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customTransformer.js
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/*
* @Author: Dorad, [email protected]
* @Date: 2023-04-18 22:07:58 +02:00
* @LastEditors: Dorad, [email protected]
* @LastEditTime: 2023-04-19 18:59:22 +02:00
* @FilePath: \src\customTransformer.js
* @Description:
*
* Copyright (c) 2023 by Dorad ([email protected]), All Rights Reserved.
*/
const axios = require('axios');
const cheerio = require('cheerio');
function capitalizeFirstLetter(str) {
return str.charAt(0).toUpperCase() + str.slice(1);
}
function getUrlFromFileOrExternalBlock(block, embed_type = "audio") {
type = capitalizeFirstLetter(embed_type.toLowerCase());
if (!block) {
console.error(`${type} block is null: `, block);
return false;
}
if (block.type === "file" && block.file?.url) {
console.warn(`${type} block with file type: ${block.type}, it's a temporary link which will expire soon.`);
return block.file?.url;
} else if (block.type === "external" && block.external.url) {
return block.external?.url;
} else {
console.error(`${type} block with unsupported type: `, block.type);
return false;
}
}
var CAPTION_DIV_TEMPLATE = `<div style="text-align: center; margin:0;"><p>{{caption}}</p></div>`;
/**
* to parse the link preview block
* @param {*} block
* @returns
*/
async function link_preview(block) {
const { link_preview } = block;
if (!link_preview) return false;
if (!link_preview.url) {
console.error("Link preview block without url: ", block);
return false;
}
const url = link_preview.url;
// fetch the link preview
try {
switch (new URL(url).hostname) {
case "github.com":
return await _link_preview_github(url);
default:
console.error("Link preview block with unsupported domain: ", block);
return false;
}
} catch (err) {
// check if it's the error from axios
if (axios.isAxiosError(err)) {
console.error(`Failed to query from ${err.config.url}, status: ${err.response.status}, msg: ${err.response.data}`);
} else {
// err.response.data
console.error("Error parsing link preview block: ", block, err);
}
return false;
}
}
/**
*
* @param {string} url
* @returns
*/
async function _link_preview_github(url) {
/**
* url example:
* https://github.com/Doradx, home page
* https://github.com/Doradx/CNKI-PDF-RIS-Helper, repo page
* https://github.com/Doradx/CNKI-PDF-RIS-Helper/issues, issues list page
* https://github.com/Doradx/CNKI-PDF-RIS-Helper/issues/2, issue page
* https://github.com/Doradx/CNKI-PDF-RIS-Helper/pulls, pull requests list page
* https://github.com/dpy1123/GithubRemark/pull/4, pull request page
*/
const path = new URL(url).pathname.split("/").filter((x) => x);
const HTML_TEMPLATE = `<div style="margin:5px 1px;"> <a href="{{url}}" target="_blank" rel="noopener noreferrer" style="display:flex;color:inherit;background:#f5f5f5;text-decoration:none;user-select:none;transition:background 20ms ease-in 0s;cursor:pointer;flex-grow:1;min-width:0;align-items:center;border:1px solid rgba(55,53,47,.16);border-radius:5px;padding:6px;fill:inherit"><div style="display:flex;align-self:start;height:32px;width:32px;margin:3px 12px 3px 4px;position:relative"><div><div style="width:100%;height:100%"><img src="{{avatar}}" referrerpolicy="same-origin" style="display:block;object-fit:cover;border-radius:34px;width:30.192px;height:30.192px;transition:opacity .1s ease-out 0s;box-shadow:rgba(15,15,15,.1) 0 2px 4px"></div></div><div style="position:absolute;bottom:-2px;right:-2px"><div style="width:100%;height:100%"><svg xmlns="http://www.w3.org/2000/svg" viewbox="0 0 496 512" style="display:block;object-fit:cover;border-radius:5px;width:14.208px;height:14.208px;transition:opacity .1s ease-out 0s;filter:drop-shadow(white 0 0 1px) drop-shadow(white 0 0 1px) drop-shadow(white 0 0 1px)"><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"></path></svg></div></div></div><div style="display:flex;flex-direction:column;justify-content:center;flex-grow:1;flex-shrink:1;overflow:hidden"><div style="display:flex;align-items:baseline;font-size:14px"><div spellcheck="false" style="white-space:nowrap;color:#37352f;font-weight:500;overflow:hidden;text-overflow:ellipsis">{{title}}</div></div><div style="display:flex;align-items:center;color:rgba(55,53,47,.65);font-size:12px"><div spellcheck="false" style="white-space:nowrap;color:rgba(55,53,47,.65)">{{owner}}</div><span style="margin-left:3px;margin-right:3px">•</span><div style="color:rgba(55,53,47,.65);font-size:12px;white-space:nowrap">{{remark}}</div></div></div><div role="button" tabindex="0" style="user-select:none;transition:background 20ms ease-in 0s;cursor:pointer;opacity:0;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:5px;flex-shrink:0;margin-right:4px;color:rgba(55,53,47,.65)"><svg viewbox="0 0 13 3" class="dots" style="width:14px;height:100%;display:block;fill:inherit;flex-shrink:0;backface-visibility:hidden;color:rgba(55,53,47,.45)"><g><path d="M3,1.5A1.5,1.5,0,1,1,1.5,0,1.5,1.5,0,0,1,3,1.5Z"></path><path d="M8,1.5A1.5,1.5,0,1,1,6.5,0,1.5,1.5,0,0,1,8,1.5Z"></path><path d="M13,1.5A1.5,1.5,0,1,1,11.5,0,1.5,1.5,0,0,1,13,1.5Z"></path></g></svg></div></a></div>`;
var data = {
title: "",
owner: "",
remark: "",
avatar: "",
state_icon: "",
url: url
}
if (path.length < 2) {
console.error("Link preview block with unsupported url: ", url);
return false;
} else if (path.length == 2) {
// home page
const info = await axios.get(`https://api.github.com/repos/${path[0]}/${path[1]}`).then((res) => res.data);
data.title = info.full_name;
data.avatar = info.owner.avatar_url;
data.owner = info.owner.login;
data.remark = "Created: " + info.created_at;
} else if (path.length == 3) {
// pulls/issues/actions, pull home page info and add "pulls" or "issues"
const info = await axios.get(`https://api.github.com/repos/${path[0]}/${path[1]}`).then((res) => res.data);
data.title = info.full_name + " " + capitalizeFirstLetter(path[2]);
data.avatar = info.owner.avatar_url;
data.owner = info.owner.login;
data.remark = "Created: " + info.created_at;
} else if (path.length == 4) {
// pull/issue
let req_url = "";
if (path[2] == "issues") {
// issue detail
req_url = `https://api.github.com/repos/${path[0]}/${path[1]}/issues/${path[3]}`;
} else if (path[2] == "pull") {
req_url = `https://api.github.com/repos/${path[0]}/${path[1]}/pulls/${path[3]}`
} else {
console.error("Link preview block with unsupported url: ", url);
}
if (!req_url) return false;
const info = await axios.get(req_url).then((res) => res.data);
// add icon, state according to issue/pull state
var STATE_SVG = {
pull: {
opened: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M1.5 3.25a2.25 2.25 0 1 1 3 2.122v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.25 2.25 0 0 1 1.5 3.25Zm5.677-.177L9.573.677A.25.25 0 0 1 10 .854V2.5h1A2.5 2.5 0 0 1 13.5 5v5.628a2.251 2.251 0 1 1-1.5 0V5a1 1 0 0 0-1-1h-1v1.646a.25.25 0 0 1-.427.177L7.177 3.427a.25.25 0 0 1 0-.354ZM3.75 2.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm0 9.5a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm8.25.75a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0Z"></path></svg>`,
