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php实现websocket实时消息推送
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SocketService.php
! l% z" a1 q& D$ Z; }0 a1 `3 b5 B2 @- <?php
8 D. Q( Z! q; c9 p7 } - /**+ @+ F( N$ {( n$ ^' T7 y
- * Created by xwx2 }. _. Z6 J, v
- * Date: 2017/10/18
. J3 C: a5 q; l - * Time: 14:33
: x1 l! n6 S! {! V/ S3 A% n - */2 S* q2 h! r: M9 n! c
-
, q$ ?( k- u& Z2 h' r( x - class SocketService9 \! w( ~; d" R- Y: I
- {
# }3 ~. [( |/ z - private $address = '0.0.0.0';+ f- @) v( c. W9 l: ^6 {
- private $port = 8083;
- s( a, j" Q+ k: {: L* N: ^6 G1 b# J; f - private $_sockets;
, O/ u) F; ^" P+ {5 K+ Q" g - public function __construct($address = '', $port=''): G$ x4 Z0 h; E0 I5 K9 k
- {
0 T9 z* [; y. i1 v4 T" q - if(!empty($address)){9 V/ J2 N) h3 S$ F) F- f% ~$ O' x
- $this->address = $address;5 Z7 V% _- `/ | \
- }6 [& n6 i: w& }: A+ \' r( J
- if(!empty($port)) {) h7 L6 i/ ~0 |% W5 k6 D7 ^3 f1 j
- $this->port = $port;# Y% d, o( e1 r* B. R- r
- }8 H+ f/ A' P1 T+ A9 ~, {
- }% Y$ S+ [# W1 T5 q
-
. f4 f' _" z/ u# I5 ]0 S - public function service(){
9 {, l4 P( O0 p6 K6 ]& K5 { - //获取tcp协议号码。& m7 d. G' n/ H6 N# W6 g, L1 s
- $tcp = getprotobyname("tcp");/ `# D) ]+ m- p( m
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);2 l- q- b! ]( J! q
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);% y; {; F9 v% V6 Z) ~! V/ _
- if($sock < 0)
, ?$ g2 s+ g6 e5 I) b - {/ @* N3 o8 ^$ T7 V& E/ Z" w
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");( `' h: _! R9 g& e8 a1 j! E) F$ R) M
- }9 b5 r/ K8 w6 }: l$ F
- socket_bind($sock, $this->address, $this->port);, \# @* d. }6 w- B5 P2 |" p
- socket_listen($sock, $this->port);2 p2 w" U" K! i0 Y5 S. W N8 X7 b! s
- echo "listen on $this->address $this->port ... \n";
4 x6 v* m/ h+ W; N& P# g - $this->_sockets = $sock;* C6 p: n5 |; ?5 d* ?
- }
0 H. t4 V' M$ E: A) n -
0 S- u1 v+ N. b8 ^ - public function run(){0 w& E0 {# y1 L8 v' m* `
- $this->service();- ?2 c" T, A$ a" P' b8 o& H0 D
- $clients[] = $this->_sockets;
/ ^6 [( A# E& l4 `- _ - while (true){
. v& D/ J9 I3 H - $changes = $clients;
8 p6 T s) V# s! e" x - $write = NULL;
1 a, o3 s- I \5 x' ^" Q - $except = NULL;
0 N+ h0 `) I1 ]3 [+ z& ^ - socket_select($changes, $write, $except, NULL);) |! g8 Y# O! j7 k/ A7 v* e5 l0 K7 x, @
- foreach ($changes as $key => $_sock){, M b; T1 Q; l0 z
- if($this->_sockets == $_sock){ //判断是不是新接入的socket
- G2 S& Q$ y& Q0 b* t - if(($newClient = socket_accept($_sock)) === false){$ @- r& T' p8 P0 ?5 Z6 {) L
- die('failed to accept socket: '.socket_strerror($_sock)."\n");( U) g" m* |* _* H
- }
- @+ n0 _- J5 ~/ L" B, v6 J: } - $line = trim(socket_read($newClient, 1024));$ s) N* D; y8 C0 F, @: [
- $this->handshaking($newClient, $line);
6 a' n) _: U! B - //获取client ip
+ z3 k- }: E- l - socket_getpeername ($newClient, $ip);" K$ w/ u- m3 C* ~
- $clients[$ip] = $newClient;1 s; h2 N" Y/ x: |9 I/ @
