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php实现websocket实时消息推送
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, a5 p( q4 C& h" g6 o+ p | L2 \SocketService.php
3 l" ? r* b6 {! z9 u/ ~* N+ n9 j- <?php
% n4 B8 M: ?. W/ C4 G2 G - /**
& g: f# k4 p! }5 s8 ~9 b - * Created by xwx
6 u# ~; U+ j8 B+ X+ ` - * Date: 2017/10/18& t+ x* p3 t( e
- * Time: 14:332 d: Q C& L+ r
- */
$ t0 a' q( l e9 B. V3 P0 ~ - , _# L5 Z* \. h( c/ d
- class SocketService
: t5 S. X7 K% t+ W& G! R - {( k: U9 m7 \$ K) \0 o' P
- private $address = '0.0.0.0';; {0 B2 D6 E3 }, F6 m
- private $port = 8083;0 N! o, `& f: H- g* |9 z+ j+ k
- private $_sockets;2 U% y9 h4 B# j
- public function __construct($address = '', $port='')) C# ?) w5 A& Z7 B% q( h5 d
- {
7 X3 l: S8 N( h - if(!empty($address)){: N! Y6 R$ x% c0 K. [( R
- $this->address = $address;
" X- t) |+ z* ?9 p' K' d9 g - }
: G# B" `. P# x6 b% m! X - if(!empty($port)) {3 N9 y; u- @& d0 m! W8 D
- $this->port = $port;0 a/ X5 x2 c6 ^7 ~
- }
X& T$ D3 _4 I j& B - }
5 x3 v, k% f: ]( Y -
' V: X' o9 Q' s* P& ?5 t - public function service(){- L# z; h, a1 G1 l1 @' Y: N& s
- //获取tcp协议号码。2 u" q' m6 S0 S' q M4 Z8 j
- $tcp = getprotobyname("tcp");
; p! W6 _& N3 H& c - $sock = socket_create(AF_INET, SOCK_STREAM, $tcp); x3 Q% K" i0 y4 i6 r( j0 y3 t0 H# E
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);* q$ f. h) w' I ^
- if($sock < 0)4 T* N! t8 Y+ \1 [: F
- {
4 \6 y/ _$ [( A - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");* r( Q) P( @+ s/ z9 @6 T& x
- }
. F" v) r0 L& Q& r+ i5 ?! M* Z - socket_bind($sock, $this->address, $this->port);
! H3 @. K9 Q0 b" J# Y0 N% y - socket_listen($sock, $this->port);
# s, ^9 [' }7 b. W8 c - echo "listen on $this->address $this->port ... \n";
. h9 w- e* Q& o! n: n& C - $this->_sockets = $sock;1 w6 v: ~3 T- g0 p
- }6 P9 Y$ b3 Y2 ~& }' n6 Y
-
1 n; }) o: d) p: s8 A$ g - public function run(){
3 A. s) \1 K/ y2 \, g8 G - $this->service();% J4 d! f; V! e5 O
- $clients[] = $this->_sockets;1 e8 k* u& f* C# j9 y$ [. r4 k" }
- while (true){4 R- u z% M) }
- $changes = $clients;
& u2 E6 m$ ?# Y7 `1 | - $write = NULL;/ x4 _' j+ h0 B0 a
- $except = NULL;8 R3 b3 i6 L& x+ z9 ]5 s0 G6 x& u& O
- socket_select($changes, $write, $except, NULL);
6 }1 H: A! h3 @0 b( o* C - foreach ($changes as $key => $_sock){
8 n% d/ m$ `- ^ - if($this->_sockets == $_sock){ //判断是不是新接入的socket
6 j/ B4 B, C* Q' c% ?9 L4 E - if(($newClient = socket_accept($_sock)) === false){
& R6 T$ D0 Y: Q - die('failed to accept socket: '.socket_strerror($_sock)."\n");
9 H* @# W9 R5 \0 k- L - }' j+ M. w, v; j) a8 m2 U0 m
- $line = trim(socket_read($newClient, 1024));
4 ?- k S4 l% [4 N) ~3 z - $this->handshaking($newClient, $line);
; O6 n R0 {( y% q3 {* q - //获取client ip
4 d/ i9 c F" h. N; T m& e( ~4 i - socket_getpeername ($newClient, $ip);0 H" L$ u/ w8 K, x; l# E
- $clients[$ip] = $newClient;
3 j4 a* T2 F' [! D* g# T- L - echo "Client ip:{$ip} \n";
