From e35fd954472416b68a4387e47dde7debae7d5b54 Mon Sep 17 00:00:00 2001
From: Pass Automated Testing Suite <Pass-Automated-Testing-Suite@zx2c4.com>
Date: Sat, 16 Oct 2021 21:07:16 +0200
Subject: [PATCH 1/1] initial commit

---
 .gitignore  |    1 +
 Cargo.lock  | 1758 +++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |   10 +
 src/main.rs |   61 ++
 4 files changed, 1830 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
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+++ b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
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index 0000000..0062f24
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..a8fe024
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "actix-gcd"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+actix-web = "1.0.8"
+serde = { version = "1.0", features = ["derive"] }
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..ea248c2
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,61 @@
+use actix_web::{web, App, HttpResponse, HttpServer};
+use serde::Deserialize;
+
+#[derive(Deserialize)]
+struct GcdParameters {
+    n: u64,
+    m: u64,
+}
+
+fn main() {
+    let server = HttpServer::new(|| {
+        App::new()
+            .route("/", web::get().to(get_index))
+            .route("/gcd", web::post().to(post_gcd))
+    });
+    println!("Serving on http://localhost:3000...");
+    server
+        .bind("127.0.0.1:3000")
+        .expect("error binding server to address")
+        .run()
+        .expect("error running server");
+}
+
+fn get_index() -> HttpResponse {
+    HttpResponse::Ok().content_type("text/html").body(
+        r#"
+              <title>GCD Calculator</title>
+              <form action"/gcd" method="post">
+              <input type="text" name="n" />
+              <input type="text" name="m" />
+              <button type="submit">Compute GCD</button>
+              </form>
+              "#,
+    )
+}
+
+fn post_gcd(form: web::Form<GcdParameters>) -> HttpResponse {
+    if form.n == 0 || form.m == 0 {
+        return HttpResponse::BadRequest()
+            .content_type("text/html")
+            .body("Computing the GCD with zero is boring");
+    }
+    let response = format!(
+        "The greatest common divisor of the numbers {} and {} is <b>{}</b>",
+        form.n,
+        form.m,
+        gcd(form.n, form.m)
+    );
+    HttpResponse::Ok().content_type("text/html").body(response)
+}
+
+fn gcd(mut n: u64, mut m: u64) -> u64 {
+    assert!(n != 0 && m != 0);
+    while m != 0 {
+        if m < n {
+            std::mem::swap(&mut m, &mut n);
+        }
+        m %= n;
+    }
+    n
+}
-- 
2.20.1