From b33be53ea9c0be523988a9412fd8e3f6a24782b3 Mon Sep 17 00:00:00 2001
From: GrailFinder <wohilas@gmail.com>
Date: Sat, 20 Apr 2024 07:45:00 +0300
Subject: Feat: add auth [wip]

---
 internal/handlers/auth.go | 81 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 internal/handlers/auth.go

(limited to 'internal/handlers')

diff --git a/internal/handlers/auth.go b/internal/handlers/auth.go
new file mode 100644
index 0000000..435f8ff
--- /dev/null
+++ b/internal/handlers/auth.go
@@ -0,0 +1,81 @@
+package handlers
+
+import (
+	"apjournal/internal/models"
+	"apjournal/pkg/utils"
+	"fmt"
+	"html/template"
+	"net/http"
+	"strings"
+	"time"
+)
+
+func abortWithError(w http.ResponseWriter, msg string) {
+	tmpl := template.Must(template.ParseGlob("components/*.html"))
+	tmpl.ExecuteTemplate(w, "error", msg)
+}
+
+func (h *Handlers) HandleLogin(w http.ResponseWriter, r *http.Request) {
+	r.ParseForm()
+	username := r.PostFormValue("username")
+	if username == "" {
+		msg := "username not provided"
+		h.log.Error(msg)
+		abortWithError(w, msg)
+		return
+	}
+	password := r.PostFormValue("password")
+	if password == "" {
+		msg := "password not provided"
+		h.log.Error(msg)
+		abortWithError(w, msg)
+		return
+	}
+	cleanName := utils.RemoveSpacesFromStr(username)
+	// allNames := h.s.CacheGetAllNames()
+	allNames := []string{}
+	if utils.StrInSlice(cleanName, allNames) {
+		err := fmt.Errorf("name: %s already taken", cleanName)
+		h.log.Error("already taken", "error", err)
+		abortWithError(w, err.Error())
+		return
+	}
+	cookie, err := h.makeCookie(cleanName, r.RemoteAddr)
+	if err != nil {
+		h.log.Error("failed to login", "error", err)
+		abortWithError(w, err.Error())
+	}
+	http.SetCookie(w, cookie)
+	http.Redirect(w, r, "/", 302)
+}
+
+func (h *Handlers) makeCookie(username string, remote string) (*http.Cookie, error) {
+	// Create a new random session token
+	// sessionToken := xid.New().String()
+	sessionToken := "token"
+	expiresAt := time.Now().Add(time.Duration(h.cfg.SessionLifetime) * time.Second)
+	// Set the token in the session map, along with the session information
+	session := &models.Session{
+		Username: username,
+		Expiry:   expiresAt,
+	}
+	// TODO: write session to db
+	cookie := &http.Cookie{
+		Name:     "session_token",
+		Value:    sessionToken,
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: http.SameSiteNoneMode,
+		Domain:   h.cfg.ServerConfig.Host,
+	}
+	h.log.Info("check remote addr for cookie set",
+		"remote", remote, "session", session)
+	if strings.Contains(remote, "192.168.0") {
+		// no idea what is going on
+		// domainName = "192.168.0.101"
+		cookie.Domain = "192.168.0.101"
+	}
+	// set ctx?
+	// c.Set("username", username)
+	return cookie, nil
+}
-- 
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