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https://github.com/deajan/obackup.git
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Work in progress for encryption
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deajan
parent
2ac8b646a9
commit
084fd91005
116
dev/n_obackup.sh
116
dev/n_obackup.sh
@ -5,7 +5,7 @@ PROGRAM="obackup"
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AUTHOR="(C) 2013-2016 by Orsiris de Jong"
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CONTACT="http://www.netpower.fr/obackup - ozy@netpower.fr"
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PROGRAM_VERSION=2.1-dev
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PROGRAM_BUILD=2016083003
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PROGRAM_BUILD=2016083102
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IS_STABLE=no
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source "./ofunctions.sh"
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@ -90,18 +90,29 @@ function CheckEnvironment {
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fi
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if [ "$FILE_BACKUP" != "no" ]; then
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if [ "$ENCRYPTION" == "yes" ]; then
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if ! type gpg > /dev/null 2>&1 ; then
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Logger "gpg not present. Cannot encrypt backup files." "CRITICAL"
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CAN_BACKUP_FILES=false
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fi
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else
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if ! type rsync > /dev/null 2>&1 ; then
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Logger "rsync not present. Cannot backup files." "CRITICAL"
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CAN_BACKUP_FILES=false
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fi
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if ! type rsync > /dev/null 2>&1 ; then
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Logger "rsync not present. Cannot backup files." "CRITICAL"
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CAN_BACKUP_FILES=false
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fi
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fi
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if [ "$ENCRYPTION" == "yes" ]; then
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CheckDecrpytEnvironnment
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fi
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}
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function CheckDecryptEnvironnment {
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if ! type gpg2 > /dev/null 2>&1 ; then
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if ! type gpg > /dev/null 2>&1; then
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Logger "gpg2 nor gpg not present. Cannot encrypt backup files." "CRITICAL"
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CAN_BACKUP_FILES=false
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else
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Logger "gpg2 not present, falling back to gpg." "NOTICE"
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ENCRYPT_TOOL=gpg
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fi
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else
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ENCRYPT_TOOL=gpg2
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fi
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}
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function CheckCurrentConfig {
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@ -836,6 +847,8 @@ function BackupDatabases {
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function PrepareEncryptFiles {
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local tmpPath="${2}"
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#TODO: handle dryrun, do we need to create temp dir ?
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__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
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if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
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@ -858,6 +871,51 @@ function EncrpytFiles {
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# Send files to remote, rotate & copy
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}
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function DecryptFiles {
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local filePath="${1}" # Path to files to decrypt
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local passphraseFile="${2}" # Passphrase file to decrypt files
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local passphrase="${3}" # Passphrase to decrypt files
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__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
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local secret
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local successCounter=0
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local errorCounter=0
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local cryptFileExtension=".obackup.gpg"
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if [ ! -w "$filePath" ]; then
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Logger "Directory [$filePath] is not writable. Cannot decrypt files." "CRITICAL"
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exit 1
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fi
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if [ -f "$passphraseFile" ]; then
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secret="--passphrase-file $passphraseFile"
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elif [ "$passphrase" != "" ]; then
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secret="--passphrase $passphrase"
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else
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Logger "Invalid passphrase file or passphrase." "CRITICAL"
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exit 1
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fi
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find "$filePath" -type f -iname "*$cryptFileExtension" -print0 | while IFS= read -r -d $'\0' encryptedFile; do
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Logger "Decrypting [$encryptedFile]." "VERBOSE"
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$ENCRYPT_TOOL --out "${encryptedFile%%$cryptFileExtension*}" --batch $secret --decrypt "$encryptedFile" > "$RUN_DIR/$PROGRAM.$FUNCNAME.$SCRIPT_PID" 2>&1
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if [ $? != 0 ]; then
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Logger "Cannot decrypt [$encryptedFile]." "ERROR"
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errorCounter=$((errorCounter+1))
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else
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succesCounter=$((successCounter+1))
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rm -f "$encryptedFile"
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if [ $? != 0 ]; then
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Logger "Cannot delete original file [$encryptedFile] after decryption." "ERROR"
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Logger "Command output\n$(cat $RUN_DIR/$PROGRAM.$FUNCNAME.$SCRIPT_PID)" "ERROR"
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fi
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fi
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done
