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fix(caldav): Properly parse datetimes as vDDDTypes

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This commit is contained in:
Chris Coutinho
2025-10-19 20:13:05 +02:00
parent 92e18825bc
commit 1dc2ddfdb7
3 changed files with 138 additions and 35 deletions
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nextcloud_mcp_server/client/calendar.py
+94 -33
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@@ -12,6 +12,8 @@ from icalendar import Alarm, Calendar, vRecur
from icalendar import Event as ICalEvent
from icalendar import Todo as ICalTodo
# from .base import retry_on_429
logger = logging.getLogger(__name__)
@@ -136,6 +138,7 @@ class CalendarClient:
logger.debug(f"Found {len(result)} calendars")
return result
# @retry_on_429
async def create_calendar(
self,
calendar_name: str,
@@ -397,23 +400,37 @@ class CalendarClient:
"""Update an existing todo/task."""
calendar = self._get_calendar(calendar_name)
# Find the todo by UID
todo = await calendar.todo_by_uid(todo_uid)
await todo.load()
try:
# Find the todo by UID
todo = await calendar.todo_by_uid(todo_uid)
await todo.load()
# Merge updates into existing iCal data
updated_ical = self._merge_ical_todo_properties(todo.data, todo_data, todo_uid)
todo.data = updated_ical
logger.debug(
f"Loaded todo {todo_uid}, current data length: {len(todo.data)}"
)
await todo.save()
# Merge updates into existing iCal data
updated_ical = self._merge_ical_todo_properties(
todo.data, todo_data, todo_uid
)
logger.debug(f"Merged iCal data length: {len(updated_ical)}")
logger.debug(f"Updated iCal content:\n{updated_ical}")
logger.debug(f"Updated todo {todo_uid}")
return {
"uid": todo_uid,
"href": str(todo.url),
"etag": "",
"status_code": 200,
}
todo.data = updated_ical
save_result = await todo.save()
logger.debug(f"Save result: {save_result}")
logger.debug(f"Updated todo {todo_uid}")
return {
"uid": todo_uid,
"href": str(todo.url),
"etag": "",
"status_code": 200,
}
except Exception as e:
logger.error(f"Error updating todo {todo_uid}: {e}", exc_info=True)
raise
async def delete_todo(self, calendar_name: str, todo_uid: str) -> Dict[str, Any]:
"""Delete a todo/task."""
@@ -686,6 +703,30 @@ class CalendarClient:
# ============= Helper Methods - Todo iCalendar =============
def _ensure_timezone_aware(self, datetime_str: str) -> dt.datetime:
"""Parse datetime string and ensure it's timezone-aware.
If the datetime string doesn't include timezone info, interpret it as UTC.
This ensures RFC 5545 compliance for CalDAV/iCalendar properties.
Args:
datetime_str: ISO format datetime string (e.g., "2025-10-19T14:30:00" or "2025-10-19T14:30:00Z")
Returns:
Timezone-aware datetime object
"""
# Replace 'Z' with '+00:00' for consistent parsing
datetime_str = datetime_str.replace("Z", "+00:00")
# Parse the datetime
parsed_dt = dt.datetime.fromisoformat(datetime_str)
# If timezone-naive, assume UTC
if parsed_dt.tzinfo is None:
parsed_dt = parsed_dt.replace(tzinfo=dt.UTC)
return parsed_dt
def _create_ical_todo(self, todo_data: Dict[str, Any], todo_uid: str) -> str:
"""Create iCalendar VTODO content from todo data."""
cal = Calendar()
@@ -712,20 +753,26 @@ class CalendarClient:
# Due date
due = todo_data.get("due", "")
if due:
due_dt = dt.datetime.fromisoformat(due.replace("Z", "+00:00"))
todo.add("due", due_dt)
from icalendar import vDDDTypes
due_dt = self._ensure_timezone_aware(due)
todo.add("due", vDDDTypes(due_dt))
# Start date
dtstart = todo_data.get("dtstart", "")
if dtstart:
start_dt = dt.datetime.fromisoformat(dtstart.replace("Z", "+00:00"))
todo.add("dtstart", start_dt)
from icalendar import vDDDTypes
start_dt = self._ensure_timezone_aware(dtstart)
todo.add("dtstart", vDDDTypes(start_dt))
# Completed timestamp
completed = todo_data.get("completed", "")
if completed:
completed_dt = dt.datetime.fromisoformat(completed.replace("Z", "+00:00"))
todo.add("completed", completed_dt)
from icalendar import vDDDTypes
completed_dt = self._ensure_timezone_aware(completed)
todo.add("completed", vDDDTypes(completed_dt))
# Categories
categories = todo_data.get("categories", "")
@@ -789,6 +836,9 @@ class CalendarClient:
) -> str:
"""Merge new todo data into existing raw iCal while preserving all properties."""
try:
logger.debug(
f"Merging todo properties for {todo_uid}: {list(todo_data.keys())}"
)
cal = Calendar.from_ical(raw_ical)
for component in cal.walk():
@@ -799,33 +849,44 @@ class CalendarClient:
if "description" in todo_data:
component["DESCRIPTION"] = todo_data["description"]
if "status" in todo_data:
component["STATUS"] = todo_data["status"].upper()
status_value = todo_data["status"].upper()
component["STATUS"] = status_value
logger.debug(f"Set STATUS to {status_value}")
if "priority" in todo_data:
component["PRIORITY"] = todo_data["priority"]
if "percent_complete" in todo_data:
component["PERCENT-COMPLETE"] = todo_data["percent_complete"]
percent_value = todo_data["percent_complete"]
component["PERCENT-COMPLETE"] = percent_value
logger.debug(f"Set PERCENT-COMPLETE to {percent_value}")
# Import vDDDTypes at the beginning for datetime formatting
from icalendar import vDDDTypes
# Handle due date
if "due" in todo_data:
due_str = todo_data["due"]
if due_str:
due_dt = dt.datetime.fromisoformat(
due_str.replace("Z", "+00:00")
)
component["DUE"] = due_dt
due_dt = self._ensure_timezone_aware(due_str)
component["DUE"] = vDDDTypes(due_dt)
logger.debug(f"Set DUE to {due_dt}")
# Handle start date
if "dtstart" in todo_data:
dtstart_str = todo_data["dtstart"]
if dtstart_str:
dtstart_dt = self._ensure_timezone_aware(dtstart_str)
component["DTSTART"] = vDDDTypes(dtstart_dt)
logger.debug(f"Set DTSTART to {dtstart_dt}")
# Handle completed date
if "completed" in todo_data:
completed_str = todo_data["completed"]
if completed_str:
completed_dt = dt.datetime.fromisoformat(
completed_str.replace("Z", "+00:00")
)
component["COMPLETED"] = completed_dt
completed_dt = self._ensure_timezone_aware(completed_str)
component["COMPLETED"] = vDDDTypes(completed_dt)
logger.debug(f"Set COMPLETED to {completed_dt}")
# Update timestamps
from icalendar import vDDDTypes
now = dt.datetime.now(dt.UTC)
component["LAST-MODIFIED"] = vDDDTypes(now)
component["DTSTAMP"] = vDDDTypes(now)
@@ -835,7 +896,7 @@ class CalendarClient:
return cal.to_ical().decode("utf-8")
except Exception as e:
logger.error(f"Error merging iCal todo properties: {e}")
logger.error(f"Error merging iCal todo properties: {e}", exc_info=True)
return self._create_ical_todo(todo_data, todo_uid)
# ============= Helper Methods - Filtering =============