X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02.git/blobdiff_plain/d6896d3b7c321ec6a62edde16f53794ca12975bd..3f9df02d779f83f3a6a564d667029cffcf6ce7e6:/exec/bkgpslog

diff --git a/exec/bkgpslog b/exec/bkgpslog
index 900b8c4..724b6e9 100755
--- a/exec/bkgpslog
+++ b/exec/bkgpslog
@@ -5,7 +5,7 @@
 # Usage: bkgpslog --output [output dir]
 
 #==BEGIN Define script parameters==
-PATH="/opt/bktei:$PATH"         # Add default baltakatei script install directory to PATH (necessary for other bk scripts)
+PATH="$HOME/.local/bin:$PATH"   # Add "$(systemd-path user-binaries)" path in case apps saved there
 SCRIPT_HOSTNAME=$(hostname)     # Save hostname of system running this script.
 SCRIPT_VERSION="bkgpslog 0.0.1" # Define version of script.
 SCRIPT_TIME_SHORT="$(date +%Y%m%dT%H%M%S%z)" # Save current date & time in ISO-8601 format.
@@ -14,6 +14,8 @@ SCRIPT_DATE_SHORT="$(date +%Y%m%d)"          # Save current date in ISO-8601 for
 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
 
 #===BEGIN Declare local script functions===
 checkapp() {
@@ -140,8 +142,23 @@ showUsage() {
     echoerr "    -v, --verbose"
     echoerr "            Display debugging info."
     echoerr
+    echoerr "    -e, --encrypt"
+    echoerr "            Encrypt output."
+    echoerr
+    echoerr "    -r, --recipient [ pubkey string ]"
+    echoerr "            Specify recipient."
+    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 "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 "$SCRIPT_VERSION"
@@ -173,10 +190,14 @@ processArguments() {
 	#echoerr "DEBUG:Starting processArguments while loop."
 	#echoerr "DEBUG:Provided arguments are:""$*"
 	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.
+	    -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.
+	    -e | --encrypt) OPTION_ENCRYPT="true"; vbm "DEBUG:Encrypted output mode enabled.";;
+	    -r | --recipient) # Add 'age' recipient via public key string
+		recPubKeys+=("$2"); vbm "pubkey added:""$2"; shift;;
+	    -c | --compress) OPTION_COMPRESS="true"; vbm "DEBUG:Compressed output mode enabled.";;
 	    *) echoerr "ERROR: Unrecognized argument."; exit 1;; # Handle unrecognized options.
 	esac
 	shift
@@ -255,8 +276,48 @@ dateTimeShort(){
 } # Get date&time without separators
 main() {
     processArguments "$@" # Process arguments.
-    if checkapp gpspipe && checkdir "$DIROUT"; then
+    if [[ "$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 $pubkey ";
+		    vbm "Added pubkey for forming age recipient string:""$pubkey";
+		    vbm "DEBUG:recipients:""$recipients";
+		else
+		    yell "ERROR:Exit code ""$?"". 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 [[ "$OPTION_COMPRESS" = "true" ]]; then # Check if compression option active
+	if checkapp gzip; then # Check if gzip available
+	    CMD_COMPRESS="gzip ";
+	    CMD_COMPRESS_SUFFIX=".gz";
+	else
+	    yell "ERROR:Compression enabled but \"gzip\" not found. Exiting."; exit 1;
+	fi
+    else
+	CMD_COMPRESS="tee /dev/null ";
+	CMD_COMPRESS_SUFFIX="";
+	vbm "DEBUG:Compression not enabled."
+    fi
+    
+    
+    if checkapp gpspipe && checkdir "$DIROUT"; then
+	
 	# # Set script lifespan to end at start of next day
 	# if ! scriptTTL="$(timeUntilNextDay)"; then
 	#     if [[ "$scriptTTL" -eq 0 ]]; then
@@ -284,15 +345,19 @@ main() {
 	    ((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="$FILEOUT_BASENAME".kml ;
+	    FILEOUT_NMEA="$FILEOUT_BASENAME".nmea"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
+	    FILEOUT_GPX="$FILEOUT_BASENAME".gpx"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
+	    FILEOUT_KML="$FILEOUT_BASENAME".kml"$CMD_COMPRESS_SUFFIX""$CMD_ENCRYPT_SUFFIX" ;
+	    # Define GPS conversion commands
+	    CMD_CONV_NMEA="tee /dev/null "
+	    CMD_CONV_GPX="gpsbabel -i nmea -f - -o gpx -F - "
+	    CMD_CONV_KML="gpsbabel -i nmea -f - -o kml -F - "
 	    # 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"/"$FILEOUT_KML"  & # Save KML format
+	    # Execute processing and save command string
+	    echo "$buffer" | $CMD_CONV_NMEA | $CMD_COMPRESS | $CMD_ENCRYPT > "$DIROUT"/"$FILEOUT_NMEA" & # Save NMEA format
+	    echo "$buffer" | $CMD_CONV_GPX  | $CMD_COMPRESS | $CMD_ENCRYPT > "$DIROUT"/"$FILEOUT_GPX" & # Save GPX format
+	    echo "$buffer" | $CMD_CONV_KML  | $CMD_COMPRESS | $CMD_ENCRYPT > "$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;