void WebProcessor::Dispatch()
{
if (*m_szUrl != '/')
{
SendErrorResponse(ERR_HTTP_BAD_REQUEST);
return;
}
if (XmlRpcProcessor::IsRpcRequest(m_szUrl))
{
XmlRpcProcessor processor;
processor.SetRequest(m_szRequest);
processor.SetHttpMethod(m_eHttpMethod == hmGet ? XmlRpcProcessor::hmGet : XmlRpcProcessor::hmPost);
processor.SetUserAccess((XmlRpcProcessor::EUserAccess)m_eUserAccess);
processor.SetUrl(m_szUrl);
processor.Execute();
SendBodyResponse(processor.GetResponse(), strlen(processor.GetResponse()), processor.GetContentType());
return;
}
if (Util::EmptyStr(g_pOptions->GetWebDir()))
{
SendErrorResponse(ERR_HTTP_SERVICE_UNAVAILABLE);
return;
}
if (m_eHttpMethod != hmGet)
{
SendErrorResponse(ERR_HTTP_BAD_REQUEST);
return;
}
// for security reasons we allow only characters "0..9 A..Z a..z . - _ /" in the URLs
// we also don't allow ".." in the URLs
for (char *p = m_szUrl; *p; p++)
{
if (!((*p >= '0' && *p <= '9') || (*p >= 'A' && *p <= 'Z') || (*p >= 'a' && *p <= 'z') ||
*p == '.' || *p == '-' || *p == '_' || *p == '/') || (*p == '.' && p[1] == '.'))
{
SendErrorResponse(ERR_HTTP_NOT_FOUND);
return;
}
}
const char *szDefRes = "";
if (m_szUrl[strlen(m_szUrl)-1] == '/')
{
// default file in directory (if not specified) is "index.html"
szDefRes = "index.html";
}
char disk_filename[1024];
snprintf(disk_filename, sizeof(disk_filename), "%s%s%s", g_pOptions->GetWebDir(), m_szUrl + 1, szDefRes);
disk_filename[sizeof(disk_filename)-1] = '\0';
SendFileResponse(disk_filename);
}
void *serving_thread(void *argp)
{
char buffer[BUFSIZE];
char *clientip,*clientport;
char *type,*data=NULL;
int rval;
int err;
char *filename,*md5sum="xxx",*filesize="12324";
int socket = *(int*)argp;
fileptr tempnode;
FILE *fp;
char prints[45];
printf("in thread:%d\n",socket);
sprintf(prints,"../serverLog.%u",(unsigned int)pthread_self());
if ( (fp = fopen(prints,"wb")) == NULL )
{
perror("fopen");
return NULL;
}
if (err=pthread_detach (pthread_self ()))
{
// Detach thread
perror2("pthread_detach ",err);
return NULL;
}
////////////////////////////////////////////////////////////////
if ((rval=myread(socket, buffer, BUFSIZE)) <= 0)
{
perror("read");
return NULL;
}
if ( GetType(buffer,fp) == JOINREQUEST)
{
parse_JoinRequest(buffer,&clientip,&clientport);
JoinResponse(buffer);
fprintf(fp,"JoinResponse to client with ip: %s\n",clientip);
if(mywrite(socket,buffer,BUFSIZE) <= 0 )
{
perror("write");
return NULL;
}
}
while (runflag)
{
///Ask FileList///
int rval;
if ( (rval=myread(socket, buffer , BUFSIZE)) < 0)
{
perror("read");
break;
}
//an to socket exei kleisei
else if ( rval == 0 )
{
close(socket);
break;
}
else if (GetType(buffer,fp) == ASKFILELIST)
{
//if (err = pthread_mutex_lock(&serverlist_mux) ){
// perror2(" pthread_mutex_lock ",err ); exit(1); }
fprintf(fp,"upadate server's list\n");
initialize("./",&metadata);
printf("initialization:\n");
printfile(metadata);
//chekarw ti lista me ta arxeia pou diatiro kai gia kathe komvo tha ftiaxno 2 orismata pou tou
//antistixoun filename kai md5 na mi ksexasw teleuteoorisma NULL
FileList(buffer,metadata);
fprintf(fp,"Send FileList to client with ip: %s\n",clientip);
//if (err = pthread_mutex_unlock(&serverlist_mux) ){
// perror2(" pthread_mutex_unlock ",err ); exit(1); }
