async Task <HttpResponseMessage> DoProcessRequest(HttpRequestMessage request, URL javaUrl, HttpURLConnection httpConnection, CancellationToken cancellationToken)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"{this}.DoProcessRequest ()");
}
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connecting");
}
await httpConnection.ConnectAsync().ConfigureAwait(false);
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connected");
}
} catch (Java.Net.ConnectException ex) {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Connection exception {ex}");
}
// Wrap it nicely in a "standard" exception so that it's compatible with HttpClientHandler
throw new WebException(ex.Message, ex, WebExceptionStatus.ConnectFailure, null);
}
if (httpConnection.DoOutput)
{
await request.Content.CopyToAsync(httpConnection.OutputStream).ConfigureAwait(false);
}
var statusCode = (HttpStatusCode)httpConnection.ResponseCode;
var connectionUri = new Uri(httpConnection.URL.ToString());
// If the request was redirected we need to put the new URL in the request
request.RequestUri = connectionUri;
var ret = new AndroidHttpResponseMessage(javaUrl, httpConnection)
{
RequestMessage = request,
ReasonPhrase = httpConnection.ResponseMessage,
StatusCode = statusCode,
};
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Status code: {statusCode}");
}
if (statusCode == HttpStatusCode.Unauthorized || statusCode == HttpStatusCode.ProxyAuthenticationRequired)
{
// We don't resend the request since that would require new set of credentials if the
// ones provided in Credentials are invalid (or null) and that, in turn, may require asking the
// user which is not something that should be taken care of by us and in this
// context. The application should be responsible for this.
// HttpClientHandler throws an exception in this instance, but I think it's not a good
// idea. We'll return the response message with all the information required by the
// application to fill in the blanks and provide the requested credentials instead.
//
// We should return the body of the response too but, alas, the Java client will throw
// a, wait for it, FileNotFound exception if we attempt to access the input stream. So
// no body, just a dummy. Java FTW!
ret.Content = new StringContent("Unauthorized", Encoding.ASCII);
CopyHeaders(httpConnection, ret);
if (ret.Headers.WwwAuthenticate != null)
{
ProxyAuthenticationRequested = false;
CollectAuthInfo(ret.Headers.WwwAuthenticate);
}
else if (ret.Headers.ProxyAuthenticate != null)
{
ProxyAuthenticationRequested = true;
CollectAuthInfo(ret.Headers.ProxyAuthenticate);
}
ret.RequestedAuthentication = RequestedAuthentication;
return(ret);
}
if (!IsErrorStatusCode(statusCode))
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Reading...");
}
Stream inputStream = new BufferedStream(httpConnection.InputStream);
if (decompress_here)
{
string[] encodings = httpConnection.ContentEncoding?.Split(',');
if (encodings != null)
{
if (encodings.Contains(GZIP_ENCODING, StringComparer.OrdinalIgnoreCase))
{
inputStream = new GZipStream(inputStream, CompressionMode.Decompress);
}
else if (encodings.Contains(DEFLATE_ENCODING, StringComparer.OrdinalIgnoreCase))
{
inputStream = new DeflateStream(inputStream, CompressionMode.Decompress);
}
}
}
ret.Content = new StreamContent(inputStream);
}
else
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Status code is {statusCode}, returning empty content");
}
// For 400 >= response code <= 599 the Java client throws the FileNotFound exeption when attempting to read from the connection
// Client tests require we return no content here
ret.Content = new StringContent(String.Empty, Encoding.ASCII);
}
CopyHeaders(httpConnection, ret);
IEnumerable <string> cookieHeaderValue;
if (!UseCookies || CookieContainer == null || !ret.Headers.TryGetValues("Set-Cookie", out cookieHeaderValue) || cookieHeaderValue == null)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"No cookies");
}
return(ret);
}
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Parsing cookies");
}
CookieContainer.SetCookies(connectionUri, String.Join(",", cookieHeaderValue));
} catch (Exception ex) {
// We don't want to terminate the response because of a bad cookie, hence just reporting
// the issue. We might consider adding a virtual method to let the user handle the
// issue, but not sure if it's really needed. Set-Cookie header will be part of the
// header collection so the user can always examine it if they spot an error.
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Failed to parse cookies in the server response. {ex.GetType ()}: {ex.Message}");
}
}
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Returning");
}
return(ret);
}
/** Called when the activity is first created. */
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
if (APP_ID == null)
{
Util.ShowAlert(this, "Warning", "Facebook Applicaton ID must be " +
"specified before running this example: see Example.java");
}
SetContentView(Resource.Layout.main);
mLoginButton = (LoginButton)FindViewById(Resource.Id.login);
mText = (TextView)FindViewById(Resource.Id.txt);
mRequestButton = (Button)FindViewById(Resource.Id.requestButton);
mPostButton = (Button)FindViewById(Resource.Id.postButton);
mDeleteButton = (Button)FindViewById(Resource.Id.deletePostButton);
mUploadButton = (Button)FindViewById(Resource.Id.uploadButton);
mFacebook = new Facebook(APP_ID);
mAsyncRunner = new AsyncFacebookRunner(mFacebook);
SessionStore.Restore(mFacebook, this);
SessionEvents.AddAuthListener(new SampleAuthListener(this));
SessionEvents.AddLogoutListener(new SampleLogoutListener(this));
mLoginButton.Init(this, mFacebook);
mRequestButton.Click += delegate {
mAsyncRunner.Request("me", new SampleRequestListener(this));
};
mRequestButton.Visibility = mFacebook.IsSessionValid ?
ViewStates.Visible :
ViewStates.Invisible;
mUploadButton.Click += async delegate {
Bundle parameters = new Bundle();
parameters.PutString("method", "photos.upload");
URL uploadFileUrl = null;
try {
uploadFileUrl = new URL(
"http://www.facebook.com/images/devsite/iphone_connect_btn.jpg");
} catch (MalformedURLException e) {
e.PrintStackTrace();
}
try {
HttpURLConnection conn = (HttpURLConnection)uploadFileUrl.OpenConnection();
conn.DoInput = true;
await conn.ConnectAsync();
int length = conn.ContentLength;
byte[] imgData = new byte[length];
var ins = conn.InputStream;
await ins.ReadAsync(imgData, 0, imgData.Length);
parameters.PutByteArray("picture", imgData);
} catch (IOException e) {
e.PrintStackTrace();
}
mAsyncRunner.Request(null, parameters, "POST",
new SampleUploadListener(this), null);
};
mUploadButton.Visibility = mFacebook.IsSessionValid ?
ViewStates.Visible :
ViewStates.Invisible;
mPostButton.Click += delegate {
mFacebook.Dialog(this, "feed",
new SampleDialogListener(this));
};
mPostButton.Visibility = mFacebook.IsSessionValid ?
ViewStates.Visible :
ViewStates.Invisible;
}
async Task <HttpResponseMessage> DoProcessRequest(HttpRequestMessage request, URL javaUrl, HttpURLConnection httpConnection, CancellationToken cancellationToken, RequestRedirectionState redirectState)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"{this}.DoProcessRequest ()");
}
if (cancellationToken.IsCancellationRequested)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, " cancelled");
}
cancellationToken.ThrowIfCancellationRequested();
}
CancellationTokenSource waitHandleSource = new CancellationTokenSource();
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connecting");
}
CancellationToken linkedToken = CancellationTokenSource.CreateLinkedTokenSource(waitHandleSource.Token, cancellationToken).Token;
await Task.WhenAny(
httpConnection.ConnectAsync(),
Task.Run(() => {
linkedToken.WaitHandle.WaitOne();
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Wait handle task finished");
}
}))
.ConfigureAwait(false);
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connected");
}
} catch (Java.Net.ConnectException ex) {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Connection exception {ex}");
}
// Wrap it nicely in a "standard" exception so that it's compatible with HttpClientHandler
throw new WebException(ex.Message, ex, WebExceptionStatus.ConnectFailure, null);
} finally{
//If not already cancelled, cancel the WaitOne through the waitHandleSource to prevent an orphaned thread
waitHandleSource.Cancel();
}
if (cancellationToken.IsCancellationRequested)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, " cancelled");
}
await DisconnectAsync(httpConnection).ConfigureAwait(continueOnCapturedContext: false);
cancellationToken.ThrowIfCancellationRequested();
}
CancellationTokenRegistration cancelRegistration = default(CancellationTokenRegistration);
HttpStatusCode statusCode = HttpStatusCode.OK;
