From 319ae4628f4e0058de3e40e4ca7791b17e45e70c Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Tue, 27 Jan 2009 18:54:01 -0600
Subject: Move HTTP libs and middleware into ActionDispatch component

---
 .../lib/action_dispatch/http/status_codes.rb       | 88 ++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100644 actionpack/lib/action_dispatch/http/status_codes.rb

(limited to 'actionpack/lib/action_dispatch/http/status_codes.rb')

diff --git a/actionpack/lib/action_dispatch/http/status_codes.rb b/actionpack/lib/action_dispatch/http/status_codes.rb
new file mode 100644
index 0000000000..cec9d2e3a1
--- /dev/null
+++ b/actionpack/lib/action_dispatch/http/status_codes.rb
@@ -0,0 +1,88 @@
+module ActionDispatch
+  module StatusCodes #:nodoc:
+    # Defines the standard HTTP status codes, by integer, with their
+    # corresponding default message texts.
+    # Source: http://www.iana.org/assignments/http-status-codes
+    STATUS_CODES = {
+      100 => "Continue",
+      101 => "Switching Protocols",
+      102 => "Processing",
+
+      200 => "OK",
+      201 => "Created",
+      202 => "Accepted",
+      203 => "Non-Authoritative Information",
+      204 => "No Content",
+      205 => "Reset Content",
+      206 => "Partial Content",
+      207 => "Multi-Status",
+      226 => "IM Used",
+
+      300 => "Multiple Choices",
+      301 => "Moved Permanently",
+      302 => "Found",
+      303 => "See Other",
+      304 => "Not Modified",
+      305 => "Use Proxy",
+      307 => "Temporary Redirect",
+
+      400 => "Bad Request",
+      401 => "Unauthorized",
+      402 => "Payment Required",
+      403 => "Forbidden",
+      404 => "Not Found",
+      405 => "Method Not Allowed",
+      406 => "Not Acceptable",
+      407 => "Proxy Authentication Required",
+      408 => "Request Timeout",
+      409 => "Conflict",
+      410 => "Gone",
+      411 => "Length Required",
+      412 => "Precondition Failed",
+      413 => "Request Entity Too Large",
+      414 => "Request-URI Too Long",
+      415 => "Unsupported Media Type",
+      416 => "Requested Range Not Satisfiable",
+      417 => "Expectation Failed",
+      422 => "Unprocessable Entity",
+      423 => "Locked",
+      424 => "Failed Dependency",
+      426 => "Upgrade Required",
+
+      500 => "Internal Server Error",
+      501 => "Not Implemented",
+      502 => "Bad Gateway",
+      503 => "Service Unavailable",
+      504 => "Gateway Timeout",
+      505 => "HTTP Version Not Supported",
+      507 => "Insufficient Storage",
+      510 => "Not Extended"
+    }
+
+    # Provides a symbol-to-fixnum lookup for converting a symbol (like
+    # :created or :not_implemented) into its corresponding HTTP status
+    # code (like 200 or 501).
+    SYMBOL_TO_STATUS_CODE = STATUS_CODES.inject({}) do |hash, (code, message)|
+      hash[message.gsub(/ /, "").underscore.to_sym] = code
+      hash
+    end
+
+    # Given a status parameter, determine whether it needs to be converted
+    # to a string. If it is a fixnum, use the STATUS_CODES hash to lookup
+    # the default message. If it is a symbol, use the SYMBOL_TO_STATUS_CODE
+    # hash to convert it.
+    def interpret_status(status)
+      case status
+      when Fixnum then
+        "#{status} #{STATUS_CODES[status]}".strip
+      when Symbol then
+        interpret_status(SYMBOL_TO_STATUS_CODE[status] ||
+          "500 Unknown Status #{status.inspect}")
+      else
+        status.to_s
+      end
+    end
+    private :interpret_status
+
+  end
+end
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