xref: /dokuwiki/vendor/simplepie/simplepie/src/Misc.php (revision 8e88a29b81301f78509349ab1152bb09c229123e) 
1<?php
2
3// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
4// SPDX-License-Identifier: BSD-3-Clause
5
6declare(strict_types=1);
7
8namespace SimplePie;
9
10use SimplePie\XML\Declaration\Parser;
11
12/**
13 * Miscellaneous utilities
14 */
15class Misc
16{
17    /** @var int|null */
18    private static $SIMPLEPIE_BUILD = null;
19
20    /**
21     * @return string
22     */
23    public static function time_hms(int $seconds)
24    {
25        $time = '';
26
27        $hours = floor($seconds / 3600);
28        $remainder = $seconds % 3600;
29        if ($hours > 0) {
30            $time .= $hours.':';
31        }
32
33        $minutes = floor($remainder / 60);
34        $seconds = $remainder % 60;
35        if ($minutes < 10 && $hours > 0) {
36            $minutes = '0' . $minutes;
37        }
38        if ($seconds < 10) {
39            $seconds = '0' . $seconds;
40        }
41
42        $time .= $minutes.':';
43        $time .= $seconds;
44
45        return $time;
46    }
47
48    /**
49     * @return string|false
50     */
51    public static function absolutize_url(string $relative, string $base)
52    {
53        $iri = \SimplePie\IRI::absolutize(new \SimplePie\IRI($base), $relative);
54        if ($iri === false) {
55            return false;
56        }
57        return $iri->get_uri();
58    }
59
60    /**
61     * @internal
62     */
63    public static function is_remote_uri(string $uri): bool
64    {
65        return preg_match('/^https?:\/\//i', $uri) === 1;
66    }
67
68    /**
69     * Get a HTML/XML element from a HTML string
70     *
71     * @deprecated since SimplePie 1.3, use DOMDocument instead (parsing HTML with regex is bad!)
72     * @param string $realname Element name (including namespace prefix if applicable)
73     * @param string $string HTML document
74     * @return array<array{tag: string, self_closing: bool, attribs: array<string, array{data: string}>, content?: string}>
75     */
76    public static function get_element(string $realname, string $string)
77    {
78        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
79
80        $return = [];
81        $name = preg_quote($realname, '/');
82        if (preg_match_all("/<($name)" . \SimplePie\SimplePie::PCRE_HTML_ATTRIBUTE . "(>(.*)<\/$name>|(\/)?>)/siU", $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE)) {
83            for ($i = 0, $total_matches = count($matches); $i < $total_matches; $i++) {
84                $return[$i]['tag'] = $realname;
85                $return[$i]['full'] = $matches[$i][0][0];
86                $return[$i]['offset'] = $matches[$i][0][1];
87                if (strlen($matches[$i][3][0]) <= 2) {
88                    $return[$i]['self_closing'] = true;
89                } else {
90                    $return[$i]['self_closing'] = false;
91                    $return[$i]['content'] = $matches[$i][4][0];
92                }
93                $return[$i]['attribs'] = [];
94                if (isset($matches[$i][2][0]) && preg_match_all('/[\x09\x0A\x0B\x0C\x0D\x20]+([^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*)(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"([^"]*)"|\'([^\']*)\'|([^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?/', ' ' . $matches[$i][2][0] . ' ', $attribs, PREG_SET_ORDER)) {
95                    foreach ($attribs as $attrib) {
96                        if (count($attrib) === 2) {
97                            $attrib[2] = $attrib[1];
98                        }
99                        $return[$i]['attribs'][strtolower($attrib[1])]['data'] = Misc::entities_decode(end($attrib));
100                    }
101                }
102            }
103        }
104        return $return;
105    }
106
107    /**
108     * @deprecated since SimplePie 1.9.0. If you need it, you can copy the function to your codebase. But you should consider using `DOMDocument` for any DOM wrangling.
109     * @param array{tag: string, self_closing: bool, attribs: array<string, array{data: string}>, content: string} $element
110     * @return string
111     */
112    public static function element_implode(array $element)
113    {
114        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.9.'), \E_USER_DEPRECATED);
115
116        $full = "<{$element['tag']}";
117        foreach ($element['attribs'] as $key => $value) {
118            $key = strtolower($key);
119            $full .= " $key=\"" . htmlspecialchars($value['data'], ENT_COMPAT, 'UTF-8') . '"';
120        }
121        if ($element['self_closing']) {
122            $full .= ' />';
123        } else {
124            $full .= ">{$element['content']}</{$element['tag']}>";
125        }
126        return $full;
127    }
128
129    /**
130     * @param string $message
131     * @param int $level
132     * @param string $file
133     * @param int $line
134     * @return string
135     */
136    public static function error(string $message, int $level, string $file, int $line)
137    {
138        if ((error_reporting() & $level) > 0) {
139            switch ($level) {
140                case E_USER_ERROR:
141                    $note = 'PHP Error';
142                    break;
143                case E_USER_WARNING:
144                    $note = 'PHP Warning';
145                    break;
146                case E_USER_NOTICE:
147                    $note = 'PHP Notice';
148                    break;
149                default:
150                    $note = 'Unknown Error';
151                    break;
152            }
153
154            $log_error = true;
155            if (!function_exists('error_log')) {
156                $log_error = false;
157            }
158
159            $log_file = @ini_get('error_log');
160            if (!empty($log_file) && ('syslog' !== $log_file) && !@is_writable($log_file)) {
161                $log_error = false;
162            }
163
164            if ($log_error) {
165                @error_log("$note: $message in $file on line $line", 0);
166            }
167        }
168
169        return $message;
170    }
171
172    /**
173     * @return string
174     */
175    public static function fix_protocol(string $url, int $http = 1)
176    {
177        $url = Misc::normalize_url($url);
178        $parsed = Misc::parse_url($url);
179        if ($parsed['scheme'] !== '' && $parsed['scheme'] !== 'http' && $parsed['scheme'] !== 'https') {
180            return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);
181        }
182
183        if ($parsed['scheme'] === '' && $parsed['authority'] === '' && !file_exists($url)) {
184            return Misc::fix_protocol(Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);
185        }
186
187        if ($http === 2 && $parsed['scheme'] !== '') {
188            return "feed:$url";
189        } elseif ($http === 3 && strtolower($parsed['scheme']) === 'http') {
190            return substr_replace($url, 'podcast', 0, 4);
191        } elseif ($http === 4 && strtolower($parsed['scheme']) === 'http') {
192            return substr_replace($url, 'itpc', 0, 4);
193        }
194
195        return $url;
196    }
197
198    /**
199     * @deprecated since SimplePie 1.8.0, use PHP native array_replace_recursive() instead.
200     * @param array<mixed> $array1
201     * @param array<mixed> $array2
202     * @return array<mixed>
203     */
204    public static function array_merge_recursive(array $array1, array $array2)
205    {
206        foreach ($array2 as $key => $value) {
207            if (is_array($value)) {
208                $array1[$key] = Misc::array_merge_recursive($array1[$key], $value);
209            } else {
210                $array1[$key] = $value;
211            }
212        }
213
214        return $array1;
215    }
216
217    /**
218     * @return array<string, string>
219     */
220    public static function parse_url(string $url)
221    {
222        $iri = new \SimplePie\IRI($url);
223        return [
224            'scheme' => (string) $iri->scheme,
225            'authority' => (string) $iri->authority,
226            'path' => (string) $iri->path,
227            'query' => (string) $iri->query,
228            'fragment' => (string) $iri->fragment
229        ];
230    }
231
232    /**
233     * @return string
234     */
235    public static function compress_parse_url(string $scheme = '', string $authority = '', string $path = '', string $query = '', ?string $fragment = '')
236    {
237        $iri = new \SimplePie\IRI('');
238        $iri->scheme = $scheme;
239        $iri->authority = $authority;
240        $iri->path = $path;
241        $iri->query = $query;
242        $iri->fragment = $fragment;
243        return $iri->get_uri();
244    }
245
246    /**
247     * @return string
248     */
249    public static function normalize_url(string $url)
250    {
251        $iri = new \SimplePie\IRI($url);
252        return $iri->get_uri();
253    }
254
255    /**
256     * @deprecated since SimplePie 1.9.0. This functionality is part of `IRI` – if you need it standalone, consider copying the function to your codebase.
257     * @param array<int, string> $match
258     * @return string
259     */
260    public static function percent_encoding_normalization(array $match)
261    {
262        $integer = hexdec($match[1]);
263        if ($integer >= 0x41 && $integer <= 0x5A || $integer >= 0x61 && $integer <= 0x7A || $integer >= 0x30 && $integer <= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E) {
264            // Cast for PHPStan, the value would only be float when above PHP_INT_MAX, which would not go in this branch.
