Module validation 

Input validation for AT Protocol handles and DIDs.

Validates AT Protocol identifiers including handles, DIDs, and TLDs following RFC 1035 and AT Protocol specifications.

• strip_handle_prefixes - Removes common handle prefixes (@, at://)

DID Validation

• is_valid_did_method_plc - Validates PLC DIDs (did:plc:...)
• is_valid_did_method_web - Validates Web DIDs (did:web:...)
• is_valid_did_method_webvh - Validates WebVH DIDs (did:webvh:...)

Network Address Validation

• is_valid_hostname - RFC 1035 compliant hostname validation
• is_ipv4 - IPv4 address validation
• is_ipv6 - IPv6 address validation

Utility Functions

• is_valid_base58_btc - Base58-btc alphabet character validation

Examples

use atproto_identity::validation::*;

// Handle validation
assert_eq!(is_valid_handle("@alice.bsky.social"), Some("alice.bsky.social".to_string()));

// DID validation
assert!(is_valid_did_method_plc("did:plc:z3f2222fa222f5c33c2f27ez"));
assert!(is_valid_did_method_web("did:web:example.com", true));
assert!(is_valid_did_method_webvh("did:webvh:abc123:example.com", true));

// Network validation
assert!(is_valid_hostname("example.com"));
assert!(is_ipv4("192.168.1.1"));
assert!(is_ipv6("2001:db8::1"));

Functions

is_ipv4

Checks if a string is a valid IPv4 address.

is_ipv6

Checks if a string is a valid IPv6 address.

is_valid_base58_btc

Checks if a string contains only base58-btc alphabet characters.

is_valid_did_method_plc

Validates if a string is a properly formatted PLC DID.

is_valid_did_method_web

Validates if a string is a properly formatted Web DID.

is_valid_did_method_webvh

Validates if a string is a properly formatted WebVH DID.

is_valid_handle

Validates and normalizes an AT Protocol handle.

is_valid_hostname

Validates if a string is a valid hostname according to RFC 1035.

strip_handle_prefixes

Strips common AT Protocol handle prefixes from a handle string.