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
|
//! Declare dirclient-specific errors.
use thiserror::Error;
use tor_rtcompat::TimeoutError;
/// An error originating from the tor-dirclient crate.
#[derive(Error, Debug)]
#[non_exhaustive]
pub enum Error {
/// We received an object with a suspiciously good compression ratio
#[error("possible compression bomb")]
CompressionBomb,
/// The directory cache took too long to reply to us.
#[error("directory timed out")]
DirTimeout,
/// We got an EOF before we were done with the headers.
#[error("truncated HTTP headers")]
TruncatedHeaders,
/// Got an HTTP status other than 200
#[error("unexpected HTTP status {0:?}")]
HttpStatus(Option<u16>),
/// Received a response that was longer than we expected.
#[error("response too long; gave up after {0} bytes")]
ResponseTooLong(usize),
/// Data received was not UTF-8 encoded.
#[error("Couldn't decode data as UTF-8.")]
Utf8Encoding(#[from] std::string::FromUtf8Error),
/// Io error while reading on connection
#[error("IO error: {0}")]
IoError(#[from] std::io::Error),
/// A protocol error while launching a stream
#[error("Protocol error while launching a stream: {0}")]
Proto(#[from] tor_proto::Error),
/// Error while getting a circuit
#[error("Error while getting a circuit {0}")]
CircMgr(#[from] tor_circmgr::Error),
/// Error when parsing http
#[error("Couldn't parse HTTP headers")]
HttparseError(#[from] httparse::Error),
/// Error while creating http request
#[error("Couldn't create HTTP request")]
HttpError(#[from] http::Error),
/// Unrecognized content-encoding
#[error("Unrecognized content encoding: {0:?}")]
ContentEncoding(String),
}
impl From<TimeoutError> for Error {
fn from(_: TimeoutError) -> Self {
Error::DirTimeout
}
}
impl Error {
/// Return true if this error means that the circuit shouldn't be used
/// for any more directory requests.
pub fn should_retire_circ(&self) -> bool {
// TODO: probably this is too aggressive, and we should
// actually _not_ dump the circuit under all circumstances.
true
}
}
|
