/
config.go
201 lines (187 loc) · 7.03 KB
/
config.go
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package http3
import (
"github.com/aacfactory/errors"
"github.com/aacfactory/fns/commons/bytex"
"github.com/aacfactory/json"
"github.com/quic-go/quic-go"
"strings"
"time"
)
type Config struct {
EnableDatagrams bool `json:"enableDatagrams"`
MaxRequestHeaderSize string `json:"maxRequestHeaderSize"`
MaxRequestBodySize string `json:"maxRequestBodySize"`
AdditionalSettings map[uint64]uint64 `json:"additionalSettings"`
Quic *QuicConfig `json:"quic"`
Client ClientConfig `json:"client"`
Alternative AlternativeConfig `json:"alternative"`
}
func (config *Config) QuicConfig() (quicConfig *quic.Config, err error) {
if config.Quic == nil {
return
}
quicConfig, err = config.Quic.Convert(config.EnableDatagrams)
return
}
func (config *Config) ClientConfig() (clientConfig ClientConfig) {
clientConfig = config.Client
return
}
type AlternativeConfig struct {
Name string `json:"name"`
Options json.RawMessage `json:"options"`
}
type DialerConfig struct {
CacheSize int `json:"cacheSize"`
ExpireSeconds int `json:"expireSeconds"`
}
type ClientConfig struct {
MaxConnsPerHost int `json:"maxConnsPerHost"`
MaxResponseHeaderSize string `json:"maxResponseHeaderSize"`
Timeout string `json:"timeout"`
Dialer DialerConfig `json:"dialer"`
}
func (config *ClientConfig) MaxConnectionsPerHost() (n int) {
if config.MaxConnsPerHost < 1 {
config.MaxConnsPerHost = 64
}
n = config.MaxConnsPerHost
return
}
func (config *ClientConfig) MaxResponseHeaderByteSize() (n uint64, err error) {
maxResponseHeaderSize := strings.TrimSpace(config.MaxResponseHeaderSize)
if maxResponseHeaderSize == "" {
maxResponseHeaderSize = "4KB"
}
n, err = bytex.ParseBytes(maxResponseHeaderSize)
if err != nil {
err = errors.Warning("maxResponseHeaderBytes is invalid").WithCause(err).WithMeta("hit", "format must be bytes")
return
}
return
}
func (config *ClientConfig) TimeoutDuration() (n time.Duration, err error) {
timeout := strings.TrimSpace(config.Timeout)
if timeout == "" {
timeout = "2s"
}
n, err = time.ParseDuration(timeout)
if err != nil {
err = errors.Warning("timeout is invalid").WithCause(err).WithMeta("hit", "format must be time.Duration")
return
}
return
}
type QuicConfig struct {
Versions []string `json:"versions"`
HandshakeIdleTimeout string `json:"handshakeIdleTimeout"`
MaxIdleTimeout string `json:"maxIdleTimeout"`
InitialStreamReceiveWindow string `json:"initialStreamReceiveWindow"`
MaxStreamReceiveWindow string `json:"maxStreamReceiveWindow"`
InitialConnectionReceiveWindow string `json:"initialConnectionReceiveWindow"`
MaxConnectionReceiveWindow string `json:"maxConnectionReceiveWindow"`
MaxIncomingStreams int64 `json:"maxIncomingStreams"`
MaxIncomingUniStreams int64 `json:"maxIncomingUniStreams"`
KeepAlivePeriod string `json:"keepAlivePeriod"`
DisablePathMTUDiscovery bool `json:"disablePathMtuDiscovery"`
Allow0RTT bool `json:"allow0RTT"`
}
func (config *QuicConfig) Convert(enableDatagrams bool) (quicConfig *quic.Config, err error) {
var versions []quic.VersionNumber
if config.Versions != nil && len(config.Versions) > 0 {
versions = make([]quic.VersionNumber, 0, 1)
for _, version := range config.Versions {
version = strings.ToUpper(strings.TrimSpace(version))
