feat(core): add ticket-based error-handling service as EAAF core functionality

10 files changed, 1011 insertions, 0 deletions

diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/data/ErrorConfig.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/data/ErrorConfig.java
new file mode 100644
index 00000000..b9cacb1c
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/data/ErrorConfig.java
@@ -0,0 +1,65 @@
+package at.gv.egiz.eaaf.core.impl.data;
+
+import java.util.List;
+
+import at.gv.egiz.eaaf.core.impl.idp.auth.services.IErrorService.ActionType;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import lombok.ToString;
+import lombok.extern.slf4j.Slf4j;
+
+@ToString
+@Builder
+@Slf4j
+@NoArgsConstructor
+@AllArgsConstructor
+public class ErrorConfig {
+
+  @Getter 
+  @Setter  
+  private String action;
+
+  @Getter
+  @Setter
+  private String externalCode;
+
+  @Getter 
+  @Setter  
+  private String logLevel;
+  
+  
+  @Getter 
+  @Setter  
+  private List<String> internalCode;
+    
+  @Getter 
+  @Setter
+  private Boolean defaultConfig;
+    
+  @Getter 
+  @Setter
+  @Builder.Default
+  private Boolean useInternalAsExternal = false;
+  
+  /**
+   * Get type of error-handling flow.
+   * 
+   * @return flow type
+   */
+  public ActionType getActionType() {
+    ActionType actionType = ActionType.fromString(action);
+    if (actionType == null) {
+      log.warn("Find unsupported Error-Handling-Flow: {}. Use: {} as backup",
+          action, ActionType.TICKET);
+      actionType = ActionType.TICKET;
+      
+    }
+    
+    return actionType;
+    
+  }
+   
+}
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/TicketErrorService.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/TicketErrorService.java
new file mode 100644
index 00000000..557614e6
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/idp/auth/services/TicketErrorService.java
@@ -0,0 +1,234 @@
+package at.gv.egiz.eaaf.core.impl.idp.auth.services;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URISyntaxException;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.annotation.Nonnull;
+import javax.annotation.PostConstruct;
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.commons.io.IOUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.text.StringEscapeUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.io.Resource;
+import org.springframework.core.io.ResourceLoader;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.type.CollectionType;
+import com.fasterxml.jackson.databind.type.TypeFactory;
+
+import at.gv.egiz.eaaf.core.api.IStatusMessenger;
+import at.gv.egiz.eaaf.core.api.data.EaafConstants;
+import at.gv.egiz.eaaf.core.api.gui.ModifyableGuiBuilderConfiguration;
+import at.gv.egiz.eaaf.core.api.idp.IConfiguration;
+import at.gv.egiz.eaaf.core.api.utils.IPendingRequestIdGenerationStrategy;
+import at.gv.egiz.eaaf.core.exceptions.EaafException;
+import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
+import at.gv.egiz.eaaf.core.impl.data.ErrorConfig;
+import at.gv.egiz.eaaf.core.impl.gui.AbstractGuiFormBuilderConfiguration;
+import at.gv.egiz.eaaf.core.impl.idp.controller.ProtocolFinalizationController;
+import at.gv.egiz.eaaf.core.impl.utils.DefaultYamlMapper;
+import at.gv.egiz.eaaf.core.impl.utils.FileUtils;
+import at.gv.egiz.eaaf.core.impl.utils.ServletUtils;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.var;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public abstract class TicketErrorService implements IErrorService {
+  private static final String CONFIG_PROP_ERROR_HANDLING_CONFIG_PATH = "core.error.handling.config";
+  private static final String TECH_LOG_MSG = "errorCode={0} Message={1}";
+  private static final String TICKET_LOG_MSG = "Ticket={2} errorCode={0} Message={1}";
+
+  private final List<ErrorConfig> errorConfigList = new ArrayList<>();
+
+
+  @Autowired
+  IConfiguration basicConfig;
+  
+  @Autowired
+  ResourceLoader resourceLoader;
+  
+  @Autowired
