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php实现websocket实时消息推送
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SocketService.php
0 z* X" ]# R, z5 r' R8 n& [- <?php
G! E! w; j8 o: a6 d- b - /**; D( ^) r. s0 A+ t: q! T t& R& b" Z* A4 u
- * Created by xwx3 x6 e7 e. D8 f3 m8 c: j, B4 i
- * Date: 2017/10/18
9 [- [" o0 t1 H( n' V' j - * Time: 14:33
* L5 N5 _1 M3 H - */* O+ N# |5 b2 R; E" Z3 \8 f) r
-
& ]- H% w6 x, d3 Q" w2 r! Q - class SocketService
0 ]! }& r; j# j+ R% y$ r+ a - {' F# f { v0 _8 g6 ?0 }
- private $address = '0.0.0.0';# {$ ]) \. y1 c) R2 D
- private $port = 8083;2 C5 w8 [( R' w5 x: P
- private $_sockets;% Z+ x* M" A, T
- public function __construct($address = '', $port='')) U) q+ K$ p! i8 |0 m! X+ _3 z z
- {
2 ]5 O: y; U% ?4 n - if(!empty($address)){
' B R# e& Z: J$ b - $this->address = $address;
9 H8 o( Y4 `" P% n8 Q2 W' ? - }
4 E- a: ~, ?( k( E0 i/ X - if(!empty($port)) {
5 [$ l1 m$ h O. S - $this->port = $port;
: n" D+ I& ]0 t - }& i( J+ K# v6 ?( M; |$ }! I4 S
- }+ a% ~9 v* w( j9 M; a; G' L8 G
- 0 U3 X0 z4 W, b: t" }. b6 X& M) p4 D
- public function service(){
, f2 o. \8 a8 O+ P - //获取tcp协议号码。
: u0 K7 ?) a! n3 P - $tcp = getprotobyname("tcp");
, h* P/ j+ p" l7 Y3 |+ p' B - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
& N( y1 G, G8 @& |. R. ~; T - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);8 M' [: p, q% l- f+ w& o
- if($sock < 0)0 F- ?! P X' q3 P2 e6 P
- {+ ]3 ~/ z4 D; K/ l; E- Z: [6 G
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");9 E, }: Z/ x" o. L5 F' ^ L0 H
- }
C+ T$ ^8 D( T - socket_bind($sock, $this->address, $this->port);3 G, A! p& V* z; o& w+ D
- socket_listen($sock, $this->port);
2 B- y3 J7 {4 b h - echo "listen on $this->address $this->port ... \n";
N& h5 [6 S: D. i - $this->_sockets = $sock;' c! b/ J( [' `8 O8 A
- }8 u" \* ?& ~& b) O6 K$ m( @0 x
-
3 S9 I: P( U' ?) E" m2 Y$ f - public function run(){+ t6 V4 T- h: P ^
- $this->service();
' R( w4 K# o' b - $clients[] = $this->_sockets;
% T& e! e" l9 w8 @1 e7 m - while (true){7 M4 ~) k1 r" d. x" a& D! F
- $changes = $clients;* O: p8 b+ @; Z6 I( }4 ^6 ]
- $write = NULL;( Q. E# {) {8 s
- $except = NULL;1 d! {; c3 r* q% O1 a" e0 M. f: _
- socket_select($changes, $write, $except, NULL);
1 Z6 k6 _7 w/ |) D0 r# b/ p - foreach ($changes as $key => $_sock){1 H8 h4 e- k+ D1 Q( M* r4 R
- if($this->_sockets == $_sock){ //判断是不是新接入的socket! @7 u- T' v5 }5 P3 x: A" h
- if(($newClient = socket_accept($_sock)) === false){9 N, c' g" ?7 ^7 ^' J
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
% c/ ^3 i+ L E ? - }
) y$ g' k; t9 i) y( D- G2 J6 B: \ - $line = trim(socket_read($newClient, 1024)); Y: D2 B2 {+ Z7 R
- $this->handshaking($newClient, $line);" `$ c: ?+ ?7 }
- //获取client ip
5 Y) V" A0 b, x7 `2 S - socket_getpeername ($newClient, $ip);
2 F& ~) _3 u8 C& }3 B9 a7 W/ J. y - $clients[$ip] = $newClient;