switch version {
case "V1":
versions = append(versions, quic.Version1)
break
case "V2":
versions = append(versions, quic.Version2)
break
default:
break
}
}
if len(versions) == 0 {
err = errors.Warning("versions is invalid").WithMeta("hit", "see quic-go for more details")
return
}
}
handshakeIdleTimeout := time.Duration(0)
if config.HandshakeIdleTimeout != "" {
handshakeIdleTimeout, err = time.ParseDuration(strings.TrimSpace(config.HandshakeIdleTimeout))
if err != nil {
err = errors.Warning("handshakeIdleTimeout is invalid").WithCause(err).WithMeta("hit", "format must be time.Duration")
return
}
}
maxIdleTimeout := time.Duration(0)
if config.MaxIdleTimeout != "" {
maxIdleTimeout, err = time.ParseDuration(strings.TrimSpace(config.MaxIdleTimeout))
if err != nil {
err = errors.Warning("maxIdleTimeout is invalid").WithCause(err).WithMeta("hit", "format must be time.Duration")
return
}
}
initialStreamReceiveWindow := uint64(0)
if config.InitialStreamReceiveWindow != "" {
initialStreamReceiveWindow, err = bytex.ParseBytes(strings.TrimSpace(config.InitialStreamReceiveWindow))
if err != nil {
err = errors.Warning("initialStreamReceiveWindow is invalid").WithCause(err).WithMeta("hit", "format must be bytes")
return
}
}
maxStreamReceiveWindow := uint64(0)
if config.MaxStreamReceiveWindow != "" {
maxStreamReceiveWindow, err = bytex.ParseBytes(strings.TrimSpace(config.MaxStreamReceiveWindow))
if err != nil {
err = errors.Warning("maxStreamReceiveWindow is invalid").WithCause(err).WithMeta("hit", "format must be bytes")
return
}
}
initialConnectionReceiveWindow := uint64(0)
if config.InitialConnectionReceiveWindow != "" {
initialConnectionReceiveWindow, err = bytex.ParseBytes(strings.TrimSpace(config.InitialConnectionReceiveWindow))
if err != nil {
err = errors.Warning("initialConnectionReceiveWindow is invalid").WithCause(err).WithMeta("hit", "format must be bytes")
return
}
}
maxConnectionReceiveWindow := uint64(0)
if config.MaxConnectionReceiveWindow != "" {
maxConnectionReceiveWindow, err = bytex.ParseBytes(strings.TrimSpace(config.MaxConnectionReceiveWindow))
if err != nil {
err = errors.Warning("maxConnectionReceiveWindow is invalid").WithCause(err).WithMeta("hit", "format must be bytes")
return
}
}
keepAlivePeriod := time.Duration(0)
if config.KeepAlivePeriod != "" {
keepAlivePeriod, err = time.ParseDuration(strings.TrimSpace(config.KeepAlivePeriod))
if err != nil {
err = errors.Warning("keepAlivePeriod is invalid").WithCause(err).WithMeta("hit", "format must be time.Duration")
return
}
}
quicConfig = &quic.Config{
Versions: versions,
HandshakeIdleTimeout: handshakeIdleTimeout,
MaxIdleTimeout: maxIdleTimeout,
RequireAddressValidation: nil,
TokenStore: nil,
InitialStreamReceiveWindow: initialStreamReceiveWindow,
MaxStreamReceiveWindow: maxStreamReceiveWindow,
InitialConnectionReceiveWindow: initialConnectionReceiveWindow,
MaxConnectionReceiveWindow: maxConnectionReceiveWindow,
AllowConnectionWindowIncrease: nil,
MaxIncomingStreams: config.MaxIncomingStreams,
MaxIncomingUniStreams: config.MaxIncomingUniStreams,
KeepAlivePeriod: keepAlivePeriod,
DisablePathMTUDiscovery: config.DisablePathMTUDiscovery,
Allow0RTT: config.Allow0RTT,
EnableDatagrams: enableDatagrams,
Tracer: nil,
}
return
}