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php实现websocket实时消息推送
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SocketService.php0 T7 u& m% v. Q
- <?php# ]8 X7 ~1 R2 x& E# ?9 j: ?+ ~* ~
- /**3 J9 s6 \1 Z4 i8 r
- * Created by xwx! Z+ S) w! Y, G6 B
- * Date: 2017/10/18
, e% p' L$ V3 _ - * Time: 14:338 w7 d! E0 ?# l& {/ V) \* D- u" X: c
- */% H3 r6 Q. L& E+ d. a1 q7 {
-
/ ^* C# M: `0 p( ^/ N8 l3 b - class SocketService
% \ g7 _) {4 x* v7 D3 ~- ] - {
$ e. @, G+ k5 S. } - private $address = '0.0.0.0';0 P* H3 u6 a, e
- private $port = 8083;
7 G6 r- K* x# p! T. w8 k - private $_sockets; h- M" C. {. ]) J
- public function __construct($address = '', $port='')
4 e! `3 q7 {2 b) s6 S. b: w- E3 t+ V U - {
6 @# c9 R" Y A! ^* N - if(!empty($address)){- a: ]! k6 I5 _; P0 R# W" p
- $this->address = $address;; B) w* C# k h3 X4 h! k0 K
- }
! ~$ x/ o W( z! l% X& u$ I0 b+ i - if(!empty($port)) {
" ^. _' ~: I0 { n. C+ ], D- k - $this->port = $port;
7 r. y; W$ ~- q# |6 [0 c - }0 r6 a" s8 \1 S! _/ h
- }! e( j7 k: O; ~" }% P% C. @" a
-
4 D0 M, Q% {) M, g* W - public function service(){
# x# C. L/ [! W* F* h) a - //获取tcp协议号码。; a$ [) Z- O- c+ E3 c* ?
- $tcp = getprotobyname("tcp");# j! a( {" O4 O
- $sock = socket_create(AF_INET, SOCK_STREAM, $tcp);% x5 x! J. c3 s. P7 u
- socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);4 W8 z2 I8 b& k' G( Z
- if($sock < 0). ~" q( v, r I
- {
6 C4 {5 F: f) Z6 v# L2 D - throw new Exception("failed to create socket: ".socket_strerror($sock)."\n");
9 X7 I- Z& I0 R) \; R - }
+ v% m$ T3 m8 T9 C0 i3 R& m) B - socket_bind($sock, $this->address, $this->port);
1 t3 I. u0 H: ~. e3 f - socket_listen($sock, $this->port);
- `8 g* ?- q& i! b) n - echo "listen on $this->address $this->port ... \n";" x) S; O; `+ C% k% [0 {! }
- $this->_sockets = $sock;
( H! i l& N4 M - }
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- public function run(){2 }$ Y) d8 L' x
- $this->service();" `; _! \% C9 l6 Y+ R" P6 R
- $clients[] = $this->_sockets;/ \- F# U8 E# j- {* [
- while (true){
2 y4 t) [1 g; C' @, s) o( a/ b - $changes = $clients;
* A& ~# x: y1 v. S - $write = NULL;0 ?: E& b- t7 S6 Y1 @
- $except = NULL;. O4 S% t: [* ^9 |/ F
- socket_select($changes, $write, $except, NULL);3 V" Q3 N$ Y, I5 _ o ]
- foreach ($changes as $key => $_sock){+ ^: E8 `3 I5 Z* j; {7 s
- if($this->_sockets == $_sock){ //判断是不是新接入的socket& K5 F' }+ P: J% P3 |
- if(($newClient = socket_accept($_sock)) === false){. o8 C4 C5 ^) q1 C4 N" y
- die('failed to accept socket: '.socket_strerror($_sock)."\n");
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- $line = trim(socket_read($newClient, 1024));- {) a& U: G1 t: I0 V- m
- $this->handshaking($newClient, $line);
2 b3 c; S" F4 N - //获取client ip9 Z- T2 C1 ^+ c+ N4 |) b1 o
- socket_getpeername ($newClient, $ip);
/ i; T1 C8 ?& H4 z - $clients[$ip] = $newClient;& |7 s3 {3 q$ N2 x) I, @$ R
- echo "Client ip:{$ip} \n";. @# M- q1 S- C8 v. f$ n) `
