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c0d221b0c94c
net/http.lua

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net/http.lua @ 6518:c0d221b0c94c

mod_saslauth: Break out tls-unique channel binding callback so it is instantiated once
author Kim Alvefur <zash@zash.se>
date Wed, 19 Nov 2014 14:44:41 +0100
parent 6501:71b6e8b48a12
child 6502:8fed6ea12098
child 6780:647adfd8f738
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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 function listener.ondetach(conn)
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76 requests[conn] = nil;
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77 end
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78
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79 local function request_reader(request, data, err)
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80 if not request.parser then
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81 local function error_cb(reason)
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82 if request.callback then
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83 request.callback(reason or "connection-closed", 0, request);
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84 request.callback = nil;
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85 end
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86 destroy_request(request);
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87 end
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88
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89 if not data then
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90 error_cb(err);
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91 return;
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92 end
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93
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94 local function success_cb(r)
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95 if request.callback then
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96 request.callback(r.body, r.code, r, request);
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97 request.callback = nil;
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98 end
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99 destroy_request(request);
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100 end
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101 local function options_cb()
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102 return request;
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103 end
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104 request.parser = httpstream_new(success_cb, error_cb, "client", options_cb);
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105 end
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106 request.parser:feed(data);
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107 end
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108
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109 local function handleerr(err) log("error", "Traceback[http]: %s", traceback(tostring(err), 2)); end
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110 function request(u, ex, callback)
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111 local req = url.parse(u);
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112
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113 if not (req and req.host) then
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114 callback(nil, 0, req);
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115 return nil, "invalid-url";
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116 end
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117
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118 if not req.path then
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119 req.path = "/";
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120 end
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121
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122 local method, headers, body;
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123
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124 local host, port = req.host, req.port;
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125 local host_header = host;
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126 if (port == "80" and req.scheme == "http")
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127 or (port == "443" and req.scheme == "https") then
520671c3159c net.http: Include port number (when non-standard) in the Host header of outgoing requests, as per the HTTP RFC
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128 port = nil;
520671c3159c net.http: Include port number (when non-standard) in the Host header of outgoing requests, as per the HTTP RFC
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129 elseif port then
520671c3159c net.http: Include port number (when non-standard) in the Host header of outgoing requests, as per the HTTP RFC
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130 host_header = host_header..":"..port;
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131 end
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132
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133 headers = {
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134 ["Host"] = host_header;
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135 ["User-Agent"] = "Prosody XMPP Server";
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136 };
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137
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138 if req.userinfo then
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1777271a1ec0 net.http: Use base64 from util.encodings instead of luasocket
Kim Alvefur <zash@zash.se>
parents: 4865
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139 headers["Authorization"] = "Basic "..b64(req.userinfo);
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140 end
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141
616
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142 if ex then
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143 req.onlystatus = ex.onlystatus;
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144 body = ex.body;
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145 if body then
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3578ff5d3674 net.http: Remove extra space after method in request status line for POST.
Waqas Hussain <waqas20@gmail.com>
parents: 4356
diff changeset
146 method = "POST";
4352
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147 headers["Content-Length"] = tostring(#body);
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148 headers["Content-Type"] = "application/x-www-form-urlencoded";
616
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149 end
4351
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150 if ex.method then method = ex.method; end
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Matthew Wild <mwild1@gmail.com>
parents: 4350
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151 if ex.headers then
3f414091a008 net.http: Whitespace fixes
Matthew Wild <mwild1@gmail.com>
parents: 4350
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152 for k, v in pairs(ex.headers) do
3f414091a008 net.http: Whitespace fixes
Matthew Wild <mwild1@gmail.com>
