merged web seed fix from RC_0_16

ChangeLog

@@ -5,6 +5,7 @@
 	* fix uTP edge case where udp socket buffer fills up
 	* fix nagle implementation in uTP
 
+	* web seed fixes (better support for torrents without trailing / in web seeds)
 	* fix some issues with SSL over uTP connections
 	* fix UDP trackers trying all endpoints behind the hostname
 

include/libtorrent/torrent.hpp

@@ -373,16 +373,9 @@ namespace libtorrent
 
 		// add or remove a url that will be attempted for
 		// finding the file(s) in this torrent.
-		void add_web_seed(std::string const& url, web_seed_entry::type_t type)
-		{
-			m_web_seeds.push_back(web_seed_entry(url, type));
-		}
-
+		void add_web_seed(std::string const& url, web_seed_entry::type_t type);
 		void add_web_seed(std::string const& url, web_seed_entry::type_t type
-			, std::string const& auth, web_seed_entry::headers_t const& extra_headers)
-		{
-			m_web_seeds.push_back(web_seed_entry(url, type, auth, extra_headers));
-		}
+			, std::string const& auth, web_seed_entry::headers_t const& extra_headers);
 	
 		void remove_web_seed(std::string const& url, web_seed_entry::type_t type);
 		void disconnect_web_seed(peer_connection* p);

src/torrent.cpp

@@ -5149,6 +5149,7 @@ namespace libtorrent
 			{
 				std::string url = url_list->list_string_value_at(i);
 				if (url.empty()) continue;
+				if (m_torrent_file->num_files() > 1 && url[url.size()-1] != '/') url += '/';
 				add_web_seed(url, web_seed_entry::url_seed);
 			}
 		}
@@ -7217,6 +7218,25 @@ namespace libtorrent
 	}
 #endif
 
+	// add or remove a url that will be attempted for
+	// finding the file(s) in this torrent.
+	void torrent::add_web_seed(std::string const& url, web_seed_entry::type_t type)
+	{
+		web_seed_entry ent(url, type);
+		// don't add duplicates
+		if (std::find(m_web_seeds.begin(), m_web_seeds.end(), ent) != m_web_seeds.end()) return;
+		m_web_seeds.push_back(ent);
+	}
+
+	void torrent::add_web_seed(std::string const& url, web_seed_entry::type_t type
+		, std::string const& auth, web_seed_entry::headers_t const& extra_headers)
+	{
+		web_seed_entry ent(url, type, auth, extra_headers);
+		// don't add duplicates
+		if (std::find(m_web_seeds.begin(), m_web_seeds.end(), ent) != m_web_seeds.end()) return;
+		m_web_seeds.push_back(ent);
+	}
+	
 	void torrent::set_allow_peers(bool b, bool graceful)
 	{
 		TORRENT_ASSERT(m_ses.is_network_thread());

src/torrent_info.cpp

@@ -1103,6 +1103,14 @@ namespace libtorrent
 			return false;
 		}
 
+		lazy_entry const* info = torrent_file.dict_find_dict("info");
+		if (info == 0)
+		{
+			ec = errors::torrent_missing_info;
+			return false;
+		}
+		if (!parse_info_section(*info, ec, flags)) return false;
+
 		// extract the url of the tracker
 		lazy_entry const* i = torrent_file.dict_find_list("announce-list");
 		if (i)
@@ -1187,8 +1195,10 @@ namespace libtorrent
 		lazy_entry const* url_seeds = torrent_file.dict_find("url-list");
 		if (url_seeds && url_seeds->type() == lazy_entry::string_t)
 		{
-			m_web_seeds.push_back(web_seed_entry(maybe_url_encode(url_seeds->string_value())
-				, web_seed_entry::url_seed));
+			web_seed_entry ent(maybe_url_encode(url_seeds->string_value())
+				, web_seed_entry::url_seed);
+			if (m_multifile && ent.url[ent.url.size()-1] != '/') ent.url += '/';
+			m_web_seeds.push_back(ent);
 		}
 		else if (url_seeds && url_seeds->type() == lazy_entry::list_t)
 		{
@@ -1196,8 +1206,10 @@ namespace libtorrent
 			{
 				lazy_entry const* url = url_seeds->list_at(i);
 				if (url->type() != lazy_entry::string_t) continue;
-				m_web_seeds.push_back(web_seed_entry(maybe_url_encode(url->string_value())
-					, web_seed_entry::url_seed));
+				web_seed_entry ent(maybe_url_encode(url->string_value())
+					, web_seed_entry::url_seed);
+				if (m_multifile && ent.url[ent.url.size()-1] != '/') ent.url += '/';
+				m_web_seeds.push_back(ent);
 			}
 		}
 
@@ -1227,13 +1239,7 @@ namespace libtorrent
 		if (m_created_by.empty()) m_created_by = torrent_file.dict_find_string_value("created by");
 		verify_encoding(m_created_by);
 
-		lazy_entry const* info = torrent_file.dict_find_dict("info");
-		if (info == 0)
-		{
-			ec = errors::torrent_missing_info;
-			return false;
-		}
-		return parse_info_section(*info, ec, flags);
+		return true;
 	}
 
 	boost::optional<time_t>