X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/blobdiff_plain/c2aaff78bd38230ab42fcb7509276dff7d0d9b58..ea4821d62b4a15c579da5941090f8c5df30c2a17:/exec/bkgpslog?ds=sidebyside diff --git a/exec/bkgpslog b/exec/bkgpslog index 999775e..6a4e0d1 100755 --- a/exec/bkgpslog +++ b/exec/bkgpslog @@ -2,18 +2,32 @@ # Desc: Records gps data until midnight # Author: Steven Baltakatei Sandoval; License: GPLv3+ -# Usage: bkgpslog --output [output dir] +# Usage: bkgpslog -o [output dir] #==BEGIN Define script parameters== -PATH="/opt/bktei:$PATH" # Add default baltakatei script install directory to PATH (necessary for other bk scripts) -SCRIPT_HOSTNAME=$(hostname) # Save hostname of system running this script. -SCRIPT_VERSION="bkgpslog 0.0.1" # Define version of script. -SCRIPT_TIME_SHORT="$(date +%Y%m%dT%H%M%S%z)" # Save current date & time in ISO-8601 format. -SCRIPT_DATE_SHORT="$(date +%Y%m%d)" # Save current date in ISO-8601 format. +## Logging Behavior parameters +BUFFER_TTL="60"; # time between file writes +SCRIPT_TTL="day"; # (day|hour) +#### TZ="UTC"; export TZ; # Default time zone; overridden by '--time-zone=[str]' option +DIR_TMP_DEFAULT="/dev/shm"; # Default parent of working directory + +SCRIPT_TIME_START=$(date +%Y%m%dT%H%M%S.%N); +PATH="$HOME/.local/bin:$PATH"; # Add "$(systemd-path user-binaries)" path in case apps saved there +SCRIPT_HOSTNAME=$(hostname); # Save hostname of system running this script. +SCRIPT_VERSION="0.3.1"; # Define version of script. +SCRIPT_NAME="bkgpslog"; # Define basename of script file. +SCRIPT_URL="https://gitlab.com/baltakatei/ninfacyzga-01"; # Define wesite hosting this script. +AGE_VERSION="1.0.0-beta2"; # Define version of age (encryption program) +AGE_URL="https://github.com/FiloSottile/age/releases/tag/v1.0.0-beta2"; # Define website hosting age. 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 recPubKeys # for processArguments function +declare recipients # for main function + +## Initialize variables +OPTION_VERBOSE=""; OPTION_ENCRYPT=""; OPTION_COMPRESS=""; OPTION_TMPDIR=""; #===BEGIN Declare local script functions=== checkapp() { @@ -140,8 +154,31 @@ showUsage() { echoerr " -v, --verbose" echoerr " Display debugging info." echoerr + echoerr " -e, --encrypt" + echoerr " Encrypt output." + echoerr + echoerr " -r, --recipient [ pubkey string ]" + echoerr " Specify recipient. May be age or ssh pubkey." + echoerr " See https://github.com/FiloSottile/age" + echoerr echoerr " -o, --output [ directory ]" echoerr " Specify output directory to save logs." + echoerr + echoerr " -c, --compress" + echoerr " Compress output with gzip (before encryption if enabled)." + echoerr + echoerr " -z, --time-zone" + echoerr " Specify time zone. (ex: \"America/New_York\")" + echoerr + echoerr " -t, --temp-dir" + echoerr " Specify parent directory for temporary working directory." + echoerr " Default: \"/dev/shm\"" + echoerr + echoerr "EXAMPLE: (bash script lines)" + echoerr "/bin/bash bkgpslog -e -c \\" + echoerr "-r age1mrmfnwhtlprn4jquex0ukmwcm7y2nxlphuzgsgv8ew2k9mewy3rs8u7su5 \\" + echoerr "-r age1ala848kqrvxc88rzaauc6vc5v0fqrvef9dxyk79m0vjea3hagclswu0lgq \\" + echoerr "-o ~/Sync/Location" } # Display