forked from mirrors/gecko-dev
888 lines
24 KiB
JavaScript
888 lines
24 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* globals process, require */
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this.shot = (function () {
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let exports = {}; // Note: in this library we can't use any "system" dependencies because this can be used from multiple
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// environments
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const isNode =
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typeof process !== "undefined" &&
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Object.prototype.toString.call(process) === "[object process]";
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const URL = (isNode && require("url").URL) || window.URL;
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/** Throws an error if the condition isn't true. Any extra arguments after the condition
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are used as console.error() arguments. */
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function assert(condition, ...args) {
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if (condition) {
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return;
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}
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console.error("Failed assertion", ...args);
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throw new Error(`Failed assertion: ${args.join(" ")}`);
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}
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/** True if `url` is a valid URL */
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function isUrl(url) {
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try {
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const parsed = new URL(url);
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if (parsed.protocol === "view-source:") {
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return isUrl(url.substr("view-source:".length));
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}
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return true;
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} catch (e) {
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return false;
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}
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}
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function isValidClipImageUrl(url) {
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return isUrl(url) && !(url.indexOf(")") > -1);
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}
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function assertUrl(url) {
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if (!url) {
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throw new Error("Empty value is not URL");
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}
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if (!isUrl(url)) {
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const exc = new Error("Not a URL");
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exc.scheme = url.split(":")[0];
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throw exc;
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}
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}
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function isSecureWebUri(url) {
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return isUrl(url) && url.toLowerCase().startsWith("https");
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}
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function assertOrigin(url) {
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assertUrl(url);
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if (url.search(/^https?:/i) !== -1) {
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let newUrl = new URL(url);
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if (newUrl.pathname != "/") {
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throw new Error("Bad origin, might include path");
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}
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}
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}
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function originFromUrl(url) {
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if (!url) {
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return null;
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}
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if (url.search(/^https?:/i) === -1) {
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// Non-HTTP URLs don't have an origin
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return null;
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}
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try {
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let tryUrl = new URL(url);
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return tryUrl.origin;
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} catch {
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return null;
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}
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}
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/** Check if the given object has all of the required attributes, and no extra
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attributes exception those in optional */
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function checkObject(obj, required, optional) {
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if (typeof obj !== "object" || obj === null) {
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throw new Error(
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"Cannot check non-object: " +
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typeof obj +
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" that is " +
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JSON.stringify(obj)
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);
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}
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required = required || [];
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for (const attr of required) {
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if (!(attr in obj)) {
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return false;
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}
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}
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optional = optional || [];
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for (const attr in obj) {
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if (!required.includes(attr) && !optional.includes(attr)) {
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return false;
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}
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}
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return true;
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}
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/** Create a JSON object from a normal object, given the required and optional
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attributes (filtering out any other attributes). Optional attributes are
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only kept when they are truthy. */
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function jsonify(obj, required, optional) {
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required = required || [];
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const result = {};
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for (const attr of required) {
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result[attr] = obj[attr];
