0.6.x/js/06_net/05_XXHRGadget.js

   1 //{+xhrgadget"OpenSocialガジェット通信プロキシ"(Xドメインは元よりXプロトコルな擬似xhr通信を可能にする)[+xhr]\r
   2 \r
   3 /*\r
   4  * gadgets.io.makeRequest\r
   5  * \r
   6  * 1. gadget-iframe を作る。指示を # で渡す。 元文書は frame 内の images の監視を開始する。\r
   7  *  1. 通信用 img の src\r
   8  *\r
   9  * 2. gadget-iframe が 通信用 img を作る。#ready\r
  10  * \r
  11  * 3. 元文書が #ready を受け取ったら、iframe の # を書き換えて指示を送る。指示が長い場合、分割して送る。\r
  12  * \r
  13  * 4. gadget-iframe は 通信用 img の # に結果を書く。コンテンツが長い場合、分割する。\r
  14  * \r
  15  * 5. 元文書は結果を受け取ったことを gadget-iframe の # に書いて伝える。\r
  16  * \r
  17  * \r
  18  */\r
  19 \r
  20 var X_NET_GIMR_canUse         = 5.5 <= X_UA[ 'IE' ] || !X_UA[ 'IE' ],\r
  21         \r
  22         X_NET_GIMR_iframeName     = 'gadgetProxy_' + ( Math.random() * 100000 | 0 ),\r
  23         \r
  24         X_NET_GIMR_GADGET_XML_URL = 'http://googledrive.com/host/0B4Y86MXyTfuoVUkwTE54T3V1V1U',\r
  25         \r
  26         // https://kldleov8fp2dl82hphfmor8riij82tof-a-sites-opensocial.googleusercontent.com/gadgets/ifr\r
  27         X_NET_GIMR_GADGET_URL     = 'http://www.ig.gmodules.com/gadgets/ifr?url=' + encodeURIComponent( X_NET_GIMR_GADGET_XML_URL ) + '&nocache=1',\r
  28         \r
  29         X_NET_GIMR_IMAGE_URL      = 'img/opacity0.gif',\r
  30         \r
  31         X_NET_GIMR_detection      = new Function( 'f,j,i', 'for(j=f.length;j;)try{i=f[--j];return i.location.hash}catch(e){}' ),\r
  32         \r
  33         X_NET_GIMR_gadgetIframe,\r
  34         \r
  35         X_NET_GIMR_requestOptions,\r
  36         \r
  37         X_NET_GIMR_requestOriginal,\r
  38         \r
  39         X_NET_GIMR_timerID,\r
  40         \r
  41         X_NET_GIMR_phase = 0,\r
  42         \r
  43         X_NET_GIMR_lastHashString,\r
  44         \r
  45         X_NET_GIMR_isReceiveBatches, X_NET_GIMR_receivedString = '';\r
  46 \r
  47 \r
  48 function X_NET_GIMR_detectImageOverIframe(){\r
  49         var raw = X_NET_GIMR_gadgetIframe[ '_rawObject' ],\r
  50                 iwin, ret, n, error, data = null, zero, e;\r
  51         \r
  52         if( raw ){\r
  53                 iwin = raw.contentWindow || ( raw.contentDocument && raw.contentDocument.parentWindow ) || window.frames[ X_NET_GIMR_iframeName ];\r
  54                 \r
  55                 if( iwin && iwin.frames && iwin.frames.length ){\r
  56                         ret = X_NET_GIMR_detection( iwin.frames );\r
  57                         if( ret && ret !== X_NET_GIMR_lastHashString ){\r
  58                                 X_NET_GIMR_lastHashString = ret;\r
  59                                 //console.log( ret.length );\r
  60                                 //console.log( '' + ret );\r
  61                                 \r
  62                                 switch( X_NET_GIMR_phase ){\r
  63                                         case 0 : // init\r
  64                                                 // TODO 分割\r
  65                                                 iwin.location.href = X_NET_GIMR_GADGET_URL + '#' + encodeURIComponent( X_JSON_stringify( X_NET_GIMR_requestOptions ) );\r
  66                                                 break;\r
  67                                                 \r
  68                                         case 1 : // after makeRequest > :ok 待ち\r
  69                                                 iwin.location.href = X_NET_GIMR_GADGET_URL + '#_waiting_';\r
  70                                                 break;\r
  71 \r
  72                                         case 2 : // _waiting_ 通信結果待ち\r
  73                                                 // 分割受信モードか?\r
  74                                                 ret = ret.substr( 1 );\r
  75                                                 n   = parseInt( ret );\r
  76                                                 \r
  77                                                 if( X_NET_GIMR_isReceiveBatches ){\r
  78                                                         X_NET_GIMR_receivedString += X_Net_GIMR_decodeLocationHash( ret );                                              \r
  79                                                         if( --X_NET_GIMR_isReceiveBatches ){\r
  80                                                                 iwin.location.href = X_NET_GIMR_GADGET_URL + '#_recived_' + X_NET_GIMR_isReceiveBatches;\r
  81                                                                 return;\r
  82                                                         };\r
  83                                                 } else\r
  84                                                 if( 1 < n ){\r
  85                                                         ret = ret.substr( ( n + ':' ).length );\r
  86                                                         X_NET_GIMR_receivedString   = X_Net_GIMR_decodeLocationHash( ret );\r
  87                                                         X_NET_GIMR_isReceiveBatches = --n;\r
  88                                                         iwin.location.href = X_NET_GIMR_GADGET_URL + '#_recived_' + X_NET_GIMR_isReceiveBatches;\r
  89                                                         // speedup\r
