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php实现websocket实时消息推送
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& {2 z5 P: j3 _% k1 q, N; ^SocketService.php9 [" m' K; H$ v' J" I- v* G0 a
- <?php
x" E ?5 g/ P+ d( G - /**
8 K: \# t9 P* J6 @: ^; J2 m8 k - * Created by xwx5 i: E5 G( M* V
- * Date: 2017/10/18
& Y2 x- A; y+ k% G( g - * Time: 14:33. P+ | r' \9 U$ f E- g7 V
- */9 X) M% m) x2 d: x$ P1 ^
-
( R! h: {3 p' Q' s6 l) j - class SocketService
; T& M' y4 I3 u) X- l - {
! m& v2 \# W2 S' n* K$ J5 f$ g) W - private $address = '0.0.0.0';, r0 v) C: v1 X& p2 D% x
- private $port = 8083;
: Z/ V+ r+ f5 a) X3 R - private $_sockets;: \0 c* u8 T! j& d5 l; F
- public function __construct($address = '', $port='')
3 }" f% b9 a* g# S - {
6 m Z/ r* b) I4 i3 O, ~$ W" Y2 G7 o; q - if(!empty($address)){0 H# j0 C' _) i9 l+ G! w
- $this->address = $address;% J. Z- W2 J' E b
- }
% r7 u8 c% d* V- H9 w4 H' m - if(!empty($port)) {: e" [, \# l& ^# Z$ n
- $this->port = $port;
% ]% ?, d7 F" S& ?; T/ K - }
* a) a d9 | k6 x2 w' C* r, J - }. R8 k6 R) z) }
-
4 V% Q/ \4 @* D8 J- z! e' c- {/ m - public function service(){% e0 d5 Q- p; ^ H2 }5 I
- //获取tcp协议号码。; ?/ j( I! `* \) p. H* G
- $tcp = getprotobyname("tcp");: O) ?" t4 O6 A$ a( @( J+ i
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);" | d) s6 g- `5 b& S! ^, f, ^/ t; k
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
, n2 z O& Z/ p. E- {( L7 _ R; y - if($sock < 0)- q' S& }1 ]1 @1 i( o8 c
- {, n+ A" a# _8 ]) l( d/ }
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");0 X3 h3 t8 h% b9 g/ s
- }
2 v0 M' k+ I6 M3 X* U% x ^$ e - socket_bind($sock, $this->address, $this->port);
0 `8 t h$ s- j8 u E( O0 w - socket_listen($sock, $this->port);# }# D5 _* \. l8 W
- echo "listen on $this->address $this->port ... \n";8 h. M6 A8 y+ \9 J! B6 Y, j
- $this->_sockets = $sock;" o$ o8 Z6 f0 ~2 v n* C2 f
- }
1 R: K E5 D8 U N8 j: Q - 1 E5 J" K" Z+ V2 i! M2 R
- public function run(){
; u- }, v( E, q: O6 d - $this->service(); t" N$ |5 I3 L) O2 |+ O( e+ ^
- $clients[] = $this->_sockets;3 h& h' D! o2 U2 \. X( w) v' u
- while (true){) F* S# k& m6 {. O4 R \
- $changes = $clients;
) W1 f5 r- d7 Y: y: h& N! j0 m8 K - $write = NULL;5 {7 s( _& S) @* m
- $except = NULL;$ E4 _( g; k5 D
- socket_select($changes, $write, $except, NULL);8 f+ D3 {/ y- f* F4 p1 c
- foreach ($changes as $key => $_sock){
1 T6 ?, Q/ l; N1 ^ - if($this->_sockets == $_sock){ //判断是不是新接入的socket6 N$ g$ _1 b# d/ M d
- if(($newClient = socket_accept($_sock)) === false){/ N: z$ v: U( S& o9 o2 ~7 q% R9 V, e
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
. b- V9 X. f2 A. _ - }; H- j! Q4 u/ g' g- P) g: ~
- $line = trim(socket_read($newClient, 1024));: w: `7 M2 X& P0 }1 U5 I
- $this->handshaking($newClient, $line);
: U, O6 i6 _) Z& W+ c! u - //获取client ip
/ O5 `% `' [. T N - socket_getpeername ($newClient, $ip);. W: M- g# x: W" C5 f0 T4 a
- $clients[$ip] = $newClient;
1 p( y- v1 o4 N1 H& H: i - echo "Client ip:{$ip} \n";8 N. f$ C0 n1 `1 e
- echo "Client msg:{$line} \n";
* E2 ]# r6 u- K - } else {
, x8 c K9 j) p7 k - socket_recv($_sock, $buffer, 2048, 0);& h* m7 P4 U+ d1 T1 @2 G5 }; R
- $msg = $this->message($buffer);0 P4 b# O3 x9 h0 Y& N/ _
- //在这里业务代码
k U4 r3 e( e - echo "{$key} clinet msg:",$msg,"\n";! ]4 F: w W+ {8 m/ V
- fwrite(STDOUT, 'Please input a argument:');
' q0 p, L/ t& A0 M4 Y, |! G a. I - $response = trim(fgets(STDIN));
' t) x2 Z2 M( o, H! h, K4 L - $this->send($_sock, $response);9 S: Z' f L2 ~* E- {& u
- echo "{$key} response to Client:".$response,"\n";
+ z8 V5 B6 Y/ ^" A. ]# A - }
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- }
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- /**, j Y: |8 V3 t" |, |% e
- * 握手处理& j/ g2 C% ?: H% i7 R: k
- * @param $newClient socket
$ M2 |4 O' ~1 q$ d6 @# C' X2 i - * @return int 接收到的信息
|/ l- G! ^# D% s4 L1 Z9 v - */
& H( l6 Z4 x2 U - public function handshaking($newClient, $line){( W; h2 f j3 r# H' N: H' m
-
! K- }. y) q% m+ v! T# y3 b - $headers = array();
# A) K% a2 [2 R& _8 N+ M7 { - $lines = preg_split("/\r\n/", $line);
+ H0 _* s/ I. k; p' ? - foreach($lines as $line)
' p3 n) u& _6 x/ [6 L: V - {) Q3 M& b1 y5 b. D
- $line = chop($line);
2 {+ s% |+ A' H' F$ t - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))! W* \8 @# Q1 y4 F6 }
- {
' W- I# N9 m1 K - $headers[$matches[1]] = $matches[2]; m4 x& K( y( |
- }
" X# s2 h+ x' B. I2 k5 R - }$ T! Z l* o" \2 |, n
- $secKey = $headers['Sec-WebSocket-Key'];
. _4 ]9 ]& r) I - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));1 c5 P( g" c( P
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .. M" J/ Y( h7 ` |& n7 G" F2 [& ?* V
- "Upgrade: websocket\r\n" .
& L, c3 y6 j4 q d {( [ - "Connection: Upgrade\r\n" .
9 c7 L7 ~; s( A Y( y - "WebSocket-Origin: $this->address\r\n" .4 |7 G$ ^- j8 r2 ]' }
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
. [* \! ]8 h# b# w - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";! E. e. i% g( Z& O$ u7 H& n; `
- return socket_write($newClient, $upgrade, strlen($upgrade));
1 V) o- E2 I) A9 Q/ G - }
) \/ O/ @) q0 T -
8 b3 E1 L2 G$ k2 B7 t3 L - /**2 p e. N5 S9 b* }; I
- * 解析接收数据
: D2 W) `& i6 @( e y! K3 _# k - * @param $buffer# c/ m- v. ]+ A$ y1 e5 `, T
- * @return null|string
4 k/ F5 N0 @/ d - */" O$ O1 F- I! N5 }7 R1 U+ l# i
- public function message($buffer){
/ V7 n8 |& l- R0 j" p, ]$ C - $len = $masks = $data = $decoded = null;
9 D: W0 j; P* B* N - $len = ord($buffer[1]) & 127;5 T( M% M5 ]9 B1 ~5 x7 I8 a* Q: J
- if ($len === 126) {# k4 \* ]: {' A) `
- $masks = substr($buffer, 4, 4);0 i. C6 d, @2 d! u& x
- $data = substr($buffer, 8);4 ~0 m( o( ~6 `# F2 \6 @( j* z
- } else if ($len === 127) {
. W4 v1 ^, N% J( ^ - $masks = substr($buffer, 10, 4);
; N9 a8 g2 C) N0 f - $data = substr($buffer, 14);) h% o) \4 i5 b
- } else {
, |5 O. D- I2 t) z; e - $masks = substr($buffer, 2, 4);
3 _& h2 d& n) b; K# m2 ? I - $data = substr($buffer, 6);
, G5 c/ D/ F k. P. u# a6 { - }
! V1 l6 s$ b# p6 ^9 P$ j. M - for ($index = 0; $index < strlen($data); $index++) {; ? Q: L+ k# r" D' Z* f3 K
- $decoded .= $data[$index] ^ $masks[$index % 4];
+ S" t( U( s( w/ I# j - }) Y0 b/ s" v3 O( S% q& i& o
- return $decoded;
3 d& W: M% N- |% T$ u: C - }
. N$ N+ l. \' v/ A* l' J4 o) d - 0 K. J, |3 o6 E+ D. q
- /**' o& n7 m. f- @/ e: x/ e/ X" G
- * 发送数据, M) d Z P* @* G; S& ?
