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<?php |
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|
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/** |
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* This file includes functions for importing and exporting snippets |
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*/ |
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|
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|
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/** |
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* @access private |
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* |
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* @param $snippets |
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* @param null $multisite |
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* @param string $dup_action |
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* |
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* @return array |
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*/ |
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function _code_snippets_save_imported_snippets( $snippets, $multisite = null, $dup_action = 'ignore' ) { |
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|
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/* Get a list of existing snippet names keyed to their IDs */ |
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$existing_snippets = array(); |
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if ( 'replace' == $dup_action || 'skip' === $dup_action ) { |
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$all_snippets = get_snippets( array(), $multisite ); |
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|
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foreach ( $all_snippets as $snippet ) { |
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if ( $snippet->name ) { |
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$existing_snippets[ $snippet->name ] = $snippet->id; |
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} |
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} |
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} |
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|
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/* Save a record of the snippets which were imported */ |
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$imported = array(); |
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|
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/* Loop through the provided snippets */ |
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foreach ( $snippets as $snippet ) { |
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|
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/* Check if the snippet already exists */ |
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if ( 'ignore' !== $dup_action && isset( $existing_snippets[ $snippet->name ] ) ) { |
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|
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/* If so, either overwrite the existing ID, or skip this import */ |
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if ( 'replace' === $dup_action ) { |
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$snippet->id = $existing_snippets[ $snippet->name ]; |
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} elseif ( 'skip' === $dup_action ) { |
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continue; |
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} |
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} |
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|
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/* Save the snippet and increase the counter if successful */ |
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if ( $snippet_id = save_snippet( $snippet ) ) { |
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$imported[] = $snippet_id; |
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} |
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} |
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|
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return $imported; |
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} |
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|
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/** |
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* Imports snippets from a JSON file |
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* |
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* @since 2.9.7 |
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* |
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* @uses save_snippet() to add the snippets to the database |
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* |
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* @param string $file The path to the file to import |
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* @param bool|null $multisite Import into network-wide table or site-wide table? |
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* @param string $dup_action Action to take if duplicate snippets are detected. Can be 'skip', 'ignore', or 'replace' |
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* |
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* @return array|bool An array of imported snippet IDs on success, false on failure |
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*/ |
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function import_snippets_json( $file, $multisite = null, $dup_action = 'ignore' ) { |
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|
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if ( ! file_exists( $file ) || ! is_file( $file ) ) { |
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return false; |
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} |
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|
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$raw_data = file_get_contents( $file ); |
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$data = json_decode( $raw_data, true ); |
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$snippets = array(); |
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|
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/* Reformat the data into snippet objects */ |
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foreach ( $data['snippets'] as $snippet ) { |
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$snippet = new Code_Snippet( $snippet ); |
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$snippet->network = $multisite; |
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$snippets[] = $snippet; |
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} |
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|
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$imported = _code_snippets_save_imported_snippets( $snippets, $multisite, $dup_action ); |
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do_action( 'code_snippets/import/json', $file, $multisite ); |
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|
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return $imported; |
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} |
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|
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/** |
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* Imports snippets from an XML file |
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* |
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* @since 2.0 |
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* |
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* @uses save_snippet() to add the snippets to the database |
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* |
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* @param string $file The path to the file to import |
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* @param bool|null $multisite Import into network-wide table or site-wide table? |
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* @param string $dup_action Action to take if duplicate snippets are detected. Can be 'skip', 'ignore', or 'replace' |
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* |
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* @return array|bool An array of imported snippet IDs on success, false on failure |
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*/ |
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function import_snippets_xml( $file, $multisite = null, $dup_action = 'ignore' ) { |
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|
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if ( ! file_exists( $file ) || ! is_file( $file ) ) { |
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return false; |
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} |
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|
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$dom = new DOMDocument( '1.0', get_bloginfo( 'charset' ) ); |
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$dom->load( $file ); |
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|
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$snippets_xml = $dom->getElementsByTagName( 'snippet' ); |
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$fields = array( 'name', 'description', 'desc', 'code', 'tags', 'scope' ); |
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|
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$snippets = array(); |
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|
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/* Loop through all snippets */ |
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|
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/** @var DOMElement $snippet_xml */ |
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foreach ( $snippets_xml as $snippet_xml ) { |
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$snippet = new Code_Snippet(); |
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$snippet->network = $multisite; |
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|
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/* Build a snippet object by looping through the field names */ |
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foreach ( $fields as $field_name ) { |
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|
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/* Fetch the field element from the document */ |
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$field = $snippet_xml->getElementsByTagName( $field_name )->item( 0 ); |
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|
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/* If the field element exists, add it to the snippet object */ |
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if ( isset( $field->nodeValue ) ) { |
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$snippet->set_field( $field_name, $field->nodeValue ); |
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} |
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} |
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|
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/* Get scope from attribute */ |
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$scope = $snippet_xml->getAttribute( 'scope' ); |
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if ( ! empty( $scope ) ) { |
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$snippet->scope = $scope; |
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} |
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|
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$snippets[] = $snippet; |
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} |
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|
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$imported = _code_snippets_save_imported_snippets( $snippets, $dup_action, $multisite ); |
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do_action( 'code_snippets/import/xml', $file, $multisite ); |
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|
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return $imported; |
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} |
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|
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/** |
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* Set up the current page to act like a downloadable file instead of being shown in the browser |
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* |
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* @param string $format |
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* @param array $ids |
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* @param string $table_name |
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* @param string $mime_type |
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* |
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* @return array |
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*/ |
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function code_snippets_prepare_export( $format, $ids, $table_name = '', $mime_type = '' ) { |
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global $wpdb; |
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|
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/* Fetch the snippets from the database */ |
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if ( '' === $table_name ) { |
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$table_name = code_snippets()->db->get_table_name(); |
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} |
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|
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if ( count( $ids ) ) { |
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|
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$sql = sprintf( |
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'SELECT * FROM %s WHERE id IN (%s)', $table_name, |
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implode( ',', array_fill( 0, count( $ids ), '%d' ) ) |
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); |
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|
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$snippets = $wpdb->get_results( $wpdb->prepare( $sql, $ids ), ARRAY_A ); |
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|
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} else { |
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$snippets = array(); |
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} |
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|
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/* Build the export filename */ |
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if ( 1 == count( $ids ) ) { |
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/* If there is only snippet to export, use its name instead of the site name */ |
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$first_snippet = new Code_Snippet( $snippets[0] ); |
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$title = strtolower( $first_snippet->name ); |
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} else { |
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/* Otherwise, use the site name as set in Settings > General */ |
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$title = strtolower( get_bloginfo( 'name' ) ); |
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} |
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|
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$filename = "{$title}.code-snippets.{$format}"; |
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$filename = apply_filters( 'code_snippets/export/filename', $filename, $title ); |
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|
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/* Set HTTP headers */ |
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header( 'Content-Disposition: attachment; filename=' . sanitize_file_name( $filename ) ); |
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|
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if ( '' !== $mime_type ) { |
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header( "Content-Type: $mime_type; charset=" . get_bloginfo( 'charset' ) ); |
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} |
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|
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/* Return the retrieved snippets to build the rest of the export file */ |
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|
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return $snippets; |
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} |
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|
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/** |
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* Export snippets to a downloadable PHP file |
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* |
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* @param $ids |
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* @param $table_name |
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*/ |
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function download_snippets( $ids, $table_name = '' ) { |
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$snippets = code_snippets_prepare_export( 'php', $ids, $table_name ); |
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|
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echo "<?php\n"; |
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|
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/* Loop through the snippets */ |
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foreach ( $snippets as $snippet ) { |
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$snippet = new Code_Snippet( $snippet ); |
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|
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echo "\n/**\n * {$snippet->name}\n"; |
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|
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if ( ! empty( $snippet->desc ) ) { |
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|
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/* Convert description to PhpDoc */ |
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$desc = strip_tags( str_replace( "\n", "\n * ", $snippet->desc ) ); |
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|
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echo " *\n * $desc\n"; |
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} |
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|
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echo " */\n{$snippet->code}\n"; |
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} |
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|
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exit; |
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} |
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|
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/** |
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* Export snippets in JSON format |
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* |
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* @param array $ids list of snippet IDs to export |
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* @param string $table_name name of the database table to fetch snippets from |
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*/ |
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function export_snippets( $ids, $table_name = '' ) { |
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$raw_snippets = code_snippets_prepare_export( 'json', $ids, $table_name, 'application/json' ); |
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$final_snippets = array(); |
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|
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foreach ( $raw_snippets as $snippet ) { |
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$snippet = new Code_Snippet( $snippet ); |
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|
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$fields = array( 'name', 'desc', 'tags', 'scope', 'code' ); |
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$final_snippet = array(); |
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|
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foreach ( $fields as $field ) { |
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if ( ! empty( $snippet->$field ) ) { |
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$final_snippet[ $field ] = $snippet->$field; |
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} |
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} |
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|
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if ( $final_snippet ) { |
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$final_snippets[] = $final_snippet; |
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} |
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} |
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|
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$data = array( |
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'generator' => 'Code Snippets v' . CODE_SNIPPETS_VERSION, |
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'date_created' => date( 'Y-m-d H:i' ), |
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'snippets' => $final_snippets, |
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); |
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|
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echo wp_json_encode( $data, apply_filters( 'code_snippets/export/json_encode_options', 0 ) ); |
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exit; |
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} |
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|
