Merged updates from trunk into stable branch

[feedcatcher.git] / vendor / rails / actionpack / lib / action_controller / vendor / rack-1.0 / rack / showstatus.rb
diff --git a/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb b/vendor/rails/actionpack/lib/action_controller/vendor/rack-1.0/rack/showstatus.rb

new file mode 100644 (file)

index 0000000..28258c7
--- /dev/null
+++ b/vendor/rails/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 = Rack::Utils.bytesize(body)
+        [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