initial commit: used actix and added a GET fn

.gitignore

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+target/

Cargo.toml

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+[package]
+name = "simple-filehost"
+version = "0.1.0"
+authors = ["Amneesh Singh <natto@weirdnatto.in>"]
+edition = "2018"
+
+[dependencies]
+actix-web = "3"
+actix-files = "0.5.0"
+actix-multipart = "0.3.0"

LICENSE

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+           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                   Version 2, December 2004
+
+Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+Everyone is permitted to copy and distribute verbatim or modified
+copies of this license document, and changing it is allowed as long
+as the name is changed.
+
+           DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+  TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. You just DO WHAT THE FUCK YOU WANT TO.

README.md

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+# Simple Filehost (WIP)
+A simple filehost written in rust
+~~(Also my attempt at learning rust, this is my first rust code after Hello World)~~

flake.lock

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+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1614513358,
+        "narHash": "sha256-LakhOx3S1dRjnh0b5Dg3mbZyH0ToC9I8Y2wKSkBaTzU=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5466c5bbece17adaab2d82fae80b46e807611bf3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1622966049,
+        "narHash": "sha256-6g+28v94ISkVk9TBSsITVOnB2slK8plieWPIF2jo/l0=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "fbfb79400a08bf754e32b4d4fc3f7d8f8055cf94",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1617325113,
+        "narHash": "sha256-GksR0nvGxfZ79T91UUtWjjccxazv6Yh/MvEJ82v1Xmw=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "54c1e44240d8a527a8f4892608c4bce5440c3ecb",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay",
+        "utils": "utils"
+      }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs_2"
+      },
+      "locked": {
+        "lastModified": 1623034161,
+        "narHash": "sha256-cbw9X+nVFcpIuBga0hkbtzXbW2fyDWBon6oUN/uQmu0=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "0b952cdfa37f8b0fc70fc75fbd4605227cd0b272",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "locked": {
+        "lastModified": 1622445595,
+        "narHash": "sha256-m+JRe6Wc5OZ/mKw2bB3+Tl0ZbtyxxxfnAWln8Q5qs+Y=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "7d706970d94bc5559077eb1a6600afddcd25a7c8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A simple filehost written in rust";
+
+  inputs = {
+    nixpkgs.url = github:nixos/nixpkgs/nixos-unstable;
+    utils.url = github:numtide/flake-utils;
+    rust-overlay.url = github:oxalica/rust-overlay;
+  };
+
+  outputs = { self, nixpkgs, utils, rust-overlay }: 
+  utils.lib.eachDefaultSystem
+  (system:
+    let 
+      overlays = [ (import rust-overlay) ];
+      pkgs = import nixpkgs {
+        inherit system overlays;
+      };
+    in
+    {
+      devShell = with pkgs; mkShell {
+        buildInputs = [
+          rust-bin.nightly.latest.default
+          rust-analyzer
+        ];
+      };
+    }
+  );
+}

src/main.rs

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+mod post;
+use actix_files::NamedFile;
+use actix_web::{web, App, HttpRequest, HttpServer};
+use std::{env, io, path::PathBuf};
+
+const ROOT_DIR: &str = "/files/";
+
+fn get_token() -> String {
+    env::var("FILEHOST_TOKEN").expect("FILEHOST_TOKEN is not set")
+}
+
+async fn get_file(req: HttpRequest) -> Result<NamedFile, io::Error> {
+    let file_name = req.match_info().get("file").unwrap_or("default");
+    let file_path: PathBuf = format!("{}{}", ROOT_DIR, file_name).parse().unwrap();
+    match NamedFile::open(file_path) {
+        Ok(file) => Ok(file),
+        Err(_) => Err(io::Error::new(
+            io::ErrorKind::Other,
+            "No such file there, bhay",
+        )),
+    }
+}
+
+#[actix_web::main]
+async fn main() -> io::Result<()> {
+    HttpServer::new(|| {
+        App::new()
+            .route("/{file}", web::get().to(get_file))
+            .route("/", web::post().to(post::post))
+    })
+    .bind(("127.0.0.1", 8888))?
+    .run()
+    .await
+}

src/post.rs

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+pub fn post() -> &'static str {
+    "acha"
+}