/** * Prepares the given HTTP-query-string for the HTTP-request. * * HTTP-query-strings always should be utf8-encoded and urlencoded afterwards. * So "/path/file?test=tatütata" will be converted to "/path/file?test=tat%C3%BCtata": * * @param stirng The quetry-string (like "/path/file?test=tatütata") * @return string */ protected function prepareHTTPRequestQuery($query) { // If string already is a valid URL -> do nothing if (PHPCrawlerUtils::isValidUrlString($query)) { return $query; } // Decode query-string (for URLs that are partly urlencoded and partly not) $query = rawurldecode($query); // if query is already utf-8 encoded -> simply urlencode it, // otherwise encode it to utf8 first. if (PHPCrawlerEncodingUtils::isUTF8String($query) == true) { $query = rawurlencode($query); } else { $query = rawurlencode(utf8_encode($query)); } // Replace url-specific signs back $query = str_replace("%2F", "/", $query); $query = str_replace("%3F", "?", $query); $query = str_replace("%3D", "=", $query); $query = str_replace("%26", "&", $query); return $query; }
/** * Reconstructs a full qualified and normalized URL from a given link relating to the URL the link was found in. * * @param string $link The link (i.e. "../page.htm") * @param PHPCrawlerUrlPartsDescriptor $BaseUrl The base-URL the link was found in as PHPCrawlerUrlPartsDescriptor-object * * @return string The rebuild, full qualified and normilazed URL the link is leading to (i.e. "http://www.foo.com/page.htm"), * or NULL if the link couldn't be rebuild correctly. */ public static function buildURLFromLink($link, PHPCrawlerUrlPartsDescriptor $BaseUrl) { $url_parts = $BaseUrl->toArray(); // Dedoce HTML-entities $link = PHPCrawlerEncodingUtils::decodeHtmlEntities($link); // Remove anchor ("#..."), but ONLY at the end, not if # is at the beginning ! $link = preg_replace("/^(.{1,})#.{0,}\$/", "\\1", $link); // Cases // Strange link like "//foo.htm" -> make it to "http://foo.html" if (substr($link, 0, 2) == "//") { $link = "http:" . $link; } elseif (substr($link, 0, 1) == "/") { $link = $url_parts["protocol"] . $url_parts["host"] . ":" . $url_parts["port"] . $link; } elseif (substr($link, 0, 2) == "./") { $link = $url_parts["protocol"] . $url_parts["host"] . ":" . $url_parts["port"] . $url_parts["path"] . substr($link, 2); } elseif (preg_match("#^[a-z0-9-]{1,}(:\\/\\/)# i", $link)) { $link = $link; } elseif (preg_match("/^[a-zA-Z]{0,}:[^\\/]{0,1}/", $link)) { $link = ""; } elseif (substr($link, 0, 3) == "../") { $new_path = $url_parts["path"]; while (substr($link, 0, 3) == "../") { $new_path = preg_replace('/\\/[^\\/]{0,}\\/$/', "/", $new_path); $link = substr($link, 3); } $link = $url_parts["protocol"] . $url_parts["host"] . ":" . $url_parts["port"] . $new_path . $link; } elseif (substr($link, 0, 1) == "#") { $link = ""; } elseif (substr($link, 0, 1) == "?") { $link = $url_parts["protocol"] . $url_parts["host"] . ":" . $url_parts["port"] . $url_parts["path"] . $url_parts["file"] . $link; } else { $link = $url_parts["protocol"] . $url_parts["host"] . ":" . $url_parts["port"] . $url_parts["path"] . $link; } if ($link == "") { return null; } // Now, at least, replace all HTMLENTITIES with normal text. // I.E.: HTML-Code of the link is: <a href="index.php?x=1&y=2"> // -> Link has to be "index.php?x=1&y=2" //$link = PHPCrawlerEncodingUtils::decodeHtmlEntities($link); // Replace linebreaks in the link with "" (happens if a link in the sourcecode // linebreaks) $link = str_replace(array("\n", "\r"), "", $link); // "Normalize" URL $link = self::normalizeUrl($link); return $link; }