121 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
			
		
		
	
	
			121 lines
		
	
	
		
			3.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
<?php namespace BookStack\Http\Middleware;
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use Carbon\Carbon;
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use Closure;
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use Illuminate\Http\Request;
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class Localization
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{
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    /**
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     * Array of right-to-left locales
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     * @var array
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     */
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    protected $rtlLocales = ['ar', 'he'];
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    /**
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     * Map of BookStack locale names to best-estimate system locale names.
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     * @var array
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     */
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    protected $localeMap = [
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        'ar' => 'ar',
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        'da' => 'da_DK',
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        'de' => 'de_DE',
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        'de_informal' => 'de_DE',
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        'en' => 'en_GB',
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        'es' => 'es_ES',
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        'es_AR' => 'es_AR',
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        'fr' => 'fr_FR',
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        'he' => 'he_IL',
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        'it' => 'it_IT',
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        'ja' => 'ja',
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        'ko' => 'ko_KR',
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        'nl' => 'nl_NL',
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        'pl' => 'pl_PL',
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        'pt' => 'pl_PT',
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        'pt_BR' => 'pt_BR',
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        'ru' => 'ru',
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        'sk' => 'sk_SK',
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        'sl' => 'sl_SI',
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        'sv' => 'sv_SE',
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        'uk' => 'uk_UA',
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        'vi' => 'vi_VN',
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        'zh_CN' => 'zh_CN',
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        'zh_TW' => 'zh_TW',
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        'tr' => 'tr_TR',
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    ];
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    /**
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     * Handle an incoming request.
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     *
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     * @param  \Illuminate\Http\Request  $request
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     * @param  \Closure  $next
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     * @return mixed
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     */
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    public function handle($request, Closure $next)
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    {
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        $defaultLang = config('app.locale');
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        config()->set('app.default_locale', $defaultLang);
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        if (user()->isDefault() && config('app.auto_detect_locale')) {
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            $locale = $this->autoDetectLocale($request, $defaultLang);
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        } else {
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            $locale = setting()->getUser(user(), 'language', $defaultLang);
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        }
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        config()->set('app.lang', str_replace('_', '-', $this->getLocaleIso($locale)));
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        // Set text direction
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        if (in_array($locale, $this->rtlLocales)) {
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            config()->set('app.rtl', true);
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        }
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        app()->setLocale($locale);
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        Carbon::setLocale($locale);
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        $this->setSystemDateLocale($locale);
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        return $next($request);
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    }
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    /**
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     * Autodetect the visitors locale by matching locales in their headers
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     * against the locales supported by BookStack.
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     * @param Request $request
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     * @param string $default
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     * @return string
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     */
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    protected function autoDetectLocale(Request $request, string $default)
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    {
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        $availableLocales = config('app.locales');
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        foreach ($request->getLanguages() as $lang) {
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            if (in_array($lang, $availableLocales)) {
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                return $lang;
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            }
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        }
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        return $default;
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    }
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    /**
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     * Get the ISO version of a BookStack language name
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     * @param  string $locale
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     * @return string
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     */
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    public function getLocaleIso(string $locale)
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    {
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        return $this->localeMap[$locale] ?? $locale;
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    }
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    /**
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     * Set the system date locale for localized date formatting.
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     * Will try both the standard locale name and the UTF8 variant.
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     * @param string $locale
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     */
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    protected function setSystemDateLocale(string $locale)
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    {
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        $systemLocale = $this->getLocaleIso($locale);
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        $set = setlocale(LC_TIME, $systemLocale);
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        if ($set === false) {
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            setlocale(LC_TIME, $systemLocale . '.utf8');
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        }
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    }
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}
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