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net/http.lua @ 7282:29eedc776bbd
Merge 0.10->trunk
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 14 Mar 2016 18:27:32 +0100 |
parent | 6826:17a4e89a4780 |
child | 7465:f1923f00b7de |
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-- 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 b64 = require "util.encodings".base64.encode; local url = require "socket.url" local httpstream_new = require "net.http.parser".new; local util_http = require "util.http"; local ssl_available = pcall(require, "ssl"); local server = require "net.server" local t_insert, t_concat = table.insert, table.concat; local pairs = pairs; local tonumber, tostring, xpcall, select, traceback = tonumber, tostring, xpcall, select, debug.traceback; local assert, error = assert, error local log = require "util.logger".init("http"); local _ENV = nil; 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 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 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, err); end requests[conn] = nil; end function listener.ondetach(conn) requests[conn] = nil; end local function destroy_request(request) if request.conn then request.conn = nil; request.handler:close() end end local function request_reader(request, data, err) if not request.parser then local function error_cb(reason) if request.callback then request.callback(reason or "connection-closed", 0, request); request.callback = nil; end destroy_request(request); end if not data then error_cb(err); return; end local function success_cb(r) if request.callback then request.callback(r.body, r.code, r, request); request.callback = nil; end destroy_request(request); end local function options_cb() return request; end request.parser = httpstream_new(success_cb, error_cb, "client", options_cb); end request.parser:feed(data); end local function handleerr(err) log("error", "Traceback[http]: %s", traceback(tostring(err), 2)); end local 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 method, headers, body; local host, port = req.host, req.port; local host_header = host; if (port == "80" and req.scheme == "http") or (port == "443" and req.scheme == "https") then port = nil; elseif port then host_header = host_header..":"..port; end headers = { ["Host"] = host_header; ["User-Agent"] = "Prosody XMPP Server"; }; if req.userinfo then headers["Authorization"] = "Basic "..b64(req.userinfo); end if ex then req.onlystatus = ex.onlystatus; body = ex.body; if body then 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 end -- Attach to request object req.method, req.headers, req.body = method, headers, body; 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_number = port and tonumber(port) or (using_https and 443 or 80); local sslctx = false; if using_https then sslctx = ex and ex.sslctx or { mode = "client", protocol = "sslv23", options = { "no_sslv2", "no_sslv3" } }; end local handler, conn = server.addclient(host, port_number, listener, "*a", sslctx) if not handler then callback(nil, 0, req); return nil, conn; end req.handler, req.conn = handler, conn req.write = function (...) return req.handler:write(...); end 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"; requests[req.handler] = req; return req; end return { request = request; -- COMPAT urlencode = util_http.urlencode; urldecode = util_http.urldecode; formencode = util_http.formencode; formdecode = util_http.formdecode; };