网站帮助企业站seo外包

由于文档属性中没有headers字段， 所以我们需要对源代码进行改造。

首先在变量p中加入headers字段，表示接受此扩展参数。

其次在讲headers字段传入XMLHttpRequest请求中。

完整代码如下：

(function (d) {var r = {init: function (n) {return this.each(function () {var s = d(this);s.data("uploadifive", {inputs: {},inputCount: 0,fileID: 0,queue: {count: 0,selected: 0,replaced: 0,errors: 0,queued: 0,cancelled: 0,},uploads: {current: 0,attempts: 0,successful: 0,errors: 0,count: 0,},});var f = s.data("uploadifive");var p = (f.settings = d.extend({auto: true,headers: {},buttonClass: false,buttonText: "Select Files",checkScript: false,dnd: true,dropTarget: false,fileObjName: "Filedata",fileSizeLimit: 0,fileType: false,formData: {},height: 30,itemTemplate: false,method: "post",multi: true,overrideEvents: [],queueID: false,queueSizeLimit: 0,removeCompleted: false,simUploadLimit: 0,truncateLength: 0,uploadLimit: 0,uploadScript: "uploadifive.php",width: 100,},n));if (isNaN(p.fileSizeLimit)) {var e = parseInt(p.fileSizeLimit) * 1.024;if (p.fileSizeLimit.indexOf("KB") > -1) {p.fileSizeLimit = e * 1e3;} else if (p.fileSizeLimit.indexOf("MB") > -1) {p.fileSizeLimit = e * 1e6;} else if (p.fileSizeLimit.indexOf("GB") > -1) {p.fileSizeLimit = e * 1e9;}} else {p.fileSizeLimit = p.fileSizeLimit * 1024;}f.inputTemplate = d('<input class="file" type="file">').css({"font-size": p.height + "px",opacity: 0,position: "absolute",top: "-3px","z-index": 999,});f.createInput = function () {var e = f.inputTemplate.clone();var t = (e.name = "input" + f.inputCount++);if (p.multi) {e.attr("multiple", true);}if (p.fileType) {e.attr("accept", p.fileType);}e.bind("change", function () {f.queue.selected = 0;f.queue.replaced = 0;f.queue.errors = 0;f.queue.queued = 0;var e = this.files.length;f.queue.selected = e;if (f.queue.count + e > p.queueSizeLimit &&p.queueSizeLimit !== 0) {if (d.inArray("onError", p.overrideEvents) < 0) {alert("上传列表中最多只能存放 (" + p.queueSizeLimit + ")个文件");}if (typeof p.onError === "function") {p.onError.call(s, "QUEUE_LIMIT_EXCEEDED");}} else {for (var i = 0; i < e; i++) {file = this.files[i];f.addQueueItem(file);}f.inputs[t] = this;f.createInput();}if (p.auto) {r.upload.call(s);}if (typeof p.onSelect === "function") {p.onSelect.call(s, f.queue);}});if (f.currentInput) {f.currentInput.hide();}f.button.append(e);f.currentInput = e;};f.destroyInput = function (e) {d(f.inputs[e]).remove();delete f.inputs[e];f.inputCount--;};f.drop = function (e) {f.queue.selected = 0;f.queue.replaced = 0;f.queue.errors = 0;f.queue.queued = 0;var i = e.dataTransfer;var t = (i.name = "input" + f.inputCount++);var n = i.files.length;f.queue.selected = n;if (f.queue.count + n > p.queueSizeLimit && p.queueSizeLimit !== 0) {if (d.inArray("onError", p.overrideEvents) < 0) {alert("The maximum number of queue items has been reached (" +p.queueSizeLimit +").  Please select fewer files.");}if (typeof p.onError === "function") {p.onError.call(s, "QUEUE_LIMIT_EXCEEDED");}} else {for (var o = 0; o < n; o++) {file = i.files[o];f.addQueueItem(file);}f.inputs[t] = i;}if (p.auto) {r.upload.call(s);}if (typeof p.onDrop === "function") {p.onDrop.call(s, i.files, i.files.length);}e.preventDefault();e.stopPropagation();};f.fileExistsInQueue = function (e) {for (var i in f.inputs) {input = f.inputs[i];limit = input.files.length;for (var t = 0; t < limit; t++) {existingFile = input.files[t];if (existingFile.name == e.name && !existingFile.complete) {return true;}}}return false;};f.removeExistingFile = function (e) {for (var i in f.inputs) {input = f.inputs[i];limit = input.files.length;for (var t = 0; t < limit; t++) {existingFile = input.files[t];if (existingFile.name == e.name && !existingFile.complete) {f.queue.replaced++;r.cancel.call(s, existingFile, true);}}}};if (p.itemTemplate == false) {f.queueItem = d('<div id="${fileID}" class="uploadifive-queue-item">                        <div class="uploadifive-queue-item-baseimg"/>                        <span class="fileName">${fileName}</span>                        <div class="uploadifive-queue-item-control">                            <a  href="javascript:$(\'#${instanceID}\').uploadifive(\'cancel\', \'${fileID}\')" class="uploadifive-queue-item-control-base uploadifive-queue-item-control-cancel">取消</a>                        </div>                        <div class="uploadifive-queue-item-extend">                            <div class="uploadifive-progress">    \t\t\t\t\t\t    <div class="uploadifive-progress-bar">\x3c!--Progress Bar--\x3e</div>    \t\t\t\t\t    </div>                            <span class="data"></span>                        </div>    \t\t\t\t</div>');} else {f.queueItem = d(p.itemTemplate);}f.addQueueItem = function (e) {if (d.inArray("onAddQueueItem", p.overrideEvents) < 0) {f.removeExistingFile(e);e.queueItem = f.queueItem.clone();e.queueItem.attr("id", p.id + "-file-" + f.fileID++);e.queueItem.find(".close").bind("click", function () {r.cancel.call(s, e);return false;});var i = e.name;if (i.length > p.truncateLength && p.truncateLength != 0) {i = i.substring(0, p.truncateLength) + "...";}e.queueItem.find(".filename").html(i);var t = Math.round(e.size / 1024);var n = "KB";if (t > 1e3) {t = Math.round(t / 1e3);n = "MB";}var o = t.toString().split(".");t = o[0];if (o.length > 1) {t += "." + o[1].substr(0, 2);}t += n;e.queueItem.find(".filesize").html("&nbsp;&nbsp;&nbsp;(" + t + ")");e.queueItem.data("file", e);f.queueEl.append(e.queueItem);}if (typeof p.onAddQueueItem === "function") {p.onAddQueueItem.call(s, e);}if (e.size > p.fileSizeLimit && p.fileSizeLimit != 0) {f.error("FILE_SIZE_LIMIT_EXCEEDED", e);} else {f.queue.queued++;f.queue.count++;}};f.removeQueueItem = function (e, i, t) {if (!t) t = 0;var n = i ? 0 : 500;if (e.queueItem) {if (e.queueItem.find(".fileinfo").html() != " - 上传成功") {e.queueItem.find(".fileinfo").html(" - 已取消");}e.queueItem.find(".progress-bar").width(0);e.queueItem.delay(t).fadeOut(n, function () {d(this).remove();});delete e.queueItem;f.queue.count--;}};f.filesToUpload = function () {var e = 0;for (var i in f.inputs) {input = f.inputs[i];limit = input.files.length;for (var t = 0; t < limit; t++) {file = input.files[t];if (!file.skip && !file.complete) {e++;}}}return e;};f.checkExists = function (i) {if (d.inArray("onCheck", p.overrideEvents) < 0) {d.ajaxSetup({ async: false });var e = d.extend(p.formData, { filename: i.name });d.post(p.checkScript, e, function (e) {i.exists = parseInt(e);});if (i.exists) {if (!confirm("A file named " +i.name +" already exists in the upload folder.\nWould you like to replace it?")) {r.cancel.call(s, i);return true;}}}if (typeof p.onCheck === "function") {p.onCheck.call(s, i, i.exists);}return false;};f.uploadFile = function (a, l) {if (!a.skip && !a.complete && !a.uploading) {a.uploading = true;f.uploads.current++;f.uploads.attempted++;xhr = a.xhr = new XMLHttpRequest();if (typeof FormData === "function" ||typeof FormData === "object") {var e = new FormData();e.append(p.fileObjName, a);for (i in p.formData) {e.append(i, p.formData[i]);}xhr.open(p.method, p.uploadScript, true);if (p.headers) {let headersValues = null;headersValues = Object.keys(p.headers);headersValues.forEach((key) => {xhr.setRequestHeader(key, p.headers[key]);});}xhr.upload.addEventListener("progress",function (e) {if (e.lengthComputable) {f.progress(e, a);}},false);xhr.addEventListener("load", function (e) {if (this.readyState == 4) {a.uploading = false;if (this.status == 200) {if (a.xhr.responseText !