From 50b76f71143d9b79a0b12106d9016bcc52b7cc17 Mon Sep 17 00:00:00 2001
From: Peter Bieringer <pb@bieringer.de>
Date: Thu, 16 Jan 2025 06:02:06 +0100
Subject: [PATCH] imap: config parse

---
 radicale/auth/__init__.py | 10 +++++++++-
 radicale/config.py        | 31 +++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/radicale/auth/__init__.py b/radicale/auth/__init__.py
index 8bc8ffad..71854e2a 100644
--- a/radicale/auth/__init__.py
+++ b/radicale/auth/__init__.py
@@ -41,8 +41,16 @@ INTERNAL_TYPES: Sequence[str] = ("none", "remote_user", "http_x_remote_user",
                                  "denyall",
                                  "htpasswd",
                                  "ldap",
+                                 "imap",
                                  "dovecot")
 
+CACHE_LOGIN_TYPES: Sequence[str] = (
+                                    "dovecot",
+                                    "ldap",
+                                    "htpasswd",
+                                    "imap",
+                                   )
+
 AUTH_SOCKET_FAMILY: Sequence[str] = ("AF_UNIX", "AF_INET", "AF_INET6")
 
 
@@ -97,7 +105,7 @@ class BaseAuth:
         # cache_successful_logins
         self._cache_logins = configuration.get("auth", "cache_logins")
         self._type = configuration.get("auth", "type")
-        if (self._type in ["dovecot", "ldap", "htpasswd"]) or (self._cache_logins is False):
+        if (self._type in CACHE_LOGIN_TYPES) or (self._cache_logins is False):
             logger.info("auth.cache_logins: %s", self._cache_logins)
         else:
             logger.info("auth.cache_logins: %s (but not required for type '%s' and disabled therefore)", self._cache_logins, self._type)
diff --git a/radicale/config.py b/radicale/config.py
index 86970732..9b4e9af4 100644
--- a/radicale/config.py
+++ b/radicale/config.py
@@ -104,6 +104,29 @@ def _convert_to_bool(value: Any) -> bool:
     return RawConfigParser.BOOLEAN_STATES[value.lower()]
 
 
+def imap_address(value):
+    if "]" in value:
+        pre_address, pre_address_port = value.rsplit("]", 1)
+    else:
+        pre_address, pre_address_port = "", value
+    if ":" in pre_address_port:
+        pre_address2, port = pre_address_port.rsplit(":", 1)
+        address = pre_address + pre_address2
+    else:
+        address, port = pre_address + pre_address_port, None
+    try:
+        return (address.strip(string.whitespace + "[]"),
+                None if port is None else int(port))
+    except ValueError:
+        raise ValueError("malformed IMAP address: %r" % value)
+
+
+def imap_security(value):
+    if value not in ("tls", "starttls", "none"):
+        raise ValueError("unsupported IMAP security: %r" % value)
+    return value
+
+
 def json_str(value: Any) -> dict:
     if not value:
         return {}
@@ -276,6 +299,14 @@ DEFAULT_CONFIG_SCHEMA: types.CONFIG_SCHEMA = OrderedDict([
             "value": "",
             "help": "The path to the CA file in pem format which is used to certificate the server certificate",
             "type": str}),
+        ("imap_host", {
+            "value": "localhost",
+            "help": "IMAP server hostname: address|address:port|[address]:port|*localhost*",
+            "type": imap_address}),
+        ("imap_security", {
+            "value": "tls",
+            "help": "Secure the IMAP connection: *tls*|starttls|none",
+            "type": imap_security}),
         ("strip_domain", {
             "value": "False",
             "help": "strip domain from username",