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116 lines
2.4 KiB
116 lines
2.4 KiB
// Copyright (c) 2022 Proton AG |
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// |
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// This file is part of Proton Mail Bridge. |
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// |
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// Proton Mail Bridge 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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// Proton Mail Bridge 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 Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>. |
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package settings |
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import ( |
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"io/ioutil" |
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"strconv" |
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"sync" |
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"github.com/ghodss/yaml" |
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"github.com/sirupsen/logrus" |
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) |
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type keyValueStore struct { |
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cache map[string]string |
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path string |
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lock *sync.RWMutex |
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} |
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// newKeyValueStore returns loaded preferences. |
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func newKeyValueStore(path string) *keyValueStore { |
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p := &keyValueStore{ |
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path: path, |
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lock: &sync.RWMutex{}, |
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} |
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if err := p.load(); err != nil { |
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logrus.WithError(err).Warn("Cannot load preferences file, using defaults") |
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} |
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return p |
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} |
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func (p *keyValueStore) load() error { |
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if p.cache != nil { |
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return nil |
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} |
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p.lock.Lock() |
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defer p.lock.Unlock() |
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p.cache = map[string]string{} |
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data, err := ioutil.ReadFile(p.path) |
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if err != nil { |
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return err |
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} |
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if len(data) == 0 { |
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return nil |
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} |
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return yaml.Unmarshal(data, &p.cache) |
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} |
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func (p *keyValueStore) setDefault(key, value string) { |
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if p.Get(key) == "" { |
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p.set(key, value) |
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} |
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} |
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func (p *keyValueStore) Get(key string) string { |
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p.lock.RLock() |
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defer p.lock.RUnlock() |
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return p.cache[key] |
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} |
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func (p *keyValueStore) GetBool(key string) bool { |
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return p.Get(key) == "true" |
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} |
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func (p *keyValueStore) GetInt(key string) int { |
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if p.Get(key) == "" { |
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return 0 |
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} |
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value, err := strconv.Atoi(p.Get(key)) |
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if err != nil { |
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logrus.WithError(err).Error("Cannot parse int") |
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} |
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return value |
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} |
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func (p *keyValueStore) GetFloat64(key string) float64 { |
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if p.Get(key) == "" { |
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return 0 |
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} |
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value, err := strconv.ParseFloat(p.Get(key), 64) |
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if err != nil { |
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logrus.WithError(err).Error("Cannot parse float64") |
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} |
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return value |
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} |
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func (p *keyValueStore) set(key, value string) { |
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p.lock.Lock() |
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p.cache[key] = value |
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p.lock.Unlock() |
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}
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