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SEBSERV-435 gui and monitoring implementation
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src/main/java/ch/ethz/seb/sebserver/gui/ScreenProctoringServlet.java
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| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * Copyright (c) 2023 ETH Zürich, Educational Development and Technology (LET) | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
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| package ch.ethz.seb.sebserver.gui; | ||
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| import java.io.IOException; | ||
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| import javax.servlet.ServletContext; | ||
| import javax.servlet.ServletException; | ||
| import javax.servlet.http.HttpServlet; | ||
| import javax.servlet.http.HttpServletRequest; | ||
| import javax.servlet.http.HttpServletResponse; | ||
| import javax.servlet.http.HttpSession; | ||
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| import org.springframework.stereotype.Component; | ||
| import org.springframework.web.context.WebApplicationContext; | ||
| import org.springframework.web.context.support.WebApplicationContextUtils; | ||
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| import ch.ethz.seb.sebserver.gbl.model.user.UserInfo; | ||
| import ch.ethz.seb.sebserver.gbl.profile.GuiProfile; | ||
| import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.AuthorizationContextHolder; | ||
| import ch.ethz.seb.sebserver.gui.service.remote.webservice.auth.SEBServerAuthorizationContext; | ||
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| @Component | ||
| @GuiProfile | ||
| public class ScreenProctoringServlet extends HttpServlet { | ||
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| private static final long serialVersionUID = 4147410676185956971L; | ||
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| @Override | ||
| protected void doGet( | ||
| final HttpServletRequest req, | ||
| final HttpServletResponse resp) throws ServletException, IOException { | ||
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| final HttpSession httpSession = req.getSession(); | ||
| final ServletContext servletContext = httpSession.getServletContext(); | ||
| final WebApplicationContext webApplicationContext = WebApplicationContextUtils | ||
| .getRequiredWebApplicationContext(servletContext); | ||
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| final UserInfo user = isAuthenticated(httpSession, webApplicationContext); | ||
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| // TODO https://stackoverflow.com/questions/46582/response-redirect-with-post-instead-of-get | ||
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| final String hello = "Hello"; | ||
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| // StringBuilder sb = new StringBuilder(); | ||
| // sb.Append("<html>"); | ||
| // sb.AppendFormat(@"<body onload='document.forms[""form""].submit()'>"); | ||
| // sb.AppendFormat("<form name='form' action='{0}' method='post'>",postbackUrl); | ||
| // sb.AppendFormat("<input type='hidden' name='id' value='{0}'>", id); | ||
| // // Other params go here | ||
| // sb.Append("</form>"); | ||
| // sb.Append("</body>"); | ||
| // sb.Append("</html>"); | ||
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| resp.getOutputStream().println(hello); | ||
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| } | ||
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| private UserInfo isAuthenticated( | ||
| final HttpSession httpSession, | ||
| final WebApplicationContext webApplicationContext) { | ||
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| final AuthorizationContextHolder authorizationContextHolder = webApplicationContext | ||
| .getBean(AuthorizationContextHolder.class); | ||
| final SEBServerAuthorizationContext authorizationContext = authorizationContextHolder | ||
| .getAuthorizationContext(httpSession); | ||
| if (!authorizationContext.isValid() || !authorizationContext.isLoggedIn()) { | ||
| throw new RuntimeException("No authentication found"); | ||
| } | ||
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| return authorizationContext.getLoggedInUser().getOrThrow(); | ||
| } | ||
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| } |
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