+  IPendingRequestIdGenerationStrategy requestIdValidationStragegy;
+
+  @Override
+  public String getExternalCodeFromInternal(String internalCode) {
+    ErrorConfig errorConfig = findByInternalCode(internalCode);    
+    return StringUtils.isNotEmpty(errorConfig.getExternalCode()) 
+        ? errorConfig.getExternalCode() 
+        : errorConfig.getUseInternalAsExternal() 
+            ? internalCode 
+            : IStatusMessenger.CODES_EXTERNAL_ERROR_GENERIC;
+                    
+  }
+
+  @Override
+  public IHandleData createHandleData(Throwable throwable, boolean supportRedirctToSp) throws EaafException {
+    String internalErrorId = extractInternalErrorCode(throwable);    
+    ErrorConfig errorFlowConfig = findByInternalCode(internalErrorId);    
+    ActionType errorHandlingFlow = errorFlowConfig.getActionType();
+    
+    return HandleData.builder()
+        .throwable(throwable)
+        .internalErrorCode(internalErrorId)
+        .actionType(errorHandlingFlow)
+        .logLevel(LogLevel.fromString(errorFlowConfig.getLogLevel()))
+        .supportTicket(ActionType.TICKET.equals(errorHandlingFlow) ? generateSupportTicket() : null)
+        .errorIdTokenForRedirect(
+            supportRedirctToSp ? requestIdValidationStragegy.generateExternalPendingRequestId() : null)       
+        .build();      
+
+  }
+
+  @Override
+  public void displayErrorData(ModifyableGuiBuilderConfiguration c, IErrorService.IHandleData errorData, 
+      HttpServletRequest httpReq) throws EaafException {
+    if (!(errorData instanceof TicketErrorService.HandleData)) {
+      throw new EaafException(IStatusMessenger.CODES_INTERNAL_ERROR_GENERIC);
+    }
+    var ed = (TicketErrorService.HandleData) errorData;
+    
+    // set SupportTicket
+    c.putCustomParameter(AbstractGuiFormBuilderConfiguration.PARAM_GROUP_MSG, PARAM_GUI_TICKET, ed.getSupportTicket());
+    
+    // set redirect to SP path 
+    if (StringUtils.isNotEmpty(ed.getErrorIdTokenForRedirect())) {
+      c.putCustomParameterWithOutEscaption(
+          AbstractGuiFormBuilderConfiguration.PARAM_GROUP_MSG, PARAM_GUI_REDIRECT, 
+          generateRedirect(httpReq, ed.getErrorIdTokenForRedirect()));
+      
+    }
+  }
+
+  /**
+   * Generate a application-specific support-ticket. 
+   * 
+   * @return Support ticket for error screen
+   */
+  protected abstract String generateSupportTicket();
+  
+  
+  @Nonnull
+  private ErrorConfig findByInternalCode(@Nonnull String seekedInternalCode) {
+    return errorConfigList.stream()
+          .filter(c -> c.getInternalCode() != null && c.getInternalCode().contains(seekedInternalCode))
+          .findFirst()
+          .orElse(
+              errorConfigList.stream()
+                .filter(c -> c.getDefaultConfig() != null && c.getDefaultConfig().equals(true))
+                .findFirst()
+                .orElse(ErrorConfig.builder()
+                    .action(ActionType.TICKET.toString())
+                    .externalCode(IStatusMessenger.CODES_INTERNAL_ERROR_GENERIC)
+                    .logLevel("ERROR")
+                    .defaultConfig(true)
+                    .build())
+                );
+    
+  }
+
+  private String extractInternalErrorCode(Throwable throwable) {
+    Throwable originalException;
+    if (throwable instanceof TaskExecutionException
+        && ((TaskExecutionException) throwable).getOriginalException() != null) {
+      originalException = ((TaskExecutionException) throwable).getOriginalException();
+
+    } else {
+      originalException = throwable;
+
+    }
+
+    if (!(originalException instanceof EaafException)) {
+      return IStatusMessenger.CODES_INTERNAL_ERROR_GENERIC;
+
+    } else {
+      return ((EaafException) originalException).getErrorId();
+
+    }
+  }
+  
+  private String generateRedirect(HttpServletRequest httpReq, String errorTokenId) {
+    String redirectUrl = ServletUtils.getBaseUrl(httpReq);
+    redirectUrl += ProtocolFinalizationController.ENDPOINT_ERROR_REDIRECT + "?"
