- added new pasta type URL and automatic redirection endpoint

- added water.css styling
- added CL argument to set port
- added raw URL to pasta list

Cargo.toml

@@ -11,3 +11,5 @@ askama = "0.10"
 askama-filters = { version = "0.1.3", features = ["chrono"] }
 chrono = "0.4.19"
 rand = "0.8.5"
+linkify = "0.8.1"
+clap = { version = "3.1.12", features = ["derive"] }

README.MD

@@ -2,10 +2,10 @@
 
 ![Screenshot](git/index.png)
 
-MicroBin is a super tiny and simple self hosted pastebin app written in Rust. The executable is around 6MB and it uses 2MB memory (plus your pastas).
+MicroBin is a super tiny and simple self hosted pastebin app written in Rust. The executable is only a few megabytes and uses very little memory (plus your pastas). 
 
 ### Installation
-Simply clone the repository, build it with `cargo build --release` and run the `microbin` executable in the created `target/release/` directory. It will start on port 8080. 
+Simply clone the repository, build it with `cargo build --release` and run the `microbin` executable in the created `target/release/` directory. It will start on port 8080 but you can change this with `-p` or `--port` arguments. 
 
 To install it as a service on your Linux machine, create a file called `/etc/systemd/system/microbin.service`, paste this into it with the value of `ExecStart` replaced with the actual path to microbin on your machine.
 
@@ -24,15 +24,16 @@ WantedBy=multi-user.target
 Then start the service with `systemctl start microbin` and enable it on boot with `systemctl enable microbin`.
 
 ### Features
-- No CSS or JS, super lightweight and simple
+- Very little CSS and no JS, super lightweight and simple (see [water.css](https://github.com/kognise/water.css))
 - Animal names instead of random numbers for pasta identifiers
 - Automatically expiring pastas
 - Never expiring pastas
 - Listing and manually removing pastas
+- URL shortening and redirection
 
 ### Needed improvements
 - Persisting pastas on disk (currently they are lost on restart)
 - Removing pasta after N reads
 - File uploads
-- URL shortening
+- ~~URL shortening~~ (added on 23 April 2022)
 

src/main.rs

@@ -1,25 +1,34 @@
 extern crate core;
 
+use actix_files as fs;
+use actix_web::web::Data;
+use actix_web::{get, post, web, App, HttpRequest, HttpResponse, HttpServer, Responder, Result};
+use askama::Template;
+use clap::Parser;
+use linkify::{LinkFinder, LinkKind};
+use rand::Rng;
+use regex::Regex;
 use std::path::PathBuf;
 use std::sync::Mutex;
 use std::time::{SystemTime, UNIX_EPOCH};
 
-use actix_files::NamedFile;
-use actix_web::{App, get, HttpRequest, HttpResponse, HttpServer, post, Responder, Result, web};
-use actix_web::web::Data;
-use askama::Template;
-use rand::Rng;
-
 use crate::animalnumbers::{to_animal_names, to_u64};
 use crate::pasta::{Pasta, PastaFormData};
 
-mod pasta;
 mod animalnumbers;
+mod pasta;
 
 struct AppState {
     pastas: Mutex<Vec<Pasta>>,
 }
 
+#[derive(Parser, Debug)]
+#[clap(author, version, about, long_about = None)]
+struct Args {
+    #[clap(short, long, default_value_t = 8080)]
+    port: u32,
+}
+
 #[derive(Template)]
 #[template(path = "index.html")]
 struct IndexTemplate {}
@@ -38,42 +47,53 @@ struct PastaListTemplate<'a> {
 
 #[get("/")]
 async fn index() -> impl Responder {
-	HttpResponse::Found().content_type("text/html").body(IndexTemplate {}.render().unwrap())
+    HttpResponse::Found()
+        .content_type("text/html")
+        .body(IndexTemplate {}.render().unwrap())
 }
 
 #[post("/create")]
 async fn create(data: web::Data<AppState>, pasta: web::Form<PastaFormData>) -> impl Responder {
     let mut pastas = data.pastas.lock().unwrap();
 
-	let mut innerPasta = pasta.into_inner();
+    let inner_pasta = pasta.into_inner();
 
     let timenow: i64 = match SystemTime::now().duration_since(UNIX_EPOCH) {
         Ok(n) => n.as_secs(),
         Err(_) => panic!("SystemTime before UNIX EPOCH!"),
     } as i64;
 
-	let expiration = match innerPasta.expiration.as_str() {
+    let expiration = match inner_pasta.expiration.as_str() {
         "1min" => timenow + 60,
         "10min" => timenow + 60 * 10,
         "1hour" => timenow + 60 * 60,
         "24hour" => timenow + 60 * 60 * 24,
         "1week" => timenow + 60 * 60 * 24 * 7,
         "never" => 0,
-		_ => panic!("Unexpected expiration time!")
+        _ => panic!("Unexpected expiration time!"),
     };
 