Uri connectionUri = null;
try {
cancelRegistration = cancellationToken.Register(() => {
DisconnectAsync(httpConnection).ContinueWith(t => {
if (t.Exception != null)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Disconnection exception: {t.Exception}");
}
}, TaskScheduler.Default);
}, useSynchronizationContext: false);
if (httpConnection.DoOutput)
{
using (var stream = await request.Content.ReadAsStreamAsync().ConfigureAwait(false)) {
await stream.CopyToAsync(httpConnection.OutputStream, 4096, cancellationToken)
.ConfigureAwait(false);
}
}
statusCode = await Task.Run(() => (HttpStatusCode)httpConnection.ResponseCode).ConfigureAwait(false);
connectionUri = new Uri(httpConnection.URL.ToString());
} finally {
cancelRegistration.Dispose();
}
if (cancellationToken.IsCancellationRequested)
{
await DisconnectAsync(httpConnection).ConfigureAwait(continueOnCapturedContext: false);
cancellationToken.ThrowIfCancellationRequested();
}
// If the request was redirected we need to put the new URL in the request
request.RequestUri = connectionUri;
var ret = new AndroidHttpResponseMessage(javaUrl, httpConnection)
{
RequestMessage = request,
ReasonPhrase = httpConnection.ResponseMessage,
StatusCode = statusCode,
};
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Status code: {statusCode}");
}
bool disposeRet;
if (HandleRedirect(statusCode, httpConnection, redirectState, out disposeRet))
{
if (disposeRet)
{
ret.Dispose();
ret = null;
}
return(ret);
}
switch (statusCode)
{
case HttpStatusCode.Unauthorized:
case HttpStatusCode.ProxyAuthenticationRequired:
// We don't resend the request since that would require new set of credentials if the
// ones provided in Credentials are invalid (or null) and that, in turn, may require asking the
// user which is not something that should be taken care of by us and in this
// context. The application should be responsible for this.
// HttpClientHandler throws an exception in this instance, but I think it's not a good
// idea. We'll return the response message with all the information required by the
// application to fill in the blanks and provide the requested credentials instead.
//
// We return the body of the response too, but the Java client will throw
// a FileNotFound exception if we attempt to access the input stream.
// Instead we try to read the error stream and return an default message if the error stream isn't readable.
ret.Content = GetErrorContent(httpConnection, new StringContent("Unauthorized", Encoding.ASCII));
CopyHeaders(httpConnection, ret);
if (ret.Headers.WwwAuthenticate != null)
{
ProxyAuthenticationRequested = false;
CollectAuthInfo(ret.Headers.WwwAuthenticate);
}
else if (ret.Headers.ProxyAuthenticate != null)
{
ProxyAuthenticationRequested = true;
CollectAuthInfo(ret.Headers.ProxyAuthenticate);
}
ret.RequestedAuthentication = RequestedAuthentication;
return(ret);
}
if (!IsErrorStatusCode(statusCode))
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Reading...");
}
ret.Content = GetContent(httpConnection, httpConnection.InputStream);
}
else
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Status code is {statusCode}, reading...");
}
// For 400 >= response code <= 599 the Java client throws the FileNotFound exception when attempting to read from the input stream.
// Instead we try to read the error stream and return an empty string if the error stream isn't readable.
ret.Content = GetErrorContent(httpConnection, new StringContent(String.Empty, Encoding.ASCII));
}
CopyHeaders(httpConnection, ret);
IEnumerable <string> cookieHeaderValue;
if (!UseCookies || CookieContainer == null || !ret.Headers.TryGetValues("Set-Cookie", out cookieHeaderValue) || cookieHeaderValue == null)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"No cookies");
}
return(ret);
}
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Parsing cookies");
}
CookieContainer.SetCookies(connectionUri, String.Join(",", cookieHeaderValue));
} catch (Exception ex) {
// We don't want to terminate the response because of a bad cookie, hence just reporting
// the issue. We might consider adding a virtual method to let the user handle the
// issue, but not sure if it's really needed. Set-Cookie header will be part of the
// header collection so the user can always examine it if they spot an error.
