fetch instance details asynchronously

This commit is contained in:
Bnyro 2023-07-21 18:03:29 +02:00
parent c871ee0237
commit 2e081e3641

235
main.go
View file

@ -3,7 +3,8 @@ package main
import (
"context"
"encoding/json"
"github.com/gofiber/fiber/v2"
"errors"
"fmt"
"io"
"log"
"net/http"
@ -11,8 +12,11 @@ import (
"regexp"
"strconv"
"strings"
"sync"
"time"
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/middleware/cors"
"github.com/gofiber/fiber/v2/middleware/etag"
"github.com/google/go-github/v53/github"
@ -40,6 +44,110 @@ type FrontendConfig struct {
S3Enabled bool `json:"s3Enabled"`
}
func getInstanceDetails(line string, latest string) (Instance, error) {
split := strings.Split(line, "|")
if len(split) >= 5 {
ApiUrl := strings.TrimSpace(split[1])
resp, err := http.Get(ApiUrl + "/healthcheck")
if err != nil {
return Instance{}, err
}
LastChecked := time.Now().Unix()
if resp.StatusCode != 200 {
return Instance{}, errors.New("Invalid response code")
}
resp, err = http.Get(ApiUrl + "/registered/badge")
if err != nil {
return Instance{}, err
}
registered, err := strconv.ParseInt(number_re.FindString(resp.Request.URL.Path), 10, 32)
if err != nil {
return Instance{}, err
}
resp, err = http.Get(ApiUrl + "/version")
if err != nil {
return Instance{}, err
}
if resp.StatusCode != 200 {
return Instance{}, errors.New("Invalid response code")
}
buf := new(strings.Builder)
_, err = io.Copy(buf, resp.Body)
if err != nil {
return Instance{}, err
}
version := strings.TrimSpace(buf.String())
version_split := strings.Split(version, "-")
hash := version_split[len(version_split)-1]
resp, err = http.Get(ApiUrl + "/config")
if err != nil {
return Instance{}, err
}
if resp.StatusCode != 200 {
return Instance{}, errors.New("Invalid response code")
}
bytes, err := io.ReadAll(resp.Body)
if err != nil {
return Instance{}, err
}
var config FrontendConfig
err = json.Unmarshal(bytes, &config)
if err != nil {
return Instance{}, err
}
cache_working := false
resp, err = http.Get(ApiUrl + "/trending?region=US")
if err != nil {
return Instance{}, err
}
if resp.StatusCode == 200 {
old_timing := resp.Header.Get("Server-Timing")
resp, err = http.Get(ApiUrl + "/trending?region=US")
if err != nil {
return Instance{}, err
}
if resp.StatusCode == 200 {
new_timing := resp.Header.Get("Server-Timing")
if old_timing == new_timing {
cache_working = true
}
}
}
// check if instance can fetch videos
resp, err = http.Get(ApiUrl + "/streams/jNQXAC9IVRw")
if err != nil {
return Instance{}, err
}
if resp.StatusCode != 200 {
return Instance{}, errors.New("Invalid status code")
}
return Instance{
Name: strings.TrimSpace(split[0]),
ApiUrl: ApiUrl,
Locations: strings.TrimSpace(split[2]),
Cdn: strings.TrimSpace(split[3]) == "Yes",
Registered: int(registered),
LastChecked: LastChecked,
Version: version,
UpToDate: strings.Contains(latest, hash),
Cache: cache_working,
S3Enabled: config.S3Enabled,
}, nil
}
return Instance{}, errors.New("Invalid line")
}
func monitorInstances() {
ctx := context.Background()
var tc *http.Client
@ -90,124 +198,25 @@ func monitorInstances() {
instances := []Instance{}
skipped := 0
for _, line := range lines {
split := strings.Split(line, "|")
if len(split) >= 5 {
if skipped < 2 {
skipped++
continue
}
ApiUrl := strings.TrimSpace(split[1])
resp, err := http.Get(ApiUrl + "/healthcheck")
if err != nil {
log.Print(err)
continue
}
LastChecked := time.Now().Unix()
if resp.StatusCode != 200 {
continue
}
resp, err = http.Get(ApiUrl + "/registered/badge")
if err != nil {
log.Print(err)
continue
}
registered, err := strconv.ParseInt(number_re.FindString(resp.Request.URL.Path), 10, 32)
if err != nil {
log.Print(err)
continue
}
resp, err = http.Get(ApiUrl + "/version")
if err != nil {
log.Print(err)
continue
}
if resp.StatusCode != 200 {
continue
}
buf := new(strings.Builder)
_, err = io.Copy(buf, resp.Body)
if err != nil {
log.Print(err)
continue
}
version := strings.TrimSpace(buf.String())
version_split := strings.Split(version, "-")
hash := version_split[len(version_split)-1]
resp, err = http.Get(ApiUrl + "/config")
if err != nil {
log.Print(err)
continue
}
if resp.StatusCode != 200 {
wg := sync.WaitGroup{}
for index, line := range lines {
if index < 3 {
fmt.Println(line)
continue
}
bytes, err := io.ReadAll(resp.Body)
if err != nil {
wg.Add(1)
go func(line string) {
instance, err := getInstanceDetails(line, latest)
if err == nil {
instances = append(instances, instance)
} else {
log.Print(err)
continue
}
var config FrontendConfig
err = json.Unmarshal(bytes, &config)
if err != nil {
log.Print(err)
continue
}
cache_working := false
resp, err = http.Get(ApiUrl + "/trending?region=US")
if err != nil {
log.Print(err)
continue
}
if resp.StatusCode == 200 {
old_timing := resp.Header.Get("Server-Timing")
resp, err = http.Get(ApiUrl + "/trending?region=US")
if err != nil {
log.Print(err)
continue
}
if resp.StatusCode == 200 {
new_timing := resp.Header.Get("Server-Timing")
if old_timing == new_timing {
cache_working = true
}
}
}
// check if instance can fetch videos
resp, err = http.Get(ApiUrl + "/streams/jNQXAC9IVRw")
if err != nil {
log.Print(err)
continue
}
if resp.StatusCode != 200 {
continue
}
instances = append(instances, Instance{
Name: strings.TrimSpace(split[0]),
ApiUrl: ApiUrl,
Locations: strings.TrimSpace(split[2]),
Cdn: strings.TrimSpace(split[3]) == "Yes",
Registered: int(registered),
LastChecked: LastChecked,
Version: version,
UpToDate: strings.Contains(latest, hash),
Cache: cache_working,
S3Enabled: config.S3Enabled,
})
}
wg.Done()
}(line)
}
wg.Wait()
// update the global instances variable
monitored_instances = instances