mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-24 20:56:39 +00:00
517 lines
9.9 KiB
Go
517 lines
9.9 KiB
Go
package schema
|
|
|
|
import (
|
|
"bytes"
|
|
"database/sql"
|
|
"fmt"
|
|
"net"
|
|
"reflect"
|
|
"strconv"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/puzpuzpuz/xsync/v3"
|
|
"github.com/vmihailenco/msgpack/v5"
|
|
|
|
"github.com/uptrace/bun/dialect/sqltype"
|
|
"github.com/uptrace/bun/extra/bunjson"
|
|
"github.com/uptrace/bun/internal"
|
|
)
|
|
|
|
var scannerType = reflect.TypeOf((*sql.Scanner)(nil)).Elem()
|
|
|
|
type ScannerFunc func(dest reflect.Value, src interface{}) error
|
|
|
|
var scanners []ScannerFunc
|
|
|
|
func init() {
|
|
scanners = []ScannerFunc{
|
|
reflect.Bool: scanBool,
|
|
reflect.Int: scanInt64,
|
|
reflect.Int8: scanInt64,
|
|
reflect.Int16: scanInt64,
|
|
reflect.Int32: scanInt64,
|
|
reflect.Int64: scanInt64,
|
|
reflect.Uint: scanUint64,
|
|
reflect.Uint8: scanUint64,
|
|
reflect.Uint16: scanUint64,
|
|
reflect.Uint32: scanUint64,
|
|
reflect.Uint64: scanUint64,
|
|
reflect.Uintptr: scanUint64,
|
|
reflect.Float32: scanFloat64,
|
|
reflect.Float64: scanFloat64,
|
|
reflect.Complex64: nil,
|
|
reflect.Complex128: nil,
|
|
reflect.Array: nil,
|
|
reflect.Interface: scanInterface,
|
|
reflect.Map: scanJSON,
|
|
reflect.Ptr: nil,
|
|
reflect.Slice: scanJSON,
|
|
reflect.String: scanString,
|
|
reflect.Struct: scanJSON,
|
|
reflect.UnsafePointer: nil,
|
|
}
|
|
}
|
|
|
|
var scannerCache = xsync.NewMapOf[reflect.Type, ScannerFunc]()
|
|
|
|
func FieldScanner(dialect Dialect, field *Field) ScannerFunc {
|
|
if field.Tag.HasOption("msgpack") {
|
|
return scanMsgpack
|
|
}
|
|
if field.Tag.HasOption("json_use_number") {
|
|
return scanJSONUseNumber
|
|
}
|
|
if field.StructField.Type.Kind() == reflect.Interface {
|
|
switch strings.ToUpper(field.UserSQLType) {
|
|
case sqltype.JSON, sqltype.JSONB:
|
|
return scanJSONIntoInterface
|
|
}
|
|
}
|
|
return Scanner(field.StructField.Type)
|
|
}
|
|
|
|
func Scanner(typ reflect.Type) ScannerFunc {
|
|
if v, ok := scannerCache.Load(typ); ok {
|
|
return v
|
|
}
|
|
|
|
fn := scanner(typ)
|
|
|
|
if v, ok := scannerCache.LoadOrStore(typ, fn); ok {
|
|
return v
|
|
}
|
|
return fn
|
|
}
|
|
|
|
func scanner(typ reflect.Type) ScannerFunc {
|
|
kind := typ.Kind()
|
|
|
|
if kind == reflect.Ptr {
|
|
if fn := Scanner(typ.Elem()); fn != nil {
|
|
return PtrScanner(fn)
|
|
}
|
|
}
|
|
|
|
switch typ {
|
|
case bytesType:
|
|
return scanBytes
|
|
case timeType:
|
|
return scanTime
|
|
case ipType:
|
|
return scanIP
|
|
case ipNetType:
|
|
return scanIPNet
|
|
case jsonRawMessageType:
|
|
return scanBytes
|
|
}
|
|
|
|
if typ.Implements(scannerType) {
|
|
return scanScanner
|
|
}
|
|
|
|
if kind != reflect.Ptr {
|
|
ptr := reflect.PointerTo(typ)
|
|
if ptr.Implements(scannerType) {
|
|
return addrScanner(scanScanner)
|
|
}
|
|
}
|
|
|
|
if typ.Kind() == reflect.Slice && typ.Elem().Kind() == reflect.Uint8 {
|
|
return scanBytes
|
|
}
|
|
|
|
return scanners[kind]
|
|
}
|
|
|
|
func scanBool(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetBool(false)
|
|
return nil
|
|
case bool:
|
|
dest.SetBool(src)
|
|
return nil
|
|
case int64:
|
|
dest.SetBool(src != 0)
|
|
return nil
|
|
case []byte:
|
|
f, err := strconv.ParseBool(internal.String(src))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetBool(f)
|
|
return nil
|
|
case string:
|
|
f, err := strconv.ParseBool(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetBool(f)
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanInt64(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetInt(0)