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}
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optional = optional || [];
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for (const attr of optional) {
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if (obj[attr]) {
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result[attr] = obj[attr];
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}
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}
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return result;
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}
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/** True if the two objects look alike. Null, undefined, and absent properties
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are all treated as equivalent. Traverses objects and arrays */
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function deepEqual(a, b) {
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if ((a === null || a === undefined) && (b === null || b === undefined)) {
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return true;
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}
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if (typeof a !== "object" || typeof b !== "object") {
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return a === b;
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}
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if (Array.isArray(a)) {
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if (!Array.isArray(b)) {
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return false;
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}
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if (a.length !== b.length) {
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return false;
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}
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for (let i = 0; i < a.length; i++) {
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if (!deepEqual(a[i], b[i])) {
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return false;
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}
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}
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}
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if (Array.isArray(b)) {
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return false;
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}
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const seen = new Set();
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for (const attr of Object.keys(a)) {
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if (!deepEqual(a[attr], b[attr])) {
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return false;
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}
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seen.add(attr);
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}
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for (const attr of Object.keys(b)) {
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if (!seen.has(attr)) {
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if (!deepEqual(a[attr], b[attr])) {
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return false;
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}
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}
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}
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return true;
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}
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function makeRandomId() {
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// Note: this isn't for secure contexts, only for non-conflicting IDs
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let id = "";
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while (id.length < 12) {
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let num;
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if (!id) {
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num = Date.now() % Math.pow(36, 3);
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} else {
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num = Math.floor(Math.random() * Math.pow(36, 3));
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}
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id += num.toString(36);
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}
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return id;
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}
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class AbstractShot {
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constructor(backend, id, attrs) {
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attrs = attrs || {};
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assert(
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/^[a-zA-Z0-9]{1,4000}\/[a-z0-9._-]{1,4000}$/.test(id),
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"Bad ID (should be alphanumeric):",
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JSON.stringify(id)
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);
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this._backend = backend;
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this._id = id;
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this.origin = attrs.origin || null;
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this.fullUrl = attrs.fullUrl || null;
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if (!attrs.fullUrl && attrs.url) {
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console.warn("Received deprecated attribute .url");
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this.fullUrl = attrs.url;
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}
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if (this.origin && !isSecureWebUri(this.origin)) {
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this.origin = "";
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}
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if (this.fullUrl && !isSecureWebUri(this.fullUrl)) {
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this.fullUrl = "";
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}
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this.docTitle = attrs.docTitle || null;
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this.userTitle = attrs.userTitle || null;
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this.createdDate = attrs.createdDate || Date.now();
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this.siteName = attrs.siteName || null;
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this.images = [];
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if (attrs.images) {
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this.images = attrs.images.map(json => new this.Image(json));
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}
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this.openGraph = attrs.openGraph || null;
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this.twitterCard = attrs.twitterCard || null;
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this.documentSize = attrs.documentSize || null;
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this.thumbnail = attrs.thumbnail || null;
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this.abTests = attrs.abTests || null;
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this.firefoxChannel = attrs.firefoxChannel || null;
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this._clips = {};
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if (attrs.clips) {
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for (const clipId in attrs.clips) {
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const clip = attrs.clips[clipId];
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this._clips[clipId] = new this.Clip(this, clipId, clip);
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}
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}
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const isProd =
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typeof process !== "undefined" && process.env.NODE_ENV === "production";
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for (const attr in attrs) {
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if (
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attr !== "clips" &&
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attr !== "id" &&
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!this.REGULAR_ATTRS.includes(attr) &&
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!this.DEPRECATED_ATTRS.includes(attr)
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) {
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if (isProd) {
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console.warn("Unexpected attribute: " + attr);
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} else {
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throw new Error("Unexpected attribute: " + attr);
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}
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} else if (attr === "id") {
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console.warn("passing id in attrs in AbstractShot constructor");
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console.trace();
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assert(attrs.id === this.id);
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}
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}
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}
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/** Update any and all attributes in the json object, with deep updating
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of `json.clips` */
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update(json) {
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const ALL_ATTRS = ["clips"].concat(this.REGULAR_ATTRS);
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assert(
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checkObject(json, [], ALL_ATTRS),
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"Bad attr to new Shot():",
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Object.keys(json)
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);
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for (const attr in json) {
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if (attr === "clips") {
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continue;
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}
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if (
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typeof json[attr] === "object" &&
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typeof this[attr] === "object" &&
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this[attr] !== null
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) {
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let val = this[attr];
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if (val.toJSON) {
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val = val.toJSON();
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}
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if (!deepEqual(json[attr], val)) {
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this[attr] = json[attr];
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}
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} else if (json[attr] !== this[attr] && (json[attr] || this[attr])) {
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this[attr] = json[attr];
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}
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}
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if (json.clips) {
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for (const clipId in json.clips) {
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if (!json.clips[clipId]) {
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this.delClip(clipId);
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} else if (!this.getClip(clipId)) {
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this.setClip(clipId, json.clips[clipId]);
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} else if (
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!deepEqual(this.getClip(clipId).toJSON(), json.clips[clipId])
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) {
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this.setClip(clipId, json.clips[clipId]);
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}
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}
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}
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}
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/** Returns a JSON version of this shot */
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toJSON() {
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const result = {};
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for (const attr of this.REGULAR_ATTRS) {
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let val = this[attr];
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if (val && val.toJSON) {
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val = val.toJSON();
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}
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result[attr] = val;
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}
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result.clips = {};
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for (const attr in this._clips) {
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result.clips[attr] = this._clips[attr].toJSON();
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}
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return result;
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}
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/** A more minimal JSON representation for creating indexes of shots */
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asRecallJson() {
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const result = { clips: {} };
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for (const attr of this.RECALL_ATTRS) {
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let val = this[attr];
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if (val && val.toJSON) {
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val = val.toJSON();
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}
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result[attr] = val;
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}
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for (const name of this.clipNames()) {
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result.clips[name] = this.getClip(name).toJSON();
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}
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return result;
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}
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get backend() {
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return this._backend;
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}
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get id() {
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return this._id;
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}
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get url() {
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return this.fullUrl || this.origin;
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}
