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347
backend/src/services/AuthService.cpp
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347
backend/src/services/AuthService.cpp
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#include "AuthService.h"
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#include "DatabaseService.h"
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#include "RedisHelper.h"
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#include <drogon/utils/Utilities.h>
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#include <regex>
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#include <random>
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using namespace drogon;
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using namespace drogon::orm;
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bool AuthService::validatePassword(const std::string& password, std::string& error) {
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if (password.length() < 8) {
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error = "Password must be at least 8 characters long";
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return false;
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}
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if (!std::regex_search(password, std::regex("[0-9]"))) {
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error = "Password must contain at least one number";
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return false;
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}
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if (!std::regex_search(password, std::regex("[!@#$%^&*(),.?\":{}|<>]"))) {
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error = "Password must contain at least one symbol";
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return false;
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}
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return true;
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}
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void AuthService::registerUser(const std::string& username, const std::string& password,
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const std::string& publicKey, const std::string& fingerprint,
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std::function<void(bool, const std::string&, int64_t)> callback) {
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// Validate username
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if (username.length() < 3 || username.length() > 30) {
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callback(false, "Username must be between 3 and 30 characters", 0);
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return;
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}
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if (!std::regex_match(username, std::regex("^[a-zA-Z0-9_]+$"))) {
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callback(false, "Username can only contain letters, numbers, and underscores", 0);
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return;
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}
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// Validate password
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std::string error;
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if (!validatePassword(password, error)) {
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callback(false, error, 0);
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return;
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}
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auto dbClient = app().getDbClient();
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// Check if username exists
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*dbClient << "SELECT id FROM users WHERE username = $1"
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<< username
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>> [dbClient, username, password, publicKey, fingerprint, callback](const Result& r) {
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if (!r.empty()) {
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callback(false, "Username already exists", 0);
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return;
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}
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// Check if fingerprint exists
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*dbClient << "SELECT id FROM pgp_keys WHERE fingerprint = $1"
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<< fingerprint
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>> [dbClient, username, password, publicKey, fingerprint, callback](const Result& r2) {
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if (!r2.empty()) {
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callback(false, "This PGP key is already registered", 0);
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return;
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}
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// Hash password
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std::string hash = BCrypt::generateHash(password);
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// Begin transaction
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auto trans = dbClient->newTransaction();
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// Insert user with explicit false values for booleans
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*trans << "INSERT INTO users (username, password_hash, is_admin, is_streamer, is_pgp_only) VALUES ($1, $2, false, false, false) RETURNING id"
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<< username << hash
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>> [trans, publicKey, fingerprint, callback](const Result& r3) {
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if (r3.empty()) {
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callback(false, "Failed to create user", 0);
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return;
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}
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int64_t userId = r3[0]["id"].as<int64_t>();
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// Insert PGP key
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*trans << "INSERT INTO pgp_keys (user_id, public_key, fingerprint) VALUES ($1, $2, $3)"
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<< userId << publicKey << fingerprint
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>> [trans, callback, userId](const Result&) {
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// Transaction commits automatically
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callback(true, "", userId);
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}
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>> [trans, callback](const DrogonDbException& e) {
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LOG_ERROR << "Failed to insert PGP key: " << e.base().what();
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callback(false, "Failed to save PGP key", 0);
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};
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}
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>> [trans, callback](const DrogonDbException& e) {
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LOG_ERROR << "Failed to insert user: " << e.base().what();
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callback(false, "Registration failed", 0);
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};
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "Database error", 0);
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};
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "Database error", 0);
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};
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}
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void AuthService::loginUser(const std::string& username, const std::string& password,
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std::function<void(bool, const std::string&, const UserInfo&)> callback) {
