create email client

2026-02-11 10:05:41 +00:00 · 2021-06-30 14:16:48 +05:30
parent 8118e73df6
commit 9ed458ebfa
4 changed files with 180 additions and 129 deletions
--- a/src/email/mod.rs
+++ b/src/email/mod.rs
@@ -0,0 +1,18 @@
+/*
+* Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Affero General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+pub mod verification;
--- a/src/email/verification.rs
+++ b/src/email/verification.rs
@@ -0,0 +1,75 @@
+/*
+* Copyright (C) 2021  Aravinth Manivannan <realaravinth@batsense.net>
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Affero General Public License as
+* published by the Free Software Foundation, either version 3 of the
+* License, or (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU Affero General Public License for more details.
+*
+* You should have received a copy of the GNU Affero General Public License
+* along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+//! Email operations: verification, notification, etc
+use lettre::{
+    message::{header, MultiPart, SinglePart},
+    AsyncTransport, Message,
+};
+
+use crate::AppData;
+use crate::SETTINGS;
+
+// The html we want to send.
+const HTML: &str = r#"<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Hello from Lettre!</title>
+</head>
+<body>
+    <div style="display: flex; flex-direction: column; align-items: center;">
+        <h2 style="font-family: Arial, Helvetica, sans-serif;">Hello from Lettre!</h2>
+        <h4 style="font-family: Arial, Helvetica, sans-serif;">A mailer library for Rust</h4>
+    </div>
+</body>
+</html>"#;
+
+async fn verification(data: &AppData) {
+    if let Some(smtp) = SETTINGS.smtp.as_ref() {
+        let from = format!("mCaptcha Admin <{}>", smtp.from);
+        const SUBJECT: &str = "[mCaptcha] Please verify your email";
+
+        let email = Message::builder()
+            .from(from.parse().unwrap())
+            .reply_to("Yuin <yuin@domain.tld>".parse().unwrap())
+            .to("Hei <hei@domain.tld>".parse().unwrap())
+            .subject(SUBJECT)
+            .multipart(
+                MultiPart::alternative() // This is composed of two parts.
+                    .singlepart(
+                        SinglePart::builder()
+                            .header(header::ContentType::TEXT_PLAIN)
+                            .body(String::from(
+                                "Hello from Lettre! A mailer library for Rust",
+                            )), // Every message should have a plain text fallback.
+                    )
+                    .singlepart(
+                        SinglePart::builder()
+                            .header(header::ContentType::TEXT_HTML)
+                            .body(String::from(HTML)),
+                    ),
+            )
+            .unwrap();
+
+        // unwrap is OK as SETTINGS.smtp is check at the start
+        match data.mailer.as_ref().unwrap().send(email).await {
+            Ok(_) => println!("Email sent successfully!"),
+            Err(e) => panic!("Could not send email: {:?}", e),
+        }
+    }
+}