JavaScriptSolidServer/src/idp/accounts.js at gh-pages · JavaScriptSolidServer/JavaScriptSolidServer · GitHub

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/**

* Account management for the Identity Provider

* Handles user accounts with username/password authentication

* Email is optional - internally uses username@jss if not provided

// Use bcryptjs for cross-platform compatibility (works on Android/Termux/Windows)

const bcrypt = await import('bcryptjs').then(m => m.default);

import crypto from 'crypto';

import fs from 'fs-extra';

import path from 'path';

// Internal domain for generated emails

const INTERNAL_DOMAIN = 'jss';

/**

* Get accounts directory (computed dynamically to support changing DATA_ROOT)

function getAccountsDir() {

const dataRoot = process.env.DATA_ROOT || './data';

return path.join(dataRoot, '.idp', 'accounts');

}

function getUsernameIndexPath() {

return path.join(getAccountsDir(), '_username_index.json');

}

function getEmailIndexPath() {

return path.join(getAccountsDir(), '_email_index.json');

}

function getWebIdIndexPath() {

return path.join(getAccountsDir(), '_webid_index.json');

}

function getCredentialIndexPath() {

return path.join(getAccountsDir(), '_credential_index.json');

}

const SALT_ROUNDS = 10;

/**

* Initialize the accounts directory

async function ensureDir() {

await fs.ensureDir(getAccountsDir());

}

/**

* Load an index file

async function loadIndex(indexPath) {

try {

return await fs.readJson(indexPath);

} catch (err) {

if (err.code === 'ENOENT') return {};

throw err;

}

/**

* Save an index file

async function saveIndex(indexPath, index) {

await fs.writeJson(indexPath, index, { spaces: 2 });

}

/**

* Create a new user account

* @param {object} options - Account options

* @param {string} options.username - Username (typically same as podName)

* @param {string} options.password - Plain text password

* @param {string} options.webId - User's WebID URI

* @param {string} options.podName - Pod name

* @param {string} [options.email] - Optional email (defaults to username@jss)

* @returns {Promise<object>} - Created account (without password)

export async function createAccount({ username, password, webId, podName, email }) {

await ensureDir();

const normalizedUsername = username.toLowerCase().trim();

// Use provided email or generate internal one

const normalizedEmail = email

? email.toLowerCase().trim()

: `${normalizedUsername}@${INTERNAL_DOMAIN}`;

// Check username uniqueness

const existingByUsername = await findByUsername(normalizedUsername);

if (existingByUsername) {

throw new Error('Username already taken');

}

// Check email uniqueness (if real email provided)

if (email) {

const existingByEmail = await findByEmail(normalizedEmail);

if (existingByEmail) {

throw new Error('Email already registered');

}

// Check webId uniqueness

const existingByWebId = await findByWebId(webId);

if (existingByWebId) {

throw new Error('WebID already has an account');

}

// Generate account ID and hash password

const id = crypto.randomUUID();

const passwordHash = await bcrypt.hash(password, SALT_ROUNDS);

const account = {

id,

username: normalizedUsername,

email: normalizedEmail,

passwordHash,

webId,

podName,

createdAt: new Date().toISOString(),

lastLogin: null,

};

// Save account

const accountPath = path.join(getAccountsDir(), `${id}.json`);

await fs.writeJson(accountPath, account, { spaces: 2 });

// Update username index

const usernameIndex = await loadIndex(getUsernameIndexPath());

usernameIndex[normalizedUsername] = id;

await saveIndex(getUsernameIndexPath(), usernameIndex);

// Update email index

const emailIndex = await loadIndex(getEmailIndexPath());

emailIndex[normalizedEmail] = id;

await saveIndex(getEmailIndexPath(), emailIndex);

// Update webId index

const webIdIndex = await loadIndex(getWebIdIndexPath());

webIdIndex[webId] = id;

await saveIndex(getWebIdIndexPath(), webIdIndex);

// Return account without password hash

const { passwordHash: _, ...safeAccount } = account;

return safeAccount;

}

/**

* Verify a password against an account's stored hash without side effects.

* Use this for re-auth proofs (e.g. password rotation) where stamping

* lastLogin would falsify the audit trail.

