test multi

cmd/main.go

@@ -10,11 +10,11 @@ import (
 	"gitea.tbdevent.eu/ilbinek/reforger_utils"
 )
 
-const DEBUG = true
+const DEBUG = false
 
 func main() {
-	addonID := "BADC0DEDABBEDA5E"
-	version := "0.12.4573"
+	addonID := "61EB463A41FE5274"
+	version := "0.1.166"
 
 	assetsReply, err := reforger_utils.DoAssetsRequest(addonID, version)
 	if err != nil {
@@ -64,10 +64,6 @@ func main() {
 			if err != nil {
 				panic(err)
 			}
-
-			if err := os.WriteFile(filepath.Join(downloadDir, file.Name), downedFile, os.ModePerm); err != nil {
-				panic(err)
-			}
 			
 			fmt.Println("Downloaded", file.Name, len(downedFile), "bytes")
 

go.mod

@@ -1,5 +1,3 @@
 module gitea.tbdevent.eu/ilbinek/reforger_utils
 
 go 1.25.0
-
-require golang.org/x/net v0.44.0 // indirect

go.sum

@@ -1,2 +0,0 @@
-golang.org/x/net v0.44.0 h1:evd8IRDyfNBMBTTY5XRF1vaZlD+EmWx6x8PkhR04H/I=
-golang.org/x/net v0.44.0/go.mod h1:ECOoLqd5U3Lhyeyo/QDCEVQ4sNgYsqvCZ722XogGieY=

util.go

@@ -9,25 +9,11 @@ import (
 	"path/filepath"
 	"slices"
 	"strings"
-
-	"golang.org/x/net/proxy"
+	"sync"
 )
 
 var Debug = false
-var Tor = false
-var Socks5Address = "127.0.0.1:9050"
-
-func getHttpClient() (*http.Client, error) {
-	if Tor {
-		dialer, err := proxy.SOCKS5("tcp", Socks5Address, nil, proxy.Direct)
-		if err != nil {
-			return nil, err
-		}
-		transport := &http.Transport{Dial: dialer.Dial}
-		return &http.Client{Transport: transport}, nil
-	}
-	return http.DefaultClient, nil
-}
+var DownThreads = 8
 
 func DoAssetsRequest(addonID, version string) (AssetsReply, error) {
 	url := "https://api-ar-workshop.bistudio.com/workshop-api/api/v3.0/s2s/assets/download-list"
@@ -43,11 +29,7 @@ func DoAssetsRequest(addonID, version string) (AssetsReply, error) {
 	req.Header.Add("user-agent", "Arma Reforger/1.4.0.53 (Headless; Windows)")
 	req.Header.Add("content-length", fmt.Sprintf("%d", len(body)))
 
-	client, err := getHttpClient()
-	if err != nil {
-		return AssetsReply{}, err
-	}
-	res, err := client.Do(req)
+	res, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return AssetsReply{}, err
 	}
@@ -77,11 +59,7 @@ func GetManifest(manifestUrl string) (Manifest, error) {
 		return Manifest{}, err
 	}
 
-	client, err := getHttpClient()
-	if err != nil {
-		return Manifest{}, err
-	}
-	res, err := client.Do(req)
+	res, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return Manifest{}, err
 	}
@@ -119,8 +97,8 @@ func Download(manifest Manifest, downloadDir string, filen string) ([]byte, erro
 		if err != nil {
 			return nil, err
 		}
-		remContent = *content
-		downloaded += len(*content)
+		remContent = content
+		downloaded += len(content)
 
 		if Debug {
 			// save remainder to file in the fragments/ directory, prefix with gap
@@ -136,23 +114,74 @@ func Download(manifest Manifest, downloadDir string, filen string) ([]byte, erro
 	ret := make([]byte, manifest.Size)
 	totalMB := float32(manifest.Size) / 1024.0 / 1024.0
 
