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php实现websocket实时消息推送: J( h, x. ` {
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SocketService.php4 \1 M" i, e- E; H2 v) T9 w
- <?php
; g; n, f" i1 U1 M& l/ G9 T6 t - /**
4 Q5 Q& I+ z) F: {! H - * Created by xwx: K! l/ X" J0 I4 e. Z4 t
- * Date: 2017/10/18& N! v1 a# E$ A6 c$ ]
- * Time: 14:331 b4 N3 X8 m7 k2 |( a
- */, x- M+ S3 m" O) Y" p. B6 K
-
$ i* ^, ^3 D; o! D0 h8 T, } - class SocketService7 p8 c8 \3 V1 l4 _: \- O
- { ?0 ]6 A* w% }+ [) T' V% e3 M
- private $address = '0.0.0.0';8 g/ K8 R4 x, ]3 S5 o# x6 z
- private $port = 8083;
) a, L7 r9 n/ u' ^' I! g - private $_sockets; [0 h; e: y: {: @! m* X
- public function __construct($address = '', $port='')$ w3 w; p7 a! X# Z6 P1 m
- {
, {0 b; T+ a O+ C2 S/ r* W - if(!empty($address)){# @1 k @' Q8 K3 E8 E" v; G- D& R
- $this->address = $address;7 B% j( P+ F6 @. O6 \8 }: S4 Y) n$ t
- }& g0 m9 J! S% o+ H0 x& ~- X
- if(!empty($port)) { u$ [8 `$ U; F! C) m8 `# q
- $this->port = $port;3 [# O/ A5 E C v. z$ A
- } E( i/ o- m7 `( n% q j
- }
R. Y; W2 v4 |9 n* y5 ^' O( o7 C+ Y - $ \( @( Z' c5 k4 T9 e
- public function service(){3 }1 M5 d* y) g
- //获取tcp协议号码。
! @% O! U3 [( B+ j& l5 U/ i8 q - $tcp = getprotobyname("tcp");) m% w& G2 d \: f
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);% r9 i# D7 y$ |% d/ k+ k- A6 y" v
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
# ? O Q0 q& T$ q! c8 I. N8 U - if($sock < 0). }. ~* F T0 V, C4 h$ y% u% D
- {# x1 m5 c0 Y' }9 |
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
2 f6 V! n4 J, e& m8 D - }9 M! ^! `8 U0 g: l- X+ G) Y
- socket_bind($sock, $this->address, $this->port);
3 |% s4 E" N0 G# m - socket_listen($sock, $this->port);/ k% D0 s( n; |" P% V- @ f- l
- echo "listen on $this->address $this->port ... \n";; D" M, C* C+ ^% M5 T% |
- $this->_sockets = $sock;
3 \* Q% I: E. c2 S% w) O: D1 w+ X; b# { - }3 f# Q# y0 _: [# p( |# h/ t
- % K5 X3 K& f9 t) N8 \5 g
- public function run(){# l1 V( @4 Z# P1 v: k8 r/ r
- $this->service();, j$ Q- P2 @. ^6 K/ e; j( e8 c0 L, b
- $clients[] = $this->_sockets;3 Q- _/ d# B! U& C. l, R4 x
- while (true){1 N8 p1 H- u$ b/ d% L
- $changes = $clients;: Q+ r R- ~0 v( e1 e. P' D* U
- $write = NULL;3 @7 e$ U/ \0 ] e3 j( o
- $except = NULL;
, j* y1 m0 h: p, v - socket_select($changes, $write, $except, NULL);# A( F" z) C2 _6 _3 f, n! `
- foreach ($changes as $key => $_sock){
( Q. _: o, b; l - if($this->_sockets == $_sock){ //判断是不是新接入的socket# w5 D% g, w5 ?" Z0 u
- if(($newClient = socket_accept($_sock)) === false){ Z8 a0 E4 Q" G+ H M9 {! m4 x
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
$ z4 F( }; Z0 u3 A - }
, }' I6 q# }+ V- X% ?6 H5 P - $line = trim(socket_read($newClient, 1024));
5 M( Z; U# u/ v# Z1 U2 ? - $this->handshaking($newClient, $line);
4 C; C, [8 _6 [" I, N4 _! L - //获取client ip
! ~8 F! R/ `6 t0 R& E* j: p5 C - socket_getpeername ($newClient, $ip);
; D' m3 b! m& n. s+ D) v - $clients[$ip] = $newClient;
