Class: Murlsh::UrlServer

Inherits:
Object
  • Object
show all
Includes:
HeadFromGet
Defined in:
lib/murlsh/url_server.rb

Overview

Build responses for HTTP requests.

Instance Method Summary (collapse)

Methods included from HeadFromGet

#head

Constructor Details

- (UrlServer) initialize(config)

A new instance of UrlServer



11
 
# File 'lib/murlsh/url_server.rb', line 11

def initialize(config); @config = config; end

Instance Method Details

- (Object) get(req)

Respond to a GET request. Return a page of urls based on the query string parameters.



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# File 'lib/murlsh/url_server.rb', line 15

def get(req)
  conditions = Murlsh::SearchConditions.new(req['q']).conditions
  page = [req['p'].to_i, 1].max
  per_page = req['pp'] ? req['pp'].to_i :
    @config.fetch('num_posts_page', 25)

  result_set = Murlsh::UrlResultSet.new(conditions, page, per_page)

  resp = Rack::Response.new

  resp['Content-Type'] = 'text/html; charset=utf-8'
  resp.body = Murlsh::UrlBody.new(@config, req, result_set,
    resp['Content-Type'])

  resp['Cache-Control'] = 'must-revalidate, max-age=0'
  resp['ETag'] = "\"#{resp.body.md5}\""

  resp
end

- (Object) post(req)

Respond to a POST request. Add the new url and return json.



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# File 'lib/murlsh/url_server.rb', line 36

def post(req)
  auth = req['auth']
  if user = auth.empty? ? nil : Murlsh::Auth.new(
    @config.fetch('auth_file')).auth(auth)

    mu = Murlsh::Url.new do |u|
      u.url = req['url']
      u.email = user[:email]
      u.name = user[:name]

      # optional parameters
      unless req['thumbnail'].to_s.empty?
        u.thumbnail_url = req['thumbnail']
      end

      u.time = if req['time']
        Time.at(req['time'].to_f).utc
      else
        Time.now.utc
      end

      unless req['title'].to_s.empty?
        u.title = req['title']
        u.user_supplied_title = true
      end

      u.via = req['via']  unless req['via'].to_s.empty?
    end

    begin
      # validate before add_pre plugins have run and also after (in save!)
      raise ActiveRecord::RecordInvalid.new(mu)  unless mu.valid?
      Murlsh::Plugin.hooks('add_pre') { |p| p.run mu, @config }
      mu.save!
      Murlsh::Plugin.hooks('add_post') { |p| p.run mu, @config }
      response_body, response_code = [mu], 200
    rescue ActiveRecord::RecordInvalid => error
      response_body = {
        'url' => error.record,
        'errors' => error.record.errors,
        }
      response_code = 500
    end
  else
    response_body, response_code = '', 403
  end

  Rack::Response.new(response_body.to_json, response_code, {
    'Content-Type' => 'application/json' })
end