-	// Download all fragments serially to keep execution simple and deterministic.
-	for _, fragment := range manifest.Fragments {
-		url := transformShaToURL(fragment.Sha512, fragment.Size)
-		content, err := getContent(url)
-		if err != nil {
-			return nil, err
-		}
-		downloaded += len(*content) * len(fragment.Offsets)
-		for _, offset := range fragment.Offsets {
-			trackFrag = append(trackFrag, Frag{Offset: offset, Size: len(*content)})
-			copy(ret[offset:offset+len(*content)], *content)
-		}
-		percent := float32(downloaded) / float32(manifest.Size) * 100.0
-		downedMB := float32(downloaded) / 1024.0 / 1024.0
-		fmt.Printf("\r\033[32mDownloaded\033[0m %fMB/%fMB (\033[36m%.2f%%\033[0m) of \033[33m%s\033[0m", downedMB, totalMB, percent, filen)
+	var wg sync.WaitGroup
+	var mu sync.Mutex
+
+	fragmentsChan := make(chan Fragment, len(manifest.Fragments))
+	errChan := make(chan error, DownThreads)
+
+	// Start worker goroutines
+	for i := 0; i < DownThreads; i++ {
+		wg.Go(func() {
+			for fragment := range fragmentsChan {
+				url := transformShaToURL(fragment.Sha512, fragment.Size)
+				content, err := getContent(url)
+				if err != nil {
+					// Handle error, maybe by sending it to an error channel
+					// For now, we'll just skip and print.
+					fmt.Printf("Error downloading fragment %s: %v\n", fragment.Sha512, err)
+					errChan <- err
+				}
+
+				mu.Lock()
+				// Safely write to the shared slice and update progress
+				for _, offset := range fragment.Offsets {
+					copy(ret[offset:offset+len(content)], content)
+				}
+				downloaded += len(content) * len(fragment.Offsets)
+
+				// Track downloaded fragments
+				for _, offset := range fragment.Offsets {
+					trackFrag = append(trackFrag, Frag{
+						Offset: offset,
+						Size:   len(content),
+					})
+				}
+
+				// Print progress
+				downedMB := float32(downloaded) / 1024.0 / 1024.0
+				percent := float32(downloaded) / float32(manifest.Size) * 100.0
+				fmt.Printf("\r\033[32mDownloaded\033[0m %.2fMB/%.2fMB (\033[36m%.2f%%\033[0m) of \033[33m%s\033[0m", downedMB, totalMB, percent, filen)
+
+				mu.Unlock()
+
+				// The Debug section can be safely moved here as well
+				if os.Getenv("DEBUG") == "true" { // Using env var for a cleaner check
+					mu.Lock() // Re-lock for file write
+					if err := os.WriteFile(filepath.Join(downloadDir, "fragments", filen, fmt.Sprintf("%d.%s.%d.bytes", fragment.Offsets[0], fragment.Sha512, fragment.Size)), content, os.ModePerm); err != nil {
+						fmt.Printf("Error saving file: %v\n", err)
+					}
+					mu.Unlock()
+				}
+			}
+		})
 	}
 
+	// Send fragments to the channel
+	for _, fragment := range manifest.Fragments {
+		fragmentsChan <- fragment
+	}
+	close(fragmentsChan) // Close the channel to signal workers no more tasks are coming
+
+	// Wait for all workers to finish
+	wg.Wait()
+
+	// Check for errors
+	if len(errChan) > 0 {
+		return nil, <-errChan // Return the first error encountered
+	}
+	close(errChan)
+
 	// sort trackFrag by Offset
 	slices.SortFunc(trackFrag, func(a, b Frag) int {
 		return a.Offset - b.Offset
@@ -181,12 +210,8 @@ func Download(manifest Manifest, downloadDir string, filen string) ([]byte, erro
 	return ret, nil
 }
 
-func getContent(url string) (*[]byte, error) {
-	client, err := getHttpClient()
-	if err != nil {
-		return nil, err
-	}
-	resp, err := client.Get(url)
+func getContent(url string) ([]byte, error) {
+	resp, err := http.Get(url)
 	if err != nil {
 		return nil, err
 	}
@@ -201,7 +226,7 @@ func getContent(url string) (*[]byte, error) {
 		return nil, err
 	}
 
-	return &body, nil
+	return body, nil
 }
 
 func transformShaToURL(sha512s string, size int) string {