dwt
Version:
Dynamic Web TWAIN is a TWAIN/ICA/SANE-based scanning SDK software specifically designed for web applications running on Windows/macOS/Linux. With just a few lines of code, you can develop robust applications to scan documents from TWAIN/ICA/SANE-compatibl
666 lines (554 loc) • 123 kB
JavaScript
/**
* Dynamsoft JavaScript Library
* @product Dynamsoft WebTWAIN
* @website http://www.dynamsoft.com
* @preserve Copyright 2022, Dynamsoft Corporation
* @author Dynamsoft
* @version 17.3 18798
* @fileoverview Dynamsoft JavaScript Library for WebTWAIN
*/
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LIMIT 1",[a],function(a,c){var d=c.rows.length?c.rows.item(0).value:null;d&&(d=e.serializer.deserialize(d)),b(d)},function(a,b){d(b)})})})['catch'](d)});return h(d,b),d}function V(a,b){var c=this,d=new va(function(b,d){c.ready().then(function(){var e=c._dbInfo;e.db.transaction(function(c){T(c,e,"SELECT * FROM "+e.storeName,[],function(c,d){for(var f=d.rows,g=f.length,h=0;h<g;h++){var i=f.item(h),j=i.value;if(j&&(j=e.serializer.deserialize(j)),void 0!==(j=a(j,i.key,h+1)))return void b(j)}b()},function(a,b){d(b)})})})['catch'](d)});return h(d,b),d}function W(a,b,c,d){var e=this;a=j(a);var f=new va(function(f,g){e.ready().then(function(){void 0===b&&(b=null);var h=b,i=e._dbInfo;i.serializer.serialize(b,function(b,j){j?g(j):i.db.transaction(function(c){T(c,i,"INSERT OR REPLACE INTO "+i.storeName+" (key, value) VALUES (?, ?)",[a,b],function(){f(h)},function(a,b){g(b)})},function(b){if(b.code===b.QUOTA_ERR){if(d>0)return void f(W.apply(e,[a,h,c,d-1]));g(b)}})})})['catch'](g)});return h(f,c),f}function X(a,b,c){return W.apply(this,[a,b,c,1])}function Y(a,b){var c=this;a=j(a);var d=new va(function(b,d){c.ready().then(function(){var e=c._dbInfo;e.db.transaction(function(c){T(c,e,"DELETE FROM "+e.storeName+" WHERE key = ?",[a],function(){b()},function(a,b){d(b)})})})['catch'](d)});return h(d,b),d}function Z(a){var b=this,c=new va(function(a,c){b.ready().then(function(){var d=b._dbInfo;d.db.transaction(function(b){T(b,d,"DELETE FROM "+d.storeName,[],function(){a()},function(a,b){c(b)})})})['catch'](c)});return h(c,a),c}function $(a){var b=this,c=new va(function(a,c){b.ready().then(function(){var d=b._dbInfo;d.db.transaction(function(b){T(b,d,"SELECT COUNT(key) as c FROM "+d.storeName,[],function(b,c){var d=c.rows.item(0).c;a(d)},function(a,b){c(b)})})})['catch'](c)});return h(c,a),c}function _(a,b){var c=this,d=new va(function(b,d){c.ready().then(function(){var e=c._dbInfo;e.db.transaction(function(c){T(c,e,"SELECT key FROM "+e.storeName+" WHERE id = ? LIMIT 1",[a+1],function(a,c){var d=c.rows.length?c.rows.item(0).key:null;b(d)},function(a,b){d(b)})})})['catch'](d)});return h(d,b),d}function aa(a){var b=this,c=new va(function(a,c){b.ready().then(function(){var d=b._dbInfo;d.db.transaction(function(b){T(b,d,"SELECT key FROM "+d.storeName,[],function(b,c){for(var d=[],e=0;e<c.rows.length;e++)d.push(c.rows.item(e).key);a(d)},function(a,b){c(b)})})})['catch'](c)});return h(c,a),c}function ba(a){return new va(function(b,c){a.transaction(function(d){d.executeSql("SELECT name FROM sqlite_master WHERE type='table' AND name <> '__WebKitDatabaseInfoTable__'",[],function(c,d){for(var e=[],f=0;f<d.rows.length;f++)e.push(d.rows.item(f).name);b({db:a,storeNames:e})},function(a,b){c(b)})},function(a){c(a)})})}function ca(a,b){b=k.apply(this,arguments);var c=this.config();a="function"!