Use vendored go-swagger (#8087)

* Use vendored go-swagger

* vendor go-swagger

* revert un wanteed change

* remove un-needed GO111MODULE

* Update Makefile

Co-Authored-By: techknowlogick <matti@mdranta.net>

vendor/github.com/go-openapi/runtime/request.go

@@ -0,0 +1,139 @@
+// Copyright 2015 go-swagger maintainers
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package runtime
+
+import (
+	"bufio"
+	"io"
+	"net/http"
+	"strings"
+
+	"github.com/go-openapi/swag"
+)
+
+// CanHaveBody returns true if this method can have a body
+func CanHaveBody(method string) bool {
+	mn := strings.ToUpper(method)
+	return mn == "POST" || mn == "PUT" || mn == "PATCH" || mn == "DELETE"
+}
+
+// IsSafe returns true if this is a request with a safe method
+func IsSafe(r *http.Request) bool {
+	mn := strings.ToUpper(r.Method)
+	return mn == "GET" || mn == "HEAD"
+}
+
+// AllowsBody returns true if the request allows for a body
+func AllowsBody(r *http.Request) bool {
+	mn := strings.ToUpper(r.Method)
+	return mn != "HEAD"
+}
+
+// HasBody returns true if this method needs a content-type
+func HasBody(r *http.Request) bool {
+	// happy case: we have a content length set
+	if r.ContentLength > 0 {
+		return true
+	}
+
+	if r.Header.Get(http.CanonicalHeaderKey("content-length")) != "" {
+		// in this case, no Transfer-Encoding should be present
+		// we have a header set but it was explicitly set to 0, so we assume no body
+		return false
+	}
+
+	rdr := newPeekingReader(r.Body)
+	r.Body = rdr
+	return rdr.HasContent()
+}
+
+func newPeekingReader(r io.ReadCloser) *peekingReader {
+	if r == nil {
+		return nil
+	}
+	return &peekingReader{
+		underlying: bufio.NewReader(r),
+		orig:       r,
+	}
+}
+
+type peekingReader struct {
+	underlying interface {
+		Buffered() int
+		Peek(int) ([]byte, error)
+		Read([]byte) (int, error)
+	}
+	orig io.ReadCloser
+}
+
+func (p *peekingReader) HasContent() bool {
+	if p == nil {
+		return false
+	}
+	if p.underlying.Buffered() > 0 {
+		return true
+	}
+	b, err := p.underlying.Peek(1)
+	if err != nil {
+		return false
+	}
+	return len(b) > 0
+}
+
+func (p *peekingReader) Read(d []byte) (int, error) {
+	if p == nil {
+		return 0, io.EOF
+	}
+	return p.underlying.Read(d)
+}
+
+func (p *peekingReader) Close() error {
+	p.underlying = nil
+	if p.orig != nil {
+		return p.orig.Close()
+	}
+	return nil
+}
+
+// JSONRequest creates a new http request with json headers set
+func JSONRequest(method, urlStr string, body io.Reader) (*http.Request, error) {
+	req, err := http.NewRequest(method, urlStr, body)
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Add(HeaderContentType, JSONMime)
+	req.Header.Add(HeaderAccept, JSONMime)
+	return req, nil
+}
+
+// Gettable for things with a method GetOK(string) (data string, hasKey bool, hasValue bool)
+type Gettable interface {
+	GetOK(string) ([]string, bool, bool)
+}
+
+// ReadSingleValue reads a single value from the source
+func ReadSingleValue(values Gettable, name string) string {
+	vv, _, hv := values.GetOK(name)
+	if hv {
+		return vv[len(vv)-1]
+	}
+	return ""
+}
+
+// ReadCollectionValue reads a collection value from a string data source
+func ReadCollectionValue(values Gettable, name, collectionFormat string) []string {
+	v := ReadSingleValue(values, name)
+	return swag.SplitByFormat(v, collectionFormat)
+}