WordPressを読む 88 /blog/wp-content/plugins/crayon-syntax-highlighter/crayon_highlighter.class.php
/blog/wp-content/plugins/crayon-syntax-highlighter/crayon_highlighter.class.php
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 | <?php // Class includes require_once ('global.php'); require_once (CRAYON_PARSER_PHP); require_once (CRAYON_FORMATTER_PHP); require_once (CRAYON_SETTINGS_PHP); require_once (CRAYON_LANGS_PHP); /* The main class for managing the syntax highlighter */ class CrayonHighlighter { // Properties and Constants =============================================== private $id = ''; // URL is initially NULL, meaning none provided private $url = NULL; private $code = ''; private $formatted_code = ''; private $title = ''; private $line_count = 0; private $marked_lines = array(); private $range = NULL; private $error = ''; // Determine whether the code needs to be loaded, parsed or formatted private $needs_load = FALSE; private $needs_format = FALSE; // Record the script run times private $runtime = array(); // Whether the code is mixed private $is_mixed = FALSE; // Inline code on a single floating line private $is_inline = FALSE; private $is_highlighted = TRUE; // Objects // Stores the CrayonLang being used private $language = NULL; // A copy of the current global settings which can be overridden private $settings = NULL; // Methods ================================================================ function __construct($url = NULL, $language = NULL, $id = NULL) { if ($url !== NULL) { $this->url($url); } if ($language !== NULL) { $this->language($language); } // Default ID $id = $id !== NULL ? $id : uniqid(); $this->id($id); } /* Tries to load the code locally, then attempts to load it remotely */ private function load() { if (empty($this->url)) { $this->error('The specified URL is empty, please provide a valid URL.'); return; } /* Try to replace the URL with an absolute path if it is local, used to prevent scripts from executing when they are loaded. */ $url = $this->url; if ($this->setting_val(CrayonSettings::DECODE_ATTRIBUTES)) { $url = CrayonUtil::html_entity_decode($url); } $url = CrayonUtil::pathf($url); $local = FALSE; // Whether to read locally $site_http = CrayonGlobalSettings::site_url(); $site_path = CrayonGlobalSettings::site_path(); $scheme = parse_url($url, PHP_URL_SCHEME); // Try to replace the site URL with a path to force local loading if (strpos($url, $site_http) !== FALSE || strpos($url, $site_path) !== FALSE ) { $url = str_replace($site_http, $site_path, $url); // Attempt to load locally $local = TRUE; $local_url = $url; } else if (empty($scheme)) { // No url scheme is given - path may be given as relative $local_url = preg_replace('#^((\/|\\\\)*)?#', $site_path . $this->setting_val(CrayonSettings::LOCAL_PATH), $url); $local = TRUE; } // Try to find the file locally if ($local == TRUE) { if ( ($contents = CrayonUtil::file($local_url)) !== FALSE ) { $this->code($contents); } else { $local = FALSE; CrayonLog::log("Local url ($local_url) could not be loaded", '', FALSE); } } // If reading the url locally produced an error or failed, attempt remote request if ($local == FALSE) { if (empty($scheme)) { $url = (CrayonUtil::isSecure() ? 'https://' : 'http://') . $url; } $http_code = 0; // If available, use the built in wp remote http get function, we don't need SSL if (function_exists('wp_remote_get')) { $url_uid = 'crayon_' . CrayonUtil::str_uid($url); $cached = get_transient($url_uid, 'crayon-syntax'); CrayonSettingsWP::load_cache(); if ($cached !== FALSE) { $content = $cached; $http_code = 200; } else { $response = @wp_remote_get($url, array('sslverify' => false, 'timeout' => 20)); $content = wp_remote_retrieve_body($response); $http_code = wp_remote_retrieve_response_code($response); $cache = $this->setting_val(CrayonSettings::CACHE); $cache_sec = CrayonSettings::get_cache_sec($cache); if ($cache_sec > 1 && $http_code >= 200 && $http_code < 400) { set_transient($url_uid, $content, $cache_sec); CrayonSettingsWP::add_cache($url_uid); } } } else { $ch = curl_init($url); curl_setopt($ch, CURLOPT_HEADER, FALSE); curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE); // For https connections, we do not require SSL verification curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE); curl_setopt($ch, CURLOPT_FRESH_CONNECT, FALSE); curl_setopt($ch, CURLOPT_MAXREDIRS, 5); curl_setopt($ch, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']); $content = curl_exec($ch); $error = curl_error($ch); $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); curl_close($ch); } if ($http_code >= 200 && $http_code < 400) { $this->code($content); } else { if (empty($this->code)) { // If code is also given, just use that $this->error("The provided URL ('$this->url'), parsed remotely as ('$url'), could not be accessed."); } } } $this->needs_load = FALSE; } /* Central point of access for all other functions to update code. */ public function process() { $tmr = new CrayonTimer(); $this->runtime = NULL; if ($this->needs_load) { $tmr->start(); $this->load(); $this->runtime[CRAYON-68177bca8ee58601830712_LOAD_TIME] = $tmr->stop(); } if (!empty($this->error) || empty($this->code)) { // Disable highlighting for errors and empty code return; } if ($this->language === NULL) { $this->language_detect(); } if ($this->needs_format) { $tmr->start(); try { // Parse before hand to read modes $code = $this->code; // If inline, then combine lines into one if ($this->is_inline) { $code = preg_replace('#[\r\n]+#ms', '', $code); if ($this->setting_val(CrayonSettings::TRIM_WHITESPACE)) { $code = trim($code); } } // Decode html entities (e.g. if using visual editor or manually encoding) if ($this->setting_val(CrayonSettings::DECODE)) { $code = CrayonUtil::html_entity_decode($code); } // Save code so output is plain output is the same $this->code = $code; // Allow mixed if langauge supports it and setting is set CrayonParser::parse($this->language->id()); if (!$this->setting_val(CrayonSettings::MIXED) || !$this->language->mode(CrayonParser::ALLOW_MIXED)) { // Format the code with the generated regex and elements $this->formatted_code = CrayonFormatter::format_code($code, $this->language, $this); } else { // Format the code with Mixed Highlighting $this->formatted_code = CrayonFormatter::format_mixed_code($code, $this->language, $this); } } catch (Exception $e) { $this->error($e->message()); return; } $this->needs_format = FALSE; $this->runtime[CRAYON-68177bca8ee6b312564239_FORMAT_TIME] = $tmr->stop(); } } /* Used to format the glue in between code when finding mixed languages */ private function format_glue($glue, $highlight = TRUE) { // TODO $highlight return CrayonFormatter::format_code($glue, $this->language, $this, $highlight); } /* Sends the code to the formatter for printing. Apart from the getters and setters, this is the only other function accessible outside this class. $show_lines can also be a string. */ function output($show_lines = TRUE, $print = TRUE) { $this->process(); if (empty($this->error)) { // If no errors have occured, print the formatted code $ret = CrayonFormatter::print_code($this, $this->formatted_code, $show_lines, $print); } else { $ret = CrayonFormatter::print_error($this, $this->error, '', $print); } // Reset the error message at the end of the print session $this->error = ''; // If $print = FALSE, $ret will contain the output return $ret; } // Getters and Setters ==================================================== function code($code = NULL) { if ($code === NULL) { return $this->code; } else { // Trim whitespace if ($this->setting_val(CrayonSettings::TRIM_WHITESPACE)) { $code = preg_replace("#(?:^\\s*\\r?\\n)|(?:\\r?\\n\\s*$)#", '', $code); } if ($this->setting_val(CrayonSettings::TRIM_CODE_TAG)) { $code = preg_replace('#^\s*<\s*code[^>]*>#msi', '', $code); $code = preg_replace('#</\s*code[^>]*>\s*$#msi', '', $code); } $before = $this->setting_val(CrayonSettings::WHITESPACE_BEFORE); if ($before > 0) { $code = str_repeat("\n", $before) . $code; } $after = $this->setting_val(CrayonSettings::WHITESPACE_AFTER); if ($after > 0) { $code = $code . str_repeat("\n", $after); } if (!empty($code)) { $this->code = $code; $this->needs_format = TRUE; } } } function language($id = NULL) { if ($id === NULL || !is_string($id)) { return $this->language; } if ( ($lang = CrayonResources::langs()->get($id)) != FALSE || ($lang = CrayonResources::langs()->alias($id)) != FALSE ) { // Set the language if it exists or look for an alias $this->language = $lang; } else { $this->language_detect(); } // Prepare the language for use, even if we have no code, we need the name CrayonParser::parse($this->language->id()); } function language_detect() { // Attempt to detect the language if (!empty($id)) { $this->log("The language '$id' could not be loaded."); } $this->language = CrayonResources::langs()->detect($this->url, $this->setting_val(CrayonSettings::FALLBACK_LANG)); } function url($url = NULL) { if ($url === NULL) { return $this->url; } else { $this->url = $url; $this->needs_load = TRUE; } } function title($title = NULL) { if (!CrayonUtil::str($this->title, $title)) { return $this->title; } } function line_count($line_count = NULL) { if (!CrayonUtil::num($this->line_count, $line_count)) { return $this->line_count; } } function marked($str = NULL) { if ($str === NULL) { return $this->marked_lines; } // If only an int is given if (is_int($str)) { $array = array($str); return CrayonUtil::arr($this->marked_lines, $array); } // A string with ints separated by commas, can also contain ranges $array = CrayonUtil::trim_e($str); $array = array_unique($array); $lines = array(); foreach ($array as $line) { // Check for ranges if (strpos($line, '-') !== FALSE) { $ranges = CrayonUtil::range_str($line); $lines = array_merge($lines, $ranges); } else { // Otherwise check the string for a number $line = intval($line); if ($line !== 0) { $lines[] = $line; } } } return CrayonUtil::arr($this->marked_lines, $lines); } function range($str = NULL) { if ($str === NULL) { return $this->range; } else { $range = CrayonUtil::range_str_single($str); if ($range) { $this->range = $range; } } return FALSE; } function log($var) { if ($this->setting_val(CrayonSettings::ERROR_LOG)) { CrayonLog::log($var); } } function id($id = NULL) { if ($id == NULL) { return $this->id; } else { $this->id = strval($id); } } function error($string = NULL) { if (!$string) { return $this->error; } $this->error .= $string; $this->log($string); // Add the error string and ensure no further processing occurs $this->needs_load = FALSE; $this->needs_format = FALSE; } // Set and retreive settings // TODO fix this, it's too limiting function settings($mixed = NULL) { if ($this->settings == NULL) { $this->settings = CrayonGlobalSettings::get_obj(); } if ($mixed === NULL) { return $this->settings; } else if (is_string($mixed)) { return $this->settings->get($mixed); } else if (is_array($mixed)) { $this->settings->set($mixed); return TRUE; } return FALSE; } /* Retrieve a single setting's value for use in the formatter. By default, on failure it will * return TRUE to ensure FALSE is only sent when a setting is found. This prevents a fake * FALSE when the formatter checks for a positive setting (Show/Enable) and fails. When a * negative setting is needed (Hide/Disable), $default_return should be set to FALSE. */ // TODO fix this (see above) function setting_val($name = NULL, $default_return = TRUE) { if (is_string($name) && $setting = $this->settings($name)) { return $setting->value(); } else { // Name not valid return (is_bool($default_return) ? $default_return : TRUE); } } // Set a setting value // TODO fix this (see above) function setting_set($name = NULL, $value = TRUE) { $this->settings->set($name, $value); } // Used to find current index in dropdown setting function setting_index($name = NULL) { $setting = $this->settings($name); if (is_string($name) && $setting->is_array()) { return $setting->index(); } else { // Returns -1 to avoid accidentally selecting an item in a dropdown return CrayonSettings::INVALID; } } function formatted_code() { return $this->formatted_code; } function runtime() { return $this->runtime; } function is_highlighted($highlighted = NULL) { if ($highlighted === NULL) { return $this->is_highlighted; } else { $this->is_highlighted = $highlighted; } } function is_mixed($mixed = NULL) { if ($mixed === NULL) { return $this->is_mixed; } else { $this->is_mixed = $mixed; } } function is_inline($inline = NULL) { if ($inline === NULL) { return $this->is_inline; } else { $inline = CrayonUtil::str_to_bool($inline, FALSE); $this->is_inline = $inline; } } } ?> |