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php实现websocket实时消息推送
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* N/ ]5 J, ^- A' l' s. s+ ?SocketService.php
2 b7 Z3 \% S5 j( e1 x; d- t. Y# A- <?php
: ^$ |$ x4 A9 u+ t2 t) _ - /**
2 x- u0 Y X" e; x# f - * Created by xwx! e9 G. i% w5 }! M. ~
- * Date: 2017/10/18
1 J7 N) y5 Y. u" u# u - * Time: 14:33
4 t! E/ b- f# ~7 y1 J" f; | - */# N4 I: F% Y- Q7 Z, H* q
- 8 @# P" C1 ^2 ?' W7 M0 V
- class SocketService2 j5 N0 X+ d3 I' ^
- {. ?( j7 n6 `6 {7 k
- private $address = '0.0.0.0';; [& n$ o3 u1 B
- private $port = 8083; i+ H2 w7 h) V% S' M/ A
- private $_sockets;
% }* w0 c- F0 G/ d: U - public function __construct($address = '', $port='')
% O# ^! o) Z3 c1 A - {. @4 n E7 k: i5 B
- if(!empty($address)){
, \% b& P* t; G8 Z- z* W2 } - $this->address = $address;
! R9 W0 N f m7 ~' @0 Q - }6 v" w7 c2 N9 Z
- if(!empty($port)) {, z( u7 I; R1 t: G
- $this->port = $port;; X& i4 s9 N0 u; v( i# a
- }
7 z0 t5 q; y s - }1 r" [' K5 c& [) M
- ; T# }7 B% b* i D' i1 F
- public function service(){
, \/ W0 w* z; }1 s- H7 R1 i9 M: g - //获取tcp协议号码。
5 B" m6 F+ C4 h$ F% N# a5 ^4 `# h - $tcp = getprotobyname("tcp");
J3 D' |0 f6 ]" c/ h0 o- w - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
) W9 {! z5 R2 G3 r) v0 e/ s7 y( Z - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
$ U" @5 _6 @9 q) ^1 n - if($sock < 0), l \' S6 Y7 Z: @
- { f' _% Y: T/ u" ]
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");) O' s; h+ Q! h
- }
# Y8 F* \/ ]7 g - socket_bind($sock, $this->address, $this->port);
: f( Q7 v- V( a8 c0 I, T+ u - socket_listen($sock, $this->port);0 C* R. Q) o/ A/ {
- echo "listen on $this->address $this->port ... \n";
! Y/ ~9 s' q- |) Y7 D - $this->_sockets = $sock;' R0 ^- E8 u) @" E; u
- }
$ _; a1 L1 _% F8 z% x -
! V Y6 ^4 H& d - public function run(){" ]" Z6 }$ b. F
- $this->service();+ b |# m0 I, N, ?% H4 P( Z
- $clients[] = $this->_sockets;) X. F+ A& ?5 F5 z8 v' U
- while (true){
, @( N4 U% _6 }' B - $changes = $clients;
! O+ c0 w1 b, m7 c - $write = NULL;3 J" c' Q$ f2 B% l) X9 l6 ?
- $except = NULL;6 [" L4 W, i2 A4 ~9 ?$ {$ U- t
- socket_select($changes, $write, $except, NULL);
, Z% a& M. J0 A3 ` - foreach ($changes as $key => $_sock){
, }/ N% R1 W9 @* i3 d' c - if($this->_sockets == $_sock){ //判断是不是新接入的socket7 x( f6 j" E) Z
- if(($newClient = socket_accept($_sock)) === false){
' o" `* W9 U; C7 k - die('failed to accept socket: '.socket_strerror($_sock)."\n");; h9 J0 g- Y- |
- }2 x0 m( |4 j% D6 f' O, W7 o6 Q
- $line = trim(socket_read($newClient, 1024));2 a5 }) }5 k0 o+ H
- $this->handshaking($newClient, $line);
5 b! z) q% R$ J/ C: B1 H - //获取client ip0 ?5 X) k* @3 Q8 V4 M
- socket_getpeername ($newClient, $ip);
% n' Q* K+ @1 n7 c$ X) ~ - $clients[$ip] = $newClient;1 A5 a; p/ ^! I* a0 z* x. o' @
- echo "Client ip:{$ip} \n";
* O6 e% t1 O0 W( C - echo "Client msg:{$line} \n";
