Mercurial > hg > digilib-old

changeset 246:aaf6eace011d

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Servlet version 1.19b4 - bug fixes - new stuff in DocumentBean
author robcast
date Wed, 04 Aug 2004 20:42:48 +0200 (2004-08-04)
parents e93a1d525df2
children ffea3e39d9ee
files servlet/src/digilib/io/DocuDirCache.java servlet/src/digilib/io/DocuDirectory.java servlet/src/digilib/io/FileOps.java servlet/src/digilib/io/XMLMetaLoader.java servlet/src/digilib/servlet/DigilibRequest.java servlet/src/digilib/servlet/DocumentBean.java servlet/src/digilib/servlet/Scaler.java servlet/src/digilib/servlet/ServletOps.java servlet/src/digilib/servlet/Texter.java
diffstat 9 files changed, 340 insertions(+), 210 deletions(-) [+]
line wrap: on
line diff
--- a/servlet/src/digilib/io/DocuDirCache.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/io/DocuDirCache.java	Wed Aug 04 20:42:48 2004 +0200
@@ -160,6 +160,8 @@
 	 *            digilib pathname
 	 * @param in
 	 *            file index
+	 * @param fc
+	 * 			  file class
 	 * @return
 	 */
 	public DocuDirent getFile(String fn, int in, int fc) {
@@ -187,7 +189,7 @@
 				 */
 				// get the parent directory string (like we store it in the
 				// cache)
-				String d = fn.substring(0, fn.lastIndexOf("/"));
+				String d = FileOps.parent(fn);
 				// try it in the cache
 				dd = (DocuDirectory) map.get(d);
 				if (dd == null) {
--- a/servlet/src/digilib/io/DocuDirectory.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/io/DocuDirectory.java	Wed Aug 04 20:42:48 2004 +0200
@@ -365,6 +365,10 @@
 				return -1;
 			}
 		}
+		// empty directory?
+		if (list[fc] == null) {
+			return -1;
+		}
 		// linear search -> worst performance
 		int n = list[fc].size();
 		for (int i = 0; i < n; i++) {
--- a/servlet/src/digilib/io/FileOps.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/io/FileOps.java	Wed Aug 04 20:42:48 2004 +0200
@@ -178,6 +178,24 @@
 		return "";
 	}
 
+	/**
+	 * Extract the parent directory of a (digilib) path name.
+	 * 
+	 * Returns the parent directory of a path name. The parent is the part before
+	 * the last slash in the path name. If the path name has no slash the empty
+	 * string is returned.
+	 * 
+	 * @param fn
+	 * @return
+	 */
+	public static String parent(String fn) {
+		int i = fn.lastIndexOf('/');
+		if (i > 0) {
+			return fn.substring(0, i);
+		}
+		return "";
+	}
+
 	/** Normalize a path name.
 	 * 
 	 * Removes leading and trailing slashes. Returns null if there is other
--- a/servlet/src/digilib/io/XMLMetaLoader.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/io/XMLMetaLoader.java	Wed Aug 04 20:42:48 2004 +0200
@@ -88,7 +88,7 @@
 			StringBuffer s = new StringBuffer();
 			for (int i = 0; i < attrs.getLength(); i++) {
 				String key = getName(attrs.getLocalName(i), attrs.getQName(i));
-				s.append(" "+key+"=\""+attrs.getValue(i));
+				s.append(" "+key+"=\""+attrs.getValue(i)+"\"");
 			}
 			return s.toString();
 		}
--- a/servlet/src/digilib/servlet/DigilibRequest.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/servlet/DigilibRequest.java	Wed Aug 04 20:42:48 2004 +0200
@@ -4,22 +4,22 @@
  * lightweight class carrying all parameters for a request to digilib
  *
 
-  Digital Image Library servlet components
+ Digital Image Library servlet components
 
-  Copyright (C) 2001, 2002 Robert Casties (robcast@mail.berlios.de),
-                           Christian Luginbuehl
+ Copyright (C) 2001, 2002 Robert Casties (robcast@mail.berlios.de),
+ Christian Luginbuehl
 
-  This program is free software; you can redistribute  it and/or modify it
-  under  the terms of  the GNU General  Public License as published by the
-  Free Software Foundation;  either version 2 of the  License, or (at your
-  option) any later version.
-   
-  Please read license.txt for the full details. A copy of the GPL
-  may be found at http://www.gnu.org/copyleft/lgpl.html
+ This program is free software; you can redistribute  it and/or modify it
+ under  the terms of  the GNU General  Public License as published by the
+ Free Software Foundation;  either version 2 of the  License, or (at your
+ option) any later version.
+ 
+ Please read license.txt for the full details. A copy of the GPL
+ may be found at http://www.gnu.org/copyleft/lgpl.html
 
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
  * Created on 27. August 2002, 19:43
  */
@@ -51,25 +51,35 @@
 import digilib.image.DocuImage;
 import digilib.io.FileOps;
 
-/** Class holding the parameters of a digilib user request.
- * The parameters are mostly named like the servlet parameters:<br>
- * request_path: url of the page/document.<br> fn: url of the page/document.
- * <br> pn: page number.<br> dw: width of result window in pixels.<br> dh:
- * height of result window in pixels.<br> wx: left edge of image area (float
- * from 0 to 1).<br> wy: top edge of image area (float from 0 to 1).<br> ww:
- * width of image area(float from 0 to 1).<br> wh: height of image area(float
- * from 0 to 1).<br> ws: scale factor.<br> mo: special options like 'fit' for
- * gifs.<br> mk: list of marks.<br> pt: total number of pages (generated by
- * sevlet).<br> baseURL: base URL (from http:// to below /servlet).
+/**
+ * Class holding the parameters of a digilib user request. The parameters are
+ * mostly named like the servlet parameters: <br>
+ * request_path: url of the page/document. <br>
+ * fn: url of the page/document. <br>
+ * pn: page number. <br>
+ * dw: width of result window in pixels. <br>
+ * dh: height of result window in pixels. <br>
+ * wx: left edge of image area (float from 0 to 1). <br>
+ * wy: top edge of image area (float from 0 to 1). <br>
+ * ww: width of image area(float from 0 to 1). <br>
+ * wh: height of image area(float from 0 to 1). <br>
+ * ws: scale factor. <br>
+ * mo: special options like 'fit' for gifs. <br>
+ * mk: list of marks. <br>
+ * pt: total number of pages (generated by sevlet). <br>
+ * baseURL: base URL (from http:// to below /servlet).
  * 
  * @author casties
- *
+ *  
  */
 public class DigilibRequest extends ParameterMap {
 
 	private Logger logger = Logger.getLogger(this.getClass());
+
 	private boolean boolRDF = false; // use RDF Parameters
+
 	private DocuImage image; // internal DocuImage instance for this request
+
 	private ServletRequest servletRequest; // internal ServletRequest
 
 	/** Creates a new instance of DigilibRequest and sets default values. */
@@ -78,8 +88,8 @@
 		super(30);
 
 		/*
-		 * Definition of parameters and default values.
-		 * Parameter of type 's' are for the servlet. 
+		 * Definition of parameters and default values. Parameter of type 's'
+		 * are for the servlet.
 		 */
 
 		// url of the page/document (second part)
@@ -138,7 +148,7 @@
 		 * Parameter of type 'c' are for the clients internal use
 		 */
 
-		//	display	level of digilib (0 = just image, 1 = one HTML page
+		//	display level of digilib (0 = just image, 1 = one HTML page
 		//        2 = in frameset, 3 = XUL-'frameset'
 		//        4 = XUL-Sidebar )
 		newParameter("lv", new Integer(2), null, 'c');
@@ -149,9 +159,9 @@
 
 	}
 
-	/** Creates a new instance of DigilibRequest with parameters from a
-	 * ServletRequest.
-	 * All undefined parameters are set to default values.
+	/**
+	 * Creates a new instance of DigilibRequest with parameters from a
+	 * ServletRequest. All undefined parameters are set to default values.
 	 * 
 	 * @param request
 	 */
@@ -160,7 +170,8 @@
 		setWithRequest(request);
 	}
 
-	/** Populate the request object with data from a ServletRequest.
+	/**
+	 * Populate the request object with data from a ServletRequest.
 	 * 
 	 * 
 	 * @param request
@@ -183,9 +194,11 @@
 		setBaseURL((HttpServletRequest) request);
 	}
 
-	/** Populate a request from a string in the old "++++" parameter form.
-	 *
-	 * @param queryString String with paramters in the old "+++" form.
+	/**
+	 * Populate a request from a string in the old "++++" parameter form.
+	 * 
+	 * @param queryString
+	 *            String with paramters in the old "+++" form.
 	 */
 	public void setWithOldString(String queryString) {
 		if (queryString == null) {
@@ -286,9 +299,10 @@
 		}
 	}
 
