From 044d3de4981af84a7e6caab2d79ac273f77d7124 Mon Sep 17 00:00:00 2001 From: Bryan Newbold Date: Thu, 7 Dec 2017 23:27:41 -0800 Subject: parse_dat_address() helper --- src/lib.rs | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) (limited to 'src/lib.rs') diff --git a/src/lib.rs b/src/lib.rs index bc62d78..63000f7 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -78,3 +78,46 @@ pub fn make_discovery_key(key: &[u8]) -> Vec { discovery_key.to_vec() } +/// Helper to parse a dat address (aka, public key) in string format. +/// +/// Address can start with 'dat://'. It should contain 64 hexadecimal characters. +pub fn parse_dat_address(input: &str) -> Result> { + + let raw_key = if input.starts_with("dat://") { + &input[6..] + } else { + input + }; + if raw_key.len() != 32 * 2 { + bail!("dat key not correct length"); + } + let mut key_bytes = vec![]; + for i in 0..32 { + let r = u8::from_str_radix(&raw_key[2 * i..2 * i + 2], 16); + match r { + Ok(b) => key_bytes.push(b), + Err(e) => bail!("Problem with hex: {}", e), + }; + } + Ok(key_bytes) +} + +#[test] +fn test_parse_dat_address() { + + assert!(parse_dat_address( + "c7638882870abd4044d6467b0738f15e3a36f57c3a7f7f3417fd7e4e0841d597").is_ok()); + assert!(parse_dat_address( + "C7638882870ABD4044D6467B0738F15E3A36F57C3A7F7F3417FD7E4E0841D597").is_ok()); + assert!(parse_dat_address( + "dat://c7638882870abd4044d6467b0738f15e3a36f57c3a7f7f3417fd7e4e0841d597").is_ok()); + + assert!(parse_dat_address( + "c7638882870ab").is_err()); + assert!(parse_dat_address( + "g7638882870abd4044d6467b0738f15e3a36f57c3a7f7f3417fd7e4e0841d597").is_err()); + assert!(parse_dat_address( + "dat://c7638882870abd4044d6467b0738f15e3a36f57c3a7f7f3417fd7e4e0841d5970").is_err()); + assert!(parse_dat_address( + "dat://c7638882870abd4044d6467b0738f15e3a36f57c3a7f7f3417fd7e4e0841d59").is_err()); +} -- cgit v1.2.3