/// <summary>
/// Gets the response text from a web response.
/// </summary>
/// <param name="response">The web response.</param>
/// <returns>The web response contents.</returns>
protected static string GetResponseText(WebResponse response)
{
if (response == null)
{
return(String.Empty);
}
MemoryStream memStream = new MemoryStream();
MediaUtilities.CopyStream(response.GetResponseStream(), memStream);
return(Encoding.UTF8.GetString(memStream.ToArray()));
}
/// <summary>
/// Downloads a report to stream.
/// </summary>
/// <param name="downloadUrl">The download url.</param>
/// <param name="returnMoneyInMicros">True if money values are returned
/// in micros.</param>
/// <param name="postBody">The POST body.</param>
/// <param name="outputStream">The stream to which report is downloaded.
/// </param>
private void DownloadReportToStream(string downloadUrl, bool?returnMoneyInMicros,
string postBody, Stream outputStream)
{
AdWordsErrorHandler errorHandler = new AdWordsErrorHandler(user);
while (true)
{
WebResponse response = null;
HttpWebRequest request = BuildRequest(downloadUrl, returnMoneyInMicros, postBody);
try {
response = request.GetResponse();
MediaUtilities.CopyStream(response.GetResponseStream(), outputStream);
return;
} catch (WebException ex) {
Exception reportsException = null;
try {
response = ex.Response;
if (response != null)
{
MemoryStream memStream = new MemoryStream();
MediaUtilities.CopyStream(response.GetResponseStream(), memStream);
String exceptionBody = Encoding.UTF8.GetString(memStream.ToArray());
reportsException = ParseException(exceptionBody);
}
if (AdWordsErrorHandler.IsOAuthTokenExpiredError(reportsException))
{
reportsException = new AdWordsCredentialsExpiredException(
request.Headers["Authorization"]);
}
} catch (Exception) {
reportsException = ex;
}
if (errorHandler.ShouldRetry(reportsException))
{
errorHandler.PrepareForRetry(reportsException);
}
else
{
throw reportsException;
}
} finally {
if (response != null)
{
response.Close();
}
}
}
}
/// <summary>
/// Downloads the report to memory and closes the underlying stream.
/// </summary>
/// <exception cref="AdsReportsException">If there was an error downloading the report.
/// </exception>
public byte[] Download()
{
this.EnsureStreamIsOpen();
try {
MemoryStream memStream = new MemoryStream();
MediaUtilities.CopyStream(this.Stream, memStream);
this.contents = memStream.ToArray();
this.CloseWebResponse();
} catch (Exception e) {
throw new AdsReportsException("Failed to download report. See inner exception " +
"for more details.", e);
}
return(this.contents);
}
/// <summary>
/// Saves the report to a specified path and closes the underlying stream.
/// </summary>
/// <param name="path">The path to which report is saved.</param>
/// <exception cref="AdsReportsException">If there was an error saving the report.</exception>
public void Save(string path)
{
this.EnsureStreamIsOpen();
try {
using (FileStream fileStream = File.OpenWrite(path)) {
fileStream.SetLength(0);
MediaUtilities.CopyStream(this.Stream, fileStream);
this.CloseWebResponse();
}
this.Path = path;
} catch (Exception e) {
throw new AdsReportsException("Failed to save report. See inner exception " +
"for more details.", e);
}
}
/// <summary>
/// Copy the contents from old stream to new stream.
/// </summary>
private void CopyContentsFromOldStream()
{
MediaUtilities.CopyStream(oldStream, newStream);
newStream.Position = 0;
}
/// <summary>
/// Copy the contents from new stream to old stream.
/// </summary>
private void CopyContentsToOldStream()
{
newStream.Position = 0;
MediaUtilities.CopyStream(newStream, oldStream);
}
public void TestCopyStream()
{
MediaUtilities.CopyStream(sourceStream, targetStream);
Assert.AreEqual(FILE_CONTENTS, Encoding.UTF8.GetString(sourceStream.ToArray()));
}
private bool DownloadReportToStream(string downloadUrl, AdWordsAppConfig config, bool returnMoneyInMicros, Stream outputStream, string postBody, AdWordsUser user)
{
this.response.Text += "\n Creating request...";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(downloadUrl);
if (!string.IsNullOrEmpty(postBody))
{
request.Method = "POST";
}
request.Proxy = config.Proxy;
request.Timeout = config.Timeout;
request.UserAgent = config.GetUserAgent();
if (!string.IsNullOrEmpty(config.ClientEmail))
{
request.Headers.Add("clientEmail: " + config.ClientEmail);
}
else if (!string.IsNullOrEmpty(config.ClientCustomerId))
{
request.Headers.Add("clientCustomerId: " + config.ClientCustomerId);
}
request.ContentType = "application/x-www-form-urlencoded";
if (config.EnableGzipCompression)
{
(request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.GZip
| DecompressionMethods.Deflate;
}
else
{
(request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.None;
}
if (config.AuthorizationMethod == AdWordsAuthorizationMethod.OAuth2)
{
if (user.OAuthProvider != null)
{
request.Headers["Authorization"] = user.OAuthProvider.GetAuthHeader(downloadUrl);
}
else
{
//throw new AdWordsApiException(null, AdWordsErrorMessages.OAuthProviderCannotBeNull);
}
}
else if (config.AuthorizationMethod == AdWordsAuthorizationMethod.ClientLogin)
{
string authToken = (!string.IsNullOrEmpty(config.AuthToken)) ? config.AuthToken :
new AuthToken(config, AdWordsSoapClient.SERVICE_NAME, config.Email,
config.Password).GetToken();
request.Headers["Authorization"] = "GoogleLogin auth=" + authToken;
}
request.Headers.Add("returnMoneyInMicros: " + returnMoneyInMicros.ToString().ToLower());
request.Headers.Add("developerToken: " + config.DeveloperToken);
// The client library will use only apiMode = true.
request.Headers.Add("apiMode", "true");
if (!string.IsNullOrEmpty(postBody))
{
using (StreamWriter writer = new StreamWriter(request.GetRequestStream()))
{
writer.Write(postBody);
}
}
// AdWords API now returns a 400 for an API error.
bool retval = false;
WebResponse response = null;
try
{
this.response.Text += "\n Getting server response...";
response = request.GetResponse();
retval = true;
}
catch (WebException ex)
{
response = ex.Response;
byte[] preview = ConvertStreamToByteArray(response.GetResponseStream(), MAX_ERROR_LENGTH);
string previewString = ConvertPreviewBytesToString(preview);
retval = false;
this.webExceptionTextBox.Text = previewString;
}
MediaUtilities.CopyStream(response.GetResponseStream(), outputStream);
response.Close();
return(retval);
}