-	/** Return the request parameters as a String in the parameter form
+	/**
+	 * Return the request parameters as a String in the parameter form
 	 * 'fn=/icons&amp;pn=1'. Empty (undefined) fields are not included.
-	 *
+	 * 
 	 * @return String of request parameters in parameter form.
 	 */
 	public String getAsString() {
@@ -298,12 +312,12 @@
 			Parameter p = (Parameter) i.next();
 			String name = p.getName();
 			/*
-			 *  handling special cases
+			 * handling special cases
 			 */
-			// request_path adds to fn 
+			// request_path adds to fn
 			if (name.equals("fn")) {
-				s.append(
-					"&fn=" + getAsString("request.path") + getAsString("fn"));
+				s.append("&fn=" + getAsString("request.path")
+						+ getAsString("fn"));
 				continue;
 			}
 			/*
@@ -320,8 +334,9 @@
 		return s.toString();
 	}
 
-	/** Returns request parameters in old '++++' form.
-	 *
+	/**
+	 * Returns request parameters in old '++++' form.
+	 * 
 	 * @return String with parameters in old '++++' form.
 	 */
 	public String getAsOldString() {
@@ -339,17 +354,17 @@
 		return s.toString();
 	}
 
-	/** Set request parameters from javax.servlet.ServletRequest. Uses the Requests
-	 * getParameter methods for 'fn=foo' style parameters.
-	 *
-	 * @param request ServletRequest to get parameters from.
+	/**
+	 * Set request parameters from javax.servlet.ServletRequest. Uses the
+	 * Requests getParameter methods for 'fn=foo' style parameters.
+	 * 
+	 * @param request
+	 *            ServletRequest to get parameters from.
 	 */
 	public void setWithParamRequest(ServletRequest request) {
 		setValue("servlet.request", request);
 		// go through all request parameters
-		for (Enumeration i = request.getParameterNames();
-			i.hasMoreElements();
-			) {
+		for (Enumeration i = request.getParameterNames(); i.hasMoreElements();) {
 			String name = (String) i.nextElement();
 			// is this a known parameter?
 			if (this.containsKey(name)) {
@@ -369,8 +384,8 @@
 	}
 
 	/**
-	 *
-	 *
+	 * 
+	 *  
 	 */
 	public void setWithRDF(ServletRequest request) {
 		String strRDF;
@@ -403,8 +418,8 @@
 			StringReader sr = new StringReader(strRDF);
 			model.read(sr, "");
 			// get Property fn -> digilib
-			Property p =
-				model.getProperty("http://echo.unibe.ch/digilib/rdf#", "fn");
+			Property p = model.getProperty("http://echo.unibe.ch/digilib/rdf#",
+					"fn");
 			if (p != null) {
 				// get URI
 				String strURI = null;
@@ -412,8 +427,8 @@
 				if (i.hasNext()) {
 					strURI = "urn:echo:" + i.next().toString();
 					Resource r = model.getResource(strURI);
-					Selector selector =
-						new SelectorImpl(r, null, (RDFNode) null);
+					Selector selector = new SelectorImpl(r, null,
+							(RDFNode) null);
 					// list the statements in the graph
 					StmtIterator iter = model.listStatements(selector);
 					// add predicate and object to Hashtable
@@ -434,10 +449,8 @@
 							// object is a literal
 							strValue = object.toString();
 						}
-						String strDigilibKey =
-							strKey.substring(
-								strKey.indexOf("#") + 1,
-								strKey.length());
+						String strDigilibKey = strKey.substring(strKey
+								.indexOf("#") + 1, strKey.length());
 						hashParams.put(strDigilibKey, strValue);
 					}
 				}
@@ -448,22 +461,29 @@
 		return hashParams;
 	}
 
-	/** Test if option string <code>opt</code> is set.
-	 * Checks if the substring <code>opt</code> is contained in the options
-	 * string <code>param</code>.
+	/**
+	 * Test if option string <code>opt</code> is set. Checks if the substring
+	 * <code>opt</code> is contained in the options string <code>param</code>.
 	 * 
-	 * @param opt Option string to be tested.
+	 * @param opt
+	 *            Option string to be tested.
 	 * @return boolean
 	 */
 	public boolean hasOption(String param, String opt) {
 		String s = getAsString(param);
-		if ((s != null) && (s.indexOf(opt) >= 0)) {
-			return true;
+		if (s != null) {
+			StringTokenizer i = new StringTokenizer(s, ",");
+			while (i.hasMoreTokens()) {
+				if (i.nextToken().equals(opt)) {
+					return true;
+				}
+			}
 		}
 		return false;
 	}
 
-	/** The image file path to be accessed.
+	/**
+	 * The image file path to be accessed.
 	 * 
 	 * The mage file path is assembled from the servlets RequestPath and
 	 * Parameter fn and normalized.
@@ -478,8 +498,12 @@
 
 	/* Property getter and setter */
 
-	/** Set the requests base URL parameter from a javax.sevlet.http.HttpServletRequest.
-	 * @param request HttpServletRequest to set the base URL.
+	/**
+	 * Set the requests base URL parameter from a
+	 * javax.sevlet.http.HttpServletRequest.
+	 * 
+	 * @param request
+	 *            HttpServletRequest to set the base URL.
 	 */
 	public void setBaseURL(javax.servlet.http.HttpServletRequest request) {
 		String baseURL = null;
@@ -490,9 +514,7 @@
 			baseURL = s.substring(0, eop);
 		} else {
 			// fall back
-			baseURL =
-				"http://"
-					+ request.getServerName()
+			baseURL = "http://" + request.getServerName()
 					+ "/docuserver/digitallibrary";
 		}
 		setValue("base.url", baseURL);
@@ -500,6 +522,7 @@
 
 	/**
 	 * Returns the image.
+	 * 
 	 * @return DocuImage
 	 */
 	public DocuImage getImage() {
@@ -508,7 +531,9 @@
 
 	/**
 	 * Sets the image.
-	 * @param image The image to set
+	 * 
+	 * @param image
+	 *            The image to set
 	 */
 	public void setImage(DocuImage image) {
 		this.image = image;
@@ -526,4 +551,4 @@
 		return servletRequest;
 	}
 
-}
+}
\ No newline at end of file
--- a/servlet/src/digilib/servlet/DocumentBean.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/servlet/DocumentBean.java	Wed Aug 04 20:42:48 2004 +0200
@@ -1,22 +1,23 @@
-/* DocumentBean -- Access control bean for JSP
-
-  Digital Image Library servlet components
-
-  Copyright (C) 2001, 2002, 2003 Robert Casties (robcast@mail.berlios.de)
-
-  This program is free software; you can redistribute  it and/or modify it
-  under  the terms of  the GNU General  Public License as published by the
-  Free Software Foundation;  either version 2 of the  License, or (at your
-  option) any later version.
-   
-  Please read license.txt for the full details. A copy of the GPL
-  may be found at http://www.gnu.org/copyleft/lgpl.html
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-*/
+/*
+ * DocumentBean -- Access control bean for JSP
+ * 
+ * Digital Image Library servlet components
+ * 
+ * Copyright (C) 2001, 2002, 2003 Robert Casties (robcast@mail.berlios.de)
+ * 
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
+ * 
+ * Please read license.txt for the full details. A copy of the GPL may be found
+ * at http://www.gnu.org/copyleft/lgpl.html
+ * 
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ *  
+ */
 
 package digilib.servlet;
 
@@ -39,18 +40,25 @@
 
 	// general logger
 	Logger logger = Logger.getLogger("digilib.docubean");
+
 	// AuthOps object to check authorization
 	private AuthOps authOp;
+
 	// use authorization database
 	private boolean useAuthentication = true;
+
 	// path to add for authenticated access
 	private String authURLPath = "";
+
 	// DocuDirCache
 	private DocuDirCache dirCache = null;
 
 	// DigilibConfiguration object
 	private DigilibConfiguration dlConfig;
 
+	// DigilibRequest object
+	private DigilibRequest dlRequest = null;
+
 	/**
 	 * Constructor for DocumentBean.
 	 */
@@ -71,9 +79,8 @@
 		// get our ServletContext
 		ServletContext context = conf.getServletContext();
 		// see if there is a Configuration instance
-		dlConfig =
-			(DigilibConfiguration) context.getAttribute(
-				"digilib.servlet.configuration");
+		dlConfig = (DigilibConfiguration) context
+				.getAttribute("digilib.servlet.configuration");
 		if (dlConfig == null) {
 			// create new Configuration
 			try {
@@ -88,37 +95,37 @@
 		dirCache = (DocuDirCache) dlConfig.getValue("servlet.dir.cache");
 
 		/*
-		 *  authentication
+		 * authentication
 		 */
 		useAuthentication = dlConfig.getAsBoolean("use-authorization");
 		authOp = (AuthOps) dlConfig.getValue("servlet.auth.op");
 		authURLPath = dlConfig.getAsString("auth-url-path");
 		if (useAuthentication && (authOp == null)) {
-			throw new ServletException("ERROR: use-authorization configured but no AuthOp!");
+			throw new ServletException(
+					"ERROR: use-authorization configured but no AuthOp!");
 		}
 	}
 
 	/**
-	 *  check if the request must be authorized to access filepath
+	 * check if the request must be authorized to access filepath
 	 */
 	public boolean isAuthRequired(DigilibRequest request)
-		throws AuthOpException {
+			throws AuthOpException {
 		logger.debug("isAuthRequired");
 		return useAuthentication ? authOp.isAuthRequired(request) : false;
 	}
 
 	/**
-	 *  check if the request is allowed to access filepath
+	 * check if the request is allowed to access filepath
 	 */
-	public boolean isAuthorized(DigilibRequest request)
-		throws AuthOpException {
+	public boolean isAuthorized(DigilibRequest request) throws AuthOpException {
 		logger.debug("isAuthorized");
 		return useAuthentication ? authOp.isAuthorized(request) : true;
 	}
 
 	/**
-	 *  return a list of authorization roles needed for request
-	 *  to access the specified path
+	 * return a list of authorization roles needed for request to access the
+	 * specified path
 	 */
 	public List rolesForPath(DigilibRequest request) throws AuthOpException {
 		logger.debug("rolesForPath");
@@ -130,46 +137,48 @@
 	 */
 	public boolean isRoleAuthorized(List roles, DigilibRequest request) {
 		logger.debug("isRoleAuthorized");
-		return useAuthentication
-			? authOp.isRoleAuthorized(roles, request)
-			: true;
+		return useAuthentication ? authOp.isRoleAuthorized(roles, request)
+				: true;
 	}
 
 	/**
 	 * check for authenticated access and redirect if necessary
 	 */
-	public boolean doAuthentication(
-		DigilibRequest request,
-		HttpServletResponse response)
-		throws Exception {
+	public boolean doAuthentication(HttpServletResponse response)
+			throws Exception {
+		return doAuthentication(dlRequest, response);
+	}
+
+	/**
+	 * check for authenticated access and redirect if necessary
+	 */
+	public boolean doAuthentication(DigilibRequest request,
+			HttpServletResponse response) throws Exception {
 		logger.debug("doAuthentication");
 		if (!useAuthentication) {
 			// shortcut if no authentication
 			return true;
 		}
 		// check if we are already authenticated
-		if (((HttpServletRequest) request.getServletRequest()).getRemoteUser()
-			== null) {
+		if (((HttpServletRequest) request.getServletRequest()).getRemoteUser() == null) {
 			logger.debug("unauthenticated so far");
 			// if not maybe we must?
 			if (isAuthRequired(request)) {
 				logger.debug("auth required, redirect");
 				// we are not yet authenticated -> redirect
-				response.sendRedirect(
-					authURLPath
+				response.sendRedirect(authURLPath
 						+ ((HttpServletRequest) request.getServletRequest())
-							.getServletPath()
+								.getServletPath()
 						+ "?"
 						+ ((HttpServletRequest) request.getServletRequest())
-							.getQueryString());
+								.getQueryString());
 			}
 		}
 		return true;
 	}
 
 	/**
-	 *  get the first page number in the directory
-	 *  (not yet functional)
+	 * get the first page number in the directory (not yet functional)
 	 */
 	public int getFirstPage(DigilibRequest request) {
 		logger.debug("getFirstPage");
@@ -177,14 +186,19 @@
 	}
 
 	/**
-	 *  get the number of pages/files in the directory
+	 * get the number of pages/files in the directory
+	 */
+	public int getNumPages() throws Exception {
+		return getNumPages(dlRequest);
+	}
+
+	/**
+	 * get the number of pages/files in the directory
 	 */
 	public int getNumPages(DigilibRequest request) throws Exception {
 		logger.debug("getNumPages");
-		DocuDirectory dd =
-			(dirCache != null)
-				? dirCache.getDirectory(request.getFilePath())
-				: null;
+		DocuDirectory dd = (dirCache != null) ? dirCache.getDirectory(request
+				.getFilePath()) : null;
 		if (dd != null) {
 			return dd.size();
 		}
@@ -193,10 +207,69 @@
 
