This adds a source field to keep track of upstream errors and allow
backtraces, plus a URL field to indicate what URL an error was
associated with.
The enum variants we used to use for Error are now part of a new
ErrorKind type. For convenience within ureq, ErrorKinds can be turned
into an Error with `.new()` or `.msg("some additional information")`.
Error acts as a builder, so additional information can be added after
initial construction. For instance, we return a DnsFailed error when
name resolution fails. When that error bubbles up to Request's
`do_call`, Request adds the URL.
Fixes #232.
56 lines
1.5 KiB
Rust
56 lines
1.5 KiB
Rust
use crate::error::Error;
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use crate::stream::Stream;
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use crate::unit::Unit;
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use once_cell::sync::Lazy;
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use std::collections::HashMap;
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use std::io::{Cursor, Write};
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use std::sync::{Arc, Mutex};
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mod agent_test;
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mod body_read;
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mod body_send;
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mod query_string;
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mod range;
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mod redirect;
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mod simple;
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mod timeout;
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type RequestHandler = dyn Fn(&Unit) -> Result<Stream, Error> + Send + 'static;
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pub(crate) static TEST_HANDLERS: Lazy<Arc<Mutex<HashMap<String, Box<RequestHandler>>>>> =
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Lazy::new(|| Arc::new(Mutex::new(HashMap::new())));
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pub(crate) fn set_handler<H>(path: &str, handler: H)
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where
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H: Fn(&Unit) -> Result<Stream, Error> + Send + 'static,
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{
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let mut handlers = TEST_HANDLERS.lock().unwrap();
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handlers.insert(path.to_string(), Box::new(handler));
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}
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#[allow(clippy::write_with_newline)]
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pub fn make_response(
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status: u16,
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status_text: &str,
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headers: Vec<&str>,
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mut body: Vec<u8>,
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) -> Result<Stream, Error> {
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let mut buf: Vec<u8> = vec![];
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write!(&mut buf, "HTTP/1.1 {} {}\r\n", status, status_text).ok();
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for hstr in headers.iter() {
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write!(&mut buf, "{}\r\n", hstr).ok();
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}
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write!(&mut buf, "\r\n").ok();
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buf.append(&mut body);
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let cursor = Cursor::new(buf);
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let write: Vec<u8> = vec![];
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Ok(Stream::Test(Box::new(cursor), write))
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}
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pub(crate) fn resolve_handler(unit: &Unit) -> Result<Stream, Error> {
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let mut handlers = TEST_HANDLERS.lock().unwrap();
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let path = unit.url.path();
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let handler = handlers.remove(path).unwrap();
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handler(unit)
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}
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