removed all posts

public/index.html

@@ -63,7 +63,16 @@
       if (response.status != 200)
         return;
 
-      let posts = (await response.text()).split("\n");
+      let posts = (await response.text()).split("\n").filter(x => x != "");
+
+      if (posts.length == 0) {
+        let p = document.querySelector("#content>.content.posts>h2");
+        p.innerHTML = "This is where I would put my posts...<br>IF I HAD ANY!";
+        let elem = document.querySelector("#content>.content.posts>ul");
+        elem.remove();
+        
+        return;
+      }
 
       let p = document.querySelector("#content>.content.posts>h2");
       p.innerHTML = "Recent <a href=\"/posts\">posts</a>";

public/js/code_highlighter.js

@@ -178,6 +178,8 @@ const maps = {
       keyword("Ok"),
       keyword("Err"),
       keyword("in"),
+      keyword("Self"),
+      keyword("mut"),
 
       altKeyword("if"),
       altKeyword("else"),
@@ -185,6 +187,9 @@ const maps = {
       altKeyword("loop"),
       altKeyword("for"),
       altKeyword("while"),
+      altKeyword("return"),
+      altKeyword("async"),
+      altKeyword("await"),
 
       altKeyword("mod"),
       altKeyword("use"),

public/posts/_Putting hungry minecraft servers to sleep/post.md

@@ -61,17 +61,74 @@ wanted. [One crate](https://www.youtube.com/watch?v=E4WlUXrJgy4) was useful
 for seeing how an implementation of parsing packets was done, but ultimately 
 I had to write my own parser.
 
-***images of minecraft protocol***
+![An image of the steps taken to do a Ping using the minecraft protocol](/posts/Putting hungry minecraft servers to sleep/ping.png "Source: <a href='https://minecraft.wiki/w/Java_Edition_protocol/FAQ#What_does_the_normal_status_ping_sequence_look_like?'>minecraft.wiki</a>")
 
 ## Detecting the subdomain
 
+The first step in routing the traffic was determining where to send it to.  
+
 Luckily for me, the Minecraft procotol sends the full address it is trying to
 connect to during the handshake. This meant that I simply had to parse the 
 handshake and extract the subdomain from the address, see if it matches any
 configured server, and then redirect all traffic to the internal port that 
 server runs on.
 
-***code explanation***
+`$ vim protocol/handshake.rs`
+```rust
+impl Handshake {
+    pub async fn new(buf: &mut BufferedReader) -> Result<Self, Error> {
+        // Packets start with their type id. The handshake is id 0x00
+        if !check_bytes(&[0x00], buf).await? {
+            return Err(Error::Err(
+                "Wrong packet type for handshake. Expected {} got {}".into(),
+            ));
+        }
+        buf.read(1).await?; // Consume handhake byte
+
+        let protocol_version = VarInt::read_from(buf).await?;
+        let address = read_string(buf).await?;
+        let port = buf.read_u16().await?;
+        let next_state = VarInt::read_from(buf).await?;
+
+        return Ok(
+            Self {
+                protocol_version,
+                address,
+                port,
+                next_state,
+            },
+        );
+    }
+}
+```
+
+The only thing I was interrested in was the `address` part of the packet. This is a full string
+containing the text the user typed in the `IP Address` field in their client.
+
+Once I had this it was as simple as splitting by `.` and taking the first result. This "server name" would now be used to look up the corosponding servers information in a table.
+
+```rust
+
+    let result = Handshake::new(&mut reader).await;
+    if !result.is_ok() {
+        return Ok(None);
+    }
+
+    let handshake = result.ok().unwrap();
+    let split = handshake.address.split(".").collect::<Vec<&str>>();
+    let server_name = *split.first().unwrap();
+
+    if !SERVERS.lock().unwrap().contains_key(server_name) {
+        println!("Unknown server {}", server_name);
+        write_unknown_server_status(server_name.into(), &mut reader).await?;
+        return Ok(None);
+    }
+    let mut server_lock = SERVERS.lock().unwrap();
+    let server = server_lock.get_mut(server_name).unwrap();
+    status = server.status;
+    port = server.port;
+
+```
 
 ***show images of hibernation and starting***
 

src/main.rs

@@ -127,10 +127,10 @@ fn handle_connection(mut stream: TcpStream) {
                                     let y = file_name.to_str();
                                     let ft = x.file_type();
                                     if y.is_some() {
-                                        if ft.is_ok() && ft.unwrap().is_dir() {
-                                            true
-                                        } else if y.unwrap().starts_with("_") {
+                                        if y.unwrap().starts_with("_") {
                                             false
+                                        } else if ft.is_ok() && ft.unwrap().is_dir() {
+                                            true
                                         } else if y.unwrap().ends_with(".md") {
                                             true
                                         } else {
@@ -228,7 +228,7 @@ fn handle_connection(mut stream: TcpStream) {
                                     }
                                 })
                                 .reduce(|a, b| format!("{}\n{}", b, a))
-                                .unwrap();
+                                .unwrap_or("".to_owned());
                             format!("HTTP/1.1 200 OK\r\nContent-Type: text/text\r\nContent-Length: {}\r\n\r\n{}", data.len(), data)
                         }
                         Err(e) => {