public async Task <DocumentUpdateResult> UpdateBookmrkValue(string documentId, IEnumerable <DestinationPoint> destinationPoints, string value)
{
DocumentUpdateResult retValue = new DocumentUpdateResult()
{
IsSuccess = true
};
try
{
string authHeader = GetAuthorizationHeader();
DocumentCheckResult documentResult = await GetDocumentUrlByID(new DocumentCheckResult()
{
DocumentId = documentId
});
if (documentResult.IsSuccess)
{
FileContextInfo fileContextInfo = await GetFileContextInfo(authHeader, documentResult.DocumentUrl);
var stream = await GetFileStream(authHeader, documentResult.DocumentUrl, fileContextInfo);
stream.Seek(0, SeekOrigin.Begin);
UpdateStream(destinationPoints, value, stream, retValue);
await UploadStream(authHeader, documentResult.DocumentUrl, stream, fileContextInfo);
return(retValue);
}
else
{
retValue.IsSuccess = false;
retValue.Message.Add(documentResult.Message);
}
}
catch (Exception ex)
{
retValue.IsSuccess = false;
retValue.Message.Add(ex.ToString());
}
return(retValue);
}
static private async Task <Stream> GetFileStream(string authHeader, string destinationFileName, FileContextInfo fileContextInfo)
{
var filePath = new Uri(destinationFileName).AbsolutePath;
var stream = new System.IO.MemoryStream();
try
{
using (var client = new WebClient())
{
client.Headers.Add(HttpRequestHeader.Authorization, authHeader);
var fileUri = new Uri(destinationFileName);
var downloadData = await client.DownloadDataTaskAsync($"{fileContextInfo.WebUrl}/_api/web/getfilebyserverrelativeurl('{filePath}')/$value");
await stream.WriteAsync(downloadData, 0, downloadData.Length);
return(stream);
}
}
catch (Exception ex)
{
stream.Dispose();
throw ex;
}
}
static private async Task UploadStream(string authHeader, string destinationFileName, Stream stream, FileContextInfo contextInfo)
{
var fileAbsolutePath = new Uri(destinationFileName).AbsolutePath;
int index = fileAbsolutePath.LastIndexOf('/');
var filePath = fileAbsolutePath.Substring(0, index);
var fileName = fileAbsolutePath.Substring(index + 1);
using (var client = new WebClient())
{
client.Headers.Add(HttpRequestHeader.Authorization, authHeader);
client.Headers.Add(HttpRequestHeader.Accept, "application/json");
var uploadUri = new Uri($"{contextInfo.WebUrl}/_api/web/GetFolderByServerRelativeUrl(@filePath)/Files/add(url='{fileName}',overwrite=true)?@filePath='{filePath}'");
var returnValue = await client.UploadDataTaskAsync(uploadUri, "POST", (stream as MemoryStream).ToArray());
}
}