我试图让我们网站的访问者将视频上传到我们的 YouTube 频道。因此，我不想使用 OAuth 处理身份验证，否则我将需要在任何地方分发我们的用户名和密码。而且我不想直接上传，因为我不想自己托管视频。
因此，我有一个在面板中收集一些详细信息的表单，该按钮强制将帖子返回到我创建 Video 对象并获取 FormUploadToken 的代码后面。然后，我使用这些信息创建一个发布到页面上的 Literal 的内容。
选择文件，然后单击上传按钮。立即触发中止事件，但没有理由说明原因。
有任何想法吗？？帮助将不胜感激：
<form id="Form1" runat="server">
<asp:Literal ID="Literal1" runat="server"></asp:Literal>
<br />
<dx:ASPxPanel ID="ASPxPanel1" runat="server" Width="200px">
<PanelCollection>
<dx:PanelContent ID="PanelContent1" runat="server" SupportsDisabledAttribute="True">
<dx:ASPxLabel ID="ASPxLabel1" runat="server" Text="Name"> </dx:ASPxLabel>
<dx:ASPxTextBox ID="NameTextBox" runat="server" Width="170px" Text="Simon"> </dx:ASPxTextBox>
<dx:ASPxLabel ID="ASPxLabel2" runat="server" Text="Email address"> </dx:ASPxLabel>
<dx:ASPxTextBox ID="EmailTextBox" runat="server" Width="170px" Text="info@example.com"> </dx:ASPxTextBox>
<dx:ASPxLabel ID="ASPxLabel3" runat="server" Text="Video title"> </dx:ASPxLabel>
<dx:ASPxTextBox ID="VideoTitleTextBox" runat="server" Width="170px" Text="My new video title"> </dx:ASPxTextBox>
<dx:ASPxLabel ID="ASPxLabel4" runat="server" Text="Keywords - comma separated"> </dx:ASPxLabel>
<dx:ASPxTextBox ID="KeywordsTextBox" runat="server" Width="170px" Text="India, Kochin"> </dx:ASPxTextBox>
<dx:ASPxLabel ID="ASPxLabel5" runat="server" Text="Video description"> </dx:ASPxLabel>
<dx:ASPxTextBox ID="VideoDescriptionTextBox" runat="server" Width="170px" Text="An amazing description that makes a lot of sense"> </dx:ASPxTextBox>
<dx:ASPxButton ID="ASPxButton1" runat="server" onclick="VideoUploadBttn_Click" Text="ASPxButton"> </dx:ASPxButton>
</dx:PanelContent>
</PanelCollection>
</dx:ASPxPanel>
</form>
<dx:ASPxPanel ID="ASPxPanel2" runat="server" Width="200px" Visible="False">
<PanelCollection>
<dx:PanelContent ID="PanelContent2" runat="server" SupportsDisabledAttribute="True">
<asp:Literal ID="Literal2" runat="server"></asp:Literal>
</dx:PanelContent>
</PanelCollection>
</dx:ASPxPanel>
<script type="text/javascript">
function fileSelected() {
var file = document.getElementById('fileToUpload').files[0];
if (file) {
var fileSize = 0;
if (file.size > 1024 * 1024)
fileSize = (Math.round(file.size * 100 / (1024 * 1024)) / 100).toString() + 'MB';
else
fileSize = (Math.round(file.size * 100 / 1024) / 100).toString() + 'KB';
document.getElementById('fileName').innerHTML = 'Name: ' + file.name;
document.getElementById('fileSize').innerHTML = 'Size: ' + fileSize;
document.getElementById('fileType').innerHTML = 'Type: ' + file.type;
}
}
function uploadFile() {
var fd = new FormData();
fd.append("fileToUpload", document.getElementById('fileToUpload').files[0]);
var xhr = new XMLHttpRequest();
xhr.upload.addEventListener("progress", uploadProgress, false);
xhr.addEventListener("load", uploadComplete, false);
xhr.addEventListener("error", uploadFailed, false);
xhr.addEventListener("abort", uploadCanceled, false);
xhr.open("POST", document.UploadForm.action);
console.log('action url: ' + document.UploadForm.action);
xhr.send(fd);
}
function uploadProgress(evt) {
if (evt.lengthComputable) {
var percentComplete = Math.round(evt.loaded * 100 / evt.total);
document.getElementById('progressNumber').innerHTML = percentComplete.toString() + '%';
}
else {
document.getElementById('progressNumber').innerHTML = 'unable to compute';
}
}
function uploadComplete(evt) {
/* This event is raised when the server send back a response */
alert(evt.target.responseText);
}
function uploadFailed(evt) {
alert("There was an error attempting to upload the file.");
}
function uploadCanceled(evt) {
alert("The upload has been canceled by the user or the browser dropped the connection.");
console.log(evt);
}
</script>
然后后面的代码是这样的：
protected void VideoUploadBttn_Click(object sender, EventArgs e)
{
Video newVideo = new Video();
newVideo.Title = VideoTitleTextBox.Text;
newVideo.Tags.Add(new MediaCategory("Travel", YouTubeNameTable.CategorySchema));
newVideo.Keywords = KeywordsTextBox.Text;
newVideo.Description = VideoDescriptionTextBox.Text;
newVideo.YouTubeEntry.Private = false;
newVideo.Keywords = "Travel";
newVideo.Tags.Add(new MediaCategory("Motorbike", YouTubeNameTable.DeveloperTagSchema));
// alternatively, you could just specify a descriptive string
// newVideo.YouTubeEntry.setYouTubeExtension("location", "Mountain View, CA");
YouTubeRequestSettings settings = new YouTubeRequestSettings(_AppName, _APIKey, _Username, _Password);
YouTubeRequest request = new YouTubeRequest(settings);
FormUploadToken uploadToken = request.CreateFormUploadToken(newVideo);
string actionUrl = uploadToken.Url;
string token = uploadToken.Token;
StringBuilder sb = new StringBuilder();
string url = String.Format("{0}?nexturl={1}", actionUrl, System.Web.HttpUtility.UrlEncode("http://bbc.co.uk"));
sb.AppendFormat("<form name=\"UploadForm\" action=\"{0}\" method =\"post\" enctype=\"multipart/form-data\" >", url);
sb.Append("<input type=\"file\" name=\"file\" id=\"fileToUpload\" onchange=\"fileSelected();\" />");
sb.AppendFormat("<input type=\"hidden\" name=\"token\" value=\"{0}\"/>", token);
sb.Append("<div id=\"fileName\"></div>");
sb.Append("<div id=\"fileSize\"></div>");
sb.Append("<div id=\"fileType\"></div>");
sb.Append("<input type=\"submit\" value=\"Upload\" onclick=\"uploadFile()\" />");
sb.Append("<div id=\"progressNumber\"></div>");
sb.Append("</form>");
Literal2.Text = sb.ToString();
ASPxPanel1.Visible = false;
ASPxPanel2.Visible = true;
}