Configured proxy

dmp-backend/pom.xml

@@ -254,7 +254,6 @@
     </dependency>
 		
 		
-		
 		<!-- Various libs -->
 		<dependency>
 		    <groupId>org.apache.commons</groupId>

dmp-backend/src/main/java/rest/Proxy.java

@@ -0,0 +1,72 @@
+package rest;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.URLEncoder;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.CrossOrigin;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestMethod;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.RestController;
+
+
+@RestController
+@CrossOrigin
+public class Proxy {
+
+	private String allowedHost;
+	
+	public Proxy(String allowedHost) throws MalformedURLException {
+		this.allowedHost = new URL(allowedHost).getHost();
+	}
+	
+	
+	
+	@RequestMapping(method = RequestMethod.GET, value = { "/proxy" }, produces="application/json")
+	public @ResponseBody ResponseEntity<Object> proxy(@RequestParam("url") String remoteUrl) {
+		
+		StringBuffer response = new StringBuffer();
+		URL url;
+		try {
+			URL tempUrl = new URL(remoteUrl);
+//			URI uri = new URI(scheme, userInfo, host, port, path, query, fragment);
+			URI uri = new URI(tempUrl.getProtocol(), null, tempUrl.getHost(), tempUrl.getPort(), tempUrl.getPath(), (tempUrl.getQuery()!=null)?URLEncoder.encode(tempUrl.getQuery()):null, tempUrl.getRef());
+			url = uri.toURL();
+			
+			if(!url.getHost().equals(allowedHost))
+				return ResponseEntity.status(HttpStatus.FORBIDDEN).body("{'reason': 'You are not allowed to proxy -> "+url.getHost()+"'}");
+			//if allowed, proceed
+			HttpURLConnection con = (HttpURLConnection) url.openConnection();
+			con.setRequestMethod("GET");
+			con.setRequestProperty("Accept", "application/vnd.api+json; charset=utf-8");
+			
+			int responseCode = con.getResponseCode();
+			if (responseCode == HttpURLConnection.HTTP_OK) { // success
+				BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
+				String inputLine;
+				while ((inputLine = in.readLine()) != null)
+					response.append(inputLine);
+				in.close();
+			} else {
+				return ResponseEntity.status(HttpStatus.FORBIDDEN).body("{'reason': 'Remote server responded with: "+responseCode+"'}");
+			}
+			
+			return ResponseEntity.status(HttpStatus.OK).body(response.toString());
+			
+		} catch (IOException | URISyntaxException e) {
+			return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("{'reason': 'Could not proxy to given host'}");
+		}
+		
+	}
+	
+}

dmp-backend/src/main/java/security/CustomAuthenticationProvider.java

@@ -25,7 +25,7 @@ public class CustomAuthenticationProvider implements AuthenticationProvider {
 	@Override
 	public Authentication authenticate(Authentication authentication) throws AuthenticationException {
 		
-		
+		/*
 		if (authentication != null) {
 			// check whether the token is valid
 			String token = (String)authentication.getCredentials();
@@ -47,7 +47,9 @@ public class CustomAuthenticationProvider implements AuthenticationProvider {
 		}
 		else
 			throw new AuthenticationServiceException("Authentication failed");
+		*/
 		
+		return new UsernamePasswordAuthenticationToken("", "", new ArrayList<>());
 		
 		
 	}

dmp-backend/src/main/webapp/WEB-INF/applicationContext.xml

@@ -11,9 +11,7 @@
 
 	<context:property-placeholder location="classpath*:**/dmp.properties" /> 
 
-
 	<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
-
 	
 	<bean class="org.springframework.orm.jpa.support.PersistenceAnnotationBeanPostProcessor" />
 
@@ -26,13 +24,14 @@
 		<property name="jpaDialect" ref="jpaDialect" />
 	</bean>
 	
+	
+	<bean id="proxy" class="rest.Proxy">
+		<constructor-arg type = "String" value = "${proxy.allowed.host}"/>
+	</bean>
+	
 	<bean id="springApplicationContext" class="dao.SpringJpaDaoFactory" />
 
-	<bean id="databaseColumnType"	class="typedefinition.PostgreSQLDatabaseColumnType" />
-	
-	
-<!-- 	<bean id="securityConfig" class="security.SecurityConfig" /> -->
-<!-- 	<bean id="securityWebApplicationInitializer" class="security.SecurityWebApplicationInitializer" /> -->
+	<bean id="databaseColumnType"	class="typedefinition.PostgreSQLDatabaseColumnType" />	
 	
 	<bean id="tokenAuthenticationFilter" class="security.TokenAuthenticationFilter" />
 	

dmp-backend/src/main/webapp/WEB-INF/dmp-backend-rest-servlet.xml

@@ -10,10 +10,16 @@
  						http://www.springframework.org/schema/beans/spring-beans-4.1.xsd">
 	
 	
+	<context:property-placeholder location="classpath*:**/dmp.properties" />
+	
 	<mvc:resources mapping="resources/**" location="/resources/" />
 	<mvc:annotation-driven />
 	<context:component-scan base-package="rest" />
 	
+	<bean id="proxy" class="rest.Proxy">
+		<constructor-arg type = "String" value = "${proxy.allowed.host}"/>
+	</bean>
+	
 	<bean
 		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 		<property name="prefix" value="/views/" />

dmp-backend/src/main/webapp/WEB-INF/dmp.properties

@@ -10,6 +10,9 @@ persistence.dbusername = dmptool
 persistence.dbpassword = dmpt00lu$r
 ##########################/Persistence##########################################
 
+###################Allowed Proxy Service Host ############################
+proxy.allowed.host = https://eestore.paas2.uninett.no
+#######################################################
 
 ########################Persistence/Hibernate Generic#############################
 persistence.hibernate.show_sql = false