Support RSS feeds for custom searches

Fixes #45

src/routes/rss.nim

@@ -19,6 +19,17 @@ template respRss*(rss: typed) =
 
 proc createRssRouter*(cfg: Config) =
   router rss:
+    get "/search/rss":
+      if @"text".len > 200:
+        resp Http400, showError("Search input too long.", cfg.title)
+
+      let query = initQuery(params(request))
+      if query.kind != custom:
+        resp Http400, showError("Only Tweet searches are allowed for RSS feeds.", cfg.title)
+
+      let tweets = await getSearch[Tweet](query, "", getAgent())
+      respRss(renderSearchRss(tweets.content, query.text, genQueryUrl(query)))
+
     get "/@name/rss":
       cond '.' notin @"name"
       respRss(await showRss(@"name", Query()))

src/routes/search.nim

@@ -10,7 +10,7 @@ export search
 
 proc createSearchRouter*(cfg: Config) =
   router search:
-    get "/search":
+    get "/search/?":
       if @"text".len > 200:
         resp Http400, showError("Search input too long.", cfg.title)
 
@@ -25,7 +25,9 @@ proc createSearchRouter*(cfg: Config) =
         resp renderMain(renderUserSearch(users, prefs), request, cfg.title)
       of custom:
         let tweets = await getSearch[Tweet](query, @"after", getAgent())
-        resp renderMain(renderTweetSearch(tweets, prefs, getPath()), request, cfg.title)
+        let rss = "/search/rss?" & genQueryUrl(query)
+        resp renderMain(renderTweetSearch(tweets, prefs, getPath()), request,
+                        cfg.title, rss=rss)
       else:
         resp Http404, showError("Invalid search.", cfg.title)