Get thumbnail creation working again

Still gutting a lot of the old code, but this MR focuses more on ensuring that a file can be added and that the metadata gets saved.

Cargo.lock

@@ -158,18 +158,6 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
-[[package]]
-name = "block-buffer"
-version = "0.7.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0940dc441f31689269e10ac70eb1002a3a1d3ad1390e030043662eb7fe4688b"
-dependencies = [
- "block-padding",
- "byte-tools",
- "byteorder",
- "generic-array 0.12.4",
-]
-
 [[package]]
 name = "block-buffer"
 version = "0.10.4"
@@ -179,15 +167,6 @@ dependencies = [
  "generic-array 0.14.7",
 ]
 
-[[package]]
-name = "block-padding"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa79dedbb091f449f1f39e53edf88d5dbe95f895dae6135a8d7b881fb5af73f5"
-dependencies = [
- "byte-tools",
-]
-
 [[package]]
 name = "bodyparser"
 version = "0.8.0"
@@ -223,12 +202,6 @@ version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
 
-[[package]]
-name = "byte-tools"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3b5ca7a04898ad4bcd41c90c5285445ff5b791899bb1b0abdd2a2aa791211d7"
-
 [[package]]
 name = "bytemuck"
 version = "1.13.1"
@@ -550,22 +523,13 @@ dependencies = [
  "byteorder",
 ]
 
-[[package]]
-name = "digest"
-version = "0.8.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3d0c8c8752312f9713efd397ff63acb9f85585afbf179282e720e7704954dd5"
-dependencies = [
- "generic-array 0.12.4",
-]
-
 [[package]]
 name = "digest"
 version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
 dependencies = [
- "block-buffer 0.10.4",
+ "block-buffer",
  "crypto-common",
 ]
 
@@ -678,12 +642,6 @@ dependencies = [
  "zune-inflate",
 ]
 
-[[package]]
-name = "fake-simd"
-version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
-
 [[package]]
 name = "fastrand"
 version = "2.0.0"
@@ -714,7 +672,9 @@ name = "file-service"
 version = "0.1.0"
 dependencies = [
  "build_html",
+ "bytes",
  "chrono",
+ "futures-util",
  "hex-string",
  "http",
  "image 0.23.14",
@@ -1015,15 +975,6 @@ dependencies = [
  "typenum",
 ]
 
-[[package]]
-name = "generic-array"
-version = "0.12.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ffdf9f34f1447443d37393cc6c2b8313aebddcd96906caf34e54c68d8e57d7bd"
-dependencies = [
- "typenum",
-]
-
 [[package]]
 name = "generic-array"
 version = "0.14.7"
@@ -2323,12 +2274,6 @@ version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
-[[package]]
-name = "opaque-debug"
-version = "0.2.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2839e79665f131bdb5782e51f2c6c9599c133c6098982a54c794358bf432529c"
-
 [[package]]
 name = "openssl"
 version = "0.10.57"
@@ -3307,19 +3252,18 @@ checksum = "f04293dc80c3993519f2d7f6f511707ee7094fe0c6d3406feb330cdb3540eba3"
 dependencies = [
  "cfg-if",
  "cpufeatures",
- "digest 0.10.7",
+ "digest",
 ]
 
 [[package]]
 name = "sha2"
-version = "0.8.2"
+version = "0.10.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a256f46ea78a0c0d9ff00077504903ac881a1dafdc20da66545699e7776b3e69"
+checksum = "479fb9d862239e610720565ca91403019f2f00410f1864c5aa7479b950a76ed8"
 dependencies = [
- "block-buffer 0.7.3",
- "digest 0.8.1",
- "fake-simd",
- "opaque-debug",
+ "cfg-if",
+ "cpufeatures",
+ "digest",
 ]
 
 [[package]]

file-service/.gitignore

@@ -0,0 +1 @@
+fixtures

file-service/.ignore

@@ -0,0 +1,2 @@
+fixtures
+var

file-service/Cargo.toml

@@ -22,10 +22,13 @@ params      = "*"
 router      = "*"
 serde_json  = "*"
 serde       = { version = "1.0", features = ["derive"] }
-sha2        = "0.8.2"
+sha2        = "0.10"
 thiserror   = "1.0.20"
 tokio       = { version = "1", features = [ "full" ] }
 uuid        = { version = "0.4", features = [ "serde", "v4" ] }
 warp        = { version = "0.3" }
 pretty_env_logger = { version = "0.5" }
 log         = { version = "0.4" }
+bytes       = { version = "1" }
+futures-util    = { version = "0.3" }
+

