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view src/control.c @ 223:ffb1848a39db noffle

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[svn] * src/util.c: Improve (correct) error detection when updating timestamp file. * src/content.h, src/content.c: Return Boolean success/fail from Cont_write. Also ensure cont.first isn't polluted in the event of a failed update. * src/client.c,src/control.c,src/fetch.c,src/noffle.c,src/post.c, src/pseudo.c: If Cont_write fails, don't do actions that need it to have worked. Typically, don't update first and last article numbers in group database. * src/server.c: If groupinfo.lastupdate is unreadable or corrupt, spot this and report it and give an explicit error when processing NNTP NEWGROUPS command.
author bears
date Sun, 09 Dec 2001 12:31:57 +0000
parents 24d4cd032da5
children 01755687c565
line wrap: on
line source

/*
  control.c

  $Id: control.c 342 2001-12-09 12:31:57Z bears $
*/

#if HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdio.h>
#include "common.h"
#include "content.h"
#include "control.h"
#include "database.h"
#include "group.h"
#include "itemlist.h"
#include "log.h"
#include "outgoing.h"
#include "portable.h"

int
Ctrl_cancel( const char *msgId )
{
    ItemList *refs;
    const char *ref;
    Str server;
    Bool seen = FALSE;
    int res = CANCEL_OK;
    Bool removeFromDb = TRUE;

    /* See if in outgoing and zap if so. */
    if ( Out_find( msgId, server ) )
    {
	Out_remove( server, msgId );
	Log_inf( "'%s' cancelled from outgoing queue for '%s'.\n",
		 msgId, server );
	seen = TRUE;
    }

    if ( ! Db_contains( msgId ) )
    {
	Log_inf( "Cancel: '%s' not in database.", msgId );
	return seen ? CANCEL_OK : CANCEL_NO_SUCH_MSG;
    }

    /*
      Retrieve the Xrefs, remove from each group and then
      remove from the database.
     */
    refs = new_Itl( Db_xref( msgId ), " " );
    for( ref = Itl_first( refs ); ref != NULL; ref = Itl_next( refs ) )
    {
	Str grp;
	int no;

	if ( sscanf( ref, "%s:%d", grp, &no ) != 2 )
	    break;
	
	if ( Grp_exists( grp ) )
	{
	    Cont_read( grp );
	    Cont_delete( no );
            /*
             * If we don't manage to remove the overview, leave the message
             * in the main database to avoid confusion. Yes, the message
             * will not be cancelled properly for this group but we don't
             * signal this to the calling routine.
             */
	    if ( Cont_write() )
                Log_dbg( LOG_DBG_CONTROL,
                         "Removed '%s' from group '%s'.",
                         msgId, grp );
            else
                removeFromDb = FALSE;

	    if ( ! Grp_local( grp ) && ! seen )
		res = CANCEL_NEEDS_MSG;
	}
	else
	{
	    Log_inf( "Group '%s' in Xref for '%s' not found.", grp, msgId );
	}
    }
    del_Itl( refs );
    if ( removeFromDb )
        Db_delete( msgId );
    Log_inf( "Message '%s' cancelled.", msgId );
    return res;
}