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10 Март, 2010, 12:04:07 , спустя 6 минут 39 секунд
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/**
* JsHttpRequest: JavaScript "AJAX" data loader
* Minimized version: see debug directory for the complete one.
*
* @license LGPL
* @author Dmitry Koterov, http://en.dklab.ru/lib/JsHttpRequest/
* @version 5.x $Id$
*/
function JsHttpRequest (){
var t= this;
t. onreadystatechange= null;
t. readyState= 0;
t. responseText= null;
t. responseXML= null;
t. status= 200;
t. statusText= "OK";
t. responseJS= null;
t. caching= false;
t. loader= null;
t. session_name= "PHPSESSID";
t._ldObj= null;
t._reqHeaders= [];
t._openArgs= null;
t._errors= {inv_form_el: "Invalid FORM element detected: name=%, tag=%",must_be_single_el: "If used, <form> must be a single HTML element in the list.",js_invalid: "JavaScript code generated by backend is invalid!\n%",url_too_long: "Cannot use so long query with GET request (URL is larger than % bytes)",unk_loader: "Unknown loader: %",no_loaders: "No loaders registered at all, please check JsHttpRequest.LOADERS array",no_loader_matched: "Cannot find a loader which may process the request. Notices are:\n%"};
t. abort=function (){
with (this){
if(_ldObj&&_ldObj. abort){
_ldObj. abort();
}
_cleanup ();
if(readyState== 0){
return;
}
if(readyState== 1&&!_ldObj ){
readyState= 0;
return;
}
_changeReadyState (4, true);
}
};
t. open=function (_2,_3,_4,_5,_6 ){
with (this){
if(_3. match(/^ ((\w+ )\. )? (GET|POST )\s+ (. *)/i )){
this. loader=RegExp.$ 2?RegExp.$ 2: null;
_2=RegExp.$ 3;
_3=RegExp.$ 4;
}
try{
if(document. location. search. match(new RegExp ("[&?]"+session_name+ "=([^&?]*)"))||document. cookie. match(new RegExp ("(?:;|^)\\s*"+session_name+ "=([^;]*)"))){
_3+= (_3. indexOf("?")>= 0? "&": "?")+session_name+ "="+ this. escape(RegExp.$ 1);
}
}
catch(e ){
}
_openArgs= {method: (_2|| ""). toUpperCase(),url:_3,asyncFlag:_4,username:_5!= null?_5: "",password:_6!= null?_6: ""};
_ldObj= null;
_changeReadyState (1, true);
return true;
}
};
t. send=function (_7 ){
if(! this. readyState){
return;
}
this._changeReadyState (1, true);
this._ldObj= null;
var _8= [];
var _9= [];
if(! this._hash2query (_7, null,_8,_9 )){
return;
}
var _a= null;
if(this. caching&&!_9. length){
_a= this._openArgs. username+ ":"+ this._openArgs. password+ "@"+ this._openArgs. url+ "|"+_8+ "#"+ this._openArgs. method;
var _b=JsHttpRequest. CACHE[_a ];
if(_b ){
this._dataReady (_b [0],_b [1]);
return false;
}
}
var _c= (this. loader|| ""). toLowerCase();
if(_c&&!JsHttpRequest. LOADERS[_c ]){
return this._error ("unk_loader",_c );
}
var _d= [];
var _e=JsHttpRequest. LOADERS;
for(var _f in _e ){
var ldr=_e [_f ]. loader;
if(!ldr ){
continue;
}
if(_c&&_f!=_c ){
continue;
}
var _11= new ldr (this);
JsHttpRequest. extend(_11, this._openArgs );
JsHttpRequest. extend(_11, {queryText:_8. join("&"),queryElem:_9,id: (new Date(). getTime())+ ""+JsHttpRequest. COUNT++,hash:_a,span: null});
var _12=_11. load();
if(!_12 ){
this._ldObj=_11;
