added a relative_path Twig function
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@ -4,7 +4,7 @@ CHANGELOG
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2.7.0
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-----
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* added an HttpFoundation extension (provides the `absolute_url` function)
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* added an HttpFoundation extension (provides the `absolute_url` and the `relative_path` functions)
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2.5.0
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-----
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@ -12,7 +12,7 @@
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namespace Symfony\Bridge\Twig\Extension;
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use Symfony\Component\HttpFoundation\RequestStack;
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use Symfony\Component\Asset\Packages;
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use Symfony\Component\HttpFoundation\Request;
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/**
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* Twig extension for the Symfony HttpFoundation component.
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@ -35,17 +35,20 @@ class HttpFoundationExtension extends \Twig_Extension
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{
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return array(
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new \Twig_SimpleFunction('absolute_url', array($this, 'generateAbsoluteUrl')),
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new \Twig_SimpleFunction('relative_path', array($this, 'generateRelativePath')),
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);
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}
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/**
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* Returns the absolute URL for the given path.
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* Returns the absolute URL for the given absolute or relative path.
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*
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* This method returns the path unchanged if no request is available.
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*
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* @param string $path The path
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*
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* @return string The absolute URL
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*
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* @see Request::getUriForPath()
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*/
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public function generateAbsoluteUrl($path)
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{
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@ -57,9 +60,43 @@ class HttpFoundationExtension extends \Twig_Extension
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return $path;
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}
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if (!$path || '/' !== $path[0]) {
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$prefix = $request->getPathInfo();
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$last = strlen($prefix) - 1;
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if ($last !== $pos = strrpos($prefix, '/')) {
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$prefix = substr($prefix, 0, $pos).'/';
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}
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$path = $prefix.$path;
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}
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return $request->getUriForPath($path);
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}
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/**
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* Returns a relative path based on the current Request.
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*
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* This method returns the path unchanged if no request is available.
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*
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* @param string $path The path
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*
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* @return string The relative path
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*
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* @see Request::getRelativeUriForPath()
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*/
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public function generateRelativePath($path)
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{
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if (false !== strpos($path, '://') || '//' === substr($path, 0, 2)) {
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return $path;
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}
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if (!$request = $this->requestStack->getMasterRequest()) {
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return $path;
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}
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return $request->getRelativeUriForPath($path);
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}
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/**
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* Returns the name of the extension.
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*
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@ -0,0 +1,74 @@
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Bridge\Twig\Tests\Extension;
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use Symfony\Bridge\Twig\Extension\HttpFoundationExtension;
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use Symfony\Component\HttpFoundation\RequestStack;
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use Symfony\Component\HttpFoundation\Request;
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class HttpFoundationExtensionTest extends \PHPUnit_Framework_TestCase
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{
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/**
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* @dataProvider getGenerateAbsoluteUrlData()
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*/
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public function testGenerateAbsoluteUrl($expected, $path, $pathinfo)
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{
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$stack = new RequestStack();
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$stack->push(Request::create($pathinfo));
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$extension = new HttpFoundationExtension($stack);
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$this->assertEquals($expected, $extension->generateAbsoluteUrl($path));
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}
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public function getGenerateAbsoluteUrlData()
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{
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return array(
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array('http://localhost/foo.png', '/foo.png', '/foo/bar.html'),
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array('http://localhost/foo/foo.png', 'foo.png', '/foo/bar.html'),
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array('http://localhost/foo/foo.png', 'foo.png', '/foo/bar'),
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array('http://localhost/foo/bar/foo.png', 'foo.png', '/foo/bar/'),
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array('http://example.com/baz', 'http://example.com/baz', '/'),
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array('https://example.com/baz', 'https://example.com/baz', '/'),
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array('//example.com/baz', '//example.com/baz', '/'),
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);
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}
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/**
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* @dataProvider getGenerateRelativePathData()
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*/
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public function testGenerateRelativePath($expected, $path, $pathinfo)
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{
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if (!method_exists('Symfony\Component\HttpFoundation\Request', 'getRelativeUriForPath')) {
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$this->markTestSkipped('Your version of Symfony HttpFoundation is too old.');
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}
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$stack = new RequestStack();
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$stack->push(Request::create($pathinfo));
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$extension = new HttpFoundationExtension($stack);
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$this->assertEquals($expected, $extension->generateRelativePath($path));
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}
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public function getGenerateRelativePathData()
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{
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return array(
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array('../foo.png', '/foo.png', '/foo/bar.html'),
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array('../baz/foo.png', '/baz/foo.png', '/foo/bar.html'),
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array('baz/foo.png', 'baz/foo.png', '/foo/bar.html'),
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array('http://example.com/baz', 'http://example.com/baz', '/'),
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array('https://example.com/baz', 'https://example.com/baz', '/'),
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array('//example.com/baz', '//example.com/baz', '/'),
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);
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}
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}
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@ -1137,6 +1137,61 @@ class Request
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return $this->getSchemeAndHttpHost().$this->getBaseUrl().$path;
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}
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/**
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* Returns the path as relative reference from the current Request path.
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*
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* Only the URIs path component (no schema, host etc.) is relevant and must be given.
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* Both paths must be absolute and not contain relative parts.
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* Relative URLs from one resource to another are useful when generating self-contained downloadable document archives.
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* Furthermore, they can be used to reduce the link size in documents.
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*
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* Example target paths, given a base path of "/a/b/c/d":
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* - "/a/b/c/d" -> ""
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* - "/a/b/c/" -> "./"
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* - "/a/b/" -> "../"
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* - "/a/b/c/other" -> "other"
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* - "/a/x/y" -> "../../x/y"
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*
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* @param string $path The target path
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*
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* @return string The relative target path
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*/
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public function getRelativeUriForPath($path)
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{
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// be sure that we are dealing with an absolute path
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if (!isset($path[0]) || '/' !== $path[0]) {
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return $path;
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}
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if ($path === $basePath = $this->getPathInfo()) {
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return '';
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}
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$sourceDirs = explode('/', isset($basePath[0]) && '/' === $basePath[0] ? substr($basePath, 1) : $basePath);
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$targetDirs = explode('/', isset($path[0]) && '/' === $path[0] ? substr($path, 1) : $path);
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array_pop($sourceDirs);
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$targetFile = array_pop($targetDirs);
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foreach ($sourceDirs as $i => $dir) {
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if (isset($targetDirs[$i]) && $dir === $targetDirs[$i]) {
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unset($sourceDirs[$i], $targetDirs[$i]);
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} else {
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break;
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}
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}
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$targetDirs[] = $targetFile;
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$path = str_repeat('../', count($sourceDirs)).implode('/', $targetDirs);
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// A reference to the same base directory or an empty subdirectory must be prefixed with "./".
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// This also applies to a segment with a colon character (e.g., "file:colon") that cannot be used
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// as the first segment of a relative-path reference, as it would be mistaken for a scheme name
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// (see http://tools.ietf.org/html/rfc3986#section-4.2).
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return !isset($path[0]) || '/' === $path[0]
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|| false !== ($colonPos = strpos($path, ':')) && ($colonPos < ($slashPos = strpos($path, '/')) || false === $slashPos)
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? "./$path" : $path;
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}
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/**
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* Generates the normalized query string for the Request.
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*
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@ -575,6 +575,26 @@ class RequestTest extends \PHPUnit_Framework_TestCase
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$this->assertEquals('http://servername/some/path', $request->getUriForPath('/some/path'));
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}
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/**
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* @dataProvider getRelativeUriForPathData()
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*/
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public function testGetRelativeUriForPath($expected, $pathinfo, $path)
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{
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$this->assertEquals($expected, Request::create($pathinfo)->getRelativeUriForPath($path));
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}
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public function getRelativeUriForPathData()
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{
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return array(
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array('me.png', '/foo', '/me.png'),
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array('../me.png', '/foo/bar', '/me.png'),
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array('me.png', '/foo/bar', '/foo/me.png'),
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array('../baz/me.png', '/foo/bar/b', '/foo/baz/me.png'),
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array('../../fooz/baz/me.png', '/foo/bar/b', '/fooz/baz/me.png'),
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array('baz/me.png', '/foo/bar/b', 'baz/me.png'),
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);
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}
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/**
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* @covers Symfony\Component\HttpFoundation\Request::getUserInfo
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*/
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