diff options
Diffstat (limited to 'actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb')
-rw-r--r-- | actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb b/actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb new file mode 100644 index 0000000000..5f13404dce --- /dev/null +++ b/actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb @@ -0,0 +1,106 @@ +require 'erb' +require 'rack/request' +require 'rack/utils' + +module Rack + # Rack::ShowStatus catches all empty responses the app it wraps and + # replaces them with a site explaining the error. + # + # Additional details can be put into <tt>rack.showstatus.detail</tt> + # and will be shown as HTML. If such details exist, the error page + # is always rendered, even if the reply was not empty. + + class ShowStatus + def initialize(app) + @app = app + @template = ERB.new(TEMPLATE) + end + + def call(env) + status, headers, body = @app.call(env) + headers = Utils::HeaderHash.new(headers) + empty = headers['Content-Length'].to_i <= 0 + + # client or server error, or explicit message + if (status.to_i >= 400 && empty) || env["rack.showstatus.detail"] + req = Rack::Request.new(env) + message = Rack::Utils::HTTP_STATUS_CODES[status.to_i] || status.to_s + detail = env["rack.showstatus.detail"] || message + body = @template.result(binding) + size = body.respond_to?(:bytesize) ? body.bytesize : body.size + [status, headers.merge("Content-Type" => "text/html", "Content-Length" => size.to_s), [body]] + else + [status, headers, body] + end + end + + def h(obj) # :nodoc: + case obj + when String + Utils.escape_html(obj) + else + Utils.escape_html(obj.inspect) + end + end + + # :stopdoc: + +# adapted from Django <djangoproject.com> +# Copyright (c) 2005, the Lawrence Journal-World +# Used under the modified BSD license: +# http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5 +TEMPLATE = <<'HTML' +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html lang="en"> +<head> + <meta http-equiv="content-type" content="text/html; charset=utf-8" /> + <title><%=h message %> at <%=h req.script_name + req.path_info %></title> + <meta name="robots" content="NONE,NOARCHIVE" /> + <style type="text/css"> + html * { padding:0; margin:0; } + body * { padding:10px 20px; } + body * * { padding:0; } + body { font:small sans-serif; background:#eee; } + body>div { border-bottom:1px solid #ddd; } + h1 { font-weight:normal; margin-bottom:.4em; } + h1 span { font-size:60%; color:#666; font-weight:normal; } + table { border:none; border-collapse: collapse; width:100%; } + td, th { vertical-align:top; padding:2px 3px; } + th { width:12em; text-align:right; color:#666; padding-right:.5em; } + #info { background:#f6f6f6; } + #info ol { margin: 0.5em 4em; } + #info ol li { font-family: monospace; } + #summary { background: #ffc; } + #explanation { background:#eee; border-bottom: 0px none; } + </style> +</head> +<body> + <div id="summary"> + <h1><%=h message %> <span>(<%= status.to_i %>)</span></h1> + <table class="meta"> + <tr> + <th>Request Method:</th> + <td><%=h req.request_method %></td> + </tr> + <tr> + <th>Request URL:</th> + <td><%=h req.url %></td> + </tr> + </table> + </div> + <div id="info"> + <p><%= detail %></p> + </div> + + <div id="explanation"> + <p> + You're seeing this error because you use <code>Rack::ShowStatus</code>. + </p> + </div> +</body> +</html> +HTML + + # :startdoc: + end +end |