mirror of
https://erdgeist.org/gitweb/opentracker
synced 2024-05-10 07:54:50 +00:00
9297967f85
Add an iterator for all torrents. It's slower but for stats it's okay. Move some stats collection stuff to the new iterator. More to come. Start a "report all stats" page. Start fixing the code to identify "busy" networks. Add the concept of hosts allowed to proxy. Add a parser for the X-Forwarded-For: HTTP header. Clean up HTTP Header handling code. (Remove some left overs of now vanished sync code).
146 lines
4.0 KiB
C
146 lines
4.0 KiB
C
/* This software was written by Dirk Engling <erdgeist@erdgeist.org>
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It is considered beerware. Prost. Skol. Cheers or whatever.
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$id$ */
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/* System */
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <signal.h>
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#include <unistd.h>
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/* Libowfat */
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#include "byte.h"
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#include "scan.h"
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#include "ip6.h"
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/* Opentracker */
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#include "trackerlogic.h"
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#include "ot_accesslist.h"
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#include "ot_vector.h"
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/* GLOBAL VARIABLES */
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#ifdef WANT_ACCESSLIST
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char *g_accesslist_filename = NULL;
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static ot_vector accesslist;
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static void accesslist_reset( void ) {
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free( accesslist.data );
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byte_zero( &accesslist, sizeof( accesslist ) );
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}
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void accesslist_deinit( void ) {
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accesslist_reset( );
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}
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static int accesslist_addentry( ot_hash infohash ) {
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int eger;
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void *insert = vector_find_or_insert( &accesslist, infohash, OT_HASH_COMPARE_SIZE, OT_HASH_COMPARE_SIZE, &eger );
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if( !insert )
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return -1;
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memcpy( insert, infohash, OT_HASH_COMPARE_SIZE );
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return 0;
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}
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/* Read initial access list */
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static void accesslist_readfile( int foo ) {
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FILE * accesslist_filehandle;
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ot_hash infohash;
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char inbuf[512];
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foo = foo;
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accesslist_filehandle = fopen( g_accesslist_filename, "r" );
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/* Free accesslist vector in trackerlogic.c*/
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accesslist_reset();
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if( accesslist_filehandle == NULL ) {
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fprintf( stderr, "Warning: Can't open accesslist file: %s (but will try to create it later, if necessary and possible).", g_accesslist_filename );
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return;
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}
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/* We do ignore anything that is not of the form "^[:xdigit:]{40}[^:xdigit:].*" */
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while( fgets( inbuf, sizeof(inbuf), accesslist_filehandle ) ) {
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int i;
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for( i=0; i<(int)sizeof(ot_hash); ++i ) {
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int eger = 16 * scan_fromhex( inbuf[ 2*i ] ) + scan_fromhex( inbuf[ 1 + 2*i ] );
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if( eger < 0 )
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continue;
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infohash[i] = eger;
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}
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if( scan_fromhex( inbuf[ 40 ] ) >= 0 )
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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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}
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fclose( accesslist_filehandle );
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}
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int accesslist_hashisvalid( ot_hash hash ) {
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int exactmatch;
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binary_search( hash, accesslist.data, accesslist.size, OT_HASH_COMPARE_SIZE, OT_HASH_COMPARE_SIZE, &exactmatch );
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#ifdef WANT_ACCESSLIST_BLACK
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exactmatch = !exactmatch;
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#endif
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return exactmatch;
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}
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void accesslist_init( ) {
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byte_zero( &accesslist, sizeof( accesslist ) );
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/* Passing "0" since read_blacklist_file also is SIGHUP handler */
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if( g_accesslist_filename ) {
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accesslist_readfile( 0 );
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signal( SIGHUP, accesslist_readfile );
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}
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}
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#endif
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static ot_ip6 g_adminip_addresses[OT_ADMINIP_MAX];
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static ot_permissions g_adminip_permissions[OT_ADMINIP_MAX];
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static unsigned int g_adminip_count = 0;
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int accesslist_blessip( ot_ip6 ip, ot_permissions permissions ) {
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if( g_adminip_count >= OT_ADMINIP_MAX )
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return -1;
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memcpy(g_adminip_addresses + g_adminip_count,ip,sizeof(ot_ip6));
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g_adminip_permissions[ g_adminip_count++ ] = permissions;
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#ifdef _DEBUG
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{
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char _debug[512];
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int off = snprintf( _debug, sizeof(_debug), "Blessing ip address " );
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off += fmt_ip6(_debug+off, ip );
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if( permissions & OT_PERMISSION_MAY_STAT ) off += snprintf( _debug+off, 512-off, " may_fetch_stats" );
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if( permissions & OT_PERMISSION_MAY_LIVESYNC ) off += snprintf( _debug+off, 512-off, " may_sync_live" );
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if( permissions & OT_PERMISSION_MAY_FULLSCRAPE ) off += snprintf( _debug+off, 512-off, " may_fetch_fullscrapes" );
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if( permissions & OT_PERMISSION_MAY_PROXY ) off += snprintf( _debug+off, 512-off, " may_proxy" );
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if( !permissions ) off += snprintf( _debug+off, sizeof(_debug)-off, " nothing\n" );
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_debug[off++] = '.';
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write( 2, _debug, off );
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}
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#endif
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return 0;
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}
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int accesslist_isblessed( ot_ip6 ip, ot_permissions permissions ) {
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unsigned int i;
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for( i=0; i<g_adminip_count; ++i )
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if( !memcmp( g_adminip_addresses + i, ip, sizeof(ot_ip6)) && ( g_adminip_permissions[ i ] & permissions ) )
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return 1;
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return 0;
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}
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const char *g_version_accesslist_c = "$Source$: $Revision$\n";
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