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1 <?php
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2
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3 namespace Drupal\Core\Path;
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4
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5 use Symfony\Component\HttpFoundation\Request;
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6 use Symfony\Component\HttpFoundation\RequestStack;
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7
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8 /**
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9 * Represents the current path for the current request.
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10 *
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11 * Note: You should not rely on paths but rather on route names / parameters or
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12 * other indicators like context. For some fundamental parts, like routing or
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13 * path processing, there is unfortunately no way around dealing with paths.
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14 */
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15 class CurrentPathStack {
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16
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17 /**
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18 * Static cache of paths.
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19 *
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20 * @var \SplObjectStorage
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21 */
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22 protected $paths;
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23
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24 /**
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25 * The request stack.
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26 *
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27 * @var \Symfony\Component\HttpFoundation\RequestStack
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28 */
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29 protected $requestStack;
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30
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31 /**
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32 * Constructs a new CurrentPathStack instance.
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33 *
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34 * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
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35 * The request stack.
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36 */
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37 public function __construct(RequestStack $request_stack) {
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38 $this->requestStack = $request_stack;
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39 $this->paths = new \SplObjectStorage();
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40 }
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41
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42 /**
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43 * Returns the path of the current request.
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44 *
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45 * @param \Symfony\Component\HttpFoundation\Request $request
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46 * (optional) The request.
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47 *
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48 * @return string
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49 * Returns the path, without leading slashes.
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50 */
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51 public function getPath(Request $request = NULL) {
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52 if (!isset($request)) {
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53 $request = $this->requestStack->getCurrentRequest();
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54 }
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55 if (!isset($this->paths[$request])) {
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56 $this->paths[$request] = $request->getPathInfo();
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57 }
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58
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59 return $this->paths[$request];
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60 }
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61
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62 /**
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63 * Sets the current path.
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64 *
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65 * @param string $path
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66 * The path.
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67 * @param \Symfony\Component\HttpFoundation\Request $request
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68 * (optional) The request.
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69 *
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70 * @return $this
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71 */
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72 public function setPath($path, Request $request = NULL) {
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73 if (!isset($request)) {
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74 $request = $this->requestStack->getCurrentRequest();
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75 }
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76 $this->paths[$request] = $path;
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77
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78 return $this;
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79 }
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80
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81 }
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