feat(batch-agent): extract Batch Agent Service (Step 3)
- agent_runner: local directory + cloud agent orchestration via Redis - 5 domain agents: filesystem, task, note, project, timeline - integrations: Gmail, MS Graph (Outlook + Teams) - journey: guided chatbot conversation to build prompt_template - routes: REST endpoints (catalog, can-create, trigger) - redis_consumer: subscribes to batch:request:* pattern - ws_context: Redis-based execute_on_client for tool round-trip - Dockerfile with 300s timeout for long-running batch jobs
This commit is contained in:
Roberto Musso
108
services/batch-agent/app/integrations/__init__.py
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108
services/batch-agent/app/integrations/__init__.py
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@@ -0,0 +1,108 @@
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"""Cloud provider integration utilities.
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Adapted for Batch Agent Service: import from shared.config instead of app.config.
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Provides:
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* Shared message dataclasses (EmailMessage, ChatMessage)
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* get_provider() — factory for Gmail/MS Graph clients
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* encrypt_token() / decrypt_token() — Fernet-based OAuth token encryption
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"""
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from __future__ import annotations
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import json
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import logging
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from dataclasses import dataclass, field
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from datetime import datetime
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from typing import TYPE_CHECKING
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from cryptography.fernet import Fernet, InvalidToken
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from shared.config import settings
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if TYPE_CHECKING:
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from app.integrations.gmail import GmailClient
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from app.integrations.ms_graph import MSGraphClient
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logger = logging.getLogger(__name__)
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@dataclass
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class EmailMessage:
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id: str
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subject: str
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sender: str
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body_text: str
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date: datetime
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labels: list[str] = field(default_factory=list)
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@property
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def as_text(self) -> str:
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date_str = self.date.strftime("%Y-%m-%d %H:%M")
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labels_str = f" [{', '.join(self.labels)}]" if self.labels else ""
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return (
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f"From: {self.sender}\n"
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f"Date: {date_str}{labels_str}\n"
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f"Subject: {self.subject}\n\n"
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f"{self.body_text}"
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)
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@dataclass
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class ChatMessage:
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id: str
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content: str
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sender: str
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channel: str | None
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date: datetime
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@property
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def as_text(self) -> str:
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date_str = self.date.strftime("%Y-%m-%d %H:%M")
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channel_str = f" [channel: {self.channel}]" if self.channel else ""
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return (
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f"From: {self.sender}\n"
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f"Date: {date_str}{channel_str}\n\n"
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f"{self.content}"
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)
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def _get_fernet() -> Fernet:
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key = settings.OAUTH_ENCRYPTION_KEY
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if not key:
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raise RuntimeError(
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"OAUTH_ENCRYPTION_KEY is not set. "
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"Generate one with: python -c \"from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())\""
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)
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return Fernet(key.encode() if isinstance(key, str) else key)
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def encrypt_token(token_info: dict) -> str:
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if not isinstance(token_info, dict) or not token_info:
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raise ValueError("token_info must be a non-empty dict")
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plaintext = json.dumps(token_info).encode("utf-8")
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return _get_fernet().encrypt(plaintext).decode("utf-8")
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def decrypt_token(encrypted: str) -> dict:
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try:
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plaintext = _get_fernet().decrypt(encrypted.encode("utf-8"))
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return json.loads(plaintext)
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except (InvalidToken, json.JSONDecodeError) as exc:
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raise ValueError(f"Failed to decrypt OAuth token: {exc}") from exc
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def get_provider(
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provider: str,
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credentials_info: dict,
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) -> "GmailClient | MSGraphClient":
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if provider == "gmail":
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from app.integrations.gmail import GmailClient
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return GmailClient(credentials_info)
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if provider in {"outlook", "teams"}:
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from app.integrations.ms_graph import MSGraphClient
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return MSGraphClient(credentials_info)
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raise ValueError(
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f"Unknown cloud provider {provider!r}. "
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"Supported: 'gmail', 'outlook', 'teams'."
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)
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252
services/batch-agent/app/integrations/gmail.py
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252
services/batch-agent/app/integrations/gmail.py
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@@ -0,0 +1,252 @@
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"""Gmail API client for cloud agent integration.
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Adapted for Batch Agent Service: import from app.integrations instead of
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app.integrations (same relative path within the service).
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"""
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from __future__ import annotations
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import asyncio
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import base64
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import email
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import html
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import logging
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import re
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from datetime import datetime, timezone
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from typing import Any
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from app.integrations import EmailMessage
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logger = logging.getLogger(__name__)
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_GMAIL_DATE_FMT = "%Y/%m/%d"
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_BODY_TRUNCATE = 8_000
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_MAX_MESSAGES = 200
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def _build_gmail_query(
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filter_config: dict[str, Any] | None,
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since: datetime | None,
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) -> str:
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parts: list[str] = []
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cfg = filter_config or {}
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labels: list[str] = cfg.get("labels", [])
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if labels:
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if len(labels) == 1:
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parts.append(f"label:{labels[0]}")
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else:
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label_expr = " OR ".join(f"label:{lbl}" for lbl in labels)
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parts.append(f"({label_expr})")
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senders: list[str] = cfg.get("senders", [])
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for sender in senders:
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parts.append(f"from:{sender}")
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date_range: dict = cfg.get("date_range", {})
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from_str: str | None = date_range.get("from")
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to_str: str | None = date_range.get("to")
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effective_since: datetime | None = since
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if from_str:
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try:
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cfg_since = datetime.fromisoformat(from_str.replace("Z", "+00:00"))
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if cfg_since.tzinfo is None:
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cfg_since = cfg_since.replace(tzinfo=timezone.utc)
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if effective_since is None or cfg_since > effective_since:
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effective_since = cfg_since
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except ValueError:
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logger.warning("gmail: invalid date_range.from %r — ignoring", from_str)
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if effective_since:
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parts.append(f"after:{effective_since.strftime(_GMAIL_DATE_FMT)}")
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if to_str:
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try:
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to_dt = datetime.fromisoformat(to_str.replace("Z", "+00:00"))
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parts.append(f"before:{to_dt.strftime(_GMAIL_DATE_FMT)}")
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except ValueError:
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logger.warning("gmail: invalid date_range.to %r — ignoring", to_str)
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return " ".join(parts)
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def _strip_html(raw_html: str) -> str:
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no_tags = re.sub(r"<[^>]+>", " ", raw_html)
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decoded = html.unescape(no_tags)
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return re.sub(r"\s+", " ", decoded).strip()
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def _parse_body(payload: dict[str, Any]) -> str:
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mime_type: str = payload.get("mimeType", "")
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body: dict = payload.get("body", {})
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parts: list[dict] = payload.get("parts", [])
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if mime_type == "text/plain":
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data = body.get("data", "")
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if data:
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return base64.urlsafe_b64decode(data + "==").decode("utf-8", errors="replace")
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return ""
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if mime_type == "text/html":
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data = body.get("data", "")
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if data:
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raw = base64.urlsafe_b64decode(data + "==").decode("utf-8", errors="replace")
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return _strip_html(raw)
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return ""
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plain_fallback = ""
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for part in parts:
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part_mime = part.get("mimeType", "")
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if part_mime == "text/plain":
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return _parse_body(part)
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if part_mime == "text/html" and not plain_fallback:
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plain_fallback = _parse_body(part)
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if part_mime.startswith("multipart/"):
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nested = _parse_body(part)
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if nested:
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return nested
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return plain_fallback
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def _parse_date(raw: str) -> datetime:
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try:
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parsed = email.utils.parsedate_to_datetime(raw)
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if parsed.tzinfo is None:
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parsed = parsed.replace(tzinfo=timezone.utc)
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return parsed.astimezone(timezone.utc)
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except Exception:
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return datetime.now(timezone.utc)
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class GmailClient:
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def __init__(self, credentials_info: dict[str, Any]) -> None:
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from google.oauth2.credentials import Credentials
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self._credentials_info = credentials_info
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expiry_str: str | None = credentials_info.get("expiry")
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expiry: datetime | None = None
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if expiry_str:
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try:
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expiry = datetime.fromisoformat(
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expiry_str.replace("Z", "+00:00")
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).replace(tzinfo=timezone.utc)
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except ValueError:
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pass
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self._credentials = Credentials(
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token=credentials_info.get("token"),
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refresh_token=credentials_info.get("refresh_token"),
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token_uri=credentials_info.get("token_uri", "https://oauth2.googleapis.com/token"),
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client_id=credentials_info.get("client_id"),
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client_secret=credentials_info.get("client_secret"),
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scopes=credentials_info.get("scopes"),
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expiry=expiry,
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)
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async def fetch_messages(
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self,
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filter_config: dict[str, Any] | None = None,
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since: datetime | None = None,
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) -> list[EmailMessage]:
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query = _build_gmail_query(filter_config, since)
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logger.debug("gmail: executing search query %r", query)
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return await asyncio.to_thread(self._fetch_sync, query)
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@property
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def refreshed_credentials(self) -> dict[str, Any] | None:
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creds = self._credentials
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if not creds.valid and creds.expired:
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return None
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if creds.token != self._credentials_info.get("token"):
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result = {
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"token": creds.token,
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"refresh_token": creds.refresh_token,
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"token_uri": creds.token_uri,
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"client_id": creds.client_id,
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"client_secret": creds.client_secret,
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"scopes": list(creds.scopes or []),
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}
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if creds.expiry:
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result["expiry"] = creds.expiry.isoformat()
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return result
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return None
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def _fetch_sync(self, query: str) -> list[EmailMessage]:
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import googleapiclient.discovery
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import googleapiclient.errors
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from google.auth.transport.requests import Request
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if self._credentials.expired and self._credentials.refresh_token:
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try:
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self._credentials.refresh(Request())
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except Exception as exc:
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raise RuntimeError(f"Gmail token refresh failed: {exc}") from exc
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service = googleapiclient.discovery.build(
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"gmail", "v1", credentials=self._credentials, cache_discovery=False
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)
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user_api = service.users()
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ids: list[str] = []
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page_token: str | None = None
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while len(ids) < _MAX_MESSAGES:
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batch_size = min(100, _MAX_MESSAGES - len(ids))
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kwargs: dict[str, Any] = {
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"userId": "me",
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"maxResults": batch_size,
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}
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if query:
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kwargs["q"] = query
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if page_token:
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kwargs["pageToken"] = page_token
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try:
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resp = user_api.messages().list(**kwargs).execute()
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except googleapiclient.errors.HttpError as exc:
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raise RuntimeError(f"Gmail messages.list failed: {exc}") from exc
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for msg in resp.get("messages", []):
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ids.append(msg["id"])
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page_token = resp.get("nextPageToken")
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if not page_token:
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break
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if not ids:
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return []
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logger.info("gmail: fetching %d message(s)", len(ids))
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messages: list[EmailMessage] = []
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for msg_id in ids:
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try:
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msg = user_api.messages().get(
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userId="me", id=msg_id, format="full"
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).execute()
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headers: dict[str, str] = {
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h["name"].lower(): h["value"]
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for h in msg.get("payload", {}).get("headers", [])
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}
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subject = headers.get("subject", "(no subject)")
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sender = headers.get("from", "unknown")
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date_raw = headers.get("date", "")
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date = _parse_date(date_raw) if date_raw else datetime.now(timezone.utc)
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body_text = _parse_body(msg.get("payload", {}))[:_BODY_TRUNCATE]
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labels = msg.get("labelIds", [])
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messages.append(EmailMessage(
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id=msg_id,
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subject=subject,
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sender=sender,
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body_text=body_text,
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date=date,
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labels=labels,
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))
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except Exception as exc:
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logger.warning("gmail: skipping message %s: %s", msg_id, exc)
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logger.info("gmail: returned %d message(s)", len(messages))
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return messages
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266
services/batch-agent/app/integrations/ms_graph.py
Normal file
266
services/batch-agent/app/integrations/ms_graph.py
Normal file
@@ -0,0 +1,266 @@
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"""Microsoft Graph API client for Outlook and Teams.
