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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 | 40x 40x 40x 40x 2x 1x 1x 1x 1x 40x 16x 16x 16x 16x 16x 16x 16x 16x 6x 5x 40x 6x 2x 1x 1x 1x 6x 6x 6x 2x 2x 2x 2x 2x 1x 1x | import { EmptyError, firstValueFrom } from 'rxjs';
import {
GeneralCardanoNodeError,
GeneralCardanoNodeErrorCode,
HandleOwnerChangeError,
HandleProvider,
HealthCheckResponse,
ProviderError,
ProviderFailure,
SubmitTxArgs,
TxSubmissionError,
TxSubmitProvider
} from '@cardano-sdk/core';
import { InMemoryCache } from '../InMemoryCache';
import { Logger } from 'ts-log';
import { ObservableCardanoNode } from '@cardano-sdk/projection';
import { WithLogger } from '@cardano-sdk/util';
type ObservableTxSubmitter = Pick<ObservableCardanoNode, 'healthCheck$' | 'submitTx'>;
export type NodeTxSubmitProviderProps = WithLogger & {
handleProvider?: HandleProvider;
cardanoNode: ObservableTxSubmitter;
healthCheckCache: InMemoryCache;
};
const emptyMessage = 'ObservableCardanoNode observable completed without emitting';
const toProviderError = (error: unknown) => {
if (error instanceof TxSubmissionError) {
throw new ProviderError(ProviderFailure.BadRequest, error);
} else Iif (error instanceof GeneralCardanoNodeError) {
throw new ProviderError(
error.code === GeneralCardanoNodeErrorCode.ConnectionFailure
? ProviderFailure.ConnectionFailure
: error.code === GeneralCardanoNodeErrorCode.ServerNotReady
? ProviderFailure.ServerUnavailable
: ProviderFailure.Unknown,
error
);
}
if (error instanceof EmptyError) {
throw new ProviderError(
ProviderFailure.ServerUnavailable,
new GeneralCardanoNodeError(GeneralCardanoNodeErrorCode.ServerNotReady, null, emptyMessage)
);
}
throw new ProviderError(ProviderFailure.Unknown, error);
};
/** Submit transactions to an ObservableCardanoNode. Validates handle resolutions against a HandleProvider. */
export class NodeTxSubmitProvider implements TxSubmitProvider {
#logger: Logger;
#cardanoNode: ObservableTxSubmitter;
#handleProvider?: HandleProvider;
#healthCheckCache: InMemoryCache;
constructor({ handleProvider, cardanoNode, logger, healthCheckCache }: NodeTxSubmitProviderProps) {
this.#handleProvider = handleProvider;
this.#cardanoNode = cardanoNode;
this.#logger = logger;
this.#healthCheckCache = healthCheckCache;
}
async submitTx({ signedTransaction, context }: SubmitTxArgs): Promise<void> {
await this.#throwIfHandleResolutionConflict(context);
await firstValueFrom(this.#cardanoNode.submitTx(signedTransaction)).catch(toProviderError);
}
async #checkHealth(): Promise<HealthCheckResponse> {
const [cardanoNodeHealth, handleProviderHealth] = await Promise.all([
firstValueFrom(this.#cardanoNode.healthCheck$).catch((error): HealthCheckResponse => {
if (error instanceof EmptyError) {
return { ok: false, reason: emptyMessage };
}
this.#logger.error('Unexpected healtcheck error', error);
return { ok: false, reason: 'Internal error' };
}),
this.#handleProvider?.healthCheck()
]);
return {
localNode: cardanoNodeHealth.localNode,
ok: cardanoNodeHealth.ok && (!handleProviderHealth || handleProviderHealth.ok),
reason: cardanoNodeHealth.reason || handleProviderHealth?.reason
};
}
async healthCheck(): Promise<HealthCheckResponse> {
return this.#healthCheckCache.get('ogmios_cardano_node', () => this.#checkHealth());
}
async #throwIfHandleResolutionConflict(context: SubmitTxArgs['context']): Promise<void> {
if (context?.handleResolutions && context.handleResolutions.length > 0) {
Iif (!this.#handleProvider) {
this.#logger.debug('No handle provider: bypassing handle validation');
return;
}
const handleInfoList = await this.#handleProvider.resolveHandles({
handles: context.handleResolutions.map((hndRes) => hndRes.handle)
});
for (const [index, handleInfo] of handleInfoList.entries()) {
if (!handleInfo || handleInfo.cardanoAddress !== context.handleResolutions[index].cardanoAddress) {
const handleOwnerChangeError = new HandleOwnerChangeError(
context.handleResolutions[index].handle,
context.handleResolutions[index].cardanoAddress,
handleInfo ? handleInfo.cardanoAddress : null
);
throw new ProviderError(ProviderFailure.Conflict, handleOwnerChangeError);
}
}
}
}
}
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