feat: added crude email notifier

also default to console notifier enabled

Cargo.toml

@@ -25,11 +25,13 @@ axum = "0.6.20"
 sqlx = { version = "0.7.3", features = ["runtime-tokio", "tls-rustls", "any"] }
 # notification providers
 teloxide = { version = "0.12.2", features = ["macros"], optional = true }
+mail-send = { version = "0.4.6", optional = true }
+tokio-rustls = { version = "0.25.0", optional = true }
 
 [features]
 default = [
 	"mysql", "sqlite", "postgres",
-	"telegram",
+	"telegram", "email"
 ]
 # db drivers
 mysql = ["sqlx/mysql"]
@@ -37,3 +39,4 @@ sqlite = ["sqlx/sqlite"]
 postgres = ["sqlx/postgres"]
 # notifier providers
 telegram = ["dep:teloxide"]
+email = ["dep:mail-send", "dep:tokio-rustls"]

src/config.rs

@@ -17,20 +17,40 @@ pub struct ConfigOverrides {
 	pub date: bool,
 }
 
-#[derive(Debug, Clone, Default, serde::Serialize, serde::Deserialize)]
+#[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
 pub struct ConfigNotifiers {
-	pub providers: Vec<ConfigNotifierProvider>,
+	pub providers: Vec<NotifierProvider>,
+}
+
+// by default enable console notifier
+impl Default for ConfigNotifiers {
+	fn default() -> Self {
+		ConfigNotifiers {
+			providers: vec![NotifierProvider::Console],
+		}
+	}
 }
 
 #[derive(Debug, Clone, serde::Serialize, serde::Deserialize)]
-pub enum ConfigNotifierProvider {
-	ConsoleNotifier,
+pub enum NotifierProvider {
+	Console,
 
 	#[cfg(feature = "telegram")]
-	TelegramNotifier {
+	Telegram {
 		token: String,
 		chat_id: i64,
 	},
+
+	#[cfg(feature = "email")]
+	Email {
+		server: String,
+		port: u16,
+		username: String,
+		password: String,
+		from: String,
+		to: String,
+		subject: String,
+	},
 }
 
 fn _true() -> bool { true }

src/main.rs

@@ -2,7 +2,7 @@ use std::{net::SocketAddr, io::Write};
 use clap::{Parser, Subcommand};
 use config::ConfigOverrides;
 
-use crate::{storage::StorageProvider, routes::Context, notifications::console::ConsoleTracingNotifier, config::{Config, ConfigNotifierProvider}};
+use crate::{storage::StorageProvider, routes::Context, notifications::console::ConsoleTracingNotifier, config::{Config, NotifierProvider}};
 
 mod notifications;
 
@@ -64,9 +64,9 @@ async fn main() {
 	match args.action {
 		CliAction::Default => {
 			let mut cfg = Config::default();
-			cfg.notifiers.providers.push(ConfigNotifierProvider::ConsoleNotifier);
+			cfg.notifiers.providers.push(NotifierProvider::Console);
 			#[cfg(feature = "telegram")]
-			cfg.notifiers.providers.push(ConfigNotifierProvider::TelegramNotifier { token: "asd".into(), chat_id: -1 });
+			cfg.notifiers.providers.push(NotifierProvider::Telegram { token: "asd".into(), chat_id: -1 });
 			println!("{}", toml::to_string(&cfg).unwrap());
 		},
 		CliAction::Review { batch } => {
@@ -112,18 +112,31 @@ async fn main() {
 
 			for notifier in config.notifiers.providers {
 				match notifier {
-					ConfigNotifierProvider::ConsoleNotifier => {
+					NotifierProvider::Console => {
 						tracing::info!("registering console notifier");
 						state.register(Box::new(ConsoleTracingNotifier {}));
 					},
 
 					#[cfg(feature = "telegram")]
-					ConfigNotifierProvider::TelegramNotifier { token, chat_id } => {
+					NotifierProvider::Telegram { token, chat_id } => {
 						tracing::info!("registering telegram notifier for chat {}", chat_id);
 						state.register(Box::new(
 							notifications::telegram::TGNotifier::new(&token, chat_id)
 						));
 					},
+
+					#[cfg(feature = "email")]
+					NotifierProvider::Email {
+						server, port, username, password, from, to, subject
+					} => {
+						tracing::info!("registering email notifier to {} on server {}:{} ('{}')", to, server, port, subject);
+						state.register(Box::new(
+							notifications::email::EmailNotifier::new(
+								&server, port, &username, &password, &from, &to, &subject
+							).await
+						));
+
+					}
 				}
 			}
 

src/notifications/email.rs

@@ -0,0 +1,56 @@
+use mail_send::{SmtpClientBuilder, SmtpClient, mail_builder::MessageBuilder};
+use tokio::{sync::Mutex, net::TcpStream};
+use tokio_rustls::client::TlsStream;
+
+use crate::model::Page;
+
+use super::NotificationProcessor;
+
+pub struct EmailNotifier {
+	client: Mutex<SmtpClient<TlsStream<TcpStream>>>,
+	from: String,
+	to: String,
+	subject: String,
+}
+
+impl EmailNotifier {
+	pub async fn new(
+			server: &str,
+			port: u16,
+			username: &str,
+			password: &str,
+			from: &str,
+			to: &str,
+			subject: &str,
+	) -> Self {
+		let client = SmtpClientBuilder::new(server, port)
+			.implicit_tls(false)
+			.credentials((username, password))
+			.connect()
+			.await
+			.unwrap();
+
+		EmailNotifier {
+			client: Mutex::new(client),
+			from: from.to_string(),
+			to: to.to_string(),
+			subject: subject.to_string()
+		}
+	}
+}
+
+#[async_trait::async_trait]
+impl NotificationProcessor<Page> for EmailNotifier {
+	async fn process(&self, notification: &Page) {
+		let message = MessageBuilder::new()
+			.from((notification.author.as_str(), notification.contact.as_ref().unwrap_or(&self.from).as_str()))
+			.to(vec![("Guestbook", self.to.as_str())])
+			.subject(&self.subject)
+			.text_body(&notification.body);
+
+		if let Err(e) = self.client.lock().await.send(message).await {
+			tracing::error!("could not send message via email: {}", e);
+		}
+
+	}
+}

src/notifications/mod.rs

@@ -2,6 +2,9 @@
 #[cfg(feature = "telegram")]
 pub mod telegram;
 
+#[cfg(feature = "email")]
+pub mod email;
+
 pub mod console;