void DH_AbortTransfer(DH_TransferStatus transfer_status_handle)
{
sem_wait(&(transfer_status_handle->syncLock));
if(transfer_status_handle->RequestToken != NULL)
{
transfer_status_handle->Reserved4 = 1;
}
sem_post(&(transfer_status_handle->syncLock));
if(transfer_status_handle->ServerSession!=NULL)
{
if(transfer_status_handle->SessionFlag!=0)
{
ILibWebServer_Send_Raw(transfer_status_handle->ServerSession,"HTTP/1.1 500 Server Abort\r\n\r\n",29,ILibAsyncSocket_MemoryOwnership_STATIC,1);
}
ILibWebServer_DisconnectSession(transfer_status_handle->ServerSession);
}
}
DH_TransferStatus DHS_SavePostToLocalFile(struct ILibWebServer_Session *session, ILibThreadPool pool, struct packetheader *header, const char *file_name, int append_flag, void *user_obj, DHS_OnResponseDone callback_response)
{
DH_TransferStatus RetVal = NULL;
char *hdr_field = NULL;
int temp = 0;
FILE *f;
struct DH_Data *data = NULL;
int Start,End,TotalLength;
int needClose = 0;
//
// Check the append flag
//
if(append_flag==0 && ILibGetHeaderLine(header,"content-range",13)!=NULL)
{
ILibWebClient_Parse_ContentRange(ILibGetHeaderLine(header,"content-range",13),&Start,&End,&TotalLength);
if(Start!=0)
{
//
// append_flag indicates overwrite, but the header's indicate partial content
// this is not allowed
//
if(ILibGetHeaderLine(header,"Expect",6)==NULL)
{
needClose = 1;
}
ILibWebServer_Send_Raw(session,"HTTP/1.1 406 Not Acceptable\r\n\r\n",31,ILibAsyncSocket_MemoryOwnership_STATIC,1);
if(needClose!=0)
{
// If the client did not send "Expect 100 Continue", then the request body may already be in transit, so we must close the socket
ILibWebServer_DisconnectSession(session);
}
return(NULL);
}
}
if(append_flag==0)
{
f = fopen(file_name,"wb");
}
else
{
f = fopen(file_name,"r+b");
}
if(f==NULL)
{
//
// Error
//
if(ILibGetHeaderLine(header,"Expect",6)==NULL)
{
needClose = 1;
}
ILibWebServer_Send_Raw(session,"HTTP/1.1 404 File not found\r\n\r\n",31,ILibAsyncSocket_MemoryOwnership_STATIC,1);
if(needClose!=0)
{
// If the client did not send "Expect 100 Continue", then the request body may already be in transit, so we must close the socket
ILibWebServer_DisconnectSession(session);
}
return(NULL);
}
data = (struct DH_Data*)malloc(sizeof(struct DH_Data));
memset(data,0,sizeof(struct DH_Data));
data->callback_response = callback_response;
data->f = f;
data->header = header;
data->session = session;
data->pool = pool;
data->OriginalReceivePtr = session->OnReceive;
data->user_object = user_obj;
RetVal = data->TransferStatus = DH_CreateNewTransferStatus();
RetVal->ServerSession = session;
RetVal->SessionFlag = 1;
ILibWebServer_OverrideReceiveHandler(session,&DHS_OnReceive_SavePostToLocalFile);
session->User3 = data;
session->OnDisconnect = &DHS_OnDisconnect;
//
// Check to see if we need to advance the file pointer
//
if(append_flag!=0)
{
hdr_field = ILibGetHeaderLine(header,"content-range",13);
if(hdr_field==NULL)
{
//
// Just append to the end of the file
//
fseek(f,0,SEEK_END);
}
else
{
//
// Advance the file pointer the specified amount
//
int SourceFileLength = 0;
ILibWebClient_Parse_ContentRange(hdr_field,&Start,&End,&TotalLength);
if(Start==-1 && End==-1 && TotalLength==-1)
{
// Invalid Range
ILibWebServer_Send_Raw(session,"HTTP/1.1 400 Bad Request\r\n\r\n",28,ILibAsyncSocket_MemoryOwnership_STATIC,1);
if(ILibGetHeaderLine(header,"Expect",6)==NULL)
{
// If the client did not send "Expect 100 Continue", then the request body may already be in transit, so we must close the socket
ILibWebServer_DisconnectSession(session);
}
return(NULL);
}
else
{
// Valid Range
fseek(f,0,SEEK_END);
SourceFileLength = (int)ftell(f);
if(SourceFileLength != Start)
{
ILibWebServer_Send_Raw(session,"HTTP/1.1 409 Conflict\r\n\r\n",25,ILibAsyncSocket_MemoryOwnership_STATIC,1);
if(ILibGetHeaderLine(header,"Expect",6)==NULL)
{
// If the client did not send "Expect 100 Continue", then the request body may already be in transit, so we must close the socket
ILibWebServer_DisconnectSession(session);
}
return(NULL);
}
}
}
}
if(session->done!=0)
{
//
// All the data is here, so OnReceive won't be called anymore
//
DHS_OnReceive_SavePostToLocalFile(session,0,header,session->buffer,&temp,session->bufferLength,session->done);
}
else
{
hdr_field = ILibGetHeaderLine(header,"Content-Length",14);
if(hdr_field!=NULL)
{
data->TransferStatus->TotalBytesToBeReceived = atol(hdr_field);
}
//
// Check to see if we are supposed to send a 100 Continue response
//
hdr_field = ILibGetHeaderLine(header,"expect",6);
if(hdr_field != NULL && strcasecmp(hdr_field,"100-continue")==0)
{
//
// Send 100-Continue
//
ILibWebServer_Send_Raw(session,"HTTP/1.1 100 Continue\r\n\r\n",25,ILibAsyncSocket_MemoryOwnership_STATIC,0);
}
else if(hdr_field != NULL)
{
//
// We don't recognize the expectation
//
ILibWebServer_Send_Raw(session,"HTTP/1.1 417 Expectation Failed\r\n\r\n",35,ILibAsyncSocket_MemoryOwnership_STATIC,1);
if(ILibGetHeaderLine(header,"Expect",6)==NULL)
{
// If the client did not send "Expect 100 Continue", then the request body may already be in transit, so we must close the socket
ILibWebServer_DisconnectSession(session);
}
RetVal = NULL;
}
}
return(RetVal);
}
