Merge branch 'master' of https://github.com/syzoj/syzoj

6 years ago · d935fdffca
26 changed files with 501 additions and 223 deletions
--- a/README.en.md
+++ b/README.en.md
@ -1,4 +1,5 @@
-# SYZOJ 2
+<p align="center"><img src="static/syzoj.svg" width="250"></p>
+
 [中文](README.md) | English

 An online judge system for algorithm competition.
--- a/README.md
+++ b/README.md
@ -1,4 +1,5 @@
-# SYZOJ 2
+<p align="center"><img src="static/syzoj.svg" width="250"></p>
+
 中文 | [English](README.en.md)

 一个用于算法竞赛的在线评测系统。
--- a/app.js
+++ b/app.js
@ -11,6 +11,7 @@ const options = commandLineArgs(optionDefinitions);
 global.syzoj = {
  rootDir: __dirname,
  config: require('object-assign-deep')({}, require('./config-example.json'), require(options.config)),
+  languages: require('./language-config.json'),
  configDir: options.config,
  models: [],
  modules: [],
--- a/config-example.json
+++ b/config-example.json
@ -5,7 +5,7 @@
  "db": {
    "database": "syzoj",
    "username": "syzoj",
-    "password": null,
+    "password": "@DATABASE_PASSWORD@",
    "host": "127.0.0.1"
  },
  "logo": {
@ -65,112 +65,52 @@
    "edit_contest_problem_list": 10,
    "edit_problem_tag_list": 10
  },
-  "languages": {
-    "cpp": {
-      "show": "C++",
-      "highlight": "cpp",
-      "version": "GCC 5.4.0",
-      "editor": "c_cpp"
-    },
-    "cpp11": {
-      "show": "C++11",
-      "highlight": "cpp",
-      "version": "GCC 5.4.0",
-      "editor": "c_cpp"
-    },
-    "csharp": {
-      "show": "C#",
-      "highlight": "csharp",
-      "version": "MCS 4.8.0.0, Mono 4.8.0",
-      "editor": "csharp"
-    },
-    "c": {
-      "show": "C",
-      "highlight": "c",
-      "version": "GCC 5.4.0",
-      "editor": "c_cpp"
-    },
-    "vala": {
-      "show": "Vala",
-      "highlight": "vala",
-      "version": "Vala 0.30.1, GCC 5.4.0",
-      "editor": "vala"
-    },
-    "java": {
-      "show": "Java",
-      "highlight": "java",
-      "version": "GCC 5.4.0",
-      "editor": "java"
-    },
-    "pascal": {
-      "show": "Pascal",
-      "highlight": "pascal",
-      "version": "FPC 3.0.0",
-      "editor": "pascal"
-    },
-    "lua": {
-      "show": "Lua",
-      "highlight": "lua",
-      "version": "Lua 5.2.4",
-      "editor": "lua"
-    },
-    "luajit": {
-      "show": "LuaJIT",
-      "highlight": "lua",
-      "version": "LuaJIT 2.0.4",
-      "editor": "lua"
-    },
-    "python2": {
-      "show": "Python 2",
-      "highlight": "python",
-      "version": "CPython 2.7.12",
-      "editor": "python"
-    },
-    "python3": {
-      "show": "Python 3",
-      "highlight": "python",
-      "version": "CPython 3.5.2",
-      "editor": "python"
-    },
-    "nodejs": {
-      "show": "Node.js",
-      "highlight": "js",
-      "version": "7.7.3",
-      "editor": "javascript"
-    },
-    "ruby": {
-      "show": "Ruby",
-      "highlight": "ruby",
-      "version": "2.3.1",
-      "editor": "ruby"
-    },
-    "haskell": {
-      "show": "Haskell",
-      "highlight": "haskell",
-      "version": "GHC 7.10.3",
-      "editor": "haskell"
-    },
-    "ocaml": {
-      "show": "OCaml",
-      "highlight": "ocaml",
-      "version": "Ocamlbuild 4.02.3",
-      "editor": "ocaml"
-    },
-    "vbnet": {
-      "show": "Visual Basic",
-      "highlight": "vbnet",
-      "version": "VBNC 0.0.0.5943, Mono 4.8.0",
-      "editor": "vbscript"
-    }
-  },
+  "enabled_languages": [
+    "cpp",
+    "cpp11",
+    "cpp17",
+    "cpp-noilinux",
+    "cpp11-noilinux",
+    "cpp11-clang",
+    "cpp17-clang",
+    "c",
+    "c-noilinux",
+    "csharp",
+    "java",
+    "pascal",
+    "python2",
+    "python3",
+    "nodejs",
+    "ruby",
