460 lines
15 KiB
Rust
460 lines
15 KiB
Rust
use crate::{get_now_iso, random_string, AccountWolves, Accounts, AccountsNew, Config, State};
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use ldap3::{exop::PasswordModify, LdapConn, Scope};
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use lettre::{
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message::{header, MultiPart, SinglePart},
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transport::smtp::authentication::Credentials,
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Message, SmtpTransport, Transport,
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};
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use maud::html;
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use sqlx::{Error, Pool, Sqlite};
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use std::collections::HashSet;
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use tide::{
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prelude::{json, Deserialize},
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Request,
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};
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pub mod email {
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use super::*;
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#[derive(Debug, Deserialize)]
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struct SignupEmail {
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email: String,
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}
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pub async fn submit(mut req: Request<State>) -> tide::Result {
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let SignupEmail {
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email,
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} = req.body_json().await?;
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let config = &req.state().config;
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let db = &req.state().db;
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for record in get_wolves_mail(db, &email).await {
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// skynet emails not permitted
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if record.email.trim().ends_with("@skynet.ie") {
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continue;
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}
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// check if the email is already in the db
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if !check(db, &record.email).await {
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continue;
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}
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// generate a auth key
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let auth = random_string(75);
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match send_mail(config, &record, &auth) {
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Ok(_) => match save_to_db(db, &record, &auth).await {
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Ok(_) => {}
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Err(e) => {
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println!("Unable to save to db {} {e:?}", &record.email);
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}
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},
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Err(e) => {
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println!("Unable to send mail to {} {e:?}", &record.email);
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}
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}
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}
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Ok(json!({"result": "success"}).into())
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}
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pub async fn get_wolves_mail(db: &Pool<Sqlite>, mail: &str) -> Vec<AccountWolves> {
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sqlx::query_as::<_, AccountWolves>(
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r#"
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SELECT *
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FROM accounts_wolves
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WHERE email = ?
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"#,
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)
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.bind(mail)
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.fetch_all(db)
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.await
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.unwrap_or(vec![])
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}
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async fn check(db: &Pool<Sqlite>, mail: &str) -> bool {
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check_pending(db, mail).await && check_users(db, mail).await
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}
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async fn check_users(db: &Pool<Sqlite>, mail: &str) -> bool {
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sqlx::query_as::<_, Accounts>(
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r#"
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SELECT *
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FROM accounts
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WHERE mail == ?
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"#,
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)
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.bind(mail)
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.fetch_all(db)
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.await
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.unwrap_or(vec![])
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.is_empty()
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}
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async fn check_pending(db: &Pool<Sqlite>, mail: &str) -> bool {
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sqlx::query_as::<_, AccountsNew>(
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r#"
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SELECT *
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FROM accounts_new
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WHERE mail == ?
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"#,
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)
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.bind(mail)
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.fetch_all(db)
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.await
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.unwrap_or(vec![])
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.is_empty()
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}
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// using https://github.com/lettre/lettre/blob/57886c367d69b4d66300b322c94bd910b1eca364/examples/maud_html.rs
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fn send_mail(config: &Config, record: &AccountWolves, auth: &str) -> Result<lettre::transport::smtp::response::Response, lettre::transport::smtp::Error> {
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let recipient = &record.name_first;
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let mail = &record.email;
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let url_base = "https://account.skynet.ie";
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let link_new = format!("{url_base}/register?auth={auth}");
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let link_mod = format!("{url_base}/modify");
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let discord = "https://discord.skynet.ie";
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let sender = format!("UL Computer Society <{}>", &config.mail_user);
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// Create the html we want to send.
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let html = html! {
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head {
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title { "Hello from Skynet!" }
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style type="text/css" {
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"h2, h4 { font-family: Arial, Helvetica, sans-serif; }"
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}
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}
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div style="display: flex; flex-direction: column; align-items: center;" {
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h2 { "Hello from Skynet!" }
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// Substitute in the name of our recipient.
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p { "Hi " (recipient) "," }
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p {
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"As part of the UL Computer Society you get an account on our Skynet cluster."
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br;
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"This gives you access to some of teh various services we offer:"
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ul {
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li { "Email" }
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li { "Gitlab" }
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li { "Linux Webhost" }
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}
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br;
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"The following invite will remain active until the end of year."
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}
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p {
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"If you are a new member please use the following link:"
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br;
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a href=(link_new) { (link_new) }
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}
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p {
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"If you are a returning user please set an email for your account at:"
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br;
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a href=(link_mod) { (link_mod) }
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}
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p {
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"If you have issues please refer to our Discord server:"
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br;
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a href=(discord) { (discord) }
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}
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p {
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"Skynet Team"
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br;
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"UL Computer Society"
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}
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}
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};
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let body_text = format!(
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r#"
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Hi {recipient}
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As part of the UL Computer Society you get an account on our Skynet cluster.
