54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package walletconnect
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import (
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"encoding/json"
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"errors"
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"fmt"
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"regexp"
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"strconv"
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"strings"
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)
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// Returns namspace name, chainID and error
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func parseCaip2ChainID(str string) (string, uint64, error) {
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caip2 := strings.Split(str, ":")
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if len(caip2) != 2 {
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return "", 0, errors.New("CAIP-2 string is not valid")
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}
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chainIDStr := caip2[1]
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chainID, err := strconv.ParseUint(chainIDStr, 10, 64)
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if err != nil {
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return "", 0, fmt.Errorf("CAIP-2 second value not valid Chain ID: %w", err)
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}
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return caip2[0], chainID, nil
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}
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// JSONProxyType provides a generic way of changing the JSON value before unmarshalling it into the target.
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// transform function is called before unmarshalling.
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type JSONProxyType struct {
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target interface{}
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transform func([]byte) ([]byte, error)
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}
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func (b *JSONProxyType) UnmarshalJSON(input []byte) error {
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if b.transform == nil {
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return errors.New("transform function is not set")
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}
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output, err := b.transform(input)
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if err != nil {
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return err
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}
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return json.Unmarshal(output, b.target)
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}
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func isValidNamespaceName(namespaceName string) bool {
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pattern := "^[a-z0-9-]{3,8}$"
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regex := regexp.MustCompile(pattern)
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return regex.MatchString(namespaceName)
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}
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