d88b13786d
Previously the Transport had good support for 100 Continue responses, but other 1xx informational responses were returned as-is. But per https://tools.ietf.org/html/rfc7231#section-6.2: > A client MUST be able to parse one or more 1xx responses received > prior to a final response, even if the client does not expect one. A > user agent MAY ignore unexpected 1xx responses. We weren't doing that. Instead, we were returning any 1xx that wasn't 100 as the final result. With this change we instead loop over up to 5 (arbitrary) 1xx responses until we find the final one, returning an error if there's more than 5. The limit is just there to guard against malicious servers and to have _some_ limit. By default we ignore the 1xx responses, unless the user defines the new httptrace.ClientTrace.Got1xxResponse hook, which is an expanded version of the previous ClientTrace.Got100Continue. Still remaining: * httputil.ReverseProxy work. (From rfc7231#section-6.2: "A proxy MUST forward 1xx responses unless the proxy itself requested the generation of the 1xx response."). Which would require: * Support for an http.Handler to generate 1xx informational responses. Those can happen later. Fixing the Transport to be resilient to others using 1xx in the future without negotiation (as is being discussed with HTTP status 103) is most important for now. Updates #17739 Change-Id: I55aae8cd978164643fccb9862cd60a230e430486 Reviewed-on: https://go-review.googlesource.com/116855 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
||
|---|---|---|
| .github | ||
| api | ||
| doc | ||
| lib/time | ||
| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS | ||
| favicon.ico | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| robots.txt | ||
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Download and Install
Binary Distributions
Official binary distributions are available at https://golang.org/dl/.
After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.
Install From Source
If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.
Contributing
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.