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Code Issues Releases Wiki Activity

(trunk libT) #3519 "webseeds don't work" -- fixed.

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This commit is contained in:
Jordan Lee 2011-01-06 01:00:21 +00:00
parent 5a8800fda1
commit 6dc03f471e
7 changed files with 250 additions and 178 deletions
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6
libtransmission/peer-common.h
View file

@ -85,9 +85,9 @@ tr_peer_event;
struct tr_peer;
typedef void tr_peer_callback( struct tr_peer * peer,
const tr_peer_event * event,
void * client_data );
typedef void tr_peer_callback( struct tr_peer * peer,
const tr_peer_event * event,
void * client_data );
#ifdef WIN32
#define EMSGSIZE WSAEMSGSIZE

10
libtransmission/peer-mgr.c
View file

@ -160,7 +160,7 @@ tr_isAtom( const struct peer_atom * atom )
static const char*
tr_atomAddrStr( const struct peer_atom * atom )
{
return tr_peerIoAddrStr( &atom->addr, atom->port );
return atom ? tr_peerIoAddrStr( &atom->addr, atom->port ) : "[no atom]";
}
struct block_request
@ -1199,7 +1199,7 @@ refillUpkeep( int foo UNUSED, short bar UNUSED, void * vmgr )
for( it=t->requests, end=it+n; it!=end; ++it )
{
if( ( it->sentAt <= too_old ) && !tr_peerMsgsIsReadingBlock( it->peer->msgs, it->block ) )
if( ( it->sentAt <= too_old ) && it->peer->msgs && !tr_peerMsgsIsReadingBlock( it->peer->msgs, it->block ) )
cancel[cancelCount++] = *it;
else
{
@ -1407,7 +1407,7 @@ peerCallbackFunc( tr_peer * peer, const tr_peer_event * e, void * vt )
tr_statsAddDownloaded( tor->session, e->length );
/* update our atom */
if( peer && e->wasPieceData )
if( peer && peer->atom && e->wasPieceData )
peer->atom->piece_data_time = now;
break;
@ -1434,7 +1434,7 @@ peerCallbackFunc( tr_peer * peer, const tr_peer_event * e, void * vt )
requestListRemove( t, block, peer );
pieceListRemoveRequest( t, block );
if( peer != NULL )
if( peer && peer->blocksSentToClient )
tr_historyAdd( peer->blocksSentToClient, tr_time( ), 1 );
if( tr_cpBlockIsComplete( &tor->completion, block ) )
@ -1482,7 +1482,7 @@ peerCallbackFunc( tr_peer * peer, const tr_peer_event * e, void * vt )
* content distributor, not the peers, it is the tracker's job
* to manage the swarms, not the web server and does not fit
* into the jurisdiction of the tracker." */
if( peer != NULL ) {
if( peer->msgs != NULL ) {
const uint32_t n = tr_torPieceCountBytes( tor, p );
tr_announcerAddBytes( tor, TR_ANN_DOWN, n );
}

3
libtransmission/ratecontrol.c
View file

@ -73,8 +73,7 @@ tr_rcRate_Bps( const tr_ratecontrol * r, uint64_t now )
***/
void
tr_rcTransferred( tr_ratecontrol * r,
size_t size )
tr_rcTransferred( tr_ratecontrol * r, size_t size )
{
const uint64_t now = tr_time_msec ( );

20
libtransmission/web.c
View file

@ -73,6 +73,7 @@ struct tr_web_task
{
long code;
struct evbuffer * response;
struct evbuffer * freebuf;
char * url;
char * range;
tr_session * session;
@ -83,7 +84,8 @@ struct tr_web_task
static void
task_free( struct tr_web_task * task )
{
evbuffer_free( task->response );
if( task->freebuf )
evbuffer_free( task->freebuf );
tr_free( task->range );
tr_free( task->url );
tr_free( task );
@ -213,6 +215,19 @@ tr_webRun( tr_session * session,
const char * range,
tr_web_done_func done_func,
void * done_func_user_data )
{
tr_webRunWithBuffer( session, url, range,
done_func, done_func_user_data,
NULL );
}
void
tr_webRunWithBuffer( tr_session * session,
const char * url,
const char * range,
tr_web_done_func done_func,
void * done_func_user_data,
struct evbuffer * buffer )
{
struct tr_web * web = session->web;
@ -225,7 +240,8 @@ tr_webRun( tr_session * session,
task->range = tr_strdup( range );
task->done_func = done_func;
task->done_func_user_data = done_func_user_data;
task->response = evbuffer_new( );
task->response = buffer ? buffer : evbuffer_new( );
task->freebuf = buffer ? NULL : task->response;
tr_lockLock( web->taskLock );
tr_list_append( &web->tasks, task );

17
libtransmission/web.h
View file

@ -50,14 +50,21 @@ typedef void ( tr_web_done_func )( tr_session * session,
const char * tr_webGetResponseStr( long response_code );
void tr_webRun( tr_session * session,
const char * url,
const char * range,
tr_web_done_func done_func,
void * done_func_user_data );
void tr_webRun( tr_session * session,
const char * url,
const char * range,
tr_web_done_func done_func,
void * done_func_user_data );
struct evbuffer;
void tr_webRunWithBuffer( tr_session * session,
const char * url,
const char * range,
tr_web_done_func done_func,
void * done_func_user_data,
struct evbuffer * buffer );
void tr_http_escape( struct evbuffer *out, const char *str, int len, tr_bool escape_slashes );
char* tr_http_unescape( const char * str, int len );

