ghost-portal/packages/app-contracts/src/ValidateCode.tsx
Jaco Greeff 707ae0b696
Validate codehash (with wasm), address (with code) & wasm header (#991)
* Validate codehash (with wasm), address (with code) & wasm header

* Typo
2019-04-12 12:50:58 +02:00

75 lines
1.9 KiB
TypeScript

// Copyright 2017-2019 @polkadot/app-contracts authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
import { I18nProps } from '@polkadot/ui-app/types';
import { ApiProps } from '@polkadot/ui-api/types';
import React from 'react';
import { Option, PrefabWasmModule } from '@polkadot/types';
import { withCalls } from '@polkadot/ui-api';
import { InfoForInput } from '@polkadot/ui-app';
import { isHex } from '@polkadot/util';
import translate from './translate';
type Props = ApiProps & I18nProps & {
codeHash?: string | null,
contract_codeStorage?: Option<PrefabWasmModule>,
onChange: (isValid: boolean) => void
};
type State = {
isStored: boolean,
isValidHex: boolean,
isValid: boolean
};
class ValidateCode extends React.PureComponent<Props> {
state: State = {
isStored: false,
isValidHex: false,
isValid: false
};
static getDerivedStateFromProps ({ codeHash, contract_codeStorage, onChange }: Props): State {
const isValidHex = !!codeHash && isHex(codeHash) && codeHash.length === 66;
const isStored = !!contract_codeStorage && contract_codeStorage.isSome;
const isValid = isValidHex && isStored;
// FIXME Really not convinced this is the correct place to do this type of callback?
onChange(isValid);
return {
isStored,
isValidHex,
isValid
};
}
render () {
const { t } = this.props;
const { isValid, isValidHex } = this.state;
if (isValid || !isValidHex) {
return null;
}
return (
<InfoForInput type='error'>
{
isValidHex
? t('Unable to find on-chain WASM code for the supplied codeHash')
: t('The codeHash is not a valid hex hash')
}
</InfoForInput>
);
}
}
export default translate(
withCalls<Props>(
['query.contract.codeStorage', { paramName: 'codeHash' }]
)(ValidateCode)
);