* T9 v' w/ g# F# E - echo "Client ip:{$ip} \n";9 n D6 `3 R* u% h0 I
- echo "Client msg:{$line} \n";
$ p9 K( `2 l8 E2 P - } else {5 l4 d; \, n7 m/ U3 |
- socket_recv($_sock, $buffer, 2048, 0);
/ R: \5 v7 m, }3 o - $msg = $this->message($buffer);
. y* G" i- s% j* Z/ {' F& @- B - //在这里业务代码% m& y% f* h- B7 c" b* G5 l4 S
- echo "{$key} clinet msg:",$msg,"\n"; w! K4 p6 u: e8 e2 l
- fwrite(STDOUT, 'Please input a argument:');
+ i8 Z" {9 q; I9 N - $response = trim(fgets(STDIN));: u7 c1 m# d. H& L' T8 t# |% W
- $this->send($_sock, $response);7 H7 | `: x! S9 L) m
- echo "{$key} response to Client:".$response,"\n";
# z. j* b) M4 y! A2 S - }
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- }2 Y2 Y( \7 B: I" O. n, ^
- }
# J, @+ y- [0 m% H1 J; ? - ( R+ C8 t0 X4 Y! n7 u+ F, f
- /**1 R( P2 J9 @: X
- * 握手处理
, ^3 }9 h1 s! E( @ - * @param $newClient socket0 u6 B0 l0 B( u
- * @return int 接收到的信息
6 h! c$ j3 G- i% M; V6 O - */
6 o3 n/ Y4 m* w$ x/ I( G. j T - public function handshaking($newClient, $line){
, k& _! \, v/ X+ s - 8 v; j( S" x3 p3 K" Q
- $headers = array();
- A J! z" {; U. W5 o* R1 x - $lines = preg_split("/\r\n/", $line);
& [1 g0 w' g3 G. X9 S4 h - foreach($lines as $line)
! C& w. q# H- P, x - {
/ A# M1 I4 Q( j/ o( Z - $line = chop($line);
/ i! w$ }& t& ^3 L - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
4 Z& O, I) m' Y$ w1 N" I5 E - {
! s( ?4 h+ d* S+ ~' j# ]& x - $headers[$matches[1]] = $matches[2];
6 G* O, S' U" X5 d, {$ q - }
; H+ I$ b# M+ c' F/ B$ E6 K0 @ - }
- b1 Z2 N" p4 J: s2 J' `0 L; m9 t: ` - $secKey = $headers['Sec-WebSocket-Key'];
% y% \) o0 N- |) g. U - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
2 y: t, s: F/ C# U - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .# S' U4 Q8 g1 H6 q! N4 \* O
- "Upgrade: websocket\r\n" .* ~( s8 y/ l4 u, \# i/ g( Z- R
- "Connection: Upgrade\r\n" .
9 ?* C& ~; W# a W' k6 z% c - "WebSocket-Origin: $this->address\r\n" .
+ E) o' ^7 e- k5 p) e - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".! _; f6 N) }+ e4 N% K: Q! f
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";8 @- r& m0 J/ p3 L- O: `2 K2 k
- return socket_write($newClient, $upgrade, strlen($upgrade));' y$ Q. P& ?1 ^1 J! _" b
- }/ o8 ?9 y5 d+ |* b& V1 w3 U! ?+ K
-
; h7 N+ S: s/ }8 P/ D# e - /**7 k" n' U* F5 J
- * 解析接收数据
% t4 X0 W K l# o - * @param $buffer- h. c6 d# C. o% f1 b8 m! z
- * @return null|string
5 R7 {7 p2 G1 U& E5 ^ - */6 [. X9 N3 Y2 E) G% c- l% i( l
- public function message($buffer){
2 G+ ?1 u3 A9 m4 z k' l1 T6 E' h - $len = $masks = $data = $decoded = null;# _1 X B, P3 q) r
- $len = ord($buffer[1]) & 127;
3 ^+ C/ |( z( a. t4 D: @# k - if ($len === 126) {
+ q% A8 h% E% @4 |% }4 Z- ^$ g0 z - $masks = substr($buffer, 4, 4);
4 n, f5 r' o8 E! j+ e! E3 }2 X3 g- e4 [ - $data = substr($buffer, 8);$ f) U! `5 n/ k; u
- } else if ($len === 127) {5 M( R I; O4 Z8 N' ]/ b
- $masks = substr($buffer, 10, 4);% {6 S0 _# Y4 [) n v) c8 ?
