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1c88c73b5c
obackup/dev/n_obackup.sh
deajan 1c88c73b5c WIP: encrypt & decrypt functions working
2016-09-01 14:37:01 +02:00

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#!/usr/bin/env bash
#TODO: missing files says Backup succeed
###### Remote push/pull (or local) backup script for files & databases
PROGRAM="obackup"
AUTHOR="(C) 2013-2016 by Orsiris de Jong"
CONTACT="http://www.netpower.fr/obackup - ozy@netpower.fr"
PROGRAM_VERSION=2.1-dev
PROGRAM_BUILD=2016083102
IS_STABLE=no
source "./ofunctions.sh"
_LOGGER_PREFIX="time"
## Working directory for partial downloads
PARTIAL_DIR=".obackup_workdir_partial"
## File extension for encrypted files
CRYPT_FILE_EXTENSION=".$PROGRAM.gpg"
# List of runtime created global variables
# $SQL_DISK_SPACE, disk space available on target for sql backups
# $FILE_DISK_SPACE, disk space available on target for file backups
# $SQL_BACKUP_TASKS, list of all databases to backup, space separated
# $SQL_EXCLUDED_TASKS, list of all database to exclude from backup, space separated
# $FILE_BACKUP_TASKS list of directories to backup, found in config file
# $FILE_RECURSIVE_BACKUP_TASKS, list of directories to backup, computed from config file recursive list
# $FILE_RECURSIVE_EXCLUDED_TASKS, list of all directories excluded from recursive list
# $FILE_SIZE_LIST_LOCAL, list of all directories to include in GetDirectoriesSize, enclosed by escaped doublequotes for local command
# $FILE_SIZE_LIST_REMOTE, list of all directories to include in GetDirectoriesSize, enclosed by escaped singlequotes for remote command
CAN_BACKUP_SQL=true
CAN_BACKUP_FILES=true
function TrapStop {
Logger "/!\ Manual exit of backup script. Backups may be in inconsistent state." "WARN"
exit 2
}
function TrapQuit {
local exitcode
if [ $ERROR_ALERT == true ]; then
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with errors." "ERROR"
SendAlert
exitcode=1
elif [ $WARN_ALERT == true ]; then
if [ "$RUN_AFTER_CMD_ON_ERROR" == "yes" ]; then
RunAfterHook
fi
CleanUp
Logger "$PROGRAM finished with warnings." "WARN"
SendAlert
exitcode=2
else
RunAfterHook
CleanUp
Logger "$PROGRAM finshed without errors." "NOTICE"
exitcode=0
fi
if [ -f "$RUN_DIR/$PROGRAM.$INSTANCE_ID" ]; then
rm -f "$RUN_DIR/$PROGRAM.$INSTANCE_ID"
fi
KillChilds $$ > /dev/null 2>&1
exit $exitcode
}
function CheckEnvironment {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$REMOTE_OPERATION" == "yes" ]; then
if ! type ssh > /dev/null 2>&1 ; then
Logger "ssh not present. Cannot start backup." "CRITICAL"
exit 1
fi
if [ "$SQL_BACKUP" != "no" ]; then
if ! type mysqldump > /dev/null 2>&1 ; then
Logger "mysqldump not present. Cannot backup SQL." "CRITICAL"
CAN_BACKUP_SQL=false
fi
if ! type mysql > /dev/null 2>&1 ; then
Logger "mysql not present. Cannot backup SQL." "CRITICAL"
CAN_BACKUP_SQL=false
fi
fi
fi
if [ "$FILE_BACKUP" != "no" ]; then
if ! type rsync > /dev/null 2>&1 ; then
Logger "rsync not present. Cannot backup files." "CRITICAL"
CAN_BACKUP_FILES=false
fi
fi
if [ "$ENCRYPTION" == "yes" ]; then
CheckCryptEnvironnment
fi
}
function CheckCryptEnvironnment {
if ! type gpg2 > /dev/null 2>&1 ; then
if ! type gpg > /dev/null 2>&1; then
Logger "gpg2 nor gpg not present. Cannot encrypt backup files." "CRITICAL"
CAN_BACKUP_FILES=false
else
Logger "gpg2 not present, falling back to gpg." "NOTICE"
ENCRYPT_TOOL=gpg
fi
else
ENCRYPT_TOOL=gpg2
fi
}
function CheckCurrentConfig {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$INSTANCE_ID" == "" ]; then
Logger "No INSTANCE_ID defined in config file." "CRITICAL"
exit 1
fi
# Check all variables that should contain "yes" or "no"
declare -a yes_no_vars=(SQL_BACKUP FILE_BACKUP ENCRYPTION CREATE_DIRS KEEP_ABSOLUTE_PATHS GET_BACKUP_SIZE SSH_COMPRESSION SSH_IGNORE_KNOWN_HOSTS REMOTE_HOST_PING SUDO_EXEC DATABASES_ALL PRESERVE_PERMISSIONS PRESERVE_OWNER PRESERVE_GROUP PRESERVE_EXECUTABILITY PRESERVE_ACL PRESERVE_XATTR COPY_SYMLINKS KEEP_DIRLINKS PRESERVE_HARDLINKS RSYNC_COMPRESS PARTIAL DELETE_VANISHED_FILES DELTA_COPIES ROTATE_SQL_BACKUPS ROTATE_FILE_BACKUPS STOP_ON_CMD_ERROR RUN_AFTER_CMD_ON_ERROR)
for i in "${yes_no_vars[@]}"; do
test="if [ \"\$$i\" != \"yes\" ] && [ \"\$$i\" != \"no\" ]; then Logger \"Bogus $i value defined in config file. Correct your config file or update it with the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
if [ "$BACKUP_TYPE" != "local" ] && [ "$BACKUP_TYPE" != "pull" ] && [ "$BACKUP_TYPE" != "push" ]; then
Logger "Bogus BACKUP_TYPE value in config file." "CRITICAL"
exit 1
fi
# Check all variables that should contain a numerical value >= 0
declare -a num_vars=(BACKUP_SIZE_MINIMUM SQL_WARN_MIN_SPACE FILE_WARN_MIN_SPACE SOFT_MAX_EXEC_TIME_DB_TASK HARD_MAX_EXEC_TIME_DB_TASK COMPRESSION_LEVEL SOFT_MAX_EXEC_TIME_FILE_TASK HARD_MAX_EXEC_TIME_FILE_TASK BANDWIDTH SOFT_MAX_EXEC_TIME_TOTAL HARD_MAX_EXEC_TIME_TOTAL ROTATE_SQL_COPIES ROTATE_FILE_COPIES KEEP_LOGGING MAX_EXEC_TIME_PER_CMD_BEFORE MAX_EXEC_TIME_PER_CMD_AFTER)
for i in "${num_vars[@]}"; do
test="if [ $(IsNumeric \"\$$i\") -eq 0 ]; then Logger \"Bogus $i value defined in config file. Correct your config file or update it with the update script if using and old version.\" \"CRITICAL\"; exit 1; fi"
eval "$test"
done
if [ "$FILE_BACKUP" == "yes" ]; then
if [ "$DIRECTORY_LIST" == "" ] && [ "$RECURSIVE_DIRECTORY_LIST" == "" ]; then
Logger "No directories specified in config file, no files to backup." "ERROR"
CAN_BACKUP_FILES=false
fi
fi
#TODO-v2.1(ongoing WIP): Add runtime variable tests (RSYNC_ARGS etc)
if [ "$REMOTE_OPERATION" == "yes" ] && [ ! -f "$SSH_RSA_PRIVATE_KEY" ]; then
Logger "Cannot find rsa private key [$SSH_RSA_PRIVATE_KEY]. Cannot connect to remote system." "CRITICAL"
exit 1
fi
if [ -f "$ENCRYPT_GPG_PYUBKEY" ]; then
Logger "Cannot find gpg pubkey [$ENCRYPT_GPG_PUBKEY]. Cannot encrypt backup files." "CRITICAL"
exit 1
fi
}
function CheckRunningInstances {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ -f "$RUN_DIR/$PROGRAM.$INSTANCE_ID" ]; then
pid=$(cat "$RUN_DIR/$PROGRAM.$INSTANCE_ID")
if ps aux | awk '{print $2}' | grep $pid > /dev/null; then
Logger "Another instance [$INSTANCE_ID] of obackup is already running." "CRITICAL"
exit 1
fi
fi
echo $SCRIPT_PID > "$RUN_DIR/$PROGRAM.$INSTANCE_ID"
}
function _ListDatabasesLocal {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local sql_cmd=
sql_cmd="mysql -u $SQL_USER -Bse 'SELECT table_schema, round(sum( data_length + index_length ) / 1024) FROM information_schema.TABLES GROUP by table_schema;' > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1"
Logger "cmd: $sql_cmd" "DEBUG"
eval "$sql_cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -eq 0 ]; then
Logger "Listing databases succeeded." "NOTICE"
else
Logger "Listing databases failed." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
return 1
fi
}
function _ListDatabasesRemote {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local sql_cmd=
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
sql_cmd="$SSH_CMD \"mysql -u $SQL_USER -Bse 'SELECT table_schema, round(sum( data_length + index_length ) / 1024) FROM information_schema.TABLES GROUP by table_schema;'\" > \"$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID\" 2>&1"
Logger "cmd: $sql_cmd" "DEBUG"
eval "$sql_cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? -eq 0 ]; then
Logger "Listing databases succeeded." "NOTICE"
else
Logger "Listing databases failed." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
return 1
fi
}
function ListDatabases {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local outputFile # Return of subfunction
local dbName
local dbSize
local dbBackup
local dbArray
if [ $CAN_BACKUP_SQL == false ]; then
Logger "Cannot list databases." "ERROR"
return 1
fi
Logger "Listing databases." "NOTICE"
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
_ListDatabasesLocal
if [ $? != 0 ]; then
outputFile=""
else
outputFile="$RUN_DIR/$PROGRAM._ListDatabasesLocal.$SCRIPT_PID"
fi
elif [ "$BACKUP_TYPE" == "pull" ]; then
_ListDatabasesRemote
if [ $? != 0 ]; then
outputFile=""
else
outputFile="$RUN_DIR/$PROGRAM._ListDatabasesRemote.$SCRIPT_PID"
fi
fi
if [ -f "$outputFile" ] && [ $CAN_BACKUP_SQL == true ]; then
while read -r line; do
while read -r name size; do dbName=$name; dbSize=$size; done <<< "$line"
#db_name="${line% *}"
#db_size="${line# *}"
#db_name=$(echo $line | cut -f1)
#db_size=$(echo $line | cut -f2)
if [ "$DATABASES_ALL" == "yes" ]; then
dbBackup=1
IFS=$PATH_SEPARATOR_CHAR read -r -a dbArray <<< "$DATABASES_ALL_EXCLUDE_LIST"
for j in "${dbArray[@]}"; do
if [ "$dbName" == "$j" ]; then
dbBackup=0
fi
done
else
dbBackup=0
IFS=$PATH_SEPARATOR_CHAR read -r -a dbArray <<< "$DATABASES_LIST"
for j in "${dbArray[@]}"; do
if [ "$dbName" == "$j" ]; then
dbBackup=1
fi
done
fi
if [ $dbBackup -eq 1 ]; then
if [ "$SQL_BACKUP_TASKS" != "" ]; then
SQL_BACKUP_TASKS="$SQL_BACKUP_TASKS $dbName"
else
SQL_BACKUP_TASKS="$dbName"
fi
TOTAL_DATABASES_SIZE=$((TOTAL_DATABASES_SIZE+$dbSize))
else
SQL_EXCLUDED_TASKS="$SQL_EXCLUDED_TASKS $dbName"
fi
done < "$outputFile"
Logger "Database backup list: $SQL_BACKUP_TASKS" "DEBUG"
Logger "Database exclude list: $SQL_EXCLUDED_TASKS" "DEBUG"
else
Logger "Will not execute database backup." "ERROR"
CAN_BACKUP_SQL=false
fi
}
function _ListRecursiveBackupDirectoriesLocal {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
local directories
local directory
local retval
IFS=$PATH_SEPARATOR_CHAR read -r -a directories <<< "$RECURSIVE_DIRECTORY_LIST"
for directory in "${directories[@]}"; do
# No sudo here, assuming you should have all necessary rights for local checks
cmd="$FIND_CMD -L $directory/ -mindepth 1 -maxdepth 1 -type d >> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_FILE_TASK $HARD_MAX_EXEC_TIME_FILE_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Could not enumerate directories in [$directory]." "ERROR"
if [ -f $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
if [ -f $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
fi
retval=1
else
retval=0
fi
done
return $retval
}
function _ListRecursiveBackupDirectoriesRemote {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
local directories
local directory
local retval
IFS=$PATH_SEPARATOR_CHAR read -r -a directories <<< "$RECURSIVE_DIRECTORY_LIST"
for directory in "${directories[@]}"; do
#TODO(med): Uses local home directory for remote lookup...
