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php实现websocket实时消息推送
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SocketService.php3 l* |4 j0 N$ m" h
- <?php0 B9 T D: p9 C# y
- /**
3 s" r/ G! {! v( u: ^8 |# q - * Created by xwx7 I6 g0 B) c% _+ G% J4 B) {$ Q
- * Date: 2017/10/18# P' P5 u) q& q' |) X+ ]
- * Time: 14:33
4 ?/ W) t" d; c1 o* W7 n' e - */7 q6 Z4 w9 d* [; u9 d- v; z
- ) m! w( N4 m- F' ?9 U, K
- class SocketService
8 J1 Q# Q- n3 i - { w @# O9 `% r1 C
- private $address = '0.0.0.0';' u0 q% B; s V+ Q# o0 s# P* B
- private $port = 8083;
) X( H6 A! x1 y& U2 J3 C - private $_sockets;8 |# q: V; g( V$ Z
- public function __construct($address = '', $port='')
, E" p0 X. Y+ W( y' F+ [ - {
0 u1 F3 H3 t! m' s8 y, N - if(!empty($address)){
, l _4 U: L+ _, H - $this->address = $address;6 A0 G$ U- V/ N! w% A, C+ e
- }7 o/ M5 U$ Z- ~+ c8 k) x
- if(!empty($port)) {
( @( X4 @/ W- R- a( c+ l - $this->port = $port;
. A$ G/ V* Q m - }
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-
+ R8 h9 t( Y# P& V j7 o - public function service(){: P Z1 A& k1 h9 l
- //获取tcp协议号码。
3 l" |& ?6 X* W( q$ ~9 D. k - $tcp = getprotobyname("tcp");1 p0 {0 X0 m: C: t
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);# C4 W, Y5 a0 d5 x+ [" Z& Z
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);& B2 D+ q" r% h- `2 j( V2 M$ a
- if($sock < 0)
4 y @, D0 Y# _8 @6 s - {: {, d8 j& g8 x$ ~+ b `) T0 l) Y5 J+ Q
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
- H N' o/ N+ p* z, A: G - }
1 t |: U' Q3 I( H/ t3 j - socket_bind($sock, $this->address, $this->port);% ~3 H; `% u- I7 A! q
- socket_listen($sock, $this->port);
( S/ R7 m/ G' j* E z6 s7 ^/ g8 v - echo "listen on $this->address $this->port ... \n";
/ @/ p1 n c3 }" f5 `4 G - $this->_sockets = $sock;
S* d! T$ m/ A3 G/ ` - }$ z0 G# D0 w$ T3 z
-
# v2 S$ r1 X. M7 }; T! q" L; X - public function run(){
+ r! q1 ^2 e7 w% V9 Z5 ?) g' x - $this->service();
) Y, I! A( Q4 I6 m - $clients[] = $this->_sockets;
% k/ N( c& m& J* v& Z B - while (true){
3 a3 @- }9 q' {9 G2 Q - $changes = $clients;- L1 p9 s( t0 F7 m W
- $write = NULL;7 `0 c1 T& U$ F- q
- $except = NULL;6 h3 s" \8 T0 q
- socket_select($changes, $write, $except, NULL);) y2 G+ z* D! ^* Y; i/ {
- foreach ($changes as $key => $_sock){. [$ k/ h# C0 m0 ^( m
- if($this->_sockets == $_sock){ //判断是不是新接入的socket
# R1 O5 M4 d, G0 j - if(($newClient = socket_accept($_sock)) === false){
1 o/ _" ]: X7 Q9 t+ i3 B9 r - die('failed to accept socket: '.socket_strerror($_sock)."\n");
$ `- B4 G, Q/ j3 k( U$ ~! _ s - }
0 b6 ?* i8 L) x$ F/ f0 h% ^1 Z1 Q3 u - $line = trim(socket_read($newClient, 1024));
) r! V' W: e P# A6 o2 x% E2 m - $this->handshaking($newClient, $line);
! w1 N- a. H8 t, t6 ?& c; P9 a- t - //获取client ip
1 Z% ^! V: P l% { - socket_getpeername ($newClient, $ip);
0 `3 h) g* n1 e& ] - $clients[$ip] = $newClient;
" W2 N# G) O1 D* `( z* G/ Q - echo "Client ip:{$ip} \n";
, r; U4 E( S$ j' d w6 N - echo "Client msg:{$line} \n";7 j: Q, l# s4 v$ c o
- } else {" B" r( E& V" B5 ?
