Improve handling of Transfer-Encoding errors #46
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th4s
approved these changes
Nov 25, 2024
sinui0
requested changes
Nov 25, 2024
| @@ -222,12 +222,23 @@ fn request_body_len(request: &Request) -> Result<usize, ParseError> { | |||
| // the Transfer-Encoding overrides the Content-Length | |||
| if request | |||
| .headers_with_name("Transfer-Encoding") | |||
| .next() | |||
| .is_some() | |||
| .any(|h| { | |||
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It would be sufficient to just handle the first header with this key, ie
if let Some(header) = request.headers_with_name("Transfer-Encoding").first()
| )) | ||
| let bad_values = request | ||
| .headers_with_name("Transfer-Encoding") | ||
| .map(|h| std::str::from_utf8(h.value.0.as_bytes()).unwrap_or("")) |
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unwrap_or("") will be misleading if the header value is not value utf8. Better to return a parse error indicating that.
Comment on lines
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| "Transfer-Encoding other than identity not supported yet: {:?}", | ||
| bad_values |
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Suggested change
| "Transfer-Encoding other than identity not supported yet: {:?}", | |
| bad_values | |
| "Transfer-Encoding other than identity not supported yet: {bad_values}" |
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bad_values is String which implements Display, so no need to format using Debug
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Transfer-Encoding errors are currently very opaque. This change updates the logic to allow for
Transfer-Encoding: identity(the effective default), and add the incorrect values to the error message to make it easier to troubleshoot bad Transfer-Encoding values.An example of the new error message:
parsing error: Transfer-Encoding other than identity not supported yet: "chunked"