Updated Debian package post install script admin password encoding.

To fit the now default HTTP authentication method set to Digest in
commit f7fce1b.
Also fixed unauthenticated access from localhost setting when first
installing the Debian package and letting the prompted password field
empty.

debian/postinst

@@ -44,16 +44,20 @@ CONFIGFILE=/var/lib/yacy/SETTINGS/yacy.conf
 
 . /usr/share/debconf/confmodule
 
-# Generate config file, if it doesn't exist.
-if [ ! -e $CONFIGFILE ]; then
-    mkdir -p /var/lib/yacy/SETTINGS
-    echo "# Initial configfile from debconf" > $CONFIGFILE
-    echo "peerName=$HOSTNAME" >> $CONFIGFILE
-    echo "adminAccountBase64MD5=" >> $CONFIGFILE
-    echo "network.unit.definition=defaults/yacy.network.freeworld.unit" >> $CONFIGFILE
-    echo "adminAccountForLocalhost=false" >> $CONFIGFILE
-    echo "javastart_Xmx=Xmx600m" >> $CONFIGFILE
-    echo "javastart_Xms=Xmx600m" >> $CONFIGFILE
+if [ -e $CONFIGFILE ]; then
+	ADMIN_LOGIN=$(grep ^adminAccountUserName= "$CONFIGFILE" | cut -d= -f2 | tr -d '\r\n')
+    ADMIN_REALM=$(grep "^adminRealm=" "$CONFIGFILE" | cut -d= -f2 | tr -d '\r\n')
+else
+    ADMIN_LOGIN=$(grep ^adminAccountUserName= /usr/share/yacy/defaults/yacy.init | cut -d= -f2 | tr -d '\r\n')
+    ADMIN_REALM=$(grep "^adminRealm=" /usr/share/yacy/defaults/yacy.init | cut -d= -f2 | tr -d '\r\n')
+fi
+
+# admin user name and realm should not be empty : by the way, in that case use the same default values as in YaCy application
+if [ -z "$ADMIN_LOGIN" ]; then
+    ADMIN_LOGIN="admin"
+fi
+if [ -z "$ADMIN_REALM" ]; then
+    ADMIN_REALM="YaCy"
 fi
 
 # Substitute in the values from the debconf db.
@@ -65,13 +69,33 @@ PEERNAME="$RET"
 db_get yacy/password
 PASSWORD="$RET"
 if [ "$PASSWORD" != "" ]; then
-  BASE64=$(java -cp /usr/share/java/yacy/yacycore.jar net.yacy.cora.order.Base64Order -es "admin:$PASSWORD")
-  B64MD5=$(java -cp /usr/share/java/yacy/yacycore.jar net.yacy.cora.order.Digest  -strfhex "$BASE64")
-  PASSWORD_HASH=$(echo $B64MD5 | sed "s/\(\S\) .*/\1/")
+  B64MD5=$(java -cp /usr/share/java/yacy/yacycore.jar net.yacy.cora.order.Digest -strfhex "$ADMIN_LOGIN:$ADMIN_REALM:$PASSWORD" | head -n 1)
+  PASSWORD_HASH="MD5:$B64MD5"
+  # When entered password is not empty always disable unauthenticated admin access from localhost
+  ADMIN_ACCOUNT_LOCALHOST="false"
   db_set yacy/password ""
 else
-  PASSWORD_HASH=$(grep "^adminAccountBase64MD5=" $CONFIGFILE | sed -e "s/^adminAccountBase64MD5=\(.*\)/\1/")
+  if [ -e $CONFIGFILE ]; then
+    PASSWORD_HASH=$(grep "^adminAccountBase64MD5=" $CONFIGFILE | sed -e "s/^adminAccountBase64MD5=\(.*\)/\1/" | tr -d '\r\n')
+    ADMIN_ACCOUNT_LOCALHOST=$(grep "^adminAccountForLocalhost=" "$CONFIGFILE" | cut -d= -f2 | tr -d '\r\n')
+  else
+    PASSWORD_HASH=""
+    ADMIN_ACCOUNT_LOCALHOST="true"
+  fi
 fi
+
+# Generate config file, if it doesn't exist.
+if [ ! -e $CONFIGFILE ]; then
+    mkdir -p /var/lib/yacy/SETTINGS
+    echo "# Initial configfile from debconf" > $CONFIGFILE
+    echo "peerName=$HOSTNAME" >> $CONFIGFILE
+    echo "adminAccountBase64MD5=" >> $CONFIGFILE
+    echo "adminAccountForLocalhost=$ADMIN_ACCOUNT_LOCALHOST" >> $CONFIGFILE
+    echo "network.unit.definition=defaults/yacy.network.freeworld.unit" >> $CONFIGFILE
+    echo "javastart_Xmx=Xmx600m" >> $CONFIGFILE
+    echo "javastart_Xms=Xmx600m" >> $CONFIGFILE
+fi
+
 db_get yacy/network
 NETWORK="$RET"
 
@@ -97,6 +121,7 @@ cp -a -f $CONFIGFILE $CONFIGFILE.tmp
 
 sed -e "s,^ *peerName=.*,peerName=$PEERNAME," \
     -e "s,^ *adminAccountBase64MD5=.*,adminAccountBase64MD5=$PASSWORD_HASH," \
+    -e "s,^ *adminAccountForLocalhost=.*,adminAccountForLocalhost=$ADMIN_ACCOUNT_LOCALHOST," \
     -e "s,^ *network\.unit\.definition=.*,network\.unit\.definition=$NETWORK," \
     -e "s,^ *javastart_Xms=.*,javastart_Xms=Xms${MEMORY_START}m," \
     -e "s,^ *javastart_Xmx=.*,javastart_Xmx=Xmx${MEMORY_MAX}m," \