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Adapted for Batch Agent Service: import settings from shared.config.
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"""
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from __future__ import annotations
|
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import logging
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import re
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from datetime import datetime, timezone
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from typing import Any
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import httpx
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from shared.config import settings
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from app.integrations import ChatMessage, EmailMessage
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logger = logging.getLogger(__name__)
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_GRAPH_BASE = "https://graph.microsoft.com/v1.0"
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_MAX_EMAILS = 200
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_MAX_MESSAGES = 200
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_BODY_TRUNCATE = 8_000
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def _strip_html(raw: str) -> str:
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no_tags = re.sub(r"<[^>]+>", " ", raw)
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import html as _html
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decoded = _html.unescape(no_tags)
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return re.sub(r"\s+", " ", decoded).strip()
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def _odata_datetime(dt: datetime) -> str:
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utc = dt.astimezone(timezone.utc)
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return utc.strftime("%Y-%m-%dT%H:%M:%SZ")
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def _build_email_filter(
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filter_config: dict[str, Any] | None,
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since: datetime | None,
|
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) -> str:
|
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clauses: list[str] = []
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cfg = filter_config or {}
|
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|
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senders: list[str] = cfg.get("senders", [])
|
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if senders:
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sender_clauses = [f"from/emailAddress/address eq '{s}'" for s in senders]
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clauses.append("(" + " or ".join(sender_clauses) + ")")
|
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|
||||
date_range: dict = cfg.get("date_range", {})
|
||||
from_str: str | None = date_range.get("from")
|
||||
|
||||
effective_since: datetime | None = since
|
||||
if from_str:
|
||||
try:
|
||||
cfg_since = datetime.fromisoformat(from_str.replace("Z", "+00:00"))
|
||||
if cfg_since.tzinfo is None:
|
||||
cfg_since = cfg_since.replace(tzinfo=timezone.utc)
|
||||
if effective_since is None or cfg_since > effective_since:
|
||||
effective_since = cfg_since
|
||||
except ValueError:
|
||||
logger.warning("ms_graph: invalid date_range.from %r — ignoring", from_str)
|
||||
|
||||
if effective_since:
|
||||
clauses.append(f"receivedDateTime ge {_odata_datetime(effective_since)}")
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||||
|
||||
to_str: str | None = date_range.get("to")
|
||||
if to_str:
|
