mirror of
https://github.com/celogeek/imgcat.git
synced 2025-05-24 15:52:38 +02:00
73 lines
1.3 KiB
Go
73 lines
1.3 KiB
Go
package main
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import (
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"encoding/base64"
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"fmt"
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"io"
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"log"
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"net/http"
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"os"
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"strings"
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"github.com/jessevdk/go-flags"
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)
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type Options struct {
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Url string `short:"u" long:"url" description:"url of the jpg"`
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Rows int `short:"r" long:"rows" description:"maximum number of rows"`
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}
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func PrintHeader(size int64, height int) {
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fmt.Printf("\033]1337")
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fmt.Printf(";File=")
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fmt.Printf(";inline=1")
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fmt.Printf(";size=%d;", size)
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if height > 0 {
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fmt.Printf(";height=%d", height)
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}
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fmt.Printf(":")
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}
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func PrintFooter() {
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fmt.Println("\a")
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}
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func PrintImg(img io.ReadCloser) {
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encoder := base64.NewEncoder(base64.StdEncoding, os.Stdout)
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defer img.Close()
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defer encoder.Close()
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buf := make([]byte, 8192)
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for {
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n, err := img.Read(buf)
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if err == io.EOF {
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break
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}
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encoder.Write(buf[:n])
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}
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}
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func main() {
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var options Options
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if _, err := flags.Parse(&options); err != nil {
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os.Exit(1)
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}
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if !(strings.HasPrefix(options.Url, "http://") || strings.HasPrefix(options.Url, "https://")) {
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log.Fatalln("url doesn't start with http")
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}
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resp, err := http.Get(options.Url)
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if err != nil {
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log.Fatalln(err)
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}
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if resp.StatusCode != 200 {
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log.Fatalln(fmt.Sprintf("Issue to get img, status = %d", resp.StatusCode))
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}
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PrintHeader(resp.ContentLength, options.Rows)
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PrintImg(resp.Body)
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PrintFooter()
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}
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