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nautilus_network/http/
error.rs

1// -------------------------------------------------------------------------------------------------
2//  Copyright (C) 2015-2026 Nautech Systems Pty Ltd. All rights reserved.
3//  https://nautechsystems.io
4//
5//  Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
6//  You may not use this file except in compliance with the License.
7//  You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
8//
9//  Unless required by applicable law or agreed to in writing, software
10//  distributed under the License is distributed on an "AS IS" BASIS,
11//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12//  See the License for the specific language governing permissions and
13//  limitations under the License.
14// -------------------------------------------------------------------------------------------------
15
16//! HTTP client error types.
17
18use std::error::Error;
19
20/// Errors returned by the HTTP client.
21///
22/// Includes generic transport errors, timeouts, and proxy configuration errors.
23#[derive(thiserror::Error, Debug)]
24pub enum HttpClientError {
25    #[error("HTTP error occurred: {0}")]
26    Error(String),
27
28    #[error("HTTP request timed out: {0}")]
29    TimeoutError(String),
30
31    #[error("Invalid proxy URL: {0}")]
32    InvalidProxy(String),
33
34    #[error("Failed to build HTTP client: {0}")]
35    ClientBuildError(String),
36}
37
38impl From<reqwest::Error> for HttpClientError {
39    fn from(source: reqwest::Error) -> Self {
40        // reqwest's Display omits the actionable cause (DNS, refused, TLS),
41        // which lives in the source chain, so walk and append it.
42        let mut message = source.to_string();
43        let mut cause: Option<&(dyn std::error::Error + 'static)> = source.source();
44        while let Some(err) = cause {
45            message.push_str(": ");
46            message.push_str(&err.to_string());
47            cause = err.source();
48        }
49
50        if source.is_timeout() {
51            Self::TimeoutError(message)
52        } else {
53            Self::Error(message)
54        }
55    }
56}
57
58impl From<String> for HttpClientError {
59    fn from(value: String) -> Self {
60        Self::Error(value)
61    }
62}