- echo "Client ip:{$ip} \n";4 I1 {% e# S" g5 l- \
- echo "Client msg:{$line} \n";
; E* ~: o. s( y6 ] - } else {
( k9 K5 ~$ p: j' b- D' S$ [ - socket_recv($_sock, $buffer, 2048, 0);
( p+ s0 r6 W' s" l - $msg = $this->message($buffer);
% y# K( {+ K4 I8 ^ - //在这里业务代码8 T- x+ U% v- ~3 q8 i
- echo "{$key} clinet msg:",$msg,"\n";
* ?% B2 o& J! n4 j* l. M - fwrite(STDOUT, 'Please input a argument:');0 {1 p) ~7 W5 _9 \0 v( `/ r( a
- $response = trim(fgets(STDIN));0 V/ j6 } Q8 F8 c% g
- $this->send($_sock, $response);
' I3 T1 R, j( r- F - echo "{$key} response to Client:".$response,"\n";
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- }
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- }
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- /**+ y/ D2 e( n! B% `, l8 W" Z
- * 握手处理
* A7 u8 @8 g) c& P7 v - * @param $newClient socket
- ]1 x" A5 b. [7 D5 v ~ - * @return int 接收到的信息& b. Z, N6 U* L3 o# l6 e `
- */' ]6 d! o g# s3 M
- public function handshaking($newClient, $line){
4 R* X3 J: V/ F1 ~& R# u( C% V -
+ A# |* l V6 t - $headers = array();
' W7 o1 D5 U9 K P0 a - $lines = preg_split("/\r\n/", $line);
& O/ `- j& y$ Y - foreach($lines as $line)
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- $line = chop($line);6 F5 A0 ?- Q: Z+ \# T- j
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
- @0 l9 f0 u% v* u, }" L - {
. G3 h% d% |" p& A/ L! k - $headers[$matches[1]] = $matches[2];3 N% P# }' {1 b+ x6 ~7 w! w
- }
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- $secKey = $headers['Sec-WebSocket-Key'];6 r [+ A& { h/ W
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
+ q" }5 d+ N1 {8 R- b) v - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .% O4 ?; `; A1 m! A7 _# M
- "Upgrade: websocket\r\n" .
) m7 h c9 ^, h; b7 \. ~( q$ k - "Connection: Upgrade\r\n" .
/ L8 R, w% @% a; t# T4 U - "WebSocket-Origin: $this->address\r\n" .$ G- F/ Z% R# x
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".- c2 X& J6 k, @' Q
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";( v1 ^" Z0 o/ |/ ?2 ~0 z0 ~7 f7 L
- return socket_write($newClient, $upgrade, strlen($upgrade));
; N& w+ n9 i# Y. M! N' F - }
- q& n! V, n! i( f7 d v$ N1 R4 M -
4 ?( K. Z: o( m4 J' [ - /**
0 c x8 R. |) ?! F2 w8 X - * 解析接收数据
5 D( l1 z" z; C# v+ c; x - * @param $buffer) _7 B; O/ k" s) K E; Q2 A/ _
- * @return null|string- J; V0 S# w0 q0 k! s
- */
3 u. O, R! K6 f0 R# p - public function message($buffer){- F# f4 c( D& q( ] P' W/ i3 A
- $len = $masks = $data = $decoded = null;5 w- T& S8 [1 G. x
- $len = ord($buffer[1]) & 127;- P( j; p/ f( d% s1 a! E
- if ($len === 126) {
$ V1 u, m8 p# c. I0 V - $masks = substr($buffer, 4, 4);
( `0 P y0 y0 A3 c1 y - $data = substr($buffer, 8);
3 p1 F6 l7 L8 x0 G) c; i - } else if ($len === 127) {) q8 t/ T1 G2 k
- $masks = substr($buffer, 10, 4);3 f* S1 m: h# f8 W2 g
- $data = substr($buffer, 14);
& U7 L6 T/ p$ d( |+ B - } else {