- socket_recv($_sock, $buffer, 2048, 0);2 P1 G; o- w* }8 i% N9 I/ m0 H
- $msg = $this->message($buffer);* V" z6 C! d H$ g
- //在这里业务代码
* p+ t3 g3 z: X: T7 l - echo "{$key} clinet msg:",$msg,"\n";
4 [& W* {1 K+ ? - fwrite(STDOUT, 'Please input a argument:');' ^0 m9 V& D, i& B
- $response = trim(fgets(STDIN));2 c; m+ B0 Z6 T. Q% t
- $this->send($_sock, $response);% M. b* v" b1 T& D+ X+ ~$ M0 F
- echo "{$key} response to Client:".$response,"\n";& ^! f9 [. R. t( T
- }
" i$ L; L2 Z' }9 q1 g+ u- }2 \ - }
/ [ i( \- H! _! {* u9 _. Q - }
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-
: L7 @/ k) Y# n4 v, q - /**- f* S, p. \# O, q- |
- * 握手处理* _3 K9 O9 v" M" a& s7 h3 H9 h! {
- * @param $newClient socket
6 } i# q4 z# t1 I8 f - * @return int 接收到的信息/ s6 k; @. q- W4 z! }+ a
- */( h, e3 |4 J9 h1 F
- public function handshaking($newClient, $line){
|! f- ~; ~+ l2 e$ | -
/ d3 @4 t, i# s' x) ^' ^. F( E# |- ]& R - $headers = array();
# J x+ A8 w$ R r - $lines = preg_split("/\r\n/", $line);
+ c- ?8 h" f& d( A - foreach($lines as $line)0 g4 q; X1 f( M
- {
- V& g$ S8 K+ [( T) C - $line = chop($line);) Z4 A2 M4 k9 Z# I% R
- if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
: n. v7 S) K* t ]/ @+ Q& w9 X - {
2 r! d( t* Z9 h - $headers[$matches[1]] = $matches[2];. R! J" q$ w4 Q
- }$ R+ f2 l; l- I* [1 x+ U
- }$ D+ ^* a% B2 O
- $secKey = $headers['Sec-WebSocket-Key'];( Z$ Q( c5 d1 q4 R/ f. P' i
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
& C. Z. c( P: C- P2 D7 [; h - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .% k$ _8 n h- x
- "Upgrade: websocket\r\n" .) k* D2 {+ C9 @, [+ v" w3 J+ h
- "Connection: Upgrade\r\n" .
# r" p0 o9 m# ]) A" } - "WebSocket-Origin: $this->address\r\n" .
/ W9 b5 H8 a" U( t4 S- q+ q - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".
) g: T& V8 ], E' p4 X - "Sec-WebSocket-Accept:$secAccept\r\n\r\n";& ]9 S. }/ q$ `( g. ]' L+ _
- return socket_write($newClient, $upgrade, strlen($upgrade));( e9 B3 f9 @+ Y# M/ @$ q! J1 q* O
- }
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- y, D7 G a. `/ I( l- Y' G - /**8 M; l B& h1 Y3 f% }) {
- * 解析接收数据% ]! [% h1 V' l
- * @param $buffer% O z8 E8 h7 ]
- * @return null|string1 a4 F& r& ~7 D7 S
- */
7 U% |8 y/ \7 { - public function message($buffer){8 [( u( Z5 v, p/ M
- $len = $masks = $data = $decoded = null;* b/ a# J, C: q. i6 R
- $len = ord($buffer[1]) & 127;
3 q' O9 Z$ E1 V1 d+ N2 K7 W$ S - if ($len === 126) {
; s [ S9 y1 L6 h - $masks = substr($buffer, 4, 4);# z9 g% C8 J- }( D
- $data = substr($buffer, 8);% B) [8 h7 w& S
- } else if ($len === 127) {
9 I1 U& l: ] M7 g - $masks = substr($buffer, 10, 4);
3 |* S A" P! p5 c: ` - $data = substr($buffer, 14);
' T! ] p3 n1 F2 v4 J3 ~ - } else {) J; c/ Z% Y" }/ d$ c) {0 S" ]
- $masks = substr($buffer, 2, 4);
- H3 L4 r/ [. l5 m3 h* a% g - $data = substr($buffer, 6);
% B2 R/ O4 F' j& N0 D4 y. @) | - }