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set url(val) {
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throw new Error(".url is read-only");
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}
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get fullUrl() {
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return this._fullUrl;
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}
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set fullUrl(val) {
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if (val) {
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assertUrl(val);
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}
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this._fullUrl = val || undefined;
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}
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get origin() {
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return this._origin;
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}
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set origin(val) {
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if (val) {
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assertOrigin(val);
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}
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this._origin = val || undefined;
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}
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get isOwner() {
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return this._isOwner;
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}
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set isOwner(val) {
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this._isOwner = val || undefined;
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}
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get filename() {
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let filenameTitle = this.title;
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const date = new Date(this.createdDate);
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/* eslint-disable no-control-regex */
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filenameTitle = filenameTitle
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.replace(/[\\/]/g, "_")
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.replace(/[\u200e\u200f\u202a-\u202e]/g, "")
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.replace(/[\x00-\x1f\x7f-\x9f:*?|"<>;,+=\[\]]+/g, " ")
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.replace(/^[\s\u180e.]+|[\s\u180e.]+$/g, "");
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/* eslint-enable no-control-regex */
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filenameTitle = filenameTitle.replace(/\s{1,4000}/g, " ");
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const currentDateTime = new Date(
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date.getTime() - date.getTimezoneOffset() * 60 * 1000
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).toISOString();
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const filenameDate = currentDateTime.substring(0, 10);
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const filenameTime = currentDateTime.substring(11, 19).replace(/:/g, "-");
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let clipFilename = `Screenshot ${filenameDate} at ${filenameTime} ${filenameTitle}`;
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// Crop the filename size at less than 246 bytes, so as to leave
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// room for the extension and an ellipsis [...]. Note that JS
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// strings are UTF16 but the filename will be converted to UTF8
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// when saving which could take up more space, and we want a
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// maximum of 255 bytes (not characters). Here, we iterate
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// and crop at shorter and shorter points until we fit into
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// 255 bytes.
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let suffix = "";
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for (let cropSize = 246; cropSize >= 0; cropSize -= 32) {
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if (new Blob([clipFilename]).size > 246) {
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clipFilename = clipFilename.substring(0, cropSize);
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suffix = "[...]";
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} else {
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break;
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}
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}
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clipFilename += suffix;
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const clip = this.getClip(this.clipNames()[0]);
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let extension = ".png";
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if (clip && clip.image && clip.image.type) {
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if (clip.image.type === "jpeg") {
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extension = ".jpg";
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}
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}
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return clipFilename + extension;
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}
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get urlDisplay() {
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if (!this.url) {
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return null;
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}
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if (/^https?:\/\//i.test(this.url)) {
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let txt = this.url;
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txt = txt.replace(/^[a-z]{1,4000}:\/\//i, "");
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txt = txt.replace(/\/.{0,4000}/, "");
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txt = txt.replace(/^www\./i, "");
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return txt;
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} else if (this.url.startsWith("data:")) {
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return "data:url";
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}
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let txt = this.url;
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txt = txt.replace(/\?.{0,4000}/, "");
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return txt;
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}
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get viewUrl() {
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const url = this.backend + "/" + this.id;
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return url;
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}
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get creatingUrl() {
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let url = `${this.backend}/creating/${this.id}`;
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url += `?title=${encodeURIComponent(this.title || "")}`;
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url += `&url=${encodeURIComponent(this.url)}`;
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return url;
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}
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get jsonUrl() {
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return this.backend + "/data/" + this.id;
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}
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get oembedUrl() {
