WebAssembly in Action

WebAssembly in Action

数据加密，反爬虫，防盗链，版权保护，数据追踪，埋点

1. blogs 加密，js 禁用检测，权限控制

WebAssembly 防盗链

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wasm online ide

https://wasdk.github.io/WasmFiddle/

WebAssembly module

int main() {
  return 36;
}

text

program.wat

(module
 (table 0 anyfunc)
 (memory $0 1)
 (export "memory" (memory $0))
 (export "main" (func $main))
 (func $main (; 0 ;) (result i32)
  (i32.const 36)
 )
)

binary

program.wasm

(module
  (type $t0 (func (result i32)))
  (func $main (type $t0) (result i32)
    i32.const 36)
  (table $T0 0 funcref)
  (memory $memory 1)
  (export "memory" (memory 0))
  (export "main" (func $main)))

js

var wasmModule = new WebAssembly.Module(wasmCode);

var wasmInstance = new WebAssembly.Instance(wasmModule, wasmImports);

log(wasmInstance.exports.main() + 1);

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