add meep-users (50449314) · Commits · MEC - Multi-access Edge Computing / ETSI MEC Sandbox

go-packages/meep-users/db.go

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		/*
		* Copyright (c) 2020 InterDigital Communications, Inc
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package usersdb

		import (
		"database/sql"
		"errors"
		"strings"

		log "github.com/InterDigitalInc/AdvantEDGE/go-packages/meep-logger"

		"github.com/lib/pq"
		_ "github.com/lib/pq"
		)

		// DB Config
		const (
		DbHost = "meep-postgis.default.svc.cluster.local"
		DbPort = "5432"
		DbUser = ""
		DbPassword = ""
		DbDefault = "postgres"
		DbMaxRetryCount int = 2
		)

		// DB Table Names
		const (
		UsersTable = "users"
		)

		const (
		RoleUser = "user"
		RoleSuper = "super"
		)

		type User struct {
		id string
		username string
		password string
		role string
		sboxname string
		}

		// Connector - Implements a Postgis SQL DB connector
		type Connector struct {
		name string
		namespace string
		dbName string
		db *sql.DB
		connected bool
		updateCb func(string, string)
		}

		// NewConnector - Creates and initializes a Postgis connector
		func NewConnector(name, user, pwd, host, port string) (pc *Connector, err error) {
		if name == "" {
		err = errors.New("Missing connector name")
		return nil, err
		}

		// Create new connector
		pc = new(Connector)
		pc.name = name
		pc.namespace = "default"

		// Connect to Postgis DB
		for retry := 0; retry <= DbMaxRetryCount; retry++ {
		pc.db, err = pc.connectDB("", user, pwd, host, port)
		if err == nil {
		break
		}
		}
		if err != nil {
		log.Error("Failed to connect to postgis with err: ", err.Error())
		return nil, err
		}
		defer pc.db.Close()

		// Create DB if it does not exist
		// Use format: '<namespace>_<name>' & replace dashes with underscores
		pc.dbName = strings.ToLower(strings.Replace(namespace+"_"+name, "-", "_", -1))

		// Ignore DB creation error in case it already exists.
		// Failure will occur at DB connection if DB was not successfully created.
		_ = pc.CreateDb(pc.dbName)

		// Close connection to postgis
		pc.db.Close()

		// Connect with DB
		pc.db, err = pc.connectDB(pc.dbName, user, pwd, host, port)
		if err != nil {
		log.Error("Failed to connect to DB with err: ", err.Error())
		return nil, err
		}

		log.Info("Postgis Connector successfully created")
		pc.connected = true
		return pc, nil
		}

		func (pc Connector) connectDB(dbName, user, pwd, host, port string) (db sql.DB, err error) {
		// Set default values if none provided
		if dbName == "" {
		dbName = DbDefault
		}
		if host == "" {
		host = DbHost
		}
		if port == "" {
		port = DbPort
		}
		log.Debug("Connecting to Postgis DB [", dbName, "] at addr [", host, ":", port, "]")

		// Open postgis DB
		connStr := "user=" + user + " password=" + pwd + " dbname=" + dbName + " host=" + host + " port=" + port + " sslmode=disable"
		db, err = sql.Open("postgres", connStr)
		if err != nil {
		log.Warn("Failed to connect to Postgis DB with error: ", err.Error())
		return nil, err
		}

		// Make sure connection is up
		err = db.Ping()
		if err != nil {
		log.Warn("Failed to ping Postgis DB with error: ", err.Error())
		db.Close()
		return nil, err
		}

		log.Info("Connected to Postgis DB [", dbName, "]")
		return db, nil
		}

		// CreateDb -- Create new DB with provided name
		func (pc *Connector) CreateDb(name string) (err error) {
		_, err = pc.db.Exec("CREATE DATABASE " + name)
		if err != nil {
		log.Error(err.Error())
		return err
		}

		log.Info("Created database: " + name)
		return nil
		}

		func (pc *Connector) CreateTables() (err error) {
		_, err = pc.db.Exec("CREATE EXTENSION IF NOT EXISTS pgcrypto")
		if err != nil {
		log.Error(err.Error())
		return err
		}

