helpers.go — fiber Source File

Source Code

// ⚡️ Fiber is an Express inspired web framework written in Go with ☕️
// 🤖 GitHub Repository: https://github.com/gofiber/fiber
// 📌 API Documentation: https://docs.gofiber.io

package fiber

import (
	"bytes"
	"crypto/tls"
	"errors"
	"fmt"
	"io"
	"net"
	"os"
	"path/filepath"
	"reflect"
	"slices"
	"strconv"
	"strings"
	"sync"
	"time"
	"unsafe"

	"github.com/gofiber/utils/v2"

	"github.com/gofiber/fiber/v3/log"

	"github.com/valyala/bytebufferpool"
	"github.com/valyala/fasthttp"
)

// acceptedType is a struct that holds the parsed value of an Accept header
// along with quality, specificity, parameters, and order.
// Used for sorting accept headers.
type acceptedType struct {
	params      headerParams
	spec        string
	quality     float64
	specificity int
	order       int
}

const noCacheValue = "no-cache"

// Pre-allocated byte slices for accept header parsing
var (
	semicolonQEquals = []byte(";q=")
	wildcardAll      = []byte("*/*")
	wildcardSuffix   = []byte("/*")
)

type headerParams map[string][]byte

// getTLSConfig returns a net listener's tls config
func getTLSConfig(ln net.Listener) *tls.Config {
	if ln == nil {
		return nil
	}

	type tlsConfigProvider interface {
// ... (1032 more lines)