+    "haskell"
+  ],
+  "filter_enabled_languages": [
+    "cpp",
+    "cpp11",
+    "cpp17",
+    "cpp-noilinux",
+    "cpp11-noilinux",
+    "cpp11-clang",
+    "cpp17-clang",
+    "c",
+    "c-noilinux",
+    "csharp",
+    "java",
+    "pascal",
+    "python2",
+    "python3",
+    "nodejs",
+    "ruby",
+    "haskell"
+  ],
  "links": [
    {
      "title": "LibreOJ",
      "url": "https://loj.ac/"
    }
  ],
-  "session_secret": "233",
+  "session_secret": "@SESSION_SECRET@",
  "rabbitMQ": "amqp://localhost/",
-  "email_jwt_secret": "test",
+  "email_jwt_secret": "@EMAIL_JWT_SECRET@",
  "google_analytics": "UA-XXXXXXXX-X"
 }
--- a/language-config.json
+++ b/language-config.json
@ -0,0 +1,134 @@
+{
+  "cpp": {
+    "show": "C++",
+    "highlight": "cpp",
+    "version": "GCC 8.2.0",
+    "editor": "c_cpp"
+  },
+  "cpp11": {
+    "show": "C++ 11",
+    "highlight": "cpp",
+    "version": "GCC 8.2.0",
+    "editor": "c_cpp"
+  },
+  "cpp17": {
+    "show": "C++ 17",
+    "highlight": "cpp",
+    "version": "GCC 8.2.0",
+    "editor": "c_cpp"
+  },
+  "cpp-noilinux": {
+    "show": "C++ (NOI)",
+    "highlight": "cpp",
+    "version": "GCC 4.8.4 (NOILinux 1.4.1)",
+    "editor": "c_cpp"
+  },
+  "cpp11-noilinux": {
+    "show": "C++ 11 (NOI)",
+    "highlight": "cpp",
+    "version": "GCC 4.8.4 (NOILinux 1.4.1)",
+    "editor": "c_cpp"
+  },
+  "cpp11-clang": {
+    "show": "C++ 11 (Clang)",
+    "highlight": "cpp",
+    "version": "Clang 7.0.1",
+    "editor": "c_cpp"
+  },
+  "cpp17-clang": {
+    "show": "C++ 17 (Clang)",
+    "highlight": "cpp",
+    "version": "Clang 7.0.1",
+    "editor": "c_cpp"
+  },
+  "c": {
+    "show": "C",
+    "highlight": "c",
+    "version": "Clang 7.0.1",
+    "editor": "c_cpp"
+  },
+  "c-noilinux": {
+    "show": "C (NOI)",
+    "highlight": "c",
+    "version": "GCC 4.8.4 (NOILinux 1.4.1)",
+    "editor": "c_cpp"
+  },
+  "csharp": {
+    "show": "C#",
+    "highlight": "csharp",
+    "version": "Mono 5.16.0.220",
+    "editor": "csharp"
+  },
+  "vala": {
+    "show": "Vala",
+    "highlight": "vala",
+    "version": "Vala 0.40.8, Clang 7.0.1",
+    "editor": "vala"
+  },
+  "java": {
+    "show": "Java",
+    "highlight": "java",
+    "version": "OpenJDK 10.0.2",
+    "editor": "java"
+  },
+  "pascal": {
+    "show": "Pascal",
+    "highlight": "pascal",
+    "version": "Free Pascal 3.0.4",
+    "editor": "pascal"
+  },
+  "lua": {
+    "show": "Lua",
+    "highlight": "lua",
+    "version": "Lua 5.3.3",
+    "editor": "lua"
+  },
+  "luajit": {
+    "show": "LuaJIT",
+    "highlight": "lua",
+    "version": "LuaJIT 2.1.0",
+    "editor": "lua"
+  },
+  "python2": {
+    "show": "Python 2",
+    "highlight": "python",
+    "version": "PyPy 6.0.0 (Python 2.7.13)",
+    "editor": "python"
+  },
+  "python3": {
+    "show": "Python 3",
+    "highlight": "python",
+    "version": "PyPy 6.0.0 (Python 3.5.3)",
+    "editor": "python"
+  },
+  "nodejs": {
+    "show": "Node.js",
+    "highlight": "js",
+    "version": "10.14.0",
+    "editor": "javascript"
+  },
+  "ruby": {
+    "show": "Ruby",
+    "highlight": "ruby",
+    "version": "2.5.1",
+    "editor": "ruby"
+  },
+  "haskell": {
+    "show": "Haskell",
+    "highlight": "haskell",
+    "version": "GHC 8.6.2",
+    "editor": "haskell"
+  },
+  "ocaml": {
+    "show": "OCaml",
+    "highlight": "ocaml",
+    "version": "Ocaml 4.05.0",
+    "editor": "ocaml"
+  },
+  "vbnet": {
+    "show": "Visual Basic",
+    "highlight": "vbnet",
+    "version": "Mono 4.7",
+    "editor": "vbscript"
+  }
+}
--- a/libs/markdown.js
+++ b/libs/markdown.js
@ -35,10 +35,12 @@ let config = {
    highlight: require('./highlight')
 };

