openai.php
826 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_OpenAI |
| 4 | { |
| 5 | private $core = null; |
| 6 | private $localApiKey = null; |
| 7 | private $localService = null; |
| 8 | |
| 9 | // OpenAI Server |
| 10 | private $openaiEndpoint = 'https://api.openai.com/v1'; |
| 11 | |
| 12 | // Azure Server |
| 13 | private $localAzureEndpoint = null; |
| 14 | private $localAzureApiKey = null; |
| 15 | private $localAzureDeployments = null; |
| 16 | private $azureApiVersion = 'api-version=2023-03-15-preview'; |
| 17 | |
| 18 | // Streaming |
| 19 | private $streamTemporaryBuffer = ""; |
| 20 | private $streamBuffer = ""; |
| 21 | private $streamCallback = null; |
| 22 | private $streamedTokens = 0; |
| 23 | |
| 24 | public function __construct($core) |
| 25 | { |
| 26 | $this->core = $core; |
| 27 | $this->localService = $this->core->get_option( 'openai_service' ); |
| 28 | $this->localApiKey = $this->core->get_option( 'openai_apikey' ); |
| 29 | $this->localAzureEndpoint = $this->core->get_option( 'openai_azure_endpoint' ); |
| 30 | $this->localAzureApiKey = $this->core->get_option( 'openai_azure_apikey' ); |
| 31 | $this->localAzureDeployments = $this->core->get_option( 'openai_azure_deployments' ); |
| 32 | $this->localAzureDeployments[] = [ 'model' => 'dall-e', 'name' => 'dall-e' ]; |
| 33 | } |
| 34 | |
| 35 | |
| 36 | // Check for a JSON-formatted error in the data, and throw an exception if it's the case. |
| 37 | function check_for_error( $data ) { |
| 38 | if ( strpos( $data, '"error"' ) !== false ) { |
| 39 | $json = json_decode( $data, true ); |
| 40 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 41 | $error = $json['error']; |
| 42 | $code = $error['code']; |
| 43 | $message = $error['message']; |
| 44 | throw new Exception( "Error $code: $message" ); |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | /* |
| 50 | This used to be in the core.php, but since it's relative to OpenAI, it's better to have it here. |
| 51 | */ |
| 52 | |
| 53 | public function stream_handler( $handle, $args, $url ) { |
| 54 | curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, false ); |
| 55 | curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, false ); |
| 56 | |
| 57 | // Maybe we could get some info from headers, as for now, there is only the model. |
| 58 | // curl_setopt( $handle, CURLOPT_HEADERFUNCTION, function( $curl, $headerLine ) { |
| 59 | // $line = trim( $headerLine ); |
| 60 | // return strlen( $headerLine ); |
| 61 | // }); |
| 62 | |
| 63 | curl_setopt( $handle, CURLOPT_WRITEFUNCTION, function ( $curl, $data ) { |
| 64 | $length = strlen( $data ); |
| 65 | |
| 66 | // FOR DEBUG: |
| 67 | // preg_match_all( '/"content":"(.*?)"/', $data, $matches ); |
| 68 | // $contents = $matches[1]; |
| 69 | // foreach ( $contents as $content ) { |
| 70 | // error_log( "Content: $content" ); |
| 71 | // } |
| 72 | |
| 73 | // Error Management |
| 74 | $this->check_for_error( $data ); |
| 75 | |
| 76 | // Bufferize the unfinished stream (if it's the case) |
| 77 | $this->streamTemporaryBuffer .= $data; |
| 78 | $lines = explode( "\n", $this->streamTemporaryBuffer ); |
| 79 | if ( substr( $this->streamTemporaryBuffer, -1 ) !== "\n" ) { |
| 80 | $this->streamTemporaryBuffer = array_pop( $lines ); |
| 81 | } |
| 82 | else { |
| 83 | $this->streamTemporaryBuffer = ""; |
| 84 | } |
| 85 | |
| 86 | foreach ( $lines as $line ) { |
| 87 | if ( $line === "" ) { |
| 88 | continue; |
| 89 | } |
| 90 | if ( strpos($line, 'data: ' ) === 0 ) { |
| 91 | $line = substr( $line, 6 ); |
| 92 | $json = json_decode( $line, true ); |
| 93 | |
| 94 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 95 | $content = null; |
| 96 | if ( isset( $json['choices'][0]['text'] ) ) { |
| 97 | $content = $json['choices'][0]['text']; |
| 98 | } |
