feat: 增加用户获取器

src/main/java/dev/flyfish/boot/cas/config/CASConfig.java

@@ -1,5 +1,6 @@
 package dev.flyfish.boot.cas.config;
 
+import dev.flyfish.boot.cas.config.resolver.CASUserArgumentResolver;
 import dev.flyfish.boot.cas.config.session.WebSessionDecorator;
 import dev.flyfish.boot.cas.config.session.WebSessionListener;
 import dev.flyfish.boot.cas.filter.CASFilter;
@@ -9,6 +10,8 @@ import org.springframework.boot.autoconfigure.web.ServerProperties;
 import org.springframework.boot.context.properties.ConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.web.reactive.config.WebFluxConfigurer;
+import org.springframework.web.reactive.result.method.annotation.ArgumentResolverConfigurer;
 import org.springframework.web.server.WebSession;
 import org.springframework.web.server.session.DefaultWebSessionManager;
 import org.springframework.web.server.session.InMemoryWebSessionStore;
@@ -25,7 +28,12 @@ import java.util.List;
  * @author wangyu
  */
 @Configuration
-public class CASConfig {
+public class CASConfig implements WebFluxConfigurer {
+
+    @Override
+    public void configureArgumentResolvers(ArgumentResolverConfigurer configurer) {
+        configurer.addCustomResolver(new CASUserArgumentResolver());
+    }
 
     @Bean
     @ConfigurationProperties("cas.filter")

src/main/java/dev/flyfish/boot/cas/config/annotation/CASUser.java

@@ -0,0 +1,9 @@
+package dev.flyfish.boot.cas.config.annotation;
+
+import java.lang.annotation.*;
+
+@Documented
+@Retention(RetentionPolicy.RUNTIME)
+@Target(ElementType.PARAMETER)
+public @interface CASUser {
+}

src/main/java/dev/flyfish/boot/cas/config/resolver/CASUserArgumentResolver.java

@@ -0,0 +1,27 @@
+package dev.flyfish.boot.cas.config.resolver;
+
+import dev.flyfish.boot.cas.config.annotation.CASUser;
+import dev.flyfish.boot.cas.filter.CASLoginFilter;
+import org.springframework.core.MethodParameter;
+import org.springframework.core.ReactiveAdapterRegistry;
+import org.springframework.web.reactive.BindingContext;
+import org.springframework.web.reactive.result.method.HandlerMethodArgumentResolverSupport;
+import org.springframework.web.server.ServerWebExchange;
+import reactor.core.publisher.Mono;
+
+public class CASUserArgumentResolver extends HandlerMethodArgumentResolverSupport {
+
+    public CASUserArgumentResolver() {
+        super(ReactiveAdapterRegistry.getSharedInstance());
+    }
+
+    @Override
+    public boolean supportsParameter(MethodParameter parameter) {
+        return checkAnnotatedParamNoReactiveWrapper(parameter, CASUser.class, (anno, type) -> true);
+    }
+
+    @Override
+    public Mono<Object> resolveArgument(MethodParameter parameter, BindingContext bindingContext, ServerWebExchange exchange) {
+        return exchange.getSession().mapNotNull(session -> session.getAttribute(CASLoginFilter.CONST_CAS_USERNAME));
+    }
+}

src/main/java/dev/flyfish/boot/cas/controller/IndexController.java

@@ -1,5 +1,6 @@
 package dev.flyfish.boot.cas.controller;
 
+import dev.flyfish.boot.cas.config.annotation.CASUser;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -14,7 +15,7 @@ public class IndexController {
     }
 
     @GetMapping("/hello")
-    public Object hello() {
-        return Map.of("message", "Hello World!");
+    public Object hello(@CASUser String user) {
+        return Map.of("message", "Hello World!", "user", user);
     }
 }

src/main/java/dev/flyfish/boot/cas/validator/SecureURL.java

@@ -7,6 +7,7 @@ import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.net.URI;
 import java.net.URL;
 import java.net.URLConnection;
 import java.nio.charset.StandardCharsets;
@@ -27,29 +28,17 @@ public class SecureURL {
             log.trace("entering retrieve(" + url + ")");
         }
 
-        BufferedReader r = null;
+        URL u = URI.create(url).toURL();
+        URLConnection uc = u.openConnection();
+        uc.setRequestProperty("Connection", "close");
+        InputStream in = uc.getInputStream();
 
-        try {
-            URL u = new URL(url);
-            URLConnection uc = u.openConnection();
-            uc.setRequestProperty("Connection", "close");
-            InputStream in = uc.getInputStream();
-
-            ByteArrayOutputStream output = new ByteArrayOutputStream();
-
-            for (int chByte = in.read(); chByte != -1; chByte = in.read()) {
-                output.write(chByte);
-            }
-
-            return output.toString(StandardCharsets.UTF_8);
-        } finally {
-            try {
-                if (r != null) {
-                    r.close();
-                }
-            } catch (IOException var14) {
-            }
+        ByteArrayOutputStream output = new ByteArrayOutputStream();
 
+        for (int chByte = in.read(); chByte != -1; chByte = in.read()) {
+            output.write(chByte);
         }
+
+        return output.toString(StandardCharsets.UTF_8);
     }
 }