Notify-send.sh scripts

2 files changed, 394 insertions, 0 deletions

diff --git a/.local/bin/notify-action.sh b/.local/bin/notify-action.sh
new file mode 100755
index 0000000..7b8dbb0
--- /dev/null
+++ b/.local/bin/notify-action.sh
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+GDBUS_MONITOR_PID=/tmp/notify-action-dbus-monitor.$$.pid
+GDBUS_MONITOR=(gdbus monitor --session --dest org.freedesktop.Notifications --object-path /org/freedesktop/Notifications)
+
+NOTIFICATION_ID="$1"
+if [[ -z "$NOTIFICATION_ID" ]]; then
+    echo "no notification id passed: $@"
+    exit 1;
+fi
+shift
+
+ACTION_COMMANDS=("$@")
+if [[ -z "$ACTION_COMMANDS" ]]; then
+    echo "no action commands passed: $@"
+    exit 1;
+fi
+
+cleanup() {
+    rm -f "$GDBUS_MONITOR_PID"
+}
+
+create_pid_file(){
+    rm -f "$GDBUS_MONITOR_PID"
+    umask 077
+    touch "$GDBUS_MONITOR_PID"
+}
+
+invoke_action() {
+    invoked_action_id="$1"
+    local action="" cmd=""
+    for index in "${!ACTION_COMMANDS[@]}"; do
+        if [[ $((index % 2)) == 0 ]]; then
+            action="${ACTION_COMMANDS[$index]}"
+        else
+            cmd="${ACTION_COMMANDS[$index]}"
+            if [[ "$action" == "$invoked_action_id" ]]; then
+                bash -c "${cmd}" &
+            fi
+        fi
+    done
+}
+
+monitor() {
+
+    create_pid_file
+    ( "${GDBUS_MONITOR[@]}" & echo $! >&3 ) 3>"$GDBUS_MONITOR_PID" | while read -r line
+    do
+        local closed_notification_id="$(sed '/^\/org\/freedesktop\/Notifications: org.freedesktop.Notifications.NotificationClosed (uint32 \([0-9]\+\), uint32 [0-9]\+)$/!d;s//\1/' <<< "$line")"
+        if [[ -n "$closed_notification_id" ]]; then
+           if [[ "$closed_notification_id" == "$NOTIFICATION_ID" ]]; then
+               invoke_action close
+               break
+           fi
+        else
+            local action_invoked="$(sed '/\/org\/freedesktop\/Notifications: org.freedesktop.Notifications.ActionInvoked (uint32 \([0-9]\+\), '\''\(.*\)'\'')$/!d;s//\1:\2/' <<< "$line")"
+            IFS=: read invoked_id action_id <<< "$action_invoked"
+            if [[ "$invoked_id" == "$NOTIFICATION_ID" ]]; then
+                invoke_action "$action_id"
+                break
+            fi
+        fi
+    done
+    kill $(<"$GDBUS_MONITOR_PID")
+    cleanup
+}
+
+monitor
diff --git a/.local/bin/notify-send.sh b/.local/bin/notify-send.sh
new file mode 100755
index 0000000..4149966
--- /dev/null
+++ b/.local/bin/notify-send.sh
@@ -0,0 +1,326 @@
+#!/usr/bin/env bash
+
+# notify-send.sh - drop-in replacement for notify-send with more features
+# Copyright (C) 2015-2021 notify-send.sh authors (see AUTHORS file)
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Desktop Notifications Specification
+# https://developer.gnome.org/notification-spec/
+
+VERSION=1.2
+NOTIFY_ARGS=(--session
+             --dest org.freedesktop.Notifications
+             --object-path /org/freedesktop/Notifications)
+EXPIRE_TIME=-1
+APP_NAME="${0##*/}"
+REPLACE_ID=0
+URGENCY=1
+HINTS=()
+SUMMARY_SET=n
+
+help() {
+    cat <<EOF
+Usage:
+  notify-send.sh [OPTION...] <SUMMARY> [BODY] - create a notification
+
+Help Options:
+  -?|--help                         Show help options
+
+Application Options:
+  -u, --urgency=LEVEL               Specifies the urgency level (low, normal, critical).
+  -t, --expire-time=TIME            Specifies the timeout in milliseconds at which to expire the notification.
+  -f, --force-expire                Forcefully closes the notification when the notification has expired.
+  -a, --app-name=APP_NAME           Specifies the app name for the icon.
+  -i, --icon=ICON[,ICON...]         Specifies an icon filename or stock icon to display.
+  -c, --category=TYPE[,TYPE...]     Specifies the notification category.
+  -h, --hint=TYPE:NAME:VALUE        Specifies basic extra data to pass. Valid types are int, double, string and byte.
+  -o, --action=LABEL:COMMAND        Specifies an action. Can be passed multiple times. LABEL is usually a button's label. COMMAND is a shell command executed when action is invoked.
+  -d, --default-action=COMMAND      Specifies the default action which is usually invoked by clicking the notification.
+  -l, --close-action=COMMAND        Specifies the action invoked when notification is closed.
+  -p, --print-id                    Print the notification ID to the standard output.
+  -r, --replace=ID                  Replace existing notification.
+  -R, --replace-file=FILE           Store and load notification replace ID to/from this file.
+  -s, --close=ID                    Close notification.
+  -v, --version                     Version of the package.
+
+EOF
+}
+
+convert_type() {
+    case "$1" in
+        int) echo int32 ;;
+        double|string|byte) echo "$1" ;;
+        *) echo error; return 1 ;;
+    esac
+}
+
+make_action_key() {
+    echo "$(tr -dc _A-Z-a-z-0-9 <<< \"$1\")${RANDOM}"
+}
+
+make_action() {
+    local action_key="$1"
+    printf -v text "%q" "$2"
+    echo "\"$action_key\", \"$text\""
+}
+
+make_hint() {
+    type=$(convert_type "$1")
+    [[ ! $? = 0 ]] && return 1
+    name="$2"
+    [[ "$type" = string ]] && command="\"$3\"" || command="$3"
+    echo "\"$name\": <$type $command>"
+}
+
+concat_actions() {
+    local result="$1"
+    shift
+    for s in "$@"; do
+        result="$result, $s"
+    done
+    echo "[$result]"
+}
+
+concat_hints() {
+    local result="$1"
+    shift
+    for s in "$@"; do
+        result="$result, $s"
+    done
+    echo "{$result}"
+}
+
+parse_notification_id(){
+    sed 's/(uint32 \([0-9]\+\),)/\1/g'
+}
+
+notify() {
+    local actions="$(concat_actions "${ACTIONS[@]}")"
+    local hints="$(concat_hints "${HINTS[@]}")"
+
+    NOTIFICATION_ID=$(gdbus call "${NOTIFY_ARGS[@]}"  \
+                            --method org.freedesktop.Notifications.Notify \
+                            -- \
+                            "$APP_NAME" "$REPLACE_ID" "$ICON" "$SUMMARY" "$BODY" \
+                            "${actions}" "${hints}" "int32 $EXPIRE_TIME" \
+                          | parse_notification_id)
+
+    if [[ -n "$STORE_ID" ]] ; then
+        echo "$NOTIFICATION_ID" > "$STORE_ID"
+    fi
+    if [[ -n "$PRINT_ID" ]] ; then
+        echo "$NOTIFICATION_ID"
+    fi
+
+    if [[ -n "$FORCE_EXPIRE" ]] ; then
+        SLEEP_TIME="$( LC_NUMERIC=C printf %f "${EXPIRE_TIME}e-3" )"
+        ( sleep "$SLEEP_TIME" ; notify_close "$NOTIFICATION_ID" ) &
+    fi
+
+    maybe_run_action_handler
+}
+
+notify_close () {
+    gdbus call "${NOTIFY_ARGS[@]}"  --method org.freedesktop.Notifications.CloseNotification "$1" >/dev/null
+}
+
+process_urgency() {
+    case "$1" in
+        low) URGENCY=0 ;;
+        normal) URGENCY=1 ;;
+        critical) URGENCY=2 ;;
+        *) echo "Unknown urgency $URGENCY specified. Known urgency levels: low, normal, critical."
+           exit 1
+           ;;
+    esac
+}
+
+process_category() {
+    IFS=, read -a categories <<< "$1"
+    for category in "${categories[@]}"; do
+        hint="$(make_hint string category "$category")"
+        HINTS=("${HINTS[@]}" "$hint")
+    done
+}
+
+process_hint() {
+    IFS=: read type name command <<< "$1"
+    if [[ -z "$name" ]] || [[ -z "$command" ]] ; then
+        echo "Invalid hint syntax specified. Use TYPE:NAME:VALUE."
+        exit 1
+    fi
+    hint="$(make_hint "$type" "$name" "$command")"
+    if [[ ! $? = 0 ]] ; then
+        echo "Invalid hint type \"$type\". Valid types are int, double, string and byte."
+        exit 1
+    fi
+    HINTS=("${HINTS[@]}" "$hint")
+}
+
+maybe_run_action_handler() {
+    if [[ -n "$NOTIFICATION_ID" ]] && [[ -n "$ACTION_COMMANDS" ]]; then
+        local notify_action="$(dirname ${BASH_SOURCE[0]})/notify-action.sh"
+        if [[ -x "$notify_action" ]] ; then
+            "$notify_action" "$NOTIFICATION_ID" "${ACTION_COMMANDS[@]}" &
+            exit 0
+        else
+            echo "executable file not found: $notify_action"
+            exit 1
+        fi
+    fi
+}
+
+process_action() {
+    IFS=: read name command <<<"$1"
+    if [[ -z "$name" ]] || [[ -z "$command" ]]; then
+        echo "Invalid action syntax specified. Use NAME:COMMAND."
