Files
luk/fetch_outlook.py
2025-05-09 08:28:46 -06:00

475 lines
21 KiB
Python

import glob
import json
import os
import re
import time
from datetime import datetime, timedelta
from email.message import EmailMessage
from email.utils import format_datetime
from typing import Set
from dateutil import parser
from dateutil.tz import UTC
from rich import print
from rich.panel import Panel
from rich.progress import Progress, SpinnerColumn, MofNCompleteColumn
import aiohttp
import argparse
import asyncio
import html2text
import msal
import orjson
# Filepath for caching timestamp
cache_timestamp_file = 'cache_timestamp.json'
# Filepath for sync timestamp
sync_timestamp_file = 'sync_timestamp.json'
# Function to load the last sync timestamp
def load_last_sync_timestamp():
if os.path.exists(sync_timestamp_file):
with open(sync_timestamp_file, 'r') as f:
return json.load(f).get('last_sync', 0)
return 0
# Function to save the current sync timestamp
def save_sync_timestamp():
with open(sync_timestamp_file, 'w') as f:
json.dump({'last_sync': time.time()}, f)
# Add argument parsing for dry-run mode
arg_parser = argparse.ArgumentParser(description="Fetch and synchronize emails.")
arg_parser.add_argument("--dry-run", action="store_true", help="Run in dry-run mode without making changes.", default=False)
args = arg_parser.parse_args()
dry_run = args.dry_run
# Define a global semaphore for throttling
semaphore = asyncio.Semaphore(4)
async def fetch_with_aiohttp(url, headers):
async with semaphore:
async with aiohttp.ClientSession() as session:
async with session.get(url, headers=headers) as response:
if response.status != 200:
raise Exception(f"Failed to fetch {url}: {response.status} {await response.text()}")
raw_bytes = await response.read()
content_length = response.headers.get('Content-Length')
if content_length and len(raw_bytes) != int(content_length):
print("Warning: Incomplete response received!")
return None
return orjson.loads(raw_bytes)
async def post_with_aiohttp(url, headers, json_data):
async with semaphore:
async with aiohttp.ClientSession() as session:
async with session.post(url, headers=headers, json=json_data) as response:
return response.status
async def patch_with_aiohttp(url, headers, json_data):
async with semaphore:
async with aiohttp.ClientSession() as session:
async with session.patch(url, headers=headers, json=json_data) as response:
return response.status
async def delete_with_aiohttp(url, headers):
async with semaphore:
async with aiohttp.ClientSession() as session:
async with session.delete(url, headers=headers) as response:
return response.status
async def synchronize_maildir_async(maildir_path, headers, progress, task_id):
last_sync = load_last_sync_timestamp()
# Find messages moved from "new" to "cur" and mark them as read
new_dir = os.path.join(maildir_path, 'new')
cur_dir = os.path.join(maildir_path, 'cur')
new_files = set(glob.glob(os.path.join(new_dir, '*.eml*')))
cur_files = set(glob.glob(os.path.join(cur_dir, '*.eml*')))
moved_to_cur = [os.path.basename(f) for f in cur_files - new_files]
progress.update(task_id, total=len(moved_to_cur))
for filename in moved_to_cur:
# TODO: this isn't scalable, we should use a more efficient way to check if the file was modified
if os.path.getmtime(os.path.join(cur_dir, filename)) < last_sync:
progress.update(task_id, advance=1)
continue
message_id = re.sub(r"\:2.+", "", filename.split('.')[0]) # Extract the Message-ID from the filename
if not dry_run:
status = await patch_with_aiohttp(
f'https://graph.microsoft.com/v1.0/me/messages/{message_id}',
headers,
{'isRead': True}
)
if status == 404:
os.remove(os.path.join(cur_dir, filename))
else:
progress.console.print(f"[DRY-RUN] Would mark message as read: {message_id}")
progress.advance(task_id)
# Save the current sync timestamp
if not dry_run:
save_sync_timestamp()
else:
progress.console.print("[DRY-RUN] Would save sync timestamp.")
async def fetch_mail_async(maildir_path, attachments_dir, headers, progress, task_id):
mail_url = 'https://graph.microsoft.com/v1.0/me/mailFolders/inbox/messages?$top=100&$orderby=receivedDateTime asc&$select=id,subject,from,toRecipients,ccRecipients,receivedDateTime,isRead'
messages = []
# Fetch the total count of messages in the inbox
inbox_url = 'https://graph.microsoft.com/v1.0/me/mailFolders/inbox'
response = await fetch_with_aiohttp(inbox_url, headers)
total_messages = response.get('totalItemCount', 0)
progress.update(task_id, total=total_messages)
while mail_url:
try:
response_data = await fetch_with_aiohttp(mail_url, headers)
except Exception as e:
progress.console.print(f"Error fetching messages: {e}")
continue
messages.extend(response_data.get('value', []))
progress.advance(task_id, len(response_data.get('value', [])))
# Get the next page URL from @odata.nextLink
mail_url = response_data.get('@odata.nextLink')
inbox_msg_ids = set(message['id'] for message in messages)
progress.update(task_id, completed=(len(messages) / 2))
new_dir = os.path.join(maildir_path, 'new')
cur_dir = os.path.join(maildir_path, 'cur')
new_files = set(glob.glob(os.path.join(new_dir, '*.eml*')))
cur_files = set(glob.glob(os.path.join(cur_dir, '*.eml*')))
for filename in Set.union(cur_files, new_files):
message_id = filename.split('.')[0].split('/')[-1] # Extract the Message-ID from the filename
if (message_id not in inbox_msg_ids):
if not dry_run:
progress.console.print(f"Deleting {filename} from inbox")
os.remove(filename)
else:
progress.console.print(f"[DRY-RUN] Would delete {filename} from inbox")
for message in messages:
progress.console.print(f"Processing message: {message.get('subject', 'No Subject')}", end='\r')
await save_mime_to_maildir_async(maildir_path, message, attachments_dir, headers, progress)
progress.update(task_id, advance=0.5)
progress.update(task_id, completed=len(messages))
progress.console.print(f"\nFinished saving {len(messages)} messages.")
async def archive_mail_async(maildir_path, headers, progress, task_id):
archive_dir = os.path.join(maildir_path, '.Archives')
archive_files = glob.glob(os.path.join(archive_dir, '**', '*.eml*'), recursive=True)
progress.update(task_id, total=len(archive_files))
folder_response = await fetch_with_aiohttp('https://graph.microsoft.com/v1.0/me/mailFolders', headers)
folders = folder_response.get('value', [])
archive_folder_id = next((folder.get('id') for folder in folders if folder.get('displayName', '').lower() == 'archive'), None)
if not archive_folder_id:
raise Exception("No folder named 'Archive' found on the server.")
