complete all http uri to json api

src/http_front/api.erl

@@ -5,20 +5,46 @@
 %% HTTP API
 %%
 -module(api).
--export([search/3]).
+-export([search/3,
+		 today_top/3,
+		 stats/3,
+		 index/3]).
 -compile(export_all).
 -define(TEXT(Fmt, Args), lists:flatten(io_lib:format(Fmt, Args))).
--define(MAX_FILE, 10).
+-define(MAX_FILE, 3).
+-define(CONTENT_TYPE, "Content-Type: application/json\r\n\r\n").
 
+% search?q=keyword
 search(SessionID, _Env, Input) ->
-	Res = case crawler_http:get_search_keyword(Input) of
+	Res = case http_common:get_search_keyword(Input) of
 		[] -> 
 			"{\"error\":\"null input\", \"suggest\":\"api/search?q=keyword\"}";
 		Keyword ->
 			do_search(Keyword)
 	end,	
-	mod_esi:deliver(SessionID, ["Content-Type: application/json\r\n\r\n", Res]).
+	mod_esi:deliver(SessionID, [?CONTENT_TYPE, Res]).
 
+% today_top
+today_top(SessionID, _Env, _Input) ->
+	Rets = http_cache:today_top(),
+	BodyList = format_search_result(Rets),
+	Body = ?TEXT("{\"results\":[~s]}", [BodyList]),
+	mod_esi:deliver(SessionID, [?CONTENT_TYPE, Body]).
+
+% index?q=hash
+index(SessionID, _Env, Input) ->
+	Body = case http_common:get_view_hash(Input) of
+		[] ->
+			"{\"error\":\"invalid input\"}";
+		Hash ->
+			format_view(Hash)
+	end,
+	mod_esi:deliver(SessionID, [?CONTENT_TYPE, Body]).
+
+stats(SessionID, _Env, _Input) ->
+	Response = format_stats_list(http_cache:stats()),
+	mod_esi:deliver(SessionID, [?CONTENT_TYPE, Response]).
+%%
 do_search(Keyword) ->
 	{Rets, Stats} = http_cache:search(Keyword),
 	{_Found, Cost, Scanned} = Stats,
@@ -27,6 +53,16 @@ do_search(Keyword) ->
 	Body = ?TEXT("\"results\":[~s]}", [BodyList]),
 	Tip ++ Body.
 	
+format_view(Hash) ->
+	case db_frontend:search_one(Hash) of
+		{} -> "{\"error\":\"not found\"}";
+		Torrent ->
+			format_torrent_detail(Torrent)
+	end.
+
+format_torrent_detail(Torrent) ->
+	format_one_result(Torrent, true).
+
 format_search_result([]) ->
 	"";
 format_search_result([First|Rest]) ->
@@ -39,10 +75,13 @@ format_one_result({single, Hash, {Name, Length}, Announce, CTime}, ShowAll) ->
 format_one_result({multi, Hash, {Name, Files}, Announce, CTime}, ShowAll) ->	
 	format_one_result(Hash, Name, Files, Announce, CTime, ShowAll).
 
+% {"hash":"abc", "name":"abc", "created_at":time, "req":count, "file_cnt":cnt, 
+% 	"files":[{"name":"abc", "size":size}]}
 format_one_result(Hash, Name, Files, Announce, CTime, ShowAll) ->
-	?TEXT("{\"hash\":\"~s\", \"name\":\"~s\", \"created_at\":~p, \"req\":~p,",
-		[Hash, Name, CTime, Announce]) ++
-	"\"files\":[" ++ format_files(Files, ShowAll) ++ "]}".
+	SortedFiles = http_common:sort_file_by_size(Files),
+	?TEXT("{\"hash\":\"~s\",\"name\":\"~s\",\"created_at\":~p,\"req\":~p,\"file_cnt\":~p,",
+		[Hash, Name, CTime, Announce, length(Files)]) ++
+	"\"files\":[" ++ format_files(SortedFiles, ShowAll) ++ "]}".
 
 format_files([], _) ->
 	"";
@@ -51,7 +90,7 @@ format_files(Files, false) ->
 	Max = ?MAX_FILE,
 	Sub = case length(Files) >= Max of
 		true ->
-			lists:sublist(Files, Max) ++ [{more, length(Files) - Max}];
+			lists:sublist(Files, Max);
 		false ->
 			Files
 	end,
@@ -70,6 +109,21 @@ format_file({more, Len}) ->
 format_file({Name, Length}) ->
 	?TEXT("{\"name\":\"~s\",\"size\":~b}", [Name, Length]).
 
+format_stats_list(Stats) ->
+	{TorSum, StatsList} = Stats,
+	?TEXT("{\"total\":~p, \"stats\":[", [TorSum]) ++
+	do_format_stats(StatsList) ++ "]}".
+
+do_format_stats([]) ->
+	"";
+do_format_stats([First|Rest]) ->
+	S = [format_stats(First)] ++ ["," ++ format_stats(Stats) || Stats <- Rest],
+	lists:flatten(S).
+
+format_stats({DaySec, Processed, RecvQuery, Updated, New}) ->
+	?TEXT("{\"day_secs\":~p, \"recv\":~p, \"process\":~p, \"update\":~p, \"new\":~p}",
+		[DaySec, RecvQuery, Processed, Updated, New]).
+
 %%
 test_search(Keyword) ->
 	Filename = ?TEXT("search_~s.html", [Keyword]),

src/http_front/crawler_http.erl

@@ -15,7 +15,6 @@
 		 start/4,
 		 start/1,
 		 page_temp/0,
-		 get_search_keyword/1,
 	     stop/0]).
 -record(state, {html_temp, httpid}).
 
@@ -91,12 +90,3 @@ code_change(_, _, State) ->
 handle_info(_, State) ->
     {noreply, State}.
 
-get_search_keyword(Input) ->
-	D = urldecode:decode(Input),
-	ReqList = httpd:parse_query(D),
-	case proplists:get_value("q", ReqList) of
-		undefined -> 
-			"";
-		Keyword ->
-			Keyword
-	end.

src/http_front/http_common.erl

@@ -0,0 +1,30 @@
+%%
+%% http_common.erl
+%% Kevin Lynx
+%% 07.22.2013
+%%
+-module(http_common).
+-export([get_search_keyword/1,
+		 get_view_hash/1,
+		 sort_file_by_size/1]).
+
+get_search_keyword(Input) ->
+	get_q_arg(Input).
+
+get_view_hash(Input) ->
+	get_q_arg(Input).
+
+get_q_arg(Input) ->
+	D = urldecode:decode(Input),
+	ReqList = httpd:parse_query(D),
+	case proplists:get_value("q", ReqList) of
+		undefined -> 
+			"";
+		Arg ->
+			Arg
+	end.
+
+sort_file_by_size(Files) ->
+	lists:sort(fun({_, L1}, {_, L2}) ->
+		L1 > L2
+	end, Files).

src/http_front/http_handler.erl

@@ -17,7 +17,7 @@
 -define(CONTENT_TYPE, "Content-Type: text/html\r\n\r\n").
 
 search(SessionID, _Env, Input) ->
-	{K, Body} = case crawler_http:get_search_keyword(Input) of
+	{K, Body} = case http_common:get_search_keyword(Input) of
 		[] -> 
 			{"", "invalid input"};
 		Key ->
@@ -64,7 +64,7 @@ format_stats_list(Stats) ->
 	simple_html("", Body).
 
 index(SessionID, _Env, Input) ->
-	Body = case get_index_hash(Input) of
+	Body = case http_common:get_view_hash(Input) of
 		[] ->
 			"invalid hash";
 		Hash ->
@@ -73,14 +73,6 @@ index(SessionID, _Env, Input) ->
 	Response = simple_html("", Body),
 	mod_esi:deliver(SessionID, [?CONTENT_TYPE, Response]).
 
-get_index_hash(Input) ->
-	case string:equal(string:substr(Input, 1, 2), "q=") of
-		true ->
-			string:substr(Input, 3);
-		false ->
-			[]
-	end.
-
 simple_html(Key, Body) ->
  	?TEXT(crawler_http:page_temp(), [Key, Body]).
 	
@@ -111,9 +103,10 @@ format_one_result({multi, Hash, {Name, Files}, Announce, CTime}, ShowAll) ->
 	format_one_result(Hash, Name, Files, Announce, CTime, ShowAll).
 
 format_one_result(Hash, Name, Files, Announce, CTime, ShowAll) ->
+	SortedFiles = http_common:sort_file_by_size(Files),
 	?TEXT("<li><p class=\"search-title\">
 		<a target='_blank' href=\"/e/http_handler:index?q=~s\">~s</a></p><ul>~s</ul>",
-		[Hash, Name, format_files(Files, ShowAll)]) ++
+		[Hash, Name, format_files(SortedFiles, ShowAll)]) ++
 	?TEXT("<p class=\"search-detail\">Index at: ~s  |  File count: ~p  |  Query count: ~p
 		<a href=\"~s\" class=\"download-tip\">  Download</a></p>",
 		[format_time_string(CTime), length(Files), Announce, format_magnet(Hash)]).