From e3273d8ead6ee0da307097febeb27a38e8cc3593 Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Mon, 19 Dec 2016 12:05:53 -0200
Subject: Adds pwgen action

---
 lib/keyringer/actions/pwgen | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 lib/keyringer/actions/pwgen

(limited to 'lib/keyringer/actions/pwgen')

diff --git a/lib/keyringer/actions/pwgen b/lib/keyringer/actions/pwgen
new file mode 100755
index 0000000..45d2bf9
--- /dev/null
+++ b/lib/keyringer/actions/pwgen
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+#
+# Generates passphrases.
+#
+
+# Load functions
+LIB="`dirname $0`/../functions"
+source "$LIB" || exit 1
+
+# Parameters
+SIZE="$3"
+FILE="$2"
+
+# Generates a random passphrase
+function keyringer_pwgen {
+  ENTROPY_BYTES=${1:-20} # in bytes
+  ENTROPY_SOURCE="${ENTROPY_SOURCE:-/dev/urandom}"
+
+  # Strip possible newlines if output is wrapped.
+  # Also strip trailing = signs as they add nothing to the password's entropy.
+  head -c $ENTROPY_BYTES $ENTROPY_SOURCE | base64 | tr -d '\n='
+  echo
+}
+
+# Check
+if [ -z "$FILE" ]; then
+  echo "Usage: keyringer <keyring> $BASENAME <secret> [size]"
+  exit 1
+elif [ ! -z "$SIZE" ] && ! echo $SIZE | egrep -q '^[0-9]+$'; then
+  echo "$SIZE is not a number"
+  exit 1
+fi
+
+# Encrypt and store a randomly-generated secret
+keyringer_pwgen $SIZE | keyringer_exec encrypt "$BASEDIR" "$FILE"
-- 
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