+        + EaafConstants.PARAM_HTTP_ERROR_CODE + "=" + StringEscapeUtils
+        .escapeHtml4(errorTokenId);    
+    return redirectUrl;
+
+  }
+    
+  @PostConstruct
+  private void initialize() throws EaafException {
+    final String errorConfPath = basicConfig.getBasicConfiguration(CONFIG_PROP_ERROR_HANDLING_CONFIG_PATH);
+    log.info("Initializing error-handling service from configuration: {}", errorConfPath);
+
+    if (StringUtils.isEmpty(errorConfPath)) {
+      log.error("Error: Path to error handling config is not known");
+      throw new EaafException("internal.configuration.00", new Object[]{CONFIG_PROP_ERROR_HANDLING_CONFIG_PATH});
+    }
+
+    try {
+      final byte[] raw = readFromFile(errorConfPath);
+      ObjectMapper mapper = DefaultYamlMapper.getYamlMapper();
+      final TypeFactory typeFactory = mapper.getTypeFactory();
+      final CollectionType javaType = typeFactory.constructCollectionType(List.class, ErrorConfig.class);
+      errorConfigList.addAll(mapper.readValue(raw, javaType));
+
+      log.info("Found #{} configuration-elements for Error Handling", errorConfigList.size());
+
+    } catch (Exception e) {
+      log.error("Error reading Configurations file", e);
+      throw new EaafException("internal.configuration.01",
+          new Object[]{CONFIG_PROP_ERROR_HANDLING_CONFIG_PATH, "Error reading Configurations file"});
+    }
+    
+  }
+  
+  private byte[] readFromFile(final String filePath) throws URISyntaxException, IOException {
+    final String fullFilePath = FileUtils.makeAbsoluteUrl(filePath, basicConfig.getConfigurationRootDirectory());
+    final Resource ressource = resourceLoader.getResource(fullFilePath);
+    final InputStream is = ressource.getInputStream();
+    final byte[] result = IOUtils.toByteArray(is);
+    is.close();
+    return result;
+  }
+  
+  @Builder
+  static class HandleData implements IHandleData {
+        
+    @Getter
+    private String errorIdTokenForRedirect;
+    
+    @Getter
+    private String supportTicket;
+    
+    @Getter
+    private final Throwable throwable;
+    
+    @Getter
+    private String internalErrorCode;
+    
+    @Getter
+    private ActionType actionType;
+
+    @Getter
+    private LogLevel logLevel;
+    
+    public String getPreFormatedErrorMessage() {
+      if (supportTicket != null) {
+        return MessageFormat.format(TICKET_LOG_MSG, internalErrorCode, throwable.getMessage(), supportTicket);        
+        
+      } else {
+        return MessageFormat.format(TECH_LOG_MSG, internalErrorCode, throwable.getMessage());
+
+      }      
+    }      
+  }
+
+}
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultJsonMapper.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultJsonMapper.java
new file mode 100644
index 00000000..8303e860
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultJsonMapper.java
@@ -0,0 +1,106 @@
+package at.gv.egiz.eaaf.core.impl.utils;
+
+import java.io.IOException;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JavaType;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.SerializationFeature;
+import com.fasterxml.jackson.databind.type.TypeFactory;
+import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
+
+import at.gv.egiz.eaaf.core.exceptions.EaafJsonMapperException;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+/**
+ * Holder for Jackson JSON Mapper that sets some security features.
+ *
+ * @author tlenz
+ *
+ */
+@Slf4j
+public final class DefaultJsonMapper {
+
+  @Getter
+  private static final ObjectMapper jsonMapper = new ObjectMapper();
+
+  static {
+    // initialize JSON Mapper
+    jsonMapper.configure(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY, true);
+    jsonMapper.configure(DeserializationFeature.FAIL_ON_TRAILING_TOKENS, true);
+    jsonMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true);
+    jsonMapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
+    jsonMapper.setVisibility(PropertyAccessor.GETTER, Visibility.PUBLIC_ONLY);
+    jsonMapper.setVisibility(PropertyAccessor.IS_GETTER, Visibility.PUBLIC_ONLY);
+
+    jsonMapper.registerModule(new JavaTimeModule());
+    jsonMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
+
+  }
+
+  /**
+   * private constructor for class with only static methods.
+   */
+  private DefaultJsonMapper() {
+
+  }
+
+  /**
+   * Serialize an object to a JSON string.
+   *
+   * @param value the object to serialize
+   * @return a JSON string
+   * @throws JsonProcessingException thrown when an error occurs during
+   *                                 serialization
+   */
+  public static String serialize(final Object value) throws EaafJsonMapperException {
+    try {
+      return jsonMapper.writeValueAsString(value);
+
+    } catch (final JsonProcessingException e) {
+      log.warn("JSON mapping FAILED with error: {}", e.getMessage());
+      throw new EaafJsonMapperException(e.getMessage(), e);
+
+    }
+  }
+
+  /**
+   * Deserialize a JSON string.
+   *
+   * @param value    the JSON to deserialize as {@link String}
+   * @param clazz optional parameter that determines the type of the returned
+   *              object. If not set, an {@link Object} is returned.
