1package main
2
3import (
4	"bufio"
5	"crypto/tls"
6	"fmt"
7	"io"
8	"net/http"
9	"regexp"
10	"time"
11)
12
13func validURL(url string) bool {
14	r := regexp.MustCompile("(?i)^http(?:s)?://")
15	return r.MatchString(url)
16}
17
18func getURL(url string, insecure bool) (io.Reader, error) {
19	tr := &http.Transport{
20		TLSClientConfig: &tls.Config{InsecureSkipVerify: insecure},
21	}
22	client := http.Client{
23		Transport: tr,
24		Timeout:   20 * time.Second,
25	}
26
27	req, err := http.NewRequest("GET", url, nil)
28	if err != nil {
29		return nil, err
30	}
31	req.Header.Set("User-Agent", fmt.Sprintf("gron/%s", gronVersion))
32	req.Header.Set("Accept", "application/json")
33
34	resp, err := client.Do(req)
35
36	if err != nil {
37		return nil, err
38	}
39
40	return bufio.NewReader(resp.Body), err
41}
42