75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
const app = require('j7/app');
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const utils = require('j7/utils');
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const bcutils = require('j7/bcutils');
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const bcconst = require('common/bcconst');
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const metaFactory = require('../metadata/factory');
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const serviceFactory = require('../services/factory');
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async function approveErc20(session) {
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try {
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const accountAddress = bcutils.toNormalAddress(session.request('account_address'));
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const netId = session.request('net_id');
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const spender = bcutils.toNormalAddress(session.request('spender'));
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const value = session.request('value');
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const currencyName = session.request('currency_name');
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const bc = serviceFactory.create('BlockChain');
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{
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const ret = await bc.init(netId);
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if (!ret) {
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session.rspErr(500, 'net_id error');
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return;
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}
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}
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{
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if (!bc.isValidAddress(accountAddress)) {
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session.rspErr(500, 'account_address error');
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return;
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}
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}
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{
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if (!bc.isValidAddress(spender)) {
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session.rspErr(500, 'spender error');
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return;
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}
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}
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const contractMeta = bc.getContractByName(currencyName);
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if (!contractMeta) {
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session.rspErr(500, 'currency meta not found');
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return;
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}
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console.log(contractMeta);
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if (contractMeta['type'] != 'erc20') {
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session.rspErr(500, 'currency meta type error');
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return;
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}
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const instance = bc.getInstanceByName(currencyName);
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if (!instance) {
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session.rspErr(500, 'currency error');
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return;
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}
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let data = instance.methods.approve
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(
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spender,
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value).encodeABI();
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session.rspData({
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'trans_id' : '',
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'trans_req': {
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'to': contractMeta['address'],
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'data': data
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}
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});
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} catch (e) {
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session.rspErr(1, 1);
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utils.safeDumpErrStack(e);
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console.log(e);
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}
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}
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function init() {
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app.registerHandler('BcService', 'approveErc20', approveErc20);
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}
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exports.init = init;
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