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authorMorris Jobke <hey@morrisjobke.de>2019-03-08 18:36:56 +0100
committerGitHub <noreply@github.com>2019-03-08 18:36:56 +0100
commitc04c1da4c840552c946e6e475c3d754cc557cb83 (patch)
treee16a7da2d90dbc4d30fddb3ea47d249eeb06d252 /l10n/en_GB.js
parente64ee7ed5fc0fa8f1f6197e32ef9469d8f29984e (diff)
parent98028b4f513330afb4ab807d8d6a009fc33a5ff6 (diff)
Merge pull request #403 from nextcloud/version-bump13.1.0
Release 13.1.0
Diffstat (limited to 'l10n/en_GB.js')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 17:07:04 +0000
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#[macro_use] extern crate log;

mod config;
mod purge;

use config::CONFIG;
use std::convert::Infallible;
use std::fs;
use std::fs::{OpenOptions, File};
use std::io;
use std::io::Write;
use std::path::Path;
use std::net::SocketAddr;
use std::iter;
use std::error::Error;
use std::time::Duration;
use std::os::unix::io::AsRawFd;
use std::thread;
use tokio;
use tokio_util::codec::{BytesCodec, FramedRead};
use futures::stream::StreamExt;
use rand::{Rng, thread_rng};
use rand::distributions::Alphanumeric;
use hyper::{Body, Method, Request, Response, Server};
use hyper::service::{make_service_fn, service_fn};
use hyper::header::HeaderValue;
use hyper::header;

static INDEX_HTML: &'static [u8] = include_bytes!("../web/index.html");
static VIEW_HTML: &'static [u8] = include_bytes!("../web/view.html");
static FAVICON_ICO: &'static [u8] = include_bytes!("../web/favicon.ico");
static VENDOR_HIGHLIGHT_JS: &'static [u8] = include_bytes!("../web/vendor/highlight.min.js");
static VENDOR_HIGHLIGHT_CSS: &'static [u8] = include_bytes!("../web/vendor/highlight.min.css");
static ERR_404_HTML: &'static [u8] = include_bytes!("../web/404.html");
static ERR_413_HTML: &'static [u8] = include_bytes!("../web/413.html");
static ERR_500_HTML: &'static [u8] = include_bytes!("../web/500.html");

fn is_illegal_name(name: &str) -> bool {
    return
        name == "index" ||
        name == "favicon" ||
        name == "vendor";
}

fn create_random_file(dir: &str) -> io::Result<(File, String)> {
    let mut len = 3;
    let mut rng = thread_rng();
    loop {
        let name: String = iter::repeat(())
            .map(|()| rng.sample(Alphanumeric))
            .take(len)
            .collect();
        if is_illegal_name(&name) {
            continue;
        }

        let pathbuf = Path::new(dir).join(&name);
        let path = pathbuf.to_string_lossy().to_string();
        len += 1;

        let file = OpenOptions::new()
            .create_new(true).write(true).open(&path);

        match file {
            Err(err) => match err.kind() {
                io::ErrorKind::AlreadyExists => continue,
                _ => return Err(err),
            },
            Ok(file) => return Ok((file, name)),
        };
    }
}

fn delete_file(dir: &str, name: &str) {
    let pathbuf = Path::new(dir).join(name);
    if let Err(err) = fs::remove_file(pathbuf) {
        error!("Failed to remove {}/{}: {}", dir, name, err);
    }
}

fn is_plain_text(ext: &str, mime: Option<&str>) -> bool {
    fn mime_is_plain_text(mime: &str) -> bool {
        return
            mime.starts_with("text/") || (
                mime.starts_with("application/") &&
                mime != "application/octet-stream");
    }

    match ext {
        "auto" => true,
        _ => match mime {
            None => false,
            Some(mime) => mime_is_plain_text(mime),
        },
    }
}

fn request_prefers_raw(req: &Request<Body>) -> bool {
    let headers = req.headers();
    let accept = headers.get(header::ACCEPT);
    if let None = accept {
        return true;
    }

    let accept = accept.unwrap().to_str();
    if let Err(_err) = accept {
        return true;
    }

    let accept = accept.unwrap();
    for s in accept.split(",") {
        match &s.trim().to_ascii_lowercase() as &str {
            "text/html" => return false, // Prefers HTML
            "*/*" => return true, // Prefers whatever before HTML
            "text/plain" => return false, // Prefers text/plain before HTML
            _ => (),
        }
    }

    return false;
}

fn respond_404() -> Result<Response<Body>, Infallible> {
    Ok(Response::builder().status(404)
       .header(header::CONTENT_TYPE, "text/html")
       .body(Body::from(ERR_404_HTML)).unwrap())
}

fn respond_413() -> Result<Response<Body>, Infallible> {
    Ok(Response::builder().status(413)
       .header(header::CONTENT_TYPE, "text/html")
       .body(Body::from(ERR_413_HTML)).unwrap())
}

fn respond_500() -> Result<Response<Body>, Infallible> {
    Ok(Response::builder().status(500)
       .header(header::CONTENT_TYPE, "text/html")
       .body(Body::from(ERR_500_HTML)).unwrap())
}

async fn on_get(req: Request<Body>) -> Result<Response<Body>, Box<dyn Error>> {
    let path = req.uri().path();
    if path == "/" || path == "/index.html" {
        return Ok(Response::builder()
            .header(header::CONTENT_TYPE, "text/html")
            .body(Body::from(INDEX_HTML))?);
    } else if path == "/favicon.ico" {
        return Ok(Response::builder()
            .header(header::CONTENT_TYPE, "image/x-icon")
            .body(Body::from(FAVICON_ICO))?);
    } else if path == "/vendor/highlight.js" {
        return Ok(Response::builder()
            .header(header::CONTENT_TYPE, "application/javascript")
            .body(Body::from(VENDOR_HIGHLIGHT_JS))?);
    } else if path == "/vendor/highlight.css" {
        return Ok(Response::builder()
            .header(header::CONTENT_TYPE, "text/css")
            .body(Body::from(VENDOR_HIGHLIGHT_CSS))?);
    }

    let name = &path[1..];

    // Two slashes after each other is probably just an error
    let firstchar = name.chars().next();
    if firstchar.is_none() || firstchar.unwrap() == '/' {
        return Ok(respond_404()?);
    }

    let extension = match &Path::new(path).extension() {
        Some(ext) => Some(ext.to_string_lossy()),
        None => None,
    };

    // If we have an extension, we need to serve with the appropriate Content-Type
    let mime = extension.as_ref().and_then(|ext| mime_guess::from_ext(ext).first_raw());

    // /ID.<extension> serves a page with javascript which does syntax highlighting,
    // if the extension/mime is a type associated with a plain-text file type
    // (and if the request is from a device which prefers HTML to plain text)
    if is_plain_text(&extension.unwrap_or(std::borrow::Cow::Borrowed("")), mime) {
        if !request_prefers_raw(&req) {
            return Ok(Response::builder()
                .header(header::CONTENT_TYPE, "text/html")
                .body(Body::from(VIEW_HTML))?);
        }
    }

    // Serve the actual file
    let mut pathbuf = Path::new(&CONFIG.data as &str).join(&name);
    pathbuf.set_extension("");
    let file = tokio::fs::File::open(&pathbuf).await;
    match file {
        Err(err) => {
            error!("Couldn't open {}: {}", pathbuf.display(), err);
            return Ok(respond_404()?);
        },
        Ok(file) => {
            let meta = file.metadata().await?;

            // Update access time (to keep track of the latest access)
            // Don't change atime, because I don't want to use a value which
            // is likely to be updated by programs other than coffeepaste
            purge::update_access(
                file.as_raw_fd(),
                meta.modified()?)?;

            // Create a stream + body for the file
            let stream = FramedRead::new(file, BytesCodec::new());
            let body = Body::wrap_stream(stream);
            let mut resp = Response::new