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// check-if-email-exists
// Copyright (C) 2018-2022 Reacher
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
use super::syntax::SyntaxDetails;
use serde::{Deserialize, Serialize};
use std::default::Default;
const ROLE_ACCOUNTS: &str = include_str!("./util/roles.json");
/// Miscelleanous details about the email address.
#[derive(Debug, Default, Deserialize, Serialize)]
pub struct MiscDetails {
/// Is this a DEA (disposable email account)?
pub is_disposable: bool,
/// Is this email a role-based account?
pub is_role_account: bool,
}
/// Error occured connecting to this email server via SMTP. Right now this
/// enum has no variant, as `check_misc` cannot fail. But putting a placeholder
/// right now to avoid future breaking changes.
#[derive(Debug, Serialize)]
#[serde(tag = "type", content = "message")]
pub enum MiscError {}
/// Fetch misc details about the email address, such as whether it's disposable.
pub fn check_misc(syntax: &SyntaxDetails) -> MiscDetails {
let role_accounts: Vec<&str> =
serde_json::from_str(ROLE_ACCOUNTS).expect("roles.json is a valid json. qed.");
MiscDetails {
// mailchecker::is_valid checks also if the syntax is valid. But if
// we're here, it means we're sure the syntax is valid, so is_valid
// actually will only check if it's disposable.
is_disposable: !mailchecker::is_valid(
syntax
.address
.as_ref()
.expect("We already checked that the syntax was valid. qed.")
.to_string()
.as_ref(),
),
is_role_account: role_accounts.contains(&syntax.username.to_lowercase().as_ref()),
}
}