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index.js
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index.js
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import pReduce from 'p-reduce';
import signal from 'pico-signals';
import { sha256 } from '../../utils/sha';
import { UnableCreateIdentityError } from '../../utils/errors';
import { getDescriptorKey, DESCRIPTOR_KEY_PREFIX } from './utils/storage-keys';
import { getOrbitDb, dropOrbitDb, stopOrbitDbReplication } from './utils/orbitdb';
import * as devicesFns from './devices';
import * as backupFns from './backup';
import * as profileFns from './profile';
class Identity {
#descriptor;
#storage;
#orbitdb;
backup;
devices;
profile;
#onRevoke = signal();
constructor(descriptor, storage, orbitdb, devices, backup, profile) {
this.#descriptor = descriptor;
this.#storage = storage;
this.#orbitdb = orbitdb;
this.backup = backup;
this.devices = devices;
this.profile = profile;
this.devices.onCurrentRevoke(this.#handleDevicesCurrentRevoke);
if (this.devices.getCurrent().revokedAt && !this.isRevoked()) {
setTimeout(this.#handleDevicesCurrentRevoke, 10);
}
}
getId() {
return this.#descriptor.id;
}
getDid() {
return this.#descriptor.did;
}
getAddedAt() {
return this.#descriptor.addedAt;
}
isRevoked() {
return this.#descriptor.revoked;
}
onRevoke(fn) {
return this.#onRevoke.add(fn);
}
#handleDevicesCurrentRevoke = async () => {
const key = getDescriptorKey(this.#descriptor.id);
this.#descriptor.revoked = true;
try {
await this.#storage.set(key, this.#descriptor, { encrypt: true });
} catch (err) {
console.warn(`Unable to mark identity as revoked: ${this.#descriptor.id}`, err);
}
// Stop replication
try {
await stopOrbitDbReplication(this.#orbitdb);
} catch (err) {
console.warn(`Unable to stop OrbitDB replication after identity has been revoked: ${this.#descriptor.id}`, err);
}
this.#onRevoke.dispatch();
}
}
export const peekProfileDetails = async (did, ipfs) => {
const id = await sha256(did);
const descriptor = {
id,
did,
addedAt: Date.now(),
revoked: false,
};
const orbitdb = await getOrbitDb(id, ipfs);
return profileFns.peekProfileDetails(descriptor, ipfs, orbitdb);
};
export const createIdentity = async ({ did, currentDevice, backupData, profileDetails }, storage, didm, ipfs) => {
const id = await sha256(did);
const descriptor = {
id,
did,
addedAt: Date.now(),
revoked: false,
};
const orbitdb = await getOrbitDb(id, ipfs);
try {
await storage.set(getDescriptorKey(id), descriptor, { encrypt: true });
const backup = await backupFns.createBackup(backupData, descriptor, storage);
const profile = await profileFns.createProfile(profileDetails, descriptor, ipfs, orbitdb);
const devices = await devicesFns.createDevices(currentDevice, descriptor, didm, storage, orbitdb);
return new Identity(descriptor, storage, orbitdb, devices, backup, profile);
} catch (err) {
await removeIdentity(id, storage, orbitdb);
throw new UnableCreateIdentityError(err.message, err.code);
}
};
export const removeIdentity = async (id, storage, ipfs) => {
const descriptorKey = getDescriptorKey(id);
const descriptor = await storage.get(descriptorKey);
if (!descriptor) {
return;
}
await storage.remove(descriptorKey);
const orbitdb = await getOrbitDb(descriptor.id, ipfs, {
replicate: false,
});
await devicesFns.removeDevices(descriptor, storage, orbitdb);
await profileFns.removeProfile(descriptor, ipfs, orbitdb);
await backupFns.removeBackup(descriptor, storage);
await dropOrbitDb(orbitdb);
};
export const loadIdentities = async (storage, didm, ipfs) => {
const identitiesKeys = await storage.list({
gte: DESCRIPTOR_KEY_PREFIX,
lte: `${DESCRIPTOR_KEY_PREFIX}\xFF`,
keys: false,
});
return pReduce(identitiesKeys, async (acc, descriptor) => {
const orbitdb = await getOrbitDb(descriptor.id, ipfs, {
replicate: !descriptor.revoked,
});
const backup = await backupFns.restoreBackup(descriptor, storage);
const profile = await profileFns.restoreProfile(descriptor, ipfs, orbitdb);
const devices = await devicesFns.restoreDevices(descriptor, didm, storage, orbitdb);
const identity = new Identity(descriptor, storage, orbitdb, devices, backup, profile);
return Object.assign(acc, { [descriptor.id]: identity });
}, {});
};
export { assertDeviceInfo, generateCurrentDevice } from './devices';
export { assertProfileDetails } from './profile';