60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
package ctrladmin
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import (
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"context"
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"net/http"
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"github.com/gorilla/sessions"
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"senan.xyz/g/gonic/db"
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)
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func (c *Controller) WithSession(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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session, _ := c.sessDB.Get(r, "gonic")
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withSession := context.WithValue(r.Context(), CtxSession, session)
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next.ServeHTTP(w, r.WithContext(withSession))
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})
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}
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func (c *Controller) WithUserSession(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// session exists at this point
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session := r.Context().Value(CtxSession).(*sessions.Session)
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username, ok := session.Values["user"].(string)
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if !ok {
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sessAddFlashW(session, []string{"you are not authenticated"})
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sessLogSave(session, w, r)
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http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
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return
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}
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// take username from sesion and add the user row to the context
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user := c.DB.GetUserFromName(username)
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if user == nil {
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// the username in the client's session no longer relates to a
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// user in the database (maybe the user was deleted)
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session.Options.MaxAge = -1
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sessLogSave(session, w, r)
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http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
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return
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}
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withUser := context.WithValue(r.Context(), CtxUser, user)
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next.ServeHTTP(w, r.WithContext(withUser))
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})
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}
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func (c *Controller) WithAdminSession(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// session and user exist at this point
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session := r.Context().Value(CtxSession).(*sessions.Session)
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user := r.Context().Value(CtxUser).(*db.User)
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if !user.IsAdmin {
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sessAddFlashW(session, []string{"you are not an admin"})
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sessLogSave(session, w, r)
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http.Redirect(w, r, c.Path("/admin/login"), http.StatusSeeOther)
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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