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php实现websocket实时消息推送
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% i7 N8 B9 |: c* oSocketService.php) K8 o! @# |- z, g4 U3 G
- <?php [; U0 D# K" g4 O6 h
- /**
1 a$ N2 N0 @5 ^3 k& r1 u - * Created by xwx
. a1 |6 e3 k9 I - * Date: 2017/10/18 t/ S* \3 m3 A* [3 v$ P8 w5 F
- * Time: 14:33, \! j8 l* E3 I! Z
- */3 i4 I# P" j5 ^+ u0 L
-
- h2 f' w2 x- n; e - class SocketService* ` t- G9 L b
- {
! F5 y4 [4 {& f4 q - private $address = '0.0.0.0';# H; p* }! w+ q3 P
- private $port = 8083;
% C0 o: c5 A) L% Z( i+ D - private $_sockets;
9 b6 O3 g1 S( x( M - public function __construct($address = '', $port='')6 b: \; b! B* b7 s: U# `
- {, {/ h2 X; M1 k x( s# U6 i
- if(!empty($address)){
) u: z- k1 L" e - $this->address = $address;
1 E1 p8 s* h" a8 v. m - }
: ]2 f8 d/ {6 w) z6 n - if(!empty($port)) {
7 R8 i4 e; C0 f+ o9 U. o" V - $this->port = $port;
$ Q; N0 P1 Q6 C& P0 b1 F - }# I% w: U- x% ~' V
- }
7 T, d( K2 C* `) J$ J -
( p9 X2 {. t) X g% b - public function service(){: s2 C& [) a- {( ~: b% o
- //获取tcp协议号码。5 V1 C# l, G' m- k( }3 }2 D
- $tcp = getprotobyname("tcp");. F( n0 u& C3 q% {
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);
4 ]/ ^) _% U" k - socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);4 u3 g+ t# }$ ~( k
- if($sock < 0)
# U0 z; g6 t( z - {
$ W7 o! O# p, B3 v( g: g7 T - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");! B( V8 ? L [4 X7 N, A
- }
& `: R$ ^, O* c J1 n h& j - socket_bind($sock, $this->address, $this->port);
0 M9 y1 S7 S+ \+ I* r - socket_listen($sock, $this->port);
7 l3 G' c) P6 z6 d! D/ T - echo "listen on $this->address $this->port ... \n";
7 }% X) b) r# ?5 F% L - $this->_sockets = $sock;- l" P" w3 l; }. Q
- }3 n ?: N+ V5 G9 x$ K
- ! p/ Q7 |! Q8 z: l0 L: H$ n+ A8 y
- public function run(){
: I& J7 x7 U% f$ |+ F) P - $this->service();! X: A& K5 f( C# O# f! y/ `
- $clients[] = $this->_sockets;3 s) u" g9 A4 D" K l# ?. ~
- while (true){9 X% ?& l! |( r* { G0 Q. k
- $changes = $clients;1 l3 [5 v7 s' H7 G# w; ^
- $write = NULL;
+ u" Z- Y8 y, w4 s. j' w - $except = NULL;4 m9 y, G( m5 F" B7 L
- socket_select($changes, $write, $except, NULL);+ n, D! V5 T& W; i6 g8 X
- foreach ($changes as $key => $_sock){5 g; u- R6 d4 E# J, q/ @0 l
- if($this->_sockets == $_sock){ //判断是不是新接入的socket
! P9 \* i. U/ x: T0 {, g8 Y5 @ - if(($newClient = socket_accept($_sock)) === false){# D. G" S9 m- ^9 }' _; [
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
" A. T$ \& P0 `% X& }" F - }
" s& P6 K+ \* q5 g; i9 {4 q - $line = trim(socket_read($newClient, 1024));
0 [+ A7 D' c: O. H) |* P6 J - $this->handshaking($newClient, $line);
. ?2 k; S( s) _ ? - //获取client ip
/ j/ v! z3 _+ g! n0 M2 p$ C8 u' q. }1 R - socket_getpeername ($newClient, $ip);5 M* F' I8 o, d9 J& C) `* u
- $clients[$ip] = $newClient;
9 P, x1 M" d% m X! b F7 I0 { - echo "Client ip:{$ip} \n";& e' f- x: F. K: T/ Z
- echo "Client msg:{$line} \n";
% `$ Y4 @6 b+ N/ ?5 } - } else {
3 o' v% u- f' [( R$ m - socket_recv($_sock, $buffer, 2048, 0);
7 R* P/ p' K4 ? - $msg = $this->message($buffer);6 D3 i) A/ B3 n3 z
- //在这里业务代码
' E" L' w1 x7 B1 {) n: R - echo "{$key} clinet msg:",$msg,"\n";
