Class: BitClust::App

Inherits:
Object show all
Defined in:
lib/bitclust/app.rb

Overview

Main class of BitClust server application. Actual actions are implemneted by RequestHandler.

Supports Rack and WEBrick.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ App

Returns a new instance of App.



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# File 'lib/bitclust/app.rb', line 13

def initialize(options)
  @options = options
  dbpath = options[:dbpath]
  baseurl = options[:baseurl] || ''
  datadir = options[:datadir] || File.expand_path('../../data/bitclust', File.dirname(__FILE__))
  encoding = options[:encoding] || 'utf-8'
  viewpath = options[:viewpath]
  capi = options[:capi]
  if options[:rack]
    request_handler_class = BitClust::RackRequestHandler
  else
    request_handler_class = BitClust::RequestHandler
  end
  @interfaces = {}
  case dbpath
  when String
    dbpath = File.expand_path(dbpath)
    db = BitClust::MethodDatabase.new(dbpath)
    if capi
      db = [db, BitClust::FunctionDatabase.new(dbpath)]
    end
    manager = BitClust::ScreenManager.new(
      :base_url => baseurl,
      :cgi_url => File.join(baseurl, viewpath),
      :datadir => datadir,
      :templatedir => options[:templatedir],
      :theme => options[:theme],
      :encoding => encoding
      )
    handler = request_handler_class.new(db, manager)
    @interfaces[viewpath] = BitClust::Interface.new { handler }
  when Array
    dbpaths = dbpath
    @versions = []
    dbpaths.each do |dbpath|
      next unless /db-([\d_\.]+)/ =~ dbpath
      dbpath = File.expand_path(dbpath)
      version = $1.tr("_", ".")
      @versions << version
      if viewpath
        version_viewpath = File.join(version, viewpath)
      else
        version_viewpath = version
      end
      db = BitClust::MethodDatabase.new(dbpath)
      if capi
        db = [db, BitClust::FunctionDatabase.new(dbpath)]
      end
      manager = BitClust::ScreenManager.new(
        :base_url => baseurl,
        :cgi_url => File.join(baseurl, version_viewpath),
        :datadir => datadir,
        :templatedir => options[:templatedir],
        :theme => options[:theme],
        :encoding => encoding
        )
      handler = request_handler_class.new(db, manager)
      @interfaces[version_viewpath] = BitClust::Interface.new { handler }
      $bitclust_context_cache = nil # clear cache
    end
  end
end

Instance Attribute Details

#interfaces ⇒ Object (readonly)

Returns the value of attribute interfaces.



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# File 'lib/bitclust/app.rb', line 76

def interfaces
  @interfaces
end

#versions ⇒ Object (readonly)

Returns the value of attribute versions.



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# File 'lib/bitclust/app.rb', line 76

def versions
  @versions
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/bitclust/app.rb', line 126

def call(env)
  [
    200,
    {'Content-Type' => 'text/html; charset=utf-8'},
    [index(Rack::Request.new(env))]
  ]
end

#get_instance(server) ⇒ Object 



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# File 'lib/bitclust/app.rb', line 114

def get_instance(server)
  self
end

#index(req) ⇒ Object 



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# File 'lib/bitclust/app.rb', line 78

def index(req)
  case
  when @interfaces.size == 1 && viewpath = @options[:viewpath]
    # Redirect from '/' to "#{viewpath}/"
    @index = "<html><head><meta http-equiv='Refresh' content='0;URL=#{viewpath}'></head></html>"
  when 1 < @interfaces.size
    request_path = case
                   when req.respond_to?(:path_info)
                     req.path_info
                   when req.respond_to?(:path)
                     req.path_info
                   end
    if @versions.any?{|version| %r|\A/?#{version}/?\z| =~ request_path }
      viewpath = File.join(request_path, @options[:viewpath])
      @index = "<html><head><meta http-equiv='Refresh' content='0;URL=#{viewpath}'></head></html>"
    else
      links = "<ul>"
      @interfaces.keys.sort.each do |v|
        if @options[:viewpath]
          version = v.sub(@options[:viewpath], '')
        else
          version = v
        end
        url = v
        links << %Q(<li><a href="#{url}/">#{version}</a></li>)
      end
      links << "</ul>"
      if File.exist?("readme.html")
        @index = File.read("readme.html").sub(%r!\./bitclust!, '').sub(/<!--links-->/) { links }
      else
        @index = "<html><head><title>bitclust</title></head><body>#{links}</body></html>"
      end
    end
  end
end

#service(req, res) ⇒ Object 



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# File 'lib/bitclust/app.rb', line 118

def service(req, res)
  unless  %r|/#{File.basename(@options[:baseurl])}/?\z| =~ req.path
    raise WEBrick::HTTPStatus::NotFound
  end
  res.body = index(req)
  res['Content-Type'] = 'text/html; charset=utf-8'
end