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Revert "feat: Checking socks5 proxy before launching a scan #1001 (#1169)" 

This reverts commit c125df4ef6.
dev
sandeep 2021-11-05 20:09:00 +05:30
parent c125df4ef6
commit 89c6e76772
11 changed files with 65 additions and 170 deletions
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5
README.md
View File

@ -162,8 +162,9 @@ DEBUG:
-debug show all requests and responses
-debug-req show all sent requests
-debug-resp show all received responses
-proxy string List of HTTP(s)/SOCKS5 proxy servers or path to file containing such list
-trace-log string file to write sent requests trace log
-proxy, -proxy-url string URL of the HTTP proxy server
-proxy-socks-url string URL of the SOCKS proxy server
-tlog, -trace-log string file to write sent requests trace log
-version show nuclei version
-v, -verbose show verbose output
-vv display extra verbose information

3
README_CN.md
View File

@ -121,7 +121,8 @@ nuclei -h
|templates-version|显示已安装的模板版本|nuclei -templates-version|
|v|显示发送请求的详细信息|nuclei -v|
|version|显示nuclei的版本号|nuclei -version|
|proxy|输入代理地址|nuclei -proxy ./proxy.txt|
|proxy-url|输入代理地址|nuclei -proxy-url hxxp://127.0.0.1:8080|
|proxy-socks-url|输入socks代理地址|nuclei -proxy-socks-url socks5://127.0.0.1:8080|
|random-agent|使用随机的UA|nuclei -random-agent|
|H|自定义请求头|nuclei -H “x-bug-bounty:hacker”|

8
v2/cmd/nuclei/main.go
View File

@ -134,9 +134,11 @@ on extensive configurability, massive extensibility and ease of use.`)
flagSet.BoolVar(&options.DebugRequests, "debug-req", false, "show all sent requests"),
flagSet.BoolVar(&options.DebugResponse, "debug-resp", false, "show all received responses"),
/* TODO should auto-set the HTTP_PROXY variable for the process? */
flagSet.NormalizedStringSliceVarP(&options.Proxy, "proxy", "p", []string{}, "List of HTTP(s)/SOCKS5 proxy servers or path to file containing such list"),
flagSet.StringVar(&options.TraceLogFile, "trace-log", "", "file to write sent requests trace log"),
/* TODO why the separation? http://proxy:port vs socks5://proxy:port etc
TODO should auto-set the HTTP_PROXY variable for the process? */
flagSet.StringVarP(&options.ProxyURL, "proxy-url", "proxy", "", "URL of the HTTP proxy server"),
flagSet.StringVar(&options.ProxySocksURL, "proxy-socks-url", "", "URL of the SOCKS proxy server"),
flagSet.StringVarP(&options.TraceLogFile, "trace-log", "tlog", "", "file to write sent requests trace log"),
flagSet.BoolVar(&options.Version, "version", false, "show nuclei version"),
flagSet.BoolVarP(&options.Verbose, "verbose", "v", false, "show verbose output"),
flagSet.BoolVar(&options.VerboseVerbose, "vv", false, "display templates loaded for scan"),

25
v2/internal/runner/options.go
View File

@ -3,6 +3,7 @@ package runner
import (
"bufio"
"errors"
"net/url"
"os"
"path/filepath"
"strings"
@ -23,6 +24,7 @@ func ParseOptions(options *types.Options) {
// Read the inputs and configure the logging
configureOutput(options)
// Show the user the banner
showBanner()
@ -87,10 +89,15 @@ func validateOptions(options *types.Options) error {
if options.Verbose && options.Silent {
return errors.New("both verbose and silent mode specified")
}
//loading the proxy server list from file or cli and test the connectivity
if err := loadProxyServers(options); err != nil {
if err := validateProxyURL(options.ProxyURL, "invalid http proxy format (It should be http://username:password@host:port)"); err != nil {
return err
}
if err := validateProxyURL(options.ProxySocksURL, "invalid socks proxy format (It should be socks5://username:password@host:port)"); err != nil {
return err
}
if options.Validate {
options.Headless = true // required for correct validation of headless templates
validateTemplatePaths(options.TemplatesDirectory, options.Templates, options.Workflows)
@ -99,6 +106,19 @@ func validateOptions(options *types.Options) error {
return nil
}
func validateProxyURL(proxyURL, message string) error {
if proxyURL != "" && !isValidURL(proxyURL) {
return errors.New(message)
}
return nil
}
func isValidURL(urlString string) bool {
_, err := url.Parse(urlString)
return err == nil
}
// configureOutput configures the output logging levels to be displayed on the screen
func configureOutput(options *types.Options) {
// If the user desires verbose output, show verbose output
@ -144,6 +164,7 @@ func loadResolvers(options *types.Options) {
func validateTemplatePaths(templatesDirectory string, templatePaths, workflowPaths []string) {
allGivenTemplatePaths := append(templatePaths, workflowPaths...)
for _, templatePath := range allGivenTemplatePaths {
if templatesDirectory != templatePath && filepath.IsAbs(templatePath) {
fileInfo, err := os.Stat(templatePath)