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This gives you access to some of teh various services we offer:
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* Email
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* Gitlab
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* Linux Webhost
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The following invite will remain active until the end of year.
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If you are a new member please use the following link:
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{link_new}
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If you are a returning user please set an email for your account at:
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{link_mod}
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If you have issues please refer to our Discord server:
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{discord}
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Skynet Team
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UL Computer Society
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"#
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);
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// Build the message.
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let email = Message::builder()
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.from(sender.parse().unwrap())
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.to(mail.parse().unwrap())
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.subject("Skynet: New Account.")
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.multipart(
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// This is composed of two parts.
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// also helps not trip spam settings (uneven number of url's
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MultiPart::alternative()
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.singlepart(SinglePart::builder().header(header::ContentType::TEXT_PLAIN).body(body_text))
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.singlepart(SinglePart::builder().header(header::ContentType::TEXT_HTML).body(html.into_string())),
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)
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.expect("failed to build email");
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let creds = Credentials::new(config.mail_user.clone(), config.mail_pass.clone());
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// Open a remote connection to gmail using STARTTLS
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let mailer = SmtpTransport::starttls_relay(&config.mail_smtp).unwrap().credentials(creds).build();
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// Send the email
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mailer.send(&email)
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}
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async fn save_to_db(db: &Pool<Sqlite>, record: &AccountWolves, auth: &str) -> Result<Option<AccountsNew>, sqlx::Error> {
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sqlx::query_as::<_, AccountsNew>(
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"
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INSERT OR REPLACE INTO accounts_new (mail, auth_code, date_iso, date_expiry, name_first, name_surname, id_student)
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VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7)
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",
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)
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.bind(record.email.to_owned())
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.bind(auth.to_owned())
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.bind(get_now_iso(false))
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.bind(record.expiry.to_owned())
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.bind(record.name_first.to_owned())
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.bind(record.name_second.to_owned())
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.bind(record.id_student.to_owned())
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.fetch_optional(db)
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.await
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}
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}
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pub mod account {
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use super::*;
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use crate::update_group;
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#[derive(Debug, Deserialize)]
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struct LdapNewUser {
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auth: String,
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user: String,
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pass: String,
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}
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/// Handles initial detail entering page
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/// Verify users have access to said email
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/// Get users to set username and password.
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pub async fn submit(mut req: Request<State>) -> tide::Result {
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let LdapNewUser {
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auth,
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user,
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pass,
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} = req.body_json().await?;
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let config = &req.state().config;
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let db = &req.state().db;
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// ensure there are no old requests
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db_pending_clear_expired(db).await?;
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let user_db = if let Some(x) = db_get_user(db, &auth).await {
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x
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} else {
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return Ok(json!({"result": "error", "error": "Invalid auth"}).into());
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};
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if let Some(error) = is_valid_name(&user) {
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return Ok(json!({"result": "error", "error": error}).into());
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}
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// easier to give each request its own connection
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let mut ldap = LdapConn::new(&config.ldap_host)?;
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// ldap3 docs say a blank username and pass is an anon bind
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ldap.simple_bind("", "")?.success()?;
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let filter_dn = format!("(uid={})", &user);
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if let Ok(x) = ldap.search("ou=users,dc=skynet,dc=ie", Scope::OneLevel, &filter_dn, vec!["*"]) {
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if let Ok((rs, _res)) = x.success() {
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if !rs.is_empty() {
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return Ok(json!({"result": "error", "error": "username not available"}).into());
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}
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}
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}
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// done with anon ldap
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ldap.unbind()?;
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ldap_create_account(config, db, user_db, &user, &pass).await?;
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// account now created, delete from the new table
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account_verification_clear_pending(db, &auth).await?;
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Ok(json!({"result": "success"}).into())
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}
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// clear the db of expired ones before checking for username and validating inputs
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async fn db_pending_clear_expired(pool: &Pool<Sqlite>) -> Result<Vec<AccountsNew>, Error> {
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sqlx::query_as::<_, AccountsNew>(
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r#"
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DELETE
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FROM accounts_new
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WHERE date_expiry < ?
