1: <?php
2:
3: 4: 5: 6: 7: 8: 9: 10: 11:
12:
13:
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25: final class NHttpResponse extends NObject implements IHttpResponse
26: {
27:
28: private static $fixIE = TRUE;
29:
30:
31: public $cookieDomain = '';
32:
33:
34: public $cookiePath = '/';
35:
36:
37: public $cookieSecure = FALSE;
38:
39:
40: public $cookieHttpOnly = TRUE;
41:
42:
43: private $code = self::S200_OK;
44:
45:
46: 47: 48: 49: 50: 51: 52:
53: public function setCode($code)
54: {
55: $code = (int) $code;
56:
57: if ($code < 100 || $code > 599) {
58: throw new InvalidArgumentException("Bad HTTP response '$code'.");
59:
60: } elseif (headers_sent($file, $line)) {
61: throw new InvalidStateException("Cannot set HTTP code after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
62:
63: } else {
64: $this->code = $code;
65: $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
66: header($protocol . ' ' . $code, TRUE, $code);
67: }
68: return $this;
69: }
70:
71:
72: 73: 74: 75:
76: public function getCode()
77: {
78: return $this->code;
79: }
80:
81:
82: 83: 84: 85: 86: 87: 88:
89: public function ($name, $value)
90: {
91: if (headers_sent($file, $line)) {
92: throw new InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
93: }
94:
95: if ($value === NULL && function_exists('header_remove')) {
96: header_remove($name);
97: } elseif (strcasecmp($name, 'Content-Length') === 0 && ini_get('zlib.output_compression')) {
98:
99: } else {
100: header($name . ': ' . $value, TRUE, $this->code);
101: }
102: return $this;
103: }
104:
105:
106: 107: 108: 109: 110: 111: 112:
113: public function ($name, $value)
114: {
115: if (headers_sent($file, $line)) {
116: throw new InvalidStateException("Cannot send header after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
117: }
118:
119: header($name . ': ' . $value, FALSE, $this->code);
120: return $this;
121: }
122:
123:
124: 125: 126: 127: 128: 129: 130:
131: public function setContentType($type, $charset = NULL)
132: {
133: $this->setHeader('Content-Type', $type . ($charset ? '; charset=' . $charset : ''));
134: return $this;
135: }
136:
137:
138: 139: 140: 141: 142: 143: 144:
145: public function redirect($url, $code = self::S302_FOUND)
146: {
147: if (isset($_SERVER['SERVER_SOFTWARE']) && preg_match('#^Microsoft-IIS/[1-5]#', $_SERVER['SERVER_SOFTWARE'])
148: && $this->getHeader('Set-Cookie') !== NULL
149: ) {
150: $this->setHeader('Refresh', "0;url=$url");
151: return;
152: }
153:
154: $this->setCode($code);
155: $this->setHeader('Location', $url);
156: echo "<h1>Redirect</h1>\n\n<p><a href=\"" . htmlSpecialChars($url) . "\">Please click here to continue</a>.</p>";
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: $time = NDateTime53::from($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: $time = NDateTime53::from($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: && $this->getHeader('Content-Type', 'text/html') === 'text/html'
246: ) {
247: echo NStrings::random(2e3, " \t\r\n");
248: self::$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, $httpOnly = NULL)
266: {
267: if (headers_sent($file, $line)) {
268: throw new InvalidStateException("Cannot set cookie after HTTP headers have been sent" . ($file ? " (output started at $file:$line)." : "."));
269: }
270:
271: setcookie(
272: $name,
273: $value,
274: $time ? NDateTime53::from($time)->format('U') : 0,
275: $path === NULL ? $this->cookiePath : (string) $path,
276: $domain === NULL ? $this->cookieDomain : (string) $domain,
277: $secure === NULL ? $this->cookieSecure : (bool) $secure,
278: $httpOnly === NULL ? $this->cookieHttpOnly : (bool) $httpOnly
279: );
280:
281: $this->removeDuplicateCookies();
282: return $this;
283: }
284:
285:
286: 287: 288: 289:
290: public function removeDuplicateCookies()
291: {
292: if (headers_sent($file, $line) || ini_get('suhosin.cookie.encrypt')) {
293: return;
294: }
295:
296: $flatten = array();
297: foreach (headers_list() as $header) {
298: if (preg_match('#^Set-Cookie: .+?=#', $header, $m)) {
299: $flatten[$m[0]] = $header;
300: if (PHP_VERSION_ID < 50300) {
301: header('Set-Cookie:');
302: } else {
303: header_remove('Set-Cookie');
304: }
305: }
306: }
307: foreach (array_values($flatten) as $key => $header) {
308: header($header, $key === 0);
309: }
310: }
311:
312:
313: 314: 315: 316: 317: 318: 319: 320: 321:
322: public function deleteCookie($name, $path = NULL, $domain = NULL, $secure = NULL)
323: {
324: $this->setCookie($name, FALSE, 0, $path, $domain, $secure);
325: }
326:
327: }
328: