From 8d4bbda9453c66df3819d5cb5b3b5f850dfd9276 Mon Sep 17 00:00:00 2001
From: TudbuT <forge-public@mail.tudbut.de>
Date: Sat, 26 Oct 2024 05:03:58 +0200
Subject: [PATCH] Basic scripts

---
 .gitignore  |   1 +
 init.sh     |  37 ++++++++++
 pushkey.sh  |   5 ++
 read-msg.sh |  20 ++++++
 recv-msg.sh |   6 ++
 sign.sh     |   5 ++
 signer.pub  | 195 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 verify.sh   |  31 +++++++++
 8 files changed, 300 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 init.sh
 create mode 100644 pushkey.sh
 create mode 100644 read-msg.sh
 create mode 100644 recv-msg.sh
 create mode 100644 sign.sh
 create mode 100644 signer.pub
 create mode 100644 verify.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2ad9294
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.local
diff --git a/init.sh b/init.sh
new file mode 100644
index 0000000..910a0ea
--- /dev/null
+++ b/init.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+echo "> Importing signer"
+gpg --import signer.pub
+gpg --edit-key tudbut@tudbut.de "trust" "quit"
+echo done
+
+echo "> Setting up peers"
+echo -n "This node: TudbuT.infra."
+read name
+echo "TudbuT.infra.$name" > name.local
+echo -n "Router is TudbuT.infra.router.main? [Y/n] "
+read yn
+if [ "$yn" != "n" ] ; then
+  echo "TudbuT.infra.router.main" > router.local
+else
+  echo -n "Router: TudbuT.infra."
+  read router
+  echo "TudbuT.infra.$router" > router.local
+fi
+echo -n "Router lives at domain: "
+read domain
+echo "$domain" > router.ip.local
+echo "All set."
+
+echo "> Setting up GPG"
+gpg --gen-key
+echo "Please sign:"
+gpg --export -a "TudbuT.infra.$name"
+echo -n "Enter to confirm"
+read
+echo "Please give me the signed key:"
+gpg --import
+echo "Thank you!"
+
+echo "> Done."
+
diff --git a/pushkey.sh b/pushkey.sh
new file mode 100644
index 0000000..ccf619a
--- /dev/null
+++ b/pushkey.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+name=$(cat name.local)
+
+echo key
+gpg --export -a "$name"
diff --git a/read-msg.sh b/read-msg.sh
new file mode 100644
index 0000000..e543078
--- /dev/null
+++ b/read-msg.sh
@@ -0,0 +1,20 @@
+#!/bin/sh
+
+read todo
+
+if [ "$todo" = "" ] ; then
+  exit
+fi
+
+if [ "$todo" = "push" ] ; then
+  read filename
+  cat > "$filename"
+  exit
+fi
+
+if [ "$todo" = "exec" ] ; then
+  read command
+  exec bash -c "$command"
+fi
+
+echo "invalid command: $todo"
diff --git a/recv-msg.sh b/recv-msg.sh
new file mode 100644
index 0000000..734cab5
--- /dev/null
+++ b/recv-msg.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+data="$(bash verify.sh)"
+c=$?
+if [ $c != 0 ] ; then exit $c ; fi
+bash read-msg.sh <<< "$data" || exit 1
diff --git a/sign.sh b/sign.sh
new file mode 100644
index 0000000..62e82f2
--- /dev/null
+++ b/sign.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+name=$(cat name.local)
+
+echo data
+gpg --local-user "$name" --sign -a
diff --git a/signer.pub b/signer.pub
new file mode 100644
index 0000000..ff36aa7
--- /dev/null
+++ b/signer.pub
@@ -0,0 +1,195 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
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+=/9qg
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/verify.sh b/verify.sh
new file mode 100644
index 0000000..cc2fd64
--- /dev/null
+++ b/verify.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+read mode
+
+
+if [ "$mode" = "key" ] ; then
+  output="$( (exec gpg --import > /dev/null) 2>&1 )"
+  if [ "$?" = 0 ] ; then
+    echo recv ok > /dev/stderr
+  else
+    echo recv bad > /dev/stderr
+    exit 1
+  fi
+  exit
+fi
+
+if [ "$mode" = "data" ] ; then
+  
+  id=$!
+  stderr="$( (exec gpg -d > /tmp/$id.msg) 2>&1 )"
+  if [ $? = 0 ] && ! grep "WARNING" <<< "$stderr" > /dev/null ; then
+    echo recv sig ok > /dev/stderr
+  else 
+    echo recv sig bad > /dev/stderr
+    exit 1
+  fi
+
+  cat /tmp/$id.msg
+
+  exit
+fi