mirror of
https://github.com/dart-lang/sdk
synced 2024-09-22 14:33:32 +00:00
4740a77b0e
The Host header was not set correctly for HTTP requests when an IPv6 address was used. The square brackets surrounding the address was missing. BUG=http://dartbug.com/21698 R=lrn@google.com Review URL: https://codereview.chromium.org//755883007 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@41980 260f80e4-7a28-3924-810f-c04153c831b5
2823 lines
90 KiB
Dart
2823 lines
90 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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part of dart.io;
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const int _OUTGOING_BUFFER_SIZE = 8 * 1024;
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class _HttpIncoming extends Stream<List<int>> {
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final int _transferLength;
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final Completer _dataCompleter = new Completer();
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Stream<List<int>> _stream;
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bool fullBodyRead = false;
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// Common properties.
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final _HttpHeaders headers;
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bool upgraded = false;
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// ClientResponse properties.
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int statusCode;
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String reasonPhrase;
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// Request properties.
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String method;
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Uri uri;
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bool hasSubscriber = false;
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// The transfer length if the length of the message body as it
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// appears in the message (RFC 2616 section 4.4). This can be -1 if
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// the length of the massage body is not known due to transfer
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// codings.
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int get transferLength => _transferLength;
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_HttpIncoming(this.headers, this._transferLength, this._stream);
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StreamSubscription<List<int>> listen(void onData(List<int> event),
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{Function onError,
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void onDone(),
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bool cancelOnError}) {
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hasSubscriber = true;
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return _stream
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.handleError((error) {
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throw new HttpException(error.message, uri: uri);
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})
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.listen(onData,
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onError: onError,
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onDone: onDone,
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cancelOnError: cancelOnError);
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}
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// Is completed once all data have been received.
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Future get dataDone => _dataCompleter.future;
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void close(bool closing) {
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fullBodyRead = true;
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hasSubscriber = true;
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_dataCompleter.complete(closing);
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}
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}
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abstract class _HttpInboundMessage extends Stream<List<int>> {
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final _HttpIncoming _incoming;
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List<Cookie> _cookies;
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_HttpInboundMessage(this._incoming);
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List<Cookie> get cookies {
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if (_cookies != null) return _cookies;
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return _cookies = headers._parseCookies();
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}
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_HttpHeaders get headers => _incoming.headers;
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String get protocolVersion => headers.protocolVersion;
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int get contentLength => headers.contentLength;
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bool get persistentConnection => headers.persistentConnection;
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}
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class _HttpRequest extends _HttpInboundMessage implements HttpRequest {
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final HttpResponse response;
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final _HttpServer _httpServer;
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final _HttpConnection _httpConnection;
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_HttpSession _session;
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Uri _requestedUri;
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_HttpRequest(this.response, _HttpIncoming _incoming, this._httpServer,
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this._httpConnection) : super(_incoming) {
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if (headers.protocolVersion == "1.1") {
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response.headers
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..chunkedTransferEncoding = true
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..persistentConnection = headers.persistentConnection;
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}
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if (_httpServer._sessionManagerInstance != null) {
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// Map to session if exists.
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var sessionIds = cookies
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.where((cookie) => cookie.name.toUpperCase() == _DART_SESSION_ID)
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.map((cookie) => cookie.value);
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for (var sessionId in sessionIds) {
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_session = _httpServer._sessionManager.getSession(sessionId);
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if (_session != null) {
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_session._markSeen();
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break;
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}
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}
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}
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}
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StreamSubscription<List<int>> listen(void onData(List<int> event),
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{Function onError,
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void onDone(),
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bool cancelOnError}) {
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return _incoming.listen(onData,
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onError: onError,
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onDone: onDone,
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cancelOnError: cancelOnError);
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}
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Uri get uri => _incoming.uri;
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Uri get requestedUri {
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if (_requestedUri == null) {
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var proto = headers['x-forwarded-proto'];
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var scheme = proto != null ? proto.first :
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_httpConnection._socket is SecureSocket ? "https" : "http";
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var host = headers['x-forwarded-host'];
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if (host != null) {
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host = host.first;
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} else {
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host = headers['host'];
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if (host != null) {
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host = host.first;
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} else {
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host = "${_httpServer.address.host}:${_httpServer.port}";
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}
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}
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_requestedUri = Uri.parse("$scheme://$host$uri");
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}
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return _requestedUri;
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}
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String get method => _incoming.method;
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HttpSession get session {
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if (_session != null) {
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if (_session._destroyed) {
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// It's destroyed, clear it.
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_session = null;
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// Create new session object by calling recursive.
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return session;
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}
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// It's already mapped, use it.
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return _session;
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}
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// Create session, store it in connection, and return.
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return _session = _httpServer._sessionManager.createSession();
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}
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HttpConnectionInfo get connectionInfo => _httpConnection.connectionInfo;
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X509Certificate get certificate {
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var socket = _httpConnection._socket;
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if (socket is SecureSocket) return socket.peerCertificate;
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return null;
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}
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}
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class _HttpClientResponse
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extends _HttpInboundMessage implements HttpClientResponse {
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List<RedirectInfo> get redirects => _httpRequest._responseRedirects;
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// The HttpClient this response belongs to.
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final _HttpClient _httpClient;
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// The HttpClientRequest of this response.
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final _HttpClientRequest _httpRequest;
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List<Cookie> _cookies;
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_HttpClientResponse(_HttpIncoming _incoming, this._httpRequest,
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this._httpClient) : super(_incoming) {
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// Set uri for potential exceptions.
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_incoming.uri = _httpRequest.uri;
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}
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int get statusCode => _incoming.statusCode;
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String get reasonPhrase => _incoming.reasonPhrase;
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X509Certificate get certificate {
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// The peerCertificate isn't on a plain socket, so cast to dynamic.
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var socket = _httpRequest._httpClientConnection._socket;
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return socket.peerCertificate;
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}
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List<Cookie> get cookies {
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if (_cookies != null) return _cookies;
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_cookies = new List<Cookie>();
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List<String> values = headers[HttpHeaders.SET_COOKIE];
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if (values != null) {
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values.forEach((value) {
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_cookies.add(new Cookie.fromSetCookieValue(value));
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});
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}
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return _cookies;
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}
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bool get isRedirect {
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if (_httpRequest.method == "GET" || _httpRequest.method == "HEAD") {
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return statusCode == HttpStatus.MOVED_PERMANENTLY ||
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statusCode == HttpStatus.FOUND ||
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statusCode == HttpStatus.SEE_OTHER ||
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statusCode == HttpStatus.TEMPORARY_REDIRECT;
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} else if (_httpRequest.method == "POST") {
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return statusCode == HttpStatus.SEE_OTHER;
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}
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return false;
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}
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Future<HttpClientResponse> redirect([String method,
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Uri url,
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bool followLoops]) {
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if (method == null) {
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// Set method as defined by RFC 2616 section 10.3.4.
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if (statusCode == HttpStatus.SEE_OTHER && _httpRequest.method == "POST") {
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method = "GET";
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} else {
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method = _httpRequest.method;
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}
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}
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if (url == null) {
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String location = headers.value(HttpHeaders.LOCATION);
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if (location == null) {
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throw new StateError("Response has no Location header for redirect");
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}
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url = Uri.parse(location);
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}
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if (followLoops != true) {
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for (var redirect in redirects) {
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if (redirect.location == url) {
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return new Future.error(
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new RedirectException("Redirect loop detected", redirects));
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}
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}
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}
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return _httpClient._openUrlFromRequest(method, url, _httpRequest)
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.then((request) {
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request._responseRedirects
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..addAll(this.redirects)
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..add(new _RedirectInfo(statusCode, method, url));
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return request.close();
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});
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}
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StreamSubscription<List<int>> listen(void onData(List<int> event),
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{Function onError,
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void onDone(),
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bool cancelOnError}) {
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if (_incoming.upgraded) {
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// If upgraded, the connection is already 'removed' form the client.
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// Since listening to upgraded data is 'bogus', simply close and
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// return empty stream subscription.
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_httpRequest._httpClientConnection.destroy();
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return new Stream.fromIterable([]).listen(null, onDone: onDone);
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}
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var stream = _incoming;
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if (_httpClient.autoUncompress &&
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headers.value(HttpHeaders.CONTENT_ENCODING) == "gzip") {
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stream = stream.transform(GZIP.decoder);
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}
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return stream.listen(onData,
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onError: onError,
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onDone: onDone,
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cancelOnError: cancelOnError);
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}
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Future<Socket> detachSocket() {
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_httpClient._connectionClosed(_httpRequest._httpClientConnection);
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return _httpRequest._httpClientConnection.detachSocket();
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}
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HttpConnectionInfo get connectionInfo => _httpRequest.connectionInfo;
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bool get _shouldAuthenticateProxy {
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// Only try to authenticate if there is a challenge in the response.
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List<String> challenge = headers[HttpHeaders.PROXY_AUTHENTICATE];
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return statusCode == HttpStatus.PROXY_AUTHENTICATION_REQUIRED &&
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challenge != null && challenge.length == 1;
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}
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bool get _shouldAuthenticate {
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// Only try to authenticate if there is a challenge in the response.
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List<String> challenge = headers[HttpHeaders.WWW_AUTHENTICATE];
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return statusCode == HttpStatus.UNAUTHORIZED &&
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challenge != null && challenge.length == 1;
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}
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Future<HttpClientResponse> _authenticate(bool proxyAuth) {
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Future<HttpClientResponse> retry() {
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// Drain body and retry.
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return drain().then((_) {
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return _httpClient._openUrlFromRequest(_httpRequest.method,
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_httpRequest.uri,
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_httpRequest)
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.then((request) => request.close());
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});
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}
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List<String> authChallenge() {
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return proxyAuth ? headers[HttpHeaders.PROXY_AUTHENTICATE]
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: headers[HttpHeaders.WWW_AUTHENTICATE];
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}
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_Credentials findCredentials(_AuthenticationScheme scheme) {
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return proxyAuth ? _httpClient._findProxyCredentials(_httpRequest._proxy,
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scheme)
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: _httpClient._findCredentials(_httpRequest.uri, scheme);
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}
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void removeCredentials(_Credentials cr) {
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if (proxyAuth) {
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_httpClient._removeProxyCredentials(cr);
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} else {
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_httpClient._removeCredentials(cr);
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}
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}
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Future requestAuthentication(_AuthenticationScheme scheme, String realm) {
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if (proxyAuth) {
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if (_httpClient._authenticateProxy == null) {
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return new Future.value(false);
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}
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var proxy = _httpRequest._proxy;
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return _httpClient._authenticateProxy(proxy.host,
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proxy.port,
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scheme.toString(),
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realm);
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} else {
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if (_httpClient._authenticate == null) {
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return new Future.value(false);
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}
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return _httpClient._authenticate(_httpRequest.uri,
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scheme.toString(),
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realm);
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}
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}
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List<String> challenge = authChallenge();
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assert(challenge != null || challenge.length == 1);
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_HeaderValue header =
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_HeaderValue.parse(challenge[0], parameterSeparator: ",");
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_AuthenticationScheme scheme =
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new _AuthenticationScheme.fromString(header.value);
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String realm = header.parameters["realm"];
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// See if any matching credentials are available.
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_Credentials cr = findCredentials(scheme);
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if (cr != null) {
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// For basic authentication don't retry already used credentials
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// as they must have already been added to the request causing
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// this authenticate response.
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if (cr.scheme == _AuthenticationScheme.BASIC && !cr.used) {
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// Credentials where found, prepare for retrying the request.
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return retry();
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}
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// Digest authentication only supports the MD5 algorithm.
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if (cr.scheme == _AuthenticationScheme.DIGEST &&
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(header.parameters["algorithm"] == null ||
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header.parameters["algorithm"].toLowerCase() == "md5")) {
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if (cr.nonce == null || cr.nonce == header.parameters["nonce"]) {
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// If the nonce is not set then this is the first authenticate
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// response for these credentials. Set up authentication state.
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if (cr.nonce == null) {
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cr..nonce = header.parameters["nonce"]
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..algorithm = "MD5"
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..qop = header.parameters["qop"]
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..nonceCount = 0;
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}
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// Credentials where found, prepare for retrying the request.
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return retry();
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} else if (header.parameters["stale"] != null &&
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header.parameters["stale"].toLowerCase() == "true") {
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// If stale is true retry with new nonce.
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cr.nonce = header.parameters["nonce"];
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// Credentials where found, prepare for retrying the request.
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return retry();
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}
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}
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}
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// Ask for more credentials if none found or the one found has
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// already been used. If it has already been used it must now be
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// invalid and is removed.
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if (cr != null) {
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removeCredentials(cr);
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cr = null;
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}
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return requestAuthentication(scheme, realm).then((credsAvailable) {
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if (credsAvailable) {
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cr = _httpClient._findCredentials(_httpRequest.uri, scheme);
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return retry();
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} else {
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// No credentials available, complete with original response.
