opengraph tags, favicon

src/main.rs

@@ -24,6 +24,7 @@ struct State {
     garden_dir: PathBuf,
     index_file: Option<String>,
     title: Option<String>,
+    server_name: String,
     tera: Tera,
 }
 
@@ -84,6 +85,13 @@ fn main() -> anyhow::Result<()> {
                 .short("t")
                 .long("title")
                 .help("Title of this digital garden."),
+        )
+        .arg(
+            Arg::with_name("SERVER_NAME")
+                .takes_value(true)
+                .short("u")
+                .long("garden-url")
+                .help("Hostname of the server of this digital garden (for metadata)."),
         );
 
     let matches = app.get_matches();
@@ -115,6 +123,11 @@ fn main() -> anyhow::Result<()> {
         garden_dir: directory.to_path_buf(),
         index_file: matches.value_of("INDEX_FILE").map(|s| s.to_string()),
         title: matches.value_of("TITLE").map(|s| s.to_string()),
+        server_name: matches
+            .value_of("SERVER_NAME")
+            .map_or(matches.value_of("BIND").unwrap().to_string(), |s| {
+                s.to_string()
+            }),
         tera,
     };
 
@@ -167,9 +180,7 @@ async fn render(
     let full_path = data.garden_dir.join(path.as_str());
 
     // Redirect to ".md" version if requested path matches a .md file without the extension
-    if !full_path.exists()
-        && Path::new(&format!("{}.md", full_path.to_str().unwrap())).exists()
-    {
+    if !full_path.exists() && Path::new(&format!("{}.md", full_path.to_str().unwrap())).exists() {
         return Ok(HttpResponse::Found()
             .header(http::header::LOCATION, format!("{}.md", path.to_string()))
             .finish());
@@ -241,6 +252,8 @@ async fn render(
             None => None,
         },
     );
+    context.insert("server_name", &data.server_name);
+    context.insert("path", &path.to_string());
 
     Ok(HttpResponse::Ok().body(
         data.tera

templates/main.html

@@ -9,6 +9,12 @@
         href="https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,400;0,700;1,400;1,700&family=Montserrat&display=swap"
         rel="stylesheet">
     <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta property="og:site_name" content="{{garden_title}}" />
+    <meta property="og:title" content="{{page_title}}" />
+    <meta property="og:type" content="article" />
+    <meta property="og:url" content="https://{{server_name}}/{{path}}" />
+    <meta property="og:image" content="/static/favicon.png" />
+    <link rel="shortcut icon" href="/static/favicon.png" type="image/x-icon">
     <link href="/static/main.css" rel="stylesheet">
 </head>