assistants.php
3 years ago
chatbot.php
3 years ago
chatbot_legacy.php
3 years ago
chatbot_logs.php
3 years ago
discussions.php
3 years ago
security.php
3 years ago
chatbot.php
331 lines
| 1 | <?php |
| 2 | |
| 3 | define( 'MWAI_CHATBOT_FRONT_PARAMS', [ 'aiName', 'userName', 'guestName', 'textSend', 'textClear', |
| 4 | 'textInputPlaceholder', 'textInputMaxLength', 'textCompliance', 'startSentence', 'localMemory', |
| 5 | 'themeId', 'window', 'icon', 'iconText', 'iconAlt', 'iconPosition', 'fullscreen', 'copyButton' |
| 6 | ] ); |
| 7 | |
| 8 | define( 'MWAI_CHATBOT_SERVER_PARAMS', [ 'id', 'env', 'mode', 'contentAware', 'embeddingsIndex', 'context', |
| 9 | 'casuallyFineTuned', 'promptEnding', 'completionEnding', 'model', 'temperature', 'maxTokens', |
| 10 | 'maxResults', 'apiKey', 'service' |
| 11 | ] ); |
| 12 | |
| 13 | class Meow_MWAI_Modules_Chatbot { |
| 14 | private $core = null; |
| 15 | private $namespace = 'mwai-ui/v1'; |
| 16 | private $siteWideChatId = null; |
| 17 | |
| 18 | public function __construct() { |
| 19 | global $mwai_core; |
| 20 | $this->core = $mwai_core; |
| 21 | add_shortcode( 'mwai_chatbot_v2', array( $this, 'chat_shortcode' ) ); |
| 22 | add_action( 'rest_api_init', array( $this, 'rest_api_init' ) ); |
| 23 | $this->siteWideChatId = $this->core->get_option( 'chatId' ); |
| 24 | add_action( 'wp_enqueue_scripts', array( $this, 'register_scripts' ) ); |
| 25 | } |
| 26 | |
| 27 | public function register_scripts() { |
| 28 | wp_register_script( 'mwai_highlight', MWAI_URL . 'vendor/highlightjs/highlight.min.js', [], '11.7', false ); |
| 29 | $physical_file = MWAI_PATH . '/app/chatbot.js'; |
| 30 | $cache_buster = file_exists( $physical_file ) ? filemtime( $physical_file ) : MWAI_VERSION; |
| 31 | wp_register_script( 'mwai_chatbot', MWAI_URL . '/app/chatbot.js', [ 'wp-element' ], $cache_buster, false ); |
| 32 | if ( !empty( $this->siteWideChatId ) && $this->siteWideChatId !== 'none' ) { |
| 33 | $this->enqueue_scripts(); |
| 34 | add_action( 'wp_footer', array( $this, 'inject_chat' ) ); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | public function enqueue_scripts() { |
| 39 | wp_enqueue_script( "mwai_chatbot" ); |
| 40 | if ( $this->core->get_option( 'shortcode_chat_syntax_highlighting' ) ) { |
| 41 | wp_enqueue_script( "mwai_highlight" ); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | public function rest_api_init() { |
| 46 | register_rest_route( $this->namespace, '/chats/submit', array( |
| 47 | 'methods' => 'POST', |
| 48 | 'callback' => array( $this, 'rest_chat' ), |
| 49 | 'permission_callback' => '__return_true' |
| 50 | ) ); |
| 51 | } |
| 52 | |
| 53 | public function basics_security_check( $params ) { |
| 54 | if ( empty( $params['newMessage'] ) ) { |
| 55 | error_log("AI Engine: The query was rejected - message was empty."); |
| 56 | return false; |
| 57 | } |
| 58 | if ( empty( $params['chatId'] ) && empty( $params['id'] ) ) { |
| 59 | error_log("AI Engine: The query was rejected - no chatId nor id was specified."); |
| 60 | return false; |
| 61 | } |
| 62 | $length = strlen( trim( $params['newMessage'] ) ); |
| 63 | if ( $length < 1 || $length > ( 4096 - 512 ) ) { |
| 64 | error_log("AI Engine: The query was rejected - message was too short or too long."); |
| 65 | return false; |
| 66 | } |
| 67 | return true; |
| 68 | } |
| 69 | |
| 70 | public function rest_chat( $request ) { |
| 71 | try { |
| 72 | $params = $request->get_json_params(); |
| 73 | if ( !$this->basics_security_check( $params )) { |
| 74 | return new WP_REST_Response( [ |
| 75 | 'success' => false, |
| 76 | 'message' => 'Sorry, your query has been rejected.' ], 403 |
| 77 | ); |
| 78 | } |
| 79 | |
| 80 | // Custom Chatbot |
| 81 | if ( $params['id'] ) { |
| 82 | $chatbot = get_transient( 'mwai_custom_chatbot_' . $params['id'] ); |
| 83 | } |
| 84 | // Registered Chatbot |
| 85 | else if ( $params['chatId'] ) { |
| 86 | $chatbot = $this->core->getChatbot( $params['chatId'] ); |
| 87 | } |
| 88 | |
| 89 | if ( !$chatbot ) { |
| 90 | error_log("AI Engine: No chatbot was found for this query."); |
| 91 | return new WP_REST_Response( [ |
| 92 | 'success' => false, |
| 93 | 'message' => 'Sorry, your query has been rejected.' ], 403 |
| 94 | ); |
| 95 | } |
| 96 | |
| 97 | // Create QueryText |
| 98 | $context = null; |
| 99 | if ( $chatbot['mode'] === 'images' ) { |
| 100 | $query = new Meow_MWAI_QueryImage( $params['newMessage'] ); |
| 101 | |
| 102 | // Handle Params |
| 103 | $newParams = []; |
| 104 | foreach ( $chatbot as $key => $value ) { |
| 105 | $newParams[$key] = $value; |
| 106 | } |
| 107 | foreach ( $params as $key => $value ) { |
| 108 | $newParams[$key] = $value; |
| 109 | } |
| 110 | $params = apply_filters( 'mwai_chatbot_params', $newParams ); |
| 111 | $params['env'] = empty( $params['env'] ) ? 'chatbot' : $params['env']; |
| 112 | $query->injectParams( $params ); |
| 113 | } |
| 114 | else { |
| 115 | $query = new Meow_MWAI_QueryText( $params['newMessage'], 1024 ); |
| 116 | $query->setIsChat( true ); |
| 117 | |
| 118 | // Handle Params |
| 119 | $newParams = []; |
| 120 | foreach ( $chatbot as $key => $value ) { |
| 121 | $newParams[$key] = $value; |
| 122 | } |
| 123 | foreach ( $params as $key => $value ) { |
| 124 | $newParams[$key] = $value; |
| 125 | } |
| 126 | $params = apply_filters( 'mwai_chatbot_params', $newParams ); |
| 127 | $params['env'] = empty( $params['env'] ) ? 'chatbot' : $params['env']; |
| 128 | $query->injectParams( $params ); |
| 129 | |
| 130 | // Takeover |
| 131 | $takeoverAnswer = apply_filters( 'mwai_chatbot_takeover', null, $query, $params ); |
| 132 | if ( !empty( $takeoverAnswer ) ) { |
| 133 | return new WP_REST_Response( [ 'success' => true, 'reply' => $takeoverAnswer, |
| 134 | 'html' => $takeoverAnswer, 'usage' => null ], 200 ); |
| 135 | } |
| 136 | |
| 137 | // Moderation |
| 138 | if ( $this->core->get_option( 'shortcode_chat_moderation' ) ) { |
| 139 | global $mwai; |
| 140 | $isFlagged = $mwai->moderationCheck( $query->prompt ); |
| 141 | if ( $isFlagged ) { |
| 142 | return new WP_REST_Response( [ |
| 143 | 'success' => false, |
| 144 | 'message' => 'Sorry, your message has been rejected by moderation.' ], 403 |
| 145 | ); |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | // Awareness & Embeddings |
| 150 | $embeddingsIndex = $params['embeddingsIndex']; |
| 151 | if ( $query->mode === 'chat' && !empty( $embeddingsIndex ) ) { |
| 152 | $context = apply_filters( 'mwai_context_search', $query, $embeddingsIndex ); |
| 153 | if ( !empty( $context ) ) { |
| 154 | $content = $this->core->cleanSentences( $context['content'] ); |
| 155 | $query->injectContext( $content ); |
