Class: SecureEscrow::Middleware::Presenter
Constant Summary
SecureEscrow::MiddlewareConstants::BAD_NONCE, SecureEscrow::MiddlewareConstants::CONTENT_TYPE, SecureEscrow::MiddlewareConstants::COOKIE_SEPARATOR, SecureEscrow::MiddlewareConstants::DATA_KEY, SecureEscrow::MiddlewareConstants::ESCROW_MATCH, SecureEscrow::MiddlewareConstants::EXPIRE_COOKIE, SecureEscrow::MiddlewareConstants::GET, SecureEscrow::MiddlewareConstants::HTTPS, SecureEscrow::MiddlewareConstants::HTTP_COOKIE, SecureEscrow::MiddlewareConstants::HTTP_X_FORWARDED_PROTO, SecureEscrow::MiddlewareConstants::JSON_CONTENT, SecureEscrow::MiddlewareConstants::LCASE_HTTPS, SecureEscrow::MiddlewareConstants::LOCATION, SecureEscrow::MiddlewareConstants::NONCE, SecureEscrow::MiddlewareConstants::ON, SecureEscrow::MiddlewareConstants::POST, SecureEscrow::MiddlewareConstants::QUERY_STRING, SecureEscrow::MiddlewareConstants::RACK_URL_SCHEME, SecureEscrow::MiddlewareConstants::RAILS_ROUTES, SecureEscrow::MiddlewareConstants::REDIRECT_CODES, SecureEscrow::MiddlewareConstants::REQUEST_METHOD, SecureEscrow::MiddlewareConstants::REQUEST_PATH, SecureEscrow::MiddlewareConstants::RESPONSE, SecureEscrow::MiddlewareConstants::TTL
Instance Attribute Summary collapse
Instance Method Summary
collapse
Constructor Details
#initialize(next_app, rails_app, config, env) ⇒ Presenter
Returns a new instance of Presenter.
65
66
67
68
69
70
71
|
# File 'lib/secure_escrow/middleware.rb', line 65
def initialize next_app, rails_app, config, env
@next_app = next_app
@rails_app = rails_app
@config = config
@store = config[:store]
@env = env
end
|
Instance Attribute Details
#config ⇒ Object
Returns the value of attribute config.
63
64
65
|
# File 'lib/secure_escrow/middleware.rb', line 63
def config
@config
end
|
#env ⇒ Object
Returns the value of attribute env.
63
64
65
|
# File 'lib/secure_escrow/middleware.rb', line 63
def env
@env
end
|
#next_app ⇒ Object
Returns the value of attribute next_app.
63
64
65
|
# File 'lib/secure_escrow/middleware.rb', line 63
def next_app
@next_app
end
|
#rails_app ⇒ Object
Returns the value of attribute rails_app.
63
64
65
|
# File 'lib/secure_escrow/middleware.rb', line 63
def rails_app
@rails_app
end
|
#store ⇒ Object
Returns the value of attribute store.
63
64
65
|
# File 'lib/secure_escrow/middleware.rb', line 63
def store
@store
end
|
Instance Method Details
#call_result ⇒ Object
197
198
199
|
# File 'lib/secure_escrow/middleware.rb', line 197
def call_result
@call_result ||= next_app.call env
end
|
#escrow_id ⇒ Object
152
153
154
|
# File 'lib/secure_escrow/middleware.rb', line 152
def escrow_id
@escrow_id ||= (escrow_id_and_nonce || [])[0]
end
|
#escrow_key(id) ⇒ Object
160
161
162
|
# File 'lib/secure_escrow/middleware.rb', line 160
def escrow_key id
"escrow:#{id}"
end
|
#escrow_nonce ⇒ Object
156
157
158
|
# File 'lib/secure_escrow/middleware.rb', line 156
def escrow_nonce
@escrow_nonce ||= (escrow_id_and_nonce || [])[1]
end
|
#generate_id_and_nonce ⇒ Object
193
194
195
|
# File 'lib/secure_escrow/middleware.rb', line 193
def generate_id_and_nonce
[ UUID.generate, SecureRandom.hex(4) ]
end
|
#redirect_to_location(token = nil) ⇒ Object
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
# File 'lib/secure_escrow/middleware.rb', line 201
def redirect_to_location token = nil
redirect_to_options = {
protocol: rails_config[:insecure_domain_protocol] || request.protocol,
host: rails_config[:insecure_domain_name] || request.host,
port: rails_config[:insecure_domain_port] || request.port,
}
if token && !homogenous_host_names?