-	let mut newPasta = Pasta {
+    let pasta_type = if is_valid_url(inner_pasta.content.as_str()) {
+        String::from("url")
+    } else {
+        String::from("text")
+    };
+
+    let new_pasta = Pasta {
         id: rand::thread_rng().gen::<u16>() as u64,
-		content: innerPasta.content,
+        content: inner_pasta.content,
         created: timenow,
+        pasta_type,
         expiration,
     };
 
-	let id = newPasta.id;
+    let id = new_pasta.id;
 
-	pastas.push(newPasta);
+    pastas.push(new_pasta);
 
-	HttpResponse::Found().append_header(("Location", format!("/pasta/{}", to_animal_names(id)))).finish()
+    HttpResponse::Found()
+        .append_header(("Location", format!("/pasta/{}", to_animal_names(id))))
+        .finish()
 }
 
 #[get("/pasta/{id}")]
@@ -85,14 +105,38 @@ async fn getpasta(data: web::Data<AppState>, id: web::Path<String>) -> HttpRespo
 
     for pasta in pastas.iter() {
         if pasta.id == id {
-			return HttpResponse::Found().content_type("text/html").body(PastaTemplate { pasta }.render().unwrap());
+            return HttpResponse::Found()
+                .content_type("text/html")
+                .body(PastaTemplate { pasta }.render().unwrap());
         }
     }
 
     HttpResponse::Found().body("Pasta not found! :-(")
 }
 
-#[get("/rawpasta/{id}")]
+#[get("/url/{id}")]
+async fn redirecturl(data: web::Data<AppState>, id: web::Path<String>) -> HttpResponse {
+    let mut pastas = data.pastas.lock().unwrap();
+    let id = to_u64(&*id.into_inner());
+
+    remove_expired(&mut pastas);
+
+    for pasta in pastas.iter() {
+        if pasta.id == id {
+            if pasta.pasta_type == "url" {
+                return HttpResponse::Found()
+                    .append_header(("Location", String::from(&pasta.content)))
+                    .finish();
+            } else {
+                return HttpResponse::Found().body("This is not a valid URL. :-(");
+            }
+        }
+    }
+
+    HttpResponse::Found().body("Pasta not found! :-(")
+}
+
+#[get("/raw/{id}")]
 async fn getrawpasta(data: web::Data<AppState>, id: web::Path<String>) -> String {
     let mut pastas = data.pastas.lock().unwrap();
     let id = to_u64(&*id.into_inner());
@@ -118,7 +162,9 @@ async fn remove(data: web::Data<AppState>, id: web::Path<String>) -> HttpRespons
     for (i, pasta) in pastas.iter().enumerate() {
         if pasta.id == id {
             pastas.remove(i);
-			return HttpResponse::Found().append_header(("Location", "/pastalist")).finish();
+            return HttpResponse::Found()
+                .append_header(("Location", "/pastalist"))
+                .finish();
         }
     }
 
@@ -131,17 +177,38 @@ async fn list(data: web::Data<AppState>) -> HttpResponse {
 
     remove_expired(&mut pastas);
 
-	HttpResponse::Found().content_type("text/html").body(PastaListTemplate { pastas: &pastas }.render().unwrap())
+    HttpResponse::Found()
+        .content_type("text/html")
+        .body(PastaListTemplate { pastas: &pastas }.render().unwrap())
 }
 
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
+    let args = Args::parse();
+    println!(
+        "{}",
+        format!("Listening on http://127.0.0.1:{}", args.port.to_string())
+    );
+
     let data = web::Data::new(AppState {
         pastas: Mutex::new(Vec::new()),
     });
 
-	HttpServer::new(move || App::new().app_data(data.clone()).service(index).service(create).service(getpasta).service(getrawpasta).service(remove).service(list)
+    HttpServer::new(move || {
-	).bind("127.0.0.1:8080")?.run().await
+        App::new()
+            .app_data(data.clone())
+            .service(index)
+            .service(create)
+            .service(getpasta)
+            .service(redirecturl)
+            .service(getrawpasta)
+            .service(remove)
+            .service(list)
+            .service(fs::Files::new("/static", "./static"))
+    })
+    .bind(format!("127.0.0.1:{}", args.port.to_string()))?
+    .run()
+    .await
 }
 
 fn remove_expired(pastas: &mut Vec<Pasta>) {
@@ -150,7 +217,11 @@ fn remove_expired(pastas: &mut Vec<Pasta>) {
         Err(_) => panic!("SystemTime before UNIX EPOCH!"),
     } as i64;
 
-	pastas.retain(|p| {
+    pastas.retain(|p| p.expiration == 0 || p.expiration > timenow);
-		p.expiration == 0 || p.expiration > timenow
+}
-	});
+
+fn is_valid_url(url: &str) -> bool {
+    let finder = LinkFinder::new();
+    let spans: Vec<_> = finder.spans(url).collect();
+    spans[0].as_str() == url && Some(&LinkKind::Url) == spans[0].kind()
 }

src/pasta.rs

@@ -8,7 +8,8 @@ pub struct Pasta {
 	pub id: u64,
 	pub content: String,
 	pub created: i64,
-	pub expiration: i64
+	pub expiration: i64,
+	pub pasta_type: String
 }
 
 #[derive(Deserialize)]

templates/header.html

@@ -3,22 +3,26 @@
     <title>MicroBin</title>
     <meta charset="utf-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-<body style="max-width: 720px;
+    <link rel="stylesheet" href="/static/water.css">
+    </head>
+<body style="
+    max-width: 720px;
         margin: auto;
         padding-left:0.5rem;
         padding-right:0.5rem;
         line-height: 1.5;
-        font-size: 1.1em;">
+        font-size: 1.1em;
+        ">
 <br>
 
 <b style="margin-right: 0.5rem">
-    MicroBin
+    <i><span style="font-size:2.2rem; margin-right:1rem">μ</span></i> MicroBin
 </b>
-|
+
 <a href="/" style="margin-right: 0.5rem; margin-left: 0.5rem">New Pasta</a>
-|
+
 <a href="/pastalist" style="margin-right: 0.5rem; margin-left: 0.5rem">Pasta List</a>
-|
+
 <a href="https://github.com/szabodanika/microbin" style="margin-right: 0.5rem; margin-left: 0.5rem">GitHub</a>
  
 <hr>

templates/index.html

@@ -1,6 +1,6 @@
 {% include "header.html" %}
 <form action="create" method="POST">
-    <input name="id" value="0" type="hidden">
+    <br>
     <label for="expiration">Expiration</label><br>
     <select name="expiration" id="expiration">
         <optgroup label="Expire">
@@ -15,9 +15,9 @@
     <br>
     <label>Content</label>
     <br>
-    <textarea style="width: 100%; min-height: 100px" name="content"></textarea>
+    <textarea style="width: 100%; min-height: 100px" name="content" autofocus></textarea>
-    <br>
     <br>
     <input style="width: 100px; background-color: limegreen"; type="submit" value="Save"/>
+    <br>
 </form>
 {% include "footer.html" %}

templates/pasta.html

@@ -1,6 +1,4 @@
 {% include "header.html" %}
-<a href="/rawpasta/{{pasta.idAsAnimals()}}">Raw Pasta</a>
+<a href="/raw/{{pasta.idAsAnimals()}}">Raw Pasta</a>
-<pre style="background: lightgray; border: 1px black solid; padding: 0.5rem; overflow: auto">
+<pre><code>{{pasta}}</code></pre>
-{{pasta}}
-</pre>
 {% include "footer.html" %}

templates/pastalist.html

@@ -6,8 +6,13 @@
     No pastas yet. 😔 Create one <a href="/">here</a>.
 </p>
 {%- else %}
-<table style="width: 100%" border="1">
+<br>
-    <tr style="background: lightgrey">
+<table style="width: 100%">
+<thead>
+    <tr>
+      <th colspan="4">Pastas</th>
+     </tr>
+    <tr>
         <th>
             Key
         </th>
@@ -21,7 +26,10 @@
 
         </th>
     </tr>
+    </thead>
+    <tbody>
     {% for pasta in pastas %}
+         {% if pasta.pasta_type == "text" %}
             <tr>
                 <td>
                     <a href="/pasta/{{pasta.idAsAnimals()}}">{{pasta.idAsAnimals()}}</a>
@@ -33,10 +41,56 @@
                     {{pasta.expirationAsString()}}
                 </td>
                 <td>
+                   <a style="margin-right:1rem" href="/raw/{{pasta.idAsAnimals()}}">Raw</a>
                    <a href="/remove/{{pasta.idAsAnimals()}}">Remove</a>
                 </td>
             </tr>
+         {%- endif %}
     {% endfor %}
+    </tbody>
+    </table>
+    <br>
+    <table>
+    <thead>
+      <tr>
+      <th colspan="4">URL Redirects</th>
+     </tr>
+     <tr >
+        <th>
+            Key
+        </th>
+        <th>
+            Created
+        </th>
+        <th>
+            Expiration
+        </th>
+        <th>
+
+        </th>
+    </tr>
+    </thead>
+    {% for pasta in pastas %}
+        {% if pasta.pasta_type == "url" %}
+            <tr>
+                <td>
+                    <a href="/url/{{pasta.idAsAnimals()}}">{{pasta.idAsAnimals()}}</a>
+                </td>
+                <td>
+                    {{pasta.createdAsString()}}
+                </td>
+                <td>
+                    {{pasta.expirationAsString()}}
+                </td>
+                <td>
+                   <a style="margin-right:1rem" href="/raw/{{pasta.idAsAnimals()}}">Raw</a>
+                   <a href="/remove/{{pasta.idAsAnimals()}}">Remove</a>
+                </td>
+            </tr>
+        {%- endif %}
+    {% endfor %}
+    </tbody>
 </table>
+<br>
 {%- endif %}
 {% include "footer.html" %}