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98 lines
3.6 KiB
Rust
98 lines
3.6 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 crate::sieve::compiler::{
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grammar::{instruction::CompilerState, Capability, Comparator},
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lexer::{word::Word, Token},
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CompileError, Value, VariableType,
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};
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use crate::sieve::compiler::grammar::{test::Test, MatchType};
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use super::test_string::TestString;
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impl<'x> CompilerState<'x> {
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pub(crate) fn parse_test_environment(&mut self) -> Result<Test, CompileError> {
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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 name = None;
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let mut key_list;
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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::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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) => {
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self.validate_argument(
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1,
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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(2, 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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_ => {
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if name.is_none() {
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if let Token::StringConstant(s) = token_info.token {
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name = Value::Variable(VariableType::Environment(
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s.into_string().to_lowercase(),
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))
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.into();
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} else {
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return Err(token_info.expected("environment variable"));
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}
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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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self.validate_match(&match_type, &mut key_list)?;
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Ok(Test::Environment(TestString {
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source: vec![name.unwrap()],
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key_list,
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match_type,
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comparator,
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is_not: false,
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}))
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}
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}
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