doctype2mime fix, influences metadata conversion between old metadata

and solr

defaults/httpd.mime

@@ -47,6 +47,7 @@ kml     = application/vnd.google-earth.kml+xml
 lha     = application/x-lzh
 lzh     = application/x-lzh
 m4v     = video/x-m4v
+md5     = text/plain
 mf      = application/octet-stream
 mov     = video/quicktime
 mm      = application/freemind

source/de/anomic/crawler/retrieval/Response.java

@@ -118,6 +118,12 @@ public class Response {
     }
 
     public static String doctype2mime(String ext, char doctype) {
+        if (doctype == DT_PDFPS) return "application/pdf";
+        if (doctype == DT_HTML) return "text/html";
+        if (doctype == DT_DOC) return "application/msword";
+        if (doctype == DT_FLASH) return "application/x-shockwave-flash";
+        if (doctype == DT_SHARE) return "text/plain";
+        if (doctype == DT_BINARY) return "application/octet-stream";
         String mime = Classification.ext2mime(ext);
         int p = mime.indexOf('/');
         if (p < 0) return mime;

source/net/yacy/cora/document/Classification.java

@@ -184,7 +184,7 @@ public class Classification {
     }
 
     public static String ext2mime(final String ext) {
-        return mimeTable.getProperty(ext, "application/" + ext);
+        return mimeTable.getProperty(ext, "application/" + (ext == null || ext.length() == 0 ? "octet-stream" : ext));
     }
 
     public static String ext2mime(final String ext, final String dfltMime) {