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auto dbClient = app().getDbClient();
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*dbClient << "SELECT id, username, password_hash, is_admin, is_streamer, is_pgp_only, bio, avatar_url, pgp_only_enabled_at "
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"FROM users WHERE username = $1"
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<< username
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>> [password, callback, this](const Result& r) {
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if (r.empty()) {
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callback(false, "", UserInfo{});
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return;
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}
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// Check if PGP-only is enabled BEFORE password validation
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bool isPgpOnly = r[0]["is_pgp_only"].isNull() ? false : r[0]["is_pgp_only"].as<bool>();
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if (isPgpOnly) {
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// Return a specific error for PGP-only accounts
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callback(false, "PGP-only login enabled for this account", UserInfo{});
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return;
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}
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std::string hash = r[0]["password_hash"].as<std::string>();
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if (!BCrypt::validatePassword(password, hash)) {
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callback(false, "", UserInfo{});
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return;
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}
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UserInfo user;
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user.id = r[0]["id"].as<int64_t>();
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user.username = r[0]["username"].as<std::string>();
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user.isAdmin = r[0]["is_admin"].isNull() ? false : r[0]["is_admin"].as<bool>();
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user.isStreamer = r[0]["is_streamer"].isNull() ? false : r[0]["is_streamer"].as<bool>();
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user.isPgpOnly = isPgpOnly;
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user.bio = r[0]["bio"].isNull() ? "" : r[0]["bio"].as<std::string>();
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user.avatarUrl = r[0]["avatar_url"].isNull() ? "" : r[0]["avatar_url"].as<std::string>();
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user.pgpOnlyEnabledAt = r[0]["pgp_only_enabled_at"].isNull() ? "" : r[0]["pgp_only_enabled_at"].as<std::string>();
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std::string token = generateToken(user);
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callback(true, token, user);
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "", UserInfo{});
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};
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}
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void AuthService::initiatePgpLogin(const std::string& username,
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std::function<void(bool, const std::string&, const std::string&)> callback) {
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auto dbClient = app().getDbClient();
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// Generate random challenge
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auto bytes = drogon::utils::genRandomString(32);
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std::string challenge = drogon::utils::base64Encode(
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reinterpret_cast<const unsigned char*>(bytes.data()), bytes.length()
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);
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// Store challenge in Redis with 5 minute TTL
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RedisHelper::storeKeyAsync("pgp_challenge:" + username, challenge, 300,
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[dbClient, username, challenge, callback](bool stored) {
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if (!stored) {
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callback(false, "", "");
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return;
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}
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// Get user's latest public key
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*dbClient << "SELECT pk.public_key FROM pgp_keys pk "
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"JOIN users u ON pk.user_id = u.id "
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"WHERE u.username = $1 "
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"ORDER BY pk.created_at DESC LIMIT 1"
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<< username
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>> [callback, challenge](const Result& r) {
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if (r.empty()) {
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callback(false, "", "");
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return;
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}
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std::string publicKey = r[0]["public_key"].as<std::string>();
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callback(true, challenge, publicKey);
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "", "");
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};
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}
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);
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}
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void AuthService::verifyPgpLogin(const std::string& username, const std::string& signature,
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const std::string& challenge,
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std::function<void(bool, const std::string&, const UserInfo&)> callback) {
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// Get stored challenge from Redis
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RedisHelper::getKeyAsync("pgp_challenge:" + username,
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[username, signature, challenge, callback, this](const std::string& storedChallenge) {
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if (storedChallenge.empty() || storedChallenge != challenge) {
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callback(false, "", UserInfo{});
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return;
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}
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// Delete challenge after use
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RedisHelper::deleteKeyAsync("pgp_challenge:" + username, [](bool) {});
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// In a real implementation, you would verify the signature here
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// For now, we'll trust the client-side verification
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auto dbClient = app().getDbClient();
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*dbClient << "SELECT id, username, is_admin, is_streamer, is_pgp_only, bio, avatar_url, pgp_only_enabled_at "
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"FROM users WHERE username = $1"
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<< username
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>> [callback, this](const Result& r) {
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if (r.empty()) {
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callback(false, "", UserInfo{});
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return;
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}
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UserInfo user;
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user.id = r[0]["id"].as<int64_t>();
