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6
1<?php
2/**
3 * Password Checker package.
4 *
5 * @package  automattic/jetpack-password-checker
6 */
7
8namespace Automattic\Jetpack;
9
10/**
11 * Checks passwords strength.
12 */
13class Password_Checker {
14    /**
15     * Minimum entropy bits a password should contain. 36 bits of entropy is considered
16     * to be a reasonable password, 28 stands for a weak one.
17     *
18     * @var int
19     */
20    public $minimum_entropy_bits = 28;
21
22    /**
23     * Test results array.
24     *
25     * @var array
26     */
27    public $test_results = array();
28
29    /**
30     * Current password score.
31     *
32     * @var int
33     */
34    public $score = 0;
35
36    /**
37     * Current multiplier affecting the score.
38     *
39     * @var int
40     */
41    public $multiplier = 4;
42
43    /**
44     * A common password disallow list, which on match will immediately disqualify the password.
45     *
46     * @var array
47     */
48    public $common_passwords = array();
49
50    /**
51     * Minimum password length setting.
52     *
53     * @var int
54     */
55    public $minimum_password_length = 6;
56
57    /**
58     * User defined strings that passwords need to be tested for a match against.
59     *
60     * @var array
61     */
62    private $user_strings_to_test = array();
63
64    /**
65     * The user object for whom the password is being tested.
66     *
67     * @var mixed
68     */
69    protected $user = null;
70
71    /**
72     * The user identifier for whom the password is being tested, used if there's no user object.
73     *
74     * @var mixed
75     */
76    protected $user_id = null;
77
78    /**
79     * Creates an instance of the password checker class for the specified user, or
80     * defaults to the currently logged in user.
81     *
82     * @param mixed $user can be an integer ID, or a WP_User object.
83     */
84    public function __construct( $user = null ) {
85        if ( $user === null ) {
86            $this->user_id = get_current_user_id();
87        } elseif ( is_object( $user ) && isset( $user->ID ) ) {
88            // Existing user, using their ID.
89            $this->user_id = $user->ID;
90        } elseif ( is_object( $user ) ) {
91            // Newly created user, using existing data.
92            $this->user    = $user;
93            $this->user_id = 'new_user';
94        } else {
95            $this->user_id = $user;
96        }
97
98        /**
99         * Filters the password strength enforcement settings.
100         *
101         * You can supply your own passwords that should not be used for authenticating in addition to weak and easy
102         * to guess strings for each user. For example, you can add passwords from known password databases to avoid
103         * compromised password usage.
104         *
105         * @param array $common_passwords strings that are forbidden for use as passwords.
106         */
107        $this->common_passwords = apply_filters( 'password_checker_common_passwords', $this->common_passwords );
108
109        /**
110         * Filters the password strength enforcement settings.
111         *
112         * You can modify the minimum password length using this filter.
113         *
114         * @param int $minimum_password_length minimum password length.
115         */
116        $this->minimum_password_length = apply_filters( 'password_checker_minimum_password_length', $this->minimum_password_length );
117
118        /**
119         * Filters the password strength enforcement settings.
120         *
121         * You can modify the minimum entropy bits requirement using this filter.
122         *
123         * @param int $minimum_entropy_bits minimum entropy bits requirement.
124         */
125        $this->minimum_entropy_bits = apply_filters( 'password_checker_minimum_entropy_bits', $this->minimum_entropy_bits );
126    }
127
128    /**
129     * Run tests against a password.
130     *
131     * @param string $password      the password.
132     * @param bool   $required_only only test against required conditions, defaults to false.
133     *
134     * @return array an array containing failed and passed test results.
135     */
136    public function test( $password, $required_only = false ) {
137        // Run the tests.
138        $results = $this->run_tests( $password, $this->get_tests(), $required_only );
139
140        // If we've failed on the required tests, return now.
141        if ( ! empty( $results['failed'] ) ) {
142            return array(
143                'passed'       => false,
144                'test_results' => $results,
145            );
146        }
147
148        $entropy_bits = $this->calculate_entropy_bits( $password );
149
150        // If we have failed the entropy bits test, run the regex tests so we can suggest improvements.
151        if ( $entropy_bits < $this->minimum_entropy_bits ) {
152            $results['failed']['entropy_bits'] = $entropy_bits;
153            // Run the tests.
154            $results = array_merge( $results, $this->run_tests( $password, $this->get_tests( 'preg_match' ) ) );
155        }
156
157        return ( array(
158            'passed'       => empty( $results['failed'] ),
159            'test_results' => $results,
160        ) );
161    }
162
163    /**
164     * Run the tests using the currently set up object values.
165     *
166     * @param string $password      the password.
167     * @param array  $tests         tests to run.
168     * @param bool   $required_only whether to run only required tests.
169     *
170     * @return array test results.
171     */
172    public function run_tests( $password, $tests, $required_only = false ) {
173        $results = array(
174            'passed' => array(),
175            'failed' => array(),
176        );
177
178        foreach ( $tests as $test_type => $section_tests ) {
179            foreach ( $section_tests as $test_name => $test_data ) {
180                // Skip non-required tests if required_only param is set.
181                if ( $required_only && ! $test_data['required'] ) {
182                    continue;
183                }
184
185                $result = call_user_func_array( array( $this, 'test_' . $test_type ), array( $password, $test_data ) );
186                if ( $result ) {
187                    $results['passed'][] = array( 'test_name' => $test_name );
188                } else {
189                    $results['failed'][] = array(
190                        'test_name'   => $test_name,
191                        'explanation' => $test_data['error'],
192                    );
193
194                    if ( isset( $test_data['fail_immediately'] ) ) {
195                        return $results;
196                    }
197                }
198            }
199        }
200
201        return $results;
202    }
203
204    /**
205     * Returns an array of tests that need to be run on password strings.
206     *
207     * @param array $sections only return specific sections with the passed keys, defaults to all.
208     *
209     * @return array test descriptions.
210     */
211    public function get_tests( $sections = false ) {
212        // Note: these should be in order of priority.
213        $tests = array(
214            'preg_match'      => array(
215                'no_backslashes'   => array(
216                    'pattern'          => '/^[^\\\\]*$/u',
217                    'error'            => __( 'Passwords may not contain the character "\".', 'jetpack-password-checker' ),
218                    'required'         => true,
219                    'fail_immediately' => true,
220                ),
221                'minimum_length'   => array(
222                    'pattern'          => '/^.{' . $this->minimum_password_length . ',}/u',
223                    /* translators: %d is a number of characters in the password. */
224                    'error'            => sprintf( __( 'Password must be at least %d characters.', 'jetpack-password-checker' ), $this->minimum_password_length ),
225                    'required'         => true,
226                    'fail_immediately' => true,
227                ),
228                'has_mixed_case'   => array(
229                    'pattern'  => '/([a-z].*?[A-Z]|[A-Z].*?[a-z])/u',
230                    'error'    => __( 'This password is too easy to guess: you can improve it by adding additional uppercase letters, lowercase letters, or numbers.', 'jetpack-password-checker' ),
231                    'required' => false,
232                ),
233                'has_digit'        => array(
234                    'pattern'  => '/\d/u',
235                    'error'    => __( 'This password is too easy to guess: you can improve it by mixing both letters and numbers.', 'jetpack-password-checker' ),
236                    'required' => false,
237                ),
238                'has_special_char' => array(
239                    'pattern'  => '/[^a-zA-Z\d]/u',
240                    'error'    => __( 'This password is too easy to guess: you can improve it by including special characters such as !#=?*&.', 'jetpack-password-checker' ),
241                    'required' => false,
242                ),
243            ),
244            'compare_to_list' => array(
245                'not_a_common_password'       => array(
246                    'list_callback'    => 'get_common_passwords',
247                    'compare_callback' => 'negative_in_array',
248                    'error'            => __( 'This is a very common password. Choose something that will be harder for others to guess.', 'jetpack-password-checker' ),
249                    'required'         => true,
250                ),
251                'not_same_as_other_user_data' => array(
252                    'list_callback'    => 'get_other_user_data',
253                    'compare_callback' => 'test_not_same_as_other_user_data',
254                    'error'            => __( 'Your password is too weak: Looks like you are including easy to guess information about yourself. Try something a little more unique.', 'jetpack-password-checker' ),
255                    'required'         => true,
256                ),
257            ),
258        );
259
260        /**
261         * Filters the password strength enforcement settings.
262         *
263         * You can determine the tests run and their order based on whatever criteria you wish to specify.
264         *
265         * @param array $tests tests to run.
266         */
267        $tests = apply_filters( 'password_checker_tests', $tests );
268
269        if ( ! $sections ) {
270            return $tests;
271        }
272
273        $sections = (array) $sections;
274
275        return array_intersect_key( $tests, array_flip( $sections ) );
276    }
277
278    /**
279     * Provides the regular expression tester functionality.
280     *
281     * @param string $password  the password.
282     * @param array  $test_data the current test data.
283     *
284     * @return bool does the test pass?
285     */
286    protected function test_preg_match( $password, $test_data ) {
287        return preg_match( $test_data['pattern'], $password );
288    }
289
290    /**
291     * Provides the comparison tester functionality.
292     *
293     * @param string $password  the password.
294     * @param array  $test_data the current test data.
295     *
296     * @return bool does the test pass?
297     */
298    protected function test_compare_to_list( $password, $test_data ) {
299        if (
300            ! is_callable( array( $this, $test_data['list_callback'] ) )
301            || ! is_callable( array( $this, $test_data['compare_callback'] ) )
302        ) {
303            return false;
304        }
305
306        return call_user_func(
307            array(
308                $this,
309                $test_data['compare_callback'],
310            ),
311            $password,
312            call_user_func( array( $this, $test_data['list_callback'] ) )
313        );
314    }
315
316    /**
317     * Getter for the common password list.
318     *
319     * @return array common passwords.
320     */
321    protected function get_common_passwords() {
322        return $this->common_passwords;
323    }
324
325    /**
326     * Returns the widely known user data that cannot be used in the password to avoid
327     * predictable strings.
328     *
329     * @return array user data.
330     */
331    protected function get_other_user_data() {
332        if ( empty( $this->user_id ) ) {
333            return array();
334        }
335
336        $user_data = get_userdata( $this->user_id );
337        if ( ! $user_data ) {
338            return array();
339        }
340
341        if ( isset( $user_data->ID ) ) {
342            $this->add_user_strings_to_test( get_user_meta( $user_data->ID, 'first_name', true ) );
343            $this->add_user_strings_to_test( get_user_meta( $user_data->ID, 'last_name', true ) );
344            $this->add_user_strings_to_test( get_user_meta( $user_data->ID, 'nickname', true ) );
345        }
346
347        if ( isset( $user_data->user_nicename ) ) {
348            $this->add_user_strings_to_test( $user_data->user_nicename );
349        }
350
351        if ( isset( $user_data->display_name ) ) {
352            $this->add_user_strings_to_test( $user_data->display_name );
353        }
354
355        if ( isset( $user_data->first_name ) ) {
356            $this->add_user_strings_to_test( $user_data->first_name );
357        }
358
359        if ( isset( $user_data->last_name ) ) {
360            $this->add_user_strings_to_test( $user_data->last_name );
361        }
362
363        if ( isset( $user_data->user_email ) ) {
364            $email_username = substr( $user_data->user_email, 0, strpos( $user_data->user_email, '@' ) );
365            $this->add_user_strings_to_test( $email_username, '.' );
366            $this->add_user_strings_to_test( $user_data->user_email );
367        }
368
369        return $this->get_user_strings_to_test();
370    }
371
372    /**
373     * Compare the password for matches with known user data.
374     *
375     * @param string $password        the password.
376     * @param array  $strings_to_test known user data.
377     *
378     * @return bool does the test pass?
379     */
380    protected function test_not_same_as_other_user_data( $password, $strings_to_test ) {
381        if ( empty( $strings_to_test ) ) {
382            return false;
383        }
384
385        $password_lowercase = strtolower( $password );
386
387        foreach ( $strings_to_test as $string ) {
388            $string          = strtolower( $string );
389            $string_reversed = strrev( $string );
390
391            if ( $password_lowercase === $string || $password_lowercase === $string_reversed ) {
392                return false;
393            }
394
395            // Also check for the string or reversed string with any numbers just stuck to the end to catch things like bob123 as passwords.
396            if (
397                preg_match( '/^' . preg_quote( $string, '/' ) . '\d+$/', $password_lowercase )
398                || preg_match( '/^' . preg_quote( $string_reversed, '/' ) . '\d+$/', $password_lowercase )
399            ) {
400                return false;
401            }
402        }
403
404        return true;
405    }
406
407    /**
408     * A shorthand for the not in array construct.
409     *
410     * @param mixed $needle   the needle.
411     * @param array $haystack the haystack.
412     *
413     * @return bool is the needle not in the haystack?
414     */
415    protected function negative_in_array( $needle, $haystack ) {
416        return ! in_array( $needle, $haystack, true );
417    }
418
419    /**
420     * A helper function used to break a single string into its constituents so
421     * that both the full string and its constituents and any variants thereof
422     * can be tested against the password.
423     *
424     * @param string $string            the string to be broken down.
425     * @param string $explode_delimiter delimiter.
426     *
427     * @return bool
428     */
429    protected function add_user_strings_to_test( $string, $explode_delimiter = ' ' ) {
430        // Don't check against empty strings.
431        if ( empty( $string ) ) {
432            return false;
433        }
434
435        $strings = explode( $explode_delimiter, $string );
436
437        // Remove any non alpha numeric characters from the strings to check against.
438        foreach ( $strings as $key => $_string ) {
439            $_string = trim( preg_replace( '/[^a-zA-Z0-9]/', '', $_string ) );
440            if ( empty( $_string ) ) {
441                continue;
442            }
443
444            $strings[ $key ] = $_string;
445        }
446
447        // Check the original too.
448        $strings[] = trim( $string );
449
450        // Check the original minus non alpha numeric characters.
451        $strings[] = trim( preg_replace( '/[^a-zA-Z0-9]/', '', $string ) );
452
453        // Remove any empty strings.
454        // Note: This will also filter out '0'.
455        $strings = array_filter( $strings );
456        if ( empty( $strings ) ) {
457            return false;
458        }
459
460        $this->user_strings_to_test = array_unique( array_merge( $this->user_strings_to_test, $strings ) );
461
462        return true;
463    }
464
465    /**
466     * Getter for the user strings array.
467     *
468     * @return array user strings.
469     */
470    protected function get_user_strings_to_test() {
471        return $this->user_strings_to_test;
472    }
473
474    /**
475     * Return a character set size that is used in the string.
476     *
477     * @param string $password the password.
478     *
479     * @return int number of different character sets in use.
480     */
481    protected function get_charset_size( $password ) {
482        $size = 0;
483
484        // Lowercase a-z.
485        if ( preg_match( '/[a-z]/', $password ) ) {
486            $size += 26;
487        }
488
489        // Uppercase A-Z.
490        if ( preg_match( '/[A-Z]/', substr( $password, 1, - 1 ) ) ) {
491            $size += 26;
492        }
493
494        // Digits.
495        if ( preg_match( '/\d/', substr( $password, 1, - 1 ) ) ) {
496            $size += 10;
497        }
498
499        // Over digits symbols.
500        if ( preg_match( '/[!|@|#|$|%|^|&|*|(|)]/', $password ) ) {
501            $size += 10;
502        }
503
504        // Other symbols.
505        if ( preg_match( '#[`|~|-|_|=|+|\[|{|\]|}|\\|\|;:\'",<\.>/\?]#', $password ) ) {
506            $size += 20;
507        }
508
509        // Spaces.
510        if ( strpos( $password, ' ' ) ) {
511            ++$size;
512        }
513
514        return $size;
515    }
516
517    /**
518     * Shorthand for getting a character index.
519     *
520     * @param string $char character.
521     *
522     * @return int the character code.
523     */
524    protected function get_char_index( $char ) {
525        $char = strtolower( $char[0] );
526        if ( $char < 'a' || $char > 'z' ) {
527            return 0;
528        } else {
529            return ord( $char[0] ) - ord( 'a' ) + 1;
530        }
531    }
532
533    /**
534     * This is the password strength calculation algorithm, based on the formula H = L(logN/log2).