merged: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M5.45 5.154A4.25 4.25 0 0 0 9.25 7.5h1.378a2.251 2.251 0 1 1 0 1.5H9.25A5.734 5.734 0 0 1 5 7.123v3.505a2.25 2.25 0 1 1-1.5 0V5.372a2.25 2.25 0 1 1 1.95-.218ZM4.25 13.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Zm8.5-4.5a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5ZM5 3.25a.75.75 0 1 0 0 .005V3.25Z"></path></svg>`,
colsed: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M3.25 1A2.25 2.25 0 0 1 4 5.372v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.251 2.251 0 0 1 3.25 1Zm9.5 5.5a.75.75 0 0 1 .75.75v3.378a2.251 2.251 0 1 1-1.5 0V7.25a.75.75 0 0 1 .75-.75Zm-2.03-5.273a.75.75 0 0 1 1.06 0l.97.97.97-.97a.748.748 0 0 1 1.265.332.75.75 0 0 1-.205.729l-.97.97.97.97a.751.751 0 0 1-.018 1.042.751.751 0 0 1-1.042.018l-.97-.97-.97.97a.749.749 0 0 1-1.275-.326.749.749 0 0 1 .215-.734l.97-.97-.97-.97a.75.75 0 0 1 0-1.06ZM2.5 3.25a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0ZM3.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm9.5 0a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Z"></path></svg>`,
draft: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M3.25 1A2.25 2.25 0 0 1 4 5.372v5.256a2.251 2.251 0 1 1-1.5 0V5.372A2.251 2.251 0 0 1 3.25 1Zm9.5 14a2.25 2.25 0 1 1 0-4.5 2.25 2.25 0 0 1 0 4.5ZM2.5 3.25a.75.75 0 1 0 1.5 0 .75.75 0 0 0-1.5 0ZM3.25 12a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5Zm9.5 0a.75.75 0 1 0 0 1.5.75.75 0 0 0 0-1.5ZM14 7.5a1.25 1.25 0 1 1-2.5 0 1.25 1.25 0 0 1 2.5 0Zm0-4.25a1.25 1.25 0 1 1-2.5 0 1.25 1.25 0 0 1 2.5 0Z"></path></svg>`
},
issue: {
opened: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z"></path><path d="M8 0a8 8 0 1 1 0 16A8 8 0 0 1 8 0ZM1.5 8a6.5 6.5 0 1 0 13 0 6.5 6.5 0 0 0-13 0Z"></path></svg>`,
closed: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M11.28 6.78a.75.75 0 0 0-1.06-1.06L7.25 8.69 5.78 7.22a.75.75 0 0 0-1.06 1.06l2 2a.75.75 0 0 0 1.06 0l3.5-3.5Z"></path><path d="M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0Zm-1.5 0a6.5 6.5 0 1 0-13 0 6.5 6.5 0 0 0 13 0Z"></path></svg>`,
draft: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M14.307 11.655a.75.75 0 0 1 .165 1.048 8.05 8.05 0 0 1-1.769 1.77.75.75 0 0 1-.883-1.214 6.552 6.552 0 0 0 1.44-1.439.75.75 0 0 1 1.047-.165Zm-2.652-9.962a.75.75 0 0 1 1.048-.165 8.05 8.05 0 0 1 1.77 1.769.75.75 0 0 1-1.214.883 6.552 6.552 0 0 0-1.439-1.44.75.75 0 0 1-.165-1.047ZM6.749.097a8.074 8.074 0 0 1 2.502 0 .75.75 0 1 1-.233 1.482 6.558 6.558 0 0 0-2.036 0A.751.751 0 0 1 6.749.097ZM.955 6.125a.75.75 0 0 1 .624.857 6.558 6.558 0 0 0 0 2.036.75.75 0 1 1-1.482.233 8.074 8.074 0 0 1 0-2.502.75.75 0 0 1 .858-.624Zm14.09 0a.75.75 0 0 1 .858.624c.13.829.13 1.673 0 2.502a.75.75 0 1 1-1.482-.233 6.558 6.558 0 0 0 0-2.036.75.75 0 0 1 .624-.857Zm-8.92 8.92a.75.75 0 0 1 .857-.624 6.558 6.558 0 0 0 2.036 0 .75.75 0 1 1 .233 1.482c-.829.13-1.673.13-2.502 0a.75.75 0 0 1-.624-.858Zm-4.432-3.39a.75.75 0 0 1 1.048.165 6.552 6.552 0 0 0 1.439 1.44.751.751 0 0 1-.883 1.212 8.05 8.05 0 0 1-1.77-1.769.75.75 0 0 1 .166-1.048Zm2.652-9.962A.75.75 0 0 1 4.18 2.74a6.556 6.556 0 0 0-1.44 1.44.751.751 0 0 1-1.212-.883 8.05 8.05 0 0 1 1.769-1.77.75.75 0 0 1 1.048.166Z"></path></svg>`, // 草稿
