81 lines
2.2 KiB
Go
81 lines
2.2 KiB
Go
/*
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* Copyright (C) 2020-2022, IrineSistiana
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*
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* This file is part of mosdns.
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*
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* mosdns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* mosdns 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package domain
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import (
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"bufio"
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"errors"
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"fmt"
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"github.com/IrineSistiana/mosdns/v5/pkg/utils"
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"io"
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"strings"
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"unicode"
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)
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// ParseStringFunc parse data string to matcher pattern and additional attributions.
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type ParseStringFunc[T any] func(s string) (pattern string, v T, err error)
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// check if s only contains a domain pattern (no other section, no space).
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func patternOnly[T any](s string) (pattern string, v T, err error) {
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if strings.IndexFunc(s, unicode.IsSpace) != -1 {
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return "", v, errors.New("rule string has more than one section")
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}
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return s, v, nil
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}
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// Load loads data from a string, parsing it with parseString function.
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func Load[T any](m WriteableMatcher[T], s string, parseString ParseStringFunc[T]) error {
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if parseString == nil {
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parseString = patternOnly[T]
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}
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pattern, v, err := parseString(s)
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if err != nil {
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return err
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}
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return m.Add(pattern, v)
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}
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// LoadFromTextReader loads multiple lines from reader r. r
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func LoadFromTextReader[T any](m WriteableMatcher[T], r io.Reader, parseString ParseStringFunc[T]) error {
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lineCounter := 0
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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lineCounter++
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s := scanner.Text()
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s = utils.RemoveComment(s, "#")
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s = strings.TrimSpace(s)
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if len(s) == 0 {
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continue
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}
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err := Load(m, s, parseString)
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if err != nil {
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return fmt.Errorf("line %d: %v", lineCounter, err)
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}
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}
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return scanner.Err()
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}
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func NewDomainMixMatcher() *MixMatcher[struct{}] {
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mixMatcher := NewMixMatcher[struct{}]()
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mixMatcher.SetDefaultMatcher(MatcherDomain)
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return mixMatcher
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}
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