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return this.backend + "/oembed?url=" + encodeURIComponent(this.viewUrl);
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}
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get docTitle() {
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return this._title;
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}
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set docTitle(val) {
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assert(val === null || typeof val === "string", "Bad docTitle:", val);
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this._title = val;
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}
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get openGraph() {
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return this._openGraph || null;
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}
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set openGraph(val) {
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assert(val === null || typeof val === "object", "Bad openGraph:", val);
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if (val) {
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assert(
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checkObject(val, [], this._OPENGRAPH_PROPERTIES),
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"Bad attr to openGraph:",
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Object.keys(val)
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);
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this._openGraph = val;
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} else {
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this._openGraph = null;
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}
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}
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get twitterCard() {
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return this._twitterCard || null;
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}
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set twitterCard(val) {
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assert(val === null || typeof val === "object", "Bad twitterCard:", val);
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if (val) {
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assert(
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checkObject(val, [], this._TWITTERCARD_PROPERTIES),
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"Bad attr to twitterCard:",
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Object.keys(val)
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);
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this._twitterCard = val;
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} else {
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this._twitterCard = null;
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}
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}
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get userTitle() {
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return this._userTitle;
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}
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set userTitle(val) {
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assert(val === null || typeof val === "string", "Bad userTitle:", val);
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this._userTitle = val;
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}
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get title() {
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// FIXME: we shouldn't support both openGraph.title and ogTitle
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const ogTitle = this.openGraph && this.openGraph.title;
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const twitterTitle = this.twitterCard && this.twitterCard.title;
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let title =
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this.userTitle || ogTitle || twitterTitle || this.docTitle || this.url;
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if (Array.isArray(title)) {
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title = title[0];
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}
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if (!title) {
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title = "Screenshot";
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}
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return title;
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}
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get createdDate() {
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return this._createdDate;
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}
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set createdDate(val) {
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assert(val === null || typeof val === "number", "Bad createdDate:", val);
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this._createdDate = val;
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}
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clipNames() {
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const names = Object.getOwnPropertyNames(this._clips);
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names.sort(function (a, b) {
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return a.sortOrder < b.sortOrder ? 1 : 0;
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});
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return names;
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}
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getClip(name) {
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return this._clips[name];
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}
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addClip(val) {
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const name = makeRandomId();
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this.setClip(name, val);
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return name;
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}
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setClip(name, val) {
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const clip = new this.Clip(this, name, val);
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this._clips[name] = clip;
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}
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delClip(name) {
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if (!this._clips[name]) {
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throw new Error("No existing clip with id: " + name);
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}
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delete this._clips[name];
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}
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delAllClips() {
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this._clips = {};
|
|
}
|
|
biggestClipSortOrder() {
|
|
let biggest = 0;
|
|
for (const clipId in this._clips) {
|
|
biggest = Math.max(biggest, this._clips[clipId].sortOrder);
|
|
}
|
|
return biggest;
|
|
}
|
|
updateClipUrl(clipId, clipUrl) {
|
|
const clip = this.getClip(clipId);
|
|
if (clip && clip.image) {
|
|
clip.image.url = clipUrl;
|
|
} else {
|
|
console.warn("Tried to update the url of a clip with no image:", clip);
|
|
}
|
|
}
|
|
|
|
get siteName() {
|
|
return this._siteName || null;
|
|
}
|
|
set siteName(val) {
|
|
assert(typeof val === "string" || !val);
|
|
this._siteName = val;
|
|
}
|
|
|
|
get documentSize() {
|
|
return this._documentSize;
|
|
}
|
|
set documentSize(val) {
|
|
assert(typeof val === "object" || !val);
|
|
if (val) {
|
|
assert(
|
|
checkObject(
|
|
val,
|
|
