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1<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
2/**
3 * The password strength checker.
4 *
5 * @package automattic/jetpack
6 */
7
8/**
9 * Checks passwords strength.
10 */
11class Jetpack_Password_Checker {
12
13    /**
14     * Minimum entropy bits a password should contain. 36 bits of entropy is considered
15     * to be a reasonable password, 28 stands for a weak one.
16     *
17     * @const Integer
18     */
19    const MINIMUM_BITS = 28;
20
21    /**
22     * Currently tested password.
23     *
24     * @var String
25     */
26    public $password = '';
27
28    /**
29     * Test results array.
30     *
31     * @var Array
32     */
33    public $test_results = '';
34
35    /**
36     * Current password score.
37     *
38     * @var Integer
39     */
40    public $score = 0;
41
42    /**
43     * Current multiplier affecting the score.
44     *
45     * @var Integer
46     */
47    public $multiplier = 4;
48
49    /**
50     * A common password disallow list, which on match will immediately disqualify the password.
51     *
52     * @var Array
53     */
54    public $common_passwords = array();
55
56    /**
57     * Minimum password length setting.
58     *
59     * @var Integer
60     */
61    public $min_password_length = 6;
62
63    /**
64     * User defined strings that passwords need to be tested for a match against.
65     *
66     * @var Array
67     */
68    private $user_strings_to_test = array();
69
70    /**
71     * The user object for whom the password is being tested.
72     *
73     * @var WP_User
74     */
75    protected $user;
76
77    /**
78     * The user identifier for whom the password is being tested, used if there's no user object.
79     *
80     * @var WP_User
81     */
82    protected $user_id;
83
84    /**
85     * Creates an instance of the password checker class for the specified user, or
86     * defaults to the currently logged in user.
87     *
88     * @param Mixed $user can be an integer ID, or a WP_User object.
89     */
90    public function __construct( $user = null ) {
91
92        /**
93         * Filters Jetpack's password strength enforcement settings. You can supply your own passwords
94         * that should not be used for authenticating in addition to weak and easy to guess strings for
95         * each user. For example, you can add passwords from known password databases to avoid compromised
96         * password usage.
97         *
98         * @since 7.2.0
99         *
100         * @param array $restricted_passwords strings that are forbidden for use as passwords.
101         */
102        $this->common_passwords = apply_filters( 'jetpack_password_checker_restricted_strings', array() );
103
104        if ( $user === null ) {
105            $this->user_id = get_current_user_id();
106        } elseif ( is_object( $user ) && isset( $user->ID ) ) {
107
108            // Existing user, using their ID.
109            $this->user_id = $user->ID;
110
111        } elseif ( is_object( $user ) ) {
112
113            // Newly created user, using existing data.
114            $this->user    = $user;
115            $this->user_id = 'new_user';
116
117        } else {
118            $this->user_id = $user;
119        }
120        $this->min_password_length = apply_filters( 'better_password_min_length', $this->min_password_length );
121    }
122
123    /**
124     * Run tests against a password.
125     *
126     * @param String  $password      the tested string.
127     * @param Boolean $required_only only test against required conditions, defaults to false.
128     * @return array $results an array containing failed and passed test results.
129     */
130    public function test( $password, $required_only = false ) {
131
132        $this->password = $password;
133        $results        = $this->run_tests( $this->list_tests(), $required_only );
134
135        // If we've failed on the required tests, return now.
136        if ( ! empty( $results['failed'] ) ) {
137            return array(
138                'passed'       => false,
139                'test_results' => $results,
140            );
141        }
142
143        /**
144         * Filters Jetpack's password strength enforcement settings. You can modify the minimum
145         * entropy bits requirement using this filter.
146         *
147         * @since 7.2.0
148         *
149         * @param array $minimum_entropy_bits minimum entropy bits requirement.
150         */
151        $bits         = apply_filters( 'jetpack_password_checker_minimum_entropy_bits', self::MINIMUM_BITS );
152        $entropy_bits = $this->calculate_entropy_bits( $this->password );
153
154        // If we have failed the entropy bits test, run the regex tests so we can suggest improvements.
155        if ( $entropy_bits < $bits ) {
156            $results['failed']['entropy_bits'] = $entropy_bits;
157            $results                           = array_merge(
158                $results,
159                $this->run_tests( $this->list_tests( 'preg_match' ), false )
160            );
161        }
162
163        return( array(
164            'passed'       => empty( $results['failed'] ),
165            'test_results' => $results,
166        ) );
167    }
168
169    /**
170     * Run the tests using the currently set up object values.
171     *
172     * @param array   $tests tests to run.
173     * @param Boolean $required_only whether to run only required tests.
174     * @return array test results.
175     */
176    protected function run_tests( $tests, $required_only = false ) {
177
178        $results = array(
179            'passed' => array(),
180            'failed' => array(),
181        );
182
183        foreach ( $tests as $test_type => $section_tests ) {
184            foreach ( $section_tests as $test_name => $test_data ) {
185
186                // Skip non-required tests if required_only param is set.
187                if ( $required_only && ! $test_data['required'] ) {
188                    continue;
189                }
190
191                $test_function = 'test_' . $test_type;
192
193                $result = call_user_func( array( $this, $test_function ), $test_data );
194
195                if ( $result ) {
196                    $results['passed'][] = array( 'test_name' => $test_name );
197                } else {
198                    $results['failed'][] = array(
199                        'test_name'   => $test_name,
200                        'explanation' => $test_data['error'],
201                    );
202
203                    if ( isset( $test_data['fail_immediately'] ) ) {
204                        return $results;
205                    }
206                }
207            }
208        }
209
210        return $results;
211    }
212
213    /**
214     * Returns a list of tests that need to be run on password strings.
215     *
216     * @param array $sections only return specific sections with the passed keys, defaults to all.
217     * @return array test descriptions.
218     */
219    protected function list_tests( $sections = false ) {
220        // Note: these should be in order of priority.
221        $tests = array(
222            'preg_match'      => array(
223                'no_backslashes'   => array(
224                    'pattern'          => '^[^\\\\]*$',
225                    'error'            => __( 'Passwords may not contain the character "\".', 'jetpack' ),
226                    'required'         => true,
227                    'fail_immediately' => true,
228                ),
229                'minimum_length'   => array(
230                    'pattern'          => '^.{' . $this->min_password_length . ',}',
231                    /* translators: %d is a number of characters in the password. */
232                    'error'            => sprintf( __( 'Password must be at least %d characters.', 'jetpack' ), $this->min_password_length ),
233                    'required'         => true,
234                    'fail_immediately' => true,
235                ),
236                'has_mixed_case'   => array(
237                    'pattern'  => '([a-z].*?[A-Z]|[A-Z].*?[a-z])',
238                    'error'    => __( 'This password is too easy to guess: you can improve it by adding additional uppercase letters, lowercase letters, or numbers.', 'jetpack' ),
239                    'trim'     => true,
240                    'required' => false,
241                ),
242                'has_digit'        => array(
243                    'pattern'  => '\d',
244                    'error'    => __( 'This password is too easy to guess: you can improve it by mixing both letters and numbers.', 'jetpack' ),
245                    'trim'     => false,
246                    'required' => false,
247                ),
248                'has_special_char' => array(
249                    'pattern'  => '[^a-zA-Z\d]',
250                    'error'    => __( 'This password is too easy to guess: you can improve it by including special characters such as !#=?*&.', 'jetpack' ),
251                    'required' => false,
252                ),
253            ),
254            'compare_to_list' => array(
255                'not_a_common_password'       => array(
256                    'list_callback'    => 'get_common_passwords',
257                    'compare_callback' => 'negative_in_array',
258                    'error'            => __( 'This is a very common password. Choose something that will be harder for others to guess.', 'jetpack' ),
259                    'required'         => true,
260                ),
261                'not_same_as_other_user_data' => array(
262                    'list_callback'    => 'get_other_user_data',
263                    'compare_callback' => 'test_not_same_as_other_user_data',
264                    'error'            => __( 'Your password is too weak: Looks like you\'re including easy to guess information about yourself. Try something a little more unique.', 'jetpack' ),
265                    'required'         => true,
266                ),
267            ),
268        );
269
270        /**
271         * Filters Jetpack's password strength enforcement settings. You can determine the tests run
272         * and their order based on whatever criteria you wish to specify.
273         *
274         * @since 7.2.0
275         *
276         * @param array $minimum_entropy_bits minimum entropy bits requirement.
277         */
278        $tests = apply_filters( 'jetpack_password_checker_tests', $tests );
279
280        if ( ! $sections ) {
281            return $tests;
282        }
283
284        $sections = (array) $sections;
285        return array_intersect_key( $tests, array_flip( $sections ) );
286    }
287
288    /**
289     * Provides the regular expression tester functionality.
290     *
291     * @param array $test_data the current test data.
292     * @return Boolean does the test pass?
293     */
294    protected function test_preg_match( $test_data ) {
295        $password = stripslashes( $this->password );
296
297        if ( isset( $test_data['trim'] ) ) {
298            $password = substr( $password, 1, -1 );
299        }
300
301        if ( ! preg_match( '/' . $test_data['pattern'] . '/u', $password ) ) {
302            return false;
303        }
304
305        return true;
306    }
307
308    /**
309     * Provides the comparison tester functionality.
310     *
311     * @param array $test_data the current test data.
312     * @return Boolean does the test pass?
313     */
314    protected function test_compare_to_list( $test_data ) {
315        $list_callback    = $test_data['list_callback'];
316        $compare_callback = $test_data['compare_callback'];
317
318        if (
319            ! is_callable( array( $this, $list_callback ) )
320            || ! is_callable( array( $this, $compare_callback ) )
321        ) {
322            return false;
323        }
324
325        $list = call_user_func( array( $this, $list_callback ) );
326        if ( empty( $list ) ) {
327            return true;
328        }
329
330        return call_user_func( array( $this, $compare_callback ), $this->password, $list );
331    }
332
333    /**
334     * Getter for the common password list.
335     *
336     * @return array common passwords.
337     */
338    protected function get_common_passwords() {
339        return $this->common_passwords;
340    }
341
342    /**
343     * Returns the widely known user data that cannot be used in the password to avoid
344     * predictable strings.
345     *
346     * @return array user data.
347     */
348    protected function get_other_user_data() {
349
350        if ( ! isset( $this->user ) ) {
351            $user_data = get_userdata( $this->user_id );
352
353            $first_name = get_user_meta( $user_data->ID, 'first_name', true );
354            $last_name  = get_user_meta( $user_data->ID, 'last_name', true );
355            $nickname   = get_user_meta( $user_data->ID, 'nickname', true );
356
357            $this->add_user_strings_to_test( $nickname );
358            $this->add_user_strings_to_test( $user_data->user_nicename );
359            $this->add_user_strings_to_test( $user_data->display_name );
360        } else {
361            $user_data = $this->user;
362
363            $first_name = $user_data->first_name;
364            $last_name  = $user_data->last_name;
365        }
366        $email_username = substr( $user_data->user_email, 0, strpos( $user_data->user_email, '@' ) );
367
368        $this->add_user_strings_to_test( $user_data->user_email );
369        $this->add_user_strings_to_test( $email_username, '.' );
370        $this->add_user_strings_to_test( $first_name );
371        $this->add_user_strings_to_test( $last_name );
372
373        return $this->user_strings_to_test;
374    }
375
376    /**
377     * Compare the password for matches with known user data.
378     *
379     * @param String $password the string to be tested.
380     * @param array  $strings_to_test known user data.
381     * @return Boolean does the test pass?
382     */
383    protected function test_not_same_as_other_user_data( $password, $strings_to_test ) {
384        $password_lowercase = strtolower( $password );
385        foreach ( array_unique( $strings_to_test ) as $string ) {
386            if ( empty( $string ) ) {
387                continue;
388            }
389
390            $string          = strtolower( $string );
391            $string_reversed = strrev( $string );
392
393            if ( $password_lowercase === $string || $password_lowercase === $string_reversed ) {
394                return false;
395            }
396
397            // Also check for the string or reversed string with any numbers just stuck to the end to catch things like bob123 as passwords.
