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
core.php
315 lines
| 1 | <?php |
| 2 | |
| 3 | class Meow_MWAI_Engines_Core { |
| 4 | protected $core = null; |
| 5 | public $env = null; |
| 6 | public $envId = null; |
| 7 | public $envType = null; |
| 8 | |
| 9 | // Streaming |
| 10 | protected $streamCallback = null; |
| 11 | protected $streamTemporaryBuffer = ""; |
| 12 | protected $streamBuffer = ""; |
| 13 | protected $streamHeaders = []; |
| 14 | protected $streamContent = ""; |
| 15 | |
| 16 | public function __construct( $core, $env ) { |
| 17 | $this->core = $core; |
| 18 | $this->env = $env; |
| 19 | $this->envId = $env['id']; |
| 20 | $this->envType = $env['type']; |
| 21 | } |
| 22 | |
| 23 | public function run( $query, $streamCallback = null ) { |
| 24 | |
| 25 | // Check if the query is allowed. |
| 26 | $limits = $this->core->get_option( 'limits' ); |
| 27 | $allowed = apply_filters( 'mwai_ai_allowed', true, $query, $limits ); |
| 28 | if ( $allowed !== true ) { |
| 29 | $message = is_string( $allowed ) ? $allowed : 'Unauthorized query.'; |
| 30 | throw new Exception( $message ); |
| 31 | } |
| 32 | |
| 33 | // Allow to modify the query before it is sent. It should not be a Meow_MWAI_Query_Embed. |
| 34 | if ( !( $query instanceof Meow_MWAI_Query_Embed ) ) { |
| 35 | $query = apply_filters( 'mwai_ai_query', $query ); |
| 36 | } |
| 37 | |
| 38 | // Important as it makes sure everything is consolidated in the query and the engine. |
| 39 | $this->final_checks( $query ); |
| 40 | |
| 41 | // Run the query |
| 42 | $reply = null; |
| 43 | if ( $query instanceof Meow_MWAI_Query_Text ) { |
| 44 | $reply = $this->run_completion_query( $query, $streamCallback ); |
| 45 | } |
| 46 | else if ( $query instanceof Meow_MWAI_Query_Assistant ) { |
| 47 | $reply = null; |
| 48 | $reply = apply_filters( 'mwai_ai_query_assistant', $reply, $query ); |
| 49 | if ( $reply === null ) { |
| 50 | throw new Exception( 'Assistants are not supported in this version of AI Engine.' ); |
| 51 | } |
| 52 | } |
| 53 | else if ( $query instanceof Meow_MWAI_Query_Embed ) { |
| 54 | $reply = $this->run_embedding_query( $query ); |
| 55 | } |
| 56 | else if ( $query instanceof Meow_MWAI_Query_Image ) { |
| 57 | $reply = $this->run_images_query( $query ); |
| 58 | } |
| 59 | else if ( $query instanceof Meow_MWAI_Query_Transcribe ) { |
| 60 | $reply = $this->run_transcribe_query( $query ); |
| 61 | } |
| 62 | else { |
| 63 | throw new Exception( 'Unknown query type.' ); |
| 64 | } |
| 65 | |
| 66 | // Allow to modify the reply before it is sent. |
| 67 | $reply = apply_filters( 'mwai_ai_reply', $reply, $query ); |
| 68 | |
| 69 | return $reply; |
| 70 | } |
| 71 | |
| 72 | public function retrieve_model_info( $model ) { |
| 73 | $models = $this->get_models(); |
| 74 | foreach ( $models as $currentModel ) { |
| 75 | if ( $currentModel['model'] === $model ) { |
| 76 | return $currentModel; |
| 77 | } |
| 78 | } |
| 79 | return false; |
| 80 | } |
| 81 | |
| 82 | public function final_checks( Meow_MWAI_Query_Base $query ) { |
| 83 | $query->final_checks(); |
| 84 | //$found = false; |
| 85 | |
| 86 | // Check if the model is available, except if it's an assistant |
| 87 | if ( !( $query instanceof Meow_MWAI_Query_Assistant ) ) { |
| 88 | // TODO: Avoid checking on the finetuned models for now. |
| 89 | if ( substr( $query->model, 0, 3 ) === 'ft:' ) { |
| 90 | return; |
| 91 | } |
| 92 | $model_info = $this->retrieve_model_info( $query->model ); |
| 93 | if ( $model_info === false ) { |
| 94 | throw new Exception( "AI Engine: The model '{$query->model}' is not available." ); |
| 95 | } |
| 96 | if ( isset( $model_info['mode'] ) ) { |
| 97 | $query->mode = $model_info['mode']; |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | // Streamline the messages: |
| 103 | // - Concatenate consecutive model messages into a single message for the model role |
| 104 | // - Make sure the first message is a user message |