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user.username = r[0]["username"].as<std::string>();
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user.isAdmin = r[0]["is_admin"].isNull() ? false : r[0]["is_admin"].as<bool>();
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user.isStreamer = r[0]["is_streamer"].isNull() ? false : r[0]["is_streamer"].as<bool>();
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user.isPgpOnly = r[0]["is_pgp_only"].isNull() ? false : r[0]["is_pgp_only"].as<bool>();
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user.bio = r[0]["bio"].isNull() ? "" : r[0]["bio"].as<std::string>();
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user.avatarUrl = r[0]["avatar_url"].isNull() ? "" : r[0]["avatar_url"].as<std::string>();
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user.pgpOnlyEnabledAt = r[0]["pgp_only_enabled_at"].isNull() ? "" : r[0]["pgp_only_enabled_at"].as<std::string>();
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std::string token = generateToken(user);
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callback(true, token, user);
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "", UserInfo{});
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};
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}
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);
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}
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std::string AuthService::generateToken(const UserInfo& user) {
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if (jwtSecret_.empty()) {
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const char* envSecret = std::getenv("JWT_SECRET");
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jwtSecret_ = envSecret ? std::string(envSecret) : "your-jwt-secret";
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}
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auto token = jwt::create()
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.set_issuer("streaming-app")
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.set_type("JWS")
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.set_issued_at(std::chrono::system_clock::now())
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.set_expires_at(std::chrono::system_clock::now() + std::chrono::hours(24))
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.set_payload_claim("user_id", jwt::claim(std::to_string(user.id)))
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.set_payload_claim("username", jwt::claim(user.username))
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.set_payload_claim("is_admin", jwt::claim(std::to_string(user.isAdmin)))
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.set_payload_claim("is_streamer", jwt::claim(std::to_string(user.isStreamer)))
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.sign(jwt::algorithm::hs256{jwtSecret_});
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return token;
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}
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bool AuthService::validateToken(const std::string& token, UserInfo& userInfo) {
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if (jwtSecret_.empty()) {
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const char* envSecret = std::getenv("JWT_SECRET");
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jwtSecret_ = envSecret ? std::string(envSecret) : "your-jwt-secret";
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}
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try {
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auto decoded = jwt::decode(token);
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auto verifier = jwt::verify()
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.allow_algorithm(jwt::algorithm::hs256{jwtSecret_})
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.with_issuer("streaming-app");
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verifier.verify(decoded);
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userInfo.id = std::stoll(decoded.get_payload_claim("user_id").as_string());
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userInfo.username = decoded.get_payload_claim("username").as_string();
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userInfo.isAdmin = decoded.get_payload_claim("is_admin").as_string() == "1";
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userInfo.isStreamer = decoded.has_payload_claim("is_streamer") ?
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decoded.get_payload_claim("is_streamer").as_string() == "1" : false;
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return true;
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} catch (const std::exception& e) {
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LOG_DEBUG << "Token validation failed: " << e.what();
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return false;
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}
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}
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void AuthService::updatePassword(int64_t userId, const std::string& oldPassword,
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const std::string& newPassword,
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std::function<void(bool, const std::string&)> callback) {
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// Validate new password
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std::string error;
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if (!validatePassword(newPassword, error)) {
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callback(false, error);
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return;
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}
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auto dbClient = app().getDbClient();
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// Verify old password
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*dbClient << "SELECT password_hash FROM users WHERE id = $1"
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<< userId
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>> [oldPassword, newPassword, userId, dbClient, callback](const Result& r) {
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if (r.empty()) {
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callback(false, "User not found");
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return;
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}
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std::string hash = r[0]["password_hash"].as<std::string>();
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if (!BCrypt::validatePassword(oldPassword, hash)) {
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callback(false, "Incorrect password");
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return;
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}
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// Update password
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std::string newHash = BCrypt::generateHash(newPassword);
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*dbClient << "UPDATE users SET password_hash = $1 WHERE id = $2"
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<< newHash << userId
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>> [callback](const Result&) {
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callback(true, "");
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Failed to update password: " << e.base().what();
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callback(false, "Failed to update password");
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};
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}
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>> [callback](const DrogonDbException& e) {
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LOG_ERROR << "Database error: " << e.base().what();
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callback(false, "Database error");
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};
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}
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