🛡️ Sentinel: [HIGH] Fix Server-Side Request Forgery in IMAP connections

🚨 Severity: HIGH
💡 Vulnerability: User-provided IMAP `host` in `_test_imap_connection` and `pull_inbox` was not validated against private IPs, creating an SSRF risk.
🎯 Impact: Attackers could abuse the endpoints to port-scan or interact with internal/private network services.
🔧 Fix: Integrated `is_private_ip` from `app.utils.network` to block connections resolving to private, loopback, link-local, or reserved IPs.
 Verification: Ran `test_imap_tasks.py` and `test_api_imap_accounts.py` successfully. Checked `ruff` output and diffs. Removed all scratch files from the commit.

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
This commit is contained in:
google-labs-jules[bot]
2026-03-23 14:45:22 +00:00
parent d94e9ca4bc
commit d22175310a
189 changed files with 1487 additions and 26549 deletions
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"""Celery task for rule-based document classification.
This task is executed as a pipeline step (``step_type="classify"``). It
applies built-in and user-defined classification rules against the document's
filename, OCR text, and existing AI metadata to assign a ``document_type``
category.
The result is stored in the ``ai_metadata`` JSON blob on the
:class:`~app.models.FileRecord` (field ``classification``).
"""
from __future__ import annotations
import json
import logging
from typing import Any
from app.celery_app import celery
from app.database import SessionLocal
from app.models import ClassificationRuleModel, FileRecord
from app.tasks.retry_config import BaseTaskWithRetry
from app.utils import log_task_progress
from app.utils.classification_rules import (
ClassificationResult,
classify_document,
db_rule_to_engine_rule,
)
logger = logging.getLogger(__name__)
STEP_NAME = "classify_document"
def _load_custom_rules(owner_id: str | None) -> list[Any]:
"""Load enabled custom classification rules from the database.
Returns engine-level :class:`ClassificationRule` dataclass instances.
Rules are loaded in priority-descending order. System rules
(``owner_id IS NULL``) and the user's own rules are both included.
"""
with SessionLocal() as db:
query = db.query(ClassificationRuleModel).filter(ClassificationRuleModel.enabled.is_(True))
if owner_id:
query = query.filter(
(ClassificationRuleModel.owner_id.is_(None)) | (ClassificationRuleModel.owner_id == owner_id)
)
else:
query = query.filter(ClassificationRuleModel.owner_id.is_(None))
rules = query.order_by(ClassificationRuleModel.priority.desc()).all()
return [db_rule_to_engine_rule(r) for r in rules]
@celery.task(base=BaseTaskWithRetry, bind=True)
def classify_document_task(
self: Any,
file_id: int,
owner_id: str | None = None,
) -> dict[str, Any]:
"""Classify a document using rule-based matching.
This task:
1. Loads the :class:`FileRecord` from the database.
2. Gathers filename, OCR text, and existing AI metadata.
3. Loads built-in + user-defined classification rules.
4. Runs the classification engine.
5. Persists the result into ``ai_metadata.classification``.
Args:
file_id: Primary key of the :class:`FileRecord` to classify.
owner_id: Owner identifier for loading user-specific rules.
Returns:
Dict with ``category``, ``confidence``, and ``matched_rules``.
"""
task_id = self.request.id
log_task_progress(
task_id,
STEP_NAME,
"in_progress",
f"Starting classification for file {file_id}",
file_id=file_id,
)
try:
with SessionLocal() as db:
file_record: FileRecord | None = db.query(FileRecord).filter(FileRecord.id == file_id).first()
if file_record is None:
log_task_progress(
task_id,
STEP_NAME,
"failure",
f"FileRecord {file_id} not found",
file_id=file_id,
)
return {"status": "error", "detail": "File not found"}
# Gather inputs
filename = file_record.original_filename or ""
text = file_record.ocr_text or ""
existing_metadata: dict[str, Any] = {}
if file_record.ai_metadata:
try:
existing_metadata = json.loads(file_record.ai_metadata)
except (json.JSONDecodeError, TypeError):
logger.warning("Failed to parse ai_metadata for file %s, starting fresh", file_id)
existing_metadata = {}
# Load custom rules
effective_owner = owner_id or file_record.owner_id
custom_rules = _load_custom_rules(effective_owner)
# Run classification engine
result: ClassificationResult = classify_document(
filename=filename,
text=text,
metadata=existing_metadata,
custom_rules=custom_rules,
)
# Persist result into ai_metadata
classification_data = {
"category": result.category,
"confidence": result.confidence,
"matched_rules": [
{
"rule_name": m.rule_name,
"rule_type": m.rule_type,
"category": m.category,
"confidence": m.confidence,
}
for m in result.matched_rules
],
}
existing_metadata["classification"] = classification_data
# If no document_type was set yet, populate it from the classification
if not existing_metadata.get("document_type"):
from app.utils.classification_rules import BUILTIN_CATEGORIES
existing_metadata["document_type"] = BUILTIN_CATEGORIES.get(
result.category, result.category.replace("_", " ").title()
)
file_record.ai_metadata = json.dumps(existing_metadata, ensure_ascii=False)
db.commit()
log_task_progress(
task_id,
STEP_NAME,
"success",
f"Classified as '{result.category}' with confidence {result.confidence}",
file_id=file_id,
detail=f"Matched {len(result.matched_rules)} rule(s)",
)
return {
"status": "success",
"category": result.category,
"confidence": result.confidence,
"matched_rules": len(result.matched_rules),
}
except Exception as e:
logger.exception("Classification failed for file %s: %s", file_id, e)
log_task_progress(
task_id,
STEP_NAME,
"failure",
f"Classification failed: {e}",
file_id=file_id,
)
raise