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nextcloud-mcp-server/nextcloud_mcp_server/webdav_client.py
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2025-07-06 08:41:02 +02:00

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9.9 KiB
Python

"""WebDAV client for Nextcloud file operations."""
import mimetypes
from typing import Tuple, Dict, Any, Optional
import logging
from httpx import HTTPStatusError
from .base_client import BaseNextcloudClient
logger = logging.getLogger(__name__)
class WebDAVClient(BaseNextcloudClient):
"""Client for Nextcloud WebDAV operations."""
async def delete_resource(self, path: str) -> Dict[str, Any]:
"""Delete a resource (file or directory) via WebDAV DELETE."""
# Ensure path ends with a slash if it's a directory
if not path.endswith("/"):
path_with_slash = f"{path}/"
else:
path_with_slash = path
webdav_path = f"{self._get_webdav_base_path()}/{path_with_slash.lstrip('/')}"
logger.info(f"Deleting WebDAV resource: {webdav_path}")
headers = {"OCS-APIRequest": "true"}
try:
# First try a PROPFIND to verify resource exists
propfind_headers = {"Depth": "0", "OCS-APIRequest": "true"}
try:
propfind_resp = await self._client.request(
"PROPFIND", webdav_path, headers=propfind_headers
)
logger.info(
f"Resource exists check (PROPFIND) status: {propfind_resp.status_code}"
)
except HTTPStatusError as e:
if e.response.status_code == 404:
logger.info(
f"Resource '{webdav_path}' doesn't exist, no deletion needed."
)
return {"status_code": 404}
# For other errors, continue with deletion attempt
# Proceed with deletion
response = await self._client.delete(webdav_path, headers=headers)
response.raise_for_status()
logger.info(
f"Successfully deleted WebDAV resource '{webdav_path}' (Status: {response.status_code})"
)
return {"status_code": response.status_code}
except HTTPStatusError as e:
logger.warning(f"HTTP error deleting WebDAV resource '{webdav_path}': {e}")
if e.response.status_code != 404:
raise e
else:
logger.info(f"Resource '{webdav_path}' not found, no deletion needed.")
return {"status_code": 404}
except Exception as e:
logger.warning(
f"Unexpected error deleting WebDAV resource '{webdav_path}': {e}"
)
raise e
async def cleanup_old_attachment_directory(
self, note_id: int, old_category: str
) -> Dict[str, Any]:
"""Clean up the attachment directory for a note in its old category location."""
old_category_path_part = f"{old_category}/" if old_category else ""
old_attachment_dir_path = (
f"Notes/{old_category_path_part}.attachments.{note_id}/"
)
logger.info(f"Cleaning up old attachment directory: {old_attachment_dir_path}")
try:
delete_result = await self.delete_resource(path=old_attachment_dir_path)
logger.info(f"Cleanup of old attachment directory result: {delete_result}")
return delete_result
except Exception as e:
logger.error(f"Error during cleanup of old attachment directory: {e}")
raise e
async def cleanup_note_attachments(
self, note_id: int, category: str
) -> Dict[str, Any]:
"""Clean up attachment directory for a specific note and category."""
cat_path_part = f"{category}/" if category else ""
attachment_dir_path = f"Notes/{cat_path_part}.attachments.{note_id}/"
logger.info(
f"Attempting to delete attachment directory for note {note_id} in category '{category}' via WebDAV: {attachment_dir_path}"
)
try:
delete_result = await self.delete_resource(path=attachment_dir_path)
logger.info(
f"WebDAV deletion for category '{category}' attachment directory: {delete_result}"
)
return delete_result
except Exception as e:
logger.warning(
f"Failed during WebDAV deletion for category '{category}' attachment directory: {e}"
)
raise e
async def add_note_attachment(
self,
note_id: int,
filename: str,
content: bytes,
category: Optional[str] = None,
mime_type: Optional[str] = None,
) -> Dict[str, Any]:
"""Add/Update an attachment to a note via WebDAV PUT."""
