1 files changed, 586 insertions, 0 deletions
diff --git a/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORequest.java b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORequest.java
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--- /dev/null
+++ b/projects/net.wotonomy.web/src/main/java/net/wotonomy/web/WORequest.java
@@ -0,0 +1,586 @@
+/*
+Wotonomy: OpenStep design patterns for pure Java applications.
+Copyright (C) 2000 Blacksmith, Inc.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, see http://www.gnu.org
+*/
+
+package net.wotonomy.web;
+
+import java.io.InputStream;
+import java.util.Enumeration;
+
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import net.wotonomy.foundation.NSArray;
+import net.wotonomy.foundation.NSData;
+import net.wotonomy.foundation.NSDictionary;
+import net.wotonomy.foundation.NSMutableArray;
+import net.wotonomy.foundation.NSMutableData;
+import net.wotonomy.foundation.NSMutableDictionary;
+
+/**
+* A pure java implementation of WORequest.
+* This implementation is backed by an HttpServletRequest,
+* and thus does not support application-specific subclassing.
+* Future implementations may remove this limitation.
+*
+* @author michael@mpowers.net
+* @author $Author: cgruber $
+* @version $Revision: 905 $
+*/
+public class WORequest extends WOResponse
+{
+    HttpServletRequest request;
+    private WOApplication application;
+    private NSArray languages;
+    private String requestHandlerKey;
+    private String requestHandlerPath;
+    private String pageName;
+    private String contextID;
+    private String senderID;
+    private String defaultFormValueEncoding;
+
+	/**
+	* Parameterless constructor which should not be called.
+	*/
+    public WORequest ()
+    {
+		throw new RuntimeException( 
+			"This constructor is not yet supported." );
+    }
+
+	/**
+	* Standard constructor.  Method and URL are required.
+	* HeaderMap is a map of header names to arrays containing
+	* one or more values.  Data is the content of the request.
+	* UserInfo contains application-defined paramters that get 
+	* passed to all objects involved in dispatching the request.
+	*/
+    public WORequest 
+    	(String aMethod, String aURL, String aProtocolName, 
+	    NSDictionary headerMap, NSData aData, NSDictionary userInfo)
+	{
+		throw new RuntimeException( 
+			"This constructor is not yet supported." );
+	}
+	
+	/**
+	* The only supported constructor for this implementation.
+	* This WORequest will wrap the specified servlet request.
+	*/
+	public WORequest( HttpServletRequest aRequest, WOApplication anApplication )
+	{
+		request = aRequest;
+        application = anApplication;
+        
+        languages = null;
+        senderID = null;
+        pageName = null;
+        contextID = null;
+        defaultFormValueEncoding = "ISO8859_1";
+        requestHandlerKey = WOApplication.directActionRequestHandlerKey();
+        requestHandlerPath = request.getServletPath(); // request.getPathInfo();
+        String remainder = requestHandlerPath;
+        if ( requestHandlerPath == null ) requestHandlerPath = "";
+        if ( requestHandlerPath.length() > 0 )
+        {
+            int i;
+            
+            // get request handler key
+            i = requestHandlerPath.indexOf( "/", 1 );
+            if ( i != -1 )
+            {
+                requestHandlerKey = requestHandlerPath.substring( 1, i );
+                requestHandlerPath = requestHandlerPath.substring( i );
+            }
+            
+            Enumeration e = requestHandlerPathArray().objectEnumerator();
+            // skipping session ID for now
+            if ( e.hasMoreElements() )
+            {
+                pageName = e.nextElement().toString();
+            }
+            if ( e.hasMoreElements() )
+            {
+                contextID = e.nextElement().toString();
+            }
+            if ( e.hasMoreElements() )
+            {
+                senderID = e.nextElement().toString();
+            }
+        }
+	}
+
+    /**
+    * Returns the HTTP method of the request: "GET" or "POST", 
+    * or possibly "PUT".