information on how to use this script. showVersion() { echoerr "$SCRIPT_VERSION" @@ -170,55 +207,106 @@ vbm() { } # Verbose message display function. processArguments() { while [ ! $# -eq 0 ]; do # While number of arguments ($#) is not (!) equal to (-eq) zero (0). - echoerr "DEBUG:Starting processArguments while loop." - echoerr "DEBUG:Provided arguments are:""$*" + #echoerr "DEBUG:Starting processArguments while loop." + #echoerr "DEBUG:Provided arguments are:""$*" case "$1" in - --h | --help) showUsage; exit 1;; # Display usage. + -h | --help) showUsage; exit 1;; # Display usage. --version) showVersion; exit 1;; # Show version - --v | --verbose) OPTION_VERBOSE="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode. - --o | --output) if [ -d "$2" ]; then DIROUT="$2"; vbm "DEBUG:DIROUT:$DIROUT"; shift; fi ;; # Define output directory. - *) echoerr "ERROR: Unrecognized argument."; exit 1;; # Handle unrecognized options. + -v | --verbose) OPTION_VERBOSE="true"; vbm "DEBUG:Verbose mode enabled.";; # Enable verbose mode. + -o | --output) if [ -d "$2" ]; then DIR_OUT="$2"; vbm "DEBUG:DIR_OUT:$DIR_OUT"; shift; fi ;; # Define output directory. + -e | --encrypt) OPTION_ENCRYPT="true"; vbm "DEBUG:Encrypted output mode enabled.";; + -r | --recipient) # Add 'age' recipient via public key string + recPubKeys+=("$2"); vbm "STATUS:pubkey added:""$2"; shift;; + -c | --compress) OPTION_COMPRESS="true"; vbm "DEBUG:Compressed output mode enabled.";; + -z | --time-zone) try setTimeZoneEV "$2"; shift;; + -t | --temp-dir) OPTION_TMPDIR="true" && TMP_DIR_PRIORITY="$2"; shift;; + *) echoerr "ERROR: Unrecognized argument: $1"; echoerr "STATUS:All arguments:$*"; exit 1;; # Handle unrecognized options. esac shift done } # Argument Processing +setTimeZoneEV(){ + # Desc: Set time zone environment variable TZ + # Usage: setTimeZoneEV arg1 + # 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, bash 5 + # Tested on: Debian 10 + ARG1="$1" + local tzDir returnState + 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 "$tzDir"/"$ARG1" ]]; then + yell "ERROR:Invalid time zone argument."; + return 2; + else + # Export ARG1 as TZ environment variable + TZ="$ARG1" && export TZ && returnState="true"; + fi + + # Determine function return code + if [ "$returnState" = "true" ]; then + return 0; + fi +} # Exports TZ environment variable timeUntilNextDay(){ # Desc: Report seconds until next day. + # Version: 1.0.0 # 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="$(timeUntilNextDay)"; then yell "ERROR in if statement"; exit 1; fi + # Depends: date 8, echo 8, yell, try + local returnState TIME_CURRENT TIME_NEXT_DAY SECONDS_UNTIL_NEXT_DAY + TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. TIME_NEXT_DAY="$(date -d "$TIME_CURRENT next day" --iso-8601=date)"; # Produce timestamp of beginning of tomorrow with resolution of 1 second. SECONDS_UNTIL_NEXT_DAY="$(( $(date +%s -d "$TIME_NEXT_DAY") - $(date +%s -d "$TIME_CURRENT") ))" ; # Calculate seconds until closest future midnight (res. 1 second). if [[ "$SECONDS_UNTIL_NEXT_DAY" -gt 0 ]]; then returnState="true"; elif [[ "$SECONDS_UNTIL_NEXT_DAY" -eq 0 ]]; then - returnState="WARNING_ZERO"; + returnState="warning_zero"; yell "WARNING:Reported time until next day exactly zero."; elif [[ "$SECONDS_UNTIL_NEXT_DAY" -lt 0 ]]; then - returnState="WARNING_NEGATIVE"; + returnState="warning_negative"; yell "WARNING:Reported time until next day is negative."; fi try echo "$SECONDS_UNTIL_NEXT_DAY"; # Report - #===Determine function return code=== + # Determine function return code if [[ "$returnState" = "true" ]]; then return 0; - elif [[ "$returnState" = "WARNING_ZERO" ]]; then + elif [[ "$returnState" = "warning_zero" ]]; then return 1; - elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then + elif [[ "$returnState" = "warning_negative" ]]; then return 2; fi } # Report seconds until next day timeUntilNextHour(){ # Desc: Report seconds until next hour + # Version 1.0.0 # Output: stdout: integer seconds until next hour # Output: exit code 0 if stdout > 0; 1 if stdout = 0; 2 if stdout < 0 # Usage: timeUntilNextHour # Usage: if ! myTTL="$(timeUntilNextHour)"; then yell "ERROR in if statement"; exit 1; fi + local returnState TIME_CURRENT TIME_NEXT_HOUR SECONDS_UNTIL_NEXT_HOUR TIME_CURRENT="$(date --iso-8601=seconds)"; # Produce `date`-parsable current timestamp with resolution of 1 second. TIME_NEXT_HOUR="$(date -d "$TIME_CURRENT next hour" --iso-8601=hours)"; # Produce `date`-parsable current time stamp with resolution of 1 second. @@ -226,21 +314,21 @@ timeUntilNextHour(){ if [[ "$SECONDS_UNTIL_NEXT_HOUR" -gt 0 ]]; then returnState="true"; elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -eq 0 ]]; then - returnState="WARNING_ZERO"; + returnState="warning_zero"; yell "WARNING:Reported time until next hour exactly zero."; elif [[ "$SECONDS_UNTIL_NEXT_HOUR" -lt 0 ]]; then - returnState="WARNING_NEGATIVE"; + returnState="warning_negative"; yell "WARNING:Reported time until next hour is negative."; fi try echo "$SECONDS_UNTIL_NEXT_HOUR"; # Report - #===Determine function return code=== + # Determine function return code if [[ "$returnState" = "true" ]]; then return 0; - elif [[ "$returnState" = "WARNING_ZERO" ]]; then + elif [[ "$returnState" = "warning_zero" ]]; then return 1; - elif [[ "$returnState" = "WARNING_NEGATIVE" ]]; then + elif [[ "$returnState" = "warning_negative" ]]; then return 2; fi } # Report seconds until next hour @@ -252,20 +340,281 @@ dateTimeShort(){ TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. TIME_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%dT%H%M%S%z)"; # Produce separator-less current timestamp with resolution 1 second. echo "$TIME_CURRENT_SHORT"; -} # Get date&time without separators -main() { - processArguments "$@" # Process arguments. - if checkapp gpspipe && checkdir "$DIROUT"; then +} # Get YYYYmmddTHHMMSS±zzzz +dateShort(){ + # Desc: Date without separators (YYYYmmdd) + # Usage: dateShort + # Output: stdout: date (ISO-8601, no separators) + local TIME_CURRENT DATE_CURRENT_SHORT + TIME_CURRENT="$(date --iso-8601=seconds)" ; # Produce `date`-parsable current timestamp with resolution of 1 second. + DATE_CURRENT_SHORT="$(date -d "$TIME_CURRENT" +%Y%m%d)"; # Produce separator-less current date with resolution 1 day. + echo "$DATE_CURRENT_SHORT"; +} # Get YYYYmmdd +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: 1.0.3 + # 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 (gnucoreutils), yell, + local returnState argSeconds argPrecision remainder precision witherPrecision + local fullYears fullMonths fullDays fullHours fullMinutes fullSeconds + local displayYears displayMonths displayDays displayHours displayMinutes displaySeconds + local hasYears hasMonths hasDays hasHours hasMinutes hasSeconds + + 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 -gt 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 $witherPrecision; then ((precision--)); fi; + + ### Seconds - # # Set script lifespan to end at start of next day - # if ! scriptTTL="$(timeUntilNextDay)"; then - # if [[ "$scriptTTL" -eq 0 ]]; then - # ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. - # else - # yell "ERROR: timeUntilNextDay exit code $?"; exit 1; - # fi; - # fi; + 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 ) +displayMissing() { + # Desc: Displays missing apps, files, and dirs + # Usage: displayMissing + # Input: associative arrays: appRollCall, fileRollCall, dirRollCall + # Output: stderr messages + #==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 "$missingApps" 1>&2; + fi + #===END Display Missing Apps=== + #===BEGIN Display Missing Files=== + missingFiles="Missing files:" + #for key in "${!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 "$missingFiles" 1>&2; + fi + #===END Display Missing Files=== + + #===BEGIN Display Missing Directories=== + missingDirs="Missing dirs:" + #for key in "${!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 + #===END Display Missing Directories=== + + #==END Display errors== +} # Display missing apps, files, dirs +setScriptTTL() { + #Desc: Sets script TTL + #Usage: setScriptTTL arg1 + #Input: arg1: "day" or "hour" + #Output: scriptTTL + #Depends: timeUntilNextHour or timeUntilNextDay + local ARG1 + ARG1="$1" + if [[ "$ARG1" = "day" ]]; then + # Set script lifespan to end at start of next day + if ! scriptTTL="$(timeUntilNextDay)"; then + if [[ "$scriptTTL" -eq 0 ]]; then + ((scriptTTL++)); # Add 1 because 0 would cause 'timeout' to never timeout. + else + yell "ERROR: timeUntilNextDay exit code $?"; exit 1; + fi; + fi; + elif [[ "$ARG1" = "hour" ]]; then # Set script lifespan to end at start of next hour if ! scriptTTL="$(timeUntilNextHour)"; then if [[ "$scriptTTL" -eq 0 ]]; then @@ -274,30 +623,293 @@ main() { yell "ERROR: timeUntilNextHour exit code $?"; exit 1; fi; fi; - - # Determine buffer lifespan - bufferTTL="60"; - - # Record gps data until script lifespan ends - declare debugCounter; debugCounter="0" - while [[ "$SECONDS" -lt "$scriptTTL" ]]; do - ((debugCounter++)) - # Determine output file paths (time is start of buffer period) - FILEOUT_BASENAME="$(dateTimeShort)""--P""$bufferTTL""S..""$SCRIPT_HOSTNAME""_location" ; # ISO-8601 YYYYmmddTHHMMSS+zzP[$bufferTTL]S - FILEOUT_NMEA="$FILEOUT_BASENAME".nmea ; - FILEOUT_GPX="$FILEOUT_BASENAME".gpx ; - FILEOUT_KML="$FILEOUT_BASENAME".kml ; - # Fill buffer - buffer="$(timeout "$bufferTTL""s" gpspipe -r)"; # Record gpspipe nmea data to buffer for bufferTTL seconds - # Process and save buffers - echo "$buffer" > "$DIROUT"/"$FILEOUT_NMEA" & # Save NMEA format - echo "$buffer" | gpsbabel -i nmea -f - -o gpx -F - > "$DIROUT"/"$FILEOUT_GPX" & # Save GPX format - echo "$buffer" | gpsbabel -i nmea -f - -o kml -F - > "$DIROUT"/"$FILEOUT_KML" & # Save KML format - vbm "DEBUG:Completed buffer session $debugCounter ." 