NatLibFi /
Skosmos
| Total Complexity | 62 |
| Total Lines | 500 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like WebController often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use WebController, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class WebController extends Controller |
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| 14 | { |
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| 15 | /** |
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| 16 | * Provides access to the templating engine. |
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| 17 | * @property object $twig the twig templating engine. |
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| 18 | */ |
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| 19 | public $twig; |
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| 20 | public $honeypot; |
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| 21 | public $translator; |
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| 22 | |||
| 23 | /** |
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| 24 | * Constructor for the WebController. |
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| 25 | * @param Model $model |
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| 26 | */ |
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| 27 | public function __construct($model) |
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| 28 | { |
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| 29 | parent::__construct($model); |
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| 30 | |||
| 31 | // initialize Twig templates |
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| 32 | $tmpDir = $model->getConfig()->getTemplateCache(); |
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| 33 | |||
| 34 | // check if the cache pointed by config.ttl exists, if not we create it. |
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| 35 | if (!file_exists($tmpDir)) { |
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| 36 | mkdir($tmpDir); |
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| 37 | } |
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| 38 | |||
| 39 | // specify where to look for templates and cache |
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| 40 | $loader = new \Twig\Loader\FilesystemLoader(__DIR__ . '/../view'); |
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| 41 | // initialize Twig environment |
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| 42 | $this->twig = new \Twig\Environment($loader, array('cache' => $tmpDir,'auto_reload' => true)); |
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| 43 | // used for setting the base href for the relative urls |
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| 44 | $this->twig->addGlobal("BaseHref", $this->getBaseHref()); |
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| 45 | |||
| 46 | // pass the GlobalConfig object to templates so they can access configuration |
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| 47 | $this->twig->addGlobal("GlobalConfig", $this->model->getConfig()); |
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| 48 | |||
| 49 | // setting the list of properties to be displayed in the search results |
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| 50 | $this->twig->addGlobal("PreferredProperties", array('skos:prefLabel', 'skos:narrower', 'skos:broader', 'skosmos:memberOf', 'skos:altLabel', 'skos:related')); |
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| 51 | |||
| 52 | // register a Twig filter for generating URLs for vocabulary resources (concepts and groups) |
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| 53 | $this->twig->addExtension(new LinkUrlExtension($model)); |
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| 54 | |||
| 55 | // register a Twig filter for generating strings from language codes with CLDR |
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| 56 | $langFilter = new \Twig\TwigFilter('lang_name', function ($langcode, $lang) { |
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| 57 | return Language::getName($langcode, $lang); |
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| 58 | }); |
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| 59 | $this->twig->addFilter($langFilter); |
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| 60 | |||
| 61 | $this->translator = $model->getTranslator(); |
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| 62 | $this->twig->addExtension(new TranslationExtension($this->translator)); |
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| 63 | |||
| 64 | // create the honeypot |
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| 65 | $this->honeypot = new \Honeypot(); |
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| 66 | if (!$this->model->getConfig()->getHoneypotEnabled()) { |
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| 67 | $this->honeypot->disable(); |
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| 68 | } |
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| 69 | $this->twig->addGlobal('honeypot', $this->honeypot); |
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| 70 | } |
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| 71 | |||
| 72 | /** |
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| 73 | * Guess the language of the user. Return a language string that is one |
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| 74 | * of the supported languages defined in the $LANGUAGES setting, e.g. "fi". |
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| 75 | * @param Request $request HTTP request |
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| 76 | * @param string $vocid identifier for the vocabulary eg. 'yso'. |
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| 77 | * @return string returns the language choice as a numeric string value |
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| 78 | */ |
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| 79 | public function guessLanguage($request, $vocid = null) |
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| 80 | { |
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| 81 | // 1. select language based on SKOSMOS_LANGUAGE cookie |
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| 82 | $languageCookie = $request->getCookie('SKOSMOS_LANGUAGE'); |
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| 83 | if ($languageCookie) { |
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| 84 | return $languageCookie; |
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| 85 | } |
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| 86 | |||
| 87 | // 2. if vocabulary given, select based on the default language of the vocabulary |
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| 88 | if ($vocid !== null && $vocid !== '') { |
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| 89 | try { |
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| 90 | $vocab = $this->model->getVocabulary($vocid); |
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| 91 | return $vocab->getConfig()->getDefaultLanguage(); |
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| 92 | } catch (Exception $e) { |
