KakaoTalk+: No More Search Pane (macOS)

KakaoTalk+.js

/*
  Hide the annoying search pane.
  $ sudo node KakaoTalk+.js
  $ nohup /Applications/KakaoTalk.app/Contents/MacOS/KakaoTalk+ </dev/null >/dev/null 2>&1
*/

const { readFileSync, writeFileSync } = require('fs'),
      { execSync } = require('child_process'),
      { ok } = require('assert');

const target = 'showSearchPane',
      input  = `/Applications/KakaoTalk.app/Contents/MacOS/KakaoTalk`,
      output = `/Applications/KakaoTalk.app/Contents/MacOS/KakaoTalk+`;

const dump     = execSync(`objdump -macho -objc-meta-data ${input}`).toString() || '',
      [, addr] = dump.match(new RegExp(`${target}\\n.+?imp\\s+(0x[0-9a-f]+)`, 'su')) || [, NaN];
ok(!isNaN(addr), `Failed to find the method ${target}`);

console.log(`Found ${target} at ${addr}`);
const binary = readFileSync(input);
binary[addr - 0x100000000] = 0xC3; // ret

for (let i=1; i<16; i++) {
  binary[addr - 0x100000000 + i] = 0x90; // nop
}

writeFileSync(output, binary, { mode : 0o755 });
console.log(`Saved ${output}`);