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#!/usr/bin/env python3
"""Generate rclone combine configs for Microsoft Teams channel drives."""
from __future__ import annotations
import argparse
import json
import re
import sys
import time
import urllib.error
import urllib.parse
import urllib.request
from pathlib import Path
GRAPH = "https://graph.microsoft.com/v1.0"
HERE = Path(__file__).resolve().parent
DEFAULT_CONFIG = HERE / "config.json"
REMOTE_TMPL = (HERE / "remote-template.conf").read_text()
COMBINE_TMPL = (HERE / "combine-template.conf").read_text()
def sanitize_remote(name: str) -> str:
return re.sub(r"[^\w.-]+", "_", name).strip("_")
def get_token(tenant: str, client_id: str, client_secret: str) -> str:
data = urllib.parse.urlencode(
{
"client_id": client_id,
"client_secret": client_secret,
"scope": "https://graph.microsoft.com/.default",
"grant_type": "client_credentials",
}
).encode()
req = urllib.request.Request(
f"https://login.microsoftonline.com/{tenant}/oauth2/v2.0/token",
data=data,
method="POST",
)
with urllib.request.urlopen(req) as resp:
return json.load(resp)["access_token"]
def graph_get(url: str, token: str) -> dict:
req = urllib.request.Request(url, headers={"Authorization": f"Bearer {token}"})
with urllib.request.urlopen(req) as resp:
return json.load(resp)
def graph_paged(url: str, token: str) -> list:
items: list = []
while url:
payload = graph_get(url, token)
items.extend(payload.get("value", []))
url = payload.get("@odata.nextLink")
return items
def find_team(teams: list, name: str, exact: bool) -> dict | None:
for team in teams:
dn = team.get("displayName") or ""
if exact and dn == name:
return team
if not exact and dn.lower().startswith(name.lower()):
return team
return None
def collect_channels(team_id: str, token: str) -> list[dict]:
channels = graph_paged(f"{GRAPH}/teams/{team_id}/channels", token)
results = []
for ch in channels:
time.sleep(0.25)
folder = graph_get(
f"{GRAPH}/teams/{team_id}/channels/{ch['id']}/filesFolder", token
)
results.append(
{
"displayName": ch["displayName"],
"driveId": folder["parentReference"]["driveId"],
"membershipType": ch.get("membershipType", "standard"),
}
)
print(f" {ch['membershipType']}: {ch['displayName']} -> {folder['parentReference']['driveId']}")
return results
def build_config(team_name: str, channels: list[dict], creds: dict) -> str:
team_remote = sanitize_remote(team_name)
standard = [c for c in channels if c["membershipType"] == "standard"]
other = [c for c in channels if c["membershipType"] != "standard"]
blocks: list[str] = []
upstreams: list[str] = []
written_remotes: set[str] = set()
def remote_block(name: str, drive_id: str) -> str:
return REMOTE_TMPL.format(
name=name,
drive_id=drive_id,
client_id=creds["client_id"],
client_secret=creds["client_secret"],
tenant=creds["tenant"],
)
if standard:
blocks.append(remote_block(team_remote, standard[0]["driveId"]))
written_remotes.add(team_remote)
for ch in standard:
name = ch["displayName"]
upstreams.append(f'"{name}={team_remote}:{name}"')
for ch in other:
remote = sanitize_remote(ch["displayName"])
if remote in written_remotes:
remote = f"{remote}_{ch['membershipType']}"
blocks.append(remote_block(remote, ch["driveId"]))
written_remotes.add(remote)
name = ch["displayName"]
# private drives nest files under a folder named after the channel
if ch["membershipType"] == "private":
upstreams.append(f'"{name}={remote}:{name}"')
else:
# shared / unknownFutureValue: files sit at drive root
upstreams.append(f'"{name}={remote}:"')
if upstreams:
blocks.append(COMBINE_TMPL.format(f"{team_remote}_combine", " ".join(upstreams)))
return "\n".join(blocks)
def main() -> int:
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--team-name", nargs="+", help="Team display name prefix(es)")
parser.add_argument("--team-id", help="Team id (skips name lookup)")
parser.add_argument("--exact", action="store_true", help="Exact displayName match")
parser.add_argument(
"--config",
type=Path,
default=DEFAULT_CONFIG,
help=f"Path to config.json (default: {DEFAULT_CONFIG})",
)
parser.add_argument(
"-o",
"--outdir",
type=Path,
default=HERE,
help="Output directory for .conf files",
)
args = parser.parse_args()
if not args.team_id and not args.team_name:
parser.error("provide --team-name and/or --team-id")
cfg = json.loads(args.config.read_text())
creds = {
"tenant": cfg["tenantId"],
"client_id": cfg["clientID"],
"client_secret": cfg["clientSecret"],
}
print("Authenticating...")
token = get_token(creds["tenant"], creds["client_id"], creds["client_secret"])
args.outdir.mkdir(parents=True, exist_ok=True)
targets = []
if args.team_id:
team = graph_get(f"{GRAPH}/teams/{args.team_id}", token)
print(f"Team: {team['displayName']} ({args.team_id})")
targets.append(team)
if args.team_name:
print("Listing teams...")
all_teams = graph_paged(f"{GRAPH}/teams/", token)
for requested in args.team_name:
team = find_team(all_teams, requested, args.exact)
if not team:
print(f"ERROR: no team matched '{requested}'", file=sys.stderr)
continue
print(f"Found: {team['displayName']} ({team['id']})")
targets.append(team)
for team in targets:
print(f"\nChannels for {team['displayName']}:")
try:
channels = collect_channels(team["id"], token)
except urllib.error.HTTPError as e:
print(f"ERROR fetching channels: {e}", file=sys.stderr)
continue
if not channels:
print(f"ERROR: no channels for {team['displayName']}", file=sys.stderr)
continue
conf = build_config(team["displayName"], channels, creds)
out = args.outdir / f"{sanitize_remote(team['displayName'])}.conf"
out.write_text(conf)
print(f"Wrote {out}")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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