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Clean example for full identities.

This commit is contained in:
Eric Martindale 2014-10-06 14:00:03 -04:00
parent 4dfe9fd13d
commit dac2acc743
3 changed files with 48 additions and 33 deletions
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16
examples/identity.js
View File

@ -1,14 +1,12 @@
var Identity = require('../lib/identity');
var Keypair = require('../lib/keypair');
var KeyPair = require('../lib/keypair');
var pubkeyhash = new Buffer('3c3fa3d4adcaf8f52d5b1843975e122548269937', 'hex');
var buf = Buffer.concat([new Buffer([0]), pubkeyhash]);
var keypair = new KeyPair().fromRandom();
console.log( 'keypair:' , keypair );
console.log( 'public key:' , keypair.pubkey.toString() );
var keypair = new Keypair();
//var identity = new Identity().fromPubkey( keypair.pubkey );
var identity = new Identity().fromPubkey( keypair.pubkey );
console.log( 'pubkey', keypair.pubkey.toString() );
console.log( 'privkey', keypair.privkey.toString() );
console.log( identity );
console.log( identity.toString() );
console.log( 'identity:' , identity );
console.log( 'identity string:' , identity.toString() );

11
lib/constants.js
View File

@ -1,7 +1,8 @@
exports.mainnet = {
pubkeyhash: 0x00,
identpersist: 0x01,
identity: 0x0f,
identephem: 0x02,
identpersist: 0x01,
privkey: 0x80,
scripthash: 0x05,
bip32pubkey: 0x0488b21e,
@ -10,8 +11,16 @@ exports.mainnet = {
exports.testnet = {
pubkeyhash: 0x6f,
identity: 0x0f,
identephem: 0x02,
identpersist: 0x11,
privkey: 0xef,
scripthash: 0xc4,
bip32pubkey: 0x043587cf,
bip32privkey: 0x04358394,
};
exports.ephemeral = {
prefix: 0x0f,
identity: 0x02
}

54
lib/identity.js
View File

@ -22,28 +22,37 @@ function Identity(buf) {
Identity.prototype.set = function(obj) {
this.hashbuf = obj.hashbuf || this.hashbuf || null;
this.networkstr = obj.networkstr || this.networkstr || 'mainnet';
this.typestr = obj.typestr || this.typestr || 'identephem';
this.networkstr = obj.networkstr || this.networkstr || 'ephemeral';
this.typestr = obj.typestr || this.typestr || 'identity';
return this;
};
Identity.prototype.fromBuffer = function(buf) {
if (buf.length !== 1 + 20)
throw new Error('Identity buffers must be exactly 21 bytes');
var version = buf[0];
// Identities are prefix + type + key
if (buf.length !== 1 + 1 + 20)
throw new Error('Identity buffers must be exactly 22 bytes');
var prefix = buf[0];
var version = buf[1];
if (prefix !== constants['ephemeral'][ prefix ])
throw new Error('Identity buffers must contain an identity prefix (0x0f)');
if (version === constants['mainnet']['identephem']) {
if (version === constants['ephemeral']['identity']) {
this.networkstr = 'ephemeral';
this.typestr = 'identity';
} else if (version === constants['mainnet']['identity']) {
this.networkstr = 'mainnet';
this.typestr = 'identephem';
} else if (version === constants['mainnet']['identpersist']) {
this.networkstr = 'mainnet';
this.typestr = 'identpersist';
this.typestr = 'identity';
} else if (version === constants['testnet']['identity']) {
this.networkstr = 'testnet';
this.typestr = 'identity';
} else {
this.networkstr = 'unknown';
this.typestr = 'unknown';
}
this.hashbuf = buf.slice(1);
this.hashbuf = buf.slice( 2 );
return this;
};
@ -51,16 +60,16 @@ Identity.prototype.fromBuffer = function(buf) {
Identity.prototype.fromHashbuf = function(hashbuf, networkstr, typestr) {
if (hashbuf.length !== 20)
throw new Error('hashbuf must be exactly 20 bytes');
this.hashbuf = hashbuf;
this.networkstr = networkstr || 'mainnet';
this.typestr = typestr || 'identephem';
this.hashbuf = hashbuf;
this.networkstr = networkstr || 'ephemeral';
this.typestr = typestr || 'identity';
return this;
};
Identity.prototype.fromPubkey = function(pubkey, networkstr) {
this.hashbuf = Hash.sha256ripemd160( pubkey.toBuffer() );
this.networkstr = networkstr || 'mainnet';
this.typestr = 'identephem';
this.networkstr = networkstr || 'ephemeral';
this.typestr = 'identity';
return this;
};
@ -71,7 +80,7 @@ Identity.prototype.fromString = function(str) {
Identity.isValid = function(addrstr) {
try {
var address = new Identity().fromString(addrstr);
var address = new Identity().fromString( addrstr );
} catch (e) {
return false;
}
@ -88,21 +97,20 @@ Identity.prototype.isValid = function() {
};
Identity.prototype.toBuffer = function() {
console.log( this.networkstr );
version = new Buffer([constants[this.networkstr][this.typestr]]);
var buf = Buffer.concat([version, this.hashbuf]);
var prefix = new Buffer([ constants[ this.networkstr ][ 'prefix' ] ])
var version = new Buffer([ constants[ this.networkstr ][ this.typestr ] ]);;
var buf = Buffer.concat([ prefix , version, this.hashbuf ]);
return buf;
};
Identity.prototype.toString = function() {
return base58check.encode(this.toBuffer());
return base58check.encode( this.toBuffer() );
};
Identity.prototype.validate = function() {
if (!Buffer.isBuffer(this.hashbuf) || this.hashbuf.length !== 20)
throw new Error('hash must be a buffer of 20 bytes');
if (this.networkstr !== 'mainnet' && this.networkstr !== 'testnet')
if (['ephemeral', 'mainnet', 'testnet'].indexOf( this.networkstr ))
throw new Error('networkstr must be "mainnet" or "testnet"');
if (this.typestr !== 'identephem' && this.typestr !== 'identpersist')
throw new Error('typestr must be "identephem" or "identpersist"');