redirect_to_options.merge!(DATA_KEY => token)
end
routes.url_for(
recognize_path.merge(redirect_to_options))
end
|
#redirect_to_response! ⇒ Object
127
128
129
130
131
|
# File 'lib/secure_escrow/middleware.rb', line 127
def redirect_to_response!
status, , response = call_result
[ status, , response ]
end
|
#response_is_redirect? ⇒ Boolean
80
81
82
83
|
# File 'lib/secure_escrow/middleware.rb', line 80
def response_is_redirect?
status, , response = call_result
REDIRECT_CODES.include? status
end
|
#serve_response_from_application! ⇒ Object
148
149
150
|
# File 'lib/secure_escrow/middleware.rb', line 148
def serve_response_from_application!
call_result
end
|
#serve_response_from_escrow! ⇒ Object
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
|
# File 'lib/secure_escrow/middleware.rb', line 93
def serve_response_from_escrow!
key = escrow_key escrow_id
value = JSON.parse(store.get key)
if escrow_nonce == value[NONCE]
store.del key
status, , body = value[RESPONSE]
if [CONTENT_TYPE] && JSON_CONTENT.match([CONTENT_TYPE])
original_body = ""
body.each do |chunk|
original_body += chunk
end
body = [
"<html><body><script id=\"response\" type=\"text/x-escrow-json\">%s</script></body></html>" %
{ status: status, body: original_body }.to_json
]
[CONTENT_TYPE] = "text/html; charset=utf-8"
status = 200
end
expire_cookie_token!()
[ status, , body ]
else
return [ 403, {}, [ BAD_NONCE ] ]
end
end
|
#serve_response_from_escrow? ⇒ Boolean
73
74
75
76
77
78
|
# File 'lib/secure_escrow/middleware.rb', line 73
def serve_response_from_escrow?
return false unless GET == env[REQUEST_METHOD]
return false unless escrow_id
store.exists escrow_key(escrow_id)
end
|
#store_in_escrow(status, header, response) ⇒ Object
Take a Rack status, header, and response Serialize the response to a string Serialize the structure as JSON Generate a unique id for the data Generate a nonce for the data Store in Redis
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
# File 'lib/secure_escrow/middleware.rb', line 170
def store_in_escrow status, , response
id, nonce = generate_id_and_nonce
response_body = []
response.each { |content| response_body.push(content) }
response.close if response.respond_to? :close
value = {
NONCE => nonce,
RESPONSE => [ status, , [ response_body.join ] ]
}
key = escrow_key id
store.setex key, TTL, value.to_json
[ id, nonce ]
end
|
#store_response_in_escrow? ⇒ Boolean
85
86
87
88
89
90
91
|
# File 'lib/secure_escrow/middleware.rb', line 85
def store_response_in_escrow?
return false unless POST == env[REQUEST_METHOD] && https?
recognized = recognize_path
config[:allow_non_escrow_routes] ?
recognized :
recognized && recognized[:escrow]
end
|
#store_response_in_escrow_and_redirect! ⇒ Object
133
134
135
136
137
138
139
140
141
142
143
144
145
146
|
# File 'lib/secure_escrow/middleware.rb', line 133
def store_response_in_escrow_and_redirect!
status, , response = call_result
id, nonce = store_in_escrow status, , response
token = "#{id}.#{nonce}"
= {
LOCATION => redirect_to_location(token),
CONTENT_TYPE => [CONTENT_TYPE]
}
set_cookie_token!(, token) if homogenous_host_names?
return [ 303, , [ "Escrowed at #{token}" ] ]
end
|