/
database.go
143 lines (119 loc) · 3.32 KB
/
database.go
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package server
import (
"database/sql"
"errors"
"fmt"
"log"
// Postgres driver
_ "github.com/lib/pq"
)
// InitDB initializes the database
func InitDB(dataSourceName string) (*sql.DB, error) {
db, err := sql.Open("postgres", dataSourceName)
if err != nil {
log.Panic(err)
}
if err = db.Ping(); err != nil {
log.Panic(err)
}
return db, err
}
func addRow(db *sql.DB, hash string, groupname string, username string, description string, created string) error {
if !isValidWebhookID(hash) {
return errors.New("invalid webhook id")
}
tx, err := db.Begin()
if err != nil {
return err
}
defer func() {
switch err {
case nil:
err = tx.Commit()
default:
tx.Rollback()
}
}()
sqlStatement := fmt.Sprintf("INSERT INTO qaas (hash, groupname, username, description, created) VALUES ($1, $2, $3, $4, $5)")
if _, err = tx.Exec(sqlStatement, hash, groupname, username, description, created); err != nil {
return err
}
return err
}
func deleteRow(db *sql.DB, hash string, groupname string, username string) error {
if !isValidWebhookID(hash) {
return errors.New("invalid webhook id")
}
tx, err := db.Begin()
if err != nil {
return err
}
defer func() {
switch err {
case nil:
err = tx.Commit()
default:
tx.Rollback()
}
}()
sqlStatement := fmt.Sprintf("DELETE FROM qaas WHERE hash = $1 AND groupname = $2 AND username = $3")
if _, err = tx.Exec(sqlStatement, hash, groupname, username); err != nil {
return err
}
return err
}
// Item corresponds to a row in the qaas database
type Item struct {
ID int `json:"-"` // Do not output this one
Hash string `json:"hash"`
Groupname string `json:"groupname"`
Username string `json:"username"`
Description string `json:"description"`
Created string `json:"created"`
URL string `json:"url"`
}
// Find the rows with a specific hash (should be 1)
func getRow(db *sql.DB, qaasHost string, qaasExternalPort string, hash string) ([]Item, error) {
rows, err := db.Query("SELECT id, hash, groupname, username, description, created FROM qaas WHERE hash = $1", hash)
if err != nil {
return nil, err
}
defer rows.Close()
var list []Item
for rows.Next() {
p := Item{}
if err := rows.Scan(&p.ID, &p.Hash, &p.Groupname, &p.Username, &p.Description, &p.Created); err != nil {
return nil, err
}
p.URL = fmt.Sprintf("https://%s:%s/%s", qaasHost, qaasExternalPort, p.Hash)
list = append(list, p)
}
if rows.Err() != nil {
return nil, err
}
if len(list) > 1 {
return nil, fmt.Errorf("invalid getRow result: list should have length 1 but has length %d", len(list))
}
return list, nil
}
// Find the rows for a specific groupname, username
func getListRows(db *sql.DB, qaasHost string, qaasExternalPort string, groupname string, username string) ([]Item, error) {
rows, err := db.Query("SELECT id, hash, groupname, username, description, created FROM qaas WHERE groupname = $1, username = $2", groupname, username)
if err != nil {
return nil, err
}
defer rows.Close()
var list []Item
for rows.Next() {
p := Item{}
if err := rows.Scan(&p.ID, &p.Hash, &p.Groupname, &p.Username, &p.Description, &p.Created); err != nil {
return nil, err
}
p.URL = fmt.Sprintf("https://%s:%s/%s", qaasHost, qaasExternalPort, p.Hash)
list = append(list, p)
}
if rows.Err() != nil {
return nil, err
}
return list, nil
}