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/database.go

@@ -0,0 +1,146 @@
+package database
+
+/*
+	ArOZ Online Database Access Module
+	author: tobychui
+
+	This is an improved Object oriented base solution to the original
+	aroz online database script.
+*/
+
+import (
+	"log"
+	"runtime"
+
+	"aroz.org/zoraxy/ztnc/mod/database/dbinc"
+)
+
+type Database struct {
+	Db          interface{} //This will be nil on openwrt, leveldb.DB on x64 platforms or bolt.DB on other platforms
+	BackendType dbinc.BackendType
+	Backend     dbinc.Backend
+}
+
+func NewDatabase(dbfile string, backendType dbinc.BackendType) (*Database, error) {
+	if runtime.GOARCH == "riscv64" {
+		log.Println("RISCV hardware detected, ignoring the backend type and using FS emulated database")
+	}
+	return newDatabase(dbfile, backendType)
+}
+
+// Get the recommended backend type for the current system
+func GetRecommendedBackendType() dbinc.BackendType {
+	//Check if the system is running on RISCV hardware
+	if runtime.GOARCH == "riscv64" {
+		//RISCV hardware, currently only support FS emulated database
+		return dbinc.BackendFSOnly
+	} else if runtime.GOOS == "windows" || (runtime.GOOS == "linux" && runtime.GOARCH == "amd64") {
+		//Powerful hardware
+		return dbinc.BackendBoltDB
+		//return dbinc.BackendLevelDB
+	}
+
+	//Default to BoltDB, the safest option
+	return dbinc.BackendBoltDB
+}
+
+/*
+	Create / Drop a table
+	Usage:
+	err := sysdb.NewTable("MyTable")
+	err := sysdb.DropTable("MyTable")
+*/
+
+// Create a new table
+func (d *Database) NewTable(tableName string) error {
+	return d.newTable(tableName)
+}
+
+// Check is table exists
+func (d *Database) TableExists(tableName string) bool {
+	return d.tableExists(tableName)
+}
+
+// Drop the given table
+func (d *Database) DropTable(tableName string) error {
+	return d.dropTable(tableName)
+}
+
+/*
+Write to database with given tablename and key. Example Usage:
+
+	type demo struct{
+		content string
+	}
+
+	thisDemo := demo{
+		content: "Hello World",
+	}
+
+err := sysdb.Write("MyTable", "username/message",thisDemo);
+*/
+func (d *Database) Write(tableName string, key string, value interface{}) error {
+	return d.write(tableName, key, value)
+}
+
+/*
+	Read from database and assign the content to a given datatype. Example Usage:
+
+	type demo struct{
+		content string
+	}
+	thisDemo := new(demo)
+	err := sysdb.Read("MyTable", "username/message",&thisDemo);
+*/
+
+func (d *Database) Read(tableName string, key string, assignee interface{}) error {
+	return d.read(tableName, key, assignee)
+}
+
+/*
+Check if a key exists in the database table given tablename and key
+
+	if sysdb.KeyExists("MyTable", "username/message"){
+		log.Println("Key exists")
+	}
+*/
+func (d *Database) KeyExists(tableName string, key string) bool {
+	return d.keyExists(tableName, key)
+}
+
+/*
+Delete a value from the database table given tablename and key
+
+err := sysdb.Delete("MyTable", "username/message");
+*/
+func (d *Database) Delete(tableName string, key string) error {
+	return d.delete(tableName, key)
+}
+
+/*
+	//List table example usage
+	//Assume the value is stored as a struct named "groupstruct"
+
+	entries, err := sysdb.ListTable("test")
+	if err != nil {
+		panic(err)
+	}
+	for _, keypairs := range entries{
+		log.Println(string(keypairs[0]))
+		group := new(groupstruct)
+		json.Unmarshal(keypairs[1], &group)
+		log.Println(group);
+	}
+
+*/
+
+func (d *Database) ListTable(tableName string) ([][][]byte, error) {
+	return d.listTable(tableName)
+}
+
+/*
+Close the database connection
+*/
+func (d *Database) Close() {
+	d.close()
+}