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app.rb
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app.rb
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require 'sinatra'
require 'sinatra/activerecord'
require 'sinatra/flash'
require 'sinatra/r18n'
require "sinatra/config_file"
require 'xml/libxml'
require 'oj'
require 'builder'
require 'will_paginate'
require 'will_paginate/active_record'
enable :sessions
set :erb, :trim => '-'
config_file 'config/config.yml'
R18n::I18n.default = settings.default_locale || "en"
#name, filename, orginal_filename, preset(xml), custom_preset(json)
class Collection < ActiveRecord::Base
validates_presence_of :name
self.per_page = 40
def copy(name)
collection = self.dup
collection.name = name
collection.default = false
collection
end
#parses the xml file for author, description, version etc
def parse_metadata
parser = XML::Parser.string(self.preset)
doc = parser.parse
self.author = doc.root["author"]
self.description = doc.root["description"]
self.shortdescription = doc.root["shortdescription"]
self.version = doc.root["version"]
end
def validate_xml_preset()
return Collection.validate_xml_preset(self.preset)
end
def self.validate_xml_preset(preset)
parser = XML::Parser.string(preset)
document = parser.parse
schema_document = XML::Document.file("lib/tagging-preset.xsd")
schema = XML::Schema.document(schema_document)
begin
return document.validate_schema(schema) #true if validates, otherwise exceptions raised
rescue LibXML::XML::Error => e
error = e.to_s
return error
end
end
def xml_preset_to_json
xml_array = to_preset_array
json_array = []
xml_array.each do | xml_leaf |
json_array << parse_leaf(xml_leaf) #xml_leaf is a Group or an Item
end
json_array.join(",")
preset_json = Oj.dump(json_array)
preset_json
end
private
#converts the uploaded preset to an array of nodes
def to_preset_array()
parser = XML::Parser.string(self.preset)
doc = parser.parse
doc.root.namespaces.default_prefix='osm'
#items = doc.find('//osm:preset')
preset_array = []
doc.root.children.each do | child |
if child.name == "group" || child.name == "item"
preset_array << child
end unless child.empty?
end
preset_array
end
# Parses an XML element of either Item or Group
def parse_leaf(xml_leaf)
if xml_leaf.name == "item" || xml_leaf.name == "group"
leaf = {"name" => xml_leaf["name"], "type" => xml_leaf.name, "icon" => xml_leaf["icon"],
"geo_type" => xml_leaf["type"], "id" => rand(32**8).to_s(32) }
leaf["item"] = parse_item(xml_leaf) if xml_leaf.name == "item"
end
if xml_leaf.name == "group" && xml_leaf.children?
leaf["children"] = []
xml_leaf.children.each do | c |
if c.name == "item" || c.name == "group"
leaf["children"] << parse_child(c)
end
end
end
leaf
end
#parses an item and extracts the tag / form elements from it
def parse_item(item)
elements = []
item.each_element do | ce |
element = {}
element = parse_element(ce)
if ce.name == "optional"
optional_items = []
ce.each_element do | opt |
optional_items << parse_element(opt)
end
element["children"] = optional_items
end
elements << element
end
elements
end
#parses a child of an Item or Group.
#if it's a group, the child has children of its own
def parse_child(child)
if child.name == "item" || child.name == "group"
child_hash = {"name" => child["name"], "type" => child.name, "icon" => child["icon"],
"geo_type" => child["type"], "id" => rand(32**8).to_s(32) }
child_hash["item"] = parse_item(child) if child.name == "item"
end
if child.name == "group" && child.children?
child_hash["children"] = []
child.children.each do | c |
if c.name == "item" || c.name == "group"
child_hash["children"] << parse_child(c)
end
end
end
child_hash
end
def parse_element(element)
values = element["values"] || nil
if element.name == "combo" && element.children.length > 0 && values.nil?
values = []
element.each_element do |list_item |
values << list_item["value"]
end
values = values.join(",")
end
ele = {"name"=> element.name, "key"=> element["key"], "text" => element["text"], "value"=> element["value"],
"values" => values, "default_value"=> element["default"], "link"=> element["href"], "id" => rand(32**8).to_s(32)}
ele.delete_if {|k,v| v == nil} #remove any empty key values, it reduces JSON size
ele
end
end
def localized_erb(template)
return erb :"#{template}.#{r18n.locale.code}" if File.exists? "views/#{template}.#{r18n.locale.code}.erb"
return erb template
end
def find_collection
begin
collection = Collection.find(params[:id])
rescue ActiveRecord::RecordNotFound
halt erb :not_found
end
end
get '/' do
@default_presets = Collection.where(:default => true)
localized_erb :home
end
get '/upload' do
erb :upload
end
#new collection
post '/upload' do
unless params[:name] && params[:file] && (tmpfile = params[:file][:tempfile]) && (orig_name = params[:file][:filename]) && File.extname(orig_name) == ".xml"
redirect '/upload'
end
filename = File.join(Dir.pwd,"tmp", orig_name)
preset = tmpfile.read
File.open(filename, "wb") { |f| f.write(preset) }
FileUtils.chmod(0644, filename)
collection = Collection.new(:name => params[:name].to_s, :original_filename => orig_name, :filename => filename, :preset => preset)
collection.parse_metadata
collection.custom_preset = collection.xml_preset_to_json
collection.save
flash[:info] = "Preset uploaded!"
redirect "/collection/#{collection.id}"
end
get '/collection/new' do
@collection = Collection.new()
erb :collection_new
end
post '/collection/new' do
collection = Collection.new(params[:collection])
if collection.save
flash[:info] = "#{t.flash.created}"
redirect "/collection/#{collection.id}/edit"
else
flash[:error] = collection.errors.full_messages.join("<br />")
@collection = Collection.new()
erb :collection_new
end
end
get '/collections' do
@collections = Collection.paginate(:page => params[:page]).order('created_at desc')
erb :collections
end
get '/collection' do
redirect '/collections'
end
get '/collection/' do
redirect '/collections'
end
get '/collection/:id.xml' do
@collection = find_collection
@custom_preset = Oj.load(@collection.custom_preset)
attachment #<-- comment for inline render
builder :preset
end
get '/collection/:id' do
@collection = find_collection
erb :collection
end
put '/collection/:id' do
@collection = find_collection
if @collection.update_attributes(params[:collection])
flash[:info] = "#{t.flash.updated}"
redirect "/collection/#{@collection.id}"
else
flash[:error] = @collection.errors.full_messages.join("<br />")
@images = Dir.glob("public/icons/presets/*.png").sort_by { |x| x.downcase }
erb :collection_edit
end
end
get '/collection/:id/edit' do
@collection = find_collection
if @collection.default
flash[:error] = "#{t.flash.no_edit_preset}"
redirect "/collection/#{@collection.id}"
else
@images = Dir.glob("public/icons/presets/*.png").sort_by { |x| x.downcase }
erb :collection_edit
end
end
delete '/collection/:id' do
@collection = find_collection
if @collection.default
flash[:error] = "#{t.flash.no_delete_preset}"
redirect "/collection/#{@collection.id}"
else
@collection.destroy
flash[:info] = "#{t.flash.deleted}"
redirect "/collections"
end
end
get '/collection/:id/validate' do
@collection = find_collection
@valid = @collection.validate_xml_preset
erb :collection_validate
end
get '/collection/:id/clone' do
@collection = find_collection
erb :collection_clone
end
post '/collection/:id/clone' do
existing_collection = find_collection
collection = existing_collection.copy("#{t.clone_prefix} #{existing_collection.name}")
collection.save
flash[:info] = "#{t.flash.cloned}"
redirect "/collection/#{collection.id}"
end
get '/collection/:id/export_upload' do
@collection = find_collection
erb :collection_export_upload
end
post '/collection/:id/export_upload' do
require 'mechanize'
@collection = find_collection
if @collection.custom_preset.empty?
flash[:error] = "The preset has no items. Please add some items and tags to it"
redirect "/collection/#{@collection.id}/export_upload"
return true
end
if params[:email].empty? || params[:password].empty?
flash[:error] = "Username and password required"
redirect "/collection/#{@collection.id}/export_upload"
return true
end
#render the preset and save it as temporary file
request = Rack::MockRequest.new(Sinatra::Application)
xml_body = request.get("/collection/#{@collection.id.to_s}.xml").body
xml_file = File.join(Dir.pwd,"tmp", "#{@collection.id.to_s}_#{Process.pid}.xml")
File.open(xml_file, "wb") { |f| f.write(xml_body) }
#get mechanizing
agent = Mechanize.new
#login first
login_page = agent.get(settings.hot_export["login_url"])
login_form = login_page.form
login_form["user[email]"] = params[:email]
login_form["user[password]"] = params[:password]
logged_in_page = agent.submit(login_form)
if logged_in_page.form && logged_in_page.form.fields_with(:type => "email").length > 0
flash[:error] = "Username and password not correct"
redirect "/collection/#{@collection.id}/export_upload"
return true
end
#upload
upload_page = agent.get(settings.hot_export["upload_url"])
upload_form = upload_page.form
upload_form["upload[name]"] = @collection.name
upload_form["upload[uptype]"] = "preset"
upload_form.file_uploads.first.file_name = xml_file
uploaded = agent.submit(upload_form)
#logout probably wise, eh
logged_out = agent.delete(settings.hot_export["logout_url"])
redirect settings.hot_export["after_upload_url"]
end