forked from Shared/esg
279 lines
8.7 KiB
TypeScript
279 lines
8.7 KiB
TypeScript
import { Injectable, Logger } from '@nestjs/common';
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import { ConfigService } from '@nestjs/config';
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import { AxiosError, AxiosInstance } from 'axios';
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import {
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createOutboundAxiosInstance,
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isOutboundHttpDebugEnabled,
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} from '../../common/helpers/http-client.helper';
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import { InquiryType } from '../../common/enums/inquiry-type.enum';
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import { ProviderName } from '../../common/enums/provider-name.enum';
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import { AmitisAuthServiceConfig } from '../../config/configuration';
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import { GeneralTokenDocument } from '../schemas/general-token.schema';
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import { GeneralTokenService } from '../services/general-token.service';
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interface CentInsurTokenResponse {
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Token?: string;
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token?: string;
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AccessToken?: string;
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accessToken?: string;
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access_token?: string;
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RefreshToken?: string;
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refreshToken?: string;
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refresh_token?: string;
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TokenType?: string;
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tokenType?: string;
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token_type?: string;
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ExpiresIn?: number | string;
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expiresIn?: number | string;
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expires_in?: number | string;
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IsSucceed?: boolean;
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LoginStatus?: number;
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data?: CentInsurTokenResponse;
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}
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interface AmitisAuthToken {
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accessToken: string;
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refreshToken?: string;
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tokenType: string;
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expiresIn: number;
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}
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/**
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* AMITIS Authentication Service
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* Provides token-based authentication for Hamta and Moallem providers
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* This is NOT a provider itself, but an authentication helper service
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*/
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@Injectable()
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export class AmitisProvider {
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readonly name = ProviderName.AMITIS;
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private readonly logger = new Logger(AmitisProvider.name);
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private readonly httpClient: AxiosInstance;
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private readonly config: AmitisAuthServiceConfig;
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constructor(
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configService: ConfigService,
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private readonly generalTokenService: GeneralTokenService,
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) {
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this.config = configService.get<AmitisAuthServiceConfig>('amitis')!;
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this.httpClient = createOutboundAxiosInstance({
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baseURL: this.config.baseUrl,
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timeout: this.config.timeout,
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});
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}
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isEnabled(): boolean {
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return this.config.enabled && Boolean(this.config.baseUrl);
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}
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/**
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* Get access token for a specific provider and inquiry type
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* Handles token caching, refresh, and 24-hour expiration
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* - Access token expires in 20 minutes
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* - Refresh token expires in 24 hours from creation
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*/
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async getAccessToken(
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providerName: ProviderName,
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inquiryType: InquiryType,
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username: string,
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password: string,
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): Promise<string> {
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const tokenKey = this.getTokenKey(providerName, inquiryType);
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const latestToken = await this.generalTokenService.getLatestToken(tokenKey);
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// Use cached token if valid and within 24-hour window
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if (latestToken && !this.isExpired(latestToken) && this.isWithin24Hours(latestToken)) {
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return latestToken.accessToken;
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}
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// Try to refresh if we have a refresh token and it's within 24 hours
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if (latestToken?.refreshToken && this.isWithin24Hours(latestToken)) {
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try {
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return await this.refreshAccessToken(latestToken, providerName, inquiryType);
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} catch (error) {
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this.logger.warn(
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`AMITIS token refresh failed for ${providerName}/${inquiryType}, requesting a new token: ${
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error instanceof Error ? error.message : String(error)
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}`,
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);
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}
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}
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// Login to get new token
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return this.login(providerName, inquiryType, username, password);
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}
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private async login(
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providerName: ProviderName,
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inquiryType: InquiryType,
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username: string,
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password: string,
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): Promise<string> {
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const loginBody = new URLSearchParams({
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username: username.toLowerCase(),
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password,
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});
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try {
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const loginUrl = `${this.config.baseUrl}${this.config.loginPath}`;
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this.logger.log(
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`AMITIS login → POST ${loginUrl} | provider=${providerName} | inquiry=${inquiryType} | username=${username.toLowerCase()}`,
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);
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const response = await this.httpClient.post<CentInsurTokenResponse>(
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this.config.loginPath,
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loginBody.toString(),
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{
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headers: {
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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},
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);
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if (isOutboundHttpDebugEnabled()) {
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this.logger.log(
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`AMITIS login ← ${response.status} | provider=${providerName} | inquiry=${inquiryType} | bodyKeys=${Object.keys(response.data ?? {}).join(',') || 'none'}`,
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);
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}