363
libtransmission/webseed.c
View file

@ -10,41 +10,61 @@
* $Id$
*/
#include <string.h> /* strlen */
#include <string.h> /* strlen() */
#include <event2/buffer.h>
#include <event2/event.h>
#include "transmission.h"
#include "inout.h"
#include "cache.h"
#include "inout.h" /* tr_ioFindFileLocation() */
#include "list.h"
#include "ratecontrol.h"
#include "peer-mgr.h"
#include "torrent.h"
#include "utils.h"
#include "web.h"
#include "webseed.h"
struct tr_webseed_task
{
tr_session * session;
struct evbuffer * content;
struct tr_webseed * webseed;
tr_block_index_t block;
tr_piece_index_t piece_index;
uint32_t piece_offset;
uint32_t length;
int torrent_id;
};
struct tr_webseed
{
tr_bool busy;
tr_bool dead;
uint8_t hash[SHA_DIGEST_LENGTH];
char * url;
tr_peer_callback * callback;
void * callback_data;
tr_piece_index_t pieceIndex;
uint32_t pieceOffset;
uint32_t byteCount;
tr_ratecontrol rateDown;
tr_session * session;
struct evbuffer * content;
tr_peer parent;
tr_ratecontrol download_rate;
tr_session * session;
tr_peer_callback * callback;
void * callback_data;
tr_list * tasks;
struct event * timer;
char * base_url;
size_t base_url_len;
int torrent_id;
tr_bool is_stopping;
};
static void
webseed_free( struct tr_webseed * w )
{
tr_bitsetDestructor( &w->parent.have );
tr_free( w->parent.client );
event_free( w->timer );
tr_rcDestruct( &w->download_rate );
tr_free( w->base_url );
tr_free( w );
}
/***
****
***/
@ -55,27 +75,17 @@ static void
publish( tr_webseed * w, tr_peer_event * e )
{
if( w->callback != NULL )
w->callback( NULL, e, w->callback_data );
w->callback( &w->parent, e, w->callback_data );
}
static void
fireNeedReq( tr_webseed * w )
{
#if 0
tr_peer_event e = blankEvent;
e.eventType = TR_PEER_NEED_REQ;
publish( w, &e );
#endif
}
static void
fireClientGotBlock( tr_webseed * w, uint32_t pieceIndex, uint32_t offset, uint32_t length )
fireClientGotBlock( tr_torrent * tor, tr_webseed * w, tr_block_index_t block )
{
tr_peer_event e = blankEvent;
e.pieceIndex = tr_torBlockPiece( tor, block );
e.offset = tor->blockSize * block - tor->info.pieceSize * e.pieceIndex;
e.length = tr_torBlockCountBytes( tor, block );
e.eventType = TR_PEER_CLIENT_GOT_BLOCK;
e.pieceIndex = pieceIndex;
e.offset = offset;
e.length = length;
publish( w, &e );
}
@ -93,157 +103,209 @@ fireClientGotData( tr_webseed * w, uint32_t length )
****
***/
static void
on_content_changed( struct evbuffer * buf UNUSED,
const struct evbuffer_cb_info * info,
void * vw )
{
tr_webseed * w = vw;
if( ( info->n_added > 0 ) && !w->is_stopping )
{
tr_rcTransferred( &w->download_rate, info->n_added );
fireClientGotData( w, info->n_added );
}
}
static void task_request_next_chunk( struct tr_webseed_task * task );
static void
on_idle( tr_webseed * w )
{
tr_torrent * tor = tr_torrentFindFromId( w->session, w->torrent_id );
if( w->is_stopping && !tr_webseedIsActive( w ) )
{
webseed_free( w );
}
else if( !w->is_stopping && tor && tor->isRunning && !tr_torrentIsSeed( tor ) )
{
int i;
int got = 0;
const int max = tor->blockCountInPiece;
const int want = max - tr_list_size( w->tasks );
tr_block_index_t * blocks = NULL;
if( want > 0 )
{
blocks = tr_new( tr_block_index_t, want );
tr_peerMgrGetNextRequests( tor, &w->parent, want, blocks, &got );
}
for( i=0; i<got; ++i )
{
const tr_block_index_t b = blocks[i];
struct tr_webseed_task * task = tr_new( struct tr_webseed_task, 1 );
task->webseed = w;
task->session = w->session;
task->torrent_id = w->torrent_id;
task->block = b;
task->piece_index = tr_torBlockPiece( tor, b );
task->piece_offset = ( tor->blockSize * b )
- ( tor->info.pieceSize * task->piece_index );
task->length = tr_torBlockCountBytes( tor, b );
task->content = evbuffer_new( );
evbuffer_add_cb( task->content, on_content_changed, w );
tr_list_append( &w->tasks, task );
task_request_next_chunk( task );
}
tr_free( blocks );
}
}
static void
web_response_func( tr_session * session,
long response_code,
const void * response UNUSED,
size_t response_byte_count UNUSED,
void * vtask )
{
struct tr_webseed_task * t = vtask;
tr_torrent * tor = tr_torrentFindFromId( session, t->torrent_id );
const int success = ( response_code == 206 );
if( success && tor )
{
if( evbuffer_get_length( t->content ) < t->length )
{
task_request_next_chunk( t );
}
else
{
tr_webseed * w = t->webseed;
tr_cacheWriteBlock( session->cache, tor,
t->piece_index, t->piece_offset, t->length,
evbuffer_pullup( t->content, -1 ) );
fireClientGotBlock( tor, w, t->block );
tr_list_remove_data( &w->tasks, t );
evbuffer_free( t->content );
tr_free( t );
on_idle( w );
}
}
}
static char*
makeURL( tr_webseed * w,
const tr_file * file )
make_url( tr_webseed * w, const tr_file * file )
{
struct evbuffer * out = evbuffer_new( );
const char * url = w->url;
const size_t url_len = strlen( url );
evbuffer_add( out, url, url_len );
evbuffer_add( out, w->base_url, w->base_url_len );
/* if url ends with a '/', add the torrent name */
if( url[url_len - 1] == '/' && file->name )
if( w->base_url[w->base_url_len - 1] == '/' && file->name )
tr_http_escape( out, file->name, strlen(file->name), FALSE );
return evbuffer_free_to_str( out );
}
static void requestNextChunk( tr_webseed * w );
static void
webResponseFunc( tr_session * session,
long response_code,
const void * response,
size_t response_byte_count,
void * vw )
task_request_next_chunk( struct tr_webseed_task * t )
{
tr_webseed * w = vw;
tr_torrent * tor = tr_torrentFindFromHash( session, w->hash );
const int success = ( response_code == 206 );
/*fprintf( stderr, "server responded with code %ld and %lu bytes\n",
response_code, (unsigned long)response_byte_count );*/
if( !success )
{
/* FIXME */
}
else if( tor != NULL )
{
evbuffer_add( w->content, response, response_byte_count );
if( !w->dead )
{
fireClientGotData( w, response_byte_count );
tr_rcTransferred( &w->rateDown, response_byte_count );
}
if( evbuffer_get_length( w->content ) < w->byteCount )
requestNextChunk( w );
else {
tr_ioWrite( tor, w->pieceIndex, w->pieceOffset, w->byteCount, evbuffer_pullup( w->content, -1 ) );
evbuffer_drain( w->content, evbuffer_get_length( w->content ) );
w->busy = 0;
if( w->dead )
tr_webseedFree( w );
else {
fireClientGotBlock( w, w->pieceIndex, w->pieceOffset, w->byteCount );
fireNeedReq( w );
}
}
}
}
static void
requestNextChunk( tr_webseed * w )
{
tr_torrent * tor = tr_torrentFindFromHash( w->session, w->hash );
tr_torrent * tor = tr_torrentFindFromId( t->session, t->torrent_id );
if( tor != NULL )
{
const tr_info * inf = tr_torrentInfo( tor );
const uint32_t have = evbuffer_get_length( w->content );
const uint32_t left = w->byteCount - have;
const uint32_t pieceOffset = w->pieceOffset + have;
tr_file_index_t fileIndex;
uint64_t fileOffset;
uint32_t thisPass;
char * url;
char * range;
char range[64];
tr_ioFindFileLocation( tor, w->pieceIndex, pieceOffset,
&fileIndex, &fileOffset );
thisPass = MIN( left, inf->files[fileIndex].length - fileOffset );
const tr_info * inf = tr_torrentInfo( tor );
const uint32_t remain = t->length - evbuffer_get_length( t->content );
url = makeURL( w, &inf->files[fileIndex] );
/*fprintf( stderr, "url is [%s]\n", url );*/
range = tr_strdup_printf( "%"PRIu64"-%"PRIu64, fileOffset, fileOffset + thisPass - 1 );
/*fprintf( stderr, "range is [%s] ... we want %lu total, we have %lu, so %lu are left, and we're asking for %lu this time\n", range, (unsigned long)w->byteCount, (unsigned long)have, (unsigned long)left, (unsigned long)thisPass );*/
tr_webRun( w->session, url, range, webResponseFunc, w );
tr_free( range );
const uint64_t total_offset = inf->pieceSize * t->piece_index
