60 lines
2.1 KiB
Rust
60 lines
2.1 KiB
Rust
/*
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* Copyright (c) 2023 Stalwart Labs Ltd.
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*
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* This file is part of Stalwart Mail Server.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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* in the LICENSE file at the top-level directory of this distribution.
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* You can be released from the requirements of the AGPLv3 license by
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* purchasing a commercial license. Please contact licensing@stalw.art
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* for more details.
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*/
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use ahash::AHashSet;
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#[derive(Debug, Clone, Default)]
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pub struct PublicSuffix {
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pub suffixes: AHashSet<String>,
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pub exceptions: AHashSet<String>,
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pub wildcards: Vec<String>,
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}
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impl PublicSuffix {
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pub fn contains(&self, suffix: &str) -> bool {
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self.suffixes.contains(suffix)
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|| (!self.exceptions.contains(suffix)
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&& self.wildcards.iter().any(|w| suffix.ends_with(w)))
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}
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}
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impl From<&str> for PublicSuffix {
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fn from(list: &str) -> Self {
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let mut ps = PublicSuffix::default();
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for line in list.lines() {
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let line = line.trim().to_lowercase();
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if !line.starts_with("//") {
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if let Some(domain) = line.strip_prefix('*') {
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ps.wildcards.push(domain.to_string());
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} else if let Some(domain) = line.strip_prefix('!') {
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ps.exceptions.insert(domain.to_string());
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} else {
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ps.suffixes.insert(line.to_string());
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}
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}
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}
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ps.suffixes.insert("onion".to_string());
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ps
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}
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}
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