		// users Table
		_, err = pc.db.Exec(`CREATE TABLE ` + UsersTable + ` (
		id SERIAL PRIMARY KEY,
		username varchar(36) NOT NULL UNIQUE,
		password varchar(36) NOT NULL,
		role varchar(36) NOT NULL DEFAULT 'user'
		sboxname varchar(36) NOT NULL DEFAULT ''
		)`)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		log.Info("Created table: ", UsersTable)

		return nil
		}

		// DeleteTables - Delete all tables
		func (pc *Connector) DeleteTables() (err error) {
		_ = pc.DeleteTable(UsersTable)
		return nil
		}

		// DeleteTable - Delete table with provided name
		func (pc *Connector) DeleteTable(tableName string) (err error) {
		_, err = pc.db.Exec("DROP TABLE IF EXISTS " + tableName)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		log.Info("Deleted table: " + tableName)
		return nil
		}

		// CreateUser - Create new user
		func (pc *Connector) CreateUser(username string, password string, role string, sboxname string) (err error) {
		// Validate input
		if username == "" {
		return errors.New("Missing username")
		}
		if password == "" {
		return errors.New("Missing password")
		}
		if role == "" {
		role = RoleUser
		} else {
		err = isValidRole(role)
		if err != nil {
		return err
		}
		}

		// Create entry
		query := `INSERT INTO ` + UsersTable + ` (username, password, role, sboxname)
		VALUES ($1, crypt('`+password+`', gen_salt('bf')), $2, $3)`
		_, err = pc.db.Exec(query, username, role, sboxname)
		if err != nil {
		log.Error(err.Error())
		return err
		}

		return nil
		}

		// UpdateUser - Update existing user
		func (pc *Connector) UpdateUser(username string, password string, role string, sboxname string) (err error) {
		// Validate input
		if username == "" {
		return errors.New("Missing username")
		}

		if password != "" {
		query := `UPDATE ` + UsersTable + `
		SET password = crypt('`+password+`', gen_salt('bf'))
		WHERE name = ($1)`
		_, err = pc.db.Exec(query, username)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		}

		if role != "" {
		err = isValidRole(role)
		if err != nil {
		return err
		}
		query := `UPDATE ` + UsersTable + `
		SET role = $2
		WHERE name = ($1)`
		_, err = pc.db.Exec(query, username, role)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		}

		if sboxname != "" {
		query := `UPDATE ` + UsersTable + `
		SET sboxname = $2
		WHERE name = ($1)`
		_, err = pc.db.Exec(query, username, sboxname)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		}

		return nil
		}

		// GetUser - Get user information
		func (pc Connector) GetUser(name string) (user User, err error) {
		// Validate input
		if username == "" {
		err = errors.New("Missing username")
		return nil, err
		}

		// Get user entry
		var rows *sql.Rows
		rows, err = pc.db.Query(`
		SELECT id, username, password, role, sboxname
		FROM `+UsersTable+`
		WHERE name = ($1)`, username)
		if err != nil {
		log.Error(err.Error())
		return nil, err
		}
		defer rows.Close()

		// Scan result
		for rows.Next() {
		user = new(User)
		err = rows.Scan(&user.id, &user.username, &user.password, &user.role, &user.sboxname)
		if err != nil {
		log.Error(err.Error())
		return nil, err
		}
		}
		err = rows.Err()
		if err != nil {
		log.Error(err)
		}

		// Return error if not found
		if user == nil {
		err = errors.New("user not found: " + name)
		return nil, err
		}
		return user, nil
		}

		// GetAllUsers - Get All users
		func (pc Connector) GetUsers() (userMap map[string]User, err error) {
		// Create map
		userMap = make(map[string]*User)

		// Get user entries
		var rows *sql.Rows
		rows, err = pc.db.Query(`
		SELECT id, username, password, role, sboxname
		FROM ` + UsersTable)
		if err != nil {
		log.Error(err.Error())
		return userMap, err
		}
		defer rows.Close()

		// Scan results
		for rows.Next() {
		user := new(User)
		err = rows.Scan(&user.id, &user.username, &user.password, &user.role, &user.sboxname)
		if err != nil {
		log.Error(err.Error())
		return userMap, err
		}

		// Add to map
		userMap[user.username] = user
		}
		err = rows.Err()
		if err != nil {
		log.Error(err)
		}

		return userMap, nil
		}

		// DeleteUser - Delete user entry
		func (pc *Connector) DeleteUser(name string) (err error) {
		// Validate input
		if username == "" {
		err = errors.New("Missing username")
		return err
		}

		_, err = pc.db.Exec(`DELETE FROM `+UsersTable+` WHERE name = ($1)`, username)
		if err != nil {
		log.Error(err.Error())
		return err
		}

		return nil
		}

		// DeleteAllUsers - Delete all users entries
		func (pc *Connector) DeleteUsers() (err error) {
		_, err = pc.db.Exec(`DELETE FROM ` + UsersTable)
		if err != nil {
		log.Error(err.Error())
		return err
		}
		return nil
		}

		//IsValidUser - does if user exists
		func (pc *Connector) IsValidUser(username string) (bool, err error){
		// Validate input
		if username == "" {
		err = errors.New("Missing username")
		return false, err
		}

		rows, err = pc.db.Query(`
		SELECT id
		FROM `+UsersTable+`
		WHERE name = ($1)`, username)
		if err != nil {
		log.Error(err.Error())
		return false, err
		}
		defer rows.Close()

		// Scan results
		for rows.Next() {
		user := new(User)
		err = rows.Scan(&user.id)
		if err != nil {
		log.Error(err.Error())
		return false, err
		} else {
		//User exists
		return true, nil
		}
		// User does not exist & no error
		return false, nil
		}
		}

		//AuthenticateUser - returns true or false if credentials are OK
		func (pc *Connector) AuthenticateUser(username string, password string) (bool, err error){
		// Validate input
		if username == "" {
		err = errors.New("Missing username")
		return false, err
		}

		rows, err = pc.db.Query(`
		SELECT id
		FROM `+UsersTable+`
		WHERE name = ($1)
		AND password = crypt('($2)', password)` , username, password)
		if err != nil {
		log.Error(err.Error())
		return false, err
		}
		defer rows.Close()

		// Scan results
		for rows.Next() {
		user := new(User)
		err = rows.Scan(&user.id)
		if err != nil {
		log.Error(err.Error())
		return false, err
		} else {
		//User exists
		return true, nil
		}
		}
		// User does not exist & no error
		return false, nil
		}

		// isValidRole - does role exist
		func isValidRole(role string) (error) {
		switch role {
		case RoleUser, RoleSuper:
		return nil
		}
		return errors.New("Inalid role")
		}

go-packages/meep-users/db_test.go

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		/*
		* Copyright (c) 2020 InterDigital Communications, Inc
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package postgisdb

		import (
		"fmt"
		"sort"
		"testing"

		log "github.com/InterDigitalInc/AdvantEDGE/go-packages/meep-logger"
		)

		const (
		pcName = "pc"
		pcNamespace = "postgis-ns"
		pcDBUser = "postgres"
		pcDBPwd = "pwd"
		pcDBHost = "localhost"
		pcDBPort = "30432"

		username0 = ""
		username1 = "user1"
		username2 = "user2"
		username3 = "user3"

		password0 = ""
		password1 = "123" //3 chars
		password2 = "gie[rh[iuhberieg" //16 chars
		password3 = "efbiwerbfiwferbirgfbiuqrfgbdrfgjnbqairbqifhrbeqi[frb[rifhb[qirfbq]]]qaef[048FERGerwWRGG]FASF03404924" // 100 chars

		role0 = "invalid-role"
		role1 = "user"
		role2 = "user"
		role2 = "super"

		sboxname0 = ""
		sboxname1 = "sbox-1"
		sboxname2 = "sbox-2"
		sboxname3 = "sbox-3"

		)

		func TestConnector(t *testing.T) {
		fmt.Println("--- ", t.Name())
		log.MeepTextLogInit(t.Name())

		// Invalid Connector
		fmt.Println("Invalid Connector")
		pc, err := NewConnector("", pcDBUser, pcDBPwd, pcDBHost, pcDBPort)
		if err == nil \|\| pc != nil {
		t.Fatalf("DB connection should have failed")
		}
		pc, err = NewConnector(pcName, pcDBUser, pcDBPwd, "invalid-host", pcDBPort)
		if err == nil \|\| pc != nil {
		t.Fatalf("DB connection should have failed")
		}
		pc, err = NewConnector(pcName, pcDBUser, pcDBPwd, pcDBHost, "invalid-port")
		if err == nil \|\| pc != nil {
		t.Fatalf("DB connection should have failed")
		}
		pc, err = NewConnector(pcName, pcDBUser, "invalid-pwd", pcDBHost, pcDBPort)
		if err == nil \|\| pc != nil {
		t.Fatalf("DB connection should have failed")
		}

		// Valid Connector
		fmt.Println("Create valid Postgis Connector")
		pc, err = NewConnector(pcName, pcNamespace, pcDBUser, pcDBPwd, pcDBHost, pcDBPort)
		if err != nil \|\| pc == nil {
		t.Fatalf("Failed to create postgis Connector")
		}

		// Cleanup
		_ = pc.DeleteTable(UsersTable)

		// Create tables
		fmt.Println("Create Tables")
		err = pc.CreateTables()
		if err != nil {
		t.Fatalf("Failed to create tables")
		}

		// Cleanup
		err = pc.DeleteTables()
		if err != nil {
		t.Fatalf("Failed to create tables")
		}

		// t.Fatalf("DONE")
		}

		func TestPostgisCreateUser(t *testing.T) {
		fmt.Println("--- ", t.Name())
		log.MeepTextLogInit(t.Name())

		// Create Connector
		fmt.Println("Create valid Connector")
		pc, err := NewConnector(pcName, pcDBUser, pcDBPwd, pcDBHost, pcDBPort)
		if err != nil \|\| pc == nil {
		t.Fatalf("Failed to create postgis Connector")
		}

		// Cleanup
		_ = pc.DeleteTables()

		// Create tables
		fmt.Println("Create Tables")
		err = pc.CreateTables()
		if err != nil {
		t.Fatalf("Failed to create tables")
		}

		// Make sure users don't exist
		fmt.Println("Verify no user present")
		userMap, err := pc.GetUsers()
		if err != nil {
		t.Fatalf("Failed to get all users")
		}
		if len(userMap) != 0 {
		t.Fatalf("No user should be present")
		}

		fmt.Println("Create Invalid users")
		err = pc.CreateUser(username0, password1, role1, sboxname1)
		if err == nil {
		t.Fatalf("user creation should have failed")
		}
		err = pc.CreateUser(username1, password0, role1, sboxname1)
		if err == nil {
		t.Fatalf("user creation should have failed")
		}
		err = pc.CreateUser(username1, password1, role0, sboxname1)
		if err == nil {
		t.Fatalf("user creation should have failed")
		}
		err = pc.CreateUser(username1, password1, role1, sboxname0)
		if err == nil {
		t.Fatalf("user creation should have failed")
		}

		fmt.Println("user DB operations")
		err = pc.CreateUser(username1, password1, role1, sboxname1)
		if err != nil {
		t.Fatalf("Failed to create asset")
		}
		user, err := pc.GetUser(username1)
		if err != nil \|\| user == nil {
		t.Fatalf("Failed to get user")
		}
		if user.username != username1 \|\| user.role != role1 \|\| user.sboxname != sboxname1 {
		t.Fatalf("Wrong user data")
		}
		if user.password == password1 {
		t.Fatalf("Password not encrypted")
		}
		if !IsValidUser(username1){
		t.Fatalf("Failed to validate user")
		}
		if !AuthenticateUser(username1, password1) {
		t.Fatalf("Failed to authenticate user")
		}
		if AuthenticateUser(username1, password2) {
		t.Fatalf("Wrong user authentication")
		}

		err = pc.CreateUser(username2, password2, role2, sboxname2)
		if err != nil {
		t.Fatalf("Failed to create asset")
		}
		user, err := pc.GetUser(username2)
		if err != nil \|\| user == nil {
		t.Fatalf("Failed to get user")
		}
		if user.username != username2 \|\| user.role != role2 \|\| user.sboxname != sboxname2 {
		t.Fatalf("Wrong user data")
		}
		if user.password == password2 {
		t.Fatalf("Password not encrypted")
		}
		if !IsValidUser(username2){
		t.Fatalf("Failed to validate user")
		}
		if !AuthenticateUser(username2, password2) {
		t.Fatalf("Failed to authenticate user")
		}
		if AuthenticateUser(username2, password1) {
		t.Fatalf("Wrong user authentication")
		}

		err = pc.CreateUser(username3, password3, role3, sboxname3)
		if err != nil {
		t.Fatalf("Failed to create asset")
		}
		user, err := pc.GetUser(username3)
		if err != nil \|\| user == nil {
		t.Fatalf("Failed to get user")
		}
		if user.username != username3 \|\| user.role != role3 \|\| user.sboxname != sboxname3 {
		t.Fatalf("Wrong user data")
		}
		if user.password == password3 {
		t.Fatalf("Password not encrypted")
		}
		if !IsValidUser(username3){
		t.Fatalf("Failed to validate user")
		}
		if !AuthenticateUser(username3, password3) {
		t.Fatalf("Failed to authenticate user")
		}
		if AuthenticateUser(username3, password1) {
		t.Fatalf("Wrong user authentication")
		}

		// Verify all additions worked
		userMap, err = pc.GetUsers()
		if err != nil \|\| len(usersMap) != 3 {
		t.Fatalf("Error getting all users")
		}

		// Remove & validate update
		fmt.Println("Remove user & validate update")
		err = pc.DeleteUser(username3)
		if err != nil {
		t.Fatalf("Failed to delete user")
		}
		user, err = pc.GetUser(username3)
		if err == nil \|\| user != nil {
		t.Fatalf("user should no longer exist")
		}

		// Update & validate update
		fmt.Println("Add user & validate update")
		err = UpdateUser(username1,password3,role3,sboxname3)
		if err != nil {
		t.Fatalf("Failed to update asset")
		}
		user, err = pc.GetUser(username1)
		if err != nil \|\| user == nil {
		t.Fatalf("Failed to get user")
		}
		if user.username != username1 \|\| user.role != role3 \|\| user.sboxname != sboxname3 {
		t.Fatalf("Wrong user data")
		}
		if !AuthenticateUser(username1, password3) {
		t.Fatalf("Failed to authenticate user")
		}
		if AuthenticateUser(username1, password1) {
		t.Fatalf("Wrong user authentication")
		}

		// Delete all users & validate updates
		fmt.Println("Delete all users & validate updates")
		err = pc.DeleteUsers()
		if err != nil {
		t.Fatalf("Failed to delete all user")
		}
		userMap, err = pc.GetUsers()
		if err != nil \|\| len(userMap) != 0 {
		t.Fatalf("user should no longer exist")
		}

		// t.Fatalf("DONE")
		}

go-packages/meep-users/go.mod

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Original line number	Diff line number	Diff line
		module github.com/InterDigitalInc/AdvantEDGE/go-packages/meep-users

		go 1.12

		require (
		github.com/InterDigitalInc/AdvantEDGE/go-packages/meep-logger v0.0.0
		github.com/lib/pq v1.5.2
		)

		replace github.com/InterDigitalInc/AdvantEDGE/go-packages/meep-logger => ../../go-packages/meep-logger

go-packages/meep-users/go.sum

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+11 −0

Original line number	Diff line number	Diff line
		github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
		github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
		github.com/lib/pq v1.5.2 h1:yTSXVswvWUOQ3k1sd7vJfDrbSl8lKuscqFJRqjC0ifw=
		github.com/lib/pq v1.5.2/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
		github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
		github.com/sirupsen/logrus v1.4.1 h1:GL2rEmy6nsikmW0r8opw9JIRScdMF5hA8cOYLH7In1k=
		github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
		github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
		github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
		golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33 h1:I6FyU15t786LL7oL/hn43zqTuEGr4PN7F4XJ1p4E3Y8=
		golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=