for filepath in archive_files:
message_id = os.path.basename(filepath).split('.')[0] # Extract the Message-ID from the filename
if not dry_run:
status = await post_with_aiohttp(
f'https://graph.microsoft.com/v1.0/me/messages/{message_id}/microsoft.graph.move',
headers,
{'destinationId': archive_folder_id}
)
if status != 201: # 201 Created indicates success
progress.console.print(f"Failed to move message to 'Archive': {message_id}, {status}")
if status == 404:
os.remove(filepath) # Remove the file from local archive if not fo
progress.console.print(f"Message not found on server, removed local copy: {message_id}")
elif status == 204:
progress.console.print(f"Moved message to 'Archive': {message_id}")
else:
progress.console.print(f"[DRY-RUN] Would move message to 'Archive' folder: {message_id}")
progress.advance(task_id)
return
async def delete_mail_async(maildir_path, headers, progress, task_id):
trash_dir = os.path.join(maildir_path, '.Trash', 'cur')
trash_files = set(glob.glob(os.path.join(trash_dir, '*.eml*')))
progress.update(task_id, total=len(trash_files))
for filepath in trash_files:
message_id = os.path.basename(filepath).split('.')[0] # Extract the Message-ID from the filename
if not dry_run:
progress.console.print(f"Moving message to trash: {message_id}")
status = await delete_with_aiohttp(
f'https://graph.microsoft.com/v1.0/me/messages/{message_id}',
headers
)
if status == 204 or status == 404:
os.remove(filepath) # Remove the file from local trash
else:
progress.console.print(f"[DRY-RUN] Would delete message: {message_id}")
progress.advance(task_id)
async def fetch_calendar_async(headers, progress, task_id):
yesterday = datetime.now().replace(hour=0, minute=0, second=0) - timedelta(days=1)
end_of_today = datetime.now().replace(hour=23, minute=59, second=59)
six_days_future = end_of_today + timedelta(days=6)
# example https://graph.microsoft.com/v1.0/me/calendarView?startDateTime=2025-05-06T00:00:00&endDateTime=2025-05-13T23:59:59.999999&$count=true&$select=id
event_base_url =f"https://graph.microsoft.com/v1.0/me/calendarView?startDateTime={yesterday.isoformat()}&endDateTime={six_days_future.isoformat()}"
total_event_url = f"{event_base_url}&$count=true&$select=id"
total = await fetch_with_aiohttp(total_event_url, headers)
total_events = total.get('@odata.count', 0) + 1
progress.update(task_id, total=total_events)
calendar_url = f"{event_base_url}&$top=100&$select=start,end,iCalUid,subject,bodyPreview,webLink,location,recurrence,showAs,responseStatus,onlineMeeting"
events = []
if total_events > 100:
progress.update(task_id, total=total_events + total_events % 100)
while calendar_url:
response_data = await fetch_with_aiohttp(calendar_url, headers)
events.extend(response_data.get('value', []))
progress.advance(task_id, 1)
# Get the next page URL from @odata.nextLink
calendar_url = response_data.get('@odata.nextLink')
output_file = 'output_ics/outlook_events_latest.ics'
if not dry_run:
os.makedirs(os.path.dirname(output_file), exist_ok=True)
progress.console.print(f"Saving events to {output_file}...")
with open(output_file, 'w') as f:
f.write("BEGIN:VCALENDAR\nVERSION:2.0\n")
for event in events:
progress.advance(task_id)
if 'start' in event and 'end' in event:
start = parser.isoparse(event['start']['dateTime']).astimezone(UTC)
end = parser.isoparse(event['end']['dateTime']).astimezone(UTC)
f.write(f"BEGIN:VEVENT\nSUMMARY:{event['subject']}\nDESCRIPTION:{event.get('bodyPreview', '')}\n")
f.write(f"UID:{event.get('iCalUId', '')}\n")
f.write(f"LOCATION:{event.get('location', {})['displayName']}\n")
f.write(f"CLASS:{event.get('showAs', '')}\n")
f.write(f"STATUS:{event.get('responseStatus', {})['response']}\n")
if 'onlineMeeting' in event and event['onlineMeeting']:
f.write(f"URL:{event.get('onlineMeeting', {}).get('joinUrl', '')}\n")
f.write(f"DTSTART:{start.strftime('%Y%m%dT%H%M%S')}\n")
f.write(f"DTEND:{end.strftime('%Y%m%dT%H%M%S')}\n")
if 'recurrence' in event and event['recurrence']: # Check if 'recurrence' exists and is not None
for rule in event['recurrence']:
if rule.startswith('RRULE'):
rule_parts = rule.split(';')
new_rule_parts = []
for part in rule_parts:
if part.startswith('UNTIL='):
until_value = part.split('=')[1]
until_date = parser.isoparse(until_value)
if start.tzinfo is not None and until_date.tzinfo is None:
until_date = until_date.replace(tzinfo=UTC)
new_rule_parts.append(f"UNTIL={until_date.strftime('%Y%m%dT%H%M%SZ')}")
else:
new_rule_parts.append(part)
rule = ';'.join(new_rule_parts)
f.write(f"{rule}\n")
f.write("END:VEVENT\n")
f.write("END:VCALENDAR\n")
progress.console.print(f"Saved events to {output_file}")
else:
progress.console.print(f"[DRY-RUN] Would save events to {output_file}")
# Function to create Maildir structure
def create_maildir_structure(base_path):
os.makedirs(os.path.join(base_path, 'cur'), exist_ok=True)
os.makedirs(os.path.join(base_path, 'new'), exist_ok=True)
os.makedirs(os.path.join(base_path, 'tmp'), exist_ok=True)
async def save_mime_to_maildir_async(maildir_path, email_data, attachments_dir, headers, progress):
# Create a new EmailMessage object
# Determine the directory based on isRead
target_dir = 'cur' if email_data.get('isRead', False) else 'new'
id = email_data.get('id', '')
if not id:
progress.console.print("Message ID not found. Skipping save.")
