Feat/test smtp (#2806)

* add test-smtp server subcommand

* return error is password is None

* fix return type

* borrow variables

* convert args to &str

* Tuple needs to have the same types apparently

* Clone instead

* fix formatting

* improve test email body

* Update core/startos/src/system.rs

Co-authored-by: kn0wmad <39687477+kn0wmad@users.noreply.github.com>

* add tls connection

* remove commented code

* use aidens mail-send fork

---------

Co-authored-by: kn0wmad <39687477+kn0wmad@users.noreply.github.com>

core/startos/Cargo.toml

@@ -217,6 +217,9 @@ url = { version = "2.4.1", features = ["serde"] }
 urlencoding = "2.1.3"
 uuid = { version = "1.4.1", features = ["v4"] }
 zeroize = "1.6.0"
+mail-send = { git = "https://github.com/dr-bonez/mail-send.git", branch = "main" }
+rustls = "0.23.20"
+rustls-pki-types = { version = "1.10.1", features = ["alloc"]}
 
 [profile.test]
 opt-level = 3

core/startos/src/lib.rs

@@ -295,6 +295,13 @@ pub fn server<C: Context>() -> ParentHandler<C> {
                 .with_about("Set system smtp server and credentials")
                 .with_call_remote::<CliContext>()
         )
+        .subcommand(
+            "test-smtp", 
+            from_fn_async(system::test_system_smtp)
+                .no_display()
+                .with_about("Send test email using system smtp server and credentials")
+                .with_call_remote::<CliContext>()
+        )
         .subcommand(
             "clear-smtp",
             from_fn_async(system::clear_system_smtp)

core/startos/src/lxc/dev.rs

@@ -8,13 +8,11 @@ use rpc_toolkit::{
 use serde::{Deserialize, Serialize};
 use ts_rs::TS;
 
+use crate::context::{CliContext, RpcContext};
 use crate::lxc::{ContainerId, LxcConfig};
 use crate::prelude::*;
 use crate::rpc_continuations::Guid;
-use crate::{
-    context::{CliContext, RpcContext},
-    service::ServiceStats,
-};
+use crate::service::ServiceStats;
 
 pub fn lxc<C: Context>() -> ParentHandler<C> {
     ParentHandler::new()

core/startos/src/lxc/mod.rs

@@ -1,8 +1,9 @@
+use std::collections::BTreeSet;
+use std::ffi::OsString;
 use std::net::Ipv4Addr;
 use std::path::Path;
 use std::sync::{Arc, Weak};
 use std::time::Duration;
-use std::{collections::BTreeSet, ffi::OsString};
 
 use clap::builder::ValueParserFactory;
 use futures::{AsyncWriteExt, StreamExt};

core/startos/src/net/vhost.rs

@@ -35,8 +35,8 @@ use crate::net::acme::AcmeCertCache;
 use crate::net::static_server::server_error;
 use crate::prelude::*;
 use crate::util::io::BackTrackingIO;
-use crate::util::sync::SyncMutex;
 use crate::util::serde::MaybeUtf8String;
+use crate::util::sync::SyncMutex;
 
 #[derive(Debug)]
 struct SingleCertResolver(Arc<CertifiedKey>);
@@ -126,7 +126,11 @@ struct VHostServer {
 }
 impl VHostServer {
     #[instrument(skip_all)]
-    async fn new(port: u16, db: TypedPatchDb<Database>, crypto_provider: Arc<CryptoProvider>) -> Result<Self, Error> {
+    async fn new(
+        port: u16,
+        db: TypedPatchDb<Database>,
+        crypto_provider: Arc<CryptoProvider>,
+    ) -> Result<Self, Error> {
         let acme_tls_alpn_cache = Arc::new(SyncMutex::new(BTreeMap::<
             InternedString,
             watch::Receiver<Option<Arc<CertifiedKey>>>,
@@ -273,7 +277,7 @@ impl VHostServer {
                                                         let domains = [domain.to_string()];
                                                         let (send, recv) = watch::channel(None);
                                                         acme_tls_alpn_cache.mutate(|c| c.insert(domain.clone(), recv));
-                                                        let cert = 
+                                                        let cert =
                                                             async_acme::rustls_helper::order(
                                                                 |_, cert| {
                                                                     send.send_replace(Some(Arc::new(cert)));

core/startos/src/notifications.rs

@@ -13,11 +13,11 @@ use serde::{Deserialize, Serialize};
 use tracing::instrument;
 use ts_rs::TS;
 
