☰

Twitter Click'n'Save

Add buttons to download images and videos in Twitter, also does some other enhancements.

目前为 2023-12-19 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name        Twitter Click'n'Save
  3. // @version     1.9.1-2023.12.19
  4. // @namespace   gh.alttiri
  5. // @description Add buttons to download images and videos in Twitter, also does some other enhancements.
  6. // @match       https://twitter.com/*
  7. // @homepageURL https://github.com/AlttiRi/twitter-click-and-save
  8. // @supportURL  https://github.com/AlttiRi/twitter-click-and-save/issues
  9. // @license     GPL-3.0
  10. // @grant       GM_registerMenuCommand
  11. // ==/UserScript==
  12. // ---------------------------------------------------------------------------------------------------------------------
  13. // ---------------------------------------------------------------------------------------------------------------------
  14.  
  15. // Please, report bugs and suggestions on GitHub, not Greasyfork.
  16. // --> https://github.com/AlttiRi/twitter-click-and-save/issues <--
  17.  
  18. // ---------------------------------------------------------------------------------------------------------------------
  19. // ---------------------------------------------------------------------------------------------------------------------
  20. // --- "Imports" --- //
  21.  
  22. const {StorageNames, StorageNamesOld} = getStorageNames();
  23.  
  24. const {verbose, debugPopup} = getDebugSettings(); // --- For debug --- //
  25.  
  26.  
  27. const {
  28.     sleep, fetchResource, downloadBlob,
  29.     addCSS,
  30.     getCookie,
  31.     throttle,
  32.     xpath, xpathAll,
  33.     responseProgressProxy,
  34.     dateToDayDateString,
  35.     toLineJSON,
  36.     isFirefox,
  37.     getBrowserName,
  38.     removeSearchParams,
  39. } = getUtils({verbose});
  40.  
  41. const LS = hoistLS({verbose});
  42.  
  43. const API = hoistAPI();
  44. const Tweet = hoistTweet();
  45. const Features = hoistFeatures();
  46. const I18N = getLanguageConstants();
  47.  
  48. // ---------------------------------------------------------------------------------------------------------------------
  49.  
  50. function getStorageNames() {
  51.     // New LocalStorage key names 2023.07.05
  52.     const StorageNames = {
  53.         settings:                "ujs-twitter-click-n-save-settings",
  54.         settingsImageHistoryBy:  "ujs-twitter-click-n-save-settings-image-history-by",
  55.         downloadedImageNames:    "ujs-twitter-click-n-save-downloaded-image-names",
  56.         downloadedImageTweetIds: "ujs-twitter-click-n-save-downloaded-image-tweet-ids",
  57.         downloadedVideoTweetIds: "ujs-twitter-click-n-save-downloaded-video-tweet-ids",
  58.  
  59.         migrated:                "ujs-twitter-click-n-save-migrated",     // Currently unused
  60.         browserName:             "ujs-twitter-click-n-save-browser-name", // Hidden settings
  61.         verbose:                 "ujs-twitter-click-n-save-verbose",      // Hidden settings for debug
  62.         debugPopup:              "ujs-twitter-click-n-save-debug-popup",  // Hidden settings for debug
  63.     };
  64.     const StorageNamesOld = {
  65.         settings:                "ujs-click-n-save-settings",
  66.         settingsImageHistoryBy:  "ujs-images-history-by",
  67.         downloadedImageNames:    "ujs-twitter-downloaded-images-names",
  68.         downloadedImageTweetIds: "ujs-twitter-downloaded-image-tweet-ids",
  69.         downloadedVideoTweetIds: "ujs-twitter-downloaded-video-tweet-ids",
  70.     };
  71.     return {StorageNames, StorageNamesOld};
  72. }
  73.  
  74. function getDebugSettings() {
  75.     let verbose    = false;
  76.     let debugPopup = false;
  77.     try {
  78.         verbose    = Boolean(JSON.parse(localStorage.getItem(StorageNames.verbose)));
  79.     } catch (err) {}
  80.     try {
  81.         debugPopup = Boolean(JSON.parse(localStorage.getItem(StorageNames.debugPopup)));
  82.     } catch (err) {}
  83.  
  84.     return {verbose, debugPopup};
  85. }
  86.  
  87. const historyHelper = getHistoryHelper();
  88. historyHelper.migrateLocalStore();
  89.  
  90. // ---------------------------------------------------------------------------------------------------------------------
  91.  
  92.  
  93. // ---------------------------------------------------------------------------------------------------------------------
  94.  
  95. if (globalThis.GM_registerMenuCommand /* undefined in Firefox with VM */ || typeof GM_registerMenuCommand === "function") {
  96.     GM_registerMenuCommand("Show settings", showSettings);
  97. }
  98.  
  99. const settings = loadSettings();
  100.  
  101. if (verbose) {
  102.     console.log("[ujs][settings]", settings);
  103. }
  104. if (debugPopup) {
  105.     showSettings();
  106. }
  107.  
  108. // ---------------------------------------------------------------------------------------------------------------------
  109.  
  110. const fetch = ujs_getGlobalFetch({verbose, strictTrackingProtectionFix: settings.strictTrackingProtectionFix});
  111.  
  112. function ujs_getGlobalFetch({verbose, strictTrackingProtectionFix} = {}) {
  113.     const useFirefoxStrictTrackingProtectionFix = strictTrackingProtectionFix === undefined ? true : strictTrackingProtectionFix; // Let's use by default
  114.     const useFirefoxFix = useFirefoxStrictTrackingProtectionFix && typeof wrappedJSObject === "object" && typeof wrappedJSObject.fetch === "function";
  115.     // --- [VM/GM + Firefox ~90+ + Enabled "Strict Tracking Protection"] fix --- //
  116.     function fixedFirefoxFetch(resource, init = {}) {
  117.         verbose && console.log("[ujs][wrappedJSObject.fetch]", resource, init);
  118.         if (init.headers instanceof Headers) {
  119.             // Since `Headers` are not allowed for structured cloning.
  120.             init.headers = Object.fromEntries(init.headers.entries());
  121.         }
  122.         return wrappedJSObject.fetch(cloneInto(resource, document), cloneInto(init, document));
  123.     }
  124.     return useFirefoxFix ? fixedFirefoxFetch : globalThis.fetch;
  125. }
  126.  
  127. // ---------------------------------------------------------------------------------------------------------------------
  128. // --- Features to execute --- //
  129.  
  130. const doNotPlayVideosAutomatically = false; // Hidden settings
  131.  
  132. function execFeaturesOnce() {
  133.     settings.goFromMobileToMainSite         && Features.goFromMobileToMainSite();
  134.     settings.addRequiredCSS                 && Features.addRequiredCSS();
  135.     settings.hideSignUpBottomBarAndMessages && Features.hideSignUpBottomBarAndMessages(doNotPlayVideosAutomatically);
  136.     settings.hideTrends                     && Features.hideTrends();
  137.     settings.highlightVisitedLinks          && Features.highlightVisitedLinks();
  138.     settings.hideLoginPopup                 && Features.hideLoginPopup();
  139. }
  140. function execFeaturesImmediately() {
  141.     settings.expandSpoilers     && Features.expandSpoilers();
  142. }
  143. function execFeatures() {
  144.     settings.imagesHandler      && Features.imagesHandler();
  145.     settings.videoHandler       && Features.videoHandler();
  146.     settings.expandSpoilers     && Features.expandSpoilers();
  147.     settings.hideSignUpSection  && Features.hideSignUpSection();
  148.     settings.directLinks        && Features.directLinks();
  149.     settings.handleTitle        && Features.handleTitle();
  150. }
  151.  
  152. // ---------------------------------------------------------------------------------------------------------------------
  153.  
  154. // ---------------------------------------------------------------------------------------------------------------------
  155. // --- Script runner --- //
  156.  
  157. (function starter(feats) {
  158.     const {once, onChangeImmediate, onChange} = feats;
  159.  
  160.     once();
  161.     onChangeImmediate();
  162.     const onChangeThrottled = throttle(onChange, 250);
  163.     onChangeThrottled();
  164.  
  165.     const targetNode = document.querySelector("body");
  166.     const observerOptions = {
  167.         subtree: true,
  168.         childList: true,
  169.     };
  170.     const observer = new MutationObserver(callback);
  171.     observer.observe(targetNode, observerOptions);
  172.  
  173.     function callback(mutationList, _observer) {
  174.         verbose && console.log("[ujs][mutationList]", mutationList);
  175.         onChangeImmediate();
  176.         onChangeThrottled();
  177.     }
  178. })({
  179.     once: execFeaturesOnce,
  180.     onChangeImmediate: execFeaturesImmediately,
  181.     onChange: execFeatures
  182. });
  183.  
  184. // ---------------------------------------------------------------------------------------------------------------------
  185. // ---------------------------------------------------------------------------------------------------------------------
  186.  
  187. function loadSettings() {
  188.     const defaultSettings = {
  189.         hideTrends: true,
  190.         hideSignUpSection: false,
  191.         hideSignUpBottomBarAndMessages: false,
  192.         doNotPlayVideosAutomatically: false,
  193.         goFromMobileToMainSite: false,
  194.  
  195.         highlightVisitedLinks: true,
  196.         highlightOnlySpecialVisitedLinks: true,
  197.         expandSpoilers: true,
  198.  
  199.         directLinks: true,
  200.         handleTitle: true,
  201.  
  202.         imagesHandler: true,
  203.         videoHandler: true,
  204.         addRequiredCSS: true,
  205.  
  206.         hideLoginPopup: false,
  207.         addBorder: false,
  208.  
  209.         downloadProgress: true,
  210.         strictTrackingProtectionFix: false,
  211.     };
  212.  
  213.     let savedSettings;
  214.     try {
  215.         savedSettings = JSON.parse(localStorage.getItem(StorageNames.settings)) || {};
  216.     } catch (err) {
  217.         console.error("[ujs][parse-settings]", err);
  218.         localStorage.removeItem(StorageNames.settings);
  219.         savedSettings = {};
  220.     }
  221.     savedSettings = Object.assign(defaultSettings, savedSettings);
  222.     return savedSettings;
  223. }
  224. function showSettings() {
  225.     closeSetting();
  226.     if (window.scrollY > 0) {
  227.         document.querySelector("html").classList.add("ujs-scroll-initial");
  228.         document.body.classList.add("ujs-scrollbar-width-margin-right");
  229.     }
  230.     document.body.classList.add("ujs-no-scroll");
  231.  
  232.     const modalWrapperStyle = `
  233.     width: 100%;
  234.     height: 100%;
  235.     position: fixed;
  236.     display: flex;
  237.     justify-content: center;
  238.     align-items: center;
  239.     z-index: 99999;
  240.     backdrop-filter: blur(4px);
  241.     background-color: rgba(255, 255, 255, 0.5);
  242.   `;
  243.     const modalSettingsStyle = `
  244.     background-color: white;
  245.     min-width: 320px;
  246.     min-height: 320px;
  247.     border: 1px solid darkgray;
  248.     padding: 8px;
  249.     box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
  250.   `;
  251.     const s = settings;
  252.     const downloadProgressFFTitle = `Disable the download progress if you use Firefox with "Enhanced Tracking Protection" set to "Strict" and ViolentMonkey, or GreaseMonkey extension`;
  253.     const strictTrackingProtectionFixFFTitle = `Choose this if you use ViolentMonkey, or GreaseMonkey in Firefox with "Enhanced Tracking Protection" set to "Strict". It is not required in case you use TamperMonkey.`;
  254.     document.body.insertAdjacentHTML("afterbegin", `
  255.   <div class="ujs-modal-wrapper" style="${modalWrapperStyle}">
  256.       <div class="ujs-modal-settings" style="${modalSettingsStyle}">
  257.           <fieldset>
  258.               <legend>Optional</legend>
  259.               <label title="Makes the button more visible"><input type="checkbox" ${s.addBorder ? "checked" : ""} name="addBorder">Add a white border to the download button<br/></label>
  260.               <label title="WARNING: It may broke the login page, but it works fine if you logged in and want to hide 'Messages'"><input type="checkbox" ${s.hideSignUpBottomBarAndMessages ? "checked" : ""} name="hideSignUpBottomBarAndMessages">Hide <strike><b>Sign Up Bar</b> and</strike> <b>Messages</b> (in the bottom). <span title="WARNING: It may broke the login page!">(beta)</span><br/></label>
  261.               <label><input type="checkbox" ${s.hideTrends ? "checked" : ""} name="hideTrends">Hide <b>Trends</b> (in the right column)*<br/></label>
  262.               <label hidden><input type="checkbox" ${s.doNotPlayVideosAutomatically ? "checked" : ""} name="doNotPlayVideosAutomatically">Do <i>Not</i> Play Videos Automatically</b><br/></label>
  263.               <label hidden><input type="checkbox" ${s.goFromMobileToMainSite ? "checked" : ""} name="goFromMobileToMainSite">Redirect from Mobile version (beta)<br/></label>
  264.           </fieldset>
  265.           <fieldset>
  266.               <legend>Recommended</legend>
  267.               <label><input type="checkbox" ${s.highlightVisitedLinks ? "checked" : ""} name="highlightVisitedLinks">Highlight Visited Links<br/></label>
  268.               <label title="In most cases absolute links are 3rd-party links"><input type="checkbox" ${s.highlightOnlySpecialVisitedLinks ? "checked" : ""} name="highlightOnlySpecialVisitedLinks">Highlight Only Absolute Visited Links<br/></label>
  269.  