! {4 o$ g* t6 a$ \ - echo "Client msg:{$line} \n";- e8 U0 Q* M( F4 A; R/ a
- } else {7 |/ i/ b/ X/ u [2 j
- socket_recv($_sock, $buffer, 2048, 0);
2 t6 X0 R- m5 W - $msg = $this->message($buffer);
$ ~, ?% c6 a6 E: f( S0 O% d3 H3 B - //在这里业务代码
' `, H; I4 P0 Y. D% g( y, ]3 [ - echo "{$key} clinet msg:",$msg,"\n";2 ^: {4 E7 n3 }4 }6 J, |# ]
- fwrite(STDOUT, 'Please input a argument:');
. C+ g& a- s) U8 W5 v* l+ Z - $response = trim(fgets(STDIN));/ q, { o; K$ @: h, C
- $this->send($_sock, $response);# y, d% u& G6 H! K# E. `
- echo "{$key} response to Client:".$response,"\n";( I- V7 O5 t J/ h5 ]' z1 x
- }: G6 j9 Q" _% w, S& e0 ?1 q
- }* p. P6 Y% K( y# _" s
- }
& }6 A8 z1 l9 x. |6 B$ o - }
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! R( L; t; L+ G# s* q3 m - /**
' S! Y/ M( l8 ~9 p3 n - * 握手处理
( P! p$ J6 j( X$ A2 L- I - * @param $newClient socket1 m) M& |# I+ j; N: e) g* w
- * @return int 接收到的信息4 a2 W" o5 E! T( w
- *// k) b* g9 e# ?% d' S9 ^
- public function handshaking($newClient, $line){
! W- \! F; Y+ f, G$ ^. b# Z -
4 K- W+ M& L' X8 b6 k8 q. L - $headers = array();0 t/ C1 A1 @* s% E1 R3 i
- $lines = preg_split("/\r\n/", $line);; ^( u7 Y% q$ U. t6 B# L* ]# K; N; N
- foreach($lines as $line)
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- $line = chop($line);
5 {4 p; E9 c; O! U! o; X8 S+ m - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
0 c8 }2 D- G' g7 B" \4 Q- K - {! y) }- z3 `: h; ~0 f9 h: N
- $headers[$matches[1]] = $matches[2];& A# u6 q$ ]: h# P& A2 f# h
- }; _0 \; i( F+ Z, _* a1 P
- }
3 d& S' O3 J$ |( j8 a - $secKey = $headers['Sec-WebSocket-Key'];& x! ^2 L1 H7 `. p( w
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));! q& _1 p5 m* g, @/ u
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
! m/ {' D3 V, ], c7 Y, G, K - "Upgrade: websocket\r\n" .% N& T& |3 ~: X# {9 G
- "Connection: Upgrade\r\n" .
D4 ] n0 T8 Z8 y - "WebSocket-Origin: $this->address\r\n" .4 }5 f3 n& q* b) [2 y- c+ B# A1 d
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".6 m9 M1 q1 }! g! [. ?
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
" a) d. \' D: L - return socket_write($newClient, $upgrade, strlen($upgrade));. y! m7 W) k2 P3 M7 o- j
- }6 V# o2 n/ S9 b& j6 j! i
- / G3 a9 g# |2 ?' r: x M1 g2 l1 ]
- /**5 i: n% q& d# L2 Q
- * 解析接收数据
9 d6 s3 Q u- a( i - * @param $buffer
& @% ]3 w# O2 q/ F) L - * @return null|string* z2 o5 Y- C5 u3 R6 O3 i
- */
& F9 A0 F! ?6 ?% e - public function message($buffer){5 a l; W6 @3 F3 ^
- $len = $masks = $data = $decoded = null; q g& G, H+ F: n. b1 q, k, j6 p
- $len = ord($buffer[1]) & 127;
' h, y9 K# R) p7 p - if ($len === 126) {
4 m* } y7 V: @5 @ - $masks = substr($buffer, 4, 4);
% n# l# T: i% g- w7 L# E4 q - $data = substr($buffer, 8);7 @. D5 Y4 ]" m, t. m, g* q
- } else if ($len === 127) {1 ?* }8 F+ P# K; F' y+ l; G
- $masks = substr($buffer, 10, 4);$ @1 `' d$ d5 W4 }2 O( B3 \
- $data = substr($buffer, 14);
) A1 u" E) m5 b* u" ^ - } else {
