envoyproxy/envoy

Need 3XX Location URL rewrite feature

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#12,591 opened on Aug 11, 2020

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area/httphelp wanted

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Description

Title:

Description: We use an encode filter to rewrite location URL today in eBay traffic engineering, but this looks like a feature that should be supported from upstream Envoy side.

We are using Envoy 1.13. Is this feature already available in master? Is it required upstream?

What we are looking for is:

  1. Upstream sends some location header and 302.
  2. Envoy has an option for the route where it can rewrite the location header to a different value.

Contributor guide

Research direction
Implement a new filter or modify existing redirect handling to rewrite the Location header on 3xx responses. Look at Envoy's header manipulation capabilities, specifically the `response headers to add` or a custom filter. Consider adding a route specific option to rewrite the Location header on redirect responses.
Tech stack
cpp
Domain
backendapi
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
C++
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
25