+-- Prosody IM
+-- Copyright (C) 2008-2010 Matthew Wild
+-- Copyright (C) 2008-2010 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 b64 = require "util.encodings".base64.encode;
local url = require "socket.url"
+local httpstream_new = require "util.httpstream".new;
+local util_http = require "util.http";
-local server = require "net.server"
+local ssl_available = pcall(require, "ssl");
-local connlisteners_get = require "net.connlisteners".get;
-local listener = connlisteners_get("httpclient") or error("No httpclient listener!");
+local server = require "net.server"
local t_insert, t_concat = table.insert, table.concat;
-local tonumber, tostring, pairs = tonumber, tostring, pairs;
-local print = function () end
+local pairs, ipairs = pairs, ipairs;
+local tonumber, tostring, xpcall, select, debug_traceback, char, format =
+ tonumber, tostring, 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("%%%02x", c:byte()); end)); end
+local log = require "util.logger".init("http");
module "http"
-local function expectbody(reqt, code)
- if reqt.method == "HEAD" then return nil end
- if code == 204 or code == 304 then return nil end
- if code >= 100 and code < 200 then return nil end
- return 1
+local requests = {}; -- Open requests
+
+local listener = { default_port = 80, default_mode = "*a" };
+
+function listener.onconnect(conn)
+ local req = requests[conn];
+ -- Send the request
+ local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" };
+ if req.query then
+ t_insert(request_line, 4, "?"..req.query);
+ end
+
+ conn:write(t_concat(request_line));
+ local t = { [2] = ": ", [4] = "\r\n" };
+ for k, v in pairs(req.headers) do
+ t[1], t[3] = k, v;
+ conn:write(t_concat(t));
+ end
+ conn:write("\r\n");
+
+ if req.body then
+ conn:write(req.body);
+ end
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
- -- Error.. connection was closed prematurely
- request.callback(0, "connection-closed", request);
- end
- destroy_request(request);
+function listener.onincoming(conn, data)
+ local request = requests[conn];
+
+ if not request then
+ log("warn", "Received response from connection %s with no request attached!", tostring(conn));
return;
end
- if request.state == "body" 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
- data = data:sub(startpos, -1)
- end
- t_insert(request.body, data);
- if request.bodylength then
- request.havebodylength = request.havebodylength + #data;
- if request.havebodylength >= request.bodylength then
- -- We have the body
- if request.callback then
- request.callback(request.code, t_concat(request.body), request);
- end
- end
- print("", "Have "..request.havebodylength.." bytes out of "..request.bodylength);
- end
- elseif request.state == "headers" then
- print("Reading headers...")
- local pos = startpos;
- local headers = request.responseheaders or {};
- for line in data:sub(startpos, -1):gmatch("(.-)\r\n") do
- startpos = startpos + #line + 2;
- local k, v = line:match("(%S+): (.+)");
- if k and v then
- headers[k:lower()] = v;
- print("Header: "..k:lower().." = "..v);
- elseif #line == 0 then
- request.responseheaders = headers;
- break;
- else
- print("Unhandled header line: "..line);
+
+ if data and request.reader then
+ request:reader(data);
+ end
+end
+
+function listener.ondisconnect(conn, err)
+ local request = requests[conn];
+ if request and request.conn then
+ request:reader(nil);
+ end
+ requests[conn] = nil;
+end
+
+local function request_reader(request, data)
+ if not request.parser then
+ if not data then return; end
+ local function success_cb(r)
+ if request.callback then
+ for k,v in pairs(r) do request[k] = v; end
+ request.callback(r.body, r.code, request, r);
+ request.callback = nil;
end
+ destroy_request(request);
end
- -- Reached the end of the headers
- request.state = "body";
- if #data > startpos then
- return request_reader(request, data, startpos);
- end
- elseif request.state == "status" then
- print("Reading status...")
