ppfun/pixelplanet
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make captcha case inensitive and l = i and 0 = 0

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This commit is contained in:
HF 2021-03-18 00:03:19 +01:00
parent 55a7ce6d49
commit ebebf45d7b
1 changed files with 11 additions and 3 deletions
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14
src/utils/captcha.js
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@ -14,6 +14,14 @@ import {
const TTL_CACHE = CAPTCHA_TIME * 60; // seconds const TTL_CACHE = CAPTCHA_TIME * 60; // seconds
function captchaTextFilter(text: string) {
let ret = text.toString('utf8');
ret = ret.split('l').join('i');
ret = ret.split('0').join('O');
ret = ret.toLowerCase();
return ret;
}
/* /*
* set captcha solution * set captcha solution
* *
@ -26,7 +34,7 @@ export function setCaptchaSolution(
ip: string, ip: string,
) { ) {
const key = `capt:${ip}`; const key = `capt:${ip}`;
return redis.setAsync(key, text, 'EX', CAPTCHA_TIMEOUT); return redis.setAsync(key, captchaTextFilter(text), 'EX', CAPTCHA_TIMEOUT);
} }
/* /*
@ -44,9 +52,9 @@ export async function checkCaptchaSolution(
) { ) {
const ipn = getIPv6Subnet(ip); const ipn = getIPv6Subnet(ip);
const key = `capt:${ip}`; const key = `capt:${ip}`;
const solution = await redis.getAsync(key); let solution = await redis.getAsync(key);
if (solution) { if (solution) {
if (solution.toString('utf8') === text) { if (solution.toString('utf8') === captchaTextFilter(text)) {
const solvkey = `human:${ipn}`; const solvkey = `human:${ipn}`;
await redis.setAsync(solvkey, '', 'EX', TTL_CACHE); await redis.setAsync(solvkey, '', 'EX', TTL_CACHE);
logger.info(`CAPTCHA ${ip} successfully solved captcha`); logger.info(`CAPTCHA ${ip} successfully solved captcha`);