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feat(grants): binance crosschain integration (#8306)
* feat: add binance chain sync + new migration * defer makemigration * feat: sync payout/pending tx flow * update admin + repr + cart_payload * update contribute view * update grant new + edit view * fix redundancy * add binance to grant creation flow + edit flow * add contribution with binance extension * binance cart flow * handle BUSD contribution * fix isBinanceExtInstalled * new migration * fix chain selection * include binance html + handle decimals
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| const contributeWithBinanceExtension = async (grant, vm) => { | ||
| let token_name = grant.grant_donation_currency; | ||
| let decimals = vm.filterByChainId.filter(token => { | ||
| return token.name == token_name })[0].decimals | ||
| let amount = grant.grant_donation_amount * 10 ** decimals; | ||
| let to_address = grant.binance_payout_address; | ||
| let from_address; | ||
|
|
||
| try { | ||
| from_address = await binance_utils.getSelectedAccount(); | ||
| } catch (error) { | ||
| _alert({ message: `Please ensure your Binance Chain Extension wallet is installed and enabled`}, 'error'); | ||
| return; | ||
| } | ||
|
|
||
| if (!token_name) { | ||
| token_name = 'BNB'; | ||
| } | ||
|
|
||
| if (token_name === 'BNB') { | ||
| const account_balance = await binance_utils.getAddressBalance(from_address); | ||
|
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| if (Number(account_balance) < amount) { | ||
| _alert({ message: `Account needs to have more than ${amount / 10 ** decimals} BNB for payout` }, 'error'); | ||
| return; | ||
| } | ||
| } else if (token_name === 'BUSD') { | ||
| const busd_contract_address = '0xe9e7cea3dedca5984780bafc599bd69add087d56' | ||
|
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| const account_balance = await binance_utils.getAddressTokenBalance(from_address, busd_contract_address); | ||
|
|
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| if (Number(account_balance) < amount ) { | ||
| _alert({ message: `Account needs to have more than ${amount / 10 ** decimals} BUSD for payout` }, 'error'); | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| binance_utils.transferViaExtension( | ||
| amount, | ||
| to_address, | ||
| from_address, | ||
| token_name | ||
| ).then(txn => { | ||
| if (txn) { | ||
| callback(null, from_address, txn); | ||
| } else { | ||
| callback('error in signing transaction'); | ||
| } | ||
| }).catch(err => { | ||
| callback(err); | ||
| }); | ||
|
|
||
| function callback(error, from_address, txn) { | ||
| if (error) { | ||
| vm.updatePaymentStatus(grant.grant_id, 'failed'); | ||
| _alert({ message: gettext('Unable to contribute to grant due to ' + error) }, 'error'); | ||
| console.log(error); | ||
| } else { | ||
|
|
||
| const payload = { | ||
| 'contributions': [{ | ||
| 'grant_id': grant.grant_id, | ||
| 'contributor_address': from_address, | ||
| 'tx_id': txn, | ||
| 'token_symbol': grant.grant_donation_currency, | ||
| 'tenant': 'BINANCE', | ||
| 'comment': grant.grant_comments, | ||
| 'amount_per_period': grant.grant_donation_amount | ||
| }] | ||
| }; | ||
|
|
||
| const apiUrlGrant = `v1/api/contribute`; | ||
|
|
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| fetchData(apiUrlGrant, 'POST', JSON.stringify(payload)).then(response => { | ||
| if (200 <= response.status && response.status <= 204) { | ||
| console.log('success', response); | ||
|
|
||
| vm.updatePaymentStatus(grant.grant_id, 'done', txn); | ||
|
|
||
| } else { | ||
| vm.updatePaymentStatus(grant.grant_id, 'failed'); | ||
| _alert('Unable to make contribute to grant. Please try again later', 'error'); | ||
| console.error(`error: grant contribution failed with status: ${response.status} and message: ${response.message}`); | ||
| } | ||
| }).catch(function (error) { | ||
| vm.updatePaymentStatus(grant.grant_id, 'failed'); | ||
| _alert('Unable to make contribute to grant. Please try again later', 'error'); | ||
| console.log(error); | ||
| }); | ||
| } | ||
| } | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| # Generated by Django 2.2.4 on 2021-02-08 18:39 | ||
|
|
||
| from django.db import migrations, models | ||
|
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||
|
|
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| class Migration(migrations.Migration): | ||
|
|
||
| dependencies = [ | ||
| ('grants', '0109_auto_20210203_1419'), | ||
| ] | ||
|
|
||
| operations = [ | ||
| migrations.AddField( | ||
| model_name='grant', | ||
| name='binance_payout_address', | ||
| field=models.CharField(blank=True, default='0x0', help_text='The binance wallet address where subscription funds will be sent.', max_length=255, null=True), | ||
| ), | ||
| migrations.AlterField( | ||
| model_name='contribution', | ||
| name='checkout_type', | ||
| field=models.CharField(blank=True, choices=[('eth_std', 'eth_std'), ('eth_zksync', 'eth_zksync'), ('zcash_std', 'zcash_std'), ('celo_std', 'celo_std'), ('zil_std', 'zil_std'), ('polkadot_std', 'polkadot_std'), ('harmony_std', 'harmony_std'), ('binance_std', 'binance_std')], help_text='The checkout method used while making the contribution', max_length=30, null=True), | ||
| ), | ||
| migrations.AlterField( | ||
| model_name='subscription', | ||
| name='tenant', | ||
| field=models.CharField(blank=True, choices=[('ETH', 'ETH'), ('ZCASH', 'ZCASH'), ('CELO', 'CELO'), ('ZIL', 'ZIL'), ('POLKADOT', 'POLKADOT'), ('KUSAMA', 'KUSAMA'), ('HARMONY', 'HARMONY'), ('BINANCE', 'BINANCE')], default='ETH', help_text='specific tenant in which contribution is made', max_length=10, null=True), | ||
| ), | ||
| ] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| import requests | ||
| from grants.sync.helpers import record_contribution_activity | ||
|
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||
|
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| def get_binance_txn_status(contribution): | ||
| txnid = contribution.tx_id | ||
|
|
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| if not txnid or txnid == "0x0": | ||
| return None | ||
|
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| response = { 'status': 'pending' } | ||
|
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| try: | ||
| binance_url = f'https://bsc-dataseed.binance.org' | ||
|
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| data = { | ||
| 'id': 0, | ||
| 'jsonrpc': '2.0', | ||
| 'method': 'eth_getTransactionReceipt', | ||
| 'params': [ txnid ] | ||
| } | ||
|
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| headers = { | ||
| 'Host': 'gitcoin.co' | ||
| } | ||
|
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| binance_response = requests.post(binance_url, json=data).json() | ||
|
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| result = binance_response['result'] | ||
|
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| response = { 'status': 'pending' } | ||
|
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| if result: | ||
| tx_status = int(result.get('status'), 16) # convert hex to decimal | ||
|
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| if tx_status == 1: | ||
| response = { 'status': 'done' } | ||
| elif tx_status == 0: | ||
| response = { 'status': 'expired' } | ||
|
|
||
| except Exception as e: | ||
| logger.error(f'error: get_binance_txn_status - {e}') | ||
|
|
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| finally: | ||
| return response | ||
|
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|
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| def sync_binance_payout(contribution): | ||
| if contribution.tx_id or contribution.tx_id == "0x0": | ||
| txn_status = get_binance_txn_status(contribution) | ||
|
|
||
| if txn_status: | ||
| status_description = txn_status.get('status') | ||
|
|
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| if status_description == 'done': | ||
| contribution.success = True | ||
| contribution.tx_cleared = True | ||
| contribution.checkout_type = 'binance_std' | ||
| record_contribution_activity(contribution) | ||
| contribution.save() | ||
| elif status_description == 'expired': | ||
| contribution.success = True | ||
| contribution.tx_cleared = False | ||
| contribution.save() |
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