Transformers

This commit is contained in:
2023-11-18 00:23:40 +08:00
parent 2fc1ef89db
commit ff1f1dbc9d
13 changed files with 257 additions and 98 deletions

View File

@ -33,8 +33,8 @@ func InitServer() *fiber.App {
return app
}
func RunServer(app *fiber.App) {
for _, port := range viper.GetStringSlice("hypertext.ports") {
func RunServer(app *fiber.App, ports []string, securedPorts []string, pem string, key string) {
for _, port := range ports {
port := port
go func() {
if err := app.Listen(port); err != nil {
@ -43,10 +43,8 @@ func RunServer(app *fiber.App) {
}()
}
for _, port := range viper.GetStringSlice("hypertext.secured_ports") {
for _, port := range securedPorts {
port := port
pem := viper.GetString("hypertext.certificate.pem")
key := viper.GetString("hypertext.certificate.key")
go func() {
if err := app.ListenTLS(port, pem, key); err != nil {
log.Panic().Err(err).Msg("An error occurred when listening hypertext tls ports.")

View File

@ -2,33 +2,23 @@ package hypertext
import (
"code.smartsheep.studio/goatworks/roadsign/pkg/configurator"
"fmt"
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/middleware/proxy"
"github.com/rs/zerolog/log"
"github.com/samber/lo"
"github.com/spf13/viper"
"github.com/valyala/fasthttp"
"math/rand"
"regexp"
"strings"
"time"
)
func UseProxies(app *fiber.App) {
app.All("/", func(ctx *fiber.Ctx) error {
app.All("/*", func(ctx *fiber.Ctx) error {
host := ctx.Hostname()
path := ctx.Path()
queries := ctx.Queries()
headers := ctx.GetReqHeaders()
log.Debug().
Any("host", host).
Any("path", path).
Any("queries", queries).
Any("headers", headers).
Msg("A new request received")
// Filtering sites
for _, site := range configurator.C.Sites {
// Matching rules
@ -96,45 +86,30 @@ func UseProxies(app *fiber.App) {
})
}
func doLoadBalance(site configurator.SiteConfig) *configurator.UpstreamConfig {
idx := rand.Intn(len(site.Upstreams))
switch site.Upstreams[idx].GetType() {
case configurator.UpstreamTypeHypertext:
return &site.Upstreams[idx]
case configurator.UpstreamTypeFile:
// TODO Make this into hypertext configuration
return &site.Upstreams[idx]
default:
// Give him the null value when this configuration is invalid.
// Then we can print a log in the console to warm him.
return nil
}
}
func makeRequestUri(ctx *fiber.Ctx, upstream configurator.UpstreamConfig) string {
var queries []string
for k, v := range ctx.Queries() {
queries = append(queries, fmt.Sprintf("%s=%s", k, v))
}
hash := string(ctx.Request().URI().Hash())
return upstream.URI +
lo.Ternary(len(queries) > 0, "?"+strings.Join(queries, "&"), "") +
lo.Ternary(len(hash) > 0, "#"+hash, "")
}
func makeResponse(ctx *fiber.Ctx, site configurator.SiteConfig) error {
upstream := doLoadBalance(site)
// Load balance
upstream := configurator.C.LoadBalance(site)
if upstream == nil {
log.Warn().Str("id", site.ID).Msg("There is no available upstream for this request.")
return fiber.ErrBadGateway
}
// Modify request
for _, transformer := range site.Transformers {
transformer.TransformRequest(ctx)
}
// Perform forward
timeout := time.Duration(viper.GetInt64("performance.network_timeout")) * time.Millisecond
return proxy.Do(ctx, makeRequestUri(ctx, *upstream), &fasthttp.Client{
err := proxy.Do(ctx, upstream.MakeURI(ctx), &fasthttp.Client{
ReadTimeout: timeout,
WriteTimeout: timeout,
})
// Modify response
for _, transformer := range site.Transformers {
transformer.TransformResponse(ctx)
}
return err
}