Implement SQL connection

This commit is contained in:
Valentin Tolmer 2021-03-07 16:13:50 +01:00
parent c63c7105aa
commit dc6e8c8808
4 changed files with 118 additions and 41 deletions

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@ -17,6 +17,7 @@ http = "*"
ldap3_server = "*"
log = "*"
serde = "*"
sqlx = { version = "0.5", features = [ "runtime-actix-native-tls", "sqlite", "macros" ] }
thiserror = "*"
tokio = { version = "1.2.0", features = ["full"] }
tokio-util = "0.6.3"

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@ -2,18 +2,29 @@ use crate::infra::configuration::Configuration;
use actix_rt::net::TcpStream;
use actix_server::ServerBuilder;
use actix_service::{fn_service, pipeline_factory};
use anyhow::bail;
use anyhow::Result;
use futures_util::future::ok;
use log::*;
use std::rc::Rc;
use tokio::net::tcp::WriteHalf;
use tokio_util::codec::{FramedRead, FramedWrite};
use ldap3_server::simple::*;
use ldap3_server::LdapCodec;
pub struct LdapSession {
pub struct LdapSession<DB>
where
DB: sqlx::Database,
{
dn: String,
sql_pool: Rc<sqlx::Pool<DB>>,
}
impl LdapSession {
impl<DB> LdapSession<DB>
where
DB: sqlx::Database,
{
pub fn do_bind(&mut self, sbr: &SimpleBindRequest) -> LdapMsg {
if sbr.dn == "cn=Directory Manager" && sbr.pw == "password" {
self.dn = sbr.dn.to_string();
@ -61,51 +72,103 @@ impl LdapSession {
pub fn do_whoami(&mut self, wr: &WhoamiRequest) -> LdapMsg {
wr.gen_success(format!("dn: {}", self.dn).as_str())
}
pub fn handle_ldap_message(&mut self, server_op: ServerOps) -> Option<Vec<LdapMsg>>
where
DB: sqlx::Database,
{
let result = match server_op {
ServerOps::SimpleBind(sbr) => vec![self.do_bind(&sbr)],
ServerOps::Search(sr) => self.do_search(&sr),
ServerOps::Unbind(_) => {
// No need to notify on unbind (per rfc4511)
return None;
}
ServerOps::Whoami(wr) => vec![self.do_whoami(&wr)],
};
Some(result)
}
}
pub fn build_ldap_server(
config: &Configuration,
server_builder: ServerBuilder,
) -> Result<ServerBuilder> {
async fn handle_incoming_message<DB>(
msg: Result<LdapMsg, std::io::Error>,
resp: &mut FramedWrite<WriteHalf<'_>, LdapCodec>,
session: &mut LdapSession<DB>,
) -> Result<bool>
where
DB: sqlx::Database,
{
use futures_util::SinkExt;
use futures_util::StreamExt;
use std::convert::TryFrom;
use tokio_util::codec::{FramedRead, FramedWrite};
let server_op = match msg
.map_err(|_e| ())
.and_then(|msg| ServerOps::try_from(msg))
{
Ok(a_value) => a_value,
Err(an_error) => {
let _err = resp
.send(DisconnectionNotice::gen(
LdapResultCode::Other,
"Internal Server Error",
))
.await;
let _err = resp.flush().await;
bail!("Internal server error: {:?}", an_error);
}
};
match session.handle_ldap_message(server_op) {
None => return Ok(false),
Some(result) => {
for rmsg in result.into_iter() {
if let Err(e) = resp.send(rmsg).await {
bail!("Error while sending a response: {:?}", e);
}
}
if let Err(e) = resp.flush().await {
bail!("Error while flushing responses: {:?}", e);
}
}
}
Ok(true)
}
pub fn build_ldap_server<DB>(
config: &Configuration,
sql_pool: sqlx::Pool<DB>,
server_builder: ServerBuilder,
) -> Result<ServerBuilder>
where
DB: sqlx::Database,
{
use futures_util::StreamExt;
Ok(
server_builder.bind("ldap", ("0.0.0.0", config.ldap_port), move || {
pipeline_factory(fn_service(move |mut stream: TcpStream| async {
// Configure the codec etc.
let (r, w) = stream.split();
let mut reqs = FramedRead::new(r, LdapCodec);
let mut resp = FramedWrite::new(w, LdapCodec);
let sql_pool = std::rc::Rc::new(sql_pool.clone());
pipeline_factory(fn_service(move |mut stream: TcpStream| {
let sql_pool = sql_pool.clone();
async move {
// Configure the codec etc.
let (r, w) = stream.split();
let mut requests = FramedRead::new(r, LdapCodec);
let mut resp = FramedWrite::new(w, LdapCodec);
let mut session = LdapSession {
dn: "Anonymous".to_string(),
};
while let Some(msg) = reqs.next().await {
let server_op = match msg
.map_err(|_e| ())
.and_then(|msg| ServerOps::try_from(msg))
{
Ok(a_value) => a_value,
Err(an_error) => {
let _err = resp
.send(DisconnectionNotice::gen(
LdapResultCode::Other,
"Internal Server Error",
))
.await;
let _err = resp.flush().await;
return Err(format!("Internal server error: {:?}", an_error));
}
let mut session = LdapSession {
dn: "Anonymous".to_string(),
sql_pool,
};
}
Ok(stream)
while let Some(msg) = requests.next().await {
if !handle_incoming_message(msg, &mut resp, &mut session).await? {
break;
}
}
Ok(stream)
}
}))
.map_err(|err| error!("Service Error: {:?}", err))
.map_err(|err: anyhow::Error| error!("Service Error: {:?}", err))
// catch
.and_then(move |_| {
// finally

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@ -7,10 +7,14 @@ use futures_util::future::ok;
use log::*;
use std::sync::Arc;
pub fn build_tcp_server(
pub fn build_tcp_server<DB>(
config: &Configuration,
sql_pool: sqlx::Pool<DB>,
server_builder: ServerBuilder,
) -> Result<ServerBuilder> {
) -> Result<ServerBuilder>
where
DB: sqlx::Database,
{
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering;
use tokio::io::AsyncReadExt;

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@ -2,13 +2,22 @@ use crate::infra::configuration::Configuration;
use anyhow::Result;
use futures_util::TryFutureExt;
use log::*;
use sqlx::sqlite::{SqliteConnectOptions, SqlitePoolOptions};
use std::str::FromStr;
mod infra;
async fn run_server(config: Configuration) -> Result<()> {
let server_builder =
infra::ldap_server::build_ldap_server(&config, actix_server::Server::build())?;
let server_builder = infra::tcp_server::build_tcp_server(&config, server_builder)?;
let sql_pool = SqlitePoolOptions::new()
.max_connections(5)
.connect_with(SqliteConnectOptions::from_str("sqlite://users.db")?.create_if_missing(true))
.await?;
let server_builder = infra::ldap_server::build_ldap_server(
&config,
sql_pool.clone(),
actix_server::Server::build(),
)?;
let server_builder = infra::tcp_server::build_tcp_server(&config, sql_pool, server_builder)?;
server_builder.workers(1).run().await?;
Ok(())
}