| 1 |
<?php |
| 2 |
|
| 3 |
namespace Code_Snippets; |
| 4 |
|
| 5 |
/** |
| 6 |
* Handles exporting snippets from the site in various downloadable formats |
| 7 |
* |
| 8 |
* @package Code_Snippets |
| 9 |
* @since 3.0.0 |
| 10 |
*/ |
| 11 |
class Export { |
| 12 |
|
| 13 |
/** |
| 14 |
* Array of snippet data fetched from the database |
| 15 |
* |
| 16 |
* @var array |
| 17 |
*/ |
| 18 |
private $snippets_list; |
| 19 |
|
| 20 |
/** |
| 21 |
* Class constructor |
| 22 |
* |
| 23 |
* @param array|int $ids List of snippet IDs to export. |
| 24 |
* @param string $table_name Name of the database table to fetch snippets from. |
| 25 |
*/ |
| 26 |
public function __construct( $ids, $table_name = '' ) { |
| 27 |
$this->fetch_snippets( $ids, $table_name ); |
| 28 |
} |
| 29 |
|
| 30 |
/** |
| 31 |
* Fetch the selected snippets from the database |
| 32 |
* |
| 33 |
* @param array|int $ids List of snippet IDs to export. |
| 34 |
* @param string $table_name Name of database table to fetch snippets from. |
| 35 |
*/ |
| 36 |
private function fetch_snippets( $ids, $table_name ) { |
| 37 |
|
| 38 |
if ( '' === $table_name ) { |
| 39 |
$table_name = code_snippets()->db->get_table_name(); |
| 40 |
} |
| 41 |
|
| 42 |
if ( ! is_array( $ids ) ) { |
| 43 |
$ids = array( $ids ); |
| 44 |
} |
| 45 |
|
| 46 |
$this->snippets_list = count( $ids ) ? get_snippets( $ids, $table_name ) : array(); |
| 47 |
} |
| 48 |
|
| 49 |
/** |
| 50 |
* Set up the current page to act like a downloadable file instead of being shown in the browser |
| 51 |
* |
| 52 |
* @param string $format File format. Used for file extension. |
| 53 |
* @param string $mime_type File MIME type. Used for Content-Type header. |
| 54 |
*/ |
| 55 |
private function do_headers( $format, $mime_type = 'text/plain' ) { |
| 56 |
|
| 57 |
/* Build the export filename */ |
| 58 |
if ( 1 === count( $this->snippets_list ) ) { |
| 59 |
/* If there is only snippet to export, use its name instead of the site name */ |
| 60 |
$title = strtolower( $this->snippets_list[0]->name ); |
| 61 |
} else { |
| 62 |
/* Otherwise, use the site name as set in Settings > General */ |
| 63 |
$title = strtolower( get_bloginfo( 'name' ) ); |
| 64 |
} |
| 65 |
|
| 66 |
$filename = "$title.code-snippets.$format"; |
| 67 |
$filename = apply_filters( 'code_snippets/export/filename', $filename, $title, $this->snippets_list ); |
| 68 |
|
| 69 |
/* Set HTTP headers */ |
| 70 |
header( 'Content-Disposition: attachment; filename=' . sanitize_file_name( $filename ) ); |
| 71 |
header( sprintf( "Content-Type: %s; charset=%s", sanitize_mime_type( $mime_type ), get_bloginfo( 'charset' ) ) ); |
| 72 |
} |
| 73 |
|
| 74 |
/** |
| 75 |
* Export snippets in JSON format |
| 76 |
*/ |
| 77 |
public function export_snippets() { |
| 78 |
$snippets = array(); |
| 79 |
|
| 80 |
foreach ( $this->snippets_list as $snippet ) { |
| 81 |
$fields = array( 'name', 'desc', 'tags', 'scope', 'code', 'priority' ); |
| 82 |
$final_snippet = array(); |
| 83 |
|
| 84 |
foreach ( $fields as $field ) { |
| 85 |
if ( ! empty( $snippet->$field ) ) { |
| 86 |
$final_snippet[ $field ] = str_replace( "\r\n", "\n", $snippet->$field ); |
| 87 |
} |
| 88 |
} |
| 89 |
|
| 90 |
if ( $final_snippet ) { |
| 91 |
$snippets[] = $final_snippet; |
| 92 |
} |
| 93 |
} |
| 94 |
|
| 95 |
$this->do_headers( 'json', 'application/json' ); |
| 96 |
|
| 97 |
$data = array( |
| 98 |
'generator' => 'Code Snippets v' . code_snippets()->version, |
| 99 |
'date_created' => gmdate( 'Y-m-d H:i' ), |
| 100 |
'snippets' => $snippets, |
| 101 |
); |
| 102 |
|
| 103 |
echo wp_json_encode( $data, apply_filters( 'code_snippets/export/json_encode_options', 0 ) ); |
| 104 |
exit; |
| 105 |
} |
| 106 |
|
| 107 |
/** |
| 108 |
* Export snippets to a downloadable file. |
| 109 |
* |
| 110 |
* The Pro version of this function can download snippets to .css and .js files. |
| 111 |
*/ |
| 112 |
public function download_snippets() { |
| 113 |
$this->download_php_snippets(); |
| 114 |
} |
| 115 |
|
| 116 |
/** |
| 117 |
* Generate a downloadable PHP file from a list of snippets |
| 118 |
* @phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped |
| 119 |
*/ |
| 120 |
public function download_php_snippets() { |
| 121 |
$this->do_headers( 'php', 'text/php' ); |
| 122 |
echo "<?php\n"; |
| 123 |
|
| 124 |
/** Loop through the snippets |
| 125 |
* @var Snippet $snippet |
| 126 |
*/ |
| 127 |
foreach ( $this->snippets_list as $snippet ) { |
| 128 |
$code = trim( $snippet->code ); |
| 129 |
|
| 130 |
if ( 'php' !== $snippet->type && 'html' !== $snippet->type || ! $code ) { |
| 131 |
continue; |
| 132 |
} |
| 133 |
|
| 134 |
echo "\n/**\n * $snippet->display_name\n"; |
| 135 |
|
| 136 |
if ( ! empty( $snippet->desc ) ) { |
| 137 |
/* Convert description to PhpDoc */ |
| 138 |
$desc = str_replace( "\n", "\n * ", $snippet->desc ); |
| 139 |
echo " *\n * ", wp_strip_all_tags( $desc ), "\n"; |
| 140 |
} |
| 141 |
|
| 142 |
echo " */\n"; |
| 143 |
|
| 144 |
if ( 'content' === $snippet->scope ) { |
| 145 |
$shortcode_tag = apply_filters( 'code_snippets_export_shortcode_tag', "code_snippets_export_$snippet->id", $snippet ); |
| 146 |
|
| 147 |
$code = sprintf( |
| 148 |
"add_shortcode( '%s', function () {\n\tob_start();\n\t?>\n\n\t%s\n\n\t<?php\n\treturn ob_get_clean();\n} );", |
| 149 |
$shortcode_tag, |
| 150 |
str_replace( "\n", "\n\t", $code ) |
| 151 |
); |
| 152 |
} |
| 153 |
|
| 154 |
echo $code, "\n"; |
| 155 |
} |
| 156 |
|
| 157 |
exit; |
| 158 |
} |
| 159 |
} |
| 160 |
|