+let uuid = require('uuid');
+
 function render(s, cb) {
    if (!s.trim()) return cb('');

-    let mathCnt = 0, mathPending = 0, maths = new Array(), hlCnt = 0, hlPending = 0, hls = new Array(), res, callback, ss, cache = render.cache, cacheOption = render.cacheOption, finished = false;
+    let mathCnt = 0, mathPending = 0, maths = new Array(), mathID = new Array(), hlCnt = 0, hlPending = 0, hls = new Array(), hlID = new Array(), res, callback, ss, cache = render.cache, cacheOption = render.cacheOption, finished = false;
    if (cacheOption.result) {
        let x = cache.get('RES_' + s);
        if (x !== undefined) return cb(x);
@ -59,35 +61,38 @@ function render(s, cb) {
                if (cacheOption.highlight) cache.set('H_' + lang + '_' + code, res);
                if (!--hlPending) finish();
            });
-            return '<span id="hl-' + id + '"></span>';
+            return hlID[id] = uuid();
        },
        mathRenderer: function(str, display) {
-            if (cacheOption.math) {
-                let x = cache.get('M_' + display + '_' + str);
-                if (x !== undefined) return x;
+            let mathFinish = (error, result) => {
+                if (error) maths[id] = '<p><div style="display: inline-block; border: 1px solid #000; "><strong>' + error.toString() + '</strong></div></p>';
+                else if (display) maths[id] = '<p style="text-align: center; ">' + result + '</p>';
+                else maths[id] = result;
+                if (cacheOption.math) cache.set('M_' + display + '_' + str, maths[id]);
+                if (!--mathPending) finish();
            }
+
+            const id = mathCnt;
+            mathCnt++, mathPending++;
+
            try {
+                let x = cache.get('M_' + display + '_' + str);
+                if (x !== undefined) process.nextTick(() => mathFinish(null, x));
+                else {
                    let res = katex.renderToString(str, { displayMode: display });
-                if (cacheOption.math) cache.set('M_' + display + '_' + str, res);
-                return res;
+                    process.nextTick(() => mathFinish(null, '<span style="zoom: 1.01; ">' + res + '</span>'));
+                }
            } catch (e) {
-                const id = mathCnt;
-                mathCnt++, mathPending++;
                mj.typeset({
                    math: str,
                    format: display ? 'TeX' : 'inline-TeX',
-                    html: true, css: true,
+                    svg: true,
                    width: 0
-                }, function (data) {
-                    if (data.errors) maths[id] = '<p><div style="display: inline-block; border: 1px solid #000; "><strong>' + data.errors.toString() + '</strong></div></p>';
-                    else if (display) maths[id] = '<p style="text-align: center; ">' + data.html + '</p>';
-                    else maths[id] = data.html;
-                    if (cacheOption.math) cache.set('M_' + display + '_' + str, maths[id]);
-                    if (!--mathPending) finish();
+                }, data => {
+                    mathFinish(data.errors, data.svg);
                });
-
-                return '<span id="math-' + id + '"></span>';
            }
+            return mathID[id] = uuid();
        }
    });

@ -95,22 +100,40 @@ function render(s, cb) {
        if (finished || !res || mathPending || hlPending) return;
        finished = true;
        if (maths.length || hls.length) {
-            let x = new (require('jsdom').JSDOM)().window.document.createElement('div');
-            x.innerHTML = res;
            for (let i = 0; i < maths.length; i++) {
-              x.querySelector('#math-' + i).outerHTML = maths[i];
+              res = res.replace(mathID[i], maths[i]);
            }
            for (let i = 0; i < hls.length; i++) {
-              x.querySelector('#hl-' + i).outerHTML = hls[i];
+              res = res.replace(hlID[i], hls[i]);
            }
-            res = x.innerHTML;
        }
        if (cacheOption.result) cache.set('RES_' + s, res);
        cb(res);
    }

    try {
-        res = MoeMark(s);
+        let XSS = require('xss');
+        let CSSFilter = require('cssfilter');
+        let whiteList = Object.assign({}, require('xss/lib/default').whiteList);
+        delete whiteList.audio;
+        delete whiteList.video;
+        for (let tag in whiteList) whiteList[tag] = whiteList[tag].concat(['style', 'class']);
+        let xss = new XSS.FilterXSS({
+          whiteList: whiteList,
+          stripIgnoreTag: true,
+          onTagAttr: (tag, name, value, isWhiteAttr) => {
+            if (tag.toLowerCase() === 'img' && name.toLowerCase() === 'src' && value.startsWith('data:image/')) return name + '="' + XSS.escapeAttrValue(value) + '"';
+          }
+        });
+        let replaceXSS = s => {
+          s = xss.process(s);
+          if (s) {
+            s = `<div style="position: relative; overflow: hidden; ">${s}</div>`;
+          }
+          return s;
+        };
+
+        res = replaceXSS(MoeMark(s));
        if (mathPending == 0 && hlPending == 0) {
            finish();
        }
--- a/libs/submissions_process.js
+++ b/libs/submissions_process.js
@ -5,7 +5,7 @@ const getSubmissionInfo = (s, displayConfig) => ({
    userId: s.user_id,
    problemName: s.problem.title,
    problemId: s.problem_id,
-    language: displayConfig.showCode ? ((s.language != null && s.language !== '') ? syzoj.config.languages[s.language].show : null) : null,
+    language: displayConfig.showCode ? ((s.language != null && s.language !== '') ? syzoj.languages[s.language].show : null) : null,
    codeSize: displayConfig.showCode ? syzoj.utils.formatSize(s.code_length) : null,
    submitTime: syzoj.utils.formatDate(s.submit_time),
 });
@ -18,7 +18,8 @@ const getRoughResult = (x, displayConfig) => {
            return {
                result: x.status,
                time: displayConfig.showUsage ? x.total_time : null,
-                memory: displayConfig.showUsage ? x.max_memory : null,
+                memory: displayConfig.showUsage ? syzoj.utils.formatSize((x.max_memory * 1024) || 0, 2) : null,
+                precise_memory: displayConfig.showUsage ? x.max_memory : null,
                score: displayConfig.showScore ? x.score : null
            };
        }
--- a/modules/contest.js
+++ b/modules/contest.js
@ -412,7 +412,7 @@ app.get('/contest/submission/:id', async (req, res) => {

