anthropic.php
2 years ago
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
anthropic.php
407 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_Anthropic extends Meow_MWAI_Engines_OpenAI |
| 4 | { |
| 5 | |
| 6 | // Streaming |
| 7 | protected $streamInTokens = null; |
| 8 | protected $streamOutTokens = null; |
| 9 | |
| 10 | public function __construct( $core, $env ) |
| 11 | { |
| 12 | parent::__construct( $core, $env ); |
| 13 | } |
| 14 | |
| 15 | public function reset_stream() { |
| 16 | $this->streamContent = null; |
| 17 | $this->streamBuffer = null; |
| 18 | $this->inModel = null; |
| 19 | $this->inId = null; |
| 20 | } |
| 21 | |
| 22 | protected function set_environment() { |
| 23 | $env = $this->env; |
| 24 | $this->apiKey = $env['apikey']; |
| 25 | } |
| 26 | |
| 27 | protected function build_url( $query, $endpoint = null ) { |
| 28 | $endpoint = apply_filters( 'mwai_anthropic_endpoint', 'https://api.anthropic.com/v1', $this->env ); |
| 29 | if ( $query instanceof Meow_MWAI_Query_Text || $query instanceof Meow_MWAI_Query_Feedback ) { |
| 30 | $url = trailingslashit( $endpoint ) . 'messages'; |
| 31 | } |
| 32 | else { |
| 33 | throw new Exception( 'AI Engine: Unsupported query type.' ); |
| 34 | } |
| 35 | return $url; |
| 36 | } |
| 37 | |
| 38 | protected function build_headers( $query ) { |
| 39 | parent::build_headers( $query ); |
| 40 | $headers = array( |
| 41 | 'Content-Type' => 'application/json', |
| 42 | 'x-api-key' => $this->apiKey, |
| 43 | 'anthropic-version' => '2023-06-01', |
| 44 | 'anthropic-beta' => 'tools-2024-04-04', |
| 45 | 'User-Agent' => 'AI Engine', |
| 46 | ); |
| 47 | return $headers; |
| 48 | } |
| 49 | |
| 50 | public function final_checks( Meow_MWAI_Query_Base $query ) { |
| 51 | // We skip this completely. |
| 52 | // maxMessages is handed in build_messages(). |
| 53 | } |
| 54 | |
| 55 | protected function build_messages( $query ) { |
| 56 | $messages = []; |
| 57 | |
| 58 | // Then, if any, we need to add the 'messages', they are already formatted. |
| 59 | foreach ( $query->messages as $message ) { |
| 60 | $messages[] = $message; |
| 61 | } |
| 62 | |
| 63 | // Handle the maxMessages |
| 64 | if ( !empty( $query->maxMessages ) ) { |
| 65 | $messages = array_slice( $messages, -$query->maxMessages ); |
| 66 | } |
| 67 | |
| 68 | // If the first message is not a 'user' role, we remove it. |
| 69 | if ( !empty( $messages ) && $messages[0]['role'] !== 'user' ) { |
| 70 | array_shift( $messages ); |
| 71 | } |
| 72 | |
| 73 | // Finally, we need to add the message |
| 74 | // If there is a file (image), we need to sent the data (not the URL, as it's not supported by Anthropic yet). |
| 75 | $fileUrl = $query->get_file_url(); |
| 76 | |
| 77 | if ( !empty( $fileUrl ) ) { |
| 78 | // Currently, Claude supports the base64 source type for images, and the image/jpeg, image/png, image/gif, and image/webp media types: https://docs.anthropic.com/claude/reference/messages-examples#vision. |
| 79 | $mime = $query->get_file_mime_type(); |
| 80 | $messages[] = [ |
| 81 | 'role' => 'user', |
| 82 | 'content' => [ |
| 83 | [ |
| 84 | "type" => "text", |
| 85 | "text" => $query->get_message() |
| 86 | ], |
| 87 | [ |
| 88 | "type" => "image", |
| 89 | "source" => [ |
| 90 | "type" => "base64", |
| 91 | "media_type" => $mime, |
| 92 | "data" => $query->get_file_data() |
| 93 | ] |
| 94 | ] |
| 95 | ] |
| 96 | ]; |
| 97 | } |
| 98 | else { |
| 99 | $messages[] = [ 'role' => 'user', 'content' => $query->get_message() ]; |
| 100 | } |
| 101 | |
| 102 | return $messages; |
| 103 | } |
| 104 | |
| 105 | // Define a function to recursively replace empty arrays with empty stdClass objects |
| 106 | // To avoid errors with OpenAI's API |
| 107 | private function replaceEmptyArrayWithObject( $item ) { |
| 108 | if ( is_array( $item ) ) { |
| 109 | if ( empty( $item ) ) { |
| 110 | return new stdClass(); // Replace empty array with empty object |
| 111 | } |
| 112 | foreach ( $item as $key => $value ) { |
| 113 | $item[$key] = $this->replaceEmptyArrayWithObject( $value ); // Recurse |
| 114 | } |
| 115 | } |
| 116 | return $item; |
| 117 | } |
| 118 | |
| 119 | protected function build_body( $query, $streamCallback = null, $extra = null ) { |
| 120 | if ( $query instanceof Meow_MWAI_Query_Feedback ) { |
| 121 | $body = array( |
| 122 | "model" => $query->model, |
| 123 | "max_tokens" => $query->maxTokens, |
| 124 | "temperature" => $query->temperature, |
| 125 | "stream" => !is_null( $streamCallback ), |
| 126 | "messages" => [] |
| 127 | ); |
| 128 | |
| 129 | // Build the messages |
| 130 | $body['messages'][] = [ 'role' => 'user', 'content' => $query->message ]; |
| 131 | |
| 132 | if ( !empty( $query->blocks ) ) { |
| 133 | foreach ( $query->blocks as $feedback_block ) { |
| 134 | $body['messages'][] = [ |
| 135 | 'role' => 'assistant', |
| 136 | 'content' => $feedback_block['rawMessage']['content'] |
| 137 | ]; |
| 138 | foreach ( $feedback_block['feedbacks'] as $feedback ) { |
| 139 | $feedbackValue = $feedback['reply']['value']; |
| 140 | if ( !is_string( $feedbackValue ) ) { |
| 141 | $feedbackValue = json_encode( $feedbackValue ); |
| 142 | } |
| 143 | $body['messages'][] = [ |
| 144 | 'role' => 'user', |
| 145 | 'content' => [ |
| 146 | [ |
| 147 | 'type' => 'tool_result', |
| 148 | 'tool_use_id' => $feedback['request']['toolId'], |
| 149 | 'content' => $feedbackValue, |
| 150 | 'is_error' => false // Cool, Anthropic supports errors! |
| 151 | ] |
| 152 | ] |
| 153 | ]; |
| 154 | } |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | // TODO: This WAS COPIED FROM BELOW |
| 159 | // Support for functions |
| 160 | if ( !empty( $query->functions ) ) { |
| 161 | $model = $this->retrieve_model_info( $query->model ); |
| 162 | if ( !empty( $model['tags'] ) && !in_array( 'functions', $model['tags'] ) ) { |
| 163 | error_log( 'The model "' . $query->model . '" doesn\'t support Function Calling.' ); |
| 164 | } |
| 165 | else { |
| 166 | $body['tools'] = []; |
| 167 | // Dynamic function: they will interactively enhance the completion (tools). |
| 168 | foreach ( $query->functions as $function ) { |
| 169 | $body['tools'][] = $function->serializeForAnthropic(); |
| 170 | } |
| 171 | // Static functions: they will be executed at the end of the completion. |
| 172 | //$body['function_call'] = $query->functionCall; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | // To avoid errors with Anthropic's API, we need to replace empty arrays with empty objects |
| 177 | $body = $this->replaceEmptyArrayWithObject( $body ); |
| 178 | return $body; |
| 179 | } |
| 180 | else if ( $query instanceof Meow_MWAI_Query_Text ) { |
| 181 | $body = array( |
| 182 | "model" => $query->model, |
| 183 | "max_tokens" => $query->maxTokens, |
| 184 | "temperature" => $query->temperature, |
| 185 | "stream" => !is_null( $streamCallback ), |
| 186 | ); |
| 187 | |
| 188 | if ( !empty( $query->stop ) ) { |
| 189 | $body['stop'] = $query->stop; |
| 190 | } |
| 191 | |
| 192 | // First, we need to add the first message (the instructions). |
| 193 | if ( !empty( $query->instructions ) ) { |
| 194 | $body['system'] = $query->instructions; |
| 195 | } |
| 196 | |
| 197 | // If there is a context, we need to add it. |
| 198 | if ( !empty( $query->context ) ) { |
| 199 | if ( empty( $body['system'] ) ) { |
| 200 | $body['system'] = ""; |
| 201 | } |
| 202 | $body['system'] = empty( $body['system'] ) ? '' : $body['system'] . "\n\n"; |
| 203 | $body['system'] = $body['system'] . "Context:\n\n" . $query->context; |
| 204 | } |
| 205 | |
| 206 | // Support for functions |
| 207 | if ( !empty( $query->functions ) ) { |