| 156 | } |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | // Query the AI |
| 161 | $reply = $this->core->ai->run( $query ); |
| 162 | $rawText = $reply->result; |
| 163 | $extra = []; |
| 164 | if ( $context ) { |
| 165 | $extra = [ 'embeddings' => $context['embeddings'] ]; |
| 166 | } |
| 167 | $html = apply_filters( 'mwai_chatbot_reply', $rawText, $query, $params, $extra ); |
| 168 | if ( $this->core->get_option( 'shortcode_chat_formatting' ) ) { |
| 169 | $html = $this->core->markdown_to_html( $html ); |
| 170 | } |
| 171 | |
| 172 | return new WP_REST_Response( [ |
| 173 | 'success' => true, |
| 174 | 'reply' => $rawText, |
| 175 | 'images' => $reply->getType() === 'images' ? $reply->results : null, |
| 176 | 'html' => $html, |
| 177 | 'usage' => $reply->usage |
| 178 | ], 200 ); |
| 179 | } |
| 180 | catch ( Exception $e ) { |
| 181 | return new WP_REST_Response( [ 'success' => false, 'message' => $e->getMessage() ], 500 ); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | public function inject_chat() { |
| 186 | $params = $this->core->getChatbot( $this->siteWideChatId ); |
| 187 | $cleanParams = []; |
| 188 | if ( !empty( $params ) ) { |
| 189 | $cleanParams['window'] = true; |
| 190 | $cleanParams['id'] = $this->siteWideChatId; |
| 191 | echo $this->chat_shortcode( $cleanParams ); |
| 192 | } |
| 193 | return null; |
| 194 | } |
| 195 | |
| 196 | public function chat_shortcode( $atts ) { |
| 197 | $chatbot = null; |
| 198 | $isCustom = false; |
| 199 | $chatId = null; // ID of a registered chatbot. |
| 200 | $id = null; // ID of a custom chatbot. |
| 201 | $atts = empty( $atts ) ? [] : $atts; |
| 202 | |
| 203 | // If a ChatID is defined, we load it. |
| 204 | if ( isset( $atts['chat_id'] ) ) { |
| 205 | $chatId = $atts['chat_id']; |
| 206 | unset( $atts['chat_id'] ); |
| 207 | $chatbot = $this->core->getChatbot( $chatId ); |
| 208 | if ( !$chatbot ) { |
| 209 | return "AI Engine: Chatbot not found."; |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | // If no ChatID, but a ID, let's check it's actually a ChatID. |
| 214 | // If there is no ChatID for it, it means it's a custom shortcode. |
| 215 | $id = isset( $atts['id'] ) ? $atts['id'] : null; |
| 216 | if ( !empty( $id ) ) { |
| 217 | unset( $atts['id'] ); |
| 218 | if ( !$chatbot ) { |
| 219 | $chatbot = $this->core->getChatbot( $id ); |
| 220 | if ( $chatbot ) { |
| 221 | $isCustom = false; |
| 222 | $chatId = $id; |
| 223 | $id = null; |
| 224 | } |
| 225 | else { |
| 226 | $isCustom = true; |
| 227 | $chatId = 'default'; |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | // We need a base chatbot anyway. |
| 233 | if ( !$chatbot ) { |
| 234 | $chatbot = $this->core->getChatbot( 'default' ); |
| 235 | $chatId = 'default'; |
| 236 | } |
| 237 | |
| 238 | // Rename the keys of the atts into camelCase to match the internal params system. |
| 239 | $atts = array_map( function( $key, $value ) { |
| 240 | $key = str_replace( '_', ' ', $key ); |
| 241 | $key = ucwords( $key ); |
| 242 | $key = str_replace( ' ', '', $key ); |
| 243 | $key = lcfirst( $key ); |
| 244 | return [ $key => $value ]; |
| 245 | }, array_keys( $atts ), $atts ); |
| 246 | $atts = array_merge( ...$atts ); |
| 247 | |
| 248 | $frontParams = []; |
| 249 | foreach ( MWAI_CHATBOT_FRONT_PARAMS as $param ) { |
| 250 | if ( isset( $atts[$param] ) ) { |
| 251 | if ( $param === 'localMemory' ) { |
| 252 | $frontParams[$param] = $atts[$param] === 'true'; |
| 253 | } |
| 254 | else { |
| 255 | $frontParams[$param] = $atts[$param]; |
| 256 | } |
| 257 | } |
| 258 | else if ( isset( $chatbot[$param] ) ) { |
| 259 | $frontParams[$param] = $chatbot[$param]; |
| 260 | } |
| 261 | } |
| 262 | |
| 263 | // Server Params |
| 264 | $serverParams = []; |
| 265 | foreach ( MWAI_CHATBOT_SERVER_PARAMS as $param ) { |
| 266 | if ( isset( $atts[$param] ) ) { |
| 267 | $serverParams[$param] = $atts[$param]; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | // Front Params |
| 272 | $frontSystem = [ |
| 273 | 'id' => $id, |
| 274 | 'chatId' => $chatId, |
| 275 | 'userData' => $this->core->getUserData(), |
| 276 | 'sessionId' => $this->core->get_session_id(), |
| 277 | 'restNonce' => wp_create_nonce( 'wp_rest' ), |
| 278 | 'contextId' => get_the_ID(), |
| 279 | 'pluginUrl' => MWAI_URL, |
| 280 | 'restUrl' => untrailingslashit( rest_url() ), |
| 281 | 'debugMode' => $this->core->get_option( 'debug_mode' ), |
| 282 | 'typewriter' => $this->core->get_option( 'shortcode_chat_typewriter' ), |
| 283 | 'speech_recognition' => $this->core->get_option( 'speech_recognition' ), |
| 284 | 'speech_synthesis' => $this->core->get_option( 'speech_synthesis' ), |
| 285 | ]; |
| 286 | |
| 287 | // Clean Params |
| 288 | $frontParams = $this->cleanParams( $frontParams ); |
| 289 | $frontSystem = $this->cleanParams( $frontSystem ); |
| 290 | $serverParams = $this->cleanParams( $serverParams ); |
| 291 | |
| 292 | // Server-side: Keep the System Params |
| 293 | if ( count( $serverParams ) > 0 ) { |
| 294 | if ( !$isCustom ) { |
| 295 | $id = md5( json_encode( $serverParams ) ); |
| 296 | $chatId = null; |
| 297 | $frontSystem['id'] = $id; |
| 298 | $frontSystem['chatId'] = $chatId; |
| 299 | } |
| 300 | set_transient( 'mwai_custom_chatbot_' . $id, $serverParams, 60 * 60 * 24 ); |
| 301 | } |
| 302 | |
| 303 | // Client-side: Prepare JSON for Front Params and System Params |
| 304 | $theme = isset( $frontParams['themeId'] ) ? $this->core->getTheme( $frontParams['themeId'] ) : null; |
| 305 | $jsonFrontParams = htmlspecialchars(json_encode($frontParams), ENT_QUOTES, 'UTF-8'); |
| 306 | $jsonFrontSystem = htmlspecialchars(json_encode($frontSystem), ENT_QUOTES, 'UTF-8'); |
| 307 | $jsonFrontTheme = htmlspecialchars(json_encode($theme), ENT_QUOTES, 'UTF-8'); |
| 308 | //$jsonAttributes = htmlspecialchars(json_encode($atts), ENT_QUOTES, 'UTF-8'); |
| 309 | |
| 310 | $this->enqueue_scripts(); |
| 311 | return "<div class='mwai-chatbot-container' data-params='{$jsonFrontParams}' data-system='{$jsonFrontSystem}' data-theme='{$jsonFrontTheme}'></div>"; |
| 312 | } |
| 313 | |
| 314 | function cleanParams( &$params ) { |
| 315 | foreach ( $params as $param => $value ) { |
| 316 | if ( empty( $value ) || is_array( $value ) ) { |
| 317 | continue; |
| 318 | } |
| 319 | $lowerCaseValue = strtolower( $value ); |
| 320 | if ( $lowerCaseValue === 'true' || $lowerCaseValue === 'false' || is_bool( $value ) ) { |
| 321 | $params[$param] = filter_var( $value, FILTER_VALIDATE_BOOLEAN ); |
| 322 | } |
| 323 | else if ( is_numeric( $value ) ) { |
| 324 | $params[$param] = filter_var( $value, FILTER_VALIDATE_FLOAT ); |
| 325 | } |
| 326 | } |
| 327 | return $params; |
| 328 | } |
| 329 | |
| 330 | } |
| 331 |