change repository layout
This commit is contained in:
Bart Van Der Meerssche
parent
7d906488c5
commit
3a28838b29
2003 changed files with 2071 additions and 0 deletions
|
|
@ -1,175 +0,0 @@
|
|||
%% @author icarus75 <bart.vandermeerssche@flukso.net>
|
||||
%% @copyright 2009-2010 flukso.net
|
||||
%% @doc Flukso webmachine_resource.
|
||||
|
||||
-module(flukso_resource).
|
||||
-export([init/1, allowed_methods/2, malformed_request/2, is_authorized/2, content_types_provided/2, to_json/2]).
|
||||
|
||||
-include_lib("webmachine/include/webmachine.hrl").
|
||||
|
||||
-record(state,
|
||||
{rrdSensor,
|
||||
rrdStart,
|
||||
rrdEnd,
|
||||
rrdResolution,
|
||||
rrdFactor,
|
||||
token,
|
||||
jsonpCallback}).
|
||||
|
||||
init([]) ->
|
||||
{ok, undefined}.
|
||||
|
||||
allowed_methods(ReqData, State) ->
|
||||
{['GET'], ReqData, State}.
|
||||
|
||||
malformed_request(ReqData, _State) ->
|
||||
{_Version, ValidVersion} = check_version(wrq:get_req_header("X-Version", ReqData), wrq:get_qs_value("version", ReqData)),
|
||||
{RrdSensor, ValidSensor} = check_sensor(wrq:path_info(sensor, ReqData)),
|
||||
{RrdStart, RrdEnd, RrdResolution, ValidTime} = check_time(wrq:get_qs_value("interval", ReqData), wrq:get_qs_value("start", ReqData), wrq:get_qs_value("end", ReqData), wrq:get_qs_value("resolution", ReqData)),
|
||||
{RrdFactor, ValidUnit} = check_unit(wrq:get_qs_value("unit", ReqData)),
|
||||
{Token, ValidToken} = check_token(wrq:get_req_header("X-Token", ReqData), wrq:get_qs_value("token", ReqData)),
|
||||
{JsonpCallback, ValidJsonpCallback} = check_jsonp_callback(wrq:get_qs_value("jsonp_callback", ReqData)),
|
||||
|
||||
State = #state{rrdSensor = RrdSensor,
|
||||
rrdStart = RrdStart,
|
||||
rrdEnd = RrdEnd,
|
||||
rrdResolution = RrdResolution,
|
||||
rrdFactor = RrdFactor,
|
||||
token = Token,
|
||||
jsonpCallback = JsonpCallback},
|
||||
|
||||
{case {ValidVersion, ValidSensor, ValidTime, ValidUnit, ValidToken, ValidJsonpCallback} of
|
||||
{true, true, true, true, true, true} -> false;
|
||||
_ -> true
|
||||
end,
|
||||
ReqData, State}.
|
||||
|
||||
is_authorized(ReqData, #state{rrdSensor = RrdSensor, token = Token} = State) ->
|
||||
{data, Result} = mysql:execute(pool, permissions, [RrdSensor, Token]),
|
||||
|
||||
{case mysql:get_result_rows(Result) of
|
||||
[[62]] -> true;
|
||||
_Permission -> "access refused"
|
||||
end,
|
||||
ReqData, State}.
|
||||
|
||||
content_types_provided(ReqData, State) ->
|
||||
{[{"application/json", to_json}], ReqData, State}.
|
||||
|
||||
to_json(ReqData, #state{rrdSensor = RrdSensor, rrdStart = RrdStart, rrdEnd = RrdEnd, rrdResolution = RrdResolution, rrdFactor = RrdFactor, jsonpCallback = JsonpCallback} = State) ->
|
||||
case wrq:get_qs_value("interval", ReqData) of
|
||||
"night" -> Path = "var/data/night/";
|
||||
_Interval -> Path = "var/data/base/"
|
||||
end,
|
||||
|
||||
%% debugging: io:format("~s~n", [erlrrd:c([[Path, [RrdSensor|".rrd"]], "AVERAGE", ["-s ", RrdStart], ["-e ", RrdEnd], ["-r ", RrdResolution]])]),
|
||||
|
||||
case erlrrd:fetch(erlrrd:c([[Path, [RrdSensor|".rrd"]], "AVERAGE", ["-s ", RrdStart], ["-e ", RrdEnd], ["-r ", RrdResolution]])) of
|
||||
{ok, Response} ->
|
||||
Filtered = [re:split(X, "[:][ ]", [{return,list}]) || [X] <- Response, string:str(X, ":") == 11],
|
||||
Datapoints = [[list_to_integer(X), round(list_to_float(Y) * RrdFactor)] || [X, Y] <- Filtered, string:len(Y) /= 3],
|
||||
Nans = [[list_to_integer(X), list_to_binary(Y)] || [X, Y] <- Filtered, string:len(Y) == 3],
|
||||
Final = mochijson2:encode(lists:merge(Datapoints, Nans)),
|
||||
{case JsonpCallback of
|
||||
undefined -> Final;
|
||||
_ -> [JsonpCallback, "(", Final, ");"]
|
||||
end,
|
||||
ReqData, State};
|
||||
|
||||
{error, _Reason} ->
|
||||
{{halt, 404}, ReqData, State}
|
||||
end.
