Class: WEBrick::HTTPServlet::ERBHandler
Relationships & Source Files | |
Super Chains via Extension / Inclusion / Inheritance | |
Class Chain:
self,
AbstractServlet
|
|
Instance Chain:
self,
AbstractServlet
|
|
Inherits: |
WEBrick::HTTPServlet::AbstractServlet
|
Defined in: | lib/webrick/httpservlet/erbhandler.rb |
Overview
ERBHandler
evaluates an ERB file and returns the result. This handler is automatically used if there are .rhtml
files in a directory served by the FileHandler
.
ERBHandler
supports GET and POST methods.
The ERB file is evaluated with the local variables servlet_request
and servlet_response
which are a ::WEBrick::HTTPRequest
and ::WEBrick::HTTPResponse
respectively.
Example .rhtml
file:
Request to <%= servlet_request.request_uri %>
Query params <%= servlet_request.query.inspect %>
Class Method Summary
-
.new(server, name) ⇒ ERBHandler
constructor
Creates a new
ERBHandler
onserver
that will evaluate and serve the ERB filename
AbstractServlet
- Inherited
.get_instance | Factory for servlet instances that will handle a request from |
.new | Initializes a new servlet for |
Instance Method Summary
-
#do_GET(req, res)
(also: #do_POST)
Handles GET requests.
-
#do_POST(req, res)
Handles POST requests.
-
#evaluate(erb, servlet_request, servlet_response)
private
Evaluates
erb
providingservlet_request
andservlet_response
as local variables.
AbstractServlet
- Inherited
#do_GET | Raises a NotFound exception. |
#do_HEAD | Dispatches to do_GET. |
#do_OPTIONS | Returns the allowed HTTP request methods. |
#service | Dispatches to a |
#redirect_to_directory_uri | Redirects to a path ending in /. |
Constructor Details
.new(server, name) ⇒ ERBHandler
Creates a new ERBHandler
on server
that will evaluate and serve the ERB file name
# File 'lib/webrick/httpservlet/erbhandler.rb', line 42
def initialize(server, name) super(server, name) @script_filename = name end
Instance Method Details
#do_GET(req, res) Also known as: #do_POST
Handles GET requests
# File 'lib/webrick/httpservlet/erbhandler.rb', line 50
def do_GET(req, res) unless defined?(ERB) @logger.warn "#{self.class}: ERB not defined." raise HTTPStatus::Forbidden, "ERBHandler cannot work." end begin data = File.open(@script_filename, &:read) res.body = evaluate(ERB.new(data), req, res) res['content-type'] ||= HTTPUtils::mime_type(@script_filename, @config[:MimeTypes]) rescue StandardError raise rescue Exception => ex @logger.error(ex) raise HTTPStatus::InternalServerError, ex. end end
#do_POST(req, res)
Handles POST requests
# File 'lib/webrick/httpservlet/erbhandler.rb', line 71
alias do_POST do_GET
#evaluate(erb, servlet_request, servlet_response) (private)
Evaluates erb
providing servlet_request
and servlet_response
as local variables.
# File 'lib/webrick/httpservlet/erbhandler.rb', line 79
def evaluate(erb, servlet_request, servlet_response) Module.new.module_eval{ servlet_request. servlet_request.query erb.result(binding) } end