Add the go program that copy from stdin to dpaste and stdout

main.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"mime/multipart"
+	"net/http"
+	"net/url"
+	"os"
+)
+
+var (
+	dpasteUrl string = "https://dpaste.de/api/"
+	lexer     string
+)
+
+func init() {
+	flag.StringVar(&lexer, "lexer", "go", "lexer options are: python, go, c, mysql, ...")
+}
+
+func main() {
+	flag.Parse()
+	var bufInput bytes.Buffer
+
+	var writers []io.Writer
+	writers = append(writers, os.Stdout)
+	writers = append(writers, &bufInput)
+	mWriter := io.MultiWriter(writers...)
+	if _, err := io.Copy(mWriter, os.Stdin); err != nil {
+		log.Fatal("Error while copying from stdin to stdout", err)
+	}
+
+	u, err := url.ParseRequestURI(dpasteUrl)
+	if err != nil {
+		log.Fatal("Error while parsing dpasteUrl", err)
+	}
+
+	var b bytes.Buffer
+	w := multipart.NewWriter(&b)
+	// Add field content
+	fw, err := w.CreateFormField("content")
+	if err != nil {
+		log.Fatal("Error while creating `content` field", err)
+	}
+	if _, err := fw.Write(bufInput.Bytes()); err != nil {
+		log.Fatal("Error while writing to `content` field", err)
+	}
+	fw, err = w.CreateFormField("lexer")
+	if err != nil {
+		log.Fatal("Error while creating `lexer` field", err)
+	}
+	if _, err := fw.Write([]byte(lexer)); err != nil {
+		log.Fatal("Error while writing to `lexer` field", err)
+	}
+	// Don't forget to close the multipart writer.
+	// If you don't close it, your request will be missing the terminating boundary.
+	w.Close()
+
+	// Now that you have a form, you can submit it to your handler.
+	req, err := http.NewRequest("POST", u.String(), &b)
+	if err != nil {
+		log.Fatalf("Error while building the request to dpaste:", err)
+	}
+	// Don't forget to set the content type, this will contain the boundary.
+	req.Header.Set("Content-Type", w.FormDataContentType())
+
+	// Submit the request
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		log.Fatalf("Error while posting to dpaste:", err)
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatalf("Error while reading the response Body:", err)
+	}
+	fmt.Println("\n\ndpasted :", string(body)[1:len(string(body))-1])
+}