# Construct paths based on provided category
webdav_base = self._get_webdav_base_path()
category_path_part = f"{category}/" if category else ""
attachment_dir_segment = f".attachments.{note_id}"
parent_dir_webdav_rel_path = (
f"Notes/{category_path_part}{attachment_dir_segment}"
)
parent_dir_path = f"{webdav_base}/{parent_dir_webdav_rel_path}"
attachment_path = f"{parent_dir_path}/{filename}"
logger.info(
f"Uploading attachment for note {note_id} (category: '{category or ''}') to WebDAV path: {attachment_path}"
)
# Log current auth settings
logger.info(
f"WebDAV auth settings - Username: {self.username}, Auth Type: {type(self._client.auth).__name__}"
)
if not mime_type:
mime_type, _ = mimetypes.guess_type(filename)
if not mime_type:
mime_type = "application/octet-stream"
headers = {"Content-Type": mime_type, "OCS-APIRequest": "true"}
try:
# First check if we can access WebDAV at all
notes_dir_path = f"{webdav_base}/Notes"
logger.info(f"Testing WebDAV access to Notes directory: {notes_dir_path}")
propfind_headers = {"Depth": "0", "OCS-APIRequest": "true"}
notes_dir_response = await self._client.request(
"PROPFIND", notes_dir_path, headers=propfind_headers
)
if notes_dir_response.status_code == 401:
logger.error(
"WebDAV authentication failed for Notes directory. Please verify WebDAV permissions."
)
raise HTTPStatusError(
f"Authentication error accessing WebDAV Notes directory: {notes_dir_response.status_code}",
request=notes_dir_response.request,
response=notes_dir_response,
)
elif notes_dir_response.status_code >= 400:
logger.error(
f"Error accessing WebDAV Notes directory: {notes_dir_response.status_code}"
)
notes_dir_response.raise_for_status()
else:
logger.info(
f"Successfully accessed WebDAV Notes directory (Status: {notes_dir_response.status_code})"
)
# Ensure the parent directory exists using MKCOL
logger.info(f"Ensuring attachments directory exists: {parent_dir_path}")
mkcol_headers = {"OCS-APIRequest": "true"}
mkcol_response = await self._client.request(
"MKCOL", parent_dir_path, headers=mkcol_headers
)
# MKCOL should return 201 Created or 405 Method Not Allowed (if directory already exists)
if mkcol_response.status_code not in [201, 405]:
logger.warning(
f"Unexpected status code {mkcol_response.status_code} when creating attachments directory"
)
mkcol_response.raise_for_status()
else:
logger.info(
f"Created/verified directory: {parent_dir_path} (Status: {mkcol_response.status_code})"
)
# Proceed with the PUT request
logger.info(f"Putting attachment file to: {attachment_path}")
response = await self._client.put(
attachment_path, content=content, headers=headers
)
response.raise_for_status()
logger.info(
f"Successfully uploaded attachment '{filename}' to note {note_id} (Status: {response.status_code})"
)
return {"status_code": response.status_code}
except HTTPStatusError as e:
logger.error(
f"HTTP error uploading attachment '{filename}' to note {note_id}: {e}"
)
raise e
except Exception as e:
logger.error(
f"Unexpected error uploading attachment '{filename}' to note {note_id}: {e}"
)
raise e
async def get_note_attachment(
self, note_id: int, filename: str, category: Optional[str] = None
) -> Tuple[bytes, str]:
"""Fetch a specific attachment from a note via WebDAV GET."""
webdav_base = self._get_webdav_base_path()
category_path_part = f"{category}/" if category else ""
attachment_dir_segment = f".attachments.{note_id}"
attachment_path = f"{webdav_base}/Notes/{category_path_part}{attachment_dir_segment}/{filename}"
logger.info(
f"Fetching attachment for note {note_id} (category: '{category or ''}') from WebDAV path: {attachment_path}"
)
try:
response = await self._client.get(attachment_path)
response.raise_for_status()
content = response.content
mime_type = response.headers.get("content-type", "application/octet-stream")
logger.info(
f"Successfully fetched attachment '{filename}' ({mime_type}, {len(content)} bytes)"
)
return content, mime_type
except HTTPStatusError as e:
logger.error(
f"HTTP error fetching attachment '{filename}' for note {note_id}: {e}"
)
raise e
except Exception as e:
logger.error(
f"Unexpected error fetching attachment '{filename}' for note {note_id}: {e}"
)
raise e