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package main
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io"
"log"
"net/http"
"os"
"path/filepath"
"gopkg.in/yaml.v3"
)
var ConfigFn = filepath.Join(os.Getenv("HOME"), ".paste")
var TokenFN = filepath.Join(os.Getenv("HOME"), ".paste-token")
var logger = log.New(os.Stderr, "", 0)
var httpC = &http.Client{}
type Paste struct {
Id string
Title string
Tags map[string]struct{}
Content string
}
type Config struct {
Username string
Password string
Hostname string
}
func loadConfig(fn string) (*Config, error) {
fh, err := os.Open(fn)
if err != nil {
return nil, err
}
dec := yaml.NewDecoder(fh)
dec.KnownFields(true)
c := &Config{}
err = dec.Decode(c)
return c, err
}
func (c *Config) NoTokenReq(method, pth string, data interface{}) (*http.Response, error) {
b, err := json.Marshal(data)
if err != nil {
return nil, err
}
buf := bytes.NewBuffer(b)
req, err := http.NewRequest(method, c.Hostname+pth, buf)
if err != nil {
logger.Fatal(err)
}
req.Header.Add("Content-type", "application/json")
resp, err := httpC.Do(req)
if err != nil {
logger.Fatal(err)
}
return resp, err
}
func (c *Config) Req(method, pth string, data interface{}) (*http.Response, error) {
b, err := json.Marshal(data)
if err != nil {
return nil, err
}
buf := bytes.NewBuffer(b)
req, err := http.NewRequest(method, c.Hostname+pth, buf)
if err != nil {
logger.Fatal(err)
}
req.Header.Add("Authorization", "Bearer "+c.Token())
req.Header.Add("Content-type", "application/json")
resp, err := httpC.Do(req)
if err != nil {
logger.Fatal(err)
}
return resp, err
}
func (c *Config) Token() string {
s, err := c.GetToken()
if err != nil {
logger.Fatal(err)
}
return s
}
func (c *Config) GetToken() (string, error) {
resp, err := c.NoTokenReq("POST", "/login", map[string]string{
"Username": c.Username,
"Password": c.Password,
})
if err != nil {
return "", err
}
respData := map[string]string{}
dec := json.NewDecoder(resp.Body)
err = dec.Decode(&respData)
if err != nil {
return "", err
}
token, ok := respData["token"]
if !ok {
logger.Fatal("Cannot have empty token")
}
// logger.Println(token)
return token, nil
}
func (c *Config) NewPaste(title string) {
buf := &bytes.Buffer{}
_, err := io.Copy(buf, os.Stdin)
if err != nil {
logger.Fatal(err)
}
p := &Paste{
Title: title,
Content: buf.String(),
}
resp, err := c.Req("POST", "/new", p)
if err != nil {
logger.Fatal(err)
}
if resp.StatusCode != 200 {
io.Copy(os.Stderr, resp.Body)
os.Exit(1)
}
out := map[string]string{}
dec := json.NewDecoder(resp.Body)
err = dec.Decode(&out)
if err != nil {
logger.Println(err)
}
fmt.Printf("%s/view/%s\n", c.Hostname, out["id"])
}
func main() {
fl := flag.NewFlagSet("simple pastebin client", flag.ExitOnError)
fl.StringVar(&ConfigFn, "c", ConfigFn, "Configuration file")
title := fl.String("t", "", "Optional title for the message")
debug := fl.Bool("d", false, "debugging add information to the logging output DEBUG=true|false controls this as well")
_ = fl.Parse(os.Args[1:])
if d := os.Getenv("DEBUG"); d == "true" || *debug {
logger.SetFlags(log.LstdFlags | log.Llongfile)
}
conf, err := loadConfig(ConfigFn)
if err != nil {
logger.Println(err)
fmt.Println("")
fmt.Println("//")
fmt.Println("// Example configuration file")
enc := yaml.NewEncoder(os.Stdout)
enc.SetIndent(2)
enc.Encode(&Config{
Username: "changeme",
Password: "changeme",
Hostname: "https://example.com/paste",
})
os.Exit(1)
}
conf.NewPaste(*title)
}
|
