From 1c726bcb321d03ac74d1bd646b690991ba356fd8 Mon Sep 17 00:00:00 2001
From: Chris Burgess <9002722+cgbur@users.noreply.github.com>
Date: Tue, 26 Sep 2023 17:16:40 -0400
Subject: [PATCH] std.http: add identity to content encodings (#16493)

Some servers will respond with the identity encoding, meaning no
encoding, especially when responding to range-get requests. Adding the
identity encoding stops the header parser from failing when it
encounters this.
---
 lib/std/http.zig        | 1 +
 lib/std/http/Client.zig | 1 +
 lib/std/http/Server.zig | 1 +
 3 files changed, 3 insertions(+)

diff --git a/lib/std/http.zig b/lib/std/http.zig
index 424cbc8bb7..12dc4b89cd 100644
--- a/lib/std/http.zig
+++ b/lib/std/http.zig
@@ -285,6 +285,7 @@ pub const TransferEncoding = enum {
 };
 
 pub const ContentEncoding = enum {
+    identity,
     compress,
     deflate,
     gzip,
diff --git a/lib/std/http/Client.zig b/lib/std/http/Client.zig
index ed7c24e931..bfb96f2cfc 100644
--- a/lib/std/http/Client.zig
+++ b/lib/std/http/Client.zig
@@ -762,6 +762,7 @@ pub const Request = struct {
                 req.response.skip = false;
                 if (!req.response.parser.done) {
                     if (req.response.transfer_compression) |tc| switch (tc) {
+                        .identity => req.response.compression = .none,
                         .compress => return error.CompressionNotSupported,
                         .deflate => req.response.compression = .{
                             .deflate = std.compress.zlib.decompressStream(req.client.allocator, req.transferReader()) catch return error.CompressionInitializationFailed,
diff --git a/lib/std/http/Server.zig b/lib/std/http/Server.zig
index c493cc1bab..04bdfe39b7 100644
--- a/lib/std/http/Server.zig
+++ b/lib/std/http/Server.zig
@@ -528,6 +528,7 @@ pub const Response = struct {
 
         if (!res.request.parser.done) {
             if (res.request.transfer_compression) |tc| switch (tc) {
+                .identity => res.request.compression = .none,
                 .compress => return error.CompressionNotSupported,
                 .deflate => res.request.compression = .{
                     .deflate = std.compress.zlib.decompressStream(res.allocator, res.transferReader()) catch return error.CompressionInitializationFailed,