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@ -3,17 +3,7 @@
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Some of the stuff below is stolen from Fefes example libowfat httpd.
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*/
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#include "socket.h"
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#include "io.h"
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#include "iob.h"
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#include "buffer.h"
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#include "array.h"
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#include "byte.h"
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#include "case.h"
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#include "fmt.h"
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#include "str.h"
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#include "scan.h"
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#include "ip4.h"
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/* System */
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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@ -27,23 +17,32 @@
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#include <stdio.h>
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#include <pwd.h>
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/* Libowfat */
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#include "socket.h"
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#include "io.h"
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#include "iob.h"
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#include "buffer.h"
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#include "array.h"
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#include "byte.h"
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#include "case.h"
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#include "fmt.h"
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#include "str.h"
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#include "scan.h"
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#include "ip4.h"
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/* Opentracker */
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#include "trackerlogic.h"
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#include "scan_urlencoded_query.h"
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#include "ot_stats.h"
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#include "ot_sync.h"
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#include "ot_udp.h"
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/* Globals */
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static unsigned long long ot_overall_tcp_connections = 0;
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static unsigned long long ot_overall_udp_connections = 0;
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static unsigned long long ot_overall_tcp_successfulannounces = 0;
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static unsigned long long ot_overall_udp_successfulannounces = 0;
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static unsigned long long ot_full_scrape_count = 0;
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static unsigned long long ot_full_scrape_size = 0;
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static time_t ot_start_time;
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static const size_t SUCCESS_HTTP_HEADER_LENGTH = 80;
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static const size_t SUCCESS_HTTP_SIZE_OFF = 17;
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static uint32_t g_adminip_addresses[OT_ADMINIP_MAX];
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static unsigned int g_adminip_count = 0;
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time_t ot_start_time;
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time_t g_now;
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#if defined ( WANT_BLACKLISTING ) && defined (WANT_CLOSED_TRACKER )
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@ -65,9 +64,8 @@ static char *accesslist_filename = NULL;
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#endif
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/* To always have space for error messages ;) */
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static char static_inbuf[8192];
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static char static_outbuf[8192];
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char static_inbuf[8192];
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char static_outbuf[8192];
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#define OT_MAXMULTISCRAPE_COUNT 64
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static ot_hash multiscrape_buf[OT_MAXMULTISCRAPE_COUNT];
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@ -114,7 +112,6 @@ static void handle_timeouted( void );
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static void handle_accept( const int64 serversocket );
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static void handle_read( const int64 clientsocket );
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static void handle_write( const int64 clientsocket );
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static void handle_udp4( const int64 serversocket );
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static void ot_try_bind( char ip[4], uint16 port, int is_tcp );
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@ -234,7 +231,6 @@ static void httpresponse( const int64 s, char *data _DEBUG_HTTPERROR_PARAM( size
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ot_hash *hash = NULL;
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int numwant, tmp, scanon, mode;
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unsigned short port = htons(6881);
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time_t t;
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ssize_t len;
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size_t reply_size = 0, reply_off;
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@ -347,47 +343,9 @@ LOG_TO_STDERR( "sync: %d.%d.%d.%d\n", h->ip[0], h->ip[1], h->ip[2], h->ip[3] );
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case STATS_DMEM:
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if( !( reply_size = return_memstat_for_tracker( &reply ) ) ) HTTPERROR_500;
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return sendmmapdata( s, reply, reply_size );
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case STATS_CONNS:
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t = time( NULL ) - ot_start_time;
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reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH,
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"%llu\n%llu\n%i seconds (%i hours)\nopentracker - Pretuned by german engineers, currently handling %llu connections per second.",
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ot_overall_tcp_connections+ot_overall_udp_connections, ot_overall_tcp_successfulannounces+ot_overall_udp_successfulannounces, (int)t, (int)(t / 3600), (ot_overall_tcp_connections+ot_overall_udp_connections) / ( (unsigned int)t ? (unsigned int)t : 1 ) );
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break;
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case STATS_UDP:
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t = time( NULL ) - ot_start_time;
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reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH,
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"%llu\n%llu\n%i seconds (%i hours)\nopentracker udp4 stats.",
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ot_overall_udp_connections, ot_overall_udp_successfulannounces, (int)t, (int)(t / 3600) );
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break;
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case STATS_TCP:
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t = time( NULL ) - ot_start_time;
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reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH,
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"%llu\n%llu\n%i seconds (%i hours)\nopentracker tcp4 stats.",
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ot_overall_tcp_connections, ot_overall_tcp_successfulannounces, (int)t, (int)(t / 3600) );
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break;
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default:
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case STATS_PEERS:
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/* Enough for http header + whole scrape string */
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if( !( reply_size = return_stats_for_tracker( SUCCESS_HTTP_HEADER_LENGTH + static_outbuf, mode ) ) ) HTTPERROR_500;
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break;
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case STATS_FULLSCRAPE:
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t = time( NULL ) - ot_start_time;
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reply_size = sprintf( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH,
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"%llu\n%llu\n%i seconds (%i hours)\nopentracker full scrape stats.",
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ot_full_scrape_count * 1000, ot_full_scrape_size, (int)t, (int)(t / 3600) );
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break;
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case STATS_SLASH24S:
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{
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ot_dword diff; struct timeval tv1, tv2; gettimeofday( &tv1, NULL );
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if( !( reply_size = return_stats_for_slash24s( SUCCESS_HTTP_HEADER_LENGTH + static_outbuf, 25, 16 ) ) ) HTTPERROR_500;
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gettimeofday( &tv2, NULL ); diff = ( tv2.tv_sec - tv1.tv_sec ) * 1000000 + tv2.tv_usec - tv1.tv_usec;
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reply_size += sprintf( SUCCESS_HTTP_HEADER_LENGTH + static_outbuf + reply_size, "Time taken: %u\n", diff );
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}
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// default format for now
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if( !( reply_size = return_stats_for_tracker( static_outbuf + SUCCESS_HTTP_HEADER_LENGTH, mode, 0 ) ) ) HTTPERROR_500;
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break;
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}
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break;
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@ -409,10 +367,7 @@ write( 2, debug_request, l );
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if( !( reply_size = return_fullscrape_for_tracker( &reply ) ) ) HTTPERROR_500;
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/* Stat keeping */
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ot_overall_tcp_successfulannounces++;
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ot_full_scrape_count++;
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ot_full_scrape_size += reply_size;
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stats_issue_event( EVENT_FULLSCRAPE, 1, reply_size);
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return sendmmapdata( s, reply, reply_size );
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}
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@ -460,8 +415,7 @@ UTORRENT1600_WORKAROUND:
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/* Enough for http header + whole scrape string */
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if( !( reply_size = return_tcp_scrape_for_torrent( multiscrape_buf, numwant, SUCCESS_HTTP_HEADER_LENGTH + static_outbuf ) ) ) HTTPERROR_500;
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ot_overall_tcp_successfulannounces++;
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stats_issue_event( EVENT_SCRAPE, 1, reply_size );
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break;
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/******************************
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* A N N O U N C E *
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@ -564,7 +518,7 @@ ANNOUNCE_WORKAROUND:
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torrent = add_peer_to_torrent( hash, &peer, 0 );
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if( !torrent || !( reply_size = return_peers_for_torrent( hash, numwant, SUCCESS_HTTP_HEADER_LENGTH + static_outbuf, 1 ) ) ) HTTPERROR_500;
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}
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ot_overall_tcp_successfulannounces++;
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stats_issue_event( EVENT_ANNOUNCE, 1, reply_size);
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break;
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default:
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if( ( *data == 'a' ) || ( *data == '?' ) ) goto ANNOUNCE_WORKAROUND;
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@ -702,14 +656,13 @@ static void handle_accept( const int64 serversocket ) {
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byte_zero( h, sizeof( struct http_data ) );
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memmove( h->ip, ip, sizeof( ip ) );
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++ot_overall_tcp_connections;
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stats_issue_event( EVENT_ACCEPT, 1, 0);
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/* That breaks taia encapsulation. But there is no way to take system
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time this often in FreeBSD and libowfat does not allow to set unix time */
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taia_uint( &t, 0 ); /* Clear t */
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tai_unix( &(t.sec), (g_now + OT_CLIENT_TIMEOUT) );
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io_timeout( i, t );
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}
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if( errno == EAGAIN )
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@ -731,94 +684,6 @@ static void handle_timeouted( void ) {
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}
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}
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/* UDP implementation according to http://xbtt.sourceforge.net/udp_tracker_protocol.html */
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static void handle_udp4( int64 serversocket ) {
