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 = $code;
52: }
53: }
54:
55: if (PHP_VERSION_ID >= 50401) {
56: header_register_callback($this->removeDuplicateCookies);
57: }
58: }
59:
60:
61: 62: 63: 64: 65: 66: 67:
68: public function setCode($code)
69: {
70: $code = (int) $code;
71: if ($code < 100 || $code > 599) {
72: throw new Nette\InvalidArgumentException("Bad HTTP response '$code'.");
73: }
74: self::checkHeaders();
75: $this->code = $code;
76: $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
77: header($protocol . ' ' . $code, TRUE, $code);
78: return $this;
79: }
80:
81:
82: 83: 84: 85:
86: public function getCode()
87: {
88: return $this->code;
89: }
90:
91:
92: 93: 94: 95: 96: 97: 98:
99: public function ($name, $value)
100: {
101: self::checkHeaders();
102: if ($value === NULL) {
103: header_remove($name);
104: } elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
105:
106: } else {
107: header($name . ': ' . $value, TRUE, $this->code);
108: }
109: return $this;
110: }
111:
112:
113: 114: 115: 116: 117: 118: 119:
120: public function ($name, $value)
121: {
122: self::checkHeaders();
123: header($name . ': ' . $value, FALSE, $this->code);
124: return $this;
125: }
126:
127:
128: 129: 130: 131: 132: 133: 134:
135: public function setContentType($type, $charset = NULL)
136: {
137: $this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
138: return $this;
139: }
140:
141:
142: 143: 144: 145: 146: 147: 148:
149: public function redirect($url, $code = self::S302_FOUND)
150: {
151: $this->setCode($code);
152: $this->setHeader('Location', $url);
153: if (preg_match('#^https?:|^\s*+[a-z0-9+.-]*+[^:]#i', $url)) {
154: $escapedUrl = htmlSpecialChars($url, ENT_IGNORE | ENT_QUOTES);
155: echo "<h1>Redirect</h1>\n\n<p><a href=\"$escapedUrl\">Please click here to continue</a>.</p>";
156: }
157: }
158:
159:
160: 161: 162: 163: 164: 165:
166: public function setExpiration($time)
167: {
168: if (!$time) {
169: $this->setHeader('Cache-Control', 's-maxage=0, max-age=0, must-revalidate');
170: $this->setHeader('Expires', 'Mon, 23 Jan 1978 10:00:00 GMT');
171: return $this;
172: }
173:
174: $time = DateTime::from($time);
175: $this->setHeader('Cache-Control', 'max-age=' . ($time->format('U') - time()));
176: $this->setHeader('Expires', self::date($time));
177: return $this;
178: }
179:
180:
181: 182: 183: 184:
185: public function isSent()
186: {
187: return headers_sent();
188: }
189:
190:
191: 192: 193: 194: 195: 196:
197: public function ($header, $default = NULL)
198: {
199: $header .= ':';
200: $len = strlen($header);
201: foreach (headers_list() as $item) {
202: if (strncasecmp($item, $header, $len) === 0) {
203: return ltrim(substr($item, $len));
204: }
205: }
206: return $default;
207: }
208:
209:
210: 211: 212: 213:
214: public function ()
215: {
216: $headers = array();
217: foreach (headers_list() as $header) {
218: $a = strpos($header, ':');
219: $headers[substr($header, 0, $a)] = (string) substr($header, $a + 2);
220: }
221: return $headers;
222: }
223:
224:
225: 226: 227: 228: 229:
230: public static function date($time = NULL)
231: {
232: $time = DateTime::from($time);
233: $time->setTimezone(new \DateTimeZone('GMT'));
234: return $time->format('D, d M Y H:i:s \G\M\T');
235: }
236:
237:
238: 239: 240:
241: public function __destruct()
242: {
243: if (self::$fixIE && isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE ') !== FALSE
244: && in_array($this->code, array(400, 403, 404, 405, 406, 408, 409, 410, 500, 501, 505), TRUE)
245: && preg_match('#^text/html(?:;|$)#', $this->getHeader('Content-Type', 'text/html'))
246: ) {
247: echo Nette\Utils\Random::generate(2e3, " \t\r\n");
248: self::$fixIE = FALSE;
249: }
250: }
251:
252:
253: 254: 255: 256: 257: 258: 259: 260: 261: 262: 263: 264:
265: public function setCookie($name, $value, $time, $path = NULL, $domain = NULL, $secure = NULL, $httpOnly = NULL)
266: {
267: self::checkHeaders();
268: setcookie(
269: $name,
270: $value,
271: $time ? DateTime::from($time)->format('U') : 0,
272: $path === NULL ? $this->cookiePath : (string) $path,
273: $domain === NULL ? $this->cookieDomain : (string) $domain,
274: $secure === NULL ? $this->cookieSecure : (bool) $secure,
275: $httpOnly === NULL ? $this->cookieHttpOnly : (bool) $httpOnly
276: );
277: $this->removeDuplicateCookies();
278: return $this;
279: }
280:
281:
282: 283: 284: 285: 286: 287: 288: 289: 290:
291: public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
292: {
293: $this->setCookie($name, FALSE, 0, $path, $domain, $secure);
294: }
295:
296:
297: 298: 299: 300: 301:
302: public function removeDuplicateCookies()
303: {
304: if (headers_sent($file, $line) || ini_get('suhosin.cookie.encrypt')) {
305: return;
306: }
307:
308: $flatten = array();
309: foreach (headers_list() as $header) {
310: if (preg_match('#^Set-Cookie: .+?=#', $header, $m)) {
311: $flatten[$m[0]] = $header;
312: header_remove('Set-Cookie');
313: }
314: }
315: foreach (array_values($flatten) as $key => $header) {
316: header($header, $key === 0);
317: }
318: }
319:
320:
321: private function ()
322: {
323: if (headers_sent($file, $line)) {
324: throw new Nette\InvalidStateException('Cannot send header after HTTP headers have been sent' . ($file ? " (output started at $file:$line)." : '.'));
325:
326: } elseif ($this->warnOnBuffer && ob_get_length() && !array_filter(ob_get_status(TRUE), function($i) { return !$i['chunk_size']; })) {
327: 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);
328: }
329: }
330:
331: }
332: