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-rw-r--r--Plugins/jingle/libjingle/talk/base/autodetectproxy.cc178
1 files changed, 178 insertions, 0 deletions
diff --git a/Plugins/jingle/libjingle/talk/base/autodetectproxy.cc b/Plugins/jingle/libjingle/talk/base/autodetectproxy.cc
new file mode 100644
index 0000000..3b8e6f6
--- /dev/null
+++ b/Plugins/jingle/libjingle/talk/base/autodetectproxy.cc
@@ -0,0 +1,178 @@
+/*
+ * libjingle
+ * Copyright 2004--2006, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "talk/base/autodetectproxy.h"
+#include "talk/base/httpcommon.h"
+//#include "talk/xmpp/xmppclientsettings.h"
+#include "talk/base/proxydetect.h"
+
+using namespace talk_base;
+
+enum { MSG_TIMEOUT = SignalThread::ST_MSG_FIRST_AVAILABLE };
+
+const talk_base::ProxyType TEST_ORDER[] = {
+ talk_base::PROXY_HTTPS, /*talk_base::PROXY_SOCKS5,*/ talk_base::PROXY_UNKNOWN
+};
+
+AutoDetectProxy::AutoDetectProxy(const std::string& user_agent)
+: agent_(user_agent), socket_(NULL), next_(0)
+{
+}
+
+AutoDetectProxy::~AutoDetectProxy() {
+ delete socket_;
+}
+
+void AutoDetectProxy::DoWork() {
+ if (!server_url_.empty()) {
+ LOG(LS_INFO) << "GetProxySettingsForUrl(" << server_url_ << ") - start";
+ GetProxySettingsForUrl(agent_.c_str(), server_url_.c_str(), proxy_, true);
+ LOG(LS_INFO) << "GetProxySettingsForUrl - stop";
+ }
+ talk_base::Url<char> url(proxy_.address.IPAsString());
+ if (url.valid()) {
+ LOG(LS_WARNING) << "AutoDetectProxy removing http prefix on proxy host";
+ proxy_.address.SetIP(url.server());
+ }
+ if (proxy_.type == talk_base::PROXY_UNKNOWN) {
+ //LOG(LS_INFO) << "Proxy classification start";
+ Next();
+ // Process I/O until Stop()
+ Thread::Current()->ProcessMessages(kForever);
+ }
+}
+
+void AutoDetectProxy::OnMessage(Message *msg) {
+ if (MSG_TIMEOUT == msg->message_id) {
+ OnCloseEvent(socket_, ETIMEDOUT);
+ } else {
+ SignalThread::OnMessage(msg);
+ }
+}
+
+void AutoDetectProxy::Next() {
+ if (TEST_ORDER[next_] >= talk_base::PROXY_UNKNOWN) {
+ Complete(talk_base::PROXY_UNKNOWN);
+ return;
+ }
+
+ LOG(LS_VERBOSE) << "AutoDetectProxy connecting to "
+ << proxy_.address.ToString();
+
+ if (socket_) {
+ Thread::Current()->Clear(this, MSG_TIMEOUT);
+ socket_->Close();
+ Thread::Current()->Dispose(socket_);
+ socket_ = NULL;
+ }
+
+ socket_ = Thread::Current()->socketserver()->CreateAsyncSocket(SOCK_STREAM);
+ socket_->SignalConnectEvent.connect(this, &AutoDetectProxy::OnConnectEvent);
+ socket_->SignalReadEvent.connect(this, &AutoDetectProxy::OnReadEvent);
+ socket_->SignalCloseEvent.connect(this, &AutoDetectProxy::OnCloseEvent);
+ socket_->Connect(proxy_.address);
+
+ // Timeout after 2 seconds
+ Thread::Current()->PostDelayed(2000, this, MSG_TIMEOUT);
+}
+
+void AutoDetectProxy::Complete(talk_base::ProxyType type) {
+ Thread::Current()->Clear(this, MSG_TIMEOUT);
+ socket_->Close();
+
+ proxy_.type = type;
+ talk_base::LoggingSeverity sev
+ = (proxy_.type == talk_base::PROXY_UNKNOWN)
+ ? talk_base::LS_ERROR : talk_base::LS_VERBOSE;
+ LOG_V(sev) << "AutoDetectProxy detected " << proxy_.address.ToString()
+ << " as type " << proxy_.type;
+
+ Thread::Current()->MessageQueue::Stop();
+}
+
+void AutoDetectProxy::OnConnectEvent(talk_base::AsyncSocket * socket) {
+ std::string probe;
+
+ switch (TEST_ORDER[next_]) {
+ case talk_base::PROXY_HTTPS:
+ probe.assign("\005\001"
+ "CONNECT www.google.com:443 HTTP/1.0\r\n"
+ "User-Agent: ");
+ probe.append(agent_);
+ probe.append("\r\n"
+ "Host: www.google.com\r\n"
+ "Content-Length: 0\r\n"
+ "Proxy-Connection: Keep-Alive\r\n"
+ "\r\n");
+ //probe = "CONNECT www.google.com:443 HTTP/1.0\r\n\r\n";
+ break;
+ case talk_base::PROXY_SOCKS5:
+ probe.assign("\005\001\000", 3);
+ break;
+ }
+
+ LOG(LS_VERBOSE) << "AutoDetectProxy probing type " << TEST_ORDER[next_]
+ << " sending " << probe.size() << " bytes";
+ socket_->Send(probe.data(), probe.size());
+}
+
+void AutoDetectProxy::OnReadEvent(talk_base::AsyncSocket * socket) {
+ char data[257];
+ int len = socket_->Recv(data, 256);
+ if (len > 0) {
+ data[len] = 0;
+ LOG(LS_VERBOSE) << "AutoDetectProxy read " << len << " bytes";
+ }
+
+ switch (TEST_ORDER[next_]) {
+ case talk_base::PROXY_HTTPS:
+ if ((len >= 2) && (data[0] == '\x05')) {
+ Complete(talk_base::PROXY_SOCKS5);
+ return;
+ }
+ if ((len >= 5) && (strncmp(data, "HTTP/", 5) == 0)) {
+ Complete(talk_base::PROXY_HTTPS);
+ return;
+ }
+ break;
+ case talk_base::PROXY_SOCKS5:
+ if ((len >= 2) && (data[0] == '\x05')) {
+ Complete(talk_base::PROXY_SOCKS5);
+ return;
+ }
+ break;
+ }
+
+ ++next_;
+ Next();
+}
+
+void AutoDetectProxy::OnCloseEvent(talk_base::AsyncSocket * socket, int error) {
+ LOG(LS_VERBOSE) << "AutoDetectProxy closed with error: " << error;
+ ++next_;
+ Next();
+}