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nom::character::streaming::{ + alpha1, digit1, line_ending, multispace0, multispace1, newline, none_of, not_line_ending, +}; +use nom::multi::many_m_n; +use nom::sequence::{delimited, preceded, separated_pair}; +use nom::{bytes::streaming::tag, IResult}; +use nom::{character, number}; +use sieverman::{Methods, ServerSettings}; +use std::error::Error; +pub fn do_nothing_parser(input: &str) -> IResult<&str, &str> { + Ok((input, "")) +} + +fn quoted(input: &str) -> IResult<&str, &str> { + preceded(multispace0, delimited(tag("\""), is_not("\n\""), tag("\"")))(input) +} + +fn key_value(input: &str) -> IResult<&str, (&str, &str)> { + // note that this is really creating a function, the parser for abc + // vvvvv + // which is then called here, returning an IResult<&str, &str> + // vvvvv + preceded(multispace0, separated_pair(quoted, multispace1, quoted))(input) +} + +fn parse_version(input: &str) -> IResult<&str, Vec> { + many_m_n( + 1, + 5, + alt(( + character::complete::i32, + preceded(character::complete::char('.'), character::complete::i32), + )), + )(input) +} + +fn parse_methods(input: &str) -> IResult<&str, Vec> { + let (rem, res) = many_m_n(1, 10, alt((alpha1, preceded(multispace1, alpha1))))(input)?; + let methods = res + .into_iter() + .map(|m| match m { + "PLAIN" => Methods::Plain, + "OAUTHBEARER" => Methods::OAuthbearer, + any => todo!("That method is not yet implemented: {}", any), + }) + .collect(); + Ok((rem, methods)) +} + +fn parse_extensions(input: &str) -> IResult<&str, Vec> { + let (rem, res) = many_m_n(1, 200, alt((is_not(" "), preceded(tag(" "), is_not(" ")))))(input)?; + let extensions = res.into_iter().map(|m| m.to_string()).collect(); + Ok((rem, extensions)) +} + +fn parse_server_config(input: &str) -> IResult<&str, ServerSettings> { + let (remain, (key, implementation)) = key_value(input)?; + info!("Implementation:# {}", implementation); + let (remain, (key, version)) = key_value(remain)?; + info!("{}", version); + let (_, version) = parse_version(version)?; + info!("Version:# {:?}", version); + let (remain, (key, sasl)) = key_value(remain)?; + info!("{}", sasl); + let (_, sasl) = parse_methods(sasl)?; + info!("SASL:# {:?}", sasl); + let (remain, (key, capabilities)) = key_value(remain)?; + info!("{}", capabilities); + let (_, capabilities) = parse_extensions(capabilities)?; + info!("Extensions:# {:?}", &capabilities); + let (remain, (key, notify)) = key_value(remain)?; + info!("{}", notify); + let (_, notify) = parse_extensions(remain)?; + info!("Notify:# {:?}", ¬ify); + let (remain, (key, max_redirects)) = key_value(remain)?; + info!("{}", max_redirects); + let (_, max_redirects) = character::complete::u32(max_redirects)?; + info!("Max Redirects:# {}", max_redirects); + + IResult::Ok(( + remain, + ServerSettings { + implementation: implementation.to_string(), + version, + sasl, + capabilities, + notify, + max_redirects, + }, + )) +} + +fn main() -> Result<(), Box> { + env_logger::init(); + let input = r#" +"IMPLEMENTATION" "Stalwart ManageSieve v0.4.2" +"VERSION" "1.0" +"SASL" "PLAIN OAUTHBEARER" +"SIEVE" "body comparator-elbonia comparator-i;ascii-casemap comparator-i;ascii-numeric comparator-i;octet convert copy date duplicate editheader enclose encoded-character enotify envelope envelope-deliverby envelope-dsn environment ereject extlists extracttext fcc fileinto foreverypart ihave imap4flags imapsieve include index mailbox mailboxid mboxmetadata mime redirect-deliverby redirect-dsn regex reject relational replace servermetadata spamtest spamtestplus special-use subaddress vacation vacation-seconds variables virustest" +"NOTIFY" "mailto" +"MAXREDIRECTS" "1" +"#; + let (remaining_input, output) = parse_server_config(input)?; + Ok(()) +} diff --git a/src/bin/sieverman.rs b/src/bin/sieverman.rs new file mode 100644 index 0000000..da74ffd --- /dev/null +++ b/src/bin/sieverman.rs @@ -0,0 +1,108 @@ +/// This is the simplest possible client using rustls that does something useful: +/// it accepts the default configuration, loads some root certs, and then connects +/// to google.com and issues a basic HTTP request. The response is printed to stdout. +/// +/// It makes use of rustls::Stream to treat the underlying TLS connection as a basic +/// bi-directional stream -- the underlying IO is performed transparently. +/// +/// Note that `unwrap()` is used to deal with networking errors; this is not something +/// that is sensible outside of example code. +use std::{os::unix::net::SocketAddr, sync::Arc}; + +use log::{info, trace}; +use std::net::ToSocketAddrs; +use tokio::{ + io::{self, split, AsyncReadExt, AsyncWriteExt, ReadHalf, WriteHalf}, + net::TcpStream, +}; +use tokio_rustls::{ + rustls::{ClientConfig, KeyLogFile, RootCertStore}, + TlsConnector, +}; + +async fn run() -> io::Result<()> { + let mut root_store = RootCertStore::empty(); + root_store.extend(webpki_roots::TLS_SERVER_ROOTS.iter().cloned()); + let mut config = ClientConfig::builder() + .with_root_certificates(root_store) + .with_no_client_auth(); + + // Allow using SSLKEYLOGFILE. + config.key_log = Arc::new(KeyLogFile::new()); + let connector = TlsConnector::from(Arc::new(config)); + let server_address = ("teilgedanken.de", 4190).to_socket_addrs()?.next().unwrap(); + let stream = TcpStream::connect(&server_address).await?; + let domain = pki_types::ServerName::try_from("teilgedanken.de").unwrap(); + let stream = connector.connect(domain, stream).await?; + let (mut reader, mut writer) = split(stream); + let mut dst = String::new(); + + reader + .read_to_string(&mut dst) + .await + .expect("Failed to read"); + info!("{:?}", &dst); + //writer.write(src) + /* { + let mut reader = BufReader::new(stream); + let mut read_all = String::new(); + /* loop { + trace!("reading max {} bytes", buffer.len()); + let bytes_read = rea.read(&mut buffer); + if let Ok(bytes_read) = bytes_read { + trace!("read {:?} bytes", bytes_read); + if bytes_read == buffer.len() { + let cur = String::from_utf8_lossy(&buffer[..bytes_read]); + read_all += &cur; + trace!("Received: \n{}", cur); + } else { + let cur = String::from_utf8_lossy(&buffer[..bytes_read]); + read_all += &cur; + trace!("Last: \n{}", cur); + break; + } + } else { + trace!("Error after reading continue"); + break; + } + } */ + reader.read_to_string(&mut read_all); + info!("Read all:\n{}", read_all); + } + let ciphersuite = stream.conn.negotiated_cipher_suite().unwrap(); + writeln!( + &mut std::io::stderr(), + "Current ciphersuite: {:?}", + ciphersuite.suite() + ) + .unwrap(); + /* stream + .clone() + .write_all(concat!("UNAUTHENTICATE\r\n",).as_bytes()) + .unwrap(); + loop { + let bytes_read = stream.read(&mut buffer); + if let Ok(bytes_read) = bytes_read { + if bytes_read > 0 { + trace!( + "Received: {:?}", + String::from_utf8_lossy(&buffer[..bytes_read]) + ); + } else { + break; + } + } else { + break; + } + } */ */ + Ok(()) +} +fn main() { + env_logger::init(); + tokio::runtime::Builder::new_current_thread() + .enable_io() + .build() + .unwrap() + .block_on(run()) + .expect("Failed to run or interrupted"); +} diff --git a/src/lib.rs b/src/lib.rs new file mode 100644 index 0000000..e687279 --- /dev/null +++ b/src/lib.rs @@ -0,0 +1,15 @@ +#[derive(Debug, Clone)] +pub struct ServerSettings { + pub implementation: String, + pub version: Vec, + pub sasl: Vec, + pub capabilities: Vec, + pub notify: Vec, + pub max_redirects: u32, +} + +#[derive(Debug, Clone, Copy)] +pub enum Methods { + Plain, + OAuthbearer, +} diff --git a/src/old2.rs b/src/old2.rs new file mode 100644 index 0000000..010723f --- /dev/null +++ b/src/old2.rs @@ -0,0 +1,54 @@ +use std::sync::Arc; + +use tokio::io::AsyncWriteExt; +use tokio::net::TcpStream; + +async fn connect(addr: &str) -> Result, Box> { + let mut root_cert_store = RootCertStore::empty(); + + for cert in rustls_native_certs::load_native_certs().expect("could not load platform certs") { + root_cert_store.add(cert) + } + let roots = webpki_roots::TLS_SERVER_ROOTS.iter().map(|ta| { + OwnedTrustAnchor::from_subject_spki_name_constraints( + ta.subject, + ta.subject_public_key_info, + ta.name_constraints, + ) + }); + root_cert_store.add_trust_anchors(roots); + let config = ClientConfig::builder() + .with_safe_defaults() + .with_root_certificates(root_cert_store) + .with_no_client_auth(); + let connector = TlsConnector::from(Arc::new(config)); + let dnsname = ServerName::try_from("www.rust-lang.org").unwrap(); + + let stream = TcpStream::connect(&addr).await?; + let mut stream = connector.connect(dnsname, stream).await?; + + Ok(tls_stream) +} + +async fn run() -> Result<(), Box> { + let tls_stream = connect("127.0.0.1:8080").await?; + + // Send a request to the server + let request = b"GET / HTTP/1.1\r\nHost: example.com\r\n\r\n"; + tls_stream.write_all(request)?; + + // Read the response from the server + let mut buf = [0; 1024]; + let n = tls_stream.read(&mut buf)?; + println!("{}", String::from_utf8_lossy(&buf[..n])); + + Ok(()) +} + +fn main() { + tokio::runtime::Builder::new() + .threaded_scheduler() + .build() + .unwrap() + .block_on(run()); +}