+-- 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 url = require "socket.url"
+local httpstream_new = require "util.httpstream".new;
local server = require "net.server"
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 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("%%%x", 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
-end
+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 request_reader(request, data, startpos)
- if not data then
- if request.body then
- request.callback(t_concat(request.body));
+local function _formencodepart(s)
+ return s and (s:gsub("%W", function (c)
+ if c ~= " " then
+ return format("%%%02x", c:byte());
else
- -- Error.. connection was closed prematurely
- request.callback(nil, "connection-closed");
+ return "+";
end
- destroy_request(request);
- return;
+ end));
+end
+function formencode(form)
+ local result = {};
+ for _, field in ipairs(form) do
+ t_insert(result, _formencodepart(field.name).."=".._formencodepart(field.value));
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(t_concat(request.body));
- 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);
+ return t_concat(result, "&");
+end
+
+local function request_reader(request, data, startpos)
+ if not request.parser then
+ 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);
+ 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(nil, "invalid-status-line", data);
- 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);
+ 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);
+ 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.write = req.handler.write;
+ req.handler, req.conn = server.wrapclient(socket.tcp(), req.host, req.port or 80, listener, "*a");
+ req.write = function (...) return req.handler:write(...); end
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);
-
- server.loop()
+
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()
+ listener.ondisconnect(request.handler, "closed");
end
end
projects / prosody.git / blobdiff