晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Directory :  /home/rainic/public_html/wp-contentTZh/plugins/elementor/modules/pro-install/

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Current File : /home/rainic/public_html/wp-contentTZh/plugins/elementor/modules/pro-install/plugin-installer.php
<?php
namespace Elementor\Modules\ProInstall;

class Plugin_Installer {

	private $plugin_slug;
	private $package_url;

	public function __construct( $plugin_slug, $package_url = null ) {
		$this->plugin_slug = $plugin_slug;
		$this->package_url = $package_url;
	}

	public function install() {
		$this->includes_dependencies();

		$plugin_data = $this->get_plugin_path();
		if ( empty( $plugin_data ) ) {
			$install_result = $this->do_install();
			if ( null === $install_result || is_wp_error( $install_result ) ) {
				return new \WP_Error( 'cant_installed', esc_html__( 'There are no available subscriptions at the moment.', 'elementor' ) );
			}
		}

		$is_activated = $this->activate();
		if ( is_wp_error( $is_activated ) ) {
			return $is_activated;
		}

		return true;
	}

	private function get_package_url() {
		return $this->package_url;
	}

	private function includes_dependencies() {
		include_once ABSPATH . '/wp-admin/includes/admin.php';
		include_once ABSPATH . '/wp-admin/includes/plugin-install.php';
		include_once ABSPATH . '/wp-admin/includes/plugin.php';
		include_once ABSPATH . '/wp-admin/includes/class-wp-upgrader.php';
		include_once ABSPATH . '/wp-admin/includes/class-plugin-upgrader.php';
	}

	private function do_install() {
		$package_url = $this->get_package_url();
		if ( empty( $package_url ) ) {
			return new \WP_Error( 'no_package_url', sprintf( 'The requested plugin `%s` has no package URL', $this->plugin_slug ) );
		}

		$upgrader = new \Plugin_Upgrader( new \Automatic_Upgrader_Skin() );

		return $upgrader->install( $package_url );
	}

	private function get_plugin_path() {
		$plugins = get_plugins();
		$installed_plugins = [];

		foreach ( $plugins as $path => $plugin ) {
			$path_parts = explode( '/', $path );
			$slug = $path_parts[0];
			$installed_plugins[ $slug ] = $path;
		}

		if ( empty( $installed_plugins[ $this->plugin_slug ] ) ) {
			return false;
		}

		return $installed_plugins[ $this->plugin_slug ];
	}

	public function activate() {
		$plugin_path = $this->get_plugin_path();

		if ( ! $plugin_path ) {
			return new \WP_Error( 'no_installed', sprintf( 'The requested plugin `%s` is not installed', $this->plugin_slug ) );
		}

		$activate_result = activate_plugin( $plugin_path );

		if ( is_wp_error( $activate_result ) ) {
			return $activate_result;
		}

		return true;
	}
}

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