535     *
536     * H = Entropy
537     * L = String length (the for iterator)
538     * N = Our charset size, via get_charset_size()
539     *
540     * @see https://en.wikipedia.org/wiki/Password_strength#Random_passwords
541     *
542     * On top of the base formula, we're also multiplying the bits of entropy for every char
543     * by 1 - (the probabily of it following the previous char)
544     * i.e.: the probablity of U following Q is ~0.84. If our password contains this pair of characters,
545     * the u char will only add ( 0.16^2 * charset_score ) to our total of entropy bits.
546     *
547     * @param string $password the password.
548     *
549     * @return float|int
550     */
551    protected function calculate_entropy_bits( $password ) {
552        $bits = 0;
553        // Calculate the score.
554        $charset_score = log( $this->get_charset_size( $password ) ) / log( 2 );
555
556        $aidx   = $this->get_char_index( $password[0] );
557        $length = strlen( $password );
558
559        for ( $b = 1; $b < $length; $b++ ) {
560            $bidx = $this->get_char_index( $password[ $b ] );
561
562            // 27 = number of chars in the index (a-z,' ').
563            $c = 1.0 - $this->frequency_table[ $aidx * 27 + $bidx ];
564
565            // Increment the bits.
566            $bits += $charset_score * $c * $c;
567
568            // Move on to next pair.
569            $aidx = $bidx;
570        }
571
572        return $bits;
573    }
574
575    /**
576     * A frequency table of character pairs, starting with  '  ' then  ' a', ' b' [...] , 'a ', 'aa' etc.
577     *
578     * @see http://rumkin.com/tools/password/passchk.php
579     *
580     * @var array
581     */
582    public $frequency_table = array(
583        0.23653710453418866,
584        0.04577693541332556,
585        0.03449832337075375,
586        0.042918209651552706,
587        0.037390873305146524,
588        0.028509112115468728,
589        0.02350896632162123,
590        0.022188657238664526,
591        0.028429800262428927,
592        0.04357019973757107,
593        0.00913602565971716,
594        0.03223093745443942,
595        0.02235311269864412,
596        0.04438081352966905,
597        0.04512377897652719,
598        0.020055401662049863,
599        0.055903192885260244,
600        0.0024388394809739026,
601        0.035207464644991984,
602        0.07355941099285611,
603        0.036905671380667734,
604        0.026134421927394666,
605        0.023787724158040528,
606        0.011352092141711621,
607        0.0032354570637119114,
608        0.005986878553725033,
609        0.008861933226417843,
610        0.11511532293337222,
611        0.027556203528211108,
612        0.024331243621519172,
613        0.039266365359381834,
614        0.031599941682461,
615        0.014403265782183991,
616        0.015480973902901297,
617        0.027770812071730572,
618        0.00942761335471643,
619        0.039872867764980315,
620        0.0078122175244204695,
621        0.02808456043154979,
622        0.08429100451960927,
623        0.04688963405744277,
624        0.13831170724595424,
625        0.002540311998833649,
626        0.025211838460416972,
627        0.001543082081936142,
628        0.09519638431258201,
629        0.061845750109345385,
630        0.08907071001603732,
631        0.02137571074500656,
632        0.027093162268552268,
633        0.005521504592506197,
634        0.003023181221752442,
635        0.007086747339262283,
636        0.010262720513194342,
637        0.08785070710016038,
638        0.14617757690625455,
639        0.03417291150313457,
640        0.0059635515381250915,
641        0.006146668610584633,
642        0.195202799241872,
643        0.002774748505613063,
644        0.004715556203528212,
645        0.0044776206444088066,
646        0.11205481848665985,
647        0.005654468581425864,
648        0.0028820527773727946,
649        0.07383000437381543,
650        0.005516839189386207,
651        0.006496573844583759,
652        0.09843067502551392,
653        0.0027140982650532145,
654        0.0006893133109782768,
655        0.08425368129464937,
656        0.021325557661466685,
657        0.006493074792243767,
658        0.07023414491908442,
659        0.002077270739174807,
660        0.0024633328473538415,
661        0.0007744569179180639,
662        0.015413325557661468,
663        0.0011990086018370024,
664        0.13162851727657093,
665        0.10115993585070711,
666        0.0026989357049132527,
667        0.03319317684793702,
668        0.002946202070272634,
669        0.0783216212275842,
670        0.0018358361277154103,
671        0.00258813238081353,
672        0.2141688292754046,
673        0.09853681294649366,
674        0.0032482869222918796,
675        0.04359352675317102,
676        0.01993526753171016,
677        0.0036880011663507797,
678        0.008011663507799971,
679        0.12014696019827964,
680        0.0029846916460125384,
681        0.0017553579238956116,
682        0.029470185158186325,
683        0.010413179763813967,
684        0.030699518880303252,
685        0.03508499781309229,
686        0.002021285901734947,
687        0.0010613792097973467,
688        0.0005295232541186761,
689        0.009677212421635807,
690        0.010585799679253535,
691        0.17101734946785244,
692        0.07968625164018078,
693        0.007839043592360402,
694        0.005438693687126403,
695        0.0183606939787141,
696        0.2732701559994168,
697        0.004953491762647616,
698        0.007259367254701851,
699        0.008104971570199739,
700        0.13274588132380813,
701        0.004210526315789474,
702        0.004997813092287506,
703        0.017006560723137484,
704        0.007442484327161393,
705        0.016789619478058026,
706        0.08477737279486806,
707        0.005106283714827234,
708        0.0005026971861787433,
709        0.04040355736987899,
710        0.037535500801866156,
711        0.00885960052485785,
712        0.0336410555474559,
713        0.007066919376002332,
714        0.005344219273946639,
715        0.0006333284735384167,
716        0.010684939495553289,
717        0.0063064586674442345,
718        0.15386849394955532,
719        0.015049424114302375,
720        0.012162705933809595,
721        0.020425134859308938,
722        0.037366379938766583,
723        0.02157165767604607,
724        0.009373961218836564,
725        0.0173214754337367,
726        0.009616562181075958,
727        0.029522670943286193,
728        0.010154249890654615,
729        0.018600962239393497,
730        0.06362210234728094,
731        0.03157078291296107,
732        0.151603440734801,
733        0.0062329785683044175,
734        0.014775331681003062,
735        0.0020854351946347867,
736        0.1826342032366234,
737        0.0878017203674005,
738        0.054190989940224525,
739        0.010329202507654177,
740        0.012763376585508092,
741        0.0064872430383437815,
742        0.006381105117364048,
743        0.005388540603586529,
744        0.0090800408222773,
745        0.09611196967487973,
746        0.09940691062837148,
747        0.01033969966467415,
748        0.004034407348009914,
749        0.008826942703017933,
750        0.11474675608689314,
751        0.07132584924916169,
752        0.012388977985129028,
753        0.005435194634786413,
754        0.1417174515235457,
755        0.0037066627788307337,
756        0.0045802595130485495,
757        0.060800699810468,
758        0.005341886572386646,
759        0.005683627350925791,
760        0.12434932205860913,
761        0.004596588423968508,
762        0.0007534626038781163,
763        0.07107041842834232,
764        0.022361277154104096,
765        0.04784720804782038,
766        0.06277533168100306,
767        0.003441901151771395,
768        0.005828254847645429,
769        0.0009669047966175828,
770        0.009470768333576322,
771        0.002077270739174807,
772        0.12797667298440007,
773        0.08797783933518005,
774        0.005388540603586529,
775        0.0024913252660737715,
776        0.007550954949701123,
777        0.2786866890217233,
778        0.002509986878553725,
779        0.029002478495407494,
780        0.0303204548768042,
781        0.07576614666861058,
782        0.00246799825047383,
783        0.00592389561160519,
784        0.039574281965301064,
785        0.00706808572678233,
786        0.03304505029887739,
787        0.05474150750838315,
788        0.0028633911648928414,
789        0.0005073625892987316,
790        0.07293541332555767,
791        0.053528502697186175,
792        0.022566554891383584,
793        0.038151334013704616,
794        0.002716430966613209,
795        0.005049132526607377,
796        0.0009902318122175246,
797        0.008997229916897508,
798        0.0011861787432570347,
799        0.1666377022889634,
800        0.14414462749671964,
801        0.003374252806531564,
