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<?php |
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declare(strict_types=1); |
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namespace KEINOS\MSTDN_TOOLS\Parser; |
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class ParserProtectedMethods extends ParserStaticMethods |
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{ |
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/** @var bool */ |
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protected $flagByteLen; |
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/** @var bool */ |
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protected $flagEventDelete; |
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/** @var bool */ |
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protected $flagEventUpdate; |
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/** @var string */ |
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protected $buffer; |
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public function __construct() |
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{ |
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$this->resetFlags(); |
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$this->clearBuffer(); |
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} |
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/** |
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* Buffers chunked payloads until accomplishes the data. |
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* |
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* @param string $line |
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* @return bool|array<string,mixed> |
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*/ |
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protected function bufferPayloadUpdate(string $line) |
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{ |
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if (self::isDataBeginPayload($line)) { |
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$this->buffer = self::trimEOL($line); |
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} else { |
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$this->buffer .= self::trimEOL($line); |
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} |
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if ($this->isDataEndPayload($line)) { |
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$json = self::extractDataFromString($this->buffer); |
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if ((false === $json) or !(is_string($json))) { |
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return false; |
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} |
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$assoc_as_array = true; // JSON_OBJECT_AS_ARRAY |
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$array = json_decode($json, $assoc_as_array); |
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if (null === $array) { |
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return false; |
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} |
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$this->resetFlags(); |
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$this->clearBuffer(); |
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return $array; |
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} |
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return false; |
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} |
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protected function clearBuffer(): void |
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{ |
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$this->buffer = ''; |
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} |
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protected function isSkippable(string $line): bool |
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{ |
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if (self::isBlank($line) || self::isThump($line)) { |
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return true; |
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} |
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if (self::isByteLenOfPayload($line)) { |
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$this->setFlagUpByteLength(true); |
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return true; |
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} |
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return $this->isFlagUpAsEvent($line); |
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} |
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protected function isFlagUpAsEvent(string $line): bool |
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{ |
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if (! self::isEvent($line)) { |
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return false; |
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} |
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// Reset flags when new event begin |
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$this->setFlagUpEventUpdate(false); |
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$this->setFlagUpEventDelete(false); |
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$this->clearBuffer(); |
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if (self::isEventDelete($line)) { |
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$this->setFlagUpEventDelete(true); |
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return true; |
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} |
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if (self::isEventUpdate($line)) { |
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$this->setFlagUpEventUpdate(true); |
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return true; |
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} |
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// Unsupported flag |
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return false; |
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} |
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protected function isFlagUpEventDelete(): bool |
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{ |
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return ($this->flagByteLen && $this->flagEventDelete); |
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} |
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protected function isFlagUpEventUpdate(): bool |
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{ |
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return ($this->flagByteLen && $this->flagEventUpdate); |
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} |
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protected function resetFlags(): void |
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{ |
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$this->setFlagUpByteLength(false); |
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$this->setFlagUpEventDelete(false); |
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$this->setFlagUpEventUpdate(false); |
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} |
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protected function setFlagUpByteLength(bool $flag): void |
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{ |
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$this->flagByteLen = $flag; |
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} |
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protected function setFlagUpEventUpdate(bool $flag): void |
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{ |
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$this->flagEventUpdate = $flag; |
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} |
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protected function setFlagUpEventDelete(bool $flag): void |
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{ |
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$this->flagEventDelete = $flag; |
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} |
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} |
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