- * @param $newClinet 新接入的socket' Q2 h+ W" c, {7 t8 Y$ M
- * @param $msg 要发送的数据
U' C z$ A/ p# o5 Z% a. ` - * @return int|string4 j4 [' u* Y+ a9 A
- */
4 ~- \; T& e+ X0 ^# f$ j$ } - public function send($newClinet, $msg){
1 f5 b* \: c* m - $msg = $this->frame($msg);2 x9 @; e' n8 x" Q2 Y+ P
- socket_write($newClinet, $msg, strlen($msg));
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-
% n# E! T. N9 }' i - public function frame($s) {4 M8 m/ @' d! K% K3 m
- $a = str_split($s, 125);
2 c1 f( O- A/ @7 Y x3 r - if (count($a) == 1) {
! a% a" |$ u' g+ { - return "\x81" . chr(strlen($a[0])) . $a[0];
6 d8 | i: u* w( v$ E; ]" O8 J$ D - }
+ X) u+ W3 G6 h0 _% S# T - $ns = "";$ B3 O+ J" f6 |3 A( _' i
- foreach ($a as $o) {. d l# `' o' B3 g' Q
- $ns .= "\x81" . chr(strlen($o)) . $o;
2 G; ]& ?; r# g- p - }
8 {3 y- z& T. X - return $ns;
) S9 Y' `) a& V - }
1 B) G4 R8 c& ~5 ^ -
; g. j' k! A, K6 {& v0 U2 S - /**+ M5 Y, P* p z6 R; \
- * 关闭socket+ w7 [# j7 Q) c, C$ t) C# Y
- */
8 f6 v0 z8 P1 R3 G7 J& T, F" l9 M - public function close(){
. ]- O% r9 z# B5 {- s - return socket_close($this->_sockets);
1 q# S- K! i4 {, m1 q/ A7 |# g - }
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-
7 G( Z* c @5 C7 W - $sock = new SocketService();) w8 P6 L* S5 U g0 n. C
- $sock->run();
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复制代码 web.html, y8 x9 ]( H5 H6 j' P
- <!doctype html>
7 v& R: y/ {% s4 i" P - <html lang="en">6 h6 L |; N2 ?6 Y
- <head>8 K. D- K: U5 b
- <meta charset="UTF-8">" r; T- d# S6 S% j! n3 W$ ^
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">& t F/ N% J/ b ?9 ?
- <title>websocket</title>
" e8 u+ Z& _! J" m* K - </head>+ _' W3 q$ w, q% ~+ z, P
- <body>, I5 T1 b2 G! r2 E2 \9 ]" F# ^
- <input id="text" value="">* {5 r5 V# f7 U
- <input type="submit" value="send" onclick="start()">
) Q. g% M9 S2 _+ P3 T - <input type="submit" value="close" onclick="close()">& ^( f- ^4 z! n3 t
- <div id="msg"></div> B+ n l: Y0 g7 x4 F4 ]0 v
- <script>
' S4 P6 o7 w/ `7 q - /**
& H, ~ \" v! t% M$ R7 c - 0:未连接- Y& r8 H4 I1 I" x
- 1:连接成功,可通讯! c+ E7 }+ W, _# @ i, [6 ?