1>&2; - # Reset buffer and filenames - unset buffer FILEOUT_BASENAME FILEOUT_NMEA FILEOUT_GPX FILEOUT_KML; - done + else + yell "ERROR:Invalid argument for setScriptTTL function."; exit 1; + fi +} # Seconds until next (day|hour). +checkMakeTar() { + # Desc: Checks that a valid tar archive exists, creates one otherwise + # Usage: checkMakeTar [ path ] + # Version: 1.0.1 + # 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: try, tar, date + local PATH_TAR returnFlag0 returnFlag1 returnFlag2 + PATH_TAR="$1" + + # Check if file is a valid tar archive + if tar --list --file="$PATH_TAR" 1>/dev/null 2>&1; then + ## T1: return success + returnFlag0="tar valid"; + else + ## F1: Check if file exists + if [[ -f "$PATH_TAR" ]]; then + ### T: Rename file + try mv "$PATH_TAR" "$PATH_TAR""--broken--""$(date +%Y%m%dT%H%M%S)" && \ + returnFlag1="tar moved"; + else + ### F: - + : + fi + ## F2: Create tar archive, return 0 + try tar --create --file="$PATH_TAR" --files-from=/dev/null && \ + returnFlag2="tar created"; fi + + # Determine function return code + if [[ "$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 +appendArgTar(){ + # Desc: Writes first argument to temporary file with arguments as options, then appends file to tar + # Usage: writeArg "$(echo "Data to be written.")" [name of file to be inserted] [tar path] [temp dir] ([cmd1] [cmd2] [cmd3] [cmd4]...) + # Version: 1.0.0 + # Input: arg1: data to be written + # arg2: file name of file to be inserted into tar + # arg3: tar archive path (must exist first) + # arg4: temporary working dir + # arg5+: command strings (ex: "gpsbabel -i nmea -f - -o kml -F - ") + # Output: file written to disk + # Example: decrypt multiple large files in parallel + # appendArgTar "$(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" $HOME/archive.tar /tmp "gpg --decrypt" & + # Depends: bash 5 + + # Save function name + local FN="${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 TAR_PATH="$3"; else yell "ERROR:$FN:Tar archive arg not a file."; exit 1; fi + + # Check temp dir arg + if ! [ -z "$4" ]; then TMP_DIR="$4"; else yell "ERROR:$FN:No temporary working dir set."; exit 1; fi + + # Set command strings + if ! [ -z "$5" ]; then CMD1="$5"; else CMD1="tee /dev/null "; fi # command string 1 + if ! [ -z "$6" ]; then CMD2="$6"; else CMD2="tee /dev/null "; fi # command string 2 + if ! [ -z "$7" ]; then CMD3="$7"; else CMD3="tee /dev/null "; fi # command string 3 + if ! [ -z "$8" ]; then CMD4="$8"; else CMD4="tee /dev/null "; fi # command string 4 + + # # Debug + # yell "DEBUG:STATUS:$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:TAR_PATH:$TAR_PATH" + # yell "DEBUG:STATUS:$FN:TMP_DIR:$TMP_DIR" + + # Write to temporary working dir + echo "$1" | $CMD1 | $CMD2 | $CMD3 | $CMD4 > "$TMP_DIR"/"$FILENAME"; + + # Append to tar + try tar --append --directory="$TMP_DIR" --file="$TAR_PATH" "$FILENAME"; + #yell "DEBUG:STATUS:$FN:Finished appendArgTar()." +} # Append Bash var to file appended to Tar archive +magicWriteVersion() { + # Desc: Appends time-stamped VERSION to PATHOUT_TAR + # Usage: magicWriteVersion + # Version: 0.1.0 + # Input: CONTENT_VERSION, FILEOUT_VERSION, PATHOUT_TAR, DIR_TMP + # Input: SCRIPT_VERSION, SCRIPT_URL, AGE_VERSION, AGE_URL, SCRIPT_HOSTNAME + # Output: appends tar PATHOUT_TAR + # Depends: dateTimeShort, appendArgTar + local CONTENT_VERSION pubKeyIndex + + # Set VERSION file name + FILEOUT_VERSION="$(dateTimeShort)..VERSION"; + + # Gather VERSION data in CONTENT_VERSION + CONTENT_VERSION="SCRIPT_VERSION=$SCRIPT_VERSION"; + #CONTENT_VERSION="$CONTENT_VERSION""\\n"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""SCRIPT_NAME=$SCRIPT_NAME"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""SCRIPT_URL=$SCRIPT_URL"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""AGE_VERSION=$AGE_VERSION"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""AGE_URL=$AGE_URL"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""DATE=$(date --iso-8601=seconds)"; + CONTENT_VERSION="$CONTENT_VERSION""\\n""HOSTNAME=$SCRIPT_HOSTNAME"; + ## Add list of recipient pubkeys + for pubkey in "${recPubKeysValid[@]}"; do + ((pubKeyIndex++)) + CONTENT_VERSION="$CONTENT_VERSION""\\n""PUBKEY_$pubKeyIndex=$pubkey"; + done + ## Process newline escapes + CONTENT_VERSION="$(echo -e "$CONTENT_VERSION")" + + # Write CONTENT_VERSION as file FILEOUT_VERSION and write-append to PATHOUT_TAR + appendArgTar "$CONTENT_VERSION" "$FILEOUT_VERSION" "$PATHOUT_TAR" "$DIR_TMP"; + +} # bkgpslog: write version data to PATHOUT_TAR via appendArgTar() +magicWriteBuffer() { + # Desc: bkgpslog-specific meta function for writing data to DIR_TMP then appending each file to PATHOUT_TAR + # Inputs: PATHOUT_TAR FILEOUT_{NMEA,GPX,KML} CMD_CONV_{NMEA,GPX,KML} CMD_{COMPRESS,ENCRYPT} DIR_TMP + # Depends: yell, try, vbm, appendArgTar, tar + local FN="${FUNCNAME[0]}"; + wait; # Wait to avoid collision with older magicWriteBuffer() instances (see https://www.tldp.org/LDP/abs/html/x9644.html ) + vbm "DEBUG:STATUS:$FN:Started magicWriteBuffer()."; + + # Validate PATHOUT_TAR as tar. + checkMakeTar "$PATHOUT_TAR"; + ## Add VERSION file if checkMakeTar had to create a tar (exited 1) or replace one (exited 2) + if [[ $? -eq 1 ]] || [[ $? -eq 2 ]]; then magicWriteVersion; fi + + # Write bufferBash to PATHOUT_TAR + appendArgTar "$bufferBash" "$FILEOUT_NMEA" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_NMEA" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write NMEA data + appendArgTar "$bufferBash" "$FILEOUT_GPX" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_GPX" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write GPX file + appendArgTar "$bufferBash" "$FILEOUT_KML" "$PATHOUT_TAR" "$DIR_TMP" "$CMD_CONV_KML" "$CMD_COMPRESS" "$CMD_ENCRYPT"; # Write KML file + # Remove secured chunks from DIR_TMP + try rm "$PATHOUT_NMEA" "$PATHOUT_GPX" "$PATHOUT_KML"; + # yell "DEBUG:STATUS:$FN:Finished magicWriteBuffer()."; +} # bkgpslog write function + +main() { + processArguments "$@" # Process arguments. + + # Determine working directory + ## Set DIR_TMP_PARENT to user-specified value if specified + if [[ "$OPTION_TMPDIR" = "true" ]]; then + if [[ -d "$TMP_DIR_PRIORITY" ]]; then + DIR_TMP_PARENT="$OPTION_TMPDIR"; + else + yell "WARNING:Specified temporary working directory not valid:$OPTION_TMPDIR"; + exit 1; + fi + fi + + ## Set DIR_TMP_PARENT to default or fallback otherwise + if [[ -d "$DIR_TMP_DEFAULT" ]]; then + DIR_TMP_PARENT="$DIR_TMP_DEFAULT"; + elif [[ -d /tmp ]]; then + yell "WARNING:/dev/shm not available. Falling back to /tmp ."; + DIR_TMP_PARENT="/tmp"; + else + yell "ERROR:No valid working directory available. Exiting."; + exit 1; + fi + + ## Set DIR_TMP using DIR_TMP_PARENT and nonce (SCRIPT_TIME_START) + DIR_TMP="$DIR_TMP_PARENT"/"$SCRIPT_TIME_START""..bkgpslog" && vbm "DEBUG:Set DIR_TMP to:$DIR_TMP"; # Note: removed at end of main(). + + # Set output encryption and compression option strings + if [[ "$OPTION_ENCRYPT" = "true" ]]; then # Check if encryption option active. + if checkapp age; then # Check that age is available. + for pubkey in "${recPubKeys[@]}"; do # Validate recipient pubkey strings by forming test message + vbm "DEBUG:Testing pubkey string:$pubkey" + if echo "butts" | age -a -r "$pubkey" 1>/dev/null; then + #### Form age recipient string + recipients="$recipients""-r $pubkey "; + vbm "STATUS:Added pubkey for forming age recipient string:""$pubkey"; + vbm "DEBUG:recipients:""$recipients"; + #### Add validated pubkey to recPubKeysValid array + recPubKeysValid+=("$pubkey") && vbm "DEBUG:recPubkeysValid:pubkey added:$pubkey"; + else + yell "ERROR:Exit code ""$?"". Invalid recipient pubkey string. Exiting."; exit 1; + fi + done + vbm "DEBUG:Finished processing recPubKeys array"; + + ## Form age command string + CMD_ENCRYPT="age ""$recipients "; + CMD_ENCRYPT_SUFFIX=".age"; + else + yell "ERROR:Encryption enabled but \"age\" not found. Exiting."; exit 1; + fi + else + CMD_ENCRYPT="tee /dev/null "; + CMD_ENCRYPT_SUFFIX=""; + vbm "DEBUG:Encryption not enabled." + fi + if [[ "$OPTION_COMPRESS" = "true" ]]; then # Check if compression option active + if checkapp gzip; then # Check if gzip available + CMD_COMPRESS="gzip "; + CMD_COMPRESS_SUFFIX=".gz"; + else + yell "ERROR:Compression enabled but \"gzip\" not found. Exiting."; exit 1; + fi + else + CMD_COMPRESS="tee /dev/null "; + CMD_COMPRESS_SUFFIX=""; + vbm "DEBUG:Compression not enabled."; + fi + + # Check that critical apps and dirs are available, displag missing ones. + if ! checkapp gpspipe tar && ! checkdir "$DIR_OUT" "/dev/shm"; then + yell "ERROR:Critical components missing."; + displayMissing; yell "Exiting."; exit 1; fi + + # Set script lifespan + setScriptTTL "$SCRIPT_TTL"; # seconds until next new SCRIPT_TTL (ex: "day" or "hour") + + # File name substring: encoded bufferTTL + bufferTTL_STR="$(timeDuration $BUFFER_TTL)"; + + # Init temp working dir + try mkdir "$DIR_TMP" && vbm "DEBUG:Working dir creatd at:$DIR_TMP"; + + # Initialize 'tar' archive + ## Define output tar path (note: each day gets *one* tar file (Ex: "20200731..hostname_location.[.gpx.gz].tar")) + PATHOUT_TAR="$DIR_OUT"/"$(dateShort)".."$SCRIPT_HOSTNAME""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \ + vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR"; + ## Check that PATHOUT_TAR is a tar. Rename old and create empty one otherwise. + checkMakeTar "$PATHOUT_TAR" && vbm "DEBUG:Confirmed or Created to be a tar:$PATHOUT_TAR"; + ## Append VERSION file to PATHOUT_TAR + magicWriteVersion; + + # Record gps data until script lifespan ends + declare debugCounter; debugCounter="0"; # set debug counter + while [[ "$SECONDS" -lt "$scriptTTL" ]]; do + timeBufferStart="$(dateTimeShort)"; # Note start time + # Determine file paths (time is start of buffer period) + FILEOUT_BASENAME="$timeBufferStart""--""$bufferTTL_STR""..""$SCRIPT_HOSTNAME""_location" && vbm "STATUS:Set FILEOUT_BASENAME to:$FILEOUT_BASENAME"; + ## Files saved to DIR_TMP + FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_NMEA to:$FILEOUT_NMEA"; + FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_GPX to:$FILEOUT_GPX"; + FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" && vbm "STATUS:Set FILEOUT_KML to:$FILEOUT_KML"; + PATHOUT_NMEA="$DIR_TMP"/"$FILEOUT_NMEA" && vbm "STATUS:Set PATHOUT_NMEA to:$PATHOUT_NMEA"; + PATHOUT_GPX="$DIR_TMP"/"$FILEOUT_GPX" && vbm "STATUS:Set PATHOUT_GPX to:$PATHOUT_GPX"; + PATHOUT_KML="$DIR_TMP"/"$FILEOUT_KML" && vbm "STATUS:Set PATHOUT_KML to:$PATHOUT_KML"; + ## Files saved to disk (DIR_OUT) + ### one file per day (Ex: "20200731..hostname_location.[.gpx.gz].tar") + PATHOUT_TAR="$DIR_OUT"/"$(dateShort)".."$SCRIPT_HOSTNAME""_location""$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX".tar && \ + vbm "STATUS:Set PATHOUT_TAR to:$PATHOUT_TAR"; + # Define GPS conversion commands + CMD_CONV_NMEA="tee /dev/null " && vbm "STATUS:Set CMD_CONV_NMEA to:$CMD_CONV_NMEA"; # tee as passthrough + CMD_CONV_GPX="gpsbabel -i nmea -f - -o gpx -F - " && vbm "STATUS:Set CMD_CONV_GPX to:$CMD_CONV_GPX"; # convert NMEA to GPX + CMD_CONV_KML="gpsbabel -i nmea -f - -o kml -F - " && vbm "STATUS:Set CMD_CONV_KML to:$CMD_CONV_KML"; # convert NMEA to KML + # Fill Bash variable buffer + bufferBash="$(timeout "$BUFFER_TTL""s" gpspipe -r)" && vbm "STATUS:Successfully filled bufferBash variable with gpspipe data."; # Record gpspipe nmea data to buffer for bufferTTL seconds + # Process bufferBash, save secured chunk set to DIR_TMP + vbm "STATUS:Beginning to save data to $DIR_TMP"; + magicWriteBuffer & + # Append each secured chunk in memory dir (DIR_TMP) to file on disk (PATHOUT_TAR in DIR_OUT) + vbm "STATUS:DIR_TMP :$DIR_TMP"; + vbm "STATUS:PATHOUT_TAR :$PATHOUT_TAR"; + vbm "STATUS:PATHOUT_NMEA:$PATHOUT_NMEA"; + vbm "STATUS:PATHOUT_GPX:$PATHOUT_GPX"; + vbm "STATUS:PATHOUT_KML:$PATHOUT_KML"; + + # Reset buffer and filenames + unset bufferBash FILEOUT_BASENAME PATHOUT_NMEA PATHOUT_GPX PATHOUT_KML PATHOUT_TAR timeBufferStart; + vbm "DEBUG:Completed buffer session $debugCounter ." 1>&2; + ((debugCounter++)) + done + + # Remove DIR_TMP + try rm -r "$DIR_TMP"; + + vbm "STATUS:Main function finished."; } # Main function. #===END Declare local script functions=== #==END Define script parameters== @@ -307,7 +919,3 @@ main() { main "$@" # Run main function. exit 0; #==END Perform work and exit== - - - - #gpspipe -r -d -l -o "$DIROUT1"/"$FILEOUT1" ;