=typeof a&&a||{},a.name||(a.name=a.name||c.name,a.storeName=a.storeName||c.storeName);var d,e=this;return d=a.name?new va(function(b){var d;d=a.name===c.name?e._dbInfo.db:openDatabase(a.name,"","",0),b(a.storeName?{db:d,storeNames:[a.storeName]}:ba(d))}).then(function(a){return new va(function(b,c){a.db.transaction(function(d){function e(a){return new va(function(b,c){d.executeSql("DROP TABLE IF EXISTS "+a,[],function(){b()},function(a,b){c(b)})})}for(var f=[],g=0,h=a.storeNames.length;g<h;g++)f.push(e(a.storeNames[g]));va.all(f).then(function(){b()})['catch'](function(a){c(a)})},function(a){c(a)})})}):va.reject("Invalid arguments"),h(d,b),d}function da(){try{return"undefined"!=typeof localStorage&&"setItem"in localStorage&&!!localStorage.setItem}catch(a){return!1}}function ea(a,b){var c=a.name+"/";return a.storeName!==b.storeName&&(c+=a.storeName+"/"),c}function fa(){var a="_localforage_support_test";try{return localStorage.setItem(a,!0),localStorage.removeItem(a),!1}catch(a){return!0}}function ga(){return!fa()||localStorage.length>0}function ha(a){var b=this,c={};if(a)for(var d in a)c[d]=a[d];return c.keyPrefix=ea(a,b._defaultConfig),ga()?(b._dbInfo=c,c.serializer=Va,va.resolve()):va.reject()}function ia(a){var b=this,c=b.ready().then(function(){for(var a=b._dbInfo.keyPrefix,c=localStorage.length-1;c>=0;c--){var d=localStorage.key(c);0===d.indexOf(a)&&localStorage.removeItem(d)}});return h(c,a),c}function ja(a,b){var c=this;a=j(a);var d=c.ready().then(function(){var b=c._dbInfo,d=localStorage.getItem(b.keyPrefix+a);return d&&(d=b.serializer.deserialize(d)),d});return h(d,b),d}function ka(a,b){var c=this,d=c.ready().then(function(){for(var b=c._dbInfo,d=b.keyPrefix,e=d.length,f=localStorage.length,g=1,h=0;h<f;h++){var i=localStorage.key(h);if(0===i.indexOf(d)){var j=localStorage.getItem(i);if(j&&(j=b.serializer.deserialize(j)),void 0!==(j=a(j,i.substring(e),g++)))return j}}});return h(d,b),d}function la(a,b){var c=this,d=c.ready().then(function(){var b,d=c._dbInfo;try{b=localStorage.key(a)}catch(a){b=null}return b&&(b=b.substring(d.keyPrefix.length)),b});return h(d,b),d}function ma(a){var b=this,c=b.ready().then(function(){for(var a=b._dbInfo,c=localStorage.length,d=[],e=0;e<c;e++){var f=localStorage.key(e);0===f.indexOf(a.keyPrefix)&&d.push(f.substring(a.keyPrefix.length))}return d});return h(c,a),c}function na(a){var b=this,c=b.keys().then(function(a){return a.length});return h(c,a),c}function oa(a,b){var c=this;a=j(a);var d=c.ready().then(function(){var b=c._dbInfo;localStorage.removeItem(b.keyPrefix+a)});return h(d,b),d}function pa(a,b,c){var d=this;a=j(a);var e=d.ready().then(function(){void 0===b&&(b=null);var c=b;return new va(function(e,f){var g=d._dbInfo;g.serializer.serialize(b,function(b,d){if(d)f(d);else try{localStorage.setItem(g.keyPrefix+a,b),e(c)}catch(a){"QuotaExceededError"!==a.name&&"NS_ERROR_DOM_QUOTA_REACHED"!==a.name||f(a),f(a)}})})});return h(e,c),e}function qa(a,b){if(b=k.apply(this,arguments),a="function"!=typeof a&&a||{},!a.name){var c=this.config();a.name=a.name||c.name,a.storeName=a.storeName||c.storeName}var d,e=this;return d=a.name?new va(function(b){b(a.storeName?ea(a,e._defaultConfig):a.name+"/")}).then(function(a){for(var b=localStorage.length-1;b>=0;b--){var c=localStorage.key(b);0===c.indexOf(a)&&localStorage.removeItem(c)}}):va.reject("Invalid arguments"),h(d,b),d}function ra(a,b){a[b]=function(){var c=arguments;return a.ready().then(function(){return a[b].apply(a,c)})}}function sa(){for(var a=1;a<arguments.length;a++){var b=arguments[a];if(b)for(var c in b)b.hasOwnProperty(c)&&($a(b[c])?arguments[0][c]=b[c].slice():arguments[0][c]=b[c])}return arguments[0]}var ta="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(a){return typeof a}:function(a){return a&&"function"==typeof Symbol&&a.constructor===Symbol&&a!==Symbol.prototype?"symbol":typeof a},ua=e();"undefined"==typeof Promise&&a(3);var va=Promise,wa="local-forage-detect-blob-support",xa=void 0,ya={},za=Object.prototype.toString,Aa="readonly",Ba="readwrite",Ca={_driver:"asyncStorage",_initStorage:C,_support:f(),iterate:E,getItem:D,setItem:F,removeItem:G,clear:H,length:I,key:J,keys:K,dropInstance:L},Da="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",Ea="~~local_forage_type~",Fa=/^~~local_forage_type~([^~]+)~/,Ga="__lfsc__:",Ha=Ga.length,Ia="arbf",Ja="blob",Ka="si08",La="ui08",Ma="uic8",Na="si16",Oa="si32",Pa="ur16",Qa="ui32",Ra="fl32",Sa="fl64",Ta=Ha+Ia.length,Ua=Object.prototype.toString,Va={serialize:P,deserialize:Q,stringToBuffer:N,bufferToString:O},Wa={_driver:"webSQLStorage",_initStorage:S,_support:M(),iterate:V,getItem:U,setItem:X,removeItem:Y,clear:Z,length:$,key:_,keys:aa,dropInstance:ca},Xa={_driver:"localStorageWrapper",_initStorage:ha,_support:da(),iterate:ka,getItem:ja,setItem:pa,removeItem:oa,clear:ia,length:na,key:la,keys:ma,dropInstance:qa},Ya=function(a,b){return a===b||"number"==typeof a&&"number"==typeof b&&isNaN(a)&&isNaN(b)},Za=function(a,b){for(var c=a.length,d=0;d<c;){if(Ya(a[d],b))return!0;d++}return!1},$a=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)},_a={},ab={},bb={INDEXEDDB:Ca,WEBSQL:Wa,LOCALSTORAGE:Xa},cb=[bb.INDEXEDDB._driver,bb.WEBSQL._driver,bb.LOCALSTORAGE._driver],db=["dropInstance"],eb=["clear","getItem","iterate","key","keys","length","removeItem","setItem"].concat(db),fb={description:"",driver:cb.slice(),name:"localforage",size:4980736,storeName:"keyvaluepairs",version:1},gb=function(){function a(b){d(this,a);for(var c in bb)if(bb.hasOwnProperty(c)){var e=bb[c],f=e._driver;this[c]=f,_a[f]||this.defineDriver(e)}this._defaultConfig=sa({},fb),this._config=sa({},this._defaultConfig,b),this._driverSet=null,this._initDriver=null,this._ready=!1,this._dbInfo=null,this._wrapLibraryMethodsWithReady(),this.setDriver(this._config.driver)['catch'](function(){})}return a.prototype.config=function(a){if("object"===(void 0===a?"undefined":ta(a))){if(this._ready)return new Error("Can't call config() after localforage has been used.");for(var b in a){if("storeName"===b&&(a[b]=a[b].replace(/\W/g,"_")),"version"===b&&"number"!=typeof a[b])return new Error("Database version must be a number.");this._config[b]=a[b]}return!("driver"in a&&a.driver)||this.setDriver(this._config.driver)}return"string"==typeof a?this._config[a]:this._config},a.prototype.defineDriver=function(q,b,c){var d=new va(function(b,c){try{var d=q._driver,e=new Error("Custom driver not compliant");if(!q._driver)return void c(e);for(var f=eb.concat("_initStorage"),g=0,i=f.length;g<i;g++){var j=f[g];if((!Za(db,j)||q[j])&&"function"!=typeof q[j])return void c(e)}(function(){for(var b=function(z){return function(){var b=new Error("Method "+z+" is not implemented by the current driver"),c=va.reject(b);return h(c,arguments[arguments.length-1]),c}},c=0,d=db.length;c<d;c++){var e=db[c];q[e]||(q[e]=b(e))}})();var k=function(c){_a[d]&&console.info("Redefining LocalForage driver: "+d),_a[d]=q,ab[d]=c,b()};"_support"in q?q._support&&"function"==typeof q._support?q._support().then(k,c):k(!!q._support):k(!0)}catch(z){c(z)}});return i(d,b,c),d},a.prototype.driver=function(){return this._driver||null},a.prototype.getDriver=function(a,b,c){var d=_a[a]?va.resolve(_a[a]):va.reject(new Error("Driver not found."));return i(d,b,c),d},a.prototype.getSerializer=function(a){var b=va.resolve(Va);return i(b,a),b},a.prototype.ready=function(a){var b=this,c=b._driverSet.then(function(){return null===b._ready&&(b._ready=b._initDriver()),b._ready});return i(c,a,a),c},a.prototype.setDriver=function(a,b,c){function d(){g._config.driver=g.driver()}function e(a){return g._extend(a),d(),g._ready=g._initStorage(g._config),g._ready}function f(a){return function(){function b(){for(;c<a.length;){var f=a[c];return c++,g._dbInfo=null,g._ready=null,g.getDriver(f).then(e)['catch'](b)}d();var h=new Error("No available storage method found.");return g._driverSet=va.reject(h),g._driverSet}var c=0;return b()}}var g=this;$a(a)||(a=[a]);var h=this._getSupportedDrivers(a),j=null!==this._driverSet?this._driverSet['catch'](function(){return va.resolve()}):va.resolve();return this._driverSet=j.then(function(){var a=h[0];return g._dbInfo=null,g._ready=null,g.getDriver(a).then(function(a){g._driver=a._driver,d(),g._wrapLibraryMethodsWithReady(),g._initDriver=f(h)})})['catch'](function(){d();var a=new Error("No available storage method found.");return g._driverSet=va.reject(a),g._driverSet}),i(this._driverSet,b,c),this._driverSet},a.prototype.supports=function(a){return!!ab[a]},a.prototype._extend=function(a){sa(this,a)},a.prototype._getSupportedDrivers=function(a){for(var b=[],c=0,d=a.length;c<d;c++){var e=a[c];this.supports(e)&&b.push(e)}return b},a.prototype._wrapLibraryMethodsWithReady=function(){for(var a=0,b=eb.length;a<b;a++)ra(this,eb[a])},a.prototype.createInstance=function(b){return new a(b)},a}(),hb=new gb;b.exports=hb},{3:3}]},{},[4])(4)});
D.Lib.localforage = localforage;})(Dynamsoft);(function (dynam, nil) {
"use strict";
var lib = dynam.Lib,
win = lib.win,
_fetch_ver = 20210225;
if (dynam._fetch_ver) {
if (dynam._fetch_ver >= _fetch_ver) {
return;
}
}
dynam._fetch_ver = _fetch_ver;
if(win.fetch) {
return;
}
var nav = navigator,
navInfo = lib.getNavInfoByUserAgent(nav.userAgent, nav.platform),
bIE6_9 = navInfo.bIE && (parseInt(navInfo.strBrowserVersion) <= 9),
bIE6_10 = navInfo.bIE && (parseInt(navInfo.strBrowserVersion) <= 10),
each = lib.each,
rlocalProtocol = /^(?:about|app|app\-storage|.+\-extension|file|widget)$/,
STATE_READY = 1,
STATE_OK = 2,
STATE_ABORT = 3,
OK_CODE = 200,
NO_CONTENT_CODE = 204,
MULTIPLE_CHOICES = 300,
NOT_MODIFIED = 304,
BAD_REQUEST = 400,
UN_AUTH_REQUEST = 401,
FORBIDDEN_REQUEST = 403,
NOT_FOUND_CODE = 404,
NO_CONTENT_CODE2 = 1223,
SERVER_ERR = 500,
ERR_NAME_NOT_RESOLVED = 12007,