( t" a( J, v2 n" B$ m( R - for ($index = 0; $index < strlen($data); $index++) {
- N9 z8 @1 g: { - $decoded .= $data[$index] ^ $masks[$index % 4];! m% O; }- g+ K+ F+ {0 a
- }
) ^2 g% b! y7 [ - return $decoded;+ ~( m) e8 M# U$ M9 Y- \
- }
1 b" F9 i1 ?; e1 B - , T4 L5 J; N, z3 \: d
- /**
' @% n0 g& u) ~+ z( \: C6 S( H - * 发送数据( k2 ~* D; y; M
- * @param $newClinet 新接入的socket
; M+ ^/ _3 b9 @- n; e/ q3 O - * @param $msg 要发送的数据' K; G4 U0 u, S* @: s
- * @return int|string
+ X3 @" w/ a j. A - */& W2 U. d1 C s% H5 o4 e9 T
- public function send($newClinet, $msg){
- }% | K; `( Z: x& Z& ] - $msg = $this->frame($msg);9 K2 W& c" r5 U. ~
- socket_write($newClinet, $msg, strlen($msg));
: `: H# o' d" ]% p8 `, m" W - } r3 l( N4 n2 |3 K" B* j% U
-
" o- m, t4 ^/ W" G* Y5 {8 i. g - public function frame($s) {
: K v0 R8 L! e, ~3 S - $a = str_split($s, 125);
( G) h) e& |" \4 J1 n7 Q! ?; T - if (count($a) == 1) {
" v' B. d- ^+ d6 `5 b; Z - return "\x81" . chr(strlen($a[0])) . $a[0];; U' Y) S/ W& E% B J/ b
- }
) V8 @- t$ Q+ f% i - $ns = "";
t3 c5 r, T' m; d2 I9 {) f - foreach ($a as $o) {
0 A! S! W; F: x3 |& n, f* x L - $ns .= "\x81" . chr(strlen($o)) . $o;
( r+ o7 k6 Y- E% q - }
. Z' c0 ^ o0 V5 C - return $ns;. j$ I; \( {5 Q' K6 u4 M' m
- }+ Y5 q% o' n. e, ~
- , Q' e: |/ p- B) ?5 r: S* \
- /** G( W; a' s0 i4 E- h* g
- * 关闭socket2 I! ~* b0 U: l! f- l
- */
5 r, N0 M7 f5 v. D$ J- O - public function close(){
: |8 |3 N7 z$ b6 X+ z" C - return socket_close($this->_sockets);
2 P1 r" K, T' S$ i! Y4 X/ k) F - }
1 ^; k# `1 f8 n0 I- E/ E; ^0 M6 t% n - }
1 l; P( T9 U9 o) E -
. I& f2 y8 q& ]% u4 L+ }& m: ] - $sock = new SocketService();+ z) \2 Z- g' U. g! `0 G% g, T
- $sock->run();
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复制代码 web.html
) o: ]5 y4 }- |- w5 r4 X- <!doctype html>6 l6 h9 l) O n, X9 e0 ]3 x
- <html lang="en">
# F) w7 ]: \& ?5 S& c L y+ C& ^ - <head>
* ~, t' S- ?" t9 D - <meta charset="UTF-8">$ [ c( H" t5 i5 L. ^6 M
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
; [6 y# n: |7 ?' p - <title>websocket</title>2 a; g' r- O0 X( V- G3 Y
- </head>
4 K6 P+ t5 x0 z9 F) `* J% e3 o - <body>3 M8 f, }' P4 w+ C: ]
- <input id="text" value="">
) C' e; P8 q8 ]3 J& U7 Y9 n - <input type="submit" value="send" onclick="start()">
8 ~% y6 C4 v' U; G9 O3 h2 q - <input type="submit" value="close" onclick="close()">
! O8 U# {: _. W - <div id="msg"></div>" c5 Z8 q3 Q" v/ H: ]
- <script>
1 f h; H: V1 J1 z - /**
& `. ^1 X0 e- {/ ?' i5 H - 0:未连接
! m" h5 s7 S- H( O8 z, m - 1:连接成功,可通讯# }7 T J7 P7 `0 K9 p( a0 q
- 2:正在关闭
2 y$ z4 m, @4 q, ^$ X - 3:连接已关闭或无法打开% p) Z) R$ e, b$ j$ Z4 f1 L% {
- */
" `4 [& l1 B5 g: R u0 S6 D! G - ! E' \9 R: T' Y- X* y0 D
- //创建一个webSocket 实例9 a: L1 y* Z8 v( {
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
; Q3 c; {0 I7 ~; z" \5 P -
5 ]' H* ~$ V; c7 Q0 t; n. l$ A9 V- w3 P# V -
3 R0 }8 n) f7 g4 E* T3 I - webSocket.onerror = function (event){
- l# y/ E# ^! @* U - onError(event);
