feat: initial goget release — modern IPv6-first download utility

This commit is contained in:
2026-06-26 21:21:58 +02:00
commit 53db81e1f7
147 changed files with 45931 additions and 0 deletions
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//go:build linux || freebsd
// +build linux freebsd
package http
import (
"time"
"codeberg.org/petrbalvin/goget/internal/auth"
"codeberg.org/petrbalvin/goget/internal/hsts"
"codeberg.org/petrbalvin/goget/internal/transport"
)
// TransportConfig groups network, TLS, proxy, and connection settings.
type TransportConfig struct {
// Connection
Timeout time.Duration
ConnectTimeout time.Duration
MaxTime time.Duration
MaxFileSize int64
BufferSize int
FollowRedirects bool
MaxRedirects int
NoClobber bool
// TLS and certificates
TLS *transport.TLSConfig
CACertFile string
HSTSCache *hsts.Cache
// Proxy and dialer
Proxy *transport.ProxyConfig
Dialer *transport.DialerConfig
BindInterface string
// DNS and IP filtering
DNSServers []string
BlockPrivateIPs bool
// Retry
Retry *transport.RetryConfig
MaxRetries int
RetryDelay time.Duration
RetryHTTPCodes []int
RetryAllErrors bool
}
// AuthConfig groups authentication settings.
type AuthConfig struct {
Username string
Password string
AuthType string // "basic", "digest", "auto"
OAuth *auth.OAuthConfig
}
// RecursiveConfig groups recursive download and mirroring settings.
type RecursiveConfig struct {
// Core recursion
Enabled bool
MaxDepth int
FollowExternal bool
ExcludePatterns []string
Accept string
Reject []string
// Parallel worker count for recursive downloads. 0 falls back to
// Parallel.Connections (or the default). Applies to all recursive
// protocols that support parallel file processing.
Parallel int
// Scope control
NoParent bool
SpanHosts bool
PageRequisites bool
Domains []string
// Rate limiting for recursion
Wait time.Duration
RandomWait bool
// Output control
CutDirs int
AdjustExt bool
DryRun bool
// Mirror mode
Mirror bool
MirrorAssets bool
ConvertLinks bool
RespectRobots bool
}
// OutputConfig groups output, progress, and display settings.
type OutputConfig struct {
OutputDir string
Verbose bool
JSONOutput bool
ShowHeaders bool
ContentDisposition bool
KeepTimestamps bool
WriteOut string
TraceTime bool
OnComplete string
WarcFile string
AutoExtract bool
ExtractDir string
}
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//go:build linux || freebsd
// +build linux freebsd
package http
import (
"fmt"
"mime"
"net/http"
"net/url"
"path/filepath"
"strings"
)
// URLInfo contains extracted information from an HTTP URL
type URLInfo struct {
Scheme string
Host string
Port string
Path string
Query string
Fragment string
User *url.Userinfo
}
// Handler contains HTTP-specific logic
type Handler struct {
client *Client
}
// NewHandler creates new handler
func NewHandler(client *Client) *Handler {
return &Handler{client: client}
}
// ParseHTTPURL parses an HTTP URL and extracts information
func ParseHTTPURL(u *url.URL) (*URLInfo, error) {
if u.Scheme != "http" && u.Scheme != "https" {
return nil, fmt.Errorf("invalid http url scheme: %s", u.Scheme)
}
host := u.Hostname()
port := u.Port()
if port == "" {
if u.Scheme == "https" {
port = "443"
} else {
port = "80"
}
}
return &URLInfo{
Scheme: u.Scheme,
Host: host,
Port: port,
Path: u.Path,
Query: u.RawQuery,
Fragment: u.Fragment,
User: u.User,
}, nil
}
// GetContentType extracts Content-Type from the response
func GetContentType(resp *http.Response) string {
return resp.Header.Get("Content-Type")
}
// GetContentLength extracts Content-Length from the response
func GetContentLength(resp *http.Response) int64 {
return resp.ContentLength
}
// GetContentEncoding extracts Content-Encoding from the response
func GetContentEncoding(resp *http.Response) string {
return resp.Header.Get("Content-Encoding")
}
// GetETag extracts ETag from the response
func GetETag(resp *http.Response) string {
return resp.Header.Get("ETag")
}
// GetLastModified extracts Last-Modified from the response
func GetLastModified(resp *http.Response) string {
return resp.Header.Get("Last-Modified")
}
// SupportsRangeCheck checks whether the server supports range requests
func SupportsRangeCheck(resp *http.Response) bool {
acceptRanges := resp.Header.Get("Accept-Ranges")
return strings.ToLower(acceptRanges) == "bytes"
}
// IsRedirect checks whether the response is a redirect
func IsRedirect(statusCode int) bool {
return statusCode >= 300 && statusCode < 400
}
// GetRedirectLocation gets the Location header from a redirect response
func GetRedirectLocation(resp *http.Response) string {
return resp.Header.Get("Location")
}
// BuildURLWithQuery creates a URL with query parameters
func BuildURLWithQuery(base *url.URL, params map[string]string) (*url.URL, error) {
if base == nil {
return nil, fmt.Errorf("base url cannot be nil")
}
result := *base
