Class: RackRscript

Inherits:
Object
  • Object
show all
Includes:
AppRoutes
Defined in:
lib/rack-rscript.rb

Instance Method Summary collapse

Constructor Details

#initialize(log: nil, pkg_src: '', cache: 5, rsc_host: 'rse', rsc_package_src: nil) ⇒ RackRscript

Returns a new instance of RackRscript.



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# File 'lib/rack-rscript.rb', line 32

def initialize(log: nil, pkg_src: '', cache: 5, 
               rsc_host: 'rse', rsc_package_src: nil)
  
  @params = {}
  @templates = {}
  
  @rrscript = RScript.new log: log, pkg_src: pkg_src, cache: cache
  
  @url_base = pkg_src # web server serving the RSF files
  @url_base += '/' unless @url_base[-1] == '/'
  
  @log = log



  super() # required for app-routes initialize method to exectue
  default_routes(@env, @params)    
  
  @rsc = nil
  @rsc = RSC.new rsc_host, rsc_package_src if rsc_package_src

end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack-rscript.rb', line 55

def call(env)
    
    @env = env
    request = env['REQUEST_URI'][/https?:\/\/[^\/]+(.*)/,1]

    @log.info 'RackRscript/call: ' + env.inspect if @log
    req = Rack::Request.new(env)

    @req_params = req.params
    default_routes(env,@params)
    content, content_type, status_code = run_route(request, env['REQUEST_METHOD'])

    if content.is_a? Redirect then
      
      redirectx = content
      res = Rack::Response.new
      res.redirect(redirectx.to_url)
      res.finish      
      
    else

      e = $!

      if e then
content, status_code = e, 500
@log.debug 'RackRscript/call/error: ' + e if @log
      elsif content.nil? then
content, status_code  = "404: page not found", 404             
      end      

      tilt_proc = lambda do |s, content_type| 
type = content_type[/[^\/]+$/]
s = [s,{}] unless s.is_a? Array
content, options = s
[Tilt[type].new() {|x| content}.render(self, options), 'text/html']
      end
      
      passthru_proc = lambda{|c, ct| [c,ct]}
      
                      
      
      ct_list = {
'text/html' => passthru_proc,
'text/haml' => tilt_proc,
'text/slim' => tilt_proc,
'text/plain' => passthru_proc,
'text/xml' => passthru_proc,
'text/css' => passthru_proc,
'text/markdown' => passthru_proc,
'application/xml' => passthru_proc,
'application/xhtml' => passthru_proc,
'application/json' => passthru_proc,
'image/png' => passthru_proc,
'image/jpeg' => passthru_proc,
'image/svg+xml' => passthru_proc
      }
      
      content_type ||= 'text/html'
      status_code ||= 200                  
      proc = ct_list[content_type]
      proc ||= passthru_proc
      content, content_type = proc.call(content, content_type)      
      
      [status_code, {"Content-Type" => content_type}, [content]]
    end
end

#clear_cache ⇒ Object 



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# File 'lib/rack-rscript.rb', line 122

def clear_cache()
  @rrscript.reset
end

#haml(name, options = {}) ⇒ Object 



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# File 'lib/rack-rscript.rb', line 174

def haml(name,options={})    
  render name, :haml, options
end

#redirect(url) ⇒ Object 



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# File 'lib/rack-rscript.rb', line 165

def redirect(url)
  Redirect.new url
end

#run_job(url, jobs, params = {}, *qargs) ⇒ Object 



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# File 'lib/rack-rscript.rb', line 126

def run_job(url, jobs, params={}, *qargs)

  if @params[:splat] then
    @params.each do  |k,v|
      @params.delete k unless k == :splat or k == :package or k == :job or k == :captures
    end
  end  
  
  if @params[:splat] and @params[:splat].length > 0 then
    h = @params[:splat].first[1..-1].split('&').inject({}) do |r,x| 
      k, v = x.split('=')
      v ? r.merge(k[/\w+$/].to_sym => Rack::Utils.unescape(v)) : r
    end
    @params.merge! h
  end
  
  @params.merge! @req_params
  result, args = @rrscript.read([url, jobs.split(/\s/), \
    qargs].flatten)

  rws = self
  rsc = @rsc if @rsc
  
  begin
    r = eval result
    return r

  rescue Exception => e  
    
    @params = {}
    err_label = e.message.to_s + " :: \n" + e.backtrace.join("\n")      
    raise RackRscriptError, err_label

    @log.debug 'RackRscript/run_job/error: ' + err_label if @log
  end
  
end

#slim(name, options = {}) ⇒ Object 



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# File 'lib/rack-rscript.rb', line 178

def slim(name,options={})
  render name, :slim, options
end

#transform(xsl, xml) ⇒ Object

jr 140616 not yet used and still needs to be tested



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# File 'lib/rack-rscript.rb', line 170

def transform(xsl, xml)
  Rexslt.new(xsl, xml).to_s
end