From bfe278eee5057b02ed1abafb23235739618c75c7 Mon Sep 17 00:00:00 2001
From: Jeremy <jeremytbaxter@protonmail.com>
Date: Thu, 28 Jul 2022 18:31:13 +1200
Subject: [PATCH] Fixed a few issues

---
 matrix-send | 89 +++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 66 insertions(+), 23 deletions(-)
 mode change 100755 => 100644 matrix-send

diff --git a/matrix-send b/matrix-send
old mode 100755
new mode 100644
index 7917dc9..2b3452e
--- a/matrix-send
+++ b/matrix-send
@@ -1,9 +1,7 @@
-#!/bin/sh
-# matrix-send: a super-simple command-line matrix client
+#!/usr/bin/env sh
+# matrix-send: send a message to a Matrix room
 
-Version="dev_rolling"
-
-[ -e /usr/bin/curl ] || printf "\033[31;1merror:\033[0m curl not found\n"
+version="1.0"
 
 ###########################
 #### Generic Functions ####
@@ -14,44 +12,77 @@ error () {
 	exit 1
 }
 
-conf_error () { printf "\033[31;1mconfiguration error:\033[0m $1\n" exit 2
+conf_error () {
+	printf "\033[31;1mconfiguration error:\033[0m $1\n"
+	exit 2
 }
 
 vargrep () {
 	printf "$2\n" | grep "$1" $3
 }
 
+usage () {
+	printf "usage: $0 [-c] [-h] [-V] message room\n"
+	exit 1
+}
+
+help () {
+	cat <<EOF
+$0: send a message to a Matrix room
+Options:
+	-c:    clear cached access tokens
+	-h:    show this help menu
+	-V:    show version and program information
+
+For more information, type 'man matrix-send'.
+https://codeberg.org/jtbx/matrix-send
+EOF
+	exit 0
+}
+
+version () {
+	cat <<EOF
+$0: send a message to a Matrix room
+Version $version
+
+matrix-send is licensed under the GNU General Public License v2.
+Made in New Zealand
+https://codeberg.org/jtbx/matrix-send
+EOF
+	exit 0
+}
+
 ##################################
 #### Configuration Directives ####
 ##################################
 
-Homeserver () {
-	[ -z $1 ] && conf_error "Homeserver not specified in directive Homeserver"
-	homeserver="$1"
+Server () {
+	[ -z $1 ] && conf_error "No argument for directive Server"
+	server="$1"
 }
 
 Username () {
-	[ -z $1 ] && conf_error "Username not specified in directive Username"
+	[ -z $1 ] && conf_error "No argument for directive Username"
 	username="$1"
 }
 
 Password () {
-	[ -z "$1" ] && conf_error "Password not specified in directive Password"
-	password="$*"
+	[ -z $1 ] && conf_error "No argument for directive Password"
+	password="$@"
 }
 
 AccessToken () {
-	[ -z $1 ] && conf_error "Token not specified in directive AccessToken"
+	[ -z $1 ] && conf_error "No argument for directive AccessToken"
 	manualAuth="true"
 	token="$1"
 }
 
 CacheLocation () {
-	[ -z $1 ] && conf_error "Cache Location not specified in directive CacheLocation"
+	[ -z $1 ] && conf_error "No argument for directive CacheLocation"
 	if vargrep "^/.+$" "$1" -Eq || \
 		vargrep "^~.+$" "$1" -Eq;
 	then cacheloc="$1";
-	else conf_error "Cache Location is not valid (does not begin with / or ~) in directive CacheLocation"; fi
+	else conf_error "Cache Location is not valid (does not begin with / or ~)"; fi
 }
 
 ##################################
@@ -70,7 +101,7 @@ GetAccessToken () {
 	[ -z "$manualAuth" ] && printf "Getting access token...\n"
 	if [ "$manualAuth" = "true" ];
 	then printf ""; # printf "" basically means do nothing
-	else token=$(curl -XPOST -d "{"'"'"type"'"'":"'"'"m.login.password"'"'", "'"'"user"'"'":"'"'"$username"'"'", "'"'"password"'"'":"'"'"$password"'"'"}" "https://$homeserver/_matrix/client/r0/login" | grep -oE 'syt_.+_...................._......');
+	else token=$(curl -XPOST -d "{"'"'"type"'"'":"'"'"m.login.password"'"'", "'"'"user"'"'":"'"'"$username"'"'", "'"'"password"'"'":"'"'"$password"'"'"}" "https://$server/_matrix/client/r0/login" | grep -oE 'syt_.+_...................._......');
 	fi
 }
 
@@ -90,9 +121,20 @@ ClearCache () {
 }
 
 Send () {
-	curl -XPOST -d "{"'"'"msgtype"'"'":"'"'"m.text"'"'", "'"'"body"'"'":"'"'"$message"'"'"}" "https://$homeserver/_matrix/client/r0/rooms/%21$roomid/send/m.room.message?access_token=$token"
+	curl -XPOST -d "{"'"'"msgtype"'"'":"'"'"m.text"'"'", "'"'"body"'"'":"'"'"$message"'"'"}" "https://$server/_matrix/client/r0/rooms/%21$roomid/send/m.room.message?access_token=$token"
 }
 
+########################
+#### Initial checks ####
+########################
+
+[ -e /usr/local/bin/curl ] || [ -e /usr/bin/curl ] || error "curl not found"
+
+[ -z "$1" ] && usage
+[ "$1" = "-c" ] && ClearCache
+[ "$1" = "-h" ] && help
+[ "$1" = "-V" ] && version
+
 ###############################
 #### Configuration loading ####
 ###############################
@@ -109,7 +151,7 @@ else
 fi
 
 # Run checks for essential directives
-[ -z $homeserver ] && conf_error "Homeserver directive is not present"
+[ -z $server ] && conf_error "Server directive is not present"
 [ -z $username ] && conf_error "Username directive is not present"
 [ -z "$password" ] && conf_error "Password directive is not present"
 
@@ -117,9 +159,6 @@ fi
 #### Main ####
 ##############
 
-[ -z "$1" ] && error "Message not specified"
-[ "$1" = "-c" ] && ClearCache
-
 # Get token and cache it (unless NoCache is set)
 [ -e "$cacheloc/matrix-send/access-token" ] && token=$(cat $cacheloc/matrix-send/access-token)
 [ -e "$cacheloc/matrix-send/access-token" ] || GetAccessToken
@@ -129,6 +168,10 @@ if [ -z "$2" ];
 then error "Room ID not specified (Leave out the '!').";
 else
 	message="$1"
-	roomid="$2"
-	Send;
+	roomid_input="$2"
+	if vargrep '!' "$roomid_input" -qo
+	then roomid="$(printf "$roomid" | sed 's/!//g')"
+	else roomid="$roomid_input"
+	fi
+	Send
 fi