From 548395a287c24f002bd16b72fde353d9f13a6241 Mon Sep 17 00:00:00 2001
From: Mzack9999 <marco.rivoli.nvh@gmail.com>
Date: Fri, 1 May 2020 17:27:33 +0200
Subject: [PATCH] verbose proxy url validation

---
 go.mod                      |  2 +-
 go.sum                      |  4 ++--
 internal/runner/validate.go | 18 ++++++++++++++++++
 3 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/go.mod b/go.mod
index 4aa12abb..ae54f776 100644
--- a/go.mod
+++ b/go.mod
@@ -10,6 +10,6 @@ require (
 	github.com/projectdiscovery/gologger v1.0.0
 	github.com/projectdiscovery/retryabledns v1.0.4
 	github.com/projectdiscovery/retryablehttp-go v1.0.1
-	golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0
+	golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5
 	gopkg.in/yaml.v2 v2.2.8
 )
diff --git a/go.sum b/go.sum
index a242a457..e34472c1 100644
--- a/go.sum
+++ b/go.sum
@@ -26,8 +26,8 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0 h1:Jcxah/M+oLZ/R4/z5RzfPzGbPXnVDPkEDtf2JnuxN+U=
-golang.org/x/net v0.0.0-20200425230154-ff2c4b7c35a0/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
+golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5 h1:WQ8q63x+f/zpC8Ac1s9wLElVoHhm32p6tudrU72n1QA=
+golang.org/x/net v0.0.0-20200501053045-e0ff5e5a1de5/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/internal/runner/validate.go b/internal/runner/validate.go
index 786c84cc..30a19a33 100644
--- a/internal/runner/validate.go
+++ b/internal/runner/validate.go
@@ -2,6 +2,7 @@ package runner
 
 import (
 	"errors"
+	"net/url"
 
 	"github.com/projectdiscovery/gologger"
 )
@@ -21,9 +22,26 @@ func (options *Options) validateOptions() error {
 	if options.Targets == "" && !options.Stdin {
 		return errors.New("no target input provided")
 	}
+
+	// Validate proxy options if provided
+	if options.ProxyURL != "" && !isValidProxyURL(options.ProxyURL) {
+		return errors.New("invalid http proxy format (It should be http(s)://username:password@host:port)")
+	}
+	if options.ProxySocksURL != "" && !isValidProxyURL(options.ProxySocksURL) {
+		return errors.New("invalid socks proxy format (It should be socks5://username:password@host:port)")
+	}
+
 	return nil
 }
 
+func isValidProxyURL(URL string) bool {
+	if _, err := url.Parse(URL); err != nil {
+		return false
+	}
+
+	return true
+}
+
 // configureOutput configures the output on the screen
 func (options *Options) configureOutput() {
 	// If the user desires verbose output, show verbose output