Major dotfile cleanup

author: Mitchell Riedstra <mitch@riedstra.dev> 2021-10-29 21:53:53 -0400
committer: Mitchell Riedstra <mitch@riedstra.dev> 2021-10-29 21:53:53 -0400
commit: 5b25c5155312f626813e0d36b7933f5eba801dd2 (patch)
tree: 6e264a92dbe13ed77821a5c5bd536b6701768442 /scripts
parent: e9b933ea6ce85f5d4f4653b7e5e6a7c836fcc893 (diff)
download: dotfiles-5b25c5155312f626813e0d36b7933f5eba801dd2.tar.gz
dotfiles-5b25c5155312f626813e0d36b7933f5eba801dd2.tar.xz
6 files changed, 207 insertions, 0 deletions
diff --git a/scripts/httpsvr b/scripts/httpsvr
new file mode 100755
index 0000000..ffc816a
--- /dev/null
+++ b/scripts/httpsvr
@@ -0,0 +1,68 @@
+#!/bin/sh
+# Stupid basic http server using OpenBSD netcat
+set -e
+
+PORT="${PORT:-8900}"
+ADDR="${ADDR:-127.0.0.1}"
+
+ncpid=
+
+send_index() {
+cat <<EOF
+HTTP/1.1 200 OK
+Server: shell
+Content-Type: text/html; charset=UTF-8
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+	<meta charset="UTF-8">
+	<title>Netcat HTTP</title>
+</head>
+<body>
+	Minimal HTTP server in posix SH and OpenBSD's netcat
+</body>
+</html>
+EOF
+}
+
+cleanup() {
+	set +e
+	kill "$ncpid" >/dev/null 2>&1
+	rm "$_f" "$_inF" >/dev/null 2>&1
+	exit 0
+}
+trap cleanup EXIT INT
+
+while true ; do
+	_f="$(mktemp)"
+	
+	_inF="$(mktemp)"
+	rm -f "$_inF"
+	mkfifo "$_inF"
+
+	#shellcheck disable=SC2002
+	cat "$_inF" | nc -l "$ADDR" "$PORT" > "$_f" & # | tee /dev/fd/2 >"$_f" &
+	ncpid=$!
+
+	counter=0
+	while [ $counter -lt 100 ] || [ -s "$_f" ] ; do
+		if grep -qi "^Accept:" "$_f" ; then
+			pth="$(sed -nre 's@^GET ([^ ][^ ]*) HTTP/1.1.*@\1@gp' < "$_f")"
+
+			echo "Request for path: $pth"
+
+			case $pth in
+				/) send_index >"$_inF" ;;
+			esac 
+
+			break
+		fi
+		sleep .01
+		[ -s "$_f" ] && counter=$((counter += 1))
+		ps $ncpid >/dev/null 2>&1 || break
+	done
+
+	kill $ncpid || echo ""
+	rm "$_f" "$_inF"
+done
diff --git a/scripts/key-check.sh b/scripts/key-check.sh
new file mode 100755
index 0000000..1672bc4
--- /dev/null
+++ b/scripts/key-check.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# Check for a public key, and create one for the user if it 
+# does not exist. Spit the key in red to stdout. Not so much for me,
+# but as a convienient script to give to others who aren't so familiar
+# with how SSH key authorization works.
+
+keyf="$HOME/.ssh/id_ed25519";
+! [ -e "$keyf" ] && ssh-keygen -t ed25519 -f "$keyf" -P "";
+printf '\033[1;31m%s\033[0m\n' "$(cat "$keyf.pub")";
+
+# One line version for pasting into chat:
+# keyf="$HOME/.ssh/id_ed25519"; ! [ -e "$keyf" ] && ssh-keygen -t ed25519 -f "$keyf" -P ""; printf '\033[1;31m%s\033[0m\n' "$(cat "$keyf.pub")";
diff --git a/scripts/readme.md b/scripts/readme.md
new file mode 100644
index 0000000..60c79c1
--- /dev/null
+++ b/scripts/readme.md
@@ -0,0 +1,3 @@
+# scripts
+
+A couple of misc scripts that may be of some utility.
