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php实现websocket实时消息推送
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SocketService.php7 R5 R% y' C$ ^. E! z4 C2 p; K* p
- <?php" Q2 g. ]7 M+ G7 s% [9 {
- /**" E2 m' E+ l5 T4 t" F7 M1 c
- * Created by xwx6 p" X7 f3 ]: u5 p! |; o0 e" j
- * Date: 2017/10/187 B( ~0 u; b( s9 Q7 h" `; d
- * Time: 14:33
. m* a% i7 g8 p - */$ G/ Q, B6 u1 v) h- T
-
$ r6 p- h. A# S; g5 S5 v - class SocketService
0 n* d8 D( ]& ~ - {( u: F q) d( w! S- C. e
- private $address = '0.0.0.0';
/ |1 w5 W% i K: o" ]: n0 Y7 H - private $port = 8083;2 p8 W$ |, |3 `2 r) h" V; a$ J
- private $_sockets;
- ] D' L* \" K& H% _8 x* Z - public function __construct($address = '', $port='')6 z# E: f9 _! z% N; j$ O+ G
- {
- {! \. Z0 J* m7 B - if(!empty($address)){
7 H+ @( Z0 n H. k7 S y - $this->address = $address;9 n+ W* Y% ]5 d9 n8 ~) c4 g
- }
8 F! }7 d$ q8 | - if(!empty($port)) {
& Q0 C1 o9 f& l - $this->port = $port;( j7 [, G( ?9 j S
- }
5 I9 Y* {/ R G' d - }/ }- ]* i4 U0 [; g; Y
-
1 o- b5 ]" r9 i0 a1 Q5 I - public function service(){7 E; Z; I# o u- u$ C
- //获取tcp协议号码。) n$ e8 D: e- @7 ~* F
- $tcp = getprotobyname("tcp");" d- }+ w( K, i& L6 u* } S+ ~
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
' m1 d4 \! X% h - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
$ O& Y" v9 {, s - if($sock < 0)
5 p% `, D6 s g - {( R* [$ }/ F$ L2 S4 o% c3 i M
- throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");6 ?/ P7 \* w: u# {
- }) g7 t& W: @1 \4 O% X
- socket_bind($sock, $this->address, $this->port);: e$ ~7 s5 I/ b" t# C# v7 L+ b
- socket_listen($sock, $this->port);
( ~; z2 c& @$ I U4 l- N) o - echo "listen on $this->address $this->port ... \n";- m6 f( I5 y+ N: I. ?9 S0 u
- $this->_sockets = $sock;- V! I7 z3 f" q* k4 k" L
- }
# f5 e6 J) v7 [$ ^) d - , g) j# F3 d! H; s
- public function run(){! H& V' h" x6 q5 J5 }* |- H
- $this->service();5 @6 c& P0 {( F+ z
- $clients[] = $this->_sockets;
0 _) B7 O) N- V' J4 u" K - while (true){' C% n# B% f$ q9 M; F3 M# O
- $changes = $clients;
: V; H, q; j# U, Z; s* _6 `# i+ T: H - $write = NULL;& W+ b& t* x8 F0 E, _% P6 d" ^
- $except = NULL;
& E/ n; }: [1 O9 A w, o. I0 | - socket_select($changes, $write, $except, NULL);
' D/ _! @4 y/ [" p - foreach ($changes as $key => $_sock){
/ K& Z7 ?+ s# h# t, D9 g - if($this->_sockets == $_sock){ //判断是不是新接入的socket
5 A7 }9 k' _1 g% j - if(($newClient = socket_accept($_sock)) === false){
. I$ W+ q, Z% _! _* S2 l - die('failed to accept socket: '.socket_strerror($_sock)."\n");
0 Y/ U/ R2 `5 j" Z6 x6 ?1 ? - }
- u, L W3 d1 E6 \ - $line = trim(socket_read($newClient, 1024));
