/* * Copyright (c) 2022 Alibaba Group Holding Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include #include "common/route_rule_matcher.h" #include "extensions/jwt_auth/extractor.h" #include "jwt_verify_lib/check_audience.h" #include "jwt_verify_lib/jwt.h" #include "jwt_verify_lib/status.h" #include "jwt_verify_lib/struct_utils.h" #include "jwt_verify_lib/verify.h" #define ASSERT(_X) assert(_X) #ifndef NULL_PLUGIN #include "proxy_wasm_intrinsics.h" #else #include "include/proxy-wasm/null_plugin.h" namespace proxy_wasm { namespace null_plugin { namespace jwt_auth { #endif using ::google::jwt_verify::Status; using ::google::jwt_verify::StructUtils; struct FromHeader { std::string header; std::string value_prefix; }; struct ClaimToHeader { std::string header; bool override = true; }; using ClaimsMap = std::unordered_map; struct Consumer { std::string name; google::jwt_verify::JwksPtr jwks; ClaimsMap allowd_claims; std::vector from_headers = {{"Authorization", "Bearer "}}; std::vector from_params = {"access_token"}; std::vector from_cookies; uint64_t clock_skew = 60; bool keep_token = true; std::unordered_map claims_to_headers; ExtractorConstPtr extractor; }; struct JwtAuthConfigRule { std::vector consumers; std::vector enable_headers; }; // PluginRootContext is the root context for all streams processed by the // thread. It has the same lifetime as the worker thread and acts as target for // interactions that outlives individual stream, e.g. timer, async calls. class PluginRootContext : public RootContext, public RouteRuleMatcher { public: PluginRootContext(uint32_t id, std::string_view root_id) : RootContext(id, root_id) {} ~PluginRootContext() {} bool onConfigure(size_t) override; bool checkPlugin(const JwtAuthConfigRule&, const std::optional>&); bool configure(size_t); private: bool parsePluginConfig(const json&, JwtAuthConfigRule&) override; Status consumerVerify(const Consumer&, uint64_t, std::vector&); std::string extractCredential(const JwtAuthConfigRule&); }; // Per-stream context. class PluginContext : public Context { public: explicit PluginContext(uint32_t id, RootContext* root) : Context(id, root) {} FilterHeadersStatus onRequestHeaders(uint32_t, bool) override; private: inline PluginRootContext* rootContext() { return dynamic_cast(this->root()); } }; #ifdef NULL_PLUGIN } // namespace jwt_auth } // namespace null_plugin } // namespace proxy_wasm #endif