core.php
2 years ago
factory.php
2 years ago
google.php
2 years ago
huggingface.php
2 years ago
openai.php
2 years ago
openrouter.php
2 years ago
google.php
501 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_Google extends Meow_MWAI_Engines_Core |
| 4 | { |
| 5 | // Base (Google) |
| 6 | protected $apiKey = null; |
| 7 | protected $region = null; |
| 8 | protected $projectId = null; |
| 9 | protected $endpoint = null; |
| 10 | |
| 11 | // Response |
| 12 | protected $inModel = null; |
| 13 | protected $inId = null; |
| 14 | |
| 15 | // Streaming |
| 16 | private $streamTemporaryBuffer = ""; |
| 17 | private $streamBuffer = ""; |
| 18 | private $streamContent = ""; |
| 19 | private $streamFunctionCall = null; |
| 20 | private $streamCallback = null; |
| 21 | |
| 22 | public function __construct( $core, $env ) |
| 23 | { |
| 24 | parent::__construct( $core, $env ); |
| 25 | $this->set_environment(); |
| 26 | } |
| 27 | |
| 28 | protected function set_environment() { |
| 29 | $env = $this->env; |
| 30 | $this->apiKey = $env['apikey']; |
| 31 | if ( $this->envType === 'google' ) { |
| 32 | // https://{REGION}-aiplatform.googleapis.com/v1/projects/{PROJECT_ID}/locations/{REGION}/publishers/google |
| 33 | $this->region = $env['region']; |
| 34 | $this->projectId = $env['projectId']; |
| 35 | |
| 36 | // Google Cloud API |
| 37 | // $this->endpoint = apply_filters( 'mwai_google_endpoint', "https://{$this->region}-aiplatform.googleapis.com/v1/projects/{$this->projectId}/locations/{$this->region}/publishers/google", $this->env ); |
| 38 | |
| 39 | // Generative Language API (less issues with auth) |
| 40 | $this->endpoint = apply_filters( 'mwai_google_endpoint', "https://generativelanguage.googleapis.com/v1", $this->env ); |
| 41 | } |
| 42 | else { |
| 43 | throw new Exception( 'Unknown environment type: ' . $this->envType ); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | // Check for a JSON-formatted error in the data, and throw an exception if it's the case. |
| 48 | function check_for_error( $data ) { |
| 49 | if ( strpos( $data, 'error' ) === false ) { |
| 50 | return; |
| 51 | } |
| 52 | if ( strpos( $data, 'data: ' ) === 0 ) { |
| 53 | $jsonPart = substr( $data, strlen( 'data: ' ) ); |
| 54 | } |
| 55 | else { |
| 56 | $jsonPart = $data; |
| 57 | } |
| 58 | $json = json_decode( $jsonPart, true ); |
| 59 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 60 | if ( isset( $json['error'] ) ) { |
| 61 | $error = $json['error']; |
| 62 | $code = $error['code']; |
| 63 | $message = $error['message']; |
| 64 | throw new Exception( "Error $code: $message" ); |
| 65 | } |
| 66 | } |
| 67 | } |
| 68 | |
| 69 | private function build_messages( $query ) { |
| 70 | $messages = []; |
| 71 | |
| 72 | // First, we need to add the first message (the instructions). |
| 73 | if ( !empty( $query->instructions ) ) { |
| 74 | $messages[] = [ 'role' => 'model', 'parts' => [ [ 'text' => $query->instructions ] ] ]; |
| 75 | } |
| 76 | |
| 77 | // Then, if any, we need to add the 'messages', they are already formatted. |
| 78 | foreach ( $query->messages as $message ) { |
| 79 | // messages contains role and content (as OpenAI does it, but we need to convert it to Google's format) |
| 80 | // role's assistant should be model, and user should be user. |
| 81 | $newMessage = [ 'role' => $message['role'], 'parts' => [] ]; |
| 82 | if ( isset( $message['content'] ) ) { |
| 83 | $newMessage['parts'][] = [ 'text' => $message['content'] ]; |
| 84 | } |
| 85 | if ( $newMessage['role'] === 'assistant' ) { |
| 86 | $newMessage['role'] = 'model'; |
| 87 | } |
| 88 | $messages[] = $newMessage; |
| 89 | } |
| 90 | |
| 91 | // If there is a context, we need to add it. |
| 92 | if ( !empty( $query->context ) ) { |
| 93 | $messages[] = [ 'role' => 'model', 'parts' => [ [ 'text' => $query->context ] ] ]; |
| 94 | } |
| 95 | |
| 96 | // Finally, we need to add the message, but if there is an image, we need to add it as a model message. |
| 97 | $fileUrl = $query->get_file_url(); |
| 98 | if ( !empty( $fileUrl ) ) { |
| 99 | // If the fileUrl actually is data (starts with "data:") |
| 100 | $isData = strpos( $fileUrl, 'data:' ) === 0; |
| 101 | if ( $isData ) { |
| 102 | $messages[] = [ |
| 103 | 'role' => 'user', |
| 104 | 'parts' => [ |
| 105 | [ |
| 106 | "inlineData" => [ |
| 107 | "mimeType" => "image/jpeg", |
| 108 | "data" => $query->file // We need to be careful here to get only the data part |
| 109 | ] |
| 110 | ], |
| 111 | [ |
| 112 | "text" => $query->get_message() |
| 113 | ] |
| 114 | ] |
| 115 | ]; |
| 116 | } |
| 117 | else { |
| 118 | $messages[] = [ |
| 119 | 'role' => 'user', |
| 120 | 'parts' => [ |
| 121 | [ |
| 122 | "fileData" => [ |
| 123 | "mimeType" => "image/jpeg", |
| 124 | "fileUri" => $fileUrl |
| 125 | ] |
| 126 | ], |
| 127 | [ |
| 128 | "text" => $query->get_message() |
| 129 | ] |
| 130 | ] |
| 131 | ]; |
| 132 | } |
| 133 | // TODO: Gemini doesn't support multiturn chat with Vision... |
| 134 | // So we only keep the message that goes with the image. |
| 135 | $messages = array_slice( $messages, -1 ); |
| 136 | } |
| 137 | else { |
| 138 | $messages[] = [ 'role' => 'user', 'parts' => [ [ 'text' => $query->get_message() ] ] ]; |
| 139 | } |
| 140 | |
| 141 | // Streamline the messages |
| 142 | $messages = $this->streamline_messages( $messages, 'model', 'parts' ); |
| 143 | |
| 144 | return $messages; |
| 145 | } |
| 146 | |
| 147 | /* |
| 148 | This used to be in the core.php, but since it's relative to OpenAI, it's better to have it here. |
| 149 | */ |
| 150 | |
| 151 | public function stream_handler( $handle, $args, $url ) { |
| 152 | curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, false ); |
| 153 | curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, false ); |
| 154 | |
| 155 | // Maybe we could get some info from headers, as for now, there is only the model. |
| 156 | // curl_setopt( $handle, CURLOPT_HEADERFUNCTION, function( $curl, $headerLine ) { |
| 157 | // $line = trim( $headerLine ); |
| 158 | // return strlen( $headerLine ); |
| 159 | // }); |
| 160 | |
| 161 | curl_setopt( $handle, CURLOPT_WRITEFUNCTION, function ( $curl, $data ) { |
| 162 | $length = strlen( $data ); |
| 163 | |
| 164 | // FOR DEBUG: |
| 165 | // preg_match_all( '/"content":"(.*?)"/', $data, $matches ); |
| 166 | // $contents = $matches[1]; |
| 167 | // foreach ( $contents as $content ) { |
| 168 | // error_log( "Content: $content" ); |
| 169 | // } |
| 170 | |
| 171 | // Error Management |
| 172 | $this->check_for_error( $data ); |
| 173 | |
| 174 | // Bufferize the unfinished stream (if it's the case) |
| 175 | $this->streamTemporaryBuffer .= $data; |
| 176 | $this->streamBuffer .= $data; |
| 177 | $lines = explode( "\n", $this->streamTemporaryBuffer ); |
| 178 | if ( substr( $this->streamTemporaryBuffer, -1 ) !== "\n" ) { |
| 179 | $this->streamTemporaryBuffer = array_pop( $lines ); |
| 180 | } |
| 181 | else { |
| 182 | $this->streamTemporaryBuffer = ""; |
| 183 | } |
| 184 | |
| 185 | foreach ( $lines as $line ) { |
| 186 | if ( $line === "" ) { |
| 187 | continue; |
| 188 | } |
| 189 | if ( strpos( $line, 'data: ' ) === 0 ) { |
| 190 | $line = substr( $line, 6 ); |
| 191 | $json = json_decode( $line, true ); |
| 192 | |
| 193 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 194 | $content = null; |
| 195 | // Get the content |
| 196 | if ( isset( $json['candidates'][0]['content']['parts'][0]['text'] ) ) { |
| 197 | $content = $json['candidates'][0]['content']['parts'][0]['text']; |
| 198 | } |
