*******************************************************************************
**
** This file contains code to implement the file transfer protocol.
*/
#include "config.h"
#include "xfer.h"

#if INTERFACE
/*
** Configuration transfers occur in groups.  These are the allowed
** groupings:
*/
#define CONFIGSET_SKIN   0x000001     /* WWW interface appearance */
#define CONFIGSET_TKT    0x000002     /* Ticket configuration */
#define CONFIGSET_PROJ   0x000004     /* Project name */

#endif /* INTERFACE */

/*
** The following is a list of settings that we are willing to
** transfer.
*/
static struct {
  const char *zName;   /* Name of the configuration parameter */
  int groupMask;       /* Which config groups is it part of */
} aSafeConfig[] = {
  { "css",                   CONFIGSET_SKIN },
  { "header",                CONFIGSET_SKIN },
  { "footer",                CONFIGSET_SKIN },
  { "project-name",          CONFIGSET_PROJ },
  { "project-description",   CONFIGSET_PROJ },
  { "index-page",            CONFIGSET_SKIN },
  { "timeline-block-markup", CONFIGSET_SKIN },
  { "timeline-max-comment",  CONFIGSET_SKIN },
};

/*
** This structure holds information about the current state of either
** a client or a server that is participating in xfer.
*/
typedef struct Xfer Xfer;
struct Xfer {
  Blob *pIn;          /* Input text from the other side */

    ){
      if( disableLogin ){
        g.okRead = g.okWrite = 1;
      }else if( check_tail_hash(&xfer.aToken[2], xfer.pIn) ){
        check_login(&xfer.aToken[1], &xfer.aToken[2], &xfer.aToken[3]);
      }
    }else
    
    /*    reqconfig  NAME
    **
    ** Request a configuration value
    */
    if( blob_eq(&xfer.aToken[0], "reqconfig")
     && xfer.nToken==2
    ){
      /* TBD: Get the configuration name */
      /* Check to insure the configuration transfer is authorized */
      /* Construct the "config" message */
    }else
    
    /*    cookie TEXT
    **
    ** A cookie contains a arbitrary-length argument that is server-defined.
    ** The argument must be encoded so as not to contain any whitespace.
    ** The server can optionally send a cookie to the client.  The client
    ** might then return the same cookie back to the server on its next

  ** Always begin with a clone, pull, or push message
  */
  if( cloneFlag ){
    blob_appendf(&send, "clone\n");
    pushFlag = 0;
    pullFlag = 0;
    nMsg++;
    /* TBD: Request all transferable configuration values */
  }else if( pullFlag ){
    blob_appendf(&send, "pull %s %s\n", zSCode, zPCode);
    nMsg++;
  }
  if( pushFlag ){
    blob_appendf(&send, "push %s %s\n", zSCode, zPCode);
    nMsg++;

        if( zPCode==0 ){
          zPCode = mprintf("%b", &xfer.aToken[2]);
          db_set("project-code", zPCode, 0);
        }
        blob_appendf(&send, "clone\n");
        nMsg++;
      }else
      
      /*   config NAME SIZE \n CONTENT
      **
      ** Receive a configuration value from the server.
      */
      if( blob_eq(&xfer.aToken[0],"config") ){
        /* TBD: Extract name and content */
        /* Check to see if configuration name is authorized */
        /* Store content in the config table */
      }else

      
      /*    cookie TEXT
      **
      ** The server might include a cookie in its reply.  The client
      ** should remember this cookie and send it back to the server
      ** in its next query.
      **