feat: ✨ send_mail

src/lib.rs

@@ -1,6 +1,7 @@
 pub mod database;
 pub mod error;
 pub mod feature;
+pub mod mail;
 pub mod routing;
 pub mod server;
 pub mod utils;
@@ -26,12 +27,12 @@ impl Default for DatabaseConfig {
 
         if header == "[database_config]" {
             Self {
-                connection_pool_size: database_configs.pop().unwrap().parse().unwrap(),
-                backend: database_configs.pop().unwrap(),
-                database: database_configs.pop().unwrap(),
-                password: database_configs.pop().unwrap(),
-                username: database_configs.pop().unwrap(),
-                address: database_configs.pop().unwrap(),
+                address: database_configs.pop_front().unwrap().parse().unwrap(),
+                username: database_configs.pop_front().unwrap().parse().unwrap(),
+                password: database_configs.pop_front().unwrap().parse().unwrap(),
+                database: database_configs.pop_front().unwrap().parse().unwrap(),
+                backend: database_configs.pop_front().unwrap().parse().unwrap(),
+                connection_pool_size: database_configs.pop_front().unwrap().parse().unwrap(),
             }
         } else {
             panic!("Database Config File Must Include [database_config] at the First Line")
@@ -50,7 +51,7 @@ impl Default for ServerConfig {
 
         if header == "[server_config]" {
             Self {
-                address: server_configs.pop().unwrap(),
+                address: server_configs.pop_front().unwrap().parse().unwrap(),
             }
         } else {
             panic!("Server Config File Must Include [server_config] at the First Line")

src/mail.rs

@@ -0,0 +1,77 @@
+use lettre::{
+    message::header::ContentType,
+    transport::smtp::{self, authentication::Credentials},
+    AsyncSmtpTransport, AsyncTransport, Message, Tokio1Executor,
+};
+
+use crate::utils::naive_toml_parser;
+
+const MAIL_CONFIG_FILE_LOCATION: &str = "./configs/mail_config.toml";
+
+pub struct MailConfig {
+    name: String,
+    mail_address: String,
+    username: String,
+    password: String,
+    relay_server: String,
+    port: u16,
+    starttls: bool,
+}
+
+impl Default for MailConfig {
+    fn default() -> Self {
+        let (header, mut mail_configs) = naive_toml_parser(MAIL_CONFIG_FILE_LOCATION);
+
+        if header == "[mail_config]" {
+            Self {
+                name: mail_configs.pop_front().unwrap().parse().unwrap(),
+                mail_address: mail_configs.pop_front().unwrap().parse().unwrap(),
+                username: mail_configs.pop_front().unwrap().parse().unwrap(),
+                password: mail_configs.pop_front().unwrap().parse().unwrap(),
+                relay_server: mail_configs.pop_front().unwrap().parse().unwrap(),
+                port: mail_configs.pop_front().unwrap().parse().unwrap(),
+                starttls: mail_configs.pop_front().unwrap().parse().unwrap(),
+            }
+        } else {
+            panic!("Mail Config File Must Include [mail_config] at the First Line")
+        }
+    }
+}
+
+pub async fn send_mail(
+    receiver: &String,
+    subject: &String,
+    body: &String,
+) -> Result<smtp::response::Response, smtp::Error> {
+    let mail_config = MailConfig::default();
+
+    let message = Message::builder()
+        .from(
+            format!("{} <{}>", mail_config.name, mail_config.mail_address)
+                .parse()
+                .unwrap(),
+        )
+        .to(format!("<{}>", receiver).parse().unwrap())
+        .subject(subject)
+        .header(ContentType::TEXT_PLAIN)
+        .body(body.to_owned())
+        .unwrap();
+
+    let credentials = Credentials::new(
+        mail_config.username.to_owned(),
+        mail_config.password.to_owned(),
+    );
+
+    let mailer = match mail_config.starttls {
+        true => AsyncSmtpTransport::<Tokio1Executor>::starttls_relay(&mail_config.relay_server),
+        false => AsyncSmtpTransport::<Tokio1Executor>::relay(&mail_config.relay_server),
+    };
+
+    let mailer = mailer
+        .unwrap()
+        .credentials(credentials)
+        .port(mail_config.port)
+        .build();
+
+    mailer.send(message).await
+}

src/utils.rs

@@ -1,14 +1,14 @@
-use std::{fs::File, io::Read};
+use std::{collections::VecDeque, fs::File, io::Read};
 
 use crate::error::ForumInputError;
 
-pub fn naive_toml_parser(file_location: &str) -> (String, Vec<String>) {
+pub fn naive_toml_parser(file_location: &str) -> (String, VecDeque<String>) {
     let mut toml_file = File::open(file_location).unwrap();
     let mut toml_ingredients = String::default();
     toml_file.read_to_string(&mut toml_ingredients).unwrap();
-    let mut toml_ingredients = toml_ingredients.lines().collect::<Vec<&str>>();
+    let mut toml_ingredients = toml_ingredients.lines().collect::<VecDeque<&str>>();
 
-    let header = toml_ingredients.remove(0).trim_end().to_string();
+    let header = toml_ingredients.pop_front().unwrap().trim_end().to_string();
     let parsed = toml_ingredients
         .iter()
         .map(|ingredient| {