    if (judge.problem.type !== 'submit-answer') {
      judge.codeLength = judge.code.length;
-      judge.code = await syzoj.utils.highlight(judge.code, syzoj.config.languages[judge.language].highlight);
+      judge.code = await syzoj.utils.highlight(judge.code, syzoj.languages[judge.language].highlight);
    }

    res.render('submission', {
--- a/modules/problem.js
+++ b/modules/problem.js
@ -592,7 +592,7 @@ app.post('/problem/:id/submit', app.multer.fields([{ name: 'answer', maxCount: 1
    const curUser = res.locals.user;

    if (!problem) throw new ErrorMessage('无此题目。');
-    if (problem.type !== 'submit-answer' && !syzoj.config.languages[req.body.language]) throw new ErrorMessage('不支持该语言。');
+    if (problem.type !== 'submit-answer' && !syzoj.config.enabled_languages.includes(req.body.language)) throw new ErrorMessage('不支持该语言。');
    if (!curUser) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': syzoj.utils.makeUrl(['problem', id]) }) });

    let judge_state;
--- a/modules/submission.js
+++ b/modules/submission.js
@ -71,9 +71,9 @@ app.get('/submissions', async (req, res) => {
      if (req.query.problem_id) {
        let problem_id = parseInt(req.query.problem_id);
        let problem = await Problem.fromID(problem_id);
-        if(!problem)
+        if (!problem)
          throw new ErrorMessage("无此题目。");
-        if(await problem.isAllowedUseBy(res.locals.user)) {
+        if (await problem.isAllowedUseBy(res.locals.user)) {
          where.problem_id = {
            $and: [
              { $eq: where.problem_id = problem_id }
@ -91,6 +91,8 @@ app.get('/submissions', async (req, res) => {
      if (req.query.problem_id) where.problem_id = parseInt(req.query.problem_id) || -1;
    }

+    let isFiltered = !!(where.problem_id || where.user_id || where.score || where.language || where.status);
+
    let paginate = syzoj.utils.paginate(await JudgeState.count(where), req.query.page, syzoj.config.page.judge_state);
    let judge_state = await JudgeState.query(paginate, where, [['id', 'desc']], true);

@ -112,6 +114,7 @@ app.get('/submissions', async (req, res) => {
      pushType: 'rough',
      form: req.query,
      displayConfig: displayConfig,
+      isFiltered: isFiltered
    });
  } catch (e) {
    syzoj.log(e);
@ -144,7 +147,7 @@ app.get('/submission/:id', async (req, res) => {

    if (judge.problem.type !== 'submit-answer') {
      judge.codeLength = judge.code.length;
-      judge.code = await syzoj.utils.highlight(judge.code, syzoj.config.languages[judge.language].highlight);
+      judge.code = await syzoj.utils.highlight(judge.code, syzoj.languages[judge.language].highlight);
    }

    displayConfig.showRejudge = await judge.problem.isAllowedEditBy(res.locals.user);
--- a/package.json
+++ b/package.json
@ -24,7 +24,7 @@
  "homepage": "https://github.com/syzoj/syzoj#readme",
  "dependencies": {
    "amqplib": "^0.5.2",
-    "ansi-to-html": "^0.6.8",
+    "ansi-to-html": "^0.6.9",
    "async-lock": "^1.1.3",
    "body-parser": "^1.15.2",
    "cheerio": "^1.0.0-rc.1",
@ -36,31 +36,30 @@
    "express": "^4.14.0",
    "express-session": "^1.14.1",
    "file-size": "^1.0.0",
-    "fs-extra": "^7.0.0",
-    "gravatar": "^1.5.2",
+    "fs-extra": "^7.0.1",
+    "gravatar": "^1.8.0",
    "javascript-time-ago": "^1.0.30",
    "js-yaml": "^3.9.0",
-    "jsdom": "^13.0.0",
    "jsondiffpatch": "0.3.11",
-    "jsonwebtoken": "^8.3.0",
+    "jsonwebtoken": "^8.4.0",
    "katex": "^0.10.0",
    "mathjax-node": "^2.1.1",
    "moemark": "^0.3.10",
    "moment": "^2.15.0",
    "msgpack-lite": "^0.1.26",
    "multer": "^1.2.0",
-    "mysql2": "^1.6.2",
+    "mysql2": "^1.6.4",
    "node-7z": "^0.4.0",
-    "nodemailer": "^4.1.0",
+    "nodemailer": "^4.7.0",
    "object-assign-deep": "^0.4.0",
    "pygmentize-bundled-cached": "^1.1.0",
    "randomstring": "^1.1.5",
    "request": "^2.74.0",
    "request-promise": "^4.1.1",
    "sendmail": "^1.1.1",
-    "sequelize": "^4.41.0",
+    "sequelize": "^4.41.2",
    "session-file-store": "^1.0.0",
-    "socket.io": "^2.0.3",
+    "socket.io": "^2.2.0",
    "syzoj-divine": "^1.0.2",
    "tmp-promise": "^1.0.3",
    "waliyun": "^3.1.1",
--- a/static/style.css
+++ b/static/style.css
@ -300,3 +300,8 @@ code {
  font-size: 1em;
  vertical-align: initial;
 }
+
+.ui.selection.dropdown .menu>.item {
+  padding-left: 0.8rem !important;
+  padding-right: 0 !important;
+}
--- a/static/syzoj.svg
+++ b/static/syzoj.svg
@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="38.25193mm"
+   height="59.522903mm"
+   viewBox="0 0 38.25193 59.522903"
+   version="1.1"
+   id="svg8"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)"
+   sodipodi:docname="syzoj-with-text.svg"
+   inkscape:export-filename="/home/Menci/Pictures/syzoj.svg.png"
+   inkscape:export-xdpi="1383.14"
+   inkscape:export-ydpi="1383.14">
+  <defs
+     id="defs2" />
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="5.6"
+     inkscape:cx="77.829033"
+     inkscape:cy="105.88145"
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+    </g>
+  </g>
+</svg>
--- a/utility.js
+++ b/utility.js
@ -34,36 +34,6 @@ module.exports = {
    return path.resolve.apply(null, a);
  },
  markdown(obj, keys, noReplaceUI) {
-    let XSS = require('xss');
-    let CSSFilter = require('cssfilter');
-    let whiteList = Object.assign({}, require('xss/lib/default').whiteList);
-    delete whiteList.audio;
-    delete whiteList.video;
-    for (let tag in whiteList) whiteList[tag] = whiteList[tag].concat(['style', 'class']);
-    let xss = new XSS.FilterXSS({
-      css: {
-        whiteList: Object.assign({}, require('cssfilter/lib/default').whiteList, {
-          'vertical-align': true,
-          top: true,
-          bottom: true,
-          left: true,
-          right: true,
-          "white-space": true
-        })
-      },
-      whiteList: whiteList,
-      stripIgnoreTag: true,
-      onTagAttr: (tag, name, value, isWhiteAttr) => {
-        if (tag.toLowerCase() === 'img' && name.toLowerCase() === 'src' && value.startsWith('data:image/')) return name + '="' + XSS.escapeAttrValue(value) + '"';
-      }
-    });
-    let replaceXSS = s => {
-      s = xss.process(s);
-      if (s) {
-        s = `<div style="position: relative; overflow: hidden; ">${s}</div>`;
-      }
-      return s;
-    };
    let replaceUI = s => {
      if (noReplaceUI) return s;

