华师砺儒云课堂与教务系统增强脚本
// ==UserScript==
// @name SCNU Helper
// @namespace scnu_helper
// @version 0.4.0
// @author Ravi
// @description 华师砺儒云课堂与教务系统增强脚本
// @license AGPL-3.0-only
// @match https://moodle.scnu.edu.cn/*
// @match https://jwxt.scnu.edu.cn/*
// @connect api.siliconflow.cn
// @grant GM_xmlhttpRequest
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
var _GM_xmlhttpRequest = (() => typeof GM_xmlhttpRequest != "undefined" ? GM_xmlhttpRequest : void 0)();
function video_zoom() {
console.log("[Interceptor] 视频页面，准备拦截 tcplayer-video.js 脚本");
let tcplayerProcessed = false;
let tcplayerReady = false;
const pendingMainScripts = [];
const maxWaitMs = 7e3;
function isMainScriptTag(tag) {
try {
if (!(tag instanceof HTMLScriptElement)) return false;
const src = tag.getAttribute("src") || "";
if (!src) return false;
return /(^|\/)main(\.|$|-)/.test(src);
} catch (_) {
return false;
}
}
function flushPendingMain(reason = "tcplayer 就绪") {
if (!pendingMainScripts.length) return;
console.log(`[Interceptor] 释放被拦截的 main.js（${pendingMainScripts.length} 个），原因：${reason}`);
const target = document.head || document.documentElement || document.body;
while (pendingMainScripts.length) {
const node = pendingMainScripts.shift();
try {
target.appendChild(node);
} catch (e) {
console.warn("[Interceptor] 重新注入 main.js 失败：", e);
}
}
}
function interceptMainScriptsOnce() {
const candidates = Array.from(document.querySelectorAll("script[src]")).filter(isMainScriptTag);
for (const s of candidates) {
if (tcplayerReady) {
continue;
}
try {
console.log("[Interceptor] 拦截到依赖 tcplayer 的 main.js：", s.src);
s.remove();
pendingMainScripts.push(s);
} catch (e) {
console.warn("[Interceptor] 移除 main.js 失败：", e);
}
}
}
function processTcplayerIfPresent() {
const playerScriptTag = document.querySelector('script[src*="tcplayer-video.js"]');
if (playerScriptTag && !tcplayerProcessed) {
const originalSrc = playerScriptTag.src;
console.log("[Interceptor] 拦截到 tcplayer-video.js:", originalSrc);
playerScriptTag.remove();
tcplayerProcessed = true;
_GM_xmlhttpRequest({
method: "GET",
url: originalSrc,
onload: function(response) {
if (response.status === 200) {
let modifiedCode = response.responseText;
modifiedCode = modifiedCode.replace(
"var time = Math.round(this.viewTotalTime / 1000)",
"this.viewTotalTime = 99999;\nvar time = Math.round(this.viewTotalTime / 1000)"
);
console.log("[Interceptor] 已修改 tcplayer-video.js 内容，准备注入");
const newScript = document.createElement("script");
newScript.textContent = modifiedCode;
newScript.type = "text/javascript";
(document.head || document.documentElement).appendChild(newScript);
console.log("[Interceptor] 修改后的 tcplayer-video.js 已注入");
tcplayerReady = true;
flushPendingMain("tcplayer 注入完成");
} else {
console.error("[Interceptor] 请求 tcplayer-video.js 失败:", response.status);
flushPendingMain("请求 tcplayer 失败");
}
},
onerror: function(error) {
console.error("[Interceptor] 请求 tcplayer-video.js 出错:", error);
flushPendingMain("请求 tcplayer 出错");
}
});
}
}
const observer = new MutationObserver(() => {
interceptMainScriptsOnce();
processTcplayerIfPresent();
});
observer.observe(document.documentElement, { childList: true, subtree: true });
interceptMainScriptsOnce();
processTcplayerIfPresent();
setTimeout(() => {
if (!tcplayerReady && pendingMainScripts.length) {
console.warn("[Interceptor] 等待 tcplayer 超时，释放 main.js 以避免页面卡死");
flushPendingMain("等待超时");
}
}, maxWaitMs);
}
function ai_answer() {
console.log("[AI Answer] 作答页面，准备运行 AI 作答脚本");
const apiKey = getApiKey();
if (!apiKey) {
console.error("[AI Answer] 未提供 API Key，已取消");
return;
}
const questions = extractQuestionsWithOptions();
if (!questions.length) {
console.error("[AI Answer] 未能从页面提取题目与选项");
return;
}
console.log(`[AI Answer] 共提取到 ${questions.length} 道题`);
let chain = Promise.resolve();
questions.forEach((q, idx) => {
chain = chain.then(() => {
console.log(`
[AI Answer] 第 ${idx + 1} 题：
${q}`);
return callSiliconFlowOnce(apiKey, q).then((answer) => {
const letter = (answer || "").trim().toUpperCase().replace(/[^A-Z]/g, "").charAt(0);
let div = document.createElement("div");
if (!letter) {
console.warn(`[AI Answer] 第 ${idx + 1} 题：未解析到有效选项字母，原始返回：`, answer);
div.innerText = String(answer ?? "");
} else {
console.log(`[AI Answer] 第 ${idx + 1} 题模型答案：${letter}`);
div.innerText = letter;
}
document.querySelectorAll('[class^="info"]')[idx]?.appendChild(div);
}).catch((err) => {
console.error(`[AI Answer] 第 ${idx + 1} 题请求失败：`, err);
});
});
});
}
function getApiKey() {
try {
const keyInStore = localStorage.getItem("sf_api_key");
if (keyInStore && keyInStore.trim()) return keyInStore.trim();
} catch (_) {
}
const input = window.prompt("请输入 SiliconFlow API Key（仅提示一次，将保存在本地浏览器）：");
const key = (input || "").trim();
if (key) {
try {
localStorage.setItem("sf_api_key", key);
} catch (_) {
}
return key;
}
return "";
}
function extractQuestionsWithOptions() {
const nodes = Array.from(document.querySelectorAll('[class^="formulation clearfix"]'));
const results = [];
for (const el of nodes) {
results.push(el.innerText);
}
return results;
}
function callSiliconFlowOnce(apiKey, question) {
const url = "https://api.siliconflow.cn/v1/chat/completions";
const headers = {
Authorization: `Bearer ${apiKey}`,
"Content-Type": "application/json"
};
const data = {
model: "THUDM/GLM-4-9B-0414",
messages: [
{
role: "system",
content: "能力与角色:你是一位答题助手。\n背景信息:你会得到一个题目和多个选项。\n指令:你要仔细思考问题，并从下面的几个选项中选择你认为正确的那个。\n输出风格:你无需给出推理过程以及任何解释。你只需要回答正确选项对应的字母，不得回答任何多余的文字，不得添加任何的标点符号。\n输出范围:我希望你仅仅回答一个字母。"
},
{ role: "user", content: question }
],
enable_thinking: false,
temperature: 0.2
};
return new Promise((resolve, reject) => {
_GM_xmlhttpRequest({
method: "POST",
url,
headers,
data: JSON.stringify(data),
timeout: 2e4,
onload: (resp) => {
try {
if (resp.status >= 200 && resp.status < 300) {
const json = JSON.parse(resp.responseText || "{}");
const content = json?.choices?.[0]?.message?.content;
if (typeof content === "string" && content.trim()) {
resolve(content);
} else {
reject(new Error("响应不包含有效内容"));
}
} else {
reject(new Error(`HTTP ${resp.status}`));
}
} catch (e) {
reject(e);
}
},
onerror: (err) => reject(err)
});
});
}
function remove_timeinterval() {
console.log("[Interceptor] 教务系统页面，准备移除倒计时限制");
new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
mutation.addedNodes.forEach((node) => {
if (node.tagName === "SCRIPT" && !node.src) {
node.textContent = node.textContent.replace(
"var count = (''==null||''=='')?((''==null||''=='')?5:''):'';",
"var count = 0;"
);
console.log("[Interceptor] 修改后的代码已注入");
}
});
});
}).observe(document.documentElement, { childList: true, subtree: true });
}
const domain = window.location.hostname;
const path = window.location.pathname;
if (domain === "moodle.scnu.edu.cn") {
if (path.includes("fsresource")) {
video_zoom();
} else if (path.includes("quiz/attempt.php")) {
ai_answer();
}
} else if (domain === "jwxt.scnu.edu.cn") {
if (path.includes("index_initMenu")) {
remove_timeinterval();
}
}
})();