37b032771f
Monitor an IMAP mailbox via IDLE for iMIP emails (invitations, RSVPs, cancellations) and ICS attachments, then update a CalDAV calendar. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
105 lines
2.6 KiB
Python
105 lines
2.6 KiB
Python
"""YAML configuration loading and validation."""
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import argparse
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import sys
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from dataclasses import dataclass, field
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from pathlib import Path
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import yaml
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@dataclass
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class ImapConfig:
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host: str
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port: int
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username: str
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password: str
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folder: str = "INBOX"
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ssl: bool = True
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@dataclass
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class CaldavConfig:
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url: str
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username: str
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password: str
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@dataclass
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class LoggingConfig:
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level: str = "INFO"
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@dataclass
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class Config:
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imap: ImapConfig
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caldav: CaldavConfig
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logging: LoggingConfig = field(default_factory=LoggingConfig)
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def load_config(path: Path) -> Config:
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"""Load and validate configuration from a YAML file."""
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if not path.exists():
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print(f"Error: config file not found: {path}", file=sys.stderr)
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sys.exit(1)
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with open(path) as f:
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raw = yaml.safe_load(f)
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if not isinstance(raw, dict):
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print("Error: config file must be a YAML mapping", file=sys.stderr)
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sys.exit(1)
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for section in ("imap", "caldav"):
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if section not in raw:
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print(f"Error: missing required config section: {section}", file=sys.stderr)
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sys.exit(1)
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imap_raw = raw["imap"]
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for key in ("host", "username", "password"):
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if key not in imap_raw:
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print(f"Error: missing required imap config key: {key}", file=sys.stderr)
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sys.exit(1)
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caldav_raw = raw["caldav"]
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for key in ("url", "username", "password"):
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if key not in caldav_raw:
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print(f"Error: missing required caldav config key: {key}", file=sys.stderr)
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sys.exit(1)
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imap_cfg = ImapConfig(
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host=imap_raw["host"],
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port=imap_raw.get("port", 993),
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username=imap_raw["username"],
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password=imap_raw["password"],
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folder=imap_raw.get("folder", "INBOX"),
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ssl=imap_raw.get("ssl", True),
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)
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caldav_cfg = CaldavConfig(
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url=caldav_raw["url"],
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username=caldav_raw["username"],
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password=caldav_raw["password"],
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)
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logging_raw = raw.get("logging", {})
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logging_cfg = LoggingConfig(
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level=logging_raw.get("level", "INFO"),
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)
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return Config(imap=imap_cfg, caldav=caldav_cfg, logging=logging_cfg)
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def parse_args() -> Path:
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"""Parse CLI arguments and return the config file path."""
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parser = argparse.ArgumentParser(
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description="IMAP IDLE to CalDAV daemon",
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)
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parser.add_argument(
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"-c", "--config",
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default="config.yaml",
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help="Path to YAML config file (default: config.yaml)",
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)
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args = parser.parse_args()
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return Path(args.config)
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