- echo "Client msg:{$line} \n";
' ?0 ]7 r5 u) z/ K* g ~$ X - } else {" O5 ?5 O/ ^& L
- socket_recv($_sock, $buffer, 2048, 0);! h, T% {1 J Q+ B4 p
- $msg = $this->message($buffer);
6 V; r9 \4 E9 N9 z( a - //在这里业务代码
* x ^4 j, Z$ w - echo "{$key} clinet msg:",$msg,"\n";
6 e0 y0 H0 p1 s3 K$ } - fwrite(STDOUT, 'Please input a argument:');2 C. m# H3 ~, z: a7 C1 u& c
- $response = trim(fgets(STDIN));; F2 ^. Z$ o4 ?2 ~# O
- $this->send($_sock, $response);) ]9 x p4 m6 k& K. C1 Q
- echo "{$key} response to Client:".$response,"\n";% K- n+ u7 s- u" y* M
- }, e' X6 G$ f0 P7 a
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- 5 y" Q0 g% x2 D6 ?% u
- /**
0 i o8 Z- V! c2 p3 [1 q+ K - * 握手处理# A, S6 V5 M/ g( V# J$ J
- * @param $newClient socket
9 y5 j: T7 R2 i; S$ J - * @return int 接收到的信息' y1 g, y0 C5 O, Q! m# L
- */4 p4 b, i- B6 X6 C5 ?8 D/ a
- public function handshaking($newClient, $line){
" T" s' c- X, b" f: ^ - 9 E/ u$ k0 ?% y5 D5 p# B9 c# L
- $headers = array();
$ W4 ^+ _/ Z& c# K; v+ W. S1 v0 Y/ R - $lines = preg_split("/\r\n/", $line);
$ G! |1 t* i5 z - foreach($lines as $line)
9 Z4 v1 n) t/ o2 U/ m+ k" o$ d! | - {
0 \& w8 p$ V) o9 b& g: C; f - $line = chop($line);
* G" S4 e6 z/ m" F7 `4 e - if(preg_match('/\A(\S+): (.*)\z/', $line, $matches))
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- $headers[$matches[1]] = $matches[2];! g4 G* I4 L% _$ g
- }5 Q0 v, q, {4 D) S- W
- }
, m w# s0 @3 g+ h% X - $secKey = $headers['Sec-WebSocket-Key'];
X1 }" i# C1 e - $secAccept = base64_encode(pack('H*', sha1($secKey . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
) }8 s0 R, S* i, a, }$ w3 D" j( U - $upgrade = "HTTP/1.1 101 Web Socket Protocol Handshake\r\n" .
$ g5 H4 R" P# p) O9 A - "Upgrade: websocket\r\n" .
% Z: ?' m1 b, Q4 d" W& {% c0 k - "Connection: Upgrade\r\n" .
: X5 a! M" }3 ?% U. _# F& l% n - "WebSocket-Origin: $this->address\r\n" .1 f8 C M% s$ C/ I# ~' n
- "WebSocket-Location: ws://$this->address:$this->port/websocket/websocket\r\n".. h+ o5 X; u( o! b9 O2 N( Z
- "Sec-WebSocket-Accept:$secAccept\r\n\r\n";
h8 m/ K. ]' @3 d7 {. i* |% Z - return socket_write($newClient, $upgrade, strlen($upgrade));* X, |5 j" B2 ^
- }. Z1 I4 S L: u- p4 H9 y( K
- 9 J* ~' W' h! p& y: g; _
- /**
$ w& E6 K4 V: Q6 @ - * 解析接收数据
6 y& k* H3 _& P! {: x: h/ r5 ^ - * @param $buffer
8 y1 F; Y" V0 ~; Z/ } - * @return null|string
4 B" l1 w+ P3 r% I" C, q3 B0 q- ~ - */
+ R% F# @* } b3 C - public function message($buffer){
: f4 {9 _* M! O0 j6 h - $len = $masks = $data = $decoded = null;
- g/ {" {/ c9 }2 a% a8 f - $len = ord($buffer[1]) & 127;7 Z, W' p" o+ J8 B" J" w4 {; t! s
- if ($len === 126) {5 H( D$ B+ B2 e1 o1 b
- $masks = substr($buffer, 4, 4);
! x# T8 V% F/ R$ I( A! C - $data = substr($buffer, 8);
* P7 E L# F! y0 R* v3 h - } else if ($len === 127) {9 X2 ]/ M* W y: ~& _* D
- $masks = substr($buffer, 10, 4);
) ~# g2 q" @: x) C/ X - $data = substr($buffer, 14);- b c ?7 u1 x0 \
- } else {4 ]" s$ N( D1 x9 W$ W2 e1 C+ O