- local http, code, text, linelen = data:match("^HTTP/(%S+) (%d+) (.-)\r\n()", startpos);
- if not code then
- return request.callback(0, "invalid-status-line", request);
- end
-
- request.responsecode, request.responseversion = code, http;
-
- if request.onlystatus or not expectbody(request, tonumber(code)) then
+ local function error_cb(r)
if request.callback then
- request.callback(code, nil, request);
+ request.callback(r or "connection-closed", 0, request);
+ request.callback = nil;
end
destroy_request(request);
- return;
end
-
- request.state = "headers";
-
- if #data > linelen then
- return request_reader(request, data, linelen);
+ local function options_cb()
+ return request;
end
+ request.parser = httpstream_new(success_cb, error_cb, "client", options_cb);
end
+ request.parser:feed(data);
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);
- local custom_headers, body;
- local default_headers = { ["Host"] = req.host, ["User-Agent"] = "Prosody XMPP Server" }
+ 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 method, headers, body;
+ headers = {
+ ["Host"] = req.host;
+ ["User-Agent"] = "Prosody XMPP Server";
+ };
if req.userinfo then
- default_headers["Authorization"] = "Basic "..mime.b64(req.userinfo);
+ headers["Authorization"] = "Basic "..b64(req.userinfo);
end
-
+
if ex then
- custom_headers = ex.custom_headers;
req.onlystatus = ex.onlystatus;
body = ex.body;
if body then
- req.method = "POST ";
- default_headers["Content-Length"] = tostring(#body);
- default_headers["Content-Type"] = "application/x-www-form-urlencoded";
+ method = "POST";
+ headers["Content-Length"] = tostring(#body);
+ headers["Content-Type"] = "application/x-www-form-urlencoded";
+ end
+ if ex.method then method = ex.method; end
+ if ex.headers then
+ for k, v in pairs(ex.headers) do
+ headers[k] = v;
+ end
end
- 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.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
- return nil, err;
- end
+ -- Attach to request object
+ req.method, req.headers, req.body = method, headers, body;
- req.write((req.method or "GET ")..req.path.." HTTP/1.0\r\n");
- local t = { [2] = ": ", [4] = "\r\n" };
- if custom_headers then
- for k, v in pairs(custom_headers) do
- t[1], t[3] = k, v;
- req.write(t_concat(t));
- default_headers[k] = nil;
- end
+ local using_https = req.scheme == "https";
+ if using_https and not ssl_available then
+ error("SSL not available, unable to contact https URL");
end
+ local port = tonumber(req.port) or (using_https and 443 or 80);
- for k, v in pairs(default_headers) do
- t[1], t[3] = k, v;
- req.write(t_concat(t));
- default_headers[k] = nil;
+ -- Connect the socket, and wrap it with net.server
+ local conn = socket.tcp();
+ conn:settimeout(10);
+ local ok, err = conn:connect(req.host, port);
+ if not ok and err ~= "timeout" then
+ callback(nil, 0, req);
+ return nil, err;
end
- req.write("\r\n");
- if body then
- req.write(body);
+ local sslctx = false;
+ if using_https then
+ sslctx = ex and ex.sslctx or { mode = "client", protocol = "sslv23", options = { "no_sslv2" } };
end
+
+ req.handler, req.conn = server.wrapclient(conn, req.host, port, listener, "*a", sslctx);
+ req.write = function (...) return req.handler:write(...); end
- req.callback = callback;
+ req.callback = function (content, code, request, response) log("debug", "Calling callback, status %s", code or "---"); return select(2, xpcall(function () return callback(content, code, request, response) end, handleerr)); end
req.reader = request_reader;
- req.state = "status"
-
- listener.register_request(req.handler, req);
+ req.state = "status";
+ requests[req.handler] = req;
return req;
end
function destroy_request(request)
if request.conn then
- request.handler.close()
- listener.disconnect(request.conn, "closed");
+ request.conn = nil;
+ request.handler:close()
end
end
-_M.urlencode = urlencode;
+local urlencode, urldecode = util_http.urlencode, util_http.urldecode;
+local formencode, formdecode = util_http.formencode, util_http.formdecode;
+
+_M.urlencode, _M.urldecode = urlencode, urldecode;
+_M.formencode, _M.formdecode = formencode, formdecode;
return _M;
projects / prosody.git / blobdiff