1 files changed, 36 insertions, 0 deletions

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+require 'microformats'
+require 'webmention'
+
+class WebmentionsController < ApplicationController
+  skip_before_action :verify_authenticity_token
+
+  def create
+    source = params[:source]
+    target = params[:target]
+
+    verification = Webmention.verify_webmention(source, target)
+    unless verification.verified?
+      render json: { error: "Webmention could not be verified." }
+      return
+    end
+
+    target_parts = URI.parse(target).path.split("/").drop(1)
+
+    if target_parts[0] == "blog"
+      blog = Blog.find_by_slug(target_parts[1])
+
+      raise ActiveRecord::RecordNotFound unless blog
+      raise ActiveRecord::RecordNotFound unless blog.published
+
+      response = Webmention::Request.get(source)
+      parsed = Microformats.parse(response.body.to_s)
+
+      if parsed.entry.properties.to_hash.include?("like-of") and parsed.entry.like_of(:all).map(&:to_s).include? target
+        blog.like!(parsed.entry.author.url, parsed.entry.author.name)
+      end
+    end
+
+    head :ok
+  end
+  
+end