Force download for .url/.txt/.png/.qr.txt chips

Browser often opens these files instead of downloading; use blob
downloads with embedded text fallbacks and canvas for PNG on file://.

roles/hysteria2/templates/export/global-index.html.j2

@@ -734,12 +734,12 @@
 {% endif %}
 
           <nav class="files" aria-label="Файлы">
-            <a href="{{ server.dir | e }}/{{ user.name | e }}.url" download>.url</a>
+            <a class="file-download" href="{{ server.dir | e }}/{{ user.name | e }}.url" download="{{ server.name | e }}-{{ user.name | e }}.url" data-filename="{{ server.name | e }}-{{ user.name | e }}.url" data-text="{{ (user.url ~ '\n') | e }}">.url</a>
-            <a href="{{ server.dir | e }}/{{ user.name | e }}.txt" download>.txt</a>
+            <a class="file-download" href="{{ server.dir | e }}/{{ user.name | e }}.txt" download="{{ server.name | e }}-{{ user.name | e }}.txt" data-filename="{{ server.name | e }}-{{ user.name | e }}.txt" data-text="{{ ('Server: ' ~ server.name ~ '\nDomain: ' ~ server.domain ~ ':' ~ server.port ~ '\nUser: ' ~ user.name ~ '\nPassword: ' ~ user.password ~ '\n\nURL:\n' ~ user.url ~ '\n') | e }}">.txt</a>
 {% if user.has_png | default(false) %}
-            <a href="{{ server.dir | e }}/{{ user.name | e }}.png" download>.png</a>
+            <a class="file-download" href="{{ server.dir | e }}/{{ user.name | e }}.png" download="{{ server.name | e }}-{{ user.name | e }}.png" data-filename="{{ server.name | e }}-{{ user.name | e }}.png">.png</a>
 {% endif %}
-            <a href="{{ server.dir | e }}/{{ user.name | e }}.qr.txt" download>.qr.txt</a>
+            <a class="file-download" href="{{ server.dir | e }}/{{ user.name | e }}.qr.txt" download="{{ server.name | e }}-{{ user.name | e }}.qr.txt" data-filename="{{ server.name | e }}-{{ user.name | e }}.qr.txt" data-text="{{ ('URL: ' ~ user.url ~ '\n') | e }}">.qr.txt</a>
           </nav>
         </article>
 {% endfor %}
@@ -936,6 +936,71 @@
         if (e.key === 'Escape' && box.classList.contains('open')) closeLightbox();
       });
     })();
+
+    (function () {
+      function triggerFileDownload(blob, filename) {
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        a.rel = 'noopener';
+        document.body.appendChild(a);
+        a.click();
+        a.remove();
+        setTimeout(function () { URL.revokeObjectURL(url); }, 1500);
+      }
+
+      function pngFromCard(link, filename) {
+        var card = link.closest('.user-card');
+        var qrImg = card && card.querySelector('img[data-lightbox-src], .qr-block img');
+        if (!qrImg) return false;
+        try {
+          if (!qrImg.complete || !qrImg.naturalWidth) return false;
+          var canvas = document.createElement('canvas');
+          canvas.width = qrImg.naturalWidth;
+          canvas.height = qrImg.naturalHeight;
+          canvas.getContext('2d').drawImage(qrImg, 0, 0);
+          canvas.toBlob(function (blob) {
+            if (blob) triggerFileDownload(blob, filename);
+          }, 'image/png');
+          return true;
+        } catch (err) {
+          return false;
+        }
+      }
+
+      document.querySelectorAll('a.file-download').forEach(function (link) {
+        link.addEventListener('click', function (e) {
+          e.preventDefault();
+          e.stopPropagation();
+          var filename = link.getAttribute('data-filename') || link.getAttribute('download') || 'download';
+          var href = link.getAttribute('href');
+          var fallbackText = link.getAttribute('data-text');
+          var isPng = /\.png$/i.test(filename);
+
+          function fallback() {
+            if (fallbackText !== null) {
+              triggerFileDownload(new Blob([fallbackText], { type: 'text/plain;charset=utf-8' }), filename);
+              return;
+            }
+            if (isPng) pngFromCard(link, filename);
+          }
+
+          if (!href) {
+            fallback();
+            return;
+          }
+
+          fetch(href)
+            .then(function (res) {
+              if (!res.ok) throw new Error('fetch failed');
+              return res.blob();
+            })
+            .then(function (blob) { triggerFileDownload(blob, filename); })
+            .catch(fallback);
+        });
+      });
+    })();
   </script>
 </body>
 </html>

roles/hysteria2/templates/export/index.html.j2

@@ -440,12 +440,12 @@
 {% endif %}
 
         <nav class="files" aria-label="Файлы">
-          <a href="{{ user.name | e }}.url" download>.url</a>
+          <a class="file-download" href="{{ user.name | e }}.url" download="{{ hysteria2_output_name | e }}-{{ user.name | e }}.url" data-filename="{{ hysteria2_output_name | e }}-{{ user.name | e }}.url" data-text="{{ (user.url ~ '\n') | e }}">.url</a>
-          <a href="{{ user.name | e }}.txt" download>.txt</a>
+          <a class="file-download" href="{{ user.name | e }}.txt" download="{{ hysteria2_output_name | e }}-{{ user.name | e }}.txt" data-filename="{{ hysteria2_output_name | e }}-{{ user.name | e }}.txt" data-text="{{ ('Server: ' ~ hysteria2_output_name ~ '\nDomain: ' ~ hysteria2_domain ~ ':' ~ hysteria2_listen_port ~ '\nUser: ' ~ user.name ~ '\nPassword: ' ~ user.password ~ '\n\nURL:\n' ~ user.url ~ '\n') | e }}">.txt</a>
 {% if user.has_png | default(false) %}
-          <a href="{{ user.name | e }}.png" download>.png</a>
+          <a class="file-download" href="{{ user.name | e }}.png" download="{{ hysteria2_output_name | e }}-{{ user.name | e }}.png" data-filename="{{ hysteria2_output_name | e }}-{{ user.name | e }}.png">.png</a>
 {% endif %}
-          <a href="{{ user.name | e }}.qr.txt" download>.qr.txt</a>
+          <a class="file-download" href="{{ user.name | e }}.qr.txt" download="{{ hysteria2_output_name | e }}-{{ user.name | e }}.qr.txt" data-filename="{{ hysteria2_output_name | e }}-{{ user.name | e }}.qr.txt" data-text="{{ ('URL: ' ~ user.url ~ '\n') | e }}">.qr.txt</a>
         </nav>
       </article>
 {% endfor %}
@@ -613,6 +613,71 @@
         if (e.key === 'Escape' && box.classList.contains('open')) closeLightbox();
       });
     })();
+
+    (function () {
+      function triggerFileDownload(blob, filename) {
+        var url = URL.createObjectURL(blob);
+        var a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        a.rel = 'noopener';
+        document.body.appendChild(a);
+        a.click();
+        a.remove();
+        setTimeout(function () { URL.revokeObjectURL(url); }, 1500);
+      }
+
+      function pngFromCard(link, filename) {
+        var card = link.closest('.user-card');
+        var qrImg = card && card.querySelector('img[data-lightbox-src], .qr-block img');
+        if (!qrImg) return false;
+        try {
+          if (!qrImg.complete || !qrImg.naturalWidth) return false;
+          var canvas = document.createElement('canvas');
+          canvas.width = qrImg.naturalWidth;
+          canvas.height = qrImg.naturalHeight;
+          canvas.getContext('2d').drawImage(qrImg, 0, 0);
+          canvas.toBlob(function (blob) {
+            if (blob) triggerFileDownload(blob, filename);
+          }, 'image/png');
+          return true;
+        } catch (err) {
+          return false;
+        }
+      }
+
+      document.querySelectorAll('a.file-download').forEach(function (link) {
+        link.addEventListener('click', function (e) {
+          e.preventDefault();
+          e.stopPropagation();
+          var filename = link.getAttribute('data-filename') || link.getAttribute('download') || 'download';
+          var href = link.getAttribute('href');
+          var fallbackText = link.getAttribute('data-text');
+          var isPng = /\.png$/i.test(filename);
+
+          function fallback() {
+            if (fallbackText !== null) {
+              triggerFileDownload(new Blob([fallbackText], { type: 'text/plain;charset=utf-8' }), filename);
+              return;
+            }
+            if (isPng) pngFromCard(link, filename);
+          }
+
+          if (!href) {
+            fallback();
+            return;
+          }
+
+          fetch(href)
+            .then(function (res) {
+              if (!res.ok) throw new Error('fetch failed');
+              return res.blob();
+            })
+            .then(function (blob) { triggerFileDownload(blob, filename); })
+            .catch(fallback);
+        });
+      });
+    })();
   </script>
 </body>
 </html>