mirror of
https://gitlab.com/soapbox-pub/ditto.git
synced 2025-12-06 11:29:46 +00:00
feat: craete GET '/api/v1/ditto/cashu/wallet' endpoint
refactor: remove old swap controller and create swapNutzapsMiddleware
This commit is contained in:
P. Reis
parent
76f91687bd
commit
5e86844c12
3 changed files with 210 additions and 127 deletions
|
|
@ -1,19 +1,19 @@
|
|||
import { Proof } from '@cashu/cashu-ts';
|
||||
import { Hono } from '@hono/hono';
|
||||
import { CashuMint, CashuWallet, getEncodedToken, type Proof } from '@cashu/cashu-ts';
|
||||
import { NostrFilter } from '@nostrify/nostrify';
|
||||
import { logi } from '@soapbox/logi';
|
||||
import { generateSecretKey, getPublicKey } from 'nostr-tools';
|
||||
import { bytesToString, stringToBytes } from '@scure/base';
|
||||
import { z } from 'zod';
|
||||
|
||||
import { Conf } from '@/config.ts';
|
||||
import { isNostrId } from '@/utils.ts';
|
||||
import { createEvent, parseBody } from '@/utils/api.ts';
|
||||
import { errorJson } from '@/utils/log.ts';
|
||||
import { signerMiddleware } from '@/middleware/signerMiddleware.ts';
|
||||
import { requireNip44Signer } from '@/middleware/requireSigner.ts';
|
||||
import { storeMiddleware } from '@/middleware/storeMiddleware.ts';
|
||||
import { walletSchema } from '@/schema.ts';
|
||||
import { swapNutzapsMiddleware } from '@/middleware/swapNutzapsMiddleware.ts';
|
||||
import { isNostrId } from '@/utils.ts';
|
||||
import { logi } from '@soapbox/logi';
|
||||
import { errorJson } from '@/utils/log.ts';
|
||||
|
||||
type Wallet = z.infer<typeof walletSchema>;
|
||||
|
||||
|
|
@ -115,148 +115,58 @@ app.put('/wallet', requireNip44Signer, async (c) => {
|
|||
return c.json(walletEntity, 200);
|
||||
});
|
||||
|
||||
/**
|
||||
* Swaps all nutzaps (NIP-61) to the user's wallet (NIP-60)
|
||||
*/
|
||||
app.post('/swap', async (c) => {
|
||||
const signer = c.get('signer')!;
|
||||
/** Gets a wallet, if it exists. */
|
||||
app.get('/wallet', requireNip44Signer, swapNutzapsMiddleware, async (c) => {
|
||||
const signer = c.get('signer');
|
||||
const store = c.get('store');
|
||||
const pubkey = await signer.getPublicKey();
|
||||
const { signal } = c.req.raw;
|
||||
|
||||
const nip44 = signer.nip44;
|
||||
if (!nip44) {
|
||||
return c.json({ error: 'Signer does not have nip 44.' }, 400);
|
||||
const [event] = await store.query([{ authors: [pubkey], kinds: [17375] }], { signal });
|
||||
if (!event) {
|
||||
return c.json({ error: 'Wallet not found' }, 404);
|
||||
}
|
||||
|
||||
const [wallet] = await store.query([{ authors: [pubkey], kinds: [17375] }], { signal });
|
||||
if (!wallet) {
|
||||
return c.json({ error: 'You need to have a wallet to swap the nutzaps into it.' }, 400);
|
||||
}
|
||||
const decryptedContent: string[][] = JSON.parse(await signer.nip44.decrypt(pubkey, event.content));
|
||||
|
||||
let decryptedContent: string;
|
||||
try {
|
||||
decryptedContent = await nip44.decrypt(pubkey, wallet.content);
|
||||
} catch (e) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', id: wallet.id, kind: wallet.kind, error: errorJson(e) });
|
||||
return c.json({ error: 'Could not decrypt wallet content.' }, 400);
|
||||
}
|
||||
|
||||
let contentTags: string[][];
|
||||
try {
|
||||
contentTags = JSON.parse(decryptedContent);
|
||||
} catch {
|
||||
return c.json({ error: 'Could not JSON parse the decrypted wallet content.' }, 400);
|
||||
}
|
||||
|
||||
const privkey = contentTags.find(([value]) => value === 'privkey')?.[1];
|
||||
const privkey = decryptedContent.find(([value]) => value === 'privkey')?.[1];
|
||||
if (!privkey || !isNostrId(privkey)) {
|
||||
return c.json({ error: 'Wallet does not contain privkey or privkey is not a valid nostr id.' }, 400);
|
||||
return c.json({ error: 'Wallet does not contain privkey or privkey is not a valid nostr id.' }, 422);
|
||||
}
|
||||
|
||||
const p2pk = getPublicKey(stringToBytes('hex', privkey));
|
||||
|
||||
const [nutzapInformation] = await store.query([{ authors: [pubkey], kinds: [10019] }], { signal });
|
||||
if (!nutzapInformation) {
|
||||
return c.json({ error: 'You need to have a nutzap information event so we can get the mints.' }, 400);
|
||||
}
|
||||
let balance = 0;
|
||||
const mints: string[] = [];
|
||||
|
||||
const nutzapInformationPubkey = nutzapInformation.tags.find(([name]) => name === 'pubkey')?.[1];
|
||||
if (!nutzapInformationPubkey || (nutzapInformationPubkey !== p2pk)) {
|
||||
return c.json({
|
||||
error:
|
||||
"You do not have a 'pubkey' tag in your nutzap information event or the one you have does not match the one derivated from the wallet.",
|
||||
}, 400);
|
||||
}
|
||||
|
||||
const mints = [...new Set(nutzapInformation.tags.filter(([name]) => name === 'mint').map(([_, value]) => value))];
|
||||
if (mints.length < 1) {
|
||||
return c.json({ error: 'You do not have any mints in your nutzap information event.' }, 400);
|
||||
}
|
||||
|
||||
const nutzapsFilter: NostrFilter = { kinds: [9321], '#p': [pubkey], '#u': mints };
|
||||
|
||||
const [nutzapHistory] = await store.query([{ kinds: [7376], authors: [pubkey] }], { signal });
|
||||
if (nutzapHistory) {
|
||||
nutzapsFilter.since = nutzapHistory.created_at;
|
||||
}
|
||||
|
||||
const mintsToProofs: { [key: string]: { proofs: Proof[]; redeemed: string[][] } } = {};
|
||||
|
||||
const nutzaps = await store.query([nutzapsFilter], { signal });
|
||||
|
||||
for (const event of nutzaps) {
|
||||
const tokens = await store.query([{ authors: [pubkey], kinds: [7375] }], { signal });
|
||||
for (const token of tokens) {
|
||||
try {
|
||||
const mint = event.tags.find(([name]) => name === 'u')?.[1];
|
||||
if (!mint) {
|
||||
continue;
|
||||
const decryptedContent: { mint: string; proofs: Proof[] } = JSON.parse(
|
||||
await signer.nip44.decrypt(pubkey, token.content),
|
||||
);
|
||||
|
||||
if (!mints.includes(decryptedContent.mint)) {
|
||||
mints.push(decryptedContent.mint);
|
||||
}
|
||||
|
||||
const proof = event.tags.find(([name]) => name === 'proof')?.[1];
|
||||
if (!proof) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!mintsToProofs[mint]) {
|
||||
mintsToProofs[mint] = { proofs: [], redeemed: [] };
|
||||
}
|
||||
|
||||
mintsToProofs[mint].proofs = [...mintsToProofs[mint].proofs, ...JSON.parse(proof)];
|
||||
mintsToProofs[mint].redeemed = [
|
||||
...mintsToProofs[mint].redeemed,
|
||||
[
|
||||
'e', // nutzap event that has been redeemed
|
||||
event.id,
|
||||
Conf.relay,
|
||||
'redeemed',
|
||||
],
|
||||
['p', event.pubkey], // pubkey of the author of the 9321 event (nutzap sender)
|
||||
];
|
||||
} catch (e: any) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', error: e });
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: throw error if mintsToProofs is an empty object?
|
||||
for (const mint of Object.keys(mintsToProofs)) {
|
||||
try {
|
||||
const token = getEncodedToken({ mint, proofs: mintsToProofs[mint].proofs });
|
||||
|
||||
const cashuWallet = new CashuWallet(new CashuMint(mint));
|
||||
const receiveProofs = await cashuWallet.receive(token, { privkey });
|
||||
|
||||
const unspentProofs = await createEvent({
|
||||
kind: 7375,
|
||||
content: await nip44.encrypt(
|
||||
pubkey,
|
||||
JSON.stringify({
|
||||
mint,
|
||||
proofs: receiveProofs,
|
||||
}),
|
||||
),
|
||||
}, c);
|
||||
|
||||
const amount = receiveProofs.reduce((accumulator, current) => {
|
||||
balance += decryptedContent.proofs.reduce((accumulator, current) => {
|
||||
return accumulator + current.amount;
|
||||
}, 0);
|
||||
|
||||
await createEvent({
|
||||
kind: 7376,
|
||||
content: await nip44.encrypt(
|
||||
pubkey,
|
||||
JSON.stringify([
|
||||
['direction', 'in'],
|
||||
['amount', amount],
|
||||
['e', unspentProofs.id, Conf.relay, 'created'],
|
||||
]),
|
||||
),
|
||||
tags: mintsToProofs[mint].redeemed,
|
||||
}, c);
|
||||
} catch (e: any) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', error: e });
|
||||
} catch (e) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', error: errorJson(e) });
|
||||
}
|
||||
}
|
||||
|
||||
return c.json(201);
|
||||
// TODO: maybe change the 'Wallet' type data structure so each mint is a key and the value are the tokens associated with a given mint
|
||||
const walletEntity: Wallet = {
|
||||
pubkey_p2pk: p2pk,
|
||||
mints,
|
||||
relays: [Conf.relay],
|
||||
balance,
|
||||
};
|
||||
|
||||
return c.json(walletEntity, 200);
|
||||
});
|
||||
|
||||
export default app;
|
||||
|
|
|
|||
172
src/middleware/swapNutzapsMiddleware.ts
Normal file
172
src/middleware/swapNutzapsMiddleware.ts
Normal file
|
|
@ -0,0 +1,172 @@
|
|||
import { CashuMint, CashuWallet, getEncodedToken, type Proof } from '@cashu/cashu-ts';
|
||||
import { MiddlewareHandler } from '@hono/hono';
|
||||
import { HTTPException } from '@hono/hono/http-exception';
|
||||
import { getPublicKey } from 'nostr-tools';
|
||||
import { NostrFilter, NostrSigner, NStore } from '@nostrify/nostrify';
|
||||
import { SetRequired } from 'type-fest';
|
||||
import { stringToBytes } from '@scure/base';
|
||||
import { logi } from '@soapbox/logi';
|
||||
|
||||
import { isNostrId } from '@/utils.ts';
|
||||
import { errorJson } from '@/utils/log.ts';
|
||||
import { Conf } from '@/config.ts';
|
||||
import { createEvent } from '@/utils/api.ts';
|
||||
|
||||
/**
|
||||
* Swap nutzaps into wallet (create new events) if the user has a wallet, otheriwse, just fallthrough.
|
||||
* Errors are only thrown if 'signer' and 'store' middlewares are not set.
|
||||
*/
|
||||
export const swapNutzapsMiddleware: MiddlewareHandler<
|
||||
{ Variables: { signer: SetRequired<NostrSigner, 'nip44'>; store: NStore } }
|
||||
> = async (c, next) => {
|
||||
const signer = c.get('signer');
|
||||
const store = c.get('store');
|
||||
|
||||
if (!signer) {
|
||||
throw new HTTPException(401, { message: 'No pubkey provided' });
|
||||
}
|
||||
|
||||
if (!signer.nip44) {
|
||||
throw new HTTPException(401, { message: 'No NIP-44 signer provided' });
|
||||
}
|
||||
|
||||
if (!store) {
|
||||
throw new HTTPException(401, { message: 'No store provided' });
|
||||
}
|
||||
|
||||
const { signal } = c.req.raw;
|
||||
const pubkey = await signer.getPublicKey();
|
||||
const [wallet] = await store.query([{ authors: [pubkey], kinds: [17375] }], { signal });
|
||||
|
||||
if (wallet) {
|
||||
let decryptedContent: string;
|
||||
try {
|
||||
decryptedContent = await signer.nip44.decrypt(pubkey, wallet.content);
|
||||
} catch (e) {
|
||||
logi({
|
||||
level: 'error',
|
||||
ns: 'ditto.api.cashu.wallet.swap',
|
||||
id: wallet.id,
|
||||
kind: wallet.kind,
|
||||
error: errorJson(e),
|
||||
});
|
||||
return c.json({ error: 'Could not decrypt wallet content.' }, 400);
|
||||
}
|
||||
|
||||
let contentTags: string[][];
|
||||
try {
|
||||
contentTags = JSON.parse(decryptedContent);
|
||||
} catch {
|
||||
return c.json({ error: 'Could not JSON parse the decrypted wallet content.' }, 400);
|
||||
}
|
||||
|
