| 1 |
<?php |
| 2 |
|
| 3 |
/** |
| 4 |
* This file includes functions for importing and exporting snippets |
| 5 |
*/ |
| 6 |
|
| 7 |
|
| 8 |
/** |
| 9 |
* |
| 10 |
* @access private |
| 11 |
* |
| 12 |
* @param $snippets |
| 13 |
* @param null $multisite |
| 14 |
* @param string $dup_action |
| 15 |
* |
| 16 |
* @return array |
| 17 |
*/ |
| 18 |
function _code_snippets_save_imported_snippets( $snippets, $multisite = null, $dup_action = 'ignore' ) { |
| 19 |
|
| 20 |
/* Get a list of existing snippet names keyed to their IDs */ |
| 21 |
$existing_snippets = array(); |
| 22 |
if ( 'replace' == $dup_action || 'skip' === $dup_action ) { |
| 23 |
$all_snippets = get_snippets( array(), $multisite ); |
| 24 |
|
| 25 |
foreach ( $all_snippets as $snippet ) { |
| 26 |
if ( $snippet->name ) { |
| 27 |
$existing_snippets[ $snippet->name ] = $snippet->id; |
| 28 |
} |
| 29 |
} |
| 30 |
} |
| 31 |
|
| 32 |
/* Save a record of the snippets which were imported */ |
| 33 |
$imported = array(); |
| 34 |
|
| 35 |
/* Loop through the provided snippets */ |
| 36 |
foreach ( $snippets as $snippet ) { |
| 37 |
|
| 38 |
/* Check if the snippet already exists */ |
| 39 |
if ( 'ignore' !== $dup_action && isset( $existing_snippets[ $snippet->name ] ) ) { |
| 40 |
|
| 41 |
/* If so, either overwrite the existing ID, or skip this import */ |
| 42 |
if ( 'replace' === $dup_action ) { |
| 43 |
$snippet->id = $existing_snippets[ $snippet->name ]; |
| 44 |
} elseif ( 'skip' === $dup_action ) { |
| 45 |
continue; |
| 46 |
} |
| 47 |
} |
| 48 |
|
| 49 |
/* Save the snippet and increase the counter if successful */ |
| 50 |
if ( $snippet_id = save_snippet( $snippet ) ) { |
| 51 |
$imported[] = $snippet_id; |
| 52 |
} |
| 53 |
} |
| 54 |
|
| 55 |
return $imported; |
| 56 |
} |
| 57 |
|
| 58 |
/** |
| 59 |
* Imports snippets from a JSON file |
| 60 |
* |
| 61 |
* @since 2.9.7 |
| 62 |
* |
| 63 |
* @uses save_snippet() to add the snippets to the database |
| 64 |
* |
| 65 |
* @param string $file The path to the file to import |
| 66 |
* @param bool|null $multisite Import into network-wide table or site-wide table? |
| 67 |
* @param string $dup_action Action to take if duplicate snippets are detected. Can be 'skip', 'ignore', or 'replace' |
| 68 |
* |
| 69 |
* @return array|bool An array of imported snippet IDs on success, false on failure |
| 70 |
*/ |
| 71 |
function import_snippets_json( $file, $multisite = null, $dup_action = 'ignore' ) { |
| 72 |
|
| 73 |
if ( ! file_exists( $file ) || ! is_file( $file ) ) { |
| 74 |
return false; |
| 75 |
} |
| 76 |
|
| 77 |
$raw_data = file_get_contents( $file ); |
| 78 |
$data = json_decode( $raw_data, true ); |
| 79 |
$snippets = array(); |
| 80 |
|
| 81 |
/* Reformat the data into snippet objects */ |
| 82 |
foreach ( $data['snippets'] as $snippet ) { |
| 83 |
$snippet = new Code_Snippet( $snippet ); |
| 84 |
$snippet->network = $multisite; |
| 85 |
$snippets[] = $snippet; |
| 86 |
} |
| 87 |
|
| 88 |
$imported = _code_snippets_save_imported_snippets( $snippets, $multisite, $dup_action ); |
| 89 |
do_action( 'code_snippets/import/json', $file, $multisite ); |
| 90 |
return $imported; |
| 91 |
} |
| 92 |
|
| 93 |
/** |
| 94 |
* Imports snippets from an XML file |
| 95 |
* |
| 96 |
* @since 2.0 |
| 97 |
* |
| 98 |
* @uses save_snippet() to add the snippets to the database |
| 99 |
* |
| 100 |
* @param string $file The path to the file to import |
| 101 |
* @param bool|null $multisite Import into network-wide table or site-wide table? |
| 102 |
* @param string $dup_action Action to take if duplicate snippets are detected. Can be 'skip', 'ignore', or 'replace' |
| 103 |
* |
| 104 |
* @return array|bool An array of imported snippet IDs on success, false on failure |
| 105 |
*/ |
| 106 |
function import_snippets_xml( $file, $multisite = null, $dup_action = 'ignore' ) { |
| 107 |
|
| 108 |
if ( ! file_exists( $file ) || ! is_file( $file ) ) { |
| 109 |
return false; |
| 110 |
} |
| 111 |
|
| 112 |
$dom = new DOMDocument( '1.0', get_bloginfo( 'charset' ) ); |
| 113 |
$dom->load( $file ); |
| 114 |
|
| 115 |
$snippets_xml = $dom->getElementsByTagName( 'snippet' ); |
| 116 |
$fields = array( 'name', 'description', 'desc', 'code', 'tags', 'scope' ); |
| 117 |
|
| 118 |
$snippets = array(); |
| 119 |
|
| 120 |
/* Loop through all snippets */ |
| 121 |
|
| 122 |
/** @var DOMElement $snippet_xml */ |
| 123 |
foreach ( $snippets_xml as $snippet_xml ) { |
| 124 |
$snippet = new Code_Snippet(); |
| 125 |
$snippet->network = $multisite; |
| 126 |
|
| 127 |
/* Build a snippet object by looping through the field names */ |
| 128 |
foreach ( $fields as $field_name ) { |
| 129 |
|
| 130 |
/* Fetch the field element from the document */ |
| 131 |
$field = $snippet_xml->getElementsByTagName( $field_name )->item( 0 ); |
| 132 |
|
| 133 |
/* If the field element exists, add it to the snippet object */ |
| 134 |
if ( isset( $field->nodeValue ) ) { |
| 135 |
$snippet->set_field( $field_name, $field->nodeValue ); |
| 136 |
} |
| 137 |
} |
| 138 |
|
| 139 |
/* Get scope from attribute */ |
| 140 |
$scope = $snippet_xml->getAttribute( 'scope' ); |
| 141 |
if ( ! empty( $scope ) ) { |
| 142 |
$snippet->scope = $scope; |
| 143 |
} |
| 144 |
|
| 145 |
$snippets[] = $snippet; |
| 146 |
} |
| 147 |
|
| 148 |
$imported = _code_snippets_save_imported_snippets( $snippets, $dup_action, $multisite ); |
| 149 |
do_action( 'code_snippets/import/xml', $file, $multisite ); |
| 150 |
return $imported; |
| 151 |
} |
| 152 |
|
| 153 |
/** |
| 154 |
* Set up the current page to act like a downloadable file instead of being shown in the browser |
| 155 |
* |
| 156 |
* @param string $format |
| 157 |
* @param array $ids |
| 158 |
* @param string $table_name |
| 159 |
* @param string $mime_type |
| 160 |
* |
| 161 |
* @return array |
| 162 |
*/ |
| 163 |
function code_snippets_prepare_export( $format, $ids, $table_name = '', $mime_type = '' ) { |
| 164 |
global $wpdb; |
| 165 |
|
| 166 |
/* Fetch the snippets from the database */ |
| 167 |
if ( '' === $table_name ) { |
| 168 |
$table_name = code_snippets()->db->get_table_name(); |
| 169 |
} |
| 170 |
|
| 171 |
if ( count( $ids ) ) { |
| 172 |
|
| 173 |
$sql = sprintf( |
| 174 |
'SELECT * FROM %s WHERE id IN (%s)', $table_name, |
| 175 |
implode( ',', array_fill( 0, count( $ids ), '%d' ) ) |
| 176 |
); |
| 177 |
|
| 178 |
$snippets = $wpdb->get_results( $wpdb->prepare( $sql, $ids ), ARRAY_A ); |
| 179 |
|
| 180 |
} else { |
| 181 |
$snippets = array(); |
| 182 |
} |
| 183 |
|
| 184 |
/* Build the export filename */ |
| 185 |
if ( 1 == count( $ids ) ) { |
| 186 |
/* If there is only snippet to export, use its name instead of the site name */ |
| 187 |
$first_snippet = new Code_Snippet( $snippets[0] ); |
| 188 |
$title = strtolower( $first_snippet->name ); |
| 189 |
} else { |
| 190 |
/* Otherwise, use the site name as set in Settings > General */ |
| 191 |
$title = strtolower( get_bloginfo( 'name' ) ); |
| 192 |
} |
| 193 |
|
| 194 |
$filename = "{$title}.code-snippets.{$format}"; |
| 195 |
$filename = apply_filters( 'code_snippets/export/filename', $filename, $title ); |
| 196 |
|
| 197 |
/* Set HTTP headers */ |
| 198 |
header( 'Content-Disposition: attachment; filename=' . sanitize_file_name( $filename ) ); |
| 199 |
|
| 200 |
if ( '' !== $mime_type ) { |
| 201 |
header( "Content-Type: $mime_type; charset=" . get_bloginfo( 'charset' ) ); |
| 202 |
} |
| 203 |
|
| 204 |
/* Return the retrieved snippets to build the rest of the export file */ |
| 205 |
return $snippets; |
| 206 |
} |
| 207 |
|
| 208 |
/** |
| 209 |
* Export snippets to a downloadable PHP file |
| 210 |
* |
| 211 |
* @param $ids |
| 212 |
* @param $table_name |
| 213 |
*/ |
| 214 |
function download_snippets( $ids, $table_name = '' ) { |
| 215 |
$snippets = code_snippets_prepare_export( 'php', $ids, $table_name ); |
| 216 |
|
| 217 |
echo "<?php\n"; |
| 218 |
|
| 219 |
/* Loop through the snippets */ |
| 220 |
foreach ( $snippets as $snippet ) { |
| 221 |
$snippet = new Code_Snippet( $snippet ); |
| 222 |
|
| 223 |
echo "\n/**\n * {$snippet->name}\n"; |
| 224 |
|
| 225 |
if ( ! empty( $snippet->desc ) ) { |
| 226 |
|
| 227 |
/* Convert description to PhpDoc */ |
| 228 |
$desc = strip_tags( str_replace( "\n", "\n * ", $snippet->desc ) ); |
| 229 |
|
| 230 |
echo " *\n * $desc\n"; |
| 231 |
} |
| 232 |
|
| 233 |
echo " */\n{$snippet->code}\n"; |
| 234 |
} |
| 235 |
|
| 236 |
exit; |
| 237 |
} |
| 238 |
|
| 239 |
/** |
| 240 |
* Export snippets in JSON format |
| 241 |
* |
| 242 |
* @param array $ids list of snippet IDs to export |
| 243 |
* @param string $table_name name of the database table to fetch snippets from |
| 244 |
*/ |
| 245 |
function export_snippets( $ids, $table_name = '' ) { |
| 246 |
$raw_snippets = code_snippets_prepare_export( 'json', $ids, $table_name, 'application/json' ); |
| 247 |
$final_snippets = array(); |
| 248 |
|
| 249 |
foreach ( $raw_snippets as $snippet ) { |
| 250 |
$snippet = new Code_Snippet( $snippet ); |
| 251 |
|
| 252 |
$fields = array( 'name', 'desc', 'tags', 'scope', 'code' ); |
| 253 |
$final_snippet = array(); |
| 254 |
|
| 255 |
foreach ( $fields as $field ) { |
| 256 |
if ( ! empty( $snippet->$field ) ) { |
| 257 |
$final_snippet[ $field ] = $snippet->$field; |
| 258 |
} |
| 259 |
} |
| 260 |
|
| 261 |
if ( $final_snippet ) { |
| 262 |
$final_snippets[] = $final_snippet; |
| 263 |
} |
| 264 |
} |
| 265 |
|
| 266 |
$data = array( |
| 267 |
'generator' => 'Code Snippets v' . CODE_SNIPPETS_VERSION, |
| 268 |
'date_created' => date( 'Y-m-d H:i' ), |
| 269 |
'snippets' => $final_snippets, |
| 270 |
); |
| 271 |
|
| 272 |
echo wp_json_encode( $data, apply_filters( 'code_snippets/export/json_encode_options', 0 ) ); |
| 273 |
exit; |
| 274 |
} |
| 275 |
|
