回放,h5失效

This commit is contained in:
test
2025-09-09 09:59:17 +08:00
parent 5b7c1dd7bd
commit 8c7979c58f
14 changed files with 10088 additions and 479 deletions

191
utils/ddCalcuURL.js Normal file
View File

@@ -0,0 +1,191 @@
const list = {
// h5端修改频繁现已失效
"h5": {
// 第11位字符
"keys": "yzwxcdabgh",
// 第5 8 14位字母对应下标0 1 3的字符
"words": ['z', 'y', '0', 'w'],
// 第11位字符替换位置,从0开始
"thirdReplaceIndex": 1,
// 加密后链接后缀
"suffix": "&sv=10000&ct=www"
},
"android": {
"keys": "cdabyzwxkl",
"words": ['x', 'a', '0', 'a'],
"thirdReplaceIndex": 6,
"suffix": "&sv=10004&ct=android"
}
}
const importObj = {
a: {
a: (a, b, c) => { },
b: (a) => { return 0 },
c: () => { },
d: (a, b, c, d) => { return 0 },
e: (a) => { return 0 },
f: (a, b, c, d, e) => { return 0 },
g: (a, b) => { return 0 },
h: (a, b) => { return 0 },
i: (a) => { return 0 },
j: (a, b, c, d, e) => { return 0 }
}
}
/**
* 加密url
* @param {string} videoURL - 视频url
* @param {Uint8Array} memoryView - 内存
* @param {Function} getEncrypt - 加密方法
* @returns {string} - 加密地址
*/
function encrypt(videoURL, memoryView, getEncrypt) {
// 将地址写入内存
let i;
for (i = 0; i < videoURL.length; ++i) {
memoryView[i] = videoURL.charCodeAt(i)
}
memoryView[i] = 0
// 加密内存中的url
let start = getEncrypt(0)
// 从内存中读取加密后的url
let encryptedURL = ""
for (let i = start; memoryView[i] != 0; ++i) {
encryptedURL += String.fromCharCode(memoryView[i])
}
return encryptedURL
}
/**
* 初始化wasm
* @param {string} masmURL - wasm地址
* @returns {object} - wasm导出的内容
*/
async function initWasm(masmURL) {
// 获取wasm文件
let resp = await fetch(masmURL);
// 初始化
let { instance } = await WebAssembly.instantiateStreaming(resp, importObj)
return instance.exports;
}
/**
* 获取加密url
* @param {object} exports - wasm导出的内容
* @param {string} videoURL - 视频地址
* @returns {string} - 播放地址
*/
function getEncryptURL(exports, videoURL) {
// 获得内存
const memory = exports.k
const memoryView = new Uint8Array(memory.buffer)
// 获取加密方法
const getEncrypt = exports.m
return encrypt(videoURL, memoryView, getEncrypt)
}
/**
* h5端现已失效
* 获取ddCalcu
* 大致思路:把puData最后一个字符和第一个字符拼接然后拼接倒数第二个跟第二个一直循环当第1 2 3 4次(从0开始)循环时需要插入特殊标识字符
* 特殊字符:四个特殊字符位置是第5 8 11 14第5 8 14是根据平台确定的且各个节目都一样。第11位在h5上是根据节目ID第1位(从0开始,android是第6位)数字为下标的某字符串的值
* 在android标清画质还有区分第5位字符需要修改其他不变
* @param {string} puData - 服务器返回的那个东东
* @param {string} programId - 节目ID
* @param {string} clientType - 平台类型 h5 android
* @param {string} rateType - 清晰度 2:标清 3:高清 4:蓝光
* @returns {string} - ddCalcu
*/
function getddCalcu(puData, programId, clientType, rateType) {
if (puData == null || puData == undefined) {
return ""
}
if (programId == null || programId == undefined) {
return ""
}
if (clientType != "android" && clientType != "h5") {
return ""
}
if (rateType == null || rateType == undefined) {
return ""
}
let keys = list[clientType].keys
let words = list[clientType].words
const thirdReplaceIndex = list[clientType].thirdReplaceIndex
// android平台标清
if (clientType == "android" && rateType == "2") {
words[0] = "v"
}
puData = puData.split("");
keys = keys.split("")
const puDataLength = puData.length
programId = programId.split("")
let ddCalcu = []
for (let i = 0; i < puDataLength / 2; i++) {
ddCalcu.push(puData[puDataLength - i - 1])
ddCalcu.push(puData[i])
switch (i) {
case 1:
ddCalcu.push(words[i - 1])
break;
case 2:
ddCalcu.push(words[i - 1])
break;
case 3:
ddCalcu.push(keys[programId[thirdReplaceIndex]])
break;
case 4:
ddCalcu.push(words[i - 1])
break;
}
}
return ddCalcu.join("")
}
/**
* 加密链接
* @param {string} puDataURL - 加密前链接
* @param {string} programId - 节目ID
* @param {string} clientType - 客户端类型 h5 android
* @param {string} rateType - 清晰度 2:标清 3:高清 4:蓝光
* @returns {string} - 加密链接
*/
function getddCalcuURL(puDataURL, programId, clientType, rateType) {
if (puDataURL == null || puDataURL == undefined) {
return ""
}
if (programId == null || programId == undefined) {
return ""
}
if (clientType != "android" && clientType != "h5") {
return ""
}
if (rateType == null || rateType == undefined) {
return ""
}
const puData = puDataURL.split("&puData=")[1]
const ddCalcu = getddCalcu(puData, programId, clientType, rateType)
const suffix = list[clientType].suffix
return `${puDataURL}&ddCalcu=${ddCalcu}${suffix}`
}
export { initWasm, getEncryptURL, getddCalcuURL }