+   * @param <T>   Response class type
+   * @return the deserialized JSON string as an object of type {@code clazz} or
+   *         {@link Object}
+   * @throws JsonMappingException if the input JSON structure does not match
+   *                              structure expected for result type
+   */
+  public static <T> Object deserialize(final String value, final Class<T> clazz)
+      throws EaafJsonMapperException {
+    try {
+      if (clazz != null) {
+        if (clazz.isAssignableFrom(TypeReference.class)) {
+          return jsonMapper.readValue(value, clazz);
+        } else {
+          final JavaType javaType = TypeFactory.defaultInstance().constructType(clazz);
+          return jsonMapper.readValue(value, javaType);
+        }
+      } else {
+        return jsonMapper.readValue(value, Object.class);
+      }
+
+    } catch (final IOException e) {
+      log.warn("JSON mapping FAILED with error: {}", e.getMessage());
+      throw new EaafJsonMapperException(e.getMessage(), e);
+
+    }
+
+  }
+}
diff --git a/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultYamlMapper.java b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultYamlMapper.java
new file mode 100644
index 00000000..6e8c4540
--- /dev/null
+++ b/eaaf_core/src/main/java/at/gv/egiz/eaaf/core/impl/utils/DefaultYamlMapper.java
@@ -0,0 +1,38 @@
+package at.gv.egiz.eaaf.core.impl.utils;
+
+import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
+import com.fasterxml.jackson.annotation.PropertyAccessor;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
+import lombok.Getter;
+
+/**
+ * Holder for Jackson JSON Mapper that sets some security features.
+ *
+ * @author tlenz
+ *
+ */
+public final class DefaultYamlMapper {
+
+  @Getter
+  private static final ObjectMapper yamlMapper = new ObjectMapper(new YAMLFactory());
+
+  static {
+    // initialize JSON Mapper
+    yamlMapper.configure(DeserializationFeature.FAIL_ON_READING_DUP_TREE_KEY, true);
+    yamlMapper.configure(DeserializationFeature.FAIL_ON_TRAILING_TOKENS, true);
+    yamlMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, true);
+    yamlMapper.setVisibility(PropertyAccessor.ALL, Visibility.NONE);
+    yamlMapper.setVisibility(PropertyAccessor.GETTER, Visibility.PUBLIC_ONLY);
+    yamlMapper.setVisibility(PropertyAccessor.IS_GETTER, Visibility.PUBLIC_ONLY);
+
+  }
+
+  /**
+   * private constructor for class with only static methods.
+   */
+  private DefaultYamlMapper() {
+
+  }
+}
diff --git a/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyAuthConfig.java b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyAuthConfig.java
new file mode 100644
index 00000000..03f5b759
--- /dev/null
+++ b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyAuthConfig.java
@@ -0,0 +1,100 @@
+package at.gv.egiz.eaaf.core.impl.idp.auth.dummy;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+
+import org.apache.commons.lang3.StringUtils;
+
+import at.gv.egiz.eaaf.core.api.idp.IConfigurationWithSP;
+import at.gv.egiz.eaaf.core.api.idp.IExtendedConfiguration;
+import at.gv.egiz.eaaf.core.api.idp.ISpConfiguration;
+import at.gv.egiz.eaaf.core.exceptions.EaafConfigurationException;
+import at.gv.egiz.eaaf.core.exceptions.EaafException;
+import at.gv.egiz.eaaf.core.impl.idp.conf.AbstractSpringBootConfigurationImpl;
+
+
+public class DummyAuthConfig extends AbstractSpringBootConfigurationImpl 
+    implements IConfigurationWithSP, IExtendedConfiguration {
+
+  private ISpConfiguration spconfig = null;
+
+  private String configPropPrefix = StringUtils.EMPTY;
+
+  private boolean useConfigRootDirFromConfig = false;
+
+  private URI internalConfigRootDirHolder = null;
+
+  public void setSpConfig(final ISpConfiguration spConfig) {
+    this.spconfig = spConfig;
+
+  }
+
+
+
+  @Override
+  public URI getConfigurationRootDirectory() {
+    if (useConfigRootDirFromConfig) {
+      if (internalConfigRootDirHolder == null) {
+        try {
+          internalConfigRootDirHolder = new URI(getBasicConfiguration("core.configRootDir"));
+        } catch (final URISyntaxException e) {
+          e.printStackTrace();
+
+        }
+      }
+      return internalConfigRootDirHolder;
+
+    } else {
+      return new java.io.File(".").toURI();
+
+    }
+  }
+
+  @Override
+  public ISpConfiguration getServiceProviderConfiguration(final String arg0)
+      throws EaafConfigurationException {
+    return spconfig;
+  }
+
+  @SuppressWarnings("unchecked")
+  @Override
+  public <T> T getServiceProviderConfiguration(final String arg0, final Class<T> arg1)
+      throws EaafConfigurationException {
+    return (T) spconfig;
+
+  }
+
+  @Override
+  public String validateIdpUrl(final URL arg0) throws EaafException {
+    return arg0.toString();
+  }
+
+
+  @Override
+  protected String getBackupConfigPath() {
+    return null;
+  }
+
+
+  @Override
+  public String getApplicationSpecificKeyPrefix() {
+    return configPropPrefix;
+
+  }
+
+
+
+  public void setConfigPropPrefix(final String configPropPrefix) {
+    this.configPropPrefix = configPropPrefix;
+  }
+
+
+
+  public void setUseConfigRootDirFromConfig(boolean useConfigRootDirFromConfig) {
+    this.useConfigRootDirFromConfig = useConfigRootDirFromConfig;
+  }
+
+
+
+}
diff --git a/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyPendingRequest.java b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyPendingRequest.java
new file mode 100644
index 00000000..1a18ada2
--- /dev/null
+++ b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/dummy/DummyPendingRequest.java
@@ -0,0 +1,10 @@
+package at.gv.egiz.eaaf.core.impl.idp.auth.dummy;
+
+import at.gv.egiz.eaaf.core.impl.idp.controller.protocols.RequestImpl;
+
+public class DummyPendingRequest extends RequestImpl {
+
+
+  private static final long serialVersionUID = 8136280395622411505L;
+
+}
diff --git a/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/JunitTicketErrorService.java b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/JunitTicketErrorService.java
new file mode 100644
index 00000000..a8ccc54a
--- /dev/null
+++ b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/JunitTicketErrorService.java
@@ -0,0 +1,21 @@
+package at.gv.egiz.eaaf.core.impl.idp.auth.service;
+
+import org.apache.commons.lang3.RandomStringUtils;
+
+import at.gv.egiz.eaaf.core.impl.idp.auth.services.TicketErrorService;
+
+/**
+ * Ticket based error-handling service for jUnit tests.