== "Invalid file type.") {f.uploadComplete(e, a, l);} else {f.error(a.xhr.responseText, a, l);}} else if (this.status == 404) {f.error("404_FILE_NOT_FOUND", a, l);} else if (this.status == 403) {f.error("403_FORBIDDEN", a, l);} else {f.error("Unknown Error", a, l);}}});xhr.send(e);} else {var t = new FileReader();t.onload = function (e) {var i = "-------------------------" + new Date().getTime(),t = "--",n = "\r\n",o = "";o += t + i + n;o +='Content-Disposition: form-data; name="' +p.fileObjName +'"';if (a.name) {o += '; filename="' + a.name + '"';}o += n;o += "Content-Type: application/octet-stream" + n + n;o += e.target.result + n;for (key in p.formData) {o += t + i + n;o +='Content-Disposition: form-data; name="' +key +'"' +n +n;o += p.formData[key] + n;}o += t + i + t + n;xhr.upload.addEventListener("progress",function (e) {f.progress(e, a);},false);xhr.addEventListener("load",function (e) {a.uploading = false;var i = this.status;if (i == 404) {f.error("404_FILE_NOT_FOUND", a, l);} else {if (a.xhr.responseText != "Invalid file type.") {f.uploadComplete(e, a, l);} else {f.error(a.xhr.responseText, a, l);}}},false);var r = p.uploadScript;if (p.method == "get") {var u = d(p.formData).param();r += u;}xhr.open(p.method, p.uploadScript, true);xhr.setRequestHeader("Content-Type","multipart/form-data; boundary=" + i);if (typeof p.onUploadFile === "function") {p.onUploadFile.call(s, a);}xhr.sendAsBinary(o);};t.readAsBinaryString(a);}}};f.progress = function (e, i) {if (d.inArray("onProgress", p.overrideEvents) < 0) {if (e.lengthComputable) {var t = Math.round((e.loaded / e.total) * 100);}i.queueItem.find(".fileinfo").html(" - " + t + "%");i.queueItem.find(".progress-bar").css("width", t + "%");}if (typeof p.onProgress === "function") {p.onProgress.call(s, i, e);}};f.error = function (e, i, t) {if (d.inArray("onError", p.overrideEvents) < 0) {switch (e) {case "404_FILE_NOT_FOUND":errorMsg = "404 Error";break;case "403_FORBIDDEN":errorMsg = "403 Forbidden";break;case "FORBIDDEN_FILE_TYPE":errorMsg = "Forbidden File Type";break;case "FILE_SIZE_LIMIT_EXCEEDED":errorMsg = "File Too Large";break;default:errorMsg = "Unknown Error";break;}i.queueItem.addClass("error").find(".fileinfo").html(" - " + errorMsg);i.queueItem.find(".progress").remove();}if (typeof p.onError === "function") {p.onError.call(s, e, i);}i.skip = true;if (e == "404_FILE_NOT_FOUND") {f.uploads.errors++;} else {f.queue.errors++;}if (t) {r.upload.call(s, null, true);}};f.uploadComplete = function (e, i, t) {if (d.inArray("onUploadComplete", p.overrideEvents) < 0) {i.queueItem.find(".progress-bar").css("width", "100%");i.queueItem.find(".fileinfo").html(" - 上传成功");i.queueItem.find(".progress").slideUp(250);i.queueItem.addClass("complete");}if (typeof p.onUploadComplete === "function") {p.onUploadComplete.call(s, i, i.xhr.responseText);}if (p.removeCompleted) {setTimeout(function () {r.cancel.call(s, i);}, 3e3);}i.complete = true;f.uploads.successful++;f.uploads.count++;f.uploads.current--;delete i.xhr;if (t) {r.upload.call(s, null, true);}};f.queueComplete = function () {if (typeof p.onQueueComplete === "function") {p.onQueueComplete.call(s, f.uploads);}};if (window.File &&window.FileList &&window.Blob &&(window.FileReader || window.FormData)) {p.id = "uploadifive-" + s.attr("id");f.button = d('<div id="' +p.id +'" class="uploadifive-button">' +p.buttonText +"</div>");if (p.buttonClass) f.button.addClass(p.buttonClass);f.button.css({height: p.height,"line-height": p.height + "px",overflow: "hidden",position: "relative","text-align": "center",width: p.width,});s.before(f.button).appendTo(f.button).hide();f.createInput.call(s);if (!p.queueID) {p.queueID = p.id + "-queue";f.queueEl = d('<div id="' + p.queueID + '" class="uploadifive-queue" />');f.button.after(f.queueEl);} else {f.queueEl = d("#" + p.queueID);}if (p.dnd) {var t = p.dropTarget ? d(p.dropTarget) : f.queueEl.get(0);t.addEventListener("dragleave",function (e) {e.preventDefault();e.stopPropagation();},false);t.addEventListener("dragenter",function (e) {e.preventDefault();e.stopPropagation();},false);t.addEventListener("dragover",function (e) {e.preventDefault();e.stopPropagation();},false);t.addEventListener("drop", f.drop, false);}if (!XMLHttpRequest.prototype.sendAsBinary) {XMLHttpRequest.prototype.sendAsBinary = function (e) {function i(e) {return e.charCodeAt(0) & 255;}var t = Array.prototype.map.call(e, i);var n = new Uint8Array(t);this.send(n.buffer);};}if (typeof p.onInit === "function") {p.onInit.call(s);}} else {if (typeof p.onFallback === "function") {p.onFallback.call(s);}return false;}});},debug: function () {return this.each(function () {console.log(d(this).data("uploadifive"));});},clearQueue: function () {this.each(function () {var e = d(this),t = e.data("uploadifive"),n = t.settings;for (var o in t.inputs) {input = t.inputs[o];limit = input.files.length;for (i = 0; i < limit; i++) {file = input.files[i];r.cancel.call(e, file);}}if (typeof n.onClearQueue === "function") {n.onClearQueue.call(e, d("#" + t.settings.queueID));}});},cancel: function (n, o) {this.each(function () {var e = d(this),i = e.data("uploadifive"),t = i.settings;if (typeof n === "string") {if (!isNaN(n)) {fileID = "uploadifive-" + d(this).attr("id") + "-file-" + n;}n = d("#" + fileID).data("file");}n.skip = true;i.filesCancelled++;if (n.uploading) {i.uploads.current--;n.uploading = false;n.xhr.abort();delete n.xhr;r.upload.call(e);}if (d.inArray("onCancel", t.overrideEvents) < 0) {i.removeQueueItem(n, o);}if (typeof t.onCancel === "function") {t.onCancel.call(e, n);}});},upload: function (o, r) {this.each(function () {var e = d(this),i = e.data("uploadifive"),t = i.settings;if (o) {i.uploadFile.call(e, o);} else {if (i.uploads.count + i.uploads.current < t.uploadLimit ||t.uploadLimit == 0) {if (!r) {i.uploads.attempted = 0;i.uploads.successsful = 0;i.uploads.errors = 0;var n = i.filesToUpload();if (typeof t.onUpload === "function") {t.onUpload.call(e, n);}}d("#" + t.queueID).find(".uploadifive-queue-item").not(".error, .complete").each(function () {_file = d(this).data("file");if ((i.uploads.current >= t.simUploadLimit &&t.simUploadLimit !== 0) ||(i.uploads.current >= t.uploadLimit && t.uploadLimit !== 0) ||(i.uploads.count >= t.uploadLimit && t.uploadLimit !== 0)) {return false;}if (t.checkScript) {_file.checking = true;skipFile = i.checkExists(_file);_file.checking = false;if (!skipFile) {i.uploadFile(_file, true);}} else {i.uploadFile(_file, true);}});if (d("#" + t.queueID).find(".uploadifive-queue-item").not(".error, .complete").size() == 0) {i.queueComplete();}} else {if (i.uploads.current == 0) {if (d.inArray("onError", t.overrideEvents) < 0) {if (i.filesToUpload() > 0 && t.uploadLimit != 0) {alert("The maximum upload limit has been reached.");}}if (typeof t.onError === "function") {t.onError.call(e, "UPLOAD_LIMIT_EXCEEDED", i.filesToUpload());}}}}});},destroy: function () {this.each(function () {var e = d(this),i = e.data("uploadifive"),t = i.settings;r.clearQueue.call(e);if (!t.queueID) d("#" + t.queueID).remove();e.siblings("input").remove();e.show().insertBefore(i.button);i.button.remove();if (typeof t.onDestroy === "function") {t.onDestroy.call(e);}});},};d.fn.uploadifive = function (e) {if (r[e]) {return r[e].apply(this, Array.prototype.slice.call(arguments, 1));} else if (typeof e === "object" || !e) {return r.init.apply(this, arguments);} else {d.error("The method " + e + " does not exist in $.uploadify");}};
})(jQuery);