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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/dial/dial_http_server.h"
#include <vector>
#include "base/bind.h"
#include "base/debug/trace_event.h"
#include "base/string_util.h"
#include "base/stringprintf.h"
#include "net/base/ip_endpoint.h"
#include "net/base/net_errors.h"
#include "net/dial/dial_service.h"
#include "net/dial/dial_service_handler.h"
#include "net/dial/dial_system_config.h"
#include "net/server/http_server_request_info.h"
#if defined(__LB_SHELL__)
#include "lb_network_helpers.h"
#endif
namespace net {
namespace {
const char* kXmlMimeType = "text/xml; charset=\"utf-8\"";
const char* kDdXmlFormat =
"<?xml version=\"1.0\"?>"
"<root"
" xmlns=\"urn:schemas-upnp-org:device-1-0\""
" xmlns:r=\"urn:restful-tv-org:schemas:upnp-dd\">"
"<specVersion>"
"<major>1</major>"
"<minor>0</minor>"
"</specVersion>"
"<device>"
"<deviceType>urn:schemas-upnp-org:device:tvdevice:1</deviceType>"
"<friendlyName>%s</friendlyName>"
"<manufacturer>%s</manufacturer>"
"<modelName>%s</modelName>"
"<UDN>uuid:%s</UDN>"
"</device>"
"</root>";
const char* kAppsPrefix = "/apps/";
} // namespace
const int kDialHttpServerPort = 0; // Random Port.
DialHttpServer::DialHttpServer(DialService* dial_service)
: factory_("0.0.0.0", kDialHttpServerPort),
dial_service_(dial_service),
message_loop_proxy_(base::MessageLoopProxy::current()) {
DCHECK(dial_service);
DCHECK(message_loop_proxy_);
http_server_ = new HttpServer(factory_, this);
ConfigureApplicationUrl();
}
DialHttpServer::~DialHttpServer() {
// Stop() must have been called prior to destruction, to ensure the
// server was destroyed on the right thread.
DCHECK(!http_server_);
}
void DialHttpServer::Stop() {
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
http_server_ = NULL;
}
int DialHttpServer::GetLocalAddress(IPEndPoint* addr) {
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
// get the port information
int ret = http_server_->GetLocalAddress(addr);
if (ret != 0) {
return ERR_FAILED;
}
SbSocketAddress local_ip = {0};
// Now get the IPAddress of the network card.
SbSocketAddress destination = {0};
SbSocketAddress netmask = {0};
// Dial only works with IPv4.
destination.type = kSbSocketAddressTypeIpv4;
if (!SbSocketGetInterfaceAddress(&destination, &local_ip, NULL)) {
return ERR_FAILED;
}
local_ip.port = addr->port();
if (addr->FromSbSocketAddress(&local_ip)) {
return OK;
}
return ERR_FAILED;
}
void DialHttpServer::OnHttpRequest(int conn_id,
const HttpServerRequestInfo& info) {
TRACE_EVENT0("net::dial", "DialHttpServer::OnHttpRequest");
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
if (info.method == "GET" && LowerCaseEqualsASCII(info.path, "/dd.xml")) {
// If dd.xml request
SendDeviceDescriptionManifest(conn_id);
} else if (strstr(info.path.c_str(), kAppsPrefix)) {
if (info.method == "GET" && info.path.length() == strlen(kAppsPrefix)) {
// If /apps/ request, send 302 to current application.
http_server_->Send302(conn_id, application_url() + "YouTube");
} else if (!DispatchToHandler(conn_id, info)) {
// If handled, let it pass. Otherwise, send 404.
http_server_->Send404(conn_id);
}
} else {
// For all other cases, send 404.
http_server_->Send404(conn_id);
}
}
void DialHttpServer::OnClose(int conn_id) {}
void DialHttpServer::ConfigureApplicationUrl() {
IPEndPoint end_point;
if (OK != GetLocalAddress(&end_point)) {
LOG(ERROR) << "Could not get the local URL!";
return;
}
std::string addr = end_point.ToString();
DCHECK(!addr.empty());
server_url_ = base::StringPrintf("http://%s/", addr.c_str());
}
void DialHttpServer::SendDeviceDescriptionManifest(int conn_id) {
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
DialSystemConfig* system_config = DialSystemConfig::GetInstance();
#if defined(__LB_SHELL__FOR_RELEASE__)
const char* friendly_name = system_config->friendly_name();
#else
// For non-Gold builds, append the IP to the friendly name
// to help differentiate the devices.
std::string friendly_name_str = system_config->friendly_name();
IPEndPoint end_point;
if (OK == GetLocalAddress(&end_point)) {
friendly_name_str += " ";
friendly_name_str += end_point.ToStringWithoutPort();
}
const char* friendly_name = friendly_name_str.c_str();
#endif
std::string data = base::StringPrintf(
kDdXmlFormat, friendly_name, system_config->manufacturer_name(),
system_config->model_name(), system_config->model_uuid());
std::vector<std::string> headers;
headers.push_back(
base::StringPrintf("Application-URL: %s", application_url().c_str()));
http_server_->Send(conn_id, HTTP_OK, data, kXmlMimeType, headers);
}
bool DialHttpServer::DispatchToHandler(int conn_id,
const HttpServerRequestInfo& info) {
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
// See if DialService has a handler for this request.
TRACE_EVENT0("net::dial", __FUNCTION__);
std::string handler_path;
scoped_refptr<DialServiceHandler> handler =
dial_service_->GetHandler(info.path, &handler_path);
if (handler == NULL) {
return false;
}
handler->HandleRequest(
handler_path, info,
base::Bind(&DialHttpServer::OnReceivedResponse, this, conn_id));
return true;
}
void DialHttpServer::OnReceivedResponse(
int conn_id,
scoped_ptr<HttpServerResponseInfo> response) {
if (message_loop_proxy_ != base::MessageLoopProxy::current()) {
message_loop_proxy_->PostTask(
FROM_HERE,
base::Bind(&DialHttpServer::OnReceivedResponse, this,
conn_id, base::Passed(&response)));
return;
}
DCHECK_EQ(message_loop_proxy_, base::MessageLoopProxy::current());
TRACE_EVENT0("net::dial", __FUNCTION__);
if (response) {
http_server_->Send(conn_id,
static_cast<HttpStatusCode>(response->response_code),
response->body,
response->mime_type,
response->headers);
} else {
http_server_->Send404(conn_id);
}
}
} // namespace net