. }1 [3 B- X" d - $masks = substr($buffer, 2, 4);% V) E# C7 p5 q- u$ t7 r1 _
- $data = substr($buffer, 6);
. o! C& ]: c8 V( q4 H! L - } V! r* s$ W: p& i& Q
- for ($index = 0; $index < strlen($data); $index++) {! K8 f8 ?! T+ U) p, Q! u
- $decoded .= $data[$index] ^ $masks[$index % 4];
0 k- i# _0 k; d& ]& l - }
; W0 q& D8 ^% i - return $decoded;3 K0 w/ ?: x/ e6 l/ b" E
- }
/ }. M# S" k2 x- V8 L& F -
+ J1 W) d5 w$ ]! b; D- s - /**7 b4 m/ _. q- k8 P# @! T) I
- * 发送数据
7 N/ i# |! K* ?% ~( [1 M - * @param $newClinet 新接入的socket
7 w8 L( X1 ]+ c; h( p - * @param $msg 要发送的数据
% H$ b- f- Q$ \; G) r9 h - * @return int|string
$ Z, y8 r; a/ ^ - */) c/ K/ |" a' a3 X
- public function send($newClinet, $msg){, x2 l+ m8 @! A! o
- $msg = $this->frame($msg);
- v: Q5 E1 d. M9 }! V7 S( e( F# w7 N - socket_write($newClinet, $msg, strlen($msg));
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-
+ {5 e9 u& W$ L3 X' @% w - public function frame($s) {6 ~4 ^" ~* L2 R9 C- G) _! Y% v, @
- $a = str_split($s, 125);
( A; X8 Y4 h I1 p2 J8 D - if (count($a) == 1) {
: N& N) n% K& w3 h* Q1 C - return "\x81" . chr(strlen($a[0])) . $a[0];) H" W: f9 j7 K- o, r
- }# c1 s$ Q* M' o! \) p8 y
- $ns = "";
! \3 C7 g0 X9 Q" U - foreach ($a as $o) {
9 v% q8 ?3 [, N - $ns .= "\x81" . chr(strlen($o)) . $o;
* s! a/ T" I0 J0 k" ^9 o3 H - }
- D9 Y# B, d5 Q5 N( E" n - return $ns;4 T5 W x+ H% a0 h& v4 z( w
- }4 j. k) x4 ], y
-
6 Q1 i& H$ _, G3 Z& \ - /**
. h* i, H) x- S( M - * 关闭socket5 z" w$ s6 a0 p$ G5 B4 ~
- */) d! _2 S* J; P9 Q2 X' w7 n
- public function close(){; C3 z& N& Y- B6 J: C) [
- return socket_close($this->_sockets);
" }6 [+ C$ @. y5 I1 _! R0 @3 R/ o$ } - }4 |( K* G, r* M
- }( {& E8 k) k4 Q0 d) e. N3 l% y: r- S% N
-
. ]% J0 c% p9 l; m& @ - $sock = new SocketService();0 x! R/ f$ R$ e) |
- $sock->run();3 h/ B# N4 E4 C7 ?( i+ N( }( N! D" B
- & L) a! M/ x: [/ ^$ k
复制代码 web.html0 P: e( c! q% v( B& j8 v
- <!doctype html>
H3 [: }4 Y0 @# I - <html lang="en">! W" q: j4 A4 ~$ h! G1 c
- <head>2 j2 N0 ^. p, k t8 k v
- <meta charset="UTF-8">( b1 ~$ I# X9 H$ M2 E1 @
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">7 f/ p* { T$ A: s
- <title>websocket</title>1 ?) \$ d& m+ n" a9 i% U
- </head>
+ k9 W1 D! ^- b4 \7 q( @ - <body>
6 k( G, Q5 ~/ E; [ [ - <input id="text" value="">
4 M6 b p5 k" p6 ?1 ~ - <input type="submit" value="send" onclick="start()">
+ v* r8 \' u; \0 x3 M" S8 s! } - <input type="submit" value="close" onclick="close()">
8 t& Z e" Y' Z6 P$ C - <div id="msg"></div>7 E% M3 I8 c0 C( }# P; r
- <script>% ^, |. _- ~# V
- /**8 t6 _9 w" _: O6 s" f% ]+ X! ^
- 0:未连接
/ M3 `! B7 J/ S/ { - 1:连接成功,可通讯3 q9 j, ]0 c# K$ M- B: y% a
- 2:正在关闭
+ O, o2 r, B" H* A# E+ |" @0 O" s - 3:连接已关闭或无法打开
+ B2 x+ b! |9 @8 i V, V6 y - */- O4 V. o; I# a* U' A' Q
-
+ n* k8 q$ x& E# d/ H - //创建一个webSocket 实例$ _# u; q' B1 i+ W4 |( c) V$ V
- var webSocket = new WebSocket("ws://192.168.31.152:8083");; M6 a v5 K6 @% k- u" I4 W
