add random masterpass for sogo admin login

add required headers for sogo proxy auth with password
add SOGoEncryptionKey
add SOGoTrustProxyAuthentication only conditionally if feature is enabled

data/Dockerfiles/dovecot/docker-entrypoint.sh

@@ -118,17 +118,6 @@ default_pass_scheme = SSHA256
 password_query = SELECT password FROM mailbox WHERE active = '1' AND username = '%u' AND domain IN (SELECT domain FROM domain WHERE domain='%d' AND active='1') AND JSON_EXTRACT(attributes, '$.force_pw_update') NOT LIKE '%%1%%'
 EOF
 
-if [[ "${ALLOW_ADMIN_EMAIL_LOGIN}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
-    cat <<EOF > /usr/local/etc/dovecot/sogo-sso.conf
-passdb {
-  driver = static
-  args = password= allow_real_nets=${IPV4_NETWORK}.248/32
-}
-EOF
-else
-    rm -f /usr/local/etc/dovecot/sogo-sso.conf
-fi
-
 # Create global sieve_after script
 cat /usr/local/etc/dovecot/sieve_after > /var/vmail/sieve/global.sieve
 
@@ -146,6 +135,21 @@ echo ${RAND_USER}@mailcow.local:{SHA1}$(echo -n ${RAND_PASS} | sha1sum | awk '{p
 echo ${RAND_USER}@mailcow.local::5000:5000:::: > /usr/local/etc/dovecot/dovecot-master.userdb
 echo ${RAND_USER}@mailcow.local:${RAND_PASS} > /etc/sogo/sieve.creds
 
+if [[ "${ALLOW_ADMIN_EMAIL_LOGIN}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
+    # Create random master Password for SOGo 'login as user' via proxy auth
+    RAND_PASS=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1)
+    echo -n ${RAND_PASS} > /etc/phpfpm/sogo-sso.pass
+    cat <<EOF > /usr/local/etc/dovecot/sogo-sso.conf
+passdb {
+  driver = static
+  args = allow_real_nets=${IPV4_NETWORK}.248/32 password={plain}${RAND_PASS}
+}
+EOF
+else
+    rm -f /usr/local/etc/dovecot/sogo-sso.pass
+    rm -f /usr/local/etc/dovecot/sogo-sso.conf
+fi
+
 # 401 is user dovecot
 if [[ ! -s /mail_crypt/ecprivkey.pem || ! -s /mail_crypt/ecpubkey.pem ]]; then
 	openssl ecparam -name prime256v1 -genkey | openssl pkey -out /mail_crypt/ecprivkey.pem

data/Dockerfiles/sogo/bootstrap-sogo.sh

@@ -88,6 +88,13 @@ mkdir -p /var/lib/sogo/GNUstep/Defaults/
 # Force-remove lines from sogo.conf
 sed -i '/SOGoIMAPServer/d' /etc/sogo/sogo.conf
 
+if [[ "${ALLOW_ADMIN_EMAIL_LOGIN}" =~ ^([yY][eE][sS]|[yY])+$ ]]; then
+  TRUST_PROXY="YES"
+else
+  TRUST_PROXY="NO"
+fi
+RAND_PASS=$(cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 24 | head -n 1)
+
 # Generate plist header with timezone data
 cat <<EOF > /var/lib/sogo/GNUstep/Defaults/sogod.plist
 <?xml version="1.0" encoding="UTF-8"?>
@@ -98,6 +105,10 @@ cat <<EOF > /var/lib/sogo/GNUstep/Defaults/sogod.plist
     <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_acl</string>
     <key>SOGoIMAPServer</key>
     <string>imap://${IPV4_NETWORK}.250:143/?tls=YES</string>
+    <key>SOGoTrustProxyAuthentication</key>
+    <string>${TRUST_PROXY}</string>
+    <key>SOGoEncryptionKey</key>
+    <string>${RAND_PASS}</string>
     <key>OCSCacheFolderURL</key>
     <string>mysql://${DBUSER}:${DBPASS}@%2Fvar%2Frun%2Fmysqld%2Fmysqld.sock/${DBNAME}/sogo_cache_folder</string>
     <key>OCSEMailAlarmsFolderURL</key>