cmd=$SSH_CMD' "'$COMMAND_SUDO' '$REMOTE_FIND_CMD' -L '$directory'/ -mindepth 1 -maxdepth 1 -type d" >> '$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID' 2> '$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_FILE_TASK $HARD_MAX_EXEC_TIME_FILE_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Could not enumerate directories in [$directory]." "ERROR"
if [ -f $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
if [ -f $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
fi
retval=1
else
retval=0
fi
done
return $retval
}
function ListRecursiveBackupDirectories {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local output_file
local file_exclude
local excluded
local fileArray
Logger "Listing directories to backup." "NOTICE"
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
_ListRecursiveBackupDirectoriesLocal
if [ $? != 0 ]; then
output_file=""
else
output_file="$RUN_DIR/$PROGRAM._ListRecursiveBackupDirectoriesLocal.$SCRIPT_PID"
fi
elif [ "$BACKUP_TYPE" == "pull" ]; then
_ListRecursiveBackupDirectoriesRemote
if [ $? != 0 ]; then
output_file=""
else
output_file="$RUN_DIR/$PROGRAM._ListRecursiveBackupDirectoriesRemote.$SCRIPT_PID"
fi
fi
if [ -f "$output_file" ]; then
while read -r line; do
file_exclude=0
IFS=$PATH_SEPARATOR_CHAR read -r -a fileArray <<< "$RECURSIVE_EXCLUDE_LIST"
for excluded in "${fileArray[@]}"; do
if [ "$excluded" == "$line" ]; then
file_exclude=1
fi
done
if [ $file_exclude -eq 0 ]; then
if [ "$FILE_RECURSIVE_BACKUP_TASKS" == "" ]; then
FILE_SIZE_LIST_LOCAL="\"$line\""
FILE_SIZE_LIST_REMOTE="\'$line\'"
FILE_RECURSIVE_BACKUP_TASKS="$line"
else
FILE_SIZE_LIST_LOCAL="$FILE_SIZE_LIST_LOCAL \"$line\""
FILE_SIZE_LIST_REMOTE="$FILE_SIZE_LIST_REMOTE \'$line\'"
FILE_RECURSIVE_BACKUP_TASKS="$FILE_RECURSIVE_BACKUP_TASKS$PATH_SEPARATOR_CHAR$line"
fi
else
FILE_RECURSIVE_EXCLUDED_TASKS="$FILE_RECURSIVE_EXCLUDED_TASKS$PATH_SEPARATOR_CHAR$line"
fi
done < "$output_file"
fi
IFS=$PATH_SEPARATOR_CHAR read -r -a fileArray <<< "$DIRECTORY_LIST"
for directory in "${fileArray[@]}"; do
if [ "$FILE_SIZE_LIST_LOCAL" == "" ]; then
FILE_SIZE_LIST_LOCAL="\"$directory\""
FILE_SIZE_LIST_REMOTE="\'$directory\'"
else
FILE_SIZE_LIST_LOCAL="$FILE_SIZE_LIST_LOCAL \"$directory\""
FILE_SIZE_LIST_REMOTE="$FILE_SIZE_LIST_REMOTE \'$directory\'"
fi
if [ "$FILE_BACKUP_TASKS" == "" ]; then
FILE_BACKUP_TASKS="$directory"
else
FILE_BACKUP_TASKS="$FILE_BACKUP_TASKS$PATH_SEPARATOR_CHAR$directory"
fi
done
}
function _GetDirectoriesSizeLocal {
local dir_list="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
# No sudo here, assuming you should have all the necessary rights
# This is not pretty, but works with all supported systems
cmd="du -cs $dir_list | tail -n1 | cut -f1 > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_FILE_TASK $HARD_MAX_EXEC_TIME_FILE_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
# $cmd will return 0 even if some errors found, so we need to check if there is an error output
if [ $? != 0 ] || [ -s $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID ]; then
Logger "Could not get files size for some or all directories." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID" ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
fi
else
Logger "File size fetched successfully." "NOTICE"
fi
if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
TOTAL_FILES_SIZE="$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)"
else
TOTAL_FILES_SIZE=-1
fi
}
function _GetDirectoriesSizeRemote {
local dir_list="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
# Error output is different from stdout because not all files in list may fail at once
cmd=$SSH_CMD' '$COMMAND_SUDO' du -cs '$dir_list' | tail -n1 | cut -f1 > '$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID' 2> '$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_FILE_TASK $HARD_MAX_EXEC_TIME_FILE_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
# $cmd will return 0 even if some errors found, so we need to check if there is an error output
if [ $? != 0 ] || [ -s $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID ]; then
Logger "Could not get files size for some or all directories." "ERROR"
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
if [ -f "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID" ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
fi
else
Logger "File size fetched successfully." "NOTICE"
fi
if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" ]; then
TOTAL_FILES_SIZE="$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)"
else
TOTAL_FILES_SIZE=-1
fi
}
function GetDirectoriesSize {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
Logger "Getting files size" "NOTICE"
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
if [ "$FILE_BACKUP" != "no" ]; then
_GetDirectoriesSizeLocal "$FILE_SIZE_LIST_LOCAL"
fi
elif [ "$BACKUP_TYPE" == "pull" ]; then
if [ "$FILE_BACKUP" != "no" ]; then
_GetDirectoriesSizeRemote "$FILE_SIZE_LIST_REMOTE"
fi
fi
}
function _CreateDirectoryLocal {
local dir_to_create="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ ! -d "$dir_to_create" ]; then
# No sudo, you should have all necessary rights
mkdir -p "$dir_to_create" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1
if [ $? != 0 ]; then
Logger "Cannot create directory [$dir_to_create]" "CRITICAL"
if [ -f $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID ]; then
Logger "Command output: $(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
fi
return 1
fi
fi
}
function _CreateDirectoryRemote {
local dir_to_create="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
cmd=$SSH_CMD' "if ! [ -d \"'$dir_to_create'\" ]; then '$COMMAND_SUDO' mkdir -p \"'$dir_to_create'\"; fi" > '$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID' 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 720 1800 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot create remote directory [$dir_to_create]." "CRITICAL"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
return 1
fi
}
function CreateStorageDirectories {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "pull" ]; then
if [ "$SQL_BACKUP" != "no" ]; then
_CreateDirectoryLocal "$SQL_STORAGE"
if [ $? != 0 ]; then
CAN_BACKUP_SQL=false
fi
fi
if [ "$FILE_BACKUP" != "no" ]; then
_CreateDirectoryLocal "$FILE_STORAGE"
if [ $? != 0 ]; then
CAN_BACKUP_FILES=false
fi
fi
elif [ "$BACKUP_TYPE" == "push" ]; then
if [ "$SQL_BACKUP" != "no" ]; then
_CreateDirectoryRemote "$SQL_STORAGE"
if [ $? != 0 ]; then
CAN_BACKUP_SQL=false
fi
fi
if [ "$FILE_BACKUP" != "no" ]; then
_CreateDirectoryRemote "$FILE_STORAGE"
if [ $? != 0 ]; then
CAN_BACKUP_FILES=false
fi
fi
fi
}
function GetDiskSpaceLocal {
# GLOBAL VARIABLE DISK_SPACE to pass variable to parent function
# GLOBAL VARIABLE DRIVE to pass variable to parent function
local path_to_check="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ -d "$path_to_check" ]; then
# Not elegant solution to make df silent on errors
# No sudo on local commands, assuming you should have all the necesarry rights to check backup directories sizes
df -P "$path_to_check" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
DISK_SPACE=0
Logger "Cannot get disk space in [$path_to_check] on local system." "ERROR"
Logger "Command Output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
else
DISK_SPACE=$(tail -1 "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | awk '{print $4}')
DRIVE=$(tail -1 "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | awk '{print $1}')
fi
else
Logger "Storage path [$path_to_check] does not exist." "CRITICAL"
return 1
fi
}
function GetDiskSpaceRemote {
# USE GLOBAL VARIABLE DISK_SPACE to pass variable to parent function
local path_to_check="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local cmd
cmd=$SSH_CMD' "if [ -d \"'$path_to_check'\" ]; then '$COMMAND_SUDO' df -P \"'$path_to_check'\"; else exit 1; fi" > "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID'" 2>&1'
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
DISK_SPACE=0
Logger "Cannot get disk space in [$path_to_check] on remote system." "ERROR"
Logger "Command Output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
return 1
else
DISK_SPACE=$(tail -1 "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | awk '{print $4}')
DRIVE=$(tail -1 "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" | awk '{print $1}')
fi
}
function CheckDiskSpace {
# USE OF GLOBAL VARIABLES TOTAL_DATABASES_SIZE, TOTAL_FILES_SIZE, BACKUP_SIZE_MINIMUM, STORAGE_WARN_SIZE, STORAGE_SPACE
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "pull" ]; then
if [ "$SQL_BACKUP" != "no" ]; then
GetDiskSpaceLocal "$SQL_STORAGE"
if [ $? != 0 ]; then
SQL_DISK_SPACE=0
CAN_BACKUP_SQL=false
else
SQL_DISK_SPACE=$DISK_SPACE
SQL_DRIVE=$DRIVE
fi
fi
if [ "$FILE_BACKUP" != "no" ]; then
GetDiskSpaceLocal "$FILE_STORAGE"
if [ $? != 0 ]; then
FILE_DISK_SPACE=0
CAN_BACKUP_FILES=false
else
FILE_DISK_SPACE=$DISK_SPACE
FILE_DRIVE=$DRIVE
fi
fi
elif [ "$BACKUP_TYPE" == "push" ]; then
if [ "$SQL_BACKUP" != "no" ]; then
GetDiskSpaceRemote "$SQL_STORAGE"
if [ $? != 0 ]; then
SQL_DISK_SPACE=0
else
SQL_DISK_SPACE=$DISK_SPACE
SQL_DRIVE=$DRIVE
fi
fi
if [ "$FILE_BACKUP" != "no" ]; then
GetDiskSpaceRemote "$FILE_STORAGE"
if [ $? != 0 ]; then
FILE_DISK_SPACE=0
else
FILE_DISK_SPACE=$DISK_SPACE
FILE_DRIVE=$DRIVE
fi
fi
fi
if [ "$TOTAL_DATABASES_SIZE" == "" ]; then
TOTAL_DATABASES_SIZE=-1
fi
if [ "$TOTAL_FILES_SIZE" == "" ]; then
TOTAL_FILES_SIZE=-1
fi
if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
if [ $SQL_DISK_SPACE -eq 0 ]; then
Logger "Storage space in [$SQL_STORAGE] reported to be 0Ko." "WARN"
fi
if [ $SQL_DISK_SPACE -lt $TOTAL_DATABASES_SIZE ]; then
Logger "Disk space in [$SQL_STORAGE] may be insufficient to backup SQL ($SQL_DISK_SPACE Ko available in $SQL_DRIVE) (non compressed databases calculation)." "WARN"
fi
if [ $SQL_DISK_SPACE -lt $SQL_WARN_MIN_SPACE ]; then
Logger "Disk space in [$SQL_STORAGE] is lower than warning value [$SQL_WARN_MIN_SPACE Ko]." "WARN"
fi
Logger "SQL storage Space: $SQL_DISK_SPACE Ko - Databases size: $TOTAL_DATABASES_SIZE Ko" "NOTICE"
fi
if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
if [ $FILE_DISK_SPACE -eq 0 ]; then
Logger "Storage space in [$FILE_STORAGE] reported to be 0 Ko." "WARN"
fi
if [ $FILE_DISK_SPACE -lt $TOTAL_FILES_SIZE ]; then
Logger "Disk space in [$FILE_STORAGE] may be insufficient to backup files ($FILE_DISK_SPACE Ko available in $FILE_DRIVE)." "WARN"
fi
if [ $FILE_DISK_SPACE -lt $FILE_WARN_MIN_SPACE ]; then
Logger "Disk space in [$FILE_STORAGE] is lower than warning value [$FILE_WARN_MIN_SPACE Ko]." "WARN"
fi
Logger "File storage space: $FILE_DISK_SPACE Ko - Files size: $TOTAL_FILES_SIZE Ko" "NOTICE"
fi
if [ $BACKUP_SIZE_MINIMUM -gt $(($TOTAL_DATABASES_SIZE+$TOTAL_FILES_SIZE)) ] && [ "$GET_BACKUP_SIZE" != "no" ]; then
Logger "Backup size is smaller than expected." "WARN"
fi
}
function _BackupDatabaseLocalToLocal {
local database="${1}" # Database to backup
local export_options="${2}" # export options
local dry_sql_cmd
local sql_cmd
local retval
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local dry_sql_cmd="mysqldump -u $SQL_USER $export_options --databases $database $COMPRESSION_PROGRAM $COMPRESSION_OPTIONS > /dev/null 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
local sql_cmd="mysqldump -u $SQL_USER $export_options --databases $database $COMPRESSION_PROGRAM $COMPRESSION_OPTIONS > $SQL_STORAGE/$database.sql$COMPRESSION_EXTENSION 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
if [ $_DRYRUN == false ]; then
Logger "cmd: $sql_cmd" "DEBUG"
eval "$sql_cmd" &
else
Logger "cmd: $dry_sql_cmd" "DEBUG"
eval "$dry_sql_cmd" &
fi
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
retval=$?
if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID" ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
# Dirty fix for mysqldump return code not honored
retval=1
fi
return $retval
}
function _BackupDatabaseLocalToRemote {
local database="${1}" # Database to backup
local export_options="${2}" # export options
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local dry_sql_cmd
local sql_cmd
local retval
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
local dry_sql_cmd="mysqldump -u $SQL_USER $export_options --databases $database $COMPRESSION_PROGRAM $COMPRESSION_OPTIONS > /dev/null 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
local sql_cmd="mysqldump -u $SQL_USER $export_options --databases $database $COMPRESSION_PROGRAM $COMPRESSION_OPTIONS | $SSH_CMD '$COMMAND_SUDO tee \"$SQL_STORAGE/$database.sql$COMPRESSION_EXTENSION\" > /dev/null' 2> $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID"
if [ $_DRYRUN == false ]; then
Logger "cmd: $sql_cmd" "DEBUG"
eval "$sql_cmd" &
else
Logger "cmd: $dry_sql_cmd" "DEBUG"
eval "$dry_sql_cmd" &
fi
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
retval=$?
