mirror of https://github.com/status-im/fathom.git
94 lines
2.0 KiB
Go
94 lines
2.0 KiB
Go
package api
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import (
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"context"
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"encoding/json"
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"net/http"
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"github.com/usefathom/fathom/pkg/datastore"
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"golang.org/x/crypto/bcrypt"
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)
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type key int
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const (
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userKey key = 0
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)
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type login struct {
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Email string `json:"email"`
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Password string `json:"password"`
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}
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// URL: POST /api/session
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func (api *API) LoginHandler(w http.ResponseWriter, r *http.Request) error {
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// check login creds
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var l login
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json.NewDecoder(r.Body).Decode(&l)
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// find user with given email
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u, err := api.database.GetUserByEmail(l.Email)
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if err != nil && err != datastore.ErrNoResults {
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return err
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}
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// compare pwd
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if err == datastore.ErrNoResults || bcrypt.CompareHashAndPassword([]byte(u.Password), []byte(l.Password)) != nil {
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w.WriteHeader(http.StatusUnauthorized)
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return respond(w, envelope{Error: "invalid_credentials"})
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}
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session, _ := api.sessions.Get(r, "auth")
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session.Values["user_id"] = u.ID
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err = session.Save(r, w)
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if err != nil {
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return err
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}
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return respond(w, envelope{Data: true})
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}
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// URL: DELETE /api/session
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func (api *API) LogoutHandler(w http.ResponseWriter, r *http.Request) error {
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session, _ := api.sessions.Get(r, "auth")
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if !session.IsNew {
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session.Options.MaxAge = -1
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err := session.Save(r, w)
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if err != nil {
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return err
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}
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}
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return respond(w, envelope{Data: true})
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}
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/* middleware */
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func (api *API) Authorize(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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session, err := api.sessions.Get(r, "auth")
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// an err is returned if cookie has been tampered with, so check that
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if err != nil {
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w.WriteHeader(http.StatusUnauthorized)
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return
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}
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userID, ok := session.Values["user_id"]
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if session.IsNew || !ok {
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w.WriteHeader(http.StatusUnauthorized)
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return
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}
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// find user
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u, err := api.database.GetUser(userID.(int64))
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if err != nil {
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w.WriteHeader(http.StatusUnauthorized)
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return
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}
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ctx := context.WithValue(r.Context(), userKey, u)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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