data/conf/nginx/templates/sogo.auth_request.template.sh

@@ -1,8 +1,10 @@
 if printf "%s\n" "${ALLOW_ADMIN_EMAIL_LOGIN}" | grep -E '^([yY][eE][sS]|[yY])+$' >/dev/null; then
     echo 'auth_request /sogo-auth-verify;
-auth_request_set $user $upstream_http_x_username;
-proxy_set_header x-webobjects-remote-user $user;
-if ($args ~* (.*)(account=(?!0))(.*)) {
-  return 401;
-}'
+auth_request_set $user $upstream_http_x_user;
+auth_request_set $auth $upstream_http_x_auth;
+auth_request_set $auth_type $upstream_http_x_auth_type;
+proxy_set_header x-webobjects-remote-user "$user";
+proxy_set_header Authorization "$auth";
+proxy_set_header x-webobjects-auth-type "$auth_type";
+'
 fi

data/conf/sogo/sogo.conf

@@ -82,6 +82,4 @@
   //SOGoUIxDebugEnabled = YES;
   //WODontZipResponse = YES;
     WOLogFile = "/dev/sogo_log";
-
-    SOGoTrustProxyAuthentication = YES;
 }

data/web/sogo-auth.php

@@ -30,7 +30,8 @@ $ALLOW_ADMIN_EMAIL_LOGIN = (preg_match(
   $_ENV["ALLOW_ADMIN_EMAIL_LOGIN"]
 ));
 
-$session_variable = 'sogo-sso-user';
+$session_var_user = 'sogo-sso-user';
+$session_var_pass = 'sogo-sso-pass';
 
 if (!$ALLOW_ADMIN_EMAIL_LOGIN) {
   header("Location: /");
@@ -42,7 +43,9 @@ elseif (isset($_GET['login'])) {
     $login = html_entity_decode(rawurldecode($_GET["login"]));
     if (filter_var($login, FILTER_VALIDATE_EMAIL)) {
       if (!empty(mailbox('get', 'mailbox_details', $login))) {
-        $_SESSION[$session_variable] = $login;
+        $sogo_sso_pass = file_get_contents("/etc/sogo-sso/sogo-sso.pass");
+        $_SESSION[$session_var_user] = $login;
+        $_SESSION[$session_var_pass] = $sogo_sso_pass;
         header("Location: /SOGo/");
         exit;
       }
@@ -54,11 +57,17 @@ elseif (isset($_GET['login'])) {
 else {
   // this is an nginx auth_request call, we check for an existing sogo-sso-user session variable
   session_start();
-  $username = "";
-  if (isset($_SESSION[$session_variable]) && filter_var($_SESSION[$session_variable], FILTER_VALIDATE_EMAIL)) {
-      $username = $_SESSION[$session_variable];
+  if (isset($_SESSION[$session_var_user]) && filter_var($_SESSION[$session_var_user], FILTER_VALIDATE_EMAIL)) {
+      $username = $_SESSION[$session_var_user];
+      $password = $_SESSION[$session_var_pass];
+      header("X-User: $username");
+      header("X-Auth: Basic ".base64_encode("$username:$password"));
+      header("X-Auth-Type: Basic");
+  } else {
+      // if username is empty, SOGo will display the normal login form
+      header("X-User: ");
+      header("X-Auth: ");
+      header("X-Auth-Type: ");
   }
-  // if username is empty, SOGo will display the normal login form
-  header("X-Username: $username");
   exit;
 }

docker-compose.yml

@@ -106,6 +106,7 @@ services:
         - mysql-socket-vol-1:/var/run/mysqld/
         - ./data/conf/sogo/:/etc/sogo/
         - ./data/conf/rspamd/meta_exporter:/meta_exporter:ro
+        - ./data/conf/phpfpm/sogo-sso/:/etc/sogo-sso/
         - ./data/conf/phpfpm/php-fpm.d/pools.conf:/usr/local/etc/php-fpm.d/z-pools.conf
         - ./data/conf/phpfpm/php-conf.d/opcache-recommended.ini:/usr/local/etc/php/conf.d/opcache-recommended.ini
         - ./data/conf/phpfpm/php-conf.d/upload.ini:/usr/local/etc/php/conf.d/upload.ini
@@ -175,6 +176,7 @@ services:
         - ./data/conf/dovecot:/usr/local/etc/dovecot
         - ./data/assets/ssl:/etc/ssl/mail/:ro
         - ./data/conf/sogo/:/etc/sogo/
+        - ./data/conf/phpfpm/sogo-sso/:/etc/phpfpm/
         - vmail-vol-1:/var/vmail
         - vmail-attachments-vol-1:/var/attachments
         - crypt-vol-1:/mail_crypt/