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Logger "Decrypted [$successCounter] files successfully. Failed to decrypt [$errorCounter] files." "NOTICE"
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exit 0
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}
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function Rsync {
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local backup_directory="${1}" # Which directory to backup
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local is_recursive="${2}" # Backup only files at toplevel of directory
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@ -892,10 +950,10 @@ function Rsync {
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backup_directory=$(EscapeSpaces "$backup_directory")
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rsync_cmd="$(type -p $RSYNC_EXECUTABLE) $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $RSYNC_NO_RECURSE_ARGS $RSYNC_DELETE $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" \"$REMOTE_USER@$REMOTE_HOST:$backup_directory\" \"$file_storage_path\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1"
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elif [ "$BACKUP_TYPE" == "push" ]; then
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CheckConnectivity3rdPartyHosts
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CheckConnectivityRemoteHost
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file_storage_path=$(EscapeSpaces "$file_storage_path")
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_CreateDirectoryRemote "$file_storage_path"
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CheckConnectivity3rdPartyHosts
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CheckConnectivityRemoteHost
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rsync_cmd="$(type -p $RSYNC_EXECUTABLE) $RSYNC_ARGS $RSYNC_DRY_ARG $RSYNC_ATTR_ARGS $RSYNC_TYPE_ARGS $RSYNC_NO_RECURSE_ARGS $RSYNC_DELETE $RSYNC_PATTERNS $RSYNC_PARTIAL_EXCLUDE --rsync-path=\"$RSYNC_PATH\" -e \"$RSYNC_SSH_CMD\" \"$backup_directory\" \"$REMOTE_USER@$REMOTE_HOST:$file_storage_path\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1"
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fi
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@ -1175,6 +1233,11 @@ function RotateBackups {
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fi
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}
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function SetTraps {
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trap TrapStop INT QUIT TERM HUP
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trap TrapQuit EXIT
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}
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function Init {
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__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
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@ -1182,9 +1245,6 @@ function Init {
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local hosturiandpath
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local hosturi
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trap TrapStop INT QUIT TERM HUP
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trap TrapQuit EXIT
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## Test if target dir is a ssh uri, and if yes, break it down it its values
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if [ "${REMOTE_SYSTEM_URI:0:6}" == "ssh://" ] && [ "$BACKUP_TYPE" != "local" ]; then
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REMOTE_OPERATION="yes"
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@ -1289,7 +1349,7 @@ function Usage {
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echo "$AUTHOR"
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echo "$CONTACT"
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echo ""
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echo "usage: obackup.sh /path/to/backup.conf [OPTIONS]"
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echo "usage: $0 /path/to/backup.conf [OPTIONS]"
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echo ""
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echo "OPTIONS:"
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echo "--dry will run obackup without actually doing anything, just testing"
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@ -1300,6 +1360,10 @@ function Usage {
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echo "--no-maxtime disables any soft and hard execution time checks"
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echo "--delete Deletes files on destination that vanished on source"
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echo "--dontgetsize Does not try to evaluate backup size"
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echo ""
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echo -e "$PROGRAM may also be used to \e[93mdecrypt\e[0m a backup encrypted with $PROGRAM."
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echo "usage: $0 --decrypt=/path/to/encrypted_backup --passphrase-file=/path/to/passphrase"
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echo "usage: $0 --decrypt=/path/to/encrypted_backup --passphrase=MySecretPassPhrase (security risk)"
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exit 128
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}
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@ -1309,6 +1373,9 @@ _SILENT=false
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no_maxtime=false
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stats=false
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PARTIAL=no
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_DECRYPT_MODE=false
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DECRYPT_PATH=""
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function GetCommandlineArguments {
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if [ $# -eq 0 ]; then
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@ -1344,11 +1411,26 @@ function GetCommandlineArguments {
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--help|-h|--version|-v)
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Usage
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;;
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--decrypt=*)
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_DECRYPT_MODE=true
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DECRYPT_PATH="${i##*=}"
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;;
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--passphrase=*)
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PASSPHRASE="${i##*=}"
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;;
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--passphrase-file=*)
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PASSPHRASE_FILE="${i##*=}"
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;;
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esac
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done
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}
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SetTraps
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GetCommandlineArguments "$@"
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if [ "$_DECRYPT_MODE" == true ]; then
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CheckDecryptEnvironnment
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DecryptFiles "$DECRYPT_PATH" "$PASSPHRASE_FILE" "$PASSPHRASE"
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fi
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LoadConfigFile "$1"
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if [ "$LOGFILE" == "" ]; then
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if [ -w /var/log ]; then
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