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<?php |
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declare(strict_types=1); |
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namespace JeroenDesloovere\VCard\Parser; |
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use JeroenDesloovere\VCard\Exception\ParserException; |
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use JeroenDesloovere\VCard\Parser\Property\NodeParserInterface; |
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use JeroenDesloovere\VCard\Property\NodeInterface; |
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use JeroenDesloovere\VCard\VCard; |
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final class VcfParser implements ParserInterface |
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{ |
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/** @var NodeParserInterface[] - f.e. ['ADR' => JeroenDesloovere\VCard\Parser\Property\AddressParser] */ |
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private $parsers = []; |
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public function __construct() |
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{ |
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/** |
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* We define all possible node parsers |
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* |
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* @var NodeInterface $node |
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*/ |
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foreach (VCard::POSSIBLE_VALUES as $node) { |
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$this->parsers[$node::getNode()] = $node::getParser(); |
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} |
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} |
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/** |
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* Returns all found vCard objects |
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* |
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* @param string $content |
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* @return VCard[] |
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* @throws ParserException |
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*/ |
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public function getVCards(string $content): array |
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{ |
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return array_map(function ($vCardContent) { |
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return $this->parseVCard($vCardContent); |
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}, $this->splitIntoVCards($content)); |
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} |
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private function parseParameters(?string $parameters): array |
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{ |
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if ($parameters === null) { |
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return []; |
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} |
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/** @var string[] $parametersArray */ |
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$parametersArray = explode(';', $parameters); |
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$parsedParameters = []; |
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foreach ($parametersArray as $parameter) { |
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/** |
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* @var string $node |
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* @var string $value |
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*/ |
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@list($node, $value) = explode('=', $parameter, 2); |
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if (array_key_exists($node, $this->parsers)) { |
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$parsedParameters[$node] = $this->parsers[$node]->parseLine($value); |
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} |
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} |
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return $parsedParameters; |
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} |
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private function parseVCard(string $content): VCard |
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{ |
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$vCard = new VCard(); |
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$lines = explode("\n", $content); |
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foreach ($lines as $line) { |
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$this->parseVCardLine($line, $vCard); |
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} |
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return $vCard; |
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} |
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private function parseVCardLine(string $line, VCard &$vCard): void |
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{ |
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// Strip grouping information. We don't use the group names. We |
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// simply use a list for entries that have multiple values. |
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// As per RFC, group names are alphanumerical, and end with a |
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// period (.). |
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$line = preg_replace('/^\w+\./', '', trim($line)); |
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/** |
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* @var string $node |
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* @var string $value |
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*/ |
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@list($node, $value) = explode(':', $line, 2); |
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/** |
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* @var string $node |
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* @var string|null $parameterContent |
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*/ |
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@list($node, $parameterContent) = explode(';', $node, 2); |
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// Skip parameters that we can not parse yet, because the property/parser does not exist yet. |
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// Feel free to create a PR to add a new Property Parser |
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if (!array_key_exists($node, $this->parsers)) { |
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return; |
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} |
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try { |
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$vCard->add($this->parsers[$node]->parseLine($value, $this->parseParameters($parameterContent))); |
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} catch (\Exception $e) { |
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// Ignoring properties that throw error. F.e. if they are allowed only once. |
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} |
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} |
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/** |
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* Split string into array, each array item contains vCard content. |
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* |
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* @param string $content - The full content from the .vcf file. |
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* @return array - Is an array with the content for all possible vCards. |
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* @throws ParserException |
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*/ |
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private function splitIntoVCards(string $content): array |
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{ |
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// Normalize new lines. |
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$content = trim(str_replace(["\r\n", "\r"], "\n", $content)); |
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if (!preg_match('/^BEGIN:VCARD[\s\S]+END:VCARD$/', $content)) { |
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throw ParserException::forUnreadableVCard($content); |
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} |
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// Remove first BEGIN:VCARD and last END:VCARD |
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$content = substr($content, 12, -10); |
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// RFC2425 5.8.1. Line delimiting and folding |
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// Unfolding is accomplished by regarding CRLF immediately followed by |
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// a white space character (namely HTAB ASCII decimal 9 or. SPACE ASCII |
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// decimal 32) as equivalent to no characters at all (i.e., the CRLF |
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// and single white space character are removed). |
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$content = preg_replace("/\n(?:[ \t])/", '', $content); |
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// If multiple vcards split per vcard |
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return preg_split('/\nEND:VCARD\s+BEGIN:VCARD\n/', $content); |
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} |
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} |
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jeroendesloovere /
vcard
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