The Bing API has been replaced with Azure, which, from a quick look, seems to require a bunch of personal information at sign-up. So Yandex it is until we can find something better.master
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<?php |
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// Logic specific to Microsoft Translator |
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class AccessToken { |
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public $token; |
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public $expires; |
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function AccessToken($token) { |
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$this->token = $token; |
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if (preg_match('/&ExpiresOn=(\d+)&/', $token, $matches)) { |
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$this->expires = $matches[1] . "000"; // Seconds to milliseconds |
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} |
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} |
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} |
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class MicrosoftTranslator { |
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private $client_id; |
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private $client_secret; |
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private $scope; |
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private $grant_type; |
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private $auth_url; |
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private $access_token; |
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// Constructor |
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function MicrosoftTranslator($client_id, $client_secret) { |
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$this->client_id = $client_id; |
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$this->client_secret = $client_secret; |
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// Populate our access token |
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$this->getAccessToken(); |
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} |
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// Checks if access token is expired |
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// and requests a new one if so |
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function renewAccessTokenIfExpired() { |
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$now = new DateTime(); |
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// Access token expired, get another one |
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if ($now->getTimestamp() > $this->access_token->expires) { |
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$this->getAccessToken(); |
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} |
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} |
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// Get human-readable names from ISO 639-1 language codes |
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function getLanguageNames($codes) { |
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$this->renewAccessTokenIfExpired(); |
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// XML representation of the codes we're interested in |
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$params = '<ArrayOfstring xmlns="http://schemas.microsoft.com/2003/10/Serialization/Arrays" xmlns:i="http://www.w3.org/2001/XMLSchema-instance">'; |
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if (sizeof($codes) > 0) { |
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foreach ($codes as $code) { |
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$params .= '<string>' . $code . '</string>'; |
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} |
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} else { |
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return array(); |
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} |
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$params .= '</ArrayOfstring>'; |
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$url = 'http://api.microsofttranslator.com/V2/Http.svc/GetLanguageNames?locale=en'; // TODO: configurable locale |
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$header = 'Authorization: Bearer ' . $this->access_token->token; |
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$response = $this->http($url, $header, $params); |
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$xmlObj = simplexml_load_string($response); |
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$languages = array(); |
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foreach ($xmlObj->string as $language) { |
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$languages[] = $language; |
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} |
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return $languages; |
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} |
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// Get list of supported languages |
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function getLanguagesForTranslate() { |
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$this->renewAccessTokenIfExpired(); |
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$url = 'http://api.microsofttranslator.com/V2/Http.svc/GetLanguagesForTranslate'; |
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$header = 'Authorization: Bearer ' . $this->access_token->token; |
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$response = $this->http($url, $header); |
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$xmlObj = simplexml_load_string($response); |
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if ($xmlObj === false) { |
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// TODO: Exception |
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return array(); |
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} |
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$languageCodes = array(); |
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foreach ($xmlObj->string as $language) { |
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$languageCodes[] = $language; |
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} |
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return $languageCodes; |
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} |
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// Identify the language of a selected piece of text |
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function detect($text) { |
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$this->renewAccessTokenIfExpired(); |
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$url = 'http://api.microsofttranslator.com/V2/Http.svc/Detect?text='; |
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$header = 'Authorization: Bearer ' . $this->access_token->token; |
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$response = $this->http($url, $header); |
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$xmlObj = simplexml_load_string($response); |
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foreach((array)$xmlObj[0] as $val){ |
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$languageCode = $val; |
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} |
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return $languageCode; |
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} |
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// Simple curl wrapper |
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private function http($url, $headers = null, $postParams = null) { |
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$ch = curl_init(); |
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curl_setopt($ch, CURLOPT_URL, $url); |
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); |
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if ($postParams !== null) { |
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curl_setopt($ch, CURLOPT_POST, true); |
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curl_setopt($ch, CURLOPT_POSTFIELDS, $postParams); |
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} |
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if ($headers !== null) { |
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curl_setopt($ch, CURLOPT_HTTPHEADER, array($headers, 'Content-Type: text/xml')); |
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} |
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$response = curl_exec($ch); |
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$errno = curl_errno($ch); |
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if ($errno) { |
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$err = curl_error($ch); |
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throw new Exception($err); |
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} |
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curl_close($ch); |
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return $response; |
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} |
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// Get an access token |
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function getAccessToken() { |
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$scope = 'http://api.microsofttranslator.com/'; |
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$grant_type = 'client_credentials'; |
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$url = 'https://datamarket.accesscontrol.windows.net/v2/OAuth2-13'; |
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$params = http_build_query( |
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array( |
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'client_id' => $this->client_id, |
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'client_secret' => $this->client_secret, |
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'scope' => $scope, |
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'grant_type' => $grant_type |
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) |
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); |
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$response = $this->http($url, null, $params); |
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$json = json_decode($response); |
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if (isset($json->error)) { |
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throw new Exception($json->error_description); |
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} |
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return $this->access_token = new AccessToken($json->access_token); |
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} |
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} |
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@ -0,0 +1,43 @@ |
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<?php |
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class YandexTranslator { |
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private $api_key; |
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private $api_root; |
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// Constructor |
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function YandexTranslator($api_key) { |
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$this->api_key = $api_key; |
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$this->api_root = 'https://translate.yandex.net/api/v1.5/tr.json'; |
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} |
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public function getSupportedLanguages() { |
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$endpoint = $this->api_root . '/getLangs'; |
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$params = array( |
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'key' => $this->api_key, |
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'ui' => 'en' // TODO: configurable? |
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); |
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$response = HTTPClient::quickGet($endpoint, null, $params); |
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$json = json_decode($response, true); |
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asort($json['langs']); |
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return $json['langs']; |
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} |
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public function translate($text, $target_language) { |
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$endpoint = $this->api_root . '/translate'; |
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$lang = isset($target_language) ? $target_language : 'en'; |
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$params = array( |
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'key' => $this->api_key, |
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'text' => $text, |
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'lang' => $lang |
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); |
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return HTTPClient::quickGet($endpoint, null, $params); |
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} |
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} |
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