265            return chr((int) $integer);
266        }
267
268        return strtoupper($match[0]);
269    }
270
271    /**
272     * Converts a Windows-1252 encoded string to a UTF-8 encoded string
273     *
274     * @static
275     * @param string $string Windows-1252 encoded string
276     * @return string UTF-8 encoded string
277     */
278    public static function windows_1252_to_utf8(string $string)
279    {
280        static $convert_table = ["\x80" => "\xE2\x82\xAC", "\x81" => "\xEF\xBF\xBD", "\x82" => "\xE2\x80\x9A", "\x83" => "\xC6\x92", "\x84" => "\xE2\x80\x9E", "\x85" => "\xE2\x80\xA6", "\x86" => "\xE2\x80\xA0", "\x87" => "\xE2\x80\xA1", "\x88" => "\xCB\x86", "\x89" => "\xE2\x80\xB0", "\x8A" => "\xC5\xA0", "\x8B" => "\xE2\x80\xB9", "\x8C" => "\xC5\x92", "\x8D" => "\xEF\xBF\xBD", "\x8E" => "\xC5\xBD", "\x8F" => "\xEF\xBF\xBD", "\x90" => "\xEF\xBF\xBD", "\x91" => "\xE2\x80\x98", "\x92" => "\xE2\x80\x99", "\x93" => "\xE2\x80\x9C", "\x94" => "\xE2\x80\x9D", "\x95" => "\xE2\x80\xA2", "\x96" => "\xE2\x80\x93", "\x97" => "\xE2\x80\x94", "\x98" => "\xCB\x9C", "\x99" => "\xE2\x84\xA2", "\x9A" => "\xC5\xA1", "\x9B" => "\xE2\x80\xBA", "\x9C" => "\xC5\x93", "\x9D" => "\xEF\xBF\xBD", "\x9E" => "\xC5\xBE", "\x9F" => "\xC5\xB8", "\xA0" => "\xC2\xA0", "\xA1" => "\xC2\xA1", "\xA2" => "\xC2\xA2", "\xA3" => "\xC2\xA3", "\xA4" => "\xC2\xA4", "\xA5" => "\xC2\xA5", "\xA6" => "\xC2\xA6", "\xA7" => "\xC2\xA7", "\xA8" => "\xC2\xA8", "\xA9" => "\xC2\xA9", "\xAA" => "\xC2\xAA", "\xAB" => "\xC2\xAB", "\xAC" => "\xC2\xAC", "\xAD" => "\xC2\xAD", "\xAE" => "\xC2\xAE", "\xAF" => "\xC2\xAF", "\xB0" => "\xC2\xB0", "\xB1" => "\xC2\xB1", "\xB2" => "\xC2\xB2", "\xB3" => "\xC2\xB3", "\xB4" => "\xC2\xB4", "\xB5" => "\xC2\xB5", "\xB6" => "\xC2\xB6", "\xB7" => "\xC2\xB7", "\xB8" => "\xC2\xB8", "\xB9" => "\xC2\xB9", "\xBA" => "\xC2\xBA", "\xBB" => "\xC2\xBB", "\xBC" => "\xC2\xBC", "\xBD" => "\xC2\xBD", "\xBE" => "\xC2\xBE", "\xBF" => "\xC2\xBF", "\xC0" => "\xC3\x80", "\xC1" => "\xC3\x81", "\xC2" => "\xC3\x82", "\xC3" => "\xC3\x83", "\xC4" => "\xC3\x84", "\xC5" => "\xC3\x85", "\xC6" => "\xC3\x86", "\xC7" => "\xC3\x87", "\xC8" => "\xC3\x88", "\xC9" => "\xC3\x89", "\xCA" => "\xC3\x8A", "\xCB" => "\xC3\x8B", "\xCC" => "\xC3\x8C", "\xCD" => "\xC3\x8D", "\xCE" => "\xC3\x8E", "\xCF" => "\xC3\x8F", "\xD0" => "\xC3\x90", "\xD1" => "\xC3\x91", "\xD2" => "\xC3\x92", "\xD3" => "\xC3\x93", "\xD4" => "\xC3\x94", "\xD5" => "\xC3\x95", "\xD6" => "\xC3\x96", "\xD7" => "\xC3\x97", "\xD8" => "\xC3\x98", "\xD9" => "\xC3\x99", "\xDA" => "\xC3\x9A", "\xDB" => "\xC3\x9B", "\xDC" => "\xC3\x9C", "\xDD" => "\xC3\x9D", "\xDE" => "\xC3\x9E", "\xDF" => "\xC3\x9F", "\xE0" => "\xC3\xA0", "\xE1" => "\xC3\xA1", "\xE2" => "\xC3\xA2", "\xE3" => "\xC3\xA3", "\xE4" => "\xC3\xA4", "\xE5" => "\xC3\xA5", "\xE6" => "\xC3\xA6", "\xE7" => "\xC3\xA7", "\xE8" => "\xC3\xA8", "\xE9" => "\xC3\xA9", "\xEA" => "\xC3\xAA", "\xEB" => "\xC3\xAB", "\xEC" => "\xC3\xAC", "\xED" => "\xC3\xAD", "\xEE" => "\xC3\xAE", "\xEF" => "\xC3\xAF", "\xF0" => "\xC3\xB0", "\xF1" => "\xC3\xB1", "\xF2" => "\xC3\xB2", "\xF3" => "\xC3\xB3", "\xF4" => "\xC3\xB4", "\xF5" => "\xC3\xB5", "\xF6" => "\xC3\xB6", "\xF7" => "\xC3\xB7", "\xF8" => "\xC3\xB8", "\xF9" => "\xC3\xB9", "\xFA" => "\xC3\xBA", "\xFB" => "\xC3\xBB", "\xFC" => "\xC3\xBC", "\xFD" => "\xC3\xBD", "\xFE" => "\xC3\xBE", "\xFF" => "\xC3\xBF"];
281
282        return strtr($string, $convert_table);
283    }
284
285    /**
286     * Change a string from one encoding to another
287     *
288     * @param string $data Raw data in $input encoding
289     * @param string $input Encoding of $data
290     * @param string $output Encoding you want
291     * @return string|false False if we can't convert it
292     */
293    public static function change_encoding(string $data, string $input, string $output)
294    {
295        $input = Misc::encoding($input);
296        $output = Misc::encoding($output);
297
298        // We fail to fail on non US-ASCII bytes
299        if ($input === 'US-ASCII') {
300            static $non_ascii_octets = '';
301            if (!$non_ascii_octets) {
302                for ($i = 0x80; $i <= 0xFF; $i++) {
303                    $non_ascii_octets .= chr($i);
304                }
305            }
306            $data = substr($data, 0, strcspn($data, $non_ascii_octets));
307        }
308
309        // This is first, as behaviour of this is completely predictable
310        if ($input === 'windows-1252' && $output === 'UTF-8') {
311            return Misc::windows_1252_to_utf8($data);
312        }
313        // This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).
314        elseif (function_exists('mb_convert_encoding') && ($return = Misc::change_encoding_mbstring($data, $input, $output))) {
315            return $return;
316        }
317        // This is third, as behaviour of this varies with OS userland and PHP version
318        elseif (function_exists('iconv') && ($return = Misc::change_encoding_iconv($data, $input, $output))) {
319            return $return;
320        }
321        // This is last, as behaviour of this varies with OS userland and PHP version
322        elseif (class_exists('\UConverter') && ($return = Misc::change_encoding_uconverter($data, $input, $output))) {
323            return $return;
324        }
325
326        // If we can't do anything, just fail
327        return false;
328    }
329
330    /**
331     * @return string|false
332     */
333    protected static function change_encoding_mbstring(string $data, string $input, string $output)
334    {
335        if ($input === 'windows-949') {
336            $input = 'EUC-KR';
337        }
338        if ($output === 'windows-949') {
339            $output = 'EUC-KR';
340        }
341        if ($input === 'Windows-31J') {
342            $input = 'SJIS';
343        }
344        if ($output === 'Windows-31J') {
345            $output = 'SJIS';
346        }
347
348        // Check that the encoding is supported
349        if (!in_array($input, mb_list_encodings())) {
350            return false;
351        }
352
353        if (@mb_convert_encoding("\x80", 'UTF-16BE', $input) === "\x00\x80") {
354            return false;
355        }
356
357        // Let's do some conversion
358        if ($return = @mb_convert_encoding($data, $output, $input)) {
359            return $return;
360        }
361
362        return false;
363    }
364
365    /**
366     * @return string|false
367     */
368    protected static function change_encoding_iconv(string $data, string $input, string $output)
369    {
370        return @iconv($input, $output, $data);
371    }
372
373    /**
374     * @return string|false
375     */
376    protected static function change_encoding_uconverter(string $data, string $input, string $output)
377    {
378        return @\UConverter::transcode($data, $output, $input);
379    }
380
381    /**
382     * Normalize an encoding name
383     *
384     * This is automatically generated by create.php
385     *
386     * To generate it, run `php create.php` on the command line, and copy the
387     * output to replace this function.
388     *
389     * @param string $charset Character set to standardise
390     * @return string Standardised name
391     */
392    public static function encoding(string $charset)
393    {
394        // Normalization from UTS #22
395        // Cast for PHPStan, the regex should not fail.
396        switch (strtolower((string) preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset))) {
397            case 'adobestandardencoding':
398            case 'csadobestandardencoding':
399                return 'Adobe-Standard-Encoding';
400
401            case 'adobesymbolencoding':
402            case 'cshppsmath':
403                return 'Adobe-Symbol-Encoding';
404
405            case 'ami1251':
406            case 'amiga1251':
407                return 'Amiga-1251';
408
409            case 'ansix31101983':
410            case 'csat5001983':
411            case 'csiso99naplps':
412            case 'isoir99':
413            case 'naplps':
414                return 'ANSI_X3.110-1983';
415
416            case 'arabic7':
417            case 'asmo449':
418            case 'csiso89asmo449':
419            case 'iso9036':
420            case 'isoir89':
421                return 'ASMO_449';
422
423            case 'big5':
424            case 'csbig5':
425                return 'Big5';
426
427            case 'big5hkscs':
428                return 'Big5-HKSCS';
429
430            case 'bocu1':
431            case 'csbocu1':
432                return 'BOCU-1';
433
434            case 'brf':
435            case 'csbrf':
436                return 'BRF';
437
438            case 'bs4730':
439            case 'csiso4unitedkingdom':
440            case 'gb':
441            case 'iso646gb':
442            case 'isoir4':
443            case 'uk':
444                return 'BS_4730';
445
446            case 'bsviewdata':
447            case 'csiso47bsviewdata':
448            case 'isoir47':
449                return 'BS_viewdata';
450
451            case 'cesu8':
452            case 'cscesu8':
453                return 'CESU-8';
454
455            case 'ca':
456            case 'csa71':
457            case 'csaz243419851':
458            case 'csiso121canadian1':
459            case 'iso646ca':
460            case 'isoir121':
461                return 'CSA_Z243.4-1985-1';
462
463            case 'csa72':
464            case 'csaz243419852':
465            case 'csiso122canadian2':
466            case 'iso646ca2':
467            case 'isoir122':
468                return 'CSA_Z243.4-1985-2';
469
470            case 'csaz24341985gr':
471            case 'csiso123csaz24341985gr':
472            case 'isoir123':
473                return 'CSA_Z243.4-1985-gr';
474
475            case 'csiso139csn369103':
476            case 'csn369103':
477            case 'isoir139':
478                return 'CSN_369103';
479
480            case 'csdecmcs':
481            case 'dec':
482            case 'decmcs':
483                return 'DEC-MCS';
484
485            case 'csiso21german':
486            case 'de':
487            case 'din66003':
488            case 'iso646de':
489            case 'isoir21':
490                return 'DIN_66003';
491
492            case 'csdkus':
493            case 'dkus':
494                return 'dk-us';
495
496            case 'csiso646danish':
497            case 'dk':
498            case 'ds2089':
499            case 'iso646dk':
500                return 'DS_2089';
501
502            case 'csibmebcdicatde':
503            case 'ebcdicatde':
504                return 'EBCDIC-AT-DE';
505
506            case 'csebcdicatdea':
507            case 'ebcdicatdea':
508                return 'EBCDIC-AT-DE-A';
509
510            case 'csebcdiccafr':
511            case 'ebcdiccafr':
512                return 'EBCDIC-CA-FR';
513
514            case 'csebcdicdkno':
515            case 'ebcdicdkno':
516                return 'EBCDIC-DK-NO';
517
518            case 'csebcdicdknoa':
519            case 'ebcdicdknoa':
520                return 'EBCDIC-DK-NO-A';
521
522            case 'csebcdices':
523            case 'ebcdices':
524                return 'EBCDIC-ES';
525
526            case 'csebcdicesa':
527            case 'ebcdicesa':
528                return 'EBCDIC-ES-A';
529
530            case 'csebcdicess':
531            case 'ebcdicess':
532                return 'EBCDIC-ES-S';
533
534            case 'csebcdicfise':
535            case 'ebcdicfise':
536                return 'EBCDIC-FI-SE';
537
538            case 'csebcdicfisea':
539            case 'ebcdicfisea':
540                return 'EBCDIC-FI-SE-A';
541
542            case 'csebcdicfr':
543            case 'ebcdicfr':
544                return 'EBCDIC-FR';
545
546            case 'csebcdicit':
547            case 'ebcdicit':
548                return 'EBCDIC-IT';
549
550            case 'csebcdicpt':
551            case 'ebcdicpt':
552                return 'EBCDIC-PT';
553
554            case 'csebcdicuk':
555            case 'ebcdicuk':
556                return 'EBCDIC-UK';
557
558            case 'csebcdicus':
559            case 'ebcdicus':
560                return 'EBCDIC-US';
561
562            case 'csiso111ecmacyrillic':
563            case 'ecmacyrillic':
564            case 'isoir111':
565            case 'koi8e':
566                return 'ECMA-cyrillic';
567
568            case 'csiso17spanish':
569            case 'es':
570            case 'iso646es':
571            case 'isoir17':
572                return 'ES';
573
574            case 'csiso85spanish2':
575            case 'es2':
576            case 'iso646es2':
577            case 'isoir85':
578                return 'ES2';
579
580            case 'cseucpkdfmtjapanese':
581            case 'eucjp':
582            case 'extendedunixcodepackedformatforjapanese':
583                return 'EUC-JP';
584
585            case 'cseucfixwidjapanese':
586            case 'extendedunixcodefixedwidthforjapanese':
587                return 'Extended_UNIX_Code_Fixed_Width_for_Japanese';
588
589            case 'gb18030':
590                return 'GB18030';
591
592            case 'chinese':
593            case 'cp936':
594            case 'csgb2312':
595            case 'csiso58gb231280':
596            case 'gb2312':
597            case 'gb231280':
598            case 'gbk':
599            case 'isoir58':
600            case 'ms936':
601            case 'windows936':
602                return 'GBK';
603
604            case 'cn':
605            case 'csiso57gb1988':
606            case 'gb198880':
607            case 'iso646cn':
608            case 'isoir57':
609                return 'GB_1988-80';
610
611            case 'csiso153gost1976874':
612            case 'gost1976874':
613            case 'isoir153':
614            case 'stsev35888':
615                return 'GOST_19768-74';
616
617            case 'csiso150':
618            case 'csiso150greekccitt':
619            case 'greekccitt':
620            case 'isoir150':
621                return 'greek-ccitt';
622
623            case 'csiso88greek7':
624            case 'greek7':
625            case 'isoir88':
626                return 'greek7';
627
628            case 'csiso18greek7old':
629            case 'greek7old':
630            case 'isoir18':
631                return 'greek7-old';
632
633            case 'cshpdesktop':
634            case 'hpdesktop':
635                return 'HP-DeskTop';
636
637            case 'cshplegal':
638            case 'hplegal':
639                return 'HP-Legal';
640
641            case 'cshpmath8':
642            case 'hpmath8':
643                return 'HP-Math8';
644
645            case 'cshppifont':
646            case 'hppifont':
647                return 'HP-Pi-font';
648
649            case 'cshproman8':
650            case 'hproman8':
651            case 'r8':
652            case 'roman8':
653                return 'hp-roman8';
654
655            case 'hzgb2312':
656                return 'HZ-GB-2312';
657
658            case 'csibmsymbols':
659            case 'ibmsymbols':
660                return 'IBM-Symbols';
661
662            case 'csibmthai':
663            case 'ibmthai':
664                return 'IBM-Thai';
665
666            case 'cp37':
667            case 'csibm37':
668            case 'ebcdiccpca':
669            case 'ebcdiccpnl':
670            case 'ebcdiccpus':
671            case 'ebcdiccpwt':
672            case 'ibm37':
673                return 'IBM037';
674
675            case 'cp38':
676            case 'csibm38':
677            case 'ebcdicint':
678            case 'ibm38':
679                return 'IBM038';
680
681            case 'cp273':
682            case 'csibm273':
683            case 'ibm273':
684                return 'IBM273';
685
686            case 'cp274':
687            case 'csibm274':
688            case 'ebcdicbe':
689            case 'ibm274':
690                return 'IBM274';
691
692            case 'cp275':
693            case 'csibm275':
694            case 'ebcdicbr':
695            case 'ibm275':
696                return 'IBM275';
697
698            case 'csibm277':
699            case 'ebcdiccpdk':
700            case 'ebcdiccpno':
701            case 'ibm277':
702                return 'IBM277';
703
704            case 'cp278':
705            case 'csibm278':
706            case 'ebcdiccpfi':
707            case 'ebcdiccpse':
708            case 'ibm278':
709                return 'IBM278';
710
711            case 'cp280':
712            case 'csibm280':
713            case 'ebcdiccpit':
714            case 'ibm280':
715                return 'IBM280';
716
717            case 'cp281':
718            case 'csibm281':
719            case 'ebcdicjpe':
720            case 'ibm281':
721                return 'IBM281';
722
723            case 'cp284':
724            case 'csibm284':
725            case 'ebcdiccpes':
726            case 'ibm284':
727                return 'IBM284';
728
729            case 'cp285':
730            case 'csibm285':
731            case 'ebcdiccpgb':
732            case 'ibm285':
733                return 'IBM285';
734
