go-gemini/examples/client.go

95 lines
1.9 KiB
Go
Raw Normal View History

2020-10-12 14:34:52 -06:00
// +build ignore
2020-09-21 15:23:51 -06:00
package main
import (
"bufio"
2020-09-27 21:49:41 -06:00
"crypto/tls"
2020-10-31 20:50:42 -06:00
"crypto/x509"
2020-09-21 15:23:51 -06:00
"fmt"
2020-10-27 17:16:55 -06:00
"io/ioutil"
"log"
2020-09-21 15:23:51 -06:00
"os"
2020-09-27 21:49:41 -06:00
"time"
2020-10-27 20:12:10 -06:00
"git.sr.ht/~adnano/go-gemini"
2020-09-21 15:23:51 -06:00
)
const trustPrompt = `The certificate offered by %s is of unknown trust. Its fingerprint is:
%s
If you knew the fingerprint to expect in advance, verify that this matches.
Otherwise, this should be safe to trust.
[t]rust always; trust [o]nce; [a]bort
=> `
2020-09-25 17:53:50 -06:00
var (
2020-09-27 17:45:48 -06:00
scanner = bufio.NewScanner(os.Stdin)
2020-10-27 20:12:10 -06:00
client = &gemini.Client{}
2020-09-25 17:53:50 -06:00
)
2020-09-21 15:23:51 -06:00
func init() {
client.Timeout = 30 * time.Second
2020-10-31 20:50:42 -06:00
client.KnownHosts.LoadDefault()
client.TrustCertificate = func(hostname string, cert *x509.Certificate) gemini.Trust {
2020-11-05 13:27:12 -07:00
fingerprint := gemini.NewFingerprint(cert)
fmt.Printf(trustPrompt, hostname, fingerprint.Hex)
2020-10-31 20:50:42 -06:00
scanner.Scan()
switch scanner.Text() {
case "t":
return gemini.TrustAlways
case "o":
return gemini.TrustOnce
default:
return gemini.TrustNone
}
}
2020-10-28 11:40:25 -06:00
client.CreateCertificate = func(hostname, path string) (tls.Certificate, error) {
fmt.Println("Generating client certificate for", hostname, path)
return gemini.CreateCertificate(gemini.CertificateOptions{
Duration: time.Hour,
})
2020-09-27 21:49:41 -06:00
}
client.GetInput = func(prompt string, sensitive bool) (string, bool) {
fmt.Printf("%s: ", prompt)
scanner.Scan()
return scanner.Text(), true
}
}
2020-09-21 15:23:51 -06:00
func main() {
if len(os.Args) < 2 {
fmt.Printf("usage: %s gemini://... [host]", os.Args[0])
2020-09-27 17:45:48 -06:00
os.Exit(1)
}
url := os.Args[1]
2020-10-27 20:12:10 -06:00
req, err := gemini.NewRequest(url)
2020-09-27 17:45:48 -06:00
if err != nil {
fmt.Println(err)
os.Exit(1)
}
if len(os.Args) == 3 {
req.Host = os.Args[2]
}
2020-09-27 17:45:48 -06:00
resp, err := client.Do(req)
if err != nil {
fmt.Println(err)
os.Exit(1)
}
defer resp.Body.Close()
if resp.Status.Class() == gemini.StatusClassSuccess {
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
fmt.Print(string(body))
} else {
fmt.Printf("request failed: %d %s: %s", resp.Status, resp.Status.Message(), resp.Meta)
2020-09-21 15:23:51 -06:00
}
}