void
tr_magnetCreateMetainfo( const tr_magnet_info * info, tr_benc * top )
{
int i;
tr_benc * d;
tr_bencInitDict( top, 4 );
/* announce list */
if( info->trackerCount == 1 )
tr_bencDictAddStr( top, "announce", info->trackers[0] );
else {
tr_benc * trackers = tr_bencDictAddList( top, "announce-list", info->trackerCount );
for( i=0; i<info->trackerCount; ++i )
tr_bencListAddStr( tr_bencListAddList( trackers, 1 ), info->trackers[i] );
}
/* webseeds */
if( info->webseedCount > 0 ) {
tr_benc * urls = tr_bencDictAddList( top, "url-list", info->webseedCount );
for( i=0; i<info->webseedCount; ++i )
tr_bencListAddStr( urls, info->webseeds[i] );
}
/* nonstandard keys */
d = tr_bencDictAddDict( top, "magnet-info", 2 );
tr_bencDictAddRaw( d, "info_hash", info->hash, 20 );
if( info->displayName != NULL )
tr_bencDictAddStr( d, "display-name", info->displayName );
}
static bool
addURL (tr_benc * metainfo, const char * url)
{
const char * announce = NULL;
tr_benc * announce_list = NULL;
bool changed = false;
const bool had_announce = tr_bencDictFindStr (metainfo, "announce", &announce);
const bool had_announce_list = tr_bencDictFindList (metainfo, "announce-list", &announce_list);
if (!had_announce && !had_announce_list)
{
/* this new tracker is the only one, so add it to "announce"... */
printf ("\tAdded \"%s\" in \"announce\"\n", url);
tr_bencDictAddStr (metainfo, "announce", url);
changed = true;
}
else
{
if (!had_announce_list)
{
announce_list = tr_bencDictAddList (metainfo, "announce-list", 2);
if (had_announce)
{
/* we're moving from an 'announce' to an 'announce-list',
* so copy the old announce URL to the list */
tr_benc * tier = tr_bencListAddList (announce_list, 1);
tr_bencListAddStr (tier, announce);
changed = true;
}
}
/* If the user-specified URL isn't in the announce list yet, add it */
if (!announce_list_has_url (announce_list, url))
{
tr_benc * tier = tr_bencListAddList (announce_list, 1);
tr_bencListAddStr (tier, url);
printf ("\tAdded \"%s\" to \"announce-list\" tier %zu\n", url, tr_bencListSize (announce_list));
changed = true;
}
}
return changed;
}
static tr_bool
addURL( tr_benc * metainfo, const char * url )
{
const char * str;
tr_benc * announce_list;
tr_bool changed = FALSE;
tr_bool match = FALSE;
/* maybe add it to "announce" */
if( !tr_bencDictFindStr( metainfo, "announce", &str ) )
{
printf( "\tAdded \"%s\" in \"announce\"\n", url );
tr_bencDictAddStr( metainfo, "announce", url );
changed = TRUE;
}
/* see if it's already in announce-list */
if( tr_bencDictFindList( metainfo, "announce-list", &announce_list ) ) {
tr_benc * tier;
int tierCount = 0;
while(( tier = tr_bencListChild( announce_list, tierCount++ ))) {
tr_benc * node;
int nodeCount = 0;
while(( node = tr_bencListChild( tier, nodeCount++ )))
if( tr_bencGetStr( node, &str ) && !strcmp( str, url ) )
match = TRUE;
}
}
/* if it's not in announce-list, add it now */
if( !match )
{
tr_benc * tier;
if( !tr_bencDictFindList( metainfo, "announce-list", &announce_list ) )
announce_list = tr_bencDictAddList( metainfo, "announce-list", 1 );
tier = tr_bencListAddList( announce_list, 1 );
tr_bencListAddStr( tier, url );
printf( "\tAdded \"%s\" to \"announce-list\" tier %zu\n", url, tr_bencListSize( announce_list ) );
changed = TRUE;
}
return changed;
}
static void
saveProgress( tr_benc * dict, tr_torrent * tor )
{
tr_benc * l;
tr_benc * prog;
tr_file_index_t fi;
const tr_info * inf = tr_torrentInfo( tor );
const time_t now = tr_time( );
prog = tr_bencDictAddDict( dict, KEY_PROGRESS, 3 );
/* add the file/piece check timestamps... */
l = tr_bencDictAddList( prog, KEY_PROGRESS_CHECKTIME, inf->fileCount );
for( fi=0; fi<inf->fileCount; ++fi )
{
const tr_piece * p;
const tr_piece * pend;
time_t oldest_nonzero = now;
time_t newest = 0;
tr_bool has_zero = FALSE;
const time_t mtime = tr_torrentGetFileMTime( tor, fi );
const tr_file * f = &inf->files[fi];
/* get the oldest and newest nonzero timestamps for pieces in this file */
for( p=&inf->pieces[f->firstPiece], pend=&inf->pieces[f->lastPiece]; p!=pend; ++p )
{
if( !p->timeChecked )
has_zero = TRUE;
else if( oldest_nonzero > p->timeChecked )
oldest_nonzero = p->timeChecked;
if( newest < p->timeChecked )
newest = p->timeChecked;
}
/* If some of a file's pieces have been checked more recently than
the file's mtime, and some lest recently, then that file will
have a list containing timestamps for each piece.
However, the most common use case is that the file doesn't change
after it's downloaded. To reduce overhead in the .resume file,
only a single timestamp is saved for the file if *all* or *none*
of the pieces were tested more recently than the file's mtime. */
if( !has_zero && ( mtime <= oldest_nonzero ) ) /* all checked */
tr_bencListAddInt( l, oldest_nonzero );
else if( newest < mtime ) /* none checked */
tr_bencListAddInt( l, newest );
else { /* some are checked, some aren't... so list piece by piece */
const int offset = oldest_nonzero - 1;
tr_benc * ll = tr_bencListAddList( l, 2 + f->lastPiece - f->firstPiece );
tr_bencListAddInt( ll, offset );
for( p=&inf->pieces[f->firstPiece], pend=&inf->pieces[f->lastPiece]+1; p!=pend; ++p )
tr_bencListAddInt( ll, p->timeChecked ? p->timeChecked - offset : 0 );
}
}
/* add the progress */
if( tor->completeness == TR_SEED )
tr_bencDictAddStr( prog, KEY_PROGRESS_HAVE, "all" );
/* add the blocks bitfield */
tr_bitsetToBenc( tr_cpBlockBitset( &tor->completion ),
tr_bencDictAdd( prog, KEY_PROGRESS_BLOCKS ) );
}