query := result.Query()
for key, value := range params {
query.Set(key, value)
}
result.RawQuery = query.Encode()
return &result, nil
}
// GetUserinfo extracts authentication credentials from the URL
func GetUserinfo(u *url.URL) (username, password string, ok bool) {
if u.User == nil {
return "", "", false
}
username = u.User.Username()
password, ok = u.User.Password()
return username, password, true
}
// IsSecure checks whether the URL uses HTTPS
func IsSecure(u *url.URL) bool {
return u.Scheme == "https"
}
// GetDefaultPortForScheme returns the default port for the scheme
func GetDefaultPortForScheme(scheme string) string {
switch scheme {
case "https":
return "443"
case "http":
return "80"
default:
return ""
}
}
// ParseContentDisposition extracts filename from Content-Disposition header
func ParseContentDisposition(headerValue string) string {
if headerValue == "" {
return ""
}
_, params, err := mime.ParseMediaType(headerValue)
if err != nil {
return ""
}
// Try filename* first (RFC 5987, extended filename)
if filename, ok := params["filename*"]; ok {
return filename
}
// Fall back to filename
if filename, ok := params["filename"]; ok {
return filename
}
return ""
}
// SanitizeFilename removes path components from a filename for security
func SanitizeFilename(name string) string {
name = filepath.Base(name)
if name == "" || name == "." || name == ".." {
return ""
}
return name
}
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//go:build linux || freebsd
// +build linux freebsd
package http
import (
"context"
"fmt"
"io"
"net/http"
"net/http/httptest"
"net/url"
"os"
"path/filepath"
"strings"
"sync/atomic"
"testing"
"time"
"codeberg.org/petrbalvin/goget/internal/core"
"codeberg.org/petrbalvin/goget/internal/transport"
)
// testWriter implements io.Writer for testing
type testWriter struct {
buf strings.Builder
}
func (w *testWriter) Write(p []byte) (int, error) {
return w.buf.Write(p)
}
func TestDownloadSequentialIntegration(t *testing.T) {
// Create a test server that returns known content
testContent := "Hello, this is test content for download integration testing!"
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
w.WriteHeader(http.StatusOK)
w.Write([]byte(testContent))
}))
defer server.Close()
// Parse the server URL
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("Failed to parse server URL: %v", err)
}
// Create the HTTP client
client, err := NewClient(DefaultConfig())
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
// Create download request
req := &core.DownloadRequest{
URL: parsedURL,
Output: "",
Writer: &testWriter{},
Verbose: false,
Headers: make(map[string]string),
}
// Execute download
result, err := client.Download(context.Background(), req)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.BytesDownloaded <= 0 {
t.Errorf("Expected bytes downloaded > 0, got %d", result.BytesDownloaded)
}
if result.BytesDownloaded != int64(len(testContent)) {
t.Errorf("Expected %d bytes downloaded, got %d", len(testContent), result.BytesDownloaded)
}
}
func TestDownloadParallelIntegration(t *testing.T) {
// Create test content for parallel download
testContent := strings.Repeat("B", 1024*1024) // 1MB
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Support range requests
w.Header().Set("Accept-Ranges", "bytes")
w.Header().Set("Content-Type", "application/octet-stream")
rangeHeader := r.Header.Get("Range")
if rangeHeader != "" {
var start, end int64
n, _ := fmt.Sscanf(rangeHeader, "bytes=%d-%d", &start, &end)
if n >= 1 {
if end == 0 || end >= int64(len(testContent)) {
end = int64(len(testContent)) - 1
}
w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, end, len(testContent)))
w.WriteHeader(http.StatusPartialContent)
w.Write([]byte(testContent[start : end+1]))
return
}
}
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
w.WriteHeader(http.StatusOK)
w.Write([]byte(testContent))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("Failed to parse server URL: %v", err)
}
cfg := DefaultConfig()
cfg.Parallel = &core.ParallelConfig{
Connections: 4,
MinSize: 100, // Force parallel for small files
MinChunkSize: 100,
MaxChunkSize: 1024 * 1024,
}
client, err := NewClient(cfg)
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
req := &core.DownloadRequest{
URL: parsedURL,
Output: "",
Writer: &testWriter{},
Verbose: false,
Headers: make(map[string]string),
Parallel: cfg.Parallel,
}
result, err := client.Download(context.Background(), req)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.BytesDownloaded <= 0 {
t.Errorf("Expected bytes downloaded > 0, got %d", result.BytesDownloaded)
}
if !result.Parallel {
t.Log("Download was not parallel (may be expected depending on server negotiation)")
}
}
func TestDownloadResumeIntegration(t *testing.T) {
testContent := "This is content for resume testing!"
var requestCount int
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
requestCount++
w.Header().Set("Accept-Ranges", "bytes")
w.Header().Set("ETag", "\"test-etag-123\"")
rangeHeader := r.Header.Get("Range")
if rangeHeader != "" {
var start int64
fmt.Sscanf(rangeHeader, "bytes=%d-", &start)
w.Header().Set("Content-Range", fmt.Sprintf("bytes %d-%d/%d", start, len(testContent)-1, len(testContent)))
w.WriteHeader(http.StatusPartialContent)
w.Write([]byte(testContent[start:]))
return
}
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(testContent)))
w.WriteHeader(http.StatusOK)
w.Write([]byte(testContent))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("Failed to parse server URL: %v", err)
}
client, err := NewClient(DefaultConfig())
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
// Create resume info simulating a partially downloaded file
resumeInfo := &core.ResumeInfo{
DownloadedBytes: 10,
ETag: "\"test-etag-123\"",
URL: server.URL,
}
req := &core.DownloadRequest{
URL: parsedURL,
Output: "",
Writer: &testWriter{},
Resume: true,
ResumeInfo: resumeInfo,
Verbose: false,
Headers: make(map[string]string),
}
result, err := client.Download(context.Background(), req)
if err != nil {
t.Fatalf("Download failed: %v", err)
}
if result.BytesDownloaded <= 0 {
t.Errorf("Expected bytes downloaded > 0, got %d", result.BytesDownloaded)
}
if result.Resumed {
t.Log("Download was resumed successfully")
}
}
func TestUploadIntegration(t *testing.T) {
var receivedBody string
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
body, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, "Failed to read body", http.StatusInternalServerError)
return
}
receivedBody = string(body)
w.WriteHeader(http.StatusOK)
w.Write([]byte("OK"))
}))
defer server.Close()
client, err := NewClient(DefaultConfig())
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
// Test POST upload with form data
formReq := &UploadRequest{
URL: server.URL,
Method: "POST",
FormData: map[string]string{"key": "value"},
Timeout: 0,
}
result, err := client.Upload(context.Background(), formReq)
if err != nil {
t.Fatalf("Upload failed: %v", err)
}
if result.StatusCode != http.StatusOK {
t.Errorf("Expected status 200, got %d", result.StatusCode)
}
if result.BytesUploaded <= 0 {
t.Errorf("Expected bytes uploaded > 0, got %d", result.BytesUploaded)
}
if !strings.Contains(receivedBody, "key=value") {
t.Errorf("Expected body to contain form data, got: %s", receivedBody)
}
}
func TestDownloadFollowsRedirectIntegration(t *testing.T) {
const finalBody = "redirected content"
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if r.URL.Path == "/redirect" {
http.Redirect(w, r, "/target", http.StatusFound)
return
}
w.WriteHeader(http.StatusOK)
w.Write([]byte(finalBody))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL + "/redirect")
if err != nil {
t.Fatalf("parse url: %v", err)
}
client, err := NewClient(DefaultConfig())
if err != nil {
t.Fatalf("create client: %v", err)
}
result, err := client.Download(context.Background(), &core.DownloadRequest{
URL: parsedURL,
Writer: &testWriter{},
Headers: map[string]string{},
})
if err != nil {
t.Fatalf("download: %v", err)
}
if result.BytesDownloaded != int64(len(finalBody)) {
t.Errorf("bytes = %d, want %d", result.BytesDownloaded, len(finalBody))
}
}
// TestRetryAllErrorsClosesBody exercises the RetryAllErrors loop with a
// server that always answers 500. It verifies the loop actually attempts the
// configured number of retries and that each attempt's response body is
// closed — guarding against the regression where http.Client.Do returned a
// non-nil resp alongside an error and the body was never closed, exhausting
// the connection pool.
func TestRetryAllErrorsClosesBody(t *testing.T) {
var requestCount int32
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
atomic.AddInt32(&requestCount, 1)
w.WriteHeader(http.StatusInternalServerError)
// Write a non-empty body so a leaking response body would matter
// (an empty body is closed trivially by net/http's chunked reader).
_, _ = w.Write([]byte("server error"))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("parse url: %v", err)
}
cfg := DefaultConfig()
cfg.Transport.RetryAllErrors = true
cfg.Transport.MaxRetries = 3
cfg.Transport.Retry = &transport.RetryConfig{
MaxRetries: 3,
InitialDelay: time.Millisecond,
}
client, err := NewClient(cfg)
if err != nil {
t.Fatalf("create client: %v", err)
}
_, err = client.Download(context.Background(), &core.DownloadRequest{
URL: parsedURL,
Writer: &testWriter{},
Headers: map[string]string{},
})
if err == nil {
t.Fatal("expected error after exhausting retries on 500 responses")
}
// We expect at least 1 (initial transport.Retry attempt) + MaxRetries
// (RetryAllErrors loop). The exact number may be higher because Go's
// HTTP transport may also retry once on its own when an attempt fails
// (e.g. HTTP/2 negotiation with an HTTP/1.1 test server), so we assert
// the lower bound only — the goal is to confirm the retry loop runs and
// that every failed response body is closed, not to pin a Go-internal
// detail.
