applesauce-wallet-connect/dist/helpers/request.js

NIP-47 Nostr Wallet Connect implementation for both clients and services.

import { getHiddenContent, getOrComputeCachedValue, getTagValue, isHiddenContentLocked, isNIP04Encrypted, setHiddenContentEncryptionMethod, unixNow, unlockHiddenContent, } from "applesauce-core/helpers";
export const WALLET_REQUEST_KIND = 23194;
// Set the encryption method to use for request kind
setHiddenContentEncryptionMethod(WALLET_REQUEST_KIND, "nip44");
/** A symbol used to cache the wallet request on the event */
export const WalletRequestSymbol = Symbol("wallet-request");
/** Checks if a kind 23194 event is locked */
export function isWalletRequestLocked(request) {
    return isHiddenContentLocked(request);
}
/** Unlocks a kind 23194 event */
export async function unlockWalletRequest(request, signer) {
    await unlockHiddenContent(request, signer);
    return getWalletRequest(request);
}
/** Gets the wallet request from a kind 23194 event */
export function getWalletRequest(request) {
    if (isWalletRequestLocked(request))
        return undefined;
    return getOrComputeCachedValue(request, WalletRequestSymbol, () => {
        const content = getHiddenContent(request);
        if (!content)
            return null;
        return JSON.parse(content);
    });
}
/** Returns the wallet service pubkey from a request */
export function getWalletRequestServicePubkey(request) {
    return getTagValue(request, "p");
}
/** Returns the expiration timestamp from a request */
export function getWalletRequestExpiration(request) {
    const expiration = getTagValue(request, "expiration");
    return expiration ? parseInt(expiration, 10) : undefined;
}
/** Checks if a request has expired */
export function isWalletRequestExpired(request) {
    const expiration = getWalletRequestExpiration(request);
    if (!expiration)
        return false;
    return unixNow() > expiration;
}
/** Gets the encryption method used for a request */
export function getWalletRequestEncryption(request) {
    const encryption = getTagValue(request, "encryption");
    return encryption
        ? encryption
        : isNIP04Encrypted(request.content)
            ? "nip04"
            : "nip44_v2";
}