|
||||
|
||||
%% checks
|
||||
check_version(undefined, undefined) ->
|
||||
{false, false};
|
||||
check_version(Version, undefined) ->
|
||||
case Version of
|
||||
"1.0" -> {Version, true};
|
||||
_ -> {false, false}
|
||||
end;
|
||||
check_version(undefined, Version) ->
|
||||
check_version(Version, undefined);
|
||||
check_version(_, _) ->
|
||||
{false, false}.
|
||||
|
||||
check_sensor(Sensor) ->
|
||||
case re:run(Sensor, "[0-9a-f]+", []) of
|
||||
{match, [{0,32}]} -> {Sensor, true};
|
||||
_ -> {false, false}
|
||||
end.
|
||||
|
||||
check_time(undefined, undefined, _End, _Resolution) ->
|
||||
{false, false, false, false};
|
||||
check_time(Interval, undefined, undefined, undefined) ->
|
||||
check_time(Interval, undefined, undefined, "");
|
||||
check_time(Interval, undefined, undefined, Resolution) ->
|
||||
Now = unix_time(),
|
||||
|
||||
Intervals = [{"hour", "end-1h", 60},
|
||||
{"day", "end-1d", 900},
|
||||
{"month", "end-30d", 86400},
|
||||
{"year", "end-1y", 604800},
|
||||
{"night", "end-30d", 86400}],
|
||||
|
||||
case {lists:keyfind(Interval, 1, Intervals), re:run(Resolution, "[0-9]+", [])} of
|
||||
{false, _} -> {false, false, false, false};
|
||||
{{_Interval, Start, _DefResolution}, {match, [{0,_}]}} ->
|
||||
AlignedEnd = integer_to_list(time_align(Now, list_to_integer(Resolution))),
|
||||
{Start, AlignedEnd, Resolution, true};
|
||||
{{_Interval, Start, DefResolution}, _} ->
|
||||
AlignedEnd = integer_to_list(time_align(Now, DefResolution)),
|
||||
{Start, AlignedEnd, integer_to_list(DefResolution), true}
|
||||
end;
|
||||
check_time(undefined, Start, undefined, Resolution) ->
|
||||
check_time(undefined, Start, integer_to_list(unix_time()), Resolution);
|
||||
check_time(undefined, Start, End, undefined) ->
|
||||
check_time(undefined, Start, End, "60");
|
||||
check_time(undefined, Start, End, Resolution) ->
|
||||
case {re:run(Start, "[0-9]+", []), re:run(End, "[0-9]+", []), re:run(Resolution, "[0-9]+", [])} of
|
||||
{{match, [{0,_}]}, {match, [{0,_}]}, {match, [{0,_}]}} ->
|
||||
AlignedStart = integer_to_list(time_align(list_to_integer(Start), list_to_integer(Resolution))),
|
||||
AlignedEnd = integer_to_list(time_align(list_to_integer(End), list_to_integer(Resolution))),
|
||||
{AlignedStart, AlignedEnd, Resolution, true};
|
||||
_ -> {false, false, false, false}
|
||||
end;
|
||||
check_time(_, _, _, _) ->
|
||||
{false, false, false, false}.
|
||||
|
||||
check_unit(Unit) ->
|
||||
Units = [{"watt", 3600},
|
||||
{"kwhperyear", 31536},
|
||||
{"eurperyear", 5676},
|
||||
{"audperyear", 5991}],
|
||||
|
||||
case lists:keyfind(Unit, 1, Units) of
|
||||
false -> {false, false};
|
||||
{_Unit, RrdFactor} -> {RrdFactor, true}
|
||||
end.
|
||||
|
||||
check_token(undefined, undefined) ->
|
||||
{false, false};
|
||||
check_token(Token, undefined) ->
|
||||
check_sensor(Token);
|
||||
check_token(undefined, Token) ->
|
||||
check_sensor(Token);
|
||||
check_token(_, _) ->
|
||||
{false, false}.
|
||||
|
||||
check_jsonp_callback(undefined) ->
|
||||
{undefined, true};
|
||||
check_jsonp_callback(JsonpCallback) ->
|
||||
Length = string:len(JsonpCallback),
|
||||
|
||||
case re:run(JsonpCallback, "[0-9a-zA-Z_]+", []) of
|
||||
{match, [{0, Length}]} -> {JsonpCallback, true};
|
||||
_ -> {false, false}
|
||||
end.
|
||||
|
||||
%% helper functions
|
||||
unix_time() ->
|
||||
{Megaseconds, Seconds, _Microseconds} = erlang:now(),
|
||||
Megaseconds*1000000 + Seconds.
|
||||
|
||||
time_align(Time, Resolution) ->
|
||||
(Time div Resolution) * Resolution.
|
||||
Loading…
Add table
Add a link
Reference in a new issue