102 lines
2.7 KiB
Go
102 lines
2.7 KiB
Go
package main
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import (
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"context"
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"fmt"
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"net/http"
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"github.com/justinas/nosurf"
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)
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func (app *application) logRequest(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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var (
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ip = r.RemoteAddr
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proto = r.Proto
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method = r.Method
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uri = r.URL.RequestURI()
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)
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app.logger.Info("received request", "ip", ip, "proto", proto, "method", method, "uri", uri)
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next.ServeHTTP(w, r)
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})
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}
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func commonHeaders(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Content-Security-Policy", "default-src 'self'; style-src 'self' fonts.googleapis.com; font-src fonts.gstatic.com")
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w.Header().Set("Referrer-Policy", "origin-when-cross-origin")
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w.Header().Set("X-Content-Type-Options", "nosniff")
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// w.Header().Set("X-Frame-Options", "deny")
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w.Header().Set("X-XSS-Protection", "0")
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next.ServeHTTP(w, r)
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})
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}
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func (app *application) recoverPanic(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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defer func() {
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if err := recover(); err != nil {
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w.Header().Set("Connection", "close")
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app.serverError(w, r, fmt.Errorf("%s", err))
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}
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}()
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next.ServeHTTP(w, r)
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})
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}
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func (app *application) requireAuthentication(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if !app.isAuthenticated(r) {
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http.Redirect(w, r, "/users/login", http.StatusSeeOther)
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return
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}
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w.Header().Add("Cache-Control", "no-store")
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next.ServeHTTP(w, r)
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})
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}
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func noSurf(next http.Handler) http.Handler {
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csrfHandler := nosurf.New(next)
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csrfHandler.SetBaseCookie(http.Cookie{
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HttpOnly: true,
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Path: "/",
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Secure: true,
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})
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return csrfHandler
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}
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func (app *application) authenticate(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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id := app.sessionManager.GetInt64(r.Context(), "authenticatedUserId")
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if id == 0 {
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next.ServeHTTP(w, r)
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return
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}
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exists, err := app.users.Exists(id)
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if err != nil {
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app.serverError(w, r, err)
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return
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}
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user, err := app.users.GetById(id)
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if err != nil {
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app.serverError(w, r, err)
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return
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}
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if exists {
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ctx := context.WithValue(r.Context(), isAuthenticatedContextKey, true)
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ctx = context.WithValue(ctx, userNameContextKey, user)
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r = r.WithContext(ctx)
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}
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next.ServeHTTP(w, r)
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})
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}
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func (app *application) enableCors(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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next.ServeHTTP(w, r)
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})
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}
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