5 F2 e- K( b9 i% r- X - } else {7 O: v. H! _% W/ ]: b# L' ~4 D3 d O( n
- socket_recv($_sock, $buffer, 2048, 0);9 I; m/ M. C+ K& R6 s( m
- $msg = $this->message($buffer);8 w/ Q! S2 E. |$ u* i) F) F
- //在这里业务代码
& {) P% k! M3 b: |( p/ H! }3 e - echo "{$key} clinet msg:",$msg,"\n";
$ e/ M0 S( t$ {0 E" C - fwrite(STDOUT, 'Please input a argument:');
2 r. \. t# j0 e$ R0 {* p% d# S9 F - $response = trim(fgets(STDIN));* a1 {% Q' [8 |' M! P! A
- $this->send($_sock, $response);& `4 O3 n$ H" H9 T0 X( Q
- echo "{$key} response to Client:".$response,"\n";0 M Q: L- U. L) ^) u+ b0 u
- }
* N* R7 N; N5 J' A% @ - }
1 |. @, h6 e7 G# @* G - }
# A% U& _( _1 V - }
- V4 n2 J; X( p - ) s. j+ P' F' a; S; \5 p1 Y7 A8 s0 {
- /**' h r, `3 u- U8 a1 N/ @" [
- * 握手处理$ G8 {* e. D' R3 c% o8 y
- * @param $newClient socket& w. V# D: v; J* a$ M" p5 c. k
- * @return int 接收到的信息
8 y) F& ~3 |) i! z - */
' P3 w/ m$ D% \; A" } - public function handshaking($newClient, $line){7 u; @/ Q2 ?6 W& c
-
1 E; w" [7 o8 d2 C K& R - $headers = array();+ a. l# j8 B- S6 C: N. b
- $lines = preg_split("/\r\n/", $line);0 W$ M4 ]. w& ]' v6 s0 w
- foreach($lines as $line)
/ q1 B) N4 u- R0 g* }2 m - {2 u. Q8 [- }% z p
- $line = chop($line);. V s; m# `/ T z- I
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches)): U' \$ r4 t( F8 B/ B
- {; U' a! a9 e7 K( Q% d
- $headers[$matches[1]] = $matches[2]; I: G9 h( t6 E1 X
- }
( D) c! Y; `3 {) L3 m% K! { - }+ Y9 Q1 k" i( d" W) B4 L; W; h" F
- $secKey = $headers['Sec-WebSocket-Key'];& c6 \' ^! L8 B$ c2 T2 T. s; L& l: o
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
* Q9 D2 f! G. }+ ~ - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
9 _1 G+ Q4 s: t( p6 F3 n$ }5 y - "Upgrade: websocket\r\n" ./ k" r' x/ u9 y" L7 h' o8 B; v
- "Connection: Upgrade\r\n" .
3 D5 B: `! r2 ~! }' Y' X; g, b( I - "WebSocket-Origin: $this->address\r\n" .
# V, `5 a0 Q R3 X' d' t - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".: B* s; t+ p. x
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";. L5 N" w" j3 f( g: d- H
- return socket_write($newClient, $upgrade, strlen($upgrade));
/ }5 V$ v# _/ V5 z0 i/ W - }8 ?3 F. z- A3 T* m% |) J
- 7 S# H/ ~3 f2 {: c: H" n
- /** _. X& u0 `2 P. b% r x, N7 [
- * 解析接收数据' A" J9 M+ H1 I# R. f
- * @param $buffer
# V" o% Y& j, ?$ Y- x - * @return null|string
( Y: {/ W7 |1 v% H+ a6 L" B - */% x- y( h2 K( ~4 g( U# m
- public function message($buffer){
6 h7 _6 K- K: A: Q - $len = $masks = $data = $decoded = null;
! Y; ]2 X4 i4 U/ I u1 d - $len = ord($buffer[1]) & 127;" U& T/ i. Z2 m/ {; Q
- if ($len === 126) {
6 P! `. x+ z1 w4 J% z# g" w c - $masks = substr($buffer, 4, 4);9 N T) l& f9 g5 Y1 |
- $data = substr($buffer, 8);- s* A. l8 j3 L3 ?8 z) M
- } else if ($len === 127) {
% a7 I# ?) B( J) p - $masks = substr($buffer, 10, 4);* _* [9 C* [, s+ _
- $data = substr($buffer, 14);
' J5 z2 V3 `: o' ?8 g - } else {# J9 K S0 N V* w4 t2 M2 T0 ^