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return this;
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}
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});
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}
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}
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abstract class _HttpOutboundMessage<T> extends _IOSinkImpl {
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// Used to mark when the body should be written. This is used for HEAD
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// requests and in error handling.
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bool _encodingSet = false;
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bool _bufferOutput = true;
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final Uri _uri;
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final _HttpOutgoing _outgoing;
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final _HttpHeaders headers;
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_HttpOutboundMessage(Uri uri,
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String protocolVersion,
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_HttpOutgoing outgoing,
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{_HttpHeaders initialHeaders})
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: super(outgoing, null),
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_uri = uri,
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headers = new _HttpHeaders(
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protocolVersion,
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defaultPortForScheme: uri.scheme == 'https' ?
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HttpClient.DEFAULT_HTTPS_PORT :
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HttpClient.DEFAULT_HTTP_PORT,
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initialHeaders: initialHeaders),
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_outgoing = outgoing {
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_outgoing.outbound = this;
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_encodingMutable = false;
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}
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int get contentLength => headers.contentLength;
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void set contentLength(int contentLength) {
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headers.contentLength = contentLength;
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}
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bool get persistentConnection => headers.persistentConnection;
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void set persistentConnection(bool p) {
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headers.persistentConnection = p;
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}
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bool get bufferOutput => _bufferOutput;
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void set bufferOutput(bool bufferOutput) {
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if (_outgoing.headersWritten) throw new StateError("Header already sent");
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_bufferOutput = bufferOutput;
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}
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Encoding get encoding {
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if (_encodingSet && _outgoing.headersWritten) {
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return _encoding;
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}
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var charset;
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if (headers.contentType != null && headers.contentType.charset != null) {
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charset = headers.contentType.charset;
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} else {
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charset = "iso-8859-1";
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}
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return Encoding.getByName(charset);
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}
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void add(List<int> data) {
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if (data.length == 0) return;
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super.add(data);
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}
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void write(Object obj) {
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if (!_encodingSet) {
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_encoding = encoding;
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_encodingSet = true;
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}
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super.write(obj);
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}
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void _writeHeader();
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bool get _isConnectionClosed => false;
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}
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class _HttpResponse extends _HttpOutboundMessage<HttpResponse>
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implements HttpResponse {
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int _statusCode = 200;
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String _reasonPhrase;
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List<Cookie> _cookies;
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_HttpRequest _httpRequest;
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Duration _deadline;
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Timer _deadlineTimer;
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_HttpResponse(Uri uri,
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String protocolVersion,
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_HttpOutgoing outgoing,
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HttpHeaders defaultHeaders,
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String serverHeader)
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: super(uri, protocolVersion, outgoing, initialHeaders: defaultHeaders) {
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if (serverHeader != null) headers.set('server', serverHeader);
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}
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bool get _isConnectionClosed => _httpRequest._httpConnection._isClosing;
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List<Cookie> get cookies {
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if (_cookies == null) _cookies = new List<Cookie>();
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return _cookies;
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}
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int get statusCode => _statusCode;
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void set statusCode(int statusCode) {
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if (_outgoing.headersWritten) throw new StateError("Header already sent");
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_statusCode = statusCode;
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}
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String get reasonPhrase => _findReasonPhrase(statusCode);
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void set reasonPhrase(String reasonPhrase) {
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if (_outgoing.headersWritten) throw new StateError("Header already sent");
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_reasonPhrase = reasonPhrase;
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}
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Future redirect(Uri location, {int status: HttpStatus.MOVED_TEMPORARILY}) {
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if (_outgoing.headersWritten) throw new StateError("Header already sent");
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statusCode = status;
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headers.set("location", location.toString());
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return close();
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}
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Future<Socket> detachSocket({bool writeHeaders: true}) {
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if (_outgoing.headersWritten) throw new StateError("Headers already sent");
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deadline = null; // Be sure to stop any deadline.
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var future = _httpRequest._httpConnection.detachSocket();
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if (writeHeaders) {
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var headersFuture = _outgoing.writeHeaders(drainRequest: false,
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setOutgoing: false);
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assert(headersFuture == null);
|
|
} else {
|
|
// Imitate having written the headers.
|
|
_outgoing.headersWritten = true;
|
|
}
|
|
// Close connection so the socket is 'free'.
|
|
close();
|
|
done.catchError((_) {
|
|
// Catch any error on done, as they automatically will be
|
|
// propagated to the websocket.
|
|
});
|
|
return future;
|
|
}
|
|
|
|
HttpConnectionInfo get connectionInfo => _httpRequest.connectionInfo;
|
|
|
|
Duration get deadline => _deadline;
|
|
|
|
void set deadline(Duration d) {
|
|
if (_deadlineTimer != null) _deadlineTimer.cancel();
|
|
_deadline = d;
|
|
|
|
if (_deadline == null) return;
|
|
_deadlineTimer = new Timer(_deadline, () {
|
|
_httpRequest._httpConnection.destroy();
|
|
});
|
|
}
|
|
|
|
void _writeHeader() {
|
|
Uint8List buffer = new Uint8List(_OUTGOING_BUFFER_SIZE);
|
|
int offset = 0;
|
|
|
|
void write(List<int> bytes) {
|
|
int len = bytes.length;
|
|
for (int i = 0; i < len; i++) {
|
|
buffer[offset + i] = bytes[i];
|
|
}
|
|
offset += len;
|
|
}
|
|
|
|
// Write status line.
|
|
if (headers.protocolVersion == "1.1") {
|
|
write(_Const.HTTP11);
|
|
} else {
|
|
write(_Const.HTTP10);
|
|
}
|
|
buffer[offset++] = _CharCode.SP;
|
|
write(statusCode.toString().codeUnits);
|
|
buffer[offset++] = _CharCode.SP;
|
|
write(reasonPhrase.codeUnits);
|
|
buffer[offset++] = _CharCode.CR;
|
|
buffer[offset++] = _CharCode.LF;
|
|
|
|
var session = _httpRequest._session;
|
|
if (session != null && !session._destroyed) {
|
|
// Mark as not new.
|
|
session._isNew = false;
|
|
// Make sure we only send the current session id.
|
|
bool found = false;
|
|
for (int i = 0; i < cookies.length; i++) {
|
|
if (cookies[i].name.toUpperCase() == _DART_SESSION_ID) {
|
|
cookies[i]
|
|
..value = session.id
|
|
..httpOnly = true
|
|
..path = "/";
|
|
found = true;
|
|
}
|
|
}
|
|
if (!found) {
|
|
var cookie = new Cookie(_DART_SESSION_ID, session.id);
|
|
cookies.add(cookie
|
|
..httpOnly = true
|
|
..path = "/");
|
|
}
|
|
}
|
|
// Add all the cookies set to the headers.
|
|
if (_cookies != null) {
|
|
_cookies.forEach((cookie) {
|
|
headers.add(HttpHeaders.SET_COOKIE, cookie);
|
|
});
|
|
}
|
|
|
|
headers._finalize();
|
|
|
|
// Write headers.
|
|
offset = headers._write(buffer, offset);
|
|
buffer[offset++] = _CharCode.CR;
|
|
buffer[offset++] = _CharCode.LF;
|
|
_outgoing.setHeader(buffer, offset);
|
|
}
|
|
|
|
String _findReasonPhrase(int statusCode) {
|
|
if (_reasonPhrase != null) {
|
|
return _reasonPhrase;
|
|
}
|
|
|
|
switch (statusCode) {
|
|
case HttpStatus.CONTINUE: return "Continue";
|
|
case HttpStatus.SWITCHING_PROTOCOLS: return "Switching Protocols";
|
|
case HttpStatus.OK: return "OK";
|
|
case HttpStatus.CREATED: return "Created";
|
|
case HttpStatus.ACCEPTED: return "Accepted";
|
|
case HttpStatus.NON_AUTHORITATIVE_INFORMATION:
|
|
return "Non-Authoritative Information";
|
|
case HttpStatus.NO_CONTENT: return "No Content";
|
|
case HttpStatus.RESET_CONTENT: return "Reset Content";
|
|
case HttpStatus.PARTIAL_CONTENT: return "Partial Content";
|
|
case HttpStatus.MULTIPLE_CHOICES: return "Multiple Choices";
|
|
case HttpStatus.MOVED_PERMANENTLY: return "Moved Permanently";
|
|
case HttpStatus.FOUND: return "Found";
|
|
case HttpStatus.SEE_OTHER: return "See Other";
|
|
case HttpStatus.NOT_MODIFIED: return "Not Modified";
|
|
case HttpStatus.USE_PROXY: return "Use Proxy";
|
|
case HttpStatus.TEMPORARY_REDIRECT: return "Temporary Redirect";
|
|
case HttpStatus.BAD_REQUEST: return "Bad Request";
|
|
case HttpStatus.UNAUTHORIZED: return "Unauthorized";
|
|
case HttpStatus.PAYMENT_REQUIRED: return "Payment Required";
|
|
case HttpStatus.FORBIDDEN: return "Forbidden";
|
|
case HttpStatus.NOT_FOUND: return "Not Found";
|
|
case HttpStatus.METHOD_NOT_ALLOWED: return "Method Not Allowed";
|
|
case HttpStatus.NOT_ACCEPTABLE: return "Not Acceptable";
|
|
case HttpStatus.PROXY_AUTHENTICATION_REQUIRED:
|
|
return "Proxy Authentication Required";
|
|
case HttpStatus.REQUEST_TIMEOUT: return "Request Time-out";
|
|
case HttpStatus.CONFLICT: return "Conflict";
|
|
case HttpStatus.GONE: return "Gone";
|
|
case HttpStatus.LENGTH_REQUIRED: return "Length Required";
|
|
case HttpStatus.PRECONDITION_FAILED: return "Precondition Failed";
|
|
case HttpStatus.REQUEST_ENTITY_TOO_LARGE:
|
|
return "Request Entity Too Large";
|
|
case HttpStatus.REQUEST_URI_TOO_LONG: return "Request-URI Too Large";
|
|
case HttpStatus.UNSUPPORTED_MEDIA_TYPE: return "Unsupported Media Type";
|
|
case HttpStatus.REQUESTED_RANGE_NOT_SATISFIABLE:
|
|
return "Requested range not satisfiable";
|
|
case HttpStatus.EXPECTATION_FAILED: return "Expectation Failed";
|
|
case HttpStatus.INTERNAL_SERVER_ERROR: return "Internal Server Error";
|
|
case HttpStatus.NOT_IMPLEMENTED: return "Not Implemented";
|
|
case HttpStatus.BAD_GATEWAY: return "Bad Gateway";
|
|
case HttpStatus.SERVICE_UNAVAILABLE: return "Service Unavailable";
|
|
case HttpStatus.GATEWAY_TIMEOUT: return "Gateway Time-out";
|
|
case HttpStatus.HTTP_VERSION_NOT_SUPPORTED:
|
|
return "Http Version not supported";
|
|
default: return "Status $statusCode";
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
class _HttpClientRequest extends _HttpOutboundMessage<HttpClientResponse>
|
|
implements HttpClientRequest {
|
|
final String method;
|
|
final Uri uri;
|
|
final List<Cookie> cookies = new List<Cookie>();
|
|
|
|
// The HttpClient this request belongs to.
|
|
final _HttpClient _httpClient;
|
|
final _HttpClientConnection _httpClientConnection;
|
|
|
|
final Completer<HttpClientResponse> _responseCompleter
|
|
= new Completer<HttpClientResponse>();
|
|
|
|
final _Proxy _proxy;
|
|
|
|
Future<HttpClientResponse> _response;
|
|
|
|
// TODO(ajohnsen): Get default value from client?
|
|
bool _followRedirects = true;
|
|
|
|
int _maxRedirects = 5;
|
|
|
|
List<RedirectInfo> _responseRedirects = [];
|
|
|
|
_HttpClientRequest(_HttpOutgoing outgoing, Uri uri, this.method, this._proxy,
|
|
this._httpClient, this._httpClientConnection)
|
|
: super(uri, "1.1", outgoing),
|
|
uri = uri {
|
|
// GET and HEAD have 'content-length: 0' by default.
|
|
if (method == "GET" || method == "HEAD") {
|
|
contentLength = 0;
|
|
} else {
|
|
headers.chunkedTransferEncoding = true;
|
|
}
|
|
}
|
|
|
|
Future<HttpClientResponse> get done {
|
|
if (_response == null) {
|
|
_response = Future.wait([_responseCompleter.future, super.done],
|
|
eagerError: true)
|
|
.then((list) => list[0]);
|
|
}
|
|
return _response;
|
|
}
|
|
|
|
Future<HttpClientResponse> close() {
|
|
super.close();
|
|
return done;
|
|
}
|
|
|
|
int get maxRedirects => _maxRedirects;
|
|
void set maxRedirects(int maxRedirects) {
|
|
if (_outgoing.headersWritten) throw new StateError("Request already sent");
|
|
_maxRedirects = maxRedirects;
|
|
}
|
|
|
|
bool get followRedirects => _followRedirects;
|
|
void set followRedirects(bool followRedirects) {
|
|
if (_outgoing.headersWritten) throw new StateError("Request already sent");
|
|
_followRedirects = followRedirects;
|
|
}
|
|
|
|
HttpConnectionInfo get connectionInfo => _httpClientConnection.connectionInfo;
|
|
|
|
void _onIncoming(_HttpIncoming incoming) {
|
|
var response = new _HttpClientResponse(incoming, this, _httpClient);
|
|
Future<HttpClientResponse> future;
|
|
if (followRedirects && response.isRedirect) {
|
|
if (response.redirects.length < maxRedirects) {
|
|
// Redirect and drain response.
|
|
future = response.drain().then((_) => response.redirect());
|
|
} else {
|
|
// End with exception, too many redirects.
|
|
future = response.drain()
|
|
.then((_) => new Future.error(
|
|
new RedirectException("Redirect limit exceeded",
|
|
response.redirects)));
|
|
}
|
|
} else if (response._shouldAuthenticateProxy) {
|
|
future = response._authenticate(true);
|
|
} else if (response._shouldAuthenticate) {
|
|
future = response._authenticate(false);
|
|
} else {
|
|
future = new Future<HttpClientResponse>.value(response);
|
|
}
|
|
future.then(
|
|
(v) => _responseCompleter.complete(v),
|
|
onError: _responseCompleter.completeError);
|
|
}
|
|
|
|
void _onError(error, StackTrace stackTrace) {
|
|
_responseCompleter.completeError(error, stackTrace);
|
|
}
|
|
|
|
// Generate the request URI based on the method and proxy.
|
|
String _requestUri() {
|
|
// Generate the request URI starting from the path component.
|
|
String uriStartingFromPath() {
|
|
String result = uri.path;
|
|
if (result.length == 0) result = "/";
|
|
if (uri.query != "") {
|
|
if (uri.fragment != "") {
|
|
result = "${result}?${uri.query}#${uri.fragment}";
|
|
} else {
|
|
result = "${result}?${uri.query}";
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
if (_proxy.isDirect) {
|
|
return uriStartingFromPath();
|
|
} else {
|
|
if (method == "CONNECT") {
|
|
// For the connect method the request URI is the host:port of
|
|
// the requested destination of the tunnel (see RFC 2817
|
|
// section 5.2)
|
|
return "${uri.host}:${uri.port}";
|
|
} else {
|
|
if (_httpClientConnection._proxyTunnel) {
|
|
return uriStartingFromPath();
|
|
} else {
|
|
return uri.toString();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void _writeHeader() {
|
|
Uint8List buffer = new Uint8List(_OUTGOING_BUFFER_SIZE);
|
|
int offset = 0;
|
|
|
|
void write(List<int> bytes) {
|
|
int len = bytes.length;
|
|
for (int i = 0; i < len; i++) {
|
|
buffer[offset + i] = bytes[i];
|
|
}
|
|
offset += len;
|
|
}
|
|
|
|
// Write the request method.
|
|
write(method.codeUnits);
|
|
buffer[offset++] = _CharCode.SP;
|
|
// Write the request URI.
|
|
write(_requestUri().codeUnits);
|
|
buffer[offset++] = _CharCode.SP;
|
|
// Write HTTP/1.1.
|
|
write(_Const.HTTP11);
|
|
buffer[offset++] = _CharCode.CR;
|
|
buffer[offset++] = _CharCode.LF;
|
|
|
|
// Add the cookies to the headers.
|
|
if (!cookies.isEmpty) {
|
|
StringBuffer sb = new StringBuffer();
|
|
for (int i = 0; i < cookies.length; i++) {
|
|
if (i > 0) sb.write("; ");
|
|
sb..write(cookies[i].name)..write("=")..write(cookies[i].value);
|
|
}
|
|
headers.add(HttpHeaders.COOKIE, sb.toString());
|
|
}
|
|
|
|
headers._finalize();
|
|
|
|
// Write headers.
|
|
offset = headers._write(buffer, offset);
|
|
buffer[offset++] = _CharCode.CR;
|
|
buffer[offset++] = _CharCode.LF;
|
|
_outgoing.setHeader(buffer, offset);
|
|
}
|
|
}
|
|
|
|
// Used by _HttpOutgoing as a target of a chunked converter for gzip
|
|
// compression.
|
|
class _HttpGZipSink extends ByteConversionSink {
|
|
final Function _consume;
|
|
_HttpGZipSink(this._consume);
|
|
|
|
void add(List<int> chunk) {
|
|
_consume(chunk);
|
|
}
|
|
|
|
void addSlice(Uint8List chunk, int start, int end, bool isLast) {
|
|
_consume(new Uint8List.view(chunk.buffer, start, end - start));
|
|
}
|
|
|
|
void close() {}
|
|
}
|
|
|
|
|
|
// The _HttpOutgoing handles all of the following:
|
|
// - Buffering
|
|
// - GZip compressionm
|
|
// - Content-Length validation.
|
|
// - Errors.
|
|
//
|
|
// Most notable is the GZip compression, that uses a double-buffering system,
|
|
// one before gzip (_gzipBuffer) and one after (_buffer).
|
|
class _HttpOutgoing implements StreamConsumer<List<int>> {
|
|
static const List<int> _footerAndChunk0Length =
|
|
const [_CharCode.CR, _CharCode.LF, 0x30, _CharCode.CR, _CharCode.LF,
|
|
_CharCode.CR, _CharCode.LF];
|
|
|
|
static const List<int> _chunk0Length =
|
|
const [0x30, _CharCode.CR, _CharCode.LF, _CharCode.CR, _CharCode.LF];
|
|
|
|
final Completer _doneCompleter = new Completer();
|
|
final Socket socket;
|
|
|
|
bool ignoreBody = false;
|
|
bool headersWritten = false;
|
|
|
|
Uint8List _buffer;
|
|
int _length = 0;
|
|
|
|
Future _closeFuture;
|
|
|
|
bool chunked = false;
|
|
int _pendingChunkedFooter = 0;
|
|
|
|
int contentLength;
|
|
int _bytesWritten = 0;
|
|
|
|
bool _gzip = false;
|
|
ByteConversionSink _gzipSink;
|
|
// _gzipAdd is set iff the sink is being added to. It's used to specify where
|
|
// gzipped data should be taken (sometimes a controller, sometimes a socket).
|
|
Function _gzipAdd;
|
|
Uint8List _gzipBuffer;
|
|
int _gzipBufferLength = 0;
|
|
|
|
bool _socketError = false;
|
|
|
|
_HttpOutboundMessage outbound;
|
|
|
|
_HttpOutgoing(this.socket);
|
|
|
|
// Returns either a future or 'null', if it was able to write headers
|
|
// immediately.
|
|
Future writeHeaders({bool drainRequest: true, bool setOutgoing: true}) {
|
|
Future write() {
|
|
try {
|
|
outbound._writeHeader();
|
|
} catch (_) {
|
|
// Headers too large.
|
|
return new Future.error(new HttpException(
|
|
"Headers size exceeded the of '$_OUTGOING_BUFFER_SIZE'"
|
|
" bytes"));
|
|
}
|
|
}
|
|
if (headersWritten) return null;
|
|
headersWritten = true;
|
|
Future drainFuture;
|
|
bool isServerSide = outbound is _HttpResponse;
|
|
bool gzip = false;
|
|
if (isServerSide) {
|
|
var response = outbound;
|
|
if (response._httpRequest._httpServer.autoCompress &&
|
|
outbound.bufferOutput &&
|
|
outbound.headers.chunkedTransferEncoding) {
|
|
List acceptEncodings =
|
|
response._httpRequest.headers[HttpHeaders.ACCEPT_ENCODING];
|
|
List contentEncoding = outbound.headers[HttpHeaders.CONTENT_ENCODING];
|
|
if (acceptEncodings != null &&
|
|
acceptEncodings
|
|
.expand((list) => list.split(","))
|
|
.any((encoding) => encoding.trim().toLowerCase() == "gzip") &&
|
|
contentEncoding == null) {
|
|
outbound.headers.set(HttpHeaders.CONTENT_ENCODING, "gzip");
|
|
gzip = true;
|
|
}
|
|
}
|
|
if (drainRequest && !response._httpRequest._incoming.hasSubscriber) {
|
|
drainFuture = response._httpRequest.drain().catchError((_) {});
|
|
}
|
|
} else {
|
|
drainRequest = false;
|
|
}
|
|
if (ignoreBody) {
|
|
return write();
|
|
}
|
|
if (setOutgoing) {
|
|
int contentLength = outbound.headers.contentLength;
|
|
if (outbound.headers.chunkedTransferEncoding) {
|
|
chunked = true;
|
|
if (gzip) this.gzip = true;
|
|
} else if (contentLength >= 0) {
|
|
this.contentLength = contentLength;
|
|
}
|
|
}
|
|
if (drainFuture != null) {
|
|
return drainFuture.then((_) => write());
|
|
}
|
|
return write();
|
|
}
|
|
|
|
|
|
Future addStream(Stream<List<int>> stream) {
|
|
if (_socketError) {
|
|
stream.listen(null).cancel();
|
|
return new Future.value(outbound);
|
|
}
|
|
if (ignoreBody) {
|
|
stream.drain().catchError((_) {});
|
|
var future = writeHeaders();
|
|
if (future != null) {
|
|
return future.then((_) => close());
|
|
}
|
|
return close();
|
|
}
|
|
var sub;
|
|
// Use new stream so we are able to pause (see below listen). The
|
|
// alternative is to use stream.extand, but that won't give us a way of
|
|
// pausing.
|
|
var controller = new StreamController(
|
|
onPause: () => sub.pause(),
|
|
onResume: () => sub.resume(),
|
|
sync: true);
|
|
|
|
void onData(data) {
|
|
if (_socketError) return;
|
|
if (data.length == 0) return;
|
|
if (chunked) {
|
|
if (_gzip) {
|
|
_gzipAdd = controller.add;
|
|
_addGZipChunk(data, _gzipSink.add);
|
|
_gzipAdd = null;
|
|
return;
|
|
}
|
|
_addChunk(_chunkHeader(data.length), controller.add);
|
|
_pendingChunkedFooter = 2;
|
|
} else {
|
|
if (contentLength != null) {
|
|
_bytesWritten += data.length;
|
|
if (_bytesWritten > contentLength) {
|
|
controller.addError(new HttpException(
|
|
"Content size exceeds specified contentLength. "
|
|
"$_bytesWritten bytes written while expected "
|
|
"$contentLength. "
|
|
"[${new String.fromCharCodes(data)}]"));
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
_addChunk(data, controller.add);
|
|
}
|
|
|
|
sub = stream.listen(
|
|
onData,
|
|
onError: controller.addError,
|
|
onDone: controller.close,
|
|
cancelOnError: true);
|
|
// Write headers now that we are listening to the stream.
|
|
if (!headersWritten) {
|
|
var future = writeHeaders();
|
|
if (future != null) {
|
|
// While incoming is being drained, the pauseFuture is non-null. Pause
|
|
// output until it's drained.
|
|
sub.pause(future);
|
|
}
|
|
}
|
|
return socket.addStream(controller.stream)
|
|
.then((_) {
|
|
return outbound;
|
|
}, onError: (error) {
|
|
// Be sure to close it in case of an error.
|
|
if (_gzip) _gzipSink.close();
|
|
_socketError = true;
|
|
_doneCompleter.completeError(error);
|
|
if (_ignoreError(error)) {
|
|
return outbound;
|
|
} else {
|
|
throw error;
|
|
}
|
|
});
|
|
}
|
|
|
|
Future close() {
|
|
// If we are already closed, return that future.
|
|
if (_closeFuture != null) return _closeFuture;
|
|
// If we earlier saw an error, return immediate. The notification to
|
|
// _Http*Connection is already done.
|
|
if (_socketError) return new Future.value(outbound);
|
|
if (outbound._isConnectionClosed) return new Future.value(outbound);
|
|
if (!headersWritten && !ignoreBody) {
|
|
if (outbound.headers.contentLength == -1) {
|
|
// If no body was written, ignoreBody is false (it's not a HEAD
|
|
// request) and the content-length is unspecified, set contentLength to
|
|
// 0.
|
|
outbound.headers.chunkedTransferEncoding = false;
|
|
outbound.headers.contentLength = 0;
|
|
} else if (outbound.headers.contentLength > 0) {
|
|
var error = new HttpException(
|
|
"No content even though contentLength was specified to be "
|
|
"greater than 0: ${outbound.headers.contentLength}.",
|
|
uri: outbound._uri);
|
|
_doneCompleter.completeError(error);
|
|
return _closeFuture = new Future.error(error);
|
|
}
|
|
}
|
|
// If contentLength was specified, validate it.
