sacrebleu-dns/utils/sql.go

101 lines
2.9 KiB
Go

package utils
import (
"fmt"
"time"
"github.com/outout14/sacrebleu-api/api/types"
"github.com/sirupsen/logrus"
"gorm.io/driver/mysql"
"gorm.io/driver/postgres"
"gorm.io/gorm"
"gorm.io/gorm/logger"
)
//DB SQL database as global var
var db *gorm.DB
//SQLDatabase Initialize the SQL Database
//Requires a conf struct
func SQLDatabase(conf *Conf) *gorm.DB {
logrus.WithFields(logrus.Fields{"database": conf.Database.Db, "driver": conf.Database.Type}).Infof("SQL : Connection to DB")
var gormLogLevel logger.LogLevel
//Set GORM log level based on conf AppMode
if conf.AppMode != "production" {
gormLogLevel = logger.Info
} else {
gormLogLevel = logger.Silent
}
//Connect to the Database
if conf.Database.Type == "postgresql" {
dsn := fmt.Sprintf("user=%s password=%s host=%s port=%s database=%s sslmode=disable", conf.Database.Username, conf.Database.Password, conf.Database.Host, conf.Database.Port, conf.Database.Db)
DB, err := gorm.Open(postgres.Open(dsn), &gorm.Config{
Logger: logger.Default.LogMode(gormLogLevel),
})
CheckErr(err)
db = DB
return DB
}
dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local", conf.Database.Username, conf.Database.Password, conf.Database.Host, conf.Database.Port, conf.Database.Db)
DB, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
Logger: logger.Default.LogMode(gormLogLevel),
})
CheckErr(err)
db = DB
return DB
}
//Check for a record in the SQL database
func sqlCheckForRecord(redisKey string, dKey string, entry types.Record) ([]types.Record, bool) {
var records []types.Record
rows, err := db.Where("fqdn = ? AND type = ?", dKey, entry.Qtype).Model(&types.Record{}).Rows()
if err != nil {
return records, true
}
defer rows.Close()
for rows.Next() {
var entry types.Record
db.ScanRows(rows, &entry)
if entry.Content != "" { //If Record content not empty
records = append(records, entry)
}
}
//Cache the request in Redis if any result
_ = redisSet(redisDb, redisKey, 30*time.Second, records) //Set it in the Redis database for 30sec
return records, false
}
//Check for a wildcard record in the SQL database
func sqlCheckForReverse6Wildcard(redisKey string, dKey string, entry types.Record) []types.Record {
returnedEntry := entry
rows, err := db.Table("records").Select("id", "content", "fqdn").Where("fqdn LIKE ?", "*%.ip6.arpa.").Rows()
DbgErr(err) //Check for empty row or non important error
var records []types.Record
//For each result check if it match the reverse IP
for rows.Next() {
rows.Scan(&returnedEntry.ID, &returnedEntry.Content, &returnedEntry.Fqdn)
CheckErr(err)
//Check if the record is matching the reversed IP
if checkReverse6(entry, returnedEntry) {
logrus.Debug("REVERSE : Correct wildcard reverse.")
//Cache the request in Redis if any result
_ = redisSet(redisDb, redisKey, 10*time.Second, returnedEntry)
records = append(records, entry)
}
logrus.Debug("REVERSE : WRONG wildcard reverse .")
}
return records
}