reopened: `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" width="12.5" height="12.5"><path d="M5.029 2.217a6.5 6.5 0 0 1 9.437 5.11.75.75 0 1 0 1.492-.154 8 8 0 0 0-14.315-4.03L.427 1.927A.25.25 0 0 0 0 2.104V5.75A.25.25 0 0 0 .25 6h3.646a.25.25 0 0 0 .177-.427L2.715 4.215a6.491 6.491 0 0 1 2.314-1.998ZM1.262 8.169a.75.75 0 0 0-1.22.658 8.001 8.001 0 0 0 14.315 4.03l1.216 1.216a.25.25 0 0 0 .427-.177V10.25a.25.25 0 0 0-.25-.25h-3.646a.25.25 0 0 0-.177.427l1.358 1.358a6.501 6.501 0 0 1-11.751-3.11.75.75 0 0 0-.272-.506Z"></path><path d="M9.06 9.06a1.5 1.5 0 1 1-2.12-2.12 1.5 1.5 0 0 1 2.12 2.12Z"></path></svg>`, // 重新打开
}
};
if (path[2] === "pull") {
if (info.draft) data.state_icon = STATE_SVG.pull.draft;
else if (info.state === "open") data.state_icon = STATE_SVG.pull.opened;
else if (info.state === "merged") data.state_icon = STATE_SVG.pull.merged;
else if (info.state === "closed") data.state_icon = STATE_SVG.pull.closed;
} else {
if (info.draft) data.state_icon = STATE_SVG.issue.draft;
else if (info.state_reason === "reopened") data.state_icon = STATE_SVG.issue.reopened;
else if (info.state === "open") data.state_icon = STATE_SVG.issue.opened;
else if (info.state === "closed") data.state_icon = STATE_SVG.issue.closed;
}
if (data.state_icon) data.state_icon = `${data.state_icon} #${info.number}<span style="margin-left:3px;margin-right:3px">•</span>`;
// type: path[2], state: from info.state
data.title = info.title + " " + (data.state_icon ? data.state_icon : "") + capitalizeFirstLetter(info.state); // 图标, 状态
data.avatar = info.user.avatar_url;
data.owner = data.state_icon ? data.state_icon + info.user.login : info.user.login;
// 添加图标, ID, username
data.remark = "Created: " + info.created_at;
} else {
console.error("Link preview block with unsupported url: ", url);
return false;
}
return HTML_TEMPLATE.replace(/\{\{(.*?)\}\}/g, (match, key) => data[key]);
}
async function bookmark(block) {
const { bookmark, author } = block;
if (!bookmark?.url) return "";
const caption = bookmark.caption && bookmark.caption.length ? bookmark.caption[0].plain_text : "";
const p = await axios.get(encodeURI(bookmark.url)).then((res) => {
const $ = cheerio.load(res.data, {
ignoreWhitespace: true,
lowerCaseAttributeNames: true,
lowerCaseTags: true,
});
// get title, description, cover, favicon from meta tags, key case is not considered
const metaTags = $('head').find('meta');
var metas = {};
metaTags.each((i, e) => {
var name = $(e).attr('name') || $(e).attr('property');
if (name) metas[name.toLowerCase()] = $(e).attr('content');
});
const title = metas['og:title'] || metas['twitter:title'] || $('title').text();
const description = metas['og:description'] || metas['twitter:description'] || metas['description'] || "";
const cover = metas['og:image'] || metas['twitter:image'] || metas['image'] || "";
var favicon = $('link[rel="shortcut icon"]').attr('href') || $('link[rel="icon"]').attr('href') || "";
if (favicon.startsWith("//")) favicon = "https:" + favicon;
if (favicon.startsWith("/")) favicon = "https://" + new URL(bookmark.url).hostname + favicon;
return {
title: title,
description: description,
cover: cover,
favicon: favicon,
url: bookmark.url,
}
})
.catch((err) => {
console.warn('Bookmark preview fetch error: ', err?.response?.status, err?.response?.statusText);
return {
// title is the domain name
title: new URL(bookmark.url).hostname,