- $data = substr($buffer, 14);' S7 m# c. ~2 N$ ~ X/ t& h5 `
- } else {
0 m; b. ]0 Y0 p4 s9 e - $masks = substr($buffer, 2, 4);; s. Y6 ~4 E1 q% P% `% B5 _9 _
- $data = substr($buffer, 6);
7 t6 d! D- y/ | - }' P7 y0 `5 p3 [- O7 C0 I3 R
- for ($index = 0; $index < strlen($data); $index++) {
1 \6 R+ ^% |# ?; J G' ~$ W - $decoded .= $data[$index] ^ $masks[$index % 4];
2 H3 @9 W) b v. E1 J - }
5 \/ r5 f! l. v - return $decoded;8 A% R6 M1 x" b9 e& H K
- }* `5 I& ?- D0 \* C7 f7 G2 s
-
# v2 F: l# t. H5 ~ - /**# F; R- x& R" b D6 E/ q
- * 发送数据- Q5 x- T1 U; a, A& ]
- * @param $newClinet 新接入的socket
7 @3 t# g! P% [ {& `2 k - * @param $msg 要发送的数据% y$ g5 \- b1 C
- * @return int|string
; L% {* O6 x( e$ q - */* |7 ?! N; R$ R* Z c$ e# _
- public function send($newClinet, $msg){: O. k9 Y# D/ ~1 U# ^
- $msg = $this->frame($msg);* Y0 a# K+ P% ^: v
- socket_write($newClinet, $msg, strlen($msg));
" U; x. J. m+ D" b4 f - }5 {1 r/ {: S( q
-
* _8 E6 J6 I4 [ K9 C! s2 k - public function frame($s) {2 U" C& a- n4 b$ L& G
- $a = str_split($s, 125);' I J) g1 Q$ Y7 U" @1 L. n5 d* i5 x$ G
- if (count($a) == 1) {- b! H. w3 y1 e, {. ~8 K
- return "\x81" . chr(strlen($a[0])) . $a[0];0 o2 \& N1 b# P/ ]0 {
- }
$ F! A- p4 A+ c: X% {" x. l" j8 \# H - $ns = "";
- y5 T G9 r# W# J! Y8 z3 t; O - foreach ($a as $o) {
. F1 K* I6 P/ F4 ^7 ^ y) K - $ns .= "\x81" . chr(strlen($o)) . $o;
6 I+ W; D2 J) ], u) u& D4 R - }
# W: Q1 d! W. V7 o F/ Y: G - return $ns;
B2 t, Z, ]! g G& Y( N - }5 h9 o5 ^: w5 T0 u% @% W A6 b
- ) D2 K" `" z+ r, y/ @0 ~
- /**( v1 U3 \* {8 b8 N) W
- * 关闭socket. l" E/ l9 b& Q; ^
- *// x) |# k7 X# D- u# B2 R
- public function close(){* Z) E3 {) A! x
- return socket_close($this->_sockets);# m% h9 X1 X1 e# [
- }/ z6 d6 u! S6 E9 ]+ F/ l
- }6 n7 {2 s+ [7 U( m7 N$ b( J
-
; ?1 y3 h6 X. M - $sock = new SocketService();; T. `4 t+ ~6 Q8 r7 {
- $sock->run();
% n4 h/ K# s2 }+ {6 J" F5 ?. d/ w - / E+ ^" U+ e/ h% S
复制代码 web.html+ [# L0 F) V7 y# C6 M
- <!doctype html>3 W# z( q# c9 Y$ L7 Y
- <html lang="en">
( @9 ^: v1 s% C) ^ d+ w - <head>
' l- }% ~4 s7 @) g0 X; h - <meta charset="UTF-8">5 b" z0 ~3 V& H" t' `. T& y3 A
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">2 P6 s8 U' m$ ]2 k9 A
- <title>websocket</title>
[8 H6 M# Q, P% j1 q- x9 d N* E+ z - </head>/ F0 T Y/ O- O8 m& J/ [8 }
- <body>7 L, o. A7 B& w6 u1 i3 G
- <input id="text" value="">( B8 h2 G* u9 p7 i/ [; U+ L
- <input type="submit" value="send" onclick="start()">
' R$ o/ E, |3 t - <input type="submit" value="close" onclick="close()">2 r: j, M$ \! k6 d ?4 G0 j9 _/ z4 A
- <div id="msg"></div>9 m5 L. a/ ^ o! X
- <script>8 P, I7 [2 o: g: [( {0 [& x7 M$ h
- /**; P5 w7 {; f6 G" W0 {) b. j
- 0:未连接/ Q! }& {* P+ s. z# J4 X. M
- 1:连接成功,可通讯7 ]+ o9 W/ J# B) F( u7 S
- 2:正在关闭, m4 o7 v; b; F) o
- 3:连接已关闭或无法打开
2 ~+ R4 v5 |" [) x7 }* A - */
8 G% _; V+ j0 G -
/ l) C* u" P) m, v- V, g# f - //创建一个webSocket 实例
3 [- g# f; P, i7 g, E! t4 V- Y - var webSocket = new WebSocket("ws://192.168.31.152:8083");
( ~8 M- a6 q1 f' A- U -
/ i5 M+ w. N( x1 V" ~ -
9 ]. m: s8 ?6 e2 y8 A: V; T - webSocket.onerror = function (event){
9 D: J& u. u# p5 t7 m9 |% U) ? - onError(event);
5 _3 D8 M v, }$ F ]9 g6 J7 V0 w' G - };3 k$ a$ D% y& Z, V" ?