. y. q A8 y' H# H) D1 c9 D - fwrite(STDOUT, 'Please input a argument:');
, f( i9 l9 ~8 v) a2 J - $response = trim(fgets(STDIN));3 L. n6 l5 l# \
- $this->send($_sock, $response);
! x( P/ p3 a j" Z9 T* @ - echo "{$key} response to Client:".$response,"\n";. m( Z; r5 y1 s2 k5 l
- }
% ]( D% f) i; I. r { - }9 y3 _7 d7 h2 q) u. i; o# {
- }7 ~$ d+ W1 I$ w1 r: r8 y4 H7 Z
- }
* r3 Z3 C; p5 O$ e3 Z: k) b+ Y -
. B( b3 ^ G k: b& O- p7 w# F - /**. K1 [% m4 Q0 H3 N
- * 握手处理+ @' |& G" g6 V& u I3 j
- * @param $newClient socket( Z. {* Z1 Q. S+ h& i$ \& D
- * @return int 接收到的信息( M* C/ Z7 Q! }3 {
- */
% ~' d$ i; c" w& l3 q+ ] - public function handshaking($newClient, $line){
! A' ~6 M; [9 W( h1 H0 l7 S) V - & y8 U9 G' O. }+ Z. v' `
- $headers = array();
& j! y0 [; @2 A* R: v - $lines = preg_split("/\r\n/", $line);: A/ J- S2 I, E; C
- foreach($lines as $line)6 q% ~; A4 I1 _9 T; G4 L& ~
- {* D5 \; |1 F! d- d
- $line = chop($line);
' |6 \ W/ t7 d1 a e0 \ - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
( S7 n3 ]5 z3 v3 m - {5 |' L n Q5 Z. _
- $headers[$matches[1]] = $matches[2];
& I4 e+ z. m+ c) K! r0 W - }& W! }0 Z8 `: r5 x+ I
- }7 D# ]: @; k; z# d0 Y
- $secKey = $headers['Sec-WebSocket-Key'];. ?$ J/ G' E( V' z% ^$ _
- $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));* p8 ~4 l& E) Z0 r* y
- $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
2 D/ P1 o* v1 }' a- A - "Upgrade: websocket\r\n" .$ l6 z& d% q8 K! {. [! U
- "Connection: Upgrade\r\n" .
7 s$ z9 `+ n$ I2 J$ |$ P3 u- _ - "WebSocket-Origin: $this->address\r\n" .
; ^1 ~3 ~* A* H4 w3 F& ~ - "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".3 Q" O9 `- g1 E9 }
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";! B9 N' Z% I* V. q3 A* E5 X/ e0 U
- return socket_write($newClient, $upgrade, strlen($upgrade));/ @0 c* L# W- A/ T
- }% [4 M# L0 ^! m' w6 b) v; U
- 3 s# p" [% D6 k$ \1 D H9 u
- /**7 E0 ~% J+ ]1 |8 c
- * 解析接收数据
& u2 G/ m4 I8 S/ t; Q7 L& b/ z/ } - * @param $buffer
0 z% e7 w, M% z0 m5 h - * @return null|string& x9 q( P* q" ]9 l) H
- */
- t7 M, z; Q& G2 }: A( v - public function message($buffer){; n$ K# W7 q2 f
- $len = $masks = $data = $decoded = null;0 r5 }7 A$ d0 i' p! _8 n W6 B
- $len = ord($buffer[1]) & 127;. W) N' V) q3 |5 [5 O' d! |3 H
- if ($len === 126) {
" m( ~/ k$ N9 ]2 W! u3 y, ^6 S - $masks = substr($buffer, 4, 4);% K6 p. }. M4 E/ G& @% V
- $data = substr($buffer, 8);+ ~) j. N) X8 v
- } else if ($len === 127) {* @1 R( W) V& |* r( c
- $masks = substr($buffer, 10, 4);7 b4 a) A- f. q/ u
- $data = substr($buffer, 14);
8 A2 h' X9 e9 H0 E1 O& W - } else {) \" @1 g! ]2 {4 u9 C: I$ g! c
- $masks = substr($buffer, 2, 4);
/ E1 H4 U5 W; ] - $data = substr($buffer, 6);- E5 k8 d* Q$ e$ N
- }
5 j! j8 N5 c0 ? - for ($index = 0; $index < strlen($data); $index++) {0 F' N! e& [' u8 c6 n8 P: H
- $decoded .= $data[$index] ^ $masks[$index % 4]; T3 |8 e% r% F9 ~6 i3 p
- }1 n P4 [' o8 }
- return $decoded;7 ^. s$ s& F+ A& y# t
- }
" M) L) L5 D+ _) W -
( J5 X* @- V; A3 [4 t# D - /**. `! \9 I: q g. P, ]
- * 发送数据
8 E J Z# T. e' I - * @param $newClinet 新接入的socket3 G3 g: |2 R( C4 p9 B! h1 v. ?
- * @param $msg 要发送的数据- F5 h* @; |& H8 c! p. K$ ?
