57 lines
1.9 KiB
PHP
57 lines
1.9 KiB
PHP
<?php
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declare(strict_types = 1);
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namespace LanguageServer;
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use LanguageServer\Protocol\Message;
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use AdvancedJsonRpc\Message as MessageBody;
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use Sabre\Event\{Loop, Emitter};
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class ProtocolStreamReader extends Emitter implements ProtocolReader
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{
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const PARSE_HEADERS = 1;
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const PARSE_BODY = 2;
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private $input;
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private $parsingMode = self::PARSE_HEADERS;
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private $buffer = '';
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private $headers = [];
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private $contentLength;
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/**
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* @param resource $input
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*/
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public function __construct($input)
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{
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$this->input = $input;
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Loop\addReadStream($this->input, function () {
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while (($c = fgetc($this->input)) !== false && $c !== '') {
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$this->buffer .= $c;
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switch ($this->parsingMode) {
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case self::PARSE_HEADERS:
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if ($this->buffer === "\r\n") {
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$this->parsingMode = self::PARSE_BODY;
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$this->contentLength = (int)$this->headers['Content-Length'];
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$this->buffer = '';
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} else if (substr($this->buffer, -2) === "\r\n") {
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$parts = explode(':', $this->buffer);
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$this->headers[$parts[0]] = trim($parts[1]);
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$this->buffer = '';
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}
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break;
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case self::PARSE_BODY:
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if (strlen($this->buffer) === $this->contentLength) {
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$msg = new Message(MessageBody::parse($this->buffer), $this->headers);
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$this->emit('message', [$msg]);
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$this->parsingMode = self::PARSE_HEADERS;
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$this->headers = [];
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$this->buffer = '';
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}
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break;
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}
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}
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});
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}
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}
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