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-rw-r--r--src/web_service/verify_user_jwt.cpp60
1 files changed, 60 insertions, 0 deletions
diff --git a/src/web_service/verify_user_jwt.cpp b/src/web_service/verify_user_jwt.cpp
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+++ b/src/web_service/verify_user_jwt.cpp
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+// Copyright 2018 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <system_error>
+#include <jwt/jwt.hpp>
+#include "common/logging/log.h"
+#include "web_service/verify_user_jwt.h"
+#include "web_service/web_backend.h"
+#include "web_service/web_result.h"
+
+namespace WebService {
+
+static std::string public_key;
+std::string GetPublicKey(const std::string& host) {
+ if (public_key.empty()) {
+ Client client(host, "", ""); // no need for credentials here
+ public_key = client.GetPlain("/jwt/external/key.pem", true).returned_data;
+ if (public_key.empty()) {
+ LOG_ERROR(WebService, "Could not fetch external JWT public key, verification may fail");
+ } else {
+ LOG_INFO(WebService, "Fetched external JWT public key (size={})", public_key.size());
+ }
+ }
+ return public_key;
+}
+
+VerifyUserJWT::VerifyUserJWT(const std::string& host) : pub_key(GetPublicKey(host)) {}
+
+Network::VerifyUser::UserData VerifyUserJWT::LoadUserData(const std::string& verify_UID,
+ const std::string& token) {
+ const std::string audience = fmt::format("external-{}", verify_UID);
+ using namespace jwt::params;
+ std::error_code error;
+ auto decoded =
+ jwt::decode(token, algorithms({"rs256"}), error, secret(pub_key), issuer("yuzu-core"),
+ aud(audience), validate_iat(true), validate_jti(true));
+ if (error) {
+ LOG_INFO(WebService, "Verification failed: category={}, code={}, message={}",
+ error.category().name(), error.value(), error.message());
+ return {};
+ }
+ Network::VerifyUser::UserData user_data{};
+ if (decoded.payload().has_claim("username")) {
+ user_data.username = decoded.payload().get_claim_value<std::string>("username");
+ }
+ if (decoded.payload().has_claim("displayName")) {
+ user_data.display_name = decoded.payload().get_claim_value<std::string>("displayName");
+ }
+ if (decoded.payload().has_claim("avatarUrl")) {
+ user_data.avatar_url = decoded.payload().get_claim_value<std::string>("avatarUrl");
+ }
+ if (decoded.payload().has_claim("roles")) {
+ auto roles = decoded.payload().get_claim_value<std::vector<std::string>>("roles");
+ user_data.moderator = std::find(roles.begin(), roles.end(), "moderator") != roles.end();
+ }
+ return user_data;
+}
+
+} // namespace WebService