Initial Agrarmonitor connector
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import axios, { type AxiosInstance, type AxiosRequestConfig, type AxiosResponse } from 'axios';
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import { wrapper } from 'axios-cookiejar-support';
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import { JSDOM } from 'jsdom';
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import { CookieJar } from 'tough-cookie';
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import type {
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AgrarmonitorApiCustomer,
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AgrarmonitorConnectorOptions,
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AgrarmonitorConnectorResult,
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AgrarmonitorDeviceRegistrationOptions,
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AgrarmonitorDeviceRegistrationResult,
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AgrarmonitorFetchCustomersOptions,
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AgrarmonitorFreischaltungStatus,
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AgrarmonitorLoginStrategy,
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AgrarmonitorRegistrierungStatus,
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Logger,
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} from './types';
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type RetryableAxiosRequestConfig = AxiosRequestConfig & {
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_agrarmonitorRetry?: boolean;
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};
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export class AgrarmonitorConnector implements AgrarmonitorConnectorResult {
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public http!: AxiosInstance;
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private readonly baseUrl: string;
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private readonly apiBaseUrl: string;
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private readonly timeoutMs: number;
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private readonly autoLogin: boolean;
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private readonly autoRetry: boolean;
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private readonly loginStrategy: AgrarmonitorLoginStrategy;
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private readonly logger?: Logger;
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private cookieJar!: CookieJar;
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private loginInProgress: Promise<void> | null = null;
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constructor(private readonly options: AgrarmonitorConnectorOptions) {
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this.baseUrl = options.baseUrl ?? 'https://admin7.agrarmonitor.de';
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this.apiBaseUrl = options.apiBaseUrl ?? 'https://api.agrarmonitor.de';
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this.timeoutMs = options.timeoutMs ?? 15000;
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this.autoLogin = options.autoLogin ?? true;
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this.autoRetry = options.autoRetry ?? true;
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this.loginStrategy = options.loginStrategy ?? 'auto';
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this.logger = options.logger;
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}
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async init(): Promise<this> {
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this.cookieJar = await this.options.cookieStore.load();
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this.http = this.createHttpClient();
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if (this.autoLogin) {
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const valid = await this.isSessionValid();
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if (!valid) {
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await this.login();
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}
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}
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return this;
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}
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async login(): Promise<void> {
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if (this.loginInProgress) {
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return this.loginInProgress;
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}
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this.loginInProgress = this.performLogin().finally(() => {
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this.loginInProgress = null;
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});
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return this.loginInProgress;
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}
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async clearSession(): Promise<void> {
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this.cookieJar = new CookieJar();
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await this.options.cookieStore.clear();
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this.http = this.createHttpClient();
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}
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async saveSession(): Promise<void> {
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await this.options.cookieStore.save(this.cookieJar);
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}
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async getCookieCount(url = this.baseUrl): Promise<number> {
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return this.cookieJar.getCookiesSync(url).length;
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}
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async checkFreigeschaltet(): Promise<AgrarmonitorFreischaltungStatus> {
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const response = await this.http.get('/', {
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maxRedirects: 0,
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validateStatus: status => status >= 200 && status < 400,
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});
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await this.saveSession();
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const redirectLocation = this.getHeader(response, 'location');
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const redirected = response.status >= 300 && response.status < 400 && this.isFreischaltungUrl(redirectLocation);
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return {
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freigeschaltet: !redirected,
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status: response.status,
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redirected,
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redirectLocation,
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timestamp: new Date().toISOString(),
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cookies: await this.getCookieCount(),
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};
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}
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async checkRegistriert(): Promise<AgrarmonitorRegistrierungStatus> {
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const response = await this.http.get('/', {
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maxRedirects: 5,
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validateStatus: status => status >= 200 && status < 500,
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});
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await this.saveSession();
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const pageContent = typeof response.data === 'string' ? response.data : '';
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const hasRegistrationText = pageContent.includes('Neues Gerät registrieren');
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return {
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registriert: !hasRegistrationText,
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status: response.status,
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hasRegistrationText,
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timestamp: new Date().toISOString(),
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cookies: await this.getCookieCount(),
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};
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}
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async registerDevice(
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registration: AgrarmonitorDeviceRegistrationOptions
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): Promise<AgrarmonitorDeviceRegistrationResult> {
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const agrarmonitorId = registration.agrarmonitorId.trim();
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const pcName = registration.pcName.trim();
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if (!agrarmonitorId || !pcName) {
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throw new Error('AgrarmonitorID und PC-Name sind erforderlich');
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}
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const freischaltungResponse = await this.http.get('/freischaltung/');
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const responseContent = typeof freischaltungResponse.data === 'string' ? freischaltungResponse.data : '';
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const nonce = this.extractNonce(responseContent, '#nonce, input[name="nonce"]');
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const registerResponse = await this.http.post(
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'/freischaltung/api/register.php',
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{
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firma: agrarmonitorId,
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name: pcName,
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nonce,
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},
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{
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headers: {
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'Content-Type': 'application/json',
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},
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validateStatus: status => status >= 200 && status < 500,
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}
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);
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await this.saveSession();
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const success = registerResponse.status >= 200 && registerResponse.status < 300;
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return {
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success,
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status: registerResponse.status,
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message: success ? 'Registrierung erfolgreich' : 'Registrierung fehlgeschlagen',
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data: {
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agrarmonitorId,
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pcName,
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nonce: this.maskNonce(nonce),
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},
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timestamp: new Date().toISOString(),
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cookies: await this.getCookieCount(),
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};
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}
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async fetchCustomers(options: AgrarmonitorFetchCustomersOptions = {}): Promise<AgrarmonitorApiCustomer[]> {
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const apiToken = options.apiToken ?? this.options.apiToken;
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if (!apiToken) {
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throw new Error('Agrarmonitor API-Token nicht konfiguriert');
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}
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const response = await this.http.get(`${this.apiBaseUrl}/v1/kunden`, {
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params: {
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per_page: options.perPage ?? 99999,
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api_token: apiToken,
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},
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});
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await this.saveSession();
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const responseData = response.data as { data?: unknown };
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if (!responseData || !Array.isArray(responseData.data)) {
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throw new Error('Ungueltige Agrarmonitor API-Antwort');
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}
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return responseData.data as AgrarmonitorApiCustomer[];
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}
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private createHttpClient(): AxiosInstance {
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const client = wrapper(
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axios.create({
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baseURL: this.baseUrl,
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jar: this.cookieJar,
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withCredentials: true,
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timeout: this.timeoutMs,
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headers: {
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'User-Agent':
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'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36',
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},
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maxRedirects: 5,
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validateStatus: status => status >= 200 && status < 400,
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})
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);
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client.interceptors.response.use(
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async response => {
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await this.options.cookieStore.save(this.cookieJar);
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if (this.autoRetry && this.isLoginRequiredResponse(response)) {
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return this.retryAfterLogin(response.config);
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}
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return response;
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},
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async error => {
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const response = error.response as AxiosResponse | undefined;
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if (this.autoRetry && response && this.isLoginRequiredResponse(response)) {
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return this.retryAfterLogin(error.config);
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}
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throw error;
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}
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);
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return client;
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}
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private async performLogin(): Promise<void> {
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if (!this.options.username || !this.options.password) {
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throw new Error('Agrarmonitor-Credentials nicht konfiguriert');
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}
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this.logger?.info?.('Fuehre Agrarmonitor-Login durch');
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if (this.loginStrategy === 'auth') {
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await this.performAuthLogin();
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} else if (this.loginStrategy === 'legacy') {
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await this.performLegacyLogin();
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} else {
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await this.performAutoLogin();
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}
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await this.options.cookieStore.save(this.cookieJar);
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this.logger?.info?.('Agrarmonitor-Login erfolgreich');
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}
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private async performAutoLogin(): Promise<void> {
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try {
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await this.performAuthLogin();
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} catch (authError) {
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this.logger?.warn?.('Agrarmonitor-Login via /auth/login fehlgeschlagen, versuche Legacy-Login', authError);
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await this.performLegacyLogin();
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}
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}
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private async performAuthLogin(): Promise<void> {
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await this.http.get('/auth/login');
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const loginData = new URLSearchParams({
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email: this.options.username,
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password: this.options.password,
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remember: 'on',
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});
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const response = await this.http.post('/auth/login', loginData, {
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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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const responseText = typeof response.data === 'string' ? response.data : '';
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if (responseText.includes('Anmeldung fehlgeschlagen')) {
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throw new Error('Agrarmonitor-Login fehlgeschlagen');
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}
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}
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private async performLegacyLogin(): Promise<void> {
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const loginPageResponse = await this.http.get('/');
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const loginPageText = typeof loginPageResponse.data === 'string' ? loginPageResponse.data : '';
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if (!this.isLoginPageText(loginPageText)) {
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return;
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}
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const nonce = this.extractNonce(loginPageText, 'input[name="nonce"]');
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const loginData = new URLSearchParams({
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username: this.options.username,
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passwort: this.options.password,
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nonce,
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});
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const response = await this.http.post('/redirect.php?id=benutzerverwaltung&action=login', loginData, {
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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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const responseText = typeof response.data === 'string' ? response.data : '';
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if (this.isLoginPageText(responseText)) {
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throw new Error('Agrarmonitor-Legacy-Login fehlgeschlagen');
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}
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}
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private async isSessionValid(): Promise<boolean> {
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try {
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const response = await this.http.get('/');
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return !this.isLoginRequiredResponse(response);
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} catch {
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return false;
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}
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}
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private isLoginRequiredResponse(response: AxiosResponse): boolean {
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const responseUrl = this.getResponseUrl(response);
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const responseText = typeof response.data === 'string' ? response.data : '';
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return (
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response.status === 401 ||
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response.status === 403 ||
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responseUrl.includes('/auth/login') ||
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responseText.includes('/auth/login') ||
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this.isLoginPageText(responseText) ||
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responseText.includes('Anmeldung') ||
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responseText.includes('Einloggen')
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);
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}
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private async retryAfterLogin(config: RetryableAxiosRequestConfig): Promise<AxiosResponse> {
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if (config._agrarmonitorRetry) {
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throw new Error('Agrarmonitor-Request nach erneutem Login weiterhin nicht autorisiert');
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}
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config._agrarmonitorRetry = true;
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this.logger?.info?.('Agrarmonitor-Session abgelaufen, erneuter Login wird ausgefuehrt');
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await this.login();
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return this.http.request(config);
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}
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private getResponseUrl(response: AxiosResponse): string {
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const request = response.request as { res?: { responseUrl?: string } } | undefined;
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return request?.res?.responseUrl ?? '';
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}
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private getHeader(response: AxiosResponse, header: string): string | null {
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const value = response.headers[header.toLowerCase()];
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if (Array.isArray(value)) {
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return value[0] ?? null;
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}
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return typeof value === 'string' ? value : null;
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}
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private isFreischaltungUrl(value: string | null): boolean {
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return Boolean(value?.includes('freischaltung'));
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}
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private isLoginPageText(responseText: string): boolean {
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return responseText.includes('Anmeldung - AGRARMONITOR');
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}
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private extractNonce(html: string, selector: string): string {
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const dom = new JSDOM(html);
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const element = dom.window.document.querySelector<HTMLInputElement>(selector);
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const nonce = element?.getAttribute('value') ?? element?.value ?? '';
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if (!nonce) {
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throw new Error('Nonce-Element nicht gefunden oder leer');
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}
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return nonce;
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}
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private maskNonce(nonce: string): string {
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return nonce.length <= 10 ? nonce : `${nonce.slice(0, 10)}...`;
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}
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}
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