- ' G* L% N9 U" ^* F4 ?9 P7 ^, k
- // 打开websocket
/ J" K# r2 Z$ z4 _ b& Q/ h4 i - webSocket.onopen = function (event){. [& y. [' J* q! m
- onOpen(event);
5 \/ x$ B$ H/ q3 q( w - };
$ x4 c$ `. T: `% l+ Q8 @4 G' X% {, X - 3 w6 \; ?- H9 a
- //监听消息
0 j! M( r8 H! r6 [" p) A - webSocket.onmessage = function (event){
9 c( L3 s4 m8 C7 ~% d - onMessage(event);
! F {, L$ V) y - };" R5 ]0 r( G0 S9 r% I- V: e/ X
- % P; m" h* [8 K1 ?" I' v; m) A
- ! x$ ?3 r% N' t4 ?' q) t
- webSocket.onclose = function (event){0 I0 ^9 d) S' t. |. g
- onClose(event);& _3 c7 x7 _2 U1 e2 F, Q% e, O p7 A
- }
' @; j5 T* y" Z- C7 ~7 q, p: S - 5 B& u' _( g# X- ?
- //关闭监听websocket
1 @7 e* Y- }, a" {$ V" _3 T# H' E W - function onError(event){
3 |, S1 H2 _* [* s0 l: L1 k - document.getElementById("msg").innerHTML = "<p>close</p>";
/ X; v- m* E6 w0 m4 R - console.log("error"+event.data);% Y1 T3 ^6 X# t- ]
- };
; Q+ O+ _7 D0 M1 M* e -
! W. ^3 j2 N1 u/ m7 r c3 e8 F) v - function onOpen(event){
! v+ [6 d3 Y4 k, X - console.log("open:"+sockState());
2 d7 h; @5 ~& @- L6 x - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";- {' J- x) s# d* D4 G6 D4 j
- };
$ ?# a; y- z5 k+ c; R8 q - function onMessage(event){6 f" Z4 p3 [& D: J" e. A" ]
- console.log("onMessage");6 @, m: Y, Q! L
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
1 e; g' A2 L& n' D& v; f - };: ^( o1 q' s6 |/ w6 o4 T' w
- ( `( y& w0 L5 X9 n7 F
- function onClose(event){6 h" |7 T3 }$ A
- document.getElementById("msg").innerHTML = "<p>close</p>";
: c+ H, J* P- W# f) q9 q! g( `0 R - console.log("close:"+sockState());4 |* U! U; Q" |
- webSocket.close();6 @- h- |' `/ z4 j+ Y
- }" t/ f4 K4 t, p) J9 `# F# a# b
-
1 r7 ]! H6 O Q - function sockState(){3 R6 [/ d3 f1 A, E) h' \& I
- 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'];
) U" i n8 Z4 M: E& O* @ - return status[webSocket.readyState];
U% F4 e: l) A. H2 U9 r - }2 Q P, }! u' v, \
-
3 e* N/ `% a7 {/ U1 Q. o ~ - - K. Z+ e4 y4 q& Y
- " y2 m l& l; A1 A+ E' Y
- function start(event){
$ W! C3 L* O( O' d% `( c& |) ` - console.log(webSocket);
. S1 X4 V) ]+ _0 M6 A' I$ d - var msg = document.getElementById('text').value;9 p( s# y i5 f3 Q8 L( M+ R
- document.getElementById('text').value = '';
5 x% i$ I4 O& f1 D j/ v - console.log("send:"+sockState());
5 s O0 X8 @6 ] - console.log("msg="+msg);
. @) X2 b5 ]6 L6 s - webSocket.send("msg="+msg);: M4 d4 n+ r& n3 Q9 Z t }
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"1 R5 y$ D, q2 Q$ j; n, ]
- };
; C6 I( N/ u8 I0 z - 4 w2 q4 \; K0 }3 z! l
- function close(event){& V& I0 H6 b/ n+ j' {" q
- webSocket.close();5 u& C5 @5 P7 o* \" e
- }; V' d( v. [) b6 B# m
- </script>
' G# p' A. }" s7 a1 O& t - </body>
- P8 J) Z: `* @4 p( b# A - </html>
复制代码 _% A" k4 j8 g7 Y( r" \' R
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