- & @5 T5 \2 z% D, e# E) U0 H$ |% _: Q
-
5 ^) b- k7 n" Y' H, E - webSocket.onerror = function (event){
: ~, C( [8 {/ B# @& n" u - onError(event);0 g: n& C, t4 e% s1 F
- };
/ \% y0 s; t8 `) [) ~6 J - ) y7 Z7 Y8 i0 D; F3 G
- // 打开websocket0 T0 Y3 |& P# J D5 L+ Z# Y6 z$ R
- webSocket.onopen = function (event){0 E- n! L: j3 j4 P9 h% K
- onOpen(event);
- k/ A! |! @) N6 a1 L- S( C% O - };
- P0 x6 B* R) C% e -
1 v5 }4 N2 Y* I4 M - //监听消息
' v* v9 [" s" q2 S p$ N) \1 e - webSocket.onmessage = function (event){, E- K1 E, i: j1 `# t
- onMessage(event);9 Y9 [' S. R: }0 G8 h
- };
& l% V: L; j- [6 t: W3 J$ R! ?5 X - : |( b# |: b, ]
-
4 j+ P) Q9 w& U# ^) | N A6 Z" n - webSocket.onclose = function (event){
( L1 b# s! {- B - onClose(event);% a# s6 ^8 ^+ `. G/ I
- }# X+ u/ I$ k2 c1 l% z# }* D8 g
- 1 I6 I; [2 V4 V2 J$ o
- //关闭监听websocket
% ~, c; X/ X8 m% o4 q, b - function onError(event){6 T. p- _, `- L: Y- q. V
- document.getElementById("msg").innerHTML = "<p>close</p>"; G. r, R5 [& t6 f
- console.log("error"+event.data);2 Z) `. b8 D% p) \6 q& {4 a
- };( R8 U( K. \/ o2 g
- 3 e* j: o7 t5 Y% n( J8 f
- function onOpen(event){9 w6 L- A# ?& E. ^. ?
- console.log("open:"+sockState());
- I( W; g4 N! K; a - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
3 c% A% \9 e' g( S4 | - };6 o k* S" ^" M9 N+ Y
- function onMessage(event){" C, c& s; `8 c# C
- console.log("onMessage");
# I% V1 s) S, a8 i3 X' a - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>": n- E" o! X9 c8 Y; V2 h7 l
- };
9 t0 |+ \8 }. C. C% H! l& c - ! w, A9 x% c3 ]' d% o
- function onClose(event){
O% N F2 p! v$ G7 q - document.getElementById("msg").innerHTML = "<p>close</p>";2 M4 }4 K2 c9 c1 h0 k9 ? [' _8 J
- console.log("close:"+sockState());& q# g0 R2 n: @0 B: ^8 G
- webSocket.close();/ K+ F0 M& _; Z
- }5 {$ t/ ?6 ~- j; Q
-
# p0 L. }9 x" v, b: v9 U$ N, i# ` - function sockState(){
2 W! K" m$ N5 ^* E& L- T) _ - 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'];: o M, E# I; w2 P5 b A! q
- return status[webSocket.readyState];
: b5 Z: E8 E# c$ ]0 F - }
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-
( p! {! T+ J& C9 G - function start(event){0 {" J/ u: H4 T" A! Y
- console.log(webSocket);
8 H/ i' U6 r8 T5 o* a6 e - var msg = document.getElementById('text').value; [7 y# h' }+ c( e& @% P p5 O
- document.getElementById('text').value = '';& e9 V- w, S% Z- D
- console.log("send:"+sockState());! |- f: }4 o1 v8 m% F1 \
- console.log("msg="+msg); m8 L* H5 K5 Z5 S2 ?5 v
- webSocket.send("msg="+msg);
, v8 k- k7 y# Z ]7 p6 v - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
' z9 a5 w0 P0 B3 u2 b - };
4 F# K) X( A v2 \; f9 m) t -
$ @3 n X! T3 M5 B4 v - function close(event){
+ O- {+ ~# o7 k5 G - webSocket.close();6 r3 C# r& K2 x) ^/ a' ]
- }
& S/ O+ t# e; p/ `. r - </script>
& `$ X# t$ e K' t: o6 m5 e - </body>
, M5 N/ F7 o4 z+ d" K, ]! [ - </html>
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