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
|
use actix_web::{
dev, error,
http::header::{ContentDisposition, LOCATION},
multipart, Error, FutureResponse, HttpMessage, HttpRequest, HttpResponse,
};
use futures::{future, Future, Stream};
use std::{
io::Write,
path::{Component, PathBuf},
};
pub fn save_file(
field: multipart::Field<dev::Payload>,
file_path: PathBuf,
) -> Box<Future<Item = i64, Error = Error>> {
let mut file = match std::fs::File::create(file_path) {
Ok(file) => file,
Err(e) => return Box::new(future::err(error::ErrorInternalServerError(e))),
};
Box::new(
field
.fold(0i64, move |acc, bytes| {
let rt = file
.write_all(bytes.as_ref())
.map(|_| acc + bytes.len() as i64)
.map_err(|e| error::MultipartError::Payload(error::PayloadError::Io(e)));
future::result(rt)
})
.map_err(|e| error::ErrorInternalServerError(e)),
)
}
pub fn handle_multipart(
item: multipart::MultipartItem<dev::Payload>,
mut file_path: PathBuf,
) -> Box<Stream<Item = i64, Error = Error>> {
match item {
multipart::MultipartItem::Field(field) => {
let err = || Box::new(future::err(error::ContentTypeError::ParseError.into()));
let filename = field
.headers()
.get("content-disposition")
.ok_or(err())
.and_then(|cd| ContentDisposition::from_raw(cd).map_err(|_| err()))
.and_then(|content_disposition| {
content_disposition
.get_filename()
.ok_or(err())
.map(|cd| String::from(cd))
});
match filename {
Ok(f) => {
file_path = file_path.join(f);
// TODO should I allow overriding existing files?
Box::new(save_file(field, file_path).into_stream())
}
Err(e) => Box::new(e.into_stream()),
}
}
multipart::MultipartItem::Nested(mp) => Box::new(
mp.map_err(error::ErrorInternalServerError)
.map(move |item| handle_multipart(item, file_path.clone()))
.flatten(),
),
}
}
pub fn upload_file(req: &HttpRequest<crate::MiniserveConfig>) -> FutureResponse<HttpResponse> {
if !req.query().contains_key("path") {
return Box::new(future::ok(
HttpResponse::BadRequest().body("Unspecified parameter path"),
));
}
// server root path should be valid so we can unwrap it
let app_root_dir = req.state().path.clone().canonicalize().unwrap();
let path_str = req.query()["path"].clone();
let mut path = PathBuf::from(path_str.clone());
if let Ok(stripped_path) = path.strip_prefix(Component::RootDir) {
path = stripped_path.to_owned();
}
// if target path is under app root directory save file
let target_dir = match &app_root_dir.clone().join(path).canonicalize() {
Ok(path) if path.starts_with(&app_root_dir) => path.clone(),
_ => return Box::new(future::ok(HttpResponse::BadRequest().body("Invalid path"))),
};
Box::new(
req.multipart()
.map_err(error::ErrorInternalServerError)
.map(move |item| handle_multipart(item, target_dir.clone()))
.flatten()
.collect()
.map(|_| {
HttpResponse::TemporaryRedirect()
.header(LOCATION, path_str)
.finish()
})
.map_err(|e| e),
)
}
|
