Update image inlining

go.mod

@@ -1,13 +1,8 @@
 module git.sr.ht/~sircmpwn/kineto
 
-go 1.21
+go 1.16
 
 require (
 	git.sr.ht/~adnano/go-gemini v0.1.17
 	git.sr.ht/~sircmpwn/getopt v0.0.0-20191230200459-23622cc906b3
 )
-
-require (
-	golang.org/x/net v0.0.0-20210119194325-5f4716e94777 // indirect
-	golang.org/x/text v0.3.3 // indirect
-)

main.go

@@ -10,7 +10,7 @@ import (
 	"net/http"
 	"net/url"
 	"os"
-	"slices"
+	"path/filepath"
 	"strings"
 	"time"
 	"unicode"
@@ -19,6 +19,9 @@ import (
 	"git.sr.ht/~sircmpwn/getopt"
 )
 
+// Source: https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types
+var imgexts = []string{".apng", ".png", ".avif", ".gif", ".jpg", ".jpeg", ".jfif", ".pjpeg", ".pjp", ".png", ".svg", ".webp", ".bmp", ".ico", ".cur", ".tif", ".tiff"}
+
 var gemtextPage = template.Must(template.
 	New("gemtext").
 	Funcs(template.FuncMap{
@@ -100,20 +103,22 @@ var gemtextPage = template.Must(template.
 				return nil
 			}
 		},
-		"is_image": func(s string) bool {
+		"isImage": func(s string) bool {
 			u, err := url.Parse(s)
-
 			if err != nil {
 				return false
 			}
-
-			parts := strings.Split(u.Path, ".")
-			extension := parts[len(parts)-1]
-
-			// Source: https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Image_types
-			knownExtensions := []string{"apng", "png", "avif", "gif", "jpg", "jpeg", "jfif", "pjpeg", "pjp", "png", "svg", "webp", "bmp", "ico", "cur", "tif", "tiff"}
-
-			return slices.Contains(knownExtensions, extension)
+			ext := strings.ToLower(filepath.Ext(u.Path))
+			log.Printf("Testing if %s is a known extension", ext)
+			for _, l := range imgexts {
+				log.Printf("Testing if %s == %s", ext, l)
+				if ext == l {
+					log.Printf("It is a known image!")
+					return true
+				}
+			}
+			log.Printf("Not an image")
+			return false
 		},
 		"url": func(ctx *GemtextContext, s string) template.URL {
 			u, err := url.Parse(s)
@@ -205,16 +210,18 @@ var gemtextPage = template.Must(template.
 	{{- with . | link }}
 	{{- $isList = false -}}
 	<p>
-	{{- if ( .URL | is_image) -}}
+	<a
+		href="{{.URL | url $ctx}}"
+	>
+	{{- if ( .URL | isImage ) -}}
 	<img
 		src="{{.URL | url $ctx}}"
 		{{if .Name}}alt="{{.Name}}" title="{{.Name}}"{{end}}
 	>
 	{{- else -}}
-	<a
-		href="{{.URL | url $ctx}}"
-	>{{if .Name}}{{.Name}}{{else}}{{.URL}}{{end}}</a>
+    {{if .Name}}{{.Name}}{{else}}{{.URL}}{{end}}
 	{{- end -}}
+    </a>
 	</p>
 	{{- end -}}
 
@@ -361,6 +368,10 @@ a:before {
 	left: -1.25rem;
 }
 
+a:has(img):before {
+    content: '';
+}
+
 pre {
 	background-color: #eee;
 	margin: 0 -1rem;