created function maketemp, to be used by backupninja

and maildir handler for creating safe temp files.

git-svn-id: http://code.autistici.org/svn/backupninja/trunk@184 758a04ac-41e6-0310-8a23-8373a73cc35d

diff --git a/backupninja b/backupninja
index ea7304e115918c95f839b293dd4156cc6dac14f5..d653144a66520082f9ffd0472d59533a59c4f025 100755 (executable)
--- a/backupninja
+++ b/backupninja
@@ -131,6 +131,23 @@ function setsection() {
        CURRENT_SECTION=$1
 }
 
+
+#
+# create a temporary file in a secure way.
+#
+function maketemp() {
+       if [ -x /bin/mktemp ]
+       then
+               local tempfile=`mktemp /tmp/$1.XXXXXXXX`
+       else
+               DATE=`date`
+               sectmp=`echo $DATE | /usr/bin/md5sum | cut -d- -f1`
+               local tempfile=/tmp/$1.$sectmp
+       fi
+       echo $tempfile
+}
+
+
 #
 # sets a global var with name equal to $1
 # to the value of the configuration parameter $1
@@ -305,14 +322,7 @@ function process_action() {
        let "actions_run += 1"
 
        # call the handler:
-       if [ -x /bin/mktemp ]
-       then
-               local bufferfile=`mktemp /tmp/backupninja.buffer.XXXXXXXX`
-       else
-               DATE=`date`
-               sectmp=`echo $DATE | /usr/bin/md5sum | cut -d- -f1`
-               local bufferfile=/tmp/backupninja.buffer.$sectmp
-       fi
+       local bufferfile=`maketemp backupninja.buffer`
        echo "" > $bufferfile
        echo_debug_msg=1
        (

diff --git a/changelog b/changelog
index 46227d4cc88c687e23d1b1000a8eff443d7e183b..ee0d7271a1407b1e283a6a59f08392af9c3abb63 100644 (file)
--- a/changelog
+++ b/changelog
@@ -1,6 +1,8 @@
+version 0.9 -- unreleased
        removed erroneous magic file marker in pgsql handler
        fixed insecure temporary file creation
        fixed incorrect find positional
+       
 version 0.8 -- September 15 2005
        added pgsql (PostgreSQL) handler, with vservers support.
        added vservers support to duplicity handler

diff --git a/handlers/maildir b/handlers/maildir
index 0af8ff7c7d66e320cc6c5f5c84c80ea6c66c2a4a..5219bef54a32f03072cec111c89b43d14901a62e 100644 (file)
--- a/handlers/maildir
+++ b/handlers/maildir
@@ -12,7 +12,17 @@
 #    weekly.2
 #    monthly.1
 #  if keepdaily is 3, keepweekly is 2, and keepmonthly is 1. 
-# 
+#
+#  The basic algorithm is to rsync each maildir individually,
+#  and to use hard links for retaining historical data.
+#
+#  We rsync each maildir individually because it becomes very
+#  unweldy to start a single rsync of many hundreds of thousands
+#  of files. 
+#
+#  For the backup rotation to work, destuser must be able to run 
+#  arbitrary bash commands on the desthost.
+#
 ##############################################################
 
 getconf rotate yes
@@ -101,8 +111,8 @@ $dir $destuser@$desthost:$destdir/$letter \
 # and add new ones which have just been created.
 
 function do_remove() {
-       local tmp1=/tmp/maildirtmpfile$$
-       local tmp2=/tmp/maildirtmpfile$$
+       local tmp1=`maketemp maildir-tmp-file`
+       local tmp2=`maketemp maildir-tmp-file`
        
        for i in a b c d e f g h i j k l m n o p q r s t u v w x y z; do
                ls -1 "$srcdir/$i" | sort > $tmp1