First commit

handlers.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+	"os"
+	"strings"
+)
+
+type RegisterRequest struct {
+	Email    string `json:"email"`
+	Password string `json:"password"`
+	Captcha  string `json:"captcha"`
+}
+
+func RegisterHandler(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	// Parse the request
+	var req RegisterRequest
+	err := json.NewDecoder(r.Body).Decode(&req)
+	if err != nil {
+		http.Error(w, "Invalid request body", http.StatusBadRequest)
+		return
+	}
+
+	// Validate email domain
+	allowedDomains := strings.Split(os.Getenv("ALLOWED_DOMAINS"), ",")
+	if !isDomainAllowed(req.Email, allowedDomains) {
+		http.Error(w, "Email domain not allowed", http.StatusForbidden)
+		return
+	}
+
+	// Validate CAPTCHA
+	if !ValidateCaptcha(req.Captcha) {
+		http.Error(w, "Invalid CAPTCHA", http.StatusUnauthorized)
+		return
+	}
+
+	// Register user
+	overleaf := NewOverleaf(os.Getenv("OL_INSTANCE"))
+	err = overleaf.Login(os.Getenv("OL_ADMIN_EMAIL"), os.Getenv("OL_ADMIN_PASSWORD"))
+	if err != nil {
+		http.Error(w, "Failed to log in as admin", http.StatusInternalServerError)
+		return
+	}
+
+	err = overleaf.RegisterUser(req.Email, req.Password)
+	if err != nil {
+		http.Error(w, "Failed to register user: "+err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusCreated)
+	json.NewEncoder(w).Encode(map[string]string{"message": "User registered successfully"})
+}
+
+func isDomainAllowed(email string, allowedDomains []string) bool {
+	parts := strings.Split(email, "@")
+	if len(parts) != 2 {
+		return false
+	}
+	domain := parts[1]
+	for _, allowed := range allowedDomains {
+		if domain == allowed {
+			return true
+		}
+	}
+	return false
+}