|
|
if (contentLength != null) {
|
|
if (_bytesWritten < contentLength) {
|
|
var error = new HttpException(
|
|
"Content size below specified contentLength. "
|
|
" $_bytesWritten bytes written but expected "
|
|
"$contentLength.",
|
|
uri: outbound._uri);
|
|
_doneCompleter.completeError(error);
|
|
return _closeFuture = new Future.error(error);
|
|
}
|
|
}
|
|
|
|
Future finalize() {
|
|
// In case of chunked encoding (and gzip), handle remaining gzip data and
|
|
// append the 'footer' for chunked encoding.
|
|
if (chunked) {
|
|
if (_gzip) {
|
|
_gzipAdd = socket.add;
|
|
if (_gzipBufferLength > 0) {
|
|
_gzipSink.add(new Uint8List.view(
|
|
_gzipBuffer.buffer, 0, _gzipBufferLength));
|
|
}
|
|
_gzipBuffer = null;
|
|
_gzipSink.close();
|
|
_gzipAdd = null;
|
|
}
|
|
_addChunk(_chunkHeader(0), socket.add);
|
|
}
|
|
// Add any remaining data in the buffer.
|
|
if (_length > 0) {
|
|
socket.add(new Uint8List.view(_buffer.buffer, 0, _length));
|
|
}
|
|
// Clear references, for better GC.
|
|
_buffer = null;
|
|
// And finally flush it. As we support keep-alive, never close it from
|
|
// here. Once the socket is flushed, we'll be able to reuse it (signaled
|
|
// by the 'done' future).
|
|
return socket.flush()
|
|
.then((_) {
|
|
_doneCompleter.complete(socket);
|
|
return outbound;
|
|
}, onError: (error) {
|
|
_doneCompleter.completeError(error);
|
|
if (_ignoreError(error)) {
|
|
return outbound;
|
|
} else {
|
|
throw error;
|
|
}
|
|
});
|
|
}
|
|
|
|
var future = writeHeaders();
|
|
if (future != null) {
|
|
return _closeFuture = future.whenComplete(finalize);
|
|
}
|
|
return _closeFuture = finalize();
|
|
}
|
|
|
|
Future get done => _doneCompleter.future;
|
|
|
|
void setHeader(List<int> data, int length) {
|
|
assert(_length == 0);
|
|
assert(data.length == _OUTGOING_BUFFER_SIZE);
|
|
_buffer = data;
|
|
_length = length;
|
|
}
|
|
|
|
void set gzip(bool value) {
|
|
_gzip = value;
|
|
if (_gzip) {
|
|
_gzipBuffer = new Uint8List(_OUTGOING_BUFFER_SIZE);
|
|
assert(_gzipSink == null);
|
|
_gzipSink = new ZLibEncoder(gzip: true)
|
|
.startChunkedConversion(
|
|
new _HttpGZipSink((data) {
|
|
// We are closing down prematurely, due to an error. Discard.
|
|
if (_gzipAdd == null) return;
|
|
_addChunk(_chunkHeader(data.length), _gzipAdd);
|
|
_pendingChunkedFooter = 2;
|
|
_addChunk(data, _gzipAdd);
|
|
}));
|
|
}
|
|
}
|
|
|
|
bool _ignoreError(error)
|
|
=> (error is SocketException || error is TlsException) &&
|
|
outbound is HttpResponse;
|
|
|
|
void _addGZipChunk(chunk, void add(List<int> data)) {
|
|
if (!outbound.bufferOutput) {
|
|
add(chunk);
|
|
return;
|
|
}
|
|
if (chunk.length > _gzipBuffer.length - _gzipBufferLength) {
|
|
add(new Uint8List.view(
|
|
_gzipBuffer.buffer, 0, _gzipBufferLength));
|
|
_gzipBuffer = new Uint8List(_OUTGOING_BUFFER_SIZE);
|
|
_gzipBufferLength = 0;
|
|
}
|
|
if (chunk.length > _OUTGOING_BUFFER_SIZE) {
|
|
add(chunk);
|
|
} else {
|
|
_gzipBuffer.setRange(_gzipBufferLength,
|
|
_gzipBufferLength + chunk.length,
|
|
chunk);
|
|
_gzipBufferLength += chunk.length;
|
|
}
|
|
}
|
|
|
|
void _addChunk(chunk, void add(List<int> data)) {
|
|
if (!outbound.bufferOutput) {
|
|
if (_buffer != null) {
|
|
// If _buffer is not null, we have not written the header yet. Write
|
|
// it now.
|
|
add(new Uint8List.view(_buffer.buffer, 0, _length));
|
|
_buffer = null;
|
|
_length = 0;
|
|
}
|
|
add(chunk);
|
|
return;
|
|
}
|
|
if (chunk.length > _buffer.length - _length) {
|
|
add(new Uint8List.view(_buffer.buffer, 0, _length));
|
|
_buffer = new Uint8List(_OUTGOING_BUFFER_SIZE);
|
|
_length = 0;
|
|
}
|
|
if (chunk.length > _OUTGOING_BUFFER_SIZE) {
|
|
add(chunk);
|
|
} else {
|
|
_buffer.setRange(_length, _length + chunk.length, chunk);
|
|
_length += chunk.length;
|
|
}
|
|
}
|
|
|
|
List<int> _chunkHeader(int length) {
|
|
const hexDigits = const [0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
|
|
0x38, 0x39, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46];
|
|
if (length == 0) {
|
|
if (_pendingChunkedFooter == 2) return _footerAndChunk0Length;
|
|
return _chunk0Length;
|
|
}
|
|
int size = _pendingChunkedFooter;
|
|
int len = length;
|
|
// Compute a fast integer version of (log(length + 1) / log(16)).ceil().
|
|
while (len > 0) {
|
|
size++;
|
|
len >>= 4;
|
|
}
|
|
var footerAndHeader = new Uint8List(size + 2);
|
|
if (_pendingChunkedFooter == 2) {
|
|
footerAndHeader[0] = _CharCode.CR;
|
|
footerAndHeader[1] = _CharCode.LF;
|
|
}
|
|
int index = size;
|
|
while (index > _pendingChunkedFooter) {
|
|
footerAndHeader[--index] = hexDigits[length & 15];
|
|
length = length >> 4;
|
|
}
|
|
footerAndHeader[size + 0] = _CharCode.CR;
|
|
footerAndHeader[size + 1] = _CharCode.LF;
|
|
return footerAndHeader;
|
|
}
|
|
}
|
|
|
|
class _HttpClientConnection {
|
|
final String key;
|
|
final Socket _socket;
|
|
final bool _proxyTunnel;
|
|
final _HttpParser _httpParser;
|
|
StreamSubscription _subscription;
|
|
final _HttpClient _httpClient;
|
|
bool _dispose = false;
|
|
Timer _idleTimer;
|
|
bool closed = false;
|
|
Uri _currentUri;
|
|
|
|
Completer<_HttpIncoming> _nextResponseCompleter;
|
|
Future _streamFuture;
|
|
|
|
_HttpClientConnection(this.key, this._socket, this._httpClient,
|
|
[this._proxyTunnel = false])
|
|
: _httpParser = new _HttpParser.responseParser() {
|
|
_httpParser.listenToStream(_socket);
|
|
|
|
// Set up handlers on the parser here, so we are sure to get 'onDone' from
|
|
// the parser.
|
|
_subscription = _httpParser.listen(
|
|
(incoming) {
|
|
// Only handle one incoming response at the time. Keep the
|
|
// stream paused until the response have been processed.
|
|
_subscription.pause();
|
|
// We assume the response is not here, until we have send the request.
|
|
if (_nextResponseCompleter == null) {
|
|
throw new HttpException(
|
|
"Unexpected response (unsolicited response without request).",
|
|
uri: _currentUri);
|
|
}
|
|
_nextResponseCompleter.complete(incoming);
|
|
_nextResponseCompleter = null;
|
|
},
|
|
onError: (error, [StackTrace stackTrace]) {
|
|
if (_nextResponseCompleter != null) {
|
|
_nextResponseCompleter.completeError(
|
|
new HttpException(error.message, uri: _currentUri),
|
|
stackTrace);
|
|
_nextResponseCompleter = null;
|
|
}
|
|
},
|
|
onDone: () {
|
|
if (_nextResponseCompleter != null) {
|
|
_nextResponseCompleter.completeError(new HttpException(
|
|
"Connection closed before response was received",
|
|
uri: _currentUri));
|
|
_nextResponseCompleter = null;
|
|
}
|
|
close();
|
|
});
|
|
}
|
|
|
|
_HttpClientRequest send(Uri uri, int port, String method, _Proxy proxy) {
|
|
if (closed) {
|
|
throw new HttpException(
|
|
"Socket closed before request was sent", uri: uri);
|
|
}
|
|
_currentUri = uri;
|
|
// Start with pausing the parser.
|
|
_subscription.pause();
|
|
_ProxyCredentials proxyCreds; // Credentials used to authorize proxy.
|
|
_SiteCredentials creds; // Credentials used to authorize this request.
|
|
var outgoing = new _HttpOutgoing(_socket);
|
|
// Create new request object, wrapping the outgoing connection.
|
|
var request = new _HttpClientRequest(outgoing,
|
|
uri,
|
|
method,
|
|
proxy,
|
|
_httpClient,
|
|
this);
|
|
// For the Host header an IPv6 address must be enclosed in []'s.
|
|
var host = uri.host;
|
|
if (host.contains(':')) host = "[$host]";
|
|
request.headers
|
|
..host = host
|
|
..port = port
|
|
.._add(HttpHeaders.ACCEPT_ENCODING, "gzip");
|
|
if (_httpClient.userAgent != null) {
|
|
request.headers._add('user-agent', _httpClient.userAgent);
|
|
}
|
|
if (proxy.isAuthenticated) {
|
|
// If the proxy configuration contains user information use that
|
|
// for proxy basic authorization.
|
|
String auth = _CryptoUtils.bytesToBase64(
|
|
UTF8.encode("${proxy.username}:${proxy.password}"));
|
|
request.headers.set(HttpHeaders.PROXY_AUTHORIZATION, "Basic $auth");
|
|
} else if (!proxy.isDirect && _httpClient._proxyCredentials.length > 0) {
|
|
proxyCreds = _httpClient._findProxyCredentials(proxy);
|
|
if (proxyCreds != null) {
|
|
proxyCreds.authorize(request);
|
|
}
|
|
}
|
|
if (uri.userInfo != null && !uri.userInfo.isEmpty) {
|
|
// If the URL contains user information use that for basic
|
|
// authorization.
|
|
String auth =
|
|
_CryptoUtils.bytesToBase64(UTF8.encode(uri.userInfo));
|
|
request.headers.set(HttpHeaders.AUTHORIZATION, "Basic $auth");
|
|
} else {
|
|
// Look for credentials.
|
|
creds = _httpClient._findCredentials(uri);
|
|
if (creds != null) {
|
|
creds.authorize(request);
|
|
}
|
|
}
|
|
// Start sending the request (lazy, delayed until the user provides
|
|
// data).
|
|
_httpParser.isHead = method == "HEAD";
|
|
_streamFuture = outgoing.done
|
|
.then((s) {
|
|
// Request sent, set up response completer.
|
|
_nextResponseCompleter = new Completer();
|
|
|
|
// Listen for response.
|
|
_nextResponseCompleter.future
|
|
.then((incoming) {
|
|
_currentUri = null;
|
|
incoming.dataDone.then((closing) {
|
|
if (incoming.upgraded) {
|
|
_httpClient._connectionClosed(this);
|
|
startTimer();
|
|
return;
|
|
}
|
|
if (closed) return;
|
|
if (!closing &&
|
|
!_dispose &&
|
|
incoming.headers.persistentConnection &&
|
|
request.persistentConnection) {
|
|
// Return connection, now we are done.
|
|
_httpClient._returnConnection(this);
|
|
_subscription.resume();
|
|
} else {
|
|
destroy();
|
|
}
|
|
});
|
|
// For digest authentication if proxy check if the proxy
|
|
// requests the client to start using a new nonce for proxy
|
|
// authentication.
|
|
if (proxyCreds != null &&
|
|
proxyCreds.scheme == _AuthenticationScheme.DIGEST) {
|
|
var authInfo = incoming.headers["proxy-authentication-info"];
|
|
if (authInfo != null && authInfo.length == 1) {
|
|
var header =
|
|
_HeaderValue.parse(
|
|
authInfo[0], parameterSeparator: ',');
|
|
var nextnonce = header.parameters["nextnonce"];
|
|
if (nextnonce != null) proxyCreds.nonce = nextnonce;
|
|
}
|
|
}
|
|
// For digest authentication check if the server requests the
|
|
// client to start using a new nonce.
|
|
if (creds != null &&
|
|
creds.scheme == _AuthenticationScheme.DIGEST) {
|
|
var authInfo = incoming.headers["authentication-info"];
|
|
if (authInfo != null && authInfo.length == 1) {
|
|
var header =
|
|
_HeaderValue.parse(
|
|
authInfo[0], parameterSeparator: ',');
|
|
var nextnonce = header.parameters["nextnonce"];
|
|
if (nextnonce != null) creds.nonce = nextnonce;
|
|
}
|
|
}
|
|
request._onIncoming(incoming);
|
|
})
|
|
// If we see a state error, we failed to get the 'first'
|
|
// element.
|
|
.catchError((error) {
|
|
throw new HttpException(
|
|
"Connection closed before data was received", uri: uri);
|
|
}, test: (error) => error is StateError)
|
|
.catchError((error, stackTrace) {
|
|
// We are done with the socket.
|
|
destroy();
|
|
request._onError(error, stackTrace);
|
|
});
|
|
|
|
// Resume the parser now we have a handler.
|
|
_subscription.resume();
|
|
return s;
|
|
}, onError: (e) {
|
|
destroy();
|
|
});
|
|
return request;
|
|
}
|
|
|
|
Future<Socket> detachSocket() {
|
|
return _streamFuture.then(
|
|
(_) => new _DetachedSocket(_socket, _httpParser.detachIncoming()));
|
|
}
|
|
|
|
void destroy() {
|
|
closed = true;
|
|
_httpClient._connectionClosed(this);
|
|
_socket.destroy();
|
|
}
|
|
|
|
void close() {
|
|
closed = true;
|
|
_httpClient._connectionClosed(this);
|
|
_streamFuture
|
|
// TODO(ajohnsen): Add timeout.
|
|
.then((_) => _socket.destroy());
|
|
}
|
|
|
|
Future<_HttpClientConnection> createProxyTunnel(host, port, proxy, callback) {
|
|
_HttpClientRequest request =
|
|
send(new Uri(host: host, port: port),
|
|
port,
|
|
"CONNECT",
|
|
proxy);
|
|
if (proxy.isAuthenticated) {
|
|
// If the proxy configuration contains user information use that
|
|
// for proxy basic authorization.
|
|
String auth = _CryptoUtils.bytesToBase64(
|
|
UTF8.encode("${proxy.username}:${proxy.password}"));
|
|
request.headers.set(HttpHeaders.PROXY_AUTHORIZATION, "Basic $auth");
|
|
}
|
|
return request.close()
|
|
.then((response) {
|
|
if (response.statusCode != HttpStatus.OK) {
|
|
throw "Proxy failed to establish tunnel "
|
|
"(${response.statusCode} ${response.reasonPhrase})";
|
|
}
|
|
var socket = response._httpRequest._httpClientConnection._socket;
|
|
return SecureSocket.secure(
|
|
socket, host: host, onBadCertificate: callback);
|
|
})
|
|
.then((secureSocket) {
|
|
String key = _HttpClientConnection.makeKey(true, host, port);
|
|
return new _HttpClientConnection(
|
|
key, secureSocket, request._httpClient, true);
|
|
});
|
|
}
|
|
|
|
HttpConnectionInfo get connectionInfo => _HttpConnectionInfo.create(_socket);
|
|
|
|
static makeKey(bool isSecure, String host, int port) {
|
|
return isSecure ? "ssh:$host:$port" : "$host:$port";
|
|
}
|
|
|
|
void stopTimer() {
|
|
if (_idleTimer != null) {
|
|
_idleTimer.cancel();
|
|
_idleTimer = null;
|
|
}
|
|
}
|
|
|
|
void startTimer() {
|
|
assert(_idleTimer == null);
|
|
_idleTimer = new Timer(
|
|
_httpClient.idleTimeout,
|
|
() {
|
|
_idleTimer = null;
|
|
close();
|
|
});
|
|
}
|
|
}
|
|
|
|
class _ConnectionInfo {
|
|
final _HttpClientConnection connection;
|
|
final _Proxy proxy;
|
|
|
|
_ConnectionInfo(this.connection, this.proxy);
|
|
}
|
|
|
|
|
|
class _ConnectionTarget {
|
|
// Unique key for this connection target.
|
|
final String key;
|
|
final String host;
|
|
final int port;
|
|
final bool isSecure;
|
|
final Set<_HttpClientConnection> _idle = new HashSet();
|
|
final Set<_HttpClientConnection> _active = new HashSet();
|
|
final Queue _pending = new ListQueue();
|
|
int _connecting = 0;
|
|
|
|
_ConnectionTarget(this.key, this.host, this.port, this.isSecure);
|
|
|
|
bool get isEmpty => _idle.isEmpty && _active.isEmpty && _connecting == 0;
|
|
|
|
bool get hasIdle => _idle.isNotEmpty;
|
|
|
|
bool get hasActive => _active.isNotEmpty || _connecting > 0;
|
|
|
|
_HttpClientConnection takeIdle() {
|
|
assert(hasIdle);
|
|
_HttpClientConnection connection = _idle.first;
|
|
_idle.remove(connection);
|
|
connection.stopTimer();
|
|
_active.add(connection);
|
|
return connection;
|
|
}
|
|
|
|
_checkPending() {
|
|
if (_pending.isNotEmpty) {
|
|
_pending.removeFirst()();
|
|
}
|
|
}
|
|
|
|
void addNewActive(_HttpClientConnection connection) {
|
|
_active.add(connection);
|
|
}
|
|
|
|
void returnConnection(_HttpClientConnection connection) {
|
|
assert(_active.contains(connection));
|
|
_active.remove(connection);
|
|
_idle.add(connection);
|
|
connection.startTimer();
|
|
_checkPending();
|
|
}
|
|
|
|
void connectionClosed(_HttpClientConnection connection) {
|
|
assert(!_active.contains(connection) || !_idle.contains(connection));
|
|
_active.remove(connection);
|
|
_idle.remove(connection);
|
|
_checkPending();
|
|
}
|
|
|
|
void close(bool force) {
|
|
for (var c in _idle.toList()) {
|
|
c.close();
|
|
}
|
|
if (force) {
|
|
for (var c in _active.toList()) {
|
|
c.destroy();
|
|
}
|
|
}
|
|
}
|
|
|
|
Future<_ConnectionInfo> connect(String uriHost,
|
|
int uriPort,
|
|
_Proxy proxy,
|
|
_HttpClient client) {
|
|
if (hasIdle) {
|
|
var connection = takeIdle();
|
|
client._connectionsChanged();
|
|
return new Future.value(new _ConnectionInfo(connection, proxy));
|
|
}
|
|
if (client.maxConnectionsPerHost != null &&
|
|
_active.length + _connecting >= client.maxConnectionsPerHost) {
|
|
var completer = new Completer();
|
|
_pending.add(() {
|
|
connect(uriHost, uriPort, proxy, client)
|
|
.then(completer.complete, onError: completer.completeError);
|
|
});
|
|
return completer.future;
|
|
}
|
|
var currentBadCertificateCallback = client._badCertificateCallback;
|
|
bool callback(X509Certificate certificate) =>
|
|
currentBadCertificateCallback == null ? false :
|
|
currentBadCertificateCallback(certificate, uriHost, uriPort);
|
|
Future socketFuture = (isSecure && proxy.isDirect
|
|
? SecureSocket.connect(host,
|
|
port,
|
|
sendClientCertificate: true,
|
|
onBadCertificate: callback)
|
|
: Socket.connect(host, port));
|
|
_connecting++;
|
|
return socketFuture.then((socket) {
|
|
_connecting--;
|
|
socket.setOption(SocketOption.TCP_NODELAY, true);
|
|
var connection = new _HttpClientConnection(key, socket, client);
|
|
if (isSecure && !proxy.isDirect) {
|
|
connection._dispose = true;
|
|
return connection.createProxyTunnel(uriHost, uriPort, proxy, callback)
|
|
.then((tunnel) {
|
|
client._getConnectionTarget(uriHost, uriPort, true)
|
|
.addNewActive(tunnel);
|
|
return new _ConnectionInfo(tunnel, proxy);
|
|
});
|
|
} else {
|
|
addNewActive(connection);
|
|
return new _ConnectionInfo(connection, proxy);
|
|
}
|
|
}, onError: (error) {
|
|
_connecting--;
|
|
_checkPending();
|
|
throw error;
|
|
});
|
|
}
|
|
}
|
|
|
|
|
|
class _HttpClient implements HttpClient {
|
|
bool _closing = false;
|
|
bool _closingForcefully = false;
|
|
final Map<String, _ConnectionTarget> _connectionTargets
|
|
= new HashMap<String, _ConnectionTarget>();
|
|
final List<_Credentials> _credentials = [];
|
|
final List<_ProxyCredentials> _proxyCredentials = [];
|
|
Function _authenticate;
|
|
Function _authenticateProxy;
|
|
Function _findProxy = HttpClient.findProxyFromEnvironment;
|
|
Duration _idleTimeout = const Duration(seconds: 15);
|
|
Function _badCertificateCallback;
|
|
|
|
Duration get idleTimeout => _idleTimeout;
|
|
|
|
int maxConnectionsPerHost;
|
|
|
|
bool autoUncompress = true;
|
|
|
|
String userAgent = _getHttpVersion();
|
|
|
|
void set idleTimeout(Duration timeout) {
|
|
_idleTimeout = timeout;
|
|
for (var c in _connectionTargets.values) {
|
|
for (var idle in c._idle) {
|
|
// Reset timer. This is fine, as it's not happening often.
|
|
idle.stopTimer();
|
|
idle.startTimer();
|
|
}
|
|
}
|
|
}
|
|
|
|
set badCertificateCallback(bool callback(X509Certificate cert,
|
|
String host,
|
|
int port)) {
|
|
_badCertificateCallback = callback;
|
|
}
|
|
|
|
|
|
Future<HttpClientRequest> open(String method,
|
|
String host,
|
|
int port,
|
|
String path) {
|
|
Uri uri = new Uri(scheme: "http", host: host, port: port).resolve(path);
|
|
// TODO(sgjesse): The path set here can contain both query and
|
|
// fragment. They should be cracked and set correctly.
|
|
return _openUrl(method, uri);
|
|
}
|
|
|
|
Future<HttpClientRequest> openUrl(String method, Uri url) {
|
|
return _openUrl(method, url);
|
|
}
|
|
|
|
Future<HttpClientRequest> get(String host, int port, String path)
|
|
=> open("get", host, port, path);
|
|
|
|
Future<HttpClientRequest> getUrl(Uri url) => _openUrl("get", url);
|
|
|
|
Future<HttpClientRequest> post(String host, int port, String path)
|
|
=> open("post", host, port, path);
|
|
|
|
Future<HttpClientRequest> postUrl(Uri url) => _openUrl("post", url);
|
|
|
|
Future<HttpClientRequest> put(String host, int port, String path)
|
|
=> open("put", host, port, path);
|
|
|
|
Future<HttpClientRequest> putUrl(Uri url) => _openUrl("put", url);
|
|
|
|
Future<HttpClientRequest> delete(String host, int port, String path)
|
|
=> open("delete", host, port, path);
|
|
|
|
Future<HttpClientRequest> deleteUrl(Uri url) => _openUrl("delete", url);
|
|
|
|
Future<HttpClientRequest> head(String host, int port, String path)
|
|
=> open("head", host, port, path);
|
|
|
|
Future<HttpClientRequest> headUrl(Uri url) => _openUrl("head", url);
|
|
|
|
Future<HttpClientRequest> patch(String host, int port, String path)
|
|
=> open("patch", host, port, path);
|
|
|
|
Future<HttpClientRequest> patchUrl(Uri url) => _openUrl("patch", url);
|
|
|
|
void close({bool force: false}) {
|
|
_closing = true;
|
|
_closingForcefully = force;
|
|
_closeConnections(_closingForcefully);
|
|
assert(!_connectionTargets.values.any((s) => s.hasIdle));
|
|
assert(!force ||
|
|
!_connectionTargets.values.any((s) => s._active.isNotEmpty));
|
|
}
|
|
|
|
set authenticate(Future<bool> f(Uri url, String scheme, String realm)) {
|
|
_authenticate = f;
|
|
}
|
|
|
|
void addCredentials(Uri url, String realm, HttpClientCredentials cr) =>
|
|
_credentials.add(new _SiteCredentials(url, realm, cr));
|
|
|
|
set authenticateProxy(
|
|
Future<bool> f(String host, int port, String scheme, String realm)) {
|
|
_authenticateProxy = f;
|
|
}
|
|
|
|
void addProxyCredentials(String host,
|
|
int port,
|
|
String realm,
|
|
HttpClientCredentials cr) =>
|
|
_proxyCredentials.add(new _ProxyCredentials(host, port, realm, cr));
|
|
|
|
set findProxy(String f(Uri uri)) => _findProxy = f;
|
|
|
|
Future<HttpClientRequest> _openUrl(String method, Uri uri) {
|
|
if (method == null) {
|
|
throw new ArgumentError(method);
|
|
}
|
|
if (method != "CONNECT") {
|
|
if (uri.host.isEmpty) {
|
|
throw new ArgumentError("No host specified in URI $uri");
|
|
} else if (uri.scheme != "http" && uri.scheme != "https") {
|
|
throw new ArgumentError(
|
|
"Unsupported scheme '${uri.scheme}' in URI $uri");
|
|
}
|
|
}
|
|
|
|
bool isSecure = (uri.scheme == "https");
|
|
int port = uri.port;
|
|
if (port == 0) {
|
|
port = isSecure ?