minRequests := int32(1 + cfg.Transport.MaxRetries)
if got := atomic.LoadInt32(&requestCount); got < minRequests {
t.Errorf("request count = %d, want >= %d (1 initial + %d retries)", got, minRequests, cfg.Transport.MaxRetries)
}
}
// TestUploadRateLimiterAndProgressAreChained is a regression guard for the
// BACKLOG entry "Rate limiter silently dropped when progress wrapper
// enabled". The two wrappers must compose — httpReq.Body must end up
// reading through the rate-limited reader, with progress reported on top.
func TestUploadRateLimiterAndProgressAreChained(t *testing.T) {
const payload = "the quick brown fox jumps over the lazy dog"
var receivedBody string
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
body, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, "read error", http.StatusInternalServerError)
return
}
receivedBody = string(body)
w.WriteHeader(http.StatusOK)
}))
defer server.Close()
// Write payload to a temp file (Upload's PUT path opens the file).
tmpDir := t.TempDir()
tmpFile := filepath.Join(tmpDir, "payload.txt")
if err := os.WriteFile(tmpFile, []byte(payload), 0600); err != nil {
t.Fatalf("write tmp: %v", err)
}
cfg := DefaultConfig()
// Generous rate limit so the test isn't dominated by the limiter.
// limitedReader.Read asks for len(p) tokens on every call, and the
// HTTP transport uses a 32 KB buffer, so burst must comfortably exceed
// that or Allow() blocks forever.
cfg.RateLimiter = transport.NewTokenBucket(8*1024*1024, 8*1024*1024)
cfg.Transport.MaxRetries = 0
cfg.Transport.Retry = &transport.RetryConfig{
MaxRetries: 0,
InitialDelay: time.Millisecond,
}
client, err := NewClient(cfg)
if err != nil {
t.Fatalf("create client: %v", err)
}
progressCalls := 0
var lastCurrent int64
progressCb := func(current, total int64, _ float64) {
progressCalls++
if current < lastCurrent {
t.Errorf("progress went backwards: %d -> %d", lastCurrent, current)
}
lastCurrent = current
}
_, err = client.Upload(context.Background(), &UploadRequest{
URL: server.URL,
Method: "PUT",
FilePath: tmpFile,
ProgressCallback: progressCb,
})
if err != nil {
t.Fatalf("upload: %v", err)
}
// The server must receive the full, unmodified payload. If the rate
// limiter wrapper was silently dropped (e.g. httpReq.Body not updated
// after body was reassigned), the server would still get the data via
// the original reader — so this check alone doesn't expose the bug.
if receivedBody != payload {
t.Errorf("server body mismatch: got %q, want %q", receivedBody, payload)
}
// Progress callback must fire at least once and reach the full payload
// length. The exact call count depends on the read-buffer behaviour of
// net/http (a 43-byte payload may be read in a single Read), but a count
// of zero would prove the progress reader was bypassed — which is the
// exact regression the BACKLOG entry warns about.
if progressCalls < 1 {
t.Errorf("progress callback called %d times, want >= 1 (progress reader must be in the chain)", progressCalls)
}
if lastCurrent != int64(len(payload)) {
t.Errorf("final progress current = %d, want %d", lastCurrent, len(payload))
}
}
// TestRetryAllErrorsRecoversOn200 verifies that a 200 response after a few
// 500s short-circuits the retry loop and produces a successful download —
// another code path that must close every preceding failed response body
// before jumping to okStatus.
func TestRetryAllErrorsRecoversOn200(t *testing.T) {
const finalBody = "ok after retries"
var requestCount int32
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
n := atomic.AddInt32(&requestCount, 1)
if n < 3 {
w.WriteHeader(http.StatusInternalServerError)
_, _ = w.Write([]byte("server error"))
return
}
w.Header().Set("Content-Length", fmt.Sprintf("%d", len(finalBody)))
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte(finalBody))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("parse url: %v", err)
}
cfg := DefaultConfig()
cfg.Transport.RetryAllErrors = true
cfg.Transport.MaxRetries = 5
cfg.Transport.Retry = &transport.RetryConfig{
MaxRetries: 5,
InitialDelay: time.Millisecond,
}
client, err := NewClient(cfg)
if err != nil {
t.Fatalf("create client: %v", err)
}
result, err := client.Download(context.Background(), &core.DownloadRequest{
URL: parsedURL,
Writer: &testWriter{},
Headers: map[string]string{},
})
if err != nil {
t.Fatalf("download: %v", err)
}
if result.BytesDownloaded != int64(len(finalBody)) {
t.Errorf("bytes = %d, want %d", result.BytesDownloaded, len(finalBody))
}
if got := atomic.LoadInt32(&requestCount); got != 3 {
t.Errorf("request count = %d, want 3 (2 failures + 1 success)", got)
}
}
// TestTraceTimeTTFBOnReusedConnection is a regression guard for the
// BACKLOG entry "Trace timing dnsStart zero-value gives bogus TTFB on
// reused connections". The previous implementation measured TTFB as
// time.Since(dnsStart); on a pooled HTTP connection the DNSStart
// callback is silent, dnsStart stayed zero, and the result was ~55 years
// instead of a plausible request-time duration. The fix anchors TTFB to
// a requestStart timestamp captured before the trace is attached, so
// the value is meaningful whether or not the connection is reused.
