| /* |
| * 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.jk.status; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.net.HttpURLConnection; |
| import java.net.MalformedURLException; |
| import java.net.ProtocolException; |
| import java.net.URL; |
| import java.net.URLConnection; |
| |
| import org.apache.catalina.ant.AbstractCatalinaTask; |
| import org.apache.catalina.util.Base64; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Project; |
| |
| /** |
| * Ant task that implements mod_jk 1.2.20 result message string |
| * |
| * @author Peter Rossbach |
| * @version $Revision:$ |
| * @since mod_jk 1.2.20 |
| */ |
| public abstract class AbstractJkStatusTask extends AbstractCatalinaTask { |
| |
| /** |
| * Execute the requested operation. |
| * |
| * @exception BuildException |
| * if an error occurs |
| */ |
| public void execute() throws BuildException { |
| |
| super.execute(); |
| checkParameter(); |
| StringBuffer sb = createLink(); |
| execute(sb.toString(), null, null, -1); |
| |
| } |
| |
| protected abstract void checkParameter() ; |
| protected abstract StringBuffer createLink() ; |
| |
| /** |
| * Execute the specified command, based on the configured properties. |
| * The input stream will be closed upon completion of this task, whether |
| * it was executed successfully or not. |
| * |
| * @param command Command to be executed |
| * @param istream InputStream to include in an HTTP PUT, if any |
| * @param contentType Content type to specify for the input, if any |
| * @param contentLength Content length to specify for the input, if any |
| * |
| * @exception BuildException if an error occurs |
| */ |
| public void execute(String command, InputStream istream, |
| String contentType, int contentLength) |
| throws BuildException { |
| |
| InputStreamReader reader = null; |
| try { |
| |
| HttpURLConnection hconn = send(command, istream, contentType, contentLength); |
| |
| // Process the response message |
| reader = new InputStreamReader(hconn.getInputStream(), "UTF-8"); |
| String error = null; |
| error = handleResult(reader, error); |
| if (error != null && isFailOnError()) { |
| // exception should be thrown only if failOnError == true |
| // or error line will be logged twice |
| throw new BuildException(error); |
| } |
| } catch (Throwable t) { |
| if (isFailOnError()) { |
| throw new BuildException(t); |
| } else { |
| handleErrorOutput(t.getMessage()); |
| } |
| } finally { |
| closeRedirector(); |
| if (reader != null) { |
| try { |
| reader.close(); |
| } catch (Throwable u) { |
| ; |
| } |
| reader = null; |
| } |
| if (istream != null) { |
| try { |
| istream.close(); |
| } catch (Throwable u) { |
| ; |
| } |
| istream = null; |
| } |
| } |
| |
| } |
| |
| private String handleResult(InputStreamReader reader, String error) throws IOException { |
| StringBuffer buff = new StringBuffer(); |
| int msgPriority = Project.MSG_INFO; |
| boolean first = true; |
| while (true) { |
| int ch = reader.read(); |
| if (ch < 0) { |
| break; |
| } else if ((ch == '\r') || (ch == '\n')) { |
| // in Win \r\n would cause handleOutput() to be called |
| // twice, the second time with an empty string, |
| // producing blank lines |
| if (buff.length() > 0) { |
| String line = buff.toString(); |
| buff.setLength(0); |
| if (first) { |
| if (!line.startsWith("Result: type=OK")) { |
| error = line; |
| msgPriority = Project.MSG_ERR; |
| } |
| first = false; |
| } |
| handleOutput(line, msgPriority); |
| } |
| } else { |
| buff.append((char) ch); |
| } |
| } |
| if (buff.length() > 0) { |
| handleOutput(buff.toString(), msgPriority); |
| } |
| return error; |
| } |
| |
| protected HttpURLConnection send(String command, InputStream istream, String contentType, int contentLength) throws IOException, MalformedURLException, ProtocolException { |
| URLConnection conn; |
| // Create a connection for this command |
| conn = (new URL(url + command)).openConnection(); |
| HttpURLConnection hconn = (HttpURLConnection) conn; |
| |
| // Set up standard connection characteristics |
| hconn.setAllowUserInteraction(false); |
| hconn.setDoInput(true); |
| hconn.setUseCaches(false); |
| if (istream != null) { |
| hconn.setDoOutput(true); |
| hconn.setRequestMethod("PUT"); |
| if (contentType != null) { |
| hconn.setRequestProperty("Content-Type", contentType); |
| } |
| if (contentLength >= 0) { |
| hconn.setRequestProperty("Content-Length", |
| "" + contentLength); |
| } |
| } else { |
| hconn.setDoOutput(false); |
| hconn.setRequestMethod("GET"); |
| } |
| hconn.setRequestProperty("User-Agent", |
| "JkStatus-Ant-Task/1.1"); |
| |
| // Set up an authorization header with our credentials |
| String input = username + ":" + password; |
| String output = new String(Base64.encode(input.getBytes())); |
| hconn.setRequestProperty("Authorization", |
| "Basic " + output); |
| |
| // Establish the connection with the server |
| hconn.connect(); |
| // Send the request data (if any) |
| if (istream != null) { |
| BufferedOutputStream ostream = |
| new BufferedOutputStream(hconn.getOutputStream(), 1024); |
| byte buffer[] = new byte[1024]; |
| while (true) { |
| int n = istream.read(buffer); |
| if (n < 0) { |
| break; |
| } |
| ostream.write(buffer, 0, n); |
| } |
| ostream.flush(); |
| ostream.close(); |
| istream.close(); |
| } |
| return hconn; |
| } |
| |
| |
| } |