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const token = this.extractToken(response.data);
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await this.saveToken(token, providerName, inquiryType, username, password, 'login');
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return token.accessToken;
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} catch (error) {
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throw this.toAuthError(`AMITIS login failed for ${providerName}/${inquiryType}`, error);
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}
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}
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private async refreshAccessToken(
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latestToken: GeneralTokenDocument,
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providerName: ProviderName,
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inquiryType: InquiryType,
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): Promise<string> {
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try {
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const response = await this.httpClient.post<CentInsurTokenResponse>(this.config.refreshPath, {
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Token: latestToken.accessToken,
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RefreshToken: latestToken.refreshToken,
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});
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const token = this.extractToken(response.data, latestToken.refreshToken);
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await this.saveToken(
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token,
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providerName,
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inquiryType,
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latestToken.username,
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latestToken.clientSecret,
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'refresh',
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);
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return token.accessToken;
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} catch (error) {
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throw this.toAuthError(
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`AMITIS refresh failed for ${providerName}/${inquiryType}`,
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error,
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);
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}
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}
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private async saveToken(
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token: AmitisAuthToken,
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providerName: ProviderName,
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inquiryType: InquiryType,
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username: string,
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password: string,
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scope: string,
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): Promise<void> {
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await this.generalTokenService.create({
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serviceProvider: this.getTokenKey(providerName, inquiryType),
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tokenType: token.tokenType,
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url: this.config.baseUrl,
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clientId: username.toLowerCase(),
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clientSecret: password,
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username: username.toLowerCase(),
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scope,
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accessToken: token.accessToken,
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refreshToken: token.refreshToken,
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expiresIn: token.expiresIn,
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expiresAt: new Date(Date.now() + token.expiresIn * 1000),
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});
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}
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private extractToken(
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responseBody: CentInsurTokenResponse,
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fallbackRefreshToken?: string,
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): AmitisAuthToken {
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const body = responseBody.data ?? responseBody;
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if (body.IsSucceed === false) {
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throw new Error(
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`AMITIS login rejected (LoginStatus=${body.LoginStatus ?? 'unknown'})`,
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);
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}
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const accessToken =
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body.Token ?? body.token ?? body.AccessToken ?? body.accessToken ?? body.access_token;
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if (!accessToken || !String(accessToken).trim()) {
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const bodyPreview = JSON.stringify(responseBody).slice(0, 500);
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throw new Error(
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`AMITIS auth response did not include an access token | body=${bodyPreview}`,
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);
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}
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const expiresIn = Number(body.ExpiresIn ?? body.expiresIn ?? body.expires_in ?? 20 * 60);
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return {
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accessToken,
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refreshToken:
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body.RefreshToken ?? body.refreshToken ?? body.refresh_token ?? fallbackRefreshToken,
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tokenType: body.TokenType ?? body.tokenType ?? body.token_type ?? 'Bearer',
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expiresIn: Number.isFinite(expiresIn) && expiresIn > 0 ? expiresIn : 20 * 60,
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};
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}
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private isExpired(token: GeneralTokenDocument): boolean {
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// Access token expires in 20 minutes, add 60 second buffer
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const refreshBufferMs = 60 * 1000;
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return !token.expiresAt || Date.now() + refreshBufferMs >= token.expiresAt.getTime();
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}
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/**
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* Check if token is within 24-hour window from creation
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* Refresh token is valid for 24 hours after initial login
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*/
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private isWithin24Hours(token: GeneralTokenDocument): boolean {
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if (!token.createdAt) {
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return false;
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}
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const tokenCreationTime = token.createdAt.getTime();
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const currentTime = Date.now();
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const twentyFourHoursMs = 24 * 60 * 60 * 1000;
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return currentTime - tokenCreationTime < twentyFourHoursMs;
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}
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private getTokenKey(providerName: ProviderName, inquiryType: InquiryType): string {
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return `${ProviderName.AMITIS}:${providerName}:${inquiryType}`;
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}
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private toAuthError(message: string, error: unknown): Error {
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if (error instanceof AxiosError) {
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const status = error.response?.status ?? 'NETWORK_ERROR';
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const body =
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error.response?.data !== undefined
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? JSON.stringify(error.response.data).slice(0, 500)
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: undefined;
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return new Error(
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body ? `${message}: ${status} ${error.message} | body=${body}` : `${message}: ${status} ${error.message}`,
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);
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}
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if (error instanceof Error) {
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return new Error(`${message}: ${error.message}`);
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}
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return new Error(`${message}: ${String(error)}`);
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}
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}
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// Made with Bob
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