aboutsummaryrefslogtreecommitdiffstats
path: root/src/main.rs
blob: 2258fac8b37463b860950a26c84fd2efa2d5f2de (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
extern crate actix;
extern crate actix_web;
extern crate simplelog;

#[macro_use]
extern crate clap;

use actix_web::http::{StatusCode, header};
use actix_web::{server, App, fs, middleware, HttpRequest, HttpResponse, HttpMessage, Result};
use actix_web::middleware::{Middleware, Response};
use simplelog::{TermLogger, LevelFilter, Config};
use std::path::PathBuf;
use std::net::{IpAddr, Ipv4Addr};

#[derive(Clone)]
pub struct MiniserveConfig {
    verbose: bool,
    path: std::path::PathBuf,
    port: u16,
    interface: IpAddr,
    auth: Option<String>,
}

fn is_valid_path(path: String) -> Result<(), String> {
    let path_to_check = PathBuf::from(path);
    if path_to_check.is_file() || path_to_check.is_dir() {
        return Ok(());
    }
    Err(String::from("Path either doesn't exist or is not a regular file or a directory"))
}

fn is_valid_port(port: String) -> Result<(), String> {
    port.parse::<u16>().and(Ok(())).or_else(|e| Err(e.to_string()))
}

fn is_valid_interface(interface: String) -> Result<(), String> {
    interface.parse::<IpAddr>().and(Ok(())).or_else(|e| Err(e.to_string()))
}

fn is_valid_auth(auth: String) -> Result<(), String> {
    auth.find(':').ok_or("Auth is not in form user:password".to_owned()).map(|_| ())
}

pub fn parse_args() -> MiniserveConfig {
    use clap::{App, Arg};

    let matches = App::new(crate_name!())
        .version(crate_version!())
        .author(crate_authors!())
        .about(crate_description!())
        .arg(
            Arg::with_name("verbose")
                .short("v")
                .long("verbose")
                .help("Be verbose"),
        )
        .arg(
            Arg::with_name("PATH")
				.required(true)
                .validator(is_valid_path)
                .help("Which path to serve"),
        )
        .arg(
            Arg::with_name("port")
                .short("p")
                .long("port")
                .help("Port to use")
                .validator(is_valid_port)
                .required(false)
                .default_value("8080")
                .takes_value(true),
        )
        .arg(
            Arg::with_name("interface")
                .short("i")
                .long("if")
                .help("Interface to listen on")
                .validator(is_valid_interface)
                .required(false)
                .default_value("0.0.0.0")
                .takes_value(true),
        )
        .arg(
            Arg::with_name("auth")
                .short("a")
                .long("auth")
                .validator(is_valid_auth)
                .help("Set authentication (user:password)")
                .takes_value(true),
        )
        .get_matches();

    let verbose = matches.is_present("verbose");
    let path = matches.value_of("PATH").unwrap();
    let port = matches.value_of("port").unwrap().parse().unwrap();
    let interface = matches.value_of("interface").unwrap().parse().unwrap();
    let auth = matches.value_of("auth").map(|a| a.to_owned());

    MiniserveConfig {
        verbose,
        path: PathBuf::from(path),
        port,
        interface,
        auth,
    }
}

fn file_handler(req: HttpRequest<MiniserveConfig>) -> Result<fs::NamedFile> {
    let path = &req.state().path;
    Ok(fs::NamedFile::open(path)?)
}

fn configure_app(app: App<MiniserveConfig>) -> App<MiniserveConfig> {
    let s = {
        let path = &app.state().path;
        if path.is_file() {
            None
        } else {
            Some(fs::StaticFiles::new(path).show_files_listing())
        }
    };

    if let Some(s) = s {
        app.handler("/", s)
    } else {
        app.resource("/", |r| r.f(file_handler))
    }
}

struct Auth;

impl Middleware<MiniserveConfig> for Auth {
    fn response(&self, req: &mut HttpRequest<MiniserveConfig>, mut resp: HttpResponse) -> Result<Response> {
        let passphrase = &req.state().auth;
        if passphrase.is_some() {
            println!("{:?}", passphrase);
            println!("{:?}", req.headers().get(header::AUTHORIZATION));
        }
        resp.headers_mut().insert(header::WWW_AUTHENTICATE, header::HeaderValue::from_static("Basic realm=\"lol\""));
        *resp.status_mut() = StatusCode::UNAUTHORIZED;
        Ok(Response::Done(resp))
    }
}

fn main() {
    let miniserve_config = parse_args();

    if miniserve_config.verbose {
        let _ = TermLogger::init(LevelFilter::Info, Config::default());
    }
    let sys = actix::System::new("miniserve");

    let inside_config = miniserve_config.clone();
	server::new(
		move || App::with_state(inside_config.clone())
            .middleware(Auth)
            .middleware(middleware::Logger::default())
            .configure(configure_app))
		.bind(format!("{}:{}", &miniserve_config.interface, miniserve_config.port)).expect("Couldn't bind server")
		.shutdown_timeout(0)
		.start();

    // If the interface is 0.0.0.0, we'll change it to localhost so that clicking the link will
    // also work on Windows. Why can't Windows interpret 0.0.0.0?
    let interface =  if miniserve_config.interface == IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)) {
        String::from("localhost")
    } else {
        format!("{}", miniserve_config.interface)
    };

    let canon_path = miniserve_config.path.canonicalize().unwrap();
    println!("miniserve is serving your files at http://{interface}:{port}", interface=interface, port=miniserve_config.port);
    println!("Currently serving path {path}", path=canon_path.to_string_lossy());
    println!("Quit by pressing CTRL-C");

	let _ = sys.run();
}