prosody
0.9.4
net/http.lua

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net/http.lua @ 6050:5d73412aa1ba 0.9.4

Merge
author Matthew Wild <mwild1@gmail.com>
date Tue, 01 Apr 2014 16:03:21 +0100
parent 5948:1341384628ec
child 5950:bd1d1c29a7e7
child 6380:4220ffb87b22
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rev   line source
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9 local socket = require "socket"
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10 local b64 = require "util.encodings".base64.encode;
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11 local url = require "socket.url"
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712dbe1a0146 net.http: Switch from util.httpstream to net.http.parser, introduces small but backwards-incompatible API changes - see http://prosody.im/doc/developers/http
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12 local httpstream_new = require "net.http.parser".new;
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13 local util_http = require "util.http";
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14
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15 local ssl_available = pcall(require, "ssl");
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16
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17 local server = require "net.server"
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18
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19 local t_insert, t_concat = table.insert, table.concat;
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20 local pairs = pairs;
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21 local tonumber, tostring, xpcall, select, traceback =
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22 tonumber, tostring, xpcall, select, debug.traceback;
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23 local assert, error = assert, error
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24
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25 local log = require "util.logger".init("http");
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26
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27 module "http"
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28
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29 local requests = {}; -- Open requests
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30
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31 local listener = { default_port = 80, default_mode = "*a" };
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32
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33 function listener.onconnect(conn)
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34 local req = requests[conn];
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35 -- Send the request
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36 local request_line = { req.method or "GET", " ", req.path, " HTTP/1.1\r\n" };
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37 if req.query then
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38 t_insert(request_line, 4, "?"..req.query);
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39 end
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40
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41 conn:write(t_concat(request_line));
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42 local t = { [2] = ": ", [4] = "\r\n" };
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43 for k, v in pairs(req.headers) do
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44 t[1], t[3] = k, v;
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45 conn:write(t_concat(t));
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46 end
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47 conn:write("\r\n");
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48
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49 if req.body then
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50 conn:write(req.body);
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51 end
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52 end
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53
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54 function listener.onincoming(conn, data)
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55 local request = requests[conn];
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56
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57 if not request then
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58 log("warn", "Received response from connection %s with no request attached!", tostring(conn));
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59 return;
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60 end
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61
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62 if data and request.reader then
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63 request:reader(data);
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64 end
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65 end
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66
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67 function listener.ondisconnect(conn, err)
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68 local request = requests[conn];
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69 if request and request.conn then
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70 request:reader(nil, err);
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71 end
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72 requests[conn] = nil;
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73 end
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74
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75 local function request_reader(request, data, err)
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76 if not request.parser then
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77 local function error_cb(reason)
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78 if request.callback then
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79 request.callback(reason or "connection-closed", 0, request);
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80 request.callback = nil;
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81 end
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82 destroy_request(request);
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83 end
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84
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85 if not data then
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86 error_cb(err);
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87 return;
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88 end
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89
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90 local function success_cb(r)
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91 if request.callback then
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92 request.callback(r.body, r.code, r, request);
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93 request.callback = nil;
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94 end
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95 destroy_request(request);
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96 end
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97 local function options_cb()
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98 return request;
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99 end
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100 request.parser = httpstream_new(success_cb, error_cb, "client", options_cb);
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101 end
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102 request.parser:feed(data);
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103 end
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104
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105 local function handleerr(err) log("error", "Traceback[http]: %s", traceback(tostring(err), 2)); end
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106 function request(u, ex, callback)
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107 local req = url.parse(u);
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108
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109 if not (req and req.host) then
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110 callback(nil, 0, req);
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111 return nil, "invalid-url";
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112 end
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113
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114 if not req.path then
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115 req.path = "/";
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116 end
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117
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118 local method, headers, body;
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119
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120 local host, port = req.host, req.port;
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121 local host_header = host;
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122 if (port == "80" and req.scheme == "http")
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123 or (port == "443" and req.scheme == "https") then
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124 port = nil;
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125 elseif port then
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126 host_header = host_header..":"..port;
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127 end
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128
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129 headers = {
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130 ["Host"] = host_header;
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131 ["User-Agent"] = "Prosody XMPP Server";
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132 };
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133
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134 if req.userinfo then
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1777271a1ec0 net.http: Use base64 from util.encodings instead of luasocket
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135 headers["Authorization"] = "Basic "..b64(req.userinfo);
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136 end
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137
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138 if ex then
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139 req.onlystatus = ex.onlystatus;
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140 body = ex.body;
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141 if body then
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Waqas Hussain <waqas20@gmail.com>
parents: 4356
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142 method = "POST";
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143 headers["Content-Length"] = tostring(#body);
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144 headers["Content-Type"] = "application/x-www-form-urlencoded";
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145 end
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146 if ex.method then method = ex.method; end
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147 if ex.headers then
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148 for k, v in pairs(ex.headers) do
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149 headers[k] = v;
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150 end
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151 end
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152 end
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153
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154 -- Attach to request object
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155 req.method, req.headers, req.body = method, headers, body;
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156
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157 local using_https = req.scheme == "https";
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parents: 5354
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158 if using_https and not ssl_available then
cbe9fa2d3787 net.http: Throw error when connecting to a http:// URL without LuaSec available
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159 error("SSL not available, unable to contact https URL");
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160 end
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161 local port_number = port and tonumber(port) or (using_https and 443 or 80);
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162
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163 -- Connect the socket, and wrap it with net.server
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164 local conn = socket.tcp();
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165 conn:settimeout(10);
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166 local ok, err = conn:connect(host, port_number);
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167 if not ok and err ~= "timeout" then
903
6737d005a84a net.http: Don't throw error on invalid URLs. Fixes #56.
