From 01e7ed9dcdbffc2f0d24d03ba83f7313d785620b Mon Sep 17 00:00:00 2001
From: "David A. Madore" <david+git@madore.org>
Date: Fri, 10 Oct 2014 22:16:11 +0200
Subject: Permalinks in servlet system.

---
 org/madore/damlengine/WeblogLink.java    | 12 ++++--------
 org/madore/damlengine/WeblogServlet.java | 11 ++++++++---
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/org/madore/damlengine/WeblogLink.java b/org/madore/damlengine/WeblogLink.java
index f29c69e..9762e49 100644
--- a/org/madore/damlengine/WeblogLink.java
+++ b/org/madore/damlengine/WeblogLink.java
@@ -39,10 +39,7 @@ public final class WeblogLink {
     public void setTypeSingle() { this.t = Type.SINGLE; }
 
     public void setTypeStandard() {
-	if ( singlePage == null )
-	    this.t = Type.MONTH;
-	else
-	    this.t = Type.SINGLE;
+	this.t = Type.SINGLE;
     }
 
     public String getFragment() {
@@ -59,10 +56,9 @@ public final class WeblogLink {
 	case CAT:
 	    return baseDir + cat + ".html";
 	case SINGLE:
-	    if ( singlePage == null )
-		throw new IllegalArgumentException("can't have single page link to non single-page entry");
-	    return baseDir + yearStr + "-" + monthStr + "-" + dayStr
-		+ "-" + singlePage + ".html";
+	    return baseDir + "d." + yearStr + "-" + monthStr + "-" + dayStr
+		+ "." + numberStr
+		+ (singlePage==null ? "" : "." + singlePage) + ".html";
 	default:
 	    throw new AssertionError("unknown type");
 	}
diff --git a/org/madore/damlengine/WeblogServlet.java b/org/madore/damlengine/WeblogServlet.java
index b68f114..648c12f 100644
--- a/org/madore/damlengine/WeblogServlet.java
+++ b/org/madore/damlengine/WeblogServlet.java
@@ -34,7 +34,7 @@ import javax.servlet.http.HttpServletResponse;
 
 public class WeblogServlet extends HttpServlet {
 
-    private static final long serialVersionUID = 2014100902L;
+    private static final long serialVersionUID = 2014101001L;
 
     @Override
     public void init(ServletConfig cfg)
@@ -65,27 +65,32 @@ public class WeblogServlet extends HttpServlet {
 	    Matcher matcher;
 	    if ( pathInfo == null )
 		return new NoSuchPath();
-	    if ( (matcher=Pattern.compile("/d\\.(\\d{4}-\\d{2}-\\d{2})\\.(\\d{4})\\.html").matcher(pathInfo)).matches() ) {
+	    if ( (matcher=Pattern.compile("/d\\.(\\d{4}-\\d{2}-\\d{2})\\.(\\d{4})(?:\\.([\\p{Alnum}\\-]*))?\\.html").matcher(pathInfo)).matches() ) {
 		final String date;
 		final int number;
+		final String extra;
 		try {
 		    date = matcher.group(1);
 		    number = Integer.parseInt(matcher.group(2));
+		    extra = matcher.group(3);
 		} catch (NumberFormatException e) {
 		    return new NoSuchPath();
 		}
 		try {
 		    final Connection conn = WeblogDatabaseConnection.getConnection();
 		    final PreparedStatement selSt
-			= conn.prepareStatement("SELECT id , extract(epoch from mdate) FROM entries WHERE edate=? AND id=?");
+			= conn.prepareStatement("SELECT id , extract(epoch from mdate) , do_single_page FROM entries WHERE edate=? AND id=?");
 		    selSt.setString(1,date);
 		    selSt.setInt(2,number);
 		    final ResultSet selRes = selSt.executeQuery();
 		    if ( selRes.next() ) {
 			int id = selRes.getInt(1);
 			double mdate = selRes.getDouble(2);
+			String doSinglePage = selRes.getString(3);
 			if ( id != number )
 			    throw new ServletException("this cannot happen");
+			if ( extra != null && ! extra.equals(doSinglePage) )
+			    return new NoSuchPath();
 			long lastModified = (long)(mdate*1000);
 			long thisLastModified;
 			try {
-- 
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