patchman/server/api/endpoint/register.go

package endpoint

import (
	"git.jmbit.de/jmb/patchman/server/database"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"golang.org/x/crypto/bcrypt"
	"log"
	"net/http"
	"time"
)

type Registration struct {
	hostname string
	token    string
	secret   string
}

func Register(c *gin.Context) {
	var requestData Registration
	var usedToken database.RegistrationToken
	now := time.Now()
	if err := c.ShouldBindJSON(&requestData); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	// Validate registration token
	hashedToken, err := bcrypt.GenerateFromPassword([]byte(requestData.token), bcrypt.DefaultCost)
	usedToken.Hash = string(hashedToken)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		log.Printf("Could not hash token: %v", err)
		return
	}
	result := database.DB.First(&usedToken)
	if result.Error != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": result.Error})
		log.Printf("Could not validate token hash: %v", result.Error)
		return
	}

	// create Endpoint struct
	hashedSecret, err := bcrypt.GenerateFromPassword([]byte(requestData.secret), bcrypt.DefaultCost)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		log.Printf("Could not secret token: %v", err)
		return
	}
	newEndpoint := database.Endpoint{
		ID:             uuid.New(),
		Name:           requestData.hostname,
		LastConnection: &now,
		RegisteredDate: &now,
		SecretHash:     string(hashedSecret),
		Enabled:        false,
	}

	// Store Endpoint to Database
	database.DB.Create(&newEndpoint)
	result = database.DB.First(&usedToken)
	if result.Error != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		log.Printf("Could not create register Endpoint: %v", err)
		return
	}
	c.JSON(http.StatusOK, gin.H{"uuid": newEndpoint.ID})

}