398            if (
399                preg_match( '/^' . preg_quote( $string, '/' ) . '\d+$/', $password_lowercase )
400                || preg_match( '/^' . preg_quote( $string_reversed, '/' ) . '\d+$/', $password_lowercase )
401            ) {
402                return false;
403            }
404        }
405        return true;
406    }
407
408    /**
409     * A shorthand for the not in array construct.
410     *
411     * @param Mixed $needle the needle.
412     * @param array $haystack the haystack.
413     * @return bool is the needle not in the haystack?
414     */
415    protected function negative_in_array( $needle, $haystack ) {
416        if ( in_array( $needle, $haystack, true ) ) {
417            return false;
418        }
419
420        return true;
421    }
422
423    /**
424     * A helper function used to break a single string into its constituents so
425     * that both the full string and its constituents and any variants thereof
426     * can be tested against the password.
427     *
428     * @param String $string the string to be broken down.
429     * @param String $explode_delimiter delimiter.
430     * @return NULL|Array array of fragments, or NULL on empty string.
431     */
432    protected function add_user_strings_to_test( $string, $explode_delimiter = ' ' ) {
433
434        // Don't check against empty strings.
435        if ( empty( $string ) ) {
436            return;
437        }
438
439        $strings = explode( $explode_delimiter, $string );
440
441        // Remove any non alpha numeric characters from the strings to check against.
442        foreach ( $strings as $key => $_string ) {
443            $strings[ $key ] = preg_replace( '/[^a-zA-Z0-9]/', '', $_string );
444        }
445
446        // Check the original too.
447        $strings[] = $string;
448
449        // Check the original minus non alpha numeric characters.
450        $strings[] = preg_replace( '/[^a-zA-Z0-9]/', '', $string );
451
452        // Remove any empty strings.
453        $strings                    = array_filter( $strings );
454        $this->user_strings_to_test = array_merge( $this->user_strings_to_test, $strings );
455    }
456
457    /**
458     * Return a character set size that is used in the string.
459     *
460     * @param String $password the password.
461     * @return Integer number of different character sets in use.
462     */
463    protected function get_charset_size( $password ) {
464        $size = 0;
465
466        // Lowercase a-z.
467        if ( preg_match( '/[a-z]/', $password ) ) {
468            $size += 26;
469        }
470
471        // Uppercase A-Z.
472        if ( preg_match( '/[A-Z]/', substr( $password, 1, -1 ) ) ) {
473            $size += 26;
474        }
475
476        // Digits.
477        if ( preg_match( '/\d/', substr( $password, 1, -1 ) ) ) {
478            $size += 10;
479        }
480
481        // Over digits symbols.
482        if ( preg_match( '/[!|@|#|$|%|^|&|*|(|)]/', $password ) ) {
483            $size += 10;
484        }
485
486        // Other symbols.
487        if ( preg_match( '#[`|~|-|_|=|+|\[|{|\]|}|\\|\|;:\'",<\.>/\?]#', $password ) ) {
488            $size += 20;
489        }
490
491        // Spaces.
492        if ( strpos( $password, ' ' ) ) {
493            ++$size;
494        }
495
496        return $size;
497    }
498
499    /**
500     * Shorthand for getting a character index.
501     *
502     * @param String $char character.
503     * @return Integer the character code.
504     */
505    protected function get_char_index( $char ) {
506        $char = strtolower( $char[0] );
507        if ( $char < 'a' || $char > 'z' ) {
508            return 0;
509        } else {
510            return ord( $char[0] ) - ord( 'a' ) + 1;
511        }
512    }
513
514    /**
515     * This is the password strength calculation algorithm, based on the formula H = L(logN/log2).
516     *
517     * H = Entropy
518     * L = String length (the for iterator)
519     * N = Our charset size, via get_charset_size()
520     *
521     * @see https://en.wikipedia.org/wiki/Password_strength#Random_passwords
522     *
523     * On top of the base formula, we're also multiplying the bits of entropy for every char
524     * by 1 - (the probabily of it following the previous char)
525     * i.e.: the probablity of U following Q is ~0.84. If our password contains this pair of characters,
526     * the u char will only add ( 0.16^2 * charset_score ) to our total of entropy bits.
527     *
528     * @param String $password the password.
529     */
530    protected function calculate_entropy_bits( $password ) {
531        $bits          = 0;
532        $charset_score = log( $this->get_charset_size( $password ) ) / log( 2 );
533
534        $aidx   = $this->get_char_index( $password[0] );
535        $length = strlen( $password );
536
537        for ( $b = 1; $b < $length; $b++ ) {
538            $bidx = $this->get_char_index( $password[ $b ] );
539
540            // 27 = number of chars in the index (a-z,' ').
541            $c     = 1.0 - $this->frequency_table[ $aidx * 27 + $bidx ];
542            $bits += $charset_score * $c * $c;
543
544            // Move on to next pair.
545            $aidx = $bidx;
546        }
547
548        return $bits;
549    }
550
551    /**
552     * A frequency table of character pairs, starting with  '  ' then  ' a', ' b' [...] , 'a ', 'aa' etc.
553     *
554     * @see http://rumkin.com/tools/password/passchk.php
555     * @var Array
556     */
557    public $frequency_table = array(
558        0.23653710453418866,
559        0.04577693541332556,
560        0.03449832337075375,
561        0.042918209651552706,
562        0.037390873305146524,
563        0.028509112115468728,
564        0.02350896632162123,
565        0.022188657238664526,
566        0.028429800262428927,
567        0.04357019973757107,
568        0.00913602565971716,
569        0.03223093745443942,
570        0.02235311269864412,
571        0.04438081352966905,
572        0.04512377897652719,
573        0.020055401662049863,
574        0.055903192885260244,
575        0.0024388394809739026,
576        0.035207464644991984,
577        0.07355941099285611,
578        0.036905671380667734,
579        0.026134421927394666,
580        0.023787724158040528,
581        0.011352092141711621,
582        0.0032354570637119114,
583        0.005986878553725033,
584        0.008861933226417843,
585        0.11511532293337222,
586        0.027556203528211108,
587        0.024331243621519172,
588        0.039266365359381834,
589        0.031599941682461,
590        0.014403265782183991,
591        0.015480973902901297,
592        0.027770812071730572,
593        0.00942761335471643,
594        0.039872867764980315,
595        0.0078122175244204695,
596        0.02808456043154979,
597        0.08429100451960927,
598        0.04688963405744277,
599        0.13831170724595424,
600        0.002540311998833649,
601        0.025211838460416972,
602        0.001543082081936142,
603        0.09519638431258201,
604        0.061845750109345385,
605        0.08907071001603732,
606        0.02137571074500656,
607        0.027093162268552268,
608        0.005521504592506197,
609        0.003023181221752442,
610        0.007086747339262283,
611        0.010262720513194342,
612        0.08785070710016038,
613        0.14617757690625455,
614        0.03417291150313457,
615        0.0059635515381250915,
616        0.006146668610584633,
617        0.195202799241872,
618        0.002774748505613063,
619        0.004715556203528212,
620        0.0044776206444088066,
621        0.11205481848665985,
622        0.005654468581425864,
623        0.0028820527773727946,
624        0.07383000437381543,
625        0.005516839189386207,
626        0.006496573844583759,
627        0.09843067502551392,
628        0.0027140982650532145,
629        0.0006893133109782768,
630        0.08425368129464937,
631        0.021325557661466685,
632        0.006493074792243767,
633        0.07023414491908442,
634        0.002077270739174807,
635        0.0024633328473538415,
636        0.0007744569179180639,
637        0.015413325557661468,
638        0.0011990086018370024,
639        0.13162851727657093,
640        0.10115993585070711,
641        0.0026989357049132527,
642        0.03319317684793702,
643        0.002946202070272634,
644        0.0783216212275842,
645        0.0018358361277154103,
646        0.00258813238081353,
647        0.2141688292754046,
648        0.09853681294649366,
649        0.0032482869222918796,
650        0.04359352675317102,
651        0.01993526753171016,
652        0.0036880011663507797,
653        0.008011663507799971,
654        0.12014696019827964,
655        0.0029846916460125384,
656        0.0017553579238956116,
657        0.029470185158186325,
658        0.010413179763813967,
659        0.030699518880303252,
660        0.03508499781309229,
661        0.002021285901734947,
662        0.0010613792097973467,
663        0.0005295232541186761,
664        0.009677212421635807,
665        0.010585799679253535,
666        0.17101734946785244,
667        0.07968625164018078,
668        0.007839043592360402,
669        0.005438693687126403,
670        0.0183606939787141,
671        0.2732701559994168,
672        0.004953491762647616,
673        0.007259367254701851,
674        0.008104971570199739,
675        0.13274588132380813,
676        0.004210526315789474,
677        0.004997813092287506,
678        0.017006560723137484,
679        0.007442484327161393,
680        0.016789619478058026,
681        0.08477737279486806,
682        0.005106283714827234,
683        0.0005026971861787433,
684        0.04040355736987899,
685        0.037535500801866156,
686        0.00885960052485785,
687        0.0336410555474559,
688        0.007066919376002332,
689        0.005344219273946639,
690        0.0006333284735384167,
691        0.010684939495553289,
692        0.0063064586674442345,
693        0.15386849394955532,
694        0.015049424114302375,
695        0.012162705933809595,
696        0.020425134859308938,
697        0.037366379938766583,
698        0.02157165767604607,
699        0.009373961218836564,
700        0.0173214754337367,
701        0.009616562181075958,
702        0.029522670943286193,
703        0.010154249890654615,
704        0.018600962239393497,
705        0.06362210234728094,
706        0.03157078291296107,
707        0.151603440734801,
708        0.0062329785683044175,
709        0.014775331681003062,
710        0.0020854351946347867,
711        0.1826342032366234,
712        0.0878017203674005,
713        0.054190989940224525,
714        0.010329202507654177,
715        0.012763376585508092,
716        0.0064872430383437815,
717        0.006381105117364048,
718        0.005388540603586529,
719        0.0090800408222773,
720        0.09611196967487973,
721        0.09940691062837148,
722        0.01033969966467415,
723        0.004034407348009914,
724        0.008826942703017933,
725        0.11474675608689314,
726        0.07132584924916169,
727        0.012388977985129028,
728        0.005435194634786413,
729        0.1417174515235457,
730        0.0037066627788307337,
731        0.0045802595130485495,
732        0.060800699810468,
733        0.005341886572386646,
734        0.005683627350925791,
735        0.12434932205860913,
736        0.004596588423968508,
737        0.0007534626038781163,
738        0.07107041842834232,
739        0.022361277154104096,
740        0.04784720804782038,
741        0.06277533168100306,
742        0.003441901151771395,
743        0.005828254847645429,
744        0.0009669047966175828,
745        0.009470768333576322,
746        0.002077270739174807,
747        0.12797667298440007,
748        0.08797783933518005,
749        0.005388540603586529,
750        0.0024913252660737715,
751        0.007550954949701123,
752        0.2786866890217233,
753        0.002509986878553725,
754        0.029002478495407494,
755        0.0303204548768042,
756        0.07576614666861058,
757        0.00246799825047383,
758        0.00592389561160519,
759        0.039574281965301064,
760        0.00706808572678233,
761        0.03304505029887739,
762        0.05474150750838315,
763        0.0028633911648928414,
764        0.0005073625892987316,
765        0.07293541332555767,
766        0.053528502697186175,
767        0.022566554891383584,
768        0.038151334013704616,
769        0.002716430966613209,
770        0.005049132526607377,
771        0.0009902318122175246,
772        0.008997229916897508,
773        0.0011861787432570347,
774        0.1666377022889634,
775        0.14414462749671964,
776        0.003374252806531564,
777        0.005169266656947077,
778        0.008468873013558828,
779        0.16337541915731155,
780        0.002873888321912815,
781        0.004305000728969237,
782        0.0031141565825922144,
783        0.1241172182533897,
784        0.0052800699810468,
785        0.008969237498177577,
786        0.024094474413179766,
787        0.017029887738737422,
788        0.01722700102055693,
789        0.10618457501093455,
790        0.006147834961364631,
791        0.0008269427030179326,
792        0.03303571949263741,
793        0.024188948826359528,
794        0.05213937891820965,
795        0.04505846333284735,
796        0.0035270447587111824,
797        0.006799825047383001,
798        0.0008199445983379502,
799        0.02206735675754483,
800        0.001010059775477475,
801        0.11971191135734072,
802        0.04656538854060359,