  270.               <label title="Note: since the recent update the most NSFW spoilers are impossible to expand without an account"><input type="checkbox" ${s.expandSpoilers ? "checked" : ""} name="expandSpoilers">Expand Spoilers (if possible)*<br/></label>
  271.           </fieldset>
  272.           <fieldset>
  273.               <legend>Highly Recommended</legend>
  274.               <label><input type="checkbox" ${s.directLinks ? "checked" : ""} name="directLinks">Direct Links</label><br/>
  275.               <label><input type="checkbox" ${s.handleTitle ? "checked" : ""} name="handleTitle">Enchance Title*<br/></label>
  276.           </fieldset>
  277.           <fieldset ${isFirefox ? '': 'style="display: none"'}>
  278.               <legend>Firefox only</legend>
  279.               <label title='${downloadProgressFFTitle}'><input type="radio" ${s.downloadProgress ? "checked" : ""} name="firefoxDownloadProgress" value="downloadProgress">Download Progress<br/></label>
  280.               <label title='${strictTrackingProtectionFixFFTitle}'><input type="radio" ${s.strictTrackingProtectionFix ? "checked" : ""} name="firefoxDownloadProgress" value="strictTrackingProtectionFix">Strict Tracking Protection Fix<br/></label>
  281.           </fieldset>
  282.           <fieldset>
  283.               <legend>Main</legend>
  284.               <label><input type="checkbox" ${s.imagesHandler ? "checked" : ""} name="imagesHandler">Image Download Button<br/></label>
  285.               <label><input type="checkbox" ${s.videoHandler ? "checked" : ""} name="videoHandler">Video Download Button<br/></label>
  286.               <label hidden><input type="checkbox" ${s.addRequiredCSS ? "checked" : ""} name="addRequiredCSS">Add Required CSS*<br/></label><!-- * Only for the image download button in /photo/1 mode -->
  287.           </fieldset>
  288.           <fieldset>
  289.               <legend title="Outdated due to Twitter's updates, or impossible to reimplement">Outdated</legend>
  290.               <strike>
  291.  
  292.               <label><input type="checkbox" ${s.hideSignUpSection ? "checked" : ""} name="hideSignUpSection">Hide <b title='"New to Twitter?" (If yoy are not logged in)'>Sign Up</b> section (in the right column)*<br/></label>
  293.               <label title="Hides the modal login pop up. Useful if you have no account. \nWARNING: Currently it will close any popup, not only the login one.\nIt's recommended to use only if you do not have an account to hide the annoiyng login popup."><input type="checkbox" ${s.hideLoginPopup ? "checked" : ""} name="hideLoginPopup">Hide <strike>Login</strike> Popups. (beta)<br/></label>
  294.  
  295.               </strike>
  296.           </fieldset>
  297.           <hr>
  298.           <div style="display: flex; justify-content: space-around;">
  299.               <div>
  300.                 History:
  301.                 <button class="ujs-reload-export-button" style="padding: 5px" >Export</button>
  302.                 <button class="ujs-reload-import-button" style="padding: 5px" >Import</button>
  303.                 <button class="ujs-reload-merge-button"  style="padding: 5px" >Merge</button>
  304.               </div>
  305.               <div>
  306.                 <button class="ujs-reload-setting-button" style="padding: 5px" title="Reload the web page to apply changes">Reload page</button>
  307.                 <button class="ujs-close-setting-button" style="padding: 5px" title="Just close this popup.\nNote: You need to reload the web page to apply changes.">Close popup</button>
  308.               </div>
  309.           </div>
  310.           <hr>
  311.           <h4 style="margin: 0; padding-left: 8px; color: #444;">Notes:</h4>
  312.           <ul style="margin: 2px; padding-left: 16px; color: #444;">
  313.             <li><b>Reload the page</b> to apply changes.</li>
  314.             <li><b>*</b>-marked settings are language dependent. Currently, the follow languages are supported:<br/> "en", "ru", "es", "zh", "ja".</li>
  315.             <li hidden>The extension downloads only from twitter.com, not from <b>mobile</b>.twitter.com</li>
  316.           </ul>
  317.       </div>
  318.   </div>`);
  319.  
  320.     async function onDone(button) {
  321.         button.classList.remove("ujs-btn-error");
  322.         button.classList.add("ujs-btn-done");
  323.         await sleep(900);
  324.         button.classList.remove("ujs-btn-done");
  325.     }
  326.     async function onError(button, err) {
  327.         button.classList.remove("ujs-btn-done");
  328.         button.classList.add("ujs-btn-error");
  329.         button.title = err.message;
  330.         await sleep(1800);
  331.         button.classList.remove("ujs-btn-error");
  332.     }
  333.  
  334.     const exportButton = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-export-button");
  335.     const importButton = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-import-button");
  336.     const mergeButton  = document.querySelector("body > .ujs-modal-wrapper .ujs-reload-merge-button");
  337.  
  338.     exportButton.addEventListener("click", (event) => {
  339.         const button = event.currentTarget;
  340.         historyHelper.exportHistory(() => onDone(button));
  341.     });
  342.     sleep(50).then(() => {
  343.         const infoObj = getStoreInfo();
  344.         exportButton.title = Object.entries(infoObj).reduce((acc, [key, value]) => {
  345.             acc += `${key}: ${value}\n`;
  346.             return acc;
  347.         }, "");
  348.     });
  349.  
  350.     importButton.addEventListener("click", (event) => {
  351.         const button = event.currentTarget;
  352.         historyHelper.importHistory(
  353.             () => onDone(button),
  354.             (err) => onError(button, err)
  355.         );
  356.     });
  357.     mergeButton.addEventListener("click", (event) => {
  358.         const button = event.currentTarget;
  359.         historyHelper.mergeHistory(
  360.             () => onDone(button),
  361.             (err) => onError(button, err)
  362.         );
  363.     });
  364.  
  365.     document.querySelector("body > .ujs-modal-wrapper .ujs-reload-setting-button").addEventListener("click", () => {
  366.         location.reload();
  367.     });
  368.  
  369.     const checkboxList = document.querySelectorAll("body > .ujs-modal-wrapper input[type=checkbox], body > .ujs-modal-wrapper input[type=radio]");
  370.     checkboxList.forEach(checkbox => {
  371.         checkbox.addEventListener("change", saveSetting);
  372.     });
  373.  
  374.     document.querySelector("body > .ujs-modal-wrapper .ujs-close-setting-button").addEventListener("click", closeSetting);
  375.  
  376.     function saveSetting() {
  377.         const entries = [...document.querySelectorAll("body > .ujs-modal-wrapper input[type=checkbox]")]
  378.             .map(checkbox => [checkbox.name, checkbox.checked]);
  379.         const radioEntries = [...document.querySelectorAll("body > .ujs-modal-wrapper input[type=radio]")]
  380.             .map(checkbox => [checkbox.value, checkbox.checked])
  381.         const settings = Object.fromEntries([entries, radioEntries].flat());
  382.         // verbose && console.log("[ujs][save-settings]", settings);
  383.         localStorage.setItem(StorageNames.settings, JSON.stringify(settings));
  384.     }
  385.  
  386.     function closeSetting() {
  387.         document.body.classList.remove("ujs-no-scroll");
  388.         document.body.classList.remove("ujs-scrollbar-width-margin-right");
  389.         document.querySelector("html").classList.remove("ujs-scroll-initial");
  390.         document.querySelector("body > .ujs-modal-wrapper")?.remove();
  391.     }
  392.  
  393.  
  394. }
  395.  
  396. // ---------------------------------------------------------------------------------------------------------------------
  397. // ---------------------------------------------------------------------------------------------------------------------
  398. // --- Twitter Specific code --- //
  399.  
  400. const downloadedImages        = new LS(StorageNames.downloadedImageNames);
  401. const downloadedImageTweetIds = new LS(StorageNames.downloadedImageTweetIds);
  402. const downloadedVideoTweetIds = new LS(StorageNames.downloadedVideoTweetIds);
  403.  
  404. // --- That to use for the image history --- //
  405. /** @type {"TWEET_ID" | "IMAGE_NAME"} */
  406. const imagesHistoryBy = LS.getItem(StorageNames.settingsImageHistoryBy, "IMAGE_NAME"); // Hidden settings
  407. // With "TWEET_ID" downloading of 1 image of 4 will mark all 4 images as "already downloaded"
  408. // on the next time when the tweet will appear.
  409. // "IMAGE_NAME" will count each image of a tweet, but it will take more data to store.
  410.  
  411.  
  412. // ---------------------------------------------------------------------------------------------------------------------
  413. // --- Twitter.Features --- //
  414. function hoistFeatures() {
  415.     class Features {
  416.         static createButton({url, downloaded, isVideo, isThumb, isMultiMedia}) {
  417.             const btn = document.createElement("div");
  418.             btn.innerHTML = `
  419. <div class="ujs-btn-common ujs-btn-background"></div>
  420. <div class="ujs-btn-common ujs-hover"></div>
  421. <div class="ujs-btn-common ujs-shadow"></div>
  422. <div class="ujs-btn-common ujs-progress" style="--progress: 0%"></div>
  423. <div class="ujs-btn-common ujs-btn-error-text"></div>`.slice(1);
  424.             btn.classList.add("ujs-btn-download");
  425.             if (!downloaded) {
  426.                 btn.classList.add("ujs-not-downloaded");
  427.             } else {
  428.                 btn.classList.add("ujs-already-downloaded");
  429.             }
  430.             if (isVideo) {
  431.                 btn.classList.add("ujs-video");
  432.             }
  433.             if (url) {
  434.                 btn.dataset.url = url;
  435.             }
  436.             if (isThumb) {
  437.                 btn.dataset.thumb = "true";
  438.             }
  439.             if (isMultiMedia) {
  440.                 btn.dataset.isMultiMedia = "true";
  441.             }
  442.             return btn;
  443.         }
  444.  
  445.         static _markButtonAsDownloaded(btn) {
  446.             btn.classList.remove("ujs-downloading");
  447.             btn.classList.remove("ujs-recently-downloaded");
  448.             btn.classList.add("ujs-downloaded");
  449.             btn.addEventListener("pointerenter", e => {
  450.                 btn.classList.add("ujs-recently-downloaded");
  451.             }, {once: true});
  452.         }
  453.  
  454.         // Banner/Background
  455.         static async _downloadBanner(url, btn) {
  456.             const username = location.pathname.slice(1).split("/")[0];
  457.  
  458.             btn.classList.add("ujs-downloading");
  459.  
  460.             // https://pbs.twimg.com/profile_banners/34743251/1596331248/1500x500
  461.             const {
  462.                 id, seconds, res
  463.             } = url.match(/(?<=\/profile_banners\/)(?<id>\d+)\/(?<seconds>\d+)\/(?<res>\d+x\d+)/)?.groups || {};
  464.  
  465.             const {blob, lastModifiedDate, extension, name} = await fetchResource(url);
  466.  
  467.             Features.verifyBlob(blob, url, btn);
  468.  
  469.             const filename = `[twitter][bg] ${username}—${lastModifiedDate}—${id}—${seconds}.${extension}`;
  470.             downloadBlob(blob, filename, url);
  471.  
  472.             Features._markButtonAsDownloaded(btn);
  473.         }
  474.  
  475.         static _ImageHistory = class {
  476.             static getImageNameFromUrl(url) {
  477.                 const _url = new URL(url);
  478.                 const {filename} = (_url.origin + _url.pathname).match(/(?<filename>[^\/]+$)/).groups;
  479.                 return filename.match(/^[^.]+/)[0]; // remove extension
  480.             }
  481.             static isDownloaded({id, url}) {
  482.                 if (imagesHistoryBy === "TWEET_ID") {
  483.                     return downloadedImageTweetIds.hasItem(id);
  484.                 } else if (imagesHistoryBy === "IMAGE_NAME") {
  485.                     const name = Features._ImageHistory.getImageNameFromUrl(url);
  486.                     return downloadedImages.hasItem(name);
  487.                 }
  488.             }
  489.             static async markDownloaded({id, url}) {
  490.                 if (imagesHistoryBy === "TWEET_ID") {
  491.                     await downloadedImageTweetIds.pushItem(id);
  492.                 } else if (imagesHistoryBy === "IMAGE_NAME") {
  493.                     const name = Features._ImageHistory.getImageNameFromUrl(url);
  494.                     await downloadedImages.pushItem(name);
  495.                 }
  496.             }
  497.         }
  498.         static async imagesHandler() {
  499.             verbose && console.log("[ujs][imagesHandler]");
  500.             const images = document.querySelectorAll(`img:not([data-handled]):not([src$=".svg"])`);
  501.             for (const img of images) {
  502.                 if (img.dataset.handled) {
  503.                     continue;
  504.                 }
  505.                 img.dataset.handled = "true";
  506.                 if (img.width === 0) {
  507.                     const imgOnload = new Promise(async (resolve) => {
  508.                         img.onload = resolve;
  509.                     });
  510.                     await Promise.any([imgOnload, sleep(500)]);
  511.                     await sleep(10); // to get updated img.width
  512.                 }
  513.                 if (img.width < 140) {
  514.                     continue;
  515.                 }
  516.                 verbose && console.log("[ujs][imagesHandler]", {img, img_width: img.width});
  517.  
  518.                 let anchor = img.closest("a");
  519.                 // if expanded_url (an image is _opened_ "https://twitter.com/UserName/status/1234567890123456789/photo/1" [fake-url])
  520.                 if (!anchor) {
  521.                     anchor = img.parentNode;
  522.                 }
  523.  
  524.                 const listitemEl = img.closest(`li[role="listitem"]`);
  525.                 const isThumb = Boolean(listitemEl); // isMediaThumbnail
  526.  
  527.                 if (isThumb && anchor.querySelector("svg")) {
  528.                     await Features.multiMediaThumbHandler(img);
  529.                     continue;
  530.                 }
  531.  
  532.                 const isMobileVideo = img.src.includes("ext_tw_video_thumb")  || img.closest(`a[aria-label="Embedded video"]`) || img.alt === "Animated Text GIF" || img.alt === "Embedded video"
  533.                                    || img.src.includes("tweet_video_thumb") /* GIF thumb */;
  534.                 if (isMobileVideo) {
  535.                     await Features.mobileVideoHandler(img, isThumb);
  536.                     continue;
  537.                 }
  538.  
  539.                 const btn = Features.createButton({url: img.src, isThumb});
  540.                 btn.addEventListener("click", Features._imageClickHandler);
  541.                 anchor.append(btn);
  542.  
  543.                 const downloaded = Features._ImageHistory.isDownloaded({
  544.                     id: Tweet.of(btn).id,
  545.                     url: btn.dataset.url
  546.                 });
  547.                 if (downloaded) {
  548.                     btn.classList.add("ujs-already-downloaded");
  549.                 }
  550.             }
  551.         }
  552.         static async _imageClickHandler(event) {
  553.             event.preventDefault();
  554.             event.stopImmediatePropagation();
  555.  
  556.             const btn = event.currentTarget;
  557.             let url = btn.dataset.url;
  558.  
  559.             const isBanner = url.includes("/profile_banners/");
  560.             if (isBanner) {
  561.                 return Features._downloadBanner(url, btn);
  562.             }
  563.  
  564.             const {id, author} = Tweet.of(btn);
  565.             verbose && console.log("[ujs][_imageClickHandler]", {id, author});
  566.  
  567.             await Features._downloadPhotoMediaEntry(id, author, url, btn);
  568.             Features._markButtonAsDownloaded(btn);
  569.         }
  570.         static async _downloadPhotoMediaEntry(id, author, url, btn) {
  571.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  572.             const btnProgress = btn.querySelector(".ujs-progress");
  573.             if (btn.textContent !== "") {
  574.                 btnErrorTextElem.textContent = "";
  575.             }
  576.             btn.classList.remove("ujs-error");
  577.             btn.classList.add("ujs-downloading");
  578.  
  579.             let onProgress = null;
  580.             if (settings.downloadProgress) {
  581.                 onProgress = ({loaded, total}) => btnProgress.style.cssText = "--progress: " + loaded / total * 90 + "%";
  582.             }
  583.  
  584.             const originals = ["orig", "4096x4096"];
  585.             const samples = ["large", "medium", "900x900", "small", "360x360", /*"240x240", "120x120", "tiny"*/];
  586.             let isSample = false;
  587.             const previewSize = new URL(url).searchParams.get("name");
  588.             if (!samples.includes(previewSize)) {
  589.                 samples.push(previewSize);
  590.             }
  591.  
  592.             function handleImgUrl(url) {
  593.                 const urlObj = new URL(url);
  594.                 if (originals.length) {
  595.                     urlObj.searchParams.set("name", originals.shift());
  596.                 } else if (samples.length) {
  597.                     isSample = true;
  598.                     urlObj.searchParams.set("name", samples.shift());
  599.                 } else {
  600.                     throw new Error("All fallback URLs are failed to download.");
  601.                 }
  602.                 if (urlObj.searchParams.get("format") === "webp") {
  603.                     urlObj.searchParams.set("format", "jpg");
  604.                 }
  605.                 url = urlObj.toString();
  606.                 verbose && console.log("[ujs][handleImgUrl][url]", url);
  607.                 return url;
  608.             }
  609.  
  610.             async function safeFetchResource(url) {
  611.                 while (true) {
  612.                     url = handleImgUrl(url);
  613.                     try {
  614.                         const result = await fetchResource(url, onProgress);
  615.                         if (result.status === 404) {
  616.                             const urlObj = new URL(url);
  617.                             const params = urlObj.searchParams;
  618.                             if (params.get("name") === "orig" && params.get("format") === "jpg") {
  619.                                 params.set("format", "png");
  620.                                 url = urlObj.toString();
  621.                                 return await fetchResource(url, onProgress);
  622.                             }
  623.                         }
  624.                         return result;
  625.                     } catch (err) {
  626.                         if (!originals.length) {
  627.                             btn.classList.add("ujs-error");
  628.                             btnErrorTextElem.textContent = "";
  629.                             // Add ⚠
  630.                             btnErrorTextElem.style = `background-image: url("https://abs-0.twimg.com/emoji/v2/svg/26a0.svg"); background-size: 1.5em; background-position: center; background-repeat: no-repeat;`;
  631.                             btn.title = "[warning] Original images are not available.";
  632.                         }
  633.  
  634.                         const ffAutoAllocateChunkSizeBug = err.message.includes("autoAllocateChunkSize"); // https://bugzilla.mozilla.org/show_bug.cgi?id=1757836
  635.                         if (!samples.length || ffAutoAllocateChunkSizeBug) {
  636.                             btn.classList.add("ujs-error");
  637.                             btnErrorTextElem.textContent = "";
  638.                             // Add ❌
  639.                             btnErrorTextElem.style = `background-image: url("https://abs-0.twimg.com/emoji/v2/svg/274c.svg"); background-size: 1.5em; background-position: center; background-repeat: no-repeat;`;
  640.  
  641.                             const ffHint = isFirefox && !settings.strictTrackingProtectionFix && ffAutoAllocateChunkSizeBug ? "\nTry to enable 'Strict Tracking Protection Fix' in the userscript settings." : "";
  642.                             btn.title = "Failed to download the image." + ffHint;
  643.                             throw new Error("[error] Fallback URLs are failed.");
  644.                         }
  645.                     }
  646.                 }
  647.             }
  648.  
  649.             const {blob, lastModifiedDate, extension, name} = await safeFetchResource(url);
  650.  
  651.             Features.verifyBlob(blob, url, btn);
  652.  
  653.             btnProgress.style.cssText = "--progress: 100%";
  654.  
  655.             const sampleText = !isSample ? "" : "[sample]";
  656.             const filename = `[twitter]${sampleText} ${author}—${lastModifiedDate}—${id}—${name}.${extension}`;
  657.             downloadBlob(blob, filename, url);
  658.  
  659.             const downloaded = btn.classList.contains("ujs-already-downloaded") || btn.classList.contains("ujs-downloaded");
  660.             if (!downloaded && !isSample) {
  661.                 await Features._ImageHistory.markDownloaded({id, url});
  662.             }
  663.  
  664.             if (btn.dataset.isMultiMedia && !isSample) { // dirty fix
  665.                 const isDownloaded = Features._ImageHistory.isDownloaded({id, url});
  666.                 if (!isDownloaded) {
  667.                     await Features._ImageHistory.markDownloaded({id, url});
  668.                 }
  669.             }
  670.  
  671.             await sleep(40);
  672.             btnProgress.style.cssText = "--progress: 0%";
  673.         }
  674.  
  675.  
  676.         // Quick Dirty Fix // todo refactor
  677.         static async mobileVideoHandler(imgElem, isThumb) { // + thumbVideoHandler
  678.             verbose && console.log("[ujs][mobileVideoHandler][vid]", imgElem);
  679.  
  680.             const btn = Features.createButton({isVideo: true, url: imgElem.src, isThumb});
  681.             btn.addEventListener("click", Features._videoClickHandler);
  682.  
  683.             let anchor = imgElem.closest("a");
  684.             if (!anchor) {
  685.                 anchor = imgElem.parentNode;
  686.             }
  687.             anchor.append(btn);
  688.  
  689.             const tweet = Tweet.of(btn);
  690.             const id = tweet.id;
  691.             const tweetElem = tweet.elem || btn.closest(`[data-testid="tweet"]`);
  692.             let vidNumber = 0;
  693.  
  694.             if (tweetElem) {
  695.                 const map = Features.tweetVidWeakMapMobile;
  696.                 if (map.has(tweetElem)) {
  697.                     vidNumber = map.get(tweetElem) + 1;
  698.                     map.set(tweetElem, vidNumber);
  699.                 } else {
  700.                     map.set(tweetElem, vidNumber); // can throw an error for null
  701.                 }
  702.             } // else thumbnail
  703.  
  704.             const historyId = vidNumber ? id + "-" + vidNumber : id;
  705.  
  706.             const downloaded = downloadedVideoTweetIds.hasItem(historyId);
  707.             if (downloaded) {
  708.                 btn.classList.add("ujs-already-downloaded");
  709.             }
  710.         }
  711.  
  712.  
  713.         static async multiMediaThumbHandler(imgElem) {
  714.             verbose && console.log("[ujs][multiMediaThumbHandler]", imgElem);
  715.             let isVideo = false;
  716.             if (imgElem.src.includes("/ext_tw_video_thumb/")) {
  717.                 isVideo = true;
  718.             }
  719.  
  720.             const btn = Features.createButton({url: imgElem.src, isVideo, isThumb: true, isMultiMedia: true});
  721.             btn.addEventListener("click", Features._multiMediaThumbClickHandler);
  722.             let anchor = imgElem.closest("a");
  723.             if (!anchor) {
  724.                 anchor = imgElem.parentNode;
  725.             }
  726.             anchor.append(btn);
  727.  
  728.             let downloaded;
  729.             const tweetId = Tweet.of(btn).id;
  730.             if (isVideo) {
  731.                 downloaded = downloadedVideoTweetIds.hasItem(tweetId);
  732.             } else {
  733.                 downloaded = Features._ImageHistory.isDownloaded({
  734.                     id: tweetId,
  735.                     url: btn.dataset.url
  736.                 });
  737.             }
  738.             if (downloaded) {
  739.                 btn.classList.add("ujs-already-downloaded");
  740.             }
  741.         }
  742.         static async _multiMediaThumbClickHandler(event) {
  743.             event.preventDefault();
  744.             event.stopImmediatePropagation();
  745.             const btn = event.currentTarget;
  746.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  747.             if (btn.textContent !== "") {
  748.                 btnErrorTextElem.textContent = "";
  749.             }
  750.             const {id} = Tweet.of(btn);
  751.             /** @type {TweetMediaEntry[]} */
  752.             let medias;
  753.             try {
  754.                 medias = await API.getTweetMedias(id);
  755.                 medias = medias.filter(mediaEntry => mediaEntry.tweet_id === id);
  756.             } catch (err) {
  757.                 console.error(err);
  758.                 btn.classList.add("ujs-error");
  759.                 btnErrorTextElem.textContent = "Error";
  760.                 btn.title = "API.getTweetMedias Error";
  761.                 throw new Error("API.getTweetMedias Error");
  762.             }
  763.  
  764.             for (const mediaEntry of medias) {
  765.                 if (mediaEntry.type === "video") {
  766.                     await Features._downloadVideoMediaEntry(mediaEntry, btn, id);
  767.                 } else { // "photo"
  768.                     const {screen_name: author,download_url: url, tweet_id: id} = mediaEntry;
  769.                     await Features._downloadPhotoMediaEntry(id, author, url, btn);
  770.                 }
  771.                 await sleep(50);
  772.             }
  773.             Features._markButtonAsDownloaded(btn);
  774.         }
  775.  
  776.         static tweetVidWeakMapMobile = new WeakMap();
  777.         static tweetVidWeakMap = new WeakMap();
  778.         static async videoHandler() {
  779.             const videos = document.querySelectorAll("video:not([data-handled])");
  780.             for (const vid of videos) {
  781.                 if (vid.dataset.handled) {
  782.                     continue;
  783.                 }
  784.                 vid.dataset.handled = "true";
  785.                 verbose && console.log("[ujs][videoHandler][vid]", vid);
  786.  
  787.                 const poster = vid.getAttribute("poster");
  788.  
  789.                 const btn = Features.createButton({isVideo: true, url: poster});
  790.                 btn.addEventListener("click", Features._videoClickHandler);
  791.  
  792.                 let elem = vid.closest(`[data-testid="videoComponent"]`).parentNode;
  793.                 if (elem) {
  794.                     elem.append(btn);
  795.                 } else {
  796.                     elem = vid.parentNode.parentNode.parentNode;
  797.                     elem.after(btn);
  798.                 }
  799.  
  800.  
  801.                 const tweet = Tweet.of(btn);
  802.                 const id = tweet.id;
  803.                 const tweetElem = tweet.elem;
  804.                 let vidNumber = 0;
  805.  
  806.                 if (tweetElem) {
  807.                     const map = Features.tweetVidWeakMap;
  808.                     if (map.has(tweetElem)) {
  809.                         vidNumber = map.get(tweetElem) + 1;
  810.                         map.set(tweetElem, vidNumber);
  811.                     } else {
  812.                         map.set(tweetElem, vidNumber); // can throw an error for null
  813.                     }
  814.                 } else { // expanded_url
  815.                     await sleep(10);
  816.                     const match = location.pathname.match(/(?<=\/video\/)\d/);
  817.                     if (!match) {
  818.                         verbose && console.log("[ujs][videoHandler] missed match for match");
  819.                     }
  820.                     vidNumber = Number(match[0]) - 1;
  821.  
  822.                     console.warn("[ujs][videoHandler] vidNumber", vidNumber);
  823.                     // todo: add support for expanded_url video downloading
  824.                 }
  825.  
  826.                 const historyId = vidNumber ? id + "-" + vidNumber : id;
  827.  
  828.                 const downloaded = downloadedVideoTweetIds.hasItem(historyId);
  829.                 if (downloaded) {
  830.                     btn.classList.add("ujs-already-downloaded");
  831.                 }
  832.             }
  833.         }
  834.         static async _videoClickHandler(event) { // todo: parse the URL from HTML (For "Embedded video" (?))
  835.             event.preventDefault();
  836.             event.stopImmediatePropagation();
  837.  
  838.             const btn = event.currentTarget;
  839.             const btnErrorTextElem = btn.querySelector(".ujs-btn-error-text");
  840.             const {id} = Tweet.of(btn);
  841.  
  842.             if (btn.textContent !== "") {
  843.                 btnErrorTextElem.textContent = "";
  844.             }
  845.             btn.classList.remove("ujs-error");
  846.             btn.classList.add("ujs-downloading");
  847.  
  848.             let mediaEntry;
  849.             try {
  850.                 const medias = await API.getTweetMedias(id);
  851.                 const posterUrl = btn.dataset.url; // [note] if `posterUrl` has `searchParams`, it will have no extension at the end of `pathname`.
  852.                 const posterUrlClear = removeSearchParams(posterUrl);
  853.                 mediaEntry = medias.find(media => media.preview_url.startsWith(posterUrlClear));
  854.                 verbose && console.log("[ujs][_videoClickHandler] mediaEntry", mediaEntry);
  855.             } catch (err) {
  856.                 console.error(err);
  857.                 btn.classList.add("ujs-error");
  858.                 btnErrorTextElem.textContent = "Error";
  859.                 btn.title = "API.getVideoInfo Error";
  860.                 throw new Error("API.getVideoInfo Error");
  861.             }
  862.  
  863.             await Features._downloadVideoMediaEntry(mediaEntry, btn, id);
  864.             Features._markButtonAsDownloaded(btn);
  865.         }
  866.  
  867.         static async _downloadVideoMediaEntry(mediaEntry, btn, id /* of original tweet */) {
  868.             const {
  869.                 screen_name:  author,
  870.                 tweet_id:     videoTweetId,
  871.                 download_url: url,
  872.                 type_index:   vidNumber,
  873.             } = mediaEntry;
  874.             if (!url) {
  875.                 throw new Error("No video URL found");
  876.             }
  877.  
  878.             const btnProgress = btn.querySelector(".ujs-progress");
  879.  
  880.             let onProgress = null;
  881.             if (settings.downloadProgress) {
  882.                 onProgress = ({loaded, total}) => btnProgress.style.cssText = "--progress: " + loaded / total * 90 + "%";
  883.             }
  884.  
  885.             const {blob, lastModifiedDate, extension, name} = await fetchResource(url, onProgress);
  886.  
  887.             btnProgress.style.cssText = "--progress: 100%";
  888.  
  889.             Features.verifyBlob(blob, url, btn);
  890.  
  891.             const filename = `[twitter] ${author}—${lastModifiedDate}—${videoTweetId}—${name}.${extension}`;
  892.             downloadBlob(blob, filename, url);
  893.  
  894.             const downloaded = btn.classList.contains("ujs-already-downloaded");
  895.             const historyId = vidNumber /* not 0 */ ? videoTweetId + "-" + vidNumber : videoTweetId;
  896.             if (!downloaded) {
  897.                 await downloadedVideoTweetIds.pushItem(historyId);
  898.                 if (videoTweetId !== id) { // if QRT
  899.                     const historyId = vidNumber ? id + "-" + vidNumber : id;
  900.                     await downloadedVideoTweetIds.pushItem(historyId);
  901.                 }
  902.             }
  903.  
  904.             if (btn.dataset.isMultiMedia) { // dirty fix
  905.                 const isDownloaded = downloadedVideoTweetIds.hasItem(historyId);
  906.                 if (!isDownloaded) {
  907.                     await downloadedVideoTweetIds.pushItem(historyId);
  908.                     if (videoTweetId !== id) { // if QRT
  909.                         const historyId = vidNumber ? id + "-" + vidNumber : id;
  910.                         await downloadedVideoTweetIds.pushItem(historyId);
  911.                     }
  912.                 }
  913.             }
  914.  
  915.             await sleep(40);
  916.             btnProgress.style.cssText = "--progress: 0%";
  917.         }
  918.  
  919.         static verifyBlob(blob, url, btn) {
  920.             if (!blob.size) {
  921.                 btn.classList.add("ujs-error");
  922.                 btn.querySelector(".ujs-btn-error-text").textContent = "Error";
  923.                 btn.title = "Download Error";
  924.                 throw new Error("Zero size blob: " + url);
  925.             }
  926.         }
  927.  
  928.         static addRequiredCSS() {
  929.             const code = getUserScriptCSS();
  930.             addCSS(code);
  931.         }
  932.  
  933.         // it depends on `directLinks()` use only it after `directLinks()`
  934.         static handleTitle(title) {
  935.  
  936.             if (!I18N.QUOTES) { // Unsupported lang, no QUOTES, ON_TWITTER, TWITTER constants
  937.                 return;
  938.             }
  939.  
  940.             // if not an opened tweet
  941.             if (!location.href.match(/twitter\.com\/[^\/]+\/status\/\d+/)) {
  942.                 return;
  943.             }
  944.  
  945.             let titleText = title || document.title;
  946.             if (titleText === Features.lastHandledTitle) {
  947.                 return;
  948.             }
  949.             Features.originalTitle = titleText;
  950.  
  951.             const [OPEN_QUOTE, CLOSE_QUOTE] = I18N.QUOTES;
  952.             const urlsToReplace = [
  953.                 ...titleText.matchAll(new RegExp(`https:\\/\\/t\\.co\\/[^ ${CLOSE_QUOTE}]+`, "g"))
  954.             ].map(el => el[0]);
  955.             // the last one may be the URL to the tweet // or to an embedded shared URL
  956.  
  957.             const map = new Map();
  958.             const anchors = document.querySelectorAll(`a[data-redirect^="https://t.co/"]`);
  959.             for (const anchor of anchors) {
  960.                 if (urlsToReplace.includes(anchor.dataset.redirect)) {
  961.                     map.set(anchor.dataset.redirect, anchor.href);
  962.                 }
  963.             }
  964.  
  965.             const lastUrl = urlsToReplace.slice(-1)[0];
  966.             let lastUrlIsAttachment = false;
  967.             let attachmentDescription = "";
  968.             if (!map.has(lastUrl)) {
  969.                 const a = document.querySelector(`a[href="${lastUrl}?amp=1"]`);
  970.                 if (a) {
  971.                     lastUrlIsAttachment = true;
  972.                     attachmentDescription = document.querySelectorAll(`a[href="${lastUrl}?amp=1"]`)[1].innerText;
  973.                     attachmentDescription = attachmentDescription.replaceAll("\n", " — ");
  974.                 }
  975.             }
  976.  
  977.             for (const [key, value] of map.entries()) {
  978.                 titleText = titleText.replaceAll(key, value + ` (${key})`);
  979.             }
  980.  
  981.             titleText = titleText.replace(new RegExp(`${I18N.ON_TWITTER}(?= ${OPEN_QUOTE})`), ":");
  982.             titleText = titleText.replace(new RegExp(`(?<=${CLOSE_QUOTE}) \\\/ ${I18N.TWITTER}$`), "");
  983.             if (!lastUrlIsAttachment) {
  984.                 const regExp = new RegExp(`(?<short> https:\\/\\/t\\.co\\/.{6,14})${CLOSE_QUOTE}$`);
  985.                 titleText = titleText.replace(regExp, (match, p1, p2, offset, string) => `${CLOSE_QUOTE} —${p1}`);
  986.             } else {
  987.                 titleText = titleText.replace(lastUrl, `${lastUrl} (${attachmentDescription})`);
  988.             }
  989.             document.title = titleText; // Note: some characters will be removed automatically (`\n`, extra spaces)
  990.             Features.lastHandledTitle = document.title;
  991.         }
  992.         static lastHandledTitle = "";
  993.         static originalTitle = "";
  994.  
  995.         static profileUrlCache = new Map();
  996.         static async directLinks() {
  997.             verbose && console.log("[ujs][directLinks]");
  998.             const hasHttp = url => Boolean(url.match(/^https?:\/\//));
  999.             const anchors = xpathAll(`.//a[@dir="ltr" and child::span and not(@data-handled)]`);
  1000.             for (const anchor of anchors) {
  1001.                 const redirectUrl = new URL(anchor.href);
  1002.                 const shortUrl = redirectUrl.origin + redirectUrl.pathname; // remove "?amp=1"
  1003.  
  1004.                 const hrefAttr = anchor.getAttribute("href");
  1005.                 if (hrefAttr.startsWith("/")) {
  1006.                     anchor.dataset.handled = "true";
  1007.                     return;
  1008.                 }
  1009.  
  1010.                 verbose && console.log("[ujs][directLinks]", {hrefAttr, redirectUrl_href: redirectUrl.href, shortUrl});
  1011.  
  1012.                 anchor.dataset.redirect = shortUrl;
  1013.                 anchor.dataset.handled = "true";
  1014.                 anchor.rel = "nofollow noopener noreferrer";
  1015.  
  1016.                 if (Features.profileUrlCache.has(shortUrl)) {
  1017.                     anchor.href = Features.profileUrlCache.get(shortUrl);
  1018.                     continue;
  1019.                 }
  1020.  
  1021.                 const nodes = xpathAll(`./span[text() != "…"]|./text()`, anchor);
  1022.                 let url = nodes.map(node => node.textContent).join("");
  1023.  
  1024.                 const doubleProtocolPrefix = url.match(/(?<dup>^https?:\/\/)(?=https?:)/)?.groups.dup;
  1025.                 if (doubleProtocolPrefix) {
  1026.                     url = url.slice(doubleProtocolPrefix.length);
  1027.                     const span = anchor.querySelector(`[aria-hidden="true"]`);
  1028.                     if (hasHttp(span.textContent)) { // Fix Twitter's bug related to text copying
  1029.                         span.style = "display: none;";
  1030.                     }
  1031.                 }
  1032.  
  1033.                 anchor.href = url;
  1034.  
  1035.                 if (anchor.dataset?.testid === "UserUrl") {
  1036.                     const href = anchor.getAttribute("href");
  1037.                     const profileUrl = hasHttp(href) ? href : "https://" + href;
  1038.                     anchor.href = profileUrl;
  1039.                     verbose && console.log("[ujs][directLinks][profileUrl]", profileUrl);
  1040.  
  1041.                     // Restore if URL's text content is too long
  1042.                     if (anchor.textContent.endsWith("…")) {
  1043.                         anchor.href = shortUrl;
  1044.  
  1045.                         try {
  1046.                             const author = location.pathname.slice(1).match(/[^\/]+/)[0];
  1047.                             const expanded_url = await API.getUserInfo(author); // todo: make lazy
  1048.                             anchor.href = expanded_url;
  1049.                             Features.profileUrlCache.set(shortUrl, expanded_url);
  1050.                         } catch (err) {
  1051.                             verbose && console.error("[ujs]", err);
  1052.                         }
  1053.                     }
  1054.                 }
  1055.             }
  1056.             if (anchors.length) {
  1057.                 Features.handleTitle(Features.originalTitle);
  1058.             }
  1059.         }
  1060.  
  1061.         // Do NOT throttle it
  1062.         static expandSpoilers() {
  1063.             const main = document.querySelector("main[role=main]");
  1064.             if (!main) {
  1065.                 return;
  1066.             }
  1067.  
  1068.             if (!I18N.YES_VIEW_PROFILE) { // Unsupported lang, no YES_VIEW_PROFILE, SHOW_NUDITY, VIEW constants
  1069.                 return;
  1070.             }
  1071.  
  1072.             const a = main.querySelectorAll("[data-testid=primaryColumn] [role=button]");
  1073.             if (a) {
  1074.                 const elems = [...a];
  1075.                 const button = elems.find(el => el.textContent === I18N.YES_VIEW_PROFILE);
  1076.                 if (button) {
  1077.                     button.click();
  1078.                 }
  1079.  
  1080.                 // "Content warning: Nudity"
  1081.                 // "The Tweet author flagged this Tweet as showing sensitive content."
  1082.                 // "Show"
  1083.                 const buttonShow = elems.find(el => el.textContent === I18N.SHOW_NUDITY);
  1084.                 if (buttonShow) {
  1085.                     // const verifying = a.previousSibling.textContent.includes("Nudity"); // todo?
  1086.                     // if (verifying) {
  1087.                     buttonShow.click();
  1088.                     // }
  1089.                 }
  1090.             }
  1091.  
  1092.             // todo: expand spoiler commentary in photo view mode (.../photo/1)
  1093.             const b = main.querySelectorAll("article [role=presentation] div[role=button]");
  1094.             if (b) {
  1095.                 const elems = [...b];
  1096.                 const buttons = elems.filter(el => el.textContent === I18N.VIEW);
  1097.                 if (buttons.length) {
  1098.                     buttons.forEach(el => el.click());
  1099.                 }
  1100.             }
  1101.         }
  1102.  
  1103.         static hideSignUpSection() { // "New to Twitter?"
  1104.             if (!I18N.SIGNUP) {// Unsupported lang, no SIGNUP constant
  1105.                 return;
  1106.             }
  1107.             const elem = document.querySelector(`section[aria-label="${I18N.SIGNUP}"][role=region]`);
  1108.             if (elem) {
  1109.                 elem.parentNode.classList.add("ujs-hidden");
  1110.             }
  1111.         }
  1112.  
  1113.         // Call it once.
  1114.         // "Don’t miss what’s happening" if you are not logged in.
  1115.         // It looks that `#layers` is used only for this bar.
  1116.         static hideSignUpBottomBarAndMessages(doNotPlayVideosAutomatically) {
  1117.             if (doNotPlayVideosAutomatically) {
  1118.                 addCSS(`
  1119.                     #layers > div:nth-child(1) {
  1120.                         display: none;
  1121.                     }
  1122.                 `);
  1123.             } else {
  1124.                 addCSS(`
  1125.                     #layers > div:nth-child(1) {
  1126.                         height: 1px;
  1127.                         opacity: 0;
  1128.                     }
  1129.                 `);
  1130.             }
  1131.         }
  1132.  
  1133.         // "Trends for you"
  1134.         static hideTrends() {
  1135.             if (!I18N.TRENDS) { // Unsupported lang, no TRENDS constant
  1136.                 return;
  1137.             }
  1138.             addCSS(`
  1139.                 [aria-label="${I18N.TRENDS}"]
  1140.                 {
  1141.                     display: none;
  1142.                 }
  1143.             `);
  1144.         }
  1145.  
  1146.         static highlightVisitedLinks() {
  1147.             if (settings.highlightOnlySpecialVisitedLinks) {
  1148.                 addCSS(`
  1149.                     a[href^="http"]:visited {
  1150.                         color: darkorange !important;
  1151.                     }
  1152.                 `);
  1153.                 return;
  1154.             }
  1155.             addCSS(`
  1156.                 a:visited {
  1157.                     color: darkorange !important;
  1158.                 }
  1159.             `);
  1160.         }
  1161.  
  1162.         // todo split to two methods
  1163.         // todo fix it, currently it works questionably
  1164.         // not tested with non eng languages
  1165.         static footerHandled = false;
  1166.         static hideAndMoveFooter() { // "Terms of Service   Privacy Policy   Cookie Policy"
  1167.             let footer = document.querySelector(`main[role=main] nav[aria-label=${I18N.FOOTER}][role=navigation]`);
  1168.             const nav  = document.querySelector("nav[aria-label=Primary][role=navigation]"); // I18N."Primary" [?]
  1169.  
  1170.             if (footer) {
  1171.                 footer = footer.parentNode;
  1172.                 const separatorLine = footer.previousSibling;
  1173.  
  1174.                 if (Features.footerHandled) {
  1175.                     footer.remove();
  1176.                     separatorLine.remove();
  1177.                     return;
  1178.                 }
  1179.  
  1180.                 nav.append(separatorLine);
  1181.                 nav.append(footer);
  1182.                 footer.classList.add("ujs-show-on-hover");
  1183.                 separatorLine.classList.add("ujs-show-on-hover");
  1184.  
  1185.                 Features.footerHandled = true;
  1186.             }
  1187.         }
  1188.  
  1189.         static hideLoginPopup() { // When you are not logged in
  1190.             const targetNode = document.querySelector("html");
  1191.             const observerOptions = {
  1192.                 attributes: true,
  1193.             };
  1194.             const observer = new MutationObserver(callback);
  1195.             observer.observe(targetNode, observerOptions);
  1196.  
  1197.             function callback(mutationList, _observer) {
  1198.                 const html = document.querySelector("html");
  1199.                 verbose && console.log("[ujs][hideLoginPopup][mutationList]", mutationList);
  1200.                 // overflow-y: scroll; overscroll-behavior-y: none; font-size: 15px;                     // default
  1201.                 // overflow: hidden; overscroll-behavior-y: none; font-size: 15px; margin-right: 15px;   // popup
  1202.                 if (html.style["overflow"] === "hidden") {
  1203.                     html.style["overflow"] = "";
  1204.                     html.style["overflow-y"] = "scroll";
  1205.                     html.style["margin-right"] = "";
  1206.                 }
  1207.                 const popup = document.querySelector(`#layers div[data-testid="sheetDialog"]`);
  1208.                 if (popup) {
  1209.                     popup.closest(`div[role="dialog"]`).remove();
  1210.                     verbose && (document.title = "⚒" + document.title);
  1211.                     // observer.disconnect();
  1212.                 }
  1213.             }
  1214.         }
  1215.  
  1216.         static goFromMobileToMainSite() { // uncompleted
  1217.             if (location.href.startsWith("https://mobile.twitter.com/")) {
  1218.                 location.href = location.href.replace("https://mobile.twitter.com/", "https://twitter.com/");
  1219.             }
  1220.             // TODO: add #redirected, remove by timer // to prevent a potential infinity loop
  1221.         }
  1222.     }
  1223.  
  1224.     return Features;
  1225. }
  1226.  
  1227. function getStoreInfo() {
  1228.     const resultObj = {
  1229.         total: 0
  1230.     };
  1231.     for (const [name, lsKey] of Object.entries(StorageNames)) {
  1232.         const valueStr = localStorage.getItem(lsKey);
  1233.         if (valueStr) {
  1234.             try {
  1235.                 const value = JSON.parse(valueStr);
  1236.                 if (Array.isArray(value)) {
  1237.                     const size = new Set(value).size;
  1238.                     resultObj[name] = size;
  1239.                     resultObj.total += size;
  1240.                 }
  1241.             } catch (err) {
  1242.                 // ...
  1243.             }
  1244.         }
  1245.     }
  1246.     return resultObj;
  1247. }
  1248.  
  1249. // --- Twitter.RequiredCSS --- //
  1250. function getUserScriptCSS() {
  1251.     const labelText = I18N.IMAGE || "Image";
  1252.  
  1253.     // By default, the scroll is showed all time, since <html style="overflow-y: scroll;>,
  1254.     // so it works — no need to use `getScrollbarWidth` function from SO (13382516).
  1255.     const scrollbarWidth = window.innerWidth - document.body.offsetWidth;
  1256.  
  1257.     const css = `
  1258. .ujs-modal-wrapper .ujs-modal-settings {
  1259.   color: black;
  1260. }
  1261. .ujs-hidden {
  1262.     display: none;
  1263. }
  1264. .ujs-no-scroll {
  1265.     overflow-y: hidden;
  1266. }
  1267. .ujs-scroll-initial {
  1268.     overflow-y: initial!important;
  1269. }
  1270. .ujs-scrollbar-width-margin-right {
  1271.     margin-right: ${scrollbarWidth}px;
  1272. }
  1273.  
  1274. .ujs-show-on-hover:hover {
  1275.     opacity: 1;
  1276.     transition: opacity 1s ease-out 0.1s;
  1277. }
  1278. .ujs-show-on-hover {
  1279.     opacity: 0;
  1280.     transition: opacity 0.5s ease-out;
  1281. }
  1282.  
  1283. :root {
  1284.     --ujs-shadow-1: linear-gradient(to top, rgba(0,0,0,0.15), rgba(0,0,0,0.05));
  1285.     --ujs-shadow-2: linear-gradient(to top, rgba(0,0,0,0.25), rgba(0,0,0,0.05));
  1286.     --ujs-shadow-3: linear-gradient(to top, rgba(0,0,0,0.45), rgba(0,0,0,0.15));
  1287.     --ujs-shadow-4: linear-gradient(to top, rgba(0,0,0,0.55), rgba(0,0,0,0.25));
  1288.     --ujs-red:   #e0245e;
  1289.     --ujs-blue:  #1da1f2;
  1290.     --ujs-green: #4caf50;
  1291.     --ujs-gray:  #c2cbd0;
  1292.     --ujs-error: white;
  1293. }
  1294.  
  1295. .ujs-progress {
  1296.   background-image: linear-gradient(to right, var(--ujs-green) var(--progress), transparent 0%);
  1297. }
  1298.  
  1299. .ujs-shadow {
  1300.   background-image: var(--ujs-shadow-1);
  1301. }
  1302. .ujs-btn-download:hover .ujs-hover {
  1303.   background-image: var(--ujs-shadow-2);
  1304. }
  1305. .ujs-btn-download.ujs-downloading .ujs-shadow {
  1306.   background-image: var(--ujs-shadow-3);
  1307. }
  1308. .ujs-btn-download:active .ujs-shadow {
  1309.   background-image: var(--ujs-shadow-4);
  1310. }
  1311.  
  1312. .ujs-btn-download.ujs-downloaded.ujs-recently-downloaded {
  1313.     opacity: 0;
  1314. }
  1315.  
  1316. li[role="listitem"]:hover .ujs-btn-download {
  1317.     opacity: 1;
  1318. }
  1319. article[role=article]:hover .ujs-btn-download {
  1320.     opacity: 1;
  1321. }
  1322. div[aria-label="${labelText}"]:hover .ujs-btn-download {
  1323.     opacity: 1;
  1324. }
  1325. .ujs-btn-download.ujs-downloaded {
  1326.     opacity: 1;
  1327. }
  1328. .ujs-btn-download.ujs-downloading {
  1329.     opacity: 1;
  1330. }
  1331. [data-testid="videoComponent"]:hover + .ujs-btn-download {
  1332.     opacity: 1;
  1333. }
  1334. [data-testid="videoComponent"] + .ujs-btn-download:hover {
  1335.     opacity: 1;
  1336. }
  1337.  
  1338. .ujs-btn-download {
  1339.   cursor: pointer;
  1340.   top: 0.5em;
  1341.   left: 0.5em;
  1342.   position: absolute;
  1343.   opacity: 0;
  1344. }
  1345. .ujs-btn-common {
  1346.   width: 33px;
  1347.   height: 33px;
  1348.   border-radius: 0.3em;
  1349.   top: 0;
  1350.   position: absolute;
  1351.   border: 1px solid transparent;
  1352.   border-color: var(--ujs-gray);
  1353.   ${settings.addBorder ? "border: 2px solid white;" : "border-color: var(--ujs-gray);"}
  1354. }
  1355. .ujs-not-downloaded .ujs-btn-background {
  1356.   background: var(--ujs-red);
  1357. }
  1358.  
  1359. .ujs-already-downloaded .ujs-btn-background {
  1360.   background: var(--ujs-blue);
  1361. }
  1362.  
  1363. .ujs-btn-done {
  1364.   box-shadow: 0 0 6px var(--ujs-green);
  1365. }
  1366. .ujs-btn-error {
  1367.   box-shadow: 0 0 6px var(--ujs-red);
  1368. }
  1369.  
  1370. .ujs-downloaded .ujs-btn-background {
  1371.   background: var(--ujs-green);
  1372. }
  1373.  
  1374. .ujs-error .ujs-btn-background {
  1375.   background: var(--ujs-error);
  1376. }
  1377.  
  1378. .ujs-btn-error-text {
  1379.   display: flex;
  1380.   align-items: center;
  1381.   justify-content: center;
  1382.   color: black;
  1383.   font-size: 100%;
  1384. }`;
  1385.     return css.slice(1);
  1386. }
  1387.  
  1388. /*
  1389. Features depend on:
  1390.  
  1391. addRequiredCSS:     IMAGE
  1392.  
  1393. expandSpoilers:     YES_VIEW_PROFILE, SHOW_NUDITY, VIEW
  1394. handleTitle:        QUOTES,           ON_TWITTER,  TWITTER
  1395. hideSignUpSection:  SIGNUP
  1396. hideTrends:         TRENDS
  1397.  
  1398. [unused]
  1399. hideAndMoveFooter:  FOOTER
  1400. */
  1401.  
  1402. // --- Twitter.LangConstants --- //
  1403. function getLanguageConstants() { // todo: "de", "fr"
  1404.     const defaultQuotes = [`"`, `"`];
  1405.  
  1406.     const SUPPORTED_LANGUAGES = ["en",                     "ru",                     "es",                                 "zh",               "ja",                       ];
  1407.  
  1408.     // texts
  1409.     const VIEW                = ["View",                   "Посмотреть",             "Ver",                                "查看",             "表示",                      ];
  1410.     const YES_VIEW_PROFILE    = ["Yes, view profile",      "Да, посмотреть профиль", "Sí, ver perfil",                     "是，查看个人资料",   "プロフィールを表示する",       ];
  1411.     const SHOW_NUDITY         = ["Show",                   "Показать",               "Mostrar",                            "显示",              "表示",                     ];
  1412.  
  1413.     // aria-label texts
  1414.     const IMAGE               = ["Image",                  "Изображение",            "Imagen",                             "图像",              "画像",                     ];
  1415.     const SIGNUP              = ["Sign up",                "Зарегистрироваться",     "Regístrate",                         "注册",             "アカウント作成",              ];
  1416.     const TRENDS              = ["Timeline: Trending now", "Лента: Актуальные темы", "Cronología: Tendencias del momento", "时间线：当前趋势",   "タイムライン: トレンド",       ];
  1417.     const FOOTER              = ["Footer",                 "Нижний колонтитул",      "Pie de página",                      "页脚",             "フッター",                   ];
  1418.  
  1419.     // document.title "{AUTHOR}{ON_TWITTER} {QUOTES[0]}{TEXT}{QUOTES[1]} / {TWITTER}"
  1420.     const QUOTES              = [defaultQuotes,            [`«`, `»`],               defaultQuotes,                        defaultQuotes,      [`「`, `」`],                ];
  1421.     const ON_TWITTER          = [" on Twitter:",           " в Твиттере:",           " en Twitter:",                       " 在 Twitter:",      "さんはTwitterを使っています", ];
  1422.     const TWITTER             = ["Twitter",                "Твиттер",                "Twitter",                            "Twitter",          "Twitter",                  ];
  1423.  
  1424.     const lang = document.querySelector("html").getAttribute("lang");
  1425.     const langIndex = SUPPORTED_LANGUAGES.indexOf(lang);
  1426.  
  1427.     return {
  1428.         SUPPORTED_LANGUAGES,
  1429.         VIEW: VIEW[langIndex],
  1430.         YES_VIEW_PROFILE: YES_VIEW_PROFILE[langIndex],
  1431.         SHOW_NUDITY: SHOW_NUDITY[langIndex],
  1432.         IMAGE: IMAGE[langIndex],
  1433.         SIGNUP: SIGNUP[langIndex],
  1434.         TRENDS: TRENDS[langIndex],
  1435.         FOOTER: FOOTER[langIndex],
  1436.         QUOTES: QUOTES[langIndex],
  1437.         ON_TWITTER: ON_TWITTER[langIndex],
  1438.         TWITTER: TWITTER[langIndex],
  1439.     }
  1440. }
  1441.  