123
v2/internal/runner/proxy.go
View File

@ -1,123 +0,0 @@
package runner
import (
"bufio"
"errors"
"fmt"
"net"
"net/url"
"os"
"strings"
"time"
"github.com/projectdiscovery/fileutil"
"github.com/projectdiscovery/gologger"
"github.com/projectdiscovery/nuclei/v2/pkg/types"
)
var proxyURLList []url.URL
// loadProxyServers load list of proxy servers from file or comma seperated
func loadProxyServers(options *types.Options) error {
if len(options.Proxy) == 0 {
return nil
}
for _, p := range options.Proxy {
if proxyURL, err := validateProxyURL(p); err == nil {
proxyURLList = append(proxyURLList, proxyURL)
} else if fileutil.FileExists(p) {
file, err := os.Open(p)
if err != nil {
return fmt.Errorf("could not open proxy file: %s", err)
}
defer file.Close()
scanner := bufio.NewScanner(file)
for scanner.Scan() {
proxy := scanner.Text()
if strings.TrimSpace(proxy) == "" {
continue
}
if proxyURL, err := validateProxyURL(proxy); err != nil {
return err
} else {
proxyURLList = append(proxyURLList, proxyURL)
}
}
} else {
return fmt.Errorf("invalid proxy file or URL provided for %s", p)
}
}
return processProxyList(options)
}
func processProxyList(options *types.Options) error {
if len(proxyURLList) == 0 {
return fmt.Errorf("could not find any valid proxy")
} else {
done := make(chan bool)
exitCounter := make(chan bool)
counter := 0
for _, url := range proxyURLList {
go runProxyConnectivity(url, options, done, exitCounter)
}
for {
select {
case <-done:
{
close(done)
return nil
}
case <-exitCounter:
{
if counter += 1; counter == len(proxyURLList) {
return errors.New("no reachable proxy found")
}
}
}
}
}
}
func runProxyConnectivity(proxyURL url.URL, options *types.Options, done chan bool, exitCounter chan bool) {
if err := testProxyConnection(proxyURL, options.Timeout); err == nil {
if types.ProxyURL == "" && types.ProxySocksURL == "" {
assignProxyURL(proxyURL, options)
done <- true
}
}
exitCounter <- true
}
func testProxyConnection(proxyURL url.URL, timeoutDelay int) error {
timeout := time.Duration(timeoutDelay) * time.Second
_, err := net.DialTimeout("tcp", fmt.Sprintf("%s:%s", proxyURL.Hostname(), proxyURL.Port()), timeout)
if err != nil {
return err
}
return nil
}
func assignProxyURL(proxyURL url.URL, options *types.Options) {
os.Setenv(types.HTTP_PROXY_ENV, proxyURL.String())
if proxyURL.Scheme == types.HTTP || proxyURL.Scheme == types.HTTPS {
types.ProxyURL = proxyURL.String()
types.ProxySocksURL = ""
gologger.Verbose().Msgf("Using %s as proxy server", proxyURL.String())
} else if proxyURL.Scheme == types.SOCKS5 {
types.ProxyURL = ""
types.ProxySocksURL = proxyURL.String()
gologger.Verbose().Msgf("Using %s as socket proxy server", proxyURL.String())
}
}
func validateProxyURL(proxy string) (url.URL, error) {
if url, err := url.Parse(proxy); err == nil && isSupportedProtocol(url.Scheme) {
return *url, nil
}
return url.URL{}, errors.New("invalid proxy format (It should be http[s]/socks5://[username:password@]host:port)")
}
//isSupportedProtocol checks given protocols are supported
func isSupportedProtocol(value string) bool {
return value == types.HTTP || value == types.HTTPS || value == types.SOCKS5
}

3
v2/internal/testutils/testutils.go
View File

@ -51,7 +51,8 @@ var DefaultOptions = &types.Options{
Targets: []string{},
TargetsFilePath: "",
Output: "",
Proxy: []string{},
ProxyURL: "",
ProxySocksURL: "",
TemplatesDirectory: "",
TraceLogFile: "",
Templates: []string{},