||||
const privkey = contentTags.find(([value]) => value === 'privkey')?.[1];
|
||||
if (!privkey || !isNostrId(privkey)) {
|
||||
return c.json({ error: 'Wallet does not contain privkey or privkey is not a valid nostr id.' }, 400);
|
||||
}
|
||||
const p2pk = getPublicKey(stringToBytes('hex', privkey));
|
||||
|
||||
const [nutzapInformation] = await store.query([{ authors: [pubkey], kinds: [10019] }], { signal });
|
||||
if (!nutzapInformation) {
|
||||
return c.json({ error: 'You need to have a nutzap information event so we can get the mints.' }, 400);
|
||||
}
|
||||
|
||||
const nutzapInformationPubkey = nutzapInformation.tags.find(([name]) => name === 'pubkey')?.[1];
|
||||
if (!nutzapInformationPubkey || (nutzapInformationPubkey !== p2pk)) {
|
||||
return c.json({
|
||||
error:
|
||||
"You do not have a 'pubkey' tag in your nutzap information event or the one you have does not match the one derivated from the wallet.",
|
||||
}, 400);
|
||||
}
|
||||
|
||||
const mints = [...new Set(nutzapInformation.tags.filter(([name]) => name === 'mint').map(([_, value]) => value))];
|
||||
if (mints.length < 1) {
|
||||
return c.json({ error: 'You do not have any mints in your nutzap information event.' }, 400);
|
||||
}
|
||||
|
||||
const nutzapsFilter: NostrFilter = { kinds: [9321], '#p': [pubkey], '#u': mints };
|
||||
|
||||
const [nutzapHistory] = await store.query([{ kinds: [7376], authors: [pubkey] }], { signal });
|
||||
if (nutzapHistory) {
|
||||
nutzapsFilter.since = nutzapHistory.created_at;
|
||||
}
|
||||
|
||||
const mintsToProofs: { [key: string]: { proofs: Proof[]; redeemed: string[][] } } = {};
|
||||
|
||||
const nutzaps = await store.query([nutzapsFilter], { signal });
|
||||
|
||||
for (const event of nutzaps) {
|
||||
try {
|
||||
const mint = event.tags.find(([name]) => name === 'u')?.[1];
|
||||
if (!mint) {
|
||||
continue;
|
||||
}
|
||||
|
||||
const proof = event.tags.find(([name]) => name === 'proof')?.[1];
|
||||
if (!proof) {
|
||||
continue;
|
||||
}
|
||||
|
||||
if (!mintsToProofs[mint]) {
|
||||
mintsToProofs[mint] = { proofs: [], redeemed: [] };
|
||||
}
|
||||
|
||||
mintsToProofs[mint].proofs = [...mintsToProofs[mint].proofs, ...JSON.parse(proof)];
|
||||
mintsToProofs[mint].redeemed = [
|
||||
...mintsToProofs[mint].redeemed,
|
||||
[
|
||||
'e', // nutzap event that has been redeemed
|
||||
event.id,
|
||||
Conf.relay,
|
||||
'redeemed',
|
||||
],
|
||||
['p', event.pubkey], // pubkey of the author of the 9321 event (nutzap sender)
|
||||
];
|
||||
} catch (e: any) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', error: e });
|
||||
}
|
||||
}
|
||||
|
||||
// TODO: throw error if mintsToProofs is an empty object?
|
||||
for (const mint of Object.keys(mintsToProofs)) {
|
||||
try {
|
||||
const token = getEncodedToken({ mint, proofs: mintsToProofs[mint].proofs });
|
||||
|
||||
const cashuWallet = new CashuWallet(new CashuMint(mint));
|
||||
const receiveProofs = await cashuWallet.receive(token, { privkey });
|
||||
|
||||
const unspentProofs = await createEvent({
|
||||
kind: 7375,
|
||||
content: await signer.nip44.encrypt(
|
||||
pubkey,
|
||||
JSON.stringify({
|
||||
mint,
|
||||
proofs: receiveProofs,
|
||||
}),
|
||||
),
|
||||
}, c);
|
||||
|
||||
const amount = receiveProofs.reduce((accumulator, current) => {
|
||||
return accumulator + current.amount;
|
||||
}, 0);
|
||||
|
||||
await createEvent({
|
||||
kind: 7376,
|
||||
content: await signer.nip44.encrypt(
|
||||
pubkey,
|
||||
JSON.stringify([
|
||||
['direction', 'in'],
|
||||
['amount', amount],
|
||||
['e', unspentProofs.id, Conf.relay, 'created'],
|
||||
]),
|
||||
),
|
||||
tags: mintsToProofs[mint].redeemed,
|
||||
}, c);
|
||||
} catch (e: any) {
|
||||
logi({ level: 'error', ns: 'ditto.api.cashu.wallet.swap', error: e });
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
await next();
|
||||
};
|
||||
|
|
@ -90,6 +90,7 @@ const walletSchema = z.object({
|
|||
relays: z.array(z.string()).nonempty().transform((val) => {
|
||||
return [...new Set(val)];
|
||||
}),
|
||||
/** Unit in sats */
|
||||
balance: z.number(),
|
||||
});
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue