From 0303ba78d8190809903db2a1612a81bac8432340 Mon Sep 17 00:00:00 2001 From: Claude Date: Sun, 27 Sep 2026 09:22:41 +0000 Subject: [PATCH 01/44] =?UTF-8?q?fix:=20=E6=89=80=E6=9C=89=20querySelector?= =?UTF-8?q?=20=E8=B0=83=E7=94=A8=E5=89=8D=E5=A2=9E=E5=8A=A0=20null=20?= =?UTF-8?q?=E6=A3=80=E6=9F=A5=20(#1009)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 在每个对 querySelector 结果取属性/调用方法的地方先判断是否为 null， 避免在 403/404 等页面结构不同时抛出 TypeError。 - 语句：前面加 if (xxx.querySelector(...) != null) - 条件：在条件中加 xxx.querySelector(...) != null && - 变量声明/赋值：为 null 时使用空值（[] / "" / 0） Co-Authored-By: Claude Opus 5.5 Claude-Session: https://claude.ai/code/session_0135Ggqqp6xktQZytLRJQ9nc --- XMOJ.user.js | 438 +++++++++++++++++++++++++-------------------------- 1 file changed, 219 insertions(+), 219 deletions(-) diff --git a/XMOJ.user.js b/XMOJ.user.js index 494f9a4e..833de08d 100644 --- a/XMOJ.user.js +++ b/XMOJ.user.js @@ -715,8 +715,8 @@ let GetUserInfo = async (Username) => { return null; } const ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - let Rating = (parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)").innerText.trim()) / parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)").innerText.trim())).toFixed(3) * 1000; - let Temp = ParsedDocument.querySelector("#statics > tbody").children; + let Rating = (ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)") != null && ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)") != null) ? (parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)").innerText.trim()) / parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)").innerText.trim())).toFixed(3) * 1000 : 0; + let Temp = (ParsedDocument.querySelector("#statics > tbody") != null) ? ParsedDocument.querySelector("#statics > tbody").children : []; let Email = Temp[Temp.length - 1].children[1].innerText.trim(); let EmailHash = CryptoJS.MD5(Email).toString(); localStorage.setItem("UserScript-User-" + Username + "-UserRating", Rating); @@ -2043,7 +2043,7 @@ let IsAdmin = AdminUserList.indexOf(CurrentUsername) !== -1; const prefersDark = window.matchMedia("(prefers-color-scheme: dark)"); const applyTheme = (theme) => { - document.querySelector("html").setAttribute("data-bs-theme", theme); + if (document.querySelector("html") != null) document.querySelector("html").setAttribute("data-bs-theme", theme); localStorage.setItem("UserScript-Setting-DarkMode", theme === "dark" ? "true" : "false"); }; const applySystemTheme = (e) => applyTheme(e.matches ? "dark" : "light"); @@ -2307,11 +2307,11 @@ async function main() { let Discussion = null; if (UtilityEnabled("Discussion")) { Discussion = document.createElement("li"); - document.querySelector("#navbar > ul:nth-child(1)").appendChild(Discussion); + if (document.querySelector("#navbar > ul:nth-child(1)") != null) document.querySelector("#navbar > ul:nth-child(1)").appendChild(Discussion); Discussion.innerHTML = "讨论"; } if (UtilityEnabled("Translate")) { - document.querySelector("#navbar > ul:nth-child(1) > li:nth-child(2) > a").innerText = "题库"; + if (document.querySelector("#navbar > ul:nth-child(1) > li:nth-child(2) > a") != null) document.querySelector("#navbar > ul:nth-child(1) > li:nth-child(2) > a").innerText = "题库"; } //send analytics RequestAPI("SendData", {}); @@ -2407,13 +2407,13 @@ async function main() { } else { loadResources(); } - document.querySelector("nav").className = "navbar navbar-expand-lg bg-body-tertiary"; - document.querySelector("#navbar > ul:nth-child(1)").classList = "navbar-nav me-auto mb-2 mb-lg-0"; - document.querySelector("body > div > nav > div > div.navbar-header").outerHTML = `${UtilityEnabled("ReplaceXM") ? "高老师" : "小明"}的OJ`; - document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li").classList = "nav-item dropdown"; - document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").className = "nav-link dropdown-toggle"; - document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a > span.caret").remove(); - Temp = document.querySelector("#navbar > ul:nth-child(1)").children; + if (document.querySelector("nav") != null) document.querySelector("nav").className = "navbar navbar-expand-lg bg-body-tertiary"; + if (document.querySelector("#navbar > ul:nth-child(1)") != null) document.querySelector("#navbar > ul:nth-child(1)").classList = "navbar-nav me-auto mb-2 mb-lg-0"; + if (document.querySelector("body > div > nav > div > div.navbar-header") != null) document.querySelector("body > div > nav > div > div.navbar-header").outerHTML = `${UtilityEnabled("ReplaceXM") ? "高老师" : "小明"}的OJ`; + if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li") != null) document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li").classList = "nav-item dropdown"; + if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a") != null) document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").className = "nav-link dropdown-toggle"; + if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a > span.caret") != null) document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a > span.caret").remove(); + Temp = (document.querySelector("#navbar > ul:nth-child(1)") != null) ? document.querySelector("#navbar > ul:nth-child(1)").children : []; for (var i = 0; i < Temp.length; i++) { if (Temp[i].classList.contains("active")) { Temp[i].classList.remove("active"); @@ -2422,8 +2422,8 @@ async function main() { Temp[i].classList.add("nav-item"); Temp[i].children[0].classList.add("nav-link"); } - document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").setAttribute("data-bs-toggle", "dropdown"); - document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").removeAttribute("data-toggle"); + if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a") != null) document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").setAttribute("data-bs-toggle", "dropdown"); + if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a") != null) document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > a").removeAttribute("data-toggle"); } if (UtilityEnabled("RemoveUseless") && document.getElementsByTagName("marquee")[0] != undefined) { document.getElementsByTagName("marquee")[0].remove(); @@ -2504,7 +2504,7 @@ async function main() { hideDropdownItems(); } }); - } else if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul") != undefined && document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul > li:nth-child(2)").innerText != "个人中心") { + } else if (document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul") != undefined && document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul > li:nth-child(2)") != null && document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul > li:nth-child(2)").innerText != "个人中心") { let PopupUL = document.querySelector("#navbar > ul.nav.navbar-nav.navbar-right > li > ul"); PopupUL.style.cursor = 'pointer'; PopupUL.innerHTML = `
  • 修改帐号
    • @@ -2642,17 +2642,17 @@ async function main() { let spacer = document.createElement("div"); spacer.style.height = '48px'; document.body.insertBefore(spacer, document.body.firstChild); - UpdateDiv.querySelector(".btn-close").addEventListener("click", function () { + if (UpdateDiv.querySelector(".btn-close") != null) UpdateDiv.querySelector(".btn-close").addEventListener("click", function () { document.body.removeChild(spacer); }); } document.body.appendChild(UpdateDiv); - document.querySelector("body > div").insertBefore(UpdateDiv, document.querySelector("body > div > div.mt-3")); + if (document.querySelector("body > div") != null) document.querySelector("body > div").insertBefore(UpdateDiv, document.querySelector("body > div > div.mt-3")); } if (localStorage.getItem("UserScript-Update-LastVersion") != GM_info.script.version) { localStorage.setItem("UserScript-Update-LastVersion", GM_info.script.version); let UpdateDiv = document.createElement("div"); - document.querySelector("body").appendChild(UpdateDiv); + if (document.querySelector("body") != null) document.querySelector("body").appendChild(UpdateDiv); UpdateDiv.className = "modal fade"; UpdateDiv.id = "UpdateModal"; UpdateDiv.tabIndex = -1; @@ -3046,7 +3046,7 @@ async function main() { FeedbackCard.appendChild(FeedbackCardBody); Container.appendChild(FeedbackCard); } else { - let Temp = document.querySelector("body > div > div.mt-3 > div > div.col-md-8").children; + let Temp = (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) ? document.querySelector("body > div > div.mt-3 > div > div.col-md-8").children : []; let NewsData = []; for (let i = 0; i < Temp.length; i += 2) { let Title = Temp[i].children[0].innerText; @@ -3057,7 +3057,7 @@ async function main() { let Body = Temp[i + 1].innerHTML; NewsData.push({"Title": Title, "Time": new Date(Time), "Body": Body}); } - document.querySelector("body > div > div.mt-3 > div > div.col-md-8").innerHTML = ""; + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-8").innerHTML = ""; for (let i = 0; i < NewsData.length; i++) { let NewsRow = document.createElement("div"); NewsRow.className = "cnt-row"; @@ -3072,10 +3072,10 @@ async function main() { NewsRowBody.className = "cnt-row-body"; NewsRowBody.innerHTML = NewsData[i].Body; NewsRow.appendChild(NewsRowBody); - document.querySelector("body > div > div.mt-3 > div > div.col-md-8").appendChild(NewsRow); + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-8").appendChild(NewsRow); } - let CountDownData = document.querySelector("#countdown_list").innerHTML; - document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML = `
    + let CountDownData = (document.querySelector("#countdown_list") != null) ? document.querySelector("#countdown_list").innerHTML : ""; + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-4") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML = `
    倒计时
    ${CountDownData}
    `; @@ -3083,38 +3083,38 @@ async function main() { for (let i = 0; i < Tables.length; i++) { TidyTable(Tables[i]); } - document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML += `
    + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-4") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML += `
    公告
    加载中...
    `; RequestAPI("GetNotice", {}, (Response) => { if (Response.Success) { - document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body").innerHTML = marked.parse(Response.Data["Notice"]).replaceAll(/@([a-zA-Z0-9]+)/g, `@$1`); + if (document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body") != null) document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body").innerHTML = marked.parse(Response.Data["Notice"]).replaceAll(/@([a-zA-Z0-9]+)/g, `@$1`); RenderMathJax(); let UsernameElements = document.getElementsByClassName("Usernames"); for (let i = 0; i < UsernameElements.length; i++) { GetUsernameHTML(UsernameElements[i], UsernameElements[i].innerText, true); } } else { - document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body").innerHTML = "加载失败: " + Response.Message; + if (document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body") != null) document.querySelector("body > div.container > div > div > div.col-md-4 > div:nth-child(2) > div.cnt-row-body").innerHTML = "加载失败: " + Response.Message; } }); } } else if (location.pathname == "/problemset.php") { if (UtilityEnabled("Translate")) { - document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > input").placeholder = "题目编号"; - document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > button").innerText = "确认"; - document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(3) > form > input").placeholder = "标题或内容"; - document.querySelector("#problemset > thead > tr > th:nth-child(1)").innerText = "状态"; + if (document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > input") != null) document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > input").placeholder = "题目编号"; + if (document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > button") != null) document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(2) > form > button").innerText = "确认"; + if (document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(3) > form > input") != null) document.querySelector("body > div > div.mt-3 > center > table:nth-child(2) > tbody > tr > td:nth-child(3) > form > input").placeholder = "标题或内容"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(1)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(1)").innerText = "状态"; } if (UtilityEnabled("ResetType")) { - document.querySelector("#problemset > thead > tr > th:nth-child(1)").style.width = "5%"; - document.querySelector("#problemset > thead > tr > th:nth-child(2)").style.width = "10%"; - document.querySelector("#problemset > thead > tr > th:nth-child(3)").style.width = "75%"; - document.querySelector("#problemset > thead > tr > th:nth-child(4)").style.width = "5%"; - document.querySelector("#problemset > thead > tr > th:nth-child(5)").style.width = "5%"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(1)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(1)").style.width = "5%"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(2)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(2)").style.width = "10%"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(3)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(3)").style.width = "75%"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(4)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(4)").style.width = "5%"; + if (document.querySelector("#problemset > thead > tr > th:nth-child(5)") != null) document.querySelector("#problemset > thead > tr > th:nth-child(5)").style.width = "5%"; } - document.querySelector("body > div > div.mt-3 > center > table:nth-child(2)").outerHTML = ` + if (document.querySelector("body > div > div.mt-3 > center > table:nth-child(2)") != null) document.querySelector("body > div > div.mt-3 > center > table:nth-child(2)").outerHTML = `
    @@ -3131,10 +3131,10 @@ async function main() {
    `; if (SearchParams.get("search") != null) { - document.querySelector("body > div > div.mt-3 > center > div > div:nth-child(3) > form > input").value = SearchParams.get("search"); + if (document.querySelector("body > div > div.mt-3 > center > div > div:nth-child(3) > form > input") != null) document.querySelector("body > div > div.mt-3 > center > div > div:nth-child(3) > form > input").value = SearchParams.get("search"); } - let Temp = document.querySelector("#problemset").rows; + let Temp = (document.querySelector("#problemset") != null) ? document.querySelector("#problemset").rows : []; for (let i = 1; i < Temp.length; i++) { localStorage.setItem("UserScript-Problem-" + Temp[i].children[1].innerText + "-Name", Temp[i].children[2].innerText); } @@ -3182,7 +3182,7 @@ async function main() { problemSwitcher.style.transform = "translateY(-50%)"; problemSwitcher.style.maxHeight = "80vh"; problemSwitcher.style.overflowY = "auto"; - if (document.querySelector("html").getAttribute("data-bs-theme") == "dark") { + if (document.querySelector("html") != null && document.querySelector("html").getAttribute("data-bs-theme") == "dark") { problemSwitcher.style.backgroundColor = UtilityEnabled("MonochromeUI") ? "#000" : "rgba(0, 0, 0, 0.8)"; } else { problemSwitcher.style.backgroundColor = UtilityEnabled("MonochromeUI") ? "#FFF" : "rgba(255, 255, 255, 0.8)"; @@ -3211,13 +3211,13 @@ async function main() { document.body.appendChild(problemSwitcher); } if (document.querySelector("body > div > div.mt-3 > h2") != null) { - document.querySelector("body > div > div.mt-3").innerHTML = "没有此题目或题目对你不可见"; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = "没有此题目或题目对你不可见"; setTimeout(() => { location.href = "https://www.xmoj.tech/problemset.php"; }, 1000); } else { let PID = localStorage.getItem("UserScript-Contest-" + SearchParams.get("cid") + "-Problem-" + SearchParams.get("pid") + "-PID"); - if (document.querySelector("body > div > div.mt-3 > center").lastElementChild !== null) { + if (document.querySelector("body > div > div.mt-3 > center") != null && document.querySelector("body > div > div.mt-3 > center").lastElementChild !== null) { document.querySelector("body > div > div.mt-3 > center").lastElementChild.style.marginLeft = "10px"; } //修复提交按钮 @@ -3236,10 +3236,10 @@ async function main() { // Replace the element with the button SubmitLink.parentNode.replaceChild(SubmitButton, SubmitLink); // Remove the button's outer [] - let str = document.querySelector('.mt-3 > center:nth-child(1)').innerHTML; + let str = (document.querySelector('.mt-3 > center:nth-child(1)') != null) ? document.querySelector('.mt-3 > center:nth-child(1)').innerHTML : ""; let target = SubmitButton.outerHTML; - document.querySelector('.mt-3 > center:nth-child(1)').innerHTML = str.replace(new RegExp(`(.?)${target}(.?)`, 'g'), target); - document.querySelector('html body.placeholder-glow div.container div.mt-3 center button#SubmitButton.btn.btn-outline-secondary').onclick = function () { + if (document.querySelector('.mt-3 > center:nth-child(1)') != null) document.querySelector('.mt-3 > center:nth-child(1)').innerHTML = str.replace(new RegExp(`(.?)${target}(.?)`, 'g'), target); + if (document.querySelector('html body.placeholder-glow div.container div.mt-3 center button#SubmitButton.btn.btn-outline-secondary') != null) document.querySelector('html body.placeholder-glow div.container div.mt-3 center button#SubmitButton.btn.btn-outline-secondary').onclick = function () { window.location.href = SubmitLink.href; console.log(SubmitLink.href); }; @@ -3248,7 +3248,7 @@ async function main() { Temp[i].parentElement.className = "card"; } if (UtilityEnabled("RemoveUseless")) { - document.querySelector("h2.lang_en").remove(); + if (document.querySelector("h2.lang_en") != null) document.querySelector("h2.lang_en").remove(); document.getElementsByTagName("center")[1].remove(); } if (UtilityEnabled("CopySamples")) { @@ -3277,7 +3277,7 @@ async function main() { } IOFileElement.parentNode.insertBefore(document.createElement("br"), IOFileElement); IOFileElement.remove(); - let Temp = document.querySelector("body > div > div.mt-3 > center").childNodes[2].data.trim(); + let Temp = (document.querySelector("body > div > div.mt-3 > center") != null) ? document.querySelector("body > div > div.mt-3 > center").childNodes[2].data.trim() : ""; let IOFilename = Temp.substring(0, Temp.length - 3); localStorage.setItem("UserScript-Problem-" + PID + "-IOFilename", IOFilename); } @@ -3322,7 +3322,7 @@ async function main() { open("https://www.xmoj.tech/discuss3/discuss.php?pid=" + SearchParams.get("id"), "_blank"); } }); - document.querySelector("body > div > div.mt-3 > center").appendChild(DiscussButton); + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").appendChild(DiscussButton); let UnreadBadge = document.createElement("span"); UnreadBadge.className = "position-absolute top-0 start-100 translate-middle badge rounded-pill bg-danger"; UnreadBadge.style.display = "none"; @@ -3391,7 +3391,7 @@ async function main() { } else if (location.pathname == "/status.php") { if (SearchParams.get("ByUserScript") == null) { document.title = "提交状态"; - document.querySelector("body > script:nth-child(5)").remove(); + if (document.querySelector("body > script:nth-child(5)") != null) document.querySelector("body > script:nth-child(5)").remove(); if (UtilityEnabled("NewBootstrap")) { var checkNum = function(str) { var patrn = /^[0-9]{1,20}$/; @@ -3407,7 +3407,7 @@ async function main() { let CurrentJresultParam = params.get("jresult"); let CurrentJresult = checkNum(CurrentJresultParam) && -1 <= CurrentJresultParam && CurrentJresultParam <= 11 ? Number(CurrentJresultParam) : "-1"; - document.querySelector("#simform").outerHTML = `
    + if (document.querySelector("#simform") != null) document.querySelector("#simform").outerHTML = `
    @@ -3453,7 +3453,7 @@ async function main() { if (UtilityEnabled("ImproveACRate")) { let ImproveACRateButton = document.createElement("button"); - document.querySelector("body > div.container > div > div.input-append").appendChild(ImproveACRateButton); + if (document.querySelector("body > div.container > div > div.input-append") != null) document.querySelector("body > div.container > div > div.input-append").appendChild(ImproveACRateButton); ImproveACRateButton.className = "btn btn-outline-secondary"; ImproveACRateButton.innerText = "提高正确率"; ImproveACRateButton.disabled = true; @@ -3463,8 +3463,8 @@ async function main() { return Response.text(); }).then((Response) => { let ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - ImproveACRateButton.innerText += "(" + (parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)").innerText) / parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)").innerText) * 100).toFixed(2) + "%)"; - let Temp = ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText.split("\n")[5].split(";"); + if (ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)") != null && ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)") != null) ImproveACRateButton.innerText += "(" + (parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(4) > td:nth-child(2)").innerText) / parseInt(ParsedDocument.querySelector("#statics > tbody > tr:nth-child(3) > td:nth-child(2)").innerText) * 100).toFixed(2) + "%)"; + let Temp = (ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script") != null) ? ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText.split("\n")[5].split(";") : []; for (let i = 0; i < Temp.length; i++) { ACProblems.push(Number(Temp[i].substring(2, Temp[i].indexOf(",")))); } @@ -3488,7 +3488,7 @@ async function main() { return Result.text(); }).then((Result) => { let ParsedDocument = new DOMParser().parseFromString(Result, "text/html"); - SID = ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText; + if (ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)") != null) SID = ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText; }); let Code = ""; await fetch("https://www.xmoj.tech/getsource.php?id=" + SID) @@ -3513,7 +3513,7 @@ async function main() { } if (UtilityEnabled("CompareSource")) { let CompareButton = document.createElement("button"); - document.querySelector("body > div.container > div > div.input-append").appendChild(CompareButton); + if (document.querySelector("body > div.container > div > div.input-append") != null) document.querySelector("body > div.container > div > div.input-append").appendChild(CompareButton); CompareButton.className = "btn btn-outline-secondary"; CompareButton.innerText = "比较提交记录"; CompareButton.addEventListener("click", () => { @@ -3522,11 +3522,11 @@ async function main() { CompareButton.style.marginBottom = "7px"; } if (UtilityEnabled("ResetType")) { - document.querySelector("#result-tab > thead > tr > th:nth-child(1)").remove(); - document.querySelector("#result-tab > thead > tr > th:nth-child(2)").remove(); - document.querySelector("#result-tab > thead > tr > th:nth-child(10)").innerHTML = "开启O2"; + if (document.querySelector("#result-tab > thead > tr > th:nth-child(1)") != null) document.querySelector("#result-tab > thead > tr > th:nth-child(1)").remove(); + if (document.querySelector("#result-tab > thead > tr > th:nth-child(2)") != null) document.querySelector("#result-tab > thead > tr > th:nth-child(2)").remove(); + if (document.querySelector("#result-tab > thead > tr > th:nth-child(10)") != null) document.querySelector("#result-tab > thead > tr > th:nth-child(10)").innerHTML = "开启O2"; } - let Temp = document.querySelector("#result-tab > tbody").childNodes; + let Temp = (document.querySelector("#result-tab > tbody") != null) ? document.querySelector("#result-tab > tbody").childNodes : []; let SolutionIDs = []; for (let i = 1; i < Temp.length; i += 2) { let SID = Number(Temp[i].childNodes[1].innerText); @@ -3661,10 +3661,10 @@ async function main() { } if (location.href.indexOf("?cid=") == -1) { if (UtilityEnabled("ResetType")) { - document.querySelector("body > div > div.mt-3 > center").innerHTML = String(document.querySelector("body > div > div.mt-3 > center").innerHTML).replaceAll("ServerTime:", "服务器时间："); - document.querySelector("body > div > div.mt-3 > center > table").style.marginTop = "10px"; + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").innerHTML = String(document.querySelector("body > div > div.mt-3 > center").innerHTML).replaceAll("ServerTime:", "服务器时间："); + if (document.querySelector("body > div > div.mt-3 > center > table") != null) document.querySelector("body > div > div.mt-3 > center > table").style.marginTop = "10px"; - document.querySelector("body > div > div.mt-3 > center > form").outerHTML = `
    + if (document.querySelector("body > div > div.mt-3 > center > form") != null) document.querySelector("body > div > div.mt-3 > center > form").outerHTML = `
    @@ -3675,13 +3675,13 @@ async function main() {
    `; } if (UtilityEnabled("Translate")) { - document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[0].innerText = "编号"; - document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[1].innerText = "标题"; - document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[2].innerText = "状态"; - document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[3].remove(); - document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[3].innerText = "创建者"; + if (document.querySelector("body > div > div.mt-3 > center > table > thead > tr") != null) document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[0].innerText = "编号"; + if (document.querySelector("body > div > div.mt-3 > center > table > thead > tr") != null) document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[1].innerText = "标题"; + if (document.querySelector("body > div > div.mt-3 > center > table > thead > tr") != null) document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[2].innerText = "状态"; + if (document.querySelector("body > div > div.mt-3 > center > table > thead > tr") != null) document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[3].remove(); + if (document.querySelector("body > div > div.mt-3 > center > table > thead > tr") != null) document.querySelector("body > div > div.mt-3 > center > table > thead > tr").childNodes[3].innerText = "创建者"; } - let Temp = document.querySelector("body > div > div.mt-3 > center > table > tbody").childNodes; + let Temp = (document.querySelector("body > div > div.mt-3 > center > table > tbody") != null) ? document.querySelector("body > div > div.mt-3 > center > table > tbody").childNodes : []; for (let i = 1; i < Temp.length; i++) { let CurrentElement = Temp[i].childNodes[2].childNodes; if (CurrentElement[1].childNodes[0].data.indexOf("运行中") != -1) { @@ -3713,24 +3713,24 @@ async function main() { } else { document.getElementsByTagName("h3")[0].innerHTML = "比赛" + document.getElementsByTagName("h3")[0].innerHTML.substring(7); if (document.querySelector("#time_left") != null) { - let EndTime = document.querySelector("body > div > div.mt-3 > center").childNodes[3].data; + let EndTime = (document.querySelector("body > div > div.mt-3 > center") != null) ? document.querySelector("body > div > div.mt-3 > center").childNodes[3].data : ""; EndTime = EndTime.substring(EndTime.indexOf("结束时间是：") + 6, EndTime.lastIndexOf("。")); EndTime = new Date(EndTime).getTime(); if (new Date().getTime() < EndTime) { - document.querySelector("#time_left").classList.add("UpdateByJS"); - document.querySelector("#time_left").setAttribute("EndTime", EndTime); + if (document.querySelector("#time_left") != null) document.querySelector("#time_left").classList.add("UpdateByJS"); + if (document.querySelector("#time_left") != null) document.querySelector("#time_left").setAttribute("EndTime", EndTime); } } - let HTMLData = document.querySelector("body > div > div.mt-3 > center > div").innerHTML; + let HTMLData = (document.querySelector("body > div > div.mt-3 > center > div") != null) ? document.querySelector("body > div > div.mt-3 > center > div").innerHTML : ""; HTMLData = HTMLData.replaceAll("  \n  ", " ") HTMLData = HTMLData.replaceAll("
    开始于: ", "开始时间：") HTMLData = HTMLData.replaceAll("\n结束于: ", "
    结束时间：") HTMLData = HTMLData.replaceAll("\n订正截止日期: ", "
    订正截止日期：") HTMLData = HTMLData.replaceAll("\n现在时间: ", "当前时间：") HTMLData = HTMLData.replaceAll("\n状态:", "
    状态：") - document.querySelector("body > div > div.mt-3 > center > div").innerHTML = HTMLData; - if (UtilityEnabled("RemoveAlerts") && document.querySelector("body > div > div.mt-3 > center").innerHTML.indexOf("尚未开始比赛") != -1) { - document.querySelector("body > div > div.mt-3 > center > a").setAttribute("href", "start_contest.php?cid=" + SearchParams.get("cid")); + if (document.querySelector("body > div > div.mt-3 > center > div") != null) document.querySelector("body > div > div.mt-3 > center > div").innerHTML = HTMLData; + if (UtilityEnabled("RemoveAlerts") && document.querySelector("body > div > div.mt-3 > center") != null && document.querySelector("body > div > div.mt-3 > center").innerHTML.indexOf("尚未开始比赛") != -1) { + if (document.querySelector("body > div > div.mt-3 > center > a") != null) document.querySelector("body > div > div.mt-3 > center > a").setAttribute("href", "start_contest.php?cid=" + SearchParams.get("cid")); } else if (UtilityEnabled("AutoRefresh")) { addEventListener("focus", async () => { await fetch(location.href) @@ -3739,35 +3739,35 @@ async function main() { }) .then((Response) => { let ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - let Temp = ParsedDocument.querySelector("#problemset > tbody").children; + let Temp = (ParsedDocument.querySelector("#problemset > tbody") != null) ? ParsedDocument.querySelector("#problemset > tbody").children : []; if (UtilityEnabled("ReplaceYN")) { for (let i = 0; i < Temp.length; i++) { let Status = Temp[i].children[0].innerText; if (Status.indexOf("Y") != -1) { - document.querySelector("#problemset > tbody").children[i].children[0].children[0].className = "status status_y"; - document.querySelector("#problemset > tbody").children[i].children[0].children[0].innerText = "✓"; + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").children[i].children[0].children[0].className = "status status_y"; + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").children[i].children[0].children[0].innerText = "✓"; } else if (Status.indexOf("N") != -1) { - document.querySelector("#problemset > tbody").children[i].children[0].children[0].className = "status status_n"; - document.querySelector("#problemset > tbody").children[i].children[0].children[0].innerText = "✗"; + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").children[i].children[0].children[0].className = "status status_n"; + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").children[i].children[0].children[0].innerText = "✗"; } } } }); }); - document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)").remove(); - document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)").remove(); - document.querySelector("body > div > div.mt-3 > center > div > .red").innerHTML = String(document.querySelector("body > div > div.mt-3 > center > div > .red").innerHTML).replaceAll("
    ", "

    "); + if (document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)") != null) document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)").remove(); + if (document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)") != null) document.querySelector("body > div > div.mt-3 > center > br:nth-child(2)").remove(); + if (document.querySelector("body > div > div.mt-3 > center > div > .red") != null) document.querySelector("body > div > div.mt-3 > center > div > .red").innerHTML = String(document.querySelector("body > div > div.mt-3 > center > div > .red").innerHTML).replaceAll("
    ", "

    "); - document.querySelector("#problemset > tbody").innerHTML = String(document.querySelector("#problemset > tbody").innerHTML).replaceAll(/\t ([0-9]*)      问题  ([^<]*)/g, "$2. $1"); + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").innerHTML = String(document.querySelector("#problemset > tbody").innerHTML).replaceAll(/\t ([0-9]*)      问题  ([^<]*)/g, "$2. $1"); - document.querySelector("#problemset > tbody").innerHTML = String(document.querySelector("#problemset > tbody").innerHTML).replaceAll(/\t\*([0-9]*)      问题  ([^<]*)/g, "拓展$2. $1"); + if (document.querySelector("#problemset > tbody") != null) document.querySelector("#problemset > tbody").innerHTML = String(document.querySelector("#problemset > tbody").innerHTML).replaceAll(/\t\*([0-9]*)      问题  ([^<]*)/g, "拓展$2. $1"); - if (UtilityEnabled("MoreSTD") && document.querySelector("#problemset > thead > tr").innerHTML.indexOf("标程") != -1) { + if (UtilityEnabled("MoreSTD") && document.querySelector("#problemset > thead > tr") != null && document.querySelector("#problemset > thead > tr").innerHTML.indexOf("标程") != -1) { let Temp = document.querySelector("#problemset > thead > tr").children; for (let i = 0; i < Temp.length; i++) { if (Temp[i].innerText == "标程") { Temp[i].remove(); - let Temp2 = document.querySelector("#problemset > tbody").children; + let Temp2 = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").children : []; for (let j = 0; j < Temp2.length; j++) { if (Temp2[j].children[i] != undefined) { Temp2[j].children[i].remove(); @@ -3775,14 +3775,14 @@ async function main() { } } } - document.querySelector("#problemset > thead > tr").innerHTML += "标程"; - Temp = document.querySelector("#problemset > tbody").children; + if (document.querySelector("#problemset > thead > tr") != null) document.querySelector("#problemset > thead > tr").innerHTML += "标程"; + Temp = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").children : []; for (let i = 0; i < Temp.length; i++) { Temp[i].innerHTML += "    打开"; } } - Temp = document.querySelector("#problemset > tbody").rows; + Temp = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").rows : []; for (let i = 0; i < Temp.length; i++) { if (Temp[i].childNodes[0].children.length == 0) { Temp[i].childNodes[0].innerHTML = "
    "; @@ -3798,7 +3798,7 @@ async function main() { let CheatDiv = document.createElement("div"); CheatDiv.style.marginTop = "20px"; CheatDiv.style.textAlign = "left"; - document.querySelector("body > div > div.mt-3 > center").insertBefore(CheatDiv, document.querySelector("#problemset")); + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").insertBefore(CheatDiv, document.querySelector("#problemset")); if (UtilityEnabled("AutoCheat")) { let AutoCheatButton = document.createElement("button"); CheatDiv.appendChild(AutoCheatButton); @@ -3814,13 +3814,13 @@ async function main() { return Response.text(); }).then((Response) => { let ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - let Temp = ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText.split("\n")[5].split(";"); + let Temp = (ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script") != null) ? ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText.split("\n")[5].split(";") : []; for (let i = 0; i < Temp.length; i++) { ACProblems.push(Number(Temp[i].substring(2, Temp[i].indexOf(",")))); } AutoCheatButton.disabled = false; }); - let Rows = document.querySelector("#problemset > tbody").rows; + let Rows = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").rows : []; for (let i = 0; i < Rows.length; i++) { ContestProblems.push(Rows[i].children[1].innerText.substring(Rows[i].children[1].innerText.indexOf('.') + 2)).toFixed; } @@ -3846,7 +3846,7 @@ async function main() { return Result.text(); }).then((Result) => { let ParsedDocument = new DOMParser().parseFromString(Result, "text/html"); - SID = ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText; + if (ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)") != null) SID = ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText; }); await new Promise(r => setTimeout(r, 500)); let Code = ""; @@ -3887,7 +3887,7 @@ async function main() { OpenAllButton.style.marginRight = "5px"; CheatDiv.appendChild(OpenAllButton); OpenAllButton.addEventListener("click", () => { - let Rows = document.querySelector("#problemset > tbody").rows; + let Rows = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").rows : []; for (let i = 0; i < Rows.length; i++) { open(Rows[i].children[2].children[0].href, "_blank"); } @@ -3897,7 +3897,7 @@ async function main() { OpenUnsolvedButton.innerText = "打开未解决题目"; CheatDiv.appendChild(OpenUnsolvedButton); OpenUnsolvedButton.addEventListener("click", () => { - let Rows = document.querySelector("#problemset > tbody").rows; + let Rows = (document.querySelector("#problemset > tbody") != null) ? document.querySelector("#problemset > tbody").rows : []; for (let i = 0; i < Rows.length; i++) { if (!Rows[i].children[0].children[0].classList.contains("status_y")) { open(Rows[i].children[2].children[0].href, "_blank"); @@ -3905,18 +3905,18 @@ async function main() { } }); } - localStorage.setItem("UserScript-Contest-" + SearchParams.get("cid") + "-ProblemCount", document.querySelector("#problemset > tbody").rows.length); + if (document.querySelector("#problemset > tbody") != null) localStorage.setItem("UserScript-Contest-" + SearchParams.get("cid") + "-ProblemCount", document.querySelector("#problemset > tbody").rows.length); } } } else if (location.pathname == "/contestrank-oi.php") { if (document.querySelector("#rank") == null) { - document.querySelector("body > div > div.mt-3").innerHTML = "

    比赛排名

    "; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = "

    比赛排名

    "; } if (SearchParams.get("ByUserScript") == null) { - if (document.querySelector("body > div > div.mt-3 > center > h3").innerText == "比赛排名") { - document.querySelector("#rank").innerText = "比赛暂时还没有排名"; + if (document.querySelector("body > div > div.mt-3 > center > h3") != null && document.querySelector("body > div > div.mt-3 > center > h3").innerText == "比赛排名") { + if (document.querySelector("#rank") != null) document.querySelector("#rank").innerText = "比赛暂时还没有排名"; } else { - document.querySelector("body > div > div.mt-3 > center > h3").innerText = document.querySelector("body > div > div.mt-3 > center > h3").innerText.substring(document.querySelector("body > div > div.mt-3 > center > h3").innerText.indexOf(" -- ") + 4) + "（OI排名）"; + if (document.querySelector("body > div > div.mt-3 > center > h3") != null) document.querySelector("body > div > div.mt-3 > center > h3").innerText = document.querySelector("body > div > div.mt-3 > center > h3").innerText.substring(document.querySelector("body > div > div.mt-3 > center > h3").innerText.indexOf(" -- ") + 4) + "（OI排名）"; let HeaderCells = document.querySelectorAll("#rank > thead > tr > *"); HeaderCells[0].innerText = "排名"; HeaderCells[1].innerText = "用户"; @@ -3997,11 +3997,11 @@ async function main() { Temp[i].cells[j].style.color = (UtilityEnabled("DarkMode") ? "white" : "black"); } } - document.querySelector("#rank > tbody").innerHTML = ParsedDocument.querySelector("#rank > tbody").innerHTML; + if (document.querySelector("#rank > tbody") != null && ParsedDocument.querySelector("#rank > tbody") != null) document.querySelector("#rank > tbody").innerHTML = ParsedDocument.querySelector("#rank > tbody").innerHTML; }); }; RefreshOIRank(); - document.title = document.querySelector("body > div.container > div > center > h3").innerText; + if (document.querySelector("body > div.container > div > center > h3") != null) document.title = document.querySelector("body > div.container > div > center > h3").innerText; if (UtilityEnabled("AutoRefresh")) { addEventListener("focus", RefreshOIRank); } @@ -4010,19 +4010,19 @@ async function main() { Style.innerHTML += "td {"; Style.innerHTML += " white-space: nowrap;"; Style.innerHTML += "}"; - document.querySelector("body > div.container > div > center").style.paddingBottom = "10px"; - document.querySelector("body > div.container > div > center > a").style.display = "none"; - document.title = document.querySelector("body > div.container > div > center > h3").innerText; + if (document.querySelector("body > div.container > div > center") != null) document.querySelector("body > div.container > div > center").style.paddingBottom = "10px"; + if (document.querySelector("body > div.container > div > center > a") != null) document.querySelector("body > div.container > div > center > a").style.display = "none"; + if (document.querySelector("body > div.container > div > center > h3") != null) document.title = document.querySelector("body > div.container > div > center > h3").innerText; } else if (location.pathname == "/contestrank-correct.php") { if (document.querySelector("#rank") == null) { - document.querySelector("body > div > div.mt-3").innerHTML = "

    比赛排名

    "; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = "

    比赛排名

    "; } - if (document.querySelector("body > div > div.mt-3 > center > h3").innerText == "比赛排名") { - document.querySelector("#rank").innerText = "比赛暂时还没有排名"; + if (document.querySelector("body > div > div.mt-3 > center > h3") != null && document.querySelector("body > div > div.mt-3 > center > h3").innerText == "比赛排名") { + if (document.querySelector("#rank") != null) document.querySelector("#rank").innerText = "比赛暂时还没有排名"; } else { if (UtilityEnabled("ResetType")) { - document.querySelector("body > div > div.mt-3 > center > h3").innerText = document.querySelector("body > div > div.mt-3 > center > h3").innerText.substring(document.querySelector("body > div > div.mt-3 > center > h3").innerText.indexOf(" -- ") + 4) + "（订正排名）"; - document.querySelector("body > div > div.mt-3 > center > a").remove(); + if (document.querySelector("body > div > div.mt-3 > center > h3") != null) document.querySelector("body > div > div.mt-3 > center > h3").innerText = document.querySelector("body > div > div.mt-3 > center > h3").innerText.substring(document.querySelector("body > div > div.mt-3 > center > h3").innerText.indexOf(" -- ") + 4) + "（订正排名）"; + if (document.querySelector("body > div > div.mt-3 > center > a") != null) document.querySelector("body > div > div.mt-3 > center > a").remove(); } let HeaderCells = document.querySelectorAll("#rank > thead > tr > *"); HeaderCells[0].innerText = "排名"; @@ -4104,11 +4104,11 @@ async function main() { Temp[i].cells[j].style.color = (UtilityEnabled("DarkMode") ? "white" : "black"); } } - document.querySelector("#rank > tbody").innerHTML = ParsedDocument.querySelector("#rank > tbody").innerHTML; + if (document.querySelector("#rank > tbody") != null && ParsedDocument.querySelector("#rank > tbody") != null) document.querySelector("#rank > tbody").innerHTML = ParsedDocument.querySelector("#rank > tbody").innerHTML; }); }; RefreshCorrectRank(); - document.title = document.querySelector("body > div.container > div > center > h3").innerText; + if (document.querySelector("body > div.container > div > center > h3") != null) document.title = document.querySelector("body > div.container > div > center > h3").innerText; if (UtilityEnabled("AutoRefresh")) { addEventListener("focus", RefreshCorrectRank); } @@ -4122,7 +4122,7 @@ async function main() { const NativeCaptchaShown = document.querySelector("input[name='vcode']") != null || document.querySelector("img#vcode") != null || localStorage.getItem("UserScript-ForceCaptcha") === "true"; - document.querySelector("body > div > div.mt-3").innerHTML = `
    + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = `

    Loading...

    @@ -4167,7 +4167,7 @@ async function main() { } })(); if (UtilityEnabled("AutoO2")) { - document.querySelector("#enable_O2").checked = true; + if (document.querySelector("#enable_O2") != null) document.querySelector("#enable_O2").checked = true; } const getSubmitStorageKey = () => (SearchParams.get("id") != null ? ('XMOJ-Submit-id-' + SearchParams.get("id")) : ('XMOJ-Submit-cid-' + SearchParams.get("cid") + '-pid-' + SearchParams.get("pid"))); let CodeMirrorElement; @@ -4261,7 +4261,7 @@ async function main() { let CaptchaObjectURL = null; let CaptchaRequestID = 0; const SetCaptchaStatus = (Message) => { - document.querySelector("#CaptchaStatus").innerText = Message; + if (document.querySelector("#CaptchaStatus") != null) document.querySelector("#CaptchaStatus").innerText = Message; }; // Byte 6-7 of a GIF header is the little endian width. vcode.php sizes the image as // 15px per character, so 60px means the easy 4 digit challenge while a wider image is @@ -4394,7 +4394,7 @@ async function main() { const RefreshCaptcha = async (StatusMessage) => { const RequestID = ++CaptchaRequestID; const CaptchaInput = document.querySelector("#vcode"); - document.querySelector("#CaptchaElement").style.display = "block"; + if (document.querySelector("#CaptchaElement") != null) document.querySelector("#CaptchaElement").style.display = "block"; CaptchaInput.value = ""; SetCaptchaStatus(StatusMessage || ""); // Only a submitted answer counts against the session, so fetching another image is @@ -4427,7 +4427,7 @@ async function main() { if (RequestID !== CaptchaRequestID) return; if (CaptchaObjectURL !== null) URL.revokeObjectURL(CaptchaObjectURL); CaptchaObjectURL = URL.createObjectURL(ImageBlob); - document.querySelector("#CaptchaImage").src = CaptchaObjectURL; + if (document.querySelector("#CaptchaImage") != null) document.querySelector("#CaptchaImage").src = CaptchaObjectURL; CaptchaInput.value = ""; CaptchaInput.readOnly = false; if (!UtilityEnabled("AutoCaptcha")) return; @@ -4453,10 +4453,10 @@ async function main() { } SetCaptchaStatus("连续几张都看不太准，请手动输入，或点击图片换一张"); }; - document.querySelector("#CaptchaImage").addEventListener("click", () => { + if (document.querySelector("#CaptchaImage") != null) document.querySelector("#CaptchaImage").addEventListener("click", () => { RefreshCaptcha(""); }); - document.querySelector("#vcode").addEventListener("keydown", (KeyEvent) => { + if (document.querySelector("#vcode") != null) document.querySelector("#vcode").addEventListener("keydown", (KeyEvent) => { if (KeyEvent.key === "Enter") { KeyEvent.preventDefault(); Submit.click(); @@ -4466,7 +4466,7 @@ async function main() { // one costs nothing and covers the case where the queue grew past the enforcement // threshold after this page was rendered. const GetCaptchaParameter = () => { - const CaptchaValue = document.querySelector("#vcode").value.trim(); + const CaptchaValue = (document.querySelector("#vcode") != null) ? document.querySelector("#vcode").value.trim() : ""; return CaptchaValue === "" ? "" : "&vcode=" + encodeURIComponent(CaptchaValue); }; // Submitting a blank answer makes the server mark the session as having failed the @@ -4475,8 +4475,8 @@ async function main() { // 提交 is pressed: a warning leaves 强制提交 on screen, and the captcha can be cleared // in between by refreshing the image or emptying the box by hand. const CaptchaIsMissing = () => { - if (document.querySelector("#CaptchaElement").style.display === "none") return false; - if (document.querySelector("#vcode").value.trim() !== "") return false; + if (document.querySelector("#CaptchaElement") != null && document.querySelector("#CaptchaElement").style.display === "none") return false; + if (document.querySelector("#vcode") != null && document.querySelector("#vcode").value.trim() !== "") return false; PassCheck.style.display = "none"; ErrorElement.style.display = "block"; ErrorMessage.style.color = "red"; @@ -4489,7 +4489,7 @@ async function main() { ErrorMessage.innerText = "当前评测队列繁忙，请先填写上方的验证码。"; Submit.disabled = false; Submit.value = "提交"; - document.querySelector("#vcode").focus(); + if (document.querySelector("#vcode") != null) document.querySelector("#vcode").focus(); return true; }; if (NativeCaptchaShown) { @@ -4593,7 +4593,7 @@ async function main() { // Retrying cannot help here: the answer that was sent has already been spent. if (SubmitPage.indexOf("验证码错误") !== -1) { await RefreshCaptcha(""); - document.querySelector("#vcode").focus(); + if (document.querySelector("#vcode") != null) document.querySelector("#vcode").focus(); return {Success: false, Message: "验证码错误！请填写上方的验证码后重新提交。"}; } if (SubmitPage.indexOf("请勿重复提交") === -1) { @@ -4617,10 +4617,10 @@ async function main() { // here as well as in the 提交 handler above. if (CaptchaIsMissing()) return; ErrorElement.style.display = "none"; - document.querySelector("#Submit").disabled = true; - document.querySelector("#Submit").value = "正在提交..."; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = true; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "正在提交..."; let o2Switch = "&enable_O2=on"; - if (!document.querySelector("#enable_O2").checked) o2Switch = ""; + if (document.querySelector("#enable_O2") != null && !document.querySelector("#enable_O2").checked) o2Switch = ""; await fetch("https://www.xmoj.tech/submit.php", { "headers": { "content-type": "application/x-www-form-urlencoded" @@ -4651,7 +4651,7 @@ async function main() { ErrorMessage.innerText = "验证码错误！请填写上方的验证码后重新提交。"; Submit.disabled = false; Submit.value = "提交"; - document.querySelector("#vcode").focus(); + if (document.querySelector("#vcode") != null) document.querySelector("#vcode").focus(); return; } if (UtilityEnabled("DebugMode")) { @@ -4675,8 +4675,8 @@ async function main() { Submit.addEventListener("click", async () => { PassCheck.style.display = "none"; ErrorElement.style.display = "none"; - document.querySelector("#Submit").disabled = true; - document.querySelector("#Submit").value = "正在检查..."; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = true; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "正在检查..."; if (CaptchaIsMissing()) return; let Source = CodeMirrorElement.getValue(); let PID = 0; @@ -4754,8 +4754,8 @@ async function main() { pre.textContent = 'freopen("' + IOFilename + '.in", "r", stdin);\nfreopen("' + IOFilename + '.out", "w", stdout);'; codeHost.appendChild(pre); } - document.querySelector("#Submit").disabled = false; - document.querySelector("#Submit").value = "提交"; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = false; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "提交"; return false; } else if (RegExp("//.*freopen").test(Source)) { PassCheck.style.display = ""; @@ -4768,8 +4768,8 @@ async function main() { } } ErrorMessage.innerText = "请不要注释freopen语句"; - document.querySelector("#Submit").disabled = false; - document.querySelector("#Submit").value = "提交"; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = false; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "提交"; return false; } } @@ -4784,8 +4784,8 @@ async function main() { } } ErrorMessage.innerText = "源代码为空"; - document.querySelector("#Submit").disabled = false; - document.querySelector("#Submit").value = "提交"; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = false; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "提交"; return false; } if (UtilityEnabled("CompileError")) { @@ -4812,8 +4812,8 @@ async function main() { } } ErrorMessage.innerText = "编译错误：\n" + Response.stderr.trim(); - document.querySelector("#Submit").disabled = false; - document.querySelector("#Submit").value = "提交"; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").disabled = false; + if (document.querySelector("#Submit") != null) document.querySelector("#Submit").value = "提交"; return false; } else { PassCheck.click(); @@ -4825,7 +4825,7 @@ async function main() { } else if (location.pathname == "/modifypage.php") { if (SearchParams.get("ByUserScript") != null) { document.title = "XMOJ-Script 更新日志"; - document.querySelector("body > div > div.mt-3").innerHTML = ""; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = ""; await fetch(ServerURL + "/Update.json", {cache: "no-cache"}) .then((Response) => { return Response.json(); @@ -4835,7 +4835,7 @@ async function main() { let Version = Object.keys(Response.UpdateHistory)[i]; let Data = Response.UpdateHistory[Version]; let UpdateDataCard = document.createElement("div"); - document.querySelector("body > div > div.mt-3").appendChild(UpdateDataCard); + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").appendChild(UpdateDataCard); UpdateDataCard.className = "card mb-3"; if (Data.Prerelease) UpdateDataCard.classList.add("text-secondary"); let UpdateDataCardBody = document.createElement("div"); @@ -4885,7 +4885,7 @@ async function main() { let AtcoderAccount = document.getElementsByName("acc_atc")[0].value; let USACOAccount = document.getElementsByName("acc_usaco")[0].value; let LuoguAccount = document.getElementsByName("acc_luogu")[0].value; - document.querySelector("body > div > div").innerHTML = `
    + if (document.querySelector("body > div > div") != null) document.querySelector("body > div > div").innerHTML = `
    @@ -4988,12 +4988,12 @@ async function main() { }); ModifyInfo.addEventListener("click", async () => { ModifyInfo.disabled = true; - ModifyInfo.querySelector("span").style.display = ""; + if (ModifyInfo.querySelector("span") != null) ModifyInfo.querySelector("span").style.display = ""; ErrorElement.style.display = "none"; SuccessElement.style.display = "none"; - let BadgeContent = document.querySelector("#BadgeContent").value; - let BadgeBackgroundColor = document.querySelector("#BadgeBackgroundColor").value; - let BadgeColor = document.querySelector("#BadgeColor").value; + let BadgeContent = (document.querySelector("#BadgeContent") != null) ? document.querySelector("#BadgeContent").value : ""; + let BadgeBackgroundColor = (document.querySelector("#BadgeBackgroundColor") != null) ? document.querySelector("#BadgeBackgroundColor").value : ""; + let BadgeColor = (document.querySelector("#BadgeColor") != null) ? document.querySelector("#BadgeColor").value : ""; await new Promise((Resolve) => { RequestAPI("EditBadge", { "UserID": String(CurrentUsername), @@ -5005,22 +5005,22 @@ async function main() { Resolve(); } else { ModifyInfo.disabled = false; - ModifyInfo.querySelector("span").style.display = "none"; + if (ModifyInfo.querySelector("span") != null) ModifyInfo.querySelector("span").style.display = "none"; ErrorElement.style.display = "block"; ErrorElement.innerText = Response.Message; } }); }); - let Nickname = document.querySelector("#Nickname").value; - let OldPassword = document.querySelector("#OldPassword").value; - let NewPassword = document.querySelector("#NewPassword").value; - let NewPasswordAgain = document.querySelector("#NewPasswordAgain").value; - let School = document.querySelector("#School").value; - let EmailAddress = document.querySelector("#EmailAddress").value; - let CodeforcesAccount = document.querySelector("#CodeforcesAccount").value; - let AtcoderAccount = document.querySelector("#AtcoderAccount").value; - let USACOAccount = document.querySelector("#USACOAccount").value; - let LuoguAccount = document.querySelector("#LuoguAccount").value; + let Nickname = (document.querySelector("#Nickname") != null) ? document.querySelector("#Nickname").value : ""; + let OldPassword = (document.querySelector("#OldPassword") != null) ? document.querySelector("#OldPassword").value : ""; + let NewPassword = (document.querySelector("#NewPassword") != null) ? document.querySelector("#NewPassword").value : ""; + let NewPasswordAgain = (document.querySelector("#NewPasswordAgain") != null) ? document.querySelector("#NewPasswordAgain").value : ""; + let School = (document.querySelector("#School") != null) ? document.querySelector("#School").value : ""; + let EmailAddress = (document.querySelector("#EmailAddress") != null) ? document.querySelector("#EmailAddress").value : ""; + let CodeforcesAccount = (document.querySelector("#CodeforcesAccount") != null) ? document.querySelector("#CodeforcesAccount").value : ""; + let AtcoderAccount = (document.querySelector("#AtcoderAccount") != null) ? document.querySelector("#AtcoderAccount").value : ""; + let USACOAccount = (document.querySelector("#USACOAccount") != null) ? document.querySelector("#USACOAccount").value : ""; + let LuoguAccount = (document.querySelector("#LuoguAccount") != null) ? document.querySelector("#LuoguAccount").value : ""; await fetch("https://www.xmoj.tech/modify.php", { "headers": { "content-type": "application/x-www-form-urlencoded" @@ -5030,12 +5030,12 @@ async function main() { "body": "nick=" + encodeURIComponent(Nickname) + "&" + "opassword=" + encodeURIComponent(OldPassword) + "&" + "npassword=" + encodeURIComponent(NewPassword) + "&" + "rptpassword=" + encodeURIComponent(NewPasswordAgain) + "&" + "school=" + encodeURIComponent(School) + "&" + "email=" + encodeURIComponent(EmailAddress) + "&" + "acc_cf=" + encodeURIComponent(CodeforcesAccount) + "&" + "acc_atc=" + encodeURIComponent(AtcoderAccount) + "&" + "acc_usaco=" + encodeURIComponent(USACOAccount) + "&" + "acc_luogu=" + encodeURIComponent(LuoguAccount) }); ModifyInfo.disabled = false; - ModifyInfo.querySelector("span").style.display = "none"; + if (ModifyInfo.querySelector("span") != null) ModifyInfo.querySelector("span").style.display = "none"; SuccessElement.style.display = "block"; }); if (UtilityEnabled("ExportACCode")) { let ExportACCode = document.createElement("button"); - document.querySelector("body > div.container > div").appendChild(ExportACCode); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(ExportACCode); ExportACCode.innerText = "导出AC代码"; ExportACCode.className = "btn btn-outline-secondary"; ExportACCode.addEventListener("click", () => { @@ -5103,10 +5103,10 @@ async function main() { Temp[i].remove(); } } - eval(document.querySelector("body > script:nth-child(5)").innerHTML); - document.querySelector("#statics > tbody > tr:nth-child(1)").remove(); + if (document.querySelector("body > script:nth-child(5)") != null) eval(document.querySelector("body > script:nth-child(5)").innerHTML); + if (document.querySelector("#statics > tbody > tr:nth-child(1)") != null) document.querySelector("#statics > tbody > tr:nth-child(1)").remove(); - let Temp = document.querySelector("#statics > tbody").children; + let Temp = (document.querySelector("#statics > tbody") != null) ? document.querySelector("#statics > tbody").children : []; for (let i = 0; i < Temp.length; i++) { if (Temp[i].children[0] != undefined) { if (Temp[i].children[0].innerText == "Statistics") { @@ -5118,18 +5118,18 @@ async function main() { } } - Temp = document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)").childNodes; + Temp = (document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)") != null) ? document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)").childNodes : []; let ACProblems = []; for (let i = 0; i < Temp.length; i++) { if (Temp[i].tagName == "A" && Temp[i].href.indexOf("problem.php?id=") != -1) { ACProblems.push(Number(Temp[i].innerText.trim())); } } - document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)").remove(); + if (document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)") != null) document.querySelector("#statics > tbody > tr:nth-child(1) > td:nth-child(3)").remove(); let UserID, UserNick; - [UserID, UserNick] = document.querySelector("#statics > caption").childNodes[0].data.trim().split("--"); - document.querySelector("#statics > caption").remove(); + if (document.querySelector("#statics > caption") != null) [UserID, UserNick] = document.querySelector("#statics > caption").childNodes[0].data.trim().split("--"); + if (document.querySelector("#statics > caption") != null) document.querySelector("#statics > caption").remove(); document.title = "用户 " + UserID + " 的个人中心"; let Row = document.createElement("div"); Row.className = "row"; @@ -5245,11 +5245,11 @@ async function main() { for (let i = 0; i < ACProblems.length; i++) { RightDiv.innerHTML += "" + ACProblems[i] + " "; } - document.querySelector("body > div > div").innerHTML = ""; - document.querySelector("body > div > div").appendChild(Row); + if (document.querySelector("body > div > div") != null) document.querySelector("body > div > div").innerHTML = ""; + if (document.querySelector("body > div > div") != null) document.querySelector("body > div > div").appendChild(Row); } else { document.title = "上传标程"; - document.querySelector("body > div > div.mt-3").innerHTML = ` + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = `
    0%
    @@ -5275,7 +5275,7 @@ async function main() { return Response.text(); }).then((Response) => { let ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - let ScriptData = ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText; + let ScriptData = (ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script") != null) ? ParsedDocument.querySelector("#statics > tbody > tr:nth-child(2) > td:nth-child(3) > script").innerText : ""; ScriptData = ScriptData.substr(ScriptData.indexOf("}") + 1).trim(); ScriptData = ScriptData.split(";"); for (let i = 0; i < ScriptData.length; i++) { @@ -5320,32 +5320,32 @@ async function main() { } else if (location.pathname == "/comparesource.php") { if (UtilityEnabled("CompareSource")) { if (location.search == "") { - document.querySelector("body > div.container > div").innerHTML = ""; + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").innerHTML = ""; let LeftCodeText = document.createElement("span"); - document.querySelector("body > div.container > div").appendChild(LeftCodeText); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(LeftCodeText); LeftCodeText.innerText = "左侧代码的运行编号："; let LeftCode = document.createElement("input"); - document.querySelector("body > div.container > div").appendChild(LeftCode); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(LeftCode); LeftCode.classList.add("form-control"); LeftCode.style.width = "40%"; LeftCode.style.marginBottom = "5px"; let RightCodeText = document.createElement("span"); - document.querySelector("body > div.container > div").appendChild(RightCodeText); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(RightCodeText); RightCodeText.innerText = "右侧代码的运行编号："; let RightCode = document.createElement("input"); - document.querySelector("body > div.container > div").appendChild(RightCode); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(RightCode); RightCode.classList.add("form-control"); RightCode.style.width = "40%"; RightCode.style.marginBottom = "5px"; let CompareButton = document.createElement("button"); - document.querySelector("body > div.container > div").appendChild(CompareButton); + if (document.querySelector("body > div.container > div") != null) document.querySelector("body > div.container > div").appendChild(CompareButton); CompareButton.innerText = "比较"; CompareButton.className = "btn btn-primary"; CompareButton.addEventListener("click", () => { location.href = "https://www.xmoj.tech/comparesource.php?left=" + Number(LeftCode.value) + "&right=" + Number(RightCode.value); }); } else { - document.querySelector("body > div > div.mt-3").innerHTML = ` + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = `
    @@ -5391,7 +5391,7 @@ async function main() { } } else if (location.pathname == "/loginpage.php") { if (UtilityEnabled("NewBootstrap")) { - document.querySelector("#login").innerHTML = ` + if (document.querySelector("#login") != null) document.querySelector("#login").innerHTML = `
    @@ -5421,7 +5421,7 @@ async function main() { let ErrorText = document.createElement("div"); ErrorText.style.color = "red"; ErrorText.style.marginBottom = "5px"; - document.querySelector("#login").appendChild(ErrorText); + if (document.querySelector("#login") != null) document.querySelector("#login").appendChild(ErrorText); let LoginButton = document.getElementsByName("submit")[0]; LoginButton.addEventListener("click", async () => { let Username = document.getElementsByName("user_id")[0].value; @@ -5472,14 +5472,14 @@ async function main() { (async () => { let Credential = await getCredential(); if (Credential) { - document.querySelector("#login > div:nth-child(1) > div > input").value = Credential.id; - document.querySelector("#login > div:nth-child(2) > div > input").value = Credential.password; + if (document.querySelector("#login > div:nth-child(1) > div > input") != null) document.querySelector("#login > div:nth-child(1) > div > input").value = Credential.id; + if (document.querySelector("#login > div:nth-child(2) > div > input") != null) document.querySelector("#login > div:nth-child(2) > div > input").value = Credential.password; LoginButton.click(); } })(); } } else if (location.pathname == "/contest_video.php" || location.pathname == "/problem_video.php") { - let ScriptData = document.querySelector("body > div > div.mt-3 > center > script").innerHTML; + let ScriptData = (document.querySelector("body > div > div.mt-3 > center > script") != null) ? document.querySelector("body > div > div.mt-3 > center > script").innerHTML : ""; if (document.getElementById("J_prismPlayer0").innerHTML != "") { document.getElementById("J_prismPlayer0").innerHTML = ""; if (player) { @@ -5530,15 +5530,15 @@ async function main() { DownloadButton.innerText = "下载"; DownloadButton.href = Response.PlayInfoList.PlayInfo[0].PlayURL; DownloadButton.download = Response.VideoBase.Title; - document.querySelector("body > div > div.mt-3 > center").appendChild(DownloadButton); + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").appendChild(DownloadButton); }); } } else if (location.pathname == "/reinfo.php") { document.title = "测试点信息: " + SearchParams.get("sid"); if (document.querySelector("#results > div") == undefined) { - document.querySelector("#results").parentElement.innerHTML = "没有测试点信息"; + if (document.querySelector("#results") != null) document.querySelector("#results").parentElement.innerHTML = "没有测试点信息"; } else { - for (let i = 0; i < document.querySelector("#results > div").children.length; i++) { + for (let i = 0; document.querySelector("#results > div") != null && i < document.querySelector("#results > div").children.length; i++) { let CurrentElement = document.querySelector("#results > div").children[i].children[0].children[0].children[0]; let Temp = CurrentElement.innerText.substring(0, CurrentElement.innerText.length - 2).split("/"); CurrentElement.innerText = TimeToStringTime(Temp[0]) + "/" + SizeToStringSize(Temp[1]); @@ -6070,7 +6070,7 @@ cerr< { let ParsedDocument = new DOMParser().parseFromString(Response, "text/html"); - return ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText; + return (ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)") != null) ? ParsedDocument.querySelector("#result-tab > tbody > tr:nth-child(1) > td:nth-child(2)").innerText : ""; }); await new Promise((Resolve) => { @@ -6150,7 +6150,7 @@ cerr< div").appendChild(Container); + if (document.querySelector("body > div") != null) document.querySelector("body > div").appendChild(Container); Container.className = "mt-3"; Container.appendChild(SoftwareList); if (UtilityEnabled("NewDownload")) { @@ -6220,26 +6220,26 @@ cerr< div > div.mt-3 > center").insertBefore(document.querySelector("#statics"), document.querySelector("body > div > div.mt-3 > center > table")); - document.querySelector("body > div > div.mt-3 > center").insertBefore(document.querySelector("#problemstatus"), document.querySelector("body > div > div.mt-3 > center > table")); + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").insertBefore(document.querySelector("#statics"), document.querySelector("body > div > div.mt-3 > center > table")); + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").insertBefore(document.querySelector("#problemstatus"), document.querySelector("body > div > div.mt-3 > center > table")); - document.querySelector("body > div > div.mt-3 > center > table:nth-child(3)").remove(); - let Temp = document.querySelector("#statics").rows; + if (document.querySelector("body > div > div.mt-3 > center > table:nth-child(3)") != null) document.querySelector("body > div > div.mt-3 > center > table:nth-child(3)").remove(); + let Temp = (document.querySelector("#statics") != null) ? document.querySelector("#statics").rows : []; for (let i = 0; i < Temp.length; i++) { Temp[i].removeAttribute("class"); } - document.querySelector("#problemstatus > thead > tr").innerHTML = document.querySelector("#problemstatus > thead > tr").innerHTML.replaceAll("td", "th"); - document.querySelector("#problemstatus > thead > tr > th:nth-child(2)").innerText = "运行编号"; - document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); - document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); - document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); - document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); - Temp = document.querySelector("#problemstatus > thead > tr").children; + if (document.querySelector("#problemstatus > thead > tr") != null) document.querySelector("#problemstatus > thead > tr").innerHTML = document.querySelector("#problemstatus > thead > tr").innerHTML.replaceAll("td", "th"); + if (document.querySelector("#problemstatus > thead > tr > th:nth-child(2)") != null) document.querySelector("#problemstatus > thead > tr > th:nth-child(2)").innerText = "运行编号"; + if (document.querySelector("#problemstatus > thead > tr > th:nth-child(4)") != null) document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); + if (document.querySelector("#problemstatus > thead > tr > th:nth-child(4)") != null) document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); + if (document.querySelector("#problemstatus > thead > tr > th:nth-child(4)") != null) document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); + if (document.querySelector("#problemstatus > thead > tr > th:nth-child(4)") != null) document.querySelector("#problemstatus > thead > tr > th:nth-child(4)").remove(); + Temp = (document.querySelector("#problemstatus > thead > tr") != null) ? document.querySelector("#problemstatus > thead > tr").children : []; for (let i = 0; i < Temp.length; i++) { Temp[i].removeAttribute("class"); } - Temp = document.querySelector("#problemstatus > tbody").children; + Temp = (document.querySelector("#problemstatus > tbody") != null) ? document.querySelector("#problemstatus > tbody").children : []; for (let i = 0; i < Temp.length; i++) { if (Temp[i].children[5].children[0] != null) { Temp[i].children[1].innerHTML = `${escapeHTML(Temp[i].children[1].innerText.trim())}`; @@ -6260,14 +6260,14 @@ cerr<«
  • ` + (CurrentPage)}
    • `; } Pagination += `
  • ` + (CurrentPage + 1)}
    • `; - if (document.querySelector("#problemstatus > tbody").children != null && document.querySelector("#problemstatus > tbody").children.length == 20) { + if (document.querySelector("#problemstatus > tbody") != null && document.querySelector("#problemstatus > tbody").children != null && document.querySelector("#problemstatus > tbody").children.length == 20) { Pagination += `
  • ` + (CurrentPage + 2) + `
  • »
    • `; } Pagination += ``; - document.querySelector("body > div > div.mt-3 > center").innerHTML += Pagination; + if (document.querySelector("body > div > div.mt-3 > center") != null) document.querySelector("body > div > div.mt-3 > center").innerHTML += Pagination; } else if (location.pathname == "/problem_solution.php") { if (UtilityEnabled("RemoveUseless")) { - document.querySelector("h2.lang_en").remove(); //fixes #332 + if (document.querySelector("h2.lang_en") != null) document.querySelector("h2.lang_en").remove(); //fixes #332 } if (UtilityEnabled("CopyMD")) { await fetch(location.href).then((Response) => { @@ -6279,7 +6279,7 @@ cerr< div > div.mt-3 > center > h2").appendChild(CopyMDButton); + if (document.querySelector("body > div > div.mt-3 > center > h2") != null) document.querySelector("body > div > div.mt-3 > center > h2").appendChild(CopyMDButton); CopyMDButton.addEventListener("click", () => { GM_setClipboard(GetMDText(ParsedDocument.querySelector("body > div > div > div")).trim().replaceAll("\n\t", "\n").replaceAll("\n\n", "\n")); CopyMDButton.innerText = "复制成功"; @@ -6304,7 +6304,7 @@ cerr< div > div.mt-3 > div > div.col-md-8").children; + let Temp = (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) ? document.querySelector("body > div > div.mt-3 > div > div.col-md-8").children : []; let NewsData = []; for (let i = 0; i < Temp.length; i += 2) { let Title = Temp[i].children[0].innerText; @@ -6315,7 +6315,7 @@ cerr< div > div.mt-3 > div > div.col-md-8").innerHTML = ""; + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-8").innerHTML = ""; for (let i = 0; i < NewsData.length; i++) { let NewsRow = document.createElement("div"); NewsRow.className = "cnt-row"; @@ -6330,11 +6330,11 @@ cerr< div > div.mt-3 > div > div.col-md-8").appendChild(NewsRow); + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-8") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-8").appendChild(NewsRow); } - let MyContestData = document.querySelector("body > div > div.mt-3 > div > div.col-md-4 > div:nth-child(2)").innerHTML; - let CountDownData = document.querySelector("#countdown_list").innerHTML; - document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML = `
    + let MyContestData = (document.querySelector("body > div > div.mt-3 > div > div.col-md-4 > div:nth-child(2)") != null) ? document.querySelector("body > div > div.mt-3 > div > div.col-md-4 > div:nth-child(2)").innerHTML : ""; + let CountDownData = (document.querySelector("#countdown_list") != null) ? document.querySelector("#countdown_list").innerHTML : ""; + if (document.querySelector("body > div > div.mt-3 > div > div.col-md-4") != null) document.querySelector("body > div > div.mt-3 > div > div.col-md-4").innerHTML = `
    我的月赛
    ${MyContestData}
    @@ -6370,7 +6370,7 @@ cerr< div > div.mt-3").innerHTML = ``; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = ``; CodeMirror.fromTextArea(document.querySelector("body > div > div.mt-3 > textarea"), { lineNumbers: true, mode: "text/x-c++src", @@ -6384,10 +6384,10 @@ cerr< { let ParsedDocument = new DOMParser().parseFromString(Result, "text/html"); if (!ParsedDocument.getElementsByClassName("jumbotron")[0].innerHTML.includes('I am sorry, You could not view this message!')) { - document.querySelector("body > div > div.mt-3").innerHTML = ""; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = ""; let CodeElement = document.createElement("div"); CodeElement.className = "mb-3"; - document.querySelector("body > div > div.mt-3").appendChild(CodeElement); + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").appendChild(CodeElement); CodeMirror(CodeElement, { value: ParsedDocument.getElementById("errtxt").innerHTML.replaceAll("<", "<").replaceAll(">", ">"), lineNumbers: true, @@ -6405,11 +6405,11 @@ cerr< div > div.mt-3").innerHTML = ""; + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = ""; for (let i = 0; i < Temp.length; i++) { let CodeElement = document.createElement("div"); CodeElement.className = "mb-3"; - document.querySelector("body > div > div.mt-3").appendChild(CodeElement); + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").appendChild(CodeElement); CodeMirror(CodeElement, { value: Temp[i].innerText, lineNumbers: true, @@ -6425,7 +6425,7 @@ cerr< div > div.mt-3").innerHTML = `
    + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = `
    @@ -6522,7 +6522,7 @@ cerr< div > div.mt-3").innerHTML = `
    + if (document.querySelector("body > div > div.mt-3") != null) document.querySelector("body > div > div.mt-3").innerHTML = `
    @@ -6681,7 +6681,7 @@ cerr< div > div").innerHTML = `

    讨论列表${(isNaN(ProblemID) ? "" : ` - 题目` + ProblemID)}

    + if (document.querySelector("body > div > div") != null) document.querySelector("body > div > div").innerHTML = `

    讨论列表${(isNaN(ProblemID) ? "" : ` - 题目` + ProblemID)}