ERR_CANNOT_CONNECT = 12029,
ERR_NO_RESPONSE = 2,
_strOpenErr = 'open error: ',
_strSendErr = 'send error: ',
simulatedLocation = new lib.Uri(location.href),
isLocal = simulatedLocation && rlocalProtocol.test(simulatedLocation.getScheme()),
XDomainRequest_ = false,//bIE6_9 && win.XDomainRequest,
createStandardXHR = function () {
try {
return new win.XMLHttpRequest();
} catch (e) {
}
// return undefined;
},
createActiveXHR = function () {
try {
var http = false;
// code for IE9,IE8,IE7,IE6,IE5
each(['Msxml2.XMLHTTP.6.0',
'Msxml2.XMLHTTP',
'Microsoft.XMLHTTP',
'Msxml2.XMLHTTP.3.0',
'Msxml3.XMLHTTP'],
function (item) {
try {
return (http = new win.ActiveXObject(item));
}
catch (e) {
lib.error('new xhr error: ' + e.message);
}
});
return http;
} catch (e) {
}
// return undefined;
},
supportCORS = (!isLocal && win.XMLHttpRequest) ? ('withCredentials' in (createStandardXHR() || [])) : false,
//Create a xmlHttpRequest object
_newXhr = win.ActiveXObject ? function (crossDomain) {
if (bIE6_9)
return createActiveXHR();
if (!supportCORS && crossDomain && XDomainRequest_) {
return new XDomainRequest_();
}
return !isLocal && createStandardXHR() || createActiveXHR();
} : createStandardXHR,
isInstanceOfXDomainRequest = function (xhr) {
return XDomainRequest_ && (xhr instanceof XDomainRequest_);
},
rnoContent = /^(?:GET|HEAD)$/,
rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg,
accepts = { 'xml': "application/xml, text/xml", 'html': "text/html", 'text': "text/plain", 'json': "application/json, text/javascript", "*": "*/*" },
nilFun = nil,
nativeFetch;
// IE<=8 fixed
if (bIE6_10) {
nilFun = function(){};
}
function _io() { }
lib.mix(_io.prototype, {
url: false, //URL to be loaded
onSuccess: false, //Function that should be called at success
onError: false, //Function that should be called at error
onComplete: false,
method: "GET", //GET or POST
async: true, // async or sync
xhrFields: false,
mimeType: false,
username: false,
password: false,
data: false,
dataType: 'text', //Return type - could be 'blob', 'arraybuffer', 'text', 'xml', 'json', 'user-defined'(which is used for acquiring image data from service)
headers: false,
contentType: 'application/x-www-form-urlencoded; charset=UTF-8',
beforeSend: false,
afterSend: false,
timeout: 0, // seconds default 0 means no timeout
cache: true,
crossDomain: false,
retry: 0,
setRequestHeader: function (name, value) {
var self = this;
self.headers[name] = value;
return self;
}, getAllResponseHeaders: function () {
var self = this;
return self.state === STATE_OK ? self.responseHeadersString : null;
}, getNativeXhr: function () {
var self = this;
return self.nativeXhr;
}, getResponseHeader: function (name) {
var match, self = this, responseHeaders;
name = name.toLowerCase();
if (self.state === STATE_OK) {
if (!(responseHeaders = self.responseHeaders)) {
responseHeaders = self.responseHeaders = {};
while ((match = rheaders.exec(self.responseHeadersString))) {
responseHeaders[match[1].toLowerCase()] = match[2];
}
}
match = responseHeaders[name];
}
return match === undefined ? null : match;
}, overrideMimeType: function (type) {
var self = this;
if (!self.state) {
self.mimeType = type;
}
return self;
}, abort: function (statusText) {
var self = this;
statusText = statusText || "abort";
self.state = STATE_ABORT;
