| 13 | |
| 14 | // 构建沙盒上下文 |
| 15 | export const createContext = ( |
| 16 | scriptRes: TScriptInfo, |
| 17 | GMInfo: any, |
| 18 | envPrefix: string, |
| 19 | message: Message, |
| 20 | contentMsg: Message, |
| 21 | scriptGrants: Set<string> |
| 22 | ) => { |
| 23 | // 按照GMApi构建 |
| 24 | const valueChangeListener = new ListenerManager<GMTypes.ValueChangeListener>(); |
| 25 | const EE = new EventEmitter<string, any>(); |
| 26 | // 如果是preDocumentStart脚本，装载loadScriptPromise |
| 27 | let loadScriptPromise: Promise<void> | undefined; |
| 28 | let loadScriptResolve: (() => void) | undefined; |
| 29 | if (isEarlyStartScript(scriptRes.metadata)) { |
| 30 | loadScriptPromise = new Promise((resolve) => { |
| 31 | loadScriptResolve = resolve; |
| 32 | }); |
| 33 | } |
| 34 | let invalid = false; |
| 35 | const GM = Object.create(null); |
| 36 | GM.info = GMInfo; |
| 37 | const context = createGMBase({ |
| 38 | prefix: envPrefix, |
| 39 | message, |
| 40 | contentMsg, |
| 41 | scriptRes, |
| 42 | valueChangeListener, |
| 43 | EE, |
| 44 | runFlag: uuidv4(), |
| 45 | eventId: 10000, |
| 46 | GM: GM, |
| 47 | GM_info: GMInfo, |
| 48 | window: Object.create(null), |
| 49 | grantSet: new Set(), |
| 50 | loadScriptPromise, |
| 51 | loadScriptResolve, |
| 52 | setInvalidContext() { |
| 53 | if (invalid) return; |
| 54 | invalid = true; |
| 55 | this.valueChangeListener.clear(); |
| 56 | this.EE.removeAllListeners(); |
| 57 | this.runFlag = `${uuidv4()}(invalid)`; // 更改 uuid 防止 runFlag 相关操作 |
| 58 | // 释放记忆 |
| 59 | this.message = null; |
| 60 | this.scriptRes = null; |
| 61 | this.valueChangeListener = null; |
| 62 | this.EE = null; |
| 63 | }, |
| 64 | isInvalidContext() { |
| 65 | return invalid; |
| 66 | }, |
| 67 | }); |
| 68 | const grantedAPIs: { [key: string]: any } = Object.create(null); |
| 69 | const __methodInject__ = (grant: string): boolean => { |
| 70 | const grantSet: Set<string> = context.grantSet; |
| 71 | const s = GMContextApiGet(grant); |
| 72 | if (!s) return false; // @grant 的定义未实现，略过 (返回 false 表示 @grant 不存在) |