ruby-dev

青山です。

cookie の生成と header の生成は分離した方が良さそうなので、CGI.pm を参
考に整理し、足りなかったオプションにも対応してみました。

# foo.cookie['name']  <== cookie value of 'name'
# foo.cookie.keys     <== all cookie names
# and foo.cookie has Hash class methods
#
# make raw cookie string
# cookie1 = CGI.cookie({'name'    => 'name',
#                       'value'   => 'value',
#                       'path'    => 'path',   # optional
#                       'domain'  => 'domain', # optional
#                       'expires' => Time.now, # optional
#                       'secure'  => true      # optional
#                      })
#
# print CGI.header("Content-Type: text/html", cookie1, cookie2)
#
# print CGI.header("HTTP/1.0 200 OK", "Content-Type: text/html")
# print CGI.header # == print CGI.header("Content-Type: text/html")

CGI.header は HTTP.header の方が良さそうですけれどね。

以下は汎用ライブラリではなく個別対応の方が良いように思われますが、いか
がでしょう。

> +  def set_title(title)
> +    @title = title
> +  end

> +  def set_body(body)
> +    @body = body
> +  end

> +  def flush
> +    CGI.message(@body, @title, @header)
> +  end

> +  def clear_cookie(name)
> +    set_cookie(name, "xx", "Thu, 1-Jan-1980 00:00:00 GMT")
> +  end


--- cgi-lib.rb.org	Sun Jan 31 10:07:17 1999
+++ cgi-lib.rb	Sun Jan 31 09:51:32 1999
@@ -7,6 +7,24 @@
 # foo['field']   <== value of 'field'
 # foo.keys       <== array of fields
 # and foo has Hash class methods
+#
+# foo.cookie['name']  <== cookie value of 'name'
+# foo.cookie.keys     <== all cookie names
+# and foo.cookie has Hash class methods
+#
+# make raw cookie string
+# cookie1 = CGI.cookie({'name'    => 'name',
+#                       'value'   => 'value',
+#                       'path'    => 'path',   # optional
+#                       'domain'  => 'domain', # optional
+#                       'expires' => Time.now, # optional
+#                       'secure'  => true      # optional
+#                      })
+#
+# print CGI.header("Content-Type: text/html", cookie1, cookie2)
+#
+# print CGI.header("HTTP/1.0 200 OK", "Content-Type: text/html")
+# print CGI.header # == print CGI.header("Content-Type: text/html")
 
 # if running on Windows(IIS or PWS) then change cwd.
 if ENV['SERVER_SOFTWARE'] =~ /^Microsoft-/ then
@@ -17,7 +35,12 @@
 
 class CGI < SimpleDelegator
 
+  CR  = "\015"
+  LF  = "\012"
+  EOL = CR + LF
+
   attr("inputs")
+  attr("cookie")
 
   # original is CGI.pm
   def read_from_cmdline
@@ -40,7 +63,7 @@
 
   # unescape url encoded
   def unescape(str)
-    str.gsub! /\+/, ' '
+    str.gsub!(/\+/, ' ')
     str.gsub!(/%([0-9a-fA-F]{2})/){ [$1.hex].pack("c") }
     str
   end
@@ -70,10 +93,38 @@
     end
 
     super(@inputs)
+
+    if ENV.has_key?('HTTP_COOKIE')
+      @cookie = {}
+      ENV['HTTP_COOKIE'].split("; ").each do |x|
+	key, val = x.split(/=/,2).collect{|x|unescape(x)}
+	if @cookie.include?(key)
+	  @cookie[key] += "\0" + (val or "")
+	else
+	  @cookie[key] = (val or "")
+	end
+      end
+    end
+  end
+
+  def CGI.header(*options)
+    options.push("Content-Type: text/html") if options.empty?
+    if options.find{|item| /^Expires: |^Set-Cookie: /i === item}
+      options.push("Date: " + Time.now.gmtime.strftime("%a, %d %b %Y %X %Z"))
+    end
+    options.join(EOL) + EOL + EOL
+  end
+
+  def CGI.cookie(options)
+    "Set-Cookie: " + options['name'] + '=' + escape(options['value']) +
+    (options['domain']  ? '; domain='  + options['domain'] : '') +
+    (options['path']    ? '; path='    + options['path']   : '') +
+    (options['expires'] ? '; expires=' + options['expires'].strftime("%a, %d %b %Y %X %Z") : '') +
+    (options['secure']  ? '; secure' : '')
   end
 
-  def CGI.message(msg, title = "")
-    print "Content-type: text/html\n\n"
+  def CGI.message(msg, title = "", header = ["Content-Type: text/html"])
+    print CGI.header(*header)
     print "<html><head><title>"
     print title
     print "</title></head><body>\n"


- 
青山 和光 Wakou Aoyama <wakou@fsinet.or.jp>

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