| 99 | else if ( isset( $json['choices'][0]['delta']['content'] ) ) { |
| 100 | $content = $json['choices'][0]['delta']['content']; |
| 101 | } |
| 102 | if ( $content !== null && $content !== "" ) { |
| 103 | $this->streamedTokens += count( explode( " ", $content ) ); |
| 104 | $this->streamBuffer .= $content; |
| 105 | call_user_func( $this->streamCallback, $content ); |
| 106 | } |
| 107 | } |
| 108 | else { |
| 109 | $this->streamTemporaryBuffer .= $line . "\n"; |
| 110 | } |
| 111 | } |
| 112 | } |
| 113 | return $length; |
| 114 | }); |
| 115 | } |
| 116 | |
| 117 | private function buildHeaders( $query ) { |
| 118 | $headers = array( |
| 119 | 'Content-Type' => 'application/json', |
| 120 | 'Authorization' => 'Bearer ' . $query->apiKey, |
| 121 | ); |
| 122 | if ( $query->service === 'azure' ) { |
| 123 | $headers = array( 'Content-Type' => 'application/json', 'api-key' => $query->azureApiKey ); |
| 124 | } |
| 125 | return $headers; |
| 126 | } |
| 127 | |
| 128 | private function buildOptions( $headers, $json = null, $forms = null ) { |
| 129 | |
| 130 | // Build body |
| 131 | $body = null; |
| 132 | if ( !empty( $forms ) ) { |
| 133 | $boundary = wp_generate_password ( 24, false ); |
| 134 | $headers['Content-Type'] = 'multipart/form-data; boundary=' . $boundary; |
| 135 | $body = $this->buildFormBody( $forms, $boundary ); |
| 136 | } |
| 137 | else if ( !empty( $json ) ) { |
| 138 | $body = json_encode( $json ); |
| 139 | } |
| 140 | |
| 141 | // Build options |
| 142 | $options = array( |
| 143 | 'headers' => $headers, |
| 144 | 'method' => 'POST', |
| 145 | 'timeout' => MWAI_TIMEOUT, |
| 146 | 'body' => $body, |
| 147 | 'sslverify' => false |
| 148 | ); |
| 149 | |
| 150 | return $options; |
| 151 | } |
| 152 | |
| 153 | public function runQuery( $url, $options, $isStream = false ) { |
| 154 | try { |
| 155 | $options['stream'] = $isStream; |
| 156 | if ( $isStream ) { |
| 157 | $options['filename'] = tempnam( sys_get_temp_dir(), 'mwai-stream-' ); |
| 158 | } |
| 159 | $res = wp_remote_get( $url, $options ); |
| 160 | |
| 161 | if ( is_wp_error( $res ) ) { |
| 162 | throw new Exception( $res->get_error_message() ); |
| 163 | } |
| 164 | |
| 165 | if ( $isStream ) { |
| 166 | return [ 'stream' => true ]; |
| 167 | } |
| 168 | |
| 169 | $response = wp_remote_retrieve_body( $res ); |
| 170 | $headersRes = wp_remote_retrieve_headers( $res ); |
| 171 | $headers = $headersRes->getAll(); |
| 172 | |
| 173 | // If Headers contains multipart/form-data then we don't need to decode the response |
| 174 | if ( strpos( $options['headers']['Content-Type'], 'multipart/form-data' ) !== false ) { |
| 175 | return [ |
| 176 | 'stream' => false, |
| 177 | 'headers' => $headers, |
| 178 | 'data' => $response |
| 179 | ]; |
| 180 | } |
| 181 | |
| 182 | $data = json_decode( $response, true ); |
| 183 | $this->handleResponseErrors( $data ); |
| 184 | |
| 185 | return [ |
| 186 | 'headers' => $headers, |
| 187 | 'data' => $data |
| 188 | ]; |
| 189 | } |
| 190 | catch ( Exception $e ) { |
| 191 | error_log( $e->getMessage() ); |
| 192 | throw $e; |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | private function applyQueryParameters( $query ) { |
| 197 | if ( empty( $query->service ) ) { |
| 198 | $query->service = $this->localService; |
| 199 | } |
| 200 | |
| 201 | // OpenAI will be used by default for everything |
| 202 | if ( empty( $query->apiKey ) ) { |
| 203 | $query->apiKey = $this->localApiKey; |
| 204 | } |
| 205 | |
| 206 | // But if the service is set to Azure and the deployments/models are available, |
| 207 | // then we will use Azure instead. |
| 208 | if ( $query->service === 'azure' && !empty( $this->localAzureDeployments ) ) { |
| 209 | $found = false; |
| 210 | foreach ( $this->localAzureDeployments as $deployment ) { |
| 211 | if ( $deployment['model'] === $query->model ) { |
