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use crate::{bundle, dtntime, eid};
use core::num::ParseIntError;
use rand::Rng;
use std::error::Error;
use std::time::{SystemTime, UNIX_EPOCH};
#[cfg(not(target_arch = "wasm32"))]
pub fn unix_timestamp() -> u64 {
SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Time went backwards!!")
.as_secs()
}
#[cfg(target_arch = "wasm32")]
pub fn unix_timestamp() -> u64 {
(stdweb::web::Date::now() / 1000.0) as u64
}
#[cfg(not(target_arch = "wasm32"))]
pub fn ts_ms() -> u128 {
SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("Time went backwards!!")
.as_millis()
}
#[cfg(target_arch = "wasm32")]
pub fn ts_ms() -> u128 {
(stdweb::web::Date::now()) as u128
}
pub fn hexify(buf: &[u8]) -> String {
let mut hexstr = String::new();
for &b in buf {
hexstr.push_str(&format!("{:02x?}", b));
}
hexstr
}
pub fn unhexify(s: &str) -> Result<Vec<u8>, ParseIntError> {
(0..s.len())
.step_by(2)
.map(|i| u8::from_str_radix(&s[i..i + 2], 16))
.collect()
}
pub fn rnd_bundle(now: dtntime::CreationTimestamp) -> bundle::Bundle {
let mut rng = rand::thread_rng();
let dst_string = format!("node{}/inbox", rng.gen_range(1, 4));
let src_string = format!("node{}/inbox", rng.gen_range(1, 4));
let dst = eid::EndpointID::with_dtn(&dst_string);
let src = eid::EndpointID::with_dtn(&src_string);
let mut b = bundle::new_std_payload_bundle(src, dst, b"ABC".to_vec());
b.primary.creation_timestamp = now;
b
}
pub struct Url {
scheme: String,
host: String,
path: String,
query: String,
}
impl Url {
pub fn parse(raw_url: &str) -> Result<Self, &'static str> {
let fields: Vec<&str> = raw_url.split("://").collect();
if fields.len() != 2 {
return Err("Error parsing url: scheme missing");
}
let scheme = String::from(fields[0]);
let blocks: Vec<&str> = fields[1].split('?').collect();
let mut query = String::new();
if blocks.len() > 2 {
return Err("Error parsing url: too many '?' in url");
} else if blocks.len() == 2 {
query = String::from(blocks[1]);
}
let uri: Vec<&str> = blocks[0].split('/').collect();
let mut path = String::new();
if uri.is_empty() {
return Err("Error parsing url: host missing");
} else {
}
let host = dbg!(String::from(uri[0]));
if uri.len() > 1 {
path = String::from("/") + &uri[1..].join("/");
}
Ok(Url {
scheme,
host,
path,
query,
})
}
pub fn path(&self) -> &str {
&self.path
}
pub fn scheme(&self) -> &str {
&self.scheme
}
pub fn host(&self) -> &str {
&self.host
}
pub fn query(&self) -> &str {
&self.query
}
}