urmi-ai/backend/app/otp_service.py
2026-10-07 02:50:28 +05:30

131 lines
4.4 KiB
Python

from fastapi import HTTPException, status
from pydantic import BaseModel, Field
from sqlalchemy import select
from sqlalchemy.orm import Session
from .log_service import record_otp_log
from .message_send_service import SendMessageError, normalize_recipients
from .models import UrmiOtpProject, UserAccount
from .ultronsms_client import UltronsmsClient
from .urmiotp_catalog import OTP_TEMPLATES, URMI_OTP_SMS_CONFIG, build_dlt_otp_message
TEMPLATE_TYPES = {template["type"] for template in OTP_TEMPLATES}
class GenerateOtpPayload(BaseModel):
project_name: str = Field(min_length=3, max_length=30)
template_type: str = Field(min_length=3, max_length=40)
to: str = Field(min_length=10, max_length=15)
variables: dict[str, str] = Field(default_factory=dict)
def _require_otp_variables(variables: dict[str, str]) -> None:
otp_value = variables.get("otp", "").strip()
validity = variables.get("validity_minutes", "").strip()
if not otp_value or not validity:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="variables.otp and variables.validity_minutes are required",
)
def generate_otp_for_user(
db: Session,
user: UserAccount,
payload: GenerateOtpPayload,
) -> dict:
if payload.template_type not in TEMPLATE_TYPES:
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail=f"template_type must be one of: {', '.join(sorted(TEMPLATE_TYPES))}",
)
project = db.scalar(
select(UrmiOtpProject).where(
UrmiOtpProject.user_id == user.id,
UrmiOtpProject.project_name == payload.project_name.strip(),
)
)
if not project:
raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="UrmiOTP project not found")
if project.status != "approved":
raise HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail="UrmiOTP project is not approved yet",
)
try:
recipients = normalize_recipients([payload.to])
except SendMessageError as exc:
raise HTTPException(status_code=exc.status_code, detail=exc.detail) from exc
recipient = recipients[0]
_require_otp_variables(payload.variables)
try:
message = build_dlt_otp_message(payload.variables, project.message_label)
except ValueError as exc:
raise HTTPException(status_code=status.HTTP_422_UNPROCESSABLE_ENTITY, detail=str(exc)) from exc
client = UltronsmsClient()
try:
send_result = client.send_template_sms(
mobile=recipient,
message=message,
sender_id=URMI_OTP_SMS_CONFIG["sender_id"],
pe_id=URMI_OTP_SMS_CONFIG["pe_id"],
dlt_template_id=URMI_OTP_SMS_CONFIG["dlt_template_id"],
sender_type="transactional",
)
except RuntimeError as exc:
entry = record_otp_log(
db,
user,
project_name=project.project_name,
template_type=payload.template_type,
to_number=recipient,
status="failed",
error_message=str(exc),
)
raise HTTPException(
status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
detail=str(exc),
) from exc
if not send_result.success:
error_message = send_result.raw.get("ErrorMessage") or "SMS gateway rejected the request"
entry = record_otp_log(
db,
user,
project_name=project.project_name,
template_type=payload.template_type,
to_number=recipient,
status="failed",
error_message=error_message,
)
raise HTTPException(
status_code=status.HTTP_502_BAD_GATEWAY,
detail=error_message,
)
entry = record_otp_log(
db,
user,
project_name=project.project_name,
template_type=payload.template_type,
to_number=recipient,
status="sent",
job_id=send_result.job_id,
message_id=send_result.message_id,
)
return {
"success": True,
"log_id": str(entry.id),
"project_name": project.project_name,
"template_type": payload.template_type,
"to": send_result.number or recipient,
"message_preview": message,
"status": entry.status,
"job_id": send_result.job_id,
"message_id": send_result.message_id,
}