return
email_filename = f"{id}.eml"
email_filepath = os.path.join(maildir_path, target_dir, email_filename)
# Check if the file already exists
if os.path.exists(email_filepath):
progress.console.print(f"Message {id} already exists in {target_dir}. Skipping save.")
return
# Fetch the full MIME payload from the API
mime_url = f'https://graph.microsoft.com/v1.0/me/messages/{id}/$value'
try:
async with aiohttp.ClientSession() as session:
async with session.get(mime_url, headers=headers) as response:
if response.status != 200:
raise Exception(f"Failed to fetch MIME payload for {id}: {response.status} {await response.text()}")
mime_payload = await response.text()
# Save the MIME payload to the Maildir
os.makedirs(os.path.dirname(email_filepath), exist_ok=True)
with open(email_filepath, 'w') as f:
f.write(mime_payload)
progress.console.print(f"Saved message {id} to {target_dir}.")
except Exception as e:
progress.console.print(f"Failed to save message {id}: {e}")
def save_email_to_maildir(maildir_path, email_data, attachments_dir, progress):
# Create a new EmailMessage object
msg = EmailMessage()
received_datetime = email_data.get('receivedDateTime', '')
if received_datetime:
parsed_datetime = parser.isoparse(received_datetime)
msg['Date'] = format_datetime(parsed_datetime)
else:
msg['Date'] = ''
msg['Message-ID'] = email_data.get('id', '')
msg['Subject'] = email_data.get('subject', 'No Subject')
msg['From'] = email_data.get('from', {}).get('emailAddress', {}).get('address', 'unknown@unknown.com')
msg['To'] = ', '.join([recipient['emailAddress']['address'] for recipient in email_data.get('toRecipients', [])])
msg['Cc'] = ', '.join([recipient['emailAddress']['address'] for recipient in email_data.get('ccRecipients', [])])
# Convert the email body from HTML to Markdown
body_html = email_data.get('body', {}).get('content', '')
if email_data.get('body', {}).get('contentType', '').lower() == 'html':
markdown_converter = html2text.HTML2Text()
markdown_converter.ignore_images = True
markdown_converter.ignore_links = True
body_markdown = markdown_converter.handle(body_html)
else:
body_markdown = body_html
# Remove lines between any alphanumeric BannerStart and BannerEnd
body_markdown = re.sub(r'\w+BannerStart.*?\w+BannerEnd', '', body_markdown, flags=re.DOTALL)
msg.set_content(body_markdown)
# Download attachments
progress.console.print(f"Downloading attachments for message: {msg['Message-ID']}")
for attachment in email_data.get('attachments', []):
attachment_name = attachment.get('name', 'unknown')
attachment_content = attachment.get('contentBytes')
if attachment_content:
attachment_path = os.path.join(attachments_dir, attachment_name)
if not dry_run:
with open(attachment_path, 'wb') as f:
f.write(attachment_content.encode('utf-8'))
msg.add_attachment(attachment_content.encode('utf-8'), filename=attachment_name)
else:
progress.console.print(f"[DRY-RUN] Would save attachment to {attachment_path}")
# Determine the directory based on isRead
target_dir = 'cur' if email_data.get('isRead', False) else 'new'
email_filename = f"{msg['Message-ID']}.eml"
email_filepath = os.path.join(maildir_path, target_dir, email_filename)
# Check if the file already exists in any subfolder
for root, _, files in os.walk(maildir_path):
if email_filename in files:
progress.console.print(f"Message {msg['Message-ID']} already exists in {root}. Skipping save.")