| 208 | $model = $this->retrieve_model_info( $query->model ); |
| 209 | if ( !empty( $model['tags'] ) && !in_array( 'functions', $model['tags'] ) ) { |
| 210 | error_log( 'The model "' . $query->model . '" doesn\'t support Function Calling.' ); |
| 211 | } |
| 212 | else { |
| 213 | $body['tools'] = []; |
| 214 | // Dynamic function: they will interactively enhance the completion (tools). |
| 215 | foreach ( $query->functions as $function ) { |
| 216 | $body['tools'][] = $function->serializeForAnthropic(); |
| 217 | } |
| 218 | // Static functions: they will be executed at the end of the completion. |
| 219 | //$body['function_call'] = $query->functionCall; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | $body['messages'] = $this->build_messages( $query ); |
| 224 | return $body; |
| 225 | } |
| 226 | else { |
| 227 | throw new Exception( 'AI Engine: Unsupported query type.' ); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | protected function stream_data_handler( $json ) { |
| 232 | $content = null; |
| 233 | |
| 234 | // Get the data |
| 235 | if ( isset( $json['type'] ) && $json['type'] === 'message_start' ) { |
| 236 | $usage = $json['message']['usage']; |
| 237 | $this->streamInTokens = $usage['input_tokens']; |
| 238 | $this->inModel = $json['message']['model']; |
| 239 | $this->inId = $json['message']['id']; |
| 240 | } |
| 241 | else if ( isset( $json['type'] ) && ( $json['type'] === 'delta' || $json['type'] === 'content_block_delta' ) ) { |
| 242 | $content = $json['delta']['text']; |
| 243 | } |
| 244 | else if ( isset( $json['type'] ) && $json['type'] === 'message_delta' ) { |
| 245 | $usage = $json['usage']; |
| 246 | $this->streamOutTokens = $usage['output_tokens']; |
| 247 | } |
| 248 | else if ( isset( $json['type'] ) && $json['type'] === 'error' ) { |
| 249 | $error = $json['error']; |
| 250 | $message = $error['message']; |
| 251 | throw new Exception( $message ); |
| 252 | } |
| 253 | |
| 254 | // Avoid some endings |
| 255 | $endings = [ "<|im_end|>", "</s>" ]; |
| 256 | if ( in_array( $content, $endings ) ) { |
| 257 | $content = null; |
| 258 | } |
| 259 | |
| 260 | return ( $content === '0' || !empty( $content ) ) ? $content : null; |
| 261 | } |
| 262 | |
| 263 | public function run_completion_query( $query, $streamCallback = null ) : Meow_MWAI_Reply { |
| 264 | if ( !is_null( $streamCallback ) ) { |
| 265 | $this->streamCallback = $streamCallback; |
| 266 | add_action( 'http_api_curl', [ $this, 'stream_handler' ], 10, 3 ); |
| 267 | } |
| 268 | |
| 269 | $this->reset_stream(); |
| 270 | $data = null; |
| 271 | $body = $this->build_body( $query, $streamCallback ); |
| 272 | $url = $this->build_url( $query ); |
| 273 | $headers = $this->build_headers( $query ); |
| 274 | $options = $this->build_options( $headers, $body ); |
| 275 | |
| 276 | try { |
| 277 | $res = $this->run_query( $url, $options, $streamCallback ); |
| 278 | $reply = new Meow_MWAI_Reply( $query ); |
| 279 | |
| 280 | $returned_id = null; |
| 281 | $returned_model = $this->inModel; |
| 282 | $returned_choices = []; |
| 283 | |
| 284 | if ( !is_null( $streamCallback ) ) { |
| 285 | // Streamed data |
| 286 | if ( empty( $this->streamContent ) ) { |
| 287 | $json = json_decode( $this->streamBuffer, true ); |
| 288 | if ( isset( $json['error']['message'] ) ) { |
| 289 | throw new Exception( $json['error']['message'] ); |
| 290 | } |
| 291 | } |
| 292 | $returned_id = $this->inId; |
| 293 | $returned_model = $this->inModel ? $this->inModel : $query->model; |
| 294 | $returned_in_tokens = !is_null( $this->streamInTokens ) ? $this->streamInTokens : null; |
| 295 | $returned_out_tokens = !is_null( $this->streamOutTokens ) ? $this->streamOutTokens : null; |
| 296 | $returned_choices = [ |
| 297 | [ |
| 298 | 'message' => [ |
| 299 | 'content' => $this->streamContent, |
| 300 | //'function_call' => $this->streamFunctionCall |
| 301 | ] |
| 302 | ] |
| 303 | ]; |
| 304 | } |
| 305 | else { |
| 306 | // Regular data |
| 307 | $data = $res['data']; |
| 308 | if ( empty( $data ) ) { |
| 309 | throw new Exception( 'No content received (res is null).' ); |
| 310 | } |
| 311 | if ( !$data['model'] ) { |
| 312 | error_log( print_r( $data, 1 ) ); |
| 313 | throw new Exception( 'Invalid response (no model information).' ); |
| 314 | } |
| 315 | $returned_id = $data['id']; |
| 316 | $returned_model = $data['model']; |
| 317 | $returned_in_tokens = isset( $data['usage']['input_tokens'] ) ? |
| 318 | $data['usage']['input_tokens'] : null; |
| 319 | $returned_out_tokens = isset( $data['usage']['output_tokens'] ) ? |
| 320 | $data['usage']['output_tokens'] : null; |
| 321 | |
| 322 | // We convert this into a format Meow_MWAI_Reply (set_choices) will understand |
| 323 | $returned_choices = []; |
| 324 | foreach ( $data['content'] as $content ) { |
| 325 | if ( $content['type'] === 'tool_use' ) { |
| 326 | $returned_choices[] = [ |
| 327 | 'message' => [ |
| 328 | 'tool_calls' => [ |
| 329 | [ |
| 330 | 'id' => $content['id'], |
| 331 | 'type' => 'function', |
| 332 | 'function' => [ |
| 333 | 'name' => $content['name'], |
| 334 | 'arguments' => empty( $content['input'] ) ? new stdClass() : $content['input'], |
| 335 | ] |
| 336 | ] |
| 337 | |
| 338 | ] |
| 339 | ] |
| 340 | ]; |
| 341 | } |
| 342 | else if ( $content['type'] === 'text' ) { |
| 343 | $returned_choices[] = [ |
| 344 | 'message' => [ |
| 345 | 'content' => $content['text'] |
| 346 | ] |
| 347 | ]; |
| 348 | } |
| 349 | } |
| 350 | } |
| 351 | |
| 352 | $reply->set_choices( $returned_choices, $data ); |
| 353 | if ( !empty( $returned_id ) ) { |
| 354 | $reply->set_id( $returned_id ); |
| 355 | } |
| 356 | |
| 357 | // Handle tokens. |
| 358 | $this->handle_tokens_usage( $reply, $query, $returned_model, |
| 359 | $returned_in_tokens, $returned_out_tokens |
| 360 | ); |
| 361 | |
| 362 | return $reply; |
| 363 | } |
| 364 | catch ( Exception $e ) { |
| 365 | $error = $e->getMessage(); |
| 366 | $json = json_decode( $error, true ); |
| 367 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 368 | if ( isset( $json['error'] ) && isset( $json['error']['message'] ) ) { |
| 369 | $error = $json['error']['message']; |
| 370 | } |
| 371 | } |
| 372 | error_log( $error ); |
| 373 | $service = $this->get_service_name(); |
| 374 | $message = "From $service: " . $error; |
| 375 | throw new Exception( $message ); |
| 376 | } |
| 377 | } |
| 378 | |
| 379 | protected function get_service_name() { |
| 380 | return "Anthropic"; |
| 381 | } |
| 382 | |
| 383 | public function get_models() { |
| 384 | return apply_filters( 'mwai_anthropic_models', MWAI_ANTHROPIC_MODELS ); |
| 385 | } |
| 386 | |
| 387 | static public function get_models_static() { |
| 388 | return MWAI_ANTHROPIC_MODELS; |
| 389 | } |
| 390 | |
| 391 | public function handle_tokens_usage( $reply, $query, $returned_model, |
| 392 | $returned_in_tokens, $returned_out_tokens, $returned_price = null ) { |
| 393 | $returned_in_tokens = !is_null( $returned_in_tokens ) ? |
| 394 | $returned_in_tokens : $reply->get_in_tokens( $query ); |
| 395 | $returned_out_tokens = !is_null( $returned_out_tokens ) ? |
| 396 | $returned_out_tokens : $reply->get_out_tokens(); |
| 397 | if ( !empty( $reply->id ) ) { |
| 398 | // Would be cool to retrieve the usage from the API, but it's not possible. |
| 399 | } |
| 400 | $usage = $this->core->record_tokens_usage( $returned_model, $returned_in_tokens, $returned_out_tokens ); |
| 401 | $reply->set_usage( $usage ); |
| 402 | } |
| 403 | |
| 404 | public function get_price( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) { |
| 405 | return parent::get_price( $query, $reply ); |
| 406 | } |
| 407 | } |