bin/src/main.rs
Gunwant Jain 855a0faec2 routes: implement syntax highlighting for plaintext files
Signed-off-by: Gunwant Jain <mail@wantguns.dev>
2020-12-29 19:35:21 +05:30

90 lines
2.2 KiB
Rust

#![feature(proc_macro_hygiene, decl_macro)]
#[macro_use] extern crate rocket;
extern crate tree_magic;
use std::io::prelude::*;
use std::collections::HashMap;
use std::path::Path;
use std::fs::File;
use rocket::Data;
use rocket_contrib::templates::Template;
mod paste_id;
use paste_id::PasteId;
#[get("/p/<id>")]
fn pretty_retrieve(id: PasteId) -> Option<Template> {
let filename = format!("upload/{id}", id = id);
let filepath = Path::new(&filename);
let mut file = File::open(&filename).unwrap();
let mut contents = String::new();
file.read_to_string(&mut contents).unwrap();
let theme = String::from(".");
let mut map = HashMap::new();
map.insert("title", id.to_string());
map.insert("theme", theme);
map.insert("code", contents);
let rendered = Template::render("pretty", &map);
match tree_magic::from_filepath(filepath).as_str() {
"text/plain" => Some(rendered),
_ => Err("does not have the MIME type of a plaintext file").ok()
}
}
#[get("/<id>")]
fn retrieve(id: PasteId) -> Option<File> {
let filename = format!("upload/{id}", id = id);
File::open(&filename).ok()
}
#[post("/", data = "<paste>")]
fn upload(paste: Data) -> Result<String, std::io::Error> {
let id = PasteId::new(4);
let filename = format!("upload/{id}", id = id);
let filepath = Path::new(&filename);
paste.stream_to_file(filepath)?;
let url = match tree_magic::from_filepath(filepath).as_str() {
"text/plain" => format!("{host}/p/{id}\n", host = "http://localhost:8000", id = id),
_ => format!("{host}/{id}\n", host = "http://localhost:8000", id = id),
};
Ok(url)
}
#[get("/")]
fn index() -> &'static str {
"\
USAGE
=====
POST /
accepts raw data in the body of the request and responds with a URL
of a page containing the body's content
GET /<id>
retrieves the content for the paste with id `<id>`
GET /p/<id>
retrieves the content for the paste with id `<id>`, with syntax highlighting
"
}
fn main() {
rocket::ignite()
.mount("/", routes![index, upload, retrieve, pretty_retrieve])
.attach(Template::fairing())
.launch();
}