mirror of
https://github.com/alibaba/higress.git
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106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
/*
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* Copyright (c) 2022 Alibaba Group Holding Ltd.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <assert.h>
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#include <cstdint>
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#include <string>
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#include <unordered_map>
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#include <unordered_set>
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#include "common/route_rule_matcher.h"
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#include "jwt-cpp/jwt.h"
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#define ASSERT(_X) assert(_X)
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#ifndef NULL_PLUGIN
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#include "proxy_wasm_intrinsics.h"
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#else
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#include "include/proxy-wasm/null_plugin.h"
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namespace proxy_wasm {
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namespace null_plugin {
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namespace oauth {
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#endif
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struct Consumer {
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std::string name;
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std::string client_id;
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std::string client_secret;
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};
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struct OAuthConfigRule {
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std::unordered_map<std::string, Consumer> consumers;
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std::string issuer = "Higress-Gateway";
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std::string auth_header_name = "Authorization";
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std::string auth_path = "/oauth2/token";
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bool global_credentials = true;
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uint64_t token_ttl = 7200;
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bool keep_token = true;
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uint64_t clock_skew = 60;
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};
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// PluginRootContext is the root context for all streams processed by the
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// thread. It has the same lifetime as the worker thread and acts as target for
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// interactions that outlives individual stream, e.g. timer, async calls.
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class PluginRootContext : public RootContext,
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public RouteRuleMatcher<OAuthConfigRule> {
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public:
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PluginRootContext(uint32_t id, std::string_view root_id)
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: RootContext(id, root_id) {}
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~PluginRootContext() {}
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bool onConfigure(size_t) override;
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bool checkPlugin(const OAuthConfigRule&,
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const std::optional<std::unordered_set<std::string>>&,
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const std::string&);
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bool configure(size_t);
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bool generateToken(const OAuthConfigRule& rule, const std::string& route_name,
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const absl::string_view& raw_params, std::string* token,
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std::string* err_msg);
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private:
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bool parsePluginConfig(const json&, OAuthConfigRule&) override;
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};
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// Per-stream context.
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class PluginContext : public Context {
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public:
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explicit PluginContext(uint32_t id, RootContext* root) : Context(id, root) {}
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FilterHeadersStatus onRequestHeaders(uint32_t, bool) override;
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FilterDataStatus onRequestBody(size_t, bool) override;
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private:
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inline PluginRootContext* rootContext() {
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return dynamic_cast<PluginRootContext*>(this->root());
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}
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std::string route_name_;
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std::optional<std::reference_wrapper<OAuthConfigRule>> config_;
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bool check_body_params_ = false;
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size_t body_total_size_ = 0;
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};
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#ifdef NULL_PLUGIN
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} // namespace oauth
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} // namespace null_plugin
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} // namespace proxy_wasm
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#endif
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