actix-form-data/src/lib.rs
2018-04-30 15:24:01 -05:00

116 lines
3.4 KiB
Rust

/*
* This file is part of Actix Form Data.
*
* Copyright © 2018 Riley Trautman
*
* Actix Form Data is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Actix Form Data is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Actix Form Data. If not, see <http://www.gnu.org/licenses/>.
*/
//! # Actix Form Data
//! A library for retrieving form data from Actix Web's multipart streams. It can stream
//! uploaded files onto the filesystem (its main purpose), but it can also parse associated
//! form data.
//!
//! # Example
//!
//!```rust
//! extern crate actix_web;
//! extern crate form_data;
//! extern crate futures;
//! extern crate mime;
//!
//! use std::path::PathBuf;
//!
//! use actix_web::{http, server, App, AsyncResponder, HttpMessage, HttpRequest, HttpResponse, State};
//! use form_data::{handle_multipart, Error, Field, FilenameGenerator, Form};
//! use futures::Future;
//!
//! struct Gen;
//!
//! impl FilenameGenerator for Gen {
//! fn next_filename(&self, _: &mime::Mime) -> Option<PathBuf> {
//! let mut p = PathBuf::new();
//! p.push("examples/filename.png");
//! Some(p)
//! }
//! }
//!
//! fn upload(
//! req: HttpRequest<Form>,
//! state: State<Form>,
//! ) -> Box<Future<Item = HttpResponse, Error = Error>> {
//! handle_multipart(req.multipart(), state.clone())
//! .map(|uploaded_content| {
//! println!("Uploaded Content: {:?}", uploaded_content);
//! HttpResponse::Created().finish()
//! })
//! .responder()
//! }
//!
//! fn main() {
//! let form = Form::new()
//! .field("Hey", Field::text())
//! .field(
//! "Hi",
//! Field::map()
//! .field("One", Field::int())
//! .field("Two", Field::float())
//! .finalize(),
//! )
//! .field("files", Field::array(Field::file(Gen)));
//!
//! println!("{:?}", form);
//!
//! server::new(move || {
//! App::with_state(form.clone())
//! .resource("/upload", |r| r.method(http::Method::POST).with2(upload))
//! }).bind("127.0.0.1:8080")
//! .unwrap();
//! // .run()
//! }
//!```
extern crate actix_web;
extern crate bytes;
#[macro_use]
extern crate failure;
extern crate futures;
extern crate futures_cpupool;
extern crate futures_fs;
extern crate http;
#[macro_use]
extern crate log;
extern crate mime;
#[cfg(feature = "with-serde")]
extern crate serde;
#[cfg(feature = "with-serde")]
#[macro_use]
extern crate serde_derive;
use std::path::PathBuf;
mod error;
mod types;
mod upload;
pub use self::error::Error;
pub use self::types::*;
pub use self::upload::handle_multipart;
/// A trait for types that produce filenames for uploade files
///
/// Currently, the mime type provided to the `next_filename` method is guessed from the uploaded
/// file's original filename, so relying on this to be 100% accurate is probably a bad idea.
pub trait FilenameGenerator: Send + Sync {
fn next_filename(&self, &mime::Mime) -> Option<PathBuf>;
}