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php实现websocket实时消息推送
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7 D; Z+ W& T: i* n6 b& BSocketService.php8 \9 q5 a N: ?3 ]6 r- p
- <?php
6 c0 E' W& P& w# I; R; O - /**6 Y8 X6 B- E n! k( j, f P4 c' U
- * Created by xwx) d0 P V5 L5 e3 z2 n- s- N
- * Date: 2017/10/18
( y& z2 M3 g G& q" t+ p - * Time: 14:33
4 x8 r r% G! _' n - */
5 g7 y8 y" W0 O+ q3 T' x" a - - v9 G7 O! B. b
- class SocketService4 R `2 v- Z0 e5 U
- {4 y2 f ^9 ?! ?6 D1 {
- private $address = '0.0.0.0';
5 ]# [: S4 W" U/ b7 w7 x/ k - private $port = 8083;
! x& m5 _, O7 y9 i, i" l3 \. x" H3 x9 M - private $_sockets;/ y2 J, q0 t3 w; t O
- public function __construct($address = '', $port='')
, x% @$ y3 O5 p9 G; D - {
0 V9 a7 R0 @/ y# c$ Q! O2 ?& K - if(!empty($address)){+ M' ] I; m! w+ s( ]4 Y
- $this->address = $address;4 U( t% K0 `( O# a. s' {, T
- }
4 V; P5 h' @ Y: e& m u8 u - if(!empty($port)) {* }" h! W( L- @8 A2 }2 Y$ i ~
- $this->port = $port;
/ h/ D3 }1 ~- N& K* f - }" E$ k9 K" c7 D: y+ `. z7 Z8 ?/ v
- }' ]/ T$ s6 |$ v9 ^/ Z% y: i) u% |
-
( z- I8 t0 l# w8 W3 E - public function service(){0 S" r8 Q5 a. q' X% ~+ C
- //获取tcp协议号码。
8 U3 ~( }+ [+ w; {9 g- k, b9 {; B - $tcp = getprotobyname("tcp");4 A# _& B% E& z4 K2 g
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
/ g* h- {& B+ S' f* |% Q - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
9 |% I0 v$ ^& q( x# I# V2 B4 e" |3 z9 Z4 M - if($sock < 0)- ]: m1 @6 C/ f6 D6 L! C
- {9 k8 U% u* q3 g3 W8 t
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");/ D0 o' W9 `8 d- }& z
- }
; E# s, t( |1 b6 t' F7 H) E - socket_bind($sock, $this->address, $this->port);2 o5 {0 F$ u- E! @1 C5 T/ V
- socket_listen($sock, $this->port);
5 {& a5 k" d( s5 U$ o- n' f9 r - echo "listen on $this->address $this->port ... \n";( D" N( k- A, N% \8 h! ^+ a! `9 I
- $this->_sockets = $sock;7 _# m3 W# g3 |! M/ ]
- }0 Q% v) X* B ]7 D2 u% E
-
; t7 r- c4 K5 J6 ] - public function run(){4 u- p& r) S# p4 z0 \, ~
- $this->service();
6 b o+ c# ~6 O' A - $clients[] = $this->_sockets;
! H+ l% v: l2 Y6 p - while (true){2 p) _7 e; X& @' i d: q$ b# Z# I6 @
- $changes = $clients;/ k9 p% W2 l$ g3 L* B
- $write = NULL;# z( B. Y- _: r% ?6 c+ `- J9 j; t
- $except = NULL;
7 p. E" Q$ j! Z- J - socket_select($changes, $write, $except, NULL);
# e7 ]8 y" J6 t4 ^' Y- @ - foreach ($changes as $key => $_sock){
: b4 @' o+ G: d0 N0 }4 D5 W - if($this->_sockets == $_sock){ //判断是不是新接入的socket
3 L2 S0 A9 v: s7 e; e' L - if(($newClient = socket_accept($_sock)) === false){
) H, q2 }3 _$ M; p, I' I - die('failed to accept socket: '.socket_strerror($_sock)."\n");3 l# l: d" `5 V( I. l5 x
- }
2 v, c0 d J( e" `3 e- G% i - $line = trim(socket_read($newClient, 1024));7 J7 |+ U8 n/ u: O* O F: V
- $this->handshaking($newClient, $line);# l( v2 t; A6 w( P1 d% A0 M
- //获取client ip5 ~* ?- `0 b2 p1 u9 M; H) b
- socket_getpeername ($newClient, $ip);! {$ y7 b) M' a
- $clients[$ip] = $newClient;6 Q8 {5 ^4 t% d) u
- echo "Client ip:{$ip} \n";) B: Q, e7 E. R/ h6 ]
- echo "Client msg:{$line} \n";8 f. _+ P/ N: c# ~
- } else {" G. h6 Q: }6 A$ K8 z7 F
- socket_recv($_sock, $buffer, 2048, 0);