735            case 'cp290':
736            case 'csibm290':
737            case 'ebcdicjpkana':
738            case 'ibm290':
739                return 'IBM290';
740
741            case 'cp297':
742            case 'csibm297':
743            case 'ebcdiccpfr':
744            case 'ibm297':
745                return 'IBM297';
746
747            case 'cp420':
748            case 'csibm420':
749            case 'ebcdiccpar1':
750            case 'ibm420':
751                return 'IBM420';
752
753            case 'cp423':
754            case 'csibm423':
755            case 'ebcdiccpgr':
756            case 'ibm423':
757                return 'IBM423';
758
759            case 'cp424':
760            case 'csibm424':
761            case 'ebcdiccphe':
762            case 'ibm424':
763                return 'IBM424';
764
765            case '437':
766            case 'cp437':
767            case 'cspc8codepage437':
768            case 'ibm437':
769                return 'IBM437';
770
771            case 'cp500':
772            case 'csibm500':
773            case 'ebcdiccpbe':
774            case 'ebcdiccpch':
775            case 'ibm500':
776                return 'IBM500';
777
778            case 'cp775':
779            case 'cspc775baltic':
780            case 'ibm775':
781                return 'IBM775';
782
783            case '850':
784            case 'cp850':
785            case 'cspc850multilingual':
786            case 'ibm850':
787                return 'IBM850';
788
789            case '851':
790            case 'cp851':
791            case 'csibm851':
792            case 'ibm851':
793                return 'IBM851';
794
795            case '852':
796            case 'cp852':
797            case 'cspcp852':
798            case 'ibm852':
799                return 'IBM852';
800
801            case '855':
802            case 'cp855':
803            case 'csibm855':
804            case 'ibm855':
805                return 'IBM855';
806
807            case '857':
808            case 'cp857':
809            case 'csibm857':
810            case 'ibm857':
811                return 'IBM857';
812
813            case 'ccsid858':
814            case 'cp858':
815            case 'ibm858':
816            case 'pcmultilingual850euro':
817                return 'IBM00858';
818
819            case '860':
820            case 'cp860':
821            case 'csibm860':
822            case 'ibm860':
823                return 'IBM860';
824
825            case '861':
826            case 'cp861':
827            case 'cpis':
828            case 'csibm861':
829            case 'ibm861':
830                return 'IBM861';
831
832            case '862':
833            case 'cp862':
834            case 'cspc862latinhebrew':
835            case 'ibm862':
836                return 'IBM862';
837
838            case '863':
839            case 'cp863':
840            case 'csibm863':
841            case 'ibm863':
842                return 'IBM863';
843
844            case 'cp864':
845            case 'csibm864':
846            case 'ibm864':
847                return 'IBM864';
848
849            case '865':
850            case 'cp865':
851            case 'csibm865':
852            case 'ibm865':
853                return 'IBM865';
854
855            case '866':
856            case 'cp866':
857            case 'csibm866':
858            case 'ibm866':
859                return 'IBM866';
860
861            case 'cp868':
862            case 'cpar':
863            case 'csibm868':
864            case 'ibm868':
865                return 'IBM868';
866
867            case '869':
868            case 'cp869':
869            case 'cpgr':
870            case 'csibm869':
871            case 'ibm869':
872                return 'IBM869';
873
874            case 'cp870':
875            case 'csibm870':
876            case 'ebcdiccproece':
877            case 'ebcdiccpyu':
878            case 'ibm870':
879                return 'IBM870';
880
881            case 'cp871':
882            case 'csibm871':
883            case 'ebcdiccpis':
884            case 'ibm871':
885                return 'IBM871';
886
887            case 'cp880':
888            case 'csibm880':
889            case 'ebcdiccyrillic':
890            case 'ibm880':
891                return 'IBM880';
892
893            case 'cp891':
894            case 'csibm891':
895            case 'ibm891':
896                return 'IBM891';
897
898            case 'cp903':
899            case 'csibm903':
900            case 'ibm903':
901                return 'IBM903';
902
903            case '904':
904            case 'cp904':
905            case 'csibbm904':
906            case 'ibm904':
907                return 'IBM904';
908
909            case 'cp905':
910            case 'csibm905':
911            case 'ebcdiccptr':
912            case 'ibm905':
913                return 'IBM905';
914
915            case 'cp918':
916            case 'csibm918':
917            case 'ebcdiccpar2':
918            case 'ibm918':
919                return 'IBM918';
920
921            case 'ccsid924':
922            case 'cp924':
923            case 'ebcdiclatin9euro':
924            case 'ibm924':
925                return 'IBM00924';
926
927            case 'cp1026':
928            case 'csibm1026':
929            case 'ibm1026':
930                return 'IBM1026';
931
932            case 'ibm1047':
933                return 'IBM1047';
934
935            case 'ccsid1140':
936            case 'cp1140':
937            case 'ebcdicus37euro':
938            case 'ibm1140':
939                return 'IBM01140';
940
941            case 'ccsid1141':
942            case 'cp1141':
943            case 'ebcdicde273euro':
944            case 'ibm1141':
945                return 'IBM01141';
946
947            case 'ccsid1142':
948            case 'cp1142':
949            case 'ebcdicdk277euro':
950            case 'ebcdicno277euro':
951            case 'ibm1142':
952                return 'IBM01142';
953
954            case 'ccsid1143':
955            case 'cp1143':
956            case 'ebcdicfi278euro':
957            case 'ebcdicse278euro':
958            case 'ibm1143':
959                return 'IBM01143';
960
961            case 'ccsid1144':
962            case 'cp1144':
963            case 'ebcdicit280euro':
964            case 'ibm1144':
965                return 'IBM01144';
966
967            case 'ccsid1145':
968            case 'cp1145':
969            case 'ebcdices284euro':
970            case 'ibm1145':
971                return 'IBM01145';
972
973            case 'ccsid1146':
974            case 'cp1146':
975            case 'ebcdicgb285euro':
976            case 'ibm1146':
977                return 'IBM01146';
978
979            case 'ccsid1147':
980            case 'cp1147':
981            case 'ebcdicfr297euro':
982            case 'ibm1147':
983                return 'IBM01147';
984
985            case 'ccsid1148':
986            case 'cp1148':
987            case 'ebcdicinternational500euro':
988            case 'ibm1148':
989                return 'IBM01148';
990
991            case 'ccsid1149':
992            case 'cp1149':
993            case 'ebcdicis871euro':
994            case 'ibm1149':
995                return 'IBM01149';
996
997            case 'csiso143iecp271':
998            case 'iecp271':
999            case 'isoir143':
1000                return 'IEC_P27-1';
1001
1002            case 'csiso49inis':
1003            case 'inis':
1004            case 'isoir49':
1005                return 'INIS';
1006
1007            case 'csiso50inis8':
1008            case 'inis8':
1009            case 'isoir50':
1010                return 'INIS-8';
1011
1012            case 'csiso51iniscyrillic':
1013            case 'iniscyrillic':
1014            case 'isoir51':
1015                return 'INIS-cyrillic';
1016
1017            case 'csinvariant':
1018            case 'invariant':
1019                return 'INVARIANT';
1020
1021            case 'iso2022cn':
1022                return 'ISO-2022-CN';
1023
1024            case 'iso2022cnext':
1025                return 'ISO-2022-CN-EXT';
1026
1027            case 'csiso2022jp':
1028            case 'iso2022jp':
1029                return 'ISO-2022-JP';
1030
1031            case 'csiso2022jp2':
1032            case 'iso2022jp2':
1033                return 'ISO-2022-JP-2';
1034
1035            case 'csiso2022kr':
1036            case 'iso2022kr':
1037                return 'ISO-2022-KR';
1038
1039            case 'cswindows30latin1':
1040            case 'iso88591windows30latin1':
1041                return 'ISO-8859-1-Windows-3.0-Latin-1';
1042
1043            case 'cswindows31latin1':
1044            case 'iso88591windows31latin1':
1045                return 'ISO-8859-1-Windows-3.1-Latin-1';
1046
1047            case 'csisolatin2':
1048            case 'iso88592':
1049            case 'iso885921987':
1050            case 'isoir101':
1051            case 'l2':
1052            case 'latin2':
1053                return 'ISO-8859-2';
1054
1055            case 'cswindows31latin2':
1056            case 'iso88592windowslatin2':
1057                return 'ISO-8859-2-Windows-Latin-2';
1058
1059            case 'csisolatin3':
1060            case 'iso88593':
1061            case 'iso885931988':
1062            case 'isoir109':
1063            case 'l3':
1064            case 'latin3':
1065                return 'ISO-8859-3';
1066
1067            case 'csisolatin4':
1068            case 'iso88594':
1069            case 'iso885941988':
1070            case 'isoir110':
1071            case 'l4':
1072            case 'latin4':
1073                return 'ISO-8859-4';
1074
1075            case 'csisolatincyrillic':
1076            case 'cyrillic':
1077            case 'iso88595':
1078            case 'iso885951988':
1079            case 'isoir144':
1080                return 'ISO-8859-5';
1081
1082            case 'arabic':
1083            case 'asmo708':
1084            case 'csisolatinarabic':
1085            case 'ecma114':
1086            case 'iso88596':
1087            case 'iso885961987':
1088            case 'isoir127':
1089                return 'ISO-8859-6';
1090
1091            case 'csiso88596e':
1092            case 'iso88596e':
1093                return 'ISO-8859-6-E';
1094
1095            case 'csiso88596i':
1096            case 'iso88596i':
1097                return 'ISO-8859-6-I';
1098
1099            case 'csisolatingreek':
1100            case 'ecma118':
1101            case 'elot928':
1102            case 'greek':
1103            case 'greek8':
1104            case 'iso88597':
1105            case 'iso885971987':
1106            case 'isoir126':
1107                return 'ISO-8859-7';
1108
1109            case 'csisolatinhebrew':
1110            case 'hebrew':
1111            case 'iso88598':
1112            case 'iso885981988':
1113            case 'isoir138':
1114                return 'ISO-8859-8';
1115
1116            case 'csiso88598e':
1117            case 'iso88598e':
1118                return 'ISO-8859-8-E';
1119
1120            case 'csiso88598i':
1121            case 'iso88598i':
1122                return 'ISO-8859-8-I';
1123
1124            case 'cswindows31latin5':
1125            case 'iso88599windowslatin5':
1126                return 'ISO-8859-9-Windows-Latin-5';
1127
1128            case 'csisolatin6':
1129            case 'iso885910':
1130            case 'iso8859101992':
1131            case 'isoir157':
1132            case 'l6':
1133            case 'latin6':
1134                return 'ISO-8859-10';
1135
1136            case 'iso885913':
1137                return 'ISO-8859-13';
1138
1139            case 'iso885914':
1140            case 'iso8859141998':
1141            case 'isoceltic':
1142            case 'isoir199':
1143            case 'l8':
1144            case 'latin8':
1145                return 'ISO-8859-14';
1146
1147            case 'iso885915':
1148            case 'latin9':
1149                return 'ISO-8859-15';
1150
1151            case 'iso885916':
1152            case 'iso8859162001':
1153            case 'isoir226':
1154            case 'l10':
1155            case 'latin10':
1156                return 'ISO-8859-16';
1157
1158            case 'iso10646j1':
1159                return 'ISO-10646-J-1';
1160
1161            case 'csunicode':
1162            case 'iso10646ucs2':
1163                return 'ISO-10646-UCS-2';
1164
1165            case 'csucs4':
1166            case 'iso10646ucs4':
1167                return 'ISO-10646-UCS-4';
1168
1169            case 'csunicodeascii':
1170            case 'iso10646ucsbasic':
1171                return 'ISO-10646-UCS-Basic';
1172
1173            case 'csunicodelatin1':
1174            case 'iso10646':
1175            case 'iso10646unicodelatin1':
1176                return 'ISO-10646-Unicode-Latin1';
1177
1178            case 'csiso10646utf1':
1179            case 'iso10646utf1':
1180                return 'ISO-10646-UTF-1';
1181
1182            case 'csiso115481':
1183            case 'iso115481':
1184            case 'isotr115481':
1185                return 'ISO-11548-1';
1186
1187            case 'csiso90':
1188            case 'isoir90':
1189                return 'iso-ir-90';
1190
1191            case 'csunicodeibm1261':
1192            case 'isounicodeibm1261':
1193                return 'ISO-Unicode-IBM-1261';
1194
1195            case 'csunicodeibm1264':
1196            case 'isounicodeibm1264':
1197                return 'ISO-Unicode-IBM-1264';
1198
1199            case 'csunicodeibm1265':
1200            case 'isounicodeibm1265':
1201                return 'ISO-Unicode-IBM-1265';
1202
1203            case 'csunicodeibm1268':
1204            case 'isounicodeibm1268':
1205                return 'ISO-Unicode-IBM-1268';
1206
1207            case 'csunicodeibm1276':
1208            case 'isounicodeibm1276':
1209                return 'ISO-Unicode-IBM-1276';
1210
1211            case 'csiso646basic1983':
1212            case 'iso646basic1983':
1213            case 'ref':
1214                return 'ISO_646.basic:1983';
1215
1216            case 'csiso2intlrefversion':
1217            case 'irv':
1218            case 'iso646irv1983':
1219            case 'isoir2':
1220                return 'ISO_646.irv:1983';
1221
1222            case 'csiso2033':
1223            case 'e13b':
1224            case 'iso20331983':
1225            case 'isoir98':
1226                return 'ISO_2033-1983';
1227
1228            case 'csiso5427cyrillic':
1229            case 'iso5427':
1230            case 'isoir37':
1231                return 'ISO_5427';
1232
1233            case 'iso5427cyrillic1981':
1234            case 'iso54271981':
1235            case 'isoir54':
1236                return 'ISO_5427:1981';
1237
1238            case 'csiso5428greek':
1239            case 'iso54281980':
1240            case 'isoir55':
1241                return 'ISO_5428:1980';
1242
1243            case 'csiso6937add':
1244            case 'iso6937225':
1245            case 'isoir152':
1246                return 'ISO_6937-2-25';
1247
1248            case 'csisotextcomm':
1249            case 'iso69372add':
1250            case 'isoir142':
1251                return 'ISO_6937-2-add';
1252
1253            case 'csiso8859supp':
1254            case 'iso8859supp':
1255            case 'isoir154':
1256            case 'latin125':
1257                return 'ISO_8859-supp';
1258
1259            case 'csiso10367box':
1260            case 'iso10367box':
1261            case 'isoir155':
1262                return 'ISO_10367-box';
1263
1264            case 'csiso15italian':
1265            case 'iso646it':
1266            case 'isoir15':
1267            case 'it':
1268                return 'IT';
1269
1270            case 'csiso13jisc6220jp':
1271            case 'isoir13':
1272            case 'jisc62201969':
1273            case 'jisc62201969jp':
1274            case 'katakana':
1275            case 'x2017':
1276                return 'JIS_C6220-1969-jp';
1277
1278            case 'csiso14jisc6220ro':
1279            case 'iso646jp':
1280            case 'isoir14':
1281            case 'jisc62201969ro':
1282            case 'jp':
1283                return 'JIS_C6220-1969-ro';
1284
1285            case 'csiso42jisc62261978':
1286            case 'isoir42':
1287            case 'jisc62261978':
1288                return 'JIS_C6226-1978';
1289
1290            case 'csiso87jisx208':
1291            case 'isoir87':
1292            case 'jisc62261983':
1293            case 'jisx2081983':
1294            case 'x208':
1295                return 'JIS_C6226-1983';
1296
1297            case 'csiso91jisc62291984a':
1298            case 'isoir91':
1299            case 'jisc62291984a':
1300            case 'jpocra':
1301                return 'JIS_C6229-1984-a';
1302
1303            case 'csiso92jisc62991984b':
1304            case 'iso646jpocrb':
1305            case 'isoir92':
1306            case 'jisc62291984b':
1307            case 'jpocrb':
1308                return 'JIS_C6229-1984-b';
1309
1310            case 'csiso93jis62291984badd':
1311            case 'isoir93':
1312            case 'jisc62291984badd':
1313            case 'jpocrbadd':
1314                return 'JIS_C6229-1984-b-add';
1315
1316            case 'csiso94jis62291984hand':
1317            case 'isoir94':
1318            case 'jisc62291984hand':
1319            case 'jpocrhand':
1320                return 'JIS_C6229-1984-hand';
1321
1322            case 'csiso95jis62291984handadd':
1323            case 'isoir95':
1324            case 'jisc62291984handadd':
1325            case 'jpocrhandadd':
1326                return 'JIS_C6229-1984-hand-add';
1327
1328            case 'csiso96jisc62291984kana':
1329            case 'isoir96':
1330            case 'jisc62291984kana':
1331                return 'JIS_C6229-1984-kana';
1332
1333            case 'csjisencoding':
1334            case 'jisencoding':
1335                return 'JIS_Encoding';
1336
1337            case 'cshalfwidthkatakana':
1338            case 'jisx201':
1339            case 'x201':
1340                return 'JIS_X0201';
1341
1342            case 'csiso159jisx2121990':
1343            case 'isoir159':
1344            case 'jisx2121990':
1345            case 'x212':
1346                return 'JIS_X0212-1990';
1347
1348            case 'csiso141jusib1002':
1349            case 'iso646yu':
1350            case 'isoir141':
1351            case 'js':
1352            case 'jusib1002':
1353            case 'yu':
1354                return 'JUS_I.B1.002';
1355
1356            case 'csiso147macedonian':
1357            case 'isoir147':
1358            case 'jusib1003mac':
1359            case 'macedonian':
1360                return 'JUS_I.B1.003-mac';
1361
1362            case 'csiso146serbian':
1363            case 'isoir146':
1364            case 'jusib1003serb':
1365            case 'serbian':
1366                return 'JUS_I.B1.003-serb';
1367
1368            case 'koi7switched':
1369                return 'KOI7-switched';
1370
1371            case 'cskoi8r':
1372            case 'koi8r':
1373                return 'KOI8-R';
1374
1375            case 'koi8u':
1376                return 'KOI8-U';
1377
1378            case 'csksc5636':
1379            case 'iso646kr':
1380            case 'ksc5636':
1381                return 'KSC5636';
1382
1383            case 'cskz1048':
1384            case 'kz1048':
1385            case 'rk1048':
1386            case 'strk10482002':
1387                return 'KZ-1048';
1388
1389            case 'csiso19latingreek':
1390            case 'isoir19':
1391            case 'latingreek':
1392                return 'latin-greek';
1393
1394            case 'csiso27latingreek1':
1395            case 'isoir27':
1396            case 'latingreek1':
1397                return 'Latin-greek-1';
1398
1399            case 'csiso158lap':
1400            case 'isoir158':
1401            case 'lap':
1402            case 'latinlap':
1403                return 'latin-lap';
1404
1405            case 'csmacintosh':
1406            case 'mac':
1407            case 'macintosh':
1408                return 'macintosh';
1409
1410            case 'csmicrosoftpublishing':
1411            case 'microsoftpublishing':
1412                return 'Microsoft-Publishing';
1413
1414            case 'csmnem':
1415            case 'mnem':
1416                return 'MNEM';
1417
1418            case 'csmnemonic':
1419            case 'mnemonic':
1420                return 'MNEMONIC';
1421
1422            case 'csiso86hungarian':
1423            case 'hu':
1424            case 'iso646hu':
1425            case 'isoir86':
1426            case 'msz77953':
1427                return 'MSZ_7795.3';
1428
1429            case 'csnatsdano':
1430            case 'isoir91':
1431            case 'natsdano':
1432                return 'NATS-DANO';
1433
1434            case 'csnatsdanoadd':
1435            case 'isoir92':
1436            case 'natsdanoadd':
1437                return 'NATS-DANO-ADD';
1438
1439            case 'csnatssefi':
1440            case 'isoir81':
1441            case 'natssefi':
1442                return 'NATS-SEFI';
1443
1444            case 'csnatssefiadd':
1445            case 'isoir82':
1446            case 'natssefiadd':
1447                return 'NATS-SEFI-ADD';
1448
1449            case 'csiso151cuba':
1450            case 'cuba':
1451            case 'iso646cu':
1452            case 'isoir151':
1453            case 'ncnc1081':
1454                return 'NC_NC00-10:81';
1455
1456            case 'csiso69french':
1457            case 'fr':
1458            case 'iso646fr':
1459            case 'isoir69':
1460            case 'nfz62010':
1461                return 'NF_Z_62-010';
1462
1463            case 'csiso25french':
1464            case 'iso646fr1':
1465            case 'isoir25':
1466            case 'nfz620101973':
1467                return 'NF_Z_62-010_(1973)';
1468
1469            case 'csiso60danishnorwegian':
1470            case 'csiso60norwegian1':
1471            case 'iso646no':
1472            case 'isoir60':
1473            case 'no':
1474            case 'ns45511':
1475                return 'NS_4551-1';
1476
1477            case 'csiso61norwegian2':
1478            case 'iso646no2':
1479            case 'isoir61':
1480            case 'no2':
1481            case 'ns45512':
1482                return 'NS_4551-2';
1483
1484            case 'osdebcdicdf3irv':
1485                return 'OSD_EBCDIC_DF03_IRV';
1486
1487            case 'osdebcdicdf41':
1488                return 'OSD_EBCDIC_DF04_1';
1489
1490            case 'osdebcdicdf415':
1491                return 'OSD_EBCDIC_DF04_15';
1492
1493            case 'cspc8danishnorwegian':
1494            case 'pc8danishnorwegian':
1495                return 'PC8-Danish-Norwegian';
1496
1497            case 'cspc8turkish':
1498            case 'pc8turkish':
1499                return 'PC8-Turkish';
1500
1501            case 'csiso16portuguese':
1502            case 'iso646pt':
1503            case 'isoir16':
1504            case 'pt':
1505                return 'PT';
1506
1507            case 'csiso84portuguese2':
1508            case 'iso646pt2':
1509            case 'isoir84':
1510            case 'pt2':
1511                return 'PT2';
1512
1513            case 'cp154':
1514            case 'csptcp154':
1515            case 'cyrillicasian':
1516            case 'pt154':
1517            case 'ptcp154':
1518                return 'PTCP154';
1519
1520            case 'scsu':
1521                return 'SCSU';
1522
1523            case 'csiso10swedish':
1524            case 'fi':
1525            case 'iso646fi':
1526            case 'iso646se':
1527            case 'isoir10':
1528            case 'se':
1529            case 'sen850200b':
1530                return 'SEN_850200_B';
1531
1532            case 'csiso11swedishfornames':
1533            case 'iso646se2':
1534            case 'isoir11':
1535            case 'se2':
1536            case 'sen850200c':
1537                return 'SEN_850200_C';
1538
1539            case 'csiso102t617bit':
1540            case 'isoir102':
1541            case 't617bit':
1542                return 'T.61-7bit';
1543
1544            case 'csiso103t618bit':
1545            case 'isoir103':
1546            case 't61':
1547            case 't618bit':
1548                return 'T.61-8bit';
1549
1550            case 'csiso128t101g2':
1551            case 'isoir128':
1552            case 't101g2':
1553                return 'T.101-G2';
1554
1555            case 'cstscii':
1556            case 'tscii':
1557                return 'TSCII';
1558
1559            case 'csunicode11':
1560            case 'unicode11':
1561                return 'UNICODE-1-1';
1562
1563            case 'csunicode11utf7':
1564            case 'unicode11utf7':
1565                return 'UNICODE-1-1-UTF-7';
1566
1567            case 'csunknown8bit':
1568            case 'unknown8bit':
1569                return 'UNKNOWN-8BIT';
1570
1571            case 'ansix341968':
1572            case 'ansix341986':
1573            case 'ascii':
1574            case 'cp367':
1575            case 'csascii':
1576            case 'ibm367':
1577            case 'iso646irv1991':
1578            case 'iso646us':
1579            case 'isoir6':
1580            case 'us':
1581            case 'usascii':
1582                return 'US-ASCII';
1583
1584            case 'csusdk':
1585            case 'usdk':
1586                return 'us-dk';
1587
1588            case 'utf7':
1589                return 'UTF-7';
1590
1591            case 'utf8':
1592                return 'UTF-8';
1593
1594            case 'utf16':
1595                return 'UTF-16';
1596
1597            case 'utf16be':
1598                return 'UTF-16BE';
1599
1600            case 'utf16le':
1601                return 'UTF-16LE';
1602
1603            case 'utf32':
1604                return 'UTF-32';
1605
1606            case 'utf32be':
1607                return 'UTF-32BE';
1608
1609            case 'utf32le':
1610                return 'UTF-32LE';
1611
1612            case 'csventurainternational':
1613            case 'venturainternational':
1614                return 'Ventura-International';
1615
1616            case 'csventuramath':
1617            case 'venturamath':
1618                return 'Ventura-Math';
1619
1620            case 'csventuraus':
1621            case 'venturaus':
1622                return 'Ventura-US';
1623
1624            case 'csiso70videotexsupp1':
1625            case 'isoir70':
1626            case 'videotexsuppl':
1627                return 'videotex-suppl';
1628
1629            case 'csviqr':
1630            case 'viqr':
1631                return 'VIQR';
1632
1633            case 'csviscii':
1634            case 'viscii':
1635                return 'VISCII';
1636
1637            case 'csshiftjis':
1638            case 'cswindows31j':
1639            case 'mskanji':
1640            case 'shiftjis':
1641            case 'windows31j':
1642                return 'Windows-31J';
1643
1644            case 'iso885911':
1645            case 'tis620':
1646                return 'windows-874';
1647
1648            case 'cseuckr':
1649            case 'csksc56011987':
1650            case 'euckr':
1651            case 'isoir149':
1652            case 'korean':
1653            case 'ksc5601':
1654            case 'ksc56011987':
1655            case 'ksc56011989':
1656            case 'windows949':
1657                return 'windows-949';
1658
1659            case 'windows1250':
1660                return 'windows-1250';
1661
1662            case 'windows1251':
1663                return 'windows-1251';
1664
1665            case 'cp819':
1666            case 'csisolatin1':
1667            case 'ibm819':
1668            case 'iso88591':
1669            case 'iso885911987':
1670            case 'isoir100':
1671            case 'l1':
1672            case 'latin1':
1673            case 'windows1252':
1674                return 'windows-1252';
1675
1676            case 'windows1253':
1677                return 'windows-1253';
1678
1679            case 'csisolatin5':
1680            case 'iso88599':
1681            case 'iso885991989':
1682            case 'isoir148':
1683            case 'l5':
1684            case 'latin5':
1685            case 'windows1254':
1686                return 'windows-1254';
1687
1688            case 'windows1255':
1689                return 'windows-1255';
1690
1691            case 'windows1256':
1692                return 'windows-1256';
1693
1694            case 'windows1257':
1695                return 'windows-1257';
1696
1697            case 'windows1258':
1698                return 'windows-1258';
1699
1700            default:
1701                return $charset;
1702        }
1703    }
1704
1705    /**
1706     * @return string
1707     */
1708    public static function get_curl_version()
1709    {
1710        if (is_array($curl = curl_version())) {
1711            $curl = $curl['version'];
1712        } else {
1713            $curl = '0';
1714        }
1715        return $curl;
1716    }
1717
1718    /**
1719     * Strip HTML comments
1720     *
1721     * @deprecated since SimplePie 1.9.0. If you need it, you can copy the function to your codebase. But you should consider using `DOMDocument` for any DOM wrangling.
