Class: CryptedDownload

Inherits:
Object
  • Object
show all
Includes:
Mongrel::HttpHandlerPlugin
Defined in:
lib/mongrel_crypted_download/init.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.generate(file_name, path, uri_prefix, request) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/mongrel_crypted_download/init.rb', line 27

def self.generate(file_name, path, uri_prefix, request)
  secret_string  = request.cookies.keys.first
  
  
  key=EzCrypto::Key.with_password secret_string, secret_string
  path=key.encrypt path
     
   timestamp = 1.minute.from_now.to_i.to_s
   path = CGI::escape(path)
   
   return "#{uri_prefix}/?path=#{path}&file-name=#{file_name}&timestamp=#{timestamp}"
    
end

Instance Method Details

#process(request, response) ⇒ Object 



8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
 
# File 'lib/mongrel_crypted_download/init.rb', line 8

def process(request, response)
  query = Mongrel::HttpRequest.query_parse(request.params['QUERY_STRING'])	
cookies  = Mongrel::HttpRequest.query_parse(request.params['HTTP_COOKIE'])
secret_string  = cookies.keys.first

query['path'] = CGI::unescape(query['path'])
key=EzCrypto::Key.with_password secret_string, secret_string
 query['path']=key.decrypt query['path']
  

if secret_string.nil? or query['timestamp'].nil? or query['path'].nil?
	response.start(500){}
elsif query['timestamp'].to_i < Time.now.to_i
	response.start(408){}
 else
	send_file(File.expand_path("." + query['path'] + query['file-name']), response)
end
end