- $masks = substr($buffer, 2, 4);0 r5 _2 d' V; q" o" ^
- $data = substr($buffer, 6);
# [6 }" v. Q& M - }6 m8 k3 h! \- m: U
- for ($index = 0; $index < strlen($data); $index++) {
& [1 J. j. J1 q3 o$ f* a7 G$ d - $decoded .= $data[$index] ^ $masks[$index % 4];! Z4 T; ~7 t! z& [ O8 v1 d
- }
; W* S* g3 @+ q( [: ^ - return $decoded;
) ?: g3 T# k/ R7 S; o- o* C5 } - }
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- /**) I9 {& D& s( U" K I% K5 Z
- * 发送数据
& M5 }! s- C$ Y - * @param $newClinet 新接入的socket
( i$ _7 t% F" }0 ~ - * @param $msg 要发送的数据; i( c2 u$ B: T/ Q# G% T; R: I! T
- * @return int|string
0 z* h) c( c% I9 d( X0 N - */, B9 |7 Q" d6 \/ s) J3 _) ~
- public function send($newClinet, $msg){) j3 R6 c+ y0 H/ v* K
- $msg = $this->frame($msg);
3 u9 F# v* [* k/ w: Y, q - socket_write($newClinet, $msg, strlen($msg));
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-
. I; A6 a0 ]8 A, ^" x" x" L) m - public function frame($s) {
& b" I& C/ C+ ]& ?) y* B - $a = str_split($s, 125);/ J( r( Y! \$ @2 s; D% F6 K
- if (count($a) == 1) {
+ _0 q% T5 s/ c2 X - return "\x81" . chr(strlen($a[0])) . $a[0];( A, i, j L) U, ~8 P
- }
, l* f7 ?! ?7 ?% {! \$ g, c) K9 K - $ns = "";3 s2 k1 B, l# U: [
- foreach ($a as $o) {
V M$ n4 F- N. V0 B8 m3 z - $ns .= "\x81" . chr(strlen($o)) . $o;! i) n; G Q% d" K, {9 m" T. S4 A
- }3 f+ O" w8 @& a$ @ ~( g2 b# q( B
- return $ns;; ]. H" f2 l! n6 Q/ S
- }0 O' n E+ q3 \ M- s
- 2 S3 T. h' o% \7 [" e
- /**$ E+ s$ E# F& G8 ~# g/ [) [
- * 关闭socket
( H; {% R* B2 w% z0 Z& z# V - */3 X- \: v4 i$ G, @! L9 l
- public function close(){
( \- }6 ^6 m6 f - return socket_close($this->_sockets);% ^$ k' B2 A# C' ?( j' m" z" j3 O
- }; W/ ^8 a/ r/ k9 Q I. x
- }
( H, Q: g/ [( |0 K* ~2 B6 F - # d- j7 b% s. h9 n1 N0 j; S
- $sock = new SocketService();
) A" n; u- ~, s4 E - $sock->run();. B! H( F3 P: ~2 @; s( T
- % C$ L s8 N6 n4 ~/ }$ T6 v
复制代码 web.html% h, O& Y7 [2 N6 C5 n( b b) W
- <!doctype html>
! W, S5 R. I* o0 L; G, L - <html lang="en">
6 j& ]3 i7 O5 X1 K! L - <head>/ C" @# T. [7 ]' p2 p
- <meta charset="UTF-8">: A! y4 c. b; H) J
- <meta name="viewport" content="width=device-width,initial-scale=1, maximum-scale=1, user-scalable=no">
5 o' U! Q( d/ | - <title>websocket</title>' A. E2 b' B% }0 l* f4 h3 i8 S4 K
- </head>- N" v+ d; I, A
- <body>
A' O# _8 t: G! @9 I2 G* G - <input id="text" value="">
' A5 `% `) V: n/ F, a/ S5 Z - <input type="submit" value="send" onclick="start()">
& e D5 w& Q) G - <input type="submit" value="close" onclick="close()">8 Z; C3 M/ s, B! b
- <div id="msg"></div>
) w5 K( E o* f% f$ ? - <script>
6 D' w# b' M. Q& b& A - /**: d1 E: j0 _8 v1 W: f
- 0:未连接
/ H, n8 b$ m8 N, O: F - 1:连接成功,可通讯
! C- N; b+ Y- [7 K, A5 S' z4 ^ - 2:正在关闭% k7 w h, O3 f2 O- i
- 3:连接已关闭或无法打开- ^/ Q! w) s/ y3 S
- */
! c! G8 H" M j - ) ^1 l$ ^8 Y$ b1 G {
- //创建一个webSocket 实例# U: v v- m6 M& [' @
- var webSocket = new WebSocket("ws://192.168.31.152:8083");
$ t+ L; y0 O7 W$ m# q -
- W( c& X E, v4 [) T: H2 ~ - * L/ P6 ^2 C- P4 _( k
- webSocket.onerror = function (event){
+ ]2 e; L: ^" ` - onError(event);
' [* _% m7 E1 O1 i - };
0 d1 D1 W3 V/ V" H3 X! c8 e -
& B: a- j# d/ G* G& O* p( S - // 打开websocket
" Q* @( A9 g. N - webSocket.onopen = function (event){% H. S, F8 r: }; e
- onOpen(event);
' Y0 R. c# y1 o4 E }* _$ R - };
Q5 v4 _3 `% d - , W* j/ q0 {3 ^, o" e+ s& I
- //监听消息0 h$ S' J1 a' r- v2 l
- webSocket.onmessage = function (event){% }$ p0 U9 T# g8 ?. U5 ]
- onMessage(event);
& a1 c2 c" B0 P% I0 N) g - };7 v( {' k9 T2 Z; n9 D' r
-
+ o# q* e/ L% M) X - 3 G: z4 @* L; \+ O8 x6 W1 w5 ], a
- webSocket.onclose = function (event){
& x- s& m9 e0 w( P2 v# S - onClose(event);- O! p$ x7 A4 k/ |. K/ g
- }
9 p P' j, y8 T - ; r6 K; I x9 s3 h5 T1 c
- //关闭监听websocket$ @1 f% o# G8 z: ^
- function onError(event){
( f5 c9 R" Y4 p8 u3 l c - document.getElementById("msg").innerHTML = "<p>close</p>";" }, f5 o8 |4 n, R: ?# e; T' t. W
- console.log("error"+event.data);5 t! `. `4 s |! J5 j8 x
- };
! T! {* G; Z; n/ P& N2 ~' b - ' g6 n& U% F5 a5 i; @" E
- function onOpen(event){/ ?2 Y! `: P# A
- console.log("open:"+sockState());
, ` ^- ?& R* D! O( w - document.getElementById("msg").innerHTML = "<p>Connect to Service</p>";3 V0 ]* D8 t+ \" T9 k
- };
! v& ~6 l5 W5 F" [3 o1 C- g$ w; i - function onMessage(event){! `5 a5 {/ G4 \( _, J- c N6 T5 v
- console.log("onMessage");
+ M1 q! `( w- N, B, e; i - document.getElementById("msg").innerHTML += "<p>response:"+event.data+"</p>"
( T0 K" j( j0 i/ s7 D7 L& { - };
' K% {2 H" ^' A0 z0 B -
5 V& w' u& d4 o2 m! _ ? - function onClose(event){
0 X }# a# b3 x - document.getElementById("msg").innerHTML = "<p>close</p>";* l6 {! X) N* B( M/ p
- console.log("close:"+sockState());8 P; K/ [1 h- N0 v
- webSocket.close();
$ ?8 u7 R& n7 T! g3 \( u- p) g1 M& a - }
, O9 r+ l4 c6 E4 m& u - ! i/ v3 T) _7 L" y% ]" u9 ?0 b+ y
- function sockState(){
9 {+ ~& u7 B" |; B) _' c5 A - 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'];9 r9 \6 X7 v. r t
- return status[webSocket.readyState];
[' m$ b8 g+ h" o; F - }# @- y; M1 i2 S }: d, V
- n* V! N- _7 o) A# b M) L
-
* q7 W( X; I: Z ]# Y9 y -
" r' Z' x5 j# E) x9 b8 V+ D. ~ - function start(event){
. _: g! H! n i6 A - console.log(webSocket);
' w+ b3 n" A# f3 r - var msg = document.getElementById('text').value;
" u M- ]- l' _ - document.getElementById('text').value = ''; h( C+ H8 O7 ]0 ?! a% s' b
- console.log("send:"+sockState());
- f7 Z$ G4 v w- r% Y - console.log("msg="+msg);
, p$ n) M- K" s# T% r - webSocket.send("msg="+msg);
0 y( l2 f: y" m( u6 v - document.getElementById("msg").innerHTML += "<p>request"+msg+"</p>"
; v, b) P; d3 R5 W - };* y+ L4 u7 r; W
-
) A3 H" e& r5 |6 |+ o% C w - function close(event){$ L" X% y0 [# Z; G4 y9 ~: J
- webSocket.close();7 I4 P7 }3 Y) {% m
- }
/ h3 p. g5 @! O - </script>
0 n1 g) z7 g; b3 O6 t7 B2 A - </body>
/ o: \: f3 @& D2 p) r: ]+ Y - </html>
复制代码
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