|
|
return nil
|
|
case int64:
|
|
dest.SetInt(src)
|
|
return nil
|
|
case uint64:
|
|
dest.SetInt(int64(src))
|
|
return nil
|
|
case []byte:
|
|
n, err := strconv.ParseInt(internal.String(src), 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetInt(n)
|
|
return nil
|
|
case string:
|
|
n, err := strconv.ParseInt(src, 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetInt(n)
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanUint64(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetUint(0)
|
|
return nil
|
|
case uint64:
|
|
dest.SetUint(src)
|
|
return nil
|
|
case int64:
|
|
dest.SetUint(uint64(src))
|
|
return nil
|
|
case []byte:
|
|
n, err := strconv.ParseUint(internal.String(src), 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetUint(n)
|
|
return nil
|
|
case string:
|
|
n, err := strconv.ParseUint(src, 10, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetUint(n)
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanFloat64(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetFloat(0)
|
|
return nil
|
|
case float64:
|
|
dest.SetFloat(src)
|
|
return nil
|
|
case []byte:
|
|
f, err := strconv.ParseFloat(internal.String(src), 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetFloat(f)
|
|
return nil
|
|
case string:
|
|
f, err := strconv.ParseFloat(src, 64)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
dest.SetFloat(f)
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanString(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetString("")
|
|
return nil
|
|
case string:
|
|
dest.SetString(src)
|
|
return nil
|
|
case []byte:
|
|
dest.SetString(string(src))
|
|
return nil
|
|
case time.Time:
|
|
dest.SetString(src.Format(time.RFC3339Nano))
|
|
return nil
|
|
case int64:
|
|
dest.SetString(strconv.FormatInt(src, 10))
|
|
return nil
|
|
case uint64:
|
|
dest.SetString(strconv.FormatUint(src, 10))
|
|
return nil
|
|
case float64:
|
|
dest.SetString(strconv.FormatFloat(src, 'G', -1, 64))
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanBytes(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
dest.SetBytes(nil)
|
|
return nil
|
|
case string:
|
|
dest.SetBytes([]byte(src))
|
|
return nil
|
|
case []byte:
|
|
clone := make([]byte, len(src))
|
|
copy(clone, src)
|
|
|
|
dest.SetBytes(clone)
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanTime(dest reflect.Value, src interface{}) error {
|
|
switch src := src.(type) {
|
|
case nil:
|
|
destTime := dest.Addr().Interface().(*time.Time)
|
|
*destTime = time.Time{}
|
|
return nil
|
|
case time.Time:
|
|
destTime := dest.Addr().Interface().(*time.Time)
|
|
*destTime = src
|
|
return nil
|
|
case string:
|
|
srcTime, err := internal.ParseTime(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
destTime := dest.Addr().Interface().(*time.Time)
|
|
*destTime = srcTime
|
|
return nil
|
|
case []byte:
|
|
srcTime, err := internal.ParseTime(internal.String(src))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
destTime := dest.Addr().Interface().(*time.Time)
|
|
*destTime = srcTime
|
|
return nil
|
|
default:
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
}
|
|
|
|
func scanScanner(dest reflect.Value, src interface{}) error {
|
|
return dest.Interface().(sql.Scanner).Scan(src)
|
|
}
|
|
|
|
func scanMsgpack(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
return scanNull(dest)
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
dec := msgpack.GetDecoder()
|
|
defer msgpack.PutDecoder(dec)
|
|
|
|
