Set suggested filename for blob download

2 files changed, 19 insertions, 1 deletions

diff --git a/lib/render.js b/lib/render.js
index 16bd7bc..fa4359c 100644
--- a/lib/render.js
+++ b/lib/render.js
@@ -24,13 +24,29 @@ MdRenderer.prototype.urltransform = function (href) {
 }
 
 MdRenderer.prototype.image = function (href, title, text) {
+  href = this.render.imageUrl(href)
+  var name = title || text
+  if (name) href += '?name=' + encodeURIComponent(name)
   return h('img', {
-    src: this.render.imageUrl(href),
+    src: href,
     alt: text,
     title: title || undefined
   }).outerHTML
 }
 
+MdRenderer.prototype.link = function(href, title, text) {
+  href = this.urltransform(href)
+  var name = href && /^\/(&|%26)/.test(href) && (title || text)
+  if (name) href += '?name=' + encodeURIComponent(name)
+  return '<a'
+    + (href !== false
+      ? ' href="' + href + '"'
+      : ' class="bad"')
+    + (title ? ' title="' + title + '"' : '')
+    + '>' + text + '</a>'
+};
+
+
 function lexerRenderEmoji(emoji) {
   var el = this.renderer.render.emoji(emoji)
   return el && el.outerHTML || el
diff --git a/lib/serve.js b/lib/serve.js
index d739659..5386cbc 100644
--- a/lib/serve.js
+++ b/lib/serve.js
@@ -486,6 +486,8 @@ Serve.prototype.blob = function (id) {
       else return self.respond(500, err.message || err)
     }
     if (!has) return self.respond(404, 'Not found')
+    if (self.query.name) self.res.setHeader('Content-Disposition',
+      'inline; filename='+encodeURIComponent(self.query.name))
     pull(
       blobs.get(id),
       pull.map(Buffer),