+ * 
+ * @author tlenz
+ *
+ */
+public class JunitTicketErrorService extends TicketErrorService {
+
+  @Override
+  protected String generateSupportTicket() {
+    return RandomStringUtils.randomAlphabetic(10);
+    
+  }
+
+}
diff --git a/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/TicketErrorServiceTest.java b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/TicketErrorServiceTest.java
new file mode 100644
index 00000000..2c89e49f
--- /dev/null
+++ b/eaaf_core/src/test/java/at/gv/egiz/eaaf/core/impl/idp/auth/service/TicketErrorServiceTest.java
@@ -0,0 +1,272 @@
+package at.gv.egiz.eaaf.core.impl.idp.auth.service;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.when;
+
+import java.util.regex.Pattern;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.MockitoAnnotations;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import at.gv.egiz.eaaf.core.api.gui.ModifyableGuiBuilderConfiguration;
+import at.gv.egiz.eaaf.core.exceptions.EaafException;
+import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
+import at.gv.egiz.eaaf.core.impl.idp.auth.dummy.DummyPendingRequest;
+import at.gv.egiz.eaaf.core.impl.idp.auth.services.IErrorService;
+import at.gv.egiz.eaaf.core.impl.idp.auth.services.IErrorService.LogLevel;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import lombok.val;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration("/SpringTest-authcommon-errorService.xml")
+@TestPropertySource(
+    properties = {"core.error.handling.config=src/test/resources/config/error_conf.yaml"})
+public class TicketErrorServiceTest {
+  @Autowired
+  private IErrorService ticketErrorService;
+
+  @Mock
+  ch.qos.logback.core.AppenderBase<ch.qos.logback.classic.spi.ILoggingEvent> appender;
+  @Captor
+  ArgumentCaptor<ILoggingEvent> logCaptor;
+
+
+  /**
+   * Setup jUnit test.
+   */
+  @Before
+  public void setUp() {
+    MockitoAnnotations.openMocks(this);
+        
+  }
+
+  @Test
+  public void cofigurationLodingAndExternalCodeMapping() {
+    String external = ticketErrorService.getExternalCodeFromInternal("auth.01");
+
+    Assert.assertNotNull(external);
+    Assert.assertEquals(external, "9199");
+  }
+
+  @Test
+  public void coverDifferentExceptions() throws EaafException {
+    
+    val pendingReq = new DummyPendingRequest();
+    pendingReq.setPendingRequestId("324");
+
+    val errorData = ticketErrorService.createHandleData(new Exception("sl20.07.02"), true);
+    val errorData1 = ticketErrorService.createHandleData(
+        new EaafException("sl20.07.02", new Object[]{"dummy"}), false);
+    val errorData2 = ticketErrorService.createHandleData(
+        new TaskExecutionException(pendingReq, "dummy", new EaafException("auth.00", new Object[]{"dummy"})), false);
+    val errorData3 = ticketErrorService.createHandleData(new EaafException("auth.21", null), false);
+    val errorData4 = ticketErrorService.createHandleData(new EaafException("internal.pendingreqid.01", null), false);
+    val errorData5 = ticketErrorService.createHandleData(new EaafException("junit.01", null), false);
+    
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(errorData.getActionType(), IErrorService.ActionType.TICKET);
+    Assert.assertEquals(errorData.getInternalErrorCode(), "internal.00");
+    Assert.assertEquals(errorData.getLogLevel(), IErrorService.LogLevel.ERROR);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData.getInternalErrorCode()), "9199");
+    Assert.assertNotNull(errorData.getErrorIdTokenForRedirect());
+        
+    Assert.assertNotNull(errorData1);
+    Assert.assertEquals(errorData1.getActionType(), IErrorService.ActionType.NO_TICKET);
+    Assert.assertEquals(errorData1.getInternalErrorCode(), "sl20.07.02");
+    Assert.assertEquals(errorData1.getLogLevel(), IErrorService.LogLevel.WARN);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData1.getInternalErrorCode()), "1003");
+    Assert.assertNull(errorData1.getErrorIdTokenForRedirect());
+        
+    Assert.assertNotNull(errorData2);
