1: <?php
2:
3: 4: 5: 6:
7:
8: namespace Nette\Http;
9:
10: use Nette;
11:
12:
13: 14: 15: 16: 17: 18: 19: 20: 21:
22: class Response extends Nette\Object implements IResponse
23: {
24:
25: private static $fixIE = TRUE;
26:
27:
28: public $cookieDomain = '';
29:
30:
31: public $cookiePath = '/';
32:
33:
34: public $cookieSecure = FALSE;
35:
36:
37: public $cookieHttpOnly = TRUE;
38:
39:
40: private $code = self::S200_OK;
41:
42:
43: 44: 45: 46: 47: 48: 49:
50: public function setCode($code)
51: {
52: $code = (int) $code;
53:
54: if ($code < 100 || $code > 599) {
55: throw new Nette\InvalidArgumentException("Bad HTTP response '$code'.");
56:
57: } elseif (headers_sent($file, $line)) {
58: throw new Nette\InvalidStateException("Cannot set HTTP code after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
59:
60: } else {
61: $this->code = $code;
62: $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
63: header($protocol . ' ' . $code, TRUE, $code);
64: }
65: return $this;
66: }
67:
68:
69: 70: 71: 72:
73: public function getCode()
74: {
75: return $this->code;
76: }
77:
78:
79: 80: 81: 82: 83: 84: 85:
86: public function ($name, $value)
87: {
88: if (headers_sent($file, $line)) {
89: throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
90: }
91:
92: if ($value === NULL && function_exists('header_remove')) {
93: header_remove($name);
94: } elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
95:
96: } else {
97: header($name . ': ' . $value, TRUE, $this->code);
98: }
99: return $this;
100: }
101:
102:
103: 104: 105: 106: 107: 108: 109:
110: public function ($name, $value)
111: {
112: if (headers_sent($file, $line)) {
113: throw new Nette\InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
114: }
115:
116: header($name . ': ' . $value, FALSE, $this->code);
117: return $this;
118: }
119:
120:
121: 122: 123: 124: 125: 126: 127:
128: public function setContentType($type, $charset = NULL)
129: {
130: $this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
131: return $this;
132: }
133:
134:
135: 136: 137: 138: 139: 140: 141:
142: public function redirect($url, $code = self::S302_FOUND)
143: {
144: if (isset($_SERVER['SERVER_SOFTWARE']) && preg_match('#^Microsoft-IIS/[1-5]#', $_SERVER['SERVER_SOFTWARE'])
145: && $this->getHeader('Set-Cookie') !== NULL
146: ) {
147: $this->setHeader('Refresh', "0;url=$url");
148: return;
149: }
150:
151: $this->setCode($code);
152: $this->setHeader('Location', $url);
153: echo "<h1>Redirect</h1>\n\n<p><a href=\"" . htmlSpecialChars($url) . "\">Please click here to continue</a>.</p>";
154: }
155:
156:
157: 158: 159: 160: 161: 162:
163: public function setExpiration($time)
164: {
165: if (!$time) {
166: $this->setHeader('Cache-Control', 's-maxage=0, max-age=0, must-revalidate');
167: $this->setHeader('Expires', 'Mon, 23 Jan 1978 10:00:00 GMT');
168: return $this;
169: }
170:
171: $time = Nette\DateTime::from($time);
172: $this->setHeader('Cache-Control', 'max-age=' . ($time->format('U') - time()));
173: $this->setHeader('Expires', self::date($time));
174: return $this;
175: }
176:
177:
178: 179: 180: 181:
182: public function isSent()
183: {
184: return headers_sent();
185: }
186:
187:
188: 189: 190: 191: 192: 193:
194: public function ($header, $default = NULL)
195: {
196: $header .= ':';
197: $len = strlen($header);
198: foreach (headers_list() as $item) {
199: if (strncasecmp($item, $header, $len) === 0) {
200: return ltrim(substr($item, $len));
201: }
202: }
203: return $default;
204: }
205:
206:
207: 208: 209: 210:
211: public function ()
212: {
213: $headers = array();
214: foreach (headers_list() as $header) {
215: $a = strpos($header, ':');
216: $headers[substr($header, 0, $a)] = (string) substr($header, $a + 2);
217: }
218: return $headers;
219: }
220:
221:
222: 223: 224: 225: 226:
227: public static function date($time = NULL)
228: {
229: $time = Nette\DateTime::from($time);
230: $time->setTimezone(new \DateTimeZone('GMT'));
231: return $time->format('D, d M Y H:i:s \G\M\T');
232: }
233:
234:
235: 236: 237:
238: public function __destruct()
239: {
240: if (self::$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: && $this->getHeader('Content-Type', 'text/html') === 'text/html'
243: ) {
244: echo Nette\Utils\Strings::random(2e3, " \t\r\n");
245: self::$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, $httpOnly = NULL)
263: {
264: if (headers_sent($file, $line)) {
265: throw new Nette\InvalidStateException("Cannot set cookie after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
266: }
267:
268: setcookie(
269: $name,
270: $value,
271: $time ? Nette\DateTime::from($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:
278: $this->removeDuplicateCookies();
279: return $this;
280: }
281:
282:
283: 284: 285: 286: 287:
288: public function removeDuplicateCookies()
289: {
290: if (headers_sent($file, $line) || ini_get('suhosin.cookie.encrypt')) {
291: return;
292: }
293:
294: $flatten = array();
295: foreach (headers_list() as $header) {
296: if (preg_match('#^Set-Cookie: .+?=#', $header, $m)) {
297: $flatten[$m[0]] = $header;
298: if (PHP_VERSION_ID < 50300) {
299: header('Set-Cookie:');
300: } else {
301: header_remove('Set-Cookie');
302: }
303: }
304: }
305: foreach (array_values($flatten) as $key => $header) {
306: header($header, $key === 0);
307: }
308: }
309:
310:
311: 312: 313: 314: 315: 316: 317: 318: 319:
320: public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
321: {
322: $this->setCookie($name, FALSE, 0, $path, $domain, $secure);
323: }
324:
325: }
326: