1: <?php
2:
3: 4: 5: 6:
7:
8: namespace Nette\Http;
9:
10: use Nette,
11: Nette\Utils\DateTime;
12:
13:
14: 15: 16: 17: 18: 19: 20: 21: 22:
23: class Response extends Nette\Object implements IResponse
24: {
25:
26: private static $fixIE = TRUE;
27:
28:
29: public $cookieDomain = '';
30:
31:
32: public $cookiePath = '/';
33:
34:
35: public $cookieSecure = FALSE;
36:
37:
38: public $cookieHttpOnly = TRUE;
39:
40:
41: public $warnOnBuffer = TRUE;
42:
43:
44: private $code = self::S200_OK;
45:
46:
47: public function __construct()
48: {
49: if (PHP_VERSION_ID >= 50400) {
50: if (is_int($code = http_response_code())) {
51: $this->code = $code;
52: }
53: }
54:
55: if (PHP_VERSION_ID >= 50401) {
56: $rm = new \ReflectionMethod('Nette\Http\Helpers::removeDuplicateCookies');
57: header_register_callback($rm->getClosure());
58: }
59: }
60:
61:
62: 63: 64: 65: 66: 67: 68:
69: public function setCode($code)
70: {
71: $code = (int) $code;
72: if ($code < 100 || $code > 599) {
73: throw new Nette\InvalidArgumentException("Bad HTTP response '$code'.");
74: }
75: self::checkHeaders();
76: $this->code = $code;
77: $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
78: header($protocol . ' ' . $code, TRUE, $code);
79: return $this;
80: }
81:
82:
83: 84: 85: 86:
87: public function getCode()
88: {
89: return $this->code;
90: }
91:
92:
93: 94: 95: 96: 97: 98: 99:
100: public function ($name, $value)
101: {
102: self::checkHeaders();
103: if ($value === NULL) {
104: header_remove($name);
105: } elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
106:
107: } else {
108: header($name . ': ' . $value, TRUE, $this->code);
109: }
110: return $this;
111: }
112:
113:
114: 115: 116: 117: 118: 119: 120:
121: public function ($name, $value)
122: {
123: self::checkHeaders();
124: header($name . ': ' . $value, FALSE, $this->code);
125: return $this;
126: }
127:
128:
129: 130: 131: 132: 133: 134: 135:
136: public function setContentType($type, $charset = NULL)
137: {
138: $this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
139: return $this;
140: }
141:
142:
143: 144: 145: 146: 147: 148: 149:
150: public function redirect($url, $code = self::S302_FOUND)
151: {
152: $this->setCode($code);
153: $this->setHeader('Location', $url);
154: if (preg_match('#^https?:|^\s*+[a-z0-9+.-]*+[^:]#i', $url)) {
155: $escapedUrl = htmlSpecialChars($url, ENT_IGNORE | ENT_QUOTES, 'UTF-8');
156: echo "<h1>Redirect</h1>\n\n<p><a href=\"$escapedUrl\">Please click here to continue</a>.</p>";
157: }
158: }
159:
160:
161: 162: 163: 164: 165: 166:
167: public function setExpiration($time)
168: {
169: if (!$time) {
170: $this->setHeader('Cache-Control', 's-maxage=0, max-age=0, must-revalidate');
171: $this->setHeader('Expires', 'Mon, 23 Jan 1978 10:00:00 GMT');
172: return $this;
173: }
174:
175: $time = DateTime::from($time);
176: $this->setHeader('Cache-Control', 'max-age=' . ($time->format('U') - time()));
177: $this->setHeader('Expires', Helpers::formatDate($time));
178: return $this;
179: }
180:
181:
182: 183: 184: 185:
186: public function isSent()
187: {
188: return headers_sent();
189: }
190:
191:
192: 193: 194: 195: 196: 197:
198: public function ($header, $default = NULL)
199: {
200: $header .= ':';
201: $len = strlen($header);
202: foreach (headers_list() as $item) {
203: if (strncasecmp($item, $header, $len) === 0) {
204: return ltrim(substr($item, $len));
205: }
206: }
207: return $default;
208: }
209:
210:
211: 212: 213: 214:
215: public function ()
216: {
217: $headers = array();
218: foreach (headers_list() as $header) {
219: $a = strpos($header, ':');
220: $headers[substr($header, 0, $a)] = (string) substr($header, $a + 2);
221: }
222: return $headers;
223: }
224:
225:
226: 227: 228:
229: public static function date($time = NULL)
230: {
231: return Helpers::formatDate($time);
232: }
233:
234:
235: 236: 237:
238: public function __destruct()
239: {
240: if (self::$fixIE && isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE ') !== FALSE
241: && in_array($this->code, array(400, 403, 404, 405, 406, 408, 409, 410, 500, 501, 505), TRUE)
242: && preg_match('#^text/html(?:;|$)#', $this->getHeader('Content-Type', 'text/html'))
243: ) {
244: echo Nette\Utils\Random::generate(2e3, " \t\r\n");
245: self::$fixIE = FALSE;
246: }
247: }
248:
249:
250: 251: 252: 253: 254: 255: 256: 257: 258: 259: 260: 261:
262: public function setCookie($name, $value, $time, $path = NULL, $domain = NULL, $secure = NULL, $httpOnly = NULL)
263: {
264: self::checkHeaders();
265: setcookie(
266: $name,
267: $value,
268: $time ? DateTime::from($time)->format('U') : 0,
269: $path === NULL ? $this->cookiePath : (string) $path,
270: $domain === NULL ? $this->cookieDomain : (string) $domain,
271: $secure === NULL ? $this->cookieSecure : (bool) $secure,
272: $httpOnly === NULL ? $this->cookieHttpOnly : (bool) $httpOnly
273: );
274: Helpers::removeDuplicateCookies();
275: return $this;
276: }
277:
278:
279: 280: 281: 282: 283: 284: 285: 286: 287:
288: public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
289: {
290: $this->setCookie($name, FALSE, 0, $path, $domain, $secure);
291: }
292:
293:
294:
295: public function removeDuplicateCookies()
296: {
297: trigger_error('Use Nette\Http\Helpers::removeDuplicateCookies()', E_USER_WARNING);
298: }
299:
300:
301: private function ()
302: {
303: if (headers_sent($file, $line)) {
304: throw new Nette\InvalidStateException('Cannot send header after HTTP headers have been sent' . ($file ? " (output started at $file:$line)." : '.'));
305:
306: } elseif ($this->warnOnBuffer && ob_get_length() && !array_filter(ob_get_status(TRUE), function($i) { return !$i['chunk_size']; })) {
307: trigger_error('Possible problem: you are sending a HTTP header while already having some data in output buffer. Try Tracy\OutputDebugger or start session earlier.', E_USER_NOTICE);
308: }
309: }
310:
311: }
312: