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php实现websocket实时消息推送
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SocketService.php0 J0 E8 U0 y. Z( H8 O' H/ Q
- <?php
# p' w: G# I7 {$ }2 ? - /**
2 }$ @5 F: `1 Q3 g5 E- m6 g - * Created by xwx* m0 t/ ]% W0 v5 n/ k, G! a7 e
- * Date: 2017/10/18
. a+ Y( H7 a7 l7 w- a - * Time: 14:33
* X/ \$ w8 j0 i+ B R1 D+ { - */
1 H* `4 n; |9 `, k' @7 [+ i: l -
2 ^3 D. n; h" ]: c* c2 q& D8 A - class SocketService
8 Z2 Z+ X% `: T! ? - {* k* E$ {0 Z' o% f$ }
- private $address = '0.0.0.0';& ~. i& `$ X9 |; `" Q
- private $port = 8083;
$ ~# y. q4 l9 M I' Q9 F - private $_sockets;. C. l9 Z2 @5 U" c" T+ M
- public function __construct($address = '', $port='') | E1 [* e# g0 ?6 S# o/ d! n* f
- {
/ @2 Z* L# m- f5 s3 b# {. p6 H, Y - if(!empty($address)){
9 Y( s8 f6 E1 ^# }8 Z, f9 R - $this->address = $address;5 V+ L* d$ [9 I
- }
6 D: \4 F7 ~+ Y: v+ e0 @& b+ u - if(!empty($port)) {
! X$ a6 Q7 t0 q5 O1 X( _ - $this->port = $port;/ P& I/ R1 F7 [
- }
4 F0 T3 X9 z( ~- W* k3 C. W - } P* H1 y( q& c( F/ c0 p0 \
-
4 f+ k+ L# G9 f0 ^' i - public function service(){
2 h5 K) q- ]. k$ O' I/ L* @ - //获取tcp协议号码。 F% l: Y* }8 j8 _! i
- $tcp = getprotobyname("tcp");
* a3 m! Y. Z P6 \. `- j7 a1 R - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);7 N& O& G* t6 n- [' Q
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);$ O3 s0 t1 m4 m" f( E+ e& E
- if($sock < 0)- |/ x& _! M$ J) b* T+ a
- {9 k, Z& b( }9 M
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
/ f4 k# e, H0 v4 _- k; m' D+ k - }" f" S1 w* t$ P/ `
- socket_bind($sock, $this->address, $this->port);
+ _8 e u2 u3 l% v - socket_listen($sock, $this->port);# t7 A4 O% `: |, d
- echo "listen on $this->address $this->port ... \n";
$ i; ?, I K' x' h5 l8 y9 P - $this->_sockets = $sock;
4 o! q0 I) }5 p - }2 f5 {( y* P0 K9 K: U3 o2 d% ^
- 9 D9 B6 F( _6 y; a: B
- public function run(){
, A8 }! B. b% N6 s+ ] - $this->service(); Q% }- n. a" G1 T0 ?1 c$ i) B
- $clients[] = $this->_sockets;
, s7 } a8 L, o2 ~0 G% {# y - while (true){- \. j4 |9 h$ p3 b9 T# R4 ^2 J- t- ~* ]
- $changes = $clients;
) w9 _ I6 f" C8 C3 F( B - $write = NULL;
7 }& _2 z8 l D! \; R5 b - $except = NULL;. |: h! y2 r6 y6 X- I
- socket_select($changes, $write, $except, NULL);6 o5 Q3 ] a4 K7 t) n* L# ?% u
- foreach ($changes as $key => $_sock){9 Y2 k& `5 |& L( B8 S' H) R* B( f- \
- if($this->_sockets == $_sock){ //判断是不是新接入的socket
( B5 \& }% e/ ~3 D( {/ U4 ~) W - if(($newClient = socket_accept($_sock)) === false){
' ?0 N m5 _+ v6 Q - die('failed to accept socket: '.socket_strerror($_sock)."\n");
; c X H1 t* t$ o - }
6 N" i, B. w) O8 b3 D# J. w - $line = trim(socket_read($newClient, 1024));8 { Y6 K# J$ w1 [8 W9 w
- $this->handshaking($newClient, $line);
! |9 q; D& B6 j% t+ Q' S - //获取client ip" `( c) Q# z; h2 i# @ {. n
- socket_getpeername ($newClient, $ip);
# ^1 {& [+ C" s5 i7 y& X' ` - $clients[$ip] = $newClient;
9 s7 q2 ^/ m' V% N( o - echo "Client ip:{$ip} \n";. L7 X w5 y" Q* b
- echo "Client msg:{$line} \n";# k6 v2 T* L @7 A8 Y) l1 P8 W
- } else {
4 P7 A# K( i# }) U$ k: K: B - socket_recv($_sock, $buffer, 2048, 0);
l- e- c. ]; F- H- \: X/ }1 V - $msg = $this->message($buffer);' N- B: q1 d% A! Y' c) L: B: P
- //在这里业务代码7 C W2 V) s9 v
- echo "{$key} clinet msg:",$msg,"\n";
8 O9 C& k0 L. }' g# b$ N - fwrite(STDOUT, 'Please input a argument:');
, M/ z, Q3 e6 P1 T. n4 a - $response = trim(fgets(STDIN));
! f- M% X8 A- l7 h0 ^4 ]! x8 \ - $this->send($_sock, $response);2 e1 h) l. ^3 N1 [% X/ J+ R! Y
- echo "{$key} response to Client:".$response,"\n";0 O. K( u3 H3 Q/ {; \ D
- }6 V, b/ q3 X9 t- K: V {8 ?
- } |3 w1 @" h5 O6 G7 H, g# j
- }
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- 8 g; [& J8 I% W! v9 d
- /**
: @. F" d9 I5 @; V - * 握手处理( t* g2 o8 W5 W+ y b: |6 M' B
- * @param $newClient socket# u; u# p8 l' c3 c. t% b
- * @return int 接收到的信息
/ R. a9 h2 [& ~! V6 | - */2 f0 o4 a ?0 J* d; B9 B( L
- public function handshaking($newClient, $line){; Q% q Q1 |$ X
-
/ S0 `: X0 z$ v" v& Z - $headers = array();
! ~2 i8 O8 B, M. Q - $lines = preg_split("/\r\n/", $line);8 K# `/ I( { P+ w
- foreach($lines as $line)
5 x& c$ I4 S8 m4 Q; `1 u - {1 X2 e5 k; O% O( g4 A
- $line = chop($line);2 q% v, i, F6 J% X$ h8 A$ s
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches)): ]) I$ K0 {( x0 d' q9 B
- {
9 |; D* k* e9 {( z - $headers[$matches[1]] = $matches[2];
+ }1 l; j! E% U" ~; E6 ^& _ - }
# |6 \. ^) t* A: ? - }5 ?5 S; S) O1 `9 u; _
- $secKey = $headers['Sec-WebSocket-Key'];% E2 f! I0 {" t, c/ M' M+ ?
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));0 U! b$ d3 G2 I+ w# O# T
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
2 E& N( t0 u+ m% P5 k7 j - "Upgrade: websocket\r\n" . j* x( F2 y& f# L
- "Connection: Upgrade\r\n" .
6 G" ^& m& ?# j - "WebSocket-Origin: $this->address\r\n" .
" ]6 P. R# b+ D3 F - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
* i) }4 q0 e6 d: l - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
& I& m# Q0 E0 E2 b - return socket_write($newClient, $upgrade, strlen($upgrade));
0 T; O% N# p; V$ ] - }
8 g K+ P; n1 c1 a9 P - 4 r8 I5 S, a& |1 K+ k+ {
- /**
0 U$ G1 [6 f& V9 K - * 解析接收数据% f+ W0 A- y0 Y" S
- * @param $buffer
. j( k# y2 Z3 |2 n1 G, ?( x+ x - * @return null|string+ D9 u4 g8 i# `
- */$ I( q3 c( I+ K. M
- public function message($buffer){" U0 Z J3 s# j1 B. m
- $len = $masks = $data = $decoded = null;
8 v) t f5 t: U7 L4 g# ] - $len = ord($buffer[1]) & 127;
6 x& G( U9 ~3 y' t: y4 Z. m - if ($len === 126) {! _; B7 F4 ?* o: d/ ]1 t# t! `2 F
- $masks = substr($buffer, 4, 4);
$ X7 M+ J; w* b0 O: H7 j - $data = substr($buffer, 8);% n2 m1 `: C; W
- } else if ($len === 127) {( Y* l. a! h9 N
- $masks = substr($buffer, 10, 4);3 d3 s$ `; D3 I# W
- $data = substr($buffer, 14);
S4 U3 ~$ e0 g% N: G+ i - } else {
3 i: r* P6 J4 a - $masks = substr($buffer, 2, 4);; m ?! X5 J& y! d
- $data = substr($buffer, 6);
1 _ y0 b( Z" F' g - }
+ W9 s/ }. x- \. a - for ($index = 0; $index < strlen($data); $index++) {
1 b' B0 ?0 u. _) X - $decoded .= $data[$index] ^ $masks[$index % 4];
$ A+ d" o, h7 N2 S7 D - }
/ Z4 X- Q) Y3 ?! d2 a - return $decoded;( V( l" ?* E g0 f0 E0 ^% L
- }
9 F! t: X9 Z& y- x0 p- X% [ - # X& b! n/ P) v& u
- /**
! S) I* f7 O- _4 { - * 发送数据
0 L7 T T+ s8 Y! `7 C7 J - * @param $newClinet 新接入的socket; u7 j/ B" @: u! A7 e
- * @param $msg 要发送的数据
$ u* E! G* h p, W: R& U# J) Z - * @return int|string
1 l: S4 c9 `8 O+ |) ? - */
4 ]4 a8 A3 q8 W' P m# f* G - public function send($newClinet, $msg){1 a( \: N, K# K4 B$ ?% d( d
- $msg = $this->frame($msg);& u) ]. A6 ^& b/ u4 c, \, I* U. v
- socket_write($newClinet, $msg, strlen($msg));- O! ^* m% O- ^2 a
- }
( I, k5 _$ V; L1 F6 o - / G/ u% i* D& O3 e$ }8 B& W9 {$ @" [
- public function frame($s) {( B+ C. v7 X# n$ T; _+ [9 O
- $a = str_split($s, 125);
2 W6 }* U+ r0 o, I; Y. A% H - if (count($a) == 1) {* e% r# Q/ e& q+ b
- return "\x81" . chr(strlen($a[0])) . $a[0];) F4 y' p8 X" F6 A
- }% E8 v! }8 x' G! I
- $ns = "";
; R" n5 e+ J0 v) C - foreach ($a as $o) {
' w" Y, h0 a% m9 D - $ns .= "\x81" . chr(strlen($o)) . $o;; ?5 f3 F, a! x7 q- A% D/ `
- }
8 X- _$ ~6 i- |" D5 q0 e. L: T4 Z - return $ns;- E1 E" F5 c1 E/ S' c7 ~5 g
- }, V# B! ~& _ E& d( L0 Y, }2 Z
-
% {% B! z R$ l4 H- f4 q& X - /**! P0 O; ~. g3 d7 K2 M
- * 关闭socket
3 [" K% T v; o: w - */
# d* r3 i" t! f9 k - public function close(){) i& N/ B+ h+ W( ^
- return socket_close($this->_sockets);. `# Y! e4 i( o4 y5 o
- }% R3 @2 A" P) s: p1 f2 m: ]+ g C
- }
; ~6 n6 z& n% t& X M$ T* l, n5 e - 5 o% g+ j9 O6 \ t) m5 Z
- $sock = new SocketService();; t, p% r" w) ]3 o
- $sock->run();5 v P% s: z4 Z9 s( a$ [
- % i, A( l, J" c& ^
复制代码 web.html
8 u5 c% h2 t4 i- <!doctype html>: {8 H/ ^8 U% r, P9 s2 K
- <html lang="en">
6 K6 C" a5 z, j2 h - <head>
3 Q5 E; S6 b) O9 F0 n - <meta charset="UTF-8">9 J4 M K. W0 r! j
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
+ V" R0 k' N2 Z7 P - <title>websocket</title>1 v! x) f! H' `. ]4 W% |
- </head>
; v# s6 ~! {/ _7 [ M" M4 ` - <body>8 ^; E+ t4 `4 h9 k; o
- <input id="text" value="">6 Z, U" c$ j4 v$ u5 ]9 y6 \' p! E
- <input type="submit" value="send" onclick="start()">" m2 u1 {1 N" W! p$ f2 n; C
- <input type="submit" value="close" onclick="close()">
- U$ N7 S' G$ H4 A3 l8 c - <div id="msg"></div>( A$ \9 N( o. \$ P5 }, F. T2 J
- <script>3 C6 S- s" K! [7 A0 X$ U
- /**+ x; }# H0 }; f
- 0:未连接& }( g( O; O* s, i2 ?$ Z% m
- 1:连接成功,可通讯4 m! A0 E0 w. ^. H
- 2:正在关闭
5 U# m3 G. Z/ Z. a - 3:连接已关闭或无法打开/ C8 Q0 q+ y+ Q$ k
- */- C$ X0 X# `( Q
- 0 p( E# s; |8 u+ k
- //创建一个webSocket 实例) U4 [6 U5 D* g0 N- W& V
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
1 E+ q4 e g$ a$ S - 6 s( O _& Z; m, ^$ E
- 2 y+ H/ m% C* U, J
- webSocket.onerror = function (event){& \( Q: C _' N: `; y8 Y$ i
- onError(event);
( a) V2 o; M& v: c2 ?2 `$ f# X- h - };
$ ^% z0 b, O$ [' T0 o, ]5 A/ J) K3 z -
. a: B4 M8 @2 I: c [& E - // 打开websocket- N" o6 i4 f( U! G- U
- webSocket.onopen = function (event){0 c/ X. m! v4 u" W) i4 T
- onOpen(event);
3 X: B% l/ u8 X( `2 _0 U$ d( e6 H - };7 ^4 P4 x1 c' E# J, Q) J/ v$ I. `
-
$ ]' h& P5 W0 o( a/ ] - //监听消息' P, A$ c& W2 I9 ]
- webSocket.onmessage = function (event){
( u0 W6 x0 |" Q2 h& R - onMessage(event);# G: m" Y* ^! J; `1 E
- };4 g: b3 _# o2 i4 i
- 4 |4 j, Y- ?: R+ z* j+ Y
-
+ ?/ R0 b0 `% Y l% G3 _6 Z1 k- I* @- X - webSocket.onclose = function (event){
: ]! s4 B. b0 r0 }2 E2 { - onClose(event);5 G6 M8 n1 y& _, q# h S/ ?+ @% }
- }
* V7 d; m) N6 t' Y/ j% N - / _ O6 c/ W8 y
- //关闭监听websocket
% f9 s! Z! Z } u - function onError(event){
( A9 c R5 y! M+ M! w9 p# O9 } - document.getElementById("msg").innerHTML = "<p>close</p>";2 z6 ^7 j3 U; d6 S6 ^; `, q
- console.log("error"+event.data);7 Z; S7 c! ?3 s: C- E. p1 ?# k5 |' g
- };0 {( Z. k! }8 z+ N' c# ?/ n* {
-
) h2 x) `0 k& B5 P* H - function onOpen(event){# i! l9 ~+ B8 d1 G* q+ ` P& O
- console.log("open:"+sockState());2 J& H1 D+ L- T
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
) j% o0 a4 ]3 M# Q' l3 [ - };
3 X# V% Y$ G7 c% N+ C - function onMessage(event){8 `; j* v+ Q# m" n3 e
- console.log("onMessage");
/ e, A! H/ c5 E. U: x - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
1 _" r- r2 c8 x, @/ \2 D; l, O - };' j: ~8 Y$ ?& y2 u# f3 U
- 2 _* @& I) k- ], B1 o
- function onClose(event){
; \% b3 o- P, O& R2 f) f - document.getElementById("msg").innerHTML = "<p>close</p>";1 q& M) m- e" }6 s" `- v
- console.log("close:"+sockState());
, S' c( w9 f" i% l; r - webSocket.close();8 C. H( A) @' U/ [0 b
- }# C/ N; V. g8 S$ p; _
- $ j$ \4 P9 m0 e4 Y3 F" k
- function sockState(){
0 f/ i: T! u* o. S- E - 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'];
8 l7 I1 I* U) g/ G: ~' y' t9 X/ X) g - return status[webSocket.readyState];
& I# K6 l) w5 n5 y3 F - }
( g/ v4 `6 J5 s M -
& G: `0 ~0 m2 Q+ j, Q -
# P; B' K; t; q/ {, S4 A4 F -
7 Z* T+ \5 U/ P( _ ?9 F4 z - function start(event){
8 p& Q8 a# P$ u7 Y8 O; r2 F! f - console.log(webSocket);
# j% Q/ |9 R$ h; x6 ^7 a* C3 r; A o - var msg = document.getElementById('text').value;& c4 X7 }3 ?, c- A
- document.getElementById('text').value = '';
. G# u8 N) t4 a3 B - console.log("send:"+sockState());
/ t9 }& v* ^4 t: V - console.log("msg="+msg);
" w r8 A& `7 B+ g - webSocket.send("msg="+msg);
: u3 o! X( P; l2 c2 @3 \ - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
9 O$ i. ~' M4 G' D - };. B: T$ a% B& J, y" O s0 O
-
* p$ t; X! V3 u/ \2 \1 _; Y( D - function close(event){& w+ _7 w3 ~5 w/ b* e
- webSocket.close();
* ~8 @2 @" O. E1 F# Z( x$ @ - }
* D4 I6 v2 I8 | - </script>6 Z% `; N" v# d9 K2 d( F( f
- </body>
2 ]' W( Y, \5 [6 w5 E* j1 M1 l - </html>
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