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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package middleware
import (
"context"
"net/http"
"github.com/miniflux/miniflux/logger"
"github.com/miniflux/miniflux/storage"
)
// BasicAuthMiddleware is the middleware for HTTP Basic authentication.
type BasicAuthMiddleware struct {
store *storage.Storage
}
// Handler executes the middleware.
func (b *BasicAuthMiddleware) Handler(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("WWW-Authenticate", `Basic realm="Restricted"`)
errorResponse := `{"error_message": "Not Authorized"}`
username, password, authOK := r.BasicAuth()
if !authOK {
logger.Debug("[Middleware:BasicAuth] No authentication headers sent")
w.WriteHeader(http.StatusUnauthorized)
w.Write([]byte(errorResponse))
return
}
if err := b.store.CheckPassword(username, password); err != nil {
logger.Info("[Middleware:BasicAuth] Invalid username or password: %s", username)
w.WriteHeader(http.StatusUnauthorized)
w.Write([]byte(errorResponse))
return
}
user, err := b.store.UserByUsername(username)
if err != nil {
logger.Error("[Middleware:BasicAuth] %v", err)
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte(errorResponse))
return
}
if user == nil {
logger.Info("[Middleware:BasicAuth] User not found: %s", username)
w.WriteHeader(http.StatusUnauthorized)
w.Write([]byte(errorResponse))
return
}
logger.Info("[Middleware:BasicAuth] User authenticated: %s", username)
b.store.SetLastLogin(user.ID)
ctx := r.Context()
ctx = context.WithValue(ctx, UserIDContextKey, user.ID)
ctx = context.WithValue(ctx, UserTimezoneContextKey, user.Timezone)
ctx = context.WithValue(ctx, IsAdminUserContextKey, user.IsAdmin)
ctx = context.WithValue(ctx, IsAuthenticatedContextKey, true)
next.ServeHTTP(w, r.WithContext(ctx))
})
}
// NewBasicAuthMiddleware returns a new BasicAuthMiddleware.
func NewBasicAuthMiddleware(s *storage.Storage) *BasicAuthMiddleware {
return &BasicAuthMiddleware{store: s}
}
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