Files
sif/internal/scan/git.go
T
vmfunc 0383a7bcd2 perf(scan): drain response bodies so pooled connections get reused
go only returns a conn to the idle pool when the body is read to EOF
before Close. the header-only and early-return scan paths closed an
unread body, leaking the conn and forcing a fresh dial each request.
route those close sites through httpx.DrainClose so the tuned pool from
phase 1 actually gets reused. body-read paths (scanner/io.ReadAll) are
left untouched.
2026-06-10 15:50:58 -07:00

124 lines
3.9 KiB
Go

/*
·━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━·
: :
: █▀ █ █▀▀ · Blazing-fast pentesting suite :
: ▄█ █ █▀ · BSD 3-Clause License :
: :
: (c) 2022-2026 vmfunc, xyzeva, :
: lunchcat alumni & contributors :
: :
·━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━·
*/
package scan
import (
"bufio"
"context"
"net/http"
"strconv"
"strings"
"sync"
"time"
charmlog "github.com/charmbracelet/log"
"github.com/dropalldatabases/sif/internal/httpx"
"github.com/dropalldatabases/sif/internal/logger"
"github.com/dropalldatabases/sif/internal/output"
)
// gitURL is a var so integration tests can repoint it at a fixture.
var gitURL = "https://raw.githubusercontent.com/dropalldatabases/sif-runtime/main/git/"
const gitFile = "git.txt"
func Git(url string, timeout time.Duration, threads int, logdir string) ([]string, error) {
log := output.Module("GIT")
log.Start()
spin := output.NewSpinner("Scanning for exposed git repositories")
spin.Start()
sanitizedURL := stripScheme(url)
if logdir != "" {
if err := logger.WriteHeader(sanitizedURL, logdir, "git directory fuzzing"); err != nil {
spin.Stop()
log.Error("Error creating log file: %v", err)
return nil, err
}
}
client := httpx.Client(timeout)
req, err := http.NewRequestWithContext(context.TODO(), http.MethodGet, gitURL+gitFile, http.NoBody)
if err != nil {
spin.Stop()
log.Error("Error creating git list request: %s", err)
return nil, err
}
resp, err := client.Do(req)
if err != nil {
spin.Stop()
log.Error("Error downloading git list: %s", err)
return nil, err
}
defer resp.Body.Close()
var gitUrls []string
scanner := bufio.NewScanner(resp.Body)
scanner.Split(bufio.ScanLines)
for scanner.Scan() {
gitUrls = append(gitUrls, scanner.Text())
}
var wg sync.WaitGroup
var mu sync.Mutex
wg.Add(threads)
foundUrls := []string{}
for thread := 0; thread < threads; thread++ {
go func(thread int) {
defer wg.Done()
for i, repourl := range gitUrls {
if i%threads != thread {
continue
}
charmlog.Debugf("%s", repourl)
gitReq, err := http.NewRequestWithContext(context.TODO(), http.MethodGet, url+"/"+repourl, http.NoBody)
if err != nil {
charmlog.Debugf("Error creating request for %s: %s", repourl, err)
continue
}
resp, err := client.Do(gitReq) //nolint:bodyclose // drained and closed via httpx.DrainClose
if err != nil {
charmlog.Debugf("Error %s: %s", repourl, err)
continue
}
if resp.StatusCode == 200 && !strings.HasPrefix(resp.Header.Get("Content-Type"), "text/html") {
spin.Stop()
log.Success("Git found at %s [%s]", output.Highlight.Render(repourl), output.Status.Render(strconv.Itoa(resp.StatusCode)))
spin.Start()
if logdir != "" {
logger.Write(sanitizedURL, logdir, strconv.Itoa(resp.StatusCode)+" git found at ["+repourl+"]\n")
}
mu.Lock()
foundUrls = append(foundUrls, resp.Request.URL.String())
mu.Unlock()
}
// status/headers only; drain so the conn returns to the pool.
httpx.DrainClose(resp)
}
}(thread)
}
wg.Wait()
spin.Stop()
log.Complete(len(foundUrls), "found")
return foundUrls, nil
}