- $masks = substr($buffer, 2, 4);
; S: s5 R b/ v7 R& J$ H - $data = substr($buffer, 6);
! V2 m0 R- q" {: O0 ^7 I - }) j7 H" V1 t( I/ v7 T. y. _2 s
- for ($index = 0; $index < strlen($data); $index++) {
. Y) } t& E+ S7 x3 Q - $decoded .= $data[$index] ^ $masks[$index % 4];
3 L+ x+ u& i% h4 T, m2 e - }5 a$ U% q3 a% |+ x7 x8 m
- return $decoded;% b0 B1 _# U- \8 f5 x
- }
: v, D' W& k! ?) Q8 g -
( w* Y5 G2 @! ~1 ~, Y - /**+ F6 n# H9 d2 M6 v) O- M4 K
- * 发送数据! q" O. a5 o( \9 ^" K2 b
- * @param $newClinet 新接入的socket. K; d7 ~6 y- T9 w/ F
- * @param $msg 要发送的数据
2 ~% [- U0 ^$ q - * @return int|string
! ]5 m1 _& Z7 @7 m6 G4 I& k* v - */
7 o( M& u3 p7 T. D8 z" b - public function send($newClinet, $msg){" H- e( w8 z3 _( H# Z' x
- $msg = $this->frame($msg);( x0 c- j" A( w9 Q
- socket_write($newClinet, $msg, strlen($msg));
: V3 n* A, M& ~8 c - }
& h) }* J2 t! r! g -
% X& _8 Z; {! f+ M: C - public function frame($s) {
+ W; C& K" @) C: I+ n! z; J, a - $a = str_split($s, 125);
) ]4 j" _- ]# i6 {; {: x, y7 s - if (count($a) == 1) {
1 c& y6 n" u6 i# {3 \5 E- B - return "\x81" . chr(strlen($a[0])) . $a[0];8 X! z! E3 F# N: Q. ]% a
- }- _+ E- |4 N" X, K
- $ns = "";
- K' R" K) e J! c( ^ - foreach ($a as $o) {1 X3 [! [* ?+ g2 W
- $ns .= "\x81" . chr(strlen($o)) . $o;7 [& R4 t7 X( O9 C! m
- }4 E% j& v. {% }0 N0 K) q; `
- return $ns;. P6 ]1 B# i+ y4 a2 y
- }1 ^: M& I( ~) X* x4 }
- + f6 I, s% O9 p; I3 l
- /**
1 J$ x$ n: ]$ D j* @ - * 关闭socket
+ { Z% \. ?6 q$ }) o$ O8 K1 H: n - */
v! Z& U! t: @& M3 o- q - public function close(){/ _- K3 [4 g1 z) U/ y: }
- return socket_close($this->_sockets);
& [; `6 l; k+ Z5 U, ]% b+ O. L7 z$ }4 U - }8 c5 o: c! z' T/ q. p7 _
- }- U/ |% k& W6 a! y$ c5 _9 z
-
7 G" N; ~3 w; a8 `% h! E - $sock = new SocketService();
) `) L8 V. ]/ i c - $sock->run();
3 z) f- B- M! r3 e8 l
* N3 Z; F2 y. C# H
复制代码 web.html8 ]: M) R% C6 t7 g' U# B1 Y
- <!doctype html>& T+ B% |7 [6 v- t
- <html lang="en">2 |3 y r3 q' ?/ O9 _
- <head>" D& Y( ]! F* a9 U$ B. A
- <meta charset="UTF-8">( c% y% R4 F4 e$ y+ m j
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">, I$ |2 F" m8 K3 u& p
- <title>websocket</title>) M0 Y3 o! C# l5 C8 f& v
- </head>
9 \' J1 O) I$ y7 [) ]$ D - <body>
$ S6 l. {$ q6 e - <input id="text" value="">4 u' [1 H9 k2 A$ T. A5 b$ _- N
- <input type="submit" value="send" onclick="start()">
8 V8 D J, @5 r e6 @; J - <input type="submit" value="close" onclick="close()"># Q& C# j( W& ], `, X
- <div id="msg"></div>6 |; ~- G( k8 a
- <script>
2 M; [5 h) Z j - /**
$ g5 w3 z& B0 j: R$ E! i - 0:未连接
, Z: f2 @8 A9 }4 |9 H - 1:连接成功,可通讯
; `; c4 t' E! u% U" } - 2:正在关闭
# C6 }- i% _- M1 j/ ` - 3:连接已关闭或无法打开 m7 g( S" a# z4 \, {$ B, E' o
- */' K+ }, H2 Y1 E3 H ^6 _4 p
- 3 s3 ^, A3 }4 l8 N: K1 f" ~9 m
- //创建一个webSocket 实例
' m( `3 ]0 G( ]6 E1 v - var webSocket = new WebSocket("ws://192.168.31.152:8083");' l! X$ s3 C. z: `& m% d+ s, F
-
