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melib/nntp: add AUTH support

memfd
Manos Pitsidianakis 2020-08-02 00:44:45 +03:00
parent ce45cf5f17
commit 1bdecd62c7
Signed by: Manos Pitsidianakis
GPG Key ID: 73627C2F690DF710
3 changed files with 225 additions and 88 deletions
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86
melib/src/backends/nntp.rs
View File

@ -36,7 +36,7 @@ use crate::async_workers::{Async, WorkContext};
use crate::backends::*;
use crate::conf::AccountSettings;
use crate::email::*;
use crate::error::{MeliError, Result};
use crate::error::{MeliError, Result, ResultIntoMeliError};
use futures::lock::Mutex as FutureMutex;
use futures::stream::Stream;
use std::collections::{hash_map::DefaultHasher, BTreeMap};
@ -59,10 +59,11 @@ pub static SUPPORTED_CAPABILITIES: &[&str] = &[
pub struct NntpServerConf {
pub server_hostname: String,
pub server_username: String,
//pub server_password: String,
pub server_password: String,
pub server_port: u16,
pub use_starttls: bool,
pub use_tls: bool,
pub require_auth: bool,
pub danger_accept_invalid_certs: bool,
pub extension_use: NntpExtensionUse,
}
@ -404,14 +405,24 @@ impl NntpType {
};
*/
let server_port = get_conf_val!(s["server_port"], 119)?;
let use_tls = get_conf_val!(s["use_tls"], true)?;
let use_starttls = use_tls && get_conf_val!(s["use_starttls"], !(server_port == 993))?;
let use_tls = get_conf_val!(s["use_tls"], server_port == 563)?;
let use_starttls = use_tls && get_conf_val!(s["use_starttls"], !(server_port == 563))?;
let danger_accept_invalid_certs: bool =
get_conf_val!(s["danger_accept_invalid_certs"], false)?;
let require_auth = get_conf_val!(s["require_auth"], true)?;
let server_conf = NntpServerConf {
server_hostname: server_hostname.to_string(),
server_username: String::new(),
//server_password,
server_username: if require_auth {
get_conf_val!(s["server_username"])?.to_string()
} else {
get_conf_val!(s["server_username"], String::new())?
},
server_password: if require_auth {
get_conf_val!(s["server_password"])?.to_string()
} else {
get_conf_val!(s["server_password"], String::new())?
},
require_auth,
server_port,
use_tls,
use_starttls,
@ -451,7 +462,7 @@ impl NntpType {
let uid_store: Arc<UIDStore> = Arc::new(UIDStore {
account_hash,
account_name,
offline_cache: get_conf_val!(s["X_header_caching"], false)?,
offline_cache: false, //get_conf_val!(s["X_header_caching"], false)?,
mailboxes: Arc::new(FutureMutex::new(mailboxes)),
..UIDStore::default()
});
@ -482,13 +493,14 @@ impl NntpType {
})
};
conn.send_command(command.as_bytes()).await?;
conn.read_response(&mut res, true).await?;
if !res.starts_with("215 ") {
return Err(MeliError::new(format!(
"Could not get newsgroups {}: expected LIST ACTIVE response but got: {}",
&conn.uid_store.account_name, res
)));
}
conn.read_response(&mut res, true, &["215 "])
.await
.chain_err_summary(|| {
format!(
"Could not get newsgroups {}: expected LIST ACTIVE response but got: {}",
&conn.uid_store.account_name, res
)
})?;
debug!(&res);
let mut mailboxes_lck = conn.uid_store.mailboxes.lock().await;
for l in res.split_rn().skip(1) {
@ -517,14 +529,23 @@ impl NntpType {
)));
}
let server_port = get_conf_val!(s["server_port"], 119)?;
let use_tls = get_conf_val!(s["use_tls"], true)?;
let use_starttls = get_conf_val!(s["use_starttls"], !(server_port == 993))?;
let use_tls = get_conf_val!(s["use_tls"], server_port == 563)?;
let use_starttls = get_conf_val!(s["use_starttls"], !(server_port == 563))?;
if !use_tls && use_starttls {
return Err(MeliError::new(format!(
"Configuration error ({}): incompatible use_tls and use_starttls values: use_tls = false, use_starttls = true",
s.name.as_str(),
)));
}
#[cfg(feature = "deflate_compression")]
get_conf_val!(s["use_deflate"], true)?;
#[cfg(not(feature = "deflate_compression"))]
if s.extra.contains_key("use_deflate") {
return Err(MeliError::new(format!(
"Configuration error ({}): setting `use_deflate` is set but this version of meli isn't compiled with DEFLATE support.",
s.name.as_str(),
)));
}
get_conf_val!(s["danger_accept_invalid_certs"], false)?;
Ok(())
}
@ -552,13 +573,14 @@ async fn fetch_envs(
.to_string();
conn.send_command(format!("GROUP {}", path).as_bytes())
.await?;
conn.read_response(&mut res, false).await?;
if !res.starts_with("211 ") {
return Err(MeliError::new(format!(
"{} Could not select newsgroup {}: expected GROUP response but got: {}",
&uid_store.account_name, path, res
)));
}
conn.read_response(&mut res, false, &["211 "])
.await
.chain_err_summary(|| {
format!(
"{} Could not select newsgroup {}: expected GROUP response but got: {}",
&uid_store.account_name, path, res
)
})?;
/*
* Parameters
group Name of newsgroup
@ -578,22 +600,22 @@ async fn fetch_envs(
let high = usize::from_str(&s[3]).unwrap_or(0);
drop(s);
conn.send_command(format!("OVER {}-{}", high.saturating_sub(250), high).as_bytes())
conn.send_command(format!("OVER {}-{}", high.saturating_sub(100), high).as_bytes())
.await?;
conn.read_response(&mut res, true).await?;
if !res.starts_with("224 ") {
return Err(MeliError::new(format!(
"{} Could not select newsgroup {}: expected OVER response but got: {}",
&uid_store.account_name, path, res
)));
}
conn.read_response(&mut res, true, &["224 "])
.await
.chain_err_summary(|| {
format!(
"{} Could not select newsgroup {}: expected OVER response but got: {}",
&uid_store.account_name, path, res
)
})?;
let mut ret = Vec::with_capacity(total);
//hash_index: Arc<Mutex<HashMap<EnvelopeHash, (UID, MailboxHash)>>>,
//uid_index: Arc<Mutex<HashMap<(MailboxHash, UID), EnvelopeHash>>>,
let mut hash_index_lck = uid_store.hash_index.lock().unwrap();
let mut uid_index_lck = uid_store.uid_index.lock().unwrap();
for l in res.split_rn().skip(1) {
debug!(&l);
let (_, (num, env)) = debug!(protocol_parser::over_article(&l))?;
hash_index_lck.insert(env.hash(), (num, mailbox_hash));
uid_index_lck.insert((mailbox_hash, num), env.hash());

223
melib/src/backends/nntp/connection.rs
View File

@ -103,27 +103,6 @@ impl NntpStream {
current_mailbox: MailboxSelection::None,
};
ret.read_response(&mut res, false).await?;
ret.send_command(b"CAPABILITIES").await?;
ret.read_response(&mut res, true).await?;
if !res.starts_with("101 ") {
return Err(MeliError::new(format!(
"Could not connect to {}: expected CAPABILITIES response but got:{}",
&server_conf.server_hostname, res
)));
}
let capabilities: Vec<&str> = res.lines().skip(1).collect();
if !capabilities
.iter()
.any(|cap| cap.eq_ignore_ascii_case("VERSION 2"))
{
return Err(MeliError::new(format!(
"Could not connect to {}: server is not NNTP compliant",
&server_conf.server_hostname
)));
}
if server_conf.use_tls {
let mut connector = TlsConnector::builder();
if server_conf.danger_accept_invalid_certs {
@ -134,6 +113,37 @@ impl NntpStream {
.chain_err_kind(crate::error::ErrorKind::Network)?;
if server_conf.use_starttls {
ret.read_response(&mut res, false, &["200 ", "201 "])
.await?;
ret.send_command(b"CAPABILITIES").await?;
ret.read_response(&mut res, true, command_to_replycodes("CAPABILITIES"))
.await?;
if !res.starts_with("101 ") {
return Err(MeliError::new(format!(
"Could not connect to {}: expected CAPABILITIES response but got:{}",
&server_conf.server_hostname, res
)));
}
let capabilities: Vec<&str> = res.lines().skip(1).collect();
if !capabilities
.iter()
.any(|cap| cap.eq_ignore_ascii_case("VERSION 2"))
{
return Err(MeliError::new(format!(
"Could not connect to {}: server is not NNTP compliant",
&server_conf.server_hostname
)));
}
if !capabilities
.iter()
.any(|cap| cap.eq_ignore_ascii_case("STARTTLS"))
{
return Err(MeliError::new(format!(
"Could not connect to {}: server does not support STARTTLS",
&server_conf.server_hostname
)));
}
ret.stream
.write_all(b"STARTTLS\r\n")
.await
@ -142,7 +152,8 @@ impl NntpStream {
.flush()
.await
.chain_err_kind(crate::error::ErrorKind::Network)?;
ret.read_response(&mut res, false).await?;
ret.read_response(&mut res, false, command_to_replycodes("STARTTLS"))
.await?;
if !res.starts_with("382 ") {
return Err(MeliError::new(format!(
"Could not connect to {}: could not begin TLS negotiation, got: {}",
@ -192,8 +203,11 @@ impl NntpStream {
//)
//.await?;
ret.read_response(&mut res, false, &["200 ", "201 "])
.await?;
ret.send_command(b"CAPABILITIES").await?;
ret.read_response(&mut res, true).await?;
ret.read_response(&mut res, true, command_to_replycodes("CAPABILITIES"))
.await?;
if !res.starts_with("101 ") {
return Err(MeliError::new(format!(
"Could not connect to {}: expected CAPABILITIES response but got:{}",
@ -201,46 +215,92 @@ impl NntpStream {
)));
}
let capabilities: HashSet<String> = res.lines().skip(1).map(|l| l.to_string()).collect();
#[cfg(feature = "deflate_compression")]
if !capabilities
.iter()
.any(|cap| cap.eq_ignore_ascii_case("VERSION 2"))
{
return Err(MeliError::new(format!(
"Could not connect to {}: server is not NNTP compliant",
&server_conf.server_hostname
)));
}
if server_conf.require_auth {
if capabilities.iter().any(|c| c.starts_with("AUTHINFO USER")) {
ret.send_command(
format!("AUTHINFO USER {}", server_conf.server_username).as_bytes(),
)
.await?;
ret.read_response(&mut res, false, command_to_replycodes("AUTHINFO USER"))
.await
.chain_err_summary(|| format!("Authentication state error: {}", res))
.chain_err_kind(ErrorKind::Authentication)?;
if res.starts_with("381 ") {
ret.send_command(
format!("AUTHINFO PASS {}", server_conf.server_password).as_bytes(),
)
.await?;
ret.read_response(&mut res, false, command_to_replycodes("AUTHINFO PASS"))
.await
.chain_err_summary(|| format!("Authentication state error: {}", res))
.chain_err_kind(ErrorKind::Authentication)?;
}
} else {
return Err(MeliError::new(format!(
"Could not connect: no supported auth mechanisms in server capabilities: {:?}",
capabilities
))
.set_err_kind(ErrorKind::Authentication));
}
}
#[cfg(feature = "deflate_compression")]
if capabilities.contains("COMPRESS DEFLATE") && ret.extension_use.deflate {
ret.send_command(b"COMPRESS DEFLATE").await?;
ret.read_response(&mut res, false).await?;
if !res.starts_with("206 ") {
crate::log(
ret.read_response(&mut res, false, command_to_replycodes("COMPRESS DEFLATE"))
.await
.chain_err_summary(|| {
format!(
"Could not use COMPRESS=DEFLATE in account `{}`: server replied with `{}`",
"Could not use COMPRESS DEFLATE in account `{}`: server replied with `{}`",
server_conf.server_hostname, res
),
crate::LoggingLevel::WARN,
);
} else {
let NntpStream {
stream,
)
})?;
let NntpStream {
stream,
extension_use,
current_mailbox,
} = ret;
let stream = stream.into_inner()?;
return Ok((
capabilities,
NntpStream {
stream: AsyncWrapper::new(stream.deflate())?,
extension_use,
current_mailbox,
} = ret;
let stream = stream.into_inner()?;
return Ok((
capabilities,
NntpStream {
stream: AsyncWrapper::new(stream.deflate())?,
extension_use,
current_mailbox,
},
));
}
},
));
}
Ok((capabilities, ret))
}
pub async fn read_response(&mut self, ret: &mut String, is_multiline: bool) -> Result<()> {
self.read_lines(ret, is_multiline).await?;
pub async fn read_response(
&mut self,
ret: &mut String,
is_multiline: bool,
expected_reply_code: &[&str],
) -> Result<()> {
self.read_lines(ret, is_multiline, expected_reply_code)
.await?;
Ok(())
