Updates

src/generic.ts

@@ -9,7 +9,7 @@ export function validateParams(seed: SeedTypes, params: Params) {
   const { seed: s } = pullSeedAndIndex(seed)
 
   if (s == undefined && params.senderPublicKey == undefined)
-    throw 'Please provide either seed or senderPublicKey'
+    throw new Error('Please provide either seed or senderPublicKey')
 }
 
 export interface SeedsAndIndexes {
@@ -23,7 +23,7 @@ export function addProof(tx: WithProofs, proof: string, index?: number) {
   }
 
   if (tx.proofs != undefined && tx.proofs[index] != undefined)
-    throw `Proof at index ${index} is already exists.`
+    throw new Error(`Proof at index ${index} is already exists.`)
 
   tx.proofs = tx.proofs || []
 
@@ -58,7 +58,7 @@ export const pullSeedAndIndex = (seed: SeedTypes): { seed: string, index?: numbe
     return empty
 
   if (isSeedsAndIndexes(seed)) {
-    const keys = Object.keys(seed).map(k => parseInt(k))
+    const keys = Object.keys(seed).map(k => parseInt(k)).filter(k => !isNaN(k))
 
     if (keys == undefined || keys.length == 0)
       return empty
@@ -71,11 +71,12 @@ export const pullSeedAndIndex = (seed: SeedTypes): { seed: string, index?: numbe
       return { seed: seed[keys[0]], index, nextSeed: Object.keys(newSeed).length > 0 ? newSeed : undefined }
   }
   if (isArrayOfSeeds(seed)) {
-    const [, ...newSeed] = seed
-    if (seed.length > 0)
-      return { seed: seed[0], nextSeed: newSeed.length > 0 ? newSeed : undefined }
-
-    return empty
+    return pullSeedAndIndex(
+      Object.entries(seed).filter(([k, v]) => !!v).reduce((acc, next) => {
+        acc[next[0]] = next[1];
+        return acc
+      }, {})
+    )
   }
 
   return { seed: <string>seed }

src/index.ts

@@ -9,3 +9,4 @@ export { transfer } from './transactions/transfer'
 export { alias } from './transactions/alias'
 export { setScript } from './transactions/set-script'
 export { order } from './transactions/order'
+export { signTx } from './signTx'

src/signTx.ts

@@ -0,0 +1,39 @@
+import { TransactionType, Tx } from './transactions'
+import { SeedTypes } from "./generic";
+import { issue } from "./transactions/issue";
+import { transfer } from "./transactions/transfer";
+import { reissue } from "./transactions/reissue";
+import { burn } from "./transactions/burn";
+import { lease } from "./transactions/lease";
+import { cancelLease } from "./transactions/cancel-lease";
+import { data } from "./transactions/data";
+import { massTransfer } from "./transactions/mass-transfer";
+import { alias } from "./transactions/alias";
+import { setScript } from "./transactions/set-script";
+
+export function signTx(seed: SeedTypes, tx: Tx): Tx {
+  switch (tx.type) {
+    case TransactionType.Issue:
+      return issue(seed, tx);
+    case TransactionType.Transfer:
+      return transfer(seed, tx);
+    case TransactionType.Reissue:
+      return reissue(seed, tx);
+    case TransactionType.Burn:
+      return burn(seed, tx);
+    case TransactionType.Lease:
+      return lease(seed, tx);
+    case TransactionType.CancelLease:
+      return cancelLease(seed, tx);
+    case TransactionType.Alias:
+      return alias(seed, tx);
+    case TransactionType.MassTransfer:
+      return massTransfer(seed, tx);
+    case TransactionType.Data:
+      return data(seed, tx);
+    case TransactionType.SetScript:
+      return setScript(seed, tx);
+    default:
+      throw new Error(`Unknown tx type: ${tx!.type}`)
+  }
+}