$ W' l6 P: K f& A - , w. s1 \! M# J9 X
- webSocket.onerror = function (event){
2 `# _9 q: ?4 n n$ w - onError(event);$ Y& B9 l* g. C9 b
- };
+ N5 V" O: W5 \+ v$ H6 B - 9 t! B( x# P+ f. w4 F9 {
- // 打开websocket
1 N: t* H. Z+ E1 i5 J- L0 m7 n - webSocket.onopen = function (event){
0 d4 G: g. ~8 o F( O: d2 T _ - onOpen(event);
+ P8 D1 i" o# G5 g& m' D - };: N8 n. W. L% v3 I0 ^
- 6 `8 B% g7 j9 {$ A
- //监听消息
2 I- a7 a. }7 ^" V7 U - webSocket.onmessage = function (event){
+ [/ } M: t% V t& s - onMessage(event);
' n/ ?, @& Y0 J" u' | - }; p. ~5 v* ?( W. j8 h' C0 V
-
" [8 R8 s, `: S- g" x4 u4 V3 o -
$ @) K, G4 |: H) Q+ o' U: R7 w - webSocket.onclose = function (event){
& a8 O6 n% |/ g) F: J% G - onClose(event);
; y+ i' x" C& y9 \- X+ ~1 U: ~" W6 E - }5 n& g, o5 J; t3 Q
- . o0 B" x7 Z1 ?, K% T
- //关闭监听websocket3 U$ @( m& M1 J& w3 K8 I
- function onError(event){
7 t: v# }$ ~# i7 v0 O - document.getElementById("msg").innerHTML = "<p>close</p>";9 S+ f1 j% m$ a L* r
- console.log("error"+event.data);: e1 v/ u: X; i) z3 t9 e w
- };
) u& a s; s3 q8 E7 C - * N, ~+ Q% Y2 x1 |- ?( m& s
- function onOpen(event){
2 }$ k J2 I* E! }/ t0 [, Q& }; x- T - console.log("open:"+sockState());
1 X+ L& d* h8 D- C - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
9 ~# L. A4 E$ h" \. U3 b - };+ G E9 D, M# d, {! z* ]- H
- function onMessage(event){
! y+ @1 F4 x1 s! l - console.log("onMessage");" Z! _2 i$ ]! _' [8 X- z
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
2 i# o8 a2 P7 v - };* [& }( Q/ _# r! e2 ^
-
7 o. x* G e: y! _# N0 V - function onClose(event){; H7 E) ~! G. L$ Z
- document.getElementById("msg").innerHTML = "<p>close</p>";
# p9 g( U- u0 z - console.log("close:"+sockState());
0 d$ I0 x7 l" g/ p2 _ - webSocket.close();5 m# J( b: T! |6 `5 |& y% i
- }
. j. Y! T% }8 D - 4 D1 N1 p4 b! |# T
- function sockState(){
" z7 Y* A. S3 a- | - 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'];
# w7 H! b3 @; {: y% l - return status[webSocket.readyState];
' \, b2 j% ~1 F! p# }: Z - }
2 j0 @1 n" H9 m! L - + d6 Y7 h; ~) r
- * {( S% r2 o4 Z* t3 Z, G
- " a. z) ^7 S* v5 [) n1 `+ g# G
- function start(event){1 C$ R% ^4 H) q; [9 q
- console.log(webSocket);5 x) z3 \. @4 S. z! O. `
- var msg = document.getElementById('text').value;+ ? T6 [4 }2 C( I$ l6 a$ V/ Z( v& Z
- document.getElementById('text').value = '';
, |8 D5 X9 C# q - console.log("send:"+sockState());( x! ~% C! ^# z' Y
- console.log("msg="+msg);$ u. R' u4 a; P3 r0 B
- webSocket.send("msg="+msg);
: O' u1 e! g3 w( C- o( l3 Q4 x* D - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
( T; F5 r3 h2 T, d - };6 Z! X1 z: E+ Z. k; X+ y; o
-
* W8 h$ ^) Z3 [9 r6 H o" T - function close(event){8 i4 X5 Z; t4 O1 O" u$ s3 R
- webSocket.close(); [) l5 }8 }5 g" i5 A; o
- }
. |* m! [* b0 ~/ ]4 C& u - </script>
Z- t( q/ y- M5 W5 |, N - </body>: @" d/ t! G6 g$ s
- </html>
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