Support emoji, hashtags, user mentions, URLs and replys

go.mod

@@ -9,6 +9,6 @@ require (
 	github.com/dustin/go-jsonpointer v0.0.0-20160814072949-ba0abeacc3dc // indirect
 	github.com/dustin/gojson v0.0.0-20160307161227-2e71ec9dd5ad // indirect
 	github.com/garyburd/go-oauth v0.0.0-20180319155456-bca2e7f09a17 // indirect
-	github.com/joho/godotenv v1.3.0 // indirect
+	github.com/joho/godotenv v1.3.0
 	golang.org/x/net v0.0.0-20210119194325-5f4716e94777 // indirect
 )

main.go

@@ -8,6 +8,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -67,6 +68,28 @@ func getTweet(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	re := regexp.MustCompile(`[\x{1F300}-\x{1F6FF}]`)
+	emojis := re.FindAllString(tweet.FullText, -1)
+
+	emojiCount := 0
+	for _, emoji := range emojis {
+		emojiCount += len([]byte(emoji)) - 1
+	}
+
+	fmt.Println(tweet.FullText)
+
+	tweet.FullText = tweet.FullText[tweet.DisplayTextRange[0] : tweet.DisplayTextRange[1]+emojiCount]
+
+	for _, user := range tweet.Entities.User_mentions {
+		tweet.FullText = strings.ReplaceAll(tweet.FullText, "@"+user.Screen_name, fmt.Sprintf("<a href=\"https://twitter.com/%s/\">@%s</a>", user.Screen_name, user.Screen_name))
+	}
+	for _, url := range tweet.Entities.Urls {
+		tweet.FullText = strings.ReplaceAll(tweet.FullText, url.Url, fmt.Sprintf("<a href=\"https://twitter.com/%s/\">%s</a>", url.Expanded_url, url.Display_url))
+	}
+	for _, hashtag := range tweet.Entities.Hashtags {
+		tweet.FullText = strings.ReplaceAll(tweet.FullText, "#"+hashtag.Text, fmt.Sprintf("<a href=\"https://twitter.com/hashtag/%s\">#%s</a>", hashtag.Text, hashtag.Text))
+	}
+
 	templateFuncs := template.FuncMap{
 		"base64": func(url string) string {
 			res, err := http.Get(url)
@@ -85,6 +108,9 @@ func getTweet(w http.ResponseWriter, r *http.Request) {
 			t, _ := time.Parse(tweetDateLayout, date)
 			return t.Format("3:04 PM · Jan 2, 2006")
 		},
+		"html": func(in string) template.HTML {
+			return template.HTML(in)
+		},
 	}
 
 	t := template.Must(
@@ -93,6 +119,7 @@ func getTweet(w http.ResponseWriter, r *http.Request) {
 			ParseFiles("tweet.svg.tmpl"))
 
 	w.Header().Set("Content-type", "image/svg+xml")
+	w.Header().Set("content-encoding", "br")
 	err = t.Execute(w, tweet)
 	if err != nil {
 		fmt.Println(err)

tweet.svg.tmpl

@@ -4,6 +4,7 @@
 		.tweetsvg{clear:none;font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;}
 		.tweetsvg.text{font-size: 23px;}
 		a.tweetsvg{color: rgb(27, 149, 224); text-decoration:none;}
+		.tweetsvg a { color: #1da1f2; }
 		blockquote.tweetsvg{margin:1px; background-color:#fefefe; border-radius:2%; border-style:solid; border-width:.1em; border-color:#ddd; padding:1em; font-family:sans; width:29rem}
 		.avatar-tweetsvg{float:left; width:4rem; height:4rem; border-radius:50%;margin-right:.5rem;;margin-bottom:.5rem;border-style: solid; border-width:.1em; border-color:#ddd;}
 		h1.tweetsvg{margin:0;font-size:15px;text-decoration:none;color:#000;}
@@ -12,6 +13,7 @@
 		hr.tweetsvg{color:#ddd;}
 		.media-tweetsvg{border-radius:2%; max-width:100%;border-radius: 2%; border-style: solid; border-width: .1em; border-color: #ddd;}
 		time.tweetsvg{font-size:15px;margin:0;margin-left: 2px;padding-bottom:1rem;color:rgb(101, 119, 134);text-decoration:none;}
+		.tweetsvg.reply{font-size:15px;color:rgb(110, 118, 125);}
 	</style>
 	<blockquote class="tweetsvg" xmlns="http://www.w3.org/1999/xhtml">
 	<a class="tweetsvg" href="https://twitter.com/{{ .User.ScreenName }}/"><img class="avatar-tweetsvg" alt="" src="data:image/jpeg;base64,{{ base64 .User.ProfileImageUrlHttps }}" /></a>
@@ -20,7 +22,11 @@
 
 		<a class="tweetsvg" href="https://twitter.com/{{ .User.ScreenName }}/"><h2 class="tweetsvg">@{{ .User.ScreenName }}</h2></a>
 
-		<p class="tweetsvg text">{{ .Text }}</p>
+		{{ if .InReplyToScreenName }}
+		<p class="tweetsvg reply">Replying to <a href="https://twitter.com/{{ .InReplyToScreenName }}/">@{{ .InReplyToScreenName }}</a></p>
+		{{ end }}
+
+		<p class="tweetsvg text">{{ html .FullText }}</p>
 
 		{{ if .ExtendedEntities }}
 		{{ range .ExtendedEntities.Media }}