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Biblioteca cliente para integracao com BFK AuthSystem

Project description

BFK AuthSystem - Cliente Python

Biblioteca Python para integracao de aplicacoes desktop com o BFK AuthSystem.

Instalacao

# Instalacao basica
pip install bfk-authsystem

# Com UI (dialogs PyQt5)
pip install bfk-authsystem[ui]

# Com hardware info avancado
pip install bfk-authsystem[hardware]

# Instalacao completa
pip install bfk-authsystem[full]

Uso Basico

from bfk_authsystem import LicenseValidator

# Criar validador
validator = LicenseValidator(
    server_url='https://api.example.com/api/v1',
    app_code='MYAPP'
)

# Verificar licenca
result = validator.verify(username='user', password='pass')

if result.valid:
    print('Licenca valida!')
    print(f'Dias ate reautenticacao: {result.days_until_reauth}')
else:
    print(f'Licenca invalida: {result.message}')

Primeira Execucao (Ativacao de Licenca)

Na primeira execucao, o parametro license_key e obrigatorio para associar a maquina a licenca:

from bfk_authsystem import LicenseValidator

validator = LicenseValidator(
    server_url='https://api.example.com/api/v1',
    app_code='MYAPP'
)

# Primeira execucao - license_key obrigatorio
result = validator.verify(
    username='user',
    password='pass',
    license_key='XXXX-XXXX-XXXX-XXXX'  # Chave fornecida ao usuario
)

if result.valid:
    print('Licenca ativada com sucesso!')
elif result.error_code == 'LICENSE_KEY_REQUIRED':
    print('Chave de licenca necessaria para ativar')

Apos a primeira ativacao, license_key nao e mais necessario:

# Execucoes subsequentes - license_key opcional
result = validator.verify(username='user', password='pass')

Uso com UI (PyQt5)

from bfk_authsystem import LicenseValidator
from bfk_authsystem.ui import show_login_dialog, PYQT_AVAILABLE

if not PYQT_AVAILABLE:
    print("PyQt5 nao instalado")
    exit(1)

validator = LicenseValidator(
    server_url='https://api.example.com/api/v1',
    app_code='MYAPP'
)

# Obter app config para personalizacao
config = validator.get_app_config()

# Mostrar dialog de login
credentials = show_login_dialog(app_config=config)
if credentials:
    username, password = credentials
    result = validator.verify(username=username, password=password)

    if result.valid:
        print('Login bem-sucedido!')

Classes Principais

LicenseValidator

Classe principal para validacao de licencas.

validator = LicenseValidator(
    server_url='https://api.example.com/api/v1',
    app_code='MYAPP',
    timeout=30.0,              # Timeout em segundos
    max_offline_days=7,        # Dias maximos em modo offline
    verify_ssl=True,           # Verificar certificado SSL
    cache_enabled=True         # Habilitar cache local
)

# Propriedades
validator.machine_id          # ID unico da maquina
validator.hostname            # Nome do computador
validator.is_online           # Conexao com servidor
validator.current_user        # Usuario atual (apos login)
validator.app_config          # Configuracao da aplicacao

# Metodos principais
result = validator.verify(
    username=username,
    password=password,
    license_key=license_key   # Obrigatorio na primeira execucao
)
tokens = validator.authenticate(username, password) # Autenticar
validator.logout()                                  # Logout
validator.refresh_session()                        # Renovar sessao

ValidationResult

Resultado da verificacao de licenca.

result.valid              # bool: Licenca valida
result.message            # str: Mensagem
result.requires_action    # RequiredAction: Acao necessaria
result.days_offline       # int: Dias em modo offline
result.days_until_reauth  # int: Dias ate proxima reautenticacao
result.app_config         # AppConfig: Configuracao da aplicacao
result.license_info       # LicenseInfo: Informacoes da licenca
result.is_offline         # bool: Verificacao offline
result.schedule_info      # dict: Restricoes de horario (v1.1.0+)

RequiredAction

Acoes que podem ser necessarias:

from bfk_authsystem import RequiredAction

RequiredAction.NONE            # Nenhuma acao
RequiredAction.CHANGE_PASSWORD # Usuario deve trocar senha
RequiredAction.SETUP_MFA       # Usuario deve configurar MFA
RequiredAction.VERIFY_MFA      # Usuario deve verificar MFA
RequiredAction.REAUTH          # Usuario deve reautenticar

Modo Offline

A biblioteca suporta modo offline com cache local criptografado:

validator = LicenseValidator(
    server_url='https://api.example.com/api/v1',
    app_code='MYAPP',
    max_offline_days=7,
    cache_enabled=True
)

# Verificacao funciona mesmo offline (se houver cache valido)
result = validator.verify(username='user', password='pass')

if result.is_offline:
    print(f'Modo offline ({result.days_offline} dias)')
    print(f'Dias restantes: {result.days_until_reauth}')

MFA (Autenticacao de Dois Fatores)

# Setup MFA
mfa_info = validator.setup_mfa()
print(f'Secret: {mfa_info.secret}')
print(f'QR Code Base64: {mfa_info.qr_code}')

# Habilitar MFA com token
recovery_codes = validator.enable_mfa(token='123456')
print(f'Recovery codes: {recovery_codes}')

# Verificar MFA
success = validator.verify_mfa(token='123456')

# Desabilitar MFA
success = validator.disable_mfa(token='123456')

Gerenciamento de Sessoes

# Listar sessoes ativas
sessions = validator.get_active_sessions()
for s in sessions:
    print(f'{s.device_info} - {s.ip_address}')
    if s.is_current:
        print('  (sessao atual)')

# Revogar sessao
validator.revoke_session(session_id=123)

# Revogar todas as outras sessoes
count = validator.revoke_all_sessions()
print(f'{count} sessoes revogadas')

Tratamento de Erros

from bfk_authsystem import (
    AuthSystemError,
    AuthenticationError,
    MFARequiredError,
    LicenseError,
    LicenseExpiredError,
    NetworkError,
    CircuitBreakerOpenError
)

try:
    result = validator.verify(username='user', password='pass')
except AuthenticationError as e:
    print(f'Credenciais invalidas: {e}')
except MFARequiredError as e:
    print('MFA necessario')
    # Mostrar dialog de MFA
except LicenseExpiredError as e:
    print('Licenca expirada')
except NetworkError as e:
    print(f'Erro de conexao: {e}')
except CircuitBreakerOpenError as e:
    print('Servidor temporariamente indisponivel')
except AuthSystemError as e:
    print(f'Erro: {e}')

Dialogs UI (PyQt5)

from bfk_authsystem.ui import (
    PYQT_AVAILABLE,
    show_login_dialog,
    show_mfa_verify_dialog,
    show_change_password_dialog,
    show_status_dialog
)

if PYQT_AVAILABLE:
    # Login
    credentials = show_login_dialog(app_config=config)

    # MFA
    token = show_mfa_verify_dialog(app_config=config)

    # Troca de senha
    passwords = show_change_password_dialog(app_config=config)

    # Status da licenca
    show_status_dialog(
        app_config=config,
        user_info=user,
        license_info=license,
        sessions=sessions
    )

Restricoes de Horario (v1.1.0+)

Licencas podem ter restricoes de horario configuradas pelo administrador. Quando uma licenca tem restricoes, o campo schedule_info contem as informacoes:

result = validator.verify(username='user', password='pass')

if result.valid and result.schedule_info:
    info = result.schedule_info

    if info.get('has_restrictions'):
        print(f"Fuso horario: {info.get('timezone')}")
        print(f"Dias com restricao: {info.get('restricted_days')}")

        # Horarios permitidos por dia
        for dia, horarios in info.get('schedule', {}).items():
            print(f"  {dia}: {horarios}")

Estrutura de schedule_info:

{
    "has_restrictions": True,              # Se tem restricoes
    "timezone": "America/Sao_Paulo",       # Fuso horario
    "restricted_days": [                   # Dias com restricao
        "Segunda-feira",
        "Terca-feira"
    ],
    "total_restricted_days": 2,            # Total de dias
    "schedule": {                          # Horarios permitidos
        "Segunda-feira": "08:00-12:00, 14:00-18:00",
        "Terca-feira": "08:00-12:00"
    }
}

Notas:

  • Dias sem restricao = uso liberado 24h
  • Cada dia pode ter ate 2 intervalos de horario
  • Se has_restrictions for False, a licenca nao tem restricoes

Resiliencia

A biblioteca inclui mecanismos de resiliencia:

  • Retry com backoff exponencial: Tentativas automaticas em caso de falha
  • Circuit Breaker: Protecao contra falhas em cascata
  • Cache offline: Funcionamento sem conexao

Requisitos

  • Python >= 3.8
  • requests >= 2.31.0
  • cryptography >= 41.0.0
  • PyQt5 >= 5.15.0 (opcional, para UI)

Licenca

MIT License

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