0 P8 C' D+ _" n6 A$ h2 d6 H! ?/ `5 H - $msg = $this->message($buffer);2 X+ `4 b1 o q9 ?
- //在这里业务代码
6 t4 _/ N9 u' P' S% s) ^, H& w - echo "{$key} clinet msg:",$msg,"\n";
2 `8 o* B. _; ^# j! K - fwrite(STDOUT, 'Please input a argument:');
- m0 g% r+ `' P+ s5 H - $response = trim(fgets(STDIN));+ O% S0 B1 M- N5 g8 ]8 H
- $this->send($_sock, $response);: |( g$ k. T' j& F8 b
- echo "{$key} response to Client:".$response,"\n";
- R* h T& ]1 B# I - }- ?' v9 H) @: l2 o
- }" V- O& b n: r$ p. v+ f
- }/ u H' m% r8 h R# O6 k% T
- }
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- /**) a* r2 Y% ^- ~0 f
- * 握手处理
! |1 E# b$ k% d8 } - * @param $newClient socket4 ?2 F1 F R3 h- {1 c; L+ F
- * @return int 接收到的信息
4 B( z% @+ r( @6 ^7 {8 N, z( M6 L - */
. H9 v' v& p: B# _/ _9 u - public function handshaking($newClient, $line){6 ?+ J% K: F5 [2 e, T0 ^
- # b( Z& @+ l& S8 {! H/ C. ]
- $headers = array();6 k. E! S4 U. V4 H/ D
- $lines = preg_split("/\r\n/", $line);. s, h# U3 O* O/ O
- foreach($lines as $line)$ B k) p" Y. p9 M
- {
$ n- H5 o. v1 y) E% q - $line = chop($line);' V- V! E+ P8 O: d: W$ o ^9 J
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))! w/ B* x6 P( o: ^; B0 C
- {+ p( X* P) A3 x
- $headers[$matches[1]] = $matches[2];
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- }0 s( E" e T3 l! b
- $secKey = $headers['Sec-WebSocket-Key'];5 t* O' b$ f0 e, g6 r; _# S
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));" q% l# m3 s, a+ k
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
6 p0 s& I4 R9 q" |3 j5 v - "Upgrade: websocket\r\n" .. Q3 I8 H4 Q7 d, g8 C5 v6 f; _5 C, F7 N
- "Connection: Upgrade\r\n" .3 d' {6 z! \/ ?9 k
- "WebSocket-Origin: $this->address\r\n" .
* y4 t# P; |% S" M - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
1 U3 H E: x& @% m - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
4 |* x. c4 \8 d+ Q, q( m - return socket_write($newClient, $upgrade, strlen($upgrade));
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- , G/ x7 N3 Q9 P
- /**
# |- O7 Z8 R- z# F- }8 w - * 解析接收数据
! q7 d1 P2 b3 I# \9 ?3 ?: u - * @param $buffer
) N/ g/ U \0 c4 H; q# a - * @return null|string
8 w) y* q; G; B( {6 M$ U - */. G7 P& d+ J" m' U' F0 }
- public function message($buffer){
- a4 a8 y# L) M2 a. V. }' e$ F - $len = $masks = $data = $decoded = null;1 v9 f! a, _3 s' F
- $len = ord($buffer[1]) & 127;# b0 b& g2 Q& r7 G! F6 x
- if ($len === 126) {& t4 F; O* Y. H4 g, t8 K/ j* E
- $masks = substr($buffer, 4, 4);
; z/ M5 Q8 A! {$ i/ t" E# r9 _ - $data = substr($buffer, 8);
" H& G1 g4 i0 }& D- {: l - } else if ($len === 127) {( H0 n0 a( O/ f% u4 x0 e4 U
- $masks = substr($buffer, 10, 4);
' D- u$ k) U& L3 @1 Q4 D [ - $data = substr($buffer, 14);7 a3 Q2 W6 I! a8 f& d$ W- G% e
- } else {
' J8 Z! t# B9 t: t' a0 m3 v9 m! M - $masks = substr($buffer, 2, 4);
3 U& r! ?3 g" c, l1 r) ] - $data = substr($buffer, 6);
8 _, W d: \# Z4 { - }3 q$ ^2 a4 l5 C" m0 e, ]5 G
- for ($index = 0; $index < strlen($data); $index++) {/ C3 I, ?) ?- W' ~# d: P5 ?
