1 files changed, 49 insertions, 0 deletions
diff --git a/account/register.go b/account/register.go
new file mode 100644
index 0000000..e008370
--- /dev/null
+++ b/account/register.go
@@ -0,0 +1,49 @@
+package account
+
+import (
+	"errors"
+	"log"
+	"regexp"
+	"strings"
+
+	"tildegit.org/andinus/perseus/password"
+	"tildegit.org/andinus/perseus/storage"
+)
+
+// Register takes in registration details and returns an error. If
+// error doesn't equal nil then the registration was unsuccessful.
+func (u User) Register(db *storage.DB) error {
+	var err error
+	u.ID = password.RandStr(64)
+	u.Username = strings.ToLower(u.Username)
+
+	// Validate username. It must be alphanumeric and less than
+	// 128 characters.
+	re := regexp.MustCompile("^[a-zA-Z0-9]*$")
+	if !re.MatchString(u.Username) {
+		return errors.New("account/register.go: invalid username")
+	}
+	if len(u.Username) > 128 {
+		return errors.New("account/register.go: username too long")
+	}
+
+	// Validate password
+	if len(u.Password) < 8 {
+		return errors.New("account/register.go: password too short")
+	}
+
+	u.Hash, err = password.Hash(u.Password)
+	if err != nil {
+		log.Printf("account/register.go: %s\n",
+			"password.Hash func failed")
+		return err
+	}
+
+	err = u.addUser(db)
+	if err != nil {
+		log.Printf("account/register.go: %s\n",
+			"addUser func failed")
+	}
+	return err
+
+}