func TestTraceTimeTTFBOnReusedConnection(t *testing.T) {
var connectionCount int32
server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
atomic.AddInt32(&connectionCount, 1)
w.Header().Set("Content-Type", "text/plain")
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("hello"))
}))
defer server.Close()
parsedURL, err := url.Parse(server.URL)
if err != nil {
t.Fatalf("Failed to parse server URL: %v", err)
}
cfg := DefaultConfig()
cfg.Output.TraceTime = true
client, err := NewClient(cfg)
if err != nil {
t.Fatalf("Failed to create client: %v", err)
}
reqTemplate := func() *core.DownloadRequest {
return &core.DownloadRequest{
URL: parsedURL,
Writer: &testWriter{},
Headers: make(map[string]string),
}
}
// First request opens the connection — DNSStart/ConnectStart/
// TLSHandshakeStart all fire, populating the trace timestamps.
if _, err := client.Download(context.Background(), reqTemplate()); err != nil {
t.Fatalf("first download failed: %v", err)
}
// Second request should be served from the pool. Whether or not
// keep-alive actually reuses the connection in this test depends
// on the transport's MaxIdleConnsPerHost, but the assertion is the
// same: TTFB must be a plausible duration in either case.
result, err := client.Download(context.Background(), reqTemplate())
if err != nil {
t.Fatalf("second download failed: %v", err)
}
if result.TraceTimings == nil {
t.Fatal("TraceTimings is nil despite TraceTime=true")
}
// 1 hour is a generous upper bound that flags the original ~55-year
// regression (time.Since(time.Time{}) on a fresh time.Time) without
// being flaky on a busy CI runner.
if ttfb := result.TraceTimings.TTFB; ttfb > time.Hour {
t.Errorf("TTFB = %v on second request; want a plausible duration (<1h); the zero-dnsStart regression typically produces ~55 years", ttfb)
}
if ttfb := result.TraceTimings.TTFB; ttfb < 0 {
t.Errorf("TTFB = %v; want non-negative", ttfb)
}
}
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//go:build linux || freebsd
// +build linux freebsd
package http
import (
"context"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"sync"
"time"
"codeberg.org/petrbalvin/goget/internal/auth"
"codeberg.org/petrbalvin/goget/internal/core"
"codeberg.org/petrbalvin/goget/internal/output"
)
func (c *Client) downloadParallel(ctx context.Context, req *core.DownloadRequest, totalSize int64, connections int, resumeChunks map[int]int64, username, password string) (*core.DownloadResult, error) {
startTime := time.Now()
chunks := createChunks(totalSize, connections, c.config.Parallel)
if c.config.Output.Verbose {
fmt.Fprintf(os.Stderr, "[parallel] Split into %d chunks\n", len(chunks))
}
tempDir, err := os.MkdirTemp("", "goget-chunks-*")
if err != nil {
return nil, core.NewFileError("failed to create temp dir", err)
}
defer os.RemoveAll(tempDir)
// completedChunks tracks per-chunk downloaded bytes for resume metadata.
completedChunks := make(map[int]int64)
var completedChunksMu sync.Mutex
for id, n := range resumeChunks {
completedChunks[id] = n
}
progressChan := make(chan int64, len(chunks)*2)
var wg sync.WaitGroup
var firstError error
var errorMu sync.Mutex
for i := range chunks {
chunk := &chunks[i]
wg.Add(1)
go func(chunk *core.ChunkInfo) {
defer wg.Done()
if resumeChunks != nil {
if done, ok := resumeChunks[chunk.ID]; ok && done >= (chunk.End-chunk.Start+1) {
progressChan <- done
chunk.Status = 2
return
}
}
chunkPath := filepath.Join(tempDir, fmt.Sprintf("chunk_%04d", chunk.ID))
err := c.downloadChunk(ctx, req, chunk, chunkPath, progressChan, username, password)
if err != nil {
errorMu.Lock()
if firstError == nil {
firstError = err
}
errorMu.Unlock()
chunk.Status = 3
chunk.Error = err
return
}
// Save per-chunk progress for resume on interruption.
completedChunksMu.Lock()
completedChunks[chunk.ID] = chunk.End - chunk.Start + 1
saveParallelResumeMetadata(req, totalSize, completedChunks)
completedChunksMu.Unlock()
chunk.Status = 2
}(chunk)
}
go func() {
wg.Wait()
close(progressChan)
}()
var totalDownloaded int64
var cancelled bool
aggregationLoop:
for {
select {
case progress, ok := <-progressChan:
if !ok {
break aggregationLoop
}
totalDownloaded += progress
if req.ProgressCallback != nil {
duration := time.Since(startTime)
speed := float64(totalDownloaded) / duration.Seconds()
req.ProgressCallback(totalDownloaded, totalSize, speed)
}
case <-ctx.Done():
cancelled = true
break aggregationLoop
}
}
if cancelled {
// Context was cancelled (SIGINT/SIGTERM). Return the error so
// the caller can show "cancelled" instead of "complete", and
// the progress bar renders the interrupted state. Partial
// chunks are NOT merged — they remain in temp files for a
// potential resume later.