* @param {object} account - Account object with passwordHash

* @param {string} password - Plain text password

* @returns {Promise<boolean>}

export async function verifyPassword(account, password) {

if (!account?.passwordHash) return false;

return bcrypt.compare(password, account.passwordHash);

}

/**

* Authenticate a user with username/email and password

* @param {string} identifier - Username or email

* @param {string} password - Plain text password

* @returns {Promise<object|null>} - Account if valid, null if invalid

export async function authenticate(identifier, password) {

// Try to find by username first, then by email

let account = await findByUsername(identifier);

if (!account) {

account = await findByEmail(identifier);

}

if (!account) return null;

const valid = await bcrypt.compare(password, account.passwordHash);

if (!valid) return null;

// Update last login

account.lastLogin = new Date().toISOString();

const accountPath = path.join(getAccountsDir(), `${account.id}.json`);

await fs.writeJson(accountPath, account, { spaces: 2 });

// Return account without password hash

const { passwordHash: _, ...safeAccount } = account;

return safeAccount;

}

/**

* Find an account by ID

* @param {string} id - Account ID

* @returns {Promise<object|null>} - Account or null

export async function findById(id) {

try {

const accountPath = path.join(getAccountsDir(), `${id}.json`);

return await fs.readJson(accountPath);

} catch (err) {

if (err.code === 'ENOENT') return null;

throw err;

}

/**

* Find an account by username

* @param {string} username - Username

* @returns {Promise<object|null>} - Account or null

export async function findByUsername(username) {

const normalizedUsername = username.toLowerCase().trim();

const usernameIndex = await loadIndex(getUsernameIndexPath());

const id = usernameIndex[normalizedUsername];

if (!id) return null;

return findById(id);

}

/**

* Find an account by email

* @param {string} email - User email

* @returns {Promise<object|null>} - Account or null

export async function findByEmail(email) {

const normalizedEmail = email.toLowerCase().trim();

const emailIndex = await loadIndex(getEmailIndexPath());

const id = emailIndex[normalizedEmail];

if (!id) return null;

return findById(id);

}

/**

* Find an account by WebID

* @param {string} webId - User WebID

* @returns {Promise<object|null>} - Account or null

export async function findByWebId(webId) {

const webIdIndex = await loadIndex(getWebIdIndexPath());

const id = webIdIndex[webId];

if (!id) return null;

return findById(id);

}

/**

* Update account password

* @param {string} id - Account ID

* @param {string} newPassword - New plain text password

export async function updatePassword(id, newPassword) {

const account = await findById(id);

if (!account) {

throw new Error('Account not found');

}

account.passwordHash = await bcrypt.hash(newPassword, SALT_ROUNDS);

account.passwordChangedAt = new Date().toISOString();

const accountPath = path.join(getAccountsDir(), `${id}.json`);

await fs.writeJson(accountPath, account, { spaces: 2 });

}

/**

* Delete an account

* @param {string} id - Account ID

export async function deleteAccount(id) {

const account = await findById(id);

if (!account) return;

// Remove from indexes

if (account.username) {

const usernameIndex = await loadIndex(getUsernameIndexPath());

delete usernameIndex[account.username];

await saveIndex(getUsernameIndexPath(), usernameIndex);

}

const emailIndex = await loadIndex(getEmailIndexPath());

delete emailIndex[account.email];

await saveIndex(getEmailIndexPath(), emailIndex);

const webIdIndex = await loadIndex(getWebIdIndexPath());

delete webIdIndex[account.webId];

await saveIndex(getWebIdIndexPath(), webIdIndex);

// Delete account file

const accountPath = path.join(getAccountsDir(), `${id}.json`);

await fs.remove(accountPath);

}

/**

* Save an account (internal helper)

* @param {object} account - Account object

async function saveAccount(account) {

const accountPath = path.join(getAccountsDir(), `${account.id}.json`);

await fs.writeJson(accountPath, account, { spaces: 2 });

}

/**

* Update last login timestamp

* @param {string} id - Account ID

export async function updateLastLogin(id) {

const account = await findById(id);

if (!account) return;

account.lastLogin = new Date().toISOString();

await saveAccount(account);

}

/**

* Add a passkey credential to an account

* @param {string} accountId - Account ID

* @param {object} credential - Passkey credential

* @param {string} credential.credentialId - Base64url encoded credential ID

* @param {string} credential.publicKey - Base64url encoded public key

* @param {number} credential.counter - Authenticator counter

* @param {string[]} [credential.transports] - Supported transports

* @param {string} [credential.name] - User-friendly name

* @returns {Promise<boolean>} - Success

export async function addPasskey(accountId, credential) {

const account = await findById(accountId);

if (!account) return false;

account.passkeys = account.passkeys || [];

// Check for duplicate credentialId

const existingPasskey = account.passkeys.find(pk => pk.credentialId === credential.credentialId);

if (existingPasskey) {

return false; // Already registered

}

account.passkeys.push({

credentialId: credential.credentialId,

publicKey: credential.publicKey,

counter: credential.counter || 0,

transports: credential.transports || [],

createdAt: new Date().toISOString(),

lastUsed: null,

name: credential.name || 'Security Key'

});

await saveAccount(account);

// Update credential index

const credentialIndex = await loadIndex(getCredentialIndexPath());

credentialIndex[credential.credentialId] = accountId;

await saveIndex(getCredentialIndexPath(), credentialIndex);

return true;

}

/**

* Find an account by passkey credential ID

* @param {string} credentialId - Base64url encoded credential ID

* @returns {Promise<object|null>} - Account or null

export async function findByCredentialId(credentialId) {

const credentialIndex = await loadIndex(getCredentialIndexPath());

const id = credentialIndex[credentialId];

if (!id) return null;

return findById(id);

}

/**

* Update passkey counter after successful authentication

* @param {string} accountId - Account ID

* @param {string} credentialId - Credential ID

* @param {number} newCounter - New counter value

export async function updatePasskeyCounter(accountId, credentialId, newCounter) {

const account = await findById(accountId);

if (!account || !account.passkeys) return;

const passkey = account.passkeys.find(p => p.credentialId === credentialId);

if (passkey) {

passkey.counter = newCounter;

passkey.lastUsed = new Date().toISOString();

await saveAccount(account);

}

/**

* Remove a passkey from an account

* @param {string} accountId - Account ID

* @param {string} credentialId - Credential ID to remove

* @returns {Promise<boolean>} - Success

export async function removePasskey(accountId, credentialId) {

const account = await findById(accountId);

if (!account || !account.passkeys) return false;

const index = account.passkeys.findIndex(p => p.credentialId === credentialId);

if (index === -1) return false;

account.passkeys.splice(index, 1);

await saveAccount(account);

// Update credential index

const credentialIndex = await loadIndex(getCredentialIndexPath());

delete credentialIndex[credentialId];

await saveIndex(getCredentialIndexPath(), credentialIndex);

return true;

}

/**

* Set passkey prompt dismissed flag

* @param {string} accountId - Account ID

* @param {boolean} dismissed - Whether prompt was dismissed

export async function setPasskeyPromptDismissed(accountId, dismissed = true) {

const account = await findById(accountId);

if (!account) return;

account.passkeyPromptDismissed = dismissed;

await saveAccount(account);

}

/**

* Get account for oidc-provider's findAccount

* This is the interface oidc-provider expects

* @param {string} id - Account ID

* @returns {Promise<object|undefined>} - Account interface for oidc-provider

export async function getAccountForProvider(id) {

const account = await findById(id);

if (!account) return undefined;

return {

accountId: id,

/**

* Return claims for the token

* @param {string} use - 'id_token' or 'userinfo'

* @param {string} scope - Requested scopes

* @param {object} claims - Requested claims

* @param {string[]} rejected - Rejected claims

async claims(use, scope, claims, rejected) {

const result = {

sub: id,

};

// Always include webid for Solid-OIDC

result.webid = account.webId;

// Handle scope being a string, array, Set, or object with keys

const hasScope = (s) => {

if (typeof scope === 'string') return scope.includes(s);

if (Array.isArray(scope)) return scope.includes(s);

if (scope instanceof Set) return scope.has(s);

if (scope && typeof scope === 'object') return s in scope || Object.keys(scope).includes(s);

return false;

};

// Profile scope

if (hasScope('profile')) {

result.name = account.podName;

}

// Email scope

if (hasScope('email')) {

result.email = account.email;

result.email_verified = false; // We don't have email verification yet

}

return result;

};

}

JavaScriptSolidServer/src/idp/accounts.js at gh-pages · JavaScriptSolidServer/JavaScriptSolidServer · GitHub

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