feat: validate seeds and peers

Author: Benzbeeb

models/weaveinit/run_l1_node.go

@@ -301,11 +301,13 @@ type MinGasPriceInput struct {
 }
 
 func NewMinGasPriceInput(state *RunL1NodeState) *MinGasPriceInput {
-	return &MinGasPriceInput{
+	model := &MinGasPriceInput{
 		TextInput: utils.NewTextInput(),
 		state:     state,
 		question:  "Please specify min-gas-price (uinit)",
 	}
+	model.WithValidatorFn(utils.ValidateDecCoin)
+	return model
 }
 
 func (m *MinGasPriceInput) GetQuestion() string {
@@ -401,11 +403,13 @@ type SeedsInput struct {
 }
 
 func NewSeedsInput(state *RunL1NodeState) *SeedsInput {
-	return &SeedsInput{
+	model := &SeedsInput{
 		TextInput: utils.NewTextInput(),
 		state:     state,
 		question:  "Please specify the seeds",
 	}
+	model.WithValidatorFn(utils.IsValidPeerOrSeed)
+	return model
 }
 
 func (m *SeedsInput) GetQuestion() string {
@@ -438,11 +442,13 @@ type PersistentPeersInput struct {
 }
 
 func NewPersistentPeersInput(state *RunL1NodeState) *PersistentPeersInput {
-	return &PersistentPeersInput{
+	model := &PersistentPeersInput{
 		TextInput: utils.NewTextInput(),
 		state:     state,
 		question:  "Please specify the persistent_peers",
 	}
+	model.WithValidatorFn(utils.IsValidPeerOrSeed)
+	return model
 }
 
 func (m *PersistentPeersInput) GetQuestion() string {

utils/validate.go

@@ -145,3 +145,39 @@ func ValidateMnemonic(mnemonic string) error {
 	}
 	return nil
 }
+
+// IsValidPeerOrSeed checks if each address in a comma-separated list is valid
+// It allows empty strings and returns an error if any address is invalid
+func IsValidPeerOrSeed(addresses string) error {
+	// Compile the regular expression once
+	peerRegex, err := regexp.Compile(`^[a-f0-9]{40}@[a-zA-Z0-9\.\-]+(:[0-9]+)?$`)
+	if err != nil {
+		return fmt.Errorf("failed to compile regex: %v", err)
+	}
+
+	// Split the input string by commas to handle multiple addresses
+	addressList := strings.Split(addresses, ",")
+
+	var invalidAddresses []string
+
+	// Iterate over each address and validate
+	for _, address := range addressList {
+		address = strings.TrimSpace(address) // Remove any leading/trailing spaces
+
+		// Skip empty strings, as they're considered valid
+		if address == "" {
+			continue
+		}
+
+		if !peerRegex.MatchString(address) {
+			invalidAddresses = append(invalidAddresses, address)
+		}
+	}
+
+	if len(invalidAddresses) > 0 {
+		// Return an error listing all invalid addresses
+		return errors.New("invalid peer/seed addresses: " + strings.Join(invalidAddresses, ", "))
+	}
+
+	return nil
+}