#include <httpd.h>
#include <http_protocol.h>
#include "nsd.h"

void Ns_ConnSetRequiredHeaders (Ns_Conn *conn, char *content_type, int len)
{
    if (len > 0) ap_set_content_length (conn, len);
    if (content_type != NULL) conn->content_type = content_type;
}

void Ns_ConnFlushHeaders (Ns_Conn *conn, int status)
{
    if (!conn->sent_bodyct) ap_send_http_header (conn);
}

int Ns_WriteConn (Ns_Conn *conn, char *data, int len)
{
    int nwr = 0;
    
    do {
	nwr = ap_rwrite (data, len, conn);
	data += nwr; len -= nwr;
    } while (nwr >= 0 && len > 0);
    
    return (len == 0) ? NS_OK : NS_ERROR;
}

int Ns_ConnSendFd (request_rec *r, int fd, int nbytes)
{
    BUFF *b = ap_bcreate (r->pool, 0);
    ap_bpushfd (b, fd, fd);
    ap_send_fb_length (b, r, nbytes);

    if (r->connection->aborted) return NS_ERROR;
    return NS_OK;
}

int Ns_ConnReturnData (Ns_Conn *conn, int status, char *stuff, int len,
		       char *content_type)
{
    /* XXX: Should check for HEAD here */
    Ns_ConnSetRequiredHeaders (conn, content_type, len);
    Ns_ConnFlushHeaders (conn, status);
    Ns_WriteConn (conn, stuff, len);
    return NS_OK;		/* Should do something else... */
}

#define MSG500 "Internal server error"

int Ns_ConnReturnInternalError (Ns_Conn *conn)
{
    Ns_ConnReturnData (conn, 500, MSG500, strlen (MSG500), "text/html");
    return NS_OK;
}