From a19b85723223dbefff7f34a59421c2d2edf3261f Mon Sep 17 00:00:00 2001
From: Thomas Lenz <thomas.lenz@egiz.gv.at>
Date: Wed, 1 Apr 2020 23:17:27 +0200
Subject: update process-engine support HTTP POST and GET error forwarting.
 This is needed for processes in IFrames

---
 .../services/ProtocolAuthenticationService.java    | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/ProtocolAuthenticationService.java')

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/ProtocolAuthenticationService.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/ProtocolAuthenticationService.java
index 4c82adac..5f84d118 100644
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/ProtocolAuthenticationService.java
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/ProtocolAuthenticationService.java
@@ -69,9 +69,12 @@ import at.gv.egiz.eaaf.core.exceptions.GuiBuildException;
 import at.gv.egiz.eaaf.core.exceptions.InvalidProtocolRequestException;
 import at.gv.egiz.eaaf.core.exceptions.ProcessExecutionException;
 import at.gv.egiz.eaaf.core.exceptions.ProtocolNotActiveException;
+import at.gv.egiz.eaaf.core.impl.data.Pair;
 import at.gv.egiz.eaaf.core.impl.gui.AbstractGuiFormBuilderConfiguration;
 import at.gv.egiz.eaaf.core.impl.http.HttpUtils;
+import at.gv.egiz.eaaf.core.impl.idp.controller.ProtocolFinalizationController;
 import at.gv.egiz.eaaf.core.impl.idp.controller.protocols.RequestImpl;
+import at.gv.egiz.eaaf.core.impl.utils.ServletUtils;
 
 @Service
 public class ProtocolAuthenticationService implements IProtocolAuthenticationService {
@@ -289,6 +292,46 @@ public class ProtocolAuthenticationService implements IProtocolAuthenticationSer
 
   }
 
+  @Override
+  public void forwardToErrorHandler(Pair<IRequest, Throwable> errorToHandle, String errorKey,
+      final HttpServletRequest req, final HttpServletResponse resp) throws GuiBuildException {
+    IGuiBuilderConfiguration parentHopGuiConfig = 
+        evaluateRequiredErrorHandlingMethod(errorToHandle.getFirst(), errorKey);
+    if (parentHopGuiConfig != null) {
+      log.trace("iFrame to parent hop requested. Building GUI step for error handling ... ");
+      guiBuilder.build(req, resp, parentHopGuiConfig, "iFrame-to-parent");
+      
+    } else {      
+      // build up redirect URL
+      final String redirectUrl = generateErrorRedirectUrl(req, errorKey);
+      resp.setContentType("text/html");
+      resp.setStatus(302);
+      resp.addHeader("Location", redirectUrl);
+      log.debug("REDIRECT TO: " + redirectUrl);
+      
+    }
+  }
+  
+  private IGuiBuilderConfiguration evaluateRequiredErrorHandlingMethod(IRequest first, String errorId) {
+    if (first != null && first.isProcessInIframe()) {
+      return guiConfigFactory.getDefaultIFrameParentHopGui(first, 
+          "/" + ProtocolFinalizationController.ENDPOINT_ERRORHANDLING,
+          errorId);
+    
+    }
+
+    return null;
+  }
+  
+  private String generateErrorRedirectUrl(final HttpServletRequest req, String errorKey) {
+    String redirectUrl = null;
+    redirectUrl = ServletUtils.getBaseUrl(req);
+    redirectUrl += "/" + ProtocolFinalizationController.ENDPOINT_ERRORHANDLING + "?"
+        + EaafConstants.PARAM_HTTP_ERROR_CODE + "=" + errorKey;
+    return redirectUrl;
+
+  }
+  
   public void setGuiBuilder(final IGuiFormBuilder guiBuilder) {
     this.guiBuilder = guiBuilder;
   }
-- 
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