4
v2/pkg/protocols/headless/engine/engine.go
View File

@ -63,8 +63,8 @@ func New(options *types.Options) (*Browser, error) {
} else {
chromeLauncher = chromeLauncher.Headless(true)
}
if types.ProxyURL != "" {
chromeLauncher = chromeLauncher.Proxy(types.ProxyURL)
if options.ProxyURL != "" {
chromeLauncher = chromeLauncher.Proxy(options.ProxyURL)
}
launcherURL, err := chromeLauncher.Launch()
if err != nil {

5
v2/pkg/protocols/headless/engine/http_client.go
View File

@ -23,8 +23,9 @@ func newhttpClient(options *types.Options) *http.Client {
InsecureSkipVerify: true,
},
}
if types.ProxyURL != "" {
if proxyURL, err := url.Parse(types.ProxyURL); err == nil {
if options.ProxyURL != "" {
if proxyURL, err := url.Parse(options.ProxyURL); err == nil {
transport.Proxy = http.ProxyURL(proxyURL)
}
}

38
v2/pkg/protocols/http/httpclientpool/clientpool.go
View File

@ -128,8 +128,9 @@ func wrappedGet(options *types.Options, configuration *Configuration) (*retryabl
return client, nil
}
poolMutex.RUnlock()
if types.ProxyURL != "" {
proxyURL, err = url.Parse(types.ProxyURL)
if options.ProxyURL != "" {
proxyURL, err = url.Parse(options.ProxyURL)
}
if err != nil {
return nil, err
@ -171,24 +172,27 @@ func wrappedGet(options *types.Options, configuration *Configuration) (*retryabl
},
DisableKeepAlives: disableKeepAlives,
}
if proxyURL != nil {
// Attempts to overwrite the dial function with the socks proxied version
if proxyURL.Scheme == types.SOCKS5 {
var proxyAuth *proxy.Auth = &proxy.Auth{}
proxyAuth.User = proxyURL.User.Username()
proxyAuth.Password, _ = proxyURL.User.Password()
dialer, proxyErr := proxy.SOCKS5("tcp", fmt.Sprintf("%s:%s", proxyURL.Hostname(), proxyURL.Port()), proxyAuth, proxy.Direct)
// Attempts to overwrite the dial function with the socks proxied version
if options.ProxySocksURL != "" {
var proxyAuth *proxy.Auth
dc := dialer.(interface {
DialContext(ctx context.Context, network, addr string) (net.Conn, error)
})
if proxyErr == nil {
transport.DialContext = dc.DialContext
}
} else {
transport.Proxy = http.ProxyURL(proxyURL)
socksURL, proxyErr := url.Parse(options.ProxySocksURL)
if proxyErr == nil {
proxyAuth = &proxy.Auth{}
proxyAuth.User = socksURL.User.Username()
proxyAuth.Password, _ = socksURL.User.Password()
}
dialer, proxyErr := proxy.SOCKS5("tcp", fmt.Sprintf("%s:%s", socksURL.Hostname(), socksURL.Port()), proxyAuth, proxy.Direct)
dc := dialer.(interface {
DialContext(ctx context.Context, network, addr string) (net.Conn, error)
})
if proxyErr == nil {
transport.DialContext = dc.DialContext
}
}
if proxyURL != nil {
transport.Proxy = http.ProxyURL(proxyURL)
}
var jar *cookiejar.Jar

15
v2/pkg/types/proxy.go
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@ -1,15 +0,0 @@
package types
const (
HTTP_PROXY_ENV = "HTTP_PROXY"
SOCKS5 = "socks5"
HTTP = "http"
HTTPS = "https"
)
var (
// ProxyURL is the URL for the proxy server
ProxyURL string
// ProxySocksURL is the URL for the proxy socks server
ProxySocksURL string
)

6
v2/pkg/types/types.go
View File

@ -49,8 +49,10 @@ type Options struct {
TargetsFilePath string
// Output is the file to write found results to.
Output string
// List of HTTP(s)/SOCKS5 proxy servers or path to file containing such list
Proxy goflags.NormalizedStringSlice
// ProxyURL is the URL for the proxy server
ProxyURL string
// ProxySocksURL is the URL for the proxy socks server
ProxySocksURL string
// TemplatesDirectory is the directory to use for storing templates
TemplatesDirectory string
// TraceLogFile specifies a file to write with the trace of all requests