self.status = 0;
self.statusText = statusText;
if (self.nativeXhr) {
self.nativeXhr.abort();
}
self._callback();
return self;
}, _ioReady: function (status, statusText) {
var self = this, isSuccess = false;
if (self.state === STATE_OK || self.state === STATE_ABORT) {
return;
}
if (self.state === STATE_READY)
self.state = STATE_OK;
self.readyState = 4;
if (status >= OK_CODE && status < MULTIPLE_CHOICES || status === NOT_MODIFIED) {
if (status === NOT_MODIFIED) {
statusText = "not modified";
isSuccess = true;
} else {
statusText = "success";
isSuccess = true;
}
} else {
if (status < 0) {
status = 0;
}
}
try {
if (status >= OK_CODE)
self.handleResponseData();
} catch (e) {
lib.error(e.stack || e, "error");
statusText = e.message || "parser error";
}
if (status < OK_CODE || !isSuccess) {
if(self.retry > 0) {
self.retry = self.retry - 1;
setTimeout(function(){
self.sendInternal();
}, 200);
return;
}
}
self.status = status;
self.statusText = statusText;
self._callback(isSuccess);
},
_callback: function (isSuccess) {
var self = this, timeoutTimer = self.timeoutTimer;
if (timeoutTimer) {
clearTimeout(timeoutTimer);
self.timeoutTimer = 0;
}
each([isSuccess ? self.onSuccess : self.onError, self.onComplete], function (func) {
if (lib.isFunction(func)) {
func.apply(self.context, [self.responseData, self.statusText, self]);
}
});
self.responseData = null;
},
handleResponseData: function () {
var self = this, result, dataType = self.dataType, nativeXhr = self.nativeXhr;
self.responseText = result = nativeXhr.responseText || '';
try {
var xml = nativeXhr.responseXML;
if (xml && xml.documentElement /*#4958#*/) {
self.responseXML = xml;
}
} catch (e) { }
self.responseData = result;
},
sendInternal: function (opt) {
//The XMLHttpRequest object is recreated at every call - to defeat Cache problem in IE
var self = this, c, i,
method, url, dataType, contentType,
nativeXhr, xhrFields, mimeType, requestHeaders,
hasContent, sendContent;
c = self._setup(opt);
method = c.method;
if(lib.isString(method)) {
method = method.toUpperCase();
}
contentType = c.contentType;
url = c.url;
dataType = c.dataType;
mimeType = c.mimeType;
if (!lib.isString(url)) return;
self.nativeXhr = nativeXhr = _newXhr(c.crossDomain);
if (!nativeXhr) return;
try {
self.state = STATE_READY;
if (c.username) {
nativeXhr.open(method, url, c.async, c.username, c.password);
} else {
nativeXhr.open(method, url, c.async);
}
if ((c.async || navInfo.bIE) && dataType && dataType != 'user-defined' && ('responseType' in nativeXhr)) {
try {
nativeXhr.responseType = dataType;
} catch (e) { }
}
} catch (ex) {
if (self.state < 2) {
lib.error(ex.stack || ex, "error");
self._ioReady(-1, _strOpenErr +
(lib.isNumber(ex.number) ? '(' + ex.number + ')' : '') +
(ex.message || ''));
} else {
lib.error(ex);
}
return;
}
xhrFields = c.xhrFields || {};
if ('withCredentials' in xhrFields) {
if (!supportCORS) {
delete xhrFields.withCredentials;
}
}
each(xhrFields, function(val, key){
try {
nativeXhr[key] = val;
} catch (e) {
lib.error(e);
}
});
// Override mime type if supported
if (mimeType && nativeXhr.overrideMimeType) {
nativeXhr.overrideMimeType(mimeType);
}
requestHeaders = c.headers || {};
var xRequestHeader = requestHeaders['X-Requested-With'];
if (xRequestHeader === false) {
delete requestHeaders['X-Requested-With'];
}
// ie<10 XDomainRequest does not support setRequestHeader
if ('setRequestHeader' in nativeXhr) {
if (contentType) {
nativeXhr.setRequestHeader("Content-Type", c.contentType);
}
nativeXhr.setRequestHeader("Accept", dataType && accepts[dataType] ? accepts[dataType] + (dataType === "*" ? "" : ", */*; q=0.01") : accepts["*"]);
each(requestHeaders, function(val, key){
nativeXhr.setRequestHeader(key, val);
});
}
if(!c.cache)
{
nativeXhr.setRequestHeader('If-Modified-Since', '0');
nativeXhr.setRequestHeader('Cache-Control', 'no-cache');
}
hasContent = !rnoContent.test(c.method);
sendContent = hasContent && c.data || null;
if (hasContent && bIE6_9) {
sendContent = c.data;
}
// timeout
if (c.async && c.timeout > 0) {
if(c.timeout<300)
c.timeout=300;
self.timeoutTimer = setTimeout(function () {
self.abort("timeout");
}, c.timeout);
}
try {
self.state = STATE_READY;
if (lib.isFunction(self.beforeSend)) {
var r = self.beforeSend(nativeXhr, self);
if (r === false) {
self.abort("cancel");
return;
}
}
nativeXhr.send(sendContent);
sendContent = null;
c.data = null;
if (lib.isFunction(self.afterSend))
self.afterSend(self);
} catch (e) {
if (self.state < 2) {
lib.error(e.stack || e, "error");
self._ioReady(-1, _strSendErr + (e.message || ''));
} else {
lib.error(e);
}
}
if (!c.async || nativeXhr.readyState === 4) {
self._xhrCallback();
} else {
if (isInstanceOfXDomainRequest(nativeXhr)) {
nativeXhr.onload = function () {
nativeXhr.readyState = 4;
nativeXhr.status = OK_CODE;
self._xhrCallback();
};
nativeXhr.onerror = function () {
nativeXhr.readyState = 4;
nativeXhr.status = SERVER_ERR;
self._xhrCallback();
};
} else {
nativeXhr.onreadystatechange = function () {
self._xhrCallback();
};
}
}
},
_xhrCallback: function (evt, abort) { //Call a function when the state changes.
var self = this, nativeXhr = self.nativeXhr;
try {
if (nativeXhr.readyState === 4 || abort) { //Ready State will be 4 when the document is loaded.
if (isInstanceOfXDomainRequest(nativeXhr)) {
nativeXhr.onerror = nilFun;
nativeXhr.onload = nilFun;
} else {
nativeXhr.onreadystatechange = nilFun;
}
if (abort) {
if (nativeXhr.readyState !== 4) {
nativeXhr.abort();
}
} else {
if (!isInstanceOfXDomainRequest(nativeXhr)) {
self.responseHeadersString = nativeXhr.getAllResponseHeaders();
}
var status = nativeXhr.status, statusText;
try {
statusText = nativeXhr.statusText;
} catch (e) {
lib.error("xhr statusText error: ");
lib.error(e);
statusText = "";
}
self._ioReady(status, statusText);
}
}
} catch (e) {
lib.error(e.stack || e, "error");
nativeXhr.onreadystatechange = nilFun;
if (!abort) {
self._ioReady(-1, e.message || "process error");
}
}
},
_setup: function (opt) {
var self = this, dataType, i, requestHeaders, url, uri;
if(opt) {
self.context = opt.context;
delete opt.context;
if (opt instanceof _io) {
opt = opt.config;
}
self.config = opt;
url = opt.url;
if (lib.startsWith(url, 'http://') || lib.startsWith(url, 'https://')) {
uri = new lib.Uri(url);
} else {
if (lib.startsWith(url, '//')) {
opt.url = url = 'http:' + url;
}
uri = simulatedLocation.resolve(url);
}
if (!opt.dataType)
dataType = 'text'; //Default return type is 'text'
else
dataType = opt.dataType.toLowerCase();
opt.dataType = dataType;
if (!opt.method)
opt.method = 'GET'; //Default method is GET
else
opt.method = opt.method.toUpperCase();
if (!("crossDomain" in opt)) {
opt.crossDomain = !uri.isSameOriginAs(simulatedLocation);
}
requestHeaders = opt.headers;
for (i in requestHeaders) {
if (lib.isUndefined(requestHeaders[i]))
delete requestHeaders[i];
}
lib.mix(self, opt);
}
self.state = STATE_READY;
return self;
}
});
// Chrome or Firefox
if(!nativeFetch) {
// fetch
win.fetch = function(url, options){
// options
// {
// mode:"cors", // mode: cors / no-cors / same-origin
// method:"post",
// body:'',
// headers:{
// // set send data type for body
// 'content-type': 'application/json'
// },
// dataType: 'blob', // Return type - could be 'blob', 'arraybuffer', 'text', 'json'
// // NOTE: IE<=9 'blob', 'arraybuffer' -> 'user-defined'
// cache:'reload', // (not supported) http cache: default / no-store / reload / no-cache / force-cache / only-if-cached
// redirect: 'manual', // (not supported) redirect: follow / error / manual
// referrer: 'client', // (not supported) no-referrer / client / URL (string)
// credentials:'include' // (not supported) if carry cookie: omit/ same-origin / include
// };
return new Dynamsoft.Lib.Promise(function(resolutionFunc,rejectionFunc){
var get_ret_obj = function(_bOK, _data, _reason, _io){
return {
'ok': _bOK,
'text': function() {return Dynamsoft.Lib.Promise.resolve(_data);},
'json': function() {
var _json;
if(Dynamsoft.Lib.isString(_data) && _data != '') {
try{
_json = Dynamsoft.Lib.parse(_data);
}catch(_ex){
return Dynamsoft.Lib.Promise.reject({
code: -2443,
message: 'License server response data error.'
});
}
} else {
_json = {};
}
return Dynamsoft.Lib.Promise.resolve(_json);
}
};
}, sFun = function(_data, _reason, _io){
resolutionFunc(get_ret_obj(true, _data, _reason, _io));
}, fFun = function(_data, _reason, _io){
var reason = _reason, status = _io.status;
if(status == NOT_FOUND_CODE || status == BAD_REQUEST || status == FORBIDDEN_REQUEST || status == UN_AUTH_REQUEST ) {
resolutionFunc(get_ret_obj(false, _data, _reason, _io));
return;
} else if(status == ERR_NAME_NOT_RESOLVED || status == ERR_CANNOT_CONNECT || status == ERR_NO_RESPONSE) {
reason = 'NetworkError';
} else {
var isStr = Dynamsoft.Lib.isString(reason);
if(!isStr || isStr && reason == '') {
reason = 'NetworkError';
}
}
rejectionFunc({
'ok': false,
'code': status,
'message': reason,
'httpCode': status,
'errorString': reason
});
}, cfg = {
url: url,
onSuccess: sFun,
onError: fFun,
dataType: 'text'
}, bContentTypeInHeaders = false;
if(options) {
if(options.method) {
cfg.method = options.method;
}
if(options.body) {
cfg.data = options.body;
}
if(options.headers) {
if (!cfg.headers) {
cfg.headers = {};
}
each(options.headers, function(val, key){
if(key.toLowerCase() == 'content-type') {
bContentTypeInHeaders = true;
}
cfg.headers[key] = val;
});
}
if(options.dataType) {
cfg.dataType = options.dataType;
}
if(options.contentType) {
cfg.contentType = options.contentType;
}
}
if(bContentTypeInHeaders) {
cfg.contentType = false;
}
if(cfg.dataType == 'blob' && bIE6_9) {
cfg.mimeType = 'text/plain; charset=x-user-defined';
}
if (!cfg || !lib.isString(cfg.url)) {
lib.log('the url is error.');
return; //Return if a url is not provided
}
var self = new _io();
self.sendInternal(cfg);
});
};
}
})(Dynamsoft);
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