+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
local socket = require "socket"
local mime = require "mime"
local listener = connlisteners_get("httpclient") or error("No httpclient listener!");
local t_insert, t_concat = table.insert, table.concat;
-local tonumber, tostring, pairs = tonumber, tostring, pairs;
-local print = function () end
+local tonumber, tostring, pairs, xpcall, select, debug_traceback, char, format =
+ tonumber, tostring, pairs, xpcall, select, debug.traceback, string.char, string.format;
-local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber("0x"..k)); return t[k]; end });
-local urlencode = function (s) return s and (s:gsub("%W", function (c) return string.format("%%%x", c:byte()); end)); end
+local log = require "util.logger".init("http");
+local print = function () end
module "http"
+function urlencode(s) return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); end
+function urldecode(s) return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end)); end
+
local function expectbody(reqt, code)
if reqt.method == "HEAD" then return nil end
if code == 204 or code == 304 then return nil end
local function request_reader(request, data, startpos)
if not data then
if request.body then
- request.callback(request.code, t_concat(request.body), request);
- else
+ log("debug", "Connection closed, but we have data, calling callback...");
+ request.callback(t_concat(request.body), request.code, request);
+ elseif request.state ~= "completed" then
-- Error.. connection was closed prematurely
- request.callback(0, "connection-closed", request);
+ request.callback("connection-closed", 0, request);
end
destroy_request(request);
+ request.body = nil;
+ request.state = "completed";
return;
end
- if request.state == "body" then
+ if request.state == "body" and request.state ~= "completed" then
print("Reading body...")
if not request.body then request.body = {}; request.havebodylength, request.bodylength = 0, tonumber(request.responseheaders["content-length"]); end
if startpos then
request.havebodylength = request.havebodylength + #data;
if request.havebodylength >= request.bodylength then
-- We have the body
+ log("debug", "Have full body, calling callback");
if request.callback then
- request.callback(request.code, t_concat(request.body), request);
+ request.callback(t_concat(request.body), request.code, request);
end
+ request.body = nil;
+ request.state = "completed";
+ else
+ print("", "Have "..request.havebodylength.." bytes out of "..request.bodylength);
end
- print("", "Have "..request.havebodylength.." bytes out of "..request.bodylength);
end
elseif request.state == "headers" then
print("Reading headers...")
elseif request.state == "status" then
print("Reading status...")
local http, code, text, linelen = data:match("^HTTP/(%S+) (%d+) (.-)\r\n()", startpos);
+ code = tonumber(code);
if not code then
- return request.callback(0, "invalid-status-line", request);
+ return request.callback("invalid-status-line", 0, request);
end
- request.responsecode, request.responseversion = code, http;
+ request.code, request.responseversion = code, http;
- if request.onlystatus or not expectbody(request, tonumber(code)) then
+ if request.onlystatus or not expectbody(request, code) then
if request.callback then
- request.callback(code, nil, request);
+ request.callback(nil, code, request);
end
destroy_request(request);
return;
end
end
-function request(u, callback, ex)
+local function handleerr(err) log("error", "Traceback[http]: %s: %s", tostring(err), debug_traceback()); end
+function request(u, ex, callback)
local req = url.parse(u);
+ if not (req and req.host) then
+ callback(nil, 0, req);
+ return nil, "invalid-url";
+ end
+
+ if not req.path then
+ req.path = "/";
+ end
+
local custom_headers, body;
local default_headers = { ["Host"] = req.host, ["User-Agent"] = "Prosody XMPP Server" }
end
if ex then
- custom_headers = ex.custom_headers;
+ custom_headers = ex.headers;
req.onlystatus = ex.onlystatus;
body = ex.body;
if body then
if ex.method then req.method = ex.method; end
end
- req.handler, req.conn = server.wraptcpclient(listener, socket.tcp(), req.host, req.port or 80, 0, "*a");
+ req.handler, req.conn = server.wrapclient(socket.tcp(), req.host, req.port or 80, listener, "*a");
req.write = req.handler.write;
req.conn:settimeout(0);
local ok, err = req.conn:connect(req.host, req.port or 80);
if not ok and err ~= "timeout" then
+ callback(nil, 0, req);
return nil, err;
end
- req.write((req.method or "GET ")..req.path.." HTTP/1.0\r\n");
+ local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" };
+
+ if req.query then
+ t_insert(request_line, 4, "?");
+ t_insert(request_line, 5, req.query);
+ end
+
+ req.write(t_concat(request_line));
local t = { [2] = ": ", [4] = "\r\n" };
if custom_headers then
for k, v in pairs(custom_headers) do
req.write(body);
end
- req.callback = callback;
+ req.callback = function (content, code, request) log("debug", "Calling callback, status %s", code or "---"); return select(2, xpcall(function () return callback(content, code, request) end, handleerr)); end
req.reader = request_reader;
- req.state = "status"
+ req.state = "status";
listener.register_request(req.handler, req);