reminder-bot/web/src/macros.rs

150 lines
4.6 KiB
Rust

macro_rules! offline {
($field:expr) => {
if std::env::var("OFFLINE").map_or(false, |v| v == "1") {
return $field;
}
};
}
macro_rules! check_length {
($max:ident, $field:expr) => {
if $field.len() > $max {
return Err(json!({ "error": format!("{} exceeded", stringify!($max)) }));
}
};
($max:ident, $field:expr, $($fields:expr),+) => {
check_length!($max, $field);
check_length!($max, $($fields),+);
};
}
macro_rules! check_length_opt {
($max:ident, $field:expr) => {
if let Some(field) = &$field {
check_length!($max, field);
}
};
($max:ident, $field:expr, $($fields:expr),+) => {
check_length_opt!($max, $field);
check_length_opt!($max, $($fields),+);
};
}
macro_rules! check_url {
($field:expr) => {
if !($field.starts_with("http://") || $field.starts_with("https://")) {
return Err(json!({ "error": "URL invalid" }));
}
};
($field:expr, $($fields:expr),+) => {
check_url!($max, $field);
check_url!($max, $($fields),+);
};
}
macro_rules! check_url_opt {
($field:expr) => {
if let Some(field) = &$field {
check_url!(field);
}
};
($field:expr, $($fields:expr),+) => {
check_url_opt!($field);
check_url_opt!($($fields),+);
};
}
macro_rules! check_authorization {
($cookies:expr, $ctx:expr, $guild:expr) => {
use serenity::model::id::UserId;
let user_id = $cookies.get_private("userid").map(|c| c.value().parse::<u64>().ok()).flatten();
if std::env::var("OFFLINE").map_or(true, |v| v != "1") {
match user_id {
Some(user_id) => {
match GuildId($guild).to_guild_cached($ctx) {
Some(guild) => {
let member_res = guild.member($ctx, UserId(user_id)).await;
match member_res {
Err(_) => {
return Err(json!({"error": "User not in guild"}));
}
Ok(member) => {
let permissions_res = member.permissions($ctx);
match permissions_res {
Err(_) => {
return Err(json!({"error": "Couldn't fetch permissions"}));
}
Ok(permissions) => {
if !(permissions.manage_messages() || permissions.manage_guild() || permissions.administrator()) {
return Err(json!({"error": "Incorrect permissions"}));
}
}
}
}
}
}
None => {
return Err(json!({"error": "Bot not in guild"}));
}
}
}
None => {
return Err(json!({"error": "User not authorized"}));
}
}
}
}
}
macro_rules! update_field {
($pool:expr, $error:ident, $reminder:ident.[$field:ident]) => {
if let Some(value) = &$reminder.$field {
match sqlx::query(concat!(
"UPDATE reminders SET `",
stringify!($field),
"` = ? WHERE uid = ?"
))
.bind(value)
.bind(&$reminder.uid)
.execute($pool)
.await
{
Ok(_) => {}
Err(e) => {
warn!(
concat!(
"Error in `update_field!(",
stringify!($pool),
stringify!($reminder),
stringify!($field),
")': {:?}"
),
e
);
$error.push(format!("Error setting field {}", stringify!($field)));
}
}
}
};
($pool:expr, $error:ident, $reminder:ident.[$field:ident, $($fields:ident),+]) => {
update_field!($pool, $error, $reminder.[$field]);
update_field!($pool, $error, $reminder.[$($fields),+]);
};
}
macro_rules! json_err {
($message:expr) => {
Err(json!({ "error": $message }))
};
}