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ot_peer peer;
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ot_torrent *torrent;
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ot_hash *hash = NULL;
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char remoteip[4];
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ot_dword *inpacket = (ot_dword*)static_inbuf;
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ot_dword *outpacket = (ot_dword*)static_outbuf;
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ot_dword numwant, left, event;
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ot_word port, remoteport;
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size_t r, r_out;
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r = socket_recv4( serversocket, static_inbuf, 8192, remoteip, &remoteport);
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ot_overall_udp_connections++;
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/* Minimum udp tracker packet size, also catches error */
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if( r < 16 )
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return;
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/* look for udp bittorrent magic id */
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if( (ntohl(inpacket[0]) != 0x00000417) || (ntohl(inpacket[1]) != 0x27101980) )
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return;
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switch( ntohl( inpacket[2] ) ) {
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case 0: /* This is a connect action */
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outpacket[0] = 0; outpacket[1] = inpacket[3];
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outpacket[2] = inpacket[0]; outpacket[3] = inpacket[1];
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socket_send4( serversocket, static_outbuf, 16, remoteip, remoteport );
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ot_overall_udp_successfulannounces++;
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break;
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case 1: /* This is an announce action */
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/* Minimum udp announce packet size */
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if( r < 98 )
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return;
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numwant = 200;
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/* We do only want to know, if it is zero */
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left = inpacket[64/4] | inpacket[68/4];
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event = ntohl( inpacket[80/4] );
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port = *(ot_word*)( static_inbuf + 96 );
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hash = (ot_hash*)( static_inbuf + 16 );
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OT_SETIP( &peer, remoteip );
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OT_SETPORT( &peer, &port );
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OT_FLAG( &peer ) = 0;
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switch( event ) {
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case 1: OT_FLAG( &peer ) |= PEER_FLAG_COMPLETED; break;
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case 3: OT_FLAG( &peer ) |= PEER_FLAG_STOPPED; break;
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default: break;
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}
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if( !left )
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OT_FLAG( &peer ) |= PEER_FLAG_SEEDING;
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outpacket[0] = htonl( 1 ); /* announce action */
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outpacket[1] = inpacket[12/4];
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if( OT_FLAG( &peer ) & PEER_FLAG_STOPPED ) /* Peer is gone. */
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r = remove_peer_from_torrent( hash, &peer, static_outbuf, 0 );
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else {
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torrent = add_peer_to_torrent( hash, &peer, 0 );
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if( !torrent )
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return; /* XXX maybe send error */
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r = 8 + return_peers_for_torrent( hash, numwant, static_outbuf + 8, 0 );
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}
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socket_send4( serversocket, static_outbuf, r, remoteip, remoteport );
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ot_overall_udp_successfulannounces++;
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break;
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case 2: /* This is a scrape action */
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outpacket[0] = htonl( 2 ); /* scrape action */
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outpacket[1] = inpacket[12/4];
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for( r_out = 0; ( r_out * 20 < r - 16) && ( r_out <= 74 ); r_out++ )
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return_udp_scrape_for_torrent( (ot_hash*)( static_inbuf + 16 + 20 * r_out ), static_outbuf + 8 + 12 * r_out );
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socket_send4( serversocket, static_outbuf, 8 + 12 * r_out, remoteip, remoteport );
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ot_overall_udp_successfulannounces++;
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break;
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}
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}
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static void server_mainloop( ) {
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time_t next_timeout_check = g_now + OT_CLIENT_TIMEOUT_CHECKINTERVAL;
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@ -892,17 +757,14 @@ void read_accesslist_file( int foo ) {
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for( i=0; i<20; ++i ) {
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int eger = 16 * scan_fromhex( static_inbuf[ 2*i ] ) + scan_fromhex( static_inbuf[ 1 + 2*i ] );
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if( eger < 0 )
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goto ignore_line;
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continue;
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infohash[i] = eger;
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}
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if( scan_fromhex( static_inbuf[ 40 ] ) >= 0 )
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goto ignore_line;
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continue;
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/* Append accesslist to accesslist vector */
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accesslist_addentry( &infohash );
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ignore_line:
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continue;
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}
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fclose( accesslist_filehandle );
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erdgeist
17 years ago