return
# Save the email to the Maildir
if not dry_run:
with open(email_filepath, 'w') as f:
f.write(msg.as_string())
progress.console.print(f"Saved message {msg['Message-ID']}")
else:
progress.console.print(f"[DRY-RUN] Would save message {msg['Message-ID']}")
async def main():
# Save emails to Maildir
maildir_path = os.getenv('MAILDIR_PATH', os.path.expanduser('~/Mail')) + "/corteva"
attachments_dir = os.path.join(maildir_path, 'attachments')
os.makedirs(attachments_dir, exist_ok=True)
create_maildir_structure(maildir_path)
# Read Azure app credentials from environment variables
client_id = os.getenv('AZURE_CLIENT_ID')
tenant_id = os.getenv('AZURE_TENANT_ID')
if not client_id or not tenant_id:
raise ValueError("Please set the AZURE_CLIENT_ID and AZURE_TENANT_ID environment variables.")
# Token cache
cache = msal.SerializableTokenCache()
cache_file = 'token_cache.bin'
if os.path.exists(cache_file):
cache.deserialize(open(cache_file, 'r').read())
# Authentication
authority = f'https://login.microsoftonline.com/{tenant_id}'
scopes = ['https://graph.microsoft.com/Calendars.Read', 'https://graph.microsoft.com/Mail.ReadWrite']
app = msal.PublicClientApplication(client_id, authority=authority, token_cache=cache)
accounts = app.get_accounts()
if accounts:
token_response = app.acquire_token_silent(scopes, account=accounts[0])
else:
flow = app.initiate_device_flow(scopes=scopes)
if 'user_code' not in flow:
raise Exception("Failed to create device flow")
print(Panel(flow['message'], border_style="magenta", padding=2, title="MSAL Login Flow Link"))
token_response = app.acquire_token_by_device_flow(flow)
if 'access_token' not in token_response:
raise Exception("Failed to acquire token")
# Save token cache
with open(cache_file, 'w') as f:
f.write(cache.serialize())
access_token = token_response['access_token']
headers = {'Authorization': f'Bearer {access_token}', 'Prefer': 'outlook.body-content-type="text"'}
accounts = app.get_accounts()
if not accounts:
raise Exception("No accounts found")
maildir_path = os.getenv('MAILDIR_PATH', os.path.expanduser('~/Mail')) + "/corteva"
progress = Progress(
SpinnerColumn(),
MofNCompleteColumn(),
*Progress.get_default_columns()
)
with progress:
task_fetch = progress.add_task("[green]Syncing Inbox...", total=0)
task_calendar = progress.add_task("[cyan]Fetching calendar...", total=0)
task_read = progress.add_task("[blue]Marking as read...", total=0)
task_archive = progress.add_task("[yellow]Archiving mail...", total=0)
task_delete = progress.add_task("[red]Deleting mail...", total=0)
await asyncio.gather(
synchronize_maildir_async(maildir_path, headers, progress, task_read),
archive_mail_async(maildir_path, headers, progress, task_archive),
delete_mail_async(maildir_path, headers, progress, task_delete),
fetch_mail_async(maildir_path, attachments_dir, headers, progress, task_fetch),
fetch_calendar_async(headers, progress, task_calendar)
)
if __name__ == "__main__":
asyncio.run(main())