init

2024-11-30 19:03:49 +08:00
commit 1e6763c160
3806 changed files with 737676 additions and 0 deletions
--- a/java/org/apache/catalina/ssi/SSIEcho.java
+++ b/java/org/apache/catalina/ssi/SSIEcho.java
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.catalina.ssi;
+
+
+import java.io.PrintWriter;
+/**
+ * Return the result associated with the supplied Server Variable.
+ *
+ * @author Bip Thelin
+ * @author Paul Speed
+ * @author Dan Sandberg
+ * @author David Becker
+ */
+public class SSIEcho implements SSICommand {
+    protected static final String DEFAULT_ENCODING = SSIMediator.ENCODING_ENTITY;
+    protected static final String MISSING_VARIABLE_VALUE = "(none)";
+
+
+    /**
+     * @see SSICommand
+     */
+    @Override
+    public long process(SSIMediator ssiMediator, String commandName,
+            String[] paramNames, String[] paramValues, PrintWriter writer) {
+        String encoding = DEFAULT_ENCODING;
+        String originalValue = null;
+        String errorMessage = ssiMediator.getConfigErrMsg();
+        for (int i = 0; i < paramNames.length; i++) {
+            String paramName = paramNames[i];
+            String paramValue = paramValues[i];
+            if (paramName.equalsIgnoreCase("var")) {
+                originalValue = paramValue;
+            } else if (paramName.equalsIgnoreCase("encoding")) {
+                if (isValidEncoding(paramValue)) {
+                    encoding = paramValue;
+                } else {
+                    ssiMediator.log("#echo--Invalid encoding: " + paramValue);
+                    writer.write(ssiMediator.encode(errorMessage, SSIMediator.ENCODING_ENTITY));
+                }
+            } else {
+                ssiMediator.log("#echo--Invalid attribute: " + paramName);
+                writer.write(ssiMediator.encode(errorMessage, SSIMediator.ENCODING_ENTITY));
+            }
+        }
+        String variableValue = ssiMediator.getVariableValue(originalValue, encoding);
+        if (variableValue == null) {
+            variableValue = MISSING_VARIABLE_VALUE;
+        }
+        writer.write(variableValue);
+        return System.currentTimeMillis();
+    }
+
+
+    protected boolean isValidEncoding(String encoding) {
+        return encoding.equalsIgnoreCase(SSIMediator.ENCODING_URL)
+                || encoding.equalsIgnoreCase(SSIMediator.ENCODING_ENTITY)
+                || encoding.equalsIgnoreCase(SSIMediator.ENCODING_NONE);
+    }
+}