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MovieListRequest Class Reference

This class is used to request to movielist from the mediaserver (by HTTP) and write it to a file. More...

#include <MovieListRequest.hpp>

List of all members.


Public Member Functions

 MovieListRequest ()
 default constructor
 ~MovieListRequest ()
 default destructor
bool requestMovieList (const char *hostname, int port=80)
 Requests the movielist from a specified server.

Detailed Description

This class is used to request to movielist from the mediaserver (by HTTP) and write it to a file.

Also the descriptive images, which are specified in this file will be requested by HTTP and stored in a file.

Author:
Klaus Schoeffmann

Definition at line 87 of file MovieListRequest.hpp.

Member Function Documentation

bool MovieListRequest::requestMovieList (  const char *  hostname,
int  port = 80
) 
 

Requests the movielist from a specified server.

Also looks for images in this file and requests them too. Definition at line 163 of file MovieListRequest.cpp.

References Globals::getAbsoluteImagesFilePath(), and semifunc::newStrCpy().

00164 {
00165 
00166   //find out IP-Address of specified host
00167 //  hostent *host = gethostbyname(hostname);
00168 //  char *address = inet_ntoa(*(reinterpret_cast<in_addr*>(host->h_addr)));
00169 
00170   //buffer used for receiving
00171   char *buffer = new char[MAX_RECBUFFER_SIZE];
00172   char *bufferStart = buffer;
00173   uint contentLength;
00174 
00175   //send HTTP GET message for movielist
00176   ostringstream httpMsg;
00177   //httpMsg << "GET http://" << address << "/MovieList.xml HTTP/1.1\r\n\r\n"; httpMsg.flush();
00178   httpMsg << "GET /MovieList.xml HTTP/1.1\r\n\r\n"; httpMsg.flush();
00179   if ((buffer = makeHttpRequest(hostname, port, httpMsg.str(), buffer, contentLength)))
00180   {
00181 
00182     //write this content to a file, where the semiserver has access to
00183     writeToFile(Globals::getMoviesFileName(), buffer, contentLength);
00184 
00185     //search for images
00186     list<char*> imgList;
00187     char *imgStart, *imgEnd; //37
00188     while ((imgStart = strstr(buffer, "<Resource mimeType=\"image/jpeg\" ref=\"")) != NULL)
00189     {
00190       imgEnd = strstr(imgStart+strlen("<Resource mimeType=\"image/jpeg\" ref=\""), "\"");
00191       if (imgEnd != NULL)
00192       {
00193         char *foundImg = semifunc::newStrCpy(
00194                            imgStart+strlen("<Resource mimeType=\"image/jpeg\" ref=\""),
00195                            imgEnd-(imgStart+strlen("<Resource mimeType=\"image/jpeg\" ref=\"")));
00196         Globals::sdebug << "\nFound Image: " << foundImg;
00197         //add this image to the list, if not already there
00198         addIfNotExists(imgList, foundImg);
00199       }
00200       buffer = imgEnd;
00201     }
00202 
00203     //now request all images
00204     list<char*>::iterator iter = imgList.begin();
00205     while (iter != imgList.end())
00206     {
00207       char *img = *iter;
00208       ostringstream httpMsgImg;
00209       //httpMsgImg << "GET http://" << address << "/" << img << " HTTP/1.1\r\n\r\n";
00210       httpMsgImg << "GET /" << img << " HTTP/1.1\r\n\r\n";
00211       Globals::sdebug << "\n" << httpMsgImg.str().c_str();
00212       if ((buffer = makeHttpRequest(hostname, port, httpMsgImg.str(), bufferStart, contentLength)))
00213       {
00214         ostringstream filename;
00215         filename << Globals::getAbsoluteImagesFilePath() << img;
00216         writeToFile(filename.str().c_str(), buffer, contentLength);
00217       }
00218 
00219       iter++;
00220     }
00221     imgList.clear(); //clear list
00222 
00223     delete bufferStart;
00224     bufferStart = NULL;
00225     return true;
00226 
00227   }
00228 
00229 
00230   return false;
00231 }

The documentation for this class was generated from the following files: