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require 'microformats'
require 'redcarpet/render_strip'
require 'webmention'
class BlogsController < ApplicationController
skip_before_action :verify_authenticity_token, only: [:webmention]
def summary
@blogs = Blog.where(published: true).order(published_at: :desc).paginate(page: params[:page], per_page: 10)
if not params[:page]
@main_page = true
end
end
def index
@blogs = Blog.where(published: true).order(published_at: :desc)
respond_to do |format|
format.html
format.atom
end
end
def show
@blog = Blog.find_by_slug(params[:slug])
raise ActiveRecord::RecordNotFound unless @blog
raise ActiveRecord::RecordNotFound unless @blog.published
@prev = @blog.prev
@next = @blog.next
body = Redcarpet::Markdown.new(Redcarpet::Render::StripDown).render(@blog.body)
set_meta_tags(og: {
title: @blog.title,
type: "article",
description: (body.length <= 300 ? body : body[0..299]),
url: blog_url(@blog, host: "www.fourisland.com"),
article: {
published_time: @blog.published_at.iso8601,
modified_time: @blog.updated_at.iso8601
}
})
end
def upvote
@blog = Blog.find_by_slug(params[:slug])
raise ActiveRecord::RecordNotFound unless @blog
raise ActiveRecord::RecordNotFound unless @blog.published
respond_to do |format|
if @blog.upvote! request.remote_ip
format.html do
flash[:notice] = "You have upvoted the blog post \"#{@blog.title}\"."
redirect_to @blog
end
format.js { render "voted" }
format.xml { head :ok }
else
format.html do
flash[:notice] = "You have already voted on the blog post \"#{@blog.title}\"."
redirect_to @blog
end
format.xml { render :xml => { :error => "Someone from your IP address has already voted on this blog post."} }
end
end
end
def downvote
@blog = Blog.find_by_slug(params[:slug])
raise ActiveRecord::RecordNotFound unless @blog
raise ActiveRecord::RecordNotFound unless @blog.published
respond_to do |format|
if @blog.downvote! request.remote_ip
format.html do
flash[:notice] = "You have downvoted the blog post \"#{@blog.title}\"."
redirect_to @blog
end
format.js { render "voted" }
format.xml { head :ok }
else
format.html do
flash[:notice] = "You have already voted on the blog post \"#{@blog.title}\"."
redirect_to @blog
end
format.xml { render :xml => { :error => "Someone from your IP address has already voted on this blog post."} }
end
end
end
def webmention
@blog = Blog.find_by_slug(params[:slug])
raise ActiveRecord::RecordNotFound unless @blog
raise ActiveRecord::RecordNotFound unless @blog.published
permalink = url_for(@blog)
target = params[:target]
unless target == permalink
render json: { error: "Incorrect target for webmention endpoint (#{target} != #{permalink})." }
return
end
source = params[:source]
verification = Webmention.verify_webmention(source, target)
unless verification.verified?
render json: { error: "Webmention could not be verified." }
return
end
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? permalink
@blog.like!(parsed.entry.author.url, parsed.entry.author.name)
end
head :ok
end
end
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