139 lines
5.3 KiB
JavaScript
139 lines
5.3 KiB
JavaScript
const MODULE_PRIORITY = [
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"prototype-builder",
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"descriptor-guard",
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"native-protector",
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"navigator-module",
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"document-module",
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"document-all-module",
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"storage-module",
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"fingerprint-module",
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"performance-module",
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"crypto-module",
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"audio-fingerprint-module",
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"webrtc-module",
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"worker-module",
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"stack-clean-module",
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];
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function toArray(value) {
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if (Array.isArray(value)) return value;
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if (value && Array.isArray(value.logs)) return value.logs;
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return [];
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}
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function unique(values) {
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return Array.from(new Set(values));
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}
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function extractPathList(input, key, type) {
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if (Array.isArray(input[key])) return unique(input[key]);
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return unique(
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toArray(input)
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.filter((item) => item && item.type === type && typeof item.path === "string")
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.map((item) => item.path)
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);
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}
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function inferModulesFromPath(path) {
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const modules = [];
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const value = String(path || "");
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if (/__proto__|prototype|constructor/.test(value)) modules.push("prototype-builder");
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if (/getOwnPropertyDescriptor|defineProperty|descriptor|ownKeys/.test(value)) modules.push("descriptor-guard");
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if (/toString|name|length|caller|arguments/.test(value)) modules.push("native-protector");
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if (/navigator|plugins|mimeTypes|webdriver|getBattery|userAgentData/.test(value)) {
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modules.push("navigator-module");
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if (/getBattery/.test(value)) modules.push("fingerprint-module");
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}
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if (/document\.all/.test(value)) {
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modules.push("document-all-module");
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modules.push("document-module");
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} else if (/document|createElement|querySelector|cookie/.test(value)) {
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modules.push("document-module");
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}
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if (/localStorage|sessionStorage|indexedDB|cookieStore/.test(value)) modules.push("storage-module");
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if (/canvas|webgl|screen|devicePixelRatio|getContext|toDataURL/.test(value)) modules.push("fingerprint-module");
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if (/performance|Performance/.test(value)) modules.push("performance-module");
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if (/crypto|msCrypto|getRandomValues|subtle/.test(value)) modules.push("crypto-module");
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if (/AudioContext|OfflineAudioContext|Oscillator|Analyser/.test(value)) modules.push("audio-fingerprint-module");
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if (/RTCPeerConnection|RTCDataChannel|RTCIceCandidate|RTCSessionDescription/.test(value)) modules.push("webrtc-module");
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if (/Worker|SharedWorker|MessagePort|BroadcastChannel/.test(value)) modules.push("worker-module");
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if (/Error|stack|prepareStackTrace/.test(value)) modules.push("stack-clean-module");
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return unique(modules);
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}
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function scoreEvidence(entry) {
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if (!entry || !entry.type) return 0;
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if (entry.type === "invoke-error") return 5;
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if (entry.type === "missing") return 4;
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if (entry.type === "descriptor" || entry.type === "prototype") return 3;
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return 1;
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}
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function analyzeGapLog(input = {}) {
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const logs = toArray(input);
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const missingPaths = extractPathList(input, "missingPaths", "missing");
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const descriptorAccess = extractPathList(input, "descriptorAccess", "descriptor");
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const prototypeAccess = extractPathList(input, "prototypeAccess", "prototype");
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const invocationErrors = extractPathList(input, "invocationErrors", "invoke-error");
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const groupedByModule = Object.create(null);
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for (const entry of logs) {
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const modules = inferModulesFromPath(entry.path);
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if (!modules.length) continue;
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for (const moduleName of modules) {
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if (!groupedByModule[moduleName]) {
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groupedByModule[moduleName] = { score: 0, evidence: [] };
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}
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groupedByModule[moduleName].score += scoreEvidence(entry);
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groupedByModule[moduleName].evidence.push(entry);
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}
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}
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const recommendedModules = Object.keys(groupedByModule).sort((left, right) => {
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const leftPriority = MODULE_PRIORITY.indexOf(left);
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const rightPriority = MODULE_PRIORITY.indexOf(right);
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const leftScore = groupedByModule[left].score;
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const rightScore = groupedByModule[right].score;
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if (rightScore !== leftScore) return rightScore - leftScore;
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return leftPriority - rightPriority;
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});
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const nextActions = [];
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if (recommendedModules.includes("prototype-builder")) {
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nextActions.push("先修复构造器、原型链和 instanceof 关系，再处理对象值。");
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}
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if (recommendedModules.includes("descriptor-guard")) {
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nextActions.push("把 getOwnPropertyDescriptor/defineProperty/propertyIsEnumerable 的结果对齐。");
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}
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if (recommendedModules.includes("native-protector")) {
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nextActions.push("统一接管 Function.prototype.toString，并补齐 getter/setter/name/length 保护。");
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}
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if (recommendedModules.includes("document-all-module")) {
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nextActions.push("单独评估 document.all，明确是 native-addon、V8 API 还是 fallback 路线。");
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}
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if (recommendedModules.includes("storage-module")) {
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nextActions.push("把 cookie/localStorage/sessionStorage 的真实状态同步进运行时。");
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}
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if (recommendedModules.includes("fingerprint-module")) {
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nextActions.push("把 canvas/webgl/screen/battery 等指纹点单独建模，不要和普通 navigator 属性混补。");
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}
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return {
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totalLogs: logs.length,
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missingPaths,
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descriptorAccess,
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prototypeAccess,
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invocationErrors,
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recommendedModules,
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groupedByModule,
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nextActions: unique(nextActions),
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};
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}
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module.exports = {
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analyzeGapLog,
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inferModulesFromPath,
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};
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