- $decoded .= $data[$index] ^ $masks[$index % 4];
2 ~' J/ _# D, |: s; f: e - }
: l6 ~" M7 ]. C5 M3 S+ j" n2 ` - return $decoded;
F" d6 S; |. }; ^# @ - }6 c' y" _0 o+ i. I9 |3 L) `/ H
- 4 E* k8 S6 q* E2 c& F* d; Y
- /**5 ^+ v: q ~* y- a+ `; _. [2 Y
- * 发送数据
% e4 k8 X+ K) e% w+ h - * @param $newClinet 新接入的socket
/ ~3 n' L* B6 P: n& p& s - * @param $msg 要发送的数据
2 o% U! b O& E# Y: o2 C' j - * @return int|string3 B* P2 H5 C9 m% n
- */2 D7 M/ M' @% s9 T
- public function send($newClinet, $msg){8 B1 V; w; O& H) ~0 K
- $msg = $this->frame($msg);
9 \% E: i+ p, u* \& o2 j - socket_write($newClinet, $msg, strlen($msg));
3 h- O3 Y7 X( t' U( X - }
- U. M3 j8 m Q5 q - & r# N4 e) L! V5 m0 E0 N1 c& O4 T
- public function frame($s) {- ]1 P* K1 e- g5 }$ c0 d
- $a = str_split($s, 125);
0 F; Q4 {! s% n- T - if (count($a) == 1) {
) s. v- S! R4 e. B. a* f, B. g- S( H - return "\x81" . chr(strlen($a[0])) . $a[0];
3 B7 m7 @$ e# [3 }) z - }: X A/ W! o/ m% C( d; J
- $ns = "";$ C( O5 V' ]6 G- R$ c( _
- foreach ($a as $o) {
+ A, u0 _2 {& f* H8 ]7 k- P. R - $ns .= "\x81" . chr(strlen($o)) . $o;0 _9 U& X# ?, E$ B2 ]
- }
) c' Z6 Y' t( P0 y' H# f - return $ns;% e' Z/ A' x$ I$ a6 F
- }
# n( Z5 b- w- \5 P8 v& z: h -
" s3 M J; \! M/ o - /**& I) c* U) b9 s/ e/ P$ V: m$ `
- * 关闭socket+ n; u' q! T1 y6 c9 g; }$ P
- */! _ h( X i8 Q9 h
- public function close(){
9 X1 J3 f" f* Q- `. _ - return socket_close($this->_sockets);
( m- c6 f( s* `0 u+ q* A - }
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- , A, I, w) Q) ~; T6 I. r: i, G
- $sock = new SocketService();
% F; e3 w! C7 T6 b5 S& M* V - $sock->run();
- k& ?% W$ T; o) v( h) g# y, l
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复制代码 web.html
0 i& [) [6 x7 J3 m6 k3 A- <!doctype html>1 D3 O) g9 W" B6 C2 U
- <html lang="en">' F2 m$ x9 O7 W, B' b7 Q4 h
- <head>
, @3 G' h+ R* \ - <meta charset="UTF-8">2 ^ t5 L' F$ f5 m6 x+ l( y& l
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">! J& l- y* p+ \2 t |' r% B
- <title>websocket</title>
' Y+ \/ J, ]# C# V - </head>: H2 B: M0 M& c3 ]! x1 e
- <body>+ ]9 v5 ?9 Y% C
- <input id="text" value="">
7 b+ T3 G$ V$ W% G - <input type="submit" value="send" onclick="start()">3 a) u# ~/ U S/ w
- <input type="submit" value="close" onclick="close()">0 g/ n$ K/ N* r9 @" h; ^& ?
