display a text share

internal/web/web.go

@@ -7,6 +7,7 @@ import (
 	"strconv"
 
 	"git.kapelle.org/niklas/s3share/internal/client"
+	"git.kapelle.org/niklas/s3share/internal/types"
 	"github.com/gorilla/mux"
 	"github.com/sirupsen/logrus"
 )
@@ -27,31 +28,11 @@ func StartWebserver(addr string, client client.Client) error {
 	})
 
 	r.HandleFunc("/s/{slug:[a-zA-Z0-9]{6}}", func(w http.ResponseWriter, r *http.Request) {
-		vars := mux.Vars(r)
-
-		share, err := client.GetShare(r.Context(), vars["slug"])
-		if err != nil {
-			logrus.Error(err.Error())
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
+		share := getShareHead(client, w, r)
 		if share == nil {
-			http.NotFound(w, r)
 			return
 		}
 
-		metadata, err := client.GetObjectMetadata(r.Context(), share.Key)
-		if err != nil {
-			logrus.Error(err.Error())
-			http.Error(w, err.Error(), http.StatusInternalServerError)
-			return
-		}
-
-		w.Header().Set("Content-Type", metadata.ContentType)
-		w.Header().Set("Content-Length", strconv.FormatInt(metadata.Size, 10))
-		w.Header().Set("Content-Disposition", "attachment; filename=\""+metadata.Filename+"\"")
-
 		obj, err := client.GetObjectFromShare(r.Context(), share)
 		if err != nil {
 			logrus.Error(err.Error())
@@ -67,6 +48,10 @@ func StartWebserver(addr string, client client.Client) error {
 		}
 	})
 
+	r.HandleFunc("/s/{slug:[a-zA-Z0-9]{6}}", func(w http.ResponseWriter, r *http.Request) {
+		getShareHead(client, w, r)
+	}).Methods("HEAD")
+
 	r.HandleFunc("/api/share", func(w http.ResponseWriter, r *http.Request) {
 
 	}).Methods("GET")
@@ -119,3 +104,32 @@ func StartWebserver(addr string, client client.Client) error {
 	logrus.Info("Starting webserver")
 	return http.ListenAndServe(addr, r)
 }
+
+func getShareHead(client client.Client, w http.ResponseWriter, r *http.Request) *types.Share {
+	vars := mux.Vars(r)
+
+	share, err := client.GetShare(r.Context(), vars["slug"])
+	if err != nil {
+		logrus.Error(err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return nil
+	}
+
+	if share == nil {
+		http.NotFound(w, r)
+		return nil
+	}
+
+	metadata, err := client.GetObjectMetadata(r.Context(), share.Key)
+	if err != nil {
+		logrus.Error(err.Error())
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return nil
+	}
+
+	w.Header().Set("Content-Type", metadata.ContentType)
+	w.Header().Set("Content-Length", strconv.FormatInt(metadata.Size, 10))
+	w.Header().Set("Content-Disposition", "attachment; filename=\""+metadata.Filename+"\"")
+
+	return share
+}

web/App.svelte

@@ -4,14 +4,15 @@
 	const slug = window.location.pathname.split("/").pop();
 
 	let component = null;
+	let contentType: string;
+	let filename: string;
 
 	onMount(async () => {
 		const regex = /filename="(.*)"/gm;
-		const res = await fetch(`/s/${slug}`);
+		const res = await fetch(`/s/${slug}`,{method:"HEAD"});
 
-		const contentType: string = res.headers.get("Content-Type");
+		contentType = res.headers.get("Content-Type");
 		
-		let filename: string;
 		let m;
 		while ((m = regex.exec(res.headers.get("Content-Disposition"))) !== null) {
 			// This is necessary to avoid infinite loops with zero-width matches
@@ -36,7 +37,7 @@
 			{#await component}
 				Loading data...
 			{:then v } 
-				<svelte:component this={v.default} />
+				<svelte:component this={v.default} slug={slug} contentType={contentType} filename={filename} />
 			{/await}
 		{/if}
 	</div>

web/opener/Default.svelte

@@ -1,10 +1,9 @@
 <script lang="ts">
-    export let contentType: string;
-    export let filename: string;
-    export let slug: string;
-    export let response: Response;
+	export let contentType: string;
+	export let filename: string;
+	export let slug: string;
 </script>
 
 <div>
-    Default opener
+	Default opener
 </div>

web/opener/Text.svelte

@@ -1,11 +1,18 @@
 <script lang="ts">
-    export let contentType: string;
-    export let filename: string;
-    export let slug: string;
-    export let response: Response;
+import { onMount } from "svelte";
+	export let contentType: string;
+	export let filename: string;
+	export let slug: string;
 
+	let content = "";
+
+	onMount(async () => {
+		const res = await fetch(`/s/${slug}`);
+		content = await res.text();
+	});
 </script>
 
 <div>
-    Text opener
+	Text opener
+	<pre><code>{ content }</code></pre>
 </div>