 	/**
 	 * Returns the dlConfig.
+	 * 
 	 * @return DigilibConfiguration
 	 */
 	public DigilibConfiguration getDlConfig() {
 		return dlConfig;
 	}
 
-}
+	/**
+	 * returns if the zoom area in the request can be moved
+	 * 
+	 * @return
+	 */
+	public boolean canMoveRight() {
+		float ww = dlRequest.getAsFloat("ww");
+		float wx = dlRequest.getAsFloat("wx");
+		return (ww + wx < 1.0);
+	}
+
+	/**
+	 * returns if the zoom area in the request can be moved
+	 * 
+	 * @return
+	 */
+	public boolean canMoveLeft() {
+		float ww = dlRequest.getAsFloat("ww");
+		float wx = dlRequest.getAsFloat("wx");
+		return ((ww < 1.0) && (wx > 0));
+	}
+
+	/**
+	 * returns if the zoom area in the request can be moved
+	 * 
+	 * @return
+	 */
+	public boolean canMoveUp() {
+		float wh = dlRequest.getAsFloat("wh");
+		float wy = dlRequest.getAsFloat("wy");
+		return ((wh < 1.0) && (wy > 0));
+	}
+
+	/**
+	 * returns if the zoom area in the request can be moved
+	 * 
+	 * @return
+	 */
+	public boolean canMoveDown() {
+		float wh = dlRequest.getAsFloat("wh");
+		float wy = dlRequest.getAsFloat("wy");
+		return (wh + wy < 1.0);
+	}
+
+	/**
+	 * @return Returns the dlRequest.
+	 */
+	public DigilibRequest getRequest() {
+		return dlRequest;
+	}
+
+	/**
+	 * @param dlRequest
+	 *            The dlRequest to set.
+	 */
+	public void setRequest(DigilibRequest dlRequest) {
+		this.dlRequest = dlRequest;
+	}
+}
\ No newline at end of file
--- a/servlet/src/digilib/servlet/Scaler.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/servlet/Scaler.java	Wed Aug 04 20:42:48 2004 +0200
@@ -59,7 +59,7 @@
 public class Scaler extends HttpServlet {
 
 	// digilib servlet version (for all components)
-	public static final String dlVersion = "1.19b1";
+	public static final String dlVersion = "1.19b4";
 
 	// logger for accounting requests
 	Logger accountlog = Logger.getLogger("account.request");
--- a/servlet/src/digilib/servlet/ServletOps.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/servlet/ServletOps.java	Wed Aug 04 20:42:48 2004 +0200
@@ -5,10 +5,10 @@
  * 
  * Copyright (C) 2001, 2002 Robert Casties (robcast@mail.berlios.de)
  * 
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 2 of the License, or (at your option) any later
+ * version.
  * 
  * Please read license.txt for the full details. A copy of the GPL may be found
  * at http://www.gnu.org/copyleft/lgpl.html
@@ -47,8 +47,8 @@
 	 */
 	public static String[] getPathArray(String paths) {
 		// split list into directories
-		StringTokenizer dirs =
-			new StringTokenizer(paths, java.io.File.pathSeparator);
+		StringTokenizer dirs = new StringTokenizer(paths,
+				java.io.File.pathSeparator);
 		int n = dirs.countTokens();
 		if (n < 1) {
 			return null;
@@ -61,11 +61,11 @@
 		return pathArray;
 	}
 
-	
-	/** get a real file name for a config file pathname.
+	/**
+	 * get a real file name for a config file pathname.
 	 * 
-	 * If filename starts with "/" its treated as absolute else the path is appended 
-	 * to the WEB-INF directory of the web-app.
+	 * If filename starts with "/" its treated as absolute else the path is
+	 * appended to the WEB-INF directory of the web-app.
 	 * 
 	 * @param filename
 	 * @param sc
@@ -76,24 +76,31 @@
 		// is the filename absolute?
 		if (!f.isAbsolute()) {
 			// relative path -> use getRealPath to resolve in WEB-INF
-			filename =
-			sc.getServletContext().getRealPath("WEB-INF/" + filename);
+			filename = sc.getServletContext()
+					.getRealPath("WEB-INF/" + filename);
 		}
 		return filename;
 	}
-	
-	
+
 	/**
 	 * print a servlet response and exit
 	 */
-	public static void htmlMessage(String s, HttpServletResponse response)
-		throws IOException {
+	public static void htmlMessage(String msg, HttpServletResponse response)
+			throws IOException {
+		htmlMessage("Scaler", msg, response);
+	}
+
+	/**
+	 * print a servlet response and exit
+	 */
+	public static void htmlMessage(String title, String msg,
+			HttpServletResponse response) throws IOException {
 		response.setContentType("text/html; charset=iso-8859-1");
 		PrintWriter out = response.getWriter();
 		out.println("<html>");
-		out.println("<head><title>Scaler</title></head>");
+		out.println("<head><title>" + title + "</title></head>");
 		out.println("<body>");
-		out.println("<p>" + s + "</p>");
+		out.println("<p>" + msg + "</p>");
 		out.println("</body></html>");
 	}
 
@@ -114,7 +121,7 @@
 	 *             Exception is thrown for a IOException.
 	 */
 	public static void sendFile(File f, String mt, ServletResponse response)
-		throws FileOpException {
+			throws FileOpException {
 		logger.debug("sendRawFile(" + mt + ", " + f + ")");
 		if (mt == null) {
 			// auto-detect mime-type
@@ -140,4 +147,4 @@
 		}
 	}
 
-}
+}
\ No newline at end of file
--- a/servlet/src/digilib/servlet/Texter.java	Wed Aug 04 20:36:08 2004 +0200
+++ b/servlet/src/digilib/servlet/Texter.java	Wed Aug 04 20:42:48 2004 +0200
@@ -1,16 +1,19 @@
-/*
- * Texter.java -- Servlet for displaying text  Digital Image Library servlet
- * components  Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de) 
+/* Texter.java -- Servlet for displaying text  
+ * Digital Image Library servlet components  
+ * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)
+ *  
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
  * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.  Please read license.txt for the full details. A copy of
- * the GPL may be found at http://www.gnu.org/copyleft/lgpl.html  You should
- * have received a copy of the GNU General Public License along with this
+ * the GPL may be found at http://www.gnu.org/copyleft/lgpl.html  
+ * You should have received a copy of the GNU General Public License along with this
  * program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place, Suite 330, Boston, MA 02111-1307 USA  Created on 15.09.2003 by
- * casties  
+ * Place, Suite 330, Boston, MA 02111-1307 USA  
+ * 
+ * Created on 15.09.2003 by casties  
  */
+
 package digilib.servlet;
 
 import java.io.IOException;
@@ -35,22 +38,28 @@
  * 
  * 
  * @author casties
- *          
+ *  
  */
 public class Texter extends HttpServlet {
 
 	/** Servlet version */
-	public static String tlVersion = "0.1a3";
+	public static String tlVersion = "0.1b1";
+
 	/** DigilibConfiguration instance */
 	DigilibConfiguration dlConfig = null;
+
 	/** general logger */
 	Logger logger = Logger.getLogger("digilib.texter");
+
 	/** FileOps instance */
 	FileOps fileOp;
+
 	/** AuthOps instance */
 	AuthOps authOp;
+
 	/** ServletOps instance */
 	ServletOps servletOp;
+
 	/** DocuDirCache instance */
 	DocuDirCache dirCache;
 
@@ -58,22 +67,21 @@
 	boolean useAuthentication = false;
 
 	/*
-	 * (non-Javadoc) @see javax.servlet.Servlet#init(javax.servlet.ServletConfig)
+	 * (non-Javadoc)
+	 * 
+	 * @see javax.servlet.Servlet#init(javax.servlet.ServletConfig)
 	 */
 	public void init(ServletConfig config) throws ServletException {
 		super.init(config);
 
-		System.out.println(
-				"***** Digital Image Library Text Servlet (version "
-				+ tlVersion
-				+ ") *****");
-		
+		System.out.println("***** Digital Image Library Text Servlet (version "
+				+ tlVersion + ") *****");
+
 		// get our ServletContext
 		ServletContext context = config.getServletContext();
 		// see if there is a Configuration instance
-		dlConfig =
-			(DigilibConfiguration) context.getAttribute(
-				"digilib.servlet.configuration");
+		dlConfig = (DigilibConfiguration) context
+				.getAttribute("digilib.servlet.configuration");
 		if (dlConfig == null) {
 			// create new Configuration
 			try {
@@ -84,11 +92,9 @@
 			}
 		}
 		// say hello in the log file
-		logger.info(
-				"***** Digital Image Library Text Servlet (version "
-				+ tlVersion
-				+ ") *****");
-		
+		logger.info("***** Digital Image Library Text Servlet (version "
+				+ tlVersion + ") *****");
+
 		// set our AuthOps
 		useAuthentication = dlConfig.getAsBoolean("use-authorization");
 		authOp = (AuthOps) dlConfig.getValue("servlet.auth.op");
@@ -97,13 +103,13 @@
 	}
 
