Added embed server for plugin library

- Added embeded resources server for plugin library
- Added ztnc plugin for global area network
- Added wide mode for side wrapper

example/plugins/ztnc/mod/database/dbbolt/dbbolt.go

@@ -0,0 +1,141 @@
+package dbbolt
+
+import (
+	"encoding/json"
+	"errors"
+
+	"github.com/boltdb/bolt"
+)
+
+type Database struct {
+	Db interface{} //This is the bolt database object
+}
+
+func NewBoltDatabase(dbfile string) (*Database, error) {
+	db, err := bolt.Open(dbfile, 0600, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return &Database{
+		Db: db,
+	}, err
+}
+
+// Create a new table
+func (d *Database) NewTable(tableName string) error {
+	err := d.Db.(*bolt.DB).Update(func(tx *bolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists([]byte(tableName))
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+
+	return err
+}
+
+// Check is table exists
+func (d *Database) TableExists(tableName string) bool {
+	return d.Db.(*bolt.DB).View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(tableName))
+		if b == nil {
+			return errors.New("table not exists")
+		}
+		return nil
+	}) == nil
+}
+
+// Drop the given table
+func (d *Database) DropTable(tableName string) error {
+	err := d.Db.(*bolt.DB).Update(func(tx *bolt.Tx) error {
+		err := tx.DeleteBucket([]byte(tableName))
+		if err != nil {
+			return err
+		}
+		return nil
+	})
+	return err
+}
+
+// Write to table
+func (d *Database) Write(tableName string, key string, value interface{}) error {
+	jsonString, err := json.Marshal(value)
+	if err != nil {
+		return err
+	}
+	err = d.Db.(*bolt.DB).Update(func(tx *bolt.Tx) error {
+		_, err := tx.CreateBucketIfNotExists([]byte(tableName))
+		if err != nil {
+			return err
+		}
+		b := tx.Bucket([]byte(tableName))
+		err = b.Put([]byte(key), jsonString)
+		return err
+	})
+	return err
+}
+
+func (d *Database) Read(tableName string, key string, assignee interface{}) error {
+	err := d.Db.(*bolt.DB).View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(tableName))
+		v := b.Get([]byte(key))
+		json.Unmarshal(v, &assignee)
+		return nil
+	})
+	return err
+}
+
+func (d *Database) KeyExists(tableName string, key string) bool {
+	resultIsNil := false
+	if !d.TableExists(tableName) {
+		//Table not exists. Do not proceed accessing key
+		//log.Println("[DB] ERROR: Requesting key from table that didn't exist!!!")
+		return false
+	}
+	err := d.Db.(*bolt.DB).View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(tableName))
+		v := b.Get([]byte(key))
+		if v == nil {
+			resultIsNil = true
+		}
+		return nil
+	})
+
+	if err != nil {
+		return false
+	} else {
+		if resultIsNil {
+			return false
+		} else {
+			return true
+		}
+	}
+}
+
+func (d *Database) Delete(tableName string, key string) error {
+	err := d.Db.(*bolt.DB).Update(func(tx *bolt.Tx) error {
+		tx.Bucket([]byte(tableName)).Delete([]byte(key))
+		return nil
+	})
+
+	return err
+}
+
+func (d *Database) ListTable(tableName string) ([][][]byte, error) {
+	var results [][][]byte
+	err := d.Db.(*bolt.DB).View(func(tx *bolt.Tx) error {
+		b := tx.Bucket([]byte(tableName))
+		c := b.Cursor()
+
+		for k, v := c.First(); k != nil; k, v = c.Next() {
+			results = append(results, [][]byte{k, v})
+		}
+		return nil
+	})
+	return results, err
+}
+
+func (d *Database) Close() {
+	d.Db.(*bolt.DB).Close()
+}

example/plugins/ztnc/mod/database/dbbolt/dbbolt_test.go

@@ -0,0 +1,67 @@
+package dbbolt_test
+
+import (
+	"os"
+	"testing"
+
+	"aroz.org/zoraxy/ztnc/mod/database/dbbolt"
+)
+
+func TestNewBoltDatabase(t *testing.T) {
+	dbfile := "test.db"
+	defer os.Remove(dbfile)
+
+	db, err := dbbolt.NewBoltDatabase(dbfile)
+	if err != nil {
+		t.Fatalf("Failed to create new Bolt database: %v", err)
+	}
+	defer db.Close()
+
+	if db.Db == nil {
+		t.Fatalf("Expected non-nil database object")
+	}
+}
+
+func TestNewTable(t *testing.T) {
+	dbfile := "test.db"
+	defer os.Remove(dbfile)
+
+	db, err := dbbolt.NewBoltDatabase(dbfile)
+	if err != nil {
+		t.Fatalf("Failed to create new Bolt database: %v", err)
+	}
+	defer db.Close()
+
+	err = db.NewTable("testTable")
+	if err != nil {
+		t.Fatalf("Failed to create new table: %v", err)
+	}
+}
+
+func TestTableExists(t *testing.T) {
+	dbfile := "test.db"
+	defer os.Remove(dbfile)
+
+	db, err := dbbolt.NewBoltDatabase(dbfile)
+	if err != nil {
+		t.Fatalf("Failed to create new Bolt database: %v", err)
+	}
+	defer db.Close()
+
+	tableName := "testTable"
+	err = db.NewTable(tableName)
+	if err != nil {
+		t.Fatalf("Failed to create new table: %v", err)
+	}
+
+	exists := db.TableExists(tableName)
+	if !exists {
+		t.Fatalf("Expected table %s to exist", tableName)
+	}
+
+	nonExistentTable := "nonExistentTable"
+	exists = db.TableExists(nonExistentTable)
+	if exists {
+		t.Fatalf("Expected table %s to not exist", nonExistentTable)
+	}
+}