| 105 | // - Make sure the last message is a user message |
| 106 | protected function streamline_messages( $messages, $systemRole = 'assistant', $messageType = 'content' ) |
| 107 | { |
| 108 | $processedMessages = []; |
| 109 | $lastRole = ''; |
| 110 | $concatenatedText = ''; |
| 111 | |
| 112 | // Determine the way to access message content based on messageType |
| 113 | $getContent = function( $message ) use ( $messageType ) { |
| 114 | if ( $messageType == 'parts' ) { |
| 115 | return $message['parts'][0]['text']; |
| 116 | } |
| 117 | else { // Default to 'content' |
| 118 | return $message['content']; |
| 119 | } |
| 120 | }; |
| 121 | |
| 122 | // Set content to a message depending on the messageType |
| 123 | $setContent = function( &$message, $content ) use ( $messageType ) { |
| 124 | if ( $messageType == 'parts' ) { |
| 125 | $message['parts'] = [['text' => $content]]; |
| 126 | } |
| 127 | else { // Default to 'content' |
| 128 | $message['content'] = $content; |
| 129 | } |
| 130 | }; |
| 131 | |
| 132 | // Concatenate consecutive model messages into a single message for the model role |
| 133 | foreach ( $messages as $message ) { |
| 134 | if ( $message['role'] == $systemRole ) { |
| 135 | if ( $lastRole == $systemRole ) { |
| 136 | $concatenatedText .= "\n" . $getContent( $message ); |
| 137 | } |
| 138 | else { |
| 139 | if ( $concatenatedText !== '' ) { |
| 140 | $newMessage = [ 'role' => $systemRole ]; |
| 141 | $setContent( $newMessage, $concatenatedText ); |
| 142 | $processedMessages[] = $newMessage; |
| 143 | } |
| 144 | $concatenatedText = $getContent( $message ); |
| 145 | } |
| 146 | } |
| 147 | else { |
| 148 | if ( $lastRole == $systemRole ) { |
| 149 | $newMessage = [ 'role' => $systemRole ]; |
| 150 | $setContent( $newMessage, $concatenatedText ); |
| 151 | $processedMessages[] = $newMessage; |
| 152 | $concatenatedText = ''; |
| 153 | } |
| 154 | $processedMessages[] = $message; |
| 155 | } |
| 156 | $lastRole = $message['role']; |
| 157 | } |
| 158 | if ( $lastRole == $systemRole && $concatenatedText !== '' ) { |
| 159 | $newMessage = [ 'role' => $systemRole ]; |
| 160 | $setContent( $newMessage, $concatenatedText ); |
| 161 | $processedMessages[] = $newMessage; |
| 162 | } |
| 163 | |
| 164 | // Make sure the last message is a user message, if not, throw an exception |
| 165 | if ( end( $processedMessages )['role'] !== 'user' ) { |
| 166 | throw new Exception( 'The last message must be a user message.' ); |
| 167 | } |
| 168 | |
| 169 | // Make sure the first message is a user message, if not, add an empty user message |
| 170 | if ( $processedMessages[0]['role'] !== 'user' ) { |
| 171 | $newMessage = [ 'role' => 'user' ]; |
| 172 | $setContent( $newMessage, '' ); |
| 173 | array_unshift( $processedMessages, $newMessage ); |
| 174 | } |
| 175 | |
| 176 | return $processedMessages; |
| 177 | } |
| 178 | |
| 179 | // Check for a JSON-formatted error in the data, and throw an exception if it's the case. |
| 180 | function stream_error_check( $data ) { |
| 181 | if ( strpos( $data, 'error' ) === false ) { |
| 182 | return; |
| 183 | } |
| 184 | $data = trim( $data ); |
| 185 | $jsonPart = $data; |
| 186 | if ( strpos( $jsonPart, 'data:' ) === 0 ) { |
| 187 | $jsonPart = trim( substr( $jsonPart, strlen( 'data:' ) ) ); |
| 188 | } |
| 189 | $json = json_decode( $jsonPart, true ); |
| 190 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 191 | if ( isset( $json['error'] ) ) { |
| 192 | $error = $json['error']; |
| 193 | $code = null; |
| 194 | $type = null; |
| 195 | $message = null; |
| 196 | if ( isset( $error['message'] ) ) { |
| 197 | $message = $error['message']; |
| 198 | } |
| 199 | else if ( is_string( $error ) ) { |
| 200 | throw new Exception( "Error: $error" ); |
| 201 | } |
| 202 | else { |
| 203 | throw new Exception( "Unknown error (stream_error_check)." ); |
| 204 | } |
| 205 | if ( isset( $error['code'] ) ) { |
| 206 | $code = $error['code']; |