| 212 | $query->azureDeployment = $deployment['name']; |
| 213 | if ( empty( $query->azureEndpoint ) ) { |
| 214 | $query->azureEndpoint = $this->localAzureEndpoint; |
| 215 | } |
| 216 | if ( empty( $query->azureApiKey ) ) { |
| 217 | $query->azureApiKey = $this->localAzureApiKey; |
| 218 | } |
| 219 | $found = true; |
| 220 | break; |
| 221 | } |
| 222 | } |
| 223 | if ( !$found ) { |
| 224 | error_log( 'Azure deployment not found for model: ' . $query->model ); |
| 225 | $query->service = 'openai'; |
| 226 | } |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | private function getAudio( $url ) { |
| 231 | require_once( ABSPATH . 'wp-admin/includes/media.php' ); |
| 232 | $tmpFile = tempnam( sys_get_temp_dir(), 'audio_' ); |
| 233 | file_put_contents( $tmpFile, file_get_contents( $url ) ); |
| 234 | $length = null; |
| 235 | $metadata = wp_read_audio_metadata( $tmpFile ); |
| 236 | if ( isset( $metadata['length'] ) ) { |
| 237 | $length = $metadata['length']; |
| 238 | } |
| 239 | $data = file_get_contents( $tmpFile ); |
| 240 | unlink( $tmpFile ); |
| 241 | return [ 'data' => $data, 'length' => $length ]; |
| 242 | } |
| 243 | |
| 244 | public function runTranscribeQuery( $query ) { |
| 245 | $this->applyQueryParameters( $query ); |
| 246 | |
| 247 | // Prepare the request. |
| 248 | $modeEndpoint = $query->mode === 'translation' ? 'translations' : 'transcriptions'; |
| 249 | $url = 'https://api.openai.com/v1/audio/' . $modeEndpoint; |
| 250 | |
| 251 | // Check if the URL is valid. |
| 252 | if ( !filter_var( $query->url, FILTER_VALIDATE_URL ) ) { |
| 253 | throw new Exception( 'Invalid URL for transcription.' ); |
| 254 | } |
| 255 | |
| 256 | $audioData = $this->getAudio( $query->url ); |
| 257 | $body = array( |
| 258 | 'prompt' => $query->prompt, |
| 259 | 'model' => $query->model, |
| 260 | 'response_format' => 'text', |
| 261 | 'file' => basename( $query->url ), |
| 262 | 'data' => $audioData['data'] |
| 263 | ); |
| 264 | $headers = $this->buildHeaders( $query ); |
| 265 | $options = $this->buildOptions( $headers, null, $body ); |
| 266 | |
| 267 | // Perform the request |
| 268 | try { |
| 269 | $res = $this->runQuery( $url, $options ); |
| 270 | $data = $res['data']; |
| 271 | if ( empty( $data ) ) { |
| 272 | throw new Exception( 'Invalid data for transcription.' ); |
| 273 | } |
| 274 | $this->check_for_error( $data ); |
| 275 | $usage = $this->core->recordAudioUsage( $query->model, $audioData['length'] ); |
| 276 | $reply = new Meow_MWAI_Reply( $query ); |
| 277 | $reply->setUsage( $usage ); |
| 278 | $reply->setChoices( $data ); |
| 279 | return $reply; |
| 280 | } |
| 281 | catch ( Exception $e ) { |
| 282 | error_log( $e->getMessage() ); |
| 283 | throw new Exception( $e->getMessage() . " (OpenAI)" ); |
| 284 | } |
| 285 | } |
| 286 | |
| 287 | public function runEmbeddingQuery( $query ) { |
| 288 | $this->applyQueryParameters( $query ); |
| 289 | |
| 290 | // Prepare the request |
| 291 | $url = 'https://api.openai.com/v1/embeddings'; |
| 292 | $body = array( 'input' => $query->prompt, 'model' => $query->model ); |
| 293 | if ( $query->service === 'azure' ) { |
| 294 | $url = trailingslashit( $query->azureEndpoint ) . 'openai/deployments/' . |
| 295 | $query->azureDeployment . '/embeddings?' . $this->azureApiVersion; |
| 296 | $body = array( "input" => $query->prompt ); |
| 297 | } |
| 298 | $headers = $this->buildHeaders( $query ); |
| 299 | $options = $this->buildOptions( $headers, $body ); |
| 300 | |
| 301 | // Perform the request |
| 302 | try { |
| 303 | $res = $this->runQuery( $url, $options ); |
| 304 | $data = $res['data']; |
| 305 | if ( empty( $data ) || !isset( $data['data'] ) ) { |
| 306 | throw new Exception( 'Invalid data for embedding.' ); |
| 307 | } |
| 308 | $usage = $data['usage']; |