 	/*
-	 * (non-Javadoc) @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest,
-	 * javax.servlet.http.HttpServletResponse)
+	 * (non-Javadoc)
+	 * 
+	 * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest,
+	 *      javax.servlet.http.HttpServletResponse)
 	 */
-	protected void doGet(
-		HttpServletRequest request,
-		HttpServletResponse response)
-		throws ServletException, IOException {
+	protected void doGet(HttpServletRequest request,
+			HttpServletResponse response) throws ServletException, IOException {
 		// create new request with defaults
 		DigilibRequest dlReq = new DigilibRequest();
 		// set with request parameters
@@ -115,13 +121,13 @@
 	}
 
 	/*
-	 * (non-Javadoc) @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
-	 * javax.servlet.http.HttpServletResponse)
+	 * (non-Javadoc)
+	 * 
+	 * @see javax.servlet.http.HttpServlet#doPost(javax.servlet.http.HttpServletRequest,
+	 *      javax.servlet.http.HttpServletResponse)
 	 */
-	protected void doPost(
-		HttpServletRequest request,
-		HttpServletResponse response)
-		throws ServletException, IOException {
+	protected void doPost(HttpServletRequest request,
+			HttpServletResponse response) throws ServletException, IOException {
 		// create new request with defaults
 		DigilibRequest dlReq = new DigilibRequest();
 		// set with request parameters
@@ -132,31 +138,28 @@
 		processRequest(request, response);
 	}
 
-	protected void processRequest(
-		HttpServletRequest request,
-		HttpServletResponse response)
-		throws ServletException, IOException {
+protected void processRequest(HttpServletRequest request,
+			HttpServletResponse response) throws ServletException, IOException {
 
 		/*
 		 * request parameters
 		 */
-		DigilibRequest dlRequest =
-			(DigilibRequest) request.getAttribute("digilib.servlet.request");
+		DigilibRequest dlRequest = (DigilibRequest) request.getAttribute("digilib.servlet.request");
 		try {
 
 			/*
 			 * find the file to load/send
 			 */
-			if (this.getTextFile(dlRequest, "/txt") != null) {
-				ServletOps.sendFile(
-					this.getTextFile(dlRequest, "txt").getFile(),
-					null, response);
-			} else if (this.getTextFile(dlRequest, "") != null) {
-				ServletOps.sendFile(
-					this.getTextFile(dlRequest, "").getFile(),
-					null, response);
+			TextFile f = getTextFile(dlRequest, "/txt");
+			if (f != null) {
+				ServletOps.sendFile(f.getFile(), null, response);
 			} else {
-				ServletOps.htmlMessage("No Text-File!", response);
+				f = getTextFile(dlRequest, "");
+				if (f != null) {
+					ServletOps.sendFile(f.getFile(),	null, response);
+				} else {	
+					ServletOps.htmlMessage("No Text-File!", response);
+				}
 			}
 
 		} catch (FileOpException e) {
@@ -166,26 +169,24 @@
 			} catch (FileOpException ex) {
 			} // so we don't get a loop
 		}
-	}
+	}	
+
 
 	/**
 	 * Looks for a file in the given subDirectory.
 	 * 
 	 * @param dlRequest
-	 *           The received request which has the file path.
+	 *            The received request which has the file path.
 	 * @param subDirectory
-	 *           The subDirectory of the file path where the file should be
-	 *           found.
+	 *            The subDirectory of the file path where the file should
+	 *            be found.
 	 * @return The wanted Textfile or null if there wasn't a file.
 	 */
-	private TextFile getTextFile(
-		DigilibRequest dlRequest,
-		String subDirectory) {
+
+	private TextFile getTextFile(DigilibRequest dlRequest, String subDirectory) {
 		String loadPathName = dlRequest.getFilePath() + subDirectory;
 		// find the file(set)
-		return (TextFile) dirCache.getFile(
-			loadPathName,
-			dlRequest.getAsInt("pn"),
-			FileOps.CLASS_TEXT);
+		return (TextFile) dirCache.getFile(loadPathName, dlRequest
+				.getAsInt("pn"), FileOps.CLASS_TEXT);
 	}
-}
+}
\ No newline at end of file