From 6a53ec1bb19ab981ca059a9b68d3c3bb19938ebf Mon Sep 17 00:00:00 2001
From: Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
Date: Mon, 19 Jun 2023 10:42:50 -0700
Subject: [PATCH] new vhost-user-mod.sh script

---
 bin/vhost-user-mod.sh | 71 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100755 bin/vhost-user-mod.sh

diff --git a/bin/vhost-user-mod.sh b/bin/vhost-user-mod.sh
new file mode 100755
index 0000000..bb11102
--- /dev/null
+++ b/bin/vhost-user-mod.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+#
+# vmail-stack
+# https://git.stack-source.com/msb/vhost-stack
+# Copyright (c) 2023 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+# load include file
+source $(dirname $0)/vhost.sh
+
+help()
+{
+  thisfilename=$(basename -- "$0")
+  echo "$thisfilename"
+  echo "Modify an existing user."
+  echo ""
+  echo "usage: $thisfilename -u <username> [-p <password>] [-x <fpmmax>] [-w <0|1>] [-h]"
+  echo ""
+  echo "  -h            Print this help."
+  echo "  -u <username> System username to modify."
+  echo "  -p <password> Updated password for username."
+  echo "  -x <fpmmax>   Updated PHP-FPM pm.max_children value."
+  echo "  -w <0|1>      Write user info to /home/username/.passwd (only applies when updating password)."
+  echo "                0 = no, 1 = yes. Default is 1, which can be overridden in main config."
+  exit
+}
+
+vhost:getoptions "$@"
+
+# check for username
+if [ -z "$username" ]; then
+  echo "username not set"
+  exit 1
+fi
+
+# verify user exists
+if /bin/grep -q "^$username:" /etc/passwd; then
+
+  # check for and change password
+  if [[ -n "$password" ]]; then
+    chpasswd <<<"$username:$password"
+    if [[ $write == 1 ]]; then
+      vhost::set-opensslpass
+      encryptedpass=`echo -n "$password" | openssl aes-256-cbc -a -salt -pass pass:$opensslpass -pbkdf2`
+      userid=(`stat -c '%u' /home/$username`)
+      userpasswdinfo="$username:$encryptedpass:$userid:$userid::/home/$username:/bin/bash"
+      if [[ -f "/home/$username/.passwd" ]]; then
+        chmod 640 /home/$username/.passwd
+      else
+        install -o $username -g $username -m 640 /dev/null /home/$username/.passwd
+      fi
+      echo "$userpasswdinfo" > /home/$username/.passwd
+    fi
+  fi
+
+  # check for and change php workers
+  if [[ -n "$fpmmax" ]]; then
+    vhost::set-phpVersion
+    if [[ -f /etc/php/$phpVersion/fpm/pool.d/$username.conf ]]; then
+      sed -i "s|pm.max_children.*|pm.max_children = $fpmmax|g" /etc/php/8.1/fpm/pool.d/vr15com.conf
+    else
+      echo "ERROR: PHP config for $username does not exist."
+      exit 1
+    fi
+  fi
+
+else
+  echo "ERROR: User $username does not exist."
+  exit 1
+fi
+