1 files changed, 43 insertions, 0 deletions
diff --git a/api/handlers/ical.go b/api/handlers/ical.go
new file mode 100644
index 0000000..c4b3989
--- /dev/null
+++ b/api/handlers/ical.go
@@ -0,0 +1,43 @@
+package handlers
+
+import (
+	"crypto/subtle"
+
+	"github.com/LMBishop/confplanner/api/dto"
+	"github.com/LMBishop/confplanner/pkg/calendar"
+	"github.com/LMBishop/confplanner/pkg/ical"
+	"github.com/gofiber/fiber/v2"
+)
+
+func GetIcal(icalService ical.Service, calendarService calendar.Service) fiber.Handler {
+	return func(c *fiber.Ctx) error {
+		name := c.Query("name")
+		key := c.Query("key")
+
+		if name == "" || key == "" {
+			return &dto.ErrorResponse{
+				Code:    fiber.StatusBadRequest,
+				Message: "Both name and key must be specified",
+			}
+		}
+
+		calendar, err := calendarService.GetCalendarByName(name)
+		if err != nil {
+			return err
+		}
+
+		if subtle.ConstantTimeCompare([]byte(key), []byte(calendar.Key)) != 1 {
+			return &dto.ErrorResponse{
+				Code:    fiber.StatusUnauthorized,
+				Message: "Invalid key",
+			}
+		}
+
+		ical, err := icalService.GenerateIcalForCalendar(*calendar)
+		if err != nil {
+			return err
+		}
+
+		return c.SendString(ical)
+	}
+}