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install.sh
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install.sh
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#!/usr/bin/env bash
## Installer script suitable for osync / obackup / pmocr
PROGRAM=obackup
PROGRAM_VERSION=$(grep "PROGRAM_VERSION=" $PROGRAM.sh)
PROGRAM_VERSION=${PROGRAM_VERSION#*=}
PROGRAM_BINARY=$PROGRAM".sh"
PROGRAM_BATCH=$PROGRAM"-batch.sh"
SSH_FILTER="ssh_filter.sh"
SCRIPT_BUILD=2020042901
INSTANCE_ID="installer-$SCRIPT_BUILD"
## osync / obackup / pmocr / zsnap install script
## Tested on RHEL / CentOS 6 & 7, Fedora 23, Debian 7 & 8, Mint 17 and FreeBSD 8, 10 and 11
## Please adapt this to fit your distro needs
_OFUNCTIONS_VERSION=2.3.0-RC4
_OFUNCTIONS_BUILD=2020050301
_OFUNCTIONS_BOOTSTRAP=true
if ! type "$BASH" > /dev/null; then
echo "Please run this script only with bash shell. Tested on bash >= 3.2"
exit 127
fi
## Correct output of sort command (language agnostic sorting)
export LC_ALL=C
## Default umask for file creation
umask 0077
# Standard alert mail body
MAIL_ALERT_MSG="Execution of $PROGRAM instance $INSTANCE_ID on $(date) has warnings/errors."
# Environment variables that can be overriden by programs
_DRYRUN=false
_LOGGER_SILENT=false
_LOGGER_VERBOSE=false
_LOGGER_ERR_ONLY=false
_LOGGER_PREFIX="date"
if [ "$KEEP_LOGGING" == "" ]; then
KEEP_LOGGING=1801
fi
# Initial error status, logging 'WARN', 'ERROR' or 'CRITICAL' will enable alerts flags
ERROR_ALERT=false
WARN_ALERT=false
## allow debugging from command line with _DEBUG=true
if [ ! "$_DEBUG" == true ]; then
_DEBUG=false
_LOGGER_VERBOSE=false
else
trap 'TrapError ${LINENO} $?' ERR
_LOGGER_VERBOSE=true
fi
if [ "$SLEEP_TIME" == "" ]; then # Leave the possibity to set SLEEP_TIME as environment variable when runinng with bash -x in order to avoid spamming console
SLEEP_TIME=.05
fi
# The variables SCRIPT_PID and TSTAMP needs to be declared as soon as the program begins. The function PoorMansRandomGenerator is needed for TSTAMP (since some systems date function does not give nanoseconds)
SCRIPT_PID=$$
# Get a random number of digits length on Windows BusyBox alike, also works on most Unixes that have dd
function PoorMansRandomGenerator {
local digits="${1}" # The number of digits to generate
local number
# Some read bytes can't be used, se we read twice the number of required bytes
dd if=/dev/urandom bs=$digits count=2 2> /dev/null | while read -r -n1 char; do
number=$number$(printf "%d" "'$char")
if [ ${#number} -ge $digits ]; then
echo ${number:0:$digits}
break;
fi
done
}
# Initial TSTMAP value before function declaration
TSTAMP=$(date '+%Y%m%dT%H%M%S').$(PoorMansRandomGenerator 5)
LOCAL_USER=$(whoami)
LOCAL_HOST=$(hostname)
if [ "$PROGRAM" == "" ]; then
PROGRAM="ofunctions"
fi
## Default log file until config file is loaded
if [ -w /var/log ]; then
LOG_FILE="/var/log/$PROGRAM.log"
elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
LOG_FILE="$HOME/$PROGRAM.log"
elif [ -w . ]; then
LOG_FILE="./$PROGRAM.log"
else
LOG_FILE="/tmp/$PROGRAM.log"
fi
## Default directory where to store temporary run files
if [ -w /tmp ]; then
RUN_DIR=/tmp
elif [ -w /var/tmp ]; then
RUN_DIR=/var/tmp
else
RUN_DIR=.
fi
## Special note when remote target is on the same host as initiator (happens for unit tests): we'll have to differentiate RUN_DIR so remote CleanUp won't affect initiator.
## If the same program gets remotely executed, add _REMOTE_EXECUTION=true to it's environment so it knows it has to write into a separate directory
## This will thus not affect local $RUN_DIR variables
if [ "$_REMOTE_EXECUTION" == true ]; then
mkdir -p "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP"
RUN_DIR="$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP"
fi
# Default alert attachment filename
ALERT_LOG_FILE="$RUN_DIR/$PROGRAM.$SCRIPT_PID.$TSTAMP.last.log"
# Set error exit code if a piped command fails
set -o pipefail
set -o errtrace
# Array to string converter, see http://stackoverflow.com/questions/1527049/bash-join-elements-of-an-array
# usage: joinString separaratorChar Array
function joinString {
local IFS="$1"; shift; echo "$*";
}
# Sub function of Logger
function _Logger {
local logValue="${1}" # Log to file
local stdValue="${2}" # Log to screeen
local toStdErr="${3:-false}" # Log to stderr instead of stdout
if [ "$logValue" != "" ]; then
echo -e "$logValue" >> "$LOG_FILE"
# Build current log file for alerts if we have a sufficient environment
if [ "$RUN_DIR/$PROGRAM" != "/" ]; then
echo -e "$logValue" >> "$RUN_DIR/$PROGRAM._Logger.$SCRIPT_PID.$TSTAMP"
fi
fi
if [ "$stdValue" != "" ] && [ "$_LOGGER_SILENT" != true ]; then
if [ $toStdErr == true ]; then
# Force stderr color in subshell
(>&2 echo -e "$stdValue")
else
echo -e "$stdValue"
fi
fi
}
# Remote logger similar to below Logger, without log to file and alert flags
function RemoteLogger {
local value="${1}" # Sentence to log (in double quotes)
local level="${2}" # Log level
local retval="${3:-undef}" # optional return value of command
local prefix
if [ "$_LOGGER_PREFIX" == "time" ]; then
prefix="RTIME: $SECONDS - "
elif [ "$_LOGGER_PREFIX" == "date" ]; then
prefix="R $(date) - "
else
prefix=""
fi
if [ "$level" == "CRITICAL" ]; then
_Logger "" "$prefix\e[1;33;41m$value\e[0m" true
if [ $_DEBUG == true ]; then
_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
fi
return
elif [ "$level" == "ERROR" ]; then
_Logger "" "$prefix\e[31m$value\e[0m" true
if [ $_DEBUG == true ]; then
_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
fi
return
elif [ "$level" == "WARN" ]; then
_Logger "" "$prefix\e[33m$value\e[0m" true
if [ $_DEBUG == true ]; then
_Logger -e "" "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$" true
fi
return
elif [ "$level" == "NOTICE" ]; then
if [ $_LOGGER_ERR_ONLY != true ]; then
_Logger "" "$prefix$value"
fi
return
elif [ "$level" == "VERBOSE" ]; then
if [ $_LOGGER_VERBOSE == true ]; then
_Logger "" "$prefix$value"
fi
return
elif [ "$level" == "ALWAYS" ]; then
_Logger "" "$prefix$value"
return
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == true ]; then
_Logger "" "$prefix$value"
return
fi
else
_Logger "" "\e[41mLogger function called without proper loglevel [$level].\e[0m" true
_Logger "" "Value was: $prefix$value" true
fi
}
# General log function with log levels:
# Environment variables
# _LOGGER_SILENT: Disables any output to stdout & stderr
# _LOGGER_ERR_ONLY: Disables any output to stdout except for ALWAYS loglevel
# _LOGGER_VERBOSE: Allows VERBOSE loglevel messages to be sent to stdout
# Loglevels
# Except for VERBOSE, all loglevels are ALWAYS sent to log file
# CRITICAL, ERROR, WARN sent to stderr, color depending on level, level also logged
# NOTICE sent to stdout
# VERBOSE sent to stdout if _LOGGER_VERBOSE=true
# ALWAYS is sent to stdout unless _LOGGER_SILENT=true
# DEBUG & PARANOIA_DEBUG are only sent to stdout if _DEBUG=true
function Logger {
local value="${1}" # Sentence to log (in double quotes)
local level="${2}" # Log level
local retval="${3:-undef}" # optional return value of command
local prefix
if [ "$_LOGGER_PREFIX" == "time" ]; then
prefix="TIME: $SECONDS - "
elif [ "$_LOGGER_PREFIX" == "date" ]; then
prefix="$(date '+%Y-%m-%d %H:%M:%S') - "
else
prefix=""
fi
## Obfuscate _REMOTE_TOKEN in logs (for ssh_filter usage only in osync and obackup)
value="${value/env _REMOTE_TOKEN=$_REMOTE_TOKEN/env _REMOTE_TOKEN=__o_O__}"
value="${value/env _REMOTE_TOKEN=\$_REMOTE_TOKEN/env _REMOTE_TOKEN=__o_O__}"
if [ "$level" == "CRITICAL" ]; then
_Logger "$prefix($level):$value" "$prefix\e[1;33;41m$value\e[0m" true
ERROR_ALERT=true
# ERROR_ALERT / WARN_ALERT is not set in main when Logger is called from a subprocess. Need to keep this flag.
echo -e "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$\n$prefix($level):$value" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID.$TSTAMP"
return
elif [ "$level" == "ERROR" ]; then
_Logger "$prefix($level):$value" "$prefix\e[91m$value\e[0m" true
ERROR_ALERT=true
echo -e "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$\n$prefix($level):$value" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.error.$SCRIPT_PID.$TSTAMP"
return
elif [ "$level" == "WARN" ]; then
_Logger "$prefix($level):$value" "$prefix\e[33m$value\e[0m" true
WARN_ALERT=true
echo -e "[$retval] in [$(joinString , ${FUNCNAME[@]})] SP=$SCRIPT_PID P=$$\n$prefix($level):$value" >> "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.warn.$SCRIPT_PID.$TSTAMP"
return
elif [ "$level" == "NOTICE" ]; then
if [ "$_LOGGER_ERR_ONLY" != true ]; then
_Logger "$prefix$value" "$prefix$value"
fi
return
elif [ "$level" == "VERBOSE" ]; then
if [ $_LOGGER_VERBOSE == true ]; then
_Logger "$prefix($level):$value" "$prefix$value"
fi
return
elif [ "$level" == "ALWAYS" ]; then
_Logger "$prefix$value" "$prefix$value"
return
elif [ "$level" == "DEBUG" ]; then
if [ "$_DEBUG" == true ]; then
_Logger "$prefix$value" "$prefix$value"
return
fi
else
_Logger "\e[41mLogger function called without proper loglevel [$level].\e[0m" "\e[41mLogger function called without proper loglevel [$level].\e[0m" true
_Logger "Value was: $prefix$value" "Value was: $prefix$value" true
fi
}
# Function is busybox compatible since busybox ash does not understand direct regex, we use expr
function IsInteger {
local value="${1}"
if type expr > /dev/null 2>&1; then
expr "$value" : '^[0-9]\{1,\}$' > /dev/null 2>&1
if [ $? -eq 0 ]; then
echo 1
else
echo 0
fi
else
if [[ $value =~ ^[0-9]+$ ]]; then
echo 1
else
echo 0
fi
fi
}
# Portable child (and grandchild) kill function tester under Linux, BSD and MacOS X
function KillChilds {
local pid="${1}" # Parent pid to kill childs
local self="${2:-false}" # Should parent be killed too ?
# Paranoid checks, we can safely assume that $pid should not be 0 nor 1
if [ $(IsInteger "$pid") -eq 0 ] || [ "$pid" == "" ] || [ "$pid" == "0" ] || [ "$pid" == "1" ]; then
Logger "Bogus pid given [$pid]." "CRITICAL"
return 1
fi
if kill -0 "$pid" > /dev/null 2>&1; then
if children="$(pgrep -P "$pid")"; then
if [[ "$pid" == *"$children"* ]]; then
Logger "Bogus pgrep implementation." "CRITICAL"
children="${children/$pid/}"
fi
for child in $children; do
KillChilds "$child" true
done
fi
fi
# Try to kill nicely, if not, wait 15 seconds to let Trap actions happen before killing
if [ "$self" == true ]; then
# We need to check for pid again because it may have disappeared after recursive function call
if kill -0 "$pid" > /dev/null 2>&1; then
kill -s TERM "$pid"
Logger "Sent SIGTERM to process [$pid]." "DEBUG"
if [ $? -ne 0 ]; then
sleep 15
Logger "Sending SIGTERM to process [$pid] failed." "DEBUG"
kill -9 "$pid"
if [ $? -ne 0 ]; then
Logger "Sending SIGKILL to process [$pid] failed." "DEBUG"
return 1
fi # Simplify the return 0 logic here
else
return 0
fi
else
return 0
fi
else
return 0
fi
}
function KillAllChilds {
local pids="${1}" # List of parent pids to kill separated by semi-colon
local self="${2:-false}" # Should parent be killed too ?
local errorcount=0
IFS=';' read -a pidsArray <<< "$pids"
for pid in "${pidsArray[@]}"; do
KillChilds $pid $self
if [ $? -ne 0 ]; then
errorcount=$((errorcount+1))
fi
done
return $errorcount
}
function GenericTrapQuit {
local exitcode=0
# Get ERROR / WARN alert flags from subprocesses that call Logger
if [ -f "$RUN_DIR/$PROGRAM.Logger.warn.$SCRIPT_PID.$TSTAMP" ]; then
WARN_ALERT=true
exitcode=2
fi
if [ -f "$RUN_DIR/$PROGRAM.Logger.error.$SCRIPT_PID.$TSTAMP" ]; then
ERROR_ALERT=true
exitcode=1
fi
CleanUp
exit $exitcode
}
#### TrapQuit SUBSET END ####
function CleanUp {
# Exit controlmaster before it's socket gets deleted
if [ "$SSH_CONTROLMASTER" == true ] && [ "$SSH_CMD" != "" ]; then
$SSH_CMD -O exit
fi
if [ "$_DEBUG" != true ]; then
# Removing optional remote $RUN_DIR that goes into local $RUN_DIR
if [ -d "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP" ]; then
rm -rf "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP"
fi
# Removing all temporary run files
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP"
# Fix for sed -i requiring backup extension for BSD & Mac (see all sed -i statements)
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP.tmp"
fi
}
# Get current install.sh path from http://stackoverflow.com/a/246128/2635443
SCRIPT_PATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
_LOGGER_SILENT=false
_STATS=1
ACTION="install"
FAKEROOT=""
## Default log file
if [ -w "$FAKEROOT/var/log" ]; then
LOG_FILE="$FAKEROOT/var/log/$PROGRAM-install.log"
elif ([ "$HOME" != "" ] && [ -w "$HOME" ]); then
LOG_FILE="$HOME/$PROGRAM-install.log"
else
LOG_FILE="./$PROGRAM-install.log"
fi
## Modified version of https://gist.github.com/cdown/1163649
function UrlEncode {
local length="${#1}"
local i
local LANG=C
for i in $(seq 0 $((length-1))); do
local c="${1:i:1}"
case $c in
[a-zA-Z0-9.~_-])
printf "$c"
;;
*)
printf '%%%02X' "'$c"
;;
esac
done
}
function GetLocalOS {
local localOsVar
local localOsName
local localOsVer
# There is no good way to tell if currently running in BusyBox shell. Using sluggish way.
if ls --help 2>&1 | grep -i "BusyBox" > /dev/null; then
localOsVar="BusyBox"
elif set -o | grep "winxp" > /dev/null; then
localOsVar="BusyBox-w32"
else
# Detecting the special ubuntu userland in Windows 10 bash
if grep -i Microsoft /proc/sys/kernel/osrelease > /dev/null 2>&1; then
localOsVar="Microsoft"
else
localOsVar="$(uname -spior 2>&1)"
if [ $? -ne 0 ]; then
localOsVar="$(uname -v 2>&1)"
if [ $? -ne 0 ]; then
localOsVar="$(uname)"
fi
fi
fi
fi
case $localOsVar in
# Android uname contains both linux and android, keep it before linux entry
*"Android"*)
LOCAL_OS="Android"
;;
*"Linux"*)
LOCAL_OS="Linux"
;;
*"BSD"*)
LOCAL_OS="BSD"
;;
*"MINGW32"*|*"MINGW64"*|*"MSYS"*)
LOCAL_OS="msys"
;;
*"CYGWIN"*)
LOCAL_OS="Cygwin"
;;
*"Microsoft"*|*"MS/Windows"*)
LOCAL_OS="WinNT10"
;;
*"Darwin"*)
LOCAL_OS="MacOSX"
;;
*"BusyBox"*)
LOCAL_OS="BusyBox"
;;
*)
if [ "$IGNORE_OS_TYPE" == true ]; then
Logger "Running on unknown local OS [$localOsVar]." "WARN"
return
fi
if [ "$_OFUNCTIONS_VERSION" != "" ]; then
Logger "Running on >> $localOsVar << not supported. Please report to the author." "ERROR"
fi
exit 1
;;
esac
# Get linux versions
if [ -f "/etc/os-release" ]; then
localOsName="$(GetConfFileValue "/etc/os-release" "NAME" true)"
localOsVer="$(GetConfFileValue "/etc/os-release" "VERSION" true)"
elif [ "$LOCAL_OS" == "BusyBox" ]; then
localOsVer="$(ls --help 2>&1 | head -1 | cut -f2 -d' ')"
localOsName="BusyBox"
fi
# Get Host info for Windows
if [ "$LOCAL_OS" == "msys" ] || [ "$LOCAL_OS" == "BusyBox" ] || [ "$LOCAL_OS" == "Cygwin" ] || [ "$LOCAL_OS" == "WinNT10" ]; then
localOsVar="$localOsVar $(uname -a)"
if [ "$PROGRAMW6432" != "" ]; then
LOCAL_OS_BITNESS=64
LOCAL_OS_FAMILY="Windows"
elif [ "$PROGRAMFILES" != "" ]; then
LOCAL_OS_BITNESS=32
LOCAL_OS_FAMILY="Windows"
# Case where running on BusyBox but no program files defined
elif [ "$LOCAL_OS" == "BusyBox" ]; then
LOCAL_OS_FAMILY="Unix"
fi
# Get Host info for Unix
else
LOCAL_OS_FAMILY="Unix"
fi
if [ "$LOCAL_OS_FAMILY" == "Unix" ]; then
if uname -m | grep '64' > /dev/null 2>&1; then
LOCAL_OS_BITNESS=64
else
LOCAL_OS_BITNESS=32
fi
fi
LOCAL_OS_FULL="$localOsVar ($localOsName $localOsVer) $LOCAL_OS_BITNESS-bit $LOCAL_OS_FAMILY"
if [ "$_OFUNCTIONS_VERSION" != "" ]; then
Logger "Local OS: [$LOCAL_OS_FULL]." "DEBUG"
fi
}
function GetConfFileValue () {
local file="${1}"
local name="${2}"
local noError="${3:-false}"
local value
value=$(grep "^$name=" "$file")
if [ $? -eq 0 ]; then
value="${value##*=}"
echo "$value"
else
if [ $noError == true ]; then
Logger "Cannot get value for [$name] in config file [$file]." "NOTICE"
else
Logger "Cannot get value for [$name] in config file [$file]." "ERROR"
fi
fi
}
function CleanUp {
# Exit controlmaster before it's socket gets deleted
if [ "$SSH_CONTROLMASTER" == true ] && [ "$SSH_CMD" != "" ]; then
$SSH_CMD -O exit
fi
if [ "$_DEBUG" != true ]; then
# Removing optional remote $RUN_DIR that goes into local $RUN_DIR
if [ -d "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP" ]; then
rm -rf "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP"
fi
# Removing all temporary run files
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP"
# Fix for sed -i requiring backup extension for BSD & Mac (see all sed -i statements)
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP.tmp"
fi
}
function GenericTrapQuit {
local exitcode=0
# Get ERROR / WARN alert flags from subprocesses that call Logger
if [ -f "$RUN_DIR/$PROGRAM.Logger.warn.$SCRIPT_PID.$TSTAMP" ]; then
WARN_ALERT=true
exitcode=2
fi
if [ -f "$RUN_DIR/$PROGRAM.Logger.error.$SCRIPT_PID.$TSTAMP" ]; then
ERROR_ALERT=true
exitcode=1
fi
CleanUp
exit $exitcode
}
#### TrapQuit SUBSET END ####
#### CleanUp SUBSET ####
function CleanUp {
# Exit controlmaster before it's socket gets deleted
if [ "$SSH_CONTROLMASTER" == true ] && [ "$SSH_CMD" != "" ]; then
$SSH_CMD -O exit
fi
if [ "$_DEBUG" != true ]; then
# Removing optional remote $RUN_DIR that goes into local $RUN_DIR
if [ -d "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP" ]; then
rm -rf "$RUN_DIR/$PROGRAM.remote.$SCRIPT_PID.$TSTAMP"
fi
# Removing all temporary run files
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP"
# Fix for sed -i requiring backup extension for BSD & Mac (see all sed -i statements)
rm -f "$RUN_DIR/$PROGRAM."*".$SCRIPT_PID.$TSTAMP.tmp"
fi
}
#### CleanUp SUBSET END ####
#### OFUNCTIONS MICRO SUBSET END ####
# osync/obackup/pmocr script specific mail alert function, use SendEmail function for generic mail sending
function SendAlert {
local runAlert="${1:-false}" # Specifies if current message is sent while running or at the end of a run
local attachment="${2:-true}" # Should we send the log file as attachment
local attachmentFile
local subject
local body
if [ "$DESTINATION_MAILS" == "" ]; then
return 0
fi
if [ "$_DEBUG" == true ]; then
Logger "Debug mode, no warning mail will be sent." "NOTICE"
return 0
fi
if [ $attachment == true ]; then
attachmentFile="$LOG_FILE"
if type "$COMPRESSION_PROGRAM" > /dev/null 2>&1; then
eval "cat \"$LOG_FILE\" \"$COMPRESSION_PROGRAM\" > \"$ALERT_LOG_FILE\""
if [ $? -eq 0 ]; then
attachmentFile="$ALERT_LOG_FILE"
fi
fi
fi
body="$MAIL_ALERT_MSG"$'\n\n'"Last 1000 lines of current log"$'\n\n'"$(tail -n 1000 "$RUN_DIR/$PROGRAM._Logger.$SCRIPT_PID.$TSTAMP")"
if [ $ERROR_ALERT == true ]; then
subject="Error alert for $INSTANCE_ID"
elif [ $WARN_ALERT == true ]; then
subject="Warning alert for $INSTANCE_ID"
else
subject="Alert for $INSTANCE_ID"
fi
if [ $runAlert == true ]; then
subject="Currently runing - $subject"
else
subject="Finished run - $subject"
fi
SendEmail "$subject" "$body" "$DESTINATION_MAILS" "$attachmentFile" "$SENDER_MAIL" "$SMTP_SERVER" "$SMTP_PORT" "$SMTP_ENCRYPTION" "$SMTP_USER" "$SMTP_PASSWORD"
# Delete tmp log file
if [ "$attachment" == true ]; then
if [ -f "$ALERT_LOG_FILE" ]; then
rm -f "$ALERT_LOG_FILE"
fi
fi
}
# Generic email sending function.
# Usage (linux / BSD), attachment is optional, can be "/path/to/my.file" or ""
# SendEmail "subject" "Body text" "[email protected] [email protected]" "/path/to/attachment.file"
# Usage (Windows, make sure you have mailsend.exe in executable path, see http://github.com/muquit/mailsend)
# attachment is optional but must be in windows format like "c:\\some\path\\my.file", or ""
# smtp_server.domain.tld is mandatory, as is smtpPort (should be 25, 465 or 587)
# encryption can be set to tls, ssl or none
# smtpUser and smtpPassword are optional
# SendEmail "subject" "Body text" "[email protected] [email protected]" "/path/to/attachment.file" "[email protected]" "smtpServer.domain.tld" "smtpPort" "encryption" "smtpUser" "smtpPassword"
# If text is received as attachment ATT00001.bin or noname, consider adding the following to /etc/mail.rc
#set ttycharset=iso-8859-1
#set sendcharsets=iso-8859-1
#set encoding=8bit
function SendEmail {
local subject="${1}"
local message="${2}"
local destinationMails="${3}"
local attachment="${4}"
local senderMail="${5}"
local smtpServer="${6}"
local smtpPort="${7}"
local encryption="${8}"
local smtpUser="${9}"
local smtpPassword="${10}"
local mail_no_attachment=
local attachment_command=
local encryption_string=
local auth_string=
local i
if [ "${destinationMails}" != "" ]; then
for i in "${destinationMails[@]}"; do
if [ $(CheckRFC822 "$i") -ne 1 ]; then
Logger "Given email [$i] does not seem to be valid." "WARN"
fi
done
else
Logger "No valid email addresses given." "WARN"
return 1
fi
# Prior to sending an email, convert its body if needed
if [ "$MAIL_BODY_CHARSET" != "" ]; then
if type iconv > /dev/null 2>&1; then
echo "$message" | iconv -f UTF-8 -t $MAIL_BODY_CHARSET -o "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.iconv.$SCRIPT_PID.$TSTAMP"
message="$(cat "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.iconv.$SCRIPT_PID.$TSTAMP")"
else
Logger "iconv utility not installed. Will not convert email charset." "NOTICE"
fi
fi
if [ ! -f "$attachment" ]; then
attachment_command="-a $attachment"
mail_no_attachment=1
else
mail_no_attachment=0
fi
if [ "$LOCAL_OS" == "Busybox" ] || [ "$LOCAL_OS" == "Android" ]; then
if [ "$smtpPort" == "" ]; then
Logger "Missing smtp port, assuming 25." "WARN"
smtpPort=25
fi
if type sendmail > /dev/null 2>&1; then
if [ "$encryption" == "tls" ]; then
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) -f "$senderMail" -H "exec openssl s_client -quiet -tls1_2 -starttls smtp -connect $smtpServer:$smtpPort" -au"$smtpUser" -ap"$smtpPassword" "$destinationMails"
elif [ "$encryption" == "ssl" ]; then
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) -f "$senderMail" -H "exec openssl s_client -quiet -connect $smtpServer:$smtpPort" -au"$smtpUser" -ap"$smtpPassword" "$destinationMails"
elif [ "$encryption" == "none" ]; then
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) -f "$senderMail" -S "$smtpServer:$smtpPort" -au"$smtpUser" -ap"$smtpPassword" "$destinationMails"
else
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) -f "$senderMail" -S "$smtpServer:$smtpPort" -au"$smtpUser" -ap"$smtpPassword" "$destinationMails"
Logger "Bogus email encryption used [$encryption]." "WARN"
fi
if [ $? -ne 0 ]; then
Logger "Cannot send alert mail via $(type -p sendmail) !!!" "WARN"
# Do not bother try other mail systems with busybox
return 1
else
return 0
fi
else
Logger "Sendmail not present. Will not send any mail" "WARN"
return 1
fi
fi
if type mutt > /dev/null 2>&1 ; then
# We need to replace spaces with comma in order for mutt to be able to process multiple destinations
echo "$message" | $(type -p mutt) -x -s "$subject" "${destinationMails// /,}" $attachment_command
if [ $? -ne 0 ]; then
Logger "Cannot send mail via $(type -p mutt) !!!" "WARN"
else
Logger "Sent mail using mutt." "NOTICE"
return 0
fi
fi
if type mail > /dev/null 2>&1 ; then
# We need to detect which version of mail is installed
if ! $(type -p mail) -V > /dev/null 2>&1; then
# This may be MacOS mail program
attachment_command=""
elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V | grep "GNU" > /dev/null; then
attachment_command="-A $attachment"
elif [ "$mail_no_attachment" -eq 0 ] && $(type -p mail) -V > /dev/null; then
attachment_command="-a$attachment"
else
attachment_command=""
fi
echo "$message" | $(type -p mail) $attachment_command -s "$subject" "$destinationMails"
if [ $? -ne 0 ]; then
Logger "Cannot send mail via $(type -p mail) with attachments !!!" "WARN"
echo "$message" | $(type -p mail) -s "$subject" "$destinationMails"
if [ $? -ne 0 ]; then
Logger "Cannot send mail via $(type -p mail) without attachments !!!" "WARN"
else
Logger "Sent mail using mail command without attachment." "NOTICE"
return 0
fi
else
Logger "Sent mail using mail command." "NOTICE"
return 0
fi
fi
if type sendmail > /dev/null 2>&1 ; then
echo -e "Subject:$subject\r\n$message" | $(type -p sendmail) "$destinationMails"
if [ $? -ne 0 ]; then
Logger "Cannot send mail via $(type -p sendmail) !!!" "WARN"
else
Logger "Sent mail using sendmail command without attachment." "NOTICE"
return 0
fi
fi
# Windows specific
if type "mailsend.exe" > /dev/null 2>&1 ; then
if [ "$senderMail" == "" ]; then
Logger "Missing sender email." "ERROR"
return 1
fi
if [ "$smtpServer" == "" ]; then
Logger "Missing smtp port." "ERROR"
return 1
fi
if [ "$smtpPort" == "" ]; then
Logger "Missing smtp port, assuming 25." "WARN"
smtpPort=25
fi
if [ "$encryption" != "tls" ] && [ "$encryption" != "ssl" ] && [ "$encryption" != "none" ]; then
Logger "Bogus smtp encryption, assuming none." "WARN"
encryption_string=
elif [ "$encryption" == "tls" ]; then
encryption_string=-starttls
elif [ "$encryption" == "ssl" ]:; then
encryption_string=-ssl
fi
if [ "$smtpUser" != "" ] && [ "$smtpPassword" != "" ]; then
auth_string="-auth -user \"$smtpUser\" -pass \"$smtpPassword\""
fi
$(type mailsend.exe) -f "$senderMail" -t "$destinationMails" -sub "$subject" -M "$message" -attach "$attachment" -smtp "$smtpServer" -port "$smtpPort" $encryption_string $auth_string
if [ $? -ne 0 ]; then
Logger "Cannot send mail via $(type mailsend.exe) !!!" "WARN"
else
Logger "Sent mail using mailsend.exe command with attachment." "NOTICE"
return 0
fi
fi
# pfSense specific
if [ -f /usr/local/bin/mail.php ]; then
echo "$message" | /usr/local/bin/mail.php -s="$subject"
if [ $? -ne 0 ]; then
Logger "Cannot send mail via /usr/local/bin/mail.php (pfsense) !!!" "WARN"
else
Logger "Sent mail using pfSense mail.php." "NOTICE"
return 0
fi
fi
# If function has not returned 0 yet, assume it is critical that no alert can be sent
Logger "Cannot send mail (neither mutt, mail, sendmail, sendemail, mailsend (windows) or pfSense mail.php could be used)." "ERROR" # Is not marked critical because execution must continue
}
#### TrapError SUBSET ####
function TrapError {
local job="$0"
local line="$1"
local code="${2:-1}"
if [ $_LOGGER_SILENT == false ]; then
(>&2 echo -e "\e[45m/!\ ERROR in ${job}: Near line ${line}, exit code ${code}\e[0m")
fi
}
#### TrapError SUBSET END ####
function LoadConfigFile {
local configFile="${1}"
local revisionRequired="${2}"
local revisionPresent
if [ ! -f "$configFile" ]; then
Logger "Cannot load configuration file [$configFile]. Cannot start." "CRITICAL"
exit 1
elif [[ "$configFile" != *".conf" ]]; then
Logger "Wrong configuration file supplied [$configFile]. Cannot start." "CRITICAL"
exit 1
else
revisionPresent="$(GetConfFileValue "$configFile" "CONFIG_FILE_REVISION" true)"
if [ "$(IsNumeric "${revisionPresent%%.*}")" -eq 0 ]; then
Logger "Missing CONFIG_FILE_REVISION. Please provide a valid config file, or run the config update script." "WARN"
Logger "CONFIG_FILE_REVISION does not seem numeric [$revisionPresent]." "DEBUG"
elif [ "$revisionRequired" != "" ]; then
if [ $(VerComp "$revisionPresent" "$revisionRequired") -eq 2 ]; then
Logger "Configuration file seems out of date. Required version [$revisionRequired]. Actual version [$revisionPresent]." "CRITICAL"
exit 1
fi
fi
# Remove everything that is not a variable assignation
grep '^[^ ]*=[^;&]*' "$configFile" > "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP"
source "$RUN_DIR/$PROGRAM.${FUNCNAME[0]}.$SCRIPT_PID.$TSTAMP"
fi
CONFIG_FILE="$configFile"
}
# Quick and dirty performance logger only used for debugging
_OFUNCTIONS_SPINNER="|/-\\"
function Spinner {
if [ $_LOGGER_SILENT == true ] || [ "$_LOGGER_ERR_ONLY" == true ] || [ "$_SYNC_ON_CHANGES" == "initiator" ] || [ "$_SYNC_ON_CHANGES" == "target" ] ; then
return 0
else
printf " [%c] \b\b\b\b\b\b" "$_OFUNCTIONS_SPINNER"
_OFUNCTIONS_SPINNER=${_OFUNCTIONS_SPINNER#?}${_OFUNCTIONS_SPINNER%%???}
return 0
fi
}
# WaitForTaskCompletion function emulation, now uses ExecTasks
function WaitForTaskCompletion {
local pids="${1}"
local softMaxTime="${2:-0}"
local hardMaxTime="${3:-0}"
local sleepTime="${4:-.05}"
local keepLogging="${5:-0}"
local counting="${6:-true}"
local spinner="${7:-true}"
local noErrorLog="${8:-false}"
local id="${9-base}"
ExecTasks "$pids" "$id" false 0 0 "$softMaxTime" "$hardMaxTime" "$counting" "$sleepTime" "$keepLogging" "$spinner" "$noErrorlog"
}
# ParallelExec function emulation, now uses ExecTasks
function ParallelExec {
local numberOfProcesses="${1}"
local commandsArg="${2}"
local readFromFile="${3:-false}"
local softMaxTime="${4:-0}"
local hardMaxTime="${5:-0}"
local sleepTime="${6:-.05}"
local keepLogging="${7:-0}"
local counting="${8:-true}"
local spinner="${9:-false}"
local noErrorLog="${10:-false}"
if [ $readFromFile == true ]; then
ExecTasks "$commandsArg" "base" $readFromFile 0 0 "$softMaxTime" "$hardMaxTime" "$counting" "$sleepTime" "$keepLogging" "$spinner" "$noErrorLog" false "$numberOfProcesses"
else
ExecTasks "$commandsArg" "base" $readFromFile 0 0 "$softMaxTime" "$hardMaxTime" "$counting" "$sleepTime" "$keepLogging" "$spinner" "$noErrorLog" false "$numberOfProcesses"
fi
}
## Main asynchronous execution function
## Function can work in:
## WaitForTaskCompletion mode: monitors given pid in background, and stops them if max execution time is reached. Suitable for multiple synchronous pids to monitor and wait for
## ParallExec mode: takes list of commands to execute in parallel per batch, and stops them if max execution time is reahed.
## Example of improved wait $!
## ExecTasks $! "some_identifier" false 0 0 0 0 true 1 1800 false
## Example: monitor two sleep processes, warn if execution time is higher than 10 seconds, stop after 20 seconds
## sleep 15 &
## pid=$!
## sleep 20 &
## pid2=$!
## ExecTasks "some_identifier" 0 0 10 20 1 1800 true true false false 1 "$pid;$pid2"
## Example of parallel execution of four commands, only if directories exist. Warn if execution takes more than 300 seconds. Stop if takes longer than 900 seconds. Exeute max 3 commands in parallel.
## commands="du -csh /var;du -csh /etc;du -csh /home;du -csh /usr"
## conditions="[ -d /var ];[ -d /etc ];[ -d /home];[ -d /usr]"
## ExecTasks "$commands" "some_identifier" false 0 0 300 900 true 1 1800 true false false 3 "$conditions"
## Bear in mind that given commands and conditions need to be quoted