/// <summary>
/// Put's a file as a stream using the REST API documented at https://developers.google.com/drive/v3/web/manage-uploads#multipart
/// </summary>
/// <param name="szFileName">The file name to use</param>
/// <param name="ms">The stream of the data</param>
/// <param name="szMimeType">The mime type for the data</param>
/// <returns>True for success</returns>
/// <exception cref="MyFlightbookException"></exception>
/// <exception cref="System.Net.Http.HttpRequestException"></exception>
public async Task <IReadOnlyDictionary <string, string> > PutFile(Stream ms, string szFileName, string szMimeType)
{
if (!CheckAccessToken())
{
throw new MyFlightbookException("Google drive: access token missing or expired");
}
bool fIsCSV = szMimeType.CompareCurrentCultureIgnoreCase("text/csv") == 0;
ms.Seek(0, SeekOrigin.Begin); // write out the whole stream. UploadAsync appears to pick up from the current location, which is the end-of-file after writing to a ZIP.
string szResult = string.Empty;
HttpResponseMessage response = null;
using (HttpClient httpClient = new HttpClient())
{
httpClient.DefaultRequestHeaders.Add("Authorization", "Bearer " + AuthState.AccessToken);
if (String.IsNullOrEmpty(RootFolderID))
{
RootFolderID = await IDForFolder(RootPath);
if (String.IsNullOrEmpty(RootFolderID))
{
RootFolderID = await CreateFolder(Branding.CurrentBrand.AppName);
}
}
// CSV loses its extension when uploaded because we map it to a google spreadsheet. So if it's CSV AND we are patching an existing file, drop the extension so that we ov
// update the existing file if it is present. If CSV, strip the extension
string szFileNameToCheck = fIsCSV ? Path.GetFileNameWithoutExtension(szFileName) : szFileName;
string idExisting = null;
if (!String.IsNullOrEmpty(RootFolderID))
{
idExisting = await IDForFile(szFileNameToCheck, RootFolderID);
}
// If we got a hit, use that filename for the udpate
if (!String.IsNullOrEmpty(idExisting))
{
szFileName = szFileNameToCheck;
}
// Create the metadata. Name is most important, but we can also specify mimeType for CSV to import into GoogleDocs
Dictionary <string, object> dictMeta = new Dictionary <string, object>()
{
{ "name", szFileName }
};
if (fIsCSV)
{
dictMeta["mimeType"] = "application/vnd.google-apps.spreadsheet"; // get it to show up in google drive sheets.
}
if (String.IsNullOrEmpty(idExisting) && !String.IsNullOrEmpty(RootFolderID))
{
dictMeta["parents"] = new List <string>()
{
RootFolderID
}
}
;
// Create the form. The form itself needs the authtoken header
using (MultipartContent form = new MultipartContent("related"))
{
// Next add the metadata - it is in Json format
string szJSonMeta = JsonConvert.SerializeObject(dictMeta);
StringContent metadata = new StringContent(szJSonMeta, System.Text.Encoding.UTF8);
metadata.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json")
{
CharSet = "UTF-8"
};
form.Add(metadata);
// Finally, add the body, with its appropriate mime type.
StreamContent body = new StreamContent(ms);
body.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue(szMimeType);
form.Add(body);
try
{
response = (String.IsNullOrEmpty(idExisting)) ?
await httpClient.PostAsync(szURLUploadEndpoint, form) :
await httpClient.PatchAsync(new Uri(String.Format(szURLUpdateEndpointTemplate, idExisting)), form);
szResult = response.Content.ReadAsStringAsync().Result;
response.EnsureSuccessStatusCode();
return((String.IsNullOrEmpty(szResult)) ? null : JsonConvert.DeserializeObject <Dictionary <string, string> >(szResult));
}
catch (System.Net.Http.HttpRequestException ex)
{
if (response == null)
{
throw new MyFlightbookException("Unknown error in GoogleDrive.PutFile", ex);
}
Dictionary <string, GoogleDriveError> d = String.IsNullOrEmpty(szResult) ? null : JsonConvert.DeserializeObject <Dictionary <string, GoogleDriveError> >(szResult);
GoogleDriveError gde = (d == null || !d.ContainsKey("error")) ? null : d["error"];
if (gde != null && gde.code == 403 && gde.errors != null && gde.errors.Length > 0 && gde.errors[0].reason != null && gde.errors[0].reason.CompareCurrentCultureIgnoreCase("storageQuotaExceeded") == 0)
{
throw new MyFlightbookException(Resources.LocalizedText.GoogleDriveOutOfSpace);
}
else
{
throw new MyFlightbookException(response.ReasonPhrase + " " + (szResult ?? string.Empty));
}
}
}
}
}
}
private static async Task <GoogleDriveResultDictionary> SendForm(HttpClient httpClient, Stream ms, Dictionary <string, object> dictMeta, string szMimeType, string idExisting)
{
string szResult = string.Empty;
HttpResponseMessage response = null;
// Create the form. The form itself needs the authtoken header
using (MultipartContent form = new MultipartContent("related"))
{
// Next add the metadata - it is in Json format
string szJSonMeta = JsonConvert.SerializeObject(dictMeta);
using (StringContent metadata = new StringContent(szJSonMeta, System.Text.Encoding.UTF8))
{
metadata.Headers.ContentType = new MediaTypeHeaderValue("application/json")
{
CharSet = "UTF-8"
};
form.Add(metadata);
// Finally, add the body, with its appropriate mime type.
using (StreamContent body = new StreamContent(ms))
{
body.Headers.ContentType = new MediaTypeHeaderValue(szMimeType);
form.Add(body);
try
{
response = (String.IsNullOrEmpty(idExisting)) ?
await httpClient.PostAsync(new Uri(szURLUploadEndpoint), form).ConfigureAwait(false) :
await httpClient.PatchAsync(new Uri(String.Format(CultureInfo.InvariantCulture, szURLUpdateEndpointTemplate, idExisting)), form, false).ConfigureAwait(false);
szResult = await response.Content.ReadAsStringAsync().ConfigureAwait(false);
response.EnsureSuccessStatusCode();
return((String.IsNullOrEmpty(szResult)) ? null : JsonConvert.DeserializeObject <GoogleDriveResultDictionary>(szResult));
}
catch (HttpRequestException ex)
{
if (response == null)
{
throw new MyFlightbookException("Unknown error in GoogleDrive.PutFile", ex);
}
Dictionary <string, GoogleDriveError> d = String.IsNullOrEmpty(szResult) ? null : JsonConvert.DeserializeObject <Dictionary <string, GoogleDriveError> >(szResult);
GoogleDriveError gde = (d == null || !d.ContainsKey("error")) ? null : d["error"];
if (gde != null && gde.code == 403 && gde.errors != null && gde.errors.Count > 0 && gde.errors[0].reason != null && gde.errors[0].reason.CompareCurrentCultureIgnoreCase("storageQuotaExceeded") == 0)
{
throw new MyFlightbookException(Resources.LocalizedText.GoogleDriveOutOfSpace);
}
else
{
throw new MyFlightbookException(response.ReasonPhrase + " " + (szResult ?? string.Empty));
}
}
finally
{
if (response != null)
{
response.Dispose();
}
}
}
}
}
}
