133 lines
2.5 KiB
C++
133 lines
2.5 KiB
C++
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// Google.cpp
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// Implements a HTTP download of the google's front page using the LibEvent-based cNetwork API
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#include "Globals.h"
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#include <thread>
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#include "OSSupport/Event.h"
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#include "OSSupport/Network.h"
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#include "OSSupport/NetworkSingleton.h"
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/** Connect callbacks that send a HTTP GET request for google.com when connected. */
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class cHTTPConnectCallbacks:
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public cNetwork::cConnectCallbacks
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{
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cEvent & m_Event;
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virtual void OnConnected(cTCPLink & a_Link) override
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{
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LOGD("Connected, sending HTTP GET");
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if (!a_Link.Send("GET / HTTP/1.0\r\nHost:google.com\r\n\r\n"))
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{
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LOGWARNING("Sending HTTP GET failed");
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}
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LOGD("HTTP GET queued.");
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}
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virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override
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{
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LOGD("Error while connecting HTTP: %d (%s)", a_ErrorCode, a_ErrorMsg.c_str());
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m_Event.Set();
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}
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public:
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cHTTPConnectCallbacks(cEvent & a_Event):
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m_Event(a_Event)
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{
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}
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};
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/** cTCPLink callbacks that dump everything it received to the log. */
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class cDumpCallbacks:
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public cTCPLink::cCallbacks
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{
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cEvent & m_Event;
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cTCPLinkPtr m_Link;
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virtual void OnLinkCreated(cTCPLinkPtr a_Link) override
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{
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ASSERT(m_Link == nullptr);
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m_Link = a_Link;
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}
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virtual void OnReceivedData(const char * a_Data, size_t a_Size) override
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{
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ASSERT(m_Link != nullptr);
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// Log the incoming data size:
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AString Hex;
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CreateHexDump(Hex, a_Data, a_Size, 16);
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LOGD("Incoming data: %u bytes:\n%s", static_cast<unsigned>(a_Size), Hex.c_str());
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}
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virtual void OnRemoteClosed(void) override
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{
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ASSERT(m_Link != nullptr);
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LOGD("Remote has closed the connection.");
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m_Link.reset();
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m_Event.Set();
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}
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virtual void OnError(int a_ErrorCode, const AString & a_ErrorMsg) override
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{
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ASSERT(m_Link != nullptr);
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LOGD("Error %d (%s) in the cDumpCallbacks.", a_ErrorCode, a_ErrorMsg.c_str());
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m_Link.reset();
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m_Event.Set();
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}
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public:
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cDumpCallbacks(cEvent & a_Event):
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m_Event(a_Event)
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{
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}
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};
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static void DoTest(void)
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{
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cEvent evtFinish;
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LOGD("Network test: Connecting to google.com:80, reading front page via HTTP.");
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if (!cNetwork::Connect("google.com", 80, std::make_shared<cHTTPConnectCallbacks>(evtFinish), std::make_shared<cDumpCallbacks>(evtFinish)))
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{
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LOGWARNING("Cannot queue connection to google.com");
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abort();
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}
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LOGD("Connect request has been queued.");
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evtFinish.Wait();
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}
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int main()
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{
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cNetworkSingleton::Get().Initialise();
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DoTest();
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cNetworkSingleton::Get().Terminate();
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LOGD("Network test finished");
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return 0;
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}
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