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09:11
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framework/helpers/BaseUrl.php (4 issues)

1
<?php
2
/**
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 * @link https://www.yiiframework.com/
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 * @copyright Copyright (c) 2008 Yii Software LLC
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 * @license https://www.yiiframework.com/license/
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 */
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namespace yii\helpers;
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use Yii;
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use yii\base\InvalidArgumentException;
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13
/**
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 * BaseUrl provides concrete implementation for [[Url]].
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 *
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 * Do not use BaseUrl. Use [[Url]] instead.
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 *
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 * @author Alexander Makarov <[email protected]>
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 * @since 2.0
20
 */
21
class BaseUrl
22
{
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    /**
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     * @var \yii\web\UrlManager URL manager to use for creating URLs
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     * @since 2.0.8
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     */
27
    public static $urlManager;
28
29
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    /**
31
     * Creates a URL for the given route.
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     *
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     * This method will use [[\yii\web\UrlManager]] to create a URL.
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     *
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     * You may specify the route as a string, e.g., `site/index`. You may also use an array
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     * if you want to specify additional query parameters for the URL being created. The
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     * array format must be:
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     *
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     * ```php
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     * // generates: /index.php?r=site/index&param1=value1&param2=value2
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     * ['site/index', 'param1' => 'value1', 'param2' => 'value2']
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     * ```
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     *
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     * If you want to create a URL with an anchor, you can use the array format with a `#` parameter.
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     * For example,
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     *
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     * ```php
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     * // generates: /index.php?r=site/index&param1=value1#name
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     * ['site/index', 'param1' => 'value1', '#' => 'name']
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     * ```
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     *
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     * A route may be either absolute or relative. An absolute route has a leading slash (e.g. `/site/index`),
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     * while a relative route has none (e.g. `site/index` or `index`). A relative route will be converted
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     * into an absolute one by the following rules:
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     *
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     * - If the route is an empty string, the current [[\yii\web\Controller::route|route]] will be used;
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     * - If the route contains no slashes at all (e.g. `index`), it is considered to be an action ID
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     *   of the current controller and will be prepended with [[\yii\web\Controller::uniqueId]];
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     * - If the route has no leading slash (e.g. `site/index`), it is considered to be a route relative
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     *   to the current module and will be prepended with the module's [[\yii\base\Module::uniqueId|uniqueId]].
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     *
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     * Starting from version 2.0.2, a route can also be specified as an alias. In this case, the alias
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     * will be converted into the actual route first before conducting the above transformation steps.
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     *
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     * Below are some examples of using this method:
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     *
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     * ```php
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     * // /index.php?r=site%2Findex
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     * echo Url::toRoute('site/index');
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     *
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     * // /index.php?r=site%2Findex&src=ref1#name
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     * echo Url::toRoute(['site/index', 'src' => 'ref1', '#' => 'name']);
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     *
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     * // https://www.example.com/index.php?r=site%2Findex
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     * echo Url::toRoute('site/index', true);
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     *
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     * // https://www.example.com/index.php?r=site%2Findex
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     * echo Url::toRoute('site/index', 'https');
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     *
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     * // /index.php?r=post%2Findex     assume the alias "@posts" is defined as "post/index"
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     * echo Url::toRoute('@posts');
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     * ```
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     *
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     * @param string|array $route use a string to represent a route (e.g. `index`, `site/index`),
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     * or an array to represent a route with query parameters (e.g. `['site/index', 'param1' => 'value1']`).
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     * @param bool|string $scheme the URI scheme to use in the generated URL:
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     *
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     * - `false` (default): generating a relative URL.
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     * - `true`: returning an absolute base URL whose scheme is the same as that in [[\yii\web\UrlManager::$hostInfo]].
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     * - string: generating an absolute URL with the specified scheme (either `http`, `https` or empty string
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     *   for protocol-relative URL).
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     *
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     * @return string the generated URL
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     * @throws InvalidArgumentException a relative route is given while there is no active controller
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     */
96 14
    public static function toRoute($route, $scheme = false)
97
    {
98 14
        $route = (array) $route;
99 14
        $route[0] = static::normalizeRoute($route[0]);
100
101 14
        if ($scheme !== false) {
102 3
            return static::getUrlManager()->createAbsoluteUrl($route, is_string($scheme) ? $scheme : null);
103
        }
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105 13
        return static::getUrlManager()->createUrl($route);
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    }
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    /**
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     * Normalizes route and makes it suitable for UrlManager. Absolute routes are staying as is
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     * while relative routes are converted to absolute ones.
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     *
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     * A relative route is a route without a leading slash, such as "view", "post/view".
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     *
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     * - If the route is an empty string, the current [[\yii\web\Controller::route|route]] will be used;
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     * - If the route contains no slashes at all, it is considered to be an action ID
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     *   of the current controller and will be prepended with [[\yii\web\Controller::uniqueId]];
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     * - If the route has no leading slash, it is considered to be a route relative
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     *   to the current module and will be prepended with the module's uniqueId.
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     *
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     * Starting from version 2.0.2, a route can also be specified as an alias. In this case, the alias
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     * will be converted into the actual route first before conducting the above transformation steps.
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     *
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     * @param string $route the route. This can be either an absolute route or a relative route.
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     * @return string normalized route suitable for UrlManager
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     * @throws InvalidArgumentException a relative route is given while there is no active controller
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     */
127 14
    protected static function normalizeRoute($route)
128
    {
129 14
        $route = Yii::getAlias((string) $route);
130 14
        if (strncmp($route, '/', 1) === 0) {
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            // absolute route
132 13
            return ltrim($route, '/');
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        }
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        // relative route
136 3
        if (Yii::$app->controller === null) {
137 2
            throw new InvalidArgumentException("Unable to resolve the relative route: $route. No active controller is available.");
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        }
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140 3
        if (strpos($route, '/') === false) {
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            // empty or an action ID
142 3
            return $route === '' ? Yii::$app->controller->getRoute() : Yii::$app->controller->getUniqueId() . '/' . $route;
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        }
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        // relative to module
146 1
        return ltrim(Yii::$app->controller->module->getUniqueId() . '/' . $route, '/');
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    }
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    /**
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     * Creates a URL based on the given parameters.
151
     *
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     * This method is very similar to [[toRoute()]]. The only difference is that this method
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     * requires a route to be specified as an array only. If a string is given, it will be treated as a URL.
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     * In particular, if `$url` is
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     *
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     * - an array: [[toRoute()]] will be called to generate the URL. For example:
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     *   `['site/index']`, `['post/index', 'page' => 2]`. Please refer to [[toRoute()]] for more details
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     *   on how to specify a route.
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     * - a string with a leading `@`: it is treated as an alias, and the corresponding aliased string
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     *   will be returned.
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     * - an empty string: the currently requested URL will be returned;
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     * - a normal string: it will be returned as is.
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     *
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     * When `$scheme` is specified (either a string or `true`), an absolute URL with host info (obtained from
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     * [[\yii\web\UrlManager::$hostInfo]]) will be returned. If `$url` is already an absolute URL, its scheme
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     * will be replaced with the specified one.
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     *
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     * Below are some examples of using this method:
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     *
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     * ```php
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     * // /index.php?r=site%2Findex
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     * echo Url::to(['site/index']);
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     *
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     * // /index.php?r=site%2Findex&src=ref1#name
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     * echo Url::to(['site/index', 'src' => 'ref1', '#' => 'name']);
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     *
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     * // /index.php?r=post%2Findex     assume the alias "@posts" is defined as "/post/index"
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     * echo Url::to(['@posts']);
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     *
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     * // the currently requested URL
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     * echo Url::to();
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     *
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     * // /images/logo.gif
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     * echo Url::to('@web/images/logo.gif');
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     *
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     * // images/logo.gif
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     * echo Url::to('images/logo.gif');
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     *
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     * // https://www.example.com/images/logo.gif
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     * echo Url::to('@web/images/logo.gif', true);
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     *
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     * // https://www.example.com/images/logo.gif
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     * echo Url::to('@web/images/logo.gif', 'https');
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     *
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     * // //www.example.com/images/logo.gif
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     * echo Url::to('@web/images/logo.gif', '');
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     * ```
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     *
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     *
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     * @param array|string $url the parameter to be used to generate a valid URL
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     * @param bool|string $scheme the URI scheme to use in the generated URL:
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     *
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     * - `false` (default): generating a relative URL.
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     * - `true`: returning an absolute base URL whose scheme is the same as that in [[\yii\web\UrlManager::$hostInfo]].
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     * - string: generating an absolute URL with the specified scheme (either `http`, `https` or empty string
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     *   for protocol-relative URL).
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     *
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     * @return string the generated URL
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     * @throws InvalidArgumentException a relative route is given while there is no active controller
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     */
211 153
    public static function to($url = '', $scheme = false)
212
    {
213 153
        if (is_array($url)) {
214 12
            return static::toRoute($url, $scheme);
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        }
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217 145
        $url = Yii::getAlias($url);
218 145
        if ($url === '') {
219 9
            $url = Yii::$app->getRequest()->getUrl();
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        }
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222 145
        if ($scheme === false) {
223 145
            return $url;
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        }
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226 1
        if (static::isRelative($url)) {
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            // turn relative URL into absolute
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            $url = static::getUrlManager()->getHostInfo() . '/' . ltrim($url, '/');
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        }
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        return static::ensureScheme($url, $scheme);
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    }
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    /**
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     * Normalize the URL by ensuring it uses specified scheme.