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| 93 | // vocabulary id not found, move on to the next selection method |
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| 94 | } |
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| 95 | } |
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| 96 | |||
| 97 | // 3. select language based on Accept-Language header |
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| 98 | header('Vary: Accept-Language'); // inform caches that a decision was made based on Accept header |
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| 99 | $this->negotiator = new \Negotiation\LanguageNegotiator(); |
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| 100 | $langcodes = array_keys($this->languages); |
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| 101 | // using a random language from the configured UI languages when there is no accept language header set |
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| 102 | $acceptLanguage = $request->getServerConstant('HTTP_ACCEPT_LANGUAGE') ? $request->getServerConstant('HTTP_ACCEPT_LANGUAGE') : $langcodes[0]; |
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| 103 | |||
| 104 | $bestLang = $this->negotiator->getBest($acceptLanguage, $langcodes); |
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| 105 | if (isset($bestLang) && in_array($bestLang->getValue(), $langcodes)) { |
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| 106 | return $bestLang->getValue(); |
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| 107 | } |
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| 108 | |||
| 109 | // show default site or prompt for language |
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| 110 | return $langcodes[0]; |
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| 111 | } |
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| 112 | |||
| 113 | /** |
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| 114 | * Determines a css class that controls width and positioning of the vocabulary list element. |
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| 115 | * The layout is wider if the left/right box templates have not been provided. |
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| 116 | * @return string css class for the container eg. 'voclist-wide' or 'voclist-right' |
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| 117 | */ |
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| 118 | private function listStyle() |
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| 119 | { |
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| 120 | $left = file_exists('view/left.inc'); |
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| 121 | $right = file_exists('view/right.inc'); |
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| 122 | $ret = 'voclist'; |
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| 123 | if (!$left && !$right) { |
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| 124 | $ret .= '-wide'; |
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| 125 | } elseif (!($left && $right) && ($right || $left)) { |
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| 126 | $ret .= ($right) ? '-left' : '-right'; |
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| 127 | } |
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| 128 | return $ret; |
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| 129 | } |
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| 130 | |||
| 131 | /** |
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| 132 | * Loads and renders the landing page view. |
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| 133 | * @param Request $request |
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| 134 | */ |
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| 135 | public function invokeLandingPage($request) |
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| 155 | ) |
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| 156 | ); |
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| 157 | } |
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| 158 | |||
| 159 | /** |
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| 160 | * Invokes the concept page of a single concept in a specific vocabulary. |
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| 161 | * |
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| 162 | * @param Request $request |
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| 163 | */ |
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| 164 | public function invokeVocabularyConcept(Request $request) |
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| 199 | ); |
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| 200 | } |
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| 201 | |||
| 202 | /** |
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| 203 | * Invokes the feedback page with information of the users current vocabulary. |
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| 204 | */ |
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| 205 | public function invokeFeedbackForm($request) |
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| 206 | { |
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| 207 | $template = $this->twig->load('feedback.twig'); |
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| 208 | $this->model->setLocale($request->getLang()); |
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| 209 | $vocabList = $this->model->getVocabularyList(false); |
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| 210 | $vocab = $request->getVocab(); |
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| 211 | |||
| 212 | $feedbackSent = false; |
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| 213 | if ($request->getQueryParamPOST('message')) { |
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| 214 | $feedbackSent = true; |
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| 215 | $feedbackMsg = $request->getQueryParamPOST('message'); |
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| 216 | $feedbackName = $request->getQueryParamPOST('name'); |
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| 217 | $feedbackEmail = $request->getQueryParamPOST('email'); |
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| 218 | $msgSubject = $request->getQueryParamPOST('msgsubject'); |
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| 219 | $feedbackVocab = $request->getQueryParamPOST('vocab'); |
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| 220 | $feedbackVocabEmail = ($feedbackVocab !== null && $feedbackVocab !== '') ? |
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| 221 | $this->model->getVocabulary($feedbackVocab)->getConfig()->getFeedbackRecipient() : null; |
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| 222 | // if the hidden field has been set a value we have found a spam bot |
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| 223 | // and we do not actually send the message. |
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| 224 | if ($this->honeypot->validateHoneypot($request->getQueryParamPOST('item-description')) && |
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| 225 | $this->honeypot->validateHoneytime($request->getQueryParamPOST('user-captcha'), $this->model->getConfig()->getHoneypotTime())) { |
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| 226 | $this->sendFeedback($request, $feedbackMsg, $msgSubject, $feedbackName, $feedbackEmail, $feedbackVocab, $feedbackVocabEmail); |
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| 227 | } |
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| 228 | } |
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| 229 | echo $template->render( |
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| 230 | array( |
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| 231 | 'languages' => $this->languages, |
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| 232 | 'vocab' => $vocab, |
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| 233 | 'vocabList' => $vocabList, |
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| 234 | 'feedback_sent' => $feedbackSent, |
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| 235 | 'request' => $request, |
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| 236 | ) |
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| 237 | ); |
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| 238 | } |
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| 239 | |||
| 240 | private function createFeedbackHeaders($fromName, $fromEmail, $toMail, $sender) |
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| 241 | { |
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| 242 | $headers = "MIME-Version: 1.0" . "\r\n"; |
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| 243 | $headers .= "Content-type: text/html; charset=UTF-8" . "\r\n"; |
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| 244 | if (!empty($toMail)) { |
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| 245 | $headers .= "Cc: " . $this->model->getConfig()->getFeedbackAddress() . "\r\n"; |
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| 246 | } |
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| 247 | if (!empty($fromEmail)) { |
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| 248 | $headers .= "Reply-To: $fromName <$fromEmail>\r\n"; |
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| 249 | } |
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| 250 | $service = $this->model->getConfig()->getServiceName(); |
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| 251 | return $headers . "From: $fromName via $service <$sender>"; |
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| 252 | } |
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| 253 | |||
| 254 | /** |
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| 255 | * Sends the user entered message through the php's mailer. |
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| 256 | * @param string $message content given by user. |
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| 257 | * @param string $messageSubject subject line given by user. |
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| 258 | * @param string $fromName senders own name. |
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| 259 | * @param string $fromEmail senders email address. |
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| 260 | * @param string $fromVocab which vocabulary is the feedback related to. |
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| 261 | */ |
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| 262 | public function sendFeedback($request, $message, $messageSubject, $fromName = null, $fromEmail = null, $fromVocab = null, $toMail = null) |
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| 307 | } |
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| 308 | } |
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| 309 | |||
| 310 | /** |
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| 311 | * Invokes the about page for the Skosmos service. |
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| 312 | */ |
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| 313 | public function invokeAboutPage($request) |
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| 314 | { |
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| 315 | $template = $this->twig->load('about.twig'); |
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| 316 | $this->model->setLocale($request->getLang()); |
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| 317 | $url = $request->getServerConstant('HTTP_HOST'); |
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| 318 | |||
| 319 | echo $template->render( |
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| 320 | array( |
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| 321 | 'languages' => $this->languages, |
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| 322 | 'server_instance' => $url, |
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| 323 | 'request' => $request, |
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| 324 | ) |
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| 325 | ); |
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| 326 | } |
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| 327 | |||
| 328 | /** |
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| 329 | * Invokes the search for concepts in all the available ontologies. |
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| 330 | */ |
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| 331 | public function invokeGlobalSearch($request) |
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| 332 | { |
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| 333 | $lang = $request->getLang(); |
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| 334 | $template = $this->twig->load('global-search.twig'); |
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| 335 | $this->model->setLocale($request->getLang()); |
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| 336 | |||
| 337 | $parameters = new ConceptSearchParameters($request, $this->model->getConfig()); |
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| 338 | |||
| 339 | $vocabs = $request->getQueryParam('vocabs'); # optional |
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| 340 | // convert to vocids array to support multi-vocabulary search |
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| 341 | $vocids = ($vocabs !== null && $vocabs !== '') ? explode(' ', $vocabs) : null; |
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| 342 | $vocabObjects = array(); |
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| 343 | if ($vocids) { |
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| 344 | foreach ($vocids as $vocid) { |
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| 345 | try { |
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| 346 | $vocabObjects[] = $this->model->getVocabulary($vocid); |
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| 347 | } catch (ValueError $e) { |
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| 348 | // fail fast with an error page if the vocabulary cannot be found |
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| 349 | if ($this->model->getConfig()->getLogCaughtExceptions()) { |
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| 350 | error_log('Caught exception: ' . $e->getMessage()); |
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| 351 | } |
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| 352 | header("HTTP/1.0 400 Bad Request"); |
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| 353 | $this->invokeGenericErrorPage($request, $e->getMessage()); |
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| 354 | return; |
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| 355 | } |
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| 356 | } |
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| 357 | } |
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| 358 | $parameters->setVocabularies($vocabObjects); |
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| 359 | |||
| 360 | $counts = null; |
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| 361 | $searchResults = null; |
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| 362 | $errored = false; |
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| 363 | |||
| 364 | try { |
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| 365 | $countAndResults = $this->model->searchConceptsAndInfo($parameters); |
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| 366 | $counts = $countAndResults['count']; |
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| 367 | $searchResults = $countAndResults['results']; |
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| 368 | } catch (Exception $e) { |
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| 369 | $errored = true; |
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| 370 | header("HTTP/1.0 500 Internal Server Error"); |
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| 371 | if ($this->model->getConfig()->getLogCaughtExceptions()) { |
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| 372 | error_log('Caught exception: ' . $e->getMessage()); |
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| 373 | } |
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| 374 | } |
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| 375 | $vocabList = $this->model->getVocabularyList(); |
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| 376 | $sortedVocabs = $this->model->getVocabularyList(false, true); |
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| 377 | $langList = $this->model->getLanguages($lang); |
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| 378 | |||
| 379 | echo $template->render( |
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| 380 | array( |
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| 381 | 'search_count' => $counts, |
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| 382 | 'languages' => $this->languages, |
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| 383 | 'search_results' => $searchResults, |
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| 384 | 'rest' => $parameters->getOffset() > 0, |
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| 385 | 'global_search' => true, |
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| 386 | 'search_failed' => $errored, |
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| 387 | 'term' => $request->getQueryParamRaw('q'), |
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| 388 | 'lang_list' => $langList, |
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| 389 | 'vocabs' => isset($vocabs) ? str_replace(' ', '+', $vocabs) : null, |
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| 390 | 'vocab_list' => $vocabList, |
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| 391 | 'sorted_vocabs' => $sortedVocabs, |
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| 392 | 'request' => $request, |
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| 393 | 'parameters' => $parameters |
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| 394 | ) |
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| 395 | ); |
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| 396 | } |
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| 397 | |||
| 398 | /** |
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| 399 | * Invokes the search for a single vocabs concepts. |
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| 400 | */ |
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| 401 | public function invokeVocabularySearch($request) |
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| 467 | ) |
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| 468 | ); |
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| 469 | } |
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| 470 | |||
| 471 | /** |
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| 472 | * Loads and renders the view containing a specific vocabulary. |
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| 473 | */ |
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| 474 | public function invokeVocabularyHome($request) |
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| 475 | { |
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| 476 | $lang = $request->getLang(); |
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| 477 | $this->model->setLocale($request->getLang()); |
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| 478 | $vocab = $request->getVocab(); |
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| 479 | |||
| 480 | $defaultView = $vocab->getConfig()->getDefaultSidebarView(); |
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| 481 | |||
| 482 | $pluginParameters = json_encode($vocab->getConfig()->getPluginParameters()); |
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| 483 | |||
| 484 | $template = $this->twig->load('vocab-home.twig'); |
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| 485 | |||
| 486 | echo $template->render( |
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| 487 | array( |
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| 488 | 'languages' => $this->languages, |
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| 489 | 'vocab' => $vocab, |
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| 490 | 'search_letter' => 'A', |
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| 491 | 'active_tab' => $defaultView, |
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| 492 | 'request' => $request, |
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| 493 | 'plugin_params' => $pluginParameters |
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| 494 | ) |
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| 495 | ); |
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| 496 | } |
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| 497 | |||
| 498 | /** |
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| 499 | * Invokes a very generic errorpage. |
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| 500 | */ |
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| 501 | public function invokeGenericErrorPage($request, $message = null) |
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| 513 | ) |
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| 514 | ); |
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| 515 | } |
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| 517 |
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