) B- S3 T: L' ~+ Y; }& C - $masks = substr($buffer, 2, 4);
6 X2 {0 o: ?8 V2 g9 c# Q2 g - $data = substr($buffer, 6);2 n1 D9 a9 {, r: t$ n5 P9 l
- }9 F/ u3 o; Y1 f8 P+ r# q5 L$ c1 k7 a
- for ($index = 0; $index < strlen($data); $index++) {6 l5 }: q3 ]9 S! v% @/ X$ P6 p
- $decoded .= $data[$index] ^ $masks[$index % 4];5 W7 g# [% G. F
- }* g- V- i9 m1 [* R* y
- return $decoded;$ p# @4 I2 S) R; W
- } i; F( `; w4 p% B! k0 w6 ^+ x
-
4 w+ D! J1 F& ?2 ^$ n: b - /**
9 N. F; ]3 S/ a - * 发送数据. Q& q3 W( d5 A0 g, J8 I
- * @param $newClinet 新接入的socket
3 B+ |7 s8 M1 }! a) Q - * @param $msg 要发送的数据% `; D4 V B3 d& U. t8 Y$ b: o
- * @return int|string
8 H( l' I3 X# i8 V3 g& v2 D: ? - */
/ [2 g% K; I0 {. B* U - public function send($newClinet, $msg){
5 P+ {" x x5 u3 z1 t0 |: Z - $msg = $this->frame($msg);
1 `* _3 I& b4 F# i4 l - socket_write($newClinet, $msg, strlen($msg));5 }: m) G0 `5 x9 U
- }) `* _2 p1 F* x4 H& ^. m* s; S
-
: N. l8 k5 K' r. E; P - public function frame($s) {, E) o$ P6 R, ~: s7 }
- $a = str_split($s, 125);2 Z" _$ W, ^/ }2 e7 j5 p/ D% e+ d
- if (count($a) == 1) {
. u! v7 {# e: u* C1 l& k0 N - return "\x81" . chr(strlen($a[0])) . $a[0];
3 }; W& Q+ Z/ t) l - }. P, a# S2 L- B# S0 [
- $ns = "";$ j& r/ Q/ P- t. Z6 K
- foreach ($a as $o) {; W2 z9 A* p7 {4 l+ U) M% U4 o# \
- $ns .= "\x81" . chr(strlen($o)) . $o;( S# i) T& e8 e" ?; f& {1 \+ e
- } k: _ b8 a: r- O0 Z3 U
- return $ns;
, b9 R- F9 B$ B) @2 J$ Y0 j6 u8 D - }, n% f# [ W1 C4 ^
- 6 ?0 z) T+ Q) Z! A4 v) k
- /**
0 f! _8 |2 V+ M: A8 Q - * 关闭socket
* c" ]/ P; d1 n' z5 e% j - */
; r1 m( c( {; l& d. ~) @1 S - public function close(){2 p9 y: ?4 u; J& U r
- return socket_close($this->_sockets);# W2 K4 y% M/ A% l
- }
: d( m" D! A6 N; f" M# t4 U - }
2 |9 ~% ]2 C3 Z: e0 `1 r - m5 R/ v4 ~; g" Q. ?( [' {
- $sock = new SocketService();* f6 A" L4 o: |* b
- $sock->run();# k2 K# n- e; l; C+ C, D1 J5 d
- 3 c- Q4 }: Z& s7 H
复制代码 web.html
# C0 x# h# I, |0 ^; `$ \, G- <!doctype html>
N; e' x3 C4 x0 m& w - <html lang="en">0 h% k, R! r+ K" I7 [' X/ g
- <head>
0 A! N: C2 v' s# e* ? - <meta charset="UTF-8">
0 U6 B, D; N& P3 {' n. h - <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">0 E H, e3 D" Y) a' o+ y0 |
- <title>websocket</title>
2 X* L8 h5 W& t3 u - </head>4 y4 u* M8 S8 f" `: X
- <body>% x! _& q% \4 V
- <input id="text" value="">* S/ C/ W, G( b" s Q
- <input type="submit" value="send" onclick="start()">, ]8 k9 Q1 m9 |* s& f
- <input type="submit" value="close" onclick="close()">$ p( v/ Y# x8 J5 z1 v
- <div id="msg"></div>$ D& f0 V2 I9 z) W3 d) K, B
- <script>
9 E; G! H! p. `- q$ T - /**0 d: o! L b9 P$ N
- 0:未连接" f5 r# ]! T6 L( ^5 s" i
- 1:连接成功,可通讯5 F7 \5 w! ^; o! F: \0 H
- 2:正在关闭( O, A: u8 h! l8 u; ?/ W# o
- 3:连接已关闭或无法打开
$ u' l0 p4 W) v7 e5 s - */4 [: R+ ?/ v) V
- ; _+ }( ]1 F }0 ]5 w" p
- //创建一个webSocket 实例
7 l6 `! ~ c: x. P. O) S - var webSocket = new WebSocket("ws://192.168.31.152:8083");
. l$ h7 t$ y/ Y9 e+ { -