+        exit 1
+    fi
+
+    local action_key="$(make_action_key "$name")"
+    ACTION_COMMANDS=("${ACTION_COMMANDS[@]}" "$action_key" "$command")
+
+    local action="$(make_action "$action_key" "$name")"
+    ACTIONS=("${ACTIONS[@]}" "$action")
+}
+
+process_special_action() {
+    action_key="$1"
+    command="$2"
+
+    if [[ -z "$action_key" ]] || [[ -z "$command" ]]; then
+        echo "Command must not be empty"
+        exit 1
+    fi
+
+    ACTION_COMMANDS=("${ACTION_COMMANDS[@]}" "$action_key" "$command")
+
+    if [[ "$action_key" != close ]]; then
+        local action="$(make_action "$action_key" "$name")"
+        ACTIONS=("${ACTIONS[@]}" "$action")
+    fi
+}
+
+process_posargs() {
+    if [[ "$1" = -* ]] && ! [[ "$positional" = yes ]] ; then
+        echo "Unknown option $1"
+        exit 1
+    else
+        if [[ "$SUMMARY_SET" = n ]]; then
+            SUMMARY="$1"
+            SUMMARY_SET=y
+        else
+            BODY="$1"
+        fi
+    fi
+}
+
+while (( $# > 0 )) ; do
+    case "$1" in
+        -\?|--help)
+            help
+            exit 0
+            ;;
+        -v|--version)
+            echo "${0##*/} $VERSION"
+            exit 0
+            ;;
+        -u|--urgency|--urgency=*)
+            [[ "$1" = --urgency=* ]] && urgency="${1#*=}" || { shift; urgency="$1"; }
+            process_urgency "$urgency"
+            ;;
+        -t|--expire-time|--expire-time=*)
+            [[ "$1" = --expire-time=* ]] && EXPIRE_TIME="${1#*=}" || { shift; EXPIRE_TIME="$1"; }
+            if ! [[ "$EXPIRE_TIME" =~ ^-?[0-9]+$ ]]; then
+                echo "Invalid expire time: ${EXPIRE_TIME}"
+                exit 1;
+            fi
+            ;;
+        -f|--force-expire)
+            FORCE_EXPIRE=yes
+            ;;
+        -a|--app-name|--app-name=*)
+            [[ "$1" = --app-name=* ]] && APP_NAME="${1#*=}" || { shift; APP_NAME="$1"; }
+            ;;
+        -i|--icon|--icon=*)
+            [[ "$1" = --icon=* ]] && ICON="${1#*=}" || { shift; ICON="$1"; }
+            ;;
+        -c|--category|--category=*)
+            [[ "$1" = --category=* ]] && category="${1#*=}" || { shift; category="$1"; }
+            process_category "$category"
+            ;;
+        -h|--hint|--hint=*)
+            [[ "$1" = --hint=* ]] && hint="${1#*=}" || { shift; hint="$1"; }
+            process_hint "$hint"
+            ;;
+        -o | --action | --action=*)
+            [[ "$1" == --action=* ]] && action="${1#*=}" || { shift; action="$1"; }
+            process_action "$action"
+            ;;
+        -d | --default-action | --default-action=*)
+            [[ "$1" == --default-action=* ]] && default_action="${1#*=}" || { shift; default_action="$1"; }
+            process_special_action default "$default_action"
+            ;;
+        -l | --close-action | --close-action=*)
+            [[ "$1" == --close-action=* ]] && close_action="${1#*=}" || { shift; close_action="$1"; }
+            process_special_action close "$close_action"
+            ;;
+        -p|--print-id)
+            PRINT_ID=yes
+            ;;
+        -r|--replace|--replace=*)
+            [[ "$1" = --replace=* ]] && REPLACE_ID="${1#*=}" || { shift; REPLACE_ID="$1"; }
+            ;;
+        -R|--replace-file|--replace-file=*)
+            [[ "$1" = --replace-file=* ]] && filename="${1#*=}" || { shift; filename="$1"; }
+            if [[ -s "$filename" ]]; then
+                REPLACE_ID="$(< "$filename")"
+            fi
+            STORE_ID="$filename"
+            ;;
+        -s|--close|--close=*)
+            [[ "$1" = --close=* ]] && close_id="${1#*=}" || { shift; close_id="$1"; }
+            # always check that --close provides a numeric value
+            if [[ -z "$close_id" || ! "$close_id" =~ ^[0-9]+$ ]]; then
+              echo "Invalid close id: '$close_id'"
+              exit 1
+            fi
+            notify_close "$close_id"
+            exit $?
+            ;;
+        --)
+            positional=yes
+            ;;
+        *)
+            process_posargs "$1"
+            ;;
+    esac
+    shift
+done
+
+# always force --replace and --replace-file to provide a numeric value; 0 means no id provided
+if [[ -z "$REPLACE_ID" || ! "$REPLACE_ID" =~ ^[0-9]+$ ]]; then
+    REPLACE_ID=0
+fi
+
+# urgency is always set
+HINTS=("$(make_hint byte urgency "$URGENCY")" "${HINTS[@]}")
+
+if [[ "$SUMMARY_SET" = n ]] ; then
+    help
+    exit 1
+else
+    notify
+fi