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Add token-based authentication. #20

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Add token-based authentication. #20

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81807e4
Add token-based authentication.
jbuchbinder Jun 24, 2015
8af344d
Adjust with a few suggestions from pull request #20
jbuchbinder Jun 25, 2015
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22 changes: 22 additions & 0 deletions token.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
package auth

import (
"github.com/go-martini/martini"
"net/http"
)

// Token is the authorization token extracted from the request.
type Token string

// TokenFunc returns a Handler that authenticates via an Authentication: Bearer header using the provided function.
// The function should return true for a valid token.
func TokenFunc(authfn func(string) bool) martini.Handler {
return func(res http.ResponseWriter, req *http.Request, c martini.Context) {
auth := req.Header.Get("Authorization")
if len(auth) < 7 || auth[:7] != "Bearer " || !authfn(auth[7:]) {
http.Error(res, "Not Authorized", http.StatusUnauthorized)
return
}
c.Map(Token(auth[7:]))
}
}