JsHttpRequest. PENDING[_11. id]= this;
return true;
}
if(!_c ){
_d [_d. length]= "- "+_f. toUpperCase()+ ": "+ this._l (_12 );
}else{
return this._error (_12 );
}
}
return _f? this._error ("no_loader_matched",_d. join("\n")): this._error ("no_loaders");
};
t. getAllResponseHeaders=function (){
with (this){
return _ldObj&&_ldObj. getAllResponseHeaders?_ldObj. getAllResponseHeaders(): [];
}
};
t. getResponseHeader=function (_13 ){
with (this){
return _ldObj&&_ldObj. getResponseHeader?_ldObj. getResponseHeader(_13 ): null;
}
};
t. setRequestHeader=function (_14,_15 ){
with (this){
_reqHeaders [_reqHeaders. length]= [_14,_15 ];
}
};
t._dataReady=function (_16,js ){
with (this){
if(caching&&_ldObj ){
JsHttpRequest. CACHE[_ldObj. hash]= [_16,js ];
}
responseText=responseXML=_16;
responseJS=js;
if(js!== null){
status= 200;
statusText= "OK";
}else{
status= 500;
statusText= "Internal Server Error";
}
_changeReadyState (2);
_changeReadyState (3);
_changeReadyState (4);
_cleanup ();
}
};
t._l=function (_18 ){
var i= 0,p= 0,msg= this._errors [_18 [0]];
while((p=msg. indexOf("%",p ))>= 0){
var a=_18 [++i ]+ "";
msg=msg. substring(0,p )+a+msg. substring(p +1,msg. length);
p+= 1+a. length;
}
return msg;
};
t._error=function (msg ){
msg= this._l (typeof (msg )== "string"?arguments:msg );
msg= "JsHttpRequest: "+msg;
if(!window. Error){
throw msg;
}else{
if((new Error(1, "test")). description== "test"){
throw new Error(1,msg );
}else{
throw new Error(msg );
}
}
};
t._hash2query=function (_1e,_1f,_20,_21 ){
if(_1f== null){
_1f= "";
}
if((""+typeof (_1e )). toLowerCase()== "object"){
var _22= false;
if(_1e&&_1e. parentNode&&_1e. parentNode. appendChild&&_1e. tagName&&_1e. tagName. toUpperCase()== "FORM"){
_1e= {form:_1e };
}
for(var k in _1e ){
var v=_1e [k ];
if(v instanceof Function ){
continue;
}
var _25=_1f?_1f+ "["+ this. escape(k )+ "]": this. escape(k );
var _26=v&&v. parentNode&&v. parentNode. appendChild&&v. tagName;
if(_26 ){
var tn=v. tagName. toUpperCase();
if(tn== "FORM"){
_22= true;
}else{
if(tn== "INPUT"||tn== "TEXTAREA"||tn== "SELECT"){
}else{
return this._error ("inv_form_el", (v. name|| ""),v. tagName);
}
}
_21 [_21. length]= {name:_25,e:v };
}else{
if(v instanceof Object){
this._hash2query (v,_25,_20,_21 );
}else{
if(v=== null){
continue;
}
if(v=== true){
v= 1;
}
if(v=== false){
v= "";
}
_20 [_20. length]=_25+ "="+ this. escape(""+v );
}
}
if(_22&&_21. length> 1){
return this._error ("must_be_single_el");
}
}
}else{
_20 [_20. length]=_1e;
}
return true;
};
t._cleanup=function (){
var _28= this._ldObj;
if(!_28 ){
return;
}
JsHttpRequest. PENDING[_28. id]= false;
var _29=_28. span;
if(!_29 ){
return;
}
_28. span= null;
var _2a=function (){
_29. parentNode. removeChild(_29 );
};
JsHttpRequest. setTimeout(_2a, 50);
};
t._changeReadyState=function (s,_2c ){
with (this){
if(_2c ){
status=statusText=responseJS= null;
responseText= "";
}
readyState=s;
if(onreadystatechange ){
onreadystatechange ();
}
}
};
t. escape=function (s ){
return escape (s ). replace(new RegExp ("\\+", "g"), "%2B");
};
}
JsHttpRequest. COUNT= 0;
JsHttpRequest. MAX_URL_LEN= 2000;
JsHttpRequest. CACHE= {};
JsHttpRequest. PENDING= {};
JsHttpRequest. LOADERS= {};
JsHttpRequest._dummy=function (){
};
JsHttpRequest. TIMEOUTS= {s:window. setTimeout,c:window. clearTimeout};
JsHttpRequest. setTimeout=function (_2e,dt ){
window. JsHttpRequest_tmp=JsHttpRequest. TIMEOUTS. s;
if(typeof (_2e )== "string"){
id=window. JsHttpRequest_tmp(_2e,dt );
}else{
var id= null;
var _31=function (){
_2e ();
delete JsHttpRequest. TIMEOUTS[id ];
};
id=window. JsHttpRequest_tmp(_31,dt );
JsHttpRequest. TIMEOUTS[id ]=_31;
}
window. JsHttpRequest_tmp= null;
return id;
};
JsHttpRequest. clearTimeout=function (id ){
window. JsHttpRequest_tmp=JsHttpRequest. TIMEOUTS. c;
delete JsHttpRequest. TIMEOUTS[id ];
var r=window. JsHttpRequest_tmp(id );
window. JsHttpRequest_tmp= null;
return r;
};
JsHttpRequest. query=function (url,_35,_36,_37 ){
var req= new this();
req. caching=!_37;
req. onreadystatechange=function (){
if(req. readyState== 4){
_36 (req. responseJS,req. responseText);
}
};
req. open(null,url, true);
req. send(_35 );
};
JsHttpRequest. dataReady=function (d ){
var th= this. PENDING[d. id];
delete this. PENDING[d. id];
if(th ){
th._dataReady (d. text,d. js);
}else{
if(th!== false){
throw "dataReady(): unknown pending id: "+d. id;
}
}
};
JsHttpRequest. extend=function (_3b,src ){
for(var k in src ){
_3b [k ]=src [k ];
}
};
JsHttpRequest. LOADERS. xml= {loader:function (req ){
JsHttpRequest. extend(req._errors, {xml_no: "Cannot use XMLHttpRequest or ActiveX loader: not supported",xml_no_diffdom: "Cannot use XMLHttpRequest to load data from different domain %",xml_no_headers: "Cannot use XMLHttpRequest loader or ActiveX loader, POST method: headers setting is not supported, needed to work with encodings correctly",xml_no_form_upl: "Cannot use XMLHttpRequest loader: direct form elements using and uploading are not implemented"});
this. load=function (){
if(this. queryElem. length){
return ["xml_no_form_upl"];
}
if(this. url. match(new RegExp ("^([a-z]+://[^\\/]+)(.*)", "i"))){
if(RegExp.$ 1. toLowerCase()!=document. location. protocol+ "//"+document. location. hostname. toLowerCase()){
return ["xml_no_diffdom",RegExp.$ 1];
}
}
var xr= null;
if(window. XMLHttpRequest){
try{
xr= new XMLHttpRequest ();
}
catch(e ){
}
}else{
if(window. ActiveXObject){
try{
xr= new ActiveXObject ("Microsoft.XMLHTTP");
}
catch(e ){
}
if(!xr ){
try{
xr= new ActiveXObject ("Msxml2.XMLHTTP");
}
catch(e ){
}
}
}
}
if(!xr ){
return ["xml_no"];
}
var _40=window. ActiveXObject||xr. setRequestHeader;
if(! this. method){
this. method=_40&&this. queryText. length? "POST": "GET";
}
if(this. method== "GET"){
if(this. queryText){
this. url+= (this. url. indexOf("?")>= 0? "&": "?")+ this. queryText;
}
this. queryText= "";
if(this. url. length>JsHttpRequest. MAX_URL_LEN){
return ["url_too_long",JsHttpRequest. MAX_URL_LEN];
}
}else{
if(this. method== "POST"&&!_40 ){
return ["xml_no_headers"];
}
}
this. url+= (this. url. indexOf("?")>= 0? "&": "?")+ "JsHttpRequest="+ (req. caching? "0": this. id)+ "-xml";
var id= this. id;
xr. onreadystatechange=function (){
if(xr. readyState!= 4){
return;
}
xr. onreadystatechange=JsHttpRequest._dummy;
req. status= null;
try{
req. status=xr. status;
req. responseText=xr. responseText;
}
catch(e ){
}
if(!req. status){
return;
}
try{
var _42=req. responseText|| "{ js: null, text: null }";
eval ("JsHttpRequest._tmp = function(id) { var d = "+_42+ "; d.id = id; JsHttpRequest.dataReady(d); }");
}
catch(e ){
return req._error ("js_invalid",req. responseText);
}
JsHttpRequest._tmp (id );
JsHttpRequest._tmp= null;
};
xr. open(this. method, this. url, true, this. username, this. password);
if(_40 ){
for(var i= 0;i<req._reqHeaders. length;i++ ){
xr. setRequestHeader(req._reqHeaders [i ][0],req._reqHeaders [i ][1]);
}
xr. setRequestHeader("Content-Type", "application/octet-stream");
}
xr. send(this. queryText);
this. span= null;
this. xr=xr;
return null;
};
this. getAllResponseHeaders=function (){
return this. xr. getAllResponseHeaders();
};
this. getResponseHeader=function (_44 ){
return this. xr. getResponseHeader(_44 );
};
this. abort=function (){
this. xr. abort();
this. xr= null;
};
}};
JsHttpRequest. LOADERS. script= {loader:function (req ){
JsHttpRequest. extend(req._errors, {script_only_get: "Cannot use SCRIPT loader: it supports only GET method",script_no_form: "Cannot use SCRIPT loader: direct form elements using and uploading are not implemented"});
this. load=function (){
if(this. queryText){
this. url+= (this. url. indexOf("?")>= 0? "&": "?")+ this. queryText;
}
this. url+= (this. url. indexOf("?")>= 0? "&": "?")+ "JsHttpRequest="+ this. id+ "-"+ "script";
this. queryText= "";
if(! this. method){
this. method= "GET";
}
if(this. method!== "GET"){
return ["script_only_get"];
}
if(this. queryElem. length){
return ["script_no_form"];
}
if(this. url. length>JsHttpRequest. MAX_URL_LEN){
return ["url_too_long",JsHttpRequest. MAX_URL_LEN];
}
var th= this,d=document,s= null,b=d. body;
if(!window. opera){
this. span=s=d. createElement("SCRIPT");
var _4a=function (){
s. language= "JavaScript";
if(s. setAttribute){
s. setAttribute("src",th. url);
}else{
s. src=th. url;
}
b. insertBefore(s,b. lastChild);
};
}else{
this. span=s=d. createElement("SPAN");
s. style. display= "none";
b. insertBefore(s,b. lastChild);
s. innerHTML= "Workaround for IE.<s"+ "cript></"+ "script>";
var _4a=function (){
s=s. getElementsByTagName("SCRIPT")[0];
s. language= "JavaScript";
if(s. setAttribute){
s. setAttribute("src",th. url);
}else{
s. src=th. url;
}
};
}
JsHttpRequest. setTimeout(_4a, 10);
return null;
};
}};
JsHttpRequest. LOADERS. form= {loader:function (req ){
JsHttpRequest. extend(req._errors, {form_el_not_belong: "Element \"%\" does not belong to any form!",form_el_belong_diff: "Element \"%\" belongs to a different form. All elements must belong to the same form!",form_el_inv_enctype: "Attribute \"enctype\" of the form must be \"%\" (for IE), \"%\" given."});
this. load=function (){
var th= this;
if(!th. method){
th. method= "POST";
}
th. url+= (th. url. indexOf("?")>= 0? "&": "?")+ "JsHttpRequest="+th. id+ "-"+ "form";
if(th. method== "GET"){
if(th. queryText){
th. url+= (th. url. indexOf("?")>= 0? "&": "?")+th. queryText;
}
if(th. url. length>JsHttpRequest. MAX_URL_LEN){
return ["url_too_long",JsHttpRequest. MAX_URL_LEN];
}
var p=th. url. split("?", 2);
th. url=p [0];
th. queryText=p [1]|| "";
}
var _4e= null;
var _4f= false;
if(th. queryElem. length){
if(th. queryElem[0]. e. tagName. toUpperCase()== "FORM"){
_4e=th. queryElem[0]. e;
_4f= true;
th. queryElem= [];
}else{
_4e=th. queryElem[0]. e. form;
for(var i= 0;i<th. queryElem. length;i++ ){
var e=th. queryElem[i ]. e;
if(!e. form){
return ["form_el_not_belong",e. name];
}
if(e. form!=_4e ){
return ["form_el_belong_diff",e. name];
}
}
}
if(th. method== "POST"){
var _52= "multipart/form-data";
var _53= (_4e. attributes. encType&&_4e. attributes. encType. nodeValue)|| (_4e. attributes. enctype&&_4e. attributes. enctype. value)||_4e. enctype;
if(_53!=_52 ){
return ["form_el_inv_enctype",_52,_53 ];
}
}
}
var d=_4e&& (_4e. ownerDocument||_4e. document)||document;
var _55= "jshr_i_"+th. id;
var s=th. span=d. createElement("DIV");
s. style. position= "absolute";
s. style. display= "none";
s. style. visibility= "hidden";
s. innerHTML= (_4e? "": "<form"+ (th. method== "POST"? " enctype=\"multipart/form-data\" method=\"post\"": "")+ "></form>")+ "<iframe name=\""+_55+ "\" id=\""+_55+ "\" style=\"width:0px; height:0px; overflow:hidden; border:none\"></iframe>";
if(!_4e ){
_4e=th. span. firstChild;
}
d. body. insertBefore(s,d. body. lastChild);
var _57=function (e,_59 ){
var sv= [];
var _5b=e;
if(e. mergeAttributes){
var _5b=d. createElement("form");
_5b. mergeAttributes(e, false);
}
for(var i= 0;i<_59. length;i++ ){
var k=_59 [i ][0],v=_59 [i ][1];
sv [sv. length]= [k,_5b. getAttribute(k )];
_5b. setAttribute(k,v );
}
if(e. mergeAttributes){
e. mergeAttributes(_5b, false);
}
return sv;
};
var _5f=function (){
top. JsHttpRequestGlobal=JsHttpRequest;
var _60= [];
if(!_4f ){
for(var i= 0,n=_4e. elements. length;i<n;i++ ){
_60 [i ]=_4e. elements[i ]. name;
_4e. elements[i ]. name= "";
}
}
var qt=th. queryText. split("&");
for(var i=qt. length-1;i>= 0;i-- ){
var _64=qt [i ]. split("=", 2);
var e=d. createElement("INPUT");
e. type= "hidden";
e. name=unescape (_64 [0]);
e. value=_64 [1]!= null?unescape (_64 [1]): "";
_4e. appendChild(e );
}
for(var i= 0;i<th. queryElem. length;i++ ){
th. queryElem[i ]. e. name=th. queryElem[i ]. name;
}
var sv=_57 (_4e, [["action",th. url], ["method",th. method], ["onsubmit", null], ["target",_55 ]]);
_4e. submit();
_57 (_4e,sv );
for(var i= 0;i<qt. length;i++ ){
_4e. lastChild. parentNode. removeChild(_4e. lastChild);
}
if(!_4f ){
for(var i= 0,n=_4e. elements. length;i<n;i++ ){
_4e. elements[i ]. name=_60 [i ];
}
}
};
JsHttpRequest. setTimeout(_5f, 100);
return null;
};
}};
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