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application.rb
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application.rb
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# -*- coding: utf-8 -*-
require 'rubygems'
require 'sinatra/base'
require 'yaml'
require 'json'
require 'erb'
require 'dm-core'
require 'dm-migrations'
require 'dm-aggregates'
require 'dm-pager'
require 'models/kaomoji'
class Application < Sinatra::Base
configure do
set :config_dir, File.join(settings.root, 'config')
set :db, 'sqlite3://' + File.join(settings.root, 'db', "#{settings.environment.to_s}.sqlite3")
set :basic_authentication, YAML.load_file(File.join(settings.config_dir, 'basic_authentication.yml'))
DataMapper::Model.raise_on_save_failure = true
DataMapper.setup :default, settings.db
DataMapper.finalize
DataMapper.auto_upgrade!
end
helpers do
include Rack::Utils
alias_method :h, :escape_html
def kaomoji_format_for_json(record)
{
id: record.id,
text: record.text.force_encoding("utf-8")
}
end
def kaomoji_format_for_json_include_created_at(record)
{
id: record.id,
text: record.text.force_encoding("utf-8"),
created_at: record.created_at.to_time.to_i
}
end
def respond_to_json(hash)
if params[:callback].nil? || !params[:callback].is_a?(String)
content_type :json
hash.to_json
else
content_type :js
callback = params[:callback].gsub(/\\/, '\\\\\\').gsub(/"/, '\\"')
'this["%s"](%s);' % [callback, hash.to_json]
end
end
def allow_origin!(*args)
args << '*' if args.length == 0
response.header['Access-Control-Allow-Origin'] = args.join(', ')
end
def is_html?()
content_type = response.header['Content-Type']
content_type.nil? || /^text\/html(?:;.+)?$/ =~ content_type
end
def is_true?(value)
if value.is_a? String
%w|1 true TRUE True T t yes YES Yes Y y|.include? value
elsif value.is_a? Integer
value == 1
elsif value.is_a? TrueClass
true
else
false
end
end
def protected!
unless authorized?
response['WWW-Authenticate'] = %(Basic realm="Restricted Area")
throw(:halt, [401, "Not authorized\n"])
end
end
def authorized?
@auth ||= Rack::Auth::Basic::Request.new(request.env)
@auth.provided? && @auth.basic? && @auth.credentials && settings.basic_authentication['users'].include?(@auth.credentials)
rescue
false
end
end
post %r{^/create(?:\.json)?$} do
protected!
allow_origin!
halt 400, respond_to_json({error: 'bad request'}) if params[:text].nil?
begin
record = Kaomoji.first_or_create({text: params[:text]}, {created_at: Time.now})
respond_to_json({error: nil, result: kaomoji_format_for_json(record)})
rescue DataMapper::SaveFailureError => err
halt 500, respond_to_json({error: 'internal server error'})
end
end
delete %r{^/([0-9]+?)(?:\.json)?$} do
protected!
allow_origin!
record = Kaomoji.get(params[:captures].first)
halt 404, respond_to_json({error: 'not found'}) if record.nil?
halt 500, respond_to_json({error: 'internal server error'}) unless record.destroy
respond_to_json({error: nil, result: kaomoji_format_for_json(record)})
end
get %r{^/benchmark(?:\.html)?$} do
erb :benchmark, :layout => false, :locals => {
records_json: Kaomoji.all(order: :text.asc).map {|record|
kaomoji_format_for_json record
}.to_json
}
end
get %r{^(?:/|/(pagination|kaomoji)(?:\.([^/]+))?)$} do |type, format|
allow_origin!
query = {order: :id.desc}
options = {filter: ''}
if params[:filter].is_a?(String) && !(/^([_%]+)?$/ =~ params[:filter])
# DataMapperでSQLiteのLIKEのエスケープどうやるの..
options[:filter] = params[:filter]
query[:text.like] = "%#{params[:filter]}%"
end
if params[:since].is_a?(String) && /^[0-9]+$/ =~ params[:since]
options[:since] = query[:created_at.gt] = Time.at(params[:since].to_i)
end
is_pagination = type.nil? || type == 'pagination'
pagination_params = {
page: params[:page],
per_page: params[:per_page] || 200
}
records = Kaomoji.all(query)
case format
when 'html', nil
locals = {
options: options,
modified: Kaomoji.max(:created_at).to_time
}
if is_pagination
locals[:records] = records.page(pagination_params)
erb :pagination, :layout => false, :locals => locals
else
locals[:records] = records
erb :index, :layout => false, :locals => locals
end
when 'json'
result = {modified: Kaomoji.max(:created_at).to_time.to_i}
if is_pagination
records = records.page(pagination_params)
result.merge!({
current: records.pager.current_page,
total: records.pager.total_pages
})
end
format_fn = is_true?(params[:include_created_at]) ?
Proc.new { |record| kaomoji_format_for_json_include_created_at record } :
Proc.new { |record| kaomoji_format_for_json record }
result[:records] = records.map(&format_fn)
respond_to_json(result)
when 'txt', 'text'
content_type :text
records = records.page(pagination_params) if is_pagination
records.map {|record| record.text.force_encoding("utf-8") }.join("\n")
else
raise Sinatra::NotFound
end
end
get %r{^/([^/\.]+)(?:\.([^/]+))?$} do |id, format|
allow_origin!
record = case id
when 'random'
Kaomoji.first(offset: rand(Kaomoji.count))
else
Kaomoji.get(id)
end
case format
when 'html', nil
raise Sinatra::NotFound if record.nil?
erb :single, :layout => false, :locals => {record: record}
when 'json'
halt 404, respond_to_json({error: 'not found'}) if record.nil?
format_method = is_true?(params[:include_created_at]) ?
:kaomoji_format_for_json_include_created_at :
:kaomoji_format_for_json
respond_to_json({record: send(format_method, record)})
when 'txt', 'text'
content_type :text
halt 404, 'not found' if record.nil?
record.text.force_encoding("utf-8")
else
raise Sinatra::NotFound
end
end
# error
not_found do
return response.body.first unless is_html?
erb :"404", :locals => {title: 'Not found'}
end
error do
return response.body.first unless is_html?
erb :"500", :locals => {title: 'Internal server error'}
end
end