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();
}
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connecting");
}
await ConnectAsync(httpConnection, cancellationToken).ConfigureAwait(continueOnCapturedContext: 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 (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)
{
await WriteRequestContentToOutput(request, httpConnection, cancellationToken);
}
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}");
}
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));
}
bool disposeRet;
if (HandleRedirect(statusCode, httpConnection, redirectState, out disposeRet))
{
if (redirectState.MethodChanged)
{
// If a redirect uses GET but the original request used POST with content, then the redirected
// request will fail with an exception.
// There's also no way to send content using GET (except in the URL, of course), so discarding
// request.Content is what we should do.
//
// See https://github.com/xamarin/xamarin-android/issues/1282
if (redirectState.Method == HttpMethod.Get)
{
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $"Discarding content on redirect");
}
request.Content = null;
}
}
if (disposeRet)
{
ret.Dispose();
ret = null;
}
else
{
CopyHeaders(httpConnection, ret);
ParseCookies(ret, connectionUri);
}
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);
}
CopyHeaders(httpConnection, ret);
ParseCookies(ret, connectionUri);
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 (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();
}
try {
if (Logger.LogNet)
{
Logger.Log(LogLevel.Info, LOG_APP, $" connecting");
}
await ConnectAsync(httpConnection, cancellationToken).ConfigureAwait(continueOnCapturedContext: 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 (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 (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}");
}
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 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);
}
