dup: fixed erroneous gpg-related options processing; example.dup: fixed erroneous...

[matthijs/upstream/backupninja.git] / handlers / dup

diff --git a/handlers/dup b/handlers/dup
index 955605d61ff7eff57238722e4940155d284d913c..bbdb0aeff2dc4bddaa75f538e438603c7807dbc2 100644 (file)
--- a/handlers/dup
+++ b/handlers/dup
@@ -3,11 +3,27 @@
 # requires duplicity
 #
 
-getconf password
 getconf options
-getconf keep 60
+getconf testconnect yes
+getconf nicelevel 0
+
+setsection gpg
+getconf password
+getconf sign no
+getconf encryptkey
+getconf signkey
+
+setsection source
 getconf include
+getconf vsnames all
+getconf vsinclude
 getconf exclude
+
+setsection dest
+getconf incremental yes
+getconf keep 60
+getconf sshoptions
+getconf bandwidthlimit 0
 getconf desthost
 getconf destdir
 getconf destuser
@@ -15,37 +31,117 @@ destdir=${destdir%/}
 
 [ "$destdir" != "" ] || fatal "Destination directory not set"
 [ "$include" != "" ] || fatal "No source includes specified"
-[ "$password" != "" ] || fatal "No password specified"
 
-# see if we can login
-debug "ssh -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
-if [ ! $test ]; then
-       result=`ssh -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1' 2>&1`
+### vservers stuff ###
+
+# See if vservers are configured.
+# If so, check that the ones listed in $vsnames do exist.
+if [ "$vservers" == "yes" ]; then
+    [ -d "$VROOTDIR" ] || fatal "vservers enabled, but $VROOTDIR does not exist!"
+    if [ "$vsnames" == "all" ]; then
+       vsnames=""
+       for vserver in `ls $VROOTDIR | grep -E -v "lost+found|ARCHIVES"`; do
+           vsnames="$vserver $vsnames"
+       done
+    else
+       for vserver in "$vsnames"; do
+           [ -d "$VROOTDIR/$vserver" ] || fatal "vserver '$vserver' does not exist."
+       done
+    fi
+    if [ -n "$vsnames" ]; then
+       if [ -n "$vsinclude" ]; then
+           info "Using vservers '$vsnames'"
+           usevserver=1
+       fi
+    else
+       [ -z "$vsinclude" ] || warning 'vsnames is empty, vsinclude configuration lines will be ignored'
+    fi
+fi
+
+### see if we can login ###
+
+if [ "$testconnect" == "yes" ]; then
+    debug "ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
+    if [ ! $test ]; then
+       result=`ssh $sshoptions -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'`
        if [ "$result" != "1" ]; then
-               fatal "Can't connect to $desthost as $destuser."
+           fatal "Can't connect to $desthost as $destuser."
+       else
+           debug "Connected to $desthost as $destuser successfully"
        fi
+    fi
 fi
 
-if [ "`echo $keep | tr -d 0-9`" == "" ]; then
+### COMMAND-LINE MANGLING ###
+
+scpoptions="$sshoptions"
+[ "$bandwidthlimit" == 0 ] || scpoptions="$scpoptions -l $bandwidthlimit"
+
+execstr="$options --no-print-statistics --scp-command 'scp $scpoptions' --ssh-command 'ssh $sshoptions' "
+
+# deal with symmetric or asymmetric (public/private key pair) encryption
+if [ -n "$encryptkey" ]; then
+    execstr="${execstr}--encrypt-key $encryptkey "
+    debug "Data will be encrypted with the GnuPG key $encryptkey."
+else
+    [ -n "$password" ] || fatal "The password option must be set when using symmetric encryption."
+    debug "Data will be encrypted using symmetric encryption."
+fi
+
+# deal with data signing
+if [ "$sign" == yes ]; then
+    # duplicity is not able to sign data when using symmetric encryption
+    [ -n "$encryptkey" ] || fatal "The encryptkey option must be set when signing."
+    # if needed, initialize signkey to a value that is not empty (checked above)
+    [ -n "$signkey" ] || signkey="$encryptkey"
+    # check password validity
+    [ -n "$password" ] || fatal "The password option must be set when signing."
+    execstr="${execstr}--sign-key $signkey "
+    debug "Data will be signed will the GnuPG key $signkey."
+else
+    debug "Data won't be signed."
+fi
+
+if [ "$keep" != "yes" ]; then
+    if [ "`echo $keep | tr -d 0-9`" == "" ]; then
        keep="${keep}D"
+    fi
+    execstr="${execstr}--remove-older-than $keep "
+fi
+
+if [ "$incremental" == "no" ]; then
+    execstr="${execstr}--full "
 fi
 
 execstr_serverpart="scp://$destuser@$desthost/$destdir"
 execstr_clientpart="/"
-execstr="$options --no-print-statistics --remove-older-than $keep "
+
+### SOURCE ###
 
 # excludes
 for i in $exclude; do
        str="${i//__star__/*}"
-       execstr="${execstr}--exclude $str "
+       execstr="${execstr}--exclude '$str' "
 done
        
 # includes 
 for i in $include; do
        str="${i//__star__/*}"
-       execstr="${execstr}--include $str "
+       execstr="${execstr}--include '$str' "
 done
 
+# vsincludes
+if [ $usevserver ]; then
+    for vserver in $vsnames; do
+       for vi in $vsinclude; do
+           str="${vi//__star__/*}"
+           execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
+       done
+    done
+fi
+
+### EXECUTE ###
+
 # exclude everything else, start with root
 #execstr="${execstr}--exclude '**' / "
                
@@ -56,16 +152,17 @@ execstr=${execstr//\\*/\\\\\\*}
 
 debug "duplicity $execstr --exclude '**' / $execstr_serverpart"
 if [ ! $test ]; then
-       PASSPHRASE=$password
-       export PASSPHRASE
-       output=`duplicity $execstr --exclude '**' / $execstr_serverpart 2>&1`
+        export PASSPHRASE=$password
+       output=`nice -n $nicelevel \
+                  su -c \
+                    "duplicity $execstr --exclude '**' / $execstr_serverpart 2>&1"`
        code=$?
-       if [ "$code" == "0" ]; then
+       if [ $code -eq 0 ]; then
                debug $output
                info "Duplicity finished successfully."
        else
-               warning $output
-               warning "Duplicity failed."
+               debug $output
+               fatal "Duplicity failed."
        fi
 fi