mirror of https://github.com/vinc/moros.git
226 lines
8.1 KiB
Rust
226 lines
8.1 KiB
Rust
use crate::{sys, usr};
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use crate::api::console::Style;
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use crate::api::random;
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use crate::api::syscall;
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use alloc::string::{String, ToString};
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use alloc::vec;
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use core::str::{self, FromStr};
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use smoltcp::socket::{TcpSocket, TcpSocketBuffer};
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use smoltcp::time::Instant;
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use smoltcp::wire::IpAddress;
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#[derive(Debug)]
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struct URL {
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pub host: String,
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pub port: u16,
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pub path: String,
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}
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impl URL {
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pub fn parse(url: &str) -> Option<Self> {
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if !url.starts_with("http://") {
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return None;
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}
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let url = &url[7..];
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let (server, path) = match url.find('/') {
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Some(i) => url.split_at(i),
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None => (url, "/"),
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};
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let (host, port) = match server.find(':') {
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Some(i) => server.split_at(i),
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None => (server, ":80"),
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};
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let port = &port[1..];
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Some(Self {
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host: host.into(),
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port: port.parse().unwrap_or(80),
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path: path.into(),
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})
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}
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}
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pub fn main(args: &[&str]) -> usr::shell::ExitCode {
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let csi_verbose = Style::color("LightBlue");
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let csi_reset = Style::reset();
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// Parse command line options
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let mut is_verbose = false;
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let mut host = "";
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let mut path = "";
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let n = args.len();
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for i in 1..n {
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match args[i] {
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"-h" | "--help" => {
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return help();
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}
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"--verbose" => {
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is_verbose = true;
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}
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_ if args[i].starts_with("--") => {
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error!("Invalid option '{}'", args[i]);
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return usr::shell::ExitCode::CommandError;
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}
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_ if host.is_empty() => {
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host = args[i]
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}
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_ if path.is_empty() => {
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path = args[i]
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}
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_ => {
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error!("Too many arguments");
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return usr::shell::ExitCode::CommandError;
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}
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}
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}
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if host.is_empty() && path.is_empty() {
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error!("Missing URL");
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return usr::shell::ExitCode::CommandError;
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} else if path.is_empty() {
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if let Some(i) = args[1].find('/') {
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(host, path) = host.split_at(i);
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} else {
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path = "/"
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}
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}
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let url = "http://".to_string() + host + path;
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let url = URL::parse(&url).expect("invalid URL format");
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let address = if url.host.ends_with(char::is_numeric) {
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IpAddress::from_str(&url.host).expect("invalid address format")
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} else {
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match usr::host::resolve(&url.host) {
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Ok(ip_addr) => {
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ip_addr
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}
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Err(e) => {
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error!("Could not resolve host: {:?}", e);
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return usr::shell::ExitCode::CommandError;
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}
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}
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};
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let tcp_rx_buffer = TcpSocketBuffer::new(vec![0; 1024]);
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let tcp_tx_buffer = TcpSocketBuffer::new(vec![0; 1024]);
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let tcp_socket = TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
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enum State { Connect, Request, Response }
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let mut state = State::Connect;
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if let Some(ref mut iface) = *sys::net::IFACE.lock() {
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let tcp_handle = iface.add_socket(tcp_socket);
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let mut is_header = true;
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let timeout = 5.0;
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let started = syscall::realtime();
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loop {
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if syscall::realtime() - started > timeout {
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error!("Timeout reached");
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iface.remove_socket(tcp_handle);
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return usr::shell::ExitCode::CommandError;
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}
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if sys::console::end_of_text() || sys::console::end_of_transmission() {
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eprintln!();
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iface.remove_socket(tcp_handle);
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return usr::shell::ExitCode::CommandError;
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}
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let timestamp = Instant::from_micros((syscall::realtime() * 1000000.0) as i64);
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if let Err(e) = iface.poll(timestamp) {
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error!("Network Error: {}", e);
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}
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let (socket, cx) = iface.get_socket_and_context::<TcpSocket>(tcp_handle);
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state = match state {
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State::Connect if !socket.is_active() => {
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let local_port = 49152 + random::get_u16() % 16384;
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if is_verbose {
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print!("{}", csi_verbose);
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println!("* Connecting to {}:{}", address, url.port);
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print!("{}", csi_reset);
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}
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if socket.connect(cx, (address, url.port), local_port).is_err() {
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error!("Could not connect to {}:{}", address, url.port);
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iface.remove_socket(tcp_handle);
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return usr::shell::ExitCode::CommandError;
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}
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State::Request
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}
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State::Request if socket.may_send() => {
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let http_get = "GET ".to_string() + &url.path + " HTTP/1.1\r\n";
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let http_host = "Host: ".to_string() + &url.host + "\r\n";
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let http_ua = "User-Agent: MOROS/".to_string() + env!("CARGO_PKG_VERSION") + "\r\n";
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let http_connection = "Connection: close\r\n".to_string();
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if is_verbose {
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print!("{}", csi_verbose);
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print!("> {}", http_get);
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print!("> {}", http_host);
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print!("> {}", http_ua);
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print!("> {}", http_connection);
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println!(">");
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print!("{}", csi_reset);
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}
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socket.send_slice(http_get.as_ref()).expect("cannot send");
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socket.send_slice(http_host.as_ref()).expect("cannot send");
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socket.send_slice(http_ua.as_ref()).expect("cannot send");
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socket.send_slice(http_connection.as_ref()).expect("cannot send");
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socket.send_slice(b"\r\n").expect("cannot send");
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State::Response
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}
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State::Response if socket.can_recv() => {
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socket.recv(|data| {
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let contents = String::from_utf8_lossy(data);
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let mut header = vec![];
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let mut body = vec![];
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for line in contents.lines() {
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if is_header {
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if line.is_empty() {
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is_header = false;
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}
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header.push(line);
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} else {
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body.push(line);
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}
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}
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if is_verbose {
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print!("{}", csi_verbose);
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for line in header {
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println!("< {}", line);
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}
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print!("{}", csi_reset);
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}
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print!("{}", body.join("\n"));
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(data.len(), ())
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}).unwrap();
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State::Response
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}
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State::Response if !socket.may_recv() => {
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break;
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}
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_ => state
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};
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if let Some(wait_duration) = iface.poll_delay(timestamp) {
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syscall::sleep((wait_duration.total_micros() as f64) / 1000000.0);
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}
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}
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iface.remove_socket(tcp_handle);
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println!();
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usr::shell::ExitCode::CommandSuccessful
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} else {
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usr::shell::ExitCode::CommandError
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}
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}
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fn help() -> usr::shell::ExitCode {
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let csi_option = Style::color("LightCyan");
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let csi_title = Style::color("Yellow");
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let csi_reset = Style::reset();
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println!("{}Usage:{} http {}<options> <url>{1}", csi_title, csi_reset, csi_option);
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println!();
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println!("{}Options:{}", csi_title, csi_reset);
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println!(" {0}-v{1}, {0}--verbose{1} Increase verbosity", csi_option, csi_reset);
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usr::shell::ExitCode::CommandSuccessful
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}
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