void configure(){
setLoggingLevelEnabled(LOGGING_LEVEL_DEBUG);
setVdaRunningStatus(TRUE);
setGlobalHeap( createHeap(1024) );
setupConfiguration();
if (!isVdaOfflineMode()) {
initializeWinsock();
initializeKssConnection();
}
if(isVdaAvailableCache())
initializeCache();
initializeDisk();
}
/* Connect to a host on a certain port number. Throws HTTPClientException.
webpage: required format "www.google.com/"
port: default 80. port hosting the web server
webpageHtml: new pointer to webpage's html
*/
void HTTPClient::httpRequestWebpage(const char* webpage, int port, char** returnedWebpageHtml)
{
char* httpGetText = "GET ";
char* httpHostText = " HTTP/1.1\r\nHost: ";
char* httpReturnText = "\r\n\r\n";
char* webpageHost = NULL;
char* webpageResource = NULL;
char* httpRequest = NULL;
char* tempReturnedWebpageHtml = NULL;
int resourceIndex = -1;
int htmlDocumentSize = 0;
int httpRequestSize = 0;
//Delete previously stored html data
if (*returnedWebpageHtml)
{
delete[] * returnedWebpageHtml;
*returnedWebpageHtml = NULL;
}
//Initialize Winsock 2.2
if (!initializeWinsock())
{
throw HTTPClientException("httpRequestWebpage(const char*, int, char**)", "Failed to initialize Winsock.\n");
}
//cout << "Full URL: '" << webpage << "' Len: " << strlen(webpage) << "'.\n";
//Find first '/' to indicate resource
for (size_t i = 0; i < strlen(webpage); i++){
if (webpage[i] == '/'){
resourceIndex = i;
//cout << "Found resource index: " << i << endl;
break;
}
}
//If failed to find resource
if (resourceIndex == -1)
throw HTTPClientException("httpRequestWebpage(const char*, int, char**)", "Cannot find /resource in URL.\n");
//Set host
webpageHost = new char[resourceIndex + 1];
strncpy_s(webpageHost, resourceIndex + 1, webpage, resourceIndex);
//cout << "Host: '" << webpageHost << "' Len: " << strlen(webpageHost) << endl;
//Set resource
webpageResource = new char[strlen(webpage) - resourceIndex + 1];
strncpy_s(webpageResource, strlen(webpage) - resourceIndex + 1, webpage + resourceIndex, strlen(webpage) - resourceIndex);
//cout << "Resource: '" << webpageResource << "' Len: " << strlen(webpageResource) << endl;
//Connect to web server
if (!connectToWebServer(webpageHost, port)){
cleanup(webpageHost, webpageResource, httpRequest, tempReturnedWebpageHtml);
throw HTTPClientException("httpRequestWebpage(const char*, int, char**)", "Failed to connect.\n");
}
//Build HTTP request
httpRequestSize = strlen(httpGetText) + strlen(webpageResource) + strlen(httpHostText) + strlen(webpageHost) + strlen(httpReturnText) + 1;
httpRequest = new char[httpRequestSize];
strcpy(httpRequest, httpGetText);
strcpy(httpRequest + strlen(httpGetText), webpageResource);
strcpy(httpRequest + strlen(httpGetText) + strlen(webpageResource), httpHostText);
strcpy(httpRequest + strlen(httpGetText) + strlen(webpageResource) + strlen(httpHostText), webpageHost);
strcpy(httpRequest + strlen(httpGetText) + strlen(webpageResource) + strlen(httpHostText) + strlen(webpageHost), httpReturnText);
//Send HTTP request
if (!sendHttpRequest(httpRequest))
{
cleanup(webpageHost, webpageResource, httpRequest, tempReturnedWebpageHtml);
throw HTTPClientException("httpRequestWebpage(const char*, int, char**)", "Failed to send() HTTP request.\n");
}
//Allocate memory for html document
tempReturnedWebpageHtml = new char[MAXIMUM_WEBPAGE_LENGTH];
cout << "Start receive()...\n";
//Recieve HTTP response
if (!receiveHttpResponse(tempReturnedWebpageHtml, htmlDocumentSize)){
cleanup(webpageHost, webpageResource, httpRequest, tempReturnedWebpageHtml);
throw HTTPClientException("httpRequestWebpage(const char*, int, char**)", "Failed to receive() HTTP request.\n");
}
cout << "End receive()...\n";
//Copy temporary buffer to returned buffer
*returnedWebpageHtml = new char[htmlDocumentSize + 2];
strcpy(*returnedWebpageHtml, tempReturnedWebpageHtml);
//printf("Document size: %d \n", htmlDocumentSize);
//Reset server config, necessary for multiple http requests to different hosts from the same object
resetServerConfig();
//Delete memory allocated in method
cleanup(webpageHost, webpageResource, httpRequest, tempReturnedWebpageHtml);
}