description: "",
cover: "",
favicon: "",
url: bookmark.url,
}
});
var cover_div = p.cover ? `<div style="flex: 1 1 180px; display: block; position: relative;"><div style="position: absolute; inset: 0px;"><div style="width: 100%; height: 100%;"><img src="${p.cover}" referrerpolicy="no-referrer" style="display: block; object-fit: cover; border-radius: 3px; width: 100%; height: 100%;"></div></div></div>` : "";
var body_div = `<div style="display: flex; background:white;border-radius:5px"><a href="${p.url}"target="_blank"rel="noopener noreferrer"style="display: flex; color: inherit; text-decoration: none; user-select: none; transition: background 20ms ease-in 0s; cursor: pointer; flex-grow: 1; min-width: 0px; flex-wrap: wrap-reverse; align-items: stretch; text-align: left; overflow: hidden; border: 1px solid rgba(55, 53, 47, 0.16); border-radius: 5px; position: relative; fill: inherit;"><div style="flex: 4 1 180px; padding: 12px 14px 14px; overflow: hidden; text-align: left;"><div style="font-size: 14px; line-height: 20px; color: rgb(55, 53, 47); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-height: 24px; margin-bottom: 2px;">${p.title}</div><div style="font-size: 12px; line-height: 16px; color: rgba(55, 53, 47, 0.65); height: 32px; overflow: hidden;">${p.description}</div><div style="display: flex; margin-top: 6px; height: 16px;"><img src="${p.favicon}"style="width: 16px; height: 16px; min-width: 16px; margin-right: 6px;"><div style="font-size: 12px; line-height: 16px; color: rgb(55, 53, 47); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;">${p.url}</div></div></div>${cover_div}</a></div>`
var caption_div = caption ? CAPTION_DIV_TEMPLATE.replace("{{caption}}", caption) : "";
return `<div style="width: 100%; margin-top: 4px; margin-bottom: 4px;">${body_div}${caption_div}</div>`;
}
/**
* to parse a pdf block
* @param {*} block
* @returns
*/
async function pdf(block) {
const { pdf } = block || {};
if (!pdf) return false;
const url = getUrlFromFileOrExternalBlock(pdf, 'pdf');
if (!url) return false;
var caption = pdf.caption && pdf.caption.length > 0 ? pdf.caption[0].plain_text : "";
var iframe = `<iframe src="${url}" style="width: 100%; margin:0; aspect-ratio: 16/9;"></iframe>`;
const caption_div = caption ? CAPTION_DIV_TEMPLATE.replace("{{caption}}", caption) : "";
return `<div class="pdf">${iframe}${caption_div}</div>`;
}
async function audio(block) {
const { audio } = block;
if (!audio) return false;
const url = getUrlFromFileOrExternalBlock(audio, 'audio');
if (!url) return false;
const caption = audio.caption && audio.caption.length ? audio.caption[0].plain_text : "";
var audio_div = `<audio controls style="width: 100%; height: 54px;margin:0;"><source src="${url}" type="audio/mpeg"></audio>`;
var caption_div = caption ? CAPTION_DIV_TEMPLATE.replace("{{caption}}", caption) : "";
return `<div style="width: 100%; margin: 0 0 2px;">${audio_div}${caption_div}</div>`
}
async function video(block) {
const { video } = block;
const url = getUrlFromFileOrExternalBlock(video, 'video');
if (!url) return false;
var caption = video.caption && video.caption.length > 0 ? video.caption[0].plain_text : "";
// fetch the iframe url
const domain = new URL(url).hostname;
var vid = false;
var video_url = "";
try {
switch (domain) {
case "youtu.be":
vid = new URL(url).pathname.split("/")[1] || false;
case "m.youtube.com":
case "www.youtube.com":