if(mywrite(socket,buffer,BUFSIZE) <= 0 )
{
perror("write");
break;
}
}
///AskFile///
else if (GetType(buffer,fp) == ASKFILE)
{
parse_AskFile(buffer,&filename);
fprintf(fp,"client with ip: %s asked for file:%s\n",clientip,filename);
//lock list gia anazitisi tou arxeiou
if (err = pthread_mutex_lock(&serverlist_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
tempnode=filenode(metadata,filename,NULL);
if (err = pthread_mutex_unlock(&serverlist_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
AskFileResponse(buffer,filename,myip,myport);
fprintf(fp,"server is going to send the file to client \n");
if(mywrite(socket,buffer,BUFSIZE) <= 0 )
{
perror("write");
break;
}
}
///GetFile///
else if (GetType(buffer,fp) == GETFILE)
{
parse_GetFile(buffer,&filename,&md5sum);
//stelnei to arxeio pou tou zita kai sti lista tou oti autos o client exei pleon to arxeio
//lock list gia na ton prosthesei sti lista
GetFileResponse(socket,filename,md5sum);
if (err = pthread_mutex_lock(&serverlist_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
tempnode=filenode(metadata,filename,md5sum);
add_peer(&tempnode,clientip,clientport);
if (err = pthread_mutex_unlock(&serverlist_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
fprintf(fp,"send File %s to client with ip: %s\n",filename,clientip);
}
///SendFile
else if (GetType(buffer,fp) == SENDFILE)
{
parse_SendFile(buffer,&filename,&md5sum,&filesize,socket);
//lock list gia na prosthesei to arxeio
if (err = pthread_mutex_lock(&serverlist_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
add_file(&metadata,filename,md5sum);
tempnode=filenode(metadata,filename,md5sum);
add_peer(&tempnode,clientip,clientport);
if (err = pthread_mutex_unlock(&serverlist_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
SendFileResponse(buffer,filename,md5sum);
fprintf(fp,"new File %s from client with ip: %s\n",filename,clientip);
if(mywrite(socket,buffer,BUFSIZE) <= 0 )
{
perror("write");
break;
}
}
///DeleteFile
else if (GetType(buffer,fp) == DELETEFILE)
{
printf("DeleteFile\n");
parse_DeleteFile(buffer,&filename,&md5sum);
fprintf(fp,"File to delete: %s \n",filename);
//lock list mux
if (err = pthread_mutex_lock(&serverlist_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
tempnode=filenode(metadata,filename,NULL);
if (err = pthread_mutex_unlock(&serverlist_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
//lock file mux
if (err = pthread_mutex_lock(&tempnode->file_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
if( remove(filename) != 0 )
perror( "Error deleting file" );
else
printf("File %s successfully deleted\n",filename);
if (err = pthread_mutex_unlock(&tempnode->file_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
//lock list mux
if (err = pthread_mutex_lock(&serverlist_mux) ){
perror2(" pthread_mutex_lock ",err ); exit(1); }
delete_file(&metadata,filename,md5sum);
if (err = pthread_mutex_unlock(&serverlist_mux) ){
perror2(" pthread_mutex_unlock ",err ); exit(1); }
DeleteFileResponse(buffer,filename,md5sum);
fprintf(fp,"file deleted %s\n",filename);
if(mywrite(socket,buffer,BUFSIZE) <= 0 )
{
perror("write");
break;
}
}
}
close(socket);
fprintf(fp,"Closing connection.\n");
fclose(fp);
free(argp);
}