file-service/src/lib/fileinfo.rs

@@ -1,159 +0,0 @@
-use chrono::prelude::*;
-use hex_string::HexString;
-use serde::{Deserialize, Serialize};
-use serde_json;
-use sha2::{Digest, Sha256};
-use std::fs::remove_file;
-use std::io::{Read, Write};
-use std::path::{Path, PathBuf};
-
-use crate::{append_extension, FileError};
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct FileInfo {
-    pub id: String,
-    pub size: u64,
-    pub created: DateTime<Utc>,
-    pub file_type: String,
-    pub hash: String,
-
-    #[serde(skip)]
-    root: PathBuf,
-}
-
-impl FileInfo {
-    pub fn save(&self, root: &Path) -> Result<(), FileError> {
-        let ser = serde_json::to_string(self).unwrap();
-        std::fs::File::create(FileInfo::metadata_path(&self.id, root))
-            .and_then(|mut stream| stream.write(ser.as_bytes()).map(|_| (())))
-            .map_err(FileError::from)
-    }
-
-    pub fn open(id: &str, root: &Path) -> Result<FileInfo, FileError> {
-        let mut buf = Vec::new();
-
-        let md_path = FileInfo::metadata_path(id, root);
-        std::fs::File::open(md_path.clone())
-            .and_then(|mut stream| stream.read_to_end(&mut buf))
-            .map_err(move |err| match err.kind() {
-                std::io::ErrorKind::NotFound => FileError::FileNotFound(md_path),
-                _ => FileError::IOError(err),
-            })?;
-
-        let str_repr = std::str::from_utf8(&buf)?;
-
-        serde_json::from_str(&str_repr).map_err(FileError::from)
-    }
-
-    pub fn from_path(path: &Path) -> Result<FileInfo, FileError> {
-        match (path.is_file(), path.is_dir()) {
-            (false, false) => Err(FileError::FileNotFound(PathBuf::from(path))),
-            (false, true) => Err(FileError::NotAFile(PathBuf::from(path))),
-            (true, _) => Ok(()),
-        }?;
-
-        let metadata = path.metadata().map_err(FileError::IOError)?;
-        let id = path
-            .file_name()
-            .map(|s| String::from(s.to_string_lossy()))
-            .ok_or(FileError::NotAFile(PathBuf::from(path)))?;
-        let created = metadata
-            .created()
-            .map(|m| DateTime::from(m))
-            .map_err(|err| FileError::IOError(err))?;
-        let file_type = String::from(
-            mime_guess::from_path(path)
-                .first_or_octet_stream()
-                .essence_str(),
-        );
-        let hash = FileInfo::hash_file(path)?;
-        Ok(FileInfo {
-            id,
-            size: metadata.len(),
-            created,
-            file_type,
-            hash: hash.as_string(),
-            root: PathBuf::from(path.parent().unwrap()),
-        })
-    }
-
-    fn hash_file(path: &Path) -> Result<HexString, FileError> {
-        let mut buf = Vec::new();
-        let mut file = std::fs::File::open(path).map_err(FileError::from)?;
-
-        file.read_to_end(&mut buf).map_err(FileError::from)?;
-        let mut vec = Vec::new();
-        vec.extend_from_slice(Sha256::digest(&buf).as_slice());
-        Ok(HexString::from_bytes(&vec))
-    }
-
-    fn metadata_path(id: &str, root: &Path) -> PathBuf {
-        let mut path = PathBuf::from(root);
-        path.push(".metadata");
-        path.push(id.clone());
-        append_extension(&path, "json")
-    }
-
-    pub fn delete(&self) -> Result<(), FileError> {
-        let path = FileInfo::metadata_path(&self.id, &self.root);
-        remove_file(path).map_err(FileError::from)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-
-    use crate::lib::utils::FileCleanup;
-
-    #[test]
-    fn it_generates_information_from_file_path() {
-        let path = Path::new("fixtures/rawr.png");
-        match FileInfo::from_path(&path) {
-            Ok(FileInfo {
-                id,
-                size,
-                file_type,
-                hash,
-                ..
-            }) => {
-                assert_eq!(id, "rawr.png");
-                assert_eq!(size, 23777);
-                assert_eq!(file_type, "image/png");
-                assert_eq!(
-                    hash,
-                    "b6cd35e113b95d62f53d9cbd27ccefef47d3e324aef01a2db6c0c6d3a43c89ee"
-                );
-            }
-            Err(err) => {
-                println!("error loading file path: {}", err);
-                assert!(false);
-            }
-        }
-    }
-
-    #[test]
-    fn it_saves_and_loads_metadata() {
-        let path = Path::new("fixtures/rawr.png");
-        let _ = FileCleanup(append_extension(path, "json"));
-        let info = FileInfo::from_path(&path).unwrap();
-        info.save(Path::new("fixtures")).unwrap();
-
-        assert!(Path::new("fixtures/.metadata/rawr.png.json").is_file());
-
-        let info_ = FileInfo::open("rawr.png", Path::new("fixtures")).unwrap();
-        assert_eq!(info_.id, "rawr.png");
-        assert_eq!(info_.size, 23777);
-        assert_eq!(info_.created, info.created);
-        assert_eq!(info_.file_type, "image/png");
-        assert_eq!(info_.hash, info.hash);
-    }
-
-    #[test]
-    fn it_extends_a_file_extension() {
-        assert_eq!(
-            append_extension(Path::new("fixtures/rawr.png"), "json"),
-            Path::new("fixtures/rawr.png.json")
-        );
-    }
-}

file-service/src/lib/mod.rs

@@ -1,58 +0,0 @@
-use std::path::{Path, PathBuf};
-use uuid::Uuid;
-
-mod file;
-mod fileinfo;
-mod thumbnail;
-pub mod utils;
-
-pub use file::{File, FileError};
-pub use fileinfo::FileInfo;
-pub use thumbnail::Thumbnail;
-
-pub struct App {
-    files_root: PathBuf,
-}
-
-impl App {
-    pub fn new(files_root: &Path) -> App {
-        App {
-            files_root: PathBuf::from(files_root),
-        }
-    }
-
-    pub fn list_files(&self) -> Vec<Result<File, FileError>> {
-        File::list(&self.files_root)
-    }
-
-    pub fn add_file(
-        &mut self,
-        temp_path: &PathBuf,
-        filename: &Option<PathBuf>,
-    ) -> Result<File, FileError> {
-        let id = Uuid::new_v4().hyphenated().to_string();
-        File::new(&id, &self.files_root, temp_path, filename)
-    }
-
-    pub fn delete_file(&mut self, id: String) -> Result<(), FileError> {
-        let f = File::open(&id, &self.files_root)?;
-        f.delete()
-    }
-
-    pub fn get_metadata(&self, id: String) -> Result<FileInfo, FileError> {
-        FileInfo::open(&id, &self.files_root)
-    }
-
-    pub fn get_file(&self, id: &str) -> Result<(FileInfo, std::fs::File), FileError> {
-        let f = File::open(&id, &self.files_root)?;
-        let info = f.info();
-        let stream = f.stream()?;
-        Ok((info, stream))
-    }
-
-    pub fn get_thumbnail(&self, id: &str) -> Result<(FileInfo, std::fs::File), FileError> {
-        let f = File::open(id, &self.files_root)?;
-        let stream = f.thumbnail().stream()?;
-        Ok((f.info(), stream))
-    }
-}

file-service/src/lib/thumbnail.rs

@@ -1,82 +0,0 @@
-use image::imageops::FilterType;
-use std::fs::remove_file;
-use std::path::{Path, PathBuf};
-
-use crate::FileError;
-
-#[derive(Clone, Debug, PartialEq)]
-pub struct Thumbnail {
-    pub id: String,
-    pub root: PathBuf,
-}
-
-impl Thumbnail {
-    pub fn open(id: &str, root: &Path) -> Result<Thumbnail, FileError> {
-        let mut source_path = PathBuf::from(root);
-        source_path.push(id);
-
-        let self_ = Thumbnail {
-            id: String::from(id),
-            root: PathBuf::from(root),
-        };
-
-        let thumbnail_path = Thumbnail::thumbnail_path(id, root);
-        if !thumbnail_path.exists() {
-            let img = image::open(source_path)?;
-            let tn = img.resize(640, 640, FilterType::Nearest);
-            tn.save(thumbnail_path)?;
-        }
-
-        Ok(self_)
-    }
-
-    pub fn from_path(path: &Path) -> Result<Thumbnail, FileError> {
-        let id = path
-            .file_name()
-            .map(|s| String::from(s.to_string_lossy()))
-            .ok_or(FileError::NotAnImage(PathBuf::from(path)))?;
-
-        let root = path
-            .parent()
-            .ok_or(FileError::FileNotFound(PathBuf::from(path)))?;
-
-        Thumbnail::open(&id, root)
-    }
-
-    fn thumbnail_path(id: &str, root: &Path) -> PathBuf {
-        let mut path = PathBuf::from(root);
-        path.push(".thumbnails");
-        path.push(id.clone());
-        path
-    }
-
-    pub fn stream(&self) -> Result<std::fs::File, FileError> {
-        let thumbnail_path = Thumbnail::thumbnail_path(&self.id, &self.root);
-        std::fs::File::open(thumbnail_path.clone()).map_err(|err| {
-            if err.kind() == std::io::ErrorKind::NotFound {
-                FileError::FileNotFound(thumbnail_path)
-            } else {
-                FileError::from(err)
-            }
-        })
-    }
-
-    pub fn delete(&self) -> Result<(), FileError> {
-        let path = Thumbnail::thumbnail_path(&self.id, &self.root);
-        remove_file(path).map_err(FileError::from)
-    }
-}
-
-#[cfg(test)]
-mod test {
-    use super::*;
-    use crate::lib::utils::FileCleanup;
-
-    #[test]
-    fn it_creates_a_thumbnail_if_one_does_not_exist() {
-        let _ = FileCleanup(PathBuf::from("fixtures/.thumbnails/rawr.png"));
-        let _ =
-            Thumbnail::open("rawr.png", Path::new("fixtures")).expect("thumbnail open must work");
-        assert!(Path::new("fixtures/.thumbnails/rawr.png").is_file());
-    }
-}

file-service/src/main.rs

@@ -13,22 +13,24 @@ use http::status::StatusCode;
 // use mustache::{compile_path, Template};
 // use orizentic::{Permissions, ResourceName, Secret};
 use build_html::Html;
+use bytes::Buf;
+use futures_util::{Stream, StreamExt};
 use std::{
     collections::HashMap,
     io::Read,
     net::{IpAddr, Ipv4Addr, SocketAddr},
-    path::Path,
+    path::PathBuf,
     sync::{Arc, RwLock},
 };
-use warp::Filter;
+use warp::{filters::multipart::Part, Filter};
 
 mod cookies;
 mod html;
-mod lib;
 mod middleware;
 mod pages;
+mod store;
 
-use lib::{utils::append_extension, App, File, FileError, FileInfo};
+pub use store::{FileInfo, Store};
 