if (!vid) vid = new URL(url).searchParams.get("v") || false;
if (vid) video_url = `https://www.youtube.com/embed/${vid}`;
break;
case "www.bilibili.com":
vid = new URL(url).pathname.split("/")[2] || false;
video_url = `//player.bilibili.com/player.html?bvid=${vid}&page=1&autoplay=0`;
break;
case "v.qq.com":
vid = new URL(url).pathname.split("/")[2] || false;
video_url = `https://v.qq.com/txp/iframe/player.html?vid=${vid}`;
break;
default:
console.warn("Video block with unsupported domain: ", domain);
video_url = url;
}
}
catch (err) {
console.error("Error parsing video block: ", block);
return false;
}
const video_div = `<iframe src="${video_url}" scrolling="no" border="0" frameborder="no" framespacing="0" allowfullscreen="true" style="width: 100%; margin:0; aspect-ratio: 16/9;"> </iframe>`;
var caption_div = caption ? CAPTION_DIV_TEMPLATE.replace("{{caption}}", caption) : "";
return `<div style="width: 100%; margin-top: 4px; margin-bottom: 4px;">${video_div}${caption_div}</div>`
}
async function embed(block) {
const { embed } = block;
if (!embed) return false;
if (!embed.url) {
console.error("Embed block without url: ", block);
return false;
}
const caption = embed.caption && embed.caption.length ? embed.caption[0].plain_text : "";
const url = embed.url;
var iframe = false;
try {
switch (new URL(url).hostname) {
case "twitter.com":
try {
// get twitter username and status id using regex from status url like: https://twitter.com/engineers_feed/status/1648224909628428288
const { username, status_id } = url.match(/twitter\.com\/(?<username>\w+)\/status\/(?<status_id>\d+)/).groups;
// query twitter embed code from twitter
const data = await axios.get(`https://publish.twitter.com/oembed?url=https://twitter.com/${username}/status/${status_id}`).then((resp) => resp.data);
iframe = data.html;
} catch (err) {
console.error(`Error fetching twitter embed code: ${err}, url: ${url}`);
return false;
}
break;
case "www.google.com":
// check if the url is embed
if (!url.includes("embed")) {
console.error("Embed block with unsupported google url: ", url);
return false;
}
iframe = `<iframe src="${url}" style="width: 100%; margin:0; aspect-ratio: 16/9;" allowfullscreen="" loading="lazy" referrerpolicy="no-referrer-when-downgrade"></iframe>`;
break;
default:
console.warn("Embed block with unsupported domain, url: ", url);
iframe = `<iframe src="${url}" style="width: 100%; margin:0; aspect-ratio: 16/9;" allowfullscreen="" loading="lazy" referrerpolicy="no-referrer-when-downgrade"></iframe>`
}
} catch (err) {
console.error("Error parsing embed block: ", block, err);
return false;
}
if (!iframe) {
console.error("Embed block without iframe: ", block, err);
return false;
}
var caption_div = caption ? CAPTION_DIV_TEMPLATE.replace("{{caption}}", caption) : "";
return `<div style="width: 100%; margin: 0 0 2px;">${iframe}${caption_div}</div>`
}
async function image(block) {
let blockContent = block.image;
let image_title = "";
const image_caption_plain = blockContent.caption
.map((item) => item.plain_text)
.join("");
const image_type = blockContent.type;
let link = "";
if (image_type === "external") {
link = blockContent.external.url;
}
if (image_type === "file") {
link = blockContent.file.url;
}
// image caption with high priority
if (image_caption_plain.trim().length > 0) {
image_title = image_caption_plain;
}
return ``;
}
module.exports = {
bookmark,
link_preview,
video,
audio,
embed,
pdf,
image
}