  1442. // --- Twitter.Tweet --- //
  1443. function hoistTweet() {
  1444.     class Tweet {
  1445.         constructor({elem, url}) {
  1446.             if (url) {
  1447.                 this.elem = null;
  1448.                 this.url = url;
  1449.             } else {
  1450.                 this.elem = elem;
  1451.                 this.url = Tweet.getUrl(elem);
  1452.             }
  1453.         }
  1454.  
  1455.         static of(innerElem) {
  1456.             // Workaround for media from a quoted tweet
  1457.             const url = innerElem.closest(`a[href^="/"]`)?.href;
  1458.             if (url && url.includes("/status/")) {
  1459.                 return new Tweet({url});
  1460.             }
  1461.  
  1462.             const elem = innerElem.closest(`[data-testid="tweet"]`);
  1463.             if (!elem) { // opened image
  1464.                 verbose && console.log("[ujs][Tweet.of]", "No-tweet elem");
  1465.             }
  1466.             return new Tweet({elem});
  1467.         }
  1468.  
  1469.         static getUrl(elem) {
  1470.             if (!elem) {
  1471.                 verbose && console.log("[ujs][Tweet.getUrl]", "Opened full screen image");
  1472.                 return location.href;
  1473.             }
  1474.             const quotedTweetAnchorEl = [...elem.querySelectorAll("a")].find(el => {
  1475.                 return el.childNodes[0]?.nodeName === "TIME";
  1476.             });
  1477.             if (quotedTweetAnchorEl) {
  1478.                 verbose && console.log("[ujs][Tweet.getUrl]", "Quoted/Re Tweet");
  1479.                 return quotedTweetAnchorEl.href;
  1480.             }
  1481.             verbose && console.log("[ujs][Tweet.getUrl]", "Unreachable"); // Is it used?
  1482.             return location.href;
  1483.         }
  1484.  
  1485.         get author() {
  1486.             return this.url.match(/(?<=twitter\.com\/).+?(?=\/)/)?.[0];
  1487.         }
  1488.  
  1489.         get id() {
  1490.             return this.url.match(/(?<=\/status\/)\d+/)?.[0];
  1491.         }
  1492.     }
  1493.  
  1494.     return Tweet;
  1495. }
  1496.  
  1497. // --- Twitter.API --- //
  1498. function hoistAPI() {
  1499.     class API {
  1500.         static guestToken = getCookie("gt");
  1501.         static csrfToken  = getCookie("ct0");  // todo: lazy — not available at the first run
  1502.         // Guest/Suspended account Bearer token
  1503.         static guestAuthorization = "Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA";
  1504.  
  1505.         // Seems to be outdated at 2022.05
  1506.         static async _requestBearerToken() {
  1507.             const scriptSrc = [...document.querySelectorAll("script")]
  1508.                 .find(el => el.src.match(/https:\/\/abs\.twimg\.com\/responsive-web\/client-web\/main[\w.]*\.js/)).src;
  1509.  
  1510.             let text;
  1511.             try {
  1512.                 text = await (await fetch(scriptSrc)).text();
  1513.             } catch (err) {
  1514.                 /* verbose && */ console.error("[ujs][_requestBearerToken][scriptSrc]", scriptSrc);
  1515.                 /* verbose && */ console.error("[ujs][_requestBearerToken]", err);
  1516.                 throw err;
  1517.             }
  1518.  
  1519.             const authorizationKey = text.match(/(?<=")AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D.+?(?=")/)[0];
  1520.             const authorization = `Bearer ${authorizationKey}`;
  1521.  
  1522.             return authorization;
  1523.         }
  1524.  
  1525.         static async getAuthorization() {
  1526.             if (!API.authorization) {
  1527.                 API.authorization = await API._requestBearerToken();
  1528.             }
  1529.             return API.authorization;
  1530.         }
  1531.  
  1532.         static requestCache = new Map();
  1533.         static vacuumCache() {
  1534.             if (API.requestCache.size > 16) {
  1535.                 API.requestCache.delete(API.requestCache.keys().next().value);
  1536.             }
  1537.         }
  1538.  
  1539.         static async apiRequest(url) {
  1540.             const _url = url.toString();
  1541.             verbose && console.log("[ujs][apiRequest]", _url);
  1542.  
  1543.             if (API.requestCache.has(_url)) {
  1544.                 verbose && console.log("[ujs][apiRequest] Use cached API request", _url);
  1545.                 return API.requestCache.get(_url);
  1546.             }
  1547.  
  1548.             // Hm... it is always the same. Even for a logged user.
  1549.             // const authorization = API.guestToken ? API.guestAuthorization : await API.getAuthorization();
  1550.             const authorization = API.guestAuthorization;
  1551.  
  1552.             // for debug
  1553.             verbose && sessionStorage.setItem("guestAuthorization", API.guestAuthorization);
  1554.             verbose && sessionStorage.setItem("authorization", API.authorization);
  1555.             verbose && sessionStorage.setItem("x-csrf-token", API.csrfToken);
  1556.             verbose && sessionStorage.setItem("x-guest-token", API.guestToken);
  1557.  
  1558.             const headers = new Headers({
  1559.                 authorization,
  1560.                 "x-csrf-token": API.csrfToken,
  1561.                 "x-twitter-client-language": "en",
  1562.                 "x-twitter-active-user": "yes"
  1563.             });
  1564.             if (API.guestToken) {
  1565.                 headers.append("x-guest-token", API.guestToken);
  1566.             } else { // may be skipped
  1567.                 headers.append("x-twitter-auth-type", "OAuth2Session");
  1568.             }
  1569.  
  1570.             let json;
  1571.             try {
  1572.                 const response = await fetch(_url, {headers});
  1573.                 json = await response.json();
  1574.                 if (response.ok) {
  1575.                     verbose && console.log("[ujs][apiRequest]", "Cache API request", _url);
  1576.                     API.vacuumCache();
  1577.                     API.requestCache.set(_url, json);
  1578.                 }
  1579.             } catch (err) {
  1580.                 /* verbose && */ console.error("[ujs][apiRequest]", _url);
  1581.                 /* verbose && */ console.error("[ujs][apiRequest]", err);
  1582.                 throw err;
  1583.             }
  1584.  
  1585.             verbose && console.log("[ujs][apiRequest][json]", JSON.stringify(json, null, " "));
  1586.             // 429 - [{code: 88, message: "Rate limit exceeded"}] — for suspended accounts
  1587.  
  1588.             return json;
  1589.         }
  1590.  
  1591.         static async getTweetJson(tweetId) {
  1592.             const url = API.createTweetJsonEndpointUrl(tweetId);
  1593.             const json = await API.apiRequest(url);
  1594.             verbose && console.log("[ujs][getTweetJson]", json, JSON.stringify(json));
  1595.             return json;
  1596.         }
  1597.  
  1598.         /** return {tweetResult, tweetLegacy, tweetUser} */
  1599.         static parseTweetJson(json, tweetId) {
  1600.             const instruction = json.data.threaded_conversation_with_injections_v2.instructions.find(ins => ins.type === "TimelineAddEntries");
  1601.             const tweetEntry  = instruction.entries.find(ins => ins.entryId === "tweet-" + tweetId);
  1602.             let tweetResult = tweetEntry.content.itemContent.tweet_results.result; // {"__typename": "Tweet"} // or {"__typename": "TweetWithVisibilityResults", tweet: {...}} (1641596499351212033)
  1603.             if (tweetResult.tweet) {
  1604.                 tweetResult = tweetResult.tweet;
  1605.             }
  1606.             verbose && console.log("[ujs][parseTweetJson] tweetResult", tweetResult, JSON.stringify(tweetResult));
  1607.             const tweetUser   = tweetResult.core.user_results.result; // {"__typename": "User"}
  1608.             const tweetLegacy = tweetResult.legacy;
  1609.             verbose && console.log("[ujs][parseTweetJson] tweetLegacy", tweetLegacy, JSON.stringify(tweetLegacy));
  1610.             verbose && console.log("[ujs][parseTweetJson] tweetUser", tweetUser, JSON.stringify(tweetUser));
  1611.             return {tweetResult, tweetLegacy, tweetUser};
  1612.         }
  1613.  
  1614.         /**
  1615.          * @typedef {Object} TweetMediaEntry
  1616.          * @property {string} screen_name - "kreamu"
  1617.          * @property {string} tweet_id - "1687962620173733890"
  1618.          * @property {string} download_url - "https://pbs.twimg.com/media/FWYvXNMXgAA7se2?format=jpg&name=orig"
  1619.          * @property {"photo" | "video"} type - "photo"
  1620.          * @property {"photo" | "video" | "animated_gif"} type_original - "photo"
  1621.          * @property {number} index - 0
  1622.          * @property {number} type_index - 0
  1623.          * @property {number} type_index_original - 0
  1624.          * @property {string} preview_url - "https://pbs.twimg.com/media/FWYvXNMXgAA7se2.jpg"
  1625.          * @property {string} media_id  -   "1687949851516862464"
  1626.          * @property {string} media_key - "7_1687949851516862464"
  1627.          * @property {string} expanded_url - "https://twitter.com/kreamu/status/1687962620173733890/video/1"
  1628.          * @property {string} short_expanded_url - "pic.twitter.com/KeXR8T910R"
  1629.          * @property {string} short_tweet_url - "https://t.co/KeXR8T910R"
  1630.          * @property {string} tweet_text - "Tracer providing some In-flight entertainment"
  1631.          */
  1632.         /** @returns {TweetMediaEntry[]} */
  1633.         static parseTweetLegacyMedias(tweetResult, tweetLegacy, tweetUser) {
  1634.             if (!tweetLegacy.extended_entities || !tweetLegacy.extended_entities.media) {
  1635.                 return [];
  1636.             }
  1637.  
  1638.             const medias = [];
  1639.             const typeIndex = {}; // "photo", "video", "animated_gif"
  1640.             let index = -1;
  1641.  
  1642.             for (const media of tweetLegacy.extended_entities.media) {
  1643.                 index++;
  1644.                 let   type          = media.type;
  1645.                 const type_original = media.type;
  1646.                 typeIndex[type] = (typeIndex[type] === undefined ? -1 : typeIndex[type]) + 1;
  1647.                 if (type === "animated_gif") {
  1648.                     type = "video";
  1649.                     typeIndex[type] = (typeIndex[type] === undefined ? -1 : typeIndex[type]) + 1;
  1650.                 }
  1651.  
  1652.                 let download_url;
  1653.                 if (media.video_info) {
  1654.                     const videoInfo = media.video_info.variants
  1655.                         .filter(el => el.bitrate !== undefined) // if content_type: "application/x-mpegURL" // .m3u8
  1656.                         .reduce((acc, cur) => cur.bitrate > acc.bitrate ? cur : acc);
  1657.                     download_url = videoInfo.url;
  1658.                 } else {
  1659.                     if (media.media_url_https.includes("?format=")) {
  1660.                         download_url = media.media_url_https;
  1661.                     } else {
  1662.                         // "https://pbs.twimg.com/media/FWYvXNMXgAA7se2.jpg" -> "https://pbs.twimg.com/media/FWYvXNMXgAA7se2?format=jpg&name=orig"
  1663.                         const parts = media.media_url_https.split(".");
  1664.                         const ext = parts[parts.length - 1];
  1665.                         const urlPart = parts.slice(0, -1).join(".");
  1666.                         download_url = `${urlPart}?format=${ext}&name=orig`;
  1667.                     }
  1668.                 }
  1669.  
  1670.                 const screen_name   = tweetUser.legacy.screen_name;              // "kreamu"
  1671.                 const tweet_id      = tweetResult.rest_id || tweetLegacy.id_str; // "1687962620173733890"
  1672.  
  1673.                 const type_index          = typeIndex[type];          // 0
  1674.                 const type_index_original = typeIndex[type_original]; // 0
  1675.  
  1676.                 const preview_url = media.media_url_https; // "https://pbs.twimg.com/ext_tw_video_thumb/1687949851516862464/pu/img/mTBjwz--nylYk5Um.jpg"
  1677.                 const media_id    = media.id_str;          //   "1687949851516862464"
  1678.                 const media_key   = media.media_key;       // "7_1687949851516862464"
  1679.  
  1680.                 const expanded_url       = media.expanded_url; // "https://twitter.com/kreamu/status/1687962620173733890/video/1"
  1681.                 const short_expanded_url = media.display_url;  // "pic.twitter.com/KeXR8T910R"
  1682.                 const short_tweet_url    = media.url;          // "https://t.co/KeXR8T910R"
  1683.                 const tweet_text = tweetLegacy.full_text       // "Tracer providing some In-flight entertainment https://t.co/KeXR8T910R"
  1684.                                               .replace(` ${media.url}`, "");
  1685.  
  1686.                 // {screen_name, tweet_id, download_url, preview_url, type_index}
  1687.                 /** @type {TweetMediaEntry} */
  1688.                 const mediaEntry = {
  1689.                     screen_name, tweet_id,
  1690.                     download_url, type, type_original, index,
  1691.                     type_index, type_index_original,
  1692.                     preview_url, media_id, media_key,
  1693.                     expanded_url, short_expanded_url, short_tweet_url, tweet_text,
  1694.                 };
  1695.                 medias.push(mediaEntry);
  1696.             }
  1697.  
  1698.             verbose && console.log("[ujs][parseTweetLegacyMedias] medias", medias);
  1699.             return medias;
  1700.         }
  1701.  
  1702.         static async getTweetMedias(tweetId) {
  1703.             const tweetJson = await API.getTweetJson(tweetId);
  1704.             const {tweetResult, tweetLegacy, tweetUser} = API.parseTweetJson(tweetJson, tweetId);
  1705.  
  1706.             let result = API.parseTweetLegacyMedias(tweetResult, tweetLegacy, tweetUser);
  1707.  
  1708.             if (tweetResult.quoted_status_result) {
  1709.                 const tweetResultQuoted = tweetResult.quoted_status_result.result;
  1710.                 const tweetLegacyQuoted = tweetResultQuoted.legacy;
  1711.                 const tweetUserQuoted   = tweetResultQuoted.core.user_results.result;
  1712.                 result = [...result, ...API.parseTweetLegacyMedias(tweetResultQuoted, tweetLegacyQuoted, tweetUserQuoted)];
  1713.             }
  1714.  
  1715.             return result;
  1716.         }
  1717.  
  1718.  
  1719.         // todo: keep `queryId` updated
  1720.         // https://github.com/fa0311/TwitterInternalAPIDocument/blob/master/docs/json/API.json
  1721.         static TweetDetailQueryId      = "xOhkmRac04YFZmOzU9PJHg"; // TweetDetail      (for videos)
  1722.         static UserByScreenNameQueryId = "G3KGOASz96M-Qu0nwmGXNg"; // UserByScreenName (for the direct user profile url)
  1723.  
  1724.         static createTweetJsonEndpointUrl(tweetId) {
  1725.             const variables = {
  1726.                 "focalTweetId": tweetId,
  1727.                 "with_rux_injections": false,
  1728.                 "includePromotedContent": true,
  1729.                 "withCommunity": true,
  1730.                 "withQuickPromoteEligibilityTweetFields": true,
  1731.                 "withBirdwatchNotes": true,
  1732.                 "withVoice": true,
  1733.                 "withV2Timeline": true
  1734.             };
  1735.             const features = {
  1736.                 "rweb_lists_timeline_redesign_enabled": true,
  1737.                 "responsive_web_graphql_exclude_directive_enabled": true,
  1738.                 "verified_phone_label_enabled": false,
  1739.                 "creator_subscriptions_tweet_preview_api_enabled": true,
  1740.                 "responsive_web_graphql_timeline_navigation_enabled": true,
  1741.                 "responsive_web_graphql_skip_user_profile_image_extensions_enabled": false,
  1742.                 "tweetypie_unmention_optimization_enabled": true,
  1743.                 "responsive_web_edit_tweet_api_enabled": true,
  1744.                 "graphql_is_translatable_rweb_tweet_is_translatable_enabled": true,
  1745.                 "view_counts_everywhere_api_enabled": true,
  1746.                 "longform_notetweets_consumption_enabled": true,
  1747.                 "responsive_web_twitter_article_tweet_consumption_enabled": false,
  1748.                 "tweet_awards_web_tipping_enabled": false,
  1749.                 "freedom_of_speech_not_reach_fetch_enabled": true,
  1750.                 "standardized_nudges_misinfo": true,
  1751.                 "tweet_with_visibility_results_prefer_gql_limited_actions_policy_enabled": true,
  1752.                 "longform_notetweets_rich_text_read_enabled": true,
  1753.                 "longform_notetweets_inline_media_enabled": true,
  1754.                 "responsive_web_media_download_video_enabled": false,
  1755.                 "responsive_web_enhance_cards_enabled": false
  1756.             };
  1757.             const fieldToggles = {
  1758.                 "withArticleRichContentState": false
  1759.             };
  1760.  
  1761.             const urlBase = `https://twitter.com/i/api/graphql/${API.TweetDetailQueryId}/TweetDetail`;
  1762.             const urlObj = new URL(urlBase);
  1763.             urlObj.searchParams.set("variables", JSON.stringify(variables));
  1764.             urlObj.searchParams.set("features", JSON.stringify(features));
  1765.             urlObj.searchParams.set("fieldToggles", JSON.stringify(fieldToggles));
  1766.             const url = urlObj.toString();
  1767.             return url;
  1768.         }
  1769.  
  1770.         static async getUserInfo(username) {
  1771.             const variables = JSON.stringify({
  1772.                 "screen_name": username,
  1773.                 "withSafetyModeUserFields": true,
  1774.                 "withSuperFollowsUserFields": true
  1775.             });
  1776.             const url = `https://twitter.com/i/api/graphql/${API.UserByScreenNameQueryId}/UserByScreenName?variables=${encodeURIComponent(variables)}`;
  1777.             const json = await API.apiRequest(url);
  1778.             verbose && console.log("[ujs][getUserInfo][json]", json);
  1779.             return json.data.user.result.legacy.entities.url?.urls[0].expanded_url;
  1780.         }
  1781.     }
  1782.  
  1783.     return API;
  1784. }
  1785.  
  1786. function getHistoryHelper() {
  1787.     function migrateLocalStore() {
  1788.         // 2023.07.05 // todo: uncomment after two+ months
  1789.         // Currently I disable it for cases if some browser's tabs uses the old version of the script.
  1790.         // const migrated = localStorage.getItem(StorageNames.migrated);
  1791.         // if (migrated === "true") {
  1792.         //     return;
  1793.         // }
  1794.  
  1795.         const newToOldNameMap = [
  1796.             [StorageNames.settings,                StorageNamesOld.settings],
  1797.             [StorageNames.settingsImageHistoryBy,  StorageNamesOld.settingsImageHistoryBy],
  1798.             [StorageNames.downloadedImageNames,    StorageNamesOld.downloadedImageNames],
  1799.             [StorageNames.downloadedImageTweetIds, StorageNamesOld.downloadedImageTweetIds],
  1800.             [StorageNames.downloadedVideoTweetIds, StorageNamesOld.downloadedVideoTweetIds],
  1801.         ];
  1802.  
  1803.         /**
  1804.          * @param {string} newName
  1805.          * @param {string} oldName
  1806.          * @param {string} value
  1807.          */
  1808.         function setValue(newName, oldName, value) {
  1809.             try {
  1810.                 localStorage.setItem(newName, value);
  1811.             } catch (err) {
  1812.                 localStorage.removeItem(oldName); // if there is no space ("exceeded the quota")
  1813.                 localStorage.setItem(newName, value);
  1814.             }
  1815.             localStorage.removeItem(oldName);
  1816.         }
  1817.  
  1818.         function mergeOldWithNew({newName, oldName}) {
  1819.             const oldValueStr = localStorage.getItem(oldName);
  1820.             if (oldValueStr === null) {
  1821.                 return;
  1822.             }
  1823.             const newValueStr = localStorage.getItem(newName);
  1824.             if (newValueStr === null) {
  1825.                 setValue(newName, oldName, oldValueStr);
  1826.                 return;
  1827.             }
  1828.             try {
  1829.                 const oldValue = JSON.parse(oldValueStr);
  1830.                 const newValue = JSON.parse(newValueStr);
  1831.                 if (Array.isArray(oldValue) && Array.isArray(newValue)) {
  1832.                     const resultArray = [...new Set([...newValue, ...oldValue])];
  1833.                     const resultArrayStr = JSON.stringify(resultArray);
  1834.                     setValue(newName, oldName, resultArrayStr);
  1835.                 }
  1836.             } catch (err) {
  1837.                 // return;
  1838.             }
  1839.         }
  1840.  
  1841.         for (const [newName, oldName] of newToOldNameMap) {
  1842.             mergeOldWithNew({newName, oldName});
  1843.         }
  1844.         // localStorage.setItem(StorageNames.migrated, "true");
  1845.     }
  1846.  
  1847.     function exportHistory(onDone) {
  1848.         const exportObject = [
  1849.             StorageNames.settings,
  1850.             StorageNames.settingsImageHistoryBy,
  1851.             StorageNames.downloadedImageNames,    // only if "settingsImageHistoryBy" === "IMAGE_NAME" (by default)
  1852.             StorageNames.downloadedImageTweetIds, // only if "settingsImageHistoryBy" === "TWEET_ID" (need to set manually with DevTools)
  1853.             StorageNames.downloadedVideoTweetIds,
  1854.         ].reduce((acc, name) => {
  1855.             const valueStr = localStorage.getItem(name);
  1856.             if (valueStr === null) {
  1857.                 return acc;
  1858.             }
  1859.             let value = JSON.parse(valueStr);
  1860.             if (Array.isArray(value)) {
  1861.                 value = [...new Set(value)];
  1862.             }
  1863.             acc[name] = value;
  1864.             return acc;
  1865.         }, {});
  1866.         const browserName = localStorage.getItem(StorageNames.browserName) || getBrowserName();
  1867.         const browserLine = browserName ? "-" + browserName : "";
  1868.  
  1869.         downloadBlob(new Blob([toLineJSON(exportObject, true)]), `ujs-twitter-click-n-save-export-${dateToDayDateString(new Date())}${browserLine}.json`);
  1870.         onDone();
  1871.     }
  1872.  
  1873.     function verify(jsonObject) {
  1874.         if (Array.isArray(jsonObject)) {
  1875.             throw new Error("Wrong object! JSON contains an array.");
  1876.         }
  1877.         if (Object.keys(jsonObject).some(key => !key.startsWith("ujs-twitter-click-n-save"))) {
  1878.             throw new Error("Wrong object! The keys should start with 'ujs-twitter-click-n-save'.");
  1879.         }
  1880.     }
  1881.  
  1882.     function importHistory(onDone, onError) {
  1883.         const importInput = document.createElement("input");
  1884.         importInput.type = "file";
  1885.         importInput.accept = "application/json";
  1886.         importInput.style.display = "none";
  1887.         document.body.prepend(importInput);
  1888.         importInput.addEventListener("change", async _event => {
  1889.             let json;
  1890.             try {
  1891.                 json = JSON.parse(await importInput.files[0].text());
  1892.                 verify(json);
  1893.  
  1894.                 Object.entries(json).forEach(([key, value]) => {
  1895.                     if (Array.isArray(value)) {
  1896.                         value = [...new Set(value)];
  1897.                     }
  1898.                     localStorage.setItem(key, JSON.stringify(value));
  1899.                 });
  1900.                 onDone();
  1901.             } catch (err) {
  1902.                 onError(err);
  1903.             } finally {
  1904.                 await sleep(1000);
  1905.                 importInput.remove();
  1906.             }
  1907.         });
  1908.         importInput.click();
  1909.     }
  1910.  
  1911.     function mergeHistory(onDone, onError) { // Only merges arrays
  1912.         const mergeInput = document.createElement("input");
  1913.         mergeInput.type = "file";
  1914.         mergeInput.accept = "application/json";
  1915.         mergeInput.style.display = "none";
  1916.         document.body.prepend(mergeInput);
  1917.         mergeInput.addEventListener("change", async _event => {
  1918.             let json;
  1919.             try {
  1920.                 json = JSON.parse(await mergeInput.files[0].text());
  1921.                 verify(json);
  1922.                 Object.entries(json).forEach(([key, value]) => {
  1923.                     if (!Array.isArray(value)) {
  1924.                         return;
  1925.                     }
  1926.                     const existedValue = JSON.parse(localStorage.getItem(key));
  1927.                     if (Array.isArray(existedValue)) {
  1928.                         const resultValue = [...new Set([...existedValue, ...value])];
  1929.                         localStorage.setItem(key, JSON.stringify(resultValue));
  1930.                     } else {
  1931.                         localStorage.setItem(key, JSON.stringify(value));
  1932.                     }
  1933.                 });
  1934.                 onDone();
  1935.             } catch (err) {
  1936.                 onError(err);
  1937.             } finally {
  1938.                 await sleep(1000);
  1939.                 mergeInput.remove();
  1940.             }
  1941.         });
  1942.         mergeInput.click();
  1943.     }
  1944.  
  1945.     return {exportHistory, importHistory, mergeHistory, migrateLocalStore};
  1946. }
  1947.  
  1948. // ---------------------------------------------------------------------------------------------------------------------
  1949. // ---------------------------------------------------------------------------------------------------------------------
  1950. // --- Common Utils --- //
  1951.  
  1952. // --- LocalStorage util class --- //
  1953. function hoistLS(settings = {}) {
  1954.     const {
  1955.         verbose, // debug "messages" in the document.title
  1956.     } = settings;
  1957.  
  1958.     class LS {
  1959.         constructor(name) {
  1960.             this.name = name;
  1961.         }
  1962.         getItem(defaultValue) {
  1963.             return LS.getItem(this.name, defaultValue);
  1964.         }
  1965.         setItem(value) {
  1966.             LS.setItem(this.name, value);
  1967.         }
  1968.         removeItem() {
  1969.             LS.removeItem(this.name);
  1970.         }
  1971.         async pushItem(value) {  // array method
  1972.             await LS.pushItem(this.name, value);
  1973.         }
  1974.         async popItem(value) {   // array method
  1975.             await LS.popItem(this.name, value);
  1976.         }
  1977.         hasItem(value) {         // array method
  1978.             return LS.hasItem(this.name, value);
  1979.         }
  1980.  
  1981.         static getItem(name, defaultValue) {
  1982.             const value = localStorage.getItem(name);
  1983.             if (value === undefined) {
  1984.                 return undefined;
  1985.             }
  1986.             if (value === null) { // when there is no such item
  1987.                 LS.setItem(name, defaultValue);
  1988.                 return defaultValue;
  1989.             }
  1990.             return JSON.parse(value);
  1991.         }
  1992.         static setItem(name, value) {
  1993.             localStorage.setItem(name, JSON.stringify(value));
  1994.         }
  1995.         static removeItem(name) {
  1996.             localStorage.removeItem(name);
  1997.         }
  1998.         static async pushItem(name, value) {
  1999.             const array = LS.getItem(name, []);
  2000.             array.push(value);
  2001.             LS.setItem(name, array);
  2002.  
  2003.             //sanity check
  2004.             await sleep(50);
  2005.             if (!LS.hasItem(name, value)) {
  2006.                 if (verbose) {
  2007.                     document.title = "🟥" + document.title;
  2008.                 }
  2009.                 await LS.pushItem(name, value);
  2010.             }
  2011.         }
  2012.         static async popItem(name, value) { // remove from an array
  2013.             const array = LS.getItem(name, []);
  2014.             if (array.indexOf(value) !== -1) {
  2015.                 array.splice(array.indexOf(value), 1);
  2016.                 LS.setItem(name, array);
  2017.  
  2018.                 //sanity check
  2019.                 await sleep(50);
  2020.                 if (LS.hasItem(name, value)) {
  2021.                     if (verbose) {
  2022.                         document.title = "🟨" + document.title;
  2023.                     }
  2024.                     await LS.popItem(name, value);
  2025.                 }
  2026.             }
  2027.         }
  2028.         static hasItem(name, value) { // has in array
  2029.             const array = LS.getItem(name, []);
  2030.             return array.indexOf(value) !== -1;
  2031.         }
  2032.     }
  2033.  
  2034.     return LS;
  2035. }
  2036.  
  2037. // --- Just groups them in a function for the convenient code looking --- //
  2038. function getUtils({verbose}) {
  2039.     function sleep(time) {
  2040.         return new Promise(resolve => setTimeout(resolve, time));
  2041.     }
  2042.  
  2043.     async function fetchResource(url, onProgress = props => console.log(props)) {
  2044.         try {
  2045.             /** @type {Response} */
  2046.             let response = await fetch(url, {
  2047.                 // cache: "force-cache",
  2048.             });
  2049.             const lastModifiedDateSeconds = response.headers.get("last-modified");
  2050.             const contentType = response.headers.get("content-type");
  2051.  
  2052.             const lastModifiedDate = dateToDayDateString(lastModifiedDateSeconds);
  2053.             const extension = contentType ? extensionFromMime(contentType) : null;
  2054.  
  2055.             if (onProgress) {
  2056.                 response = responseProgressProxy(response, onProgress);
  2057.             }
  2058.  
  2059.             const blob = await response.blob();
  2060.  
  2061.             // https://pbs.twimg.com/media/AbcdEFgijKL01_9?format=jpg&name=orig                                     -> AbcdEFgijKL01_9
  2062.             // https://pbs.twimg.com/ext_tw_video_thumb/1234567890123456789/pu/img/Ab1cd2345EFgijKL.jpg?name=orig   -> Ab1cd2345EFgijKL.jpg
  2063.             // https://video.twimg.com/ext_tw_video/1234567890123456789/pu/vid/946x720/Ab1cd2345EFgijKL.mp4?tag=10  -> Ab1cd2345EFgijKL.mp4
  2064.             const _url = new URL(url);
  2065.             const {filename} = (_url.origin + _url.pathname).match(/(?<filename>[^\/]+$)/).groups;
  2066.  
  2067.             const {name} = filename.match(/(?<name>^[^.]+)/).groups;
  2068.             return {blob, lastModifiedDate, contentType, extension, name, status: response.status};
  2069.         } catch (error) {
  2070.             verbose && console.error("[ujs][fetchResource]", url);
  2071.             verbose && console.error("[ujs][fetchResource]", error);
  2072.             throw error;
  2073.         }
  2074.     }
  2075.  
  2076.     function extensionFromMime(mimeType) {
  2077.         let extension = mimeType.match(/(?<=\/).+/)[0];
  2078.         extension = extension === "jpeg" ? "jpg" : extension;
  2079.         return extension;
  2080.     }
  2081.  
  2082.     // the original download url will be posted as hash of the blob url, so you can check it in the download manager's history
  2083.     function downloadBlob(blob, name, url) {
  2084.         const anchor = document.createElement("a");
  2085.         anchor.setAttribute("download", name || "");
  2086.         const blobUrl = URL.createObjectURL(blob);
  2087.         anchor.href = blobUrl + (url ? ("#" + url) : "");
  2088.         anchor.click();
  2089.         setTimeout(() => URL.revokeObjectURL(blobUrl), 30000);
  2090.     }
  2091.  
  2092.     // "Sun, 10 Jan 2021 22:22:22 GMT" -> "2021.01.10"
  2093.     function dateToDayDateString(dateValue, utc = true) {
  2094.         const _date = new Date(dateValue);
  2095.         function pad(str) {
  2096.             return str.toString().padStart(2, "0");
  2097.         }
  2098.         const _utc = utc ? "UTC" : "";
  2099.         const year  = _date[`get${_utc}FullYear`]();
  2100.         const month = _date[`get${_utc}Month`]() + 1;
  2101.         const date  = _date[`get${_utc}Date`]();
  2102.  
  2103.         return year + "." + pad(month) + "." + pad(date);
  2104.     }
  2105.  
  2106.     function addCSS(css) {
  2107.         const styleElem = document.createElement("style");
  2108.         styleElem.textContent = css;
  2109.         document.body.append(styleElem);
  2110.         return styleElem;
  2111.     }
  2112.  
  2113.     function getCookie(name) {
  2114.         verbose && console.log("[ujs][getCookie]", document.cookie);
  2115.         const regExp = new RegExp(`(?<=${name}=)[^;]+`);
  2116.         return document.cookie.match(regExp)?.[0];
  2117.     }
  2118.  
  2119.     function throttle(runnable, time = 50) {
  2120.         let waiting = false;
  2121.         let queued = false;
  2122.         let context;
  2123.         let args;
  2124.  
  2125.         return function() {
  2126.             if (!waiting) {
  2127.                 waiting = true;
  2128.                 setTimeout(function() {
  2129.                     if (queued) {
  2130.                         runnable.apply(context, args);
  2131.                         context = args = undefined;
  2132.                     }
  2133.                     waiting = queued = false;
  2134.                 }, time);
  2135.                 return runnable.apply(this, arguments);
  2136.             } else {
  2137.                 queued = true;
  2138.                 context = this;
  2139.                 args = arguments;
  2140.             }
  2141.         }
  2142.     }
  2143.  
  2144.     function throttleWithResult(func, time = 50) {
  2145.         let waiting = false;
  2146.         let args;
  2147.         let context;
  2148.         let timeout;
  2149.         let promise;
  2150.  
  2151.         return async function() {
  2152.             if (!waiting) {
  2153.                 waiting = true;
  2154.                 timeout = new Promise(async resolve => {
  2155.                     await sleep(time);
  2156.                     waiting = false;
  2157.                     resolve();
  2158.                 });
  2159.                 return func.apply(this, arguments);
  2160.             } else {
  2161.                 args = arguments;
  2162.                 context = this;
  2163.             }
  2164.  
  2165.             if (!promise) {
  2166.                 promise = new Promise(async resolve => {
  2167.                     await timeout;
  2168.                     const result = func.apply(context, args);
  2169.                     args = context = promise = undefined;
  2170.                     resolve(result);
  2171.                 });
  2172.             }
  2173.             return promise;
  2174.         }
  2175.     }
  2176.  
  2177.     function xpath(path, node = document) {
  2178.         let xPathResult = document.evaluate(path, node, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null);
  2179.         return xPathResult.singleNodeValue;
  2180.     }
  2181.     function xpathAll(path, node = document) {
  2182.         let xPathResult = document.evaluate(path, node, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE, null);
  2183.         const nodes = [];
  2184.         try {
  2185.             let node = xPathResult.iterateNext();
  2186.  
  2187.             while (node) {
  2188.                 nodes.push(node);
  2189.                 node = xPathResult.iterateNext();
  2190.             }
  2191.             return nodes;
  2192.         } catch (err) {
  2193.             // todo need investigate it
  2194.             console.error(err); // "The document has mutated since the result was returned."
  2195.             return [];
  2196.         }
  2197.     }
  2198.  
  2199.     const identityContentEncodings = new Set([null, "identity", "no encoding"]);
  2200.     function getOnProgressProps(response) {
  2201.         const {headers, status, statusText, url, redirected, ok} = response;
  2202.         const isIdentity = identityContentEncodings.has(headers.get("Content-Encoding"));
  2203.         const compressed = !isIdentity;
  2204.         const _contentLength = parseInt(headers.get("Content-Length")); // `get()` returns `null` if no header present
  2205.         const contentLength = isNaN(_contentLength) ? null : _contentLength;
  2206.         const lengthComputable = isIdentity && _contentLength !== null;
  2207.  
  2208.         // Original XHR behaviour; in TM it equals to `contentLength`, or `-1` if `contentLength` is `null` (and `0`?).
  2209.         const total = lengthComputable ? contentLength : 0;
  2210.         const gmTotal = contentLength > 0 ? contentLength : -1; // Like `total` is in TM and GM.
  2211.  
  2212.         return {
  2213.             gmTotal, total, lengthComputable,
  2214.             compressed, contentLength,
  2215.             headers, status, statusText, url, redirected, ok
  2216.         };
  2217.     }
  2218.     function responseProgressProxy(response, onProgress) {
  2219.         const onProgressProps = getOnProgressProps(response);
  2220.         let loaded = 0;
  2221.         const reader = response.body.getReader();
  2222.         const readableStream = new ReadableStream({
  2223.             async start(controller) {
  2224.                 while (true) {
  2225.                     const {done, /** @type {Uint8Array} */ value} = await reader.read();
  2226.                     if (done) {
  2227.                         break;
  2228.                     }
  2229.                     loaded += value.length;
  2230.                     try {
  2231.                         onProgress({loaded, ...onProgressProps});
  2232.                     } catch (err) {
  2233.                         console.error("[ujs][onProgress]:", err);
  2234.                     }
  2235.                     controller.enqueue(value);
  2236.                 }
  2237.                 controller.close();
  2238.                 reader.releaseLock();
  2239.             },
  2240.             cancel() {
  2241.                 void reader.cancel();
  2242.             }
  2243.         });
  2244.         return new ResponseEx(readableStream, response);
  2245.     }
  2246.     class ResponseEx extends Response {
  2247.         [Symbol.toStringTag] = "ResponseEx";
  2248.  
  2249.         constructor(body, {headers, status, statusText, url, redirected, type, ok}) {
  2250.             super(body, {
  2251.                 status, statusText, headers: {
  2252.                     ...headers,
  2253.                     "content-type": headers.get("content-type")?.split("; ")[0] // Fixes Blob type ("text/html; charset=UTF-8") in TM
  2254.                 }
  2255.             });
  2256.             this._type = type;
  2257.             this._url = url;
  2258.             this._redirected = redirected;
  2259.             this._ok = ok;
  2260.             this._headers = headers; // `HeadersLike` is more user-friendly for debug than the original `Headers` object
  2261.         }
  2262.         get redirected() { return this._redirected; }
  2263.         get url() { return this._url; }
  2264.         get type() { return this._type || "basic"; }
  2265.         get ok() { return this._ok; }
  2266.         /** @returns {Headers} - `Headers`-like object */
  2267.         get headers() { return this._headers; }
  2268.     }
  2269.  
  2270.     function toLineJSON(object, prettyHead = false) {
  2271.         let result = "{\n";
  2272.         const entries = Object.entries(object);
  2273.         const length = entries.length;
  2274.         if (prettyHead && length > 0) {
  2275.             result += `"${entries[0][0]}":${JSON.stringify(entries[0][1], null, " ")}`;
  2276.             if (length > 1) {
  2277.                 result += `,\n\n`;
  2278.             }
  2279.         }
  2280.         for (let i = 1; i < length - 1; i++) {
  2281.             result += `"${entries[i][0]}":${JSON.stringify(entries[i][1])},\n`;
  2282.         }
  2283.         if (length > 0 && !prettyHead || length > 1) {
  2284.             result += `"${entries[length - 1][0]}":${JSON.stringify(entries[length - 1][1])}`;
  2285.         }
  2286.         result += `\n}`;
  2287.         return result;
  2288.     }
  2289.  
  2290.     const isFirefox = navigator.userAgent.toLowerCase().indexOf("firefox") !== -1;
  2291.  
  2292.     function getBrowserName() {
  2293.         const userAgent = window.navigator.userAgent.toLowerCase();
  2294.         return userAgent.indexOf("edge") > -1 ? "edge-legacy"
  2295.             : userAgent.indexOf("edg") > -1 ? "edge"
  2296.             : userAgent.indexOf("opr") > -1 && !!window.opr ? "opera"
  2297.             : userAgent.indexOf("chrome") > -1 && !!window.chrome ? "chrome"
  2298.             : userAgent.indexOf("firefox") > -1 ? "firefox"
  2299.             : userAgent.indexOf("safari") > -1 ? "safari"
  2300.             : "";
  2301.     }
  2302.  
  2303.     function removeSearchParams(url) {
  2304.         const urlObj = new URL(url);
  2305.         const keys = []; // FF + VM fix // Instead of [...urlObj.searchParams.keys()]
  2306.         urlObj.searchParams.forEach((v, k) => { keys.push(k); });
  2307.         for (const key of keys) {
  2308.             urlObj.searchParams.delete(key);
  2309.         }
  2310.         return urlObj.toString();
  2311.     }
  2312.  
  2313.     return {
  2314.         sleep, fetchResource, extensionFromMime, downloadBlob, dateToDayDateString,
  2315.         addCSS,
  2316.         getCookie,
  2317.         throttle, throttleWithResult,
  2318.         xpath, xpathAll,
  2319.         responseProgressProxy,
  2320.         toLineJSON,
  2321.         isFirefox,
  2322.         getBrowserName,
  2323.         removeSearchParams,
  2324.     }
  2325. }
  2326.  
  2327. // ---------------------------------------------------------------------------------------------------------------------
  2328. // ---------------------------------------------------------------------------------------------------------------------