if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID" ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
# Dirty fix for mysqldump return code not honored
retval=1
fi
return $retval
}
function _BackupDatabaseRemoteToLocal {
local database="${1}" # Database to backup
local export_options="${2}" # export options
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local dry_sql_cmd
local sql_cmd
local retval
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
local dry_sql_cmd=$SSH_CMD' "mysqldump -u '$SQL_USER' '$export_options' --databases '$database' '$COMPRESSION_PROGRAM' '$COMPRESSION_OPTIONS'" > /dev/null 2> "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID'"'
local sql_cmd=$SSH_CMD' "mysqldump -u '$SQL_USER' '$export_options' --databases '$database' '$COMPRESSION_PROGRAM' '$COMPRESSION_OPTIONS'" > "'$SQL_STORAGE/$database.sql$COMPRESSION_EXTENSION'" 2> "'$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID'"'
if [ $_DRYRUN == false ]; then
Logger "cmd: $sql_cmd" "DEBUG"
eval "$sql_cmd" &
else
Logger "cmd: $dry_sql_cmd" "DEBUG"
eval "$dry_sql_cmd" &
fi
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_DB_TASK $HARD_MAX_EXEC_TIME_DB_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
retval=$?
if [ -s "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID" ]; then
Logger "Error output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID)" "ERROR"
# Dirty fix for mysqldump return code not honored
retval=1
fi
return $retval
}
function BackupDatabase {
local database="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local mysql_options
# Hack to prevent warning on table mysql.events, some mysql versions don't support --skip-events, prefer using --ignore-table
if [ "$database" == "mysql" ]; then
mysql_options="$MYSQLDUMP_OPTIONS --ignore-table=mysql.event"
else
mysql_options="$MYSQLDUMP_OPTIONS"
fi
if [ "$BACKUP_TYPE" == "local" ]; then
_BackupDatabaseLocalToLocal "$database" "$mysql_options"
elif [ "$BACKUP_TYPE" == "pull" ]; then
_BackupDatabaseRemoteToLocal "$database" "$mysql_options"
elif [ "$BACKUP_TYPE" == "push" ]; then
_BackupDatabaseLocalToRemote "$database" "$mysql_options"
fi
if [ $? -ne 0 ]; then
Logger "Backup failed." "ERROR"
else
Logger "Backup succeeded." "NOTICE"
fi
}
function BackupDatabases {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local database
for database in $SQL_BACKUP_TASKS
do
Logger "Backing up database [$database]." "NOTICE"
BackupDatabase $database
CheckTotalExecutionTime
done
}
function PrepareEncryptFiles {
local tmpPath="${1}"
__CheckArguments 1 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "push" ]; then
_CreateDirectoryLocal "$tmpPath"
elif [ "$BACKUP_TYPE" == "pull" ]; then
Logger "Encryption only works with [local] or [push] backup types." "CRITICAL"
exit 1
fi
#WIP: check disk space in tmp dir and compare to backup size else error
}
#TODO: add ParallelExec here ? Also rework ParallelExec to use files or variables, vars are max 4M, if cannot be combined, create ParallelExecFromFile
function EncryptFiles {
local filePath="${1}" # Path of files to encrypt
local tmpPath="${2}" # Path to store encrypted files
local recipient="${3}" # GPG recipient
local recursive="${4:-true}" # Is recursive ?
__CheckArguments 4 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
#TOOD: move this to prior checks
PrepareEncryptFiles "$tmpPath"
local successCounter=0
local errorCounter=0
local cryptFileExtension="$CRYPT_FILE_EXTENSION"
local recursiveArgs=""
if [ ! -w "$tmpPath" ]; then
Logger "Cannot write to crypt storage path [$tmpPath]." "ERROR"
return 1
fi
if [ $recursive == false ]; then
recursiveArgs="-mindepth 1 -maxdepth 1"
fi
while IFS= read -r -d $'\0' sourceFile; do
path="$tmpPath/$(dirname "$sourceFile")"
path="${path%/}"
file="$(basename "$sourceFile")"
if [ ! -d "$path" ]; then
mkdir -p "$path"
fi
Logger "Encrypting file [$sourceFile] to [$path$/file$cryptFileExtension]." "VERBOSE"
$ENCRYPT_TOOL --batch --yes --out "$path/$file$cryptFileExtension" --recipient="$recipient" --encrypt "$sourceFile" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot encrypt [$sourceFile]." "ERROR"
Logger "Command output:\n$(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "VERBOSE"
errorCounter=$((errorCounter+1))
else
successCounter=$((successCounter+1))
Logger "Encrypted file [$file$cryptFileExtnesion]." "VERBOSE"
fi
done < <(find "$filePath" $recursiveArgs -type f -print0)
Logger "Encrypted [$successCounter] files successfully. Failed to encrypt [$errorCounter] files." "NOTICE"
return $errorCounter
}
function DecryptFiles {
local filePath="${1}" # Path to files to decrypt
local passphraseFile="${2}" # Passphrase file to decrypt files
local passphrase="${3}" # Passphrase to decrypt files
__CheckArguments 3 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local secret
local successCounter=0
local errorCounter=0
local cryptFileExtension="$CRYPT_FILE_EXTENSION"
if [ ! -w "$filePath" ]; then
Logger "Directory [$filePath] is not writable. Cannot decrypt files." "CRITICAL"
exit 1
fi
if [ -f "$passphraseFile" ]; then
secret="--passphrase-file $passphraseFile"
elif [ "$passphrase" != "" ]; then
secret="--passphrase $passphrase"
else
Logger "Invalid passphrase file or passphrase." "CRITICAL"
exit 1
fi
while IFS= read -r -d $'\0' encryptedFile; do
Logger "Decrypting [$encryptedFile]." "VERBOSE"
$ENCRYPT_TOOL --out "${encryptedFile%%$cryptFileExtension*}" --batch --yes $secret --decrypt "$encryptedFile" > "$RUN_DIR/$PROGRAM.$FUNCNAME.$SCRIPT_PID" 2>&1
if [ $? != 0 ]; then
Logger "Cannot decrypt [$encryptedFile]." "ERROR"
Logger "Command output\n$(cat $RUN_DIR/$PROGRAM.$FUNCNAME.$SCRIPT_PID)" "DEBUG"
errorCounter=$((errorCounter+1))
else
successCounter=$((successCounter+1))
rm -f "$encryptedFile"
if [ $? != 0 ]; then
Logger "Cannot delete original file [$encryptedFile] after decryption." "ERROR"
fi
fi
done < <(find "$filePath" -type f -iname "*$cryptFileExtension" -print0)
Logger "Decrypted [$successCounter] files successfully. Failed to decrypt [$errorCounter] files." "NOTICE"
return $errorCounter
}
function Rsync {
local backup_directory="${1}" # Which directory to backup
local Recursive="${2:-true}" # Backup only files at toplevel of directory
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local file_storage_path
local rsync_cmd
if [ "$KEEP_ABSOLUTE_PATHS" == "yes" ]; then
file_storage_path=$(dirname "$FILE_STORAGE/${backup_directory#/}")
else
file_storage_path="$FILE_STORAGE"
fi
## Manage to backup recursive directories lists files only (not recursing into subdirectories)
if [ $Recursive == false ]; then
# Fixes symlinks to directories in target cannot be deleted when backing up root directory without recursion, and excludes subdirectories
RSYNC_NO_RECURSE_ARGS=" -k --exclude=*/*/"
else
RSYNC_NO_RECURSE_ARGS=""
fi
# Creating subdirectories because rsync cannot handle multiple subdirectory creation
if [ "$BACKUP_TYPE" == "local" ]; then
_CreateDirectoryLocal "$file_storage_path"
rsync_cmd="$(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\" \"$backup_directory\" \"$file_storage_path\" > $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID 2>&1"
elif [ "$BACKUP_TYPE" == "pull" ]; then
_CreateDirectoryLocal "$file_storage_path"
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
backup_directory=$(EscapeSpaces "$backup_directory")
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"
elif [ "$BACKUP_TYPE" == "push" ]; then
file_storage_path=$(EscapeSpaces "$file_storage_path")
_CreateDirectoryRemote "$file_storage_path"
CheckConnectivity3rdPartyHosts
CheckConnectivityRemoteHost
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"
fi
Logger "cmd: $rsync_cmd" "DEBUG"
eval "$rsync_cmd" &
WaitForTaskCompletion $! $SOFT_MAX_EXEC_TIME_FILE_TASK $HARD_MAX_EXEC_TIME_FILE_TASK ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Failed to backup [$backup_directory] to [$file_storage_path]." "ERROR"
Logger "Command output:\n $(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
else
Logger "File backup succeed." "NOTICE"
fi
}
function FilesBackup {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local backupTask
local backupTasks
IFS=$PATH_SEPARATOR_CHAR read -r -a backupTasks <<< "$FILE_BACKUP_TASKS"
for backupTask in "${backupTasks[@]}"; do
Logger "Beginning file backup of [$backupTask]." "NOTICE"
if [ "$ENCRYPTION" == "yes" ]; then
EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" true
if [ $? == 0 ]; then
Rsync "$CRYPT_STORAGE" true
else
Logger "backup failed." "ERROR"
fi
else
Rsync "$backupTask" true
fi
CheckTotalExecutionTime
done
IFS=$PATH_SEPARATOR_CHAR read -r -a backupTasks <<< "$RECURSIVE_DIRECTORY_LIST"
for backupTask in "${backupTasks[@]}"; do
Logger "Beginning non recursive file backup of [$backupTask]." "NOTICE"
if [ "$ENCRYPTION" == "yes" ]; then
EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" false
if [ $? == 0 ]; then
Rsync "$CRYPT_STORAGE" false
else
Logger "backup failed." "ERROR"
fi
else
Rsync "$backupTask" false
fi
CheckTotalExecutionTime
done
IFS=$PATH_SEPARATOR_CHAR read -r -a backupTasks <<< "$FILE_RECURSIVE_BACKUP_TASKS"
for backupTask in "${backupTasks[@]}"; do
# Backup sub directories of recursive directories
Logger "Beginning recursive file backup of [$backupTask]." "NOTICE"
if [ "$ENCRYPTION" == "yes" ]; then
EncryptFiles "$backupTask" "$CRYPT_STORAGE" "$GPG_RECIPIENT" true
if [ $? == 0 ]; then
Rsync "$CRYPT_STORAGE" true
else
Logger "backup failed." "ERROR"
fi
else
Rsync "$backupTask" true
fi
CheckTotalExecutionTime
done
}
function CheckTotalExecutionTime {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
#### Check if max execution time of whole script as been reached
if [ $SECONDS -gt $SOFT_MAX_EXEC_TIME_TOTAL ]; then
Logger "Max soft execution time of the whole backup exceeded." "ERROR"
WARN_ALERT=1
SendAlert true
if [ $SECONDS -gt $HARD_MAX_EXEC_TIME_TOTAL ] && [ $HARD_MAX_EXEC_TIME_TOTAL -ne 0 ]; then
Logger "Max hard execution time of the whole backup exceeded, stopping backup process." "CRITICAL"
exit 1
fi
fi
}
function _RotateBackupsLocal {
local backup_path="${1}"
local rotate_copies="${2}"
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local backup
local copy
local cmd
local path
find "$backup_path" -mindepth 1 -maxdepth 1 ! -iname "*.$PROGRAM.*" -print0 | while IFS= read -r -d $'\0' backup; do
copy=$rotate_copies
while [ $copy -gt 1 ]; do
if [ $copy -eq $rotate_copies ]; then
path="$backup.$PROGRAM.$copy"
if [ -f "$path" ] || [ -d "$path" ]; then
cmd="rm -rf \"$path\""
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 3600 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot delete oldest copy [$path]." "ERROR"
fi
fi
fi
path="$backup.$PROGRAM.$(($copy-1))"
if [ -f "$path" ] || [ -d "$path" ]; then
cmd="mv \"$path\" \"$backup.$PROGRAM.$copy\""
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 3600 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot move [$path] to [$backup.$PROGRAM.$copy]." "ERROR"
fi
fi
copy=$(($copy-1))
done
# Latest file backup will not be moved if script configured for remote backup so next rsync execution will only do delta copy instead of full one
if [[ $backup == *.sql.* ]]; then
cmd="mv \"$backup\" \"$backup.$PROGRAM.1\""
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 3600 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot move [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
elif [ "$REMOTE_OPERATION" == "yes" ]; then
cmd="cp -R \"$backup\" \"$backup.$PROGRAM.1\""
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 3600 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot copy [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
else
cmd="mv \"$backup\" \"$backup.$PROGRAM.1\""
Logger "cmd: $cmd" "DEBUG"
eval "$cmd" &
WaitForTaskCompletion $! 3600 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Cannot move [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
fi
done
}
function _RotateBackupsRemote {
local backup_path="${1}"
local rotate_copies="${2}"
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
$SSH_CMD PROGRAM=$PROGRAM REMOTE_OPERATION=$REMOTE_OPERATION _DEBUG=$_DEBUG COMMAND_SUDO=$COMMAND_SUDO rotate_copies=$rotate_copies backup_path="$backup_path" 'bash -s' << 'ENDSSH' > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID" 2>&1 &
function _RemoteLogger {
local value="${1}" # What to log
echo -e "$value"
}
function RemoteLogger {
local value="${1}" # Sentence to log (in double quotes)
local level="${2}" # Log level: PARANOIA_DEBUG, DEBUG, NOTICE, WARN, ERROR, CRITIAL
prefix="REMOTE TIME: $SECONDS - "
if [ "$level" == "CRITICAL" ]; then
_RemoteLogger "$prefix\e[41m$value\e[0m"
return
elif [ "$level" == "ERROR" ]; then
_RemoteLogger "$prefix\e[91m$value\e[0m"
return
elif [ "$level" == "WARN" ]; then
_RemoteLogger "$prefix\e[93m$value\e[0m"
return
elif [ "$level" == "NOTICE" ]; then
_RemoteLogger "$prefix$value"
return
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == "yes" ]; then
_RemoteLogger "$prefix$value"
return
fi
elif [ "$level" == "PARANOIA_DEBUG" ]; then #__WITH_PARANOIA_DEBUG
if [ "$_PARANOIA_DEBUG" == "yes" ]; then #__WITH_PARANOIA_DEBUG
_RemoteLogger "$prefix$value" #__WITH_PARANOIA_DEBUG
return #__WITH_PARANOIA_DEBUG
fi #__WITH_PARANOIA_DEBUG
else
_RemoteLogger "\e[41mLogger function called without proper loglevel.\e[0m"
_RemoteLogger "$prefix$value"
fi
}
function _RotateBackupsRemoteSSH {
find "$backup_path" -mindepth 1 -maxdepth 1 ! -iname "*.$PROGRAM.*" -print0 | while IFS= read -r -d $'\0' backup; do
copy=$rotate_copies
while [ $copy -gt 1 ]; do
if [ $copy -eq $rotate_copies ]; then
path="$backup.$PROGRAM.$copy"
if [ -f "$path" ] || [ -d "$path" ]; then
cmd="$COMMAND_SUDO rm -rf \"$path\""
RemoteLogger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
RemoteLogger "Cannot delete oldest copy [$path]." "ERROR"
fi
fi
fi
path="$backup.$PROGRAM.$(($copy-1))"
if [ -f "$path" ] || [ -d "$path" ]; then
cmd="$COMMAND_SUDO mv \"$path\" \"$backup.$PROGRAM.$copy\""
RemoteLogger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
RemoteLogger "Cannot move [$path] to [$backup.$PROGRAM.$copy]." "ERROR"
fi
fi
copy=$(($copy-1))
done
# Latest file backup will not be moved if script configured for remote backup so next rsync execution will only do delta copy instead of full one
if [[ $backup == *.sql.* ]]; then
cmd="$COMMAND_SUDO mv \"$backup\" \"$backup.$PROGRAM.1\""
RemoteLogger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
RemoteLogger "Cannot move [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
elif [ "$REMOTE_OPERATION" == "yes" ]; then
cmd="$COMMAND_SUDO cp -R \"$backup\" \"$backup.$PROGRAM.1\""
RemoteLogger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
RemoteLogger "Cannot copy [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
else
cmd="$COMMAND_SUDO mv \"$backup\" \"$backup.$PROGRAM.1\""
RemoteLogger "cmd: $cmd" "DEBUG"
eval "$cmd"
if [ $? != 0 ]; then
RemoteLogger "Cannot move [$backup] to [$backup.$PROGRAM.1]." "ERROR"
fi
fi
done
}
_RotateBackupsRemoteSSH
ENDSSH
WaitForTaskCompletion $! 1800 0 ${FUNCNAME[0]} true $KEEP_LOGGING
if [ $? != 0 ]; then
Logger "Could not rotate backups in [$backup_path]." "ERROR"
Logger "Command output:\n $(cat $RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID)" "ERROR"
else
Logger "Remote rotation succeed." "NOTICE"
fi ## Need to add a trivial sleep time to give ssh time to log to local file
#sleep 5
}
function RotateBackups {
local backup_path="${1}"
local rotate_copies="${2}"
__CheckArguments 2 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
Logger "Rotating backups in [$backup_path] for [$rotate_copies] copies." "NOTICE"
if [ "$BACKUP_TYPE" == "local" ] || [ "$BACKUP_TYPE" == "pull" ]; then
_RotateBackupsLocal "$backup_path" "$rotate_copies"
elif [ "$BACKUP_TYPE" == "push" ]; then
_RotateBackupsRemote "$backup_path" "$rotate_copies"
fi
}
function SetTraps {
trap TrapStop INT QUIT TERM HUP
trap TrapQuit EXIT
}
function Init {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
local uri
local hosturiandpath
local hosturi
## Test if target dir is a ssh uri, and if yes, break it down it its values
if [ "${REMOTE_SYSTEM_URI:0:6}" == "ssh://" ] && [ "$BACKUP_TYPE" != "local" ]; then
REMOTE_OPERATION="yes"
# remove leadng 'ssh://'
uri=${REMOTE_SYSTEM_URI#ssh://*}
if [[ "$uri" == *"@"* ]]; then
# remove everything after '@'
REMOTE_USER=${uri%@*}
else
REMOTE_USER=$LOCAL_USER
fi
if [ "$SSH_RSA_PRIVATE_KEY" == "" ]; then
SSH_RSA_PRIVATE_KEY=~/.ssh/id_rsa
fi
# remove everything before '@'
hosturiandpath=${uri#*@}
# remove everything after first '/'
hosturi=${hosturiandpath%%/*}
if [[ "$hosturi" == *":"* ]]; then
REMOTE_PORT=${hosturi##*:}
else
REMOTE_PORT=22
fi
REMOTE_HOST=${hosturi%%:*}
fi
## Add update to default RSYNC_ARGS
RSYNC_ARGS=$RSYNC_ARGS" -u"
if [ $_VERBOSE == true ]; then
RSYNC_ARGS=$RSYNC_ARGS" -i"
fi
if [ "$DELETE_VANISHED_FILES" == "yes" ]; then
RSYNC_ARGS=$RSYNC_ARGS" --delete"
fi
if [ $stats == true ]; then
RSYNC_ARGS=$RSYNC_ARGS" --stats"
fi
## Fix for symlink to directories on target cannot get updated
RSYNC_ARGS=$RSYNC_ARGS" --force"
}
function Main {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
ListDatabases
fi
if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
ListRecursiveBackupDirectories
if [ "$GET_BACKUP_SIZE" != "no" ]; then
GetDirectoriesSize
else
TOTAL_FILES_SIZE=-1
fi
fi
# Expand ~ if exists
FILE_STORAGE="${FILE_STORAGE/#\~/$HOME}"
SQL_STORAGE="${SQL_STORAGE/#\~/$HOME}"
SSH_RSA_PRIVATE_KEY="${SSH_RSA_PRIVATE_KEY/#\~/$HOME}"
ENCRYPT_PUBKEY="${ENCRYPT_PUBKEY/#\~/$HOME}"
if [ "$CREATE_DIRS" != "no" ]; then
CreateStorageDirectories
fi
CheckDiskSpace
# Actual backup process
if [ "$SQL_BACKUP" != "no" ] && [ $CAN_BACKUP_SQL == true ]; then
if [ $_DRYRUN == false ] && [ "$ROTATE_SQL_BACKUPS" == "yes" ]; then
RotateBackups "$SQL_STORAGE" "$ROTATE_SQL_COPIES"
fi
BackupDatabases
fi
if [ "$FILE_BACKUP" != "no" ] && [ $CAN_BACKUP_FILES == true ]; then
if [ $_DRYRUN == false ] && [ "$ROTATE_FILE_BACKUPS" == "yes" ]; then
RotateBackups "$FILE_STORAGE" "$ROTATE_FILE_COPIES"
fi
## Add Rsync include / exclude patterns
RsyncPatterns
FilesBackup
fi
}
function Usage {
__CheckArguments 0 $# ${FUNCNAME[0]} "$@" #__WITH_PARANOIA_DEBUG
if [ "$IS_STABLE" != "yes" ]; then
echo -e "\e[93mThis is an unstable dev build. Please use with caution.\e[0m"
fi
echo "$PROGRAM $PROGRAM_VERSION $PROGRAM_BUILD"
echo "$AUTHOR"
echo "$CONTACT"
echo ""
echo "General usage: $0 /path/to/backup.conf [OPTIONS]"
echo ""
echo "OPTIONS:"
echo "--dry will run obackup without actually doing anything, just testing"
echo "--silent will run obackup without any output to stdout, usefull for cron backups"
echo "--verbose adds command outputs"
echo "--stats Adds rsync transfer statistics to verbose output"
echo "--partial Allows rsync to keep partial downloads that can be resumed later (experimental)"
echo "--no-maxtime disables any soft and hard execution time checks"
echo "--delete Deletes files on destination that vanished on source"
echo "--dontgetsize Does not try to evaluate backup size"
echo ""
echo "Batch processing usage:"
echo -e "\e[93mDecrypt\e[0m a backup encrypted with $PROGRAM"
echo "$0 --decrypt=/path/to/encrypted_backup --passphrase-file=/path/to/passphrase"
echo "$0 --decrypt=/path/to/encrypted_backup --passphrase=MySecretPassPhrase (security risk)"
echo ""
echo "Batch encrypt a directory in separate gpg files"
echo "$0 --encrypt=/path/to/files --destination=/path/to/encrypted/files --recipient=\"Your Name\""
exit 128
}
# Command line argument flags
_DRYRUN=false
_SILENT=false
no_maxtime=false
stats=false
PARTIAL=no
_DECRYPT_MODE=false
DECRYPT_PATH=""
_ENCRYPT_MODe=false
function GetCommandlineArguments {
if [ $# -eq 0 ]; then
Usage
fi
for i in "$@"; do
case $i in
--dry)
_DRYRUN=true
;;
--silent)
_SILENT=true
;;
--verbose)
_VERBOSE=true
;;
--stats)
stats=false
;;
--partial)
PARTIAL="yes"
;;
--no-maxtime)
no_maxtime=true
;;
--delete)
DELETE_VANISHED_FILES="yes"
;;
--dontgetsize)
GET_BACKUP_SIZE="no"
;;
--help|-h|--version|-v)
Usage
;;
--decrypt=*)
_DECRYPT_MODE=true
DECRYPT_PATH="${i##*=}"
;;
--passphrase=*)
PASSPHRASE="${i##*=}"
;;
--passphrase-file=*)
PASSPHRASE_FILE="${i##*=}"
;;
--encrypt=*)
_ENCRYPT_MODE=true
CRYPT_SOURCE="${i##*=}"
;;
--destination=*)
CRYPT_STORAGE="${i##*=}"
;;
--recipient=*)
GPG_RECIPIENT="${i##*=}"
;;
esac
done
}
SetTraps
GetCommandlineArguments "$@"
if [ "$_DECRYPT_MODE" == true ]; then
CheckCryptEnvironnment
DecryptFiles "$DECRYPT_PATH" "$PASSPHRASE_FILE" "$PASSPHRASE"
exit $?
fi
if [ "$_ENCRYPT_MODE" == true ]; then
CheckCryptEnvironnment
EncryptFiles "$CRYPT_SOURCE" "$CRYPT_STORAGE" "$GPG_RECIPIENT" true
exit $?
fi
LoadConfigFile "$1"
if [ "$LOGFILE" == "" ]; then
if [ -w /var/log ]; then
LOG_FILE="/var/log/$PROGRAM.$INSTANCE_ID.log"
elif ([ "${HOME}" != "" ] && [ -w "{$HOME}" ]); then
LOG_FILE="${HOME}/$PROGRAM.$INSTANCE_ID.log"
else
LOG_FILE=./$PROGRAM.$INSTANCE_ID.log
fi
else
LOG_FILE="$LOGFILE"
fi
if [ "$IS_STABLE" != "yes" ]; then
Logger "This is an unstable dev build. Please use with caution." "WARN"
fi
DATE=$(date)
Logger "--------------------------------------------------------------------" "NOTICE"
Logger "$DRY_WARNING $DATE - $PROGRAM v$PROGRAM_VERSION $BACKUP_TYPE script begin." "NOTICE"
Logger "--------------------------------------------------------------------" "NOTICE"
Logger "Backup instance [$INSTANCE_ID] launched as $LOCAL_USER@$LOCAL_HOST (PID $SCRIPT_PID)" "NOTICE"
GetLocalOS
InitLocalOSSettings
CheckEnvironment
CheckRunningInstances
PreInit
Init
PostInit
CheckCurrentConfig
if [ "$REMOTE_OPERATION" == "yes" ]; then
GetRemoteOS
InitRemoteOSSettings
fi
if [ $no_maxtime == true ]; then
SOFT_MAX_EXEC_TIME_DB_TASK=0
SOFT_MAX_EXEC_TIME_FILE_TASK=0
HARD_MAX_EXEC_TIME_DB_TASK=0
HARD_MAX_EXEC_TIME_FILE_TASK=0
HARD_MAX_EXEC_TIME_TOTAL=0
fi
RunBeforeHook
Main
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