| package org.eclipse.help.internal.server; | |
| /* | |
| * Licensed Materials - Property of IBM, | |
| * WebSphere Studio Workbench | |
| * (c) Copyright IBM Corp 2000 | |
| */ | |
| import java.io.*; | |
| import java.util.*; | |
| import java.util.zip.*; | |
| import java.net.*; | |
| import org.eclipse.help.internal.HelpSystem; | |
| import org.eclipse.help.internal.util.*; | |
| import org.eclipse.help.internal.navigation.HelpNavigationManager; | |
| import org.eclipse.help.internal.util.Resources; | |
| /** | |
| * Handles a request | |
| */ | |
| public class HelpHttpRequest { | |
| private static final int NONE = 0; | |
| private static final int GET = 1; | |
| private static final int POST = 2; | |
| private static final int HEAD = 3; | |
| BufferedReader in; // request input reader | |
| int method; // request method: GET, POST... | |
| String version; // protocol version | |
| HelpURL helpURL; // the help URL | |
| InputStream contentStream; // stream of data to be sent to client | |
| protected int contentLength = 0; | |
| private static byte[] errorStringBytes = | |
| ("<html><body>" + Resources.getString("topicNotAvailable") + "</body></html>") | |
| .getBytes(); | |
| /** | |
| * HelpRequest constructor comment. | |
| */ | |
| public HelpHttpRequest(InputStream inputStream) { | |
| super(); | |
| try { | |
| // Use the client socket to obtain an input stream from it. | |
| InputStream sockInput = inputStream; | |
| // For text input we wrap an InputStreamReader around | |
| // the raw input stream and set ASCII character encoding. | |
| InputStreamReader isr = new InputStreamReader(sockInput, "8859_1"); | |
| // Finally, use a BufferReader wrapper to obtain | |
| // buffering and higher order read methods. | |
| in = new BufferedReader(isr); | |
| } catch (UnsupportedEncodingException e) { | |
| Logger.logDebugMessage("HelpHttpRequest", "encoding error: " + e.getMessage()); | |
| } catch (Exception e) { | |
| Logger.logDebugMessage("HelpHttpRequest", "request failed: " + e.getMessage()); | |
| } | |
| } | |
| public HelpURL getURL() { | |
| return helpURL; | |
| } | |
| public boolean isHTTP() { | |
| return (version != null && version.indexOf("HTTP/") != -1); | |
| } | |
| /** | |
| * Insert the method's description here. | |
| * | |
| * @param req com.ibm.itp.help.server.HelpContentManager | |
| */ | |
| public void processRequest(HelpHttpResponse response) { | |
| readHeader(); | |
| if (method == POST) { | |
| readBody(); | |
| } | |
| if (method == GET || method == POST) { | |
| try { | |
| // Open a stream to the file. | |
| if (helpURL == null) | |
| return; | |
| // Prepare the output stream to the browser | |
| OutputStream out = response.getOutputStream(); | |
| //Info.log(helpURL); | |
| InputStream inputStream = helpURL.openStream(); | |
| if (inputStream == null) { | |
| HelpURL errorURL = | |
| HelpURLFactory.createHelpURL( | |
| "/org.eclipse.help/" + Resources.getString("notopic.html")); | |
| inputStream = errorURL.openStream(); | |
| } | |
| if (inputStream == null) { | |
| out.write(errorStringBytes); | |
| out.flush(); | |
| return; | |
| } | |
| // Send header first | |
| response.sendHeader(); | |
| // Fill the response body | |
| HelpContentManager.fillInResponse(helpURL, inputStream, out); | |
| // Flush all the buffered data before closing the stream | |
| out.flush(); | |
| } catch (IOException e) { | |
| Logger.logDebugMessage( | |
| "HelpHttpRequest", | |
| "processRequest failed: " + e.getMessage()); | |
| } | |
| } else | |
| Logger.logInfo( | |
| Resources.getString("request") | |
| + method | |
| + Resources.getString("url_1") | |
| + helpURL); | |
| } | |
| /** | |
| * Insert the method's description here. | |
| * | |
| */ | |
| protected void readBody() { | |
| try { | |
| if (contentLength > 0) { | |
| char[] inputLine = new char[contentLength]; | |
| in.read(inputLine); // slurp all remaining content | |
| helpURL.addQuery(String.valueOf(inputLine)); | |
| } | |
| } catch (SocketException e) { | |
| Logger.logDebugMessage("HelpHttpRequest", "readBody failed: " + e.getMessage()); | |
| } catch (IOException e) { | |
| Logger.logDebugMessage("HelpHttpRequest", "readBody failed: " + e.getMessage()); | |
| } | |
| } | |
| /** | |
| * Insert the method's description here. | |
| * | |
| */ | |
| protected void readHeader() { | |
| try { | |
| String inputLine = in.readLine(); | |
| if (inputLine == null) | |
| return; | |
| // empty request. Note: do we need to write and end of line in the output stream?? | |
| StringTokenizer st = new StringTokenizer(inputLine); | |
| String methodString = new String(st.nextToken()); | |
| if (methodString.equals("GET")) | |
| this.method = GET; | |
| else | |
| if (methodString.equals("POST")) | |
| this.method = POST; | |
| else | |
| if (methodString.equals("HEAD")) | |
| this.method = HEAD; | |
| this.helpURL = HelpURLFactory.createHelpURL(st.nextToken()); | |
| this.version = st.nextToken(); | |
| while ((inputLine = in.readLine()) != null) { | |
| if (inputLine.length() == 0) | |
| break; | |
| if (inputLine.startsWith("Content-Length")) { | |
| contentLength = | |
| Integer.parseInt(inputLine.substring(inputLine.lastIndexOf(" ") + 1), 10); | |
| } | |
| } | |
| } catch (SocketException e) { | |
| Logger.logDebugMessage( | |
| "HelpHttpRequest", | |
| "readHeader failed: " + e.getMessage()); | |
| } catch (IOException e) { | |
| Logger.logDebugMessage( | |
| "HelpHttpRequest", | |
| "readHeader failed: " + e.getMessage()); | |
| } | |
| } | |
| } |