Create transcribe_watson.php

resources/classes/transcribe_watson.php

@@ -0,0 +1,250 @@
+<?php
+
+
+ /**
+ * transcribe_watson class
+ *
+ * @method null download
+ */
+if (!class_exists('transcribe_watson')) {
+	class transcribe_watson implements transcribe_interface {
+
+		/**
+		 * declare private variables
+		 */
+		private $api_key;
+		private $api_url;
+		private $language;
+		private $path;
+		private $filename;
+		private $format;
+		private $voice;
+		private $message;
+		private $model;
+
+		/**
+		 * called when the object is created
+		 */
+		public function __construct($settings) {
+
+			//build the setting object and get the recording path
+			$this->api_key = $settings->get('transcribe', 'api_key');
+			$this->api_url = $settings->get('transcribe', 'api_url');
+			$this->language = $settings->get('transcribe', 'language');
+
+		}
+
+		public function set_path(string $audio_path) {
+			$this->path = $audio_path;
+		}
+
+		public function set_filename(string $audio_filename) {
+			$this->filename = $audio_filename;
+		}
+
+		public function set_format(string $audio_format) {
+			$this->format = $audio_format;
+		}
+
+		public function set_voice(string $audio_voice) {
+			$this->voice = $audio_voice;
+		}
+
+		public function set_language(string $audio_language) {
+			$this->language = $audio_language;
+		}
+
+		public function set_translate(string $audio_translate) {
+			$this->translate = $audio_translate;
+		}
+
+		public function set_message(string $audio_message) {
+			$this->message = $audio_message;
+		}
+
+		public function is_language_enabled() : bool {
+			//return the whether engine is handles languages
+			return false;
+		}
+
+		public function is_translate_enabled() : bool {
+			//return the whether engine is able to translate
+			return false;
+		}
+
+		public function get_languages() : array {
+			//create the languages array
+			$languages = array(
+				"af" => "Afrikaans",
+				"ar" => "Arabic",
+				"hy" => "Armenian",
+				"az" => "Azerbaijani",
+				"be" => "Belarusian",
+				"bs" => "Bosnian",
+				"bg" => "Bulgarian",
+				"ca" => "Catalan",
+				"zh" => "Chinese",
+				"hr" => "Croatian",
+				"cs" => "Czech",
+				"da" => "Danish",
+				"nl" => "Dutch",
+				"en" => "English",
+				"et" => "Estonian",
+				"fi" => "Finnish",
+				"fr" => "French",
+				"gl" => "Galician",
+				"de" => "German",
+				"el" => "Greek",
+				"he" => "Hebrew",
+				"hi" => "Hindi",
+				"hu" => "Hungarian",
+				"is" => "Icelandic",
+				"id" => "Indonesian",
+				"it" => "Italian",
+				"ja" => "Japanese",
+				"kn" => "Kannada",
+				"kk" => "Kazakh",
+				"ko" => "Korean",
+				"lv" => "Latvian",
+				"lt" => "Lithuanian",
+				"mk" => "Macedonian",
+				"ms" => "Malay",
+				"mr" => "Marathi",
+				"mi" => "Maori",
+				"ne" => "Nepali",
+				"no" => "Norwegian",
+				"fa" => "Persian",
+				"pl" => "Polish",
+				"pt" => "Portuguese",
+				"ro" => "Romanian",
+				"ru" => "Russian",
+				"sr" => "Serbian",
+				"sk" => "Slovak",
+				"sl" => "Slovenian",
+				"es" => "Spanish",
+				"sw" => "Swahili",
+				"sv" => "Swedish",
+				"tl" => "Tagalog",
+				"ta" => "Tamil",
+				"th" => "Thai",
+				"tr" => "Turkish",
+				"uk" => "Ukrainian",
+				"ur" => "Urdu",
+				"vi" => "Vietnamese",
+				"cy" => "Welsh"
+			);
+
+			//return the languages array
+			return $languages;
+		}
+
+		/**
+		 * transcribe - speech to text
+		 */
+		public function transcribe() : string {
+
+			//get the content type
+			$path_array = pathinfo($this->path.'/'.$this->filename);
+			if ($path_array['extension'] == "mp3") {
+				$content_type = 'audio/mp3';
+			}
+			if ($path_array['extension'] == "wav") {
+				$content_type = 'audio/wav';
+			}
+
+			//start output buffer
+			ob_start();
+			$out = fopen('php://output', 'w');
+
+			// initialize a curl handle
+			$ch = curl_init();
+
+			// set the URL for the request
+			curl_setopt($ch, CURLOPT_URL, $this->api_url);
+
+			// set the request method to POST
+			curl_setopt($ch, CURLOPT_POST, 1);
+
+			//return the response as a string instead of outputting it directly
+			curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+
+			//send the autentication
+			curl_setopt($ch, CURLOPT_USERPWD, 'apikey' . ':' . $this->api_key);
+
+			//set the authentication type
+			curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
+
+			//send the content type
+			curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: '.$content_type]);
+
+			//send the file as binary
+			curl_setopt($ch, CURLOPT_BINARYTRANSFER,TRUE);
+			curl_setopt($ch, CURLOPT_POSTFIELDS, file_get_contents($this->path.'/'.$this->filename));
+
+			//set the connection timeout and the overall maximum curl run time
+			curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
+			curl_setopt($ch, CURLOPT_TIMEOUT, 300);
+
+			//To follow any "Location: " header that the server sends as part of the HTTP header.
+			curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
+
+			//To automatically set the Referer: field in requests where it follows a Location: redirect.
+			curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
+
+			//Set whether to verify SSL peer
+			curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, TRUE);
+
+			//hide the headers when set to 0
+			curl_setopt($ch, CURLOPT_HEADER, 0);
+
+			//add verbose for debugging
+			curl_setopt($ch, CURLOPT_VERBOSE, true);
+			curl_setopt($ch, CURLOPT_STDERR, $out);
+
+			//show the debug information
+			fclose($out);
+			//$this->debug = ob_get_clean();
+
+			// run the curl request and transcription message
+			$json_response = curl_exec($ch);
+
+			// check for errors
+			if (curl_errno($ch)) {
+				echo 'Error: ' . curl_error($ch);
+				exit;
+			}
+
+			// close the handle
+			curl_close($ch);
+
+			//get the content of the message
+			$json = json_decode($json_response, true);
+
+			//validate the json
+			if ($json === null) {
+				return 'invalid json';
+			}
+
+			//find the data
+			foreach($json['results'] as $row) {
+				$this->message .= $row['alternatives'][0]['transcript'];
+			}
+
+			//clean the data
+			$this->message = str_replace("%HESITATION", " ", trim($this->message));
+			$this->message = ucfirst($this->message);
+
+			// return the transcription
+			if (empty($this->message)) {
+				return '';
+			}
+			else {
+				return "Your message has been transcribed by watson:  ".$this->message;
+			}
+
+		}
+
+	}
+}
+
+?>