CGI::QueryExtension

     # File lib/cgi_multipart_eof_fix.rb, line 16
 16:       def read_multipart(boundary, content_length)
 17:         params = Hash.new([])
 18:         boundary = "--" + boundary
 19:         quoted_boundary = Regexp.quote(boundary, "n")
 20:         buf = ""
 21:         bufsize = 10 * 1024
 22:         boundary_end=""
 23:   
 24:         # start multipart/form-data
 25:         stdinput.binmode if defined? stdinput.binmode
 26:         boundary_size = boundary.size + EOL.size
 27:         content_length -= boundary_size
 28:         status = stdinput.read(boundary_size)
 29:         if nil == status
 30:           raise EOFError, "no content body"
 31:         elsif boundary + EOL != status
 32:           raise EOFError, "bad content body #{status.inspect} expected, got #{(boundary + EOL).inspect}"
 33:         end
 34:   
 35:         loop do
 36:           head = nil
 37:           if 10240 < content_length
 38:             require "tempfile"
 39:             body = Tempfile.new("CGI")
 40:           else
 41:             begin
 42:               require "stringio"
 43:               body = StringIO.new
 44:             rescue LoadError
 45:               require "tempfile"
 46:               body = Tempfile.new("CGI")
 47:             end
 48:           end
 49:           body.binmode if defined? body.binmode
 50:   
 51:           until head and /#{quoted_boundary}(?:#{EOL}|--)/.match(buf)
 52:   
 53:             if (not head) and /#{EOL}#{EOL}/.match(buf)
 54:               buf = buf.sub(/\A((?:.|\n)*?#{EOL})#{EOL}/) do
 55:                 head = $1.dup
 56:                 ""
 57:               end
 58:               next
 59:             end
 60:   
 61:             if head and ( (EOL + boundary + EOL).size < buf.size )
 62:               body.print buf[0 ... (buf.size - (EOL + boundary + EOL).size)]
 63:               buf[0 ... (buf.size - (EOL + boundary + EOL).size)] = ""
 64:             end
 65:   
 66:             c = if bufsize < content_length
 67:                   stdinput.read(bufsize)
 68:                 else
 69:                   stdinput.read(content_length)
 70:                 end
 71:             if c.nil? || c.empty?
 72:               raise EOFError, "bad content body"
 73:             end
 74:             buf.concat(c)
 75:             content_length -= c.size
 76:           end
 77:   
 78:           buf = buf.sub(/\A((?:.|\n)*?)(?:[\r\n]{1,2})?#{quoted_boundary}([\r\n]{1,2}|--)/) do
 79:             body.print $1
 80:             if "--" == $2
 81:               content_length = 1
 82:             end
 83:            boundary_end = $2.dup
 84:             ""
 85:           end
 86:   
 87:           body.rewind
 88:   
 89:           /Content-Disposition:.* filename="?([^\";]*)"?/i.match(head)
 90:         filename = ($1 or "")
 91:         if /Mac/i.match(env_table['HTTP_USER_AGENT']) and
 92:             /Mozilla/i.match(env_table['HTTP_USER_AGENT']) and
 93:             (not /MSIE/i.match(env_table['HTTP_USER_AGENT']))
 94:           filename = CGI::unescape(filename)
 95:         end
 96:           
 97:           /Content-Type: (.*)/i.match(head)
 98:           content_type = ($1 or "")
 99:   
100:           (class << body; self; end).class_eval do
101:             alias local_path path
102:             define_method(:original_filename) {filename.dup.taint}
103:             define_method(:content_type) {content_type.dup.taint}
104:           end
105:   
106:           /Content-Disposition:.* name="?([^\";]*)"?/i.match(head)
107:           name = $1.dup
108:   
109:           if params.has_key?(name)
110:             params[name].push(body)
111:           else
112:             params[name] = [body]
113:           end
114:           break if buf.size == 0
115:           break if content_length === 1
116:         end
117:         raise EOFError, "bad boundary end of body part" unless boundary_end=~/--/
118:   
119:         params
120:       end