["height", "width"],
|
|
"Bad attr to documentSize:",
|
|
Object.keys(val)
|
|
)
|
|
);
|
|
assert(typeof val.height === "number");
|
|
assert(typeof val.width === "number");
|
|
this._documentSize = val;
|
|
} else {
|
|
this._documentSize = null;
|
|
}
|
|
}
|
|
|
|
get thumbnail() {
|
|
return this._thumbnail;
|
|
}
|
|
set thumbnail(val) {
|
|
assert(typeof val === "string" || !val);
|
|
if (val) {
|
|
assert(isUrl(val));
|
|
this._thumbnail = val;
|
|
} else {
|
|
this._thumbnail = null;
|
|
}
|
|
}
|
|
|
|
get abTests() {
|
|
return this._abTests;
|
|
}
|
|
set abTests(val) {
|
|
if (val === null || val === undefined) {
|
|
this._abTests = null;
|
|
return;
|
|
}
|
|
assert(
|
|
typeof val === "object",
|
|
"abTests should be an object, not:",
|
|
typeof val
|
|
);
|
|
assert(!Array.isArray(val), "abTests should not be an Array");
|
|
for (const name in val) {
|
|
assert(
|
|
val[name] && typeof val[name] === "string",
|
|
`abTests.${name} should be a string:`,
|
|
typeof val[name]
|
|
);
|
|
}
|
|
this._abTests = val;
|
|
}
|
|
|
|
get firefoxChannel() {
|
|
return this._firefoxChannel;
|
|
}
|
|
set firefoxChannel(val) {
|
|
if (val === null || val === undefined) {
|
|
this._firefoxChannel = null;
|
|
return;
|
|
}
|
|
assert(
|
|
typeof val === "string",
|
|
"firefoxChannel should be a string, not:",
|
|
typeof val
|
|
);
|
|
this._firefoxChannel = val;
|
|
}
|
|
}
|
|
|
|
AbstractShot.prototype.REGULAR_ATTRS = `
|
|
origin fullUrl docTitle userTitle createdDate images
|
|
siteName openGraph twitterCard documentSize
|
|
thumbnail abTests firefoxChannel
|
|
`.split(/\s+/g);
|
|
|
|
// Attributes that will be accepted in the constructor, but ignored/dropped
|
|
AbstractShot.prototype.DEPRECATED_ATTRS = `
|
|
microdata history ogTitle createdDevice head body htmlAttrs bodyAttrs headAttrs
|
|
readable hashtags comments showPage isPublic resources url
|
|
fullScreenThumbnail favicon
|
|
`.split(/\s+/g);
|
|
|
|
AbstractShot.prototype.RECALL_ATTRS = `
|
|
url docTitle userTitle createdDate openGraph twitterCard images thumbnail
|
|
`.split(/\s+/g);
|
|
|
|
AbstractShot.prototype._OPENGRAPH_PROPERTIES = `
|
|
title type url image audio description determiner locale site_name video
|
|
image:secure_url image:type image:width image:height
|
|
video:secure_url video:type video:width image:height
|
|
audio:secure_url audio:type
|
|
article:published_time article:modified_time article:expiration_time article:author article:section article:tag
|
|
book:author book:isbn book:release_date book:tag
|
|
profile:first_name profile:last_name profile:username profile:gender
|
|
`.split(/\s+/g);
|
|
|
|
AbstractShot.prototype._TWITTERCARD_PROPERTIES = `
|
|
card site title description image
|
|
player player:width player:height player:stream player:stream:content_type
|
|
`.split(/\s+/g);
|
|
|
|
/** Represents one found image in the document (not a clip) */
|
|
class _Image {
|
|
// FIXME: either we have to notify the shot of updates, or make
|
|
// this read-only
|
|
constructor(json) {
|
|
assert(typeof json === "object", "Clip Image given a non-object", json);
|
|
assert(
|
|
checkObject(json, ["url"], ["dimensions", "title", "alt"]),
|
|
"Bad attrs for Image:",
|
|
Object.keys(json)
|
|
);
|
|
assert(isUrl(json.url), "Bad Image url:", json.url);
|
|
this.url = json.url;
|
|
assert(
|
|
!json.dimensions ||
|
|
(typeof json.dimensions.x === "number" &&
|
|
typeof json.dimensions.y === "number"),
|
|
"Bad Image dimensions:",
|
|
json.dimensions
|
|
);
|
|
this.dimensions = json.dimensions;
|
|
assert(
|
|
typeof json.title === "string" || !json.title,
|
|
"Bad Image title:",
|
|
json.title
|
|
);
|
|
this.title = json.title;
|
|
assert(
|
|
typeof json.alt === "string" || !json.alt,
|
|
"Bad Image alt:",
|
|
json.alt
|
|
);
|
|
this.alt = json.alt;
|
|
}
|
|
|
|
toJSON() {
|
|
return jsonify(this, ["url"], ["dimensions"]);
|
|
}
|
|
}
|
|
|
|
AbstractShot.prototype.Image = _Image;
|
|
|
|
/** Represents a clip, either a text or image clip */
|
|
class _Clip {
|
|
constructor(shot, id, json) {
|
|
this._shot = shot;
|
|
assert(
|
|
checkObject(json, ["createdDate", "image"], ["sortOrder"]),
|
|
"Bad attrs for Clip:",
|
|
Object.keys(json)
|
|
);
|
|
assert(typeof id === "string" && id, "Bad Clip id:", id);
|
|
this._id = id;
|
|
this.createdDate = json.createdDate;
|
|
if ("sortOrder" in json) {
|
|
assert(
|
|
typeof json.sortOrder === "number" || !json.sortOrder,
|
|
"Bad Clip sortOrder:",
|
|
json.sortOrder
|
|
);
|
|
}
|
|
if ("sortOrder" in json) {
|
|
this.sortOrder = json.sortOrder;
|
|
} else {
|
|
const biggestOrder = shot.biggestClipSortOrder();
|
|
this.sortOrder = biggestOrder + 100;
|
|
}
|
|
this.image = json.image;
|
|
}
|
|
|
|
toString() {
|
|
return `[Shot Clip id=${this.id} sortOrder=${this.sortOrder} image ${this.image.dimensions.x}x${this.image.dimensions.y}]`;
|
|
}
|
|
|
|
toJSON() {
|
|
return jsonify(this, ["createdDate"], ["sortOrder", "image"]);
|
|
}
|
|
|
|
get id() {
|
|
return this._id;
|
|
}
|
|
|
|
get createdDate() {
|
|
return this._createdDate;
|
|
}
|
|
set createdDate(val) {
|
|
assert(typeof val === "number" || !val, "Bad Clip createdDate:", val);
|
|
this._createdDate = val;
|
|
}
|
|
|
|
get image() {
|
|
return this._image;
|
|
}
|
|
set image(image) {
|
|
if (!image) {
|
|
this._image = undefined;
|
|
return;
|
|
}
|
|
assert(
|
|
checkObject(
|
|
image,
|
|
["url"],
|
|
["dimensions", "text", "location", "captureType", "type"]
|
|
),
|
|
"Bad attrs for Clip Image:",
|
|
Object.keys(image)
|
|
);
|
|
assert(isValidClipImageUrl(image.url), "Bad Clip image URL:", image.url);
|
|
assert(
|
|
image.captureType === "madeSelection" ||
|
|
image.captureType === "selection" ||
|
|
image.captureType === "visible" ||
|
|
image.captureType === "auto" ||
|
|
image.captureType === "fullPage" ||
|
|
image.captureType === "fullPageTruncated" ||
|
|
!image.captureType,
|
|
"Bad image.captureType:",
|
|
image.captureType
|
|
);
|
|
assert(
|
|
typeof image.text === "string" || !image.text,
|
|
"Bad Clip image text:",
|
|
image.text
|
|
);
|
|
if (image.dimensions) {
|
|
assert(
|
|
typeof image.dimensions.x === "number" &&
|
|
typeof image.dimensions.y === "number",
|
|
"Bad Clip image dimensions:",
|
|
image.dimensions
|
|
);
|
|
}
|
|
if (image.type) {
|
|
assert(
|
|
image.type === "png" || image.type === "jpeg",
|
|
"Unexpected image type:",
|
|
image.type
|
|
);
|
|
}
|
|
assert(
|
|
image.location &&
|
|
typeof image.location.left === "number" &&
|
|
typeof image.location.right === "number" &&
|
|
typeof image.location.top === "number" &&
|
|
typeof image.location.bottom === "number",
|
|
"Bad Clip image pixel location:",
|
|
image.location
|
|
);
|
|
if (
|
|
image.location.topLeftElement ||
|
|
image.location.topLeftOffset ||
|
|
image.location.bottomRightElement ||
|
|
image.location.bottomRightOffset
|
|
) {
|
|
assert(
|
|
typeof image.location.topLeftElement === "string" &&
|
|
image.location.topLeftOffset &&
|
|
typeof image.location.topLeftOffset.x === "number" &&
|
|
typeof image.location.topLeftOffset.y === "number" &&
|
|
typeof image.location.bottomRightElement === "string" &&
|
|
image.location.bottomRightOffset &&
|
|
typeof image.location.bottomRightOffset.x === "number" &&
|
|
typeof image.location.bottomRightOffset.y === "number",
|
|
"Bad Clip image element location:",
|
|
image.location
|
|
);
|
|
}
|
|
this._image = image;
|
|
}
|
|
|
|
isDataUrl() {
|
|
if (this.image) {
|
|
return this.image.url.startsWith("data:");
|
|
}
|
|
return false;
|
|
}
|
|
|
|
get sortOrder() {
|
|
return this._sortOrder || null;
|
|
}
|
|
set sortOrder(val) {
|
|
assert(typeof val === "number" || !val, "Bad Clip sortOrder:", val);
|
|
this._sortOrder = val;
|
|
}
|
|
}
|
|
|
|
AbstractShot.prototype.Clip = _Clip;
|
|
|
|
if (typeof exports !== "undefined") {
|
|
exports.AbstractShot = AbstractShot;
|
|
exports.originFromUrl = originFromUrl;
|
|
exports.isValidClipImageUrl = isValidClipImageUrl;
|
|
}
|
|
|
|
return exports;
|
|
})();
|
|
null;
|