fiber_docs/router/parser.go
2023-04-11 22:43:48 +02:00

68 lines
2.0 KiB
Go

package router
import (
"reflect"
"strings"
_ "unsafe"
"git.ma-al.com/goc_marek/fiber_docs/constants"
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/utils"
)
//go:linkname decoderBuilder github.com/gofiber/fiber/v2.decoderBuilder
func decoderBuilder(parserConfig fiber.ParserConfig) interface{}
//go:linkname equalFieldType github.com/gofiber/fiber/v2.equalFieldType
func equalFieldType(out interface{}, kind reflect.Kind, key string) bool
func ParseToStruct(aliasTag string, out interface{}, data map[string][]string) error {
decoder := decoderBuilder(fiber.ParserConfig{
SetAliasTag: aliasTag,
IgnoreUnknownKeys: true,
})
result := reflect.ValueOf(decoder).
MethodByName("Decode").
Call([]reflect.Value{reflect.ValueOf(out), reflect.ValueOf(data)})
switch result[0].Interface().(type) {
case error:
return result[0].Interface().(error)
case nil:
return nil
}
return nil
}
func HeaderParser(c *fiber.Ctx, model interface{}) error {
headerData := make(map[string][]string)
c.Request().Header.VisitAll(func(key, val []byte) {
k := utils.UnsafeString(key)
v := utils.UnsafeString(val)
if strings.Contains(v, ",") && equalFieldType(model, reflect.Slice, k) {
values := strings.Split(v, ",")
for i := 0; i < len(values); i++ {
headerData[k] = append(headerData[k], values[i])
}
} else {
headerData[k] = append(headerData[k], v)
}
})
return ParseToStruct(constants.HEADER, model, headerData)
}
func ParamsParser(c *fiber.Ctx, model interface{}) error {
params := make(map[string][]string)
for _, param := range c.Route().Params {
params[param] = append(params[param], c.Params(param))
}
return ParseToStruct(constants.URI, model, params)
}
func CookiesParser(c *fiber.Ctx, model interface{}) error {
params := make(map[string][]string)
c.Request().Header.VisitAllCookie(func(key, value []byte) {
params[string(key)] = append(params[string(key)], string(value))
})
return ParseToStruct(constants.COOKIE, model, params)
}