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<?php |
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namespace BabyMarkt\DeepL; |
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/** |
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* DeepL API client library |
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* |
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* @package BabyMarkt\DeepL |
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*/ |
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class DeepL |
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{ |
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const API_URL_SCHEMA = 'https'; |
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/** |
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* API BASE URL |
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* https://api.deepl.com/v2/[resource]?auth_key=[yourAuthKey] |
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*/ |
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const API_URL_BASE = '%s://%s/v%s/%s?auth_key=%s'; |
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/** |
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* API URL: usage |
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*/ |
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const API_URL_RESOURCE_USAGE = 'usage'; |
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/** |
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* API URL: languages |
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*/ |
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const API_URL_RESOURCE_LANGUAGES = 'languages'; |
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/** |
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* DeepL API Version (v2 is default since 2018) |
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* |
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* @var integer |
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*/ |
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protected $apiVersion; |
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/** |
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* DeepL API Auth Key (DeepL Pro access required) |
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* |
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* @var string |
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*/ |
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protected $authKey; |
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/** |
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* cURL resource |
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* |
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* @var resource |
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*/ |
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protected $curl; |
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/** |
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* Hostname of the API (in most cases api.deepl.com) |
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* |
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* @var string |
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*/ |
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protected $host; |
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/** |
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* DeepL constructor |
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* |
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* @param string $authKey |
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* @param integer $apiVersion |
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* @param string $host |
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*/ |
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public function __construct($authKey, $apiVersion = 2, $host = 'api.deepl.com') |
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{ |
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$this->authKey = $authKey; |
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$this->apiVersion = $apiVersion; |
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$this->host = $host; |
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$this->curl = curl_init(); |
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curl_setopt($this->curl, CURLOPT_RETURNTRANSFER, 1); |
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} |
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/** |
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* DeepL destructor |
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*/ |
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public function __destruct() |
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{ |
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if ($this->curl && is_resource($this->curl)) { |
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curl_close($this->curl); |
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} |
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} |
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/** |
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* Call languages-Endpoint and return Json-response as an Array |
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* |
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* @param string $type |
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* |
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* @return array |
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* @throws DeepLException |
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*/ |
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public function languages($type = null) |
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{ |
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$url = $this->buildBaseUrl(self::API_URL_RESOURCE_LANGUAGES); |
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$body = $this->buildQuery(array('type' => $type)); |
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$languages = $this->request($url, $body); |
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return $languages; |
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} |
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/** |
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* Translate the text string or array from source to destination language |
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* For detailed info on Parameters see README.md |
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* |
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* @param string|string[] $text |
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* @param string $sourceLang |
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* @param string $targetLang |
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* @param string $tagHandling |
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* @param array|null $ignoreTags |
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* @param string $formality |
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* @param null $splitSentences |
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* @param null $preserveFormatting |
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* @param array|null $nonSplittingTags |
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* @param null $outlineDetection |
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* @param array|null $splittingTags |
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* |
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* @return array |
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* @throws DeepLException |
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* |
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* @SuppressWarnings(PHPMD.ExcessiveParameterList) |
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*/ |
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public function translate( |
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$text, |
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$sourceLang = 'de', |
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$targetLang = 'en', |
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$tagHandling = null, |
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array $ignoreTags = null, |
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$formality = 'default', |
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$splitSentences = null, |
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$preserveFormatting = null, |
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array $nonSplittingTags = null, |
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$outlineDetection = null, |
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array $splittingTags = null |
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) { |
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if (is_array($tagHandling)) { |
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throw new \InvalidArgumentException('$tagHandling must be of type String in V2 of DeepLLibrary'); |
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} |
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$paramsArray = array( |
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'text' => $text, |
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'source_lang' => $sourceLang, |
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'target_lang' => $targetLang, |
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'splitting_tags' => $splittingTags, |
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'non_splitting_tags' => $nonSplittingTags, |
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'ignore_tags' => $ignoreTags, |
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'tag_handling' => $tagHandling, |
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'formality' => $formality, |
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'split_sentences' => $splitSentences, |
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'preserve_formatting' => $preserveFormatting, |
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'outline_detection' => $outlineDetection, |
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); |
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$paramsArray = $this->removeEmptyParams($paramsArray); |
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$url = $this->buildBaseUrl(); |
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$body = $this->buildQuery($paramsArray); |
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// request the DeepL API |
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$translationsArray = $this->request($url, $body); |
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return $translationsArray['translations']; |
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} |
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/** |
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* Calls the usage-Endpoint and return Json-response as an array |
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* |
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* @return array |
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* @throws DeepLException |
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*/ |
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public function usage() |
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{ |
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$url = $this->buildBaseUrl(self::API_URL_RESOURCE_USAGE); |
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$usage = $this->request($url); |
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return $usage; |
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} |
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/** |
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* Creates the Base-Url which all of the 3 API-resources have in common. |
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* |
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* @param string $resource |
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* |
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* @return string |
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*/ |
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protected function buildBaseUrl($resource = 'translate') |
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{ |
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$url = sprintf( |
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self::API_URL_BASE, |
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self::API_URL_SCHEMA, |
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$this->host, |
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$this->apiVersion, |
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$resource, |
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$this->authKey |
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); |
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return $url; |
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} |
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/** |
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* @param array $paramsArray |
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* |
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* @return string |
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*/ |
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protected function buildQuery($paramsArray) |
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{ |
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if (isset($paramsArray['text']) && true === is_array($paramsArray['text'])) { |
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$text = $paramsArray['text']; |
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unset($paramsArray['text']); |
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$textString = ''; |
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foreach ($text as $textElement) { |
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$textString .= '&text='.rawurlencode($textElement); |
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} |
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} |
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foreach ($paramsArray as $key => $value) { |
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if (true === is_array($value)) { |
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$paramsArray[$key] = implode(',', $value); |
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} |
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} |
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$body = http_build_query($paramsArray, null, '&'); |
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if (isset($textString)) { |
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$body = $textString.'&'.$body; |
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} |
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return $body; |
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} |
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/** |
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* Make a request to the given URL |
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* |
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* @param string $url |
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* @param string $body |
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* |
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* @return array |
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* |
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* @throws DeepLException |
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*/ |
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protected function request($url, $body = '') |
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{ |
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curl_setopt($this->curl, CURLOPT_POST, true); |
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curl_setopt($this->curl, CURLOPT_URL, $url); |
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curl_setopt($this->curl, CURLOPT_POSTFIELDS, $body); |
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curl_setopt($this->curl, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded')); |
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$response = curl_exec($this->curl); |
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if (curl_errno($this->curl)) { |
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throw new DeepLException('There was a cURL Request Error : ' . curl_error($this->curl)); |
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} |
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$httpCode = curl_getinfo($this->curl, CURLINFO_HTTP_CODE); |
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$responseArray = json_decode($response, true); |
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if ($httpCode != 200 && is_array($responseArray) && array_key_exists('message', $responseArray)) { |
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throw new DeepLException($responseArray['message'], $httpCode); |
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} |
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if (false === is_array($responseArray)) { |
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throw new DeepLException('The Response seems to not be valid JSON.', $httpCode); |
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} |
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return $responseArray; |
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} |
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/** |
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* @param array $paramsArray |
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* |
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* @return array |
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*/ |
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private function removeEmptyParams($paramsArray) |
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{ |
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foreach ($paramsArray as $key => $value) { |
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if (true === empty($value)) { |
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unset($paramsArray[$key]); |
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} |
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// Special Workaround for outline_detection which will be unset above |
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// DeepL assumes outline_detection=1 if it is not send |
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// in order to deactivate it, we need to send outline_detection=0 to the api |
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if ('outline_detection' === $key) { |
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if (1 === $value) { |
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unset($paramsArray[$key]); |
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} |
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if (0 === $value) { |
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$paramsArray[$key] = 0; |
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} |
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} |
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} |
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return $paramsArray; |
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} |
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} |
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Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly.
For example, imagine you have a variable
$accountId
that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to theid
property of an instance of theAccount
class. This class holds a proper account, so the id value must no longer be false.Either this assignment is in error or a type check should be added for that assignment.