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     *
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     * If the URL is relative or the scheme is not a string, normalization is skipped.
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     *
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     * @param string $url the URL to process
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     * @param string $scheme the URI scheme used in the URL (e.g. `http` or `https`). Use an empty string to
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     * create protocol-relative URL (e.g. `//example.com/path`)
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     * @return string the processed URL
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     * @since 2.0.11
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     */
245 63
    public static function ensureScheme($url, $scheme)
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    {
247 63
        if (static::isRelative($url) || !is_string($scheme)) {
248 58
            return $url;
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        }
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251 22
        if (strncmp($url, '//', 2) === 0) {
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            // e.g. //example.com/path/to/resource
253 2
            return $scheme === '' ? $url : "$scheme:$url";
254
        }
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256 22
        if (($pos = strpos($url, '://')) !== false) {
257 22
            if ($scheme === '') {
258 17
                $url = substr($url, $pos + 1);
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            } else {
260 22
                $url = $scheme . substr($url, $pos);
261
            }
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        }
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264 22
        return $url;
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    }
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    /**
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     * Returns the base URL of the current request.
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     * @param bool|string $scheme the URI scheme to use in the returned base URL:
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     *
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     * - `false` (default): returning the base URL without host info.
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     * - `true`: returning an absolute base URL whose scheme is the same as that in [[\yii\web\UrlManager::$hostInfo]].
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     * - string: returning an absolute base URL with the specified scheme (either `http`, `https` or empty string
274
     *   for protocol-relative URL).
275
     * @return string
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     */
277 1
    public static function base($scheme = false)
278
    {
279 1
        $url = static::getUrlManager()->getBaseUrl();
280 1
        if ($scheme !== false) {
281 1
            $url = static::getUrlManager()->getHostInfo() . $url;
282 1
            $url = static::ensureScheme($url, $scheme);
283
        }
284
285 1
        return $url;
286
    }
287
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    /**
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     * Remembers the specified URL so that it can be later fetched back by [[previous()]].
290
     *
291
     * @param string|array $url the URL to remember. Please refer to [[to()]] for acceptable formats.
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     * If this parameter is not specified, the currently requested URL will be used.
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     * @param string|null $name the name associated with the URL to be remembered. This can be used
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     * later by [[previous()]]. If not set, [[\yii\web\User::setReturnUrl()]] will be used with passed URL.
295
     * @see previous()
296
     * @see \yii\web\User::setReturnUrl()
297
     */
298 1
    public static function remember($url = '', $name = null)
299
    {
300 1
        $url = static::to($url);
301
302 1
        if ($name === null) {
303 1
            Yii::$app->getUser()->setReturnUrl($url);
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303
            Yii::$app->/** @scrutinizer ignore-call */ 
304
                       getUser()->setReturnUrl($url);
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304
        } else {
305 1
            Yii::$app->getSession()->set($name, $url);
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305
            Yii::$app->/** @scrutinizer ignore-call */ 
306
                       getSession()->set($name, $url);
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306
        }
307 1
    }
308
309
    /**
310
     * Returns the URL previously [[remember()|remembered]].
311
     *
312
     * @param string|null $name the named associated with the URL that was remembered previously.
313
     * If not set, [[\yii\web\User::getReturnUrl()]] will be used to obtain remembered URL.
314
     * @return string|null the URL previously remembered. Null is returned if no URL was remembered with the given name
315
     * and `$name` is not specified.
316
     * @see remember()
317
     * @see \yii\web\User::getReturnUrl()
318
     */
319 1
    public static function previous($name = null)
320
    {
321 1
        if ($name === null) {
322 1
            return Yii::$app->getUser()->getReturnUrl();
323
        }
324
325 1
        return Yii::$app->getSession()->get($name);
326
    }
327
328
    /**
329
     * Returns the canonical URL of the currently requested page.
330
     *
331
     * The canonical URL is constructed using the current controller's [[\yii\web\Controller::route]] and
332
     * [[\yii\web\Controller::actionParams]]. You may use the following code in the layout view to add a link tag
333
     * about canonical URL:
334
     *
335
     * ```php
336
     * $this->registerLinkTag(['rel' => 'canonical', 'href' => Url::canonical()]);
337
     * ```
338
     *
339
     * @return string the canonical URL of the currently requested page
340
     */
341 1
    public static function canonical()
342
    {
343 1
        $params = Yii::$app->controller->actionParams;
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344 1
        $params[0] = Yii::$app->controller->getRoute();
345
346 1
        return static::getUrlManager()->createAbsoluteUrl($params);
347
    }
348
349
    /**
350
     * Returns the home URL.
351
     *
352
     * @param bool|string $scheme the URI scheme to use for the returned URL:
353
     *
354
     * - `false` (default): returning a relative URL.
355
     * - `true`: returning an absolute base URL whose scheme is the same as that in [[\yii\web\UrlManager::$hostInfo]].
356
     * - string: returning an absolute URL with the specified scheme (either `http`, `https` or empty string
357
     *   for protocol-relative URL).
358
     *
359
     * @return string home URL
360
     */
361 1
    public static function home($scheme = false)
362
    {
363 1
        $url = Yii::$app->getHomeUrl();
0 ignored issues
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If this is a false-positive, you can also ignore this issue in your code via the ignore-call  annotation

363
        /** @scrutinizer ignore-call */ 
364
        $url = Yii::$app->getHomeUrl();
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364
365 1
        if ($scheme !== false) {
366 1
            $url = static::getUrlManager()->getHostInfo() . $url;
367 1
            $url = static::ensureScheme($url, $scheme);
368
        }
369
370 1
        return $url;
371
    }
372
373
    /**
374
     * Returns a value indicating whether a URL is relative.
375
     * A relative URL does not have host info part.
376
     * @param string $url the URL to be checked
377
     * @return bool whether the URL is relative
378
     */
379 105
    public static function isRelative($url)
380
    {
381 105
        return strncmp($url, '//', 2) && strpos($url, '://') === false;
382
    }
383
384
    /**
385
     * Creates a URL by using the current route and the GET parameters.
386
     *
387
     * You may modify or remove some of the GET parameters, or add additional query parameters through
388
     * the `$params` parameter. In particular, if you specify a parameter to be null, then this parameter
389
     * will be removed from the existing GET parameters; all other parameters specified in `$params` will
390
     * be merged with the existing GET parameters. For example,
391
     *
392
     * ```php
393
     * // assume $_GET = ['id' => 123, 'src' => 'google'], current route is "post/view"
394
     *
395
     * // /index.php?r=post%2Fview&id=123&src=google
396
     * echo Url::current();
397
     *
398
     * // /index.php?r=post%2Fview&id=123
399
     * echo Url::current(['src' => null]);
400
     *
401
     * // /index.php?r=post%2Fview&id=100&src=google
402
     * echo Url::current(['id' => 100]);
403
     * ```
404
     *
405
     * Note that if you're replacing array parameters with `[]` at the end you should specify `$params` as nested arrays.
406
     * For a `PostSearchForm` model where parameter names are `PostSearchForm[id]` and `PostSearchForm[src]` the syntax
407
     * would be the following:
408
     *
409
     * ```php
410
     * // index.php?r=post%2Findex&PostSearchForm%5Bid%5D=100&PostSearchForm%5Bsrc%5D=google
411
     * echo Url::current([
412
     *     $postSearch->formName() => ['id' => 100, 'src' => 'google'],
413
     * ]);
414
     * ```
415
     *
416
     * @param array $params an associative array of parameters that will be merged with the current GET parameters.
417
     * If a parameter value is null, the corresponding GET parameter will be removed.
418
     * @param bool|string $scheme the URI scheme to use in the generated URL:
419
     *
420
     * - `false` (default): generating a relative URL.
421
     * - `true`: returning an absolute base URL whose scheme is the same as that in [[\yii\web\UrlManager::$hostInfo]].
422
     * - string: generating an absolute URL with the specified scheme (either `http`, `https` or empty string
423
     *   for protocol-relative URL).
424
     *
425
     * @return string the generated URL
426
     * @since 2.0.3
427
     */
428 1
    public static function current(array $params = [], $scheme = false)
429
    {
430 1
        $currentParams = Yii::$app->getRequest()->getQueryParams();
431 1
        $currentParams[0] = '/' . Yii::$app->controller->getRoute();
432 1
        $route = array_replace_recursive($currentParams, $params);
433 1
        return static::toRoute($route, $scheme);
434
    }
435
436
    /**
437
     * @return \yii\web\UrlManager URL manager used to create URLs
438
     * @since 2.0.8
439
     */
440 17
    protected static function getUrlManager()
441
    {
442 17
        return static::$urlManager ?: Yii::$app->getUrlManager();
443
    }
444
}
445