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Give a name to a magic number and document it

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This commit is contained in:
Maybe Waffle 2022-04-03 14:47:10 +04:00
parent daec5ee13e
commit 05603560e6
1 changed files with 16 additions and 5 deletions
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21
src/errors.rs
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@ -758,11 +758,22 @@ pub(crate) fn hide_token(mut error: reqwest::Error) -> reqwest::Error {
if let Some(token) = segment.and_then(|s| s.strip_prefix("bot")) { if let Some(token) = segment.and_then(|s| s.strip_prefix("bot")) {
// make sure that what we are about to delete looks like a bot token // make sure that what we are about to delete looks like a bot token
if let Some((id, secret)) = token.split_once(':') { if let Some((id, secret)) = token.split_once(':') {
if secret.len() >= 35 // The part before the : in the token is the id of the bot.
&& secret let id_character = |c: char| c.is_ascii_digit();
.chars()
.all(|c| c.is_ascii_alphanumeric() || c == '-' || c == '_') // The part after the : in the token is the secret.
&& id.chars().all(|c| c.is_ascii_digit()) //
// In all bot tokens we could find the secret is 35 characters long and is
// 0-9a-zA-Z_- only.
//
// It would be nice to research if TBA always has 35 character secrets or if it
// is just a coincidence.
const SECRET_LENGTH: usize = 35;
let secret_character = |c: char| c.is_ascii_alphanumeric() || c == '-' || c == '_';
if secret.len() >= SECRET_LENGTH
&& id.chars().all(id_character)
&& secret.chars().all(secret_character)
{ {
// found token, hide only the token // found token, hide only the token
let without_token = let without_token =