swanadiva
6fd25e4d02
- Add AppError with error codes and hints system - Implement ConnectionError for SSH-specific errors - Add HandleSSHError for intelligent SSH error parsing - Add FormatConnectionError for user-friendly output - All 5 test functions passing (TestAppError, TestConnectionError, TestHandleSSHError, TestHandleSSHErrorNil, TestFormatConnectionError) - Update PROJECT_STATE.md to reflect Task 4 completion Progress: Tasks 1-4 complete (~30%)
105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
package errors
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import (
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"fmt"
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"strings"
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)
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// ConnectionError represents SSH connection errors with helpful hints
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type ConnectionError struct {
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Type string // "auth", "network", "timeout", "config", "unknown"
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Message string
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Details string
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Hints []string
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}
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// Error implements the error interface
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func (e *ConnectionError) Error() string {
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return fmt.Sprintf("Connection Error (%s): %s\nDetails: %s", e.Type, e.Message, e.Details)
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}
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// NewConnectionError creates a new ConnectionError
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func NewConnectionError(errType, message, details string, hints []string) *ConnectionError {
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return &ConnectionError{
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Type: errType,
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Message: message,
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Details: details,
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Hints: hints,
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}
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}
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// HandleSSHError processes SSH errors and returns user-friendly errors
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func HandleSSHError(err error) *ConnectionError {
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if err == nil {
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return nil
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}
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errStr := err.Error()
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switch {
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case strings.Contains(errStr, "connection refused"):
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return &ConnectionError{
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Type: "network",
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Message: "Cannot connect to server",
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Details: errStr,
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Hints: []string{"Check if server is running", "Verify firewall rules", "Confirm hostname and port"},
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}
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case strings.Contains(errStr, "authentication failed"), strings.Contains(errStr, "unable to authenticate"):
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return &ConnectionError{
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Type: "auth",
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Message: "Authentication failed",
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Details: errStr,
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Hints: []string{"Verify username and password", "Check SSH key is loaded", "Test with native SSH client"},
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}
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case strings.Contains(errStr, "timeout"), strings.Contains(errStr, "timed out"):
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return &ConnectionError{
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Type: "timeout",
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Message: "Connection timeout",
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Details: errStr,
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Hints: []string{"Check network connectivity", "Try increasing timeout", "Verify server is reachable"},
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}
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case strings.Contains(errStr, "no such host"), strings.Contains(errStr, "hostname"):
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return &ConnectionError{
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Type: "config",
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Message: "Invalid hostname",
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Details: errStr,
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Hints: []string{"Verify hostname spelling", "Check DNS resolution", "Try IP address instead"},
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}
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case strings.Contains(errStr, "permission denied"):
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return &ConnectionError{
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Type: "auth",
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Message: "Permission denied",
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Details: errStr,
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Hints: []string{"Check user permissions on server", "Verify account is not locked", "Check authentication method"},
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}
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default:
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return &ConnectionError{
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Type: "unknown",
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Message: "Connection failed",
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Details: errStr,
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Hints: []string{"Check host configuration", "Verify network settings", "Test with standard SSH client"},
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}
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}
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}
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// FormatConnectionError formats connection error for user-friendly display
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func FormatConnectionError(err *ConnectionError) string {
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var output strings.Builder
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output.WriteString(fmt.Sprintf("❌ Connection Error: %s\n\n", err.Message))
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output.WriteString(fmt.Sprintf("Details: %s\n\n", err.Details))
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if len(err.Hints) > 0 {
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output.WriteString("Possible solutions:\n")
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for i, hint := range err.Hints {
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output.WriteString(fmt.Sprintf(" %d. %s\n", i+1, hint))
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}
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}
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return output.String()
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} |