dec.Reset(bytes.NewReader(b))
|
|
return dec.DecodeValue(dest)
|
|
}
|
|
|
|
func scanJSON(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
return scanNull(dest)
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return bunjson.Unmarshal(b, dest.Addr().Interface())
|
|
}
|
|
|
|
func scanJSONUseNumber(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
return scanNull(dest)
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
dec := bunjson.NewDecoder(bytes.NewReader(b))
|
|
dec.UseNumber()
|
|
return dec.Decode(dest.Addr().Interface())
|
|
}
|
|
|
|
func scanIP(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
return scanNull(dest)
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ip := net.ParseIP(internal.String(b))
|
|
if ip == nil {
|
|
return fmt.Errorf("bun: invalid ip: %q", b)
|
|
}
|
|
|
|
ptr := dest.Addr().Interface().(*net.IP)
|
|
*ptr = ip
|
|
|
|
return nil
|
|
}
|
|
|
|
func scanIPNet(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
return scanNull(dest)
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
_, ipnet, err := net.ParseCIDR(internal.String(b))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ptr := dest.Addr().Interface().(*net.IPNet)
|
|
*ptr = *ipnet
|
|
|
|
return nil
|
|
}
|
|
|
|
func addrScanner(fn ScannerFunc) ScannerFunc {
|
|
return func(dest reflect.Value, src interface{}) error {
|
|
if !dest.CanAddr() {
|
|
return fmt.Errorf("bun: Scan(nonaddressable %T)", dest.Interface())
|
|
}
|
|
return fn(dest.Addr(), src)
|
|
}
|
|
}
|
|
|
|
func toBytes(src interface{}) ([]byte, error) {
|
|
switch src := src.(type) {
|
|
case string:
|
|
return internal.Bytes(src), nil
|
|
case []byte:
|
|
return src, nil
|
|
default:
|
|
return nil, fmt.Errorf("bun: got %T, wanted []byte or string", src)
|
|
}
|
|
}
|
|
|
|
func PtrScanner(fn ScannerFunc) ScannerFunc {
|
|
return func(dest reflect.Value, src interface{}) error {
|
|
if src == nil {
|
|
if !dest.CanAddr() {
|
|
if dest.IsNil() {
|
|
return nil
|
|
}
|
|
return fn(dest.Elem(), src)
|
|
}
|
|
|
|
if !dest.IsNil() {
|
|
dest.Set(reflect.New(dest.Type().Elem()))
|
|
}
|
|
return nil
|
|
}
|
|
|
|
if dest.IsNil() {
|
|
dest.Set(reflect.New(dest.Type().Elem()))
|
|
}
|
|
|
|
if dest.Kind() == reflect.Map {
|
|
return fn(dest, src)
|
|
}
|
|
|
|
return fn(dest.Elem(), src)
|
|
}
|
|
}
|
|
|
|
func scanNull(dest reflect.Value) error {
|
|
if nilable(dest.Kind()) && dest.IsNil() {
|
|
return nil
|
|
}
|
|
dest.Set(reflect.New(dest.Type()).Elem())
|
|
return nil
|
|
}
|
|
|
|
func scanJSONIntoInterface(dest reflect.Value, src interface{}) error {
|
|
if dest.IsNil() {
|
|
if src == nil {
|
|
return nil
|
|
}
|
|
|
|
b, err := toBytes(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return bunjson.Unmarshal(b, dest.Addr().Interface())
|
|
}
|
|
|
|
dest = dest.Elem()
|
|
if fn := Scanner(dest.Type()); fn != nil {
|
|
return fn(dest, src)
|
|
}
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
|
|
func scanInterface(dest reflect.Value, src interface{}) error {
|
|
if dest.IsNil() {
|
|
if src == nil {
|
|
return nil
|
|
}
|
|
dest.Set(reflect.ValueOf(src))
|
|
return nil
|
|
}
|
|
|
|
dest = dest.Elem()
|
|
if fn := Scanner(dest.Type()); fn != nil {
|
|
return fn(dest, src)
|
|
}
|
|
return scanError(dest.Type(), src)
|
|
}
|
|
|
|
func nilable(kind reflect.Kind) bool {
|
|
switch kind {
|
|
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func scanError(dest reflect.Type, src interface{}) error {
|
|
return fmt.Errorf("bun: can't scan %#v (%T) into %s", src, src, dest.String())
|
|
}
|