[151] | 1 | function Connector() |
---|
| 2 | { |
---|
| 3 | } |
---|
| 4 | |
---|
| 5 | Connector.prototype = { |
---|
| 6 | 'go' : function() |
---|
| 7 | { |
---|
| 8 | // connection |
---|
| 9 | var __HTTP__ = null; |
---|
| 10 | var __THREADS__ = []; |
---|
| 11 | var index = 0; |
---|
| 12 | var rtlen = 0; |
---|
| 13 | var ie = false; // ie don't has stream |
---|
| 14 | function makeConnection() |
---|
| 15 | { |
---|
| 16 | if ( __HTTP__ == null ) |
---|
| 17 | __HTTP__ = xhr(); |
---|
| 18 | } |
---|
| 19 | function setPost(pThread) |
---|
| 20 | { |
---|
| 21 | __THREADS__[pThread].__METHOD__ = 'POST'; |
---|
| 22 | return true; |
---|
| 23 | } |
---|
| 24 | // this set __THREADS__[?].__TYPE__ to 4 for request or 3 for stream |
---|
| 25 | function setStream(pThread) |
---|
| 26 | { |
---|
| 27 | __THREADS__[pThread].__TYPE__ = ( !ie ) ? 3 : 4; |
---|
| 28 | return true; |
---|
| 29 | } |
---|
| 30 | function trim(pData) |
---|
| 31 | { |
---|
| 32 | return pData.replace(/^ +| +$/g, ''); |
---|
| 33 | } |
---|
| 34 | function verifyUserHandler(pThread, pHandler) |
---|
| 35 | { |
---|
| 36 | var type_of_handler = typeof pHandler; |
---|
| 37 | var i; |
---|
| 38 | switch ( type_of_handler ) |
---|
| 39 | { |
---|
| 40 | case 'function' : |
---|
| 41 | return true; |
---|
| 42 | break; |
---|
| 43 | case 'object' : |
---|
| 44 | for ( i in pHandler ) |
---|
| 45 | if ( i != 'stream' && i != 'request' ) |
---|
| 46 | return false; |
---|
| 47 | else if ( i == 'stream' ) |
---|
| 48 | setStream(pThread) |
---|
| 49 | return true; |
---|
| 50 | break; |
---|
| 51 | default : |
---|
| 52 | return false; |
---|
| 53 | } |
---|
| 54 | } |
---|
| 55 | // xhr = XMLHttpRequest |
---|
| 56 | function xhr() |
---|
| 57 | { |
---|
| 58 | try |
---|
| 59 | { |
---|
| 60 | return new XMLHttpRequest(); |
---|
| 61 | } |
---|
| 62 | catch (e) |
---|
| 63 | { |
---|
| 64 | ie = true; |
---|
| 65 | try |
---|
| 66 | { |
---|
| 67 | return new ActiveXObject('Msxml2.XMLHTTP'); |
---|
| 68 | } |
---|
| 69 | catch (e1) |
---|
| 70 | { |
---|
| 71 | try |
---|
| 72 | { |
---|
| 73 | return new ActiveXObject('Microsoft.XMLHTTP'); |
---|
| 74 | } |
---|
| 75 | catch (e2) |
---|
| 76 | { |
---|
| 77 | return null; |
---|
| 78 | } |
---|
| 79 | } |
---|
| 80 | } |
---|
| 81 | } |
---|
| 82 | |
---|
| 83 | var __HANDLER__ = function() |
---|
| 84 | { |
---|
| 85 | try |
---|
| 86 | { |
---|
| 87 | if ( ie && __HTTP__.readyState != 4 ) |
---|
| 88 | return false; |
---|
| 89 | |
---|
| 90 | var threadId = __HTTP__.getResponseHeader('ThreadId'); |
---|
| 91 | if ( !threadId ) |
---|
| 92 | return false; |
---|
| 93 | |
---|
| 94 | var type = __THREADS__[threadId].__TYPE__; |
---|
| 95 | if ( __HTTP__.readyState == 3 || __HTTP__.readyState == 4 ) |
---|
| 96 | { |
---|
| 97 | if ( !ie && __HTTP__.readyState == 3 && __THREADS__[threadId].__HANDLER__.stream ) |
---|
| 98 | { |
---|
| 99 | var data = trim(__HTTP__.responseText.substr(index)); |
---|
| 100 | rtlen = __HTTP__.responseText.length; |
---|
| 101 | if ( index < rtlen && data.length ) |
---|
| 102 | { |
---|
| 103 | __THREADS__[threadId].__HANDLER__.stream(data); |
---|
| 104 | index = rtlen; |
---|
| 105 | } |
---|
| 106 | } |
---|
| 107 | if ( __THREADS__[threadId].__HANDLER__.request && __HTTP__.readyState == 4 ) |
---|
| 108 | { |
---|
| 109 | switch ( __HTTP__.status ) |
---|
| 110 | { |
---|
| 111 | case 200: |
---|
| 112 | var data = ( __THREADS__[threadId].__MODE__ == 'XML' ) ? |
---|
| 113 | __HTTP__.responseXML : |
---|
| 114 | __HTTP__.responseText; |
---|
| 115 | |
---|
| 116 | if ( ie && __THREADS__[threadId].__HANDLER__.stream ) |
---|
| 117 | __THREADS__[threadId].__HANDLER__.stream(data); |
---|
| 118 | |
---|
| 119 | if ( __THREADS__[threadId].__HANDLER__.request ) |
---|
| 120 | __THREADS__[threadId].__HANDLER__.request(data); |
---|
| 121 | |
---|
| 122 | break; // [case : status 200] |
---|
| 123 | case 404: |
---|
| 124 | alert('Page Not Found!'); |
---|
| 125 | break; // [case : status 404] |
---|
| 126 | default: |
---|
| 127 | } |
---|
| 128 | } |
---|
| 129 | } |
---|
| 130 | if ( __HTTP__.readyState == 4 ) |
---|
| 131 | { |
---|
| 132 | delete __THREADS__[threadId]; |
---|
| 133 | } |
---|
| 134 | } |
---|
| 135 | catch(e) |
---|
| 136 | { |
---|
| 137 | //alert("__HANDLER__\n" + threadId + "\n " + e + "\n ErroR: " + e.description); |
---|
| 138 | //delete __THREADS__[threadId]; |
---|
| 139 | } |
---|
| 140 | }; |
---|
| 141 | |
---|
| 142 | var argc = arguments.length; |
---|
| 143 | if ( argc < 2 || argc > 4 ) |
---|
| 144 | return {'error':'#0 - invalid params'}; |
---|
| 145 | |
---|
| 146 | if ( __THREADS__[arguments[0]] ) |
---|
| 147 | return {'error':'#2 - request is running'}; |
---|
| 148 | |
---|
| 149 | __THREADS__[arguments[0]] = { |
---|
| 150 | '__HANDLER__' : arguments[1], |
---|
| 151 | '__METHOD__' : 'GET', // __METHOD__ = [GET | POST] |
---|
| 152 | '__MODE__' : 'TEXT', // __MODE__ = [XML | TEXT] |
---|
| 153 | '__TYPE__' : 4 // __TYPE__ = [4 for request | 3 for stream] |
---|
| 154 | }; |
---|
| 155 | |
---|
| 156 | makeConnection(); |
---|
| 157 | |
---|
| 158 | if ( !verifyUserHandler(arguments[0], arguments[1]) ) |
---|
| 159 | { |
---|
| 160 | delete __THREADS__[arguments[0]]; |
---|
| 161 | return {'error':'#1 - invalid handler'}; |
---|
| 162 | } |
---|
| 163 | |
---|
| 164 | if ( argc == 3 ) |
---|
| 165 | setPost(arguments[0]); |
---|
| 166 | |
---|
| 167 | if ( __HTTP__ != null ) |
---|
| 168 | { |
---|
| 169 | try |
---|
| 170 | { |
---|
| 171 | var __TARGET__ = path_im + 'controller.php?act=' + arguments[0]; |
---|
| 172 | var __SEND__ = null; |
---|
| 173 | __HTTP__.open(__THREADS__[arguments[0]].__METHOD__, __TARGET__, true); |
---|
| 174 | if ( __THREADS__[arguments[0]].__METHOD__ == 'POST' ) |
---|
| 175 | { |
---|
| 176 | __HTTP__.setRequestHeader('Content-Type','application/x-www-form-urlencoded'); |
---|
| 177 | __HTTP__.setRequestHeader('Cache-Control', 'no-store, no-cache, must-revalidate'); |
---|
| 178 | __HTTP__.setRequestHeader('Cache-Control', 'post-check=0, pre-check=0'); |
---|
| 179 | __HTTP__.setRequestHeader('Pragma', 'no-cache'); |
---|
| 180 | __SEND__ = arguments[2]; |
---|
| 181 | } |
---|
| 182 | //__HTTP__.setRequestHeader('ThreadId', arguments[0]); |
---|
| 183 | //__HTTP__.setRequestHeader('Connection', 'close'); |
---|
| 184 | //__HTTP__.setRequestHeader('Keep-Alive', '0'); |
---|
| 185 | __HTTP__.onreadystatechange = __HANDLER__; |
---|
| 186 | __HTTP__.send(__SEND__); |
---|
| 187 | } |
---|
| 188 | catch(e) |
---|
| 189 | { |
---|
| 190 | alert("go\n" + e.description) |
---|
| 191 | return {'error':'#3 - ' + e.description}; |
---|
| 192 | } |
---|
| 193 | } |
---|
| 194 | } |
---|
| 195 | }; |
---|