78 lines
1.5 KiB
Go
78 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"io"
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"net/http"
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"os"
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"path"
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"strings"
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)
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func main() {
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if len(os.Args) != 4 {
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fmt.Println("Usage: go run twemoji.go [fishbowl].html files [fishbowl]-twemojied.html")
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os.Exit(1)
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}
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htmlPath := os.Args[1]
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filesDir := os.Args[2]
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htmlOutPath := os.Args[3]
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htmlBytes, err := os.ReadFile(htmlPath)
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if err != nil {
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panic(err)
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}
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html := string(htmlBytes)
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for {
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linkStart := strings.Index(html, "https://twemoji.maxcdn.com/")
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if linkStart == -1 {
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break
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}
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linkEnd := strings.Index(html[linkStart:], "\"") + linkStart
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link := html[linkStart:linkEnd]
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emojiFilenameStart := strings.LastIndex(link, "/") + 1
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emojiFilename := "twemoji_" + link[emojiFilenameStart:]
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emojiPath := path.Join(filesDir, emojiFilename)
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emojiResponse, err := http.Get(link)
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if err != nil {
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panic(err)
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}
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defer emojiResponse.Body.Close()
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if emojiResponse.StatusCode > 299 {
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panic("Non-200 status code: " + fmt.Sprint(emojiResponse.StatusCode))
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}
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emojiFile, err := os.Create(emojiPath)
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if err != nil {
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panic(err)
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}
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defer emojiFile.Close()
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_, err = io.Copy(emojiFile, emojiResponse.Body)
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if err != nil {
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panic(err)
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}
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html = strings.ReplaceAll(html, link, emojiPath)
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fmt.Println(emojiFilename)
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}
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html = strings.ReplaceAll(
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html,
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"<div class=\"chatlog\">",
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"<div class=\"chatlog\">\n<!-- Emojis by Twitter's Twemoji https://twemoji.twitter.com/ -->",
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)
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err = os.WriteFile(htmlOutPath, []byte(html), 0666)
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if err != nil {
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panic(err)
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}
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}
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