Change bot user-agent

Makefile

@@ -1,8 +1,10 @@
 NAME = lenmonitor
+FULL_NAME = LenMonitor
 MAIN_GO = ./cmd/*.go
 
 export GOMODULE111=on
-LDFLAGS = -w -s -X "main.Version=$(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')"
+VERSION = $(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')
+LDFLAGS = -w -s -X "main.Version=$(VERSION)" -X "internal/tester.UserAgent=$(FULL_NAME)/$(VERSION)"
 
 
 .PHONY: all fmt clean

internal/tester/tester.go

@@ -22,8 +22,11 @@ import (
 	"errors"
 	"net"
 	"net/http"
+	"time"
 )
 
+var UserAgent = "LenMonitor/unknown"
+
 var (
 	ErrFailedConnect = errors.New("tester: failed to connect to server via HTTP or HTTPS")
 	ErrNot200        = errors.New("tester: HTTP server response code is different from 200 when requesting HTTP and HTTPS")
@@ -69,10 +72,18 @@ func getHttpAndHttps(domain string, path string) (*http.Response, bool, bool, bo
 		// Disable redirect
 		CheckRedirect: func(req *http.Request, via []*http.Request) error {
 			return http.ErrUseLastResponse
-		}}
+		},
+		Timeout: 5 * time.Second,
+	}
 
 	// Try HTTP
-	respHttp, err := client.Get("http://" + domain + path)
+	reqHttp, err := http.NewRequest("GET", "http://"+domain+path, nil)
+	if err != nil {
+		return nil, domainIsIP, httpSupport, httpsSupport, httpToHttpsRedirect, false, err
+	}
+	reqHttp.Header.Set("User-Agent", UserAgent)
+
+	respHttp, err := client.Do(reqHttp)
 	if err != nil {
 		httpSupport = false
 
@@ -86,7 +97,13 @@ func getHttpAndHttps(domain string, path string) (*http.Response, bool, bool, bo
 	}
 
 	// Try HTTPS
-	respHttps, err := client.Get("https://" + domain + path)
+	reqHttps, err := http.NewRequest("GET", "https://"+domain+path, nil)
+	if err != nil {
+		return nil, domainIsIP, httpSupport, httpsSupport, httpToHttpsRedirect, false, err
+	}
+	reqHttps.Header.Set("User-Agent", UserAgent)
+
+	respHttps, err := client.Do(reqHttps)
 	if err != nil {
 		httpsSupport = false