better handling of edge cases causing panics

Author: ranfdev

src/gemini/client.rs

@@ -159,7 +159,7 @@ impl Client {
             .ok_or(Error::InvalidHost)?;
         let tcp_s = TcpStream::connect(addr).await?;
         let mut tls_s = async_native_tls::TlsConnector::new()
-            .danger_accept_invalid_certs(true)
+            .danger_accept_invalid_certs(true) // FIXME: handle certs
             .connect(host, tcp_s)
             .await?;
 
@@ -205,15 +205,16 @@ impl Client {
             };
         };
 
-        let status: u8 = std::str::from_utf8(&buffer[0..2])?
+        let status: u8 = std::str::from_utf8(buffer.get(0..2).unwrap_or(&[]))?
             .parse()
             .map_err(|_| Error::InvalidProtocolData(InvalidStatus.into()))?;
 
         let status = Status::try_from(status)
             .map_err(|_| Error::InvalidProtocolData(InvalidStatus.into()))?;
 
+        let meta_buffer = &buffer.get(3..meta_end).unwrap_or(&[]);
         // Split the part of the buffer containing the meta
-        let meta = String::from_utf8_lossy(&buffer[3..meta_end]).to_string();
+        let meta = String::from_utf8_lossy(meta_buffer).to_string();
 
         buffer.truncate(n_read);
         buffer.shrink_to_fit();

src/window.rs

@@ -192,6 +192,7 @@ impl Window {
                 }),
             }
             tab_view = (imp.tab_view.clone()) {
+                set_vexpand: true,
                 connect_selected_page_notify:
                     clone!(@weak this => move |tab_view| this.page_switched(tab_view)),
             }
@@ -381,6 +382,9 @@ impl Window {
         let imp = self.imp();
         imp.tab_view
             .close_page(&imp.tab_view.page(&self.current_tab()));
+        if imp.tab_view.n_pages() == 0 {
+            std::process::exit(0); // TODO: maybe there's a better way for gtk apps...
+        }
     }
     fn focus_url_bar(&self) {
         let imp = self.imp();
@@ -474,9 +478,9 @@ impl Window {
         let hue = hash % 360;
         let stylesheet = format!(
             "
-            @define-color view_bg_color hsl({hue}, 100%, 98%);
+            @define-color view_bg_color hsl({hue}, 100%, 99%);
             @define-color view_fg_color hsl({hue}, 100%, 12%);
-            @define-color window_bg_color hsl({hue}, 100%, 98%);
+            @define-color window_bg_color hsl({hue}, 100%, 99%);
             @define-color window_fg_color hsl({hue}, 100%, 12%);
             @define-color headerbar_bg_color hsl({hue}, 100%, 96%);
             @define-color headerbar_fg_color hsl({hue}, 100%, 12%);