From 4364d2348fc323a9fe2d80f492414cb59af0527b Mon Sep 17 00:00:00 2001
From: Richard Whitehouse <github@richardwhiuk.com>
Date: Sun, 29 Oct 2017 15:40:25 +0000
Subject: [PATCH] Support Content-Encoding header

---
 src/codec.rs  |  4 ++--
 src/parser.rs | 11 +++++++++--
 src/types.rs  |  3 +++
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/codec.rs b/src/codec.rs
index dedd02b..1ec9c14 100644
--- a/src/codec.rs
+++ b/src/codec.rs
@@ -432,8 +432,8 @@ mod tests {
                            MESSAGE\r\nAuthentication-Info:qop=auth\r\nAuthorization:Digest \
                            username=\"Alice\"\r\nCall-ID:f81d4fae-7dec-11d0-a765-00a0c91e6bf6@foo.\
                            bar.com\r\nCall-Info:<http://wwww.example.com/alice/photo.jpg>;\
-                           purpose=icon\r\nContact:*\r\nContent-Disposition:session\r\nVia: \
-                           localhost\r\n\r\n")
+                           purpose=icon\r\nContact:*\r\nContent-Disposition:\
+                           session\r\nContent-Encoding:gzip\r\nVia: localhost\r\n\r\n")
         });
 
         let finished = request.and_then(|(socket, _request)| {
diff --git a/src/parser.rs b/src/parser.rs
index 643b98b..de7320a 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -15,7 +15,7 @@ use types::{PathSegment, HostPort, Host, Hostname, UriParameter, UriHeader, UriH
             AcceptParam, AcceptRange, Coding, Encoding, LanguageRange, Language, AlertParam, Qop,
             AuthenticationInfo, AuthParam, Algorithm, DigestResponse, Credentials, CallId,
             Purpose, InfoParam, Info, NameAddr, ContactParam, ContactTarget, Contact,
-            DispositionType, Handling, DispositionParam};
+            DispositionType, Handling, DispositionParam, ContentCoding};
 
 fn is_mark(c: u8) -> bool {
     c == b'-' || c == b'_' || c == b'.' || c == b'!' || c == b'~' || c == b'*' || c == b'\'' ||
@@ -810,6 +810,12 @@ named!(content_disposition_header<(DispositionType, Vec<DispositionParam>)>, pre
 			tag!(b";"),
 			disp_param)))));
 
+named!(content_encoding_header<Vec<ContentCoding>>, preceded!(
+	alt!(tag!(b"Content-Encoding:") | tag!(b"e:")),
+	separated_nonempty_list!(
+		tag!(b","),
+		token)));
+
 named!(pub header<Header>, alt!(
 // RFC 3261 Headers
 	accept_header => { |a| Header::Accept(a) } |
@@ -822,5 +828,6 @@ named!(pub header<Header>, alt!(
 	call_id_header => { |c| Header::CallId(c) } |
 	call_info_header => { |c| Header::CallInfo(c) } |
 	contact_header => { |c| Header::Contact(c) } |
-	content_disposition_header => { |(t, p)| Header::ContentDisposition(t, p) }
+	content_disposition_header => { |(t, p)| Header::ContentDisposition(t, p) } |
+	content_encoding_header => { |e| Header::ContentEncoding(e) }
 ));
diff --git a/src/types.rs b/src/types.rs
index 177a037..2beb957 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -292,6 +292,8 @@ pub enum DispositionParam {
     Generic(GenericParam),
 }
 
+pub type ContentCoding = Vec<u8>;
+
 #[derive(Debug)]
 pub enum Header {
     Accept(Vec<AcceptRange>),
@@ -305,6 +307,7 @@ pub enum Header {
     CallInfo(Vec<Info>),
     Contact(Contact),
     ContentDisposition(DispositionType, Vec<DispositionParam>),
+    ContentEncoding(Vec<ContentCoding>),
     From(Uri),
     To(Uri),
     Extension { name: String, value: String },
-- 
2.34.1