1722     * @param string $data Data to strip comments from
1723     * @return string Comment stripped string
1724     */
1725    public static function strip_comments(string $data)
1726    {
1727        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.9.'), \E_USER_DEPRECATED);
1728
1729        $output = '';
1730        while (($start = strpos($data, '<!--')) !== false) {
1731            $output .= substr($data, 0, $start);
1732            if (($end = strpos($data, '-->', $start)) !== false) {
1733                $data = substr_replace($data, '', 0, $end + 3);
1734            } else {
1735                $data = '';
1736            }
1737        }
1738        return $output . $data;
1739    }
1740
1741    /**
1742     * @return int|false
1743     */
1744    public static function parse_date(string $dt)
1745    {
1746        $parser = \SimplePie\Parse\Date::get();
1747        return $parser->parse($dt);
1748    }
1749
1750    /**
1751     * Decode HTML entities
1752     *
1753     * @deprecated since SimplePie 1.3, use DOMDocument instead
1754     * @param string $data Input data
1755     * @return string Output data
1756     */
1757    public static function entities_decode(string $data)
1758    {
1759        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.3, use "DOMDocument" instead.'), \E_USER_DEPRECATED);
1760
1761        $decoder = new \SimplePie_Decode_HTML_Entities($data);
1762        return $decoder->parse();
1763    }
1764
1765    /**
1766     * Remove RFC822 comments
1767     *
1768     * @deprecated since SimplePie 1.9.0. If you need it, consider copying the function to your codebase.
1769     * @param string $string Data to strip comments from
1770     * @return string Comment stripped string
1771     */
1772    public static function uncomment_rfc822(string $string)
1773    {
1774        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.9.'), \E_USER_DEPRECATED);
1775
1776        $position = 0;
1777        $length = strlen($string);
1778        $depth = 0;
1779
1780        $output = '';
1781
1782        while ($position < $length && ($pos = strpos($string, '(', $position)) !== false) {
1783            $output .= substr($string, $position, $pos - $position);
1784            $position = $pos + 1;
1785            if ($string[$pos - 1] !== '\\') {
1786                $depth++;
1787                while ($depth && $position < $length) {
1788                    $position += strcspn($string, '()', $position);
1789                    if ($string[$position - 1] === '\\') {
1790                        $position++;
1791                        continue;
1792                    } elseif (isset($string[$position])) {
1793                        switch ($string[$position]) {
1794                            case '(':
1795                                $depth++;
1796                                break;
1797
1798                            case ')':
1799                                $depth--;
1800                                break;
1801                        }
1802                        $position++;
1803                    } else {
1804                        break;
1805                    }
1806                }
1807            } else {
1808                $output .= '(';
1809            }
1810        }
1811        $output .= substr($string, $position);
1812
1813        return $output;
1814    }
1815
1816    /**
1817     * @return string
1818     */
1819    public static function parse_mime(string $mime)
1820    {
1821        if (($pos = strpos($mime, ';')) === false) {
1822            return trim($mime);
1823        }
1824
1825        return trim(substr($mime, 0, $pos));
1826    }
1827
1828    /**
1829     * @param array<string, array<string, string>> $attribs
1830     * @return int-mask-of<SimplePie::CONSTRUCT_*>
1831     */
1832    public static function atom_03_construct_type(array $attribs)
1833    {
1834        if (isset($attribs['']['mode']) && strtolower(trim($attribs['']['mode'])) === 'base64') {
1835            $mode = \SimplePie\SimplePie::CONSTRUCT_BASE64;
1836        } else {
1837            $mode = \SimplePie\SimplePie::CONSTRUCT_NONE;
1838        }
1839        if (isset($attribs['']['type'])) {
1840            switch (strtolower(trim($attribs['']['type']))) {
1841                case 'text':
1842                case 'text/plain':
1843                    return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
1844
1845                case 'html':
1846                case 'text/html':
1847                    return \SimplePie\SimplePie::CONSTRUCT_HTML | $mode;
1848
1849                case 'xhtml':
1850                case 'application/xhtml+xml':
1851                    return \SimplePie\SimplePie::CONSTRUCT_XHTML | $mode;
1852
1853                default:
1854                    return \SimplePie\SimplePie::CONSTRUCT_NONE | $mode;
1855            }
1856        }
1857
1858        return \SimplePie\SimplePie::CONSTRUCT_TEXT | $mode;
1859    }
1860
1861    /**
1862     * @param array<string, array<string, string>> $attribs
1863     * @return int-mask-of<SimplePie::CONSTRUCT_*>
1864     */
1865    public static function atom_10_construct_type(array $attribs)
1866    {
1867        if (isset($attribs['']['type'])) {
1868            switch (strtolower(trim($attribs['']['type']))) {
1869                case 'text':
1870                    return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1871
1872                case 'html':
1873                    return \SimplePie\SimplePie::CONSTRUCT_HTML;
1874
1875                case 'xhtml':
1876                    return \SimplePie\SimplePie::CONSTRUCT_XHTML;
1877
1878                default:
1879                    return \SimplePie\SimplePie::CONSTRUCT_NONE;
1880            }
1881        }
1882        return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1883    }
1884
1885    /**
1886     * @param array<string, array<string, string>> $attribs
1887     * @return int-mask-of<SimplePie::CONSTRUCT_*>
1888     */
1889    public static function atom_10_content_construct_type(array $attribs)
1890    {
1891        if (isset($attribs['']['type'])) {
1892            $type = strtolower(trim($attribs['']['type']));
1893            switch ($type) {
1894                case 'text':
1895                    return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1896
1897                case 'html':
1898                    return \SimplePie\SimplePie::CONSTRUCT_HTML;
1899
1900                case 'xhtml':
1901                    return \SimplePie\SimplePie::CONSTRUCT_XHTML;
1902            }
1903            if (in_array(substr($type, -4), ['+xml', '/xml']) || substr($type, 0, 5) === 'text/') {
1904                return \SimplePie\SimplePie::CONSTRUCT_NONE;
1905            } else {
1906                return \SimplePie\SimplePie::CONSTRUCT_BASE64;
1907            }
1908        }
1909
1910        return \SimplePie\SimplePie::CONSTRUCT_TEXT;
1911    }
1912
1913    /**
1914     * @return bool
1915     */
1916    public static function is_isegment_nz_nc(string $string)
1917    {
1918        return (bool) preg_match('/^([A-Za-z0-9\-._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!$&\'()*+,;=@]|(%[0-9ABCDEF]{2}))+$/u', $string);
1919    }
1920
1921    /**
1922     * @return string[]
1923     */
1924    public static function space_separated_tokens(string $string)
1925    {
1926        $space_characters = "\x20\x09\x0A\x0B\x0C\x0D";
1927        $string_length = strlen($string);
1928
1929        $position = strspn($string, $space_characters);
1930        $tokens = [];
1931
1932        while ($position < $string_length) {
1933            $len = strcspn($string, $space_characters, $position);
1934            $tokens[] = substr($string, $position, $len);
1935            $position += $len;
1936            $position += strspn($string, $space_characters, $position);
1937        }
1938
1939        return $tokens;
1940    }
1941
1942    /**
1943     * Converts a unicode codepoint to a UTF-8 character
1944     *
1945     * @static
1946     * @param int $codepoint Unicode codepoint
1947     * @return string|false UTF-8 character
1948     */
1949    public static function codepoint_to_utf8(int $codepoint)
1950    {
1951        if ($codepoint < 0) {
1952            return false;
1953        } elseif ($codepoint <= 0x7f) {
1954            return chr($codepoint);
1955        } elseif ($codepoint <= 0x7ff) {
1956            return chr(0xc0 | ($codepoint >> 6)) . chr(0x80 | ($codepoint & 0x3f));
1957        } elseif ($codepoint <= 0xffff) {
1958            return chr(0xe0 | ($codepoint >> 12)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
1959        } elseif ($codepoint <= 0x10ffff) {
1960            return chr(0xf0 | ($codepoint >> 18)) . chr(0x80 | (($codepoint >> 12) & 0x3f)) . chr(0x80 | (($codepoint >> 6) & 0x3f)) . chr(0x80 | ($codepoint & 0x3f));
1961        }
1962
1963        // U+FFFD REPLACEMENT CHARACTER
1964        return "\xEF\xBF\xBD";
1965    }
1966
1967    /**
1968     * Similar to parse_str()
1969     *
1970     * Returns an associative array of name/value pairs, where the value is an
1971     * array of values that have used the same name
1972     *
1973     * @deprecated since SimplePie 1.9.0. If you need it, consider copying the function to your codebase.
1974     * @static
1975     * @param string $str The input string.
1976     * @return array<string, array<string|null>>
1977     */
1978    public static function parse_str(string $str)
1979    {
1980        // trigger_error(sprintf('Using method "' . __METHOD__ . '" is deprecated since SimplePie 1.9.'), \E_USER_DEPRECATED);
1981
1982        $return = [];
1983        $str = explode('&', $str);
1984
1985        foreach ($str as $section) {
1986            if (strpos($section, '=') !== false) {
1987                [$name, $value] = explode('=', $section, 2);
1988                $return[urldecode($name)][] = urldecode($value);
1989            } else {
1990                $return[urldecode($section)][] = null;
1991            }
1992        }
1993
1994        return $return;
1995    }
1996
1997    /**
1998     * Detect XML encoding, as per XML 1.0 Appendix F.1
1999     *
2000     * @todo Add support for EBCDIC
2001     * @param string $data XML data
2002     * @param \SimplePie\Registry $registry Class registry
2003     * @return array<string> Possible encodings
2004     */
2005    public static function xml_encoding(string $data, \SimplePie\Registry $registry)
2006    {
2007        // UTF-32 Big Endian BOM
2008        if (substr($data, 0, 4) === "\x00\x00\xFE\xFF") {
2009            $encoding[] = 'UTF-32BE';
2010        }
2011        // UTF-32 Little Endian BOM
2012        elseif (substr($data, 0, 4) === "\xFF\xFE\x00\x00") {
2013            $encoding[] = 'UTF-32LE';
2014        }
2015        // UTF-16 Big Endian BOM
2016        elseif (substr($data, 0, 2) === "\xFE\xFF") {
2017            $encoding[] = 'UTF-16BE';
2018        }
2019        // UTF-16 Little Endian BOM
2020        elseif (substr($data, 0, 2) === "\xFF\xFE") {
2021            $encoding[] = 'UTF-16LE';
2022        }
2023        // UTF-8 BOM
2024        elseif (substr($data, 0, 3) === "\xEF\xBB\xBF") {
2025            $encoding[] = 'UTF-8';
2026        }
2027        // UTF-32 Big Endian Without BOM
2028        elseif (substr($data, 0, 20) === "\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C") {
2029            if ($pos = strpos($data, "\x00\x00\x00\x3F\x00\x00\x00\x3E")) {
2030                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8')]);
2031                if ($parser->parse()) {
2032                    $encoding[] = $parser->encoding;
2033                }
2034            }
2035            $encoding[] = 'UTF-32BE';
2036        }
2037        // UTF-32 Little Endian Without BOM
2038        elseif (substr($data, 0, 20) === "\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00") {
2039            if ($pos = strpos($data, "\x3F\x00\x00\x00\x3E\x00\x00\x00")) {
2040                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8')]);
2041                if ($parser->parse()) {
2042                    $encoding[] = $parser->encoding;
2043                }
2044            }
2045            $encoding[] = 'UTF-32LE';
2046        }
2047        // UTF-16 Big Endian Without BOM
2048        elseif (substr($data, 0, 10) === "\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C") {
2049            if ($pos = strpos($data, "\x00\x3F\x00\x3E")) {
2050                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8')]);
2051                if ($parser->parse()) {
2052                    $encoding[] = $parser->encoding;
2053                }
2054            }
2055            $encoding[] = 'UTF-16BE';
2056        }
2057        // UTF-16 Little Endian Without BOM
2058        elseif (substr($data, 0, 10) === "\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00") {
2059            if ($pos = strpos($data, "\x3F\x00\x3E\x00")) {
2060                $parser = $registry->create(Parser::class, [Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8')]);
2061                if ($parser->parse()) {
2062                    $encoding[] = $parser->encoding;
2063                }
2064            }
2065            $encoding[] = 'UTF-16LE';
2066        }
2067        // US-ASCII (or superset)
2068        elseif (substr($data, 0, 5) === "\x3C\x3F\x78\x6D\x6C") {
2069            if ($pos = strpos($data, "\x3F\x3E")) {
2070                $parser = $registry->create(Parser::class, [substr($data, 5, $pos - 5)]);
2071                if ($parser->parse()) {
2072                    $encoding[] = $parser->encoding;
2073                }
2074            }
2075            $encoding[] = 'UTF-8';
2076        }
2077        // Fallback to UTF-8
2078        else {
2079            $encoding[] = 'UTF-8';
2080        }
2081        return $encoding;
2082    }
2083
2084    /**
2085     * @return void
2086     */
2087    public static function output_javascript()
2088    {
2089        if (function_exists('ob_gzhandler')) {
2090            ob_start('ob_gzhandler');
2091        }
2092        header('Content-type: text/javascript; charset: UTF-8');
2093        header('Cache-Control: must-revalidate');
2094        header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
2095
2096        $body = <<<JS
2097function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
2098	if (placeholder != '') {
2099		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
2100	}
2101	else {
2102		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" src="'+link+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="true" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
2103	}
2104}
2105
2106function embed_flash(bgcolor, width, height, link, loop, type) {
2107	document.writeln('<embed src="'+link+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="'+type+'" quality="high" width="'+width+'" height="'+height+'" bgcolor="'+bgcolor+'" loop="'+loop+'"></embed>');
2108}
2109
2110function embed_flv(width, height, link, placeholder, loop, player) {
2111	document.writeln('<embed src="'+player+'" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="'+width+'" height="'+height+'" wmode="transparent" flashvars="file='+link+'&autostart=false&repeat='+loop+'&showdigits=true&showfsbutton=false"></embed>');
2112}
2113
2114function embed_wmedia(width, height, link) {
2115	document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
2116}
2117JS;
2118        echo $body;
2119    }
2120
2121    /**
2122     * Get the SimplePie build timestamp
2123     *
2124     * Uses the git index if it exists, otherwise uses the modification time
2125     * of the newest file.
2126     *
2127     * @return int
2128     */
2129    public static function get_build()
2130    {
2131        if (self::$SIMPLEPIE_BUILD !== null) {
2132            return self::$SIMPLEPIE_BUILD;
2133        }
2134
2135        $root = dirname(__FILE__, 2);
2136        if (file_exists($root . '/.git/index')) {
2137            self::$SIMPLEPIE_BUILD = (int) filemtime($root . '/.git/index');
2138
2139            return self::$SIMPLEPIE_BUILD;
2140        } elseif (file_exists($root . '/src')) {
2141            $time = 0;
2142            foreach (glob($root . '/src/*.php') ?: [] as $file) {
2143                if (($mtime = filemtime($file)) > $time) {
2144                    $time = $mtime;
2145                }
2146            }
2147
2148            self::$SIMPLEPIE_BUILD = $time;
2149
2150            return self::$SIMPLEPIE_BUILD;
2151        }
2152
2153        self::$SIMPLEPIE_BUILD = (int) filemtime(__FILE__);
2154
2155        return self::$SIMPLEPIE_BUILD;
2156    }
2157
2158    /**
2159     * Get the default user agent string
2160     *
2161     * @return string
2162     */
2163    public static function get_default_useragent()
2164    {
2165        return \SimplePie\SimplePie::NAME . '/' . \SimplePie\SimplePie::VERSION . ' (Feed Parser; ' . \SimplePie\SimplePie::URL . '; Allow like Gecko) Build/' . static::get_build();
2166    }
2167
2168    /**
2169     * Format debugging information
2170     *
2171     * @return string
2172     */
2173    public static function debug(SimplePie &$sp)
2174    {
2175        $info = 'SimplePie ' . \SimplePie\SimplePie::VERSION . ' Build ' . static::get_build() . "\n";
2176        $info .= 'PHP ' . PHP_VERSION . "\n";
2177        if ($sp->error() !== null) {
2178            // TODO: Remove cast with multifeeds.
2179            $info .= 'Error occurred: ' . implode(', ', (array) $sp->error()) . "\n";
2180        } else {
2181            $info .= "No error found.\n";
2182        }
2183        $info .= "Extensions:\n";
2184        $extensions = ['pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml'];
2185        foreach ($extensions as $ext) {
2186            if (extension_loaded($ext)) {
2187                $info .= "    $ext loaded\n";
2188                switch ($ext) {
2189                    case 'pcre':
2190                        $info .= '      Version ' . PCRE_VERSION . "\n";
2191                        break;
2192                    case 'curl':
2193                        $version = (array) curl_version();
2194                        $info .= '      Version ' . $version['version'] . "\n";
2195                        break;
2196                    case 'iconv':
2197                        $info .= '      Version ' . ICONV_VERSION . "\n";
2198                        break;
2199                    case 'xml':
2200                        $info .= '      Version ' . LIBXML_DOTTED_VERSION . "\n";
2201                        break;
2202                }
2203            } else {
2204                $info .= "    $ext not loaded\n";
2205            }
2206        }
2207        return $info;
2208    }
2209
2210    /**
2211     * @return bool
2212     */
2213    public static function silence_errors(int $num, string $str)
2214    {
2215        // No-op
2216        return true;
2217    }
2218
2219    /**
2220     * Sanitize a URL by removing HTTP credentials.
2221     * @param string $url the URL to sanitize.
2222     * @return string the same URL without HTTP credentials.
2223     */
2224    public static function url_remove_credentials(string $url)
2225    {
2226        // Cast for PHPStan: I do not think this can fail.
2227        // The regex is valid and there should be no backtracking.
2228        // https://github.com/phpstan/phpstan/issues/11547
2229        return (string) preg_replace('#^(https?://)[^/:@]+:[^/:@]+@#i', '$1', $url);
2230    }
2231}
2232
2233class_alias('SimplePie\Misc', 'SimplePie_Misc', false);
2234