. y1 J5 f- p) f/ u - $this->handshaking($newClient, $line);0 z/ R2 h0 p( c% j2 K8 r4 I
- //获取client ip" Y* M0 e/ x3 t2 v
- socket_getpeername ($newClient, $ip);
' A# y& W1 C+ @; g% G: b9 | - $clients[$ip] = $newClient;
3 L4 y8 }# w. ?9 h8 O - echo "Client ip:{$ip} \n";
3 e3 I ?$ _$ @! j - echo "Client msg:{$line} \n";
6 P. y- O& o5 z; V/ P/ } - } else {0 R! c% ^* z( p/ J$ `
- socket_recv($_sock, $buffer, 2048, 0);
* ~' [( o' l" V3 J - $msg = $this->message($buffer);; v+ W0 G, ]0 x% p" B
- //在这里业务代码
) }6 _* y) ]9 L. ]2 v' v6 P% }- r - echo "{$key} clinet msg:",$msg,"\n";; `2 D" W! p. Z# K$ h1 ?: V5 R
- fwrite(STDOUT, 'Please input a argument:');
+ p, F2 s( P, R! L - $response = trim(fgets(STDIN));
' P! C1 k9 z2 e. r8 W9 u2 G" e/ J - $this->send($_sock, $response); l5 }: F! v/ y: Z" K
- echo "{$key} response to Client:".$response,"\n";# E/ N1 J* J3 X6 h3 k7 F
- }
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- }
/ L* p7 S! @6 n+ d - }
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8 x5 B. g. h; M; M1 w- i2 {# v" A - /**, |. V/ u* X5 g% t3 H, L2 Y
- * 握手处理
+ h$ L- }. x+ G) B: `: c/ b - * @param $newClient socket
2 U! i1 _* f, r- c+ H7 W) E7 X - * @return int 接收到的信息: |1 ]6 v3 g, _
- */
' w0 {/ k( `: O* l/ V - public function handshaking($newClient, $line){+ q$ B& K' }7 x" U4 {
- , V" {6 D% s' q8 b3 W& y8 T
- $headers = array();
0 ]. Y2 @" L5 ` - $lines = preg_split("/\r\n/", $line);$ l2 u* Y( U' |& Z0 h* K7 G: E# i
- foreach($lines as $line)
; ^7 N1 ` x3 s) o8 o$ b5 ]* L - {
% \* `& O9 l$ `3 p - $line = chop($line);
7 B7 m2 {+ A& y - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
) a6 [" g* e [: [7 e - {
3 l' h+ I. @0 [ - $headers[$matches[1]] = $matches[2];5 J" c$ j* v1 m7 O5 l8 K# I; W
- }: R m3 n! J" k" ]8 |
- }- H3 N% |, K- D& T) \
- $secKey = $headers['Sec-WebSocket-Key'];
; a) W9 O O o/ e: M+ O* r - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));1 C8 H" s3 x. u
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .* Q2 H: P" {( R% Z
- "Upgrade: websocket\r\n" .6 T% r9 h; m) | A# ]9 e
- "Connection: Upgrade\r\n" .
6 {6 f5 A- s; r$ E: e - "WebSocket-Origin: $this->address\r\n" .' [+ ?/ T/ b; W
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".0 ^: U! @9 i3 Z. R+ d4 j$ [
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
4 S6 y. X- E' [( e0 v& x - return socket_write($newClient, $upgrade, strlen($upgrade));: K# }( G0 Y. a7 I
- }
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- /**6 |. \5 M$ y: x4 Z# V- R @
- * 解析接收数据