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153 headers[k] = v;
3f414091a008 net.http: Whitespace fixes
Matthew Wild <mwild1@gmail.com>
parents: 4350
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154 end
3f414091a008 net.http: Whitespace fixes
Matthew Wild <mwild1@gmail.com>
parents: 4350
diff changeset
155 end
616
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156 end
5776
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5714
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157
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158 -- Attach to request object
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parents: 4351
diff changeset
159 req.method, req.headers, req.body = method, headers, body;
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160
4352
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parents: 4351
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161 local using_https = req.scheme == "https";
5448
cbe9fa2d3787 net.http: Throw error when connecting to a http:// URL without LuaSec available
Matthew Wild <mwild1@gmail.com>
parents: 5354
diff changeset
162 if using_https and not ssl_available then
cbe9fa2d3787 net.http: Throw error when connecting to a http:// URL without LuaSec available
Matthew Wild <mwild1@gmail.com>
parents: 5354
diff changeset
163 error("SSL not available, unable to contact https URL");
cbe9fa2d3787 net.http: Throw error when connecting to a http:// URL without LuaSec available
Matthew Wild <mwild1@gmail.com>
parents: 5354
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164 end
5714
520671c3159c net.http: Include port number (when non-standard) in the Host header of outgoing requests, as per the HTTP RFC
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parents: 5505
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165 local port_number = port and tonumber(port) or (using_https and 443 or 80);
5776
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parents: 5714
diff changeset
166
4352
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parents: 4351
diff changeset
167 -- Connect the socket, and wrap it with net.server
912a49b1c4e3 net.http, httpclient_listener: Move request sending from net.http to onconnect() handler, and add support for HTTPS requests to net.http
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parents: 4351
diff changeset
168 local conn = socket.tcp();
912a49b1c4e3 net.http, httpclient_listener: Move request sending from net.http to onconnect() handler, and add support for HTTPS requests to net.http
Matthew Wild <mwild1@gmail.com>
parents: 4351
diff changeset
169 conn:settimeout(10);
5714
520671c3159c net.http: Include port number (when non-standard) in the Host header of outgoing requests, as per the HTTP RFC
Matthew Wild <mwild1@gmail.com>
parents: 5505
diff changeset
170 local ok, err = conn:connect(host, port_number);
616
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Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 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
172 callback(nil, 0, req);
616
69bc5782b25e Non-blocking HTTP requests (adding net.http)
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parents:
diff changeset
173 return nil, err;
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 end
5776
bd0ff8ae98a8 Remove all trailing whitespace
Florian Zeitz <florob@babelmonkeys.de>
parents: 5714
diff changeset
175
5353
8c3f28f5c1c1 net.http: Allow passing an SSL context or options table to be used for HTTPS requests (thanks daurnimator)
Matthew Wild <mwild1@gmail.com>
parents: 4977
diff changeset
176 local sslctx = false;
8c3f28f5c1c1 net.http: Allow passing an SSL context or options table to be used for HTTPS requests (thanks daurnimator)
Matthew Wild <mwild1@gmail.com>
parents: 4977
diff changeset
177 if using_https then
6496
e4b998ffc922 certmanager, net.http: Disable SSLv3 by default
Matthew Wild <mwild1@gmail.com>
parents: 6380
diff changeset
178 sslctx = ex and ex.sslctx or { mode = "client", protocol = "sslv23", options = { "no_sslv2", "no_sslv3" } };
5353
8c3f28f5c1c1 net.http: Allow passing an SSL context or options table to be used for HTTPS requests (thanks daurnimator)
Matthew Wild <mwild1@gmail.com>
parents: 4977
diff changeset
179 end
8c3f28f5c1c1 net.http: Allow passing an SSL context or options table to be used for HTTPS requests (thanks daurnimator)
Matthew Wild <mwild1@gmail.com>
parents: 4977
diff changeset
180
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
181 req.handler, req.conn = assert(server.wrapclient(conn, host, port_number, listener, "*a", sslctx));
4352
912a49b1c4e3 net.http, httpclient_listener: Move request sending from net.http to onconnect() handler, and add support for HTTPS requests to net.http
Matthew Wild <mwild1@gmail.com>
parents: 4351
diff changeset
182 req.write = function (...) return req.handler:write(...); end
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Florian Zeitz <florob@babelmonkeys.de>
parents: 5714
diff changeset
183
4471
ea24d73e6c94 net.http: Pass response object to callbacks (feels hacky, should this be passed *instead of* the request?)
Matthew Wild <mwild1@gmail.com>
parents: 4369
diff changeset
184 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
616
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parents:
diff changeset
185 req.reader = request_reader;
678
1859edec2237 Protected call for HTTP request callbacks, to catch errors
Matthew Wild <mwild1@gmail.com>
parents: 677
diff changeset
186 req.state = "status";
4351
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Matthew Wild <mwild1@gmail.com>
parents: 4350
diff changeset
187
4557
2abe4e541d52 net.http, httpclient_listener: Merge listener into net.http
Matthew Wild <mwild1@gmail.com>
parents: 4471
diff changeset
188 requests[req.handler] = req;
616
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parents:
diff changeset
189 return req;
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
190 end
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192 function destroy_request(request)
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
193 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
194 request.conn = nil;
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
195 request.handler:close()
616
69bc5782b25e Non-blocking HTTP requests (adding net.http)
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parents:
diff changeset
196 end
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197 end
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198
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)
Matthew Wild <mwild1@gmail.com>
parents: 5448
diff changeset
199 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)
Matthew Wild <mwild1@gmail.com>
parents: 5448
diff changeset
200 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)
Matthew Wild <mwild1@gmail.com>
parents: 5448
diff changeset
201
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)
Matthew Wild <mwild1@gmail.com>
parents: 5448
diff changeset
202 _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)
Matthew Wild <mwild1@gmail.com>
parents: 5448
diff changeset
203 _M.formencode, _M.formdecode = formencode, formdecode;
616
69bc5782b25e Non-blocking HTTP requests (adding net.http)
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parents:
diff changeset
204
69bc5782b25e Non-blocking HTTP requests (adding net.http)
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 return _M;