+    */
+    public String method ()
+    {
+    	return request.getMethod();
+    }
+    
+    /**
+    * Returns the Uniform Resource Identifier, which is the part
+    * of the request URL after the protocol name (after the port
+    * number) and before the query parameters (before the question mark).
+    */
+    public String uri ()
+    {
+    	return request.getRequestURI();
+    }
+
+	/**
+	* Returns the name of the protocol (presumably HTTP) and the
+	* version used by the client as sent in the request headers.
+	*/    
+    public String httpVersion ()
+    {
+    	return request.getProtocol();
+    }
+    
+    /**
+    * Returns an array of the header names in this request
+    * in no particular order.
+    */
+    public NSArray headerKeys ()
+    {
+    	return arrayFromEnumeration( request.getHeaderNames() );	
+    }
+    
+    /**
+    * Returns an array of the header values for the specified key
+    * in no particular order.
+    */
+    public NSArray headersForKey (String aString)
+    {
+    	return arrayFromEnumeration( request.getHeaders( aString ) );
+    }
+    
+    /**
+    * Returns one value for the specified header key.
+    * Provided as a convenience since most headers have
+    * only one value.  Returns null if not found.
+    */
+    public String headerForKey (String aKey)
+    {
+    	return request.getHeader( aKey );
+    }
+    
+    /**
+    * Returns the content of the request, or null if no content.
+    * The type of the content is determined by the "content-type" header.
+    * On error, null is returned.
+    */
+    public NSData content ()
+    {
+    	//TODO: This is broken!
+    	NSMutableData data = new NSMutableData();
+    	try
+	    {
+	    	byte[] buf = new byte[ request.getContentLength() ];
+		    InputStream is = request.getInputStream();
+			
+			// this is so very not efficient
+			int len;
+		    while ( ( len = is.read( buf ) ) > -1 )
+		    {
+			    // copies data twice...
+		    	data.appendData( new NSData( buf, 0, len ) ); 
+		    }
+		}
+		catch ( Exception exc )
+		{
+			return null;
+		}
+		return data;
+    }
+    
+    /**
+    * Returns the application-specific userInfo dictionary.
+    * This implementation returns the servlet attribute map.
+    */
+    public NSDictionary userInfo ()
+    {
+    	//TODO: Test this logic.
+    	Object key, value;
+    	NSMutableDictionary info = new NSMutableDictionary();
+	    java.util.Enumeration e = request.getAttributeNames();
+	    while ( e.hasMoreElements() )
+	    {
+	    	key = e.nextElement();
+		    value = request.getAttribute( e.nextElement().toString() );
+		    if ( value != null )
+		    {
+		    	info.setObjectForKey( value, key ); 
+		    }
+	    }
+	    return info;
+    }
+    
+    /**
+    * Returns the items in the request handler path parsed
+    * by the "/" delimiter and put into an array.
+    */
+    public NSArray requestHandlerPathArray ()
+    {
+    	return NSArray.componentsSeparatedByString( requestHandlerPath(), "/" );
+    }
+    
+    /**
+    * Returns the client's preferred languages in decreasing 
+    * order of preference.  The strings are returned in java
+    * Locale format, meaning dashes (-) are converted to 
+    * underbars (_): see java.util.Locale.toString().
+    */
+    public NSArray browserLanguages ()
+    {
+        if ( languages == null )
+        {
+        	languages = arrayFromEnumeration( request.getLocales() );
+        }
+        return languages;
+    }
+    
+    /**
+    * Returns the portion of the URI specifying the engine within which
+    * this web application is running.  This is important for generating
+    * URLs to be used in the content of the response.
+    */
+    public String adaptorPrefix ()
+    {
+    	//TODO: Test this logic.
+    	String name = request.getServletPath();
+        return name;
+        
+//	    String uri = request.getRequestURI();
+//	    int end = uri.indexOf( request.getPathInfo() );
+//    	return uri.substring( request.getContextPath().length(), end );
+    }
+    
+    /**
+    * Returns the application name as specified in the request URI.
+    * Note that wotonomy web applications do not typically have a .woa
+    * extension, but the extension will be included for those that do.
+    */
+    public String applicationName ()
+    {
+        return request.getContextPath();
+    }
+    
+    /**
+    * Returns the id of the application instance that is needed to 
+    * service this request.  -1 indicates that the request is not 
+    * specific to a particular instance of the application.
+    * This implementation currently returns -1.
+    */
+    public int applicationNumber ()
+    {
+		return -1;
+    }
+    
+    /**
+    * Returns the portion of the URI that specifies which request handler
+    * should handle the request.  
+    */
+    public String requestHandlerKey ()
+    {
+        return requestHandlerKey;
+   }
+    
+    /**
+    * Returns the portion of the URI that specifies path information 
+    * for the request, not including the query string.
+    */
+    public String requestHandlerPath ()
+    {
+        return requestHandlerPath;
+    }
+    
+    /**
+    * Returns the unique identifier for the sessions associated with 
+    * this request, or null if no session is found.
+    */
+    public String sessionID ()
+    {
+    	HttpSession session = request.getSession( false );
+	    if ( session == null ) return null;
+	    return session.getId();
+    }
+    
+    /**
+    * Returns an array containing all the form keys in the request.
+    */
+    public NSArray formValueKeys ()
+    {
+    	return arrayFromEnumeration( request.getParameterNames() );
+    }
+    
+    /**
+    * Returns an array of the values for the specified key in
+    * no particular order.
+    */
+    public NSArray formValuesForKey (String aKey)
+    {
+    	NSMutableArray result = new NSMutableArray();
+    	String[] values = request.getParameterValues( aKey );
+        if ( values != null )
+        {
+            for ( int i = 0; i < values.length; i++ )
+            {
+                result.addObject( values[i] );
+            }
+        }
+	    return result;
+    }
+    
+    /**
+    * Returns one value for the specified key.
+    * Provided as a convenience since most keys have
+    * only one value.  Returns null if not found.
+    */
+    public Object formValueForKey (String aKey)
+    {
+    	return request.getParameter( aKey );
+    }
+
+    /**
+    * Returns the value for the specified key, as a String.
+    */
+    public String stringFormValueForKey(String key) {
+        Object x = formValueForKey(key);
+        if (x != null)
+            return x.toString();
+        return null;
+    }
+
+    /**
+    * Returns a dictionary containing all the key-value 
+    * mappings in the request.
+    */
+    public NSDictionary formValues ()
+    {
+    	NSMutableDictionary result = new NSMutableDictionary ();
+    	java.util.Enumeration e = request.getParameterNames();
+	    String key;
+	    while ( e.hasMoreElements() )
+	    {
+	    	key = e.nextElement().toString();
+	    	result.setObjectForKey( formValuesForKey( key ), key );
+	    }
+	    return result;
+    }
+    
+    /**
+    * Returns whether the request is from a java-based client component.
+    * This implementation returns false.
+    */
+    public boolean isFromClientComponent ()
+    {
+    	return false;
+    }
+    
+    /**
+    * Returns an array of cookie values for the specified key in
+    * no particular order.
+    */
+    public NSArray cookieValuesForKey (String aKey)
+    {
+    	// TODO: Test this logic.
+    	NSMutableArray result = new NSMutableArray();
+    	Cookie[] cookies = request.getCookies();
+	    if ( cookies == null ) return result;
+	    
+	    for ( int i = 0; i < cookies.length; i++ )
+	    {
+	    	if ( cookies[i].getName().equals( aKey ) )
+		    {
+		    	result.addObject( cookies[i].getValue() );
+		    } 
+	    }
+	    
+	    return result;
+    }
+    
+    /**
+    * Returns one value for the specified cookie key.
+    * Provided as a convenience since most cookies have
+    * only one value.  Returns null if not found.
+    */
+    public String cookieValueForKey (String aKey)
+    {
+    	// TODO: Test this logic.
+    	Cookie[] cookies = request.getCookies();
+	    if ( cookies == null ) return null;
+	    
+	    for ( int i = 0; i < cookies.length; i++ )
+	    {
+	    	if ( cookies[i].getName().equals( aKey ) )
+		    {
+		    	return cookies[i].getValue();
+		    } 
+	    }
+	    
+	    return null;
+    }
+    
+    /**
+    * Returns a dictionary of cookie key-value mappings. 
+    */
+    public NSDictionary cookieValues ()
+    {
+    	// TODO: Test this logic.
+    	NSMutableDictionary result = new NSMutableDictionary();
+    	Cookie[] cookies = request.getCookies();
+	    if ( cookies == null ) return result;
+	    
+	    NSMutableArray value;
+	    for ( int i = 0; i < cookies.length; i++ )
+	    {
+	    	value = (NSMutableArray) result.objectForKey( 
+		    	cookies[i].getName() );
+		    if ( value == null ) 
+		    {
+		    	value = new NSMutableArray();
+                result.setObjectForKey( 
+					cookies[i].getValue(), cookies[i].getName() );
+			}
+		    value.addObject( cookies[i].getValue() );
+	    }
+	    
+	    return result;
+    }
+
+    /**
+    * Sets the default character encoding.
+    */
+    public void setDefaultFormValueEncoding (String encoding)
+    {
+    	defaultFormValueEncoding = encoding;
+    }
+    
+    /**
+    * Returns the default form value encoding ("ISO8859_1").
+    */
+    public String defaultFormValueEncoding ()
+    {
+    	return defaultFormValueEncoding;
+    }
+    
+    /**
+    * Sets whether the appropriate encoding scheme for decoding
+    * the form values will be automatically determined.
+    */
+    public void setFormValueEncodingDetectionEnabled (boolean enabled)
+    {
+    	throw new RuntimeException( "Not yet implemented." );
+    }
+    
+    /**
+    * Gets whether the appropriate encoding scheme for decoding
+    * the form values is currently automatically determined.
+    */
+    public boolean isFormValueEncodingDetectionEnabled ()
+    {
+    	throw new RuntimeException( "Not yet implemented." );
+    }
+    
+    /**
+    * Gets the current method used for decoding form values.
+    */
+    public int formValueEncoding ()
+    {
+    	throw new RuntimeException( "Not yet implemented." );
+    }
+    
+    /**
+    * Returns the host name of the server that is the target of this request.
+    * NOTE: This method is not published in the WORequest specification.
+    */
+    String applicationHost ()
+    {
+        // FIXME: this should call WOApplication.hostname();
+        return request.getServerName();
+    }
+    
+    /**
+    * Returns the port of the server that is the target of this request.
+    * NOTE: This method is not published in the WORequest specification.
+    */
+    int port()
+    {
+        // FIXME: this should call WOApplication.port();
+        return request.getServerPort();
+    }
+    
+    /**
+    * Returns the backing HttpServletRequest.
+    */
+    HttpServletRequest servletRequest ()
+    {
+    	return request;
+    }
+    
+    /**
+    * Returns the application that was the target of this request.
+    * This method is not published in the WORequest specification.
+    */
+    WOApplication application ()
+    {
+    	return application;
+    }
+    
+    /**
+    * This method is not published in the WORequest specification.
+    * This sender id from the URI, which is the id of the element
+    * that generated this request.
+    */
+    String senderID ()
+    {
+    	return senderID;
+    }
+    
+    /**
+    * This method is not published in the WORequest specification.
+    * This returns the context id from the URI.
+    */
+    String contextID ()
+    {
+    	return contextID;
+    }
+    
+    /**
+    * This method is not published in the WORequest specification.
+    */
+    String pageName ()
+    {
+    	return pageName;
+    }
+    
+    /**
+    * Convenience method to populate an NSArray from an Enumeration.
+    */
+    private static NSArray arrayFromEnumeration( java.util.Enumeration e )
+    {
+    	NSMutableArray result = new NSMutableArray();
+    	while ( e.hasMoreElements() )
+	    {
+	    	result.addObject( e.nextElement() );
+	    }
+	    return result;
+    }
+}