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<?php
/**
* Generates language-specific data used by DiscussionTools.
*
* @file
* @ingroup Extensions
* @license MIT
*/
namespace MediaWiki\Extension\DiscussionTools;
use DateTimeZone;
use MediaWiki\Config\Config;
use MediaWiki\Language\ILanguageConverter;
use MediaWiki\Language\Language;
use MediaWiki\Languages\LanguageConverterFactory;
use MediaWiki\MainConfigNames;
use MediaWiki\SpecialPage\SpecialPageFactory;
class LanguageData {
private Config $config;
private Language $language;
private LanguageConverterFactory $languageConverterFactory;
private SpecialPageFactory $specialPageFactory;
public function __construct(
Config $config,
Language $language,
LanguageConverterFactory $languageConverterFactory,
SpecialPageFactory $specialPageFactory
) {
$this->config = $config;
$this->language = $language;
$this->languageConverterFactory = $languageConverterFactory;
$this->specialPageFactory = $specialPageFactory;
}
/**
* Compute data we need to parse discussion threads on pages.
*/
public function getLocalData(): array {
$config = $this->config;
$lang = $this->language;
$langConv = $this->languageConverterFactory->getLanguageConverter( $lang );
$data = [];
$data['dateFormat'] = [];
$dateFormat = $lang->getDateFormatString( 'both', $lang->dateFormat( false ) );
foreach ( $langConv->getVariants() as $variant ) {
$convDateFormat = $this->convertDateFormat( $dateFormat, $langConv, $variant );
$data['dateFormat'][$variant] = $convDateFormat;
}
$data['digits'] = [];
foreach ( $langConv->getVariants() as $variant ) {
$data['digits'][$variant] = [];
foreach ( str_split( '0123456789' ) as $digit ) {
if ( $config->get( MainConfigNames::TranslateNumerals ) ) {
$localDigit = $lang->formatNumNoSeparators( $digit );
} else {
$localDigit = $digit;
}
$convLocalDigit = $langConv->translate( $localDigit, $variant );
$data['digits'][$variant][] = $convLocalDigit;
}
}
// ApiQuerySiteinfo
$data['localTimezone'] = $config->get( MainConfigNames::Localtimezone );
// special page names compared against Title::getText, which contains space
// But aliases are stored with underscores (db key) in the alias files
$data['specialContributionsName'] = str_replace( '_', ' ', $this->specialPageFactory
->getLocalNameFor( 'Contributions' ) );
$data['specialNewSectionName'] = str_replace( '_', ' ', $this->specialPageFactory
->getLocalNameFor( 'NewSection' ) );
$localTimezone = $config->get( MainConfigNames::Localtimezone );
// Return all timezone abbreviations for the local timezone (there will often be two, for
// non-DST and DST timestamps, and sometimes more due to historical data, but that's okay).
// Avoid DateTimeZone::listAbbreviations(), it returns some half-baked list that is different
// from the timezone data used by everything else in PHP.
$timezoneTransitions = ( new DateTimeZone( $localTimezone ) )->getTransitions();
if ( !is_array( $timezoneTransitions ) ) {
// Handle (arguably invalid) config where $wgLocaltimezone is an abbreviation like "CST"
// instead of a real IANA timezone name like "America/Chicago". (T312310)
// "DateTimeZone objects wrapping type 1 (UTC offsets) and type 2 (abbreviations) do not
// contain any transitions, and calling this method on them will return false."
// https://www.php.net/manual/en/datetimezone.gettransitions.php
$timezoneAbbrs = [ $localTimezone ];
} else {
$timezoneAbbrs = array_values( array_unique(
array_map( static function ( $transition ) {
return $transition['abbr'];
}, $timezoneTransitions )
) );
}
$data['timezones'] = [];
foreach ( $langConv->getVariants() as $variant ) {
$data['timezones'][$variant] = array_combine(
array_map( static function ( string $tzMsg ) use ( $lang, $langConv, $variant ) {
// MWTimestamp::getTimezoneMessage()
// Parser::pstPass2()
// Messages used here: 'timezone-utc' and so on
$key = 'timezone-' . strtolower( trim( $tzMsg ) );
$msg = wfMessage( $key )->inLanguage( $lang );
// TODO: This probably causes a similar issue to https://phabricator.wikimedia.org/T221294,
// but we *must* check the message existence in the database, because the messages are not
// actually defined by MediaWiki core for any timezone other than UTC...
if ( $msg->exists() ) {
$text = $msg->text();
} else {
$text = strtoupper( $tzMsg );
}
$convText = $langConv->translate( $text, $variant );
return $convText;
}, $timezoneAbbrs ),
array_map( 'strtoupper', $timezoneAbbrs )
);
}
// Messages in content language
$messagesKeys = array_merge(
Language::WEEKDAY_MESSAGES,
Language::WEEKDAY_ABBREVIATED_MESSAGES,
Language::MONTH_MESSAGES,
Language::MONTH_GENITIVE_MESSAGES,
Language::MONTH_ABBREVIATED_MESSAGES
);
$data['contLangMessages'] = [];
foreach ( $langConv->getVariants() as $variant ) {
$data['contLangMessages'][$variant] = array_combine(
$messagesKeys,
array_map( static function ( $key ) use ( $lang, $langConv, $variant ) {
$text = wfMessage( $key )->inLanguage( $lang )->text();
return $langConv->translate( $text, $variant );
}, $messagesKeys )
);
}
return $data;
}
/**
* Convert a date format string to a different language variant, leaving all special characters
* unchanged and applying language conversion to the plain text fragments.
*/
private function convertDateFormat(
string $format,
ILanguageConverter $langConv,
string $variant
): string {
$formatLength = strlen( $format );
$s = '';
// The supported codes must match CommentParser::getTimestampRegexp()
for ( $p = 0; $p < $formatLength; $p++ ) {
$num = false;
$code = $format[ $p ];
if ( $code === 'x' && $p < $formatLength - 1 ) {
$code .= $format[++$p];
}
if ( $code === 'xk' && $p < $formatLength - 1 ) {
$code .= $format[++$p];
}
// LAZY SHORTCUTS that might cause bugs:
// * We assume that result of $langConv->translate() doesn't produce any special codes/characters
// * We assume that calling $langConv->translate() separately for each character is correct
switch ( $code ) {
case 'xx':
case 'xg':
case 'xn':
case 'd':
case 'D':
case 'j':
case 'l':
case 'F':
case 'M':
case 'm':
case 'n':
case 'Y':
case 'xkY':
case 'G':
case 'H':
case 'i':
case 's':
// Special code - pass through unchanged
$s .= $code;
break;
case '\\':
// Plain text (backslash escaping) - convert to language variant
if ( $p < $formatLength - 1 ) {
$s .= '\\' . $langConv->translate( $format[++$p], $variant );
} else {
$s .= $code;
}
break;
case '"':
// Plain text (quoted literal) - convert to language variant
if ( $p < $formatLength - 1 ) {
$endQuote = strpos( $format, '"', $p + 1 );
if ( $endQuote === false ) {
// No terminating quote, assume literal "
$s .= $code;
} else {
$s .= '"' .
$langConv->translate( substr( $format, $p + 1, $endQuote - $p - 1 ), $variant ) .
'"';
$p = $endQuote;
}
} else {
// Quote at end of string, assume literal "
$s .= $code;
}
break;
default:
// Plain text - convert to language variant
$s .= $langConv->translate( $format[$p], $variant );
}
}
return $s;
}
}