50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
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
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
# File 'lib/roadworker/dsl-tester.rb', line 50
def test(dsl)
records = fetch_records(dsl)
records_length = records.length
failures = 0
error_messages = []
warning_messages = []
a_records = {}
records.each do |key, rrs|
name, type = key
next unless type == "A"
a_records[name] = rrs.map do |record|
[(record.resource_records || []).map {|i| i[:value].strip }.sort, record.ttl]
end
end
validate_record = lambda do |key, rrs, asterisk_answers|
errors = []
original_name = key[0]
name = asterisk_to_anyname(original_name)
type = key[1]
log(:debug, 'Check DNS', :white, "#{name} #{type}")
response = query(name, type, error_messages)
unless response
failures += 1
print_failure
next
end
is_valid = rrs.any? {|record|
expected_value = (record.resource_records || []).map {|i| i[:value].strip }.sort
expected_ttl = fetch_dns_name(record.dns_name) ? 60 : record.ttl
actual_value = response.answer.map {|i|
case type
when 'TXT', 'SPF'
i.data
else
i.rdata_to_string
end
}.map {|i| i.strip }.sort
actual_ttls = response.answer.map {|i| i.ttl }
case type
when 'NS', 'PTR', 'MX', 'CNAME', 'SRV'
expected_value = expected_value.map {|i| i.downcase.sub(/\.\z/, '') }
actual_value = actual_value.map {|i| i.downcase.sub(/\.\z/, '') }
when 'TXT', 'SPF'
expected_value = expected_value.map {|i| i.scan(/(?:\\\\|(?:\\"|(?:[^\\"]|[^"])))*"((?:\\\\|(?:\\"|(?:\\"|(?:[^\\"]|[^"]))))*)"/).join(' ').gsub(/\\(.)/) { $1 }.strip }
actual_value = actual_value.map {|i| i.strip }
end
if ['SRV', 'MX'].include?(type)
expected_value = expected_value.map {|i| i.gsub(/\s+/, ' ') }
actual_value = actual_value.map {|i| i.gsub(/\s+/, ' ') }
end
expected_message = record.resource_records ? expected_value.map {|i| "#{i}(#{expected_ttl})" }.join(',') : "#{fetch_dns_name(record.dns_name)}(#{expected_ttl})"
actual_message = actual_value.zip(actual_ttls).map {|v, t| "#{v}(#{t})" }.join(',')
logmsg_expected = "expected=#{expected_message}"
logmsg_actual = "actual=#{actual_message}"
log(:debug, " #{logmsg_expected}\n #{logmsg_actual}", :white)
is_same = false
check_ttl = true
if fetch_dns_name(record.dns_name)
case fetch_dns_name(record.dns_name).sub(/\.\z/, '')
when /\.elb\.amazonaws\.com/i
check_ttl = false
is_same = response.answer.all? {|a|
response_query_ptr = query(a.value, 'PTR', error_messages)
if response_query_ptr
response_query_ptr.answer.all? do |ptr|
ptr.value =~ /\.compute\.amazonaws\.com\.\z/
end
else
false
end
}
when /\As3-website-(?:[^.]+)\.amazonaws\.com\z/
check_ttl = false
response_answer_ip_1_2 = response.answer.map {|a| a.value.split('.').slice(0, 2) }.uniq
is_same = (0...3).any? do |n|
unless n.zero?
sleep 3
log(:debug, 'Retry Check', :white, "#{name} #{type}")
end
dns_name_a = query(fetch_dns_name(record.dns_name), 'A', error_messages)
s3_website_endpoint_ips = dns_name_a.answer.map {|i| i.value }
!s3_website_endpoint_ips.empty? && s3_website_endpoint_ips.any? {|ip|
response_answer_ip_1_2.include?(ip.split('.').slice(0, 2))
}
end
when /\.cloudfront\.net\z/
check_ttl = false
is_same = response.answer.all? {|a|
response_query_ptr = query(a.value, 'PTR', error_messages)
if response_query_ptr
response_query_ptr.answer.all? do |ptr|
ptr.value =~ /\.cloudfront\.net\.\z/
end
end
}
else
if (alias_target_a_record = a_records[fetch_dns_name(record.dns_name)])
expected_message = alias_target_a_record.map {|values, ttl| values.map {|i| "#{i}(#{ttl})" }.join(',') }.uniq.join (' or ')
logmsg_expected = "expected=#{expected_message}"
expected_ttl = alias_target_a_record.map {|values, ttl| ttl }.max
is_same = alias_target_a_record.any? {|values, ttl| values == actual_value }
else
warning_messages << "#{name} #{type}: Cannot check `#{fetch_dns_name(record.dns_name)}`"
is_same = true
end
end
else
is_same = (expected_value == actual_value)
end
if is_same && check_ttl
unless actual_ttls.all? {|i| i <= expected_ttl }
is_same = false
end
end
errors << [logmsg_expected, logmsg_actual] unless is_same
if asterisk_answers
asterisk_answers.each do |ast_key, answers|
ast_name = ast_key[0]
ast_regex = Regexp.new('\A' + ast_name.sub(/\.\z/, '').gsub('.', '\.').gsub('*', '.+') + '\Z')
if ast_regex =~ name.sub(/\.\z/, '') and actual_value.any? {|i| answers.include?(i) }
warning_messages << "#{name} #{type}: same as `#{ast_name}`"
end
end
end
is_same
}
if is_valid
print_success
else
failures += 1
print_failure
errors.each do |logmsg_expected, logmsg_actual|
error_messages << "#{name} #{type}:\n #{logmsg_expected}\n #{logmsg_actual}"
end
end
end
asterisk_records = {}
asterisk_answers = {}
records.keys.each do |key|
asterisk_records[key] = records.delete(key) if key[0]['*']
end
asterisk_records.map do |key, rrs|
original_name = key[0]
name = asterisk_to_anyname(original_name)
type = key[1]
response = query(name, type)
if response
asterisk_answers[key] = response.answer.map {|i| (%w(TXT SPF).include?(type) ? i.data : i.rdata_to_string).strip }
end
end
asterisk_records.each do |key, rrs|
validate_record.call(key, rrs, nil)
end
records.each do |key, rrs|
validate_record.call(key, rrs, asterisk_answers)
end
puts unless @options.debug
error_messages.each do |msg|
log(:error, msg, :intense_red)
end
warning_messages.each do |msg|
log(:warn, "WARNING #{msg}", :intense_yellow)
end
[records_length, failures]
end
|