}
pub async fn read_lines(&mut self, ret: &mut String, is_multiline: bool) -> Result<()> {
pub async fn read_lines(
&mut self,
ret: &mut String,
is_multiline: bool,
expected_reply_code: &[&str],
) -> Result<()> {
let mut buf: Vec<u8> = vec![0; Connection::IO_BUF_SIZE];
ret.clear();
let mut last_line_idx: usize = 0;
@ -249,6 +309,24 @@ impl NntpStream {
Ok(0) => break,
Ok(b) => {
ret.push_str(unsafe { std::str::from_utf8_unchecked(&buf[0..b]) });
if ret.len() > 4 {
if ret.starts_with("205 ") {
return Err(MeliError::new(format!("Disconnected: {}", ret)));
} else if ret.starts_with("501 ") || ret.starts_with("500 ") {
return Err(MeliError::new(format!("Syntax error: {}", ret)));
} else if ret.starts_with("403 ") {
return Err(MeliError::new(format!("Internal error: {}", ret)));
} else if ret.starts_with("502 ")
|| ret.starts_with("480 ")
|| ret.starts_with("483 ")
|| ret.starts_with("401 ")
{
return Err(MeliError::new(format!("Connection state error: {}", ret))
.set_err_kind(ErrorKind::Authentication));
} else if !expected_reply_code.iter().any(|r| ret.starts_with(r)) {
return Err(MeliError::new(format!("Unexpected reply code: {}", ret)));
}
}
if let Some(mut pos) = ret[last_line_idx..].rfind("\r\n") {
if !is_multiline {
break;
@ -256,9 +334,6 @@ impl NntpStream {
ret.replace_range(pos + "\r\n".len()..pos + "\r\n.\r\n".len(), "");
break;
}
if ret[last_line_idx..].starts_with("205 ") {
return Err(MeliError::new(format!("Disconnected: {}", ret)));
}
if let Some(prev_line) =
ret[last_line_idx..pos + last_line_idx].rfind("\r\n")
{
@ -339,15 +414,27 @@ impl NntpConnection {
&'a mut self,
ret: &'a mut String,
is_multiline: bool,
expected_reply_code: &'static [&str],
) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'a>> {
Box::pin(async move {
ret.clear();
self.stream.as_mut()?.read_response(ret, is_multiline).await
self.stream
.as_mut()?
.read_response(ret, is_multiline, expected_reply_code)
.await
})
}
pub async fn read_lines(&mut self, ret: &mut String, is_multiline: bool) -> Result<()> {
self.stream.as_mut()?.read_lines(ret, is_multiline).await?;
pub async fn read_lines(
&mut self,
ret: &mut String,
is_multiline: bool,
expected_reply_code: &[&str],
) -> Result<()> {
self.stream
.as_mut()?
.read_lines(ret, is_multiline, expected_reply_code)
.await?;
Ok(())
}
@ -377,3 +464,31 @@ impl NntpConnection {
}
}
}
fn command_to_replycodes(c: &str) -> &'static [&'static str] {
if c.starts_with("OVER") {
&["224 "]
} else if c.starts_with("LIST") {
&["215 "]
} else if c.starts_with("STARTTLS") {
&["382 "]
} else if c.starts_with("GROUP") {
&["211 "]
} else if c.starts_with("CAPABILITIES") {
&["101 "]
} else if c.starts_with("ARTICLE") {
&["220 "]
} else if c.starts_with("DATE") {
&["111 "]
} else if c.starts_with("NEWNEWS") {
&["230 "]
} else if c.starts_with("AUTHINFO USER") {
&["281 ", "381 "]
} else if c.starts_with("AUTHINFO PASS") {
&["281 "]
} else if c.starts_with("COMPRESS DEFLATE") {
&["206 "]
} else {
&[]
}
}

4
melib/src/backends/nntp/operations.rs
View File

@ -65,7 +65,7 @@ impl BackendOp for NntpOp {
.to_string();
conn.send_command(format!("GROUP {}", path).as_bytes())
.await?;
conn.read_response(&mut res, false).await?;
conn.read_response(&mut res, false, &["211 "]).await?;
if !res.starts_with("211 ") {
return Err(MeliError::new(format!(
"{} Could not select newsgroup {}: expected GROUP response but got: {}",
@ -74,7 +74,7 @@ impl BackendOp for NntpOp {
}
conn.send_command(format!("ARTICLE {}", uid).as_bytes())
.await?;
conn.read_response(&mut res, true).await?;
conn.read_response(&mut res, true, &["220 "]).await?;
if !res.starts_with("220 ") {
return Err(MeliError::new(format!(
"{} Could not select article {}: expected ARTICLE response but got: {}",