||||
try:
|
||||
to_dt = datetime.fromisoformat(to_str.replace("Z", "+00:00"))
|
||||
if to_dt.tzinfo is None:
|
||||
to_dt = to_dt.replace(tzinfo=timezone.utc)
|
||||
clauses.append(f"receivedDateTime le {_odata_datetime(to_dt)}")
|
||||
except ValueError:
|
||||
logger.warning("ms_graph: invalid date_range.to %r — ignoring", to_str)
|
||||
|
||||
return " and ".join(clauses)
|
||||
|
||||
|
||||
class MSGraphClient:
|
||||
def __init__(self, credentials_info: dict[str, Any]) -> None:
|
||||
self._credentials_info = credentials_info
|
||||
self._access_token: str = credentials_info.get("access_token", "")
|
||||
self._original_access_token: str = self._access_token
|
||||
self._refresh_token: str | None = credentials_info.get("refresh_token")
|
||||
|
||||
def _auth_headers(self) -> dict[str, str]:
|
||||
return {"Authorization": f"Bearer {self._access_token}"}
|
||||
|
||||
async def _refresh_access_token(self) -> None:
|
||||
import msal
|
||||
|
||||
app = msal.ConfidentialClientApplication(
|
||||
client_id=settings.MS_CLIENT_ID,
|
||||
client_credential=settings.MS_CLIENT_SECRET,
|
||||
authority=f"https://login.microsoftonline.com/{settings.MS_TENANT_ID}",
|
||||
)
|
||||
scopes: list[str] = self._credentials_info.get("scope", "").split()
|
||||
if not scopes:
|
||||
scopes = ["https://graph.microsoft.com/.default"]
|
||||
|
||||
result = app.acquire_token_by_refresh_token(
|
||||
self._refresh_token,
|
||||
scopes=scopes,
|
||||
)
|
||||
if "access_token" not in result:
|
||||
error = result.get("error_description", result.get("error", "unknown"))
|
||||
raise RuntimeError(f"MS Graph token refresh failed: {error}")
|
||||
|
||||
self._access_token = result["access_token"]
|
||||
if "refresh_token" in result:
|
||||
self._refresh_token = result["refresh_token"]
|
||||
self._credentials_info["refresh_token"] = result["refresh_token"]
|
||||
self._credentials_info["access_token"] = self._access_token
|
||||
|
||||
@property
|
||||
def refreshed_credentials(self) -> dict[str, Any] | None:
|
||||
if self._access_token != self._original_access_token:
|
||||
return {**self._credentials_info, "access_token": self._access_token}
|
||||
return None
|
||||
|
||||
async def _get(
|
||||
self,
|
||||
client: httpx.AsyncClient,
|
||||
url: str,
|
||||
params: dict[str, Any] | None = None,
|
||||
*,
|
||||
retry_on_401: bool = True,
|
||||
) -> dict[str, Any]:
|
||||
resp = await client.get(url, params=params, headers=self._auth_headers())
|
||||
if resp.status_code == 401 and retry_on_401 and self._refresh_token:
|
||||
await self._refresh_access_token()
|
||||
resp = await client.get(url, params=params, headers=self._auth_headers())
|
||||
if resp.status_code == 429:
|
||||
raise RuntimeError("MS Graph rate limit hit (429). Try again later.")
|
||||
resp.raise_for_status()
|
||||
return resp.json()
|
||||
|
||||
async def fetch_emails(
|
||||
self,
|
||||
filter_config: dict[str, Any] | None = None,
|
||||
since: datetime | None = None,
|
||||
) -> list[EmailMessage]:
|
||||
odata_filter = _build_email_filter(filter_config, since)
|
||||
params: dict[str, Any] = {
|
||||
"$top": 50,
|
||||
"$select": "id,subject,from,receivedDateTime,body,bodyPreview",
|
||||
"$orderby": "receivedDateTime desc",
|
||||
}
|
||||
if odata_filter:
|
||||
params["$filter"] = odata_filter
|
||||
|
||||
emails: list[EmailMessage] = []
|
||||
url = f"{_GRAPH_BASE}/me/messages"
|
||||
|
||||
async with httpx.AsyncClient(timeout=30.0) as client:
|
||||
while url and len(emails) < _MAX_EMAILS:
|
||||
data = await self._get(client, url, params if url.startswith(_GRAPH_BASE) else None)
|
||||
for item in data.get("value", []):
|
||||
emails.append(self._parse_email(item))
|
||||
if len(emails) >= _MAX_EMAILS:
|
||||
break
|
||||
url = data.get("@odata.nextLink", "")
|
||||
params = {}
|
||||
|
||||
logger.info("ms_graph: fetched %d Outlook email(s)", len(emails))
|
||||
return emails
|
||||
|
||||
async def fetch_messages(
|
||||
self,
|
||||
filter_config: dict[str, Any] | None = None,
|
||||
since: datetime | None = None,
|
||||
) -> list[ChatMessage]:
|
||||
cfg = filter_config or {}
|
||||
channel_filter: list[str] = [c.lower() for c in cfg.get("channels", [])]
|
||||
params: dict[str, Any] = {"$top": 50}
|
||||
if since:
|
||||
params["$filter"] = f"createdDateTime ge {_odata_datetime(since)}"
|
||||
|
||||
messages: list[ChatMessage] = []
|
||||
url = f"{_GRAPH_BASE}/me/chats/getAllMessages"
|
||||
|
||||
async with httpx.AsyncClient(timeout=30.0) as client:
|
||||
while url and len(messages) < _MAX_MESSAGES:
|
||||
try:
|
||||
data = await self._get(client, url, params if url.startswith(_GRAPH_BASE) else None)
|
||||
except httpx.HTTPStatusError as exc:
|
||||
if exc.response.status_code in (403, 404):
|
||||
logger.warning(
|
||||
"ms_graph: /me/chats/getAllMessages not available (%d)",
|
||||
exc.response.status_code,
|
||||
)
|
||||
break
|
||||
raise
|
||||
|
||||
for item in data.get("value", []):
|
||||
msg = self._parse_teams_message(item)
|
||||
if channel_filter and msg.channel:
|
||||
if not any(c in msg.channel.lower() for c in channel_filter):
|
||||
continue
|
||||
messages.append(msg)
|
||||
if len(messages) >= _MAX_MESSAGES:
|
||||
break
|
||||
url = data.get("@odata.nextLink", "")
|
||||
params = {}
|
||||
|
||||
logger.info("ms_graph: fetched %d Teams message(s)", len(messages))
|
||||
return messages
|
||||
|
||||
@staticmethod
|
||||
def _parse_email(item: dict[str, Any]) -> EmailMessage:
|
||||
subject: str = item.get("subject", "(no subject)") or "(no subject)"
|
||||
sender_block = item.get("from", {}) or {}
|
||||
sender_addr = (
|
||||
(sender_block.get("emailAddress") or {}).get("address", "unknown")
|
||||
)
|
||||
date_str: str = item.get("receivedDateTime", "")
|
||||
try:
|
||||
date = datetime.fromisoformat(date_str.replace("Z", "+00:00"))
|
||||
except Exception:
|
||||
date = datetime.now(timezone.utc)
|
||||
|
||||
body_block = item.get("body", {}) or {}
|
||||
content_type: str = body_block.get("contentType", "text")
|
||||
raw_body: str = body_block.get("content", "")
|
||||
if content_type == "html":
|
||||
body_text = _strip_html(raw_body)
|
||||
else:
|
||||
body_text = raw_body or item.get("bodyPreview", "")
|
||||
body_text = body_text[:_BODY_TRUNCATE]
|
||||
|
||||
return EmailMessage(
|
||||
id=item.get("id", ""),
|
||||
subject=subject,
|
||||
sender=sender_addr,
|
||||
body_text=body_text,
|
||||
date=date,
|
||||
)
|
||||
|
||||
@staticmethod
|
||||
def _parse_teams_message(item: dict[str, Any]) -> ChatMessage:
|
||||
msg_id: str = item.get("id", "")
|
||||
sender_block = (item.get("from") or {}).get("user") or {}
|
||||
sender: str = sender_block.get("displayName", "unknown")
|
||||
channel: str | None = (item.get("channelIdentity") or {}).get("channelId")
|
||||
|
||||
date_str: str = item.get("createdDateTime", "")
|
||||
try:
|
||||
date = datetime.fromisoformat(date_str.replace("Z", "+00:00"))
|
||||
except Exception:
|
||||
date = datetime.now(timezone.utc)
|
||||
|
||||
body_block = item.get("body", {}) or {}
|
||||
content_type: str = body_block.get("contentType", "text")
|
||||
raw_content: str = body_block.get("content", "")
|
||||
content = _strip_html(raw_content) if content_type == "html" else raw_content
|
||||
content = content[:_BODY_TRUNCATE]
|
||||
|
||||
return ChatMessage(
|
||||
id=msg_id,
|
||||
content=content,
|
||||
sender=sender,
|
||||
channel=channel,
|
||||
date=date,
|
||||
)
|
||||
Reference in New Issue
Block a user