# m4 ?( r! A& t o \# R1 M - * @param $buffer) F% {. X4 i2 }- J% o7 n9 | q
- * @return null|string( ~, G4 q! _( }: N
- */
7 |/ m. a, q$ h9 A1 z& Z" c) _ - public function message($buffer){$ S% g4 e" j9 ?$ r0 G
- $len = $masks = $data = $decoded = null;9 r/ P$ o# X; \7 ?2 C) e3 C
- $len = ord($buffer[1]) & 127;6 e; R' U& k0 _- \9 O
- if ($len === 126) {
+ [2 n" N: s& V - $masks = substr($buffer, 4, 4);
' H/ O+ p5 L. i - $data = substr($buffer, 8);
+ m, J e0 m/ r9 z, u - } else if ($len === 127) {
' K9 G5 e& A H5 z2 f) l u( P - $masks = substr($buffer, 10, 4);3 w$ V$ y8 _, q z! P
- $data = substr($buffer, 14);
# o% I) {" l+ {* n! L6 Z* Y% Y! m; } - } else {
2 \8 n s9 r/ Q [5 g - $masks = substr($buffer, 2, 4);& [# i( R, t2 ~0 `6 r, N. C; V
- $data = substr($buffer, 6);& b& a) k- H6 \% o& R6 ~
- }
- {: _* x: \! A: o& B4 x( c - for ($index = 0; $index < strlen($data); $index++) {
% I! } X5 X* @/ |3 ]) T4 Y - $decoded .= $data[$index] ^ $masks[$index % 4];
6 J! Q9 ^2 @ ?. b: W, T - }
5 `* i# t% ~7 H7 K2 W& c2 E - return $decoded;7 t' w6 v# Q; {9 l* R+ s0 c
- }( Q! t7 Z) `& P, M' Z- ^
- & g5 I) i$ ~9 w2 _8 c: j
- /**# S2 r1 k- o+ ?: O3 J( v
- * 发送数据0 x! Q. ?9 B4 H( O9 |
- * @param $newClinet 新接入的socket
5 C/ \; w" l% J3 y - * @param $msg 要发送的数据
' `( k$ T; Y) K - * @return int|string
9 C: {# Z8 R& E3 a: _ - */
# y2 j% U7 X8 D) ?' Z - public function send($newClinet, $msg){ n0 |$ i9 H+ e) K3 X5 P
- $msg = $this->frame($msg);5 j) i( G* @3 \: {; S4 s1 ?' l% F
- socket_write($newClinet, $msg, strlen($msg));
2 @- R' ?: h8 e6 R. K, k+ F - }
+ y% H7 _/ @+ ?% F# w2 x# W - 5 C9 t6 o' k9 G% l: G2 v% M2 ]! h
- public function frame($s) {9 u# T P& k$ F( D9 }
- $a = str_split($s, 125);
: Q0 w% Y2 e( S0 q; i. R1 \ - if (count($a) == 1) {
! [9 [. _! M! W1 v3 a0 M - return "\x81" . chr(strlen($a[0])) . $a[0];
# k; ?! N& W& w. k% n( ~4 y - }
3 i) c( _7 S* e6 c Z, [ - $ns = "";- m6 m2 h) `4 t3 m3 M+ ^5 e
- foreach ($a as $o) {, L& |( N! n( s" ]5 K* }* G# c+ m2 l
- $ns .= "\x81" . chr(strlen($o)) . $o;# E9 \/ r# X& v8 p4 }5 I, y! W
- }! x0 D' u# o" u; ^: r% R
- return $ns;
* \3 v% }% {) ^9 P/ b* M. t8 l0 z; k - }
* u3 `! d, I/ Q/ U2 f8 J - : U* A, D7 P( K) f
- /**2 Y! \( u9 M! {' D# d9 r
- * 关闭socket. E5 T: l k! j I# K
- */
' o" x% s( ]" J: Q5 P# R$ t - public function close(){
% Y3 X* n4 d1 e$ [ - return socket_close($this->_sockets);
; o# p$ m) F6 F0 U - }% a2 w: x& K+ ^
- }
* h" h8 Z6 O! U T" ?9 a" @ -
1 m, F2 O ^& R# F3 { - $sock = new SocketService();
' z" Y' ?! a ^* o( ]; j - $sock->run();
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复制代码 web.html
: g3 W+ l) s% _+ ^4 v- <!doctype html>( n `/ u$ ^4 D4 O% ?
