added: work on naersk migration

Flake lock file changes:

• Updated input 'flake-utils':
    'github:numtide/flake-utils/7e5bf3925f6fbdfaf50a2a7ca0be2879c4261d19' (2021-09-13)
  → 'github:numtide/flake-utils/846b2ae0fc4cc943637d3d1def4454213e203cba' (2022-01-20)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/703756c104991e8e9812cac3c42479b4e39e7036' (2021-10-18)
  → 'github:NixOS/nixpkgs/7534942c6a009e8035d24c273b77a0b275db9bf1' (2022-01-22)

.drone.yml

@@ -3,12 +3,11 @@ name: default
 
 steps:
  - name: build
-   image: rust:1.37.0-buster
+   image: rust:1.41.0-buster
    commands:
     - apt update && apt install git clang make pkg-config nettle-dev libssl-dev capnproto libsqlite3-dev -y
     - cargo test
-    - rustup target add x86_64-unknown-linux-musl
-    - cargo build --release --target x86_64-unknown-linux-musl
+    - cargo install --path . --root .
  - name: dockerize
    image: plugins/docker
    settings:

Cargo.toml

@@ -1,22 +1,23 @@
 [package]
 name = "brownpaper"
-version = "0.1.0"
-authors = ["shim_ <shimun@shimun.net>"]
+version = "0.4.0"
+authors = ["shimun <shimun@shimun.net>"]
 edition = "2018"
 
-[profile.release]
-opt-level = 'z'
-panic = 'abort'
-
 [dependencies]
+
 snap = "0.1"
+
 rustc-serialize = "0.3.19"
+
+iron = "0.6.0"
+
 rand = "0.4.2"
+
 byteorder = "1.3.2"
 chrono = "0.4.9"
-sequoia-openpgp = "0.9.0"
-c2-chacha = "0.2.2"
+sequoia-openpgp = "0.12.0"
+lazy_static = "1.4.0"
+c2-chacha = "0.3.3"
 sha2 = "0.8.0"
 hex = "0.3.2"
-tower-web = "0.3.7"
-tokio = "0.1.22"

Dockerfile

@@ -1,9 +1,21 @@
+FROM rust:1.41.0 as builder
+
+COPY . /bp
+
+RUN apt update
+
+RUN apt install clang nettle-dev -y 
+
+RUN cargo install --path /bp --root /usr
+
 FROM debian:buster-slim
 
 VOLUME /snips
 
 EXPOSE 3000
 
-COPY target/release/brownpaper /bin/
+COPY --from=builder /usr/bin/brownpaper /bin/
+
+WORKDIR /
 
 ENTRYPOINT [ "/bin/brownpaper" ]

bp.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+BP_ENDPOINT=${BROWNPAPER_ENDPOINT:-https://shimun.net/bp}
+CURL_ARGS="--write-out %{url_effective}\\n --silent -o /dev/null"
+GPG_ARGS="$([ ! -z "$BROWNPAPER_KEY" ] && echo "--local-user $BROWNPAPER_KEY")"
+if [ ! -z "$1" ]; then
+	printf "brownpaper$1" | gpg --sign -a $GPG_ARGS | curl -s --data @-  -X POST $BP_ENDPOINT/new -Ls $CURL_ARGS
+else
+	(printf "brownpaper"; cat) | gpg --sign -a $GPG_ARGS | curl -s --data @-  -X POST $BP_ENDPOINT/new -Ls $CURL_ARGS
+fi

default.nix

@@ -0,0 +1,31 @@
+{ pkgs ? (import <nixpkgs> { })
+, callPackage ? pkgs.callPackage
+, stdenv ? pkgs.stdenv
+, fetchgit ? pkgs.fetchgit
+, name ? "brownpaper"
+, src ? ./.
+}:
+let
+  filteredSrc = src; # flake only includeds files tracked by git builtins.filterSource pkgs.lib.cleanSourceFilter src;
+  crate2nix_tools = callPackage (pkgs.crate2nix.src + "/tools.nix") { };
+  overrides = with pkgs.llvmPackages_10;
+    pkgs.defaultCrateOverrides // rec {
+      nettle-sys = attrs: rec {
+        nativeBuildInputs = [ clang pkgs.pkg-config ];
+        buildInputs = [ pkgs.nettle ];
+        LIBCLANG_PATH = "${libclang.lib}/lib";
+      };
+      brownpaper = attrs: {
+        buildInputs = [ pkgs.gmp ];
+      };
+    };
+  client = with pkgs; runCommandLocal "brownpaper"
+    {
+      script = "${filteredSrc}/bp.sh";
+      nativeBuildInputs = [ makeWrapper ];
+    } ''
+    makeWrapper $script $out/bin/brownpaper \
+    --prefix PATH : ${with pkgs; lib.makeBinPath [ bash curl gnupg ]}
+  '';
+in
+{ server = (callPackage (crate2nix_tools.generatedCargoNix { inherit name; src = filteredSrc; }) { inherit pkgs; defaultCrateOverrides = overrides; }).rootCrate.build;  inherit client; }

flake.lock

@@ -0,0 +1,42 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1642700792,
+        "narHash": "sha256-XqHrk7hFb+zBvRg6Ghl+AZDq03ov6OshJLiSWOoX5es=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "846b2ae0fc4cc943637d3d1def4454213e203cba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1642847654,
+        "narHash": "sha256-0rwMCG/xGoVlV01qMZSQu/1GdhKNpWPWyu2Xr5CNhg4=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7534942c6a009e8035d24c273b77a0b275db9bf1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,64 @@
+{
+  description = "Brownpaper pastebin";
+
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs";
+
+  inputs.naersk.url = "github:nix-community/naersk";
+
+  outputs = { self, nixpkgs, flake-utils, naersk }:
+    (flake-utils.lib.eachSystem [ "x86_64-linux" ]
+      (system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          naersk-lib = naersk.lib."${system}";
+          bp = pkgs.callPackage ./default.nix { inherit pkgs; src = ./.; };
+        in
+        rec {
+          apps = builtins.mapAttrs (_n: pkg: flake-utils.lib.mkApp { drv = pkg; }) packages;
+          defaultApp = apps.brownpaper;
+          packages = rec {
+            brownpaper = bp.client;
+            brownpaper-server = bp.server;
+            brownpaper-server-nk = naersk-lib.buildPackage (with pkgs; with llvmPackages_10; {
+              pname = "brownpaper";
+              root = self;
+              nativeBuildInputs = [ clang pkg-config ];
+              buildInputs = [ gmp nettle ];
+              LIBCLANG_PATH = "${libclang.lib}/lib";
+
+            });
+            brownpaper-server-docker = pkgs.dockerTools.buildLayeredImage {
+              name = "brownpaper";
+              config = {
+                Volume = "/snips";
+                Port = "3000";
+                Cmd = [ "${brownpaper-server}/bin/brownpaper" ];
+              };
+            };
+          };
+          defaultPackage = packages.brownpaper;
+          devShell = with pkgs; mkShell {
+            buildInputs = [ cargo rustfmt nettle llvmPackages_10.clang llvmPackages_10.libclang pkgconfig ];
+            LIBCLANG_PATH = "${llvmPackages_10.libclang}/lib";
+          };
+          hydraJobs.build = defaultPackage;
+        }
+      ) // rec {
+      nixosModules.brownpaper = import ./mod.nix;
+      nixosModule = nixosModules.brownpaper;
+    }) // rec {
+      overlay = final: prev:
+        let
+          bp = final.callPackage ./default.nix { pkgs = final; src = self; };
+        in
+        {
+          brownpaper = bp.client;
+          brownpaper-server = bp.server;
+        };
+      overlays = {
+        pinned = final: prev: (overlay (import nixpkgs { inherit (final) system; }) { });
+      };
+    };
+}

mod.nix

@@ -0,0 +1,102 @@
+{ lib, pkgs, config, ... }:
+with lib;
+let
+  cfg = config.services.brownpaper;
+  cfgc = config.programs.brownpaper;
+  package = if pkgs ? brownpaper-server && pkgs ? brownpaper then { server = pkgs.brownpaper-server; client = pkgs.brownpaper; } else (pkgs.callPackage ./. { inherit pkgs; src = ./.; });
+  keyDir = pkgs.runCommand "brownpaper-keys" { } ''
+    mkdir -p $out
+    ${concatStringsSep " && " (builtins.map (key: "cp ${key} $out/") cfg.pgpKeys)}
+  '';
+in
+{
+  options.services.brownpaper = {
+    enable = mkEnableOption "brownpaper service";
+    listen = mkOption {
+      type = types.str;
+      default = "127.0.0.1";
+    };
+    port = mkOption {
+      type = types.int;
+      default = 3000;
+    };
+    dataDir = mkOption {
+      type = types.path;
+      default = "/var/lib/brownpaper";
+    };
+    user = mkOption {
+      type = types.str;
+      default = "brownpaper";
+    };
+    pgpKeys = mkOption {
+      type = with types; listOf path;
+      default = [ ];
+    };
+    gc = {
+      enable = mkEnableOption "delete old snippets";
+      dates = mkOption {
+        type = types.str;
+        default = "00:00";
+        description = ''
+          Specification (in the format described by
+          <citerefentry><refentrytitle>systemd.time</refentrytitle>
+          <manvolnum>7</manvolnum></citerefentry>) of the time at
+          which the garbage collector will run.
+        '';
+      };
+      maxAge = mkOption {
+        type = types.ints.positive;
+        default = 60 * 24 * 30;
+        description = "maximum age in minutes after which snippets will be garbage collected. Defaults to 30 days";
+      };
+    };
+  };
+  options.programs.brownpaper = {
+    enable = mkEnableOption "brownpaper client";
+    endpoint = mkOption {
+      type = types.str;
+      default = "http://${cfg.listen}:${toString cfg.port}";
+    };
+  };
+  config = {
+    users.users = mkIf (cfg.enable && cfg.user == "brownpaper") { ${cfg.user} = { isSystemUser = true; group = "brownpaper"; }; };
+    systemd.services = mkIf cfg.enable {
+      brownpaper-init.script = ''
+        mkdir -p '${cfg.dataDir}'
+        chown ${cfg.user} -R '${cfg.dataDir}'
+      '' + (optionalString (cfg.pgpKeys != [ ]) ''
+        DATADIR='${toString cfg.dataDir}'
+        ([ ! -s "$DATADIR/keys" ] && [ -d "$DATADIR/keys" ]) && mv "$DATADIR/keys" "$DATADIR/keys.bak"
+        [ -s "$DATADIR/keys" ] && rm "$DATADIR/keys"
+        ln -s ${keyDir} "$DATADIR/keys"
+      '');
+      brownpaper = {
+        wantedBy = [ "multi-user.target" ];
+        wants = [ "brownpaper-init.service" ];
+        after = [ "brownpaper-init.service" "network-online.target" ];
+        path = [ pkgs.coreutils ];
+        environment.BROWNPAPER_STORAGE_DIR = "${toString cfg.dataDir}";
+        confinement = {
+          enable = true;
+          packages = with pkgs; [ bash coreutils findutils tzdata keyDir ];
+        };
+        script = ''
+          ${package.server}/bin/brownpaper ${cfg.listen}:${toString cfg.port}
+        '';
+        serviceConfig = {
+          BindPaths = [ cfg.dataDir ] ++ (optional (cfg.pgpKeys != [ ]) keyDir);
+          User = cfg.user;
+        };
+      };
+      brownpaper-gc = mkIf cfg.gc.enable {
+        startAt = cfg.gc.dates;
+        script = "${pkgs.findutils}/bin/find ${cfg.dataDir} -maxdepth 1 -type f -mmin +${toString cfg.gc.maxAge} -delete";
+      };
+    };
+    environment.systemPackages = optionals cfgc.enable [
+      (pkgs.writeShellScriptBin "brownpaper" ''
+        BROWNPAPER_ENDPOINT='${cfgc.endpoint}' ${package.client}/bin/brownpaper "$@"
+      '')
+    ];
+  };
+}

src/chacha_io.rs

@@ -1,11 +1,12 @@
-use c2_chacha::stream_cipher::{NewStreamCipher, SyncStreamCipher};
-use c2_chacha::ChaCha20;
+use c2_chacha::stream_cipher::{NewStreamCipher, SyncStreamCipher, SyncStreamCipherSeek};
+use c2_chacha::{ChaCha12, ChaCha20};
+use std::convert::TryInto;
 use std::io::{Read, Result, Write};
 
-pub struct ChaChaReader<'a>(ChaCha20, &'a mut dyn Read);
+pub struct ChaChaReader<'a>(ChaCha20, &'a mut Read);
 
 impl<'a> ChaChaReader<'a> {
-    pub fn new(key: &[u8], nonce: &[u8], source: &'a mut dyn Read) -> ChaChaReader<'a> {
+    pub fn new(key: &[u8], nonce: &[u8], source: &'a mut Read) -> ChaChaReader<'a> {
         ChaChaReader(ChaCha20::new_var(key, nonce).unwrap(), source)
     }
 }
@@ -18,10 +19,10 @@ impl<'a> Read for ChaChaReader<'a> {
     }
 }
 
-pub struct ChaChaWriter<'a>(ChaCha20, &'a mut dyn Write);
+pub struct ChaChaWriter<'a>(ChaCha20, &'a mut Write);
 
 impl<'a> ChaChaWriter<'a> {
-    pub fn new(key: &[u8], nonce: &[u8], sink: &'a mut dyn Write) -> ChaChaWriter<'a> {
+    pub fn new(key: &[u8], nonce: &[u8], sink: &'a mut Write) -> ChaChaWriter<'a> {
         ChaChaWriter(ChaCha20::new_var(key, nonce).unwrap(), sink)
     }
 }

src/main.rs

@@ -1,13 +1,140 @@
 #[macro_use]
-extern crate tower_web;
-#[macro_use]
 extern crate lazy_static;
+extern crate chrono;
+extern crate iron;
+extern crate rand;
 extern crate sequoia_openpgp as openpgp;
+extern crate snap;
+
 mod chacha_io;
 mod pgp;
-mod server;
 mod snippet;
 