803        0.011243621519171892,
804        0.06513019390581717,
805        0.032375564951159064,
806        0.06347047674588133,
807        0.013678961947805804,
808        0.03309870243475726,
809        0.006982942119842543,
810        0.009726199154395685,
811        0.010121592068814697,
812        0.032514360693978714,
813        0.04986032949409535,
814        0.039734072022160664,
815        0.15690683773144773,
816        0.03949963551538125,
817        0.014790494241143023,
818        0.002722262720513194,
819        0.02614375273363464,
820        0.10753637556495116,
821        0.06764834523983088,
822        0.006221315060504448,
823        0.021317393206006705,
824        0.0030826651115322934,
825        0.002399183554454002,
826        0.0019069835252952323,
827        0.015595276279341012,
828        0.0925126111678087,
829        0.18437906400349907,
830        0.006538562472663654,
831        0.008719638431258201,
832        0.02116693395538708,
833        0.18241376293920394,
834        0.007290858725761773,
835        0.005976381396705059,
836        0.005629975215045925,
837        0.09721300481119698,
838        0.004810030616707975,
839        0.024303251202799244,
840        0.012954658113427612,
841        0.011057005394372358,
842        0.02733459688001166,
843        0.10135121737862662,
844        0.012016912086309959,
845        0.001055547455897361,
846        0.009027555037177431,
847        0.07162326869806095,
848        0.01007143898527482,
849        0.07297623560285756,
850        0.006741507508383147,
851        0.0036891675171307776,
852        0.0008409389123778977,
853        0.011272780288671819,
854        0.007020265344802449,
855        0.1030389269572824,
856        0.15350809155853623,
857        0.004232686980609419,
858        0.004353987461729115,
859        0.0023385333138941536,
860        0.14450386353695874,
861        0.002546143752733635,
862        0.0024470039364338824,
863        0.01200758128006998,
864        0.0981227584195947,
865        0.003161976964572095,
866        0.040695145064878264,
867        0.03460446129173349,
868        0.003908441463770229,
869        0.01598483743986004,
870        0.13107216795451232,
871        0.003129319142732177,
872        0.00032307916605919226,
873        0.04050386353695874,
874        0.05452689896486368,
875        0.03589677795597026,
876        0.07087097244496282,
877        0.006143169558244642,
878        0.008684647907858289,
879        0.0004607085580988482,
880        0.022010205569324977,
881        0.0009097536083977258,
882        0.07328765126111678,
883        0.14751421490013122,
884        0.008015162560139961,
885        0.006601545414783497,
886        0.025279486805656802,
887        0.1682449336637994,
888        0.008313748359819215,
889        0.007010934538562473,
890        0.005886572386645284,
891        0.16889575739903775,
892        0.004123050007289692,
893        0.011925936725470185,
894        0.10007289692374982,
895        0.013380376148126549,
896        0.009021723283277445,
897        0.08650823735238372,
898        0.007756232686980609,
899        0.0007243038343781893,
900        0.0026791077416533026,
901        0.02797492345823006,
902        0.032384895757399036,
903        0.04187432570345531,
904        0.00882461000145794,
905        0.0032401224668318998,
906        0.00033357632307916605,
907        0.027878116343490307,
908        0.0022277299897944304,
909        0.14333518005540166,
910        0.1725534334451086,
911        0.02781629975215046,
912        0.006909462020702727,
913        0.005264907420906838,
914        0.16661437527336345,
915        0.004325995043009185,
916        0.003334596880011664,
917        0.005312727802886718,
918        0.14024668318996938,
919        0.0013261408368566844,
920        0.003504884093891238,
921        0.006375273363464061,
922        0.04964922000291588,
923        0.008290421344219274,
924        0.09536783787724158,
925        0.05394372357486515,
926        0.005505175681586237,
927        0.005339553870826651,
928        0.01782067356757545,
929        0.006710016037323225,
930        0.05105933809593235,
931        0.002983525295232541,
932        0.002940370316372649,
933        0.0004548768041988629,
934        0.01208456043154979,
935        0.000915585362297711,
936        0.20146260387811635,
937        0.067196967487972,
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1287    );
1288}