Allow to display topic without any acls on configs

Author: tchiotludo

src/main/java/org/akhq/models/Topic.java

@@ -130,8 +130,9 @@ public Boolean canDeleteRecords(String clusterId, ConfigRepository configReposit
             return false;
         }
 
-        return configRepository
-            .findByTopic(clusterId, this.getName())
+        List<Config> configs = configRepository.findByTopic(clusterId, this.getName());
+
+        return configs != null && configs
             .stream()
             .filter(config -> config.getName().equals(TopicConfig.CLEANUP_POLICY_CONFIG))
             .anyMatch(config -> config.getValue().contains(TopicConfig.CLEANUP_POLICY_COMPACT));

src/main/java/org/akhq/modules/AbstractKafkaWrapper.java

@@ -1,6 +1,7 @@
 package org.akhq.modules;
 
 
+import com.google.common.collect.ImmutableMap;
 import org.apache.kafka.clients.admin.*;
 import org.apache.kafka.clients.consumer.KafkaConsumer;
 import org.apache.kafka.clients.consumer.OffsetAndMetadata;
@@ -281,13 +282,23 @@ public Map<ConfigResource, Config> describeConfigs(String clusterId, ConfigResou
         );
 
         if (list.size() > 0) {
-            Map<ConfigResource, Config> description =  Logger.call(() -> kafkaModule.getAdminClient(clusterId)
-                    .describeConfigs(names.stream()
-                        .map(s -> new ConfigResource(type, s))
-                        .collect(Collectors.toList())
-                    )
-                    .all()
-                    .get(),
+            Map<ConfigResource, Config> description = Logger.call(
+                () -> {
+                    try {
+                        return kafkaModule.getAdminClient(clusterId)
+                            .describeConfigs(names.stream()
+                                .map(s -> new ConfigResource(type, s))
+                                .collect(Collectors.toList())
+                            )
+                            .all()
+                            .get();
+                    } catch (ExecutionException e) {
+                        if (e.getCause() instanceof SecurityDisabledException || e.getCause() instanceof ClusterAuthorizationException || e.getCause() instanceof TopicAuthorizationException) {
+                            return ImmutableMap.of();
+                        }
+                        throw e;
+                    }
+                },
                 "Describe Topic Config {}",
                 names
             );

src/main/resources/views/blocks/configs.ftl

@@ -22,39 +22,49 @@
                 </tr>
             </thead>
             <tbody>
-            <#list configs as config>
-                <tr>
-                    <td>
-                        <code>${config.getName()}</code>
-                        <#if config.getDescription()?? >
-                        <a class="text-secondary" data-toggle="tooltip" title="${config.getDescription()?replace('<[^>]+>','','r')}">
-                            <i class="fa fa-question-circle" aria-hidden="true"></i>
-                        </a>
-                        </#if>
-                    </td>
-                    <td>
-                        <input type="text"
-                            class="form-control"
-                            autocomplete="off"
-                            name="configs[${config.getName()}]"
-                            value="${config.getValue()!}"
-                            ${(config.isReadOnly())?then("readonly", "")}
-                        />
-                        <small class="humanize form-text text-muted"></small>
-                    </td>
-                    <td>
-                        <span
-                            class="badge badge-${(config.getSource().name() == "DEFAULT_CONFIG")?then("secondary", "warning")}"
-                        >
-                                ${config.getSource().name()}
-                        </span>
+            <#if configs??>
+                <#list configs as config>
+                    <tr>
+                        <td>
+                            <code>${config.getName()}</code>
+                            <#if config.getDescription()?? >
+                                <a class="text-secondary" data-toggle="tooltip" title="${config.getDescription()?replace('<[^>]+>','','r')}">
+                                    <i class="fa fa-question-circle" aria-hidden="true"></i>
+                                </a>
+                            </#if>
+                        </td>
+                        <td>
+                            <input type="text"
+                                   class="form-control"
+                                   autocomplete="off"
+                                   name="configs[${config.getName()}]"
+                                   value="${config.getValue()!}"
+                                    ${(config.isReadOnly())?then("readonly", "")}
+                            />
+                            <small class="humanize form-text text-muted"></small>
+                        </td>
+                        <td>
+                            <span
+                                    class="badge badge-${(config.getSource().name() == "DEFAULT_CONFIG")?then("secondary", "warning")}"
+                            >
+                                    ${config.getSource().name()}
+                            </span>
 
-                        <#if config.isSensitive() >
-                            <i class="fa fa-exclamation-triangle text-danger" aria-hidden="true"></i>
-                        </#if>
+                            <#if config.isSensitive() >
+                                <i class="fa fa-exclamation-triangle text-danger" aria-hidden="true"></i>
+                            </#if>
+                        </td>
+                    </tr>
+                </#list>
+            <#else>
+                <tr>
+                    <td colspan="3">
+                        <div class="alert alert-warning mb-0" role="alert">
+                            No acl for configs for current kafka user.
+                        </div>
                     </td>
                 </tr>
-            </#list>
+            </#if>
             </tbody>
         </table>
     </div>