Christian Krakau-Louis
132 lines
4.5 KiB
Python
132 lines
4.5 KiB
Python
#!/usr/bin/env python3
|
|
|
|
import os
|
|
import json
|
|
import time
|
|
import requests
|
|
import logging
|
|
from typing import Dict, Any
|
|
|
|
from app.config import settings
|
|
from app.tasks.retry_config import BaseTaskWithRetry
|
|
from app.celery_app import celery
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
POLL_MAX_ATTEMPTS = 10
|
|
POLL_INTERVAL_SEC = 3
|
|
|
|
def _get_headers():
|
|
"""Returns HTTP headers for Paperless-ngx API calls."""
|
|
return {
|
|
"Authorization": f"Token {settings.paperless_ngx_api_token}"
|
|
}
|
|
|
|
def _paperless_api_url(path: str) -> str:
|
|
"""
|
|
Constructs a full Paperless-ngx API URL using `settings.paperless_host`.
|
|
Ensures the path is appended with a leading slash if missing.
|
|
"""
|
|
host = settings.paperless_host.rstrip("/")
|
|
if not path.startswith("/"):
|
|
path = "/" + path
|
|
return f"{host}{path}"
|
|
|
|
def poll_task_for_document_id(task_id: str) -> int:
|
|
"""
|
|
Polls /api/tasks/?task_id=<uuid> until we get status=SUCCESS or FAILURE,
|
|
or until we run out of attempts.
|
|
|
|
On SUCCESS: returns the int document_id from 'related_document'.
|
|
On FAILURE: raises RuntimeError with the task's 'result' message.
|
|
If times out, raises TimeoutError.
|
|
"""
|
|
url = _paperless_api_url("/api/tasks/")
|
|
attempts = 0
|
|
|
|
while attempts < POLL_MAX_ATTEMPTS:
|
|
try:
|
|
resp = requests.get(url, headers=_get_headers(), params={"task_id": task_id})
|
|
resp.raise_for_status()
|
|
tasks_data = resp.json()
|
|
except requests.exceptions.RequestException as exc:
|
|
logger.warning(
|
|
"Failed to poll for task_id='%s'. Attempt=%d Error=%s",
|
|
task_id, attempts + 1, exc
|
|
)
|
|
time.sleep(POLL_INTERVAL_SEC)
|
|
attempts += 1
|
|
continue
|
|
|
|
if isinstance(tasks_data, dict) and "results" in tasks_data:
|
|
tasks_data = tasks_data["results"]
|
|
|
|
if tasks_data:
|
|
task_info = tasks_data[0]
|
|
status = task_info.get("status")
|
|
if status == "SUCCESS":
|
|
doc_str = task_info.get("related_document")
|
|
if doc_str:
|
|
return int(doc_str)
|
|
raise RuntimeError(
|
|
f"Task {task_id} completed but no doc ID found. Task info: {task_info}"
|
|
)
|
|
elif status == "FAILURE":
|
|
raise RuntimeError(f"Task {task_id} failed: {task_info.get('result')}")
|
|
|
|
attempts += 1
|
|
time.sleep(POLL_INTERVAL_SEC)
|
|
|
|
raise TimeoutError(
|
|
f"Task {task_id} didn't reach SUCCESS within {POLL_MAX_ATTEMPTS} attempts."
|
|
)
|
|
|
|
@celery.task(base=BaseTaskWithRetry)
|
|
def upload_to_paperless(file_path: str) -> Dict[str, Any]:
|
|
"""
|
|
Uploads a PDF to Paperless with minimal metadata (filename and date only).
|
|
|
|
1. Extracts the filename and date from the file.
|
|
2. POSTs the PDF to Paperless => returns a quoted UUID string (task_id).
|
|
3. Polls /api/tasks/?task_id=<uuid> until SUCCESS or FAILURE => doc_id.
|
|
|
|
Returns a dict with status, the paperless_task_id, paperless_document_id, and file_path.
|
|
"""
|
|
if not os.path.exists(file_path):
|
|
raise FileNotFoundError(f"File not found: {file_path}")
|
|
|
|
base_name = os.path.basename(file_path)
|
|
|
|
# Upload the PDF
|
|
post_url = _paperless_api_url("/api/documents/post_document/")
|
|
with open(file_path, "rb") as f:
|
|
files = {
|
|
"document": (base_name, f, "application/pdf"),
|
|
}
|
|
data = {"title": base_name} # Title = Filename (no additional metadata)
|
|
|
|
try:
|
|
logger.debug("Posting document to Paperless: file=%s", base_name)
|
|
resp = requests.post(post_url, headers=_get_headers(), files=files, data=data)
|
|
resp.raise_for_status()
|
|
except requests.exceptions.RequestException as exc:
|
|
logger.error(
|
|
"Failed to upload document '%s' to Paperless. Error: %s. Response=%s",
|
|
file_path, exc, getattr(exc.response, "text", "<no response>")
|
|
)
|
|
raise
|
|
|
|
raw_task_id = resp.text.strip().strip('"').strip("'")
|
|
logger.info(f"Received Paperless task ID: {raw_task_id}")
|
|
|
|
# Poll tasks until success/fail => get doc_id
|
|
doc_id = poll_task_for_document_id(raw_task_id)
|
|
logger.info(f"Document {file_path} successfully ingested => ID={doc_id}")
|
|
|
|
return {
|
|
"status": "Completed",
|
|
"paperless_task_id": raw_task_id,
|
|
"paperless_document_id": doc_id,
|
|
"file_path": file_path
|
|
}
|