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authorThomas Lenz <thomas.lenz@egiz.gv.at>2020-02-05 15:31:09 +0100
committerThomas Lenz <thomas.lenz@egiz.gv.at>2020-02-05 15:31:09 +0100
commit8ebf6c4b08a008a96b4ac60167c26b48c30e97ce (patch)
tree0b55e8e57dcdfdb99a2bc72eab07a9429fc64af6 /eaaf_core/src/main/java/at
parent882789ecf04615abf8d5c80e3a0695d1cfc76fa0 (diff)
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refactor generic error-handling to solve possible invalid error-response in SL2.0
Diffstat (limited to 'eaaf_core/src/main/java/at')
-rw-r--r--eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java120
1 files changed, 73 insertions, 47 deletions
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
index c09efc37..dd113907 100644
--- a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/controller/AbstractController.java
@@ -21,16 +21,11 @@ package at.gv.egiz.eaaf.core.impl.idp.controller;
import java.io.IOException;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
-import org.apache.commons.text.StringEscapeUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.context.ApplicationContext;
-import org.springframework.web.bind.annotation.ExceptionHandler;
-
import at.gv.egiz.components.eventlog.api.EventConstants;
import at.gv.egiz.eaaf.core.api.IRequest;
import at.gv.egiz.eaaf.core.api.IStatusMessenger;
@@ -44,9 +39,17 @@ import at.gv.egiz.eaaf.core.exceptions.EaafException;
import at.gv.egiz.eaaf.core.exceptions.PendingReqIdValidationException;
import at.gv.egiz.eaaf.core.exceptions.ProcessExecutionException;
import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
+import at.gv.egiz.eaaf.core.impl.data.Pair;
import at.gv.egiz.eaaf.core.impl.utils.Random;
import at.gv.egiz.eaaf.core.impl.utils.ServletUtils;
+import org.apache.commons.text.StringEscapeUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.ApplicationContext;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+
/**
* Basic application controller that implements core error-handling.
*
@@ -142,6 +145,65 @@ public abstract class AbstractController {
final HttpServletRequest req, final HttpServletResponse resp, IRequest pendingReq)
throws IOException, EaafException {
+ final Pair<IRequest, Throwable> errorToHandle =
+ exractExceptionThatShouldBeLogged(pendingReq, exceptionThrown);
+
+ try {
+ final String errorKey = storeErrorAndGetErrorToken(errorToHandle);
+
+ // 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);
+
+ return;
+
+ } catch (final Exception e) {
+ log.warn("Default error-handling FAILED. Exception can not be stored ....", e);
+ log.info("Switch to generic generic backup error-handling ... ");
+ protAuthService.handleErrorNoRedirect(errorToHandle.getSecond(), req, resp, true);
+
+ }
+
+ }
+
+ protected 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;
+
+ }
+
+ protected String storeErrorAndGetErrorToken(Pair<IRequest, Throwable> errorToHandle) throws EaafException {
+ // log error directly in debug mode
+ if (log.isDebugEnabled()) {
+ log.warn(errorToHandle.getSecond().getMessage(), errorToHandle.getSecond());
+ }
+
+ // put exception into transaction store for redirect
+ final String errorKey = Random.nextLongRandom();
+ if (errorToHandle.getFirst() != null) {
+ revisionsLogger.logEvent(errorToHandle.getFirst(), EventConstants.TRANSACTION_ERROR);
+ transactionStorage.put(errorKey, new ExceptionContainer(errorToHandle.getFirst(), errorToHandle
+ .getSecond()), -1);
+
+ } else {
+ transactionStorage.put(errorKey, new ExceptionContainer(null, errorToHandle.getSecond()), -1);
+
+ }
+
+ return errorKey;
+
+ }
+
+ @Nonnull
+ protected Pair<IRequest, Throwable> exractExceptionThatShouldBeLogged(
+ @Nullable IRequest pendingReq, @Nonnull Throwable exceptionThrown) {
Throwable loggedException = null;
final Throwable extractedException =
extractOriginalExceptionFromProcessException(exceptionThrown);
@@ -155,8 +217,10 @@ public abstract class AbstractController {
} else if (exceptionThrown instanceof PendingReqIdValidationException) {
log.trace(
"Find pendingRequestId validation exception. Looking for invalid pending-request ... ");
+
if (((PendingReqIdValidationException) exceptionThrown).getInvalidPendingReq() != null) {
pendingReq = ((PendingReqIdValidationException) exceptionThrown).getInvalidPendingReq();
+
}
}
@@ -164,49 +228,11 @@ public abstract class AbstractController {
// use TaskExecutionException directly, if no Original Exeception is included
if (loggedException == null) {
loggedException = exceptionThrown;
- }
-
- try {
- // switch to protocol-finalize method to generate a protocol-specific error
- // message
-
- // log error directly in debug mode
- if (log.isDebugEnabled()) {
- log.warn(loggedException.getMessage(), loggedException);
- }
-
- // put exception into transaction store for redirect
- final String key = Random.nextLongRandom();
- if (pendingReq != null) {
- revisionsLogger.logEvent(pendingReq, EventConstants.TRANSACTION_ERROR);
- transactionStorage.put(key, new ExceptionContainer(pendingReq, loggedException), -1);
-
- } else {
- transactionStorage.put(key, new ExceptionContainer(null, loggedException), -1);
-
- }
-
- // build up redirect URL
- String redirectUrl = null;
- redirectUrl = ServletUtils.getBaseUrl(req);
- redirectUrl += "/" + ProtocolFinalizationController.ENDPOINT_ERRORHANDLING + "?"
- + EaafConstants.PARAM_HTTP_ERROR_CODE + "=" + key;
-
- resp.setContentType("text/html");
- resp.setStatus(302);
-
- resp.addHeader("Location", redirectUrl);
- log.debug("REDIRECT TO: " + redirectUrl);
-
- return;
-
- } catch (final Exception e) {
- log.warn("Default error-handling FAILED. Exception can not be stored ....", e);
- log.info("Switch to generic generic backup error-handling ... ");
- protAuthService.handleErrorNoRedirect(loggedException, req, resp, true);
}
+ return Pair.newInstance(pendingReq, loggedException);
+
}
/**