- * @return int|string7 \- @# _; E* I2 D
- */& |' v) w# t& V7 n
- public function send($newClinet, $msg){+ w% T6 u+ E9 S
- $msg = $this->frame($msg);
# s* C+ O: P+ S2 U- s' q' ?4 C - socket_write($newClinet, $msg, strlen($msg));" L2 n( U$ Z+ E# V$ ?, L0 i
- }- T9 L' V: Z; r* b
- 3 k& T1 e z) d: t7 f+ `' f
- public function frame($s) {
: Y, G1 j$ U1 F+ ?0 N$ c6 m - $a = str_split($s, 125);
( v3 y7 F. m( _3 d* y - if (count($a) == 1) {
" f: _6 r& d$ h/ x& s: _ - return "\x81" . chr(strlen($a[0])) . $a[0];
! y9 s0 k. {9 c' L% C T6 h2 X - }2 L: p6 M; `* h2 ^4 \, a
- $ns = "";
2 u0 s6 j, Q% [% v* F0 ~: k& N1 { - foreach ($a as $o) {6 K# `! |! H7 d+ w. H. j
- $ns .= "\x81" . chr(strlen($o)) . $o;
* Q% b/ I) e( D4 Y - }) o" e3 r8 {& {& _* P; H
- return $ns;
