Mercurial > gemma
annotate auth/middleware.go @ 121:9a5bbe9c593c
Split README into client and toplevel.
author | Bernhard Reiter <bernhard@intevation.de> |
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date | Wed, 27 Jun 2018 10:50:09 +0200 |
parents | 29e56c342c9f |
children | 441a8ee637c5 |
rev | line source |
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119
29e56c342c9f
Added first middleware for JWT token extraction. TODO: Add second one to check against logged in users.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
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1 package auth |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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2 |
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3 import ( |
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4 "context" |
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5 "fmt" |
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6 "net/http" |
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7 "regexp" |
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8 ) |
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parents:
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9 |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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10 var extractToken = regexp.MustCompile(`\s*Bearer\s+(\S+)`) |
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Sascha L. Teichmann <sascha.teichmann@intevation.de>
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11 |
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12 type contextType int |
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13 |
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14 const ( |
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15 claimsKey contextType = iota |
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16 tokenKey |
29e56c342c9f
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17 ) |
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18 |
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19 func GetClaims(req *http.Request) (*Claims, bool) { |
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20 claims, ok := req.Context().Value(claimsKey).(*Claims) |
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21 return claims, ok |
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22 } |
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23 |
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24 func GetToken(req *http.Request) (string, bool) { |
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25 token, ok := req.Context().Value(tokenKey).(string) |
29e56c342c9f
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26 return token, ok |
29e56c342c9f
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27 } |
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28 |
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29 func JWTMiddleware(next http.Handler) http.Handler { |
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30 |
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31 return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { |
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32 |
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33 auth := req.Header.Get("Authorization") |
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34 |
29e56c342c9f
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35 token := extractToken.FindStringSubmatch(auth) |
29e56c342c9f
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36 if len(token) != 2 { |
29e56c342c9f
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37 http.Error(rw, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized) |
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38 return |
29e56c342c9f
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39 } |
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40 |
29e56c342c9f
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41 claims, err := TokenToClaims(token[1]) |
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42 if err != nil { |
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43 http.Error(rw, fmt.Sprintf("error: %v", err), http.StatusUnauthorized) |
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44 return |
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45 } |
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46 |
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47 ctx := req.Context() |
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48 ctx = context.WithValue(ctx, claimsKey, claims) |
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49 ctx = context.WithValue(ctx, tokenKey, token[1]) |
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50 req = req.WithContext(ctx) |
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51 |
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52 next.ServeHTTP(rw, req) |
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53 }) |
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54 } |