107 lines
3.5 KiB
Python
107 lines
3.5 KiB
Python
"""Бизнес-логика AMI: канал по типу линии, originate, ping."""
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from __future__ import annotations
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import re
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from typing import TYPE_CHECKING
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from core.models import ConnectorConfig
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from .ami import AmiClient, AmiError, DEFAULT_PORT
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if TYPE_CHECKING:
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from apps.employees.models import Employee
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EXTEN_RE = re.compile(r'^\d{2,10}$')
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CONNECTOR = 'asterisk'
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DEFAULT_SIP_CHANNEL = 'PJSIP/{exten}'
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DEFAULT_ANALOG_CHANNEL = 'DAHDI/{exten}'
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DEFAULT_CONTEXT = 'from-internal'
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class TelephonyError(Exception):
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"""Ошибка звонка с понятным текстом для пользователя."""
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def get_ami_config() -> ConnectorConfig | None:
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return ConnectorConfig.get_for(CONNECTOR)
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def ami_is_enabled() -> bool:
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return get_ami_config() is not None
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def sanitize_exten(raw: str) -> str:
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digits = re.sub(r'\D', '', raw or '')
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if not EXTEN_RE.fullmatch(digits):
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raise TelephonyError('Некорректный внутренний номер.')
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return digits
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def channel_for_employee(employee, extra: dict | None = None) -> str:
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extra = extra or {}
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exten = sanitize_exten(employee.internal_number)
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line = getattr(employee, 'internal_line_type', '') or 'analog'
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if line == 'sip':
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template = (extra.get('sip_channel') or DEFAULT_SIP_CHANNEL)
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else:
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template = (extra.get('analog_channel') or DEFAULT_ANALOG_CHANNEL)
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return str(template).replace('{exten}', exten)
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def _client_from_config(cfg: ConnectorConfig) -> AmiClient:
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extra = cfg.extra_config or {}
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timeout = extra.get('timeout', 8)
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try:
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timeout = float(timeout)
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except (TypeError, ValueError):
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timeout = 8
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return AmiClient(
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host=cfg.host,
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port=cfg.port or DEFAULT_PORT,
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username=cfg.username,
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secret=cfg.password,
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timeout=timeout,
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use_ssl=bool(cfg.use_ssl),
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)
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def ping_ami(cfg: ConnectorConfig | None = None) -> dict:
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cfg = cfg or get_ami_config()
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if cfg is None:
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raise TelephonyError('Коннектор Asterisk AMI выключен.')
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if not cfg.host or not cfg.username or not cfg.password:
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raise TelephonyError('В AMI не заданы хост, логин или секрет.')
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with _client_from_config(cfg) as client:
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return client.ping()
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def originate_between(caller: Employee, callee: Employee) -> dict:
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if caller.pk == callee.pk:
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raise TelephonyError('Нельзя позвонить самому себе.')
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if not caller.internal_number:
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raise TelephonyError('У вас не указан внутренний номер.')
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if not callee.internal_number:
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raise TelephonyError('У сотрудника нет внутреннего номера.')
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cfg = get_ami_config()
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if cfg is None:
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raise TelephonyError('Коннектор Asterisk AMI выключен.')
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extra = cfg.extra_config or {}
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context = extra.get('originate_context') or DEFAULT_CONTEXT
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channel = channel_for_employee(caller, extra)
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dest = sanitize_exten(callee.internal_number)
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caller_id = f'{caller.short_name} <{sanitize_exten(caller.internal_number)}>'
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try:
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with _client_from_config(cfg) as client:
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return client.originate(
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channel=channel,
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exten=dest,
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context=context,
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caller_id=caller_id,
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)
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except AmiError as exc:
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raise TelephonyError(str(exc)) from exc
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