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<?php |
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declare(strict_types = 1); |
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/** |
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* Copyright Andrea Heigl <[email protected]> |
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* |
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* Licenses under the MIT-license. For details see the included file LICENSE.md |
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*/ |
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namespace Callingallpapers\Subcommands\Sessionize\Parser; |
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use Callingallpapers\Entity\Cfp; |
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use Callingallpapers\Service\ServiceContainer; |
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use Callingallpapers\Service\TimezoneService; |
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use DateTimeZone; |
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use DOMDocument; |
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use DOMXPath; |
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use Exception; |
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use GuzzleHttp\Client; |
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use InvalidArgumentException; |
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class EntryParser |
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{ |
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private $cfp; |
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private $timezoneService; |
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private $geolocationService; |
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public function __construct(Cfp $cfp, ServiceContainer $container) |
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{ |
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$this->cfp = $cfp; |
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$this->timezoneService = $container->getTimezoneService(); |
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$this->geolocationService = $container->getGeolocationService(); |
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} |
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public function parse($uri) |
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{ |
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$cfp = clone($this->cfp); |
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try { |
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$dom = new DOMDocument('1.0', 'UTF-8'); |
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$content = file_get_contents($uri); |
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$content = mb_convert_encoding($content, 'UTF-8'); |
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$content = preg_replace('/\<!DOCTYPE[^\>]*?\>/im', '', $content); |
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$dom->loadHTML( |
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'<?xml version="1.0" encoding="UTF-8" ?>' . $content, |
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LIBXML_NOBLANKS ^ LIBXML_NOERROR ^ LIBXML_NOENT |
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); |
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$dom->preserveWhiteSpace = false; |
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$xpath = new DOMXPath($dom); |
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$eventLocation = new Location(); |
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$cfp->location = $eventLocation->parse($dom, $xpath); |
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try { |
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$location = $this->geolocationService->getLocationForAddress($cfp->location); |
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$cfp->latitude = $location->getLatitude(); |
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$cfp->longitude = $location->getLongitude(); |
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$timezone = $this->timezoneService->getTimezoneForLocation($location->getLatitude(), $location->getLongitude()); |
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} catch (\UnexpectedValueException $e) { |
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error_log($e->getMessage()); |
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} |
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$cfp->timezone = $timezone; |
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$timezone = new DateTimeZone($cfp->timezone); |
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$closingDateParser = new ClosingDate($timezone); |
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$cfp->dateEnd = $closingDateParser->parse($dom, $xpath); |
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$descriptionParser = new Description(); |
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$cfp->description = $descriptionParser->parse($dom, $xpath); |
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$openingDateParser = new OpeningDate($timezone); |
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try { |
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$cfp->dateStart = $openingDateParser->parse($dom, $xpath); |
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} catch (Exception $e) { |
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} |
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$cfp->uri = $uri; |
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$confNameParser = new EventName(); |
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$cfp->conferenceName = $confNameParser->parse($dom, $xpath); |
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$confUriParser = new EventUri(); |
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$cfp->conferenceUri = $confUriParser->parse($dom, $xpath); |
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$eventStartDate = new EventStartDate($timezone); |
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$cfp->eventStartDate = $eventStartDate->parse($dom, $xpath); |
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try { |
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$eventEndDate = new EventEndDate($timezone); |
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$cfp->eventEndDate = $eventEndDate->parse($dom, $xpath); |
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} catch (InvalidArgumentException $e) { |
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$cfp->eventEndDate = $cfp->eventStartDate; |
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} |
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$iconUri = new IconUri($uri); |
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$cfp->iconUri = $iconUri->parse($dom, $xpath); |
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return $cfp; |
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} catch (Exception $e) { |
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throw $e; |
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} |
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} |
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} |
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If you define a variable conditionally, it can happen that it is not defined for all execution paths.
Let’s take a look at an example:
In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.
Available Fixes
Check for existence of the variable explicitly:
Define a default value for the variable:
Add a value for the missing path: