Umstellung auf firebase
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29
bizmatch-server/src/jwt-auth/optional-auth.guard.ts
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29
bizmatch-server/src/jwt-auth/optional-auth.guard.ts
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import { CanActivate, ExecutionContext, Injectable } from '@nestjs/common';
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import admin from './firebase-admin';
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@Injectable()
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export class OptionalAuthGuard implements CanActivate {
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async canActivate(context: ExecutionContext): Promise<boolean> {
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const request = context.switchToHttp().getRequest<Request>();
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const token = this.extractTokenFromHeader(request);
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if (!token) {
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return true; // Kein Token vorhanden, aber Zugriff erlaubt
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}
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try {
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const decodedToken = await admin.auth().verifyIdToken(token);
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request['user'] = decodedToken; // Benutzerdaten zum Request hinzufügen, wenn Token gültig
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} catch (error) {
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// Bei ungültigem Token wird kein Fehler geworfen, sondern einfach kein User gesetzt
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request['user'] = null;
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}
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return true; // Zugriff wird immer erlaubt
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}
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private extractTokenFromHeader(request: Request): string | undefined {
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const [type, token] = request.headers['authorization']?.split(' ') ?? [];
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return type === 'Bearer' ? token : undefined;
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}
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}
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