return nil, ctx.Err()
}
if firstError != nil {
return nil, firstError
}
if req.Output != "" && req.Output != "-" {
if err := mergeChunks(req.Output, chunks, tempDir); err != nil {
return nil, core.NewFileError("failed to merge chunks", err)
}
}
if req.Output != "" {
output.DeleteResumeMetadata(req.Output)
}
duration := time.Since(startTime)
speed := float64(0)
if duration.Seconds() > 0 {
speed = float64(totalSize) / duration.Seconds()
}
return &core.DownloadResult{
BytesDownloaded: totalSize,
TotalSize: totalSize,
Duration: duration,
Speed: speed,
Protocol: "HTTP/HTTPS",
IPVersion: 6,
OutputPath: req.Output,
Parallel: true,
ChunksCount: len(chunks),
}, nil
}
// saveParallelResumeMetadata saves per-chunk progress to the resume metadata file.
func saveParallelResumeMetadata(req *core.DownloadRequest, totalSize int64, chunks map[int]int64) {
if req.Output == "" || req.Output == "-" {
return
}
// Build a snapshot of the current chunk progress.
snapshot := make(map[int]int64, len(chunks))
for id, n := range chunks {
snapshot[id] = n
}
meta := &output.ResumeMetadata{
URL: req.URL.String(),
Total: totalSize,
Downloaded: totalChunkBytes(snapshot),
LastWrite: time.Now(),
Version: "1.0",
Chunks: snapshot,
}
_ = meta.Save(req.Output)
}
// totalChunkBytes sums the byte count of all completed chunks.
func totalChunkBytes(chunks map[int]int64) int64 {
var total int64
for _, n := range chunks {
total += n
}
return total
}
func createChunks(totalSize int64, count int, cfg *core.ParallelConfig) []core.ChunkInfo {
if count <= 1 || totalSize <= cfg.MinSize {
return []core.ChunkInfo{
{ID: 0, Start: 0, End: totalSize - 1},
}
}
// Divide the file into `count` equal-sized chunks. The last chunk
// absorbs any remainder. MaxChunkSize is NOT used to further
// subdivide — the user explicitly asked for N parallel connections
// via --parallel, not N×M tiny range requests. Each chunk becomes
// one HTTP Range request handled by one of the N worker goroutines.
chunkSize := totalSize / int64(count)
if chunkSize < cfg.MinChunkSize {
chunkSize = cfg.MinChunkSize
count = int((totalSize + chunkSize - 1) / chunkSize)
}
chunks := make([]core.ChunkInfo, 0, count)
for i := 0; i < count; i++ {
start := int64(i) * chunkSize
end := start + chunkSize - 1
if i == count-1 || end >= totalSize {
end = totalSize - 1
}
chunks = append(chunks, core.ChunkInfo{
ID: i,
Start: start,
End: end,
})
}
return chunks
}
func (c *Client) downloadChunk(ctx context.Context, req *core.DownloadRequest, chunk *core.ChunkInfo, outputPath string, progressChan chan<- int64, username, password string) error {
chunk.Status = 1
httpReq, err := http.NewRequestWithContext(ctx, "GET", req.URL.String(), nil)
if err != nil {
return core.NewNetworkError("failed to create chunk request", err, req.URL.String())
}
httpReq.Header.Set("User-Agent", c.config.UserAgent)
httpReq.Header.Set("Range", fmt.Sprintf("bytes=%d-%d", chunk.Start, chunk.End))
if req.ResumeInfo != nil {
if req.ResumeInfo.ETag != "" {
httpReq.Header.Set("If-Range", req.ResumeInfo.ETag)
} else if req.ResumeInfo.LastModified != "" {
httpReq.Header.Set("If-Range", req.ResumeInfo.LastModified)
}
}
if username != "" {
auth.BasicAuth(httpReq, username, password)
}
for key, value := range req.Headers {
httpReq.Header.Set(key, value)
}
resp, err := c.httpClient.Do(httpReq)
if err != nil {
return core.NewNetworkError("failed to fetch chunk", err, req.URL.String())
}
defer resp.Body.Close()
c.updateHSTS(resp)
if resp.StatusCode != http.StatusPartialContent {
return core.NewProtocolError(
fmt.Sprintf("chunk HTTP error: %s", resp.Status),
nil,
req.URL.String(),
)
}
file, err := os.Create(outputPath)
if err != nil {
return core.NewFileError("failed to create chunk file", err)
}
defer file.Close()
reader := io.Reader(resp.Body)
if c.config.RateLimiter != nil {
reader = c.config.RateLimiter.WrapReader(reader)
}
buf := make([]byte, c.config.Transport.BufferSize)
var downloaded int64
for {
if ctx.Err() != nil {
return ctx.Err()
}
n, err := reader.Read(buf)
if n > 0 {
_, wErr := file.Write(buf[:n])
if wErr != nil {
return core.NewFileError("failed to write chunk", wErr)
}
downloaded += int64(n)
if progressChan != nil {
progressChan <- int64(n)
}
}
if err == io.EOF {
break
}
if err != nil {
return core.NewNetworkError("failed to read chunk", err, req.URL.String())
}
}
chunk.Downloaded = downloaded
return nil
}
func mergeChunks(outputPath string, chunks []core.ChunkInfo, tempDir string) error {
outFile, err := os.Create(outputPath)
if err != nil {
return err
}
defer outFile.Close()
for _, chunk := range chunks {
chunkPath := filepath.Join(tempDir, fmt.Sprintf("chunk_%04d", chunk.ID))
chunkFile, err := os.Open(chunkPath)
if err != nil {
return fmt.Errorf("failed to open chunk %d: %w", chunk.ID, err)
}
_, err = io.Copy(outFile, chunkFile)
chunkFile.Close()
if err != nil {
return fmt.Errorf("failed to copy chunk %d: %w", chunk.ID, err)
}
}
return nil
}
+379
View File
@@ -0,0 +1,379 @@
//go:build linux || freebsd
// +build linux freebsd
package http
import (
"bytes"
"context"
"fmt"
"io"
"mime/multipart"
"net/http"
"net/textproto"
"net/url"
"os"
"path/filepath"
"strings"
"time"
"codeberg.org/petrbalvin/goget/internal/auth"
format "codeberg.org/petrbalvin/goget/internal/format"
)
// UploadRequest represents an upload request
type UploadRequest struct {
// URL to upload to
URL string
// Method: PUT or POST
Method string
// Path to the file for upload
FilePath string
// Form data fields (for POST)
FormData map[string]string
// Files for upload (for POST multipart)
Files []UploadFile
// Custom headers
Headers map[string]string
// Timeout
Timeout time.Duration
// Callback pro progress
ProgressCallback func(current, total int64, speed float64)
}
// UploadFile represents a file for multipart upload
type UploadFile struct {
// Field name in the form data
FieldName string
// Path to the file
FilePath string
// Custom file name (optional)
FileName string
// Content-Type (optional)
ContentType string
}
// UploadResult is the result of an upload
type UploadResult struct {
StatusCode int
ContentLength int64
Duration time.Duration
BytesUploaded int64
Speed float64
ResponseBody string
}
// Upload uploads a file using PUT or POST
func (c *Client) Upload(ctx context.Context, req *UploadRequest) (*UploadResult, error) {
startTime := time.Now()
if req.Method == "" {
req.Method = "PUT"
}
// Create request body
var body io.Reader
var contentType string
var totalSize int64
if req.Method == "PUT" {
// PUT upload - direct file
if req.FilePath == "" {
return nil, fmt.Errorf("put upload requires --upload-file")
}
fileInfo, err := os.Stat(req.FilePath)
if err != nil {
return nil, fmt.Errorf("failed to stat file: %w", err)
}
totalSize = fileInfo.Size()
file, err := os.Open(req.FilePath)
if err != nil {
return nil, fmt.Errorf("failed to open file: %w", err)
}
defer file.Close()
body = file
contentType = "application/octet-stream"
} else if req.Method == "POST" {
// POST upload - form data or multipart
if len(req.Files) > 0 {
// Multipart form data
var bodyBuffer bytes.Buffer
writer := multipart.NewWriter(&bodyBuffer)
// Add regular form fields
for key, value := range req.FormData {
if err := writer.WriteField(key, value); err != nil {
return nil, fmt.Errorf("failed to write form field: %w", err)
}
}
// Add files
for _, uf := range req.Files {
file, err := os.Open(uf.FilePath)
if err != nil {
return nil, fmt.Errorf("failed to open file %s: %w", uf.FilePath, err)
}
fileName := uf.FileName
if fileName == "" {
fileName = filepath.Base(uf.FilePath)
}
contentType := uf.ContentType
if contentType == "" {
contentType = "application/octet-stream"
}
h := make(textproto.MIMEHeader)
h.Set("Content-Disposition",
fmt.Sprintf(`form-data; name="%s"; filename="%s"`, uf.FieldName, fileName))
h.Set("Content-Type", contentType)
part, err := writer.CreatePart(h)
if err != nil {
file.Close()
return nil, fmt.Errorf("failed to create form part: %w", err)
}
fileInfo, _ := os.Stat(uf.FilePath)
totalSize += fileInfo.Size()
_, err = io.Copy(part, file)
file.Close()
if err != nil {
return nil, fmt.Errorf("failed to write file to form: %w", err)
}
}
if err := writer.Close(); err != nil {
return nil, fmt.Errorf("failed to close multipart writer: %w", err)
}
body = &bodyBuffer
contentType = writer.FormDataContentType()
} else if len(req.FormData) > 0 {
// URL-encoded form data
form := url.Values{}
for key, value := range req.FormData {
form.Set(key, value)
}
body = strings.NewReader(form.Encode())
contentType = "application/x-www-form-urlencoded"
totalSize = int64(len(form.Encode()))
} else if req.FilePath != "" {
// POST with raw file body
fileInfo, err := os.Stat(req.FilePath)
if err != nil {
return nil, fmt.Errorf("failed to stat file: %w", err)
}
totalSize = fileInfo.Size()
