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Direktori : /proc/thread-self/root/home2/selectio/www/fms-worksuite/vendor/dompdf/dompdf/src/ |
Current File : //proc/thread-self/root/home2/selectio/www/fms-worksuite/vendor/dompdf/dompdf/src/Helpers.php |
<?php /** * @package dompdf * @link https://github.com/dompdf/dompdf * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License */ namespace Dompdf; class Helpers { /** * print_r wrapper for html/cli output * * Wraps print_r() output in < pre > tags if the current sapi is not 'cli'. * Returns the output string instead of displaying it if $return is true. * * @param mixed $mixed variable or expression to display * @param bool $return * * @return string|null */ public static function pre_r($mixed, $return = false) { if ($return) { return "<pre>" . print_r($mixed, true) . "</pre>"; } if (php_sapi_name() !== "cli") { echo "<pre>"; } print_r($mixed); if (php_sapi_name() !== "cli") { echo "</pre>"; } else { echo "\n"; } flush(); return null; } /** * builds a full url given a protocol, hostname, base path and url * * @param string $protocol * @param string $host * @param string $base_path * @param string $url * @return string * * Initially the trailing slash of $base_path was optional, and conditionally appended. * However on dynamically created sites, where the page is given as url parameter, * the base path might not end with an url. * Therefore do not append a slash, and **require** the $base_url to ending in a slash * when needed. * Vice versa, on using the local file system path of a file, make sure that the slash * is appended (o.k. also for Windows) */ public static function build_url($protocol, $host, $base_path, $url) { $protocol = mb_strtolower($protocol); if (empty($protocol)) { $protocol = "file://"; } if ($url === "") { return null; } $url_lc = mb_strtolower($url); // Is the url already fully qualified, a Data URI, or a reference to a named anchor? // File-protocol URLs may require additional processing (e.g. for URLs with a relative path) if ( ( mb_strpos($url_lc, "://") !== false && !in_array(substr($url_lc, 0, 7), ["file://", "phar://"], true) ) || mb_substr($url_lc, 0, 1) === "#" || mb_strpos($url_lc, "data:") === 0 || mb_strpos($url_lc, "mailto:") === 0 || mb_strpos($url_lc, "tel:") === 0 ) { return $url; } $res = ""; if (strpos($url_lc, "file://") === 0) { $url = substr($url, 7); $protocol = "file://"; } elseif (strpos($url_lc, "phar://") === 0) { $res = substr($url, strpos($url_lc, ".phar")+5); $url = substr($url, 7, strpos($url_lc, ".phar")-2); $protocol = "phar://"; } $ret = ""; $is_local_path = in_array($protocol, ["file://", "phar://"], true); if ($is_local_path) { //On Windows local file, an abs path can begin also with a '\' or a drive letter and colon //drive: followed by a relative path would be a drive specific default folder. //not known in php app code, treat as abs path //($url[1] !== ':' || ($url[2]!=='\\' && $url[2]!=='/')) if ($url[0] !== '/' && (strtoupper(substr(PHP_OS, 0, 3)) !== 'WIN' || (mb_strlen($url) > 1 && $url[0] !== '\\' && $url[1] !== ':'))) { // For rel path and local access we ignore the host, and run the path through realpath() $ret .= realpath($base_path) . '/'; } $ret .= $url; $ret = preg_replace('/\?(.*)$/', "", $ret); $filepath = realpath($ret); if ($filepath === false) { return null; } $ret = "$protocol$filepath$res"; return $ret; } $ret = $protocol; // Protocol relative urls (e.g. "//example.org/style.css") if (strpos($url, '//') === 0) { $ret .= substr($url, 2); //remote urls with backslash in html/css are not really correct, but lets be genereous } elseif ($url[0] === '/' || $url[0] === '\\') { // Absolute path $ret .= $host . $url; } else { // Relative path //$base_path = $base_path !== "" ? rtrim($base_path, "/\\") . "/" : ""; $ret .= $host . $base_path . $url; } // URL should now be complete, final cleanup $parsed_url = parse_url($ret); // reproduced from https://www.php.net/manual/en/function.parse-url.php#106731 $scheme = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : ''; $host = isset($parsed_url['host']) ? $parsed_url['host'] : ''; $port = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : ''; $user = isset($parsed_url['user']) ? $parsed_url['user'] : ''; $pass = isset($parsed_url['pass']) ? ':' . $parsed_url['pass'] : ''; $pass = ($user || $pass) ? "$pass@" : ''; $path = isset($parsed_url['path']) ? $parsed_url['path'] : ''; $query = isset($parsed_url['query']) ? '?' . $parsed_url['query'] : ''; $fragment = isset($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : ''; // partially reproduced from https://stackoverflow.com/a/1243431/264628 /* replace '//' or '/./' or '/foo/../' with '/' */ $re = array('#(/\.?/)#', '#/(?!\.\.)[^/]+/\.\./#'); for ($n=1; $n>0; $path=preg_replace($re, '/', $path, -1, $n)) {} $ret = "$scheme$user$pass$host$port$path$query$fragment"; return $ret; } /** * Builds a HTTP Content-Disposition header string using `$dispositionType` * and `$filename`. * * If the filename contains any characters not in the ISO-8859-1 character * set, a fallback filename will be included for clients not supporting the * `filename*` parameter. * * @param string $dispositionType * @param string $filename * @return string */ public static function buildContentDispositionHeader($dispositionType, $filename) { $encoding = mb_detect_encoding($filename); $fallbackfilename = mb_convert_encoding($filename, "ISO-8859-1", $encoding); $fallbackfilename = str_replace("\"", "", $fallbackfilename); $encodedfilename = rawurlencode($filename); $contentDisposition = "Content-Disposition: $dispositionType; filename=\"$fallbackfilename\""; if ($fallbackfilename !== $filename) { $contentDisposition .= "; filename*=UTF-8''$encodedfilename"; } return $contentDisposition; } /** * Converts decimal numbers to roman numerals. * * As numbers larger than 3999 (and smaller than 1) cannot be represented in * the standard form of roman numerals, those are left in decimal form. * * See https://en.wikipedia.org/wiki/Roman_numerals#Standard_form * * @param int|string $num * * @throws Exception * @return string */ public static function dec2roman($num): string { static $ones = ["", "i", "ii", "iii", "iv", "v", "vi", "vii", "viii", "ix"]; static $tens = ["", "x", "xx", "xxx", "xl", "l", "lx", "lxx", "lxxx", "xc"]; static $hund = ["", "c", "cc", "ccc", "cd", "d", "dc", "dcc", "dccc", "cm"]; static $thou = ["", "m", "mm", "mmm"]; if (!is_numeric($num)) { throw new Exception("dec2roman() requires a numeric argument."); } if ($num >= 4000 || $num <= 0) { return (string) $num; } $num = strrev((string)$num); $ret = ""; switch (mb_strlen($num)) { /** @noinspection PhpMissingBreakStatementInspection */ case 4: $ret .= $thou[$num[3]]; /** @noinspection PhpMissingBreakStatementInspection */ case 3: $ret .= $hund[$num[2]]; /** @noinspection PhpMissingBreakStatementInspection */ case 2: $ret .= $tens[$num[1]]; /** @noinspection PhpMissingBreakStatementInspection */ case 1: $ret .= $ones[$num[0]]; default: break; } return $ret; } /** * Restrict a length to the given range. * * If min > max, the result is min. * * @param float $length * @param float $min * @param float $max * * @return float */ public static function clamp(float $length, float $min, float $max): float { return max($min, min($length, $max)); } /** * Determines whether $value is a percentage or not * * @param string|float|int $value * * @return bool */ public static function is_percent($value): bool { return is_string($value) && false !== mb_strpos($value, "%"); } /** * Parses a data URI scheme * http://en.wikipedia.org/wiki/Data_URI_scheme * * @param string $data_uri The data URI to parse * * @return array|bool The result with charset, mime type and decoded data */ public static function parse_data_uri($data_uri) { if (!preg_match('/^data:(?P<mime>[a-z0-9\/+-.]+)(;charset=(?P<charset>[a-z0-9-])+)?(?P<base64>;base64)?\,(?P<data>.*)?/is', $data_uri, $match)) { return false; } $match['data'] = rawurldecode($match['data']); $result = [ 'charset' => $match['charset'] ? $match['charset'] : 'US-ASCII', 'mime' => $match['mime'] ? $match['mime'] : 'text/plain', 'data' => $match['base64'] ? base64_decode($match['data']) : $match['data'], ]; return $result; } /** * Encodes a Uniform Resource Identifier (URI) by replacing non-alphanumeric * characters with a percent (%) sign followed by two hex digits, excepting * characters in the URI reserved character set. * * Assumes that the URI is a complete URI, so does not encode reserved * characters that have special meaning in the URI. * * Simulates the encodeURI function available in JavaScript * https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/encodeURI * * Source: http://stackoverflow.com/q/4929584/264628 * * @param string $uri The URI to encode * @return string The original URL with special characters encoded */ public static function encodeURI($uri) { $unescaped = [ '%2D'=>'-','%5F'=>'_','%2E'=>'.','%21'=>'!', '%7E'=>'~', '%2A'=>'*', '%27'=>"'", '%28'=>'(', '%29'=>')' ]; $reserved = [ '%3B'=>';','%2C'=>',','%2F'=>'/','%3F'=>'?','%3A'=>':', '%40'=>'@','%26'=>'&','%3D'=>'=','%2B'=>'+','%24'=>'$' ]; $score = [ '%23'=>'#' ]; return strtr(rawurlencode(rawurldecode($uri)), array_merge($reserved, $unescaped, $score)); } /** * Decoder for RLE8 compression in windows bitmaps * http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/bitmaps_6x0u.asp * * @param string $str Data to decode * @param int $width Image width * * @return string */ public static function rle8_decode($str, $width) { $lineWidth = $width + (3 - ($width - 1) % 4); $out = ''; $cnt = strlen($str); for ($i = 0; $i < $cnt; $i++) { $o = ord($str[$i]); switch ($o) { case 0: # ESCAPE $i++; switch (ord($str[$i])) { case 0: # NEW LINE $padCnt = $lineWidth - strlen($out) % $lineWidth; if ($padCnt < $lineWidth) { $out .= str_repeat(chr(0), $padCnt); # pad line } break; case 1: # END OF FILE $padCnt = $lineWidth - strlen($out) % $lineWidth; if ($padCnt < $lineWidth) { $out .= str_repeat(chr(0), $padCnt); # pad line } break 3; case 2: # DELTA $i += 2; break; default: # ABSOLUTE MODE $num = ord($str[$i]); for ($j = 0; $j < $num; $j++) { $out .= $str[++$i]; } if ($num % 2) { $i++; } } break; default: $out .= str_repeat($str[++$i], $o); } } return $out; } /** * Decoder for RLE4 compression in windows bitmaps * see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/bitmaps_6x0u.asp * * @param string $str Data to decode * @param int $width Image width * * @return string */ public static function rle4_decode($str, $width) { $w = floor($width / 2) + ($width % 2); $lineWidth = $w + (3 - (($width - 1) / 2) % 4); $pixels = []; $cnt = strlen($str); $c = 0; for ($i = 0; $i < $cnt; $i++) { $o = ord($str[$i]); switch ($o) { case 0: # ESCAPE $i++; switch (ord($str[$i])) { case 0: # NEW LINE while (count($pixels) % $lineWidth != 0) { $pixels[] = 0; } break; case 1: # END OF FILE while (count($pixels) % $lineWidth != 0) { $pixels[] = 0; } break 3; case 2: # DELTA $i += 2; break; default: # ABSOLUTE MODE $num = ord($str[$i]); for ($j = 0; $j < $num; $j++) { if ($j % 2 == 0) { $c = ord($str[++$i]); $pixels[] = ($c & 240) >> 4; } else { $pixels[] = $c & 15; } } if ($num % 2 == 0) { $i++; } } break; default: $c = ord($str[++$i]); for ($j = 0; $j < $o; $j++) { $pixels[] = ($j % 2 == 0 ? ($c & 240) >> 4 : $c & 15); } } } $out = ''; if (count($pixels) % 2) { $pixels[] = 0; } $cnt = count($pixels) / 2; for ($i = 0; $i < $cnt; $i++) { $out .= chr(16 * $pixels[2 * $i] + $pixels[2 * $i + 1]); } return $out; } /** * parse a full url or pathname and return an array(protocol, host, path, * file + query + fragment) * * @param string $url * @return array */ public static function explode_url($url) { $protocol = ""; $host = ""; $path = ""; $file = ""; $res = ""; $arr = parse_url($url); if ( isset($arr["scheme"]) ) { $arr["scheme"] = mb_strtolower($arr["scheme"]); } if (isset($arr["scheme"]) && $arr["scheme"] !== "file" && $arr["scheme"] !== "phar" && strlen($arr["scheme"]) > 1) { $protocol = $arr["scheme"] . "://"; if (isset($arr["user"])) { $host .= $arr["user"]; if (isset($arr["pass"])) { $host .= ":" . $arr["pass"]; } $host .= "@"; } if (isset($arr["host"])) { $host .= $arr["host"]; } if (isset($arr["port"])) { $host .= ":" . $arr["port"]; } if (isset($arr["path"]) && $arr["path"] !== "") { // Do we have a trailing slash? if ($arr["path"][mb_strlen($arr["path"]) - 1] === "/") { $path = $arr["path"]; $file = ""; } else { $path = rtrim(dirname($arr["path"]), '/\\') . "/"; $file = basename($arr["path"]); } } if (isset($arr["query"])) { $file .= "?" . $arr["query"]; } if (isset($arr["fragment"])) { $file .= "#" . $arr["fragment"]; } } else { $protocol = ""; $host = ""; // localhost, really $i = mb_stripos($url, "://"); if ($i !== false) { $protocol = mb_strtolower(mb_substr($url, 0, $i + 3)); $url = mb_substr($url, $i + 3); } else { $protocol = "file://"; } if ($protocol === "phar://") { $res = substr($url, stripos($url, ".phar")+5); $url = substr($url, 7, stripos($url, ".phar")-2); } $file = basename($url); $path = dirname($url) . "/"; } $ret = [$protocol, $host, $path, $file, "protocol" => $protocol, "host" => $host, "path" => $path, "file" => $file, "resource" => $res]; return $ret; } /** * Print debug messages * * @param string $type The type of debug messages to print * @param string $msg The message to show */ public static function dompdf_debug($type, $msg) { global $_DOMPDF_DEBUG_TYPES, $_dompdf_show_warnings, $_dompdf_debug; if (isset($_DOMPDF_DEBUG_TYPES[$type]) && ($_dompdf_show_warnings || $_dompdf_debug)) { $arr = debug_backtrace(); echo basename($arr[0]["file"]) . " (" . $arr[0]["line"] . "): " . $arr[1]["function"] . ": "; Helpers::pre_r($msg); } } /** * Stores warnings in an array for display later * This function allows warnings generated by the DomDocument parser * and CSS loader ({@link Stylesheet}) to be captured and displayed * later. Without this function, errors are displayed immediately and * PDF streaming is impossible. * @see http://www.php.net/manual/en/function.set-error_handler.php * * @param int $errno * @param string $errstr * @param string $errfile * @param string $errline * * @throws Exception */ public static function record_warnings($errno, $errstr, $errfile, $errline) { // Not a warning or notice if (!($errno & (E_WARNING | E_NOTICE | E_USER_NOTICE | E_USER_WARNING | E_STRICT | E_DEPRECATED | E_USER_DEPRECATED))) { throw new Exception($errstr . " $errno"); } global $_dompdf_warnings; global $_dompdf_show_warnings; if ($_dompdf_show_warnings) { echo $errstr . "\n"; } $_dompdf_warnings[] = $errstr; } /** * @param $c * @return bool|string */ public static function unichr($c) { if ($c <= 0x7F) { return chr($c); } elseif ($c <= 0x7FF) { return chr(0xC0 | $c >> 6) . chr(0x80 | $c & 0x3F); } elseif ($c <= 0xFFFF) { return chr(0xE0 | $c >> 12) . chr(0x80 | $c >> 6 & 0x3F) . chr(0x80 | $c & 0x3F); } elseif ($c <= 0x10FFFF) { return chr(0xF0 | $c >> 18) . chr(0x80 | $c >> 12 & 0x3F) . chr(0x80 | $c >> 6 & 0x3F) . chr(0x80 | $c & 0x3F); } return false; } /** * Converts a CMYK color to RGB * * @param float|float[] $c * @param float $m * @param float $y * @param float $k * * @return float[] */ public static function cmyk_to_rgb($c, $m = null, $y = null, $k = null) { if (is_array($c)) { [$c, $m, $y, $k] = $c; } $c *= 255; $m *= 255; $y *= 255; $k *= 255; $r = (1 - round(2.55 * ($c + $k))); $g = (1 - round(2.55 * ($m + $k))); $b = (1 - round(2.55 * ($y + $k))); if ($r < 0) { $r = 0; } if ($g < 0) { $g = 0; } if ($b < 0) { $b = 0; } return [ $r, $g, $b, "r" => $r, "g" => $g, "b" => $b ]; } /** * getimagesize doesn't give a good size for 32bit BMP image v5 * * @param string $filename * @param resource $context * @return array An array of three elements: width and height as * `float|int`, and image type as `string|null`. */ public static function dompdf_getimagesize($filename, $context = null) { static $cache = []; if (isset($cache[$filename])) { return $cache[$filename]; } [$width, $height, $type] = getimagesize($filename); // Custom types $types = [ IMAGETYPE_JPEG => "jpeg", IMAGETYPE_GIF => "gif", IMAGETYPE_BMP => "bmp", IMAGETYPE_PNG => "png", IMAGETYPE_WEBP => "webp", ]; $type = $types[$type] ?? null; if ($width == null || $height == null) { [$data] = Helpers::getFileContent($filename, $context); if ($data !== null) { if (substr($data, 0, 2) === "BM") { $meta = unpack("vtype/Vfilesize/Vreserved/Voffset/Vheadersize/Vwidth/Vheight", $data); $width = (int) $meta["width"]; $height = (int) $meta["height"]; $type = "bmp"; } elseif (strpos($data, "<svg") !== false) { $doc = new \Svg\Document(); $doc->loadFile($filename); [$width, $height] = $doc->getDimensions(); $width = (float) $width; $height = (float) $height; $type = "svg"; } } } return $cache[$filename] = [$width ?? 0, $height ?? 0, $type]; } /** * Credit goes to mgutt * http://www.programmierer-forum.de/function-imagecreatefrombmp-welche-variante-laeuft-t143137.htm * Modified by Fabien Menager to support RGB555 BMP format */ public static function imagecreatefrombmp($filename, $context = null) { if (!function_exists("imagecreatetruecolor")) { trigger_error("The PHP GD extension is required, but is not installed.", E_ERROR); return false; } // version 1.00 if (!($fh = fopen($filename, 'rb'))) { trigger_error('imagecreatefrombmp: Can not open ' . $filename, E_USER_WARNING); return false; } $bytes_read = 0; // read file header $meta = unpack('vtype/Vfilesize/Vreserved/Voffset', fread($fh, 14)); // check for bitmap if ($meta['type'] != 19778) { trigger_error('imagecreatefrombmp: ' . $filename . ' is not a bitmap!', E_USER_WARNING); return false; } // read image header $meta += unpack('Vheadersize/Vwidth/Vheight/vplanes/vbits/Vcompression/Vimagesize/Vxres/Vyres/Vcolors/Vimportant', fread($fh, 40)); $bytes_read += 40; // read additional bitfield header if ($meta['compression'] == 3) { $meta += unpack('VrMask/VgMask/VbMask', fread($fh, 12)); $bytes_read += 12; } // set bytes and padding $meta['bytes'] = $meta['bits'] / 8; $meta['decal'] = 4 - (4 * (($meta['width'] * $meta['bytes'] / 4) - floor($meta['width'] * $meta['bytes'] / 4))); if ($meta['decal'] == 4) { $meta['decal'] = 0; } // obtain imagesize if ($meta['imagesize'] < 1) { $meta['imagesize'] = $meta['filesize'] - $meta['offset']; // in rare cases filesize is equal to offset so we need to read physical size if ($meta['imagesize'] < 1) { $meta['imagesize'] = @filesize($filename) - $meta['offset']; if ($meta['imagesize'] < 1) { trigger_error('imagecreatefrombmp: Can not obtain filesize of ' . $filename . '!', E_USER_WARNING); return false; } } } // calculate colors $meta['colors'] = !$meta['colors'] ? pow(2, $meta['bits']) : $meta['colors']; // read color palette $palette = []; if ($meta['bits'] < 16) { $palette = unpack('l' . $meta['colors'], fread($fh, $meta['colors'] * 4)); // in rare cases the color value is signed if ($palette[1] < 0) { foreach ($palette as $i => $color) { $palette[$i] = $color + 16777216; } } } // ignore extra bitmap headers if ($meta['headersize'] > $bytes_read) { fread($fh, $meta['headersize'] - $bytes_read); } // create gd image $im = imagecreatetruecolor($meta['width'], $meta['height']); $data = fread($fh, $meta['imagesize']); // uncompress data switch ($meta['compression']) { case 1: $data = Helpers::rle8_decode($data, $meta['width']); break; case 2: $data = Helpers::rle4_decode($data, $meta['width']); break; } $p = 0; $vide = chr(0); $y = $meta['height'] - 1; $error = 'imagecreatefrombmp: ' . $filename . ' has not enough data!'; // loop through the image data beginning with the lower left corner while ($y >= 0) { $x = 0; while ($x < $meta['width']) { switch ($meta['bits']) { case 32: case 24: if (!