 54 04 52 1c 1a 04 42 48 52 48 3e 03 05 12 4c 16 5a 49 7e 14 49 53 1a 6f 6f 2f 46 54 54 07 00 7a 23 0a 1c 3b 56 0f 73 0a 00 0b ... >]
finalbuffer <Buffer 2f 51 40 42 0b 0a 53 0c 4a 25 05 55 7f 06 32 79 0d 50 47 0c 5d 3e 59 0b 51 54 40 5c 4a 5e 53 4f 15 05 4d 1f 41 4e 23 07 1f 52 5f 1f 52 48 14 52 4e 52 ... >
I'm developing a BitTorrent client and I'm having trouble getting answers to my piece requests.
To debug, I followed a conversation between uTorrent and transmission using Wireshark and tried to imitate same conversation in my client. But it still doesn't work.
Below is an example conversation happening between my client and transmission. (my client also using -TR--- prefixed peer id, this is only for testing purposes and I'll change this)
Indented messages are coming from transmission, others are messages my client send.
Note that this conversation is not exactly same as how uTorrent and transmission would talk, because my client does not support fast extension yet. (BEP 6)
(Output is taken from Wireshark, lines starting with -- are my comments)
00000000 13 42 69 74 54 6f 72 72 65 6e 74 20 70 72 6f 74 .BitTorr ent prot
00000010 6f 63 6f 6c 00 00 00 00 00 10 00 00 f8 9e 0d fd ocol.... ........
00000020 9c fc a8 52 d9 7a d6 af a4 4d 8f 73 ce 70 b6 36 ...R.z.. .M.s.p.6
00000030 2d 54 52 32 38 34 30 2d 36 68 61 67 76 30 73 70 -TR2840- 6hagv0sp
00000040 34 67 37 6b 4g7k
-- ^ my handshake to transmission
00000000 13 42 69 74 54 6f 72 72 65 6e 74 20 70 72 6f 74 .BitTorr ent prot
00000010 6f 63 6f 6c 00 00 00 00 00 10 00 04 f8 9e 0d fd ocol.... ........
00000020 9c fc a8 52 d9 7a d6 af a4 4d 8f 73 ce 70 b6 36 ...R.z.. .M.s.p.6
00000030 2d 54 52 32 38 34 30 2d 72 73 35 68 71 67 32 68 -TR2840- rs5hqg2h
00000040 6e 70 68 64 nphd
-- ^ transmission answers to my handshake
00000044 00 00 00 1a 14 00 64 31 3a 6d 64 31 31 3a 75 74 ......d1 :md11:ut
00000054 5f 6d 65 74 61 64 61 74 61 69 33 65 65 65 _metadat ai3eee
-- ^ my extended handshake to transmission
00000044 00 00 00 72 14 00 64 31 3a 65 69 31 65 31 3a 6d ...r..d1 :ei1e1:m
00000054 64 31 31 3a 75 74 5f 6d 65 74 61 64 61 74 61 69 d11:ut_m etadatai
00000064 33 65 65 31 33 3a 6d 65 74 61 64 61 74 61 5f 73 3ee13:me tadata_s
00000074 69 7a 65 69 31 34 37 65 31 3a 70 69 35 31 34 31 izei147e 1:pi5141
00000084 33 65 34 3a 72 65 71 71 69 35 31 32 65 31 31 3a 3e4:reqq i512e11:
00000094 75 70 6c 6f 61 64 5f 6f 6e 6c 79 69 31 65 31 3a upload_o nlyi1e1:
000000A4 76 31 37 3a 54 72 61 6e 73 6d 69 73 73 69 6f 6e v17:Tran smission
000000B4 20 32 2e 38 34 65 00 00 00 02 05 80 2.84e.. ....
-- ^ transmission's extended handshake and bitfield
000000C0 00 00 00 01 01 .....
-- ^ transmission unchokes me
00000062 00 00 00 01 02 .....
-- ^ my interested message
00000067 00 00 00 0d 06 00 00 00 00 00 00 00 00 00 00 40 ........ .......#
00000077 00 .
-- ^ piece request
-- no answers ...
00000078 00 00 00 0d 06 00 00 00 00 00 00 00 00 00 00 40 ........ .......#
00000088 00 .
-- ^ piece request again, with 10 seconds interval
-- again no answers...
00000089 00 00 00 0d 06 00 00 00 00 00 00 00 00 00 00 40 ........ .......#
00000099 00 .
-- ^ piece request again, with 10 seconds interval
-- no answers...
Any ideas what am I doing wrong?
Thanks.
EDIT: I updated my client to send unchoke just after sending interested, but I'm still having same problem...
The problem was that I was requesting a piece bigger than the total size of the torrent.
The torrent I was using has 2 files, in total of 12KB. However the piece size of the torrent is 16KB and I was requesting 16KB piece even though the torrent file has only one piece and it's 12 KB in total.
After requesting 12KB instead of 16KB, the problem was solved.
I am trying to write a tcp server to get the data from Heacent 908 GPS tracker. After establishing the connection from the tracker I am getting the following buffer output.
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a>
I am not sure how to decode this data into proper readable format.
Note: Off course I have tried to reach the manufacture but they are not responding at all.
What type of possible encoding formats are there for TCP protocol?
On next day I got data like this
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a>
<Buffer 78 78 1f 12 0e 02 14 13 01 14 c8 03 5f a6 50 07 f7 f8 c1 32 35 39 01 9a 04 0f a2 00 b0 5a 00 1a 9b 7a 0d 0a>
<Buffer 78 78 1f 12 0e 02 14 13 01 1e c8 03 5f ad bc 07 f7 f0 76 41 35 40 01 9a 04 0f a2 00 b0 5a 00 1b b6 31 0d 0a>
Something is being changed but not sure what is it...
You ask what possible encoding formats there are for TCP. That's a bit of an odd question: there are an unbounded number of encoding formats using TCP as the underlying protocol. But no matter, we can try to figure out this one!
You've posted some sample messages. Let's see if we can translate them:
byte 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
rev 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
----------------------------------------------------------
hex 78 78 0d 01 03 87 11 31 20 86 48 42 00 06 64 be 0d 0a
text x x \r -- -- -- -- 1 -- H B -- -- d -- \r \n
dec 13 1 3 17 0 6 100 13 10
be32 [218170247] [288432262] [ 419006]
----------------------------------------------------------
hex 78 78 0d 01 03 87 11 31 20 86 48 42 00 07 75 37 0d 0a
text -- u 7
dec 7 117 55
be32 [ 488759]
----------------------------------------------------------
hex 78 78 0d 01 03 87 11 31 20 86 48 42 00 08 8d c0 0d 0a
text -- -- --
dec 8 141
be32 [ 560576]
----------------------------------------------------- byte 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
hex 78 78 1f 12 0e 02 14 13 01 14 c8 03 5f a6 50 07 f7 f8 c1 32 35 39 01 9a 04 0f a2 00 b0 5a 00 1a 9b 7a 0d 0a
text -- -- -- -- -- -- -- -- -- -- _ -- P -- -- -- -- 2 5 9 -- -- -- -- -- -- -- -- -- xx -- z \r \n
----------------------------------------------------------
hex 78 78 1f 12 0e 02 14 13 01 1e c8 03 5f ad bc 07 f7 f0 76 41 35 40 01 9a 04 0f a2 00 b0 5a 00 1b b6 31 0d 0a
text -- -- -- A 5 # -- xx -- 1
Some potentially interesting facts:
Starts with "xx\r\01" which more or less seems like a possible header. But later messages start with "xx" and something else. Anyway, given that NMEA has a prefix of "GP" I wouldn't be shocked if these devices used "xx" for "something that's not NMEA."
Has "HB" in the middle, which could mean "heartbeat" since this is repeating, perhaps waiting for a reply from the server.
Ends with "\r\n" which is a common line ending (on Windows in particular), though the rest doesn't appear to be entirely textual.
The earlier messages are 18 bytes long and the later ones 36 bytes. A guess would be the short ones are status updates or heartbeats and the long ones are actual location information. 36 bytes is enough if we figure:
4 byte latitude: 24 bits if you pinch (see), 25-32 bits more likely
4 byte longitude: same as latitude
6 byte timestamp: 39 bits if using epoch time with centiseconds, 32/48/64 bits more likely
2 byte altitude: I suspect this device doesn't publish altitude at all, given some of the docs
So I think what is going on is that these messages you see are just the device "pinging" the server and waiting for a response. What sort of response? Well, you could try to brute force it, but far, far easier would be to set up a bridge in your program that takes whatever it receives from the device, sends it to the manufacturer's server, and does the same thing in reverse for the responses to the device. This way you will quickly be able to gather a corpus of valid messages which will be very helpful if we really do need to reverse engineer this thing. Or if you're lucky it will turn out to use some standard protocol like NMEA after negotiating the initial session.
Edit: now that you've given us more messages from the device, we can see that it does seem to send something else with variable content. Maybe that's the location data, but I don't have time to try to reverse engineer it right now. One idea is to physically move the unit from west to east or north to south and capture the messages it sends during that time, to try to isolate which parts of the messages are the longitude and which are the latitude (and perhaps timestamp too).
I think it's fairly clear that the first two bytes are "xx" as a header, and the last two are "\r\n" as a terminator. That leaves 32 bytes of payload in the longer messages, all of which appears to be binary data.
It's the GT06 protocol and you can find it's specs here:
http://www.traccar.org/devices/
http://www.traccar.org/docs/protocol.jsp
https://dl.dropboxusercontent.com/s/sqtkulcj51zkria/GT06_GPS_Tracker_Communication_Protocol_v1.8.1.pdf
You can do it this way:
client.on('data', (buffer) => {
const decodedData = buffer.toString('utf8')
console.log(decodedData)
})