file, err := os.Open(req.FilePath)
if err != nil {
return nil, fmt.Errorf("failed to open file: %w", err)
}
defer file.Close()
body = file
contentType = "application/octet-stream"
}
}
if body == nil {
return nil, fmt.Errorf("no upload data provided")
}
// Create HTTP request
httpReq, err := http.NewRequestWithContext(ctx, req.Method, req.URL, body)
if err != nil {
return nil, fmt.Errorf("failed to create request: %w", err)
}
// Set headers
httpReq.Header.Set("Content-Type", contentType)
httpReq.Header.Set("User-Agent", c.config.UserAgent)
for key, value := range req.Headers {
httpReq.Header.Set(key, value)
}
// Apply authentication
if c.config.Auth.Username != "" {
authType := c.config.Auth.AuthType
if authType == "" {
authType = "auto"
}
if authType == "auto" || authType == "basic" {
// Try basic auth first
applyBasicAuth(httpReq, c.config.Auth.Username, c.config.Auth.Password)
}
}
// Apply OAuth token if configured
if c.config.Auth.OAuth != nil && c.config.Auth.OAuth.AccessToken != "" {
oauthClient := auth.NewOAuthClient(c.config.Auth.OAuth)
if oauthClient.IsTokenValid() {
oauthClient.ApplyToken(httpReq)
}
}
// Execute request
if c.config.RateLimiter != nil {
// Wrap body with rate limiter for upload
body = c.config.RateLimiter.WrapReader(body)
httpReq.Body = io.NopCloser(body)
}
// Track progress
if req.ProgressCallback != nil && totalSize > 0 {
body = &progressReader{
r: body,
callback: req.ProgressCallback,
total: totalSize,
start: startTime,
offset: 0,
}
httpReq.Body = io.NopCloser(body)
}
resp, err := c.httpClient.Do(httpReq)
if err != nil {
return nil, fmt.Errorf("upload request failed: %w", err)
}
defer resp.Body.Close()
// Read response body
respBody, err := io.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("failed to read response: %w", err)
}
duration := time.Since(startTime)
return &UploadResult{
StatusCode: resp.StatusCode,
ContentLength: resp.ContentLength,
Duration: duration,
BytesUploaded: totalSize,
Speed: float64(totalSize) / duration.Seconds(),
ResponseBody: string(respBody),
}, nil
}
// UploadSimple performs a simple file upload with progress tracking
func (c *Client) UploadSimple(ctx context.Context, method, targetURL, filePath string, verbose bool) (*UploadResult, error) {
fileInfo, err := os.Stat(filePath)
if err != nil {
return nil, fmt.Errorf("failed to stat file: %w", err)
}
totalSize := fileInfo.Size()
_ = totalSize // Used in progress callback
file, err := os.Open(filePath)
if err != nil {
return nil, fmt.Errorf("failed to open file: %w", err)
}
defer file.Close()
var progressCallback func(int64, int64, float64)
if verbose {
progressCallback = func(current, total int64, speed float64) {
percent := float64(current) / float64(total) * 100
fmt.Fprintf(os.Stderr, "\r[upload] %s/%s (%.1f%%) %s/s",
format.Bytes(current),
format.Bytes(total),
percent,
format.Speed(speed))
}
}
req := &UploadRequest{
URL: targetURL,
Method: method,
FilePath: filePath,
Timeout: c.config.Transport.Timeout,
ProgressCallback: progressCallback,
Headers: make(map[string]string),
}
// Copy headers from client config
for k, v := range c.config.Headers {
req.Headers[k] = v
}
result, err := c.Upload(ctx, req)
if err != nil {
return nil, err
}
if verbose {
fmt.Fprintf(os.Stderr, "\n")
}
return result, nil
}
// UploadMultipart performs a multipart POST upload with files
func (c *Client) UploadMultipart(ctx context.Context, targetURL string, files []UploadFile, formData map[string]string, verbose bool) (*UploadResult, error) {
var progressCallback func(int64, int64, float64)
if verbose {
progressCallback = func(current, total int64, speed float64) {
percent := float64(current) / float64(total) * 100
fmt.Fprintf(os.Stderr, "\r[upload] %s/%s (%.1f%%) %s/s",
format.Bytes(current),
format.Bytes(total),
percent,
format.Speed(speed))
}
}
req := &UploadRequest{
URL: targetURL,
Method: "POST",
Files: files,
FormData: formData,
Timeout: c.config.Transport.Timeout,
ProgressCallback: progressCallback,
Headers: make(map[string]string),
}
for k, v := range c.config.Headers {
req.Headers[k] = v
}
result, err := c.Upload(ctx, req)
if err != nil {
return nil, err
}
if verbose {
fmt.Fprintf(os.Stderr, "\n")
}
return result, nil
}
// applyBasicAuth applies HTTP Basic Authentication to request
func applyBasicAuth(req *http.Request, username, password string) {
req.SetBasicAuth(username, password)
}