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db_teams.go
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db_teams.go
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package database
import (
"database/sql"
"fmt"
"net"
"strings"
"github.com/inconshreveable/log15"
"github.com/nsec/askgod/api"
"github.com/nsec/askgod/internal/utils"
)
// GetTeams retrieves all the team entries from the database
func (db *DB) GetTeams() ([]api.AdminTeam, error) {
// Return a list of teams
resp := []api.AdminTeam{}
// Query all the teams from the database
rows, err := db.Query("SELECT id, name, country, website, notes, subnets, tags FROM team ORDER BY id ASC;")
if err != nil {
return nil, err
}
defer rows.Close()
// Iterate through the results
for rows.Next() {
row := api.AdminTeam{}
tags := ""
err := rows.Scan(&row.ID, &row.Name, &row.Country, &row.Website, &row.Notes, &row.Subnets, &tags)
if err != nil {
return nil, err
}
row.Tags, err = utils.ParseTags(tags)
if err != nil {
return nil, err
}
resp = append(resp, row)
}
// Check for any error that might have happened
err = rows.Err()
if err != nil {
return nil, err
}
return resp, nil
}
// GetTeam retrieves a single team entry from the database
func (db *DB) GetTeam(id int64) (*api.AdminTeam, error) {
// Query the database entry
row := api.AdminTeam{}
tags := ""
err := db.QueryRow("SELECT id, name, country, website, notes, subnets, tags FROM team WHERE id=$1;", id).Scan(
&row.ID, &row.Name, &row.Country, &row.Website, &row.Notes, &row.Subnets, &tags)
if err != nil {
return nil, err
}
row.Tags, err = utils.ParseTags(tags)
if err != nil {
return nil, err
}
return &row, nil
}
// GetTeamForIP retrieves a single team entry for the provided IP
func (db *DB) GetTeamForIP(ip net.IP) (*api.AdminTeam, error) {
// Get all the teams
teams, err := db.GetTeams()
if err != nil {
return nil, err
}
var resp *api.AdminTeam
for _, team := range teams {
if team.Subnets == "" {
continue
}
subnets := strings.Split(team.Subnets, ",")
for _, subnet := range subnets {
subnet = strings.TrimSpace(subnet)
_, netSubnet, err := net.ParseCIDR(subnet)
if err != nil {
db.logger.Error("Bad subnet", log15.Ctx{"error": err})
continue
}
if netSubnet.Contains(ip) {
if resp != nil {
db.logger.Error("More than one team for client IP", log15.Ctx{"ip": ip.String()})
return nil, fmt.Errorf("More than one team for client IP")
}
newTeam := api.AdminTeam(team)
resp = &newTeam
}
}
}
if resp == nil {
return nil, sql.ErrNoRows
}
return resp, nil
}
// CreateTeam adds a new team to the database
func (db *DB) CreateTeam(team api.AdminTeamPost) (int64, error) {
id := int64(-1)
// Create the database entry
err := db.QueryRow("INSERT INTO team (name, country, website, notes, subnets, tags) VALUES ($1, $2, $3, $4, $5, $6) RETURNING id",
team.Name, team.Country, team.Website, team.Notes, team.Subnets, utils.PackTags(team.Tags)).Scan(&id)
if err != nil {
return -1, err
}
return id, nil
}
// UpdateTeam updates an existing team
func (db *DB) UpdateTeam(id int64, team api.AdminTeamPut) error {
// Update the database entry
result, err := db.Exec("UPDATE team SET name=$1, country=$2, website=$3, notes=$4, subnets=$5, tags=$6 WHERE id=$7;",
team.Name, team.Country, team.Website, team.Notes, team.Subnets, utils.PackTags(team.Tags), id)
if err != nil {
return err
}
// Check that a change indeed happened
count, err := result.RowsAffected()
if err != nil {
return err
}
if count == 0 {
return sql.ErrNoRows
}
return nil
}
// DeleteTeam deletes a single team from the database
func (db *DB) DeleteTeam(id int64) error {
// Delete the database entry
result, err := db.Exec("DELETE FROM team WHERE id=$1;", id)
if err != nil {
return err
}
// Check that a change indeed happened
count, err := result.RowsAffected()
if err != nil {
return err
}
if count == 0 {
return sql.ErrNoRows
}
return nil
}
// ClearTeams wipes all team entries from the database
func (db *DB) ClearTeams() error {
// Start a transaction
tx, err := db.Begin()
if err != nil {
return err
}
// Wipe the table
_, err = tx.Exec("DELETE FROM team;")
if err != nil {
tx.Rollback()
return err
}
// Reset the sequence
_, err = tx.Exec("ALTER SEQUENCE team_id_seq RESTART;")
if err != nil {
tx.Rollback()
return err
}
// Commit
err = tx.Commit()
if err != nil {
return err
}
return nil
}