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Failed to parse cookies in the server response. {ex.GetType ()}: {ex.Message}");
}
}
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Returning");
}
return(ret);
}
async Task <HttpResponseMessage> DoProcessRequest(HttpRequestMessage request, URL javaUrl, HttpURLConnection httpConnection, CancellationToken cancellationToken, RequestRedirectionState redirectState)
{
if (cancellationToken.IsCancellationRequested)
{
cancellationToken.ThrowIfCancellationRequested();
}
try
{
await Task.WhenAny(
httpConnection.ConnectAsync(),
Task.Run(() => { cancellationToken.WaitHandle.WaitOne(); }))
.ConfigureAwait(false);
}
catch (Java.Net.ConnectException ex)
{
// Wrap it nicely in a "standard" exception so that it's compatible with HttpClientHandler
throw new WebException(ex.Message, ex, WebExceptionStatus.ConnectFailure, null);
}
if (cancellationToken.IsCancellationRequested)
{
httpConnection.Disconnect();
cancellationToken.ThrowIfCancellationRequested();
}
cancellationToken.Register(httpConnection.Disconnect);
if (httpConnection.DoOutput)
{
using (var stream = await request.Content.ReadAsStreamAsync())
{
await stream.CopyToAsync(httpConnection.OutputStream, 4096, cancellationToken)
.ConfigureAwait(false);
}
}
if (cancellationToken.IsCancellationRequested)
{
httpConnection.Disconnect();
cancellationToken.ThrowIfCancellationRequested();
}
var statusCode = await Task.Run(() => (HttpStatusCode)httpConnection.ResponseCode).ConfigureAwait(false);
var connectionUri = new Uri(httpConnection.URL.ToString());
// If the request was redirected we need to put the new URL in the request
request.RequestUri = connectionUri;
var ret = new AndroidHttpResponseMessage(javaUrl, httpConnection)
{
RequestMessage = request,
ReasonPhrase = httpConnection.ResponseMessage,
StatusCode = statusCode,
};
bool disposeRet;
if (HandleRedirect(statusCode, httpConnection, redirectState, out disposeRet))
{
if (disposeRet)
{
ret.Dispose();
ret = null;
}
return(ret);
}
switch (statusCode)
{
case HttpStatusCode.Unauthorized:
case HttpStatusCode.ProxyAuthenticationRequired:
// We don't resend the request since that would require new set of credentials if the
// ones provided in Credentials are invalid (or null) and that, in turn, may require asking the
// user which is not something that should be taken care of by us and in this
// context. The application should be responsible for this.
// HttpClientHandler throws an exception in this instance, but I think it's not a good
// idea. We'll return the response message with all the information required by the
// application to fill in the blanks and provide the requested credentials instead.
//
// We return the body of the response too, but the Java client will throw
// a FileNotFound exception if we attempt to access the input stream.
// Instead we try to read the error stream and return an default message if the error stream isn't readable.
ret.Content = GetErrorContent(httpConnection, new StringContent("Unauthorized", Encoding.ASCII));
CopyHeaders(httpConnection, ret);
if (ret.Headers.WwwAuthenticate != null)
{
ProxyAuthenticationRequested = false;
CollectAuthInfo(ret.Headers.WwwAuthenticate);
}
else if (ret.Headers.ProxyAuthenticate != null)
{
ProxyAuthenticationRequested = true;
CollectAuthInfo(ret.Headers.ProxyAuthenticate);
}
// COMMENTED OUT: Kyle
//ret.RequestedAuthentication = RequestedAuthentication;
return(ret);
}
if (!IsErrorStatusCode(statusCode))
{
ret.Content = GetContent(httpConnection, httpConnection.InputStream);
}
else
{
// For 400 >= response code <= 599 the Java client throws the FileNotFound exception when attempting to read from the input stream.
// Instead we try to read the error stream and return an empty string if the error stream isn't readable.
ret.Content = GetErrorContent(httpConnection, new StringContent(String.Empty, Encoding.ASCII));
}
CopyHeaders(httpConnection, ret);
IEnumerable <string> cookieHeaderValue;
if (!UseCookies || CookieContainer == null || !ret.Headers.TryGetValues("Set-Cookie", out cookieHeaderValue) || cookieHeaderValue == null)
{
return(ret);
}
try
{
CookieContainer.SetCookies(connectionUri, String.Join(",", cookieHeaderValue));
}
catch (Exception ex)
{
// We don't want to terminate the response because of a bad cookie, hence just reporting
// the issue. We might consider adding a virtual method to let the user handle the
// issue, but not sure if it's really needed. Set-Cookie header will be part of the
// header collection so the user can always examine it if they spot an error.
}
return(ret);
}