56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
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import random
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import string
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def _checksum(digits: str) -> int:
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return (97 - (int(digits) % 97)) % 97
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def generer_rib(establishment_code: int, guichet_code: int) -> str:
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etab = str(establishment_code).zfill(5)
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guichet = str(guichet_code).zfill(5)
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numero = "".join(random.choices(string.digits, k=11))
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checksum_digits = f"76{etab}{guichet}{numero}"
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cle = str(_checksum(checksum_digits)).zfill(2)
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return f"FR76 {etab} {guichet} {numero} {cle}"
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def valider_rib(rib: str) -> bool:
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parts = rib.replace("FR76 ", "").split()
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if len(parts) != 3:
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return False
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etab, guichet, rest = parts
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if len(etab) != 5 or len(guichet) != 5:
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return False
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if len(rest) != 13:
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return False
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numero = rest[:11]
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cle = rest[11:]
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if not etab.isdigit() or not guichet.isdigit() or not numero.isdigit() or not cle.isdigit():
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return False
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checksum_digits = f"76{etab}{guichet}{numero}"
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return _checksum(checksum_digits) == int(cle)
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def decoder_rib(rib: str) -> dict:
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parts = rib.replace("FR76 ", "").split()
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if len(parts) != 3:
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return None
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etab, guichet, rest = parts
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numero = rest[:11]
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cle = rest[11:]
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etab_int = int(etab)
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guichet_int = int(guichet)
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TYPE_MAP = {4: "particulier", 3: "entreprise", 2: "banque", 1: "institution"}
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return {
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"etablissement": etab_int,
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"guichet": guichet_int,
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"numero": numero,
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"cle": int(cle),
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"type_compte": TYPE_MAP.get(guichet_int, "inconnu"),
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"est_gouvernement": etab_int < 100,
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"valide": valider_rib(rib),
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}
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