  90                                                         X_NET_GIMR_timerID = X_Timer_add( 16, 0, X_NET_GIMR_detectImageOverIframe );\r
  91                                                         return X_Callback_UN_LISTEN;\r
  92                                                 } else {\r
  93                                                         X_NET_GIMR_receivedString = X_Net_GIMR_decodeLocationHash( ret );\r
  94                                                 };\r
  95 \r
  96                                                 ret = X_String_parseTrustedJsonString( X_NET_GIMR_receivedString );\r
  97                                                 \r
  98                                                 \r
  99                                                 X_NET_GIMR_receivedString = '';\r
 100                                                 \r
 101                                                 error = ret[ 'errors' ] && ret[ 'errors' ].length;\r
 102                                                 \r
 103                                                 switch( !error && X_NET_GIMR_requestOriginal[ 'dataType' ] ){\r
 104                                                         case 'json' :\r
 105                                                                 data = X_String_parseTrustedJsonString( ret[ 'json' ] || ret[ 'text' ] || '' );\r
 106                                                                 break;\r
 107                                                 };\r
 108                                                 \r
 109                                                 //console.dir( data || ret );\r
 110                                                 \r
 111                                                 X_NET_GIMRWrapper._busy = false;\r
 112                                                 \r
 113                                                 if( error || ret[ 'rc' ] < 200 || 400 < ret[ 'rc' ] ){\r
 114                                                         e = {\r
 115                                                                 type      : X_EVENT_ERROR,\r
 116                                                                 status    : ret[ 'rc' ] || ret[ 'code' ] || 400,\r
 117                                                                 'message' : error && ret[ 'errors' ].join( '\n' )\r
 118                                                         };\r
 119                                                 } else {\r
 120                                                         e = {\r
 121                                                                 type      : X_EVENT_SUCCESS,\r
 122                                                                 status    : ret[ 'rc' ] || 200,\r
 123                                                                 response  : data\r
 124                                                         };\r
 125                                                 };\r
 126                                                 \r
 127                                                 e[ 'headers' ] = ret[ 'headers' ];\r
 128                                                 \r
 129                                                 X_NET_GIMRWrapper[ 'asyncDispatch' ]( e);\r
 130                                                 \r
 131                                                 //console.dir( e );\r
 132 \r
 133                                                 X_NET_GIMR_timerID = X_NET_GIMR_phase = 0;\r
 134                                                 X_NET_GIMR_lastHashString = '';                                                 \r
 135                                                 iwin.location.href = X_NET_GIMR_GADGET_URL + '#_recived_';\r
 136                                                 \r
 137                                                 return X_Callback_UN_LISTEN;\r
 138                                 };\r
 139                                 ++X_NET_GIMR_phase;\r
 140                         };\r
 141                 };\r
 142         };\r
 143 };\r
 144 \r
 145 // http://outcloud.blogspot.jp/2015/06/gecko-location-hash.html\r
 146 function X_Net_GIMR_decodeLocationHash( str ){\r
 147         return X_UA[ 'Gecko' ] ? unescape( str ) : decodeURIComponent( str );\r
 148 };\r
 149 \r
 150 X_TEMP.X_Net_GIMR_init = function(){\r
 151         // TODO extend NinjaIframe\r
 152         X_NET_GIMRWrapper = X_Class_override(\r
 153                         X_EventDispatcher(),\r
 154                         X_TEMP.X_Net_GIMR_props\r
 155                 );\r
 156         \r
 157         delete X_TEMP.X_Net_GIMR_init;\r
 158         delete X_TEMP.X_Net_GIMR_props; \r
 159         \r
 160         return X_NET_GIMRWrapper;\r
 161 };\r
 162 \r
 163 X_TEMP.X_Net_GIMR_props = {\r
 164 \r
 165                 _busy         : false,\r
 166                 _canceled     : false,\r
 167                 _onloadCount  : 0,\r
 168                 \r
 169                 load : function( obj ){\r
 170                         var k, v;\r
 171                         //createURL\r
 172                         if( !X_NET_GIMR_gadgetIframe ){\r
 173                                 X_NET_GIMR_gadgetIframe = X_Node_systemNode\r
 174                                                 .create( 'iframe', {\r
 175                                                         className         : 'hidden-iframe',\r
 176                                                         name              : X_NET_GIMR_iframeName,\r
 177                                                         id                : X_NET_GIMR_iframeName,\r
 178                                                         src               : X_NET_GIMR_GADGET_URL + '#' + encodeURIComponent(\r
 179                                                                 X_JSON_stringify( { 'img' : X_URL_toAbsolutePath( X_NET_GIMR_IMAGE_URL ), 'len' : 1000, 'itvl' : 200 } ) ),\r
 180                                                         scrolling         : 'no',\r
 181                                                         allowtransparency : 'no',                                       \r
 182                                                         frameborder       : 0,\r
 183                                                         tabindex          : -1\r
 184                                                         } );\r
 185                         };\r
 186                         \r
 187                         X_NET_GIMR_timerID = X_Timer_add( 333, 0, X_NET_GIMR_detectImageOverIframe );\r
 188                         \r
 189                         X_NET_GIMR_requestOriginal = X_Object_deepCopy( obj );\r
 190         \r
 191                         //console.dir( obj );\r
 192                         \r
 193                         X_NET_GIMR_requestOptions = {\r
 194                                 'CONTENT_TYPE'     : 'TEXT',\r
 195                                 'GET_FULL_HEADERS' : true,\r
 196                                 'REFRESH_INTERVAL' : 0,\r
 197                                 'url'              : obj[ 'url' ]\r
 198                         };\r
 199                         \r
 200                         for( k in obj ){\r
 201                                 if( v = '' + obj[ k ] ){\r
 202                                         switch( k ){\r
 203                                                 case 'postdata' :\r
 204                                                         X_NET_GIMR_requestOptions[ 'POST_DATA' ] = v;\r
 205                                                         break;\r
 206                                                 case 'method' :\r
 207                                                         X_NET_GIMR_requestOptions[ 'METHOD' ] = v;\r
 208                                                         break;                                  \r
 209                                                 case 'dataType' :\r
 210                                                         // TEXT 以外は無視される?\r
 211                                                         switch( v = v.toUpperCase() ){\r
 212                                                                 case 'TEXT' :\r
 213                                                                 case 'JSON' :\r
 214                                                                         X_NET_GIMR_requestOptions[ 'CONTENT_TYPE' ] = v;\r
 215                                                                         break;\r
 216                                                                 case 'DOM'  :\r
 217                                                                 case 'HTML' :\r
 218                                                                 case 'HTM'  :\r
 219                                                                 case 'XML'  :\r
 220                                                                         X_NET_GIMR_requestOptions[ 'CONTENT_TYPE' ] = 'DOM';\r
 221                                                                         break;\r
 222                                                                 //case 'FEED' :\r
 223                                                         };              \r
 224                                                         break;\r
 225                                                 case 'headers' :\r
 226                                                         X_NET_GIMR_requestOptions[ 'HEADERS' ] = X_NET_GIMR_requestOriginal[ k ];\r
 227                                                         break;\r
 228                                                 case 'cashe' :\r
 229                                                         X_NET_GIMR_requestOptions[ 'REFRESH_INTERVAL' ] = 3600;\r
 230                                                         break;\r
 231                                         };                                      \r
 232                                 };\r
 233                         };\r
 234                         \r
 235                         this._busy = true;\r
 236                 },\r
 237                 \r
 238                 cancel : function(){\r
 239                         this._canceled = true;\r
 240                 },\r
 241                 \r
 242                 reset : function(){\r
 243                         this._busy = this._canceled = false;\r
 244                         this._onloadCount = 0;\r
 245                 }\r
 246         };\r
 247 \r
 248 //}+xhrgadget