WebhookController.java

/*
 * BSD 2-Clause License
 * 
 * Copyright (c) 2022, [Aleksandra Serba, Marcin Czerniak, Bartosz Wawrzyniak, Adrian Antkowiak]
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package dev.vernite.vernite.integration;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;

import dev.vernite.vernite.integration.calendar.CalendarSyncService;
import dev.vernite.vernite.integration.git.github.GitHubWebhookService;
import dev.vernite.vernite.integration.git.github.data.GitHubWebhookData;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.server.ResponseStatusException;

import io.swagger.v3.oas.annotations.Hidden;
import reactor.core.publisher.Mono;

/**
 * Controller for webhooks from integrated services.
 */
@Hidden
@RestController
@RequestMapping("/webhook")
public class WebhookController {
    private static final ObjectMapper MAPPER = new ObjectMapper()
            .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
    @Autowired
    private GitHubWebhookService gitHubService;
    @Autowired
    private CalendarSyncService calendarSyncService;

    @PostMapping("/github")
    Mono<Void> github(@RequestHeader("X-Hub-Signature-256") String token, @RequestHeader("X-GitHub-Event") String event,
            @RequestBody String dataRaw) {
        if (!gitHubService.isAuthorized(token, dataRaw)) {
            throw new ResponseStatusException(HttpStatus.UNAUTHORIZED);
        }
        GitHubWebhookData data;
        try {
            data = MAPPER.readValue(dataRaw, GitHubWebhookData.class);
        } catch (Exception e) {
            throw new ResponseStatusException(HttpStatus.BAD_REQUEST);
        }
        return gitHubService.handleWebhook(event, data);
    }

    @GetMapping(value = "/calendar", produces = "text/calendar")
    byte[] calendar(String key) {
        return calendarSyncService.handleCalendar(key);
    }
}