-fn main() {
-    server::run();
+use crate::pgp::KnownKeys;
+use crate::snippet::*;
+
+use iron::method::Method;
+use iron::modifiers::Redirect;
+use iron::prelude::*;
+use iron::url::Url;
+
+use iron::mime::Mime;
+use sha2::Digest;
+
+use std::env::{self, args};
+use std::io;
+use std::io::prelude::*;
+use std::iter::Iterator;
+use std::net::SocketAddr;
+use std::path::Path;
+use std::sync::Arc;
+use std::sync::Mutex;
+
+lazy_static! {
+    static ref STORAGE_DIR: String =
+        env::var("BROWNPAPER_STORAGE_DIR").unwrap_or("/snips".to_string());
+    static ref KNOWN_KEYS: Arc<Mutex<KnownKeys>> = Arc::new(Mutex::new(
+        KnownKeys::load_dir([&*STORAGE_DIR, "keys"].join("/")).expect("Failed to load pubkeys")
+    ));
+}
+
+const VERSION: &str = env!("CARGO_PKG_VERSION");
+
+fn handle(req: &mut Request) -> IronResult<Response> {
+    println!("{}", req.url);
+    let storage = SnippetStorage::new(&Path::new(&*STORAGE_DIR));
+    let segments: Vec<&str> = req.url.path();
+    match (&req.method, segments.first()) {
+        (Method::Get, Some(&"version")) => Ok(Response::with((iron::status::Ok, VERSION))),
+        (Method::Post, Some(path)) => {
+            if path == &"new" {
+                let snip = {
+                    let pgp_text: String = {
+                        let bytes = ((&mut req.body).bytes().take(1024 * 512).collect::<Result<
+                            Vec<u8>,
+                            io::Error,
+                        >>(
+                        ))
+                        .map_err(|err| IronError::new(err, ""))?;
+                        String::from_utf8(bytes)
+                            .map_err(|err| IronError::new(err, "Invalid utf8"))?
+                    };
+                    let b_text = KNOWN_KEYS
+                        .lock()
+                        .unwrap() //.map_err(|_| IronError::new(std::error::Error::from("Mutex Err"), "PGP Context unavailable"))?
+                        .verify(pgp_text.as_bytes())
+                        .map_err(|err| IronError::new(err, "Untrusted signature"))?;
+                    let text = String::from_utf8(b_text).unwrap();
+                    Snippet::random(&storage).write(&*text).map_err(|err| {
+                        let msg = format!("Failed to save snippet: {:?}", &err);
+                        IronError::new(err, msg)
+                    })
+                };
+                snip.map(|snip| {
+                    let mut snip_url: Url = req.url.clone().into();
+                    snip_url.set_path(&*("/".to_string() + &*snip.id));
+                    Response::with((
+                        iron::status::TemporaryRedirect,
+                        Redirect(iron::Url::from_generic_url(snip_url).unwrap()),
+                    ))
+                    /*Response::with((
+                        iron::status::Ok,
+                        format!(
+                            "<meta http-equiv=\"refresh\" content=\"0; url={}/\" />",
+                            snip_url
+                        ),
+                    ))*/
+                })
+            } else {
+                Ok(Response::with((
+                    iron::status::BadRequest,
+                    "Post to /new or die",
+                )))
+            }
+        }
+        (Method::Get, Some(path)) => {
+            let (id, mime) = {
+                let mut parts = path.split(".");
+                (
+                    parts.next().unwrap().to_string(),
+                    Some(parts.collect::<Vec<_>>().join("/"))
+                        .filter(|s| s.len() > 0)
+                        .and_then(|format| format.parse::<Mime>().ok()),
+                )
+            };
+            let mime = mime.unwrap_or("text/plain".parse().unwrap());
+            let att = storage.open(&id).map(|snip| snip.contents()).map(|res| {
+                Response::with(
+                    match res.map(|text| (iron::status::Ok, text)).map_err(|err| {
+                        let msg = format!("Failed to load snippet: {:?}", &err);
+                        msg
+                    }) {
+                        Ok(res) => res,
+                        Err(e) => (iron::status::InternalServerError, e),
+                    },
+                )
+                .set(mime)
+            });
+            Ok(att.unwrap_or(Response::with((iron::status::NotFound, "Not here sry"))))
+        }
+        (Method::Get, _) => Ok(Response::with((iron::status::NotFound, "Wrong path pal"))),
+        _ => Ok(Response::with((iron::status::BadRequest, "Give or take"))),
+    }
+}
+
+fn main() {
+    let chain = Chain::new(handle);
+    println!("Starting brownpaper: {}", &*STORAGE_DIR);
+    Iron::new(chain).http(
+        args()
+            .skip(1)
+            .next()
+            .map(|ip| {
+                ip.parse::<SocketAddr>()
+                    .expect("can't parse socket address")
+            })
+            .unwrap_or("0.0.0.0:3000".parse::<SocketAddr>().unwrap())
+            .to_string()
+            .as_str(),
+    );
 }

src/pgp.rs

@@ -1,13 +1,12 @@
-use crate::snippet::*;
 use openpgp::parse::stream::*;
 use openpgp::parse::Parse;
 use openpgp::*;
 use std::fs;
+use std::fs::File;
 use std::io;
 use std::io::prelude::*;
 use std::path::Path;
 
-#[derive(Debug, Clone)]
 pub struct KnownKeys {
     keys: Vec<openpgp::TPK>,
 }
@@ -41,6 +40,29 @@ impl KnownKeys {
         let mut v = Verifier::<&KnownKeys>::from_reader(r, helper, None).map_err(|e| {
             io::Error::new(io::ErrorKind::InvalidData, "Failed to verify signature")
         })?;
+        let mut buf = [0u8; 512];
+        let bp = "brownpaper".as_bytes();
+        loop {
+            match v.read(&mut buf)? {
+                0 => break,
+                read => {
+                    // first buffer read
+                    if content.len() == 0 {
+                        if !(buf.len() > bp.len() && bp == &buf[0..bp.len()]) {
+                            return Err(io::Error::new(
+                                io::ErrorKind::InvalidData,
+                                "Failed to verify signature(prefix)",
+                            ));
+                        } else {
+                            // remove prefix
+                            content.extend_from_slice(&buf[bp.len()..read])
+                        }
+                    } else {
+                        content.extend_from_slice(&buf[0..read]);
+                    }
+                }
+            }
+        }
         if v.read_to_end(&mut content).is_err() {
             return Err(io::Error::new(
                 io::ErrorKind::InvalidData,

src/server.rs

@@ -1,53 +0,0 @@
-use crate::pgp::KnownKeys;
-use crate::snippet::*;
-use std::path::Path;
-use std::sync::Mutex;
-use tokio::prelude::*;
-use tower_web::ServiceBuilder;
-use tower_web::{derive_resource_impl, impl_web};
-
-#[derive(Debug)]
-struct Brownpaper {
-    storage: SnippetStorage,
-    known_keys: Mutex<KnownKeys>,
-}
-
-impl_web! {
-    impl Brownpaper {
-        #[get("/")]
-        async fn root(&self) -> &'static str {
-            "Post /new, Get /<id>"
-        }
-
-        #[post("/new")]
-        async fn new(&self) -> Result<> {}
-
-        #[get("/:id")]
-        async fn snipptet(&self, id: String) -> Result<> {}
-
-        #[get("/file/:file_id")]
-        async fn snipptet_file(&self, file_id: String) -> Result<> {}
-    }
-}
-
-#[cfg(not(debug_assertions))]
-const STORAGE_DIR: &str = "/snips";
-
-#[cfg(debug_assertions)]
-const STORAGE_DIR: &str = "/tmp";
-
-pub fn run() {
-    let addr = "0.0.0.0:3000".parse().expect("Invalid address");
-    println!("Listening on http://{}", addr);
-
-    ServiceBuilder::new()
-        .resource(Brownpaper {
-            storage: SnippetStorage::new(Path::new(STORAGE_DIR)),
-            known_keys: Mutex::new(
-                KnownKeys::load_dir([STORAGE_DIR, "keys"].join("/"))
-                    .expect("Failed to load PGP Keys"),
-            ),
-        })
-        .run(&addr)
-        .unwrap();
-}

src/snippet.rs

@@ -1,31 +1,31 @@
 use crate::chacha_io::{ChaChaReader, ChaChaWriter};
 use byteorder::{BigEndian, ReadBytesExt, WriteBytesExt};
 use chrono::*;
+
 use rand::Rng;
 use sha2::{Digest, Sha256};
+
 use std::convert::TryInto;
+
 use std::fs::File;
 use std::io;
 use std::io::prelude::*;
 use std::iter::Iterator;
 use std::path::{Path, PathBuf};
 
-#[derive(Debug)]
 pub struct Snippet<'a> {
     pub id: String,
-    pub storage: &'a SnippetStorage,
+    pub storage: &'a SnippetStorage<'a>,
 }
 
 #[allow(dead_code)]
-#[derive(Debug)]
 pub struct SnippetMeta {
     created: DateTime<Utc>,
     compression: Option<String>,
 }
 
-#[derive(Debug)]
-pub struct SnippetStorage {
-    directory: PathBuf,
+pub struct SnippetStorage<'a> {
+    directory: &'a Path,
 }
 
 impl<'a> Snippet<'a> {
@@ -80,7 +80,7 @@ impl<'a> Snippet<'a> {
         hdl.read_exact(&mut comp)?;
         let comp = String::from_utf8(comp).unwrap();
         Ok(SnippetMeta {
-            created: Utc.timestamp_millis(timestamp),
+            created: Utc.timestamp(timestamp, 0),
             compression: Some(comp).filter(|_| comp_len > 0),
         })
     }
@@ -128,10 +128,10 @@ impl<'a> Snippet<'a> {
     }
 }
 
-impl SnippetStorage {
-    pub fn new(directory: impl Into<PathBuf>) -> SnippetStorage {
+impl<'a> SnippetStorage<'a> {
+    pub fn new(directory: &'a Path) -> SnippetStorage<'a> {
         SnippetStorage {
-            directory: directory.into(),
+            directory: directory,
         }
     }
     pub fn file_id(id: &str) -> String {