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