Basic redirection working

Dockerfile

@@ -1,21 +1,27 @@
 FROM rust:1 as build
+RUN cargo install cargo-build-deps
 
-RUN mkdir /actix
-WORKDIR /actix
+RUN cargo new --bin simply-shorten
+WORKDIR /simply-shorten
 
-COPY ./actix/cargo.toml /actix/cargo.toml
-COPY ./actix/cargo.lock /actix/cargo.lock
+COPY ./actix/Cargo.toml .
+COPY ./actix/Cargo.lock .
 
-RUN cargo build --deps-only
+RUN cargo build-deps --release
 
-COPY ./actix /actix
+COPY ./actix/src ./src
+COPY ./actix/resources ./resources
 
-RUN cargo install --path .
+RUN cargo build --release
 
 FROM gcr.io/distroless/cc-debian10
 
 EXPOSE 2000
 
-COPY --from=build /usr/local/cargo/bin/actix /usr/local/bin/actix
+WORKDIR /opt
 
-CMD ["actix"]
+COPY --from=build /simply-shorten/target/release/simply-shorten /opt/simply-shorten
+COPY --from=build /simply-shorten/resources /opt/resources
+COPY ./urls.sqlite /opt/urls.sqlite
+
+CMD ["./simply-shorten"]

actix/.directory

@@ -0,0 +1,3 @@
+[Dolphin]
+Timestamp=2023,4,2,17,52,37.922
+Version=4

actix/Cargo.lock

@@ -2,14 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "actix"
-version = "0.1.0"
-dependencies = [
- "actix-files",
- "actix-web",
-]
-
 [[package]]
 name = "actix-codec"
 version = "0.5.0"
@@ -919,6 +911,17 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "simply-shorten"
+version = "0.1.0"
+dependencies = [
+ "actix-files",
+ "actix-web",
+ "regex",
+ "sqlite",
+ "sqlite3-src",
+]
+
 [[package]]
 name = "slab"
 version = "0.4.8"
@@ -944,6 +947,36 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "sqlite"
+version = "0.30.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b1908664131c21a38e5b531344d52a196ec338af5bf44f7fa2c83d539e9561d"
+dependencies = [
+ "libc",
+ "sqlite3-sys",
+]
+
+[[package]]
+name = "sqlite3-src"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d1815a7a02c996eb8e5c64f61fcb6fd9b12e593ce265c512c5853b2513635691"
+dependencies = [
+ "cc",
+ "pkg-config",
+]
+
+[[package]]
+name = "sqlite3-sys"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d47c99824fc55360ba00caf28de0b8a0458369b832e016a64c13af0ad9fbb9ee"
+dependencies = [
+ "libc",
+ "sqlite3-src",
+]
+
 [[package]]
 name = "syn"
 version = "1.0.109"

actix/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "actix"
+name = "simply-shorten"
 version = "0.1.0"
 edition = "2021"
 
@@ -7,4 +7,10 @@ edition = "2021"
 
 [dependencies]
 actix-web = "4"
-actix-files = "0.6.2"
+actix-files = "0.6.2"
+sqlite = "0.30.4"
+regex = "1.7.3"
+
+[dependencies.sqlite3-src]
+version="0.4.0"
+features=["bundled"]

actix/src/database.rs

@@ -0,0 +1,23 @@
+use sqlite::{open, Row};
+
+pub fn find_url(shortlink: &str) -> String {
+    let db = open("./urls.sqlite").expect("Unable to open database!");
+
+    let query = "SELECT long_url FROM urls WHERE short_url = ?";
+
+    let statement: Vec<Row> = db
+        .prepare(query)
+        .unwrap()
+        .into_iter()
+        .bind((1, shortlink))
+        .unwrap()
+        .map(|row| row.unwrap())
+        .collect();
+
+    let mut longlink = "";
+    if statement.len() == 1 {
+        longlink = statement[0].read::<&str, _>("long_url");
+    }
+
+    String::from(longlink)
+}

actix/src/main.rs

@@ -1,19 +1,44 @@
-use actix_files::Files;
-use actix_web::{get, web, App, HttpServer, Responder};
+use actix_files::{Files, NamedFile};
+use actix_web::{
+    get,
+    web::{self, Redirect},
+    App, HttpServer, Responder,
+};
+mod database;
+mod utils;
 
-#[get("/hello/{name}")]
-async fn greet(name: web::Path<String>) -> impl Responder {
-    format!("Hello {name}!")
+// Define the routes
+
+// Add new links
+
+// Return all active links
+
+// 404 error page
+#[get("/err/404")]
+async fn error404() -> impl Responder {
+    NamedFile::open_async("./resources/404.html").await
 }
 
-#[actix_web::main] // or #[tokio::main]
+// Handle a given shortlink
+#[get("/{shortlink}")]
+async fn link_handler(shortlink: web::Path<String>) -> impl Responder {
+    let longlink = utils::get_longurl(shortlink);
+    if longlink == String::from("") {
+        Redirect::to("/err/404")
+    } else {
+        Redirect::to(longlink).permanent()
+    }
+}
+
+#[actix_web::main]
 async fn main() -> std::io::Result<()> {
     HttpServer::new(|| {
         App::new()
-            .service(greet)
+            .service(link_handler)
+            .service(error404)
             .service(Files::new("/", "./resources/").index_file("index.html"))
     })
-    .bind(("127.0.0.1", 2000))?
+    .bind(("0.0.0.0", 2000))?
     .run()
     .await
 }

actix/src/utils.rs

@@ -0,0 +1,16 @@
+use crate::database;
+use actix_web::web;
+use regex::Regex;
+
+pub fn get_longurl(shortlink: web::Path<String>) -> String {
+    if validate_link(&shortlink) {
+        database::find_url(shortlink.as_str())
+    } else {
+        String::from("")
+    }
+}
+
+fn validate_link(link: &str) -> bool {
+    let re = Regex::new("[a-z0-9-_]+").unwrap();
+    re.is_match(link)
+}