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187 lines
6.6 KiB
Rust
187 lines
6.6 KiB
Rust
/*
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* Copyright (c) 2020-2023, Stalwart Labs Ltd.
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*
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* This file is part of the Stalwart Sieve Interpreter.
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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 serde::{Deserialize, Serialize};
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use crate::sieve::compiler::{
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grammar::{instruction::CompilerState, test::Test, Capability, Comparator},
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lexer::{word::Word, Token},
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CompileError, Value,
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};
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use crate::sieve::compiler::grammar::{AddressPart, MatchType};
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#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
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pub(crate) struct TestAddress {
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pub header_list: Vec<Value>,
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pub key_list: Vec<Value>,
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pub address_part: AddressPart,
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pub match_type: MatchType,
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pub comparator: Comparator,
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pub index: Option<i32>,
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pub mime_anychild: bool,
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pub is_not: bool,
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}
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impl<'x> CompilerState<'x> {
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pub(crate) fn parse_test_address(&mut self) -> Result<Test, CompileError> {
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let mut address_part = AddressPart::All;
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let mut match_type = MatchType::Is;
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let mut comparator = Comparator::AsciiCaseMap;
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let mut header_list = None;
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let mut key_list;
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let mut index = None;
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let mut index_last = false;
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let mut mime = false;
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let mut mime_anychild = false;
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loop {
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let token_info = self.tokens.unwrap_next()?;
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match token_info.token {
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Token::Tag(
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word @ (Word::LocalPart
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| Word::Domain
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| Word::All
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| Word::User
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| Word::Detail
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| Word::Name),
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) => {
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self.validate_argument(
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1,
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if matches!(word, Word::User | Word::Detail) {
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Capability::SubAddress.into()
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} else {
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None
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},
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token_info.line_num,
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token_info.line_pos,
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)?;
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address_part = word.into();
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}
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Token::Tag(
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word @ (Word::Is
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| Word::Contains
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| Word::Matches
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| Word::Value
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| Word::Count
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| Word::Regex
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| Word::List),
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) => {
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self.validate_argument(
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2,
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match word {
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Word::Value | Word::Count => Capability::Relational.into(),
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Word::Regex => Capability::Regex.into(),
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Word::List => Capability::ExtLists.into(),
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_ => None,
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},
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token_info.line_num,
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token_info.line_pos,
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)?;
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match_type = self.parse_match_type(word)?;
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}
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Token::Tag(Word::Comparator) => {
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self.validate_argument(3, None, token_info.line_num, token_info.line_pos)?;
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comparator = self.parse_comparator()?;
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}
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Token::Tag(Word::Index) => {
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self.validate_argument(
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4,
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Capability::Index.into(),
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token_info.line_num,
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token_info.line_pos,
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)?;
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index = (self.tokens.expect_number(u16::MAX as usize)? as i32).into();
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}
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Token::Tag(Word::Last) => {
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self.validate_argument(
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5,
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Capability::Index.into(),
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token_info.line_num,
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token_info.line_pos,
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)?;
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index_last = true;
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}
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Token::Tag(Word::Mime) => {
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self.validate_argument(
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6,
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Capability::Mime.into(),
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token_info.line_num,
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token_info.line_pos,
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)?;
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mime = true;
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}
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Token::Tag(Word::AnyChild) => {
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self.validate_argument(
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7,
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Capability::Mime.into(),
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token_info.line_num,
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token_info.line_pos,
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)?;
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mime_anychild = true;
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}
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_ => {
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if header_list.is_none() {
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header_list = self.parse_strings_token(token_info)?.into();
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} else {
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key_list = self.parse_strings_token(token_info)?;
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break;
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}
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}
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}
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}
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if !mime && mime_anychild {
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return Err(self.tokens.unwrap_next()?.missing_tag(":mime"));
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}
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self.validate_match(&match_type, &mut key_list)?;
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Ok(Test::Address(TestAddress {
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header_list: header_list.unwrap(),
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key_list,
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address_part,
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match_type,
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comparator,
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index: if index_last { index.map(|i| -i) } else { index },
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mime_anychild,
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is_not: false,
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}))
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}
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}
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impl From<Word> for AddressPart {
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fn from(word: Word) -> Self {
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match word {
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Word::LocalPart => AddressPart::LocalPart,
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Word::Domain => AddressPart::Domain,
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Word::All => AddressPart::All,
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Word::User => AddressPart::User,
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Word::Detail => AddressPart::Detail,
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Word::Name => AddressPart::Name,
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_ => unreachable!(),
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}
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}
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}
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