diff --git a/scripts/snap-btrfs.sh b/scripts/snap-btrfs.sh
new file mode 100755
index 0000000..cc2e5a9
--- /dev/null
+++ b/scripts/snap-btrfs.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+set -x
+set -e
+timestamp() {
+	date +%m.%d.%y_%H.%M.%S
+}
+
+rootfs="glibc"
+snap="${rootfs}-snap"
+
+cd /ROOT
+
+if [ -e "$snap" ] ; then
+	btrfs sub del "$snap"
+fi
+
+if ! [ -e "bak" ] ; then
+	btrfs sub create "bak"
+fi
+
+btrfs sub snap -r "$rootfs" "bak/${rootfs}-$(timestamp)"
+btrfs sub snap "$rootfs" "$snap"
+sed -i.bak -e"s/subvol=${rootfs}/subvol=${snap}/g" "${snap}/etc/fstab"
diff --git a/scripts/snap-lvm.sh b/scripts/snap-lvm.sh
new file mode 100755
index 0000000..4991495
--- /dev/null
+++ b/scripts/snap-lvm.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+set -e
+
+vg="x230"
+lv="root"
+snap_name="${lv}-snap"
+mountpoint="/mnt/snap"
+PERCENT="100"
+
+mount_fs() {
+	_device="$1"; shift
+	_opts="nouuid,rw"
+	_mntpoint="$1"; shift
+	if ! [ -d "$_mntpoint" ] ; then
+		mkdir "$_mntpoint"
+	fi
+	mount -o "$_opts" "$_device" "$_mntpoint"
+}
+
+# If snapshot doesn't exist
+if ! lvm lvs "$vg/$snap_name" >/dev/null 2>&1 ; then
+	lvm lvcreate "$vg/$lv" -s --name "$snap_name" -l "${PERCENT}%ORIGIN"
+	mount_fs "/dev/$vg/$snap_name" "$mountpoint"
+	sed -i.bak -r "s@(/dev/${vg}/${lv})@\1${snap_name}@" \
+		"$mountpoint/etc/fstab"
+	umount "$mountpoint"
+else
+	printf 'Cannot continue snapshot "%s" already exists.\n' \
+			"$vg/$snap_name"
+	exit 1;
+fi
diff --git a/scripts/webhook.py b/scripts/webhook.py
new file mode 100755
index 0000000..3db70a8
--- /dev/null
+++ b/scripts/webhook.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+import requests, json, sys
+
+expected_status = 204
+url = ""
+# Default for discord, easy enough to override
+msg = {
+    "username": "{hostname} script",
+    "content": "```{stdin}```",
+}
+
+customVars = {}
+
+def merge_dicts(*dict_args):
+    result = {}
+    for dictionary in dict_args:
+        result.update(dictionary)
+    return result
+
+def template(msg, fmt):
+    out = {}
+    for k, v in msg.items():
+        if isinstance(v, dict):
+            out[k] = template(v, fmt)
+        else:
+            out[k] = v.format(**fmt)
+    return out
+
+
+def help():
+    print("Usage: {} [-m msg] [-u url] [-s expected_status] [-V var content]...".format(sys.argv[0]))
+    print("A small python script to send webhooks easily from the command line utilizing arguments and stdin")
+    print("Only requrement is the requests library")
+    print("Defaults:")
+    print("\tmsg: " + json.dumps(msg))
+    print("\turl: " + url)
+    print("\texpected_status: ", expected_status)
+    print("")
+    print("The [-V var content] arguments allow you to specifiy custom vars to be overridden in the json msg.")
+    sys.exit(2)
+
+n = 1
+while n < len(sys.argv):
+    if sys.argv[n] == "-u":
+        url = sys.argv[n+1]
+        n += 2
+    elif sys.argv[n] == "-m":
+        msg = json.loads(sys.argv[n+1])
+        n += 2
+    elif sys.argv[n] == "-s":
+        expected_status = int(sys.argv[n+1])
+        n += 2
+    elif sys.argv[n] == "-V":
+        customVars[sys.argv[n+1]] = sys.argv[n+2]
+        n += 3
+    else:
+        help()
+
+if url == "":
+    sys.stderr.write("No URL provided\n")
+    help()
+
+msg2 = template(msg, merge_dicts(customVars , {"stdin": sys.stdin.read()}))
+r = requests.post(url, json=msg2)
+
+if r.status_code != expected_status:
+    print(r)
+    print(r.text)
+    sys.exit(1)
+
author	Mitchell Riedstra <mitch@riedstra.dev>	2021-10-29 21:53:53 -0400
committer	Mitchell Riedstra <mitch@riedstra.dev>	2021-10-29 21:53:53 -0400
commit	5b25c5155312f626813e0d36b7933f5eba801dd2 (patch)
tree	6e264a92dbe13ed77821a5c5bd536b6701768442 /scripts
parent	e9b933ea6ce85f5d4f4653b7e5e6a7c836fcc893 (diff)
download	dotfiles-5b25c5155312f626813e0d36b7933f5eba801dd2.tar.gz dotfiles-5b25c5155312f626813e0d36b7933f5eba801dd2.tar.xz