- <html lang="en">
" W$ `5 s- `! Z - <head>
1 ^: J* c" H& H! I$ U. a0 \1 I - <meta charset="UTF-8">
$ `# F2 S* z* k4 q - <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
/ g& t! o2 r% ]' P - <title>websocket</title>" c2 u! \$ W3 D6 ]. y
- </head>9 ~0 w6 z2 C; q" v5 j3 A
- <body>
) u5 l$ w' _$ F) T7 |7 b7 ~! d' p. q - <input id="text" value="">
& f; E! g1 S& n T; |7 t2 Y - <input type="submit" value="send" onclick="start()">
' I- I8 ?! u' { - <input type="submit" value="close" onclick="close()">
1 T2 Q# L0 ~* _& m - <div id="msg"></div> M4 ^: t9 j* ]9 j0 s9 f$ O2 X
- <script>% O& ]! @8 L% n1 `3 A# n
- /*** ]/ N9 }/ T* d/ L" ^2 U3 G! }) c! h
- 0:未连接. \& G6 F% D9 [4 |+ A" v& k
- 1:连接成功,可通讯
`; n: u" d- w" Z4 k5 i+ n - 2:正在关闭
. x+ q9 S# N- ^; U! F% a0 X - 3:连接已关闭或无法打开/ f6 I0 a( {' g% z9 x3 n- w
- */) E1 ]3 P2 h9 U K( b9 A0 ]
- . s8 v' y. F ~8 s* l; `9 }
- //创建一个webSocket 实例% d0 E. L/ G# H& [
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
/ Y* n$ U V' ~" A+ Y8 R - ( K- B/ y' [$ ]# j6 Z3 x
-
7 }8 k* o6 d& t/ |6 q" K - webSocket.onerror = function (event){
" i" ~$ A0 a6 |" d" X3 \/ P - onError(event);
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-
- R [5 Z3 W# b& l& `; M+ t b - // 打开websocket* n, u! B. i6 g8 [9 E1 v
- webSocket.onopen = function (event){
5 y/ b3 X. u' z" o - onOpen(event);
& m9 e Y- V% C/ \. K - };; h, k- Z. f. G
- 6 p" l( `" j8 S; B, n1 Z
- //监听消息
8 j; o2 E2 M! V7 {9 i, Q - webSocket.onmessage = function (event){
- M) K3 v0 f }2 H - onMessage(event);* s/ Q' g9 a2 R3 n6 [' D: N
- };
, G! p9 G; i- }% U1 } -
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- webSocket.onclose = function (event){
( x. d. y) E, ~7 _' w - onClose(event);
( I3 C0 p( r3 R0 _ - }' I& G6 D. {) m# }( B
- " Y* C" \+ N+ ]9 w, ?8 v
- //关闭监听websocket
) q8 ~# w6 v/ } _8 A9 I' b4 }# Z; [ - function onError(event){
$ T4 _" v' K6 r) M6 l+ ~& ] - document.getElementById("msg").innerHTML = "<p>close</p>";
! P# m- c. a. \5 y" I) l6 R' L - console.log("error"+event.data);% _' n! ~9 k5 L
- };
2 I/ Q. P r+ Q) n" W& f" r' I - % [/ o, Q4 l! T# D& i
- function onOpen(event){' m( w8 T K1 x
- console.log("open:"+sockState());1 M4 W' }9 t b1 _; F7 e# y
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
% F1 p% h0 s. u) [, B6 {( i - };% E& z4 \, W. @: K" ]7 M
- function onMessage(event){$ `0 q Z+ }+ s0 [' \
- console.log("onMessage");
8 Z( Y& t0 A. z. f/ O$ [( @* N - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"6 Z, l5 Q$ E6 R! \
- };# t- ? o4 f+ g
- 8 H8 u: ^* F ^, l. U$ Y: C/ v+ l4 A
- function onClose(event){. T2 a, }! r' k
- document.getElementById("msg").innerHTML = "<p>close</p>";
: e* U- ]2 m# { - console.log("close:"+sockState());
+ h1 P: b) y0 Q8 ~0 H2 Q3 J' M) s - webSocket.close();
% a; z6 y! P* f5 ^1 } - }
3 t4 d' g/ {$ j) d& ~: _ -
2 ~ c5 t/ }. y9 |4 A& L! ` - function sockState(){
- D0 _$ o9 A% P* k3 j# ~ - 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'];1 z' B% o8 n# M9 R- E5 X
- return status[webSocket.readyState];
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- & D, S: _; l" d/ i- n
-
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- function start(event){8 w( K- y# [" T8 x/ m' L1 ~
- console.log(webSocket);$ i* g8 U+ k; f% y9 K5 u4 m' [9 |2 [
- var msg = document.getElementById('text').value;
' M6 ~ b) _$ r% `) O4 _# K } - document.getElementById('text').value = '';
4 l; O; \; Z* a7 R5 R: Y( R - console.log("send:"+sockState());
& Y' y( o+ b' E3 U7 j4 l9 v - console.log("msg="+msg);& O* ^" o* D7 K/ r- V. B4 x
- webSocket.send("msg="+msg);, f7 s6 Z7 y: T# D( a
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
8 z5 `5 {$ ~& p( i ]6 a) @7 ?* l - };
/ A) z* B; S5 Y1 w& R - . [0 [& y( Q# f& x/ h& Y
- function close(event){
9 M4 H+ l' Z2 z - webSocket.close();5 u: A! T+ O0 ?9 y6 ^$ D
- }' Z/ |4 f" o+ U0 a2 ]
- </script>
0 s/ U) m0 O' C* R4 K+ ^ - </body>
% G# E! t5 A! U - </html>
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