@ -90,13 +60,13 @@ module.exports = {
      if (!keys) {
        if (!obj || !obj.trim()) resolve("");
        else markdownRenderer(obj, s => {
-            resolve(replaceUI(replaceXSS(s)));
+            resolve(replaceUI(s));
        });
      } else {
        let res = obj, cnt = keys.length;
        for (let key of keys) {
          markdownRenderer(res[key], (s) => {
-            res[key] = replaceUI(replaceXSS(s));
+            res[key] = replaceUI(s);
            if (!--cnt) resolve(res);
          });
        }
@ -121,8 +91,8 @@ module.exports = {
    }
    return sgn + util.format('%s:%s:%s', toStringWithPad(x / 3600), toStringWithPad(x / 60 % 60), toStringWithPad(x % 60));
  },
-  formatSize(x) {
-    let res = filesize(x, { fixed: 1 }).calculate();
+  formatSize(x, precision) {
+    let res = filesize(x, { fixed: precision || 1 }).calculate();
    if (res.result === parseInt(res.result)) res.fixed = res.result.toString();
    if (res.suffix.startsWith('Byte')) res.suffix = 'B';
    else res.suffix = res.suffix.replace('iB', '');
--- a/views/admin_rejudge.ejs
+++ b/views/admin_rejudge.ejs
@ -19,8 +19,8 @@
        <div class="menu">
          <div class="item" data-value="">不限</div>
          <div class="item" data-value="submit-answer">提交答案</div>
-          <% for (let lang in syzoj.config.languages) { %>
-            <div class="item" data-value="<%= lang %>"><%= syzoj.config.languages[lang].show %></div>
+          <% for (let lang of syzoj.config.filter_enabled_languages) { %>
+            <div class="item" data-value="<%= lang %>"><%= syzoj.languages[lang].show %></div>
          <% } %>
        </div>
      </div>
--- a/views/article.ejs
+++ b/views/article.ejs
@ -63,7 +63,7 @@
          <div class="metadata">
            <span class="date"><%= syzoj.utils.formatDate(comment.public_time) %></span>
          </div>
-          <div class="text font-content"><%- comment.content %></div>
+          <div class="text font-content" style="min-height: 19.5px; "><%- comment.content %></div>
          <% if (comment.allowedEdit) { %>
            <div class="actions"><a onclick="$('#modal-delete-<%= comment.id %>').modal('show')">删除</a></div>
            <div class="ui basic modal" id="modal-delete-<%= comment.id %>">
--- a/views/footer.ejs
+++ b/views/footer.ejs
@ -1,5 +1,5 @@
 </div>
-    <div class="ui vertical footer segment" style="margin-top: 10px; ">
+    <div class="ui vertical footer segment" style="margin-top: 15px; ">
      <div class="ui center aligned container">
        <span style="color: #999;"><%= syzoj.config.title %> Powered by <a href="https://github.com/syzoj/syzoj" target="_blank">SYZOJ</a>.</span>
      </div>
--- a/views/header.ejs
+++ b/views/header.ejs
@ -11,7 +11,7 @@
    <link href="/mathjax.css?20181105" rel="stylesheet">
    <link href="https://cdnjs.loli.net/ajax/libs/KaTeX/0.10.0/katex.min.css" rel="stylesheet">
    <link href="https://cdnjs.loli.net/ajax/libs/morris.js/0.5.1/morris.css" rel="stylesheet">
-    <link href="/style.css?20181108" rel="stylesheet">
+    <link href="/style.css?2018110801" rel="stylesheet">
    <link href="https://fonts.loli.net/css?family=Fira+Mono" rel="stylesheet">
    <link href="https://fonts.loli.net/css?family=Lato:400,700,400italic,700italic&subset=latin" rel="stylesheet">
    <link href="https://fonts.loli.net/css?family=Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i&amp;subset=latin-ext" rel="stylesheet">
--- a/views/help.ejs
+++ b/views/help.ejs
@ -5,11 +5,11 @@
    <div style="font-content">
        <h2 class="ui header">评测</h2>
        <p>
-            C++ 使用 <code>g++</code> 编译，命令为 &nbsp;<code>g++ source_file.cpp -o exec_file -O2 -lm -DONLINE_JUDGE -mx32</code>；
-            <br> C 使用 <code>gcc</code> 编译，命令为 &nbsp;<code>gcc source_file.c -o exec_file -O2 -lm -DONLINE_JUDGE -mx32</code>；
+            C++ 使用 <code>clang++</code> 或 <code>g++</code> 编译，命令形如 &nbsp;<code>clang++/g++ source_file.cpp -o exec_file -O2 -lm -DONLINE_JUDGE -mx32 -std=c++03</code>（对于 C++ 11 和 C++ 17，替换命令中的 <code>-std=</code> 参数）；
+            <br> C 使用 <code>clang</code> 编译，命令为 &nbsp;<code>clang source_file.c -o exec_file -O2 -lm -DONLINE_JUDGE -mx32</code>；
            <br> Pascal 使用 <code>fpc</code> 编译，命令为 &nbsp;<code>fpc source_file.pas -O2</code>。
            <br> Java 编译时会自动检测您的代码中 <code>public class</code>，如果您的代码中没有 <code>public class</code>，请将入口类命名为 <code>Main</code>。
-            <br> C# 与 Visual Basic 使用 Mono 平台的编译器与运行环境。
+            <br> C# 使用 Mono 平台的编译器与运行环境。
            <br>
        </p>
        <p>请根据题目中的说明选择使用<strong>标准输入输出</strong>或<strong>文件输入输出</strong>。</p>
@ -82,7 +82,7 @@
 <p>Special Judge 程序运行时，其目录下会有四个文件 <code>input</code>、<code>user_out</code>、<code>answer</code>、<code>code</code>，分别对应该测试点的输入文件、用户输出、该测试点的输出文件、用户的代码（对于非提交答案题目）。</p>
 <p>Special Judge 程序运行完成后，应将该测试点的得分输出到标准输出（<code>stdout</code>）中（范围为 <code>0</code> 到 <code>100</code>，将自动折合为测试点分数），并将提供给用户的额外信息输出到标准错误输出（<code>stderr</code>）中。</p>
 <h4>语言简称</h4>
-<p>配置数据时，描述 Special Judge 或交互器的语言时使用语言的简称，它们是 <code>c</code>、<code>cpp</code>、<code>cpp11</code>、<code>csharp</code>、<code>haskell</code>、<code>java</code>、<code>lua</code>、<code>luajit</code>、<code>nodejs</code>、<code>pascal</code>、<code>python2</code>、<code>python3</code>、<code>ruby</code>、<code>vala</code>、<code>vbnet</code>、<code>ocaml</code>。</p>
+<p>配置数据时，描述 Special Judge 或交互器的语言时使用语言的简称，它们是 <code>c</code>、<code>cpp</code>、<code>cpp11</code>、<code>cpp17</code>、<code>cpp11-clang</code>、<code>cpp17-clang</code>、<code>csharp</code>、<code>haskell</code>、<code>java</code>、<code>nodejs</code>、<code>pascal</code>、<code>python2</code>、<code>python3</code>、<code>ruby</code>。</p>
    </div>
 </div>
 <% include footer %>
--- a/views/problem.ejs
+++ b/views/problem.ejs
@ -310,15 +310,15 @@ div[class*=ace_br] {
                <div class="four wide column" style="margin-right: -25px; ">
                  <div class="ui attached vertical fluid pointing menu" id="languages-menu" style="height: 370px; overflow-y: scroll; overflow-x: hidden; ">
                    <%
-                    let language = Object.getOwnPropertyNames(syzoj.config.languages).shift();
+                    let language = syzoj.config.enabled_languages[0];
                    if (state) {
                      language = state.language;
                    } else if (lastLanguage) language = lastLanguage;
                    %>
-                    <% for (lang in syzoj.config.languages) { %>
-                      <a class="item<%= lang === language ? ' active' : '' %>" data-value="<%= lang %>" data-mode="<%= syzoj.config.languages[lang].editor %>">
-                        <%= syzoj.config.languages[lang].show %>
-                        <div class="ui right floated" style="opacity: 0.4; margin-top: 8px; font-size: 0.7em; "><%= syzoj.config.languages[lang].version %></div>
+                    <% for (lang of syzoj.config.enabled_languages) { %>
+                      <a class="item<%= lang === language ? ' active' : '' %>" data-value="<%= lang %>" data-mode="<%= syzoj.languages[lang].editor %>">
+                        <%= syzoj.languages[lang].show %>
+                        <div class="ui right floated" style="opacity: 0.4; margin-top: 8px; font-size: 0.7em; "><%= syzoj.languages[lang].version %></div>
                      </a>
                    <% } %>
                  </div>
--- a/views/statistics.ejs
+++ b/views/statistics.ejs
@ -83,7 +83,7 @@ function getColorOfScore(score) {
              <% if (problem.type !== 'submit-answer') { %>
                <td><%= judge.total_time %> ms</td>
                <td><%= parseInt(judge.max_memory) || 0 %> K</td>
-                <td><a href="<%= syzoj.utils.makeUrl(['submission', judge.id]) %>"><%= syzoj.config.languages[judge.language].show %></a> / <%= syzoj.utils.formatSize(judge.code.length) %></td>
+                <td><a href="<%= syzoj.utils.makeUrl(['submission', judge.id]) %>"><%= syzoj.languages[judge.language].show %></a> / <%= syzoj.utils.formatSize(judge.code.length) %></td>
              <% } else { %>
                <td><%= syzoj.utils.formatSize(judge.max_memory) %></td>
              <% } %>
--- a/views/status_label.ejs
+++ b/views/status_label.ejs
@ -20,7 +20,7 @@ const iconList = {
 };
 Vue.component('status-label', {
  template: '#statusIconTemplate',
-  props: ['status', 'indetail'],
+  props: ['status', 'indetail', 'progress'],
  computed: {
    icon() {
      if (this.status in iconList) {
@ -31,6 +31,10 @@ Vue.component('status-label', {
    },
    colorClass() {
      return (this.indetail ? 'status_detail ' : '') + this.status.toLowerCase().split(' ').join('_');
+    },
+    outputStatus() {
+      if (this.status === 'Running' && this.progress) return 'Running ' + this.progress.finished + '/' + this.progress.total;
+      else return this.status;
    }
  }
 })
@ -38,6 +42,6 @@ Vue.component('status-label', {
 <script type="text/x-template" id="statusIconTemplate">
  <span class="status" :class="colorClass">
    <i class="icon" :class="icon"></i>
-    {{ status }}
+    {{ outputStatus }}
  </span>
 </script>
--- a/views/submission.ejs
+++ b/views/submission.ejs
@ -47,7 +47,7 @@
      </tr>
    </thead>
    <tbody>
-      <tr is="submission-item" v-bind:data="roughData" :config="displayConfig" :show-rejudge="showRejudge"></tr>
+      <tr is="submission-item" v-bind:data="roughData" :config="displayConfig" :show-rejudge="showRejudge" :progress="getProgress()"></tr>
    </tbody>
  </table>

