Move more routes to new pattern

src/invidious/routes/notifications.cr

@@ -0,0 +1,78 @@
+module Invidious::Routes::Notifications
+  # /modify_notifications
+  # will "ding" all subscriptions.
+  # /modify_notifications?receive_all_updates=false&receive_no_updates=false
+  # will "unding" all subscriptions.
+  def self.modify(env)
+    locale = env.get("preferences").as(Preferences).locale
+
+    user = env.get? "user"
+    sid = env.get? "sid"
+    referer = get_referer(env, "/")
+
+    redirect = env.params.query["redirect"]?
+    redirect ||= "false"
+    redirect = redirect == "true"
+
+    if !user
+      if redirect
+        return env.redirect referer
+      else
+        return error_json(403, "No such user")
+      end
+    end
+
+    user = user.as(User)
+
+    if !user.password
+      channel_req = {} of String => String
+
+      channel_req["receive_all_updates"] = env.params.query["receive_all_updates"]? || "true"
+      channel_req["receive_no_updates"] = env.params.query["receive_no_updates"]? || ""
+      channel_req["receive_post_updates"] = env.params.query["receive_post_updates"]? || "true"
+
+      channel_req.reject! { |k, v| v != "true" && v != "false" }
+
+      headers = HTTP::Headers.new
+      headers["Cookie"] = env.request.headers["Cookie"]
+
+      html = YT_POOL.client &.get("/subscription_manager?disable_polymer=1", headers)
+
+      cookies = HTTP::Cookies.from_client_headers(headers)
+      html.cookies.each do |cookie|
+        if {"VISITOR_INFO1_LIVE", "YSC", "SIDCC"}.includes? cookie.name
+          if cookies[cookie.name]?
+            cookies[cookie.name] = cookie
+          else
+            cookies << cookie
+          end
+        end
+      end
+      headers = cookies.add_request_headers(headers)
+
+      if match = html.body.match(/'XSRF_TOKEN': "(?<session_token>[^"]+)"/)
+        session_token = match["session_token"]
+      else
+        return env.redirect referer
+      end
+
+      headers["content-type"] = "application/x-www-form-urlencoded"
+      channel_req["session_token"] = session_token
+
+      subs = XML.parse_html(html.body)
+      subs.xpath_nodes(%q(//a[@class="subscription-title yt-uix-sessionlink"]/@href)).each do |channel|
+        channel_id = channel.content.lstrip("/channel/").not_nil!
+        channel_req["channel_id"] = channel_id
+
+        YT_POOL.client &.post("/subscription_ajax?action_update_subscription_preferences=1", headers, form: channel_req)
+      end
+    end
+
+    if redirect
+      env.redirect referer
+    else
+      env.response.content_type = "application/json"
+      "{}"
+    end
+  end
+end