- <div id="msg"></div>
9 l, A3 l% N! g/ {1 H. O1 w/ g - <script>- C! @5 C1 {4 l- u
- /**
' \3 L2 D: |0 U4 u1 l$ k, O - 0:未连接
! ^" m4 `+ y) d- y% U - 1:连接成功,可通讯( c" s p1 k5 t' x% b) |* O4 p, d
- 2:正在关闭& |! G/ b8 B. e A6 U5 d7 T
- 3:连接已关闭或无法打开, ]. ~, Q3 C. R. K
- */: V z9 R' C8 U" H y j% _
-
M T8 v" `0 [( T1 o3 r: w - //创建一个webSocket 实例
, i3 Y1 V3 N( N% ^3 c* H - var webSocket = new WebSocket("ws://192.168.31.152:8083");1 ~& n/ y$ M, F: H9 o7 R
-
% T( N3 A: ]6 D. c4 S - & y. d. ~' f+ C: d6 R
- webSocket.onerror = function (event){
) G3 n$ N3 s9 N2 j - onError(event);
! v, M9 P0 ^1 U1 W, h& y - };' Q4 W" ?& k3 o5 I3 E8 E
-
) U' V7 E* x. R) L# \ - // 打开websocket. A- O+ z6 B9 O
- webSocket.onopen = function (event){
/ M# j2 N7 n& O5 W) Q - onOpen(event);2 x1 {2 }8 X# F
- };
8 X3 [) A8 e3 i1 a& j( l -
2 r/ n$ r* T! f6 W$ D - //监听消息+ ]& R& o, c) J% X( R( h8 v
- webSocket.onmessage = function (event){
9 @$ `3 y. ~- Z - onMessage(event);$ s9 ?# R( _" f& c% S4 ?
- };
. F1 S( b/ B6 f6 k% r0 B7 ]+ @ - 6 D7 [0 h4 Q& ^3 m h8 b
-
' `: g- y& [$ o - webSocket.onclose = function (event){7 T1 r9 T5 Q5 h5 w: c7 y z8 G
- onClose(event);+ p- y( o: m3 s
- }
, ]6 n7 W* X5 R7 d7 I; M - ; g5 E2 _; s) d
- //关闭监听websocket
a1 t0 Z. j& K2 g - function onError(event){* ^8 `& U6 N8 O4 N, _/ ~; F8 r
- document.getElementById("msg").innerHTML = "<p>close</p>";1 P8 A$ n4 b* I4 Q5 V' _
- console.log("error"+event.data);
" a; a) V' M, Q - };
. R I6 i. p& p6 n - 5 @% l- h7 [% F+ e ], C( G5 Q
- function onOpen(event){1 m$ _! f- }$ D0 R% E1 R
- console.log("open:"+sockState());1 n; d- ~, c* D% p$ Q* f
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";, H) ]8 N* s Y) Z0 W
- };
7 D: b& G4 P+ I V8 Z - function onMessage(event){9 S8 l+ G0 Z. _; Q4 X
- console.log("onMessage");/ a( N/ g& q1 S
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
& T& q0 s/ ^$ d - };
# Z6 q* _3 u* ~. U$ g1 j9 j9 v' n) _ -
/ n0 G( T: a+ L: E) d1 G - function onClose(event){
9 E2 \& t1 _- n8 j- b - document.getElementById("msg").innerHTML = "<p>close</p>";5 |+ t% G0 I/ _: B u' P3 T
- console.log("close:"+sockState());0 K, d( N3 ]2 X5 {0 d( `
- webSocket.close();* H. r. T9 ?0 Q( R0 j! s2 H
- }
( x" q) p6 s" ?2 {# R - + D; q1 _) f5 H. Q) R" j/ o
- function sockState(){% I% ^& ~# [; n0 K- ^' c
- 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'];# N- k3 s, {, M3 _' s
- return status[webSocket.readyState];1 b& k' B$ ?2 h" H' U+ K' S% L
- }
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$ \- r( U+ T& J4 o -
! @3 S; K. u# z1 X% ~- \ - ' k9 g% ?; s# Y1 z' ^
- function start(event){
+ U' @( m5 g* c" o; h3 r - console.log(webSocket);
/ v) M0 M, n+ F g8 v# ^/ q/ N - var msg = document.getElementById('text').value;; N( v/ p( ^) r8 C6 a" l u
- document.getElementById('text').value = '';$ v B1 }8 l/ H- [ {/ g3 m) o
- console.log("send:"+sockState());
, R. b7 f3 m( q1 r h0 u- c5 T: h - console.log("msg="+msg);/ r$ t. b2 \( X
- webSocket.send("msg="+msg);
' T3 E0 c# g$ x2 F$ {- q - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>": l1 y& P, {; `1 i: T1 i( V( A
- };4 l5 f: V+ {$ [, d
-
6 z c7 S; c+ R) V% _& | - function close(event){( Z1 N4 H) r& C2 v7 k; m0 Y
- webSocket.close();+ W( c( d+ m6 w: V( _( b+ [
- }
6 b5 C7 Z5 |$ W l6 m; H - </script>1 p9 F: i$ M3 N
- </body>
0 Z- U" z x. s! m% ]( Q - </html>
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