Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 | 9x 9x 16580x 16580x 16580x 16580x 16580x 20x 16580x 16580x 16507x 16504x 3x 16580x 33160x 16580x 16580x 16577x 8x 16572x 16568x 16568x 16568x 16568x 204x 204x 201x 3x 16568x 16568x 23x 23x 22x 22x 1x 16568x 181x 181x 6x 16568x 16568x 12x | /**
* Trusted Script Event Handler Loader
*
* Executes handler code using native eval for trusted contexts.
*/
import type {
FileReaderFn,
ScriptEventHandler,
ScriptEventHandlerWithCleanup,
} from "lib/scriptEventsHandlers/handlerTypes";
import {
detectModuleSystem,
createMockRequire,
validateHandlerMetadata,
createHandlerBase,
finalizeHandler,
noReadFileFn,
convertESMToCommonJS,
} from "./handlerCommon";
/**
* Loads script event handlers using native eval for trusted code execution.
*/
export const loadScriptEventHandlerFromTrustedString = async (
code: string,
filename: string,
readFile: FileReaderFn = noReadFileFn,
): Promise<ScriptEventHandlerWithCleanup> => {
try {
// Execute handler code with ES module conversion
let metadata: unknown;
try {
const moduleSystem = detectModuleSystem(code);
let processedCode = code;
if (moduleSystem === "module") {
processedCode = convertESMToCommonJS(code);
}
// Create controlled sandbox with mock modules
const mockRequire = createMockRequire(readFile);
const sandbox = {
module: { exports: {} },
require: (moduleName: string): unknown => {
if (mockRequire[moduleName]) {
return mockRequire[moduleName];
}
throw new Error(`Module '${moduleName}' not found in mock modules`);
},
};
// Prepare sandbox variable declarations
const contextSetup = Object.keys(sandbox)
.map((key) => `var ${key} = arguments[0].${key};`)
.join("\n");
const wrappedCode = `
${contextSetup}
${processedCode}
return module.exports;
`;
// Execute code with eval (must be trusted)
// eslint-disable-next-line no-new-func
const vmFunction = new Function(wrappedCode);
metadata = vmFunction.call(null, sandbox);
} catch (error) {
throw error;
}
// Validate required handler metadata
validateHandlerMetadata(metadata, filename);
// Store module exports for function calling
const moduleExports = metadata as Record<string, unknown>;
const hasAutoLabelFunction = typeof moduleExports.autoLabel === "function";
// No-op cleanup for eval-based execution
const cleanup = () => {};
// Direct function calls without VM overhead
const callModuleFunction = (
functionName: string,
args: unknown[],
): unknown => {
const targetFunction = moduleExports[functionName];
if (typeof targetFunction === "function") {
return (targetFunction as (...args: unknown[]) => unknown).apply(
moduleExports,
args,
);
}
throw new Error(`Function '${functionName}' not found in module exports`);
};
// Create base handler using shared utilities
const handler = createHandlerBase(
metadata as Record<string, unknown>,
hasAutoLabelFunction,
cleanup,
) as ScriptEventHandler & { cleanup: () => void };
// Add execution-specific methods
handler.autoLabel = hasAutoLabelFunction
? (lookup: (key: string) => string, input: Record<string, unknown>) => {
try {
const result = callModuleFunction("autoLabel", [lookup, input]);
if (typeof result === "string") {
return result;
}
return undefined;
} catch (error) {
throw error;
}
}
: undefined;
handler.compile = (input: unknown, helpers: unknown) => {
try {
callModuleFunction("compile", [input, helpers]);
} catch (error) {
throw error;
}
};
// Finalize handler with lookup tables and validation
finalizeHandler(handler);
return handler;
} catch (error) {
throw error;
}
};
|