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Include Allow header for 405 Method Not Allowed responses #69

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Include Allow header for 405 Method Not Allowed responses #69

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16 changes: 14 additions & 2 deletions helper.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
package bone

import (
"fmt"
"net/http"
"net/url"
"strings"
Expand Down Expand Up @@ -155,16 +156,27 @@ func extractQueries(req *http.Request) (bool, map[string][]string) {
}

func (m *Mux) otherMethods(rw http.ResponseWriter, req *http.Request) bool {
allowed := []string{}
for _, met := range method {
if met != req.Method {
for _, r := range m.Routes[met] {
ok := r.exists(rw, req)
if ok {
rw.WriteHeader(http.StatusMethodNotAllowed)
return true
allowed = append(allowed, r.Method)
}
}
}
}
if len(allowed) > 0 {
// Build the Allow header. Append HEAD to the list of allowed methods if necessary.
allowHeader := strings.Join(allowed, ", ")
if strings.Contains(allowHeader, "GET") && !strings.Contains(allowHeader, "HEAD") {
allowHeader = fmt.Sprintf("%s, HEAD", allowHeader)
}

rw.Header().Set("Allow", allowHeader)
http.Error(rw, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
return true
}
return false
}