Andreas WredeandClaude Sonnet 5
db22cb50d6
mmcli's inline "number=...,text=..." properties string breaks on plain spaces/quotes/colons in the text — found while testing van-sms-watch. Sidesteps that entirely by passing the message via --messaging-create-sms-with-text=<tempfile> instead. Tested live (multi-word text, punctuation, multi-line stdin input all delivered). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
97 lines
3.1 KiB
Python
Executable File
97 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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"""van-sms-send — send an SMS through the EC25 modem from the command line.
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Usage:
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van-sms-send <number> <text...>
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echo "message text" | van-sms-send <number>
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The message is written to a temp file and passed via mmcli's
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--messaging-create-sms-with-text (rather than inline in the "number=...,
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text=..." properties string) — mmcli's properties-string parser breaks on
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plain spaces/quotes/colons in inline text (found the hard way testing
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van-sms-watch), the file form has none of that trouble.
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Needs root: ModemManager's Messaging/Device.Control D-Bus actions are
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PolicyKit-gated and unauthorized for a plain user session (read-only
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actions like listing SMS work unprivileged; creating/sending don't). Run
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with sudo.
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Stdlib only.
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"""
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import json
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import subprocess
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import sys
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import tempfile
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def die(msg):
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print(f"van-sms-send: {msg}", file=sys.stderr)
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sys.exit(1)
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def run_json(args):
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"""Run mmcli with -J and return the parsed dict, dying on any failure."""
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try:
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out = subprocess.run(["mmcli", "-J", *args], capture_output=True,
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text=True, timeout=20)
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except Exception as e:
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die(f"failed to run mmcli {' '.join(args)}: {e}")
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if out.returncode != 0:
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die(f"mmcli {' '.join(args)} failed: {out.stderr.strip() or out.stdout.strip()}")
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try:
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return json.loads(out.stdout)
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except Exception as e:
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die(f"mmcli {' '.join(args)} gave unparseable JSON ({e}): {out.stdout}")
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def run_action(args):
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"""Run mmcli for an action whose success is exit-code only (no JSON body
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even with -J, e.g. --send). Dies on failure."""
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try:
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out = subprocess.run(["mmcli", *args], capture_output=True, text=True, timeout=20)
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except Exception as e:
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die(f"failed to run mmcli {' '.join(args)}: {e}")
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if out.returncode != 0:
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die(f"mmcli {' '.join(args)} failed: {out.stderr.strip() or out.stdout.strip()}")
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def find_modem():
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modems = run_json(["-L"]).get("modem-list") or []
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return modems[0] if modems else None
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def main():
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if len(sys.argv) < 2:
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die("usage: van-sms-send <number> <text...> (or pipe text on stdin)")
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number = sys.argv[1]
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if len(sys.argv) > 2:
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text = " ".join(sys.argv[2:])
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elif not sys.stdin.isatty():
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text = sys.stdin.read().rstrip("\n")
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else:
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die("no message text given as an argument or on stdin")
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if not text:
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die("message text is empty")
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modem = find_modem()
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if not modem:
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die("no modem found (mmcli -L found none)")
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with tempfile.NamedTemporaryFile("w", suffix=".txt") as f:
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f.write(text)
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f.flush()
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created = run_json(["-m", modem, f"--messaging-create-sms=number={number}",
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f"--messaging-create-sms-with-text={f.name}"])
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sms_path = (created.get("modem") or {}).get("messaging", {}).get("created-sms")
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if not sms_path:
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die(f"couldn't find created SMS path in mmcli output: {created}")
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run_action(["-m", modem, "-s", sms_path, "--send"])
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print(f"sent to {number}: {text}")
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if __name__ == "__main__":
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main()
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