| 207 | } |
| 208 | if ( isset( $error['type'] ) ) { |
| 209 | $type = $error['type']; |
| 210 | } |
| 211 | $errorMessage = "Error: $message"; |
| 212 | if ( !is_null( $code ) ) { |
| 213 | $errorMessage .= " ($code)"; |
| 214 | } |
| 215 | if ( !is_null( $type ) ) { |
| 216 | $errorMessage .= " ($type)"; |
| 217 | } |
| 218 | throw new Exception( $errorMessage ); |
| 219 | } |
| 220 | else if ( isset( $json['type'] ) && $json['type'] === 'error' ) { |
| 221 | $type = $json['error']['type']; |
| 222 | $message = $json['error']['message']; |
| 223 | throw new Exception( "Error: $message ($type)" ); |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | public function stream_handler( $handle, $args, $url ) { |
| 229 | curl_setopt( $handle, CURLOPT_SSL_VERIFYPEER, false ); |
| 230 | curl_setopt( $handle, CURLOPT_SSL_VERIFYHOST, false ); |
| 231 | |
| 232 | // TODO: This is breaking the response. We need to find a way to handle the headers. |
| 233 | // curl_setopt( $handle, CURLOPT_HEADERFUNCTION, function ( $curl, $header ) { |
| 234 | // $length = strlen( $header ); |
| 235 | // $this->streamHeaders[] = $header; |
| 236 | // $this->stream_header_handler( $header ); |
| 237 | // return $length; |
| 238 | // }); |
| 239 | |
| 240 | curl_setopt( $handle, CURLOPT_WRITEFUNCTION, function ( $curl, $data ) { |
| 241 | $length = strlen( $data ); |
| 242 | |
| 243 | // Error Management |
| 244 | $this->stream_error_check( $data ); |
| 245 | |
| 246 | // Bufferize the unfinished stream (if it's the case) |
| 247 | $this->streamTemporaryBuffer .= $data; |
| 248 | $this->streamBuffer .= $data; |
| 249 | $lines = explode( "\n", $this->streamTemporaryBuffer ); |
| 250 | if ( substr( $this->streamTemporaryBuffer, -1 ) !== "\n" ) { |
| 251 | $this->streamTemporaryBuffer = array_pop( $lines ); |
| 252 | } |
| 253 | else { |
| 254 | $this->streamTemporaryBuffer = ""; |
| 255 | } |
| 256 | |
| 257 | foreach ( $lines as $line ) { |
| 258 | if ( $line === "" ) { continue; } |
| 259 | if ( strpos( $line, 'data:' ) === 0 ) { |
| 260 | $line = trim( substr( $line, 5 ) ); |
| 261 | $json = json_decode( trim( $line ), true ); |
| 262 | |
| 263 | if ( json_last_error() === JSON_ERROR_NONE ) { |
| 264 | $content = $this->stream_data_handler( $json ); |
| 265 | if ( !is_null( $content ) ) { |
| 266 | $this->streamContent .= $content; |
| 267 | call_user_func( $this->streamCallback, $content ); |
| 268 | } |
| 269 | } |
| 270 | else if ( $line !== '[DONE]' && !empty( $line ) ) { |
| 271 | $this->streamTemporaryBuffer .= $line . "\n"; |
| 272 | } |
| 273 | } |
| 274 | } |
| 275 | return $length; |
| 276 | }); |
| 277 | } |
| 278 | |
| 279 | protected function stream_header_handler( $header ) { |
| 280 | |
| 281 | } |
| 282 | |
| 283 | protected function stream_data_handler( $json ) { |
| 284 | throw new Exception( 'Not implemented.' ); |
| 285 | } |
| 286 | |
| 287 | public function get_models() { |
| 288 | throw new Exception( 'Not implemented.' ); |
| 289 | } |
| 290 | |
| 291 | public function retrieve_models() { |
| 292 | throw new Exception( 'Not implemented.' ); |
| 293 | } |
| 294 | |
| 295 | public function run_completion_query( Meow_MWAI_Query_Base $query, $streamCallback = null ) : Meow_MWAI_Reply { |
| 296 | throw new Exception( 'Not implemented.' ); |
| 297 | } |
| 298 | |
| 299 | public function run_embedding_query( Meow_MWAI_Query_Base $query ) { |
| 300 | throw new Exception( 'Not implemented.' ); |
| 301 | } |
| 302 | |
| 303 | public function run_images_query( Meow_MWAI_Query_Base $query ) { |
| 304 | throw new Exception( 'Not implemented.' ); |
| 305 | } |
| 306 | |
| 307 | public function run_transcribe_query( Meow_MWAI_Query_Base $query ) { |
| 308 | throw new Exception( 'Not implemented.' ); |
| 309 | } |
| 310 | |
| 311 | public function get_price( Meow_MWAI_Query_Base $query, Meow_MWAI_Reply $reply ) { |
| 312 | throw new Exception( 'Not implemented.' ); |
| 313 | } |
| 314 | } |
| 315 |