Condition LastPass Export

lp_condition.py

#!/usr/bin/env python3

import csv
import html
import sys
from pathlib import Path

if len(sys.argv) != 2:
    print(f"Usage:\n\t{sys.argv[0]} [lastpass_export.csv]")
    sys.exit(1)

lp = Path(sys.argv[1])
large = lp.parent / (lp.stem + "_large" + lp.suffix)
values = []
large_values = []

for entry in csv.DictReader(lp.open("r")):
    # Expected headers: url,username,password,extra,name,grouping,fav
    del entry["grouping"]  # No folders!

    for k, v in entry.items():
        if k == "url":
            entry[k] = v
        else:
            entry[k] = html.unescape(v)

    # As a rule of thumb, character counts will grow between 30-50% when encrypted.
    if (len(entry["password"]) * 1.4) > 1000:
        print(f"Warning! password for {entry['url']} is too long. Moving to 'extra' field.")
        if entry["extra"]:
            entry["extra"] = "\n".join(entry["password"], entry["extra"])
        else:
            entry["extra"] = entry["password"]
        del entry["password"]

    if (len(entry["extra"]) * 1.4) > 10000:
        print(f"Error! 'extra' entry for {entry['url']} is too long. You may need to upload it as an attachment.")
        large_values.append(entry)
        print(f"Added entry to {large}")
        continue

    values.append(entry)

with lp.open("w") as f:
    writer = csv.DictWriter(f, fieldnames=list(values[0].keys()))
    writer.writeheader()

    for v in values:
        writer.writerow(v)

if large_values:
    with large.open("w") as f:
        writer = csv.DictWriter(f, fieldnames=list(large_values[0].keys()))
        writer.writeheader()

        for v in large_values:
            writer.writerow(v)