gocqhttp-twitter-bot/dist/webshot.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const fs_1 = require("fs");
const util_1 = require("util");
const axios_1 = require("axios");
const CallableInstance = require("callable-instance");
const html_entities_1 = require("html-entities");
const pngjs_1 = require("pngjs");
const puppeteer = require("playwright");
const sharp = require("sharp");
const temp = require("temp");
const loggers_1 = require("./loggers");
const koishi_1 = require("./koishi");
const utils_1 = require("./utils");
const twitter_1 = require("./twitter");
const xmlEntities = new html_entities_1.XmlEntities();
const ZHType = (type) => new class extends String {
    constructor() {
        super(...arguments);
        this.type = super.toString();
        this.toString = () => `[${super.toString()}]`;
    }
}(type);
const typeInZH = {
    photo: ZHType('图片'),
    video: ZHType('视频'),
};
const logger = loggers_1.getLogger('webshot');
class Webshot extends CallableInstance {
    constructor(wsUrl, mode, getCookies, onready) {
        super('webshot');
        this.connect = (onready) => axios_1.default.get(this.wsUrl)
            .then(res => {
            logger.info(`received websocket endpoint: ${JSON.stringify(res.data)}`);
            const browserType = Object.keys(res.data)[0];
            return puppeteer[browserType]
                .connect({ wsEndpoint: res.data[browserType] });
        })
            .then(browser => this.browser = browser)
            .then(() => {
            logger.info('launched puppeteer browser');
            if (onready)
                return onready();
        })
            .catch(error => this.reconnect(error, onready));
        this.reconnect = (error, onready) => {
            logger.error(`connection error, reason: ${error}`);
            logger.warn('trying to reconnect in 2.5s...');
            return util_1.promisify(setTimeout)(2500)
                .then(() => this.connect(onready));
        };
        this.renderWebshot = (url, height, webshotDelay) => {
            temp.track();
            const jpeg = (data) => data.pipe(sharp()).jpeg({ quality: 90, trellisQuantisation: true });
            const sharpToFile = (pic) => new Promise(resolve => {
                const webshotTempFilePath = temp.path({ suffix: '.jpg' });
                pic.toFile(webshotTempFilePath).then(() => resolve(`file://${webshotTempFilePath}`));
            });
            const promise = new Promise((resolve, reject) => {
                const width = 720;
                const zoomFactor = 2;
                logger.info(`shooting ${width}*${height} webshot for ${url}`);
                this.browser.newPage({
                    bypassCSP: true,
                    deviceScaleFactor: zoomFactor,
                    locale: 'ja-JP',
                    timezoneId: 'Asia/Tokyo',
                    userAgent: 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
                })
                    .then(page => {
                    const startTime = new Date().getTime();
                    const getTimerTime = () => new Date().getTime() - startTime;
                    const getTimeout = () => Math.max(500, webshotDelay - getTimerTime());
                    page.setViewportSize({
                        width: width / zoomFactor,
                        height: height / zoomFactor,
                    }).then(() => page.context().addCookies(this.getCookies()))
                        .then(() => page.goto(url, { waitUntil: 'load', timeout: getTimeout() }))
                        .then(() => ((next) => Promise.race([
                        page.click('button:has-text("すべて許可")').then(() => twitter_1.browserLogin(page))
                            .then(() => page.goto(url, { waitUntil: 'load', timeout: getTimeout() }))
                            .then(() => next),
                        page.click('button:has-text("すべて許可")').then(() => next),
                        next,
                    ]))(page.waitForSelector('article', { timeout: getTimeout() })))
                        .catch((err) => {
                        if (err.name !== 'TimeoutError')
                            throw err;
                        logger.warn(`navigation timed out at ${getTimerTime()} ms`);
                        return null;
                    })
                        .then(() => page.addStyleTag({ content: 'nav,footer,header+div,header+div+div>div>div+div,header div div div+div,' +
                            'article section,article section+div>ul>:not(div),article section+div~div,article button,canvas{display:none!important} ' +
                            'section+div{overflow:hidden} section+*>*{position:relative!important} article{border-bottom:1px solid!important}',
                    }))
                        .then(() => page.addStyleTag({
                        content: '*{font-family:-apple-system,".Helvetica Neue DeskInterface",Hiragino Sans,Hiragino Sans GB,sans-serif!important}',
                    }))
                        .then(() => page.screenshot())
                        .then(screenshot => {
                        new pngjs_1.PNG({
                            filterType: 4,
                            deflateLevel: 0,
                        }).on('parsed', function () {
                            const idx = (x, y) => (this.width * y + x) << 2;
                            let boundary = null;
                            for (let y = this.height - 1; y > this.height - 1920; y -= zoomFactor) {
                                if (this.data[idx(zoomFactor, y)] <= 38 &&
                                    this.data[idx(zoomFactor, y)] === this.data[idx(this.width - zoomFactor, y)] &&
                                    this.data[idx(zoomFactor, y + zoomFactor)] === this.data[idx(zoomFactor, y - 2 * zoomFactor)]) {
                                    boundary = y;
                                    break;
                                }
                            }
                            if (boundary !== null) {
                                logger.info(`found boundary at ${boundary}, cropping image`);
                                this.data = this.data.slice(0, idx(this.width, boundary));
                                this.height = boundary;
                                sharpToFile(jpeg(this.pack())).then(path => {
                                    logger.info(`finished webshot for ${url}`);
                                    resolve({ path, boundary });
                                });
                            }
                            else if (height >= 8 * 1920) {
                                logger.warn('too large, consider as a bug, returning');
                                sharpToFile(jpeg(this.pack())).then(path => {
                                    resolve({ path, boundary: 0 });
                                });
                            }
                            else {
                                logger.info('unable to find boundary, try shooting a larger image');
                                resolve({ path: '', boundary });
                            }
                        }).parse(screenshot);
                    })
                        .catch(err => {
                        if (err instanceof Error && err.name !== 'TimeoutError')
                            throw err;
                        logger.error(`error shooting webshot for ${url}, could not load web page of tweet`);
                        resolve({ path: '', boundary: 0 });
                    })
                        .finally(() => { page.close(); });
                })
                    .catch(reject);
            });
            return promise.then(data => {
                if (data.boundary === null)
                    return this.renderWebshot(url, height + 1920, webshotDelay);
                else
                    return data.path;
            }).catch(error => this.reconnect(error)
                .then(() => this.renderWebshot(url, height, webshotDelay)));
        };
        this.fetchMedia = (url) => new Promise((resolve, reject) => {
            logger.info(`fetching ${url}`);
            axios_1.default({
                method: 'get',
                url,
                responseType: 'arraybuffer',
                timeout: 150000,
            }).then(res => {
                if (res.status === 200) {
                    logger.info(`successfully fetched ${url}`);
                    resolve(res.data);
                }
                else {
                    logger.error(`failed to fetch ${url}: ${res.status}`);
                    reject();
                }
            }).catch(err => {
                logger.error(`failed to fetch ${url}: ${err instanceof Error ? err.message : err}`);
                reject();
            });
        }).then(data => (ext => {
            const mediaTempFilePath = temp.path({ suffix: `.${ext}` });
            fs_1.writeFileSync(mediaTempFilePath, Buffer.from(data));
            const path = `file://${mediaTempFilePath}`;
            switch (ext) {
                case 'jpg':
                case 'png':
                    return koishi_1.Message.Image(path);
                case 'mp4':
                    return koishi_1.Message.Video(path);
            }
            logger.warn('unable to find MIME type of fetched media, failing this fetch');
            throw Error();
        })(/\/.*\.(.+?)\?/.exec(url)[1]));
        if (this.mode = mode) {
            onready();
        }
        else {
            this.getCookies = getCookies;
            this.wsUrl = wsUrl;
            this.connect(onready);
        }
    }
    webshot(mediaItems, callback, webshotDelay) {
        let promise = new Promise(resolve => {
            resolve();
        });
        mediaItems.forEach(item => {
            promise = promise.then(() => {
                logger.info(`working on ${item.user.username}/${item.code}`);
            });
            let messageChain = '';
            const author = `${item.user.full_name} (@${item.user.username}):\n`;
            const text = item.caption.text;
            if (this.mode > 0)
                messageChain += (author + xmlEntities.decode(text));
            if (this.mode === 0) {
                const url = twitter_1.linkBuilder({ postUrlSegment: item.code });
                promise = promise.then(() => this.renderWebshot(url, 1920, webshotDelay))
                    .then(fileurl => {
                    if (fileurl)
                        return koishi_1.Message.Image(fileurl);
                    return author + text;
                })
                    .then(msg => {
                    if (msg)
                        messageChain += msg;
                });
            }
            const mediaType = item.video_versions ? 'video' : 'photo';
            const fetchBestCandidate = (candidates) => {
                const url = candidates
                    .sort((var1, var2) => var2.width - var1.width)
                    .map(variant => variant.url)[0];
                const altMessage = `\n[失败的${typeInZH[mediaType].type}：${url}]`;
                return this.fetchMedia(url)
                    .catch(error => {
                    logger.warn('unable to fetch media, sending plain text instead...');
                    return altMessage;
                })
                    .then(msg => { messageChain += msg; });
            };
            if (1 - this.mode % 2)
                promise = promise.then(() => {
                    if (item.carousel_media) {
                        return utils_1.chainPromises(item.carousel_media.map(carouselItem => fetchBestCandidate(carouselItem.image_versions2.candidates)));
                    }
                    else if (item.video_versions) {
                        return fetchBestCandidate(item.video_versions);
                    }
                    else if (item.image_versions2) {
                        return fetchBestCandidate(item.image_versions2.candidates);
                    }
                });
            promise.then(() => {
                logger.info(`done working on ${item.user.username}/${item.code}, message chain:`);
                logger.info(JSON.stringify(koishi_1.Message.ellipseBase64(messageChain)));
                callback(messageChain, xmlEntities.decode(text), author);
            });
        });
        return promise;
    }
}
exports.default = Webshot;