1 /*
2  * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License").
5  * You may not use this file except in compliance with the License.
6  * A copy of the License is located at
7  *
8  *  http://aws.amazon.com/apache2.0
9  *
10  * or in the "license" file accompanying this file. This file is distributed
11  * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
12  * express or implied. See the License for the specific language governing
13  * permissions and limitations under the License.
14  */
15 
16 #include "s2n_test.h"
17 #include "utils/s2n_asn1_time.h"
18 
19 #include <stdlib.h>
20 #include <time.h>
21 
main(int argc,char ** argv)22 int main(int argc, char **argv)
23 {
24     BEGIN_TEST();
25     EXPECT_SUCCESS(s2n_disable_tls13());
26 
27     /* October 20, 2017 3:09:11 PM GMT-07:00 */
28     uint64_t expected_ns = 1508539878000000000;
29 
30     /* test GMT date parses without the millis*/
31     {
32         const char *time_str = "20171020225118Z";
33         uint64_t timestamp = 0;
34         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
35         EXPECT_EQUAL(expected_ns, timestamp);
36     }
37 
38     /* test GMT date parses */
39     {
40         const char *time_str = "20171020225118.999Z";
41         uint64_t timestamp = 0;
42         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
43         EXPECT_EQUAL(expected_ns, timestamp);
44     }
45 
46     /* test zero offset date parses */
47     {
48         const char *time_str = "20171020225118.999+0000";
49         uint64_t timestamp = 0;
50         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
51         EXPECT_EQUAL(expected_ns, timestamp);
52     }
53 
54     /* test 1:15 west offset date parses */
55     {
56         const char *time_str = "20171020213618.999-0115";
57         uint64_t timestamp = 0;
58         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
59         EXPECT_EQUAL(expected_ns, timestamp);
60     }
61 
62     /* test 1:15 east offset date parses */
63     {
64         const char *time_str = "20171021000618.999+0115";
65         uint64_t timestamp = 0;
66         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
67         EXPECT_EQUAL(expected_ns, timestamp);
68     }
69 
70     /* test invalid date fails */
71     {
72         const char *time_str = "201710210";
73         uint64_t timestamp = 0;
74         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
75     }
76 
77     /* test invalid tz character fails. */
78     {
79         const char *time_str = "20171020225118.999q";
80         uint64_t timestamp = 0;
81         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
82     }
83 
84     /* test invalid month fails. */
85     {
86         const char *time_str = "20171320225118.999Z";
87         uint64_t timestamp = 0;
88         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
89     }
90 
91     /* test invalid day fails. */
92     {
93         const char *time_str = "20171032225118.999Z";
94         uint64_t timestamp = 0;
95         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
96     }
97 
98     /* test invalid hour fails. */
99     {
100         const char *time_str = "20171020255118.999Z";
101         uint64_t timestamp = 0;
102         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
103     }
104 
105     /* test invalid minute fails. */
106     {
107         const char *time_str = "20171020226118.999Z";
108         uint64_t timestamp = 0;
109         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
110     }
111 
112     /* test invalid second fails. */
113     {
114         const char *time_str = "20171020225161.999Z";
115         uint64_t timestamp = 0;
116         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
117     }
118 
119     /* test empty fails */
120     {
121         const char *time_str = "";
122         uint64_t timestamp = 0;
123         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
124     }
125 
126     /* now run a test where we are certain UTC is not the timezone used, but make sure it still converts.
127      * Also note, the moment timezones come into play, so does daylight savings time. So there are two tests here, across the timezone boundaries.*/
128     {
129         char *tz = getenv("TZ");
130         setenv("TZ", "US/Pacific", 1);
131         tzset();
132         const char *dst_time_str = "20171020225118.999Z";
133         uint64_t timestamp = 0;
134         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(dst_time_str, strlen(dst_time_str), &timestamp));
135         EXPECT_EQUAL(expected_ns, timestamp);
136 
137         uint64_t non_dst_stamp = 1510610608000000000;
138         const char *non_dst_str = "20171113220328.999Z";
139         timestamp = 0;
140         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(non_dst_str, strlen(non_dst_str), &timestamp));
141         EXPECT_EQUAL(non_dst_stamp, timestamp);
142         if(tz) {
143             setenv("TZ", tz, 1);
144         }
145         tzset();
146     }
147 
148     /* make sure a leap-year date works */
149     {
150         const char *leap_yr = "20200229220328.999Z";
151         uint64_t leap_yr_stamp = 1583013808000000000;
152         uint64_t timestamp = 0;
153         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(leap_yr, strlen(leap_yr), &timestamp));
154         EXPECT_EQUAL(leap_yr_stamp, timestamp);
155     }
156 
157     /* make sure a leap-year date on a non-leap year works */
158     {
159         const char *non_leap_yr = "20170229220328.999Z";
160         uint64_t non_leap_yr_stamp = 1488405808000000000;
161         uint64_t timestamp = 0;
162         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(non_leap_yr, strlen(non_leap_yr), &timestamp));
163         EXPECT_EQUAL(non_leap_yr_stamp, timestamp);
164     }
165 
166     /* test non digit character fails */
167     {
168         const char *time_str = "2017102B225118.999Z";
169         uint64_t timestamp = 0;
170         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_INVALID_ARGUMENT);
171     }
172 
173     /* Test Epoch timestamp in UTC */
174     {
175         const char *time_str = "19700101000000.000Z";
176         uint64_t timestamp = 1; /* Initial assignment must be non-zero, so we know if it was set correctly. */
177         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
178         EXPECT_EQUAL(0, timestamp);
179     }
180 
181     /* Test Epoch timestamp with 1:15 east offset */
182     {
183         const char *time_str = "19700101011500.000+0115";
184         uint64_t timestamp = 1; /* Initial assignment must be non-zero, so we know if it was set correctly. */
185         EXPECT_OK(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp));
186         EXPECT_EQUAL(0, timestamp);
187     }
188 
189     /* Note: We cannot use the function to convert a timestamp from before Epoch with an offset,
190      * even if the adjusted time falls after the Epoch, e.g. "19691231224500.000-0115", because
191      * mktime() will fail. */
192 
193     /* Test UTC time before Epoch fails */
194     {
195         const char *time_str = "19691231235959.999Z";
196         uint64_t timestamp = 0;
197         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_SAFETY);
198     }
199 
200     /* Test time from way before Epoch*/
201     {
202         const char *time_str = "19680101000000.000Z";
203         uint64_t timestamp = 0;
204         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_SAFETY);
205     }
206 
207     /* Test time before Epoch with east offset fails */
208     {
209         const char *time_str = "19700101011500.000+0116"; /* One minute before Epoch */
210         uint64_t timestamp = 0;
211         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_SAFETY);
212     }
213 
214     /* Test time before Epoch with west offset fails */
215     {
216         const char *time_str = "19691231224400.000-0115"; /* One minute before Epoch */
217         uint64_t timestamp = 0;
218         EXPECT_ERROR_WITH_ERRNO(s2n_asn1_time_to_nano_since_epoch_ticks(time_str, strlen(time_str), &timestamp), S2N_ERR_SAFETY);
219     }
220 
221     END_TEST();
222 }
223