304 lines
8.8 KiB
Bash
304 lines
8.8 KiB
Bash
#!/bin/bash
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#==========================================================
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# Simple Note System, v2.0a8
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# Copyright 2014, Xenese Labs/Sicron-Perion XNF
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#==========================================================
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if [ -z "$HOME" ]; then HOME=/home/"$(whoami)"; fi
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PROD_STR="Simple Note System"
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readonly VER_STR="v2.0a8"
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readonly ROOT_DIR="$HOME"/.config/xenlabs/sns
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readonly NOTES_DIR="$ROOT_DIR"/notes
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readonly TMP_DIR="$ROOT_DIR"/tmp
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readonly CONFIG_FILE="$ROOT_DIR/sns.conf"
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# Section: Functions
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function w_conf {
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if [ ! -r "$ROOT_DIR" ]; then mkdir -p "$ROOT_DIR"; fi
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if [ ! -d "$TMP_DIR" ]; then mkdir -p "$TMP_DIR" ; fi
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cat > "$CONFIG_FILE" << EOF
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#==========================================================
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# Simple Note System Config, v2.0a8
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# Copyright 2014, Xenese Labs/Sicron-Perion XNF
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#==========================================================
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#File extension to use (for listing notes)
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EXT=note
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#Preferred Editor
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if [ -z "$EDITOR" ]; then
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EDITOR=vim
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fi
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#Encryption
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#WARNING: ANY PREVIOUSLY UNENCRYPTED NOTES WILL BE LOST
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#ENCRYPTION="TRUE"
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ENCRYPTION="FALSE"
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PUBKEY=""
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EOF
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chmod 600 "$CONFIG_FILE"
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}
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function pause {
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read -rp " Press [Enter] to continue."
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echo ""
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}
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function help {
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echo ""
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echo "usage: sns [-ce] NAME NOTEBOOK SECTION"
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echo " sns [-d ] NAME NOTEBOOK SECTION"
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echo " sns [-lp] NOTEBOOK"
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echo " sns [-w ]"
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echo " sns [-h ]"
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echo ""
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echo " -c | --create : Create note"
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echo " -d | --delete : Delete note"
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echo " -e | --edit : Open note for editing"
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echo " -h | --help : Display this message"
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echo " -p | --print : Print note to console"
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echo " -l | --list : List all notes in NOTEBOOK"
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echo " -w | --wconf : Rewrite default configuration"
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echo ""
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}
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function p_header(){
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printf "TITLE: %s\nDATE: %s\n" "$NAME" "$(date)"
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}
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function encrypt(){
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# This function, given a recipient, $PUBKEY; a file to encrypt, $TMP_NOTE; and an
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# output file, "$NOTE", will encrypt $TMP_NOTE to $NOTE against $PUBKEY's private
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# GPG key.
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gpg -r "$PUBKEY" -o "$NOTE" -e "$TMP_NOTE"
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}
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function decrypt(){
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# This function, given a recipient, $PUBKEY; a file to decrypt, $TMP_NOTE; and an
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# output file, "$NOTE", will decrpyt $TMP_NOTE to $NOTE against $PUBKEY's private
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# GPG key.
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gpg -d "$NOTE"
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}
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function create(){
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if [ -e "$NOTE" ]; then
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printf "\nERROR: Note already exists\nHint: use -e to edit the note.\n"
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exit
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else
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mkdir -p "$NOTE_DIR"
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fi
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if [ -z "$ENCRYPTION" ]; then
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echo "TITLE: $NAME" > "$NOTE"
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echo "DATE: $(date)" >> "$NOTE"
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elif [ "$ENCRYPTION" == "TRUE" ]; then
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TMP_NOTE="$TMP_DIR"/"$SESSION_ID"
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p_header > "$TMP_NOTE"
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encrypt
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fi
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if [ -e "$NOTE" ]; then
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echo "Created note: $NOTEBOOK/$SECTION/$NAME."
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fi
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}
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function delete(){
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if [ "$DELETE" == "TRUE" ]; then
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if [ -e "$NOTE" ]; then
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rm "$NOTE"
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echo ""
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echo "Deleted note: $NOTEBOOK/$SECTION/$NAME."
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exit
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else
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echo ""
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echo "ERROR: Note $NOTEBOOK/$SECTION/$NAME does not exist."
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exit
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fi
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fi
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}
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function edit(){
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if [ ! -r "$NOTE" ]; then
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echo "ERROR: Note cannot be opened for editing."
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exit 40;
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fi
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if [ "$ENCRYPTION" == "TRUE" ]; then
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cp "$NOTE" "$NOTE".bk
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if [ ! -d "$ROOT_DIR"/tmp ]; then mkdir "$ROOT_DIR"/tmp; fi
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TMP_NOTE="$TMP_DIR/$SESSION_ID"
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decrypt > "$TMP_NOTE"
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else TMP_NOTE="$NOTE"; fi
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if [ -z "$CREATE" ]; then printf "\nEDIT %s" "$(date)" >> "$TMP_NOTE"; fi
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"$EDITOR" "$TMP_NOTE"
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if [ "$ENCRYPTION" == "TRUE" ]; then
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rm "$NOTE"
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encrypt;
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if [ -r "$NOTE" ]; then rm "$NOTE".bk; fi
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fi
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}
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function print(){
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if [ -r "$NOTE" ]; then
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if [ -z "$CREATE" ]; then
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if [ "$ENCRYPTION" == "TRUE" ]; then
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decrypt
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else
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cat "$NOTE"
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fi
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else
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printf "\nERROR: Note cannot be found.\n"
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fi
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fi
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}
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function list(){
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if [ -d "$NOTES_DIR"/"$NOTEBOOK" ]; then
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printf "+%s\n" "$NOTEBOOK"
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find "$NOTES_DIR"/"$NOTEBOOK" -type f | while read -r NOTE; do
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printf " -%s\n" "$(basename \"$NOTE\" | cut -d . -f 1 )"
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done
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fi
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}
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# End Section: Functions
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###############################################################################
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#==============================================================================
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# Begin Main Program
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#==============================================================================
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###############################################################################
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#==============================================================================
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# Section: Configuration / Stage 1
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#==============================================================================
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if [ -r "$CONFIG_FILE" ]; then
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source "$CONFIG_FILE"
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else
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create_sns_root
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source "$CONFIG_FILE"
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fi
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if [ "$ENCRYPTION" == "TRUE" ]; then
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if [ -z "$PUBKEY" ]; then
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ERR_NO_KEY="TRUE"
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ENCRYPTION="FALSE"
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fi
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command -v gpg >/dev/null 2>&1 ||\
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{ ERR_NO_GPG="TRUE"; ENCRYPTION="FALSE"; }
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fi
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if [ "$ENCRYPTION" == "TRUE" ]; then
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PROD_STR="Simple Note System (Encryption Enabled)"
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if [ ! -d "$ROOT_DIR"/tmp ]; then
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mkdir -p "$ROOT_DIR"/tmp
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fi
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fi
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echo "$PROD_STR, $VER_STR"
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if [ -z "$EDITOR" ]; then
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>&2 echo "Error no editor specified in environment."
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elif [ -n "$ERR_NO_GPG" ]; then
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>&2 echo " Error: Encryption was specified, but GPG is not installed."
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exit 100
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elif [ -n "$ERR_NO_KEY" ]; then
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>&2 echo " Error: No GPG recipient was provided in $CONFIG_FILE. "
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exit 110
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fi
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#==============================================================================
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# End Section: Configuration / Stage 1
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#==============================================================================
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#==============================================================================
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# Section: Argument Parsing / Stage 2
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#==============================================================================
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NAME=""
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NOTEBOOK=""
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SECTION=""
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if [ -z "$1" ]; then help; exit 20
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else
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ARGS=( "$@" )
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for ARG in "${ARGS[@]}"; do
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if [ "$ARG" = "-c" ] || [ "$ARG" = "--create" ]; then CREATE="TRUE"
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elif [ "$ARG" = "-d" ] || [ "$ARG" = "--delete" ]; then DELETE="TRUE"
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elif [ "$ARG" = "-e" ] || [ "$ARG" = "--edit" ]; then EDIT="TRUE"
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elif [ "$ARG" = "-ce" ] || [ "$ARG" = "-ec" ]; then EDIT="TRUE"; CREATE="TRUE"
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elif [ "$ARG" = "-p" ] || [ "$ARG" = "--print" ]; then PRINT="TRUE"
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elif [ "$ARG" = "-l" ] || [ "$ARG" = "--list" ]; then LIST="TRUE"
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elif [ "$ARG" = "-h" ] || [ "$ARG" == "--help" ]; then help; exit 0
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elif [ "$ARG" = "-w" ] || [ "$ARG" == "--wconf" ]; then create_sns_root; exit 0
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else
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if [ -z "$NAME" ] && [ -n "$ARG" ]; then NAME="$ARG"
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elif [ -z "$NOTEBOOK" ] && [ -n "$ARG" ]; then NOTEBOOK="$ARG"
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elif [ -z "$SECTION" ] && [ -n "$ARG" ]; then SECTION="$ARG"
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fi
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fi
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done
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if [ -n "$NAME" ] && [ -z "$NOTEBOOK" ] && [ -n "$LIST" ]; then
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# If we got a note title above, but no notebook, and the list option
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# was specified, we assume that the detected note title is actually a
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# notebook name.
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NOTEBOOK="$NAME"
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NAME=""
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fi
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fi
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# Note: w_conf and help have highest priority, as they are the only functions
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# that can work without any arguments.
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#==============================================================================
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# End Section: Argument Parsing / Stage 2
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#==============================================================================
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#==============================================================================
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# Section: Actions / Stage 3
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#==============================================================================
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# List only requires a notebook, and is exclusive.
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if [ -z "$NOTEBOOK" ]; then
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echo " ERROR: Insufficient arguments:"
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echo " Notebook not specified"
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exit 30
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fi
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if [ -n "$LIST" ]; then
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list
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exit 0
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fi
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#All other functions require a note title and notebook.
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if [ -z "$NAME" ]; then
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echo " ERROR: Insufficient arguments:"
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echo " Title not specified"
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exit 30
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fi
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SESSION_ID="$RANDOM"
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NOTE_DIR="$NOTES_DIR"/"$NOTEBOOK"/"$SECTION"/
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if [ "$ENCRYPTION" == "TRUE" ]; then readonly NOTE="$NOTE_DIR""$NAME"."$EXT".gpg
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else readonly NOTE="$NOTE_DIR""$NAME"."$EXT"
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fi
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if [ "$PRINT" == "TRUE" ]; then print; exit 0; fi
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if [ "$DELETE" == "TRUE" ]; then delete; exit 0; fi
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if [ "$CREATE" == "TRUE" ]; then create; fi
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if [ "$EDIT" == "TRUE" ]; then edit; fi
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#==============================================================================
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# End Section: Actions / Stage 3
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#============================================================================== |