|
|
HttpClient.DEFAULT_HTTPS_PORT :
|
|
HttpClient.DEFAULT_HTTP_PORT;
|
|
}
|
|
// Check to see if a proxy server should be used for this connection.
|
|
var proxyConf = const _ProxyConfiguration.direct();
|
|
if (_findProxy != null) {
|
|
// TODO(sgjesse): Keep a map of these as normally only a few
|
|
// configuration strings will be used.
|
|
try {
|
|
proxyConf = new _ProxyConfiguration(_findProxy(uri));
|
|
} catch (error, stackTrace) {
|
|
return new Future.error(error, stackTrace);
|
|
}
|
|
}
|
|
return _getConnection(uri.host, port, proxyConf, isSecure)
|
|
.then((info) {
|
|
send(info) {
|
|
return info.connection.send(uri,
|
|
port,
|
|
method.toUpperCase(),
|
|
info.proxy);
|
|
}
|
|
// If the connection was closed before the request was sent, create
|
|
// and use another connection.
|
|
if (info.connection.closed) {
|
|
return _getConnection(uri.host, port, proxyConf, isSecure)
|
|
.then(send);
|
|
}
|
|
return send(info);
|
|
});
|
|
}
|
|
|
|
Future<HttpClientRequest> _openUrlFromRequest(String method,
|
|
Uri uri,
|
|
_HttpClientRequest previous) {
|
|
// If the new URI is relative (to either '/' or some sub-path),
|
|
// construct a full URI from the previous one.
|
|
Uri resolved = previous.uri.resolveUri(uri);
|
|
return openUrl(method, resolved).then((_HttpClientRequest request) {
|
|
|
|
request
|
|
// Only follow redirects if initial request did.
|
|
..followRedirects = previous.followRedirects
|
|
// Allow same number of redirects.
|
|
..maxRedirects = previous.maxRedirects;
|
|
// Copy headers.
|
|
for (var header in previous.headers._headers.keys) {
|
|
if (request.headers[header] == null) {
|
|
request.headers.set(header, previous.headers[header]);
|
|
}
|
|
}
|
|
return request
|
|
..headers.chunkedTransferEncoding = false
|
|
..contentLength = 0;
|
|
});
|
|
}
|
|
|
|
// Return a live connection to the idle pool.
|
|
void _returnConnection(_HttpClientConnection connection) {
|
|
_connectionTargets[connection.key].returnConnection(connection);
|
|
_connectionsChanged();
|
|
}
|
|
|
|
// Remove a closed connnection from the active set.
|
|
void _connectionClosed(_HttpClientConnection connection) {
|
|
connection.stopTimer();
|
|
var connectionTarget = _connectionTargets[connection.key];
|
|
if (connectionTarget != null) {
|
|
connectionTarget.connectionClosed(connection);
|
|
if (connectionTarget.isEmpty) {
|
|
_connectionTargets.remove(connection.key);
|
|
}
|
|
_connectionsChanged();
|
|
}
|
|
}
|
|
|
|
void _connectionsChanged() {
|
|
if (_closing) {
|
|
_closeConnections(_closingForcefully);
|
|
}
|
|
}
|
|
|
|
void _closeConnections(bool force) {
|
|
for (var connectionTarget in _connectionTargets.values.toList()) {
|
|
connectionTarget.close(force);
|
|
}
|
|
}
|
|
|
|
_ConnectionTarget _getConnectionTarget(String host, int port, bool isSecure) {
|
|
String key = _HttpClientConnection.makeKey(isSecure, host, port);
|
|
return _connectionTargets.putIfAbsent(
|
|
key, () => new _ConnectionTarget(key, host, port, isSecure));
|
|
}
|
|
|
|
// Get a new _HttpClientConnection, from the matching _ConnectionTarget.
|
|
Future<_ConnectionInfo> _getConnection(String uriHost,
|
|
int uriPort,
|
|
_ProxyConfiguration proxyConf,
|
|
bool isSecure) {
|
|
Iterator<_Proxy> proxies = proxyConf.proxies.iterator;
|
|
|
|
Future<_ConnectionInfo> connect(error) {
|
|
if (!proxies.moveNext()) return new Future.error(error);
|
|
_Proxy proxy = proxies.current;
|
|
String host = proxy.isDirect ? uriHost: proxy.host;
|
|
int port = proxy.isDirect ? uriPort: proxy.port;
|
|
return _getConnectionTarget(host, port, isSecure)
|
|
.connect(uriHost, uriPort, proxy, this)
|
|
// On error, continue with next proxy.
|
|
.catchError(connect);
|
|
}
|
|
return connect(new HttpException("No proxies given"));
|
|
}
|
|
|
|
_SiteCredentials _findCredentials(Uri url, [_AuthenticationScheme scheme]) {
|
|
// Look for credentials.
|
|
_SiteCredentials cr =
|
|
_credentials.fold(null, (prev, value) {
|
|
if (value.applies(url, scheme)) {
|
|
if (prev == null) return value;
|
|
return value.uri.path.length > prev.uri.path.length ? value : prev;
|
|
} else {
|
|
return prev;
|
|
}
|
|
});
|
|
return cr;
|
|
}
|
|
|
|
_ProxyCredentials _findProxyCredentials(_Proxy proxy,
|
|
[_AuthenticationScheme scheme]) {
|
|
// Look for credentials.
|
|
var it = _proxyCredentials.iterator;
|
|
while (it.moveNext()) {
|
|
if (it.current.applies(proxy, scheme)) {
|
|
return it.current;
|
|
}
|
|
}
|
|
}
|
|
|
|
void _removeCredentials(_Credentials cr) {
|
|
int index = _credentials.indexOf(cr);
|
|
if (index != -1) {
|
|
_credentials.removeAt(index);
|
|
}
|
|
}
|
|
|
|
void _removeProxyCredentials(_Credentials cr) {
|
|
int index = _proxyCredentials.indexOf(cr);
|
|
if (index != -1) {
|
|
_proxyCredentials.removeAt(index);
|
|
}
|
|
}
|
|
|
|
static String _findProxyFromEnvironment(Uri url,
|
|
Map<String, String> environment) {
|
|
checkNoProxy(String option) {
|
|
if (option == null) return null;
|
|
Iterator<String> names = option.split(",").map((s) => s.trim()).iterator;
|
|
while (names.moveNext()) {
|
|
var name = names.current;
|
|
if ((name.startsWith("[") &&
|
|
name.endsWith("]") &&
|
|
"[${url.host}]" == name) ||
|
|
(name.isNotEmpty &&
|
|
url.host.endsWith(name))) {
|
|
return "DIRECT";
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
checkProxy(String option) {
|
|
if (option == null) return null;
|
|
option = option.trim();
|
|
if (option.isEmpty) return null;
|
|
int pos = option.indexOf("://");
|
|
if (pos >= 0) {
|
|
option = option.substring(pos + 3);
|
|
}
|
|
pos = option.indexOf("/");
|
|
if (pos >= 0) {
|
|
option = option.substring(0, pos);
|
|
}
|
|
// Add default port if no port configured.
|
|
if (option.indexOf("[") == 0) {
|
|
var pos = option.lastIndexOf(":");
|
|
if (option.indexOf("]") > pos) option = "$option:1080";
|
|
} else {
|
|
if (option.indexOf(":") == -1) option = "$option:1080";
|
|
}
|
|
return "PROXY $option";
|
|
}
|
|
|
|
// Default to using the process current environment.
|
|
if (environment == null) environment = _platformEnvironmentCache;
|
|
|
|
String proxyCfg;
|
|
|
|
String noProxy = environment["no_proxy"];
|
|
if (noProxy == null) noProxy = environment["NO_PROXY"];
|
|
if ((proxyCfg = checkNoProxy(noProxy)) != null) {
|
|
return proxyCfg;
|
|
}
|
|
|
|
if (url.scheme == "http") {
|
|
String proxy = environment["http_proxy"];
|
|
if (proxy == null) proxy = environment["HTTP_PROXY"];
|
|
if ((proxyCfg = checkProxy(proxy)) != null) {
|
|
return proxyCfg;
|
|
}
|
|
} else if (url.scheme == "https") {
|
|
String proxy = environment["https_proxy"];
|
|
if (proxy == null) proxy = environment["HTTPS_PROXY"];
|
|
if ((proxyCfg = checkProxy(proxy)) != null) {
|
|
return proxyCfg;
|
|
}
|
|
}
|
|
return "DIRECT";
|
|
}
|
|
|
|
static Map<String, String> _platformEnvironmentCache = Platform.environment;
|
|
}
|
|
|
|
|
|
class _HttpConnection
|
|
extends LinkedListEntry<_HttpConnection> with _ServiceObject {
|
|
static const _ACTIVE = 0;
|
|
static const _IDLE = 1;
|
|
static const _CLOSING = 2;
|
|
static const _DETACHED = 3;
|
|
|
|
// Use HashMap, as we don't need to keep order.
|
|
static Map<int, _HttpConnection> _connections =
|
|
new HashMap<int, _HttpConnection>();
|
|
|
|
final _socket;
|
|
final _HttpServer _httpServer;
|
|
final _HttpParser _httpParser;
|
|
int _state = _IDLE;
|
|
StreamSubscription _subscription;
|
|
bool _idleMark = false;
|
|
Future _streamFuture;
|
|
|
|
_HttpConnection(this._socket, this._httpServer)
|
|
: _httpParser = new _HttpParser.requestParser() {
|
|
try { _socket._owner = this; } catch (_) { print(_); }
|
|
_connections[_serviceId] = this;
|
|
_httpParser.listenToStream(_socket);
|
|
_subscription = _httpParser.listen(
|
|
(incoming) {
|
|
_httpServer._markActive(this);
|
|
// If the incoming was closed, close the connection.
|
|
incoming.dataDone.then((closing) {
|
|
if (closing) destroy();
|
|
});
|
|
// Only handle one incoming request at the time. Keep the
|
|
// stream paused until the request has been send.
|
|
_subscription.pause();
|
|
_state = _ACTIVE;
|
|
var outgoing = new _HttpOutgoing(_socket);
|
|
var response = new _HttpResponse(incoming.uri,
|
|
incoming.headers.protocolVersion,
|
|
outgoing,
|
|
_httpServer.defaultResponseHeaders,
|
|
_httpServer.serverHeader);
|
|
var request = new _HttpRequest(response, incoming, _httpServer, this);
|
|
_streamFuture = outgoing.done
|
|
.then((_) {
|
|
response.deadline = null;
|
|
if (_state == _DETACHED) return;
|
|
if (response.persistentConnection &&
|
|
request.persistentConnection &&
|
|
incoming.fullBodyRead &&
|
|
!_httpParser.upgrade &&
|
|
!_httpServer.closed) {
|
|
_state = _IDLE;
|
|
_idleMark = false;
|
|
_httpServer._markIdle(this);
|
|
// Resume the subscription for incoming requests as the
|
|
// request is now processed.
|
|
_subscription.resume();
|
|
} else {
|
|
// Close socket, keep-alive not used or body sent before
|
|
// received data was handled.
|
|
destroy();
|
|
}
|
|
}, onError: (_) {
|
|
destroy();
|
|
});
|
|
outgoing.ignoreBody = request.method == "HEAD";
|
|
response._httpRequest = request;
|
|
_httpServer._handleRequest(request);
|
|
},
|
|
onDone: () {
|
|
destroy();
|
|
},
|
|
onError: (error) {
|
|
// Ignore failed requests that was closed before headers was received.
|
|
destroy();
|
|
});
|
|
}
|
|
|
|
void markIdle() {
|
|
_idleMark = true;
|
|
}
|
|
|
|
bool get isMarkedIdle => _idleMark;
|
|
|
|
void destroy() {
|
|
if (_state == _CLOSING || _state == _DETACHED) return;
|
|
_state = _CLOSING;
|
|
_socket.destroy();
|
|
_httpServer._connectionClosed(this);
|
|
_connections.remove(_serviceId);
|
|
}
|
|
|
|
Future<Socket> detachSocket() {
|
|
_state = _DETACHED;
|
|
// Remove connection from server.
|
|
_httpServer._connectionClosed(this);
|
|
|
|
_HttpDetachedIncoming detachedIncoming = _httpParser.detachIncoming();
|
|
|
|
return _streamFuture.then((_) {
|
|
_connections.remove(_serviceId);
|
|
return new _DetachedSocket(_socket, detachedIncoming);
|
|
});
|
|
}
|
|
|
|
HttpConnectionInfo get connectionInfo => _HttpConnectionInfo.create(_socket);
|
|
|
|
bool get _isActive => _state == _ACTIVE;
|
|
bool get _isIdle => _state == _IDLE;
|
|
bool get _isClosing => _state == _CLOSING;
|
|
bool get _isDetached => _state == _DETACHED;
|
|
|
|
String get _serviceTypePath => 'io/http/serverconnections';
|
|
String get _serviceTypeName => 'HttpServerConnection';
|
|
|
|
Map _toJSON(bool ref) {
|
|
var name = "${_socket.address.host}:${_socket.port} <-> "
|
|
"${_socket.remoteAddress.host}:${_socket.remotePort}";
|
|
var r = {
|
|
'id': _servicePath,
|
|
'type': _serviceType(ref),
|
|
'name': name,
|
|
'user_name': name,
|
|
};
|
|
if (ref) {
|
|
return r;
|
|
}
|
|
r['server'] = _httpServer._toJSON(true);
|
|
try {
|
|
r['socket'] = _socket._toJSON(true);
|
|
} catch (_) {
|
|
r['socket'] = {
|
|
'id': _servicePath,
|
|
'type': '@Socket',
|
|
'name': 'UserSocket',
|
|
'user_name': 'UserSocket',
|
|
};
|
|
}
|
|
switch (_state) {
|
|
case _ACTIVE: r['state'] = "Active"; break;
|
|
case _IDLE: r['state'] = "Idle"; break;
|
|
case _CLOSING: r['state'] = "Closing"; break;
|
|
case _DETACHED: r['state'] = "Detached"; break;
|
|
default: r['state'] = 'Unknown'; break;
|
|
}
|
|
return r;
|
|
}
|
|
}
|
|
|
|
|
|
// HTTP server waiting for socket connections.
|
|
class _HttpServer
|
|
extends Stream<HttpRequest> with _ServiceObject
|
|
implements HttpServer {
|
|
// Use default Map so we keep order.
|
|
static Map<int, _HttpServer> _servers = new Map<int, _HttpServer>();
|
|
|
|
String serverHeader;
|
|
final HttpHeaders defaultResponseHeaders = _initDefaultResponseHeaders();
|
|
bool autoCompress = false;
|
|
|
|
Duration _idleTimeout;
|
|
Timer _idleTimer;
|
|
|
|
static Future<HttpServer> bind(address, int port, int backlog) {
|
|
return ServerSocket.bind(address, port, backlog: backlog).then((socket) {
|
|
return new _HttpServer._(socket, true);
|
|
});
|
|
}
|
|
|
|
static Future<HttpServer> bindSecure(address,
|
|
int port,
|
|
int backlog,
|
|
String certificate_name,
|
|
bool requestClientCertificate) {
|
|
return SecureServerSocket.bind(
|
|
address,
|
|
port,
|
|
certificate_name,
|
|
backlog: backlog,
|
|
requestClientCertificate: requestClientCertificate)
|
|
.then((socket) {
|
|
return new _HttpServer._(socket, true);
|
|
});
|
|
}
|
|
|
|
_HttpServer._(this._serverSocket, this._closeServer) {
|
|
_controller = new StreamController<HttpRequest>(sync: true,
|
|
onCancel: close);
|
|
idleTimeout = const Duration(seconds: 120);
|
|
_servers[_serviceId] = this;
|
|
_serverSocket._owner = this;
|
|
}
|
|
|
|
_HttpServer.listenOn(this._serverSocket) : _closeServer = false {
|
|
_controller = new StreamController<HttpRequest>(sync: true,
|
|
onCancel: close);
|
|
idleTimeout = const Duration(seconds: 120);
|
|
_servers[_serviceId] = this;
|
|
try { _serverSocket._owner = this; } catch (_) {}
|
|
}
|
|
|
|
static HttpHeaders _initDefaultResponseHeaders() {
|
|
var defaultResponseHeaders = new _HttpHeaders('1.1');
|
|
defaultResponseHeaders.contentType = ContentType.TEXT;
|
|
defaultResponseHeaders.set('X-Frame-Options', 'SAMEORIGIN');
|
|
defaultResponseHeaders.set('X-Content-Type-Options', 'nosniff');
|
|
defaultResponseHeaders.set('X-XSS-Protection', '1; mode=block');
|
|
return defaultResponseHeaders;
|
|
}
|
|
|
|
Duration get idleTimeout => _idleTimeout;
|
|
|
|
void set idleTimeout(Duration duration) {
|
|
if (_idleTimer != null) {
|
|
_idleTimer.cancel();
|
|
_idleTimer = null;
|
|
}
|
|
_idleTimeout = duration;
|
|
if (_idleTimeout != null) {
|
|
_idleTimer = new Timer.periodic(_idleTimeout, (_) {
|
|
for (var idle in _idleConnections.toList()) {
|
|
if (idle.isMarkedIdle) {
|
|
idle.destroy();
|
|
} else {
|
|
idle.markIdle();
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
StreamSubscription<HttpRequest> listen(void onData(HttpRequest event),
|
|
{Function onError,
|
|
void onDone(),
|
|
bool cancelOnError}) {
|
|
_serverSocket.listen(
|
|
(Socket socket) {
|
|
socket.setOption(SocketOption.TCP_NODELAY, true);
|
|
// Accept the client connection.
|
|
_HttpConnection connection = new _HttpConnection(socket, this);
|
|
_idleConnections.add(connection);
|
|
},
|
|
onError: (error) {
|
|
// Ignore HandshakeExceptions as they are bound to a single request,
|
|
// and are not fatal for the server.
|
|
if (error is! HandshakeException) {
|
|
_controller.addError(error);
|
|
}
|
|
},
|
|
onDone: _controller.close);
|
|
return _controller.stream.listen(onData,
|
|
onError: onError,
|
|
onDone: onDone,
|
|
cancelOnError: cancelOnError);
|
|
}
|
|
|
|
Future close({bool force: false}) {
|
|
closed = true;
|
|
Future result;
|
|
if (_serverSocket != null && _closeServer) {
|
|
result = _serverSocket.close();
|
|
} else {
|
|
result = new Future.value();
|
|
}
|
|
idleTimeout = null;
|
|
if (force) {
|
|
for (var c in _activeConnections.toList()) {
|
|
c.destroy();
|
|
}
|
|
assert(_activeConnections.isEmpty);
|
|
}
|
|
for (var c in _idleConnections.toList()) {
|
|
c.destroy();
|
|
}
|
|
_maybePerformCleanup();
|
|
return result;
|
|
}
|
|
|
|
void _maybePerformCleanup() {
|
|
if (closed &&
|
|
_idleConnections.isEmpty &&
|
|
_activeConnections.isEmpty &&
|
|
_sessionManagerInstance != null) {
|
|
_sessionManagerInstance.close();
|
|
_sessionManagerInstance = null;
|
|
_servers.remove(_serviceId);
|
|
}
|
|
}
|
|
|
|
int get port {
|
|
if (closed) throw new HttpException("HttpServer is not bound to a socket");
|
|
return _serverSocket.port;
|
|
}
|
|
|
|
InternetAddress get address {
|
|
if (closed) throw new HttpException("HttpServer is not bound to a socket");
|
|
return _serverSocket.address;
|
|
}
|
|
|
|
set sessionTimeout(int timeout) {
|
|
_sessionManager.sessionTimeout = timeout;
|
|
}
|
|
|
|
void _handleRequest(_HttpRequest request) {
|
|
// Delay the request until the isolate's message-queue is handled.
|
|
// This greatly improves scheduling when a lot of requests are active.
|
|
Timer.run(() {
|
|
if (!closed) {
|
|
_controller.add(request);
|
|
} else {
|
|
request._httpConnection.destroy();
|
|
}
|
|
});
|
|
}
|
|
|
|
void _handleError(error) {
|
|
if (!closed) _controller.addError(error);
|
|
}
|
|
|
|
void _connectionClosed(_HttpConnection connection) {
|
|
// Remove itself from either idle or active connections.
|
|
connection.unlink();
|
|
_maybePerformCleanup();
|
|
}
|
|
|
|
void _markIdle(_HttpConnection connection) {
|
|
_activeConnections.remove(connection);
|
|
_idleConnections.add(connection);
|
|
}
|
|
|
|
void _markActive(_HttpConnection connection) {
|
|
_idleConnections.remove(connection);
|
|
_activeConnections.add(connection);
|
|
}
|
|
|
|
_HttpSessionManager get _sessionManager {
|
|
// Lazy init.
|
|
if (_sessionManagerInstance == null) {
|
|
_sessionManagerInstance = new _HttpSessionManager();
|
|
}
|
|
return _sessionManagerInstance;
|
|
}
|
|
|
|
HttpConnectionsInfo connectionsInfo() {
|
|
HttpConnectionsInfo result = new HttpConnectionsInfo();
|
|
result.total = _activeConnections.length + _idleConnections.length;
|
|
_activeConnections.forEach((_HttpConnection conn) {
|
|
if (conn._isActive) {
|
|
result.active++;
|
|
} else {
|
|
assert(conn._isClosing);
|
|
result.closing++;
|
|
}
|
|
});
|
|
_idleConnections.forEach((_HttpConnection conn) {
|
|
result.idle++;
|
|
assert(conn._isIdle);
|
|
});
|
|
return result;
|
|
}
|
|
|
|
String get _serviceTypePath => 'io/http/servers';
|
|
String get _serviceTypeName => 'HttpServer';
|
|
|
|
Map _toJSON(bool ref) {
|
|
var r = {
|
|
'id': _servicePath,
|
|
'type': _serviceType(ref),
|
|
'name': '${address.host}:$port',
|
|
'user_name': '${address.host}:$port',
|
|
};
|
|
if (ref) {
|
|
return r;
|
|
}
|
|
try {
|
|
r['socket'] = _serverSocket._toJSON(true);
|
|
} catch (_) {
|
|
r['socket'] = {
|
|
'id': _servicePath,
|
|
'type': '@Socket',
|
|
'name': 'UserSocket',
|
|
'user_name': 'UserSocket',
|
|
};
|
|
}
|
|
r['port'] = port;
|
|
r['address'] = address.host;
|
|
r['active'] = _activeConnections.map((c) => c._toJSON(true)).toList();
|
|
r['idle'] = _idleConnections.map((c) => c._toJSON(true)).toList();
|
|
r['closed'] = closed;
|
|
return r;
|
|
}
|
|
|
|
_HttpSessionManager _sessionManagerInstance;
|
|
|
|
// Indicated if the http server has been closed.
|
|
bool closed = false;
|
|
|
|
// The server listen socket. Untyped as it can be both ServerSocket and
|
|
// SecureServerSocket.
|
|
final _serverSocket;
|
|
final bool _closeServer;
|
|
|
|
// Set of currently connected clients.
|
|
final LinkedList<_HttpConnection> _activeConnections
|
|
= new LinkedList<_HttpConnection>();
|
|
final LinkedList<_HttpConnection> _idleConnections
|
|
= new LinkedList<_HttpConnection>();
|
|
StreamController<HttpRequest> _controller;
|
|
}
|
|
|
|
|
|
class _ProxyConfiguration {
|
|
static const String PROXY_PREFIX = "PROXY ";
|
|
static const String DIRECT_PREFIX = "DIRECT";
|
|
|
|
_ProxyConfiguration(String configuration) : proxies = new List<_Proxy>() {
|
|
if (configuration == null) {
|
|
throw new HttpException("Invalid proxy configuration $configuration");
|
|
}
|
|
List<String> list = configuration.split(";");
|
|
list.forEach((String proxy) {
|
|
proxy = proxy.trim();
|
|
if (!proxy.isEmpty) {
|
|
if (proxy.startsWith(PROXY_PREFIX)) {
|
|
String username;
|
|
String password;
|
|
// Skip the "PROXY " prefix.
|
|
proxy = proxy.substring(PROXY_PREFIX.length).trim();
|
|
// Look for proxy authentication.
|
|
int at = proxy.indexOf("@");
|
|
if (at != -1) {
|
|
String userinfo = proxy.substring(0, at).trim();
|
|
proxy = proxy.substring(at + 1).trim();
|
|
int colon = userinfo.indexOf(":");
|
|
if (colon == -1 || colon == 0 || colon == proxy.length - 1) {
|
|
throw new HttpException(
|
|
"Invalid proxy configuration $configuration");
|
|
}
|
|
username = userinfo.substring(0, colon).trim();
|
|
password = userinfo.substring(colon + 1).trim();
|
|
}
|
|
// Look for proxy host and port.
|
|
int colon = proxy.lastIndexOf(":");
|
|
if (colon == -1 || colon == 0 || colon == proxy.length - 1) {
|
|
throw new HttpException(
|
|
"Invalid proxy configuration $configuration");
|
|
}
|
|
String host = proxy.substring(0, colon).trim();
|
|
if (host.startsWith("[") && host.endsWith("]")) {
|
|
host = host.substring(1, host.length - 1);
|
|
}
|
|
String portString = proxy.substring(colon + 1).trim();
|
|
int port;
|
|
try {
|
|
port = int.parse(portString);
|
|
} on FormatException catch (e) {
|
|
throw new HttpException(
|
|
"Invalid proxy configuration $configuration, "
|
|
"invalid port '$portString'");
|
|
}
|
|
proxies.add(new _Proxy(host, port, username, password));
|
|
} else if (proxy.trim() == DIRECT_PREFIX) {
|
|
proxies.add(new _Proxy.direct());
|
|
} else {
|
|
throw new HttpException("Invalid proxy configuration $configuration");
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
const _ProxyConfiguration.direct()
|
|
: proxies = const [const _Proxy.direct()];
|
|
|
|
final List<_Proxy> proxies;
|
|
}
|
|
|
|
|
|
class _Proxy {
|
|
final String host;
|
|
final int port;
|
|
final String username;
|
|
final String password;
|
|
final bool isDirect;
|
|
|
|
const _Proxy(this.host, this.port, this.username, this.password)
|
|
: isDirect = false;
|
|
const _Proxy.direct() : host = null, port = null,
|
|
username = null, password = null, isDirect = true;
|
|
|
|
bool get isAuthenticated => username != null;
|
|
}
|
|
|
|
|
|
class _HttpConnectionInfo implements HttpConnectionInfo {
|
|
InternetAddress remoteAddress;
|
|
int remotePort;
|
|
int localPort;
|
|
|
|
static _HttpConnectionInfo create(Socket socket) {
|
|
if (socket == null) return null;
|
|
try {
|
|
_HttpConnectionInfo info = new _HttpConnectionInfo();
|
|
return info
|
|
..remoteAddress = socket.remoteAddress
|
|
..remotePort = socket.remotePort
|
|
..localPort = socket.port;
|
|
} catch (e) { }
|
|
return null;
|
|
}
|
|
}
|
|
|
|
|
|
class _DetachedSocket extends Stream<List<int>> implements Socket {
|
|
final Stream<List<int>> _incoming;
|
|
final _socket;
|
|
|
|
_DetachedSocket(this._socket, this._incoming);
|
|
|
|
StreamSubscription<List<int>> listen(void onData(List<int> event),
|
|
{Function onError,
|
|
void onDone(),
|
|
bool cancelOnError}) {
|
|
return _incoming.listen(onData,
|
|
onError: onError,
|
|
onDone: onDone,
|
|
cancelOnError: cancelOnError);
|
|
}
|
|
|
|
Encoding get encoding => _socket.encoding;
|
|
|
|
void set encoding(Encoding value) {
|
|
_socket.encoding = value;
|
|
}
|
|
|
|
void write(Object obj) => _socket.write(obj);
|
|
|
|
void writeln([Object obj = ""]) => _socket.writeln(obj);
|
|
|
|
void writeCharCode(int charCode) => _socket.writeCharCode(charCode);
|
|
|
|
void writeAll(Iterable objects, [String separator = ""]) {
|
|
_socket.writeAll(objects, separator);
|
|
}
|
|
|
|
void add(List<int> bytes) => _socket.add(bytes);
|
|
|
|
void addError(error, [StackTrace stackTrace]) =>
|
|
_socket.addError(error, stackTrace);
|
|
|
|
Future<Socket> addStream(Stream<List<int>> stream) {
|
|
return _socket.addStream(stream);
|
|
}
|
|
|
|
void destroy() => _socket.destroy();
|
|
|
|
Future flush() => _socket.flush();
|
|
|
|
Future close() => _socket.close();
|
|
|
|
Future<Socket> get done => _socket.done;
|
|
|
|
int get port => _socket.port;
|
|
|
|
InternetAddress get address => _socket.address;
|
|
|
|
InternetAddress get remoteAddress => _socket.remoteAddress;
|
|
|
|
int get remotePort => _socket.remotePort;
|
|
|
|
bool setOption(SocketOption option, bool enabled) {
|
|
return _socket.setOption(option, enabled);
|
|
}
|
|
|
|
Map _toJSON(bool ref) => _socket._toJSON(ref);
|
|
void set _owner(owner) { _socket._owner = owner; }
|
|
}
|
|
|
|
|
|
class _AuthenticationScheme {
|
|
final int _scheme;
|
|
|
|
static const UNKNOWN = const _AuthenticationScheme(-1);
|
|
static const BASIC = const _AuthenticationScheme(0);
|
|
static const DIGEST = const _AuthenticationScheme(1);
|
|
|
|
const _AuthenticationScheme(this._scheme);
|
|
|
|
factory _AuthenticationScheme.fromString(String scheme) {
|
|
if (scheme.toLowerCase() == "basic") return BASIC;
|
|
if (scheme.toLowerCase() == "digest") return DIGEST;
|
|
return UNKNOWN;
|
|
}
|
|
|
|
String toString() {
|
|
if (this == BASIC) return "Basic";
|
|
if (this == DIGEST) return "Digest";
|
|
return "Unknown";
|
|
}
|
|
}
|
|
|
|
|
|
abstract class _Credentials {
|
|
_HttpClientCredentials credentials;
|
|
String realm;
|
|
bool used = false;
|
|
|
|
// Digest specific fields.
|
|
String ha1;
|
|
String nonce;
|
|
String algorithm;
|
|
String qop;
|
|
int nonceCount;
|
|
|
|
_Credentials(this.credentials, this.realm) {
|
|
if (credentials.scheme == _AuthenticationScheme.DIGEST) {
|
|
// Calculate the H(A1) value once. There is no mentioning of
|
|
// username/password encoding in RFC 2617. However there is an
|
|
// open draft for adding an additional accept-charset parameter to
|
|
// the WWW-Authenticate and Proxy-Authenticate headers, see
|
|
// http://tools.ietf.org/html/draft-reschke-basicauth-enc-06. For
|
|
// now always use UTF-8 encoding.
|
|
_HttpClientDigestCredentials creds = credentials;
|
|
var hasher = new _MD5()
|
|
..add(UTF8.encode(creds.username))
|
|
..add([_CharCode.COLON])
|
|
..add(realm.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(UTF8.encode(creds.password));
|
|
ha1 = _CryptoUtils.bytesToHex(hasher.close());
|
|
}
|
|
}
|
|
|
|
_AuthenticationScheme get scheme => credentials.scheme;
|
|
|
|
void authorize(HttpClientRequest request);
|
|
}
|
|
|
|
class _SiteCredentials extends _Credentials {
|
|
Uri uri;
|
|
|
|
_SiteCredentials(this.uri, realm, _HttpClientCredentials creds)
|
|
: super(creds, realm);
|
|
|
|
bool applies(Uri uri, _AuthenticationScheme scheme) {
|
|
if (scheme != null && credentials.scheme != scheme) return false;
|
|
if (uri.host != this.uri.host) return false;
|
|
int thisPort =
|
|
this.uri.port == 0 ? HttpClient.DEFAULT_HTTP_PORT : this.uri.port;
|
|
int otherPort = uri.port == 0 ? HttpClient.DEFAULT_HTTP_PORT : uri.port;
|
|
if (otherPort != thisPort) return false;
|
|
return uri.path.startsWith(this.uri.path);
|
|
}
|
|
|
|
void authorize(HttpClientRequest request) {
|
|
// Digest credentials cannot be used without a nonce from the
|
|
// server.
|
|
if (credentials.scheme == _AuthenticationScheme.DIGEST &&
|
|
nonce == null) {
|
|
return;
|
|
}
|
|
credentials.authorize(this, request);
|
|
used = true;
|
|
}
|
|
}
|
|
|
|
|
|
class _ProxyCredentials extends _Credentials {
|
|
String host;
|
|
int port;
|
|
|
|
_ProxyCredentials(this.host,
|
|
this.port,
|
|
realm,
|
|
_HttpClientCredentials creds)
|
|
: super(creds, realm);
|
|
|
|
bool applies(_Proxy proxy, _AuthenticationScheme scheme) {
|
|
if (scheme != null && credentials.scheme != scheme) return false;
|
|
return proxy.host == host && proxy.port == port;
|
|
}
|
|
|
|
void authorize(HttpClientRequest request) {
|
|
// Digest credentials cannot be used without a nonce from the
|
|
// server.
|
|
if (credentials.scheme == _AuthenticationScheme.DIGEST &&
|
|
nonce == null) {
|
|
return;
|
|
}
|
|
credentials.authorizeProxy(this, request);
|
|
}
|
|
}
|
|
|
|
|
|
abstract class _HttpClientCredentials implements HttpClientCredentials {
|
|
_AuthenticationScheme get scheme;
|
|
void authorize(_Credentials credentials, HttpClientRequest request);
|
|
void authorizeProxy(_ProxyCredentials credentials, HttpClientRequest request);
|
|
}
|
|
|
|
|
|
class _HttpClientBasicCredentials
|
|
extends _HttpClientCredentials
|
|
implements HttpClientBasicCredentials {
|
|
String username;
|
|
String password;
|
|
|
|
_HttpClientBasicCredentials(this.username, this.password);
|
|
|
|
_AuthenticationScheme get scheme => _AuthenticationScheme.BASIC;
|
|
|
|
String authorization() {
|
|
// There is no mentioning of username/password encoding in RFC
|
|
// 2617. However there is an open draft for adding an additional
|
|
// accept-charset parameter to the WWW-Authenticate and
|
|
// Proxy-Authenticate headers, see
|
|
// http://tools.ietf.org/html/draft-reschke-basicauth-enc-06. For
|
|
// now always use UTF-8 encoding.
|
|
String auth =
|
|
_CryptoUtils.bytesToBase64(UTF8.encode("$username:$password"));
|
|
return "Basic $auth";
|
|
}
|
|
|
|
void authorize(_Credentials _, HttpClientRequest request) =>
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request.headers.set(HttpHeaders.AUTHORIZATION, authorization());
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void authorizeProxy(_ProxyCredentials _, HttpClientRequest request) =>
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request.headers.set(HttpHeaders.PROXY_AUTHORIZATION, authorization());
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}
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|
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class _HttpClientDigestCredentials
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extends _HttpClientCredentials
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implements HttpClientDigestCredentials {
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String username;
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String password;
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|
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_HttpClientDigestCredentials(this.username, this.password);
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|
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_AuthenticationScheme get scheme => _AuthenticationScheme.DIGEST;
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|
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String authorization(_Credentials credentials, _HttpClientRequest request) {
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String requestUri = request._requestUri();
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_MD5 hasher = new _MD5()
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..add(request.method.codeUnits)
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..add([_CharCode.COLON])
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..add(requestUri.codeUnits);
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var ha2 = _CryptoUtils.bytesToHex(hasher.close());
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|
|
|
String qop;
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|
String cnonce;
|
|
String nc;
|
|
var x;
|
|
hasher = new _MD5()
|
|
..add(credentials.ha1.codeUnits)
|
|
..add([_CharCode.COLON]);
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|
if (credentials.qop == "auth") {
|
|
qop = credentials.qop;
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|
cnonce = _CryptoUtils.bytesToHex(_IOCrypto.getRandomBytes(4));
|
|
++credentials.nonceCount;
|
|
nc = credentials.nonceCount.toRadixString(16);
|
|
nc = "00000000".substring(0, 8 - nc.length + 1) + nc;
|
|
hasher
|
|
..add(credentials.nonce.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(nc.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(cnonce.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(credentials.qop.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(ha2.codeUnits);
|
|
} else {
|
|
hasher
|
|
..add(credentials.nonce.codeUnits)
|
|
..add([_CharCode.COLON])
|
|
..add(ha2.codeUnits);
|
|
}
|
|
var response = _CryptoUtils.bytesToHex(hasher.close());
|
|
|
|
StringBuffer buffer = new StringBuffer()
|
|
..write('Digest ')
|
|
..write('username="$username"')
|
|
..write(', realm="${credentials.realm}"')
|
|
..write(', nonce="${credentials.nonce}"')
|
|
..write(', uri="$requestUri"')
|
|
..write(', algorithm="${credentials.algorithm}"');
|
|
if (qop == "auth") {
|
|
buffer
|
|
..write(', qop="$qop"')
|
|
..write(', cnonce="$cnonce"')
|
|
..write(', nc="$nc"');
|
|
}
|
|
buffer.write(', response="$response"');
|
|
return buffer.toString();
|
|
}
|
|
|
|
void authorize(_Credentials credentials, HttpClientRequest request) {
|
|
request.headers.set(HttpHeaders.AUTHORIZATION,
|
|
authorization(credentials, request));
|
|
}
|
|
|
|
void authorizeProxy(_ProxyCredentials credentials,
|
|
HttpClientRequest request) {
|
|
request.headers.set(HttpHeaders.PROXY_AUTHORIZATION,
|
|
authorization(credentials, request));
|
|
}
|
|
}
|
|
|
|
|
|
class _RedirectInfo implements RedirectInfo {
|
|
final int statusCode;
|
|
final String method;
|
|
final Uri location;
|
|
const _RedirectInfo(this.statusCode, this.method, this.location);
|
|
}
|
|
|
|
String _getHttpVersion() {
|
|
var version = Platform.version;
|
|
// Only include major and minor version numbers.
|
|
int index = version.indexOf('.', version.indexOf('.') + 1);
|
|
version = version.substring(0, index);
|
|
return 'Dart/$version (dart:io)';
|
|
}
|