API Key Handling and some more dynamic functions.

.gitignore

@@ -19,6 +19,7 @@ Cargo.lock
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+keys.txt
 
 # Added by cargo
 

Cargo.toml

@@ -4,3 +4,5 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+base64 = "0.22.1"
+rand = "0.8"

src/main.rs

@@ -12,7 +12,7 @@ struct IncomingRequest {
 
 // Listen on port and return response.
 fn main() {
-    let run_local = false;
+    let run_local = true;
     let mut listener = TcpListener::bind("127.0.0.1:6942").unwrap();
 
     if !run_local {
@@ -44,15 +44,15 @@ fn handle_connection(mut stream: TcpStream) {
     let mut response = String::new();
     // If not a GET request, or missing API key, throw 404.
     if inc_request.req_type != "GET" || api_key.is_empty() {
-        response = return_404();
+        response = return_response("404");
     }
     else {
-        // Check that the API key is in fact fact valuid.
-        // Not really checking right now.
-        response = return_200(); 
+        let mut keyfile: Vec<String> = fs::read_to_string("./keys.txt").into_iter().collect();
+        keyfile[0].pop().expect("Not a string").to_string();
+        if api_key == keyfile[0] {
+            response = return_response("200");
+        }
     }
-    // If not present, return 404.
-    // Perhaps move both of those conditions to a new function.
     stream.write_all(response.as_bytes()).unwrap();
 }
 
@@ -72,26 +72,28 @@ fn get_api_key(headers: Vec<String>) -> String {
     api_key
 }
 
-// Return a 404.
-fn return_404() -> String {
-    let status_line = "HTTP/1.1 404 Not Found";
-    let contents = fs::read_to_string("./public/404.json").unwrap();
-    let length = contents.len();
+#[allow(unused_assignments)]
+fn return_response(code: &str) -> String {
+    let mut response = String::new();
+    match code {
+        "404" => {
+            let status_line = "HTTP/1.1 404 Not Found";
+            let contents = fs::read_to_string("./public/404.json").unwrap();
+            let length = contents.len();
 
-    let response =
-        format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");
+            response =
+                format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");
+        },
+        "200" => {
+            let status_line = "HTTP/1.1 200 OK";
+            let contents = fs::read_to_string("./public/200.json").unwrap();
+            let length = contents.len();
 
-   response 
-}
-
-// Return a 200 with the json.
-fn return_200() -> String {
-    let status_line = "HTTP/1.1 200 OK";
-    let contents = fs::read_to_string("./public/200.json").unwrap();
-    let length = contents.len();
-
-    let response =
-        format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");
-
-   response 
+            response =
+                format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");
+        },
+        &_ => todo!()
+    }
+
+    response
 }