Matthew Wild <mwild1@gmail.com>
parents: 739
diff changeset
168 callback(nil, 0, req);
616
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169 return nil, err;
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170 end
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171
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172 local sslctx = false;
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173 if using_https then
5354
18ebc3874364 net.http: Disable SSLv2 support for HTTPS connections
Matthew Wild <mwild1@gmail.com>
parents: 5353
diff changeset
174 sslctx = ex and ex.sslctx or { mode = "client", protocol = "sslv23", options = { "no_sslv2" } };
5353
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parents: 4977
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175 end
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176
5948
1341384628ec net.http: assert() for socket creation success so it doesn't silently fail (thanks daurnimator)
Matthew Wild <mwild1@gmail.com>
parents: 5714
diff changeset
177 req.handler, req.conn = assert(server.wrapclient(conn, host, port_number, listener, "*a", sslctx));
4352
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178 req.write = function (...) return req.handler:write(...); end
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179
4471
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Matthew Wild <mwild1@gmail.com>
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180 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
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181 req.reader = request_reader;
678
1859edec2237 Protected call for HTTP request callbacks, to catch errors
Matthew Wild <mwild1@gmail.com>
parents: 677
diff changeset
182 req.state = "status";
4351
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diff changeset
183
4557
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Matthew Wild <mwild1@gmail.com>
parents: 4471
diff changeset
184 requests[req.handler] = req;
616
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185 return req;
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186 end
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187
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188 function destroy_request(request)
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189 if request.conn then
2673
61ae351c19b5 net.http: destroy_request(): Remove update for new server API, pass request.handler instead of request.conn to ondisconnect
Matthew Wild <mwild1@gmail.com>
parents: 2672
diff changeset
190 request.conn = nil;
61ae351c19b5 net.http: destroy_request(): Remove update for new server API, pass request.handler instead of request.conn to ondisconnect
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parents: 2672
diff changeset
191 request.handler:close()
616
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192 end
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parents:
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193 end
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parents:
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194
5458
84162b81c863 net.http, util.http: Move definitions of urlencode/decode and formencode/decode to util.http (possible to use them without unnecessary network-related dependencies)
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parents: 5448
diff changeset
195 local urlencode, urldecode = util_http.urlencode, util_http.urldecode;
84162b81c863 net.http, util.http: Move definitions of urlencode/decode and formencode/decode to util.http (possible to use them without unnecessary network-related dependencies)
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parents: 5448
diff changeset
196 local formencode, formdecode = util_http.formencode, util_http.formdecode;
84162b81c863 net.http, util.http: Move definitions of urlencode/decode and formencode/decode to util.http (possible to use them without unnecessary network-related dependencies)
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parents: 5448
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197
84162b81c863 net.http, util.http: Move definitions of urlencode/decode and formencode/decode to util.http (possible to use them without unnecessary network-related dependencies)
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parents: 5448
diff changeset
198 _M.urlencode, _M.urldecode = urlencode, urldecode;
84162b81c863 net.http, util.http: Move definitions of urlencode/decode and formencode/decode to util.http (possible to use them without unnecessary network-related dependencies)
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parents: 5448
diff changeset
199 _M.formencode, _M.formdecode = formencode, formdecode;
616
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200
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parents:
diff changeset
201 return _M;