$ w/ B1 S: \/ A# M - }: g: N% D/ F$ X$ m9 f, M5 A l
- : F. [6 w7 U7 A5 e- o5 ?% \* g' j
- /**
7 c9 V6 |1 R- z& a# T9 {2 i7 {: N - * 关闭socket
2 L, U0 { e; ^4 R* E9 w$ i- w l - */
0 M, b6 e5 b% o$ p - public function close(){$ g! z% j- D% x4 A! l2 ~- [& H t
- return socket_close($this->_sockets);2 O) ~1 M; g; t- E t
- }
0 w+ _% G! P9 ]6 u. F6 L - }: `8 e3 b. p3 t- W" T
- * v2 m* v6 |* b& a: @& t! o
- $sock = new SocketService();3 a: K: N1 ^" O* w. D6 o
- $sock->run();* Z; u* R1 `1 Z' s
' k1 y# k* R. y6 ?5 N. ^* m+ [
复制代码 web.html% O4 X4 @! m7 I- X7 a7 g
- <!doctype html>' h- B2 e0 g: k' A
- <html lang="en">
/ y+ H0 H0 ~, @0 _ o& Z" Q/ d - <head>; K& v8 C! [! l$ R' ^ G
- <meta charset="UTF-8">* X8 i- L4 ~( g {' p
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
9 V' k9 C# i) ~8 N, a! n - <title>websocket</title>5 A2 l/ n/ w0 Y7 c% L& i" ?
- </head>
5 w7 ^7 t" |/ O4 S/ d - <body>
K; G" s1 K) `8 Y# D8 \1 L; A7 p - <input id="text" value="">. r: |5 t4 F# ~' I. C9 R
- <input type="submit" value="send" onclick="start()">; \7 ^% b: }" s6 t$ L
- <input type="submit" value="close" onclick="close()">7 d* \+ Z# _( t% l, u3 I
- <div id="msg"></div>
2 E7 _$ d# D# X- v: x i, Z: z: k - <script>
" b6 a+ n, {1 L - /**2 ^, h! }9 J& O! _3 U7 N: D
- 0:未连接
) |5 I* P1 B* w& g9 O m- n - 1:连接成功,可通讯% U* t+ Q1 r1 i4 U; Q6 m
- 2:正在关闭& n* C/ s; ?" N7 f4 L2 h
- 3:连接已关闭或无法打开) n: y1 b* L% Z' f9 e
- *// T# N }5 j ?6 E
-
2 b: @( j2 E* |/ J7 f! D. L - //创建一个webSocket 实例0 a+ U" z2 p+ U& `: V
- var webSocket = new WebSocket("ws://192.168.31.152:8083");$ _9 z! R) j5 P+ r2 C& ]8 K& d6 U% w
-
+ L0 N- @6 q# v! m' f. G7 J -
- J# Z# m/ p& t N+ }. a8 j9 g5 K - webSocket.onerror = function (event){
) p1 A: U7 S7 e0 E - onError(event);& j" _7 x5 ?6 _
- };+ w$ O- C/ b5 d
-
# G# X# K! {) | - // 打开websocket: d: i: R3 y9 F" y7 n9 Q% U6 A1 j4 a
- webSocket.onopen = function (event){1 }" ]& d. v9 d+ G9 F$ A& S
- onOpen(event); M6 O% |2 U$ l! c
- }; \( X3 K. X4 P# n
- $ Y3 [4 [+ r% `7 o. A
- //监听消息% f6 j1 W* Q' C; E
- webSocket.onmessage = function (event){
& I; ?) _: X1 G6 \ - onMessage(event);: y8 j1 v6 O6 a6 t
- };; p8 G5 q& S! P
-
J1 W+ ?8 [) s* m% b -
8 l# W7 @$ ^, s8 Q: F - webSocket.onclose = function (event){. ^- V7 e' e3 [6 N3 {8 O' M ^7 M0 Y
- onClose(event);
# Y% b- J( A& ~0 S5 b! G7 O - }5 B3 _( m. Q4 Q) b. A
-
% w+ x" z) n+ i$ z - //关闭监听websocket
8 v7 ?" f1 s8 C% _' Z - function onError(event){! o y H" u5 k6 y; o% D, r
- document.getElementById("msg").innerHTML = "<p>close</p>";
' G; i$ H# ?2 ?& b. y6 H1 ` - console.log("error"+event.data);
2 ~, E( Y5 n1 Q6 E$ w8 E, v" U - };- j) }, p4 o( }. M
- $ l5 Q& a/ q D3 j
- function onOpen(event){
% v; B1 E. q, G6 z - console.log("open:"+sockState());" i7 r* x" }3 {2 w+ @- ~) H: \
- document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";
/ K* Q5 E& a% L7 { - };
/ y1 B& q$ r6 w" C. a. F s8 D1 Z - function onMessage(event){
) h$ \0 A _" n$ S - console.log("onMessage");
/ N- _' G- P+ P8 W- \- J - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
D# g. ~! g {4 P. g3 q- h - };
8 m' K% C L) p+ p' X! I -
7 E) p; e0 ^ a - function onClose(event){
3 ^0 e) g# W- M - document.getElementById("msg").innerHTML = "<p>close</p>";
- {1 @& M$ W3 S+ ?2 l - console.log("close:"+sockState());
* {, W. u O& B, r9 } - webSocket.close();
* ?. h' A' E- I5 g# R v! T - }7 M# j5 l4 a l+ @
- : B! [# }1 M' [4 c
- function sockState(){
+ V* |) L% r, W/ l1 f; ] - var status = ['未连接','连接成功,可通讯','正在关闭','连接已关闭或无法打开'];( n! X: Z: k' T& \
- return status[webSocket.readyState];
( Z' B$ C o. Y7 s( r, ]6 {( `$ T - }
5 G$ _+ O ~! q" i. n -
! a+ a3 \) M) C4 w2 h3 O: J; G - ' Y; I4 z ^7 h) q: T
- 8 N* Z4 o4 y1 }4 [4 T9 l3 `. g
- function start(event){2 I5 \' Y& |; d4 G9 _0 o$ b
- console.log(webSocket);: k5 E7 P9 N: f' N2 @8 E; u, {* H
- var msg = document.getElementById('text').value;
: h* C. t. `( c3 t: a - document.getElementById('text').value = '';2 P8 \; m$ `( \1 O c
- console.log("send:"+sockState());
7 v! ~4 o% i# c9 R - console.log("msg="+msg);
& @* k3 R9 I: r4 ~" k. z+ n, c - webSocket.send("msg="+msg);$ A, w$ C& Z/ {* p
- document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
( Y7 d, `8 {4 [$ I) d. ~8 K - };( t0 h& V1 d4 _0 _* d
-
3 ], _ w$ `# Y h, O, t2 i - function close(event){
1 @: |1 \5 A6 o% f" s - webSocket.close();
5 h) d. s0 O+ ]- s6 K R3 E - }
# D' {2 m% c4 z# A5 k& Q) I - </script>$ m K' B; _4 W( n! s3 \
- </body>
6 z7 T7 U5 ?4 K0 g% @ - </html>
复制代码
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