 /*
 fn is_admin(resource: &ResourceName, permissions: &Permissions) -> bool {
@@ -247,6 +249,32 @@ fn serve_file(
     }
 }
 
+async fn collect_content(mut part: Part) -> Result<(Option<String>, Vec<u8>), String> {
+    let mut content: Vec<u8> = Vec::new();
+
+    while let Some(Ok(data)) = part.data().await {
+        let mut reader = data.reader();
+        reader.read_to_end(&mut content).unwrap();
+    }
+
+    Ok((part.filename().map(|s| s.to_owned()), content))
+}
+
+async fn collect_multipart(
+    mut stream: warp::filters::multipart::FormData,
+) -> Result<Vec<(Option<String>, Vec<u8>)>, warp::Error> {
+    let mut content: Vec<(Option<String>, Vec<u8>)> = Vec::new();
+
+    while let Some(part) = stream.next().await {
+        match part {
+            Ok(part) => content.push(collect_content(part).await.unwrap()),
+            Err(err) => return Err(err),
+        }
+    }
+
+    Ok(content)
+}
+
 #[tokio::main]
 pub async fn main() {
     /*
@@ -292,7 +320,7 @@ pub async fn main() {
 
     pretty_env_logger::init();
 
-    let app = Arc::new(RwLock::new(App::new(Path::new(
+    let app = Arc::new(RwLock::new(Store::new(PathBuf::from(
         &std::env::var("FILE_SHARE_DIR").unwrap(),
     ))));
 
@@ -309,6 +337,7 @@ pub async fn main() {
         }
     });
 
+    /*
     let post_handler = warp::path!(String)
         .and(warp::post())
         .and(warp::filters::body::form())
@@ -320,6 +349,7 @@ pub async fn main() {
                 .status(StatusCode::SEE_OTHER)
                 .body(vec![])
         });
+        */
 
     let thumbnail = warp::path!(String / "tn")
         .and(warp::get())
@@ -351,16 +381,29 @@ pub async fn main() {
             }
         });
 
-    let upload = warp::path!().and(warp::post()).map(|| {
-        println!("upload");
-        warp::reply()
-    });
+    let upload = warp::path!()
+        .and(warp::post())
+        .and(warp::filters::multipart::form().max_length(1024 * 1024 * 32))
+        .then(|form: warp::filters::multipart::FormData| async move {
+            let files = collect_multipart(form).await;
+            /*
+            for (filename, content) in files {
+                app.write()
+                    .unwrap()
+                    .add_file(Some(filename), content)
+                    .unwrap();
+            }
+            */
+            println!("file length: {:?}", files.map(|f| f.len()));
+            warp::reply()
+        });
 
     let delete = warp::path!(String).and(warp::delete()).map(|id: String| {
         println!("delete {}", id);
         warp::reply()
     });
 
+    /*
     let server = warp::serve(
         root.or(post_handler)
             .or(file)
@@ -369,6 +412,8 @@ pub async fn main() {
             .or(delete)
             .with(log),
     );
+    */
+    let server = warp::serve(root.or(upload).with(log));
     server
         .run(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 8002))
         .await;

file-service/src/pages.rs

@@ -1,7 +1,10 @@
-use crate::{html::*, File, FileError};
+use crate::{
+    html::*,
+    store::{File, ReadFileError},
+};
 use build_html::{self, Container, ContainerType, Html, HtmlContainer};
 
-pub fn index(files: Vec<Result<File, FileError>>) -> build_html::HtmlPage {
+pub fn index(files: Vec<Result<File, ReadFileError>>) -> build_html::HtmlPage {
     let mut page = build_html::HtmlPage::new()
         .with_title("Admin list of files")
         .with_header(1, "Admin list of files")
@@ -21,7 +24,7 @@ pub fn index(files: Vec<Result<File, FileError>>) -> build_html::HtmlPage {
         let container = match file {
             Ok(ref file) => thumbnail(file).with_html(
                 Form::new()
-                    .with_path(&format!("/{}", file.info().id))
+                    .with_path(&format!("/{}", *file.id))
                     .with_method("post")
                     .with_html(Input::new("hidden", "_method").with_value("delete"))
                     .with_html(Button::new("Delete")),
@@ -41,8 +44,8 @@ pub fn thumbnail(file: &File) -> Container {
     let tn = Container::new(ContainerType::Div)
         .with_attributes(vec![("class", "thumbnail")])
         .with_link(
-            format!("/{}", file.info().id),
-            Image::new(&format!("{}/tn", file.info().id)).to_html_string(),
+            format!("/{}", *file.id),
+            Image::new(&format!("{}/tn", *file.id)).to_html_string(),
         );
     container.add_html(tn);
     container

file-service/src/store/file.rs

@@ -1,50 +1,98 @@
-use super::fileinfo::FileInfo;
-use super::thumbnail::Thumbnail;
-use std::fs::{copy, read_dir, remove_file};
-use std::path::{Path, PathBuf};
-use thiserror::Error;
-
-#[derive(Error, Debug)]
-pub enum FileError {
-    #[error("not implemented")]
-    NotImplemented,
-
-    #[error("file not found: `{0}`")]
-    FileNotFound(PathBuf),
-
-    #[error("file is not an image: `{0}`")]
-    NotAnImage(PathBuf),
-
-    #[error("path is not a file: `{0}`")]
-    NotAFile(PathBuf),
-
-    #[error("Image loading error")]
-    ImageError(#[from] image::ImageError),
-
-    #[error("IO error")]
-    IOError(#[from] std::io::Error),
-
-    #[error("JSON error")]
-    JSONError(#[from] serde_json::error::Error),
-
-    #[error("UTF8 Error")]
-    UTF8Error(#[from] std::str::Utf8Error),
-}
+use super::{
+    fileinfo::FileInfo, thumbnail::Thumbnail, FileId, FileRoot, PathResolver, ReadFileError,
+    WriteFileError,
+};
+use chrono::prelude::*;
+use hex_string::HexString;
+use sha2::{Digest, Sha256};
+use std::{
+    convert::TryFrom,
+    io::{Read, Write},
+    path::{Path, PathBuf},
+};
+use uuid::Uuid;
 
 /// One file in the database, complete with the path of the file and information about the
 /// thumbnail of the file.
 #[derive(Debug)]
 pub struct File {
-    info: FileInfo,
-    tn: Thumbnail,
-    root: PathBuf,
+    pub id: FileId,
+    pub path: PathResolver,
+    pub info: FileInfo,
 }
 
 impl File {
+    /// Create a new entry in the database
+    pub fn new<CTX: FileRoot>(filename: String, context: CTX) -> Result<Self, WriteFileError> {
+        let id = FileId::from(Uuid::new_v4().hyphenated().to_string());
+
+        let mut path = context.root();
+        path.push(filename.clone());
+        let path = PathResolver::try_from(path).map_err(|_| WriteFileError::InvalidPath)?;
+
+        let file_type = mime_guess::from_ext(&filename)
+            .first_or_text_plain()
+            .essence_str()
+            .to_owned();
+
+        let info = FileInfo {
+            size: 0,
+            created: Utc::now(),
+            file_type,
+            hash: "".to_owned(),
+        };
+
+        let mut md_file = std::fs::File::create(path.metadata_path())?;
+        md_file.write(&serde_json::to_vec(&info)?)?;
+
+        Ok(Self { id, path, info })
+    }
+
+    pub fn load(resolver: PathResolver) -> Result<Self, ReadFileError> {
+        /*
+        Ok(Self {
+            id: FileId::from(
+                resolver
+                    .file_path()
+                    .file_stem()
+                    .unwrap()
+                    .to_string_lossy()
+                    .to_owned(),
+            ),
+            path: resolver,
+            info: FileInfo::load(resolver.metadata_path())?,
+        })
+        */
+        unimplemented!()
+    }
+
+    pub fn set_content(&mut self, content: Vec<u8>) -> Result<(), WriteFileError> {
+        let mut content_file = std::fs::File::create(self.path.file_path())?;
+        let byte_count = content_file.write(&content)?;
+        self.info.size = byte_count;
+
+        let mut md_file = std::fs::File::create(self.path.metadata_path())?;
+        md_file.write(&serde_json::to_vec(&self.info)?)?;
+
+        Ok(())
+    }
+
+    pub fn content(&self) -> Result<Vec<u8>, ReadFileError> {
+        unimplemented!()
+    }
+
+    pub fn hash_content(&self) -> Result<HexString, ReadFileError> {
+        let mut buf = Vec::new();
+        let mut file = std::fs::File::open(self.path.file_path())?;
+        file.read_to_end(&mut buf).map_err(ReadFileError::from)?;
+
+        Ok(HexString::from_bytes(&Sha256::digest(&buf).to_vec()))
+    }
+
+    /*
     pub fn new(
         id: &str,
         root: &Path,
-        temp_path: &PathBuf,
         filename: &Option<PathBuf>,
     ) -> Result<Self, FileError> {
         let mut dest_path = PathBuf::from(root);
@@ -136,25 +184,43 @@ impl File {
         self.tn.delete()?;
         self.info.delete()
     }
+    */
 }
 
 #[cfg(test)]
 mod test {
     use super::*;
-    use crate::lib::utils::FileCleanup;
-    use std::path::{Path, PathBuf};
+    use crate::store::utils::FileCleanup;
+    use std::{convert::TryFrom, path::PathBuf};
+
+    struct FileContext(PathBuf);
+
+    impl FileRoot for FileContext {
+        fn root(&self) -> PathBuf {
+            self.0.clone()
+        }
+    }
 
     #[test]
     fn it_opens_a_file() {
         let _md = FileCleanup(PathBuf::from("fixtures/.metadata/rawr.png.json"));
         let _tn = FileCleanup(PathBuf::from("fixtures/.thumbnails/rawr.png"));
 
-        File::open("rawr.png", Path::new("fixtures/")).expect("to succeed");
+        File::new(
+            "rawr.png".to_owned(),
+            FileContext(PathBuf::from("fixtures/")),
+        )
+        .expect("to succeed");
     }
 
     #[test]
     fn it_can_return_a_thumbnail() {
-        let f = File::open("rawr.png", Path::new("fixtures/")).expect("to succeed");
+        let f = File::new(
+            "rawr.png".to_owned(),
+            FileContext(PathBuf::from("fixtures/")),
+        )
+        .expect("to succeed");
+        /*
         assert_eq!(
             f.thumbnail(),
             Thumbnail {
@@ -162,18 +228,24 @@ mod test {
                 root: PathBuf::from("fixtures/"),
             },
         );
+        */
     }
 
     #[test]
     fn it_can_return_a_file_stream() {
-        let f = File::open("rawr.png", Path::new("fixtures/")).expect("to succeed");
-        f.stream().expect("to succeed");
+        let f = File::new(
+            "rawr.png".to_owned(),
+            FileContext(PathBuf::from("fixtures/")),
+        )
+        .expect("to succeed");
+        // f.stream().expect("to succeed");
     }
 
     #[test]
     fn it_raises_an_error_when_file_not_found() {
-        match File::open("garbage", Path::new("fixtures/")) {
-            Err(Error::FileNotFound(_)) => assert!(true),
+        let resolver = PathResolver::try_from("fixtures/rawr.png").expect("a valid path");
+        match File::load(resolver) {
+            Err(ReadFileError::FileNotFound) => assert!(true),
             _ => assert!(false),
         }
     }

file-service/src/store/fileinfo.rs

@@ -0,0 +1,124 @@
+use super::{ReadFileError, WriteFileError};
+use chrono::prelude::*;
+use serde::{Deserialize, Serialize};
+use serde_json;
+use std::{
+    io::{Read, Write},
+    path::PathBuf,
+};
+
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct FileInfo {
+    pub size: usize,
+    pub created: DateTime<Utc>,
+    pub file_type: String,
+    pub hash: String,
+}
+
+impl FileInfo {
+    pub fn load(path: PathBuf) -> Result<Self, ReadFileError> {
+        let mut content: Vec<u8> = Vec::new();
+        let mut file = std::fs::File::open(path)?;
+        file.read_to_end(&mut content)?;
+        let js = serde_json::from_slice(&content)?;
+
+        Ok(js)
+    }
+
+    pub fn save(&self, path: PathBuf) -> Result<(), WriteFileError> {
+        let ser = serde_json::to_string(self).unwrap();
+        let mut file = std::fs::File::create(path)?;
+        file.write(ser.as_bytes())?;
+        Ok(())
+    }
+
+    /*
+    pub fn from_path(path: &Path) -> Result<FileInfo, ReadFileError> {
+        match (path.is_file(), path.is_dir()) {
+            (false, false) => Err(ReadFileError::FileNotFound),
+            (false, true) => Err(ReadFileError::NotAFile),
+            (true, _) => Ok(()),
+        }?;
+
+        let metadata = path.metadata().map_err(ReadFileError::IOError)?;
+        let id = path
+            .file_name()
+            .map(|s| String::from(s.to_string_lossy()))
+            .ok_or(ReadFileError::NotAFile)?;
+        let created = metadata
+            .created()
+            .map(|m| DateTime::from(m))
+            .map_err(|err| ReadFileError::IOError(err))?;
+        let file_type = String::from(
+            mime_guess::from_path(path)
+                .first_or_octet_stream()
+                .essence_str(),
+        );
+        let hash = FileInfo::hash_file(path)?;
+        Ok(FileInfo {
+            id,
+            size: metadata.len(),
+            created,
+            file_type,
+            hash: hash.as_string(),
+            root: PathBuf::from(path.parent().unwrap()),
+        })
+    }
+    */
+
+    /*
+    fn hash_file(path: &Path) -> Result<HexString, ReadFileError> {
+        let mut buf = Vec::new();
+        let mut file = std::fs::File::open(path).map_err(ReadFileError::from)?;
+
+        file.read_to_end(&mut buf).map_err(ReadFileError::from)?;
+        let mut vec = Vec::new();
+        vec.extend_from_slice(Sha256::digest(&buf).as_slice());
+        Ok(HexString::from_bytes(&vec))
+    }
+    */
+
+    /*
+    fn metadata_path(id: &str, root: &Path) -> PathBuf {
+        let mut path = PathBuf::from(root);
+        path.push(".metadata");
+        path.push(id.clone());
+        append_extension(&path, "json")
+    }
+
+    pub fn delete(&self) -> Result<(), FileError> {
+        let path = FileInfo::metadata_path(&self.id, &self.root);
+        remove_file(path).map_err(FileError::from)
+    }
+    */
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::store::{utils::FileCleanup, PathResolver};
+    use std::convert::TryFrom;
+
+    #[test]
+    fn it_saves_and_loads_metadata() {
+        let resolver = PathResolver::try_from("fixtures/1617654d-a588-4714-b4fa-e00ed0a8a607.png")
+            .expect("a valid path");
+        let _cleanup = FileCleanup(resolver.metadata_path());
+
+        let created = Utc::now();
+
+        let info = FileInfo {
+            size: 23777,
+            created,
+            file_type: "image/png".to_owned(),
+            hash: "abcdefg".to_owned(),
+        };
+        info.save(resolver.metadata_path()).unwrap();
+
+        let info_ = FileInfo::load(resolver.metadata_path()).unwrap();
+        assert_eq!(info_.size, 23777);
+        assert_eq!(info_.created, info.created);
+        assert_eq!(info_.file_type, "image/png");
+        assert_eq!(info_.hash, info.hash);
+    }
+}

file-service/src/store/mod.rs

@@ -0,0 +1,287 @@
+use std::{
+    convert::TryFrom,
+    ops::Deref,
+    path::{Path, PathBuf},
+};
+use thiserror::Error;
+use uuid::Uuid;
+
+mod file;
+mod fileinfo;
+mod thumbnail;
+pub mod utils;
+
+pub use file::File;
+pub use fileinfo::FileInfo;
+pub use thumbnail::Thumbnail;
+
+#[derive(Debug, Error)]
+pub enum WriteFileError {
+    #[error("root file path does not exist")]
+    RootNotFound,
+
+    #[error("permission denied")]
+    PermissionDenied,
+
+    #[error("invalid path")]
+    InvalidPath,
+
+    #[error("image conversion failed")]
+    ImageError(#[from] image::ImageError),
+
+    #[error("JSON error")]
+    JSONError(#[from] serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
+}
+
+#[derive(Debug, Error)]
+pub enum ReadFileError {
+    #[error("file not found")]
+    FileNotFound,
+
+    #[error("path is not a file")]
+    NotAFile,
+
+    #[error("permission denied")]
+    PermissionDenied,
+
+    #[error("invalid path")]
+    InvalidPath,
+
+    #[error("JSON error")]
+    JSONError(#[from] serde_json::error::Error),
+
+    #[error("IO error")]
+    IOError(#[from] std::io::Error),
+}
+
+#[derive(Debug, Error)]
+pub enum PathError {
+    #[error("path cannot be derived from input")]
+    InvalidPath,
+}
+
+#[derive(Clone, Debug)]
+pub struct PathResolver {
+    base: PathBuf,
+    id: String,
+    extension: String,
+}
+
+impl PathResolver {
+    fn new(base: &Path, id: &str, extension: &str) -> Self {
+        Self {
+            base: base.to_owned(),
+            id: id.to_owned(),
+            extension: extension.to_owned(),
+        }
+    }
+
+    fn file_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(self.id.clone());
+        path.set_extension(self.extension.clone());
+        path
+    }
+
+    fn metadata_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(self.id.clone());
+        path.set_extension("json");
+        path
+    }
+
+    fn thumbnail_path(&self) -> PathBuf {
+        let mut path = self.base.clone();
+        path.push(self.id.clone());
+        path.set_extension(format!("tn.{}", self.extension));
+        path
+    }
+}
+
+impl TryFrom<String> for PathResolver {
+    type Error = PathError;
+    fn try_from(s: String) -> Result<Self, Self::Error> {
+        PathResolver::try_from(s.as_str())
+    }
+}
+
+impl TryFrom<&str> for PathResolver {
+    type Error = PathError;
+    fn try_from(s: &str) -> Result<Self, Self::Error> {
+        let path = Path::new(s);
+        PathResolver::try_from(Path::new(s))
+    }
+}
+
+impl TryFrom<PathBuf> for PathResolver {
+    type Error = PathError;
+    fn try_from(path: PathBuf) -> Result<Self, Self::Error> {
+        PathResolver::try_from(path.as_path())
+    }
+}
+
+impl TryFrom<&Path> for PathResolver {
+    type Error = PathError;
+    fn try_from(path: &Path) -> Result<Self, Self::Error> {
+        Ok(Self {
+            base: path
+                .parent()
+                .map(|s| s.to_owned())
+                .ok_or(PathError::InvalidPath)?,
+            id: path
+                .file_stem()
+                .and_then(|s| s.to_str().map(|s| s.to_owned()))
+                .ok_or(PathError::InvalidPath)?,
+            extension: path
+                .extension()
+                .and_then(|s| s.to_str().map(|s| s.to_owned()))
+                .ok_or(PathError::InvalidPath)?,
+        })
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct FileId(String);
+
+impl From<String> for FileId {
+    fn from(s: String) -> Self {
+        Self(s)
+    }
+}
+
+impl From<&str> for FileId {
+    fn from(s: &str) -> Self {
+        Self(s.to_owned())
+    }
+}
+
+impl Deref for FileId {
+    type Target = String;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+pub trait FileRoot {
+    fn root(&self) -> PathBuf;
+}
+
+pub struct Context(PathBuf);
+
+impl FileRoot for Context {
+    fn root(&self) -> PathBuf {
+        self.0.clone()
+    }
+}
+
+pub struct Store {
+    files_root: PathBuf,
+}
+
+impl Store {
+    pub fn new(files_root: PathBuf) -> Self {
+        Self { files_root }
+    }
+
+    pub fn list_files(&self) -> Vec<Result<File, ReadFileError>> {
+        unimplemented!()
+    }
+
+    pub fn add_file(&mut self, filename: String, content: Vec<u8>) -> Result<File, WriteFileError> {
+        let context = Context(self.files_root.clone());
+        let mut file = File::new(filename, context)?;
+        file.set_content(content)?;
+        Ok(file)
+    }
+
+    pub fn delete_file(&mut self, id: String) -> Result<(), WriteFileError> {
+        /*
+        let f = File::open(&id, &self.files_root)?;
+        f.delete()
+        */
+        unimplemented!()
+    }
+
+    pub fn get_metadata(&self, id: String) -> Result<FileInfo, ReadFileError> {
+        // FileInfo::open(&id, &self.files_root)
+        unimplemented!()
+    }
+
+    pub fn get_file(&self, id: &str) -> Result<(FileInfo, std::fs::File), ReadFileError> {
+        /*
+        let f = File::open(&id, &self.files_root)?;
+        let info = f.info();
+        let stream = f.stream()?;
+        Ok((info, stream))
+        */
+        unimplemented!()
+    }
+
+    pub fn get_thumbnail(&self, id: &str) -> Result<(FileInfo, std::fs::File), ReadFileError> {
+        /*
+        let f = File::open(id, &self.files_root)?;
+        let stream = f.thumbnail().stream()?;
+        Ok((f.info(), stream))
+        */
+        unimplemented!()
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use crate::store::utils::FileCleanup;
+
+    use super::*;
+    use std::io::Read;
+
+    #[test]
+    fn paths() {
+        let resolver = PathResolver::try_from("path/82420255-d3c8-4d90-a582-f94be588c70c.png")
+            .expect("to have a valid path");
+        assert_eq!(
+            resolver.file_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.png")
+        );
+        assert_eq!(
+            resolver.metadata_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.json")
+        );
+        assert_eq!(
+            resolver.thumbnail_path(),
+            PathBuf::from("path/82420255-d3c8-4d90-a582-f94be588c70c.tn.png")
+        );
+    }
+
+    #[test]
+    fn adds_files() {
+        let mut buf = Vec::new();
+        let mut file = std::fs::File::open("fixtures/rawr.png").unwrap();
+        file.read_to_end(&mut buf).unwrap();
+
+        let mut store = Store::new(PathBuf::from("var/"));
+        let file_record = store.add_file("rawr.png".to_owned(), buf).unwrap();
+
+        let _file = FileCleanup(PathBuf::from(format!("var/{}", *file_record.id)));
+        let _md = FileCleanup(PathBuf::from(format!("var/{}.json", *file_record.id)));
+        let _tn = FileCleanup(PathBuf::from(format!("var/{}.tn", *file_record.id)));
+
+        assert!(PathBuf::from(format!("var/{}.png", *file_record.id)).exists());
+        assert!(PathBuf::from(format!("var/{}.png.json", *file_record.id)).exists());
+        assert!(PathBuf::from(format!("var/{}.png.tn", *file_record.id)).exists());
+    }
+
+    #[test]
+    fn sets_up_metadata_for_file() {}
+
+    #[test]
+    fn sets_up_thumbnail_for_file() {}
+
+    #[test]
+    fn deletes_associated_files() {}
+
+    #[test]
+    fn lists_files_in_the_db() {}
+}

file-service/src/store/thumbnail.rs

@@ -0,0 +1,84 @@
+use image::imageops::FilterType;
+use std::fs::remove_file;
+use std::path::{Path, PathBuf};
+
+use super::{ReadFileError, WriteFileError};
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Thumbnail {
+    pub path: PathBuf,
+}
+
+impl Thumbnail {
+    pub fn open(
+        origin_path: PathBuf,
+        thumbnail_path: PathBuf,
+    ) -> Result<Thumbnail, WriteFileError> {
+        let s = Thumbnail {
+            path: PathBuf::from(thumbnail_path),
+        };
+
+        if !s.path.exists() {
+            let img = image::open(&origin_path)?;
+            let tn = img.resize(640, 640, FilterType::Nearest);
+            tn.save(&s.path)?;
+        }
+
+        Ok(s)
+    }
+
+    /*
+    pub fn from_path(path: &Path) -> Result<Thumbnail, ReadFileError> {
+        let id = path
+            .file_name()
+            .map(|s| String::from(s.to_string_lossy()))
+            .ok_or(ReadFileError::NotAnImage(PathBuf::from(path)))?;
+
+        let path = path
+            .parent()
+            .ok_or(ReadFileError::FileNotFound(PathBuf::from(path)))?;
+
+        Thumbnail::open(&id, root)
+    }
+    */
+
+    /*
+    fn thumbnail_path(id: &str, root: &Path) -> PathBuf {
+        let mut path = PathBuf::from(root);
+        path.push(".thumbnails");
+        path.push(id.clone());
+        path
+    }
+    */
+
+    pub fn stream(&self) -> Result<std::fs::File, ReadFileError> {
+        std::fs::File::open(self.path.clone()).map_err(|err| {
+            if err.kind() == std::io::ErrorKind::NotFound {
+                ReadFileError::FileNotFound
+            } else {
+                ReadFileError::from(err)
+            }
+        })
+    }
+
+    pub fn delete(self) -> Result<(), WriteFileError> {
+        remove_file(self.path).map_err(WriteFileError::from)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::store::utils::FileCleanup;
+
+    #[test]
+    fn it_creates_a_thumbnail_if_one_does_not_exist() {
+        let _ = FileCleanup(PathBuf::from("var/rawr.tn.png"));
+        let _ = Thumbnail::open(
+            PathBuf::from("fixtures/rawr.png"),
+            PathBuf::from("var/rawr.tn.png"),
+        )
+        .expect("thumbnail open must work");
+        assert!(Path::new("var/rawr.tn.png").is_file());
+    }
+}