) m% y& i! R" ^ - echo "Client ip:{$ip} \n";, G( ^ Y6 c M/ G
- echo "Client msg:{$line} \n";/ M5 b1 w' U7 E6 n# x: q$ c* d
- } else {4 s6 \) F2 b$ H* {, J3 x$ z
- socket_recv($_sock, $buffer, 2048, 0);
+ r, J, D* I% c7 |1 K" b6 q" ? - $msg = $this->message($buffer);* u! i: P& m5 ?. C
- //在这里业务代码* C! ? z! e' N5 c
- echo "{$key} clinet msg:",$msg,"\n";
0 f Z% q, Z0 k7 j% j - fwrite(STDOUT, 'Please input a argument:'); q3 d. ?& c6 `/ w& U2 \
- $response = trim(fgets(STDIN));
- y( Y) M# K& b: J2 X4 N. D4 S7 K - $this->send($_sock, $response);
" v( [9 `& l0 B" x6 q8 D% z - echo "{$key} response to Client:".$response,"\n";+ \1 ?8 E4 w. X( p
- }1 @! Y4 P* o ]- k% r+ k4 Y% {
- }8 s6 v& E; |5 b' J, |: Y' J( U
- }
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- ( g j& \$ M8 Q( Q& f+ N
- /*** G- R9 e" s# c V: W5 _
- * 握手处理/ a% ?* m5 X, ] T
- * @param $newClient socket
% t( A" u* e& r1 T) u - * @return int 接收到的信息
k' |: h0 g- \- \ - */- ~+ ?- X( B( u) F3 I* C0 W, `! S
- public function handshaking($newClient, $line){1 c* m0 f! n s s6 r
-
& @. U2 O/ H3 q. k7 e0 \ - $headers = array();
. b2 B6 t! V* |! t& \4 N' e2 \' t - $lines = preg_split("/\r\n/", $line);: i, J, @! m0 n1 U9 |' d
- foreach($lines as $line)
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- $line = chop($line);
}, D* r: q/ D - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
! u% _4 G+ m# }4 Y. J* l - {
* D6 H, L% x1 [+ z- c1 { - $headers[$matches[1]] = $matches[2];
- k; m* e# R# w- c0 W4 W - }7 G$ S) x; d# w+ ^9 l
- }
5 {* Y5 R' L# w5 _" B - $secKey = $headers['Sec-WebSocket-Key'];/ j- h6 J8 k9 D. H8 R7 B
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));. [/ u1 u5 J) D6 }% `
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .+ g" l, A8 _5 @0 H# \! f
- "Upgrade: websocket\r\n" .
! K, n+ J; x$ u9 M7 O - "Connection: Upgrade\r\n" .
. F0 M5 s4 z9 h2 q: l - "WebSocket-Origin: $this->address\r\n" .
6 o" w' t7 L0 \ - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".: _) ~5 |% ^/ s4 J1 g$ y! k
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
2 V, J1 c' ?2 K5 V - return socket_write($newClient, $upgrade, strlen($upgrade));6 T$ r" m4 T5 G
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- 2 ]) L9 @& ^- R' O7 v1 a
- /**' ^# t7 V8 X+ }& B
- * 解析接收数据
/ @" s9 ^7 P Z3 j: u% g* m - * @param $buffer
$ i) K9 I+ q" Q - * @return null|string* g3 q% T7 V. J% W# A: g0 x
- */
! [# i8 p- P* U/ Q - public function message($buffer){. T. Y5 {" n# j- ?, i
- $len = $masks = $data = $decoded = null;
; v( V+ i8 D; w) C ` - $len = ord($buffer[1]) & 127;$ R0 h: ?7 Z: h* j& X$ g, t7 B5 F) ]2 a
- if ($len === 126) {: k0 [) H5 z% J6 ^& N
- $masks = substr($buffer, 4, 4);2 n. ~4 \" A, |! |/ n. d
- $data = substr($buffer, 8);( W q) l- `, _4 ^
- } else if ($len === 127) {9 @# h% e6 d& r, s% _4 C8 k
- $masks = substr($buffer, 10, 4);. e% t4 _: {" ?
- $data = substr($buffer, 14);
$ _# y( p. G! t! w: u$ _# C - } else {- Y; ~' ?% g- r- J6 F- s2 S! F7 L
- $masks = substr($buffer, 2, 4);5 |! y0 ~" ]8 s0 C5 R: `
- $data = substr($buffer, 6);
. G; |2 y, G7 O& K$ } - }
: F. L6 V4 Z& H( I4 F3 I }' } - for ($index = 0; $index < strlen($data); $index++) {
- \$ k9 p: {. a' o: s - $decoded .= $data[$index] ^ $masks[$index % 4];
5 c; ]0 I8 E: V$ c% b' H - }
# i, f m2 }2 F! d7 N" |; s - return $decoded;
9 ^% m) ^6 P' K+ |% P" X - }
+ \# n e3 V6 K Q5 d* j - 0 l& G- W6 [ h# T% l, A
- /**
@5 `/ I& d8 I* n - * 发送数据
9 U) P2 I) n" ~ S - * @param $newClinet 新接入的socket- W9 L- x0 J: T' Q5 ^
- * @param $msg 要发送的数据4 u) N+ |8 K$ S' @
- * @return int|string
7 J9 [" q. d* M - */
& I' q* k* i ~- e - public function send($newClinet, $msg){. F, U6 S- k- s8 x9 ]
- $msg = $this->frame($msg);
8 N$ [- l1 m" w. t* ?* R - socket_write($newClinet, $msg, strlen($msg));# y: u& K1 Q) R" Y7 O4 d {
- }
0 {3 W# s8 U" V; E$ O( f - 5 ?6 z3 g8 b6 R6 \2 A
- public function frame($s) {
1 S7 S' M0 [9 }* E$ s! I1 k# w - $a = str_split($s, 125);
* g2 E3 m3 n+ s+ e3 R3 G7 {2 I' G/ s - if (count($a) == 1) {0 K2 B: e/ a% `) e4 I
- return "\x81" . chr(strlen($a[0])) . $a[0];# i. s: E c; W9 [, E
- }- u. o, Z' m2 d% ]$ R! `
- $ns = "";: m' k9 O. G9 h y) C
- foreach ($a as $o) {
% \& [. t$ \- X" Z8 p - $ns .= "\x81" . chr(strlen($o)) . $o;: f$ m5 p: k) V5 t4 u. B, C
- }8 O, o0 {; z2 C# I) b. R
- return $ns;. _: Q9 O! W" S) H) q5 c
- }
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5 Q: G$ b$ E8 J - /**) _( m- q7 z9 V- t
- * 关闭socket6 m; V) J" M& k8 J6 ]0 M
- */
! N) @. a3 u) b# } K, Z - public function close(){
$ `# `- X" L# d% c! _" W& j - return socket_close($this->_sockets); j$ y1 E. Y ?* A5 z
- }1 m. K2 O# p% c( W2 v( Q( E1 y% W$ Z9 D4 j
- }+ x! w2 i+ T( \
- 7 _, V4 d" G: x6 f9 ~0 ^, z& @! b
- $sock = new SocketService();
- o* E G6 Z, E' `8 } - $sock->run();
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复制代码 web.html! V& E7 }1 x5 i7 b$ B; w9 u r
- <!doctype html>
- v g7 H" _* A* a9 o* O. w - <html lang="en">5 e$ `% U! t+ g8 s$ m
- <head>
! \/ I; R5 [, _& z$ l0 W/ { - <meta charset="UTF-8">- o2 s) W% y6 g
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">( |1 v% {+ t# E0 O0 Q' l7 C
