docs: messages
This commit is contained in:
Kagami Hiiragi
parent
f619a066c6
commit
96d7074b2d
156
lib/messages.js
156
lib/messages.js
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@ -56,11 +56,33 @@ var randomNonce = bmcrypto.randomBytes(8);
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// TODO(Kagami): User agent and stream numbers size limits per
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// <https://github.com/Bitmessage/PyBitmessage/issues/767>.
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var version = exports.version = {
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/**
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* @typedef {Object} DecodeResult
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* @property {Object} services -
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* [Service]{@link module:bitmessage/structs.ServicesBitfield}
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* features to be enabled for this connection
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* @property {Date} time - Node time
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* @property {string} remoteHost - IPv4/IPv6 address of the node
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* receiving this message
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* @property {number} remotePort - Port of the node receiving this
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* message
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* @property {number} port - Incoming port of the node sending this
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* message
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* @property {Buffer} nonce - Random nonce used to detect connection
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* to self
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* @property {(Array|string|Buffer)} userAgent -
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* [User agent]{@link module:bitmessage/user-agent} of the node
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* @property {number[]} streamNumbers - Streams accepted by the node
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* @property {number} length - Real data length
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* @memberof module:bitmessage/messages.version
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*/
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/**
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* Decode `version` message.
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* NOTE: `nonce` is copied.
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* @param {Buffer} buf - Message
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* @return {Object} Decoded `version` structure.
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* @return {DecodeResult}
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* [Decoded `version` structure.]{@link module:bitmessage/messages.version.DecodeResult}
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*/
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decode: function(buf) {
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var decoded = message.decode(buf);
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@ -69,10 +91,8 @@ var version = exports.version = {
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},
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/**
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* Decode `version` message payload.
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* NOTE: `nonce` is copied.
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* @param {Buffer} buf - Message payload
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* @return {Object} Decoded `version` structure.
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* Decode `version` message payload.
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* The same as [decode]{@link module:bitmessage/messages.version.decode}.
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*/
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decodePayload: function(buf) {
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// 4 + 8 + 8 + 26 + 26 + 8 + (1+) + (1+)
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@ -109,6 +129,24 @@ var version = exports.version = {
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/**
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* Encode `version` message.
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* @param {Object} opts - Version options
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* @param {Object=} opts.services -
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* [Service]{@link module:bitmessage/structs.ServicesBitfield}
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* features to be enabled for this connection (`NODE_NETWORK` by
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* default)
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* @param {Date=} opts.time - Node time (current time by default)
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* @param {string} opts.remoteHost - IPv4/IPv6 address of the node
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* receiving this message
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* @param {number} opts.remotePort - Port of the node receiving this
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* message
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* @param {number=} opts.port - Incoming port of the node (8444 by
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* default)
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* @param {Buffer=} opts.nonce - Random nonce used to detect connection
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* to self (unique per node.js process by default)
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* @param {(Array|string|Buffer)=} opts.userAgent -
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* [User agent]{@link module:bitmessage/user-agent} of the node
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* (bitmessage's by default)
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* @param {Array<number>=} opts.streamNumbers - Streams accepted by the
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* node (1 by default)
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* @return {Buffer} Encoded message.
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*/
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encode: function(opts) {
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@ -118,8 +156,7 @@ var version = exports.version = {
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/**
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* Encode `version` message payload.
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* @param {Object} opts - Version options
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* @return {Buffer} Encoded payload.
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* The same as [encode]{@link module:bitmessage/messages.version.encode}.
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*/
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encodePayload: function(opts) {
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// Deal with default options.
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@ -166,10 +203,19 @@ var version = exports.version = {
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* @static
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*/
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var addr = exports.addr = {
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/**
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* @typedef {Object} DecodeResult
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* @property {Object[]} addrs - List of
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* [decoded `net_addr` structures]{@link module:bitmessage/structs.net_addr.DecodeResult}
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* @property {number} length - Real data length
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* @memberof module:bitmessage/messages.addr
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*/
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/**
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* Decode `addr` message.
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* @param {Buffer} buf - Message
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* @return {Object} Decoded `addr` structure.
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* @return {DecodeResult}
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* [Decoded `addr` structure.]{@link module:bitmessage/messages.addr.DecodeResult}
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*/
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decode: function(buf) {
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var decoded = message.decode(buf);
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@ -179,8 +225,7 @@ var addr = exports.addr = {
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/**
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* Decode `addr` message payload.
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* @param {Buffer} buf - Message payload
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* @return {Object} Decoded `addr` structure.
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* The same as [decode]{@link module:bitmessage/messages.addr.decode}.
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*/
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decodePayload: function(buf) {
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var decoded = structs.var_int.decode(buf);
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@ -202,7 +247,8 @@ var addr = exports.addr = {
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/**
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* Encode `addr` message.
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* @param {Object[]} addrs - Network addresses
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* @param {Object[]} addrs - List of
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* [net_addr encode options]{@link module:bitmessage/structs.net_addr.encode}
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* @return {Buffer} Encoded message.
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*/
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encode: function(addrs) {
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@ -212,8 +258,7 @@ var addr = exports.addr = {
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/**
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* Encode `addr` message payload.
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* @param {Object[]} addrs - Network addresses
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* @return {Buffer} Encoded payload.
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* The same as [encode]{@link module:bitmessage/messages.addr.encode}.
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*/
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encodePayload: function(addrs) {
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assert(addrs.length <= 1000, "Too many address entires");
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@ -231,10 +276,19 @@ var addr = exports.addr = {
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* @static
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*/
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var inv = exports.inv = {
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/**
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* @typedef {Object} DecodeResult
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* @property {Buffer[]} inventory - List of
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* [inventory vectors]{@link module:bitmessage/structs.inv_vect}
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* @property {number} length - Real data length
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* @memberof module:bitmessage/messages.inv
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*/
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/**
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* Decode `inv` message.
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* @param {Buffer} buf - Message
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* @return {Object} Decoded `inv` structure.
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* @return {DecodeResult}
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* [Decoded `inv` structure.]{@link module:bitmessage/messages.inv.DecodeResult}
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*/
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decode: function(buf) {
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var decoded = message.decode(buf);
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@ -244,8 +298,7 @@ var inv = exports.inv = {
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/**
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* Decode `inv` message payload.
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* @param {Buffer} buf - Message payload
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* @return {Object} Decoded `inv` structure.
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* The same as [decode]{@link module:bitmessage/messages.inv.decode}.
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*/
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decodePayload: function(buf) {
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var decoded = structs.var_int.decode(buf);
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@ -267,7 +320,8 @@ var inv = exports.inv = {
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/**
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* Encode `inv` message.
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* @param {Buffer[]} inventory - Inventory vector list
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* @param {Buffer[]} inventory -
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* [Inventory vector]{@link module:bitmessage/structs.inv_vect} list
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* @return {Buffer} Encoded message.
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*/
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encode: function(inventory) {
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@ -277,8 +331,7 @@ var inv = exports.inv = {
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/**
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* Encode `inv` message payload.
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* @param {Buffer[]} inventory - Inventory vector list
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* @return {Buffer} Encoded payload.
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* The same as [encode]{@link module:bitmessage/messages.inv.encode}.
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*/
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encodePayload: function(inventory) {
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assert(inventory.length <= 50000, "Too many inventory entires");
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@ -296,10 +349,19 @@ var inv = exports.inv = {
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* @namespace
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*/
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exports.getdata = objectAssign({}, inv, {
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/**
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* @typedef {Object} DecodeResult
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* @property {Buffer[]} inventory - List of
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* [inventory vectors]{@link module:bitmessage/structs.inv_vect}
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* @property {number} length - Real data length
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* @memberof module:bitmessage/messages.getdata
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*/
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/**
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* Decode `getdata` message.
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* @param {Buffer} buf - Message
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* @return {Object} Decoded `getdata` structure.
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* @return {DecodeResult}
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* [Decoded `getdata` structure.]{@link module:bitmessage/messages.getdata.DecodeResult}
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* @memberof module:bitmessage/messages.getdata
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*/
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decode: function(buf) {
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@ -307,9 +369,18 @@ exports.getdata = objectAssign({}, inv, {
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assert(decoded.command === "getdata", "Bad command");
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return inv.decodePayload(decoded.payload);
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},
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/**
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* Decode `getdata` message payload.
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* The same as [decode]{@link module:bitmessage/messages.getdata.decode}.
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* @function decodePayload
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* @memberof module:bitmessage/messages.getdata
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*/
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/**
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* Encode `getdata` message.