| 309 | $this->core->recordTokensUsage( $query->model, $usage['prompt_tokens'] ); |
| 310 | $reply = new Meow_MWAI_Reply( $query ); |
| 311 | $reply->setUsage( $usage ); |
| 312 | $reply->setChoices( $data['data'] ); |
| 313 | return $reply; |
| 314 | } |
| 315 | catch ( Exception $e ) { |
| 316 | error_log( $e->getMessage() ); |
| 317 | $service = $query->service === 'azure' ? 'Azure' : 'OpenAI'; |
| 318 | throw new Exception( $e->getMessage() . " ($service)" ); |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | public function runCompletionQuery( $query, $streamCallback = null ) { |
| 323 | $this->applyQueryParameters( $query ); |
| 324 | if ( !is_null( $streamCallback ) ) { |
| 325 | $this->streamCallback = $streamCallback; |
| 326 | add_action( 'http_api_curl', array( $this, 'stream_handler' ), 10, 3 ); |
| 327 | } |
| 328 | if ( $query->mode !== 'chat' && $query->mode !== 'completion' ) { |
| 329 | throw new Exception( 'Unknown mode for query: ' . $query->mode ); |
| 330 | } |
| 331 | |
| 332 | // Prepare the request |
| 333 | $body = array( |
| 334 | "model" => $query->model, |
| 335 | "stop" => $query->stop, |
| 336 | "n" => $query->maxResults, |
| 337 | "max_tokens" => $query->maxTokens, |
| 338 | "temperature" => $query->temperature, |
| 339 | "stream" => !is_null( $streamCallback ), |
| 340 | ); |
| 341 | if ( $query->mode === 'chat' ) { |
| 342 | $body['messages'] = $query->messages; |
| 343 | } |
| 344 | else if ( $query->mode === 'completion' ) { |
| 345 | $body['prompt'] = $query->getPrompt(); |
| 346 | } |
| 347 | $url = $query->service === 'azure' ? trailingslashit( $query->azureEndpoint ) . |
| 348 | 'openai/deployments/' . $query->azureDeployment : $this->openaiEndpoint; |
| 349 | if ( $query->mode === 'chat' ) { |
| 350 | $url .= $query->service === 'azure' ? '/chat/completions?' . $this->azureApiVersion : '/chat/completions'; |
| 351 | } |
| 352 | else if ($query->mode === 'completion') { |
| 353 | $url .= $query->service === 'azure' ? '/completions?' . $this->azureApiVersion : '/completions'; |
| 354 | } |
| 355 | $headers = $this->buildHeaders( $query ); |
| 356 | $options = $this->buildOptions( $headers, $body ); |
| 357 | |
| 358 | try { |
| 359 | $res = $this->runQuery( $url, $options, $streamCallback ); |
| 360 | $reply = new Meow_MWAI_Reply( $query ); |
| 361 | |
| 362 | // Streamed data |
| 363 | if ( !is_null( $streamCallback ) ) { |
| 364 | $data = [ |
| 365 | 'model' => $query->model, |
| 366 | 'usage' => [ |
| 367 | 'prompt_tokens' => $query->getPromptTokens(), |
| 368 | 'completion_tokens' => $this->streamedTokens |
| 369 | ], |
| 370 | 'choices' => [ [ 'message' => [ 'content' => $this->streamBuffer ] ] ] |
| 371 | ]; |
| 372 | } |
| 373 | // Regular data |
| 374 | else { |
| 375 | $data = $res['data']; |
| 376 | if ( !$data['model'] ) { |
| 377 | error_log( print_r( $data, 1 ) ); |
| 378 | throw new Exception( "Got an unexpected response from OpenAI. Check your PHP Error Logs." ); |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | try { |
| 383 | $usage = $this->core->recordTokensUsage( |
| 384 | $data['model'], |
| 385 | $data['usage']['prompt_tokens'], |
| 386 | $data['usage']['completion_tokens'] |
| 387 | ); |
| 388 | } |
| 389 | catch ( Exception $e ) { |
| 390 | error_log( $e->getMessage() ); |
| 391 | } |
| 392 | $reply->setUsage( $usage ); |
| 393 | $reply->setChoices( $data['choices'] ); |
| 394 | return $reply; |
| 395 | } |
| 396 | catch ( Exception $e ) { |
| 397 | error_log( $e->getMessage() ); |
| 398 | $service = $query->service === 'azure' ? 'Azure' : 'OpenAI'; |
| 399 | throw new Exception( $e->getMessage() . " ($service)" ); |
| 400 | } |
| 401 | } |
| 402 | |
| 403 | // Request to DALL-E API |
| 404 | public function runImagesQuery( $query ) { |
| 405 | $this->applyQueryParameters( $query ); |
| 406 | |
| 407 | // Prepare the request |
| 408 | $url = 'https://api.openai.com/v1/images/generations'; |
| 409 | $body = array( |
| 410 | "prompt" => $query->prompt, |
| 411 | "n" => $query->maxResults, |
| 412 | "size" => '1024x1024', |
| 413 | ); |
| 414 | if ( $query->service === 'azure' ) { |
| 415 | //$url = trailingslashit( $query->azureEndpoint ) . 'dalle/text-to-image?' . $this->azureApiVersion; |
| 416 | $url = trailingslashit( $query->azureEndpoint ) . 'dalle/text-to-image?api-version=2022-08-03-preview'; |
| 417 | $body = array( |
| 418 | "caption" => $query->prompt, |
| 419 | //"n" => $query->maxResults, |
| 420 | "resolution" => '1024x1024', |
| 421 | ); |
| 422 | } |
| 423 | $headers = $this->buildHeaders( $query ); |
| 424 | $options = $this->buildOptions( $headers, $body ); |
| 425 | |
| 426 | // Perform the request |
| 427 | try { |
| 428 | $res = $this->runQuery( $url, $options ); |
| 429 | $data = $res['data']; |
| 430 | $choices = []; |
| 431 | |
| 432 | if ( $query->service === 'azure' ) { |
| 433 | if ( !isset( $res['headers']['operation-location'] ) || !isset( $res['headers']['retry-after'] ) ) { |
| 434 | throw new Exception( 'Invalid response from Azure.' ); |
| 435 | } |
| 436 | $operationLocation = $res['headers']['operation-location']; |
| 437 | $retryAfter = (int)$res['headers']['retry-after']; |
| 438 | $status = $data['status']; |
| 439 | $options = $this->buildOptions( $headers, null ); |
| 440 | $options['method'] = 'GET'; |
| 441 | while ( $status !== 'Succeeded' ) { |
| 442 | sleep( $retryAfter ); |
| 443 | $res = $this->runQuery( $operationLocation, $options ); |
| 444 | $data = $res['data']; |
| 445 | $status = $data['status']; |
| 446 | } |
| 447 | $result = $data['result']; |
| 448 | $contentUrl = $result['contentUrl']; |
| 449 | $choices = [ [ 'url' => $contentUrl ] ]; |
| 450 | |
| 451 | } |
| 452 | else { |
| 453 | // OpenAI returns an array of URLs |
| 454 | $choices = $data['data']; |
| 455 | } |
| 456 | |
| 457 | $reply = new Meow_MWAI_Reply( $query ); |
| 458 | $usage = $this->core->recordImagesUsage( "dall-e", "1024x1024", $query->maxResults ); |
| 459 | $reply->setUsage( $usage ); |
| 460 | $reply->setChoices( $choices ); |
| 461 | $reply->setType( 'images' ); |
| 462 | return $reply; |
| 463 | } |
| 464 | catch ( Exception $e ) { |
| 465 | error_log( $e->getMessage() ); |
| 466 | throw new Exception( $e->getMessage() . " (OpenAI)" ); |
| 467 | } |
| 468 | } |
| 469 | |
| 470 | |
| 471 | /* |
| 472 | This is the rest of the OpenAI API support, not related to the models directly. |
| 473 | */ |
| 474 | |
| 475 | // Check if there are errors in the response from OpenAI, and throw an exception if so. |
| 476 | public function handleResponseErrors( $data ) { |
| 477 | if ( isset( $data['error'] ) ) { |
| 478 | $message = $data['error']['message']; |
| 479 | if ( preg_match( '/API key provided(: .*)\./', $message, $matches ) ) { |
| 480 | $message = str_replace( $matches[1], '', $message ); |
| 481 | } |
| 482 | throw new Exception( $message ); |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | public function listFiles() |
| 487 | { |
| 488 | return $this->run( 'GET', '/files' ); |
| 489 | } |
| 490 | |
| 491 | function getSuffixForModel($model) |
| 492 | { |
| 493 | preg_match("/:([a-zA-Z0-9\-]{1,40})-([0-9]{4})-([0-9]{2})-([0-9]{2})/", $model, $matches); |
| 494 | if ( count( $matches ) > 0 ) { |
| 495 | return $matches[1]; |
| 496 | } |
| 497 | return 'N/A'; |
| 498 | } |
| 499 | |
| 500 | function getBaseModel($model) |
| 501 | { |
| 502 | preg_match("/:([a-zA-Z0-9\-]{1,40})-([0-9]{4})-([0-9]{2})-([0-9]{2})/", $model, $matches); |
| 503 | if (count($matches) > 0) { |
| 504 | return $matches[1]; |
| 505 | } |
| 506 | return 'N/A'; |
| 507 | } |
| 508 | |
| 509 | public function listDeletedFineTunes() |
| 510 | { |
| 511 | $finetunes = $this->listFineTunes(); |
| 512 | $deleted = []; |
| 513 | |
| 514 | foreach ( $finetunes as $finetune ) { |
| 515 | $name = $finetune['model']; |
| 516 | $isSucceeded = $finetune['status'] === 'succeeded'; |
| 517 | if ( $isSucceeded ) { |
| 518 | try { |
| 519 | $finetune = $this->getModel( $name ); |
| 520 | } |
| 521 | catch ( Exception $e ) { |
| 522 | $deleted[] = $name; |
| 523 | } |
| 524 | } |
| 525 | } |
| 526 | |
| 527 | $this->core->update_option( 'openai_finetunes_deleted', $deleted ); |
| 528 | return $deleted; |
| 529 | } |
| 530 | |
| 531 | public function listFineTunes() |
| 532 | { |
| 533 | $res = $this->run( 'GET', '/fine-tunes' ); |
| 534 | $finetunes = $res['data']; |
| 535 | |
| 536 | // Add suffix |
| 537 | $finetunes = array_map( function ( $finetune ) { |
| 538 | $finetune['suffix'] = $this->getSuffixForModel( $finetune['fine_tuned_model'] ); |
| 539 | $finetune['createdOn'] = date( 'Y-m-d H:i:s', $finetune['created_at'] ); |
| 540 | $finetune['updatedOn'] = date( 'Y-m-d H:i:s', $finetune['updated_at'] ); |
| 541 | $finetune['base_model'] = $finetune['model']; |
| 542 | $finetune['model'] = $finetune['fine_tuned_model']; |
| 543 | unset( $finetune['object'] ); |
| 544 | unset( $finetune['hyperparams'] ); |
| 545 | unset( $finetune['result_files'] ); |
| 546 | unset( $finetune['training_files'] ); |
| 547 | unset( $finetune['validation_files'] ); |
| 548 | unset( $finetune['created_at'] ); |
| 549 | unset( $finetune['updated_at'] ); |
| 550 | unset( $finetune['fine_tuned_model'] ); |
| 551 | return $finetune; |
| 552 | }, $finetunes); |
| 553 | |
| 554 | usort( $finetunes, function ( $a, $b ) { |
| 555 | return strtotime( $b['createdOn'] ) - strtotime( $a['createdOn'] ); |
| 556 | }); |
| 557 | |
| 558 | $this->core->update_option( 'openai_finetunes', $finetunes ); |
| 559 | return $finetunes; |
| 560 | } |
| 561 | |
| 562 | public function moderate( $input ) { |
| 563 | $result = $this->run('POST', '/moderations', [ |
| 564 | 'input' => $input |
| 565 | ]); |
| 566 | return $result; |
| 567 | } |
| 568 | |
| 569 | public function uploadFile( $filename, $data ) |
| 570 | { |
| 571 | $result = $this->run('POST', '/files', null, [ |
| 572 | 'purpose' => 'fine-tune', |
| 573 | 'data' => $data, |
| 574 | 'file' => $filename |
| 575 | ] ); |
| 576 | return $result; |
| 577 | } |
| 578 | |
| 579 | public function deleteFile( $fileId ) |
| 580 | { |
| 581 | return $this->run('DELETE', '/files/' . $fileId); |
| 582 | } |
| 583 | |
| 584 | public function getModel( $modelId ) |
| 585 | { |
| 586 | return $this->run('GET', '/models/' . $modelId); |
| 587 | } |
| 588 | |
| 589 | public function cancelFineTune( $fineTuneId ) |
| 590 | { |
| 591 | return $this->run('POST', '/fine-tunes/' . $fineTuneId . '/cancel'); |
| 592 | } |
| 593 | |
| 594 | public function deleteFineTune( $modelId ) |
| 595 | { |
| 596 | return $this->run('DELETE', '/models/' . $modelId); |
| 597 | } |
| 598 | |
| 599 | public function downloadFile( $fileId ) |
| 600 | { |
| 601 | return $this->run('GET', '/files/' . $fileId . '/content', null, null, false); |
| 602 | } |
| 603 | |
| 604 | public function fineTuneFile( $fileId, $model, $suffix, $hyperparams = [] ) |
| 605 | { |
| 606 | $n_epochs = isset( $hyperparams['nEpochs'] ) ? (int)$hyperparams['nEpochs'] : 4; |
| 607 | $batch_size = isset( $hyperparams['batchSize'] ) ? (int)$hyperparams['batchSize'] : null; |
| 608 | $arguments = [ |
| 609 | 'training_file' => $fileId, |
| 610 | 'model' => $model, |
| 611 | 'suffix' => $suffix, |
| 612 | 'n_epochs' => $n_epochs |
| 613 | ]; |
| 614 | if ( $batch_size ) { |
| 615 | $arguments['batch_size'] = $batch_size; |
| 616 | } |
| 617 | $result = $this->run('POST', '/fine-tunes', $arguments); |
| 618 | return $result; |
| 619 | } |
| 620 | |
| 621 | /** |
| 622 | * Build the body of a form request. |
| 623 | * If the field name is 'file', then the field value is the filename of the file to upload. |
| 624 | * The file contents are taken from the 'data' field. |
| 625 | * |
| 626 | * @param array $fields |
| 627 | * @param string $boundary |
| 628 | * @return string |
| 629 | */ |
| 630 | public function buildFormBody( $fields, $boundary ) |
| 631 | { |
| 632 | $body = ''; |
| 633 | foreach ( $fields as $name => $value ) { |
| 634 | if ( $name == 'data' ) { |
| 635 | continue; |
| 636 | } |
| 637 | $body .= "--$boundary\r\n"; |
| 638 | $body .= "Content-Disposition: form-data; name=\"$name\""; |
| 639 | if ( $name == 'file' ) { |
| 640 | $body .= "; filename=\"{$value}\"\r\n"; |
| 641 | $body .= "Content-Type: application/json\r\n\r\n"; |
| 642 | $body .= $fields['data'] . "\r\n"; |
| 643 | } |
| 644 | else { |
| 645 | $body .= "\r\n\r\n$value\r\n"; |
| 646 | } |
| 647 | } |
| 648 | $body .= "--$boundary--\r\n"; |
| 649 | return $body; |
| 650 | } |
| 651 | |
| 652 | /** |
| 653 | * Run a request to the OpenAI API. |
| 654 | * Fore more information about the $formFields, refer to the buildFormBody method. |
| 655 | * |
| 656 | * @param string $method POST, PUT, GET, DELETE... |
| 657 | * @param string $url The API endpoint |
| 658 | * @param array $query The query parameters (json) |
| 659 | * @param array $formFields The form fields (multipart/form-data) |
| 660 | * @param bool $json Whether to return the response as json or not |
| 661 | * @return array |
| 662 | */ |
| 663 | public function run( $method, $url, $query = null, $formFields = null, $json = true ) |
| 664 | { |
| 665 | $apiKey = $this->localApiKey; |
| 666 | $headers = "Content-Type: application/json\r\n" . "Authorization: Bearer " . $apiKey . "\r\n"; |
| 667 | $body = $query ? json_encode( $query ) : null; |
| 668 | if ( !empty( $formFields ) ) { |
| 669 | $boundary = wp_generate_password (24, false ); |
| 670 | $headers = [ |
| 671 | 'Content-Type' => 'multipart/form-data; boundary=' . $boundary, |
| 672 | 'Authorization' => 'Bearer ' . $this->localApiKey, |
| 673 | ]; |
| 674 | $body = $this->buildFormBody( $formFields, $boundary ); |
| 675 | } |
| 676 | |
| 677 | $url = 'https://api.openai.com/v1' . $url; |
| 678 | $options = [ |
| 679 | "headers" => $headers, |
| 680 | "method" => $method, |
| 681 | "timeout" => MWAI_TIMEOUT, |
| 682 | "body" => $body, |
| 683 | "sslverify" => false |
| 684 | ]; |
| 685 | |
| 686 | try { |
| 687 | $response = wp_remote_request( $url, $options ); |
| 688 | if ( is_wp_error( $response ) ) { |
| 689 | throw new Exception( $response->get_error_message() ); |
| 690 | } |
| 691 | $response = wp_remote_retrieve_body( $response ); |
| 692 | $data = $json ? json_decode( $response, true ) : $response; |
| 693 | $this->handleResponseErrors( $data ); |
| 694 | return $data; |
| 695 | } |
| 696 | catch ( Exception $e ) { |
| 697 | error_log( $e->getMessage() ); |
| 698 | throw new Exception( $e->getMessage() . " (OpenAI)" ); |
| 699 | } |
| 700 | } |
| 701 | |
| 702 | private function calculatePrice( $modelFamily, $units, $option = null, $finetune = false ) |
| 703 | { |
| 704 | foreach ( MWAI_OPENAI_MODELS as $currentModel ) { |
| 705 | if ( $currentModel['family'] === $modelFamily ) { |
| 706 | if ( $currentModel['type'] === 'image' ) { |
| 707 | if ( !$option ) { |
| 708 | error_log( "AI Engine: Image models require an option." ); |
| 709 | return null; |
| 710 | } |
| 711 | else { |
| 712 | foreach ( $currentModel['options'] as $imageType ) { |
| 713 | if ( $imageType['option'] == $option ) { |
| 714 | return $imageType['price'] * $units; |
| 715 | } |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | else { |
| 720 | if ( $finetune ) { |
| 721 | // The price is doubled for finetuned models. |
| 722 | return $currentModel['finetune']['price'] * $currentModel['unit'] * $units * 2; |
| 723 | } |
| 724 | return $currentModel['price'] * $currentModel['unit'] * $units; |
| 725 | } |
| 726 | } |
| 727 | } |
| 728 | error_log( "AI Engine: Invalid family ($modelFamily)." ); |
| 729 | return null; |
| 730 | } |
| 731 | |
| 732 | public function getPrice( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) |
| 733 | { |
| 734 | $model = $query->model; |
| 735 | $family = null; |
| 736 | $units = 0; |
| 737 | $option = null; |
| 738 | $currentModel = null; |
| 739 | $priceRules = null; |
| 740 | |
| 741 | $finetune = false; |
| 742 | if ( is_a( $query, 'Meow_MWAI_Query_Text' ) ) { |
| 743 | // Finetuned models |
| 744 | if ( preg_match('/^([a-zA-Z]{0,32}):/', $model, $matches ) ) { |
| 745 | $family = $matches[1]; |
| 746 | $finetune = true; |
| 747 | } |
| 748 | // Standard models |
| 749 | else { |
| 750 | foreach ( MWAI_OPENAI_MODELS as $currentModel ) { |
| 751 | if ( $currentModel['model'] == $model ) { |
| 752 | $family = $currentModel['family']; |
| 753 | $priceRules = isset( $currentModel['priceRules'] ) ? $currentModel['priceRules'] : null; |
| 754 | break; |
| 755 | } |
| 756 | } |
| 757 | } |
| 758 | if ( empty( $family ) ) { |
| 759 | error_log("AI Engine: Cannot find the base model for $model."); |
| 760 | return null; |
| 761 | } |
| 762 | if ( !empty( $priceRules ) ) { |
| 763 | if ( $priceRules === "completion_x2" ) { |
| 764 | $units = $reply->getPromptTokens(); |
| 765 | $units += $reply->getCompletionTokens() * 2; |
| 766 | return $this->calculatePrice( $family, $units, $option, $finetune ); |
| 767 | } |
| 768 | else { |
| 769 | error_log("AI Engine: Unknown price rules ($priceRules) for $model."); |
| 770 | return null; |
| 771 | } |
| 772 | } |
| 773 | else { |
| 774 | $units = $reply->getTotalTokens(); |
| 775 | return $this->calculatePrice( $family, $units, $option, $finetune ); |
| 776 | } |
| 777 | } |
| 778 | else if ( is_a( $query, 'Meow_MWAI_Query_Image' ) ) { |
| 779 | $family = 'dall-e'; |
| 780 | $units = $query->maxResults; |
| 781 | $option = "1024x1024"; |
| 782 | return $this->calculatePrice( $family, $units, $option, $finetune ); |
| 783 | } |
| 784 | else if ( is_a( $query, 'Meow_MWAI_Query_Transcribe' ) ) { |
| 785 | $family = 'whisper'; |
| 786 | $units = $reply->getUnits(); |
| 787 | return $this->calculatePrice( $family, $units, $option, $finetune ); |
| 788 | } |
| 789 | else if ( is_a( $query, 'Meow_MWAI_Query_Embed' ) ) { |
| 790 | foreach ( MWAI_OPENAI_MODELS as $currentModel ) { |
| 791 | if ( $currentModel['model'] == $model ) { |
| 792 | $family = $currentModel['family']; |
| 793 | break; |
| 794 | } |
| 795 | } |
| 796 | $units = $reply->getTotalTokens(); |
| 797 | return $this->calculatePrice( $family, $units, $option, $finetune ); |
| 798 | } |
| 799 | error_log("AI Engine: Cannot calculate price for $model."); |
| 800 | return null; |
| 801 | } |
| 802 | |
| 803 | public function getIncidents() { |
| 804 | $url = 'https://status.openai.com/history.rss'; |
| 805 | $response = wp_remote_get( $url ); |
| 806 | if ( is_wp_error( $response ) ) { |
| 807 | throw new Exception( $response->get_error_message() ); |
| 808 | } |
| 809 | $response = wp_remote_retrieve_body( $response ); |
| 810 | $xml = simplexml_load_string( $response ); |
| 811 | $incidents = array(); |
| 812 | $oneWeekAgo = time() - 5 * 24 * 60 * 60; |
| 813 | foreach ( $xml->channel->item as $item ) { |
| 814 | $date = strtotime( $item->pubDate ); |
| 815 | if ( $date > $oneWeekAgo ) { |
| 816 | $incidents[] = array( |
| 817 | 'title' => (string) $item->title, |
| 818 | 'description' => (string) $item->description, |
| 819 | 'date' => $date |
| 820 | ); |
| 821 | } |
| 822 | } |
| 823 | return $incidents; |
| 824 | } |
| 825 | } |
| 826 |