@ -64,7 +64,7 @@
            子任务 #{{ $index + 1 }}
          </div>
          <div class="four wide column">
-            <status-label :status="getSubtaskResult(subtask)" :indetail="true"></status-label>
+            <status-label :status="getSubtaskResult(subtask)" :indetail="true" :progress="getProgress($index)"></status-label>
          </div>
          <div class="three wide column" v-if="subtask.score != null">
            得分：<span style="font-weight: normal; ">{{ Math.trunc(subtask.score) }}</span>
@ -74,7 +74,7 @@
      <div class="content" :class="singleSubtask ? 'active' : ''">
        <div class="accordion">
          <template v-for="curCase, $caseIndex in subtask.cases">
-            <div class="title">
+            <div class="title" :class="checkTestcaseOK(curCase) ? '' : 'unexpandable'">
              <div class="ui grid">
                <div class="three wide column">
                    <i class="dropdown icon"></i>
@ -234,10 +234,38 @@ const vueApp = new Vue({
    },
    checkTestcaseOK(c) {
      return c.status === TaskStatus.Done;
+    },
+    getProgress(i) {
+      if (!this.detailResult || !this.detailResult.judge || !this.detailResult.judge.subtasks) return {
+        finished: 0,
+        total: 0
+      };
+
+      let isPending = status => [TaskStatus.Waiting, TaskStatus.Running].includes(status);
+      let subtaskProgress = [], allFinished = 0, allTotal = 0;
+      for (let i in this.detailResult.judge.subtasks) {
+        let subtaskFinished = 0, subtaskTotal = 0;
+        for (let j in this.detailResult.judge.subtasks[i].cases) {
+          subtaskTotal++, allTotal++;
+          if (!isPending(this.detailResult.judge.subtasks[i].cases[j].status)) subtaskFinished++, allFinished++;
+        }
+
+        subtaskProgress.push({
+          finished: subtaskFinished,
+          total: subtaskTotal
+        });
+      }
+
+      let allProgress = {
+        finished: allFinished,
+        total: allTotal
+      };
+
+      return typeof i === 'undefined' ? allProgress : subtaskProgress[i];
    }
  },
  mounted() {
-    $(document).ready(function(){ $('.ui.accordion').accordion()});
+    $(document).ready(function(){ $('.ui.accordion').accordion({ selector: { trigger: '.title:not(.unexpandable)' } })});
  },
  updated() {
    $('.ui.accordion').accordion("refresh");
--- a/views/submissions.ejs
+++ b/views/submissions.ejs
@ -36,10 +36,10 @@
          <i class="dropdown icon"></i>
          <div class="default text"></div>
          <div class="menu">
-            <div class="item" data-value="">不限</div>
-            <div class="item" data-value="submit-answer">提交答案</div>
-            <% for (let lang in syzoj.config.languages) { %>
-              <div class="item" data-value="<%= lang %>"><%= syzoj.config.languages[lang].show %></div>
+            <div class="item" data-value=""><b>不限</b></div>
+            <div class="item" data-value="submit-answer"><b>提交答案</b></div>
+            <% for (let lang of syzoj.config.filter_enabled_languages) { %>
+              <div style="font-size: 12.5px; " class="item" data-value="<%= lang %>"><b><%= syzoj.languages[lang].show %></b></div>
            <% } %>
          </div>
        </div>
@ -52,10 +52,10 @@
            <i class="dropdown icon"></i>
            <div class="default text"></div>
            <div class="menu">
-              <div class="item" data-value="">不限<i class="dropdown icon" style="visibility: hidden; "></i></div>
+              <div class="item" data-value=""><b>不限</b><i class="dropdown icon" style="visibility: hidden; "></i></div>
              <% for (let status in this.icon) { %>
                <% if (this.iconHidden.includes(status)) continue; %>
-                <div class="item" data-value="<%= status %>"><span class="status <%= status.toLowerCase().split(' ').join('_') %>"><i class="<%= this.icon[status] %> icon"></i> <%= status %></div>
+                <div class="item" data-value="<%= status %>"><span class="status <%= status.toLowerCase().split(' ').join('_') %>"><i class="<%= this.icon[status] %> icon"></i> <b><%= status %></b></div>
              <% } %>
            </div>
          </div>
@ -100,8 +100,23 @@
      </tr>
    </tbody>
  </table>
+  <% if (!items.length) { %>
+  <div style="background-color: #fff; height: 18px; margin-top: -18px; "></div>
+  <div class="ui placeholder segment" style="margin-top: -5px; ">
+    <div class="ui icon header">
+      <% if (isFiltered) { %>
+      <i class="ui search icon" style="margin-bottom: 20px; "></i>
+      找不到符合条件的提交
+      <% } else { %>
+      <i class="ui file icon" style="margin-bottom: 20px; "></i>
+      暂无提交
+      <% } %>
+    </div>
+  </div>
+  <% } else { %>
  <br>
  <% include page %>
+  <% } %>
 </div>