802        0.005169266656947077,
803        0.008468873013558828,
804        0.16337541915731155,
805        0.002873888321912815,
806        0.004305000728969237,
807        0.0031141565825922144,
808        0.1241172182533897,
809        0.0052800699810468,
810        0.008969237498177577,
811        0.024094474413179766,
812        0.017029887738737422,
813        0.01722700102055693,
814        0.10618457501093455,
815        0.006147834961364631,
816        0.0008269427030179326,
817        0.03303571949263741,
818        0.024188948826359528,
819        0.05213937891820965,
820        0.04505846333284735,
821        0.0035270447587111824,
822        0.006799825047383001,
823        0.0008199445983379502,
824        0.02206735675754483,
825        0.001010059775477475,
826        0.11971191135734072,
827        0.04656538854060359,
828        0.011243621519171892,
829        0.06513019390581717,
830        0.032375564951159064,
831        0.06347047674588133,
832        0.013678961947805804,
833        0.03309870243475726,
834        0.006982942119842543,
835        0.009726199154395685,
836        0.010121592068814697,
837        0.032514360693978714,
838        0.04986032949409535,
839        0.039734072022160664,
840        0.15690683773144773,
841        0.03949963551538125,
842        0.014790494241143023,
843        0.002722262720513194,
844        0.02614375273363464,
845        0.10753637556495116,
846        0.06764834523983088,
847        0.006221315060504448,
848        0.021317393206006705,
849        0.0030826651115322934,
850        0.002399183554454002,
851        0.0019069835252952323,
852        0.015595276279341012,
853        0.0925126111678087,
854        0.18437906400349907,
855        0.006538562472663654,
856        0.008719638431258201,
857        0.02116693395538708,
858        0.18241376293920394,
859        0.007290858725761773,
860        0.005976381396705059,
861        0.005629975215045925,
862        0.09721300481119698,
863        0.004810030616707975,
864        0.024303251202799244,
865        0.012954658113427612,
866        0.011057005394372358,
867        0.02733459688001166,
868        0.10135121737862662,
869        0.012016912086309959,
870        0.001055547455897361,
871        0.009027555037177431,
872        0.07162326869806095,
873        0.01007143898527482,
874        0.07297623560285756,
875        0.006741507508383147,
876        0.0036891675171307776,
877        0.0008409389123778977,
878        0.011272780288671819,
879        0.007020265344802449,
880        0.1030389269572824,
881        0.15350809155853623,
882        0.004232686980609419,
883        0.004353987461729115,
884        0.0023385333138941536,
885        0.14450386353695874,
886        0.002546143752733635,
887        0.0024470039364338824,
888        0.01200758128006998,
889        0.0981227584195947,
890        0.003161976964572095,
891        0.040695145064878264,
892        0.03460446129173349,
893        0.003908441463770229,
894        0.01598483743986004,
895        0.13107216795451232,
896        0.003129319142732177,
897        0.00032307916605919226,
898        0.04050386353695874,
899        0.05452689896486368,
900        0.03589677795597026,
901        0.07087097244496282,
902        0.006143169558244642,
903        0.008684647907858289,
904        0.0004607085580988482,
905        0.022010205569324977,
906        0.0009097536083977258,
907        0.07328765126111678,
908        0.14751421490013122,
909        0.008015162560139961,
910        0.006601545414783497,
911        0.025279486805656802,
912        0.1682449336637994,
913        0.008313748359819215,
914        0.007010934538562473,
915        0.005886572386645284,
916        0.16889575739903775,
917        0.004123050007289692,
918        0.011925936725470185,
919        0.10007289692374982,
920        0.013380376148126549,
921        0.009021723283277445,
922        0.08650823735238372,
923        0.007756232686980609,
924        0.0007243038343781893,
925        0.0026791077416533026,
926        0.02797492345823006,
927        0.032384895757399036,
928        0.04187432570345531,
929        0.00882461000145794,
930        0.0032401224668318998,
931        0.00033357632307916605,
932        0.027878116343490307,
933        0.0022277299897944304,
934        0.14333518005540166,
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1311        0.06015454147834961,
1312    );
1313}