+ t->piece_offset
+ evbuffer_get_length( t->content );
const tr_piece_index_t step_piece = total_offset / inf->pieceSize;
const uint32_t step_piece_offset = total_offset - ( inf->pieceSize * step_piece );
tr_file_index_t file_index;
uint64_t file_offset;
const tr_file * file;
uint32_t this_pass;
tr_ioFindFileLocation( tor, step_piece, step_piece_offset,
&file_index, &file_offset );
file = &inf->files[file_index];
this_pass = MIN( remain, file->length - file_offset );
url = make_url( t->webseed, file );
tr_snprintf( range, sizeof range, "%"PRIu64"-%"PRIu64,
file_offset, file_offset + this_pass - 1 );
tr_webRunWithBuffer( t->session, url, range,
web_response_func, t, t->content );
tr_free( url );
}
}
tr_addreq_t
tr_webseedAddRequest( tr_webseed * w,
uint32_t pieceIndex,
uint32_t pieceOffset,
uint32_t byteCount )
{
int ret;
if( w->busy || w->dead )
{
ret = TR_ADDREQ_FULL;
}
else
{
w->busy = 1;
w->pieceIndex = pieceIndex;
w->pieceOffset = pieceOffset;
w->byteCount = byteCount;
evbuffer_drain( w->content, evbuffer_get_length( w->content ) );
requestNextChunk( w );
ret = TR_ADDREQ_OK;
}
return ret;
}
int
tr_bool
tr_webseedIsActive( const tr_webseed * w )
{
return w->busy != 0;
return w->tasks != NULL;
}
int
tr_bool
tr_webseedGetSpeed_Bps( const tr_webseed * w, uint64_t now, int * setme_Bps )
{
const int isActive = tr_webseedIsActive( w );
*setme_Bps = isActive ? tr_rcRate_Bps( &w->rateDown, now ) : 0;
return isActive;
const tr_bool is_active = tr_webseedIsActive( w );
*setme_Bps = is_active ? tr_rcRate_Bps( &w->download_rate, now ) : 0;
return is_active;
}
/***
****
***/
static void
webseed_timer_func( evutil_socket_t foo UNUSED, short bar UNUSED, void * vw )
{
tr_webseed * w = vw;
on_idle( w );
tr_timerAddMsec( w->timer, 1000 );
}
tr_webseed*
tr_webseedNew( struct tr_torrent * torrent,
tr_webseedNew( struct tr_torrent * tor,
const char * url,
tr_peer_callback * callback,
void * callback_data )
{
tr_webseed * w = tr_new0( tr_webseed, 1 );
tr_peer * peer = &w->parent;
memcpy( w->hash, torrent->info.hash, SHA_DIGEST_LENGTH );
w->session = torrent->session;
w->content = evbuffer_new( );
w->url = tr_strdup( url );
peer->peerIsChoked = TRUE;
peer->peerIsInterested = FALSE;
peer->clientIsChoked = FALSE;
peer->clientIsChoked = FALSE;
peer->clientIsInterested = !tr_torrentIsSeed( tor );
tr_bitsetConstructor( &peer->have, tor->info.pieceCount );
tr_bitsetSetHaveAll( &peer->have );
peer->progress = 1.0;
peer->client = tr_strdup( "webseed" );
w->torrent_id = tr_torrentId( tor );
w->session = tor->session;
w->base_url_len = strlen( url );
w->base_url = tr_strndup( url, w->base_url_len );
w->callback = callback;
w->callback_data = callback_data;
tr_rcConstruct( &w->rateDown );
tr_rcConstruct( &w->download_rate );
w->timer = evtimer_new( w->session->event_base, webseed_timer_func, w );
tr_timerAddMsec( w->timer, 1000 );
return w;
}
@ -252,16 +314,9 @@ tr_webseedFree( tr_webseed * w )
{
if( w )
{
if( w->busy )
{
w->dead = 1;
}
if( tr_webseedIsActive( w ) )
w->is_stopping = TRUE;
else
{
evbuffer_free( w->content );
tr_rcDestruct( &w->rateDown );
tr_free( w->url );
tr_free( w );
}
webseed_free( w );
}
}

9
libtransmission/webseed.h
View file

@ -28,18 +28,13 @@ tr_webseed* tr_webseedNew( struct tr_torrent * torrent,
void tr_webseedFree( tr_webseed * );
tr_addreq_t tr_webseedAddRequest( tr_webseed * w,
uint32_t index,
uint32_t offset,
uint32_t length );
/** @return true if a request is being processed, or false if idle */
int tr_webseedGetSpeed_Bps( const tr_webseed * w,
tr_bool tr_webseedGetSpeed_Bps( const tr_webseed * w,
uint64_t now,
int * setme_Bps );
/** @return true if a request is being processed, or false if idle */
int tr_webseedIsActive( const tr_webseed * w );
tr_bool tr_webseedIsActive( const tr_webseed * w );
#endif