+    Assert.assertEquals(errorData2.getActionType(), IErrorService.ActionType.TICKET);
+    Assert.assertEquals(errorData2.getInternalErrorCode(), "auth.00");
+    Assert.assertEquals(errorData2.getLogLevel(), IErrorService.LogLevel.ERROR);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData2.getInternalErrorCode()), "9199");
+    
+    Assert.assertNotNull(errorData3);
+    Assert.assertEquals(errorData3.getActionType(), IErrorService.ActionType.NO_TICKET);
+    Assert.assertEquals(errorData3.getInternalErrorCode(), "auth.21");
+    Assert.assertEquals(errorData3.getLogLevel(), IErrorService.LogLevel.INFO);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData3.getInternalErrorCode()), "1005");
+    
+    Assert.assertNotNull(errorData4);
+    Assert.assertEquals(errorData4.getActionType(), IErrorService.ActionType.TICKET);
+    Assert.assertEquals(errorData4.getInternalErrorCode(), "internal.pendingreqid.01");
+    Assert.assertEquals(errorData4.getLogLevel(), IErrorService.LogLevel.WARN);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData4.getInternalErrorCode()), 
+        "9199");
+
+    Assert.assertNotNull(errorData5);
+    Assert.assertEquals(errorData5.getActionType(), IErrorService.ActionType.ERRORPAGE);
+    Assert.assertEquals(errorData5.getInternalErrorCode(), "junit.01");
+    Assert.assertEquals(errorData5.getLogLevel(), IErrorService.LogLevel.ERROR);
+    Assert.assertEquals(ticketErrorService.getExternalCodeFromInternal(errorData5.getInternalErrorCode()), 
+        "junit.01");
+    
+  }
+  
+  @Test
+  public void handleDataTicketNoRedirect() {
+    val logger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("at.gv.egiz.eaaf.core");
+    logger.addAppender(appender);
+    
+    IErrorService.IHandleData errorData = null;
+    try {
+      errorData = ticketErrorService.createHandleData(new EaafException("auth.00", new Object[]{"dummy"}), false);
+    } catch (EaafException e) {
+      e.printStackTrace();
+    }
+
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(errorData.getActionType(), IErrorService.ActionType.TICKET);
+    //    Assert.assertEquals(errorData.getThrowable(), new EaafException("auth.00", new Object[] {"dummy"})); //TODO
+    //     wrong excepiton
+    Assert.assertEquals(errorData.getInternalErrorCode(), "auth.00");
+
+    assertEquals("wrong errorLevel", LogLevel.ERROR, errorData.getLogLevel());
+    assertTrue("ticket", errorData.getPreFormatedErrorMessage().contains("Ticket="));
+    
+  }
+
+  @Test
+  public void handleDataNoTicketNoRedirect() {
+    val logger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("at.gv.egiz.eaaf.core");
+    logger.addAppender(appender);
+
+
+    IErrorService.IHandleData errorData = null;
+    try {
+      errorData = ticketErrorService.createHandleData(
+          new EaafException("internal.pendingreqid.00", new Object[]{"dummy"}), false);
+    } catch (EaafException e) {
+      e.printStackTrace();
+    }
+
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(errorData.getActionType(), IErrorService.ActionType.NO_TICKET);
+    //    Assert.assertEquals(errorData.getThrowable(), new EaafException("auth.00", new Object[] {"dummy"})); //TODO
+    //     wrong excepiton
+    Assert.assertEquals(errorData.getInternalErrorCode(), "internal.pendingreqid.00");
+
+    assertEquals("wrong errorLevel", LogLevel.WARN, errorData.getLogLevel());
+    assertFalse("ticket", errorData.getPreFormatedErrorMessage().contains("Ticket="));
+  }
+
+  @Test
+  public void handleDataTicketRedirect() {
+    val logger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("at.gv.egiz.eaaf.core");
+    logger.addAppender(appender);
+
+    IErrorService.IHandleData errorData = null;
+    try {
+      errorData = ticketErrorService.createHandleData(new EaafException("auth.01", new Object[]{"dummy"}), true);
+    } catch (EaafException e) {
+      e.printStackTrace();
+    }
+
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(IErrorService.ActionType.TICKET, errorData.getActionType());
+    //    Assert.assertEquals(errorData.getThrowable(), new EaafException("auth.00", new Object[] {"dummy"})); //TODO
+    //     wrong excepiton
+    Assert.assertEquals(errorData.getInternalErrorCode(), "auth.01");
+
+    assertEquals("wrong errorLevel", LogLevel.ERROR, errorData.getLogLevel());
+    assertTrue("ticket", errorData.getPreFormatedErrorMessage().contains("Ticket="));
+  }
+
+  @Test
+  public void handleDataNoTicketRedirect() {
+    val logger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("at.gv.egiz.eaaf.core");
+    logger.addAppender(appender);
+
+    IErrorService.IHandleData errorData = null;
+    try {
+      errorData = ticketErrorService
+          .createHandleData(new EaafException("module.binding.14", new Object[]{"dummy"}), false);
+    } catch (EaafException e) {
+      e.printStackTrace();
+    }
+
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(IErrorService.ActionType.NO_TICKET, errorData.getActionType());
+    //    Assert.assertEquals(errorData.getThrowable(), new EaafException("auth.00", new Object[] {"dummy"})); //TODO
+    //     wrong excepiton
+    Assert.assertEquals(errorData.getInternalErrorCode(), "module.binding.14");
+
+    assertEquals("wrong errorLevel", LogLevel.WARN, errorData.getLogLevel());
+    assertFalse("ticket", errorData.getPreFormatedErrorMessage().contains("Ticket="));
+  }
+
+  @Test
+  public void handleDataNoTicketAutoRedirect() {
+    val logger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("at.gv.egiz.eaaf.core");
+    logger.addAppender(appender);
+
+    IErrorService.IHandleData errorData = null;
+    try {
+      errorData = ticketErrorService.createHandleData(new EaafException("auth.21", new Object[]{"dummy"}), true);
+    } catch (EaafException e) {
+      e.printStackTrace();
+    }
+
+    Assert.assertNotNull(errorData);
+    Assert.assertEquals(IErrorService.ActionType.NO_TICKET, errorData.getActionType());
+    //    Assert.assertEquals(errorData.getThrowable(), new EaafException("auth.00", new Object[] {"dummy"})); //TODO
+    //     wrong excepiton
+    Assert.assertEquals(errorData.getInternalErrorCode(), "auth.21");
+
+    assertEquals("wrong errorLevel", LogLevel.INFO, errorData.getLogLevel());
+    assertFalse("ticket", errorData.getPreFormatedErrorMessage().contains("Ticket="));
+  }
+
+  @Test
+  public void testErrorDataDisplay() throws EaafException {
+    
+    IErrorService.IHandleData errorData = null;
+    errorData = ticketErrorService.createHandleData(new EaafException("auth.01", new Object[]{"dummy"}), true);
+    Assert.assertNotNull(errorData);
+
+    val guiBuilder = Mockito.mock(ModifyableGuiBuilderConfiguration.class);
+    ArgumentCaptor<String> valueCapture = ArgumentCaptor.forClass(String.class);
+    doNothing().when(guiBuilder).putCustomParameter(any(), any(), valueCapture.capture());
+
+    ArgumentCaptor<String> valueCapture2 = ArgumentCaptor.forClass(String.class);
+    doNothing().when(guiBuilder).putCustomParameterWithOutEscaption(any(), any(), valueCapture2.capture());
+    
+    ticketErrorService.displayErrorData(guiBuilder, errorData, getMocReq());
+    Assert.assertTrue("Incorrect Ticketvalue",
+        Pattern.matches("[A-Za-z0-9]{10}", valueCapture.getAllValues().get(0)));
+    Assert.assertEquals(
+        "http://iaik.dummy/blub/public/secure/errorRedirect?errorid=" + errorData.getErrorIdTokenForRedirect(),
+        valueCapture2.getAllValues().get(0));
+  }
+
+  private HttpServletRequest getMocReq() {
+    val req = Mockito.mock(HttpServletRequest.class);
+    when(req.getServerPort()).thenReturn(80);
+    when(req.getScheme()).thenReturn("http");
+    when(req.getServerName()).thenReturn("iaik.dummy");
+    when(req.getContextPath()).thenReturn("/blub");
+    return req;
+    
+  }
+  
+}
diff --git a/eaaf_core/src/test/resources/SpringTest-authcommon-errorService.xml b/eaaf_core/src/test/resources/SpringTest-authcommon-errorService.xml
new file mode 100644
index 00000000..35bd9d6f
--- /dev/null
+++ b/eaaf_core/src/test/resources/SpringTest-authcommon-errorService.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xmlns:context="http://www.springframework.org/schema/context"
+  xmlns:tx="http://www.springframework.org/schema/tx"
+  xmlns:aop="http://www.springframework.org/schema/aop"
+  xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
+    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
+    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
+
+  <bean id="DummyAuthConfig"
+        class="at.gv.egiz.eaaf.core.impl.idp.auth.dummy.DummyAuthConfig" />
+
+  <bean id="errorTicketService"
+        class="at.gv.egiz.eaaf.core.impl.idp.auth.service.JunitTicketErrorService">
+  </bean>
+
+  <bean id="junitStatusMessanger"
+        class="at.gv.egiz.eaaf.core.impl.logging.JUnitTestStatusMessenger" />
+
+  <bean id="simplePendingReqStrategy" 
+        class="at.gv.egiz.eaaf.core.impl.utils.SimplePendingRequestIdGenerationStrategy"/>
+
+</beans>
diff --git a/eaaf_core/src/test/resources/config/error_conf.yaml b/eaaf_core/src/test/resources/config/error_conf.yaml
new file mode 100644
index 00000000..0e204e97
--- /dev/null
+++ b/eaaf_core/src/test/resources/config/error_conf.yaml
@@ -0,0 +1,140 @@
+## If no externalCode specified -> 9199 is used
+
+## internal errors with tickets ##
+- action: ticket
+  externalCode: 9199
+  logLevel: ERROR
+  defaultConfig: True
+
+- action: ticket
+  externalCode: 1002
+  logLevel: WARN
+  internalCode:
+    - auth.39
+    - auth.40
+    - auth.41
+    - auth.42
+    - builder.08
+    - builder.11
+    - builder.13
+    - builder.15
+    - builder.16
+    - builder.17
+
+- action: ticket
+  externalCode: 1003
+  logLevel: WARN
+  internalCode:
+    - sl20.07.00
+    - sl20.07.01
+    - sl20.07.04
+    - sl20.07.05
+    - sl20.07.99
+
+- action: ticket
+  externalCode: 1200
+  logLevel: WARN
+  internalCode:
+    - module.binding.16
+    - module.binding.21
+    - module.binding.32
+
+- action: ticket
+  externalCode: 9199
+  logLevel: WARN
+  internalCode:
+    - internal.pendingreqid.01
+    - internal.pendingreqid.03
+    - internal.pendingreqid.04
+    - internal.pendingreqid.05    
+    - internal.token.01
+    - internal.token.04
+    - internal.token.08
+    - internal.token.09
+    - internal.token.10    
+    
+- action: ticket
+  useInternalAsExternal: true
+  logLevel: ERROR
+  internalCode:
+    - config.06    
+
+## internal errors without tickets ##    
+- action: no_ticket
+  externalCode: 1001
+  logLevel: INFO
+  internalCode:
+    - internal.pendingreqid.06
+    - internal.token.11
+
+- action: no_ticket
+  externalCode: 1003
+  logLevel: WARN
+  internalCode:
+    - sl20.07.02
+    - sl20.07.03
+
+- action: no_ticket
+  externalCode: 1005
+  internalCode:
+    - auth.21
+  logLevel: INFO    
+    
+- action: no_ticket
+  externalCode: 1201
+  logLevel: WARN
+  internalCode:
+    - module.binding.17
+    - module.binding.19
+    - module.binding.15
+
+- action: no_ticket
+  externalCode: 1200
+  logLevel: info
+  internalCode:
+    - module.binding.33
+    - module.binding.34
+    - module.binding.35 
+
+- action: no_ticket
+  externalCode: 9199
+  logLevel: WARN
+  internalCode:
+    - module.binding.14
+    - module.binding.25
+    - module.binding.29
+    - module.binding.30
+    - module.eidasauth.06
+    - module.mis.04
+    - module.mis.05
+    - module.mis.06
+    - module.mis.07
+    - module.mis.08
+    - module.mis.vemo.01
+    - module.mis.vemo.02
+    - module.mis.vemo.03
+    - module.mis.vemo.gui.01
+    - auth.eidbind.02
+    - internal.pendingreqid.00
+    - module.binding.04
+    - module.binding.05
+    - shibboleth.00    
+
+- action: no_ticket
+  externalCode: 9199
+  internalCode:
+    - module.binding.31
+    - module.binding.36
+  logLevel: INFO    
+    
+- action: no_ticket
+  useInternalAsExternal: true
+  logLevel: ERROR
+  internalCode:
+    - auth.28
+    - auth.26
+- action: errorpage
+  useInternalAsExternal: true
+  logLevel: ERROR
+  internalCode:
+    - junit.01
\ No newline at end of file