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"#,
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)
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.bind(get_now_iso(true))
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.fetch_all(pool)
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.await
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}
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fn is_valid_name(name: &str) -> Option<String> {
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// max length is 31 chars
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if name.len() >= 32 {
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return Some(String::from("Too long, max len 31"));
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}
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for (index, letter) in name.chars().enumerate() {
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// no uppercase characters allowed
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if letter.is_ascii_uppercase() {
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return Some(String::from("Has uppercase"));
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}
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if index == 0 {
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// first character ahs to be either a letter or underscore
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if !(letter.is_ascii_alphabetic() || letter == '_') {
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return Some(String::from("Does not start with letter or _"));
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}
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} else {
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// after first character options are more relaxed
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if !(letter.is_ascii_alphabetic() || letter.is_ascii_digit() || letter == '_' || letter == '-') {
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return Some(String::from("Contains character that is not letter, number, _ or -"));
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}
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}
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}
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None
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}
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async fn db_get_user(pool: &Pool<Sqlite>, auth: &str) -> Option<AccountsNew> {
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if let Ok(res) = sqlx::query_as::<_, AccountsNew>(
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r#"
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SELECT *
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FROM accounts_new
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WHERE auth_code == ?
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"#,
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)
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.bind(auth)
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.fetch_all(pool)
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.await
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{
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if !res.is_empty() {
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return Some(res[0].to_owned());
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}
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}
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None
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}
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async fn ldap_create_account(config: &Config, db: &Pool<Sqlite>, user: AccountsNew, username: &str, pass: &str) -> Result<(), ldap3::LdapError> {
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let mut ldap = LdapConn::new(&config.ldap_host)?;
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ldap.simple_bind(&config.ldap_admin, &config.ldap_admin_pw)?.success()?;
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let dn = format!("uid={},ou=users,dc=skynet,dc=ie", username);
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let cn = format!("{} {}", &user.name_first, &user.name_surname);
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let home_directory = format!("/home/{}", username);
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let password_tmp = random_string(50);
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let labeled_uri = format!("ldap:///ou=groups,dc=skynet,dc=ie??sub?(&(objectclass=posixgroup)(memberuid={}))", username);
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let sk_mail = format!("{}@skynet.ie", username);
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let sk_created = get_sk_created();
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let uid_number = get_max_uid_number(db).await;
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// create user
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ldap.add(
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&dn,
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vec![
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("objectClass", HashSet::from(["top", "person", "posixaccount", "ldapPublicKey", "inetOrgPerson", "skPerson"])),
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// top
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("ou", HashSet::from(["users"])),
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// person
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("uid", HashSet::from([username])),
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("cn", HashSet::from([cn.as_str()])),
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// posixaccount
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("uidNumber", HashSet::from([uid_number.to_string().as_str()])),
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("gidNumber", HashSet::from(["1001"])),
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("homedirectory", HashSet::from([home_directory.as_str()])),
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("userpassword", HashSet::from([password_tmp.as_str()])),
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// inetOrgPerson
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("mail", HashSet::from([user.mail.as_str()])),
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("sn", HashSet::from([user.name_surname.as_str()])),
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// skPerson
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("labeledURI", HashSet::from([labeled_uri.as_str()])),
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("skMail", HashSet::from([sk_mail.as_str()])),
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("skID", HashSet::from([user.id_student.as_str()])),
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("skCreated", HashSet::from([sk_created.as_str()])),
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// 1 = secure, automatic since its a new account
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("skSecure", HashSet::from(["1"])),
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// quotas
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("quotaEmail", HashSet::from(["10737418240"])),
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("quotaDisk", HashSet::from(["10737418240"])),
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],
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)?
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.success()?;
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// now to properly set teh password
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let tmp = PasswordModify {
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user_id: Some(&dn),
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old_pass: None,
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new_pass: Some(pass),
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};
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ldap.extended(tmp).unwrap();
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// user is already verified by being an active member on wolves
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if let Err(e) = update_group(config, "skynet-users", &vec![username.to_string()], false).await {
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println!("Couldnt add {} to skynet-users: {:?}", username, e)
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}
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ldap.unbind()?;
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Ok(())
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}
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fn get_sk_created() -> String {
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use chrono::Utc;
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let now = Utc::now();
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format!("{}", now.format("%Y%m%d%H%M%SZ"))
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}
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async fn get_max_uid_number(db: &Pool<Sqlite>) -> i64 {
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if let Ok(results) = sqlx::query_as::<_, Accounts>(
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r#"
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SELECT *
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FROM accounts
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ORDER BY uid DESC
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LIMIT 1
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"#,
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)
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.fetch_all(db)
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.await
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{
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if !results.is_empty() {
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return results[0].uid + 1;
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}
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}
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9999
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}
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async fn account_verification_clear_pending(db: &Pool<Sqlite>, auth_code: &str) -> Result<Vec<AccountsNew>, Error> {
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sqlx::query_as::<_, AccountsNew>(
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r#"
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DELETE FROM accounts_new
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WHERE auth_code == ?
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"#,
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)
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.bind(auth_code)
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.fetch_all(db)
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.await
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}
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}
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