# H4 I/ g2 N5 a$ x! K - };
. I- m/ D' y; h6 v( p5 \8 a -
2 _# m/ o6 G5 e% s, D% X% } - // 打开websocket4 m4 t9 i/ Z. |- ^2 f4 p2 F
- webSocket.onopen = function (event){; b" M* r0 L# g/ x- f+ R' f
- onOpen(event);& i4 F. b& i: u6 U4 N
- };
- A1 _" Y9 M0 m/ }! b0 ^ -
) ^) T* }3 C# b* l. J - //监听消息 h, i: ^" Q) @ C# S
- webSocket.onmessage = function (event){
2 x; b$ \* v0 H: e' c$ q( Y5 _4 ~& M - onMessage(event);9 P% M: P4 @0 K8 z1 Q
- };5 y/ a9 W0 t }& g: z( R
-
0 @; U5 r% E) H. O. P - 3 `8 Y- J+ _, F" X$ X: V' [! N% ~
- webSocket.onclose = function (event){* D+ O, W, U! G! Y% @8 \( J
- onClose(event);. v. H: X- {3 R0 V$ ~
- }/ C) Y" O* a" e
-
3 T6 K. g; f5 e$ K4 a3 j' H - //关闭监听websocket
$ v1 g3 U, o+ ]& u - function onError(event){6 f+ Z+ }1 R/ k4 m8 b6 m8 ^
- document.getElementById("msg").innerHTML = "<p>close</p>";5 \7 N, j' t- @' U) W# x
- console.log("error"+event.data);! X. A5 X- O( b y' p* b
- };
2 O! A4 l) y6 I3 h4 X - 6 _2 C2 `( S0 s! O: J2 t' J& D
- function onOpen(event){
" K$ [7 z5 G0 l7 y- u - console.log("open:"+sockState());/ O B! m- i* W2 Z7 g# e2 b
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
: J! k0 n/ Q8 \0 Y- W, @" N - };
' o- H3 m) J% ?9 r6 ?4 Y4 z/ a - function onMessage(event){3 |& _" g" A( \' q) H* }
- console.log("onMessage");9 W4 o5 a8 J. [& m5 P0 H
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"2 r4 l+ I3 K% n. K3 T0 [) ]
- };
* k; ]* M2 p3 z1 F P! q -
2 @" y6 m4 r, K5 a! y$ \- ^& C - function onClose(event){
- r% q- S$ w# {9 E - document.getElementById("msg").innerHTML = "<p>close</p>";
4 t+ h7 x( l% ]& H2 Z. g" z" O/ v - console.log("close:"+sockState());
' e1 F! p5 P+ \* i$ Q3 i - webSocket.close();
' ?5 S! b* W1 m, Y% P0 D( @ - }1 T+ D; }+ c5 c4 J* @' V; n% W; m
-
7 P* F1 V0 Q4 J2 l - function sockState(){
$ R2 k6 F; C2 q7 D6 w) M2 Z- } - 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'];
2 x; r: ~" Q' }$ M0 r$ u - return status[webSocket.readyState];7 R$ B8 z# B: }+ a/ W8 Z! [
- }. z) u3 f. S1 s" _# c
- * R: E) P/ I- ]: u
- ; m5 Y# B8 U/ Z: V9 J' T* i& Y
-
' T, W9 n3 D& e: f7 w% U7 i# p) E - function start(event){
$ ^' y1 _& `5 K2 y! S y8 x - console.log(webSocket);
* f) y; m$ J2 x - var msg = document.getElementById('text').value;
2 j0 M' r* I9 T7 v+ F3 E3 e' L# l8 e7 H - document.getElementById('text').value = '';$ w1 Z! m5 p: K+ j/ M0 [
- console.log("send:"+sockState());
2 v: M. C7 ]6 N& w1 ^% o1 A3 i: z" v7 R - console.log("msg="+msg);
$ b% d0 k# G! e# y. I0 }5 x' r - webSocket.send("msg="+msg);
) H$ G/ I' j: P3 D' D- }& c - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
' k- v# _6 u! k% Y2 @! O( H - };4 t6 W$ }2 s+ X, A0 n' N
-
8 J' g7 U, U [" ~ - function close(event){ a/ j1 V% i! r& O) }
- webSocket.close();- z9 _, O* J. y
- }. }1 z4 S8 ?) J4 w
- </script>% d' p9 T( ~! s! T
- </body>1 r1 K9 m, Q" {+ I4 R: C, h
- </html>
复制代码
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