X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/blobdiff_plain/6cbe7c0a7676ceb597d517210d098a372c9ccefd..ef3c23a1b64a4aa1e3ba1cfa6b5e3650046aec86:/exec/bklog?ds=inline diff --git a/exec/bklog b/exec/bklog index 4d75249..e0bb57f 100644 --- a/exec/bklog +++ b/exec/bklog @@ -1,38 +1,1499 @@ #!/bin/bash # Desc: Compresses, encrypts, and writes stdin every 5 seconds +#==BEGIN Define script parameters== +#===BEGIN Initialize variables=== + +# Logging Behavior parameters +bufferTTL="300"; # Time-to-live (seconds) for each buffer round +scriptTTL_TE="day"; # Time element at the end of which script terminates +dirTmpDefault="/dev/shm"; # Default parent of working directory + +# Script Metadata +scriptName="bklog"; # Define basename of script file. +scriptVersion="0.1.30"; # Define version of script. +scriptURL="https://gitlab.com/baltakatei/ninfacyzga-01"; # Define website hosting this script. +scriptTimeStartEpoch="$(date +%s)"; # Save start time of script in epoch seconds +scriptTimeStart="$(date +%Y%m%dT%H%M%S.%N)"; # YYYYmmddTHHMMSS.NNNNNNNNN +scriptHostname=$(hostname); # Save hostname of system running this script. +PATH="$HOME/.local/bin:$PATH"; # Add "$(systemd-path user-binaries)" path in case user apps saved there +ageVersion="1.0.0-beta2"; # Define version of age (encryption program) +ageURL="https://github.com/FiloSottile/age/releases/tag/v1.0.0-beta2"; # Define website hosting age. + +# Arrays +declare -a buffer # array for storing while read buffer +declare -a argRecPubKeys # array for processArguments function +declare -a recPubKeysValid # array for storing both '-r' and '-R' recipient pubkeys +declare -a argProcStrings argProcFileExts # for storing buffer processing strings (ex: "gpsbabel -i nmea -f - -o gpx -F - ") +declare -Ag appRollCall # Associative array for storing app status +declare -Ag fileRollCall # Associative array for storing file status +declare -Ag dirRollCall # Associative array for storing dir status +declare -a procStrings procFileExts # Arrays for storing processing commands and resulting output file extensions + +# Variables +optionVerbose=""; optionEncrypt=""; dirOut=""; optionEncrypt=""; dir_tmp=""; +cmd_compress="";cmd_compress_suffix=""; cmd_encrypt=""; cmd_encrypt_suffix=""; + +#===END Initialize variables=== + +#===BEGIN Declare local script functions=== yell() { echo "$0: $*" >&2; } #o Yell, Die, Try Three-Fingered Claw technique die() { yell "$*"; exit 111; } #o Ref/Attrib: https://stackoverflow.com/a/25515370 try() { "$@" || die "cannot $*"; } #o -declare -a buffer # Initialize buffer array -scriptTTL="15"; -bufferTTL="5"; -magicWriteBuffer() { - printf "%s\n" "${buffer[@]}" | cat | cat | cat >> /dev/shm/$(date +%s)..bkFreqWrite-output1.txt; - printf "%s\n" "${buffer[@]}" | cat | cat | cat >> /dev/shm/$(date +%s)..bkFreqWrite-output2.txt; - printf "%s\n" "${buffer[@]}" | cat | cat | cat >> /dev/shm/$(date +%s)..bkFreqWrite-output3.txt; -} - -bufferRound=0; -# Run until script TTL seconds pass -while [[ $SECONDS -lt "scriptTTL" ]]; do - bufferTOD="$((SECONDS + $bufferTTL))"; - lineCount=0; - # Consume stdin to fill buffer until buffer time-of-death (TOD) arrives - while read -r -t "$bufferTTL" line && [[ $SECONDS -lt "$bufferTOD" ]]; do - # Append line to buffer array - buffer+=("$line"); - echo "DEBUG:Processing line:$lineCount"; - echo "DEBUG:Current line :$line"; - echo "DEBUG:buf elem count :${#buffer[@]}"; - ((lineCount++)); - done; - # Export buffer to asynchronous processing. - magicWriteBuffer & - unset buffer; # Clear buffer array for next bufferRound - # Increment buffer round - ((bufferRound++)); -done; - -# Author: Steven Baltakatei Sandoval +processArguments() { + while [ ! $# -eq 0 ]; do # While number of arguments ($#) is not (!) equal to (-eq) zero (0). + case "$1" in + -v | --verbose) optionVerbose="true"; vbm "DEBUG :Verbose mode enabled.";; # Enable verbose mode. + -h | --help) showUsage; exit 1;; # Display usage. + --version) showVersion; exit 1;; # Show version + -o | --output) if [ -d "$2" ]; then dirOut="$2"; vbm "DEBUG :dirOut:$dirOut"; shift; fi ;; # Define output directory. + -e | --encrypt) optionEncrypt="true"; vbm "DEBUG :Encrypted output mode enabled.";; # Enable encryption + -r | --recipient) optionRecArg="true"; argRecPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;; # Add recipients + -R | --recipient-dir) optionRecDir="true" && argRecDir="$2"; shift;; # Add recipient watch dir + -c | --compress) optionCompress="true"; vbm "DEBUG :Compressed output mode enabled.";; # Enable compression + -z | --time-zone) try setTimeZoneEV "$2"; shift;; # Set timestamp timezone + -t | --temp-dir) optionTmpDir="true" && argTempDirPriority="$2"; shift;; # Set time zone + -b | --buffer-ttl) optionCustomBufferTTL="true" && argCustomBufferTTL="$2"; shift;; # Set custom buffer period (default: 300 seconds) + -B | --script-ttl) optionCustomScriptTTL_TE="true" && argCustomScriptTTL_TE="$2"; shift;; # Set custom script TTL (default: "day") + -p | --process-string) optionProcString="true" && argProcStrings+=("$2") && argProcFileExts+=("$3") && vbm "STATUS:file extension \"$3\" for output of processing string added:\"$2\""; shift; shift;; + -l | --label) optionLabel="true" && argLabel="$2"; vbm "DEBUG :Custom label received:$argLabel"; shift;; + -w | --store-raw) optionStoreRaw="true" && argRawFileExt="$2"; vbm "DEBUG :Raw stdin file extension received:$argRawFileExt"; shift;; + -W | --no-store-raw) optionNoStoreRaw="true"; vbm "DEBUG :Option selected to not store raw stdin data."; shift;; + *) yell "ERROR: Unrecognized argument: $1"; yell "STATUS:All arguments:$*"; exit 1;; # Handle unrecognized options. + esac + shift + done +} # Argument Processing +vbm() { + # Description: Prints verbose message ("vbm") to stderr if optionVerbose is set to "true". + # Usage: vbm "DEBUG :verbose message here" + # Version 0.1.3 + # Input: arg1: string + # vars: optionVerbose + # Output: stderr + # Depends: bash 5.0.3, echo 8.30, date 8.30 + + if [ "$optionVerbose" = "true" ]; then + functionTime=$(date --iso-8601=ns); # Save current time in nano seconds. + echo "[$functionTime]:$0:""$*" 1>&2; # Display argument text. + fi + + # End function + return 0; # Function finished. +} # Displays message if optionVerbose true +checkapp() { + # Desc: If arg is a command, save result in assoc array 'appRollCall' + # Usage: checkapp arg1 arg2 arg3 ... + # Version: 0.1.1 + # Input: global assoc. array 'appRollCall' + # Output: adds/updates key(value) to global assoc array 'appRollCall' + # Depends: bash 5.0.3 + local returnState + + #===Process Args=== + for arg in "$@"; do + if command -v "$arg" 1>/dev/null 2>&1; then # Check if arg is a valid command + appRollCall[$arg]="true"; + if ! [ "$returnState" = "false" ]; then returnState="true"; fi; + else + appRollCall[$arg]="false"; returnState="false"; + fi; + done; + + #===Determine function return code=== + if [ "$returnState" = "true" ]; then + return 0; + else + return 1; + fi; +} # Check that app exists +checkfile() { + # Desc: If arg is a file path, save result in assoc array 'fileRollCall' + # Usage: checkfile arg1 arg2 arg3 ... + # Version: 0.1.1 + # Input: global assoc. array 'fileRollCall' + # Output: adds/updates key(value) to global assoc array 'fileRollCall'; + # Output: returns 0 if app found, 1 otherwise + # Depends: bash 5.0.3 + local returnState + + #===Process Args=== + for arg in "$@"; do + if [ -f "$arg" ]; then + fileRollCall["$arg"]="true"; + if ! [ "$returnState" = "false" ]; then returnState="true"; fi; + else + fileRollCall["$arg"]="false"; returnState="false"; + fi; + done; + + #===Determine function return code=== + if [ "$returnState" = "true" ]; then + return 0; + else + return 1; + fi; +} # Check that file exists +checkdir() { + # Desc: If arg is a dir path, save result in assoc array 'dirRollCall' + # Usage: checkdir arg1 arg2 arg3 ... + # Version 0.1.1 + # Input: global assoc. array 'dirRollCall' + # Output: adds/updates key(value) to global assoc array 'dirRollCall'; + # Output: returns 0 if app found, 1 otherwise + # Depends: Bash 5.0.3 + local returnState + + #===Process Args=== + for arg in "$@"; do + if [ -d "$arg" ]; then + dirRollCall["$arg"]="true"; + if ! [ "$returnState" = "false" ]; then returnState="true"; fi + else + dirRollCall["$arg"]="false"; returnState="false"; + fi + done + + #===Determine function return code=== + if [ "$returnState" = "true" ]; then + return 0; + else + return 1; + fi +} # Check that dir exists +displayMissing() { + # Desc: Displays missing apps, files, and dirs + # Usage: displayMissing + # Version 0.1.1 + # Input: associative arrays: appRollCall, fileRollCall, dirRollCall + # Output: stderr: messages indicating missing apps, file, or dirs + # Depends: bash 5, checkAppFileDir() + local missingApps value appMissing missingFiles fileMissing + local missingDirs dirMissing + + #==BEGIN Display errors== + #===BEGIN Display Missing Apps=== + missingApps="Missing apps :"; + #for key in "${!appRollCall[@]}"; do echo "DEBUG :$key => ${appRollCall[$key]}"; done + for key in "${!appRollCall[@]}"; do + value="${appRollCall[$key]}"; + if [ "$value" = "false" ]; then + #echo "DEBUG :Missing apps: $key => $value"; + missingApps="$missingApps""$key "; + appMissing="true"; + fi; + done; + if [ "$appMissing" = "true" ]; then # Only indicate if an app is missing. + echo "$missingApps" 1>&2; + fi; + unset value; + #===END Display Missing Apps=== + + #===BEGIN Display Missing Files=== + missingFiles="Missing files:"; + #for key in "${!fileRollCall[@]}"; do echo "DEBUG :$key => ${fileRollCall[$key]}"; done + for key in "${!fileRollCall[@]}"; do + value="${fileRollCall[$key]}"; + if [ "$value" = "false" ]; then + #echo "DEBUG :Missing files: $key => $value"; + missingFiles="$missingFiles""$key "; + fileMissing="true"; + fi; + done; + if [ "$fileMissing" = "true" ]; then # Only indicate if an app is missing. + echo "$missingFiles" 1>&2; + fi; + unset value; + #===END Display Missing Files=== + + #===BEGIN Display Missing Directories=== + missingDirs="Missing dirs:"; + #for key in "${!dirRollCall[@]}"; do echo "DEBUG :$key => ${dirRollCall[$key]}"; done + for key in "${!dirRollCall[@]}"; do + value="${dirRollCall[$key]}"; + if [ "$value" = "false" ]; then + #echo "DEBUG :Missing dirs: $key => $value"; + missingDirs="$missingDirs""$key "; + dirMissing="true"; + fi; + done; + if [ "$dirMissing" = "true" ]; then # Only indicate if an dir is missing. + echo "$missingDirs" 1>&2; + fi; + unset value; + #===END Display Missing Directories=== + + #==END Display errors== +} # Display missing apps, files, dirs + +appendArgTar(){ + # Desc: Writes first argument to temporary file with arguments as options, then appends file to tar + # Usage: appendArgTar "$(echo "Data to be written.")" [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...) + # Version: 1.0.6 + # Input: arg1: data to be written + # arg2: file name of file to be inserted into tar + # arg3: tar archive path (must exist first) + # arg4: temporary working dir + # arg5+: command strings (ex: "gpsbabel -i nmea -f - -o kml -F - ") + # Output: file written to disk + # Example: decrypt multiple large files in parallel + # appendArgTar "$(cat /tmp/largefile1.gpg)" "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" & + # appendArgTar "$(cat /tmp/largefile2.gpg)" "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" & + # appendArgTar "$(cat /tmp/largefile3.gpg)" "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" & + # Depends: bash 5, tar 1, yell() + # Ref/Attrib: Using 'eval' to construct command strings https://askubuntu.com/a/476533 + + local fn fileName tarPath tmpDir cmd0 cmd1 cmd2 cmd3 cmd4 + + # Save function name + fn="${FUNCNAME[0]}"; + #yell "DEBUG:STATUS:$fn:Finished appendArgTar()." + + # Set file name + if ! [ -z "$2" ]; then fileName="$2"; else yell "ERROR:$fn:Not enough arguments."; exit 1; fi + + # Check tar path is a file + if [ -f "$3" ]; then tarPath="$3"; else yell "ERROR:$fn:Tar archive arg not a file."; exit 1; fi + + # Check temp dir arg + if ! [ -z "$4" ]; then tmpDir="$4"; else yell "ERROR:$fn:No temporary working dir set."; exit 1; fi + + # Set command strings + if ! [ -z "$5" ]; then cmd1="$5"; else cmd1="cat "; fi # command string 1 + if ! [ -z "$6" ]; then cmd2="$6"; else cmd2="cat "; fi # command string 2 + if ! [ -z "$7" ]; then cmd3="$7"; else cmd3="cat "; fi # command string 3 + if ! [ -z "$8" ]; then cmd4="$8"; else cmd4="cat "; fi # command string 4 + + # Input command + cmd0="echo \"\$1\"" + + # # Debug + # yell "DEBUG:STATUS:$fn:cmd0:$cmd0" + # yell "DEBUG:STATUS:$fn:cmd1:$cmd1" + # yell "DEBUG:STATUS:$fn:cmd2:$cmd2" + # yell "DEBUG:STATUS:$fn:cmd3:$cmd3" + # yell "DEBUG:STATUS:$fn:cmd4:$cmd4" + # yell "DEBUG:STATUS:$fn:fileName:$fileName" + # yell "DEBUG:STATUS:$fn:tarPath:$tarPath" + # yell "DEBUG:STATUS:$fn:tmpDir:$tmpDir" + + # Write to temporary working dir + eval "$cmd0 | $cmd1 | $cmd2 | $cmd3 | $cmd4" > "$tmpDir"/"$fileName"; + + # Append to tar + try tar --append --directory="$tmpDir" --file="$tarPath" "$fileName"; + #yell "DEBUG:STATUS:$fn:Finished appendArgTar()." +} # Append Bash var to file appended to Tar archive +appendFileTar(){ + # Desc: Appends [processed] file to tar + # Usage: appendFileTar [file path] [name of file to be inserted] [tar path] [temp dir] ([process cmd]) + # Version: 2.0.1 + # Input: arg1: path of file to be (processed and) written + # arg2: name to use for file inserted into tar + # arg3: tar archive path (must exist first) + # arg4: temporary working dir + # arg5: (optional) command string to process file (ex: "gpsbabel -i nmea -f - -o kml -F - ") + # Output: file written to disk + # Example: decrypt multiple large files in parallel + # appendFileTar /tmp/largefile1.gpg "largefile1" $HOME/archive.tar /tmp "gpg --decrypt" & + # appendFileTar /tmp/largefile2.gpg "largefile2" $HOME/archive.tar /tmp "gpg --decrypt" & + # appendFileTar /tmp/largefile3.gpg "largefile3" $HOME/archive.tar /tmp "gpg --decrypt" & + # Depends: bash 5.0.3, tar 1.30, cat 8.30, yell() + local fn fileName tarPath tmpDir + + # Save function name + fn="${FUNCNAME[0]}"; + #yell "DEBUG :STATUS:$fn:Started appendFileTar()." + + # Set file name + if ! [ -z "$2" ]; then fileName="$2"; else yell "ERROR:$fn:Not enough arguments."; exit 1; fi + # Check tar path is a file + if [ -f "$3" ]; then tarPath="$3"; else yell "ERROR:$fn:Tar archive arg not a file:$3"; exit 1; fi + # Check temp dir arg + if ! [ -z "$4" ]; then tmpDir="$4"; else yell "ERROR:$fn:No temporary working dir set."; exit 1; fi + # Set command strings + if ! [ -z "$5" ]; then cmd1="$5"; else cmd1="cat "; fi # command string + + # Input command string + cmd0="cat \"\$1\""; + + # Write to temporary working dir + eval "$cmd0 | $cmd1" > "$tmpDir"/"$fileName"; + + # Append to tar + try tar --append --directory="$tmpDir" --file="$tarPath" "$fileName"; + #yell "DEBUG :STATUS:$fn:Finished appendFileTar()." +} # Append [processed] file to Tar archive +checkAgePubkey() { + # Desc: Checks if string is an age-compatible pubkey + # Usage: checkAgePubkey [str pubkey] + # Version: 0.1.2 + # Input: arg1: string + # Output: return code 0: string is age-compatible pubkey + # return code 1: string is NOT an age-compatible pubkey + # age stderr (ex: there is stderr if invalid string provided) + # Depends: age (v0.1.0-beta2; https://github.com/FiloSottile/age/releases/tag/v1.0.0-beta2 ) + + argPubkey="$1"; + + if echo "test" | age -a -r "$argPubkey" 1>/dev/null; then + return 0; + else + return 1; + fi; +} # Check age pubkey +checkMakeTar() { + # Desc: Checks that a valid tar archive exists, creates one otherwise + # Usage: checkMakeTar [ path ] + # Version: 1.0.2 + # Input: arg1: path of tar archive + # Output: exit code 0 : tar readable + # exit code 1 : tar missing; created + # exit code 2 : tar not readable; moved; replaced + # Depends: bash 5, date 8, tar 1, try() + local pathTar returnFlag0 returnFlag1 returnFlag2 + pathTar="$1"; + + # Check if file is a valid tar archive + if tar --list --file="$pathTar" 1>/dev/null 2>&1; then + ## T1: return success + returnFlag0="tar valid"; + elif { sleep 2; tar --list --file="$pathTar" 1>/dev/null 2>&1; }; then + ## F1: Check tar archive again after 2-second sleep + returnFlag0="tar valid"; + else + ## F2-1: Check if file exists + if [[ -f "$pathTar" ]]; then + ### T: Rename file + try mv "$pathTar" "$pathTar""--broken--""$(date +%Y%m%dT%H%M%S%z)" && \ + returnFlag1="tar moved"; + else + ### F: - + : + fi; + ## F2-1: Create tar archive, return 0 + try tar --create --file="$pathTar" --files-from=/dev/null && \ + returnFlag2="tar created"; + fi; + + # Determine function return code + if [[ "$returnFlag0" = "tar valid" ]]; then + return 0; + elif [[ "$returnFlag2" = "tar created" ]] && ! [[ "$returnFlag1" = "tar moved" ]]; then + return 1; # tar missing so created + elif [[ "$returnFlag2" = "tar created" ]] && [[ "$returnFlag1" = "tar moved" ]]; then + return 2; # tar not readable so moved; replaced + fi; +} # checks if arg1 is tar; creates one otherwise +dateShort(){ + # Desc: Date without separators (YYYYmmdd) + # Usage: dateShort ([str date]) + # Version: 1.1.2 + # Input: arg1: 'date'-parsable timestamp string (optional) + # Output: stdout: date (ISO-8601, no separators) + # Depends: bash 5.0.3, date 8.30, yell() + local argTime timeCurrent timeInput dateCurrentShort + + argTime="$1"; + # Get Current Time + timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. + # Decide to parse current or supplied date + ## Check if time argument empty + if [[ -z "$argTime" ]]; then + ## T: Time argument empty, use current time + timeInput="$timeCurrent"; + else + ## F: Time argument exists, validate time + if date --date="$argTime" 1>/dev/null 2>&1; then + ### T: Time argument is valid; use it + timeInput="$argTime"; + else + ### F: Time argument not valid; exit + yell "ERROR:Invalid time argument supplied. Exiting."; exit 1; + fi; + fi; + # Construct and deliver separator-les date string + dateCurrentShort="$(date -d "$timeInput" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day. + echo "$dateCurrentShort"; +} # Get YYYYmmdd +dateTimeShort(){ + # Desc: Timestamp without separators (YYYYmmddTHHMMSS+zzzz) + # Usage: dateTimeShort ([str date]) + # Version 1.1.1 + # Input: arg1: 'date'-parsable timestamp string (optional) + # Output: stdout: timestamp (ISO-8601, no separators) + # Depends: yell + local argTime timeCurrent timeInput timeCurrentShort + + argTime="$1"; + # Get Current Time + timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. + # Decide to parse current or supplied date + ## Check if time argument empty + if [[ -z "$argTime" ]]; then + ## T: Time argument empty, use current time + timeInput="$timeCurrent"; + else + ## F: Time argument exists, validate time + if date --date="$argTime" 1>/dev/null 2>&1; then + ### T: Time argument is valid; use it + timeInput="$argTime"; + else + ### F: Time argument not valid; exit + yell "ERROR:Invalid time argument supplied. Exiting."; exit 1; + fi + fi + # Construct and deliver separator-les date string + timeCurrentShort="$(date -d "$timeInput" +%Y%m%dT%H%M%S%z)"; + echo "$timeCurrentShort"; +} # Get YYYYmmddTHHMMSS±zzzz +setTimeZoneEV(){ + # Desc: Set time zone environment variable TZ + # Usage: setTimeZoneEV arg1 + # Version 0.1.2 + # Input: arg1: 'date'-compatible timezone string (ex: "America/New_York") + # TZDIR env var (optional; default: "/usr/share/zoneinfo") + # Output: exports TZ + # exit code 0 on success + # exit code 1 on incorrect number of arguments + # exit code 2 if unable to validate arg1 + # Depends: yell(), printenv 8.30, bash 5.0.3 + # Tested on: Debian 10 + local tzDir returnState argTimeZone + + argTimeZone="$1" + if ! [[ $# -eq 1 ]]; then + yell "ERROR:Invalid argument count."; + return 1; + fi + + # Read TZDIR env var if available + if printenv TZDIR 1>/dev/null 2>&1; then + tzDir="$(printenv TZDIR)"; + else + tzDir="/usr/share/zoneinfo"; + fi + + # Validate TZ string + if ! [[ -f "$tzDir"/"$argTimeZone" ]]; then + yell "ERROR:Invalid time zone argument."; + return 2; + else + # Export ARG1 as TZ environment variable + TZ="$argTimeZone" && export TZ && returnState="true"; + fi + + # Determine function return code + if [ "$returnState" = "true" ]; then + return 0; + fi +} # Exports TZ environment variable +showVersion() { + yell "$scriptVersion" +} # Display script version. +timeDuration(){ + # Desc: Given seconds, output ISO-8601 duration string + # Ref/Attrib: ISO-8601:2004(E), §4.4.4.2 Representations of time intervals by duration and context information + # Note: "1 month" ("P1M") is assumed to be "30 days" (see ISO-8601:2004(E), §2.2.1.2) + # Usage: timeDuration [1:seconds] ([2:precision]) + # Version: 1.0.5 + # Input: arg1: seconds as base 10 integer >= 0 (ex: 3601) + # arg2: precision level (optional; default=2) + # Output: stdout: ISO-8601 duration string (ex: "P1H1S", "P2Y10M15DT10H30M20S") + # exit code 0: success + # exit code 1: error_input + # exit code 2: error_unknown + # Example: 'timeDuration 111111 3' yields 'P1DT6H51M' + # Depends: date 8, bash 5, yell, + local argSeconds argPrecision precision returnState remainder + local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds + local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds + local witherPrecision output + local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds + + argSeconds="$1"; # read arg1 (seconds) + argPrecision="$2"; # read arg2 (precision) + precision=2; # set default precision + + # Check that between one and two arguments is supplied + if ! { [[ $# -ge 1 ]] && [[ $# -le 2 ]]; }; then + yell "ERROR:Invalid number of arguments:$# . Exiting."; + returnState="error_input"; fi + + # Check that argSeconds provided + if [[ $# -ge 1 ]]; then + ## Check that argSeconds is a positive integer + if [[ "$argSeconds" =~ ^[[:digit:]]+$ ]]; then + : + else + yell "ERROR:argSeconds not a digit."; + returnState="error_input"; + fi + else + yell "ERROR:No argument provided. Exiting."; + exit 1; + fi + + # Consider whether argPrecision was provided + if [[ $# -eq 2 ]]; then + # Check that argPrecision is a positive integer + if [[ "$argPrecision" =~ ^[[:digit:]]+$ ]] && [[ "$argPrecision" -gt 0 ]]; then + precision="$argPrecision"; + else + yell "ERROR:argPrecision not a positive integer. (is $argPrecision ). Leaving early."; + returnState="error_input"; + fi; + else + : + fi; + + remainder="$argSeconds" ; # seconds + ## Calculate full years Y, update remainder + fullYears=$(( remainder / (365*24*60*60) )); + remainder=$(( remainder - (fullYears*365*24*60*60) )); + ## Calculate full months M, update remainder + fullMonths=$(( remainder / (30*24*60*60) )); + remainder=$(( remainder - (fullMonths*30*24*60*60) )); + ## Calculate full days D, update remainder + fullDays=$(( remainder / (24*60*60) )); + remainder=$(( remainder - (fullDays*24*60*60) )); + ## Calculate full hours H, update remainder + fullHours=$(( remainder / (60*60) )); + remainder=$(( remainder - (fullHours*60*60) )); + ## Calculate full minutes M, update remainder + fullMinutes=$(( remainder / (60) )); + remainder=$(( remainder - (fullMinutes*60) )); + ## Calculate full seconds S, update remainder + fullSeconds=$(( remainder / (1) )); + remainder=$(( remainder - (remainder*1) )); + ## Check which fields filled + if [[ $fullYears -gt 0 ]]; then hasYears="true"; else hasYears="false"; fi + if [[ $fullMonths -gt 0 ]]; then hasMonths="true"; else hasMonths="false"; fi + if [[ $fullDays -gt 0 ]]; then hasDays="true"; else hasDays="false"; fi + if [[ $fullHours -gt 0 ]]; then hasHours="true"; else hasHours="false"; fi + if [[ $fullMinutes -gt 0 ]]; then hasMinutes="true"; else hasMinutes="false"; fi + if [[ $fullSeconds -ge 0 ]]; then hasSeconds="true"; else hasSeconds="false"; fi + + ## Determine which fields to display (see ISO-8601:2004 §4.4.3.2) + witherPrecision="false" + + ### Years + if $hasYears && [[ $precision -gt 0 ]]; then + displayYears="true"; + witherPrecision="true"; + else + displayYears="false"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ### Months + if $hasMonths && [[ $precision -gt 0 ]]; then + displayMonths="true"; + witherPrecision="true"; + else + displayMonths="false"; + fi; + if $witherPrecision && [[ $precision -gt 0 ]]; then + displayMonths="true"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ### Days + if $hasDays && [[ $precision -gt 0 ]]; then + displayDays="true"; + witherPrecision="true"; + else + displayDays="false"; + fi; + if $witherPrecision && [[ $precision -gt 0 ]]; then + displayDays="true"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ### Hours + if $hasHours && [[ $precision -gt 0 ]]; then + displayHours="true"; + witherPrecision="true"; + else + displayHours="false"; + fi; + if $witherPrecision && [[ $precision -gt 0 ]]; then + displayHours="true"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ### Minutes + if $hasMinutes && [[ $precision -gt 0 ]]; then + displayMinutes="true"; + witherPrecision="true"; + else + displayMinutes="false"; + fi; + if $witherPrecision && [[ $precision -gt 0 ]]; then + displayMinutes="true"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ### Seconds + + if $hasSeconds && [[ $precision -gt 0 ]]; then + displaySeconds="true"; + witherPrecision="true"; + else + displaySeconds="false"; + fi; + if $witherPrecision && [[ $precision -gt 0 ]]; then + displaySeconds="true"; + fi; + if $witherPrecision; then ((precision--)); fi; + + ## Determine whether or not the "T" separator is needed to separate date and time elements + if ( $displayHours || $displayMinutes || $displaySeconds); then + displayDateTime="true"; else displayDateTime="false"; fi + + ## Construct duration output string + output="P" + if $displayYears; then + output=$output$fullYears"Y"; fi + if $displayMonths; then + output=$output$fullMonths"M"; fi + if $displayDays; then + output=$output$fullDays"D"; fi + if $displayDateTime; then + output=$output"T"; fi + if $displayHours; then + output=$output$fullHours"H"; fi + if $displayMinutes; then + output=$output$fullMinutes"M"; fi + if $displaySeconds; then + output=$output$fullSeconds"S"; fi + + ## Output duration string to stdout + echo "$output" && returnState="true"; + + #===Determine function return code=== + if [ "$returnState" = "true" ]; then + return 0; + elif [ "$returnState" = "error_input" ]; then + yell "ERROR:input"; + return 1; + else + yell "ERROR:Unknown"; + return 2; + fi + +} # Get duration (ex: PT10M4S ) +timeUntilNextDay(){ + # Desc: Report seconds until next day. + # Version: 1.0.2 + # Output: stdout: integer seconds until next day + # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0 + # Usage: timeUntilNextDay + # Usage: if ! myTTL="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi + # Depends: date 8, echo 8, yell, try + + local returnState timeCurrent timeNextDay secondsUntilNextDay returnState + timeCurrent="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. + timeNextDay="$(date -d "$timeCurrent next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second. + secondsUntilNextDay="$(( $(date +%s -d "$timeNextDay") - $(date +%s -d "$timeCurrent") ))" ; # Calculate seconds until closest future midnight (res. 1 second). + if [[ "$secondsUntilNextDay" -gt 0 ]]; then + returnState="true"; + elif [[ "$secondsUntilNextDay" -eq 0 ]]; then + returnState="warning_zero"; + yell "WARNING:Reported time until next day exactly zero."; + elif [[ "$secondsUntilNextDay" -lt 0 ]]; then + returnState="warning_negative"; + yell "WARNING:Reported time until next day is negative."; + fi + + try echo "$secondsUntilNextDay"; # Report + + # Determine function return code + if [[ "$returnState" = "true" ]]; then + return 0; + elif [[ "$returnState" = "warning_zero" ]]; then + return 1; + elif [[ "$returnState" = "warning_negative" ]]; then + return 2; + fi +} # Report seconds until next day +timeUntilNextHour(){ + # Desc: Report seconds until next hour + # Version 1.0.1 + # Output: stdout: integer seconds until next hour + # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0 + # Usage: timeUntilNextHour + # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi + + local returnState timeCurrent timeNextHour secondsUntilNextHour + timeCurrent="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second. + timeNextHour="$(date -d "$timeCurrent next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second. + secondsUntilNextHour="$(( $(date +%s -d "$timeNextHour") - $(date +%s -d "$timeCurrent") ))"; # Calculate seconds until next hour (res. 1 second). + if [[ "$secondsUntilNextHour" -gt 0 ]]; then + returnState="true"; + elif [[ "$secondsUntilNextHour" -eq 0 ]]; then + returnState="warning_zero"; + yell "WARNING:Reported time until next hour exactly zero."; + elif [[ "$secondsUntilNextHour" -lt 0 ]]; then + returnState="warning_negative"; + yell "WARNING:Reported time until next hour is negative."; + fi; + + try echo "$secondsUntilNextHour"; # Report + + # Determine function return code + if [[ "$returnState" = "true" ]]; then + return 0; + elif [[ "$returnState" = "warning_zero" ]]; then + return 1; + elif [[ "$returnState" = "warning_negative" ]]; then + return 2; + fi; +} # Report seconds until next hour +validateInput() { + # Desc: Validates Input + # Usage: validateInput [str input] [str input type] + # Version: 0.3.1 + # Input: arg1: string to validate + # arg2: string specifying input type (ex:"ssh_pubkey") + # Output: return code 0: if input string matched specified string type + # Depends: bash 5, yell() + + local fn argInput argType + + # Save function name + fn="${FUNCNAME[0]}"; + + # Process arguments + argInput="$1"; + argType="$2"; + if [[ $# -gt 2 ]]; then yell "ERROR:$0:$fn:Too many arguments."; exit 1; fi; + + # Check for blank + if [[ -z "$argInput" ]]; then return 1; fi + + # Define input types + ## ssh_pubkey + ### Check for alnum/dash base64 (ex: "ssh-rsa AAAAB3NzaC1yc2EAAA") + if [[ "$argType" = "ssh_pubkey" ]]; then + if [[ "$argInput" =~ ^[[:alnum:]-]*[\ ]*[[:alnum:]+/=]*$ ]]; then + return 0; fi; fi; + + ## age_pubkey + ### Check for age1[:bech32:] + if [[ "$argType" = "age_pubkey" ]]; then + if [[ "$argInput" =~ ^age1[qpzry9x8gf2tvdw0s3jn54khce6mua7l]*$ ]]; then + return 0; fi; fi + + ## integer + if [[ "$argType" = "integer" ]]; then + if [[ "$argInput" =~ ^[[:digit:]]*$ ]]; then + return 0; fi; fi; + + ## time element (year, month, week, day, hour, minute, second) + if [[ "$argType" = "time_element" ]]; then + if [[ "$argInput" = "year" ]] || \ + [[ "$argInput" = "month" ]] || \ + [[ "$argInput" = "week" ]] || \ + [[ "$argInput" = "day" ]] || \ + [[ "$argInput" = "hour" ]] || \ + [[ "$argInput" = "minute" ]] || \ + [[ "$argInput" = "second" ]]; then + return 0; fi; fi; + + # Return error if no condition matched. + return 1; +} # Validates strings + +magicInitWorkingDir() { + # Desc: Determine temporary working directory from defaults or user input + # Usage: magicInitWorkingDir + # Input: vars: optionTmpDir, argTempDirPriority, dirTmpDefault + # Input: vars: scriptTimeStart + # Output: vars: dir_tmp + # Depends: bash 5.0.3, processArguments(), vbm(), yell() + # Parse '-t' option (user-specified temporary working dir) + ## Set dir_tmp_parent to user-specified value if specified + local fn dir_tmp_parent + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicInitWorkingDir() function."; + if [[ "$optionTmpDir" = "true" ]]; then + if [[ -d "$argTempDirPriority" ]]; then + dir_tmp_parent="$argTempDirPriority"; + else + yell "WARNING:$fn:Specified temporary working directory not valid:$argTempDirPriority"; + exit 1; # Exit since user requires a specific temp dir and it is not available. + fi; + else + ## Set dir_tmp_parent to default or fallback otherwise + if [[ -d "$dirTmpDefault" ]]; then + dir_tmp_parent="$dirTmpDefault"; + elif [[ -d /tmp ]]; then + yell "WARNING:$fn:$dirTmpDefault not available. Falling back to /tmp ."; + dir_tmp_parent="/tmp"; + else + yell "ERROR:$fn:No valid working directory available. Exiting."; + exit 1; + fi; + fi; + ## Set dir_tmp using dir_tmp_parent and nonce (scriptTimeStart) + dir_tmp="$dir_tmp_parent"/"$scriptTimeStart""..bkgpslog" && vbm "DEBUG :$fn:Set dir_tmp to:$dir_tmp"; # Note: removed at end of main(). + vbm "STATUS:$fn:Finished magicInitWorkingDir() function."; +} # Sets working dir +magicInitCheckTar() { + # Desc: Initializes or checks output tar + # input: vars: dirOut, bufferTTL, cmd_encrypt_suffix, cmd_compress_suffix + # input: vars: scriptHostname + # output: vars: pathout_tar + # depends: Bash 5.0.3, vbm(), dateShort(), checkMakeTar(), magicWriteVersion() + local fn checkMakeTarES + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicInitCheckTar() function."; + # Form pathout_tar + pathout_tar="$dirOut"/"$(dateShort "$(date --date="$bufferTTL seconds ago" --iso-8601=seconds)")".."$scriptHostname""$label""$cmd_compress_suffix""$cmd_encrypt_suffix".tar && \ + vbm "STATUS:$fn:Set pathout_tar to:$pathout_tar"; + # Validate pathout_tar as tar. + checkMakeTar "$pathout_tar"; checkMakeTarES="$?"; + ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2) + vbm "STATUS:$fn:exit status before magicWriteVersion:$checkMakeTarES" + if [[ "$checkMakeTarES" -eq 1 ]] || [[ "$checkMakeTarES" -eq 2 ]]; then magicWriteVersion; fi + vbm "STATUS:$fn:Finished magicInitCheckTar() function."; +} # Initialize tar, set pathout_tar +magicParseCompressionArg() { + # Desc: Parses compression arguments specified by '-c' option + # Input: vars: optionCompress + # Output: cmd_compress, cmd_compress_suffix + # Depends: processArguments(), vbm(), checkapp(), gzip 1.9 + local fn + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicParseCompressionArg() function."; + if [[ "$optionCompress" = "true" ]]; then # Check if compression option active + if checkapp gzip; then # Check if gzip available + cmd_compress="gzip " && vbm "STATUS:$fn:cmd_compress:$cmd_compress"; + cmd_compress_suffix=".gz" && vbm "STATUS:$fn:cmd_compress_suffix:$cmd_compress_suffix"; + else + yell "ERROR:$fn:Compression enabled but \"gzip\" not found. Exiting."; exit 1; + fi; + else + cmd_compress="tee /dev/null " && vbm "STATUS:$fn:cmd_compress:$cmd_compress"; + cmd_compress_suffix="" && vbm "STATUS:$fn:cmd_compress_suffix:$cmd_compress_suffix"; + vbm "DEBUG :$fn:Compression not enabled."; + fi; + vbm "STATUS:$fn:Finished magicParseCompressionArg() function."; +} # Form compression cmd string and filename suffix +magicParseCustomTTL() { + # Desc: Set user-specified TTLs for buffer and script + # Usage: magicParseCustomTTL + # Input: vars: argCustomBufferTTL (integer), argCustomScriptTTL_TE (string) + # Input: vars: optionCustomBufferTTL, optionCustomScriptTTL_TE + # Input: vars: bufferTTL (integer), scriptTTL_TE (string) + # Output: bufferTTL (integer), scriptTTL_TE (string) + # Depends: Bash 5.0.3, yell(), vbm(), validateInput(), showUsage() + local fn + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicParseCustomTTL() function."; + # React to '-b, --buffer-ttl' option + if [[ "$optionCustomBufferTTL" = "true" ]]; then + ## T: Check if argCustomBufferTTL is an integer + if validateInput "$argCustomBufferTTL" "integer"; then + ### T: argCustomBufferTTL is an integer + bufferTTL="$argCustomBufferTTL" && vbm "STATUS:$fn:Custom bufferTTL from -b:$bufferTTL"; + else + ### F: argcustomBufferTTL is not an integer + yell "ERROR:$fn:Invalid integer argument for custom buffer time-to-live."; showUsage; exit 1; + fi; + ## F: do not change bufferTTL + fi; + + # React to '-B, --script-ttl' option + if [[ "$optionCustomScriptTTL_TE" = "true" ]]; then + ## T: Check if argCustomScriptTTL is a time element (ex: "day", "hour") + if validateInput "$argCustomScriptTTL_TE" "time_element"; then + ### T: argCustomScriptTTL is a time element + scriptTTL_TE="$argCustomScriptTTL_TE" && vbm "STATUS:$fn:Custom scriptTTL_TE from -B:$scriptTTL_TE"; + else + ### F: argcustomScriptTTL is not a time element + yell "ERROR:$fn:Invalid time element argument for custom script time-to-live."; showUsage; exit 1; + fi; + ## F: do not change scriptTTL_TE + fi; + vbm "STATUS:$fn:Finished magicParseCustomTTL() function."; +} # Sets custom script or buffer TTL if specified +magicParseLabel() { + # Desc: Parses -l option to set label + # In : optionLabel, argLabel + # Out: vars: label + # Depends: Bash 5.0.3, vbm(), yell() + local fn + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Started magicParseLabel() function."; + # Do nothing if optionLabel not set to true. + if [[ ! "$optionLabel" = "true" ]]; then + vbm "STATUS:$fn:optionlabel not set to 'true'. Returning early."; + return; + fi; + # Set label if optionLabel is true + if [[ "$optionLabel" = "true" ]]; then + label="_""$argLabel"; + vbm "STATUS:$fn:Set label:$label"; + fi; + vbm "STATUS:$fn:Finished magicParseLabel() function."; +} # Set label used in output file name +magicParseProcessStrings() { + # Desc: Processes user-supplied process strings into process commands for appendFileTar(). + # Usage: magicParseProcessStrings + # In : vars: optionProcString optionNoStoreRaw optionStoreRaw argRawFileExt + # arry: argProcStrings, argProcFileExts + # Out: arry: procStrings, procFileExts + # Depends Bash 5.0.3, yell(), vbm() + local fn rawFileExt + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicParseProcessStrings() function."; + vbm "STATUS:$fn:var:optionProcString:$optionProcString"; + vbm "STATUS:$fn:var:optionNoStoreRaw:$optionNoStoreRaw"; + vbm "STATUS:$fn:var:optionStoreRaw:$optionStoreRaw"; + vbm "STATUS:$fn:var:argRawFileExt:$argRawFileExt"; + vbm "STATUS:$fn:ary:argProcStrings:${argProcStrings[*]}"; + vbm "STATUS:$fn:ary:argProcFileExts:${argProcFileExts[*]}" + # Validate input + ## Validate argRawFileExt + if [[ "$argRawFileExt" =~ ^[.][[:alnum:]]*$ ]]; then + rawFileExt="$argRawFileExt" && \ + vbm "DEBUG :$fn:Set rawFileExt to \"$argRawFileExt\""; + else + vbm "DEBUG :$fn:Validation failure for $argRawFileExt . Not set to rawFileExt."; + fi; + + # Add default stdin output file entries for procStrings, procFileExts + ## Check if user specified that no raw stdin be saved. + if [[ ! "$optionNoStoreRaw" = "true" ]]; then + ### T: --no-store-raw not set. Store raw. Append procStrings with cat. + vbm "DEBUG :$fn:--no-store-raw not set. Storing raw."; + #### Append procStrings array + procStrings+=("cat ") && \ + vbm "DEBUG :$fn:Appended \"cat \" to procStrings"; + vbm "DEBUG :$fn:procStrings array:${procStrings[*]}"; + #### Check if --store-raw set. + if [[ "$optionStoreRaw" = "true" ]]; then + ##### T: --store-raw set. Append procFileExts with user-specified file ext + vbm "DEBUG :$fn:--store-raw set."; + procFileExts+=("$rawFileExt") && \ + vbm "DEBUG :$fn:Appended $rawFileExt to procFileExts"; + vbm "STATUS:$fn:procFileExts array:${procFileExts[*]}"; + else + ##### F: --store-raw not set. Append procFileExts with default ".stdin" file ext + ###### Append procFileExts array + procFileExts+=(".stdin") && \ + vbm "DEBUG :$fn:Appended \".stdin\" to procFileExts"; + vbm "STATUS:$fn:procFileExts array:${procFileExts[*]}"; + fi; + else + ### F: --no-store-raw set. Do not store raw. + #### Do not append procStrings or procFileExts arrays. + vbm "STATUS:$fn:--no-store-raw set. Not storing raw."; + vbm "STATUS:$fn:procFileExts array:${procFileExts[*]}"; + fi; + + # Do nothing more if optionProcString not set to true. + if [[ ! "$optionProcString" = "true" ]]; then + vbm "STATUS:$fn:optionProcString not set to 'true'. Returning early."; + return; fi; + # Validate input array indices + ## Make sure that argProcStrings and argProcFileExts have same index counts + if ! [[ "${#argProcStrings[@]}" -eq "${#argProcFileExts[@]}" ]]; then + yell "ERROR:$fn:Mismatch in number of elements in arrays argProcStrings and argProcFileExts:${#argProcStrings[@]} DNE ${#argProcFileExts[@]}"; + yell "STATUS:$fn:argProcStrings:${argProcStrings[*]}"; yell "STATUS:$fn:argProcFileExts:${argProcFileExts[*]}"; exit 1; fi; + ## Make sure that no array elements are blank + for element in "${argProcStrings[@]}"; do + if [[ -z "$element" ]]; then yell "ERROR:$fn:Empty process string specified. Exiting."; exit 1; fi; done + for element in "${argProcFileExts[@]}"; do + if [[ -z "$element" ]]; then yell "ERROR:$fn:Empty output file extension specified. Exiting."; exit 1; fi; done + ## Make sure that no process string starts with '-' (ex: if only one arg supplied after '-p' option) + for element in "${argProcStrings[@]}"; do + if [[ "$element" =~ ^[-][[:print:]]*$ ]] && [[ ! "$element" =~ ^[[:print:]]*$ ]]; then + yell "ERROR:$fn:Illegal character '-' at start of process string element:\"$element\""; + exit 1; fi; done; + vbm "STATUS:$fn:Quick check shows argProcStrings and argProcFileExts appear to have valid contents."; + vbm "STATUS:$fn:argProcStrings:${argProcStrings[*]}" + vbm "STATUS:$fn:argProcFileExts:${argProcFileExts[*]}" + procStrings+=("${argProcStrings[@]}"); # Export process command strings + procFileExts+=("${argProcFileExts[@]}"); # Export process command strings + vbm "STATUS:$fn:procStrings:${procStrings[*]}" + vbm "STATUS:$fn:procFileExts:${procFileExts[*]}" + vbm "STATUS:$fn:Finished magicParseProcessStrings() function."; +} # Validate and save process strings and file extensions to arrays procStrings, procFileExts +magicParseRecipients() { + # Desc: Parses recipient arguments specified by '-r' or '-R' options + # Usage: magicParseRecipients + # In : vars: optionEncrypt, optionRecArg, optionRecDir + # arry: argRecPubKeys (-r), argRecDir (-R) + # Out: vars: cmd_encrypt, cmd_encrypt_suffix + # Depends: head 8.30, checkapp(), checkAgePubkey(), validateInput() + local fn recipients recipientDir recFileLine updateRecipients + local -a recPubKeysValid candRecPubKeysValid + + # Save function name + fn="${FUNCNAME[0]}"; + vbm "STATUS:$fn:Starting magicParseRecipients() function."; + + # Catch illegal option combinations + ## Catch case if '-e' is set but neither '-r' nor '-R' is set + if [[ "$optionEncrypt" = "true" ]] && \ + ! { [[ "$optionRecArg" = "true" ]] || [[ "$optionRecDir" = "true" ]]; }; then + yell "ERROR:$fn:\\'-e\\' set but no \\'-r\\' or \\'-R\\' set."; exit 1; fi; + ## Catch case if '-r' or '-R' set but '-e' is not + if [[ ! "$optionEncrypt" = "true" ]] && \ + { [[ "$optionRecArg" = "true" ]] || [[ "$optionRecDir" = "true" ]]; }; then + yell "ERROR:$fn:\\'-r\\' or \\'-R\\' set but \\'-e\\' is not set."; exit 1; fi; + + # Handle no encryption cases + if [[ ! "$optionEncrypt" = "true" ]]; then + cmd_encrypt="cat " && vbm "STATUS:$fn:cmd_encrypt:$cmd_encrypt"; + cmd_encrypt_suffix="" && vbm "STATUS:$fn:cmd_encrypt_suffix:$cmd_encrypt_suffix"; + vbm "DEBUG :$fn:Encryption not enabled."; + return; fi; + + # Handle encryption cases + ## Check age availability + if ! checkapp age; then yell "ERROR:$fn:age not available. Exiting."; exit 1; fi + ## Parse '-r' options: validate and append pubkeys from argRecPubKeys to recPubKeysValid + if [[ "$optionRecArg" = "true" ]]; then + for pubkey in "${argRecPubKeys[@]}"; do # Validate recipient pubkey strings by forming test message + vbm "DEBUG :$fn:Testing pubkey string:$pubkey"; + if checkAgePubkey "$pubkey" && \ + ( validateInput "$pubkey" "ssh_pubkey" || validateInput "$pubkey" "age_pubkey"); then + #### Add validated pubkey to recPubKeysValid array + recPubKeysValid+=("$pubkey") && \ + vbm "DEBUG :$fn:recPubkeysValid:pubkey added:$pubkey"; + else + yell "ERROR:$fn:Exit code ""$?"". Invalid recipient pubkey string. Exiting."; exit 1; + fi; + done; + vbm "STATUS:$fn:Finished processing argRecPubKeys array"; + vbm "DEBUG :$fn:Array of validated pubkeys:${recPubKeysValid[*]}"; + fi; + ## Parse '-R' options: validate and append pubkeys in argRecDir to recPubKeysValid + if [[ "$optionRecDir" = "true" ]]; then + ### Check that argRecDir is a directory + if [[ -d "$argRecDir" ]]; then + recipientDir="$argRecDir" && \ + vbm "STATUS:$fn:Recipient watch directory detected:\"$recipientDir\""; + #### Initialize variable indicating outcome of pubkey review + unset updateRecipients + #### Add existing recipients from '-r' option + candRecPubKeysValid=("${recPubKeysValid[@]}"); + #### Parse files in recipientDir + for file in "$recipientDir"/*; do + ##### Read first line of each file + recFileLine="$(head -n1 "$file")" && \ + vbm "STATUS:$fn:Checking if pubkey:\"$recFileLine\""; + ##### check if first line is a valid pubkey + if checkAgePubkey "$recFileLine" && \ + ( validateInput "$recFileLine" "ssh_pubkey" || validateInput "$recFileLine" "age_pubkey"); then + ###### T: add candidate pubkey to candRecPubKeysValid + candRecPubKeysValid+=("$recFileLine") && \ + vbm "STATUS:$fn:RecDir pubkey is valid pubkey:\"$recFileLine\""; + else + ###### F: throw warning; + yell "ERROR:$fn:Invalid recipient file detected. Not modifying recipient list:$recFileLine"; + updateRecipients="false"; + fi; + done + #### Write candRecPubKeysValid array to recPubKeysValid if no invalid key detected + if ! [[ "$updateRecipients" = "false" ]]; then + recPubKeysValid=("${candRecPubKeysValid[@]}") && \ + vbm "STATUS:$fn:Wrote candRecPubkeysValid to recPubKeysValid:\"${recPubKeysValid[*]}\""; + fi; + fi; + fi; + + ## Form age recipient string from recPubKeysValid + for pubkey in "${recPubKeysValid[@]}"; do + recipients="$recipients""-r '$pubkey' "; + vbm "STATUS:$fn:Added pubkey for forming age recipient string:""$pubkey"; + vbm "DEBUG :$fn:recipients:""$recipients"; + done; + + ## Output cmd_encrypt, cmd_encrypt_suffix from recipients + cmd_encrypt="age ""$recipients " && vbm "STATUS:$fn:cmd_encrypt:$cmd_encrypt"; + cmd_encrypt_suffix=".age" && vbm "STATUS:$fn:cmd_encrypt_suffix:$cmd_encrypt_suffix"; + + vbm "STATUS:$fn:Finished magicParseRecipients() function."; +} # Sets cmd_encrypt, cmd_encrypt_suffix from -r, -R args +magicSetScriptTTL() { + #Desc: Sets script_TTL seconds from provided time_element string argument + #Usage: magicSetScriptTTL [str time_element] + #Input: arg1: string (Ex: scriptTTL_TE; "day" or "hour") + #Output: var: scriptTTL (integer seconds) + #Depends: timeUntilNextHour, timeUntilNextDay + local fn argTimeElement + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicSetScriptTTL() function."; + argTimeElement="$1"; + if [[ "$argTimeElement" = "day" ]]; then + # Set script lifespan to end at start of next day + vbm "STATUS:$fn:Setting script lifespan to end at start of next day. argTimeElement:$argTimeElement"; + if ! scriptTTL="$(timeUntilNextDay)"; then # sets scriptTTL, then checks exit code + if [[ "$scriptTTL" -eq 0 ]]; then + ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. + vbm "STATUS:$fn:scriptTTL:$scriptTTL"; + else + yell "ERROR:$fn:timeUntilNextDay exit code $?"; exit 1; + fi; + fi; + elif [[ "$argTimeElement" = "hour" ]]; then + # Set script lifespan to end at start of next hour + vbm "STATUS:$fn:Setting script lifespan to end at start of next hour. argTimeElement:$argTimeElement"; + if ! scriptTTL="$(timeUntilNextHour)"; then # sets scriptTTL, then checks exit code + if [[ "$scriptTTL" -eq 0 ]]; then + ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. + vbm "STATUS:$fn:scriptTTL:$scriptTTL"; + else + yell "ERROR:$fn:timeUntilNextHour exit code $?"; exit 1; + fi; + fi; + else + yell "ERROR:$fn:Invalid argument for setScriptTTL function:$argTimeElement"; exit 1; + fi; + vbm "STATUS:$fn:Finished magicSetScriptTTL() function."; +} # Set scriptTTL in seconds until next (day|hour). +magicVerboseReadout() { + vbm "$bufferTTL"; # Time-to-live (seconds) for each buffer round + vbm "$scriptTTL_TE"; # Time element at the end of which script terminates + vbm "$dirTmpDefault"; # Default parent of working directory + # Script Metadata + vbm "$scriptName"; # Basename of script file. + vbm "$scriptVersion"; # Version of script. + vbm "$scriptURL"; # Website hosting this script. + vbm "$scriptTimeStartEpoch"; # Start time of script in epoch seconds + vbm "$scriptTimeStart"; # YYYYmmddTHHMMSS.NNNNNNNNN + vbm "$scriptHostname" # Hostname of system running this script. + vbm "$PATH"; # PATH env. var. + vbm "$ageVersion"; # Version of age (encryption program) + vbm "$ageURL"; # Website hosting age. +} # Display script variables +magicWriteVersion() { + # Desc: Appends time-stamped VERSION to pathout_tar + # Usage: magicWriteVersion + # Input: vars: pathout_tar, dir_tmp + # Input: vars: scriptVersion, scriptURL, ageVersion, ageURL, scriptHostname + # Input: array: recPubKeysValid + # Output: appends tar (pathout_tar) + # Depends: bash 5.0.3, dateTimeShort(), appendArgTar() + local fn fileoutVersion contentVersion pubKeyIndex pubKeyIndex + + # Save function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Starting magicWriteVersion() function."; + # Set VERSION file name + fileoutVersion="$(dateTimeShort)..VERSION"; + + # Gather VERSION data in contentVersion + contentVersion="scriptVersion=$scriptVersion"; + #contentVersion="$contentVersion""\\n"; + contentVersion="$contentVersion""\\n""scriptName=$scriptName"; + contentVersion="$contentVersion""\\n""scriptURL=$scriptURL"; + contentVersion="$contentVersion""\\n""ageVersion=$ageVersion"; + contentVersion="$contentVersion""\\n""ageURL=$ageURL"; + contentVersion="$contentVersion""\\n""date=$(date --iso-8601=seconds)"; + contentVersion="$contentVersion""\\n""hostname=$scriptHostname"; + ## Add list of recipient pubkeys + for pubkey in "${recPubKeysValid[@]}"; do + ((pubKeyIndex++)) + contentVersion="$contentVersion""\\n""PUBKEY_$pubKeyIndex=$pubkey"; + done + ## Process newline escapes + contentVersion="$(echo -e "$contentVersion")" + + # Write contentVersion as file fileoutVersion and write-append to pathout_tar + appendArgTar "$contentVersion" "$fileoutVersion" "$pathout_tar" "$dir_tmp" && \ + vbm "STATUS:$fn:Appended $fileoutVersion to $pathout_tar"; + vbm "STATUS:$fn:Finished magicWriteVersion() function."; +} # write version data to pathout_tar via appendArgTar() +magicProcessWriteBuffer() { + # Desc: process and write buffer + # In : vars: bufferTTL scriptHostname label dir_tmp SECONDS + # : vars: timeBufferStartEpoch timeBufferEndEpoch + # : arry: buffer + # Out: file:(pathout_tar) + # Depends: Bash 5.0.3, date 8.30, yell(), vbm(), dateTimeShort(), + ### Note: These arrays should all have the same number of elements: + ### pathouts, fileouts, procFileExts, procStrings + + local fn timeBufferStartLong timeBufferStart bufferDuration bufferDurationStr fileoutBasename + local -a fileouts pathouts + local writeCmd1 writeCmd2 writeCmd3 writeCmd4 + + # Debug:Get function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Started magicProcessWriteBuffer()."; + vbm "DEBUG :$fn:buffer array element count:${#buffer[@]}"; + vbm "DEBUG :$fn:buffer array first element:${buffer[0]}"; + vbm "DEBUG :$fn:buffer array last element :${buffer[-1]}"; + + # Determine file paths (time is start of buffer period) + ## Calculate start time + timeBufferStartLong="$(date --date="@$timeBufferStartEpoch" --iso-8601=seconds)" && \ + vbm "DEBUG :$fn:timeBufferStartLong:$timeBufferStartLong"; # Note start time in 'date' parsable ISO-8601 + timeBufferStart="$(dateTimeShort "$timeBufferStartLong" )" && \ + vbm "DEBUG :$fn:timeBufferStart:$timeBufferStart"; # Note start time YYYYmmddTHHMMSS+zzzz (no separators) + ## Calculate buffer duration string (ISO-8601 duration) + bufferDuration="$((timeBufferEndEpoch - timeBufferStartEpoch))" && \ + vbm "DEBUG :$fn:bufferDuration:$bufferDuration"; # length of time (seconds) stdin was read + bufferDurationStr="$(timeDuration "$bufferDuration")" && \ + vbm "DEBUG :$fn:bufferDurationStr:$bufferDurationStr"; # buffer duration (ISO-8601) + ## Set common basename + fileoutBasename="$timeBufferStart""--""$bufferDurationStr""..""$scriptHostname""$label" && \ + vbm "STATUS:$fn:Set fileoutBasename to:$fileoutBasename"; + ## Determine output file name array + ### in: fileOutBasename cmd_compress_suffix cmd_encrypt_suffix procFileExts + for fileExt in "${procFileExts[@]}"; do + fileouts+=("$fileoutBasename""$fileExt""$cmd_compress_suffix""$cmd_encrypt_suffix") && \ + vbm "STATUS:$fn:Added $fileExt to fileouts:${fileouts[*]}"; + done; + for fileName in "${fileouts[@]}"; do + pathouts+=("$dir_tmp"/"$fileName") && \ + vbm "STATUS:$fn:Added $fileName to pathouts:${pathouts[*]}"; + done; + ## Update pathout_tar + magicInitCheckTar; + + # Process and write buffers to dir_tmp + ## Prepare command strings + writeCmd1="printf \"%s\\\\n\" \"\${buffer[@]}\""; # printf "%s\\n" "${buffer[@]}" + #writeCmd2="" # NOTE: Specified by parsing array procStrings + writeCmd3="$cmd_compress"; + writeCmd4="$cmd_encrypt"; + + ## Process buffer and write to dir_tmp + vbm "DEBUG :$fn:fileouts element count:${#fileouts[@]}"; + vbm "DEBUG :$fn:pathouts element count:${#pathouts[@]}"; + vbm "DEBUG :$fn:procStrings element count:${#pathouts[@]}"; + vbm "DEBUG :$fn:fileouts contents:${fileouts[*]}"; + vbm "DEBUG :$fn:pathouts contents:${pathouts[*]}"; + vbm "DEBUG :$fn:procStrings contents:${pathouts[*]}"; + for index in "${!pathouts[@]}"; do + writeCmd2="${procStrings[$index]}"; + writeCmdAll="$writeCmd1 | $writeCmd2 | $writeCmd3 | $writeCmd4" && vbm "STATUS:$fn:Assembled command:\"$writeCmdAll\""; + eval "$writeCmd1 | $writeCmd2 | $writeCmd3 | $writeCmd4" > "${pathouts[$index]}" && vbm "STATUS:$fn:Wrote command output to ${pathouts[$index]}"; + done; + + # Append dir_tmp files to pathout_tar + wait; # Wait to avoid collision with older magicProcessWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html ) + for index in "${!pathouts[@]}"; do + tar --append --directory="$dir_tmp" --file="$pathout_tar" "${fileouts[$index]}" && \ + vbm "STATUS:$fn:Appended ${pathouts[$index]} to $pathout_tar"; + #appendFileTar "${pathouts[$index]}" "${fileouts[$index]}" "$pathout_tar" "$dir_tmp" && \ + done; + + # Remove secured chunks from dir_tmp + for path in "${pathouts[@]}"; do + rm "$path" && vbm "STATUS:$fn:Removed:$path"; + done; + + vbm "STATUS:$fn:Finished magicProcessWriteBuffer()."; +} # Process and Write buffer +showUsage() { + cat <<'EOF' + USAGE: + cmd | bklog [ options ] + + OPTIONS: + -h, --help + Display help information. + --version + Display script version. + -v, --verbose + Display debugging info. + -e, --encrypt + Encrypt output. + -r, --recipient [ string pubkey ] + Specify recipient. May be age or ssh pubkey. + May be specified multiple times for multiple pubkeys. + See https://github.com/FiloSottile/age + -o, --output [ path dir ] + Specify output directory to save logs. This option is required + to save log data. + -p, --process-string [ filter command ] [ output file extension] + Specify how to create and name a processed version of the stdin. + For example, if stdin is 'nmea' location data: + + -p "gpsbabel -i nmea -f - -o gpx -F - " ".gpx" + + This option would cause the stdin to 'bklog' to be piped into + the 'gpsbabel' command, interpreted as 'nmea' data, converted + into 'gpx' format, and then appended to the output tar file + as a file with a '.gpx' extension. + This option may be specified multiple times in order to output + results of multiple different processing methods. + -l, --label [ string ] + Specify a label to be included in all output file names. + Ex: 'location' if stdin is location data. + -w, --store-raw [ file extension ] + Specify file extension of file within output tar that contains + raw stdin data. The default behavior is to always save raw stdin + data in a '.stdin' file. Example usage when 'bklog' receives + 'nmea' data from 'gpspipe -r': + + -w ".nmea" + + Stdin data is saved in a '.nmea' file within the output tar. + -W, --no-store-raw + Do not store raw stdin in output tar. + -c, --compress + Compress output with gzip (before encryption if enabled). + -z, --time-zone + Specify time zone. (ex: "America/New_York") + -t, --temp-dir [path dir] + Specify parent directory for temporary working directory. + Default: "/dev/shm" + -R, --recipient-dir [path dir] + Specify directory containing files whose first lines are + to be interpreted as pubkey strings (see '-r' option). Only + one directory may be specified. + -b, --buffer-ttl [integer] + Specify custom buffer period in seconds (default: 300 seconds) + -B, --script-ttl [time element string] + Specify custom script time-to-live in seconds (default: "day") + Valid values: "day", "hour" + + EXAMPLE: (bash script lines) + $ gpspipe -r | /bin/bash bklog -v -e -c -z "UTC" -t "/dev/shm" \ + -r age1mrmfnwhtlprn4jquex0ukmwcm7y2nxlphuzgsgv8ew2k9mewy3rs8u7su5 \ + -r age1ala848kqrvxc88rzaauc6vc5v0fqrvef9dxyk79m0vjea3hagclswu0lgq \ + -R ~/.config/bklog/recipients -w ".nmea" -b 300 -B "day" \ + -o ~/Sync/Logs -l "location" \ + -p "gpsbabel -i nmea -f - -o gpx -F - " ".gpx" \ + -p "gpsbabel -i nmea -f - -o kml -F - " ".kml" +EOF +} # Display information on how to use this script. + +main() { + # Desc: Main function + # Usage: main "$@" + # Inputs: many + # Outputs: file (pathout_tar) + # Depends: many + local fn + + # Debug:Get function name + fn="${FUNCNAME[0]}"; + + vbm "STATUS:$fn:Started function main()."; + # Process arguments + processArguments "$@"; + ## Determine working directory + magicInitWorkingDir; # Sets dir_tmp from argTempDirPriority + ## Set output encryption and compression option strings + ### React to "-e", "-r", and "-R" (encryption recipients) options + magicParseRecipients; # Update cmd_encrypt, cmd_encrypt_suffix + ### React to "-c" ("compression") option + magicParseCompressionArg; # Updates cmd_compress[_suffix] + ## React to "-b" and "-B" (custom buffer and script TTL) options + magicParseCustomTTL; # Sets custom scriptTTL_TE and/or bufferTTL if specified + ## React to "-p" (user-supplied process command and file extension strings) options + magicParseProcessStrings; # Sets arrays: procStrings, procFileExts + ## React to "-l" (output file label) option + magicParseLabel; # sets label (ex: "_location") + ## React to "-v" (verbose) option + magicVerboseReadout; # Display various script variables + + # Perform secondary setup operations + ## Set script lifespan (scriptTTL from scriptTTL_TE) + magicSetScriptTTL "$scriptTTL_TE"; + ## Adjust SECONDS so buffer rounds align with time elements + ### Advance SECONDS the remainder seconds for dividend timeUntilNextDay, divisor bufferTTL + if [[ "$(timeUntilNextDay)" -gt "$bufferTTL" ]]; then + vbm "DEBUG :$fn:SECONDS currently :$SECONDS"; + SECONDS="$(( bufferTTL - ($(timeUntilNextDay) % bufferTTL) ))" && \ + vbm "DEBUG :$fn:SECONDS advanced to:$SECONDS"; + vbm "DEBUG :$fn:current time:$(date --iso-8601=seconds)"; + fi; + ## Init temp working dir + try mkdir "$dir_tmp" && vbm "DEBUG :$fn:Working dir created at dir_tmp:$dir_tmp"; + ## Initialize output tar (set pathout_tar) + magicInitCheckTar; + ## Append VERSION file to tar + magicWriteVersion; + + # Check vital apps, files, dirs + if ! checkapp tar && ! checkdir "$dirOut" "dir_tmp"; then + yell "ERROR:$fn:Critical components missing."; + displayMissing; yell "Exiting."; exit 1; fi + + # MAIN LOOP: Run until script TTL seconds pass + bufferRound=0; + while [[ $SECONDS -lt "scriptTTL" ]]; do + vbm "STATUS:$fn:Starting buffer round:$bufferRound"; + bufferTOD="$(( (1+bufferRound)*bufferTTL ))" && vbm "DEBUG :$fn:bufferTOD:$bufferTOD"; # Set buffer round time-of-death + # Consume stdin to fill buffer until buffer time-of-death (TOD) arrives + while read -r -t "$bufferTTL" line && [[ $SECONDS -lt "$bufferTOD" ]]; do + # Append line to buffer array + buffer+=("$line"); + done; + # Mark time for buffer + ## Initial time + if [[ bufferRound -gt 0 ]]; then + ### Usual case + timeBufferStartEpoch="$timeBufferEndEpoch" && vbm "DEBUG :$fn:timeBufferStartEpoch:$timeBufferStartEpoch"; + elif [[ bufferRound -eq 0 ]]; then + ### Edge case: initial startup + timeBufferStartEpoch="$scriptTimeStartEpoch" && vbm "DEBUG :$fn:timeBufferStartEpoch:$timeBufferStartEpoch"; + else + yell "ERROR:$fn:Invalid bufferRound value."; exit 1; + fi; + ## End Time + timeBufferEndEpoch="$(date +%s)" && vbm "DEBUG :$fn:timeBufferEndEpoch:$timeBufferEndEpoch"; + # Create dir_tmp if missing + if ! [[ -d "$dir_tmp" ]]; then + yell "ERROR:$fn:dir_tmp existence failure:$dir_tmp"; + try mkdir "$dir_tmp" && vbm "DEBUG :$fn:Working dir recreated dir_tmp:$dir_tmp"; fi + # Update cmd_encrypt, cmd_encrypt_suffix + magicParseRecipients; + # Export buffer to asynchronous processing. + magicProcessWriteBuffer & + unset buffer; # Clear buffer array for next bufferRound + # Increment buffer round + ((bufferRound++)); + done; + + # Cleanup + ## Remove dir_tmp + try rm -r "$dir_tmp" && vbm "STATUS:$fn:Removed dir_tmp:$dir_tmp"; + + vbm "STATUS:$fn:Finished function main()."; +} # Main function + +#===END Declare local script functions=== +#==END Define script parameters== + +#==BEGIN Perform work and exit== +main "$@" # Run main function. +exit 0; +#==END Perform work and exit== + +# Author: Steven Baltakatei Sandoval; # License: GPLv3+