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* @param {Buffer[]} inventory - Inventory vector list
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* @param {Buffer[]} inventory -
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* [Inventory vector]{@link module:bitmessage/structs.inv_vect} list
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* @return {Buffer} Encoded message.
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* @memberof module:bitmessage/messages.getdata
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*/
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@ -317,17 +388,10 @@ exports.getdata = objectAssign({}, inv, {
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var payload = inv.encodePayload(inventory);
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return message.encode("getdata", payload);
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},
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/**
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* Decode `getdata` message payload.
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* @param {Buffer} buf - Message payload
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* @return {Object} Decoded `inv` structure.
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* @function decodePayload
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* @memberof module:bitmessage/messages.getdata
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*/
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/**
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* Encode `getdata` message payload.
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* @param {Buffer[]} inventory - Inventory vector list
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* @return {Buffer} Encoded payload.
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* The same as [encode]{@link module:bitmessage/messages.getdata.encode}.
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* @function encodePayload
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* @memberof module:bitmessage/messages.getdata
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*/
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@ -359,10 +423,24 @@ var error = exports.error = {
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*/
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FATAL: 2,
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/**
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* @typedef {Object} DecodeResult
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* @property {number} fatal - Type of the error
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* @property {number} banTime - The other node informs that it will
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* not accept further connections for this number of seconds
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* @property {?Buffer} vector -
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* [Inventory vector]{@link module:bitmessage/structs.inv_vect}
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* related to the error
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* @property {string} errorText - A human-readable error description
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* @property {number} length - Real data length
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* @memberof module:bitmessage/messages.error
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*/
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/**
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* Decode `error` message.
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* @param {Buffer} buf - Message
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* @return {Object} Decoded `error` structure.
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* @return {DecodeResult}
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* [Decoded `error` structure.]{@link module:bitmessage/messages.error.DecodeResult}
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*/
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decode: function(buf) {
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var decoded = message.decode(buf);
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@ -372,8 +450,7 @@ var error = exports.error = {
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/**
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* Decode `error` message payload.
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* @param {Buffer} buf - Message payload
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* @return {Object} Decoded `error` structure.
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* The same as [decode]{@link module:bitmessage/messages.error.decode}.
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*/
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decodePayload: function(buf) {
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assert(buf.length >= 4, "Buffer is too small");
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@ -413,6 +490,16 @@ var error = exports.error = {
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/**
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* Encode `error` message.
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* @param {Object} opts - Error options
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* @param {number=} opts.fatal - Type of the error
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* ([warning]{@link module:bitmessage/messages.error.WARNING} by
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* default)
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* @param {number=} opts.banTime - Inform the other node, that you
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* will not accept further connections for this number of seconds (0
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* by default)
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* @param {Buffer=} opts.vector - A 32-byte
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* [inventory vector]{@link module:bitmessage/structs.inv_vect}
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* related to the error (empty by default)
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* @param {string} opts.errorText - A human-readable error description
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* @return {Buffer} Encoded message.
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*/
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encode: function(opts) {
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@ -422,8 +509,7 @@ var error = exports.error = {
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/**
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* Encode `error` message payload.
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* @param {Object} opts - Error options
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* @return {Buffer} Encoded payload.
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* The same as [encode]{@link module:bitmessage/messages.error.encode}.
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*/
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encodePayload: function(opts) {
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var fatal = opts.fatal || error.WARNING;
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@ -122,6 +122,7 @@ TcpTransport.prototype._setupClient = function(client, accepted) {
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self.on("message", function(command) {
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if (!established) {
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// TODO: Process version data.
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// TODO: Disconnect if proto version < 3.
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if (command === "version") {
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if (verackSent) {
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return;
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@ -65,6 +65,7 @@ WsTransport.prototype.connect = function(url, protocols) {
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self.on("message", function(command) {
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if (!established) {
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// TODO: Process version data.
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// TODO: Disconnect if proto version < 3.
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if (command === "version") {
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if (verackSent) {
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return;
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@ -121,6 +121,7 @@ WsTransport.prototype._setupClient = function(client, accepted) {
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self.on("message", function(command) {
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if (!established) {
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// TODO: Process version data.
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// TODO: Disconnect if proto version < 3.
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if (command === "version") {
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if (verackSent) {
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return;
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