+use crate::backup::BackupReport;
 use crate::context::{CliContext, RpcContext};
-use crate::db::model::DatabaseModel;
+use crate::db::model::{Database, DatabaseModel};
 use crate::prelude::*;
 use crate::util::serde::HandlerExtSerde;
-use crate::{backup::BackupReport, db::model::Database};
 
 // #[command(subcommands(list, delete, delete_before, create))]
 pub fn notification<C: Context>() -> ParentHandler<C> {

core/startos/src/service/effects/subcontainer/mod.rs

@@ -4,12 +4,11 @@ use imbl_value::InternedString;
 use models::ImageId;
 use tokio::process::Command;
 
+use crate::disk::mount::filesystem::overlayfs::OverlayGuard;
 use crate::rpc_continuations::Guid;
 use crate::service::effects::prelude::*;
+use crate::service::persistent_container::Subcontainer;
 use crate::util::Invoke;
-use crate::{
-    disk::mount::filesystem::overlayfs::OverlayGuard, service::persistent_container::Subcontainer,
-};
 
 #[cfg(feature = "container-runtime")]
 mod sync;

core/startos/src/system.rs

@@ -1,12 +1,18 @@
 use std::collections::BTreeSet;
 use std::fmt;
+use std::sync::Arc;
 
 use chrono::Utc;
 use clap::Parser;
 use color_eyre::eyre::eyre;
 use futures::FutureExt;
 use imbl::vector;
+use mail_send::mail_builder::MessageBuilder;
+use mail_send::SmtpClientBuilder;
 use rpc_toolkit::{from_fn_async, Context, Empty, HandlerExt, ParentHandler};
+use rustls::crypto::CryptoProvider;
+use rustls::RootCertStore;
+use rustls_pki_types::CertificateDer;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use tokio::process::Command;
 use tokio::sync::broadcast::Receiver;
@@ -871,6 +877,57 @@ pub async fn clear_system_smtp(ctx: RpcContext) -> Result<(), Error> {
     }
     Ok(())
 }
+pub async fn test_system_smtp(
+    _: RpcContext,
+    SmtpValue {
+        server,
+        port,
+        from,
+        login,
+        password,
+    }: SmtpValue,
+) -> Result<(), Error> {
+    use rustls_pki_types::pem::PemObject;
+
+    let Some(pass_val) = password else {
+        return Err(Error::new(
+            eyre!("mail-send requires a password"),
+            ErrorKind::InvalidRequest,
+        ));
+    };
+
+    let mut root_cert_store = RootCertStore::empty();
+    let pem = tokio::fs::read("/etc/ssl/certs/ca-certificates.crt").await?;
+    for cert in CertificateDer::pem_slice_iter(&pem) {
+        root_cert_store.add_parsable_certificates([cert.with_kind(ErrorKind::OpenSsl)?]);
+    }
+
+    let cfg = Arc::new(
+        rustls::ClientConfig::builder_with_provider(Arc::new(
+            rustls::crypto::ring::default_provider(),
+        ))
+        .with_safe_default_protocol_versions()?
+        .with_root_certificates(root_cert_store)
+        .with_no_client_auth(),
+    );
+    let client = SmtpClientBuilder::new_with_tls_config(server, port, cfg)
+        .implicit_tls(false)
+        .credentials((login.clone().split_once("@").unwrap().0.to_owned(), pass_val));
+
+    let message = MessageBuilder::new()
+        .from((from.clone(), login.clone()))
+        .to(vec![(from, login)])
+        .subject("StartOS Test Email")
+        .text_body("This is a test email sent from your StartOS Server");
+    client
+        .connect()
+        .await
+        .map_err(|e| Error::new(eyre!("mail-send connection error: {:?}", e), ErrorKind::Unknown))?
+        .send(message)
+        .await
+        .map_err(|e| Error::new(eyre!("mail-send send error: {:?}", e), ErrorKind::Unknown))?;
+    Ok(())
+}
 
 #[tokio::test]
 #[ignore]