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auth.go
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/
auth.go
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package utils
import (
"encoding/base64"
"fmt"
"strings"
)
type BasicAuth struct {
Username string
Password string
}
func (ba *BasicAuth) String() string {
encoded := base64.StdEncoding.EncodeToString([]byte(fmt.Sprintf("%s:%s", ba.Username, ba.Password)))
return fmt.Sprintf("Basic %s", encoded)
}
func ParseAuthHeader(header string) (*BasicAuth, error) {
values := strings.Fields(header)
if len(values) != 2 {
return nil, fmt.Errorf(fmt.Sprintf("Failed to parse header '%s'", header))
}
auth_type := strings.ToLower(values[0])
if auth_type != "basic" {
return nil, fmt.Errorf("Expected basic auth type, got '%s'", auth_type)
}
encoded_string := values[1]
decoded_string, err := base64.StdEncoding.DecodeString(encoded_string)
if err != nil {
return nil, fmt.Errorf("Failed to parse header '%s', base64 failed: %s", header, err)
}
values = strings.SplitN(string(decoded_string), ":", 2)
if len(values) != 2 {
return nil, fmt.Errorf("Failed to parse header '%s', expected separator ':'", header)
}
return &BasicAuth{Username: values[0], Password: values[1]}, nil
}