 <script src="https://cdnjs.loli.net/ajax/libs/vue/2.4.2/vue.min.js"></script>
--- a/views/submissions_item.ejs
+++ b/views/submissions_item.ejs
@ -14,7 +14,7 @@ const userUrl = <%- JSON.stringify(syzoj.utils.makeUrl(['user', 'VanDarkholme'])

 Vue.component('submission-item', {
  template: '#submissionItemTemplate',
-  props: ['data', 'config', 'showRejudge'],
+  props: ['data', 'config', 'showRejudge', 'progress'],
  computed: {
    statusString() {
      const data = this.data;
@ -57,9 +57,9 @@ Vue.component('submission-item', {
  <% } %>
  <td ref="problemLabel"><a ref="problemLabelTextFit" style="width: 230px; height: 22px; display: block; margin: 0 auto; line-height: 22px;" :href="problemLink"><b>#{{ config.inContest ? alpha(data.info.problemId) : data.info.problemId }}.</b> {{ data.info.problemName }}</a></td>
  <% if (active === 'submissions') { %>
-  <td><a :href="submissionLink"><b><status-label :status="statusString"></status-label></b></a></td>
+  <td><a :href="submissionLink"><b><status-label :status="statusString" :progress="progress"></status-label></b></a></td>
  <% } else { %>
-  <td><b><status-label :status="statusString"></status-label></b></td>
+  <td><b><status-label :status="statusString" :progress="progress"></status-label></b></td>
  <% } %>

  <template v-if="data.result">
@ -69,7 +69,13 @@ Vue.component('submission-item', {
  <td v-if="config.showScore"><span class="score" :class="scoreClass">{{ Math.floor(data.result.score || 0) }}</span></td>
  <% } %>
  <td v-if="config.showUsage">{{ (data.result.time || 0).toString() + ' ms' }}</td>
-  <td v-if="config.showUsage">{{ (data.result.memory || 0).toString() + ' KiB' }}</td>
+
+  <% if (active === 'submissions') { %>
+  <td v-if="config.showUsage">{{ data.result.memory }}</td>
+  <% } else { %>
+  <td v-if="config.showUsage">{{ (data.result.precise_memory || 0).toString() + ' K'}}</td>
+  <% } %>
+
  </template> <template v-else>
  <td v-if="config.showScore"/> <td v-if="config.showUsage"/> <td v-if="config.showUsage"/>
  </template>
--- a/views/util.ejs
+++ b/views/util.ejs
@ -15,7 +15,7 @@ this.createSortableTitle = function(item, display, defaultOrder) {
      order: getOrderString(isCurrent ? (!curOrder) : defaultOrder)
    }));
  const triangle = isCurrent ? `<i class="${curOrder ? "angle up" : "angle down"} icon"></i>` : "";
-  return `<a href="${url}">${display}${triangle}</a>`;
+  return `<a class="black-link" href="${url}">${display}${triangle}</a>`;
 }

 this.isPending = (status) => {