- <title>websocket</title>
' ?2 a* I: y& R$ E+ o0 E - </head>
$ S+ r. n0 C0 T c1 S2 T/ P - <body>
5 b% J0 ^- A; T/ g - <input id="text" value="">
- s; c8 B' \, H- I3 _ - <input type="submit" value="send" onclick="start()">
0 X" K0 b4 {' _ - <input type="submit" value="close" onclick="close()"> c$ ~6 H! I0 f
- <div id="msg"></div>
0 e: a& a' I1 I5 L - <script>
6 S1 L* g; k6 ?: f1 ` - /**9 H' [! [, ^. b0 L7 ?
- 0:未连接* f* ?" e }! j" Z) ~* D6 }1 t
- 1:连接成功,可通讯8 J6 Y, V! P% [9 I; q4 k
- 2:正在关闭' E- e8 V" a; C. V4 U
- 3:连接已关闭或无法打开& o8 W4 r5 f! p& g6 A2 N
- */
) j( R% z+ T$ ]( _ - : T8 v4 c& v3 V6 |
- //创建一个webSocket 实例8 N7 B. h% h3 g: q8 ]/ O
- var webSocket = new WebSocket("ws://192.168.31.152:8083");& d% {6 ^6 ~2 ^ z3 D1 l ~
-
/ n" w; S" B" r: W G" l4 R - 4 |5 j4 N" f9 s+ t, O; }/ S' D
- webSocket.onerror = function (event){1 w+ V+ r2 H+ F" H+ z! s. c/ n# _
- onError(event);
5 S) f# ]6 I% B. Q0 ]* K& C - };
6 M$ ~0 b: i( {7 k -
% x8 S! |, W2 B - // 打开websocket+ I: h6 D4 a7 q! j: Y
- webSocket.onopen = function (event){
5 B s# q$ W! S; V2 f - onOpen(event);% ?+ b, d- `8 v# E
- };$ }9 y( t3 R4 o% ~' i
- ! O1 O2 z( y: q
- //监听消息9 a$ y8 [: Q' ? v
- webSocket.onmessage = function (event){, Y7 a# Z1 p; C+ O
- onMessage(event);; b9 ~8 z' g* N
- };
- K$ e1 x. ^: w: P" J -
I7 g% M7 r" z" A- g -
% O5 E$ V; r. d6 S3 n - webSocket.onclose = function (event){
" b% a9 c1 s0 g2 |6 _& S - onClose(event);8 H; V/ N" Z# p1 S6 R
- }
/ r* ^! F; B. L* y" \& F -
6 N/ P5 D) G4 C& ` - //关闭监听websocket* }- `. {4 x1 i" v7 ?
- function onError(event){
, c. A; g, i' L ~, v - document.getElementById("msg").innerHTML = "<p>close</p>";
& V8 q. y+ z" D3 \1 g. g( c9 y - console.log("error"+event.data);
) n5 F% @7 z& S - };
: k- T2 S5 W' r* S, k: b -
9 A9 R: b R3 n; }3 D. } - function onOpen(event){
0 O5 `: A- L) {' I - console.log("open:"+sockState());# m, |4 Q( W# c3 E
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
: i# h" u. w4 _5 Z* v- X - };
& [' h9 g7 Y! X* t* Q9 T6 w/ [ - function onMessage(event){
8 l) U$ {. |+ h$ x$ ?9 H - console.log("onMessage");
) F& s. b* \. S/ w8 @ - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
' H( u2 a, T' W! x% @, ^# X$ q - };. Q! C! K9 g E! y
-
Q7 f$ g/ k; k$ M$ Y - function onClose(event){1 [ o* D: j, w0 G
- document.getElementById("msg").innerHTML = "<p>close</p>";
; x/ i# _. c$ K% M8 |* q - console.log("close:"+sockState());, ~7 {: V8 y4 e) }: D
- webSocket.close();1 }$ u2 Q9 c- h; c' w" h2 X
- }
+ `9 t1 t* [* F - ; L: ?1 j/ W6 d) R
- function sockState(){: M q5 p- l4 F9 g& Y: s6 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'];
5 ]2 s, l; W* x, O - return status[webSocket.readyState];
- R1 J, X% D- l& A# T - }
6 \3 P; w! X" S -
% A/ V/ b, g: Q: _) | -
. K8 w' z& y4 M' `+ K - - b, A9 j6 C/ @* n
- function start(event){( I1 d' l; Y* F7 s! n9 i, j, e
- console.log(webSocket);
* Z2 {, x( W" U S4 j: y - var msg = document.getElementById('text').value;
* {, {$ p2 G% {9 @5 I$ c - document.getElementById('text').value = '';
8 f) A/ M8 D' b3 F+ q' v) f - console.log("send:"+sockState());# P/ J( |/ D& V
- console.log("msg="+msg);
5 ~6 n H: e% X# o. Y - webSocket.send("msg="+msg);
2 c- J1 j( O* t4 N: Q/ R - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
* A; z: ?: L7 j: s' R - };% {% ?) G$ @* X* y5 J3 b9 p
- " a! f& O( e5 C' V2 |. [
- function close(event){* x& s, ?! L+ I2 }6 M
- webSocket.close();
/ C: m$ F) D' V5 b& Q - }
4 {! S6 Q: J$ a% \1 j - </script>8 y( i9 s, m( ?* N. R
- </body>
$ e+ i0 y, m+ s5 {2 U - </html>
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