From 5f7c044b54d7711dd898fce9c959b27b35898437 Mon Sep 17 00:00:00 2001
From: erdgeist <>
Date: Sat, 20 Jan 2007 11:13:30 +0000
Subject: Full scrape, kinda tested

---
 opentracker.c  | 43 +++++++++++++++++++++++++++++++++++++------
 trackerlogic.c | 36 ++++++++++++++++++++++++++++++++++++
 trackerlogic.h |  1 +
 3 files changed, 74 insertions(+), 6 deletions(-)

diff --git a/opentracker.c b/opentracker.c
index df46f8d..2020b43 100644
--- a/opentracker.c
+++ b/opentracker.c
@@ -71,6 +71,29 @@ int header_complete(struct http_data* r) {
   return 0;
 }
 
+void sendmallocdata( int64 s, struct http_data *h, char * buffer, size_t size ) {
+  tai6464 t;
+  char *header;
+  size_t header_size;
+
+  if( !h ) { free( buffer); return; }
+  array_reset(&h->r);
+
+  header = malloc( SUCCESS_HTTP_HEADER_LENGTH );
+  if( !header ) { free( buffer ); return; }
+
+  header_size = sprintf( header, "HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Length: %zd\r\n\r\n", size );
+
+  iob_reset( &h->batch );
+  iob_addbuf_free( &h->batch, header, header_size );
+  iob_addbuf_free( &h->batch, buffer, size );
+
+  // writeable sockets just have a tcp timeout
+  taia_uint(&t,0); io_timeout( s, t );
+  io_dontwantread( s );
+  io_wantwrite( s );
+}
+
 /* whoever sends data is not interested in its input-array */
 void senddata(int64 s, struct http_data* h, char *buffer, size_t size ) {
   size_t written_size;
@@ -84,7 +107,6 @@ void senddata(int64 s, struct http_data* h, char *buffer, size_t size ) {
 #endif
     free(h); io_close( s );
   } else {
-    /* here we would take a copy of the buffer and remember it */
     char * outbuf = malloc( size - written_size );
     tai6464 t;
 
@@ -103,6 +125,8 @@ void senddata(int64 s, struct http_data* h, char *buffer, size_t size ) {
 
     // writeable sockets just have a tcp timeout
     taia_uint(&t,0); io_timeout( s, t );
+    io_dontwantread( s );
+    io_wantwrite( s );
   }
 }
 
@@ -221,13 +245,20 @@ e400_param:
       }
     }
 
-    /* Scanned whole query string, wo */
-    if( !hash )
-      return httperror(s,h,"400 Invalid Request","This server only serves specific scrapes.");
+    /* Scanned whole query string, no hash means full scrape... you might want to limit that */
+    if( !hash ) {
+      char * reply;
+
+      reply_size = return_fullscrape_for_tracker( &reply );
+      if( reply_size )
+        return sendmallocdata( s, h, reply, reply_size );
 
-    /* Enough for http header + whole scrape string */
-    if( ( reply_size = return_scrape_for_torrent( hash, SUCCESS_HTTP_HEADER_LENGTH + static_scratch ) ) <= 0 )
       goto e500;
+    } else {
+      /* Enough for http header + whole scrape string */
+      if( ( reply_size = return_scrape_for_torrent( hash, SUCCESS_HTTP_HEADER_LENGTH + static_scratch ) ) <= 0 )
+        goto e500;
+    }
     break;
   case 8: 
     if( byte_diff(data,8,"announce"))
diff --git a/trackerlogic.c b/trackerlogic.c
index 6c988df..4f2ba68 100644
--- a/trackerlogic.c
+++ b/trackerlogic.c
@@ -290,6 +290,42 @@ size_t return_peers_for_torrent( ot_torrent *torrent, unsigned int amount, char
   return r - reply;
 }
 
+/* Fetch full scrape info for all torrents */
+size_t return_fullscrape_for_tracker( char **reply ) {
+  int torrent_count = 0, i, j, k;
+  char* r;
+  time_t time_now = NOW;
+
+  for( i=0; i<256; ++i ) {
+    ot_vector *torrents_list = &all_torrents[i];
+    torrent_count += torrents_list->size;
+  }
+
+  r = *reply = malloc( 128*torrent_count );
+  if( !reply ) return 0;
+  
+  memmove( r, "d5:filesd", 9 ); r += 9;
+  for( i=0; i<256; ++i ) {
+    ot_vector *torrents_list = &all_torrents[i];
+    for( j=0; j<torrents_list->size; ++j ) {
+      ot_peerlist *peer_list = ( ((ot_torrent*)(torrents_list->data))[j] ).peer_list;
+      ot_hash     *hash      =&( ((ot_torrent*)(torrents_list->data))[j] ).hash;
+      int peers = 0, seeds = 0;
+      clean_peerlist( time_now, peer_list );
+      for( k=0; k<OT_POOLS_COUNT; ++k ) {
+        peers += peer_list->peers[k].size;
+        seeds += peer_list->seed_count[k];
+      }
+      memmove( r, "20:", 3 ); r+=3;
+      memmove( r, hash, 20 ); r+=20;
+      r += sprintf( r, "d8:completei%de10:downloadedi%de10:incompletei%de", seeds, peer_list->downloaded, peers-seeds );
+    }
+  }
+
+  *r++='e'; *r++='e';
+  return r - *reply;
+}
+
 /* Fetches scrape info for a specific torrent */
 size_t return_scrape_for_torrent( ot_hash *hash, char *reply ) {
   char        *r = reply;
diff --git a/trackerlogic.h b/trackerlogic.h
index 413c10b..b047d7d 100644
--- a/trackerlogic.h
+++ b/trackerlogic.h
@@ -83,6 +83,7 @@ enum { STATS_MRTG, STATS_TOP5 };
 
 ot_torrent *add_peer_to_torrent( ot_hash *hash, ot_peer *peer );
 size_t return_peers_for_torrent( ot_torrent *torrent, unsigned int amount, char *reply );
+size_t return_fullscrape_for_tracker( char **reply );
 size_t return_scrape_for_torrent( ot_hash *hash, char *reply );
 size_t return_stats_for_tracker( char *reply, int mode );
 void  remove_peer_from_torrent( ot_hash *hash, ot_peer *peer );
-- 
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