| 199 | // else if ( isset( $json['candidates'][0]['delta']['content'] ) ) { |
| 200 | // $content = $json['candidates'][0]['delta']['content']; |
| 201 | // } |
| 202 | if ( $content !== null && $content !== "" ) { |
| 203 | $this->streamContent .= $content; |
| 204 | call_user_func( $this->streamCallback, $content ); |
| 205 | } |
| 206 | } |
| 207 | else { |
| 208 | $this->streamTemporaryBuffer .= $line . "\n"; |
| 209 | } |
| 210 | } |
| 211 | } |
| 212 | return $length; |
| 213 | }); |
| 214 | } |
| 215 | |
| 216 | protected function build_headers( $query ) { |
| 217 | if ( $query->apiKey ) { |
| 218 | $this->apiKey = $query->apiKey; |
| 219 | } |
| 220 | if ( empty( $this->apiKey ) ) { |
| 221 | throw new Exception( 'No API Key provided. Please visit the Settings.' ); |
| 222 | } |
| 223 | $headers = array( |
| 224 | 'Content-Type' => 'application/json', |
| 225 | ); |
| 226 | return $headers; |
| 227 | } |
| 228 | |
| 229 | protected function build_options( $headers, $json = null, $forms = null, $method = 'POST' ) { |
| 230 | $body = null; |
| 231 | if ( !empty( $forms ) ) { |
| 232 | throw new Exception( 'No support for form-data requests yet.' ); |
| 233 | // $boundary = wp_generate_password ( 24, false ); |
| 234 | // $headers['Content-Type'] = 'multipart/form-data; boundary=' . $boundary; |
| 235 | // $body = $this->build_form_body( $forms, $boundary ); |
| 236 | } |
| 237 | else if ( !empty( $json ) ) { |
| 238 | $body = json_encode( $json ); |
| 239 | } |
| 240 | $options = array( |
| 241 | 'headers' => $headers, |
| 242 | 'method' => $method, |
| 243 | 'timeout' => MWAI_TIMEOUT, |
| 244 | 'body' => $body, |
| 245 | 'sslverify' => false |
| 246 | ); |
| 247 | return $options; |
| 248 | } |
| 249 | |
| 250 | public function run_query( $url, $options, $isStream = false ) { |
| 251 | try { |
| 252 | $options['stream'] = $isStream; |
| 253 | if ( $isStream ) { |
| 254 | $options['filename'] = tempnam( sys_get_temp_dir(), 'mwai-stream-' ); |
| 255 | } |
| 256 | $res = wp_remote_get( $url, $options ); |
| 257 | |
| 258 | if ( is_wp_error( $res ) ) { |
| 259 | throw new Exception( $res->get_error_message() ); |
| 260 | } |
| 261 | |
| 262 | if ( $isStream ) { |
| 263 | return [ 'stream' => true ]; |
| 264 | } |
| 265 | |
| 266 | $response = wp_remote_retrieve_body( $res ); |
| 267 | $headersRes = wp_remote_retrieve_headers( $res ); |
| 268 | $headers = $headersRes->getAll(); |
| 269 | |
| 270 | // Check if Content-Type is 'multipart/form-data' or 'text/plain' |
| 271 | // If so, we don't need to decode the response |
| 272 | $normalizedHeaders = array_change_key_case( $headers, CASE_LOWER ); |
| 273 | $resContentType = $normalizedHeaders['content-type'] ?? ''; |
| 274 | if ( strpos( $resContentType, 'multipart/form-data' ) !== false || strpos( $resContentType, 'text/plain' ) !== false ) { |
| 275 | return [ 'stream' => false, 'headers' => $headers, 'data' => $response ]; |
| 276 | } |
| 277 | |
| 278 | $data = json_decode( $response, true ); |
| 279 | $this->handle_response_errors( $data ); |
| 280 | return [ 'headers' => $headers, 'data' => $data ]; |
| 281 | } |
| 282 | catch ( Exception $e ) { |
| 283 | error_log( $e->getMessage() ); |
| 284 | throw $e; |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | public function run_completion_query( $query, $streamCallback = null ) : Meow_MWAI_Reply { |
| 289 | if ( !is_null( $streamCallback ) ) { |
| 290 | $this->streamCallback = $streamCallback; |
| 291 | add_action( 'http_api_curl', array( $this, 'stream_handler' ), 10, 3 ); |
| 292 | } |
| 293 | |
| 294 | $body = array( |
| 295 | "generationConfig" => [ |
| 296 | "candidateCount" => $query->maxResults, |
| 297 | "maxOutputTokens" => $query->maxTokens, |
| 298 | "temperature" => $query->temperature, |
| 299 | "stopSequences" => [], |
| 300 | ], |
| 301 | ); |
| 302 | |
| 303 | // if ( !empty( $query->stop ) ) { |
| 304 | // $body['generationConfig']['stop'] = $query->stop; |
| 305 | // } |
| 306 | |
| 307 | // if ( !empty( $query->responseFormat ) ) { |
| 308 | // if ( $query->responseFormat === 'json' ) { |
| 309 | // $body['response_format'] = [ 'type' => 'json_object' ]; |
| 310 | // } |
| 311 | // } |
| 312 | |
| 313 | if ( !empty( $query->functions ) ) { |
| 314 | throw new Exception( 'AI Engine doesn\'t support Function Calling with Google models yet.' ); |
| 315 | //$body['functions'] = $query->functions; |
| 316 | //$body['function_call'] = $query->functionCall; |
| 317 | } |
| 318 | |
| 319 | if ( $query->mode !== 'chat' ) { |
| 320 | throw new Exception( 'Google models only support chat mode.' ); |
| 321 | } |
| 322 | |
| 323 | $body['contents'] = $this->build_messages( $query ); |
| 324 | $url = $this->endpoint; |
| 325 | |
| 326 | // Streaming: |
| 327 | // $url .= '/models/' . $query->model . ':streamGenerateContent'; |
| 328 | |
| 329 | $url .= '/models/' . $query->model . ':generateContent'; |
| 330 | |
| 331 | // If streaming is enabled, we need to use the SSE endpoint. |
| 332 | if ( !is_null( $streamCallback ) ) { |
| 333 | $url .= '?alt=sse'; |
| 334 | } |
| 335 | |
| 336 | // Add the API key |
| 337 | if ( strpos( $url, '?' ) === false ) { |
| 338 | $url .= '?key=' . $this->apiKey; |
| 339 | } |
| 340 | else { |
| 341 | $url .= '&key=' . $this->apiKey; |
| 342 | } |
| 343 | |
| 344 | $headers = $this->build_headers( $query ); |
| 345 | $options = $this->build_options( $headers, $body ); |
| 346 | |
| 347 | try { |
| 348 | $res = $this->run_query( $url, $options, $streamCallback ); |
| 349 | $reply = new Meow_MWAI_Reply( $query ); |
| 350 | |
| 351 | $returned_id = null; |
| 352 | $returned_model = $this->inModel; |
| 353 | $returned_in_tokens = null; |
| 354 | $returned_out_tokens = null; |
| 355 | $returned_choices = []; |
| 356 | |
| 357 | if ( !is_null( $streamCallback ) ) { |
| 358 | // Streamed data |
| 359 | if ( empty( $this->streamContent ) ) { |
| 360 | $json = json_decode( $this->streamBuffer, true ); |
| 361 | if ( isset( $json['error']['message'] ) ) { |
| 362 | throw new Exception( $json['error']['message'] ); |
| 363 | } |
| 364 | } |
| 365 | $returned_id = $this->inId; |
| 366 | $returned_model = $this->inModel ? $this->inModel : $query->model; |
| 367 | $returned_choices = [ |
| 368 | [ |
| 369 | 'message' => [ |
| 370 | 'content' => $this->streamContent, |
| 371 | 'function_call' => $this->streamFunctionCall |
| 372 | ] |
| 373 | ] |
| 374 | ]; |
| 375 | } |
| 376 | else { |
| 377 | // Regular data |
| 378 | $data = $res['data']; |
| 379 | if ( empty( $data ) ) { |
| 380 | throw new Exception( 'No content received (res is null).' ); |
| 381 | } |
| 382 | |
| 383 | // Not much information from Google's API :( |
| 384 | $returned_id = null; |
| 385 | $returned_model = $query->model; |
| 386 | $returned_in_tokens = 0; |
| 387 | $returned_out_tokens = 0; |
| 388 | |
| 389 | // We should return the candidates formatted as OpenAI does it. |
| 390 | $returned_choices = []; |
| 391 | if ( isset( $data['candidates'] ) ) { |
| 392 | $candidates = $data['candidates']; |
| 393 | foreach ( $candidates as $candidate ) { |
| 394 | $content = $candidate['content']; |
| 395 | $text = $content['parts'][0]['text']; |
| 396 | $returned_choices[] = [ 'role' => 'assistant', 'text' => $text ]; |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | // Set the results. |
| 402 | $reply->set_choices( $returned_choices ); |
| 403 | if ( !empty( $returned_id ) ) { |
| 404 | $reply->set_id( $returned_id ); |
| 405 | } |
| 406 | |
| 407 | // Handle tokens. |
| 408 | $this->handle_tokens_usage( $reply, $query, $returned_model, $returned_in_tokens, $returned_out_tokens ); |
| 409 | |
| 410 | return $reply; |
| 411 | } |
| 412 | catch ( Exception $e ) { |
| 413 | error_log( $e->getMessage() ); |
| 414 | $message = "From Google: " . $e->getMessage(); |
| 415 | throw new Exception( $message ); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | public function handle_tokens_usage( $reply, $query, $returned_model, $returned_in_tokens, $returned_out_tokens ) { |
| 420 | $returned_in_tokens = !is_null( $returned_in_tokens ) ? $returned_in_tokens : $reply->get_in_tokens( $query ); |
| 421 | $returned_out_tokens = !is_null( $returned_out_tokens ) ? $returned_out_tokens : $reply->get_out_tokens(); |
| 422 | $usage = $this->core->record_tokens_usage( $returned_model, $returned_in_tokens, $returned_out_tokens ); |
| 423 | $reply->set_usage( $usage ); |
| 424 | } |
| 425 | |
| 426 | /* |
| 427 | This is the rest of the OpenAI API support, not related to the models directly. |
| 428 | */ |
| 429 | |
| 430 | // Check if there are errors in the response from OpenAI, and throw an exception if so. |
| 431 | public function handle_response_errors( $data ) { |
| 432 | if ( isset( $data['error'] ) ) { |
| 433 | $message = $data['error']['message']; |
| 434 | if ( preg_match( '/API key provided(: .*)\./', $message, $matches ) ) { |
| 435 | $message = str_replace( $matches[1], '', $message ); |
| 436 | } |
| 437 | throw new Exception( $message ); |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | public function get_models() { |
| 442 | return $this->core->get_option( 'google_models' ); |
| 443 | } |
| 444 | |
| 445 | public function retrieve_models() { |
| 446 | $url = "https://generativelanguage.googleapis.com/v1/models"; |
| 447 | $url .= "?key=" . $this->apiKey; |
| 448 | $response = wp_remote_get( $url ); |
| 449 | if ( is_wp_error( $response ) ) { |
| 450 | throw new Exception( 'AI Engine: ' . $response->get_error_message() ); |
| 451 | } |
| 452 | $body = json_decode( $response['body'], true ); |
| 453 | $models = array(); |
| 454 | foreach ( $body['models'] as $model ) { |
| 455 | if ( strpos( $model['name'], 'gemini' ) === false ) { |
| 456 | continue; |
| 457 | } |
| 458 | $family = "gemini"; |
| 459 | $maxCompletionTokens = $model['outputTokenLimit']; |
| 460 | $maxContextualTokens = $model['inputTokenLimit']; |
| 461 | $priceIn = 0; |
| 462 | $priceOut = 0; |
| 463 | $tags = [ 'core', 'chat' ]; |
| 464 | // If the name contains (beta), (alpha) or (preview), add 'preview' tag and remove from name |
| 465 | if ( preg_match( '/\((beta|alpha|preview)\)/i', $model['name'], $matches ) ) { |
| 466 | $tags[] = 'preview'; |
| 467 | $model['name'] = preg_replace( '/\((beta|alpha|preview)\)/i', '', $model['name'] ); |
| 468 | } |
| 469 | // If the name includes 'Vision', add 'vision' tag |
| 470 | if ( preg_match( '/vision/i', $model['name'], $matches ) ) { |
| 471 | $tags[] = 'vision'; |
| 472 | } |
| 473 | $name = preg_replace( '/^models\//', '', $model['name'] ); |
| 474 | $model = array( |
| 475 | 'model' => $name, |
| 476 | 'name' => $name, |
| 477 | 'family' => $family, |
| 478 | 'mode' => 'chat', |
| 479 | 'type' => 'token', |
| 480 | 'unit' => 1 / 1000, |
| 481 | 'maxCompletionTokens' => $maxCompletionTokens, |
| 482 | 'maxContextualTokens' => $maxContextualTokens, |
| 483 | 'tags' => $tags |
| 484 | ); |
| 485 | if ( $priceIn > 0 && $priceOut > 0 ) { |
| 486 | $model['price'] = array( |
| 487 | 'in' => $priceIn, |
| 488 | 'out' => $priceOut, |
| 489 | ); |
| 490 | } |
| 491 | $models[] = $model; |
| 492 | } |
| 493 | return $models; |
| 494 | } |
| 495 | |
| 496 | public function get_price( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) { |
| 497 | // TODO: Not sure how to get the price from Google's API. |
| 498 | return null; |
| 499 | } |
| 500 | } |
| 501 |