test/set-script.spec.ts

@@ -1,11 +1,23 @@
 import { describe, it } from 'mocha';
 import { expect } from 'chai';
-import { BASE58_STRING, BASE64_STRING, BYTES, concat, LEN, LONG, OPTION, SHORT, veriySignature } from "waves-crypto";
+import {
+  BASE58_STRING,
+  BASE64_STRING,
+  BYTES,
+  concat,
+  LEN,
+  LONG,
+  OPTION,
+  SHORT,
+  verifySignature,
+  publicKey,
+} from "waves-crypto";
 import { setScript } from '../src';
 import { SetScriptTransaction } from "../src/transactions";
 
 describe('setScript', () => {
   const seed = 'test seed';
+  const seed2 = 'test seed 2'
   const compiledContract = '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'
 
   it('Should generate correct signed setScript transaction', () => {
@@ -15,26 +27,61 @@ describe('setScript', () => {
     expect(validateSetScriptTx(signedTx)).to.be.true
   });
 
+  it('Should generate correct signed setScript transaction with multiple signers via array', () => {
+    const txParams = { script: compiledContract };
+    const signedTx = setScript([null, seed, seed2], txParams);
+
+    expect(signedTx.proofs[0]).to.be.null
+    expect(validateSetScriptTx(signedTx, 1)).to.be.true
+    expect(validateSetScriptTx(signedTx, 2, publicKey(seed2))).to.be.true
+  });
+
+  it('Should generate correct signed setScript transaction with multiple signers via object', () => {
+    const txParams = { script: compiledContract };
+    const signedTx = setScript({ '1': seed, '2': seed2 }, txParams);
+
+    expect(signedTx.proofs[0]).to.be.null
+    expect(validateSetScriptTx(signedTx, 1, publicKey(seed))).to.be.true
+    expect(validateSetScriptTx(signedTx, 2, publicKey(seed2))).to.be.true
+  });
+
   it('Should generate correct signed setScript transaction with null script', () => {
     const txParams = { script: null };
     const signedTx = setScript(seed, txParams);
 
     expect(validateSetScriptTx(signedTx)).to.be.true
   });
 
+  it('Should generate correct signed setScript transaction without seed', () => {
+    const txParams = { script: compiledContract, senderPublicKey: publicKey(seed) };
+    const tx = setScript(null, txParams);
+
+    expect(tx.script).to.eql('base64:' + txParams.script);
+    expect(tx.senderPublicKey).to.eql(publicKey(seed));
+  });
+
   it('Should throw on undefined script', () => {
     const txParams = {};
     expect(() => setScript(seed, txParams)).to.throw('Script field cannot be undefined. Use null explicitly to remove script')
   });
+
+  it('Should handle incorrect keys in seedObject', () => {
+    const txParams = { script: compiledContract };
+    const signedTx = setScript({ 'asd1': seed, '2': seed2 }as any, txParams);
+
+    expect(signedTx.proofs[0]).to.be.null
+    expect(signedTx.proofs[1]).to.be.null
+    expect(validateSetScriptTx(signedTx, 2, publicKey(seed2))).to.be.true
+  });
 })
 
-function validateSetScriptTx(tx: SetScriptTransaction, proofNumber = 0): boolean {
+function validateSetScriptTx(tx: SetScriptTransaction, proofNumber = 0, publicKey?: string): boolean {
   const bytes = concat(
     BYTES([tx.type, tx.version, tx.chainId.charCodeAt(0)]),
     BASE58_STRING(tx.senderPublicKey),
     OPTION(LEN(SHORT)(BASE64_STRING))(tx.script ? tx.script.slice(7) : null),
     LONG(tx.fee),
     LONG(tx.timestamp),
   )
-  return verifySignature(tx.senderPublicKey, bytes, tx.proofs[proofNumber])
+  return verifySignature(publicKey || tx.senderPublicKey, bytes, tx.proofs[proofNumber])
 }

tsconfig.json

@@ -2,7 +2,8 @@
   "compilerOptions": {
     "target": "es6",
     "lib": [
-      "es7"
+      "es7",
+      "es2018"
     ],
     //"sourceMap": true,
     "declaration": true,