($part = substr($data, $p, 3 /*$meta['bytes']*/))) { trigger_error($error, E_USER_WARNING); return $im; } $color = unpack('V', $part . $vide); break; case 16: if (!($part = substr($data, $p, 2 /*$meta['bytes']*/))) { trigger_error($error, E_USER_WARNING); return $im; } $color = unpack('v', $part); if (empty($meta['rMask']) || $meta['rMask'] != 0xf800) { $color[1] = (($color[1] & 0x7c00) >> 7) * 65536 + (($color[1] & 0x03e0) >> 2) * 256 + (($color[1] & 0x001f) << 3); // 555 } else { $color[1] = (($color[1] & 0xf800) >> 8) * 65536 + (($color[1] & 0x07e0) >> 3) * 256 + (($color[1] & 0x001f) << 3); // 565 } break; case 8: $color = unpack('n', $vide . substr($data, $p, 1)); $color[1] = $palette[$color[1] + 1]; break; case 4: $color = unpack('n', $vide . substr($data, floor($p), 1)); $color[1] = ($p * 2) % 2 == 0 ? $color[1] >> 4 : $color[1] & 0x0F; $color[1] = $palette[$color[1] + 1]; break; case 1: $color = unpack('n', $vide . substr($data, floor($p), 1)); switch (($p * 8) % 8) { case 0: $color[1] = $color[1] >> 7; break; case 1: $color[1] = ($color[1] & 0x40) >> 6; break; case 2: $color[1] = ($color[1] & 0x20) >> 5; break; case 3: $color[1] = ($color[1] & 0x10) >> 4; break; case 4: $color[1] = ($color[1] & 0x8) >> 3; break; case 5: $color[1] = ($color[1] & 0x4) >> 2; break; case 6: $color[1] = ($color[1] & 0x2) >> 1; break; case 7: $color[1] = ($color[1] & 0x1); break; } $color[1] = $palette[$color[1] + 1]; break; default: trigger_error('imagecreatefrombmp: ' . $filename . ' has ' . $meta['bits'] . ' bits and this is not supported!', E_USER_WARNING); return false; } imagesetpixel($im, $x, $y, $color[1]); $x++; $p += $meta['bytes']; } $y--; $p += $meta['decal']; } fclose($fh); return $im; } /** * Gets the content of the file at the specified path using one of * the following methods, in preferential order: * - file_get_contents: if allow_url_fopen is true or the file is local * - curl: if allow_url_fopen is false and curl is available * * @param string $uri * @param resource $context * @param int $offset * @param int $maxlen * @return string[] */ public static function getFileContent($uri, $context = null, $offset = 0, $maxlen = null) { $content = null; $headers = null; [$protocol] = Helpers::explode_url($uri); $is_local_path = in_array(strtolower($protocol), ["", "file://", "phar://"], true); $can_use_curl = in_array(strtolower($protocol), ["http://", "https://"], true); set_error_handler([self::class, 'record_warnings']); try { if ($is_local_path || ini_get('allow_url_fopen') || !$can_use_curl) { if ($is_local_path === false) { $uri = Helpers::encodeURI($uri); } if (isset($maxlen)) { $result = file_get_contents($uri, false, $context, $offset, $maxlen); } else { $result = file_get_contents($uri, false, $context, $offset); } if ($result !== false) { $content = $result; } if (isset($http_response_header)) { $headers = $http_response_header; } } elseif ($can_use_curl && function_exists('curl_exec')) { $curl = curl_init($uri); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_HEADER, true); if ($offset > 0) { curl_setopt($curl, CURLOPT_RESUME_FROM, $offset); } if ($maxlen > 0) { curl_setopt($curl, CURLOPT_BUFFERSIZE, 128); curl_setopt($curl, CURLOPT_NOPROGRESS, false); curl_setopt($curl, CURLOPT_PROGRESSFUNCTION, function ($res, $download_size_total, $download_size, $upload_size_total, $upload_size) use ($maxlen) { return ($download_size > $maxlen) ? 1 : 0; }); } $context_options = []; if (!is_null($context)) { $context_options = stream_context_get_options($context); } foreach ($context_options as $stream => $options) { foreach ($options as $option => $value) { $key = strtolower($stream) . ":" . strtolower($option); switch ($key) { case "curl:curl_verify_ssl_host": curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, !$value ? 0 : 2); break; case "curl:max_redirects": curl_setopt($curl, CURLOPT_MAXREDIRS, $value); break; case "http:follow_location": curl_setopt($curl, CURLOPT_FOLLOWLOCATION, $value); break; case "http:header": if (is_string($value)) { curl_setopt($curl, CURLOPT_HTTPHEADER, [$value]); } else { curl_setopt($curl, CURLOPT_HTTPHEADER, $value); } break; case "http:timeout": curl_setopt($curl, CURLOPT_TIMEOUT, $value); break; case "http:user_agent": curl_setopt($curl, CURLOPT_USERAGENT, $value); break; case "curl:curl_verify_ssl_peer": case "ssl:verify_peer": curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, $value); break; } } } $data = curl_exec($curl); if ($data !== false && !curl_errno($curl)) { switch ($http_code = curl_getinfo($curl, CURLINFO_HTTP_CODE)) { case 200: $raw_headers = substr($data, 0, curl_getinfo($curl, CURLINFO_HEADER_SIZE)); $headers = preg_split("/[\n\r]+/", trim($raw_headers)); $content = substr($data, curl_getinfo($curl, CURLINFO_HEADER_SIZE)); break; } } curl_close($curl); } } finally { restore_error_handler(); } return [$content, $headers]; } /** * @param string $str * @return string */ public static function mb_ucwords(string $str): string { $max_len = mb_strlen($str); if ($max_len === 1) { return mb_strtoupper($str); } $str = mb_strtoupper(mb_substr($str, 0, 1)) . mb_substr($str, 1); foreach ([' ', '.', ',', '!', '?', '-', '+'] as $s) { $pos = 0; while (($pos = mb_strpos($str, $s, $pos)) !== false) { $pos++; // Nothing to do if the separator is the last char of the string if ($pos !== false && $pos < $max_len) { // If the char we want to upper is the last char there is nothing to append behind if ($pos + 1 < $max_len) { $str = mb_substr($str, 0, $pos) . mb_strtoupper(mb_substr($str, $pos, 1)) . mb_substr($str, $pos + 1); } else { $str = mb_substr($str, 0, $pos) . mb_strtoupper(mb_substr($str, $pos, 1)); } } } } return $str; } /** * Check whether two lengths should be considered equal, accounting for * inaccuracies in float computation. * * The implementation relies on the fact that we are neither dealing with * very large, nor with very small numbers in layout. Adapted from * https://floating-point-gui.de/errors/comparison/. * * @param float $a * @param float $b * * @return bool */ public static function lengthEqual(float $a, float $b): bool { // The epsilon results in a precision of at least: // * 7 decimal digits at around 1 // * 4 decimal digits at around 1000 (around the size of common paper formats) // * 2 decimal digits at around 100,000 (100,000pt ~ 35.28m) static $epsilon = 1e-8; static $almostZero = 1e-12; $diff = abs($a - $b); if ($a === $b || $diff < $almostZero) { return true; } return $diff < $epsilon * max(abs($a), abs($b)); } /** * Check `$a < $b`, accounting for inaccuracies in float computation. */ public static function lengthLess(float $a, float $b): bool { return $a < $b && !self::lengthEqual($a, $b); } /** * Check `$a <= $b`, accounting for inaccuracies in float computation. */ public static function lengthLessOrEqual(float $a, float $b): bool { return $a <= $b || self::lengthEqual($a, $b); } /** * Check `$a > $b`, accounting for inaccuracies in float computation. */ public static function lengthGreater(float $a, float $b): bool { return $a > $b && !self::lengthEqual($a, $b); } /** * Check `$a >= $b`, accounting for inaccuracies in float computation. */ public static function lengthGreaterOrEqual(float $a, float $b): bool { return $a >= $b || self::lengthEqual($a, $b); } }