openethereum/js/packages/shared/redux/providers/requestsActions.js

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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import BigNumber from 'bignumber.js';
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import { outTransaction } from '@parity/api/format/output';
import { trackRequest as trackRequestUtil, parseTransactionReceipt } from '@parity/shared/util/tx';
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// FIXME: We should not import from shell
import SavedRequests from '~/src/Requests/savedRequests';
const savedRequests = new SavedRequests();
export const init = (api) => (dispatch) => {
api.subscribe('parity_postTransaction', (error, request) => {
if (error) {
return console.error(error);
}
dispatch(watchRequest(request));
});
api.once('connected', () => {
savedRequests.load(api).then((requests) => {
requests.forEach((request) => dispatch(watchRequest(request)));
});
});
};
export const watchRequest = (request) => (dispatch, getState) => {
const { requestId } = request;
// Convert value to BigNumber
request.transaction = outTransaction(request.transaction);
dispatch(setRequest(requestId, request));
dispatch(trackRequest(requestId, request));
};
export const trackRequest = (requestId, { transactionHash = null } = {}) => (dispatch, getState) => {
const { api } = getState();
trackRequestUtil(api, { requestId, transactionHash }, (error, _data = {}) => {
const data = { ..._data };
if (error) {
console.error(error);
return dispatch(setRequest(requestId, { error }));
}
// Hide the request after 6 mined blocks
if (data.transactionReceipt) {
const { transactionReceipt } = data;
const { requests } = getState();
const requestData = requests[requestId];
let blockSubscriptionId = -1;
// Set the block height to 0 at the beggining
data.blockHeight = new BigNumber(0);
// If the request was a contract deployment,
// then add the contract with the saved metadata to the account
if (requestData.metadata && requestData.metadata.deployment) {
const { metadata } = requestData;
const options = {
...requestData.transaction,
metadata
};
parseTransactionReceipt(api, options, data.transactionReceipt)
.then((contractAddress) => {
// No contract address given, might need some confirmations
// from the wallet owners...
if (!contractAddress || /^(0x)?0*$/.test(contractAddress)) {
return false;
}
metadata.blockNumber = data.transactionReceipt
? data.transactionReceipt.blockNumber.toNumber()
: null;
const prevRequest = getState().requests[requestId];
const nextTransaction = {
...prevRequest.transaction,
creates: contractAddress
};
dispatch(setRequest(requestId, { transaction: nextTransaction }));
return Promise.all([
api.parity.setAccountName(contractAddress, metadata.name),
api.parity.setAccountMeta(contractAddress, metadata)
]);
})
.catch((error) => {
console.error(error);
});
}
api
.subscribe('eth_blockNumber', (error, blockNumber) => {
if (error || !blockNumber) {
return;
}
// Transaction included in `blockHeight` blocks
const blockHeight = blockNumber.minus(transactionReceipt.blockNumber).plus(1);
const nextData = { blockHeight };
// Hide the transaction after 6 blocks
if (blockHeight.gt(6)) {
return dispatch(hideRequest(requestId));
}
return dispatch(setRequest(requestId, nextData, false));
})
.then((subId) => {
blockSubscriptionId = subId;
return dispatch(setRequest(requestId, { blockSubscriptionId }, false));
});
}
return dispatch(setRequest(requestId, data));
});
};
export const hideRequest = (requestId) => (dispatch, getState) => {
const { api, requests } = getState();
const request = requests[requestId];
dispatch(setRequest(requestId, { show: false }));
// Delete it if an error occured or if completed
if (request.error || request.transactionReceipt) {
// Wait for the animation to be done to delete the request
setTimeout(() => {
dispatch(deleteRequest(requestId));
}, 1000);
}
// Unsubscribe to eth-blockNumber if subscribed
if (request.blockSubscriptionId) {
api.unsubscribe(request.blockSubscriptionId);
dispatch(setRequest(requestId, { blockSubscriptionId: null }, false));
}
};
export const setRequest = (requestId, requestData, autoSetShow = true) => {
if (autoSetShow && requestData.show === undefined) {
requestData.show = true;
}
savedRequests.save(requestId, requestData);
return {
type: 'setRequest',
requestId, requestData
};
};
export const deleteRequest = (requestId) => {
savedRequests.remove(requestId);
return {
type: 'deleteRequest',
requestId
};
};