Remove httpguts dependency

Closes #134

Author: nhooyr

README.md

@@ -16,10 +16,10 @@ go get nhooyr.io/[email protected]
 
 - Minimal and idiomatic API
 - Tiny codebase at 1700 lines
-- First class context.Context support
+- First class [context.Context](https://blog.golang.org/context) support
 - Thorough tests, fully passes the [autobahn-testsuite](https://github.com/crossbario/autobahn-testsuite)
-- Zero dependencies outside of the stdlib for the core library
-- JSON and ProtoBuf helpers in the wsjson and wspb subpackages
+- [Zero dependencies](https://godoc.org/nhooyr.io/websocket?imports)
+- JSON and ProtoBuf helpers in the [wsjson](https://godoc.org/nhooyr.io/websocket/wsjson) and [wspb](https://godoc.org/nhooyr.io/websocket/wspb) subpackages
 - Highly optimized by default
 - Concurrent writes out of the box
 
@@ -172,4 +172,4 @@ This is a list of companies or projects that use this library.
 
 - [Coder](https://github.com/cdr)
 
-If your company or project is using this library, please feel free to open a PR to amend the list.
+If your company or project is using this library, please feel free to open an issue or PR to amend the list.

accept.go

@@ -10,7 +10,6 @@ import (
 	"net/url"
 	"strings"
 
-	"golang.org/x/net/http/httpguts"
 	"golang.org/x/xerrors"
 )
 
@@ -151,9 +150,29 @@ func accept(w http.ResponseWriter, r *http.Request, opts *AcceptOptions) (*Conn,
 	return c, nil
 }
 
-func headerValuesContainsToken(h http.Header, key, val string) bool {
+func headerValuesContainsToken(h http.Header, key, token string) bool {
 	key = textproto.CanonicalMIMEHeaderKey(key)
-	return httpguts.HeaderValuesContainsToken(h[key], val)
+
+	for _, val2 := range h[key] {
+		if headerValueContainsToken(val2, token) {
+			return true
+		}
+	}
+
+	return false
+}
+
+func headerValueContainsToken(val2, token string) bool {
+	val2 = strings.TrimSpace(val2)
+
+	for _, val2 := range strings.Split(val2, ",") {
+		val2 = strings.TrimSpace(val2)
+		if strings.EqualFold(val2, token) {
+			return true
+		}
+	}
+
+	return false
 }
 
 func selectSubprotocol(r *http.Request, subprotocols []string) string {

go.mod

@@ -18,9 +18,7 @@ require (
 	go.uber.org/atomic v1.4.0 // indirect
 	go.uber.org/multierr v1.1.0
 	golang.org/x/lint v0.0.0-20190409202823-959b441ac422
-	golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297
 	golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0 // indirect
-	golang.org/x/text v0.3.2 // indirect
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
 	golang.org/x/tools v0.0.0-20190830223141-573d9926052a
 	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7

go.sum

@@ -78,8 +78,6 @@ golang.org/x/net v0.0.0-20181102091132-c10e9556a7bc/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a h1:oWX7TPOiFAMXLq8o0ikBYfCJVlRHBcsciT5bXOrH628=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297 h1:k7pJ2yAPLPgbskkFdhRCsA77k2fySZ1zf2zCjvQCiIM=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -93,11 +91,8 @@ golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0 h1:7z820YPX9pxWR59qM7BE5+fgl
 golang.org/x/sys v0.0.0-20190830142957-1e83adbbebd0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 h1:SvFZT6jyqRaOeXpc5h/JSfZenJ2O330aBsf7JfSUXmQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190830223141-573d9926052a h1:XAHT1kdPpnU8Hk+FPi42KZFhtNFEk4vBg1U4OmIeHTU=
 golang.org/x/tools v0.0.0-20190830223141-573d9926052a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=