feat: support QQMusic from AppStore

internal/mmkv/mmkv.go

@@ -0,0 +1,71 @@
+package mmkv
+
+import (
+	"fmt"
+	"os"
+
+	"git.um-react.app/um/cli/algo/common"
+	"git.um-react.app/um/cli/internal/utils"
+	go_mmkv "github.com/unlock-music/go-mmkv"
+	"go.uber.org/zap"
+)
+
+func Merge(keys ...common.QMCKeys) common.QMCKeys {
+	result := make(common.QMCKeys)
+	for _, k := range keys {
+		for key, value := range k {
+			result[utils.NormalizeUnicode(key)] = utils.NormalizeUnicode(value)
+		}
+	}
+	return result
+}
+
+func LoadFromPath(path string, key string, logger *zap.Logger) (result common.QMCKeys, err error) {
+	mmkv_path := path
+	mmkv_crc := path + ".crc"
+
+	mr, err := os.Open(mmkv_path)
+	if err != nil {
+		logger.Error("LoadMMKV: Could not open mmkv file", zap.Error(err))
+		return nil, fmt.Errorf("LoadMMKV: open error: %w", err)
+	}
+	defer mr.Close()
+
+	cr, err := os.Open(mmkv_crc)
+	if err != nil {
+		// crc is optional
+		logger.Warn("LoadMMKV: Failed to open crc file, assuming no encryption", zap.Error(err))
+		key = ""
+	} else {
+		defer cr.Close()
+	}
+
+	var password []byte = nil
+	if key != "" {
+		password = make([]byte, 16)
+		copy(password, []byte(key))
+	}
+	mmkv, err := go_mmkv.NewMMKVReader(mr, password, cr)
+	if err != nil {
+		logger.Error("LoadMMKV: failed to create reader", zap.Error(err))
+		return nil, fmt.Errorf("LoadMMKV: NewMMKVReader error: %w", err)
+	}
+
+	result = make(common.QMCKeys)
+	for !mmkv.IsEOF() {
+		key, err := mmkv.ReadKey()
+		if err != nil {
+			logger.Error("LoadMMKV: read key error", zap.Error(err))
+			return nil, fmt.Errorf("LoadMMKV: read key error: %w", err)
+		}
+		value, err := mmkv.ReadStringValue()
+		if err != nil {
+			logger.Error("LoadMMKV: read value error", zap.Error(err))
+			return nil, fmt.Errorf("LoadMMKV: read value error: %w", err)
+		}
+		logger.Debug("LoadMMKV: read", zap.String("key", key), zap.String("value", value))
+		result[utils.NormalizeUnicode(key)] = utils.NormalizeUnicode(value)
+	}
+
+	return result, nil
+}