0 g- U! ]9 U7 Q9 o - 7 r2 v9 \& t" j, A u
- webSocket.onerror = function (event){
/ Z s- [, n! h! Z - onError(event);
3 I3 a0 q% z+ C2 A# E7 m - };
5 r* S) U( j0 j7 y6 ] -
) ]( m) d, w% i - // 打开websocket
) k7 B# v* g8 q0 D - webSocket.onopen = function (event){
: d2 X+ Q8 T! N5 D - onOpen(event);
; _6 z" G) ]( K8 L5 V$ m - };3 {$ \& ?4 N' X7 r" K4 ^
-
! \, T8 S! f- @2 r - //监听消息
O6 h: V" l. e. E+ |! I - webSocket.onmessage = function (event){
, R# y) [& f) _3 g) R - onMessage(event);
/ D& ]( v7 v8 w0 J* r - };
# _6 S6 X- }& u, f/ S+ m4 P2 q7 ` -
4 u1 D* a/ p8 @# g; a -
6 p7 \) t g3 S8 n( G - webSocket.onclose = function (event){$ O5 Y" W- m T
- onClose(event);
) ^1 E4 o0 _* h' u) z& ` - }7 x4 O6 U5 t5 e( g
-
. ?6 o: M# O1 W( q v2 w# h - //关闭监听websocket" ^# z9 N) X4 W
- function onError(event){
^; G! t. `( R5 a9 n; v - document.getElementById("msg").innerHTML = "<p>close</p>";
0 H! }0 }$ w8 W/ t1 `+ _ - console.log("error"+event.data);
3 n4 z4 R& G" r8 Y% e1 t7 S: m6 c - };
, q' I7 ^- B! Y9 F# k - ) I' M+ y' E! C9 }5 ~% F
- function onOpen(event){
; {9 V6 J: e# a% V/ P - console.log("open:"+sockState());
; y; T' |1 s& `# J, [ J - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";* [ y2 h6 P; q$ S
- };
7 ~ s5 b% Y4 Y9 S/ k - function onMessage(event){
4 {' y* C7 M+ u+ a) ? - console.log("onMessage");, y5 |) K# E8 `) Z- a4 n& Q% F
- document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"* i. X [' ~6 d1 g" D6 k: z! |4 @
- };" _0 K4 w1 V2 j8 s# z0 s( N
-
# |, |( H' M1 }' S' ] - function onClose(event){+ Y/ U7 g0 H/ d! f
- document.getElementById("msg").innerHTML = "<p>close</p>";4 x3 L$ F5 c* Y" x/ i, d
- console.log("close:"+sockState());
* f6 e6 E- Q8 z; ^- ? - webSocket.close();
2 x# {% ^2 x" i! q& r& I- o" Z - }% Z; g, V+ [" t6 }9 d" U) Q
-
1 F: Z9 _4 _) h9 m+ z - function sockState(){
) _, C) f! E$ T) r - 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'];; e0 b& R/ n0 M( l" v
- return status[webSocket.readyState];/ L8 w: C% P9 {/ z/ X
- }4 z ~* t* i3 v/ l3 ^, n6 F$ D
-
& K6 C2 w( G% G# D8 C/ {: P8 k3 C - 2 K* T. _9 @/ b/ u2 T7 R) i
-
1 _0 U+ g" c. V3 b( w - function start(event){
" i" ~, j8 Y3 V) ~! ]# Q! g - console.log(webSocket);/ U$ u& X$ `; Y! c2 k3 E( V
- var msg = document.getElementById('text').value;- }: y8 i; I* A9 L+ f" l
- document.getElementById('text').value = '';' k: g" U5 f9 R! k2 N% {3 U
- console.log("send:"+sockState());5 O$ v& F. Y1 ~" I. W
- console.log("msg="+msg);
" a. {3 l8 n9 i- E* M - webSocket.send("msg="+msg);
2 S! w% E' w4 H* G0 d- z3 z" Q - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
& Z8 ^5 k& I }6 E - };
' n, s! V3 `& t3 B -
( F; c) i: v/ F$ | - function close(event){: I7 X& P; s3 l5 X! D' `+ j( B
- webSocket.close();
9 v3 P1 t; P+ c - }
6 u& V/ z$ H- s8 W$ \- ?& [) W - </script>
) D7 J5 ]0 Y+ L# O/ i1 z3 h - </body>& H$ f8 j, J! C3 \9 k4 l0 n3 ^
- </html>
复制代码
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