- 2:正在关闭+ I. s# T, _& W/ |& z* F
- 3:连接已关闭或无法打开
% o5 c! {. I9 v - */
0 N) M* A9 M" }' {& D; D/ D/ ]2 ^2 e - & m2 D1 S+ B, h0 h* k( l
- //创建一个webSocket 实例
3 z( O- ^1 u3 g# Z - var webSocket = new WebSocket("ws://192.168.31.152:8083");$ a; R4 U% J! N. {: }
-
3 `1 j9 x+ W$ E& p$ y -
% H" Q- ~ @ n0 Q4 |' ?% p$ A2 x# g - webSocket.onerror = function (event){
+ {0 J: T3 f/ q+ d3 H - onError(event);. L) \- o7 b" E. D
- };: U) [2 a; [; z% v5 l
-
( ~# ^! h$ }+ v; Q; V8 T - // 打开websocket
& w$ L4 |2 L4 |4 H! E: F - webSocket.onopen = function (event){: n V, U3 K4 f! G3 s7 V
- onOpen(event);
$ f5 } Q; S, {4 h - }; ^* C& J' Z) b
- / e A, W) n( o' W
- //监听消息$ L* V O4 P7 W" J" @
- webSocket.onmessage = function (event){
% t0 {" o# \& g5 p0 ] - onMessage(event);
# H3 K- o/ ?: V7 A; C6 c, P - };
6 T- z- n! D% @7 w -
7 C* w; h1 |" n5 D2 |& N9 E1 v+ {' t - 1 \/ C$ y8 k4 b' Z
- webSocket.onclose = function (event){" @/ ? b+ ~% \# K" Z0 z
- onClose(event);6 l* c4 T: R2 h. o \4 ]
- }/ I& L6 [2 n b0 W
- # g( \2 P9 {( f$ E/ A
- //关闭监听websocket, r& y2 I/ m |# r5 u5 }1 l# J
- function onError(event){
9 P& l& L! u# K! \, t' H2 D - document.getElementById("msg").innerHTML = "<p>close</p>";* P' |1 {; l( V U6 e) S* V
- console.log("error"+event.data);
, F( j9 ^: t& m r# V - };- W1 k/ B$ W1 [; z, \
-
/ S# ^* d K0 T! l* u - function onOpen(event){8 C& `1 Y! R* Y& B. O9 D
- console.log("open:"+sockState());( }6 ^- Z7 T7 c7 B
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
9 O) C7 S2 ^- w3 K5 ^4 g9 | - };
# a! j" J5 L6 c; l/ }. s - function onMessage(event){3 j m; ?, i; R. h. u; }
- console.log("onMessage");3 k z8 D3 Q" D2 q6 F3 h6 K+ g
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
/ O3 z6 p8 @8 @9 M* j: o - };* s; M; R, r6 Z9 @ F5 [
-
0 G5 }( }7 i1 U0 {0 s5 X - function onClose(event){
3 [2 j+ t% T- T- i - document.getElementById("msg").innerHTML = "<p>close</p>";
7 H7 D# ^; S- Q- \4 s6 Z - console.log("close:"+sockState());
4 d& d7 l( S1 g9 v5 K) g/ p& X% } - webSocket.close();
8 b# D& F1 ]$ _% u. c. g - }
; t" Z; H& k5 q: h" V2 v - 9 |# j7 a. S( ]0 L! d, u
- function sockState(){+ Q, ]2 e9 D" l8 I$ G3 y
- var status = ['未连接','连接成功,可通讯','正在关闭','连接已关闭或无法打开'];, q" w% R. b; ?# v( l6 V
- return status[webSocket.readyState];- M4 [# p9 u0 f3 P( a! }, s
- }) H- j1 U% N! [( `; |
- 4 U- E( w% _6 J6 a! Y
- $ a; p) R0 G, A- p0 \7 W7 J/ Z
-
& t' `& j( ]) o. G6 } - function start(event){+ p/ I+ o2 h! j1 k, c7 F
- console.log(webSocket);
0 \5 {4 ?; x. x) a - var msg = document.getElementById('text').value;4 a. N/ x, C2 W+ j. N1 I8 I
- document.getElementById('text').value = '';( D0 l' E& w8 {0 L2 R" M
- console.log("send:"+sockState());
* x2 C: N$ T( T& J - console.log("msg="+msg);
/ f# h5 R. L! Q ]/ f; I' ` - webSocket.send("msg="+msg);6 P$ l; @% ]0 [) x1 s) k
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
$ O2 Q$ o+ y( @; `$ n - };$ h& G; P/ B/ g+ S5 M5 @5 Q
-
# T3 Z! W, }6 S - function close(event){
2 ?0 |) a" N. a - webSocket.close();- T% p& s1 X. D2 Q) X
- }
- E) X* c7 @+ ^* @: E. F3 L2 z - </script>
# a' p6 v: G9 C - </body>% w$ k% I2 x) a$ N1 `
- </html>
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