/
database.go
350 lines (310 loc) · 10.5 KB
/
database.go
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package v2
import (
"context"
"fmt"
"net/http"
"strings"
"github.com/actiontech/dtle/driver/mysql/mysqlconfig"
"github.com/actiontech/dtle/driver/oracle/config"
"github.com/hashicorp/go-hclog"
"github.com/actiontech/dtle/g"
"github.com/labstack/echo/v4"
"github.com/actiontech/dtle/api/handler"
gosql "database/sql"
"github.com/actiontech/dtle/api/models"
"github.com/actiontech/dtle/driver/mysql/sql"
)
const (
DB_TYPE_MYSQL = "MySQL"
DB_TYPE_ORACLE = "Oracle"
)
// @Id ListDatabaseSchemasV2
// @Description list schemas of database source instance.
// @Tags database
// @Security ApiKeyAuth
// @Param database_type query string true "database_type"
// @Param host query string true "database host"
// @Param port query int true "database port"
// @Param user query string true "database user"
// @Param password query string true "database password"
// @Param service_name query string false "database service_name"
// @Param character_set query string false "database character set"
// @Param is_password_encrypted query bool false "indecate that database password is encrypted or not"
// @Success 200 {object} models.ListSchemasRespV2
// @Router /v2/database/schemas [get]
func ListDatabaseSchemasV2(c echo.Context) error {
logger := handler.NewLogger().Named("ListDatabaseSchemasV2")
reqParam := new(models.ListDatabaseSchemasReqV2)
err := handler.BindAndValidate(logger, c, reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(err))
}
replicateDoDb := make([]*models.SchemaItem, 0)
switch reqParam.DatabaseType {
case DB_TYPE_MYSQL:
replicateDoDb, err = listMySQLSchema(logger, reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(fmt.Errorf("list %s schema failed : %v", DB_TYPE_MYSQL, err)))
}
case DB_TYPE_ORACLE:
replicateDoDb, err = listOracleSchema(logger, reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(fmt.Errorf("list %s schema failed : %v", DB_TYPE_ORACLE, err)))
}
}
return c.JSON(http.StatusOK, &models.ListSchemasRespV2{
Schemas: replicateDoDb,
BaseResp: models.BuildBaseResp(nil),
})
}
func listMySQLSchema(logger hclog.Logger, reqParam *models.ListDatabaseSchemasReqV2) ([]*models.SchemaItem, error) {
uri, err := buildMysqlUri(reqParam.Host, reqParam.User, reqParam.Password,
reqParam.CharacterSet, reqParam.Port, reqParam.IsPasswordEncrypted)
if err != nil {
return nil, fmt.Errorf("build database Uri failed: %v", err)
}
db, err := sql.CreateDB(uri)
if err != nil {
return nil, err
}
defer db.Close()
logger.Info("get schemas and tables from mysql")
dbs, err := sql.ShowDatabases(db)
if err != nil {
return nil, err
}
replicateDoDb := make([]*models.SchemaItem, 0)
for _, dbName := range dbs {
tbs, err := sql.ShowTables(db, dbName, true)
if err != nil {
return nil, err
}
tables := []*models.TableItem{}
for _, t := range tbs {
if strings.ToLower(t.TableType) == "view" {
continue
}
tb := &models.TableItem{
TableName: t.TableName,
}
tables = append(tables, tb)
}
schema := &models.SchemaItem{
SchemaName: dbName,
Tables: tables,
}
replicateDoDb = append(replicateDoDb, schema)
}
return replicateDoDb, nil
}
func listOracleSchema(logger hclog.Logger, reqParam *models.ListDatabaseSchemasReqV2) ([]*models.SchemaItem, error) {
if reqParam.IsPasswordEncrypted && reqParam.Password != "" {
realPwd, err := handler.DecryptPassword(reqParam.Password, g.RsaPrivateKey)
if nil != err {
return nil, err
}
reqParam.Password = realPwd
}
oracleDb, err := config.NewDB(context.TODO(), &config.OracleConfig{
User: reqParam.User,
Password: reqParam.Password,
Host: reqParam.Host,
Port: reqParam.Port,
ServiceName: reqParam.ServiceName,
})
if err != nil {
return nil, err
}
defer oracleDb.Close()
logger.Info("get schemas and tables from oracle")
schemas, err := oracleDb.GetSchemas()
if err != nil {
return nil, fmt.Errorf("get oracle schemas err : %v", err)
}
replicateDoDb := make([]*models.SchemaItem, 0)
for _, schema := range schemas {
tableNames, err := oracleDb.GetTables(schema)
if err != nil {
return nil, fmt.Errorf("get oracle schema %v tables failed: %v", schema, err)
}
tables := []*models.TableItem{}
for _, tableName := range tableNames {
tb := &models.TableItem{
TableName: tableName,
}
tables = append(tables, tb)
}
schema := &models.SchemaItem{
SchemaName: schema,
Tables: tables,
}
replicateDoDb = append(replicateDoDb, schema)
}
return replicateDoDb, nil
}
// @Id ListDatabaseColumnsV2
// @Description list columns of database source instance.
// @Tags database
// @Security ApiKeyAuth
// @Param host query string true "database host"
// @Param port query int true "database port"
// @Param user query string true "database user"
// @Param password query string true "database password"
// @Param database_type query string true "database_type"
// @Param service_name query string false "database service_name"
// @Param schema query string true "database schema"
// @Param table query string true "database table"
// @Param character_set query string false "database character set"
// @Param is_password_encrypted query bool false "indecate that database password is encrypted or not"
// @Success 200 {object} models.ListColumnsRespV2
// @Router /v2/database/columns [get]
func ListDatabaseColumnsV2(c echo.Context) error {
logger := handler.NewLogger().Named("ListDatabaseColumnsV2")
reqParam := new(models.ListColumnsReqV2)
err := handler.BindAndValidate(logger, c, reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(err))
}
columns := make([]string, 0)
switch reqParam.DatabaseType {
case DB_TYPE_MYSQL:
columns, err = listMySQLColumns(logger, reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(fmt.Errorf("list %s columns failed : %v", DB_TYPE_MYSQL, err)))
}
case DB_TYPE_ORACLE:
if reqParam.IsPasswordEncrypted && reqParam.Password != "" {
realPwd, err := handler.DecryptPassword(reqParam.Password, g.RsaPrivateKey)
if nil != err {
return c.JSON(http.StatusOK, &models.ConnectionRespV2{
BaseResp: models.BuildBaseResp(err),
})
}
reqParam.Password = realPwd
}
oracleDb, err := config.NewDB(context.TODO(), &config.OracleConfig{
User: reqParam.User,
Password: reqParam.Password,
Host: reqParam.Host,
Port: reqParam.Port,
ServiceName: reqParam.ServiceName,
})
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(fmt.Errorf("list %s columns failed : %v", DB_TYPE_ORACLE, err)))
}
defer oracleDb.Close()
columns, err = oracleDb.GetColumns(reqParam.Schema, reqParam.Table)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(fmt.Errorf("list %s columns failed : %v", DB_TYPE_ORACLE, err)))
}
}
return c.JSON(http.StatusOK, &models.ListColumnsRespV2{
Columns: columns,
BaseResp: models.BuildBaseResp(nil),
})
}
func listMySQLColumns(logger hclog.Logger, reqParam *models.ListColumnsReqV2) ([]string, error) {
uri, err := buildMysqlUri(reqParam.Host, reqParam.User, reqParam.Password,
reqParam.CharacterSet, int(reqParam.Port), reqParam.IsPasswordEncrypted)
if err != nil {
return nil, fmt.Errorf("build database Uri failed: %v", err)
}
db, err := sql.CreateDB(uri)
if err != nil {
return nil, err
}
defer db.Close()
logger.Info("get columns")
columns, err := sql.ListColumns(db, reqParam.Schema, reqParam.Table)
if err != nil {
return nil, err
}
return columns, nil
}
func buildMysqlUri(host, user, pwd, characterSet string, port int, isMysqlPasswordEncrypted bool) (string, error) {
mysqlConnectionConfig := mysqlconfig.ConnectionConfig{
Host: host,
Port: port,
User: user,
Password: pwd,
Charset: characterSet,
}
if "" == mysqlConnectionConfig.Charset {
mysqlConnectionConfig.Charset = "utf8"
}
if "" != mysqlConnectionConfig.Password && isMysqlPasswordEncrypted {
realPwd, err := handler.DecryptPassword(mysqlConnectionConfig.Password, g.RsaPrivateKey)
if nil != err {
return "", fmt.Errorf("DecryptPassword failed: %v", err)
}
mysqlConnectionConfig.Password = realPwd
}
uri := mysqlConnectionConfig.GetDBUri()
return uri, nil
}
// @Id ConnectionV2
// @Description connect to database instance.
// @Tags database
// @Security ApiKeyAuth
// @Param host query string true "database host"
// @Param port query int true "database port"
// @Param user query string true "database user"
// @Param password query string true "database password"
// @Param database_type query string true "database_type"
// @Param service_name query string false "database service_name"
// @Param is_password_encrypted query bool false "indecate that database password is encrypted or not"
// @Success 200 {object} models.ConnectionRespV2
// @Router /v2/database/instance_connection [get]
func ConnectionV2(c echo.Context) error {
logger := handler.NewLogger().Named("ConnectionV2")
reqParam := new(models.ConnectionReqV2)
if err := handler.BindAndValidate(logger, c, reqParam); err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(err))
}
err := connectDatabase(reqParam)
if err != nil {
return c.JSON(http.StatusInternalServerError, models.BuildBaseResp(err))
}
return c.JSON(http.StatusOK, &models.ConnectionRespV2{
BaseResp: models.BuildBaseResp(nil),
})
}
func connectDatabase(reqParam *models.ConnectionReqV2) error {
var db *gosql.DB
var err error
switch reqParam.DatabaseType {
case DB_TYPE_MYSQL:
uri, err := buildMysqlUri(reqParam.Host, reqParam.User, reqParam.Password,
"", int(reqParam.Port), reqParam.IsPasswordEncrypted)
if err != nil {
return fmt.Errorf("build database Uri failed: %v", err)
}
db, err = sql.CreateDB(uri)
case DB_TYPE_ORACLE:
if reqParam.IsPasswordEncrypted && reqParam.Password != "" {
realPwd, err := handler.DecryptPassword(reqParam.Password, g.RsaPrivateKey)
if nil != err {
return err
}
reqParam.Password = realPwd
}
db, err = config.OpenDb(&config.OracleConfig{
User: reqParam.User,
Password: reqParam.Password,
Host: reqParam.Host,
Port: reqParam.Port,
ServiceName: reqParam.ServiceName,
})
default:
return fmt.Errorf("data type %v is unsupport", reqParam.DatabaseType)
}
if err != nil {
return fmt.Errorf("open db failed: %v", err)
}
defer db.Close()
err = db.Ping()
if err != nil {
return err
}
return nil
}