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@@ -0,0 +1,74 @@
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+/*
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+ * Copyright 2016 http://www.hswebframework.org
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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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+ *
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+ */
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+
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+package org.hswebframework.web.authorization.oauth2.controller;
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+
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+import org.hswebframework.web.BusinessException;
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+import org.hswebframework.web.authorization.oauth2.client.OAuth2RequestService;
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+import org.hswebframework.web.authorization.oauth2.client.listener.OAuth2CodeAuthBeforeEvent;
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+import org.hswebframework.web.controller.message.ResponseMessage;
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+import org.hswebframework.web.id.IDGenerator;
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+import org.springframework.beans.factory.annotation.Autowired;
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+import org.springframework.stereotype.Controller;
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+import org.springframework.web.bind.annotation.*;
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+import org.springframework.web.servlet.ModelAndView;
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+
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+import javax.servlet.http.HttpSession;
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+import java.util.Map;
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+
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+/**
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+ * @author zhouhao
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+ */
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+@Controller
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+@RequestMapping("${hsweb.web.mappings.oauth2-client-callback:oauth2}")
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+public class OAuth2ClientController {
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+
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+ private OAuth2RequestService oAuth2RequestService;
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+
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+ @Autowired
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+ public void setoAuth2RequestService(OAuth2RequestService oAuth2RequestService) {
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+ this.oAuth2RequestService = oAuth2RequestService;
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+ }
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+
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+ private static final String STATE_SESSION_KEY = "OAUTH2_STATE";
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+
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+ @GetMapping("/state")
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+ @ResponseBody
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+ public ResponseMessage<String> requestState(HttpSession session) {
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+ String state = IDGenerator.RANDOM.generate();
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+ session.setAttribute(STATE_SESSION_KEY, state);
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+ return ResponseMessage.ok(state);
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+ }
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+
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+ @GetMapping("/callback/{serverId}")
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+ public ModelAndView callback(@RequestParam(defaultValue = "/") String redirect
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+ , @PathVariable String serverId
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+ , @RequestParam String code
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+ , @RequestParam String state
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+ , @RequestParam Map<String, Object> param
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+ , HttpSession session) {
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+ try {
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+ String cachedState = (String) session.getAttribute(STATE_SESSION_KEY);
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+ if (!state.equals(cachedState)) throw new BusinessException("state error");
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+ oAuth2RequestService.doEvent(serverId, new OAuth2CodeAuthBeforeEvent(code, state, param::get));
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+ return new ModelAndView("redirect:" + redirect);
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+ } finally {
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+ session.removeAttribute(STATE_SESSION_KEY);
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+ }
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+ }
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+}
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zhouhao