verse
981c8867f1fb
init.lua

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init.lua @ 280:981c8867f1fb

verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
author Matthew Wild <mwild1@gmail.com>
date Fri, 30 Mar 2012 03:09:59 +0100
parent 279:7a0aa3d055f4
child 281:1669dd08032a
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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caf260adc453 Beginning of new verse
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1
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ec6b0b94826c verse: Include LuaRocks packages if we can
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2 -- Use LuaRocks if available
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3 pcall(require, "luarocks.require");
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caf260adc453 Beginning of new verse
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a28540d4117a verse: Load LuaSec if possible
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5 -- Load LuaSec if available
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6 pcall(require, "ssl");
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9c96318913f7 Revert module names throughout to their Prosody equivalents
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8 local server = require "net.server";
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9 local events = require "util.events";
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d158c97556b4 verse: require('util.logger') (besides being correct, also fixes a silly bug when loading verse twice)
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10 local logger = require "util.logger";
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caf260adc453 Beginning of new verse
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12 module("verse", package.seeall);
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13 local verse = _M;
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cbcd45be11a8 verse: Expose net.server as verse.server
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14 _M.server = server;
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caf260adc453 Beginning of new verse
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16 local stream = {};
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17 stream.__index = stream;
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18 stream_mt = stream;
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caf260adc453 Beginning of new verse
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19
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372ddb5900d3 verse: Support for loading plugins
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20 verse.plugins = {};
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21
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22 function verse.init(...)
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23 for i=1,select("#", ...) do
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24 local ok = pcall(require, "verse."..select(i,...));
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25 if not ok then
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26 error("Verse connection module not found: verse."..select(i,...));
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27 end
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28 end
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29 return verse;
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30 end
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32
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65a0d3fcbbad verse: Switch connection ids to be a simple incrementing integer
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33 local max_id = 0;
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34
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37396504de5f verse: Multiple changes to allow controlling logging for both verse and streams
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35 function verse.new(logger, base)
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36 local t = setmetatable(base or {}, stream);
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37 max_id = max_id + 1;
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38 t.id = tostring(max_id);
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9b6fca5d9a02 verse, squishy: Port to Prosody's util.logger. Adds new function, verse.set_log_handler(handler, levels).
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39 t.logger = logger or verse.new_logger("stream"..t.id);
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40 t.events = events.new();
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41 t.plugins = {};
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42 t.verse = verse;
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43 return t;
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caf260adc453 Beginning of new verse
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44 end
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45
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6006e6bb1c28 verse: Add verse.add_task(delay, callback) to add timer functions using util.timer
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46 verse.add_task = require "util.timer".add_task;
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48 verse.logger = logger.init; -- COMPAT: Deprecated
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d75a209e57fc verse: verse.logger() -> verse.new_logger()
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49 verse.new_logger = logger.init;
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b46921de1e03 verse: Add verse.log() to log a message using the default logger. Also add verse.set_error_handler() to, er, set an error handler.
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50 verse.log = verse.logger("verse");
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51
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931bf313c691 verse: Format messages before passing them to custom log handler
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52 local function format(format, ...)
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53 local n, arg, maxn = 0, { ... }, select('#', ...);
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54 return (format:gsub("%%(.)", function (c) if n <= maxn then n = n + 1; return tostring(arg[n]); end end));
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55 end
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56
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57 function verse.set_log_handler(log_handler, levels)
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58 levels = levels or { "debug", "info", "warn", "error" };
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59 logger.reset();
279
7a0aa3d055f4 verse: Accept a file object as a log handler, and automatically call :write() on it with a formatted message
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60 if io.type(log_handler) == "file" then
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61 local f = log_handler;
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62 function log_handler(name, level, message)
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63 f:write(name, "\t", level, "\t", message, "\n");
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64 end
241
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65 end
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e27bf761bea6 verse: set_log_handler(): Allow nil to be passed for log_handler to disable logging (the default).
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66 if log_handler then
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67 local function _log_handler(name, level, message, ...)
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68 return log_handler(name, level, format(message, ...));
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69 end
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e27bf761bea6 verse: set_log_handler(): Allow nil to be passed for log_handler to disable logging (the default).
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70 for i, level in ipairs(levels) do
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71 logger.add_level_sink(level, _log_handler);
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72 end
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ea753bc81a33 verse: Add verse.filter_log(levels, logger) to filter a logger for certain levels
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73 end
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74 end
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75
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ab4773b0ef5e verse: Add default log handler for errors
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76 function _default_log_handler(name, level, message)
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77 return io.stderr:write(name, "\t", level, "\t", message, "\n");
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78 end
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79 verse.set_log_handler(_default_log_handler, { "error" });
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81 local function error_handler(err)
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82 verse.log("error", "Error: %s", err);
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83 verse.log("error", "Traceback: %s", debug.traceback());
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84 end
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86 function verse.set_error_handler(new_error_handler)
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87 error_handler = new_error_handler;
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88 end
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89
0
caf260adc453 Beginning of new verse
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90 function verse.loop()
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fa3ddadb8364 verse: verse.loop() and new verse.step() use the new error handler to, er, handle errors.
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91 return xpcall(server.loop, error_handler);
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92 end
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93
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94 function verse.step()
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95 return xpcall(server.step, error_handler);
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caf260adc453 Beginning of new verse
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96 end
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97
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50a2e4fb0a16 verse: Add verse.quit() to exit the event loop
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98 function verse.quit()
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99 return server.setquitting(true);
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100 end
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101
280
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
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102 function stream:listen(host, port)
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103 host = host or "localhost";
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104 port = port or 0;
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105 local conn, err = server.addserver(host, port, new_listener(self, "server"), "*a");
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106 if conn then
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107 self:debug("Bound to %s:%s", host, port);
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108 self.server = conn;
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109 end
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110 return conn, err;
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111 end
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112
1
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113 function stream:connect(connect_host, connect_port)
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114 connect_host = connect_host or "localhost";
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115 connect_port = tonumber(connect_port) or 5222;
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caf260adc453 Beginning of new verse
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116
1
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117 -- Create and initiate connection
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118 local conn = socket.tcp()
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119 conn:settimeout(0);
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120 local success, err = conn:connect(connect_host, connect_port);
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121
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122 if not success and err ~= "timeout" then
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123 self:warn("connect() to %s:%d failed: %s", connect_host, connect_port, err);
135
8adf5fb27ce3 verse: Fire disconnected event even if connection fails instantly
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124 return self:event("disconnected", { reason = err }) or false, err;
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125 end
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126
59
829a0a495dd1 verse: Remove some useless comments
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127 local conn = server.wrapclient(conn, connect_host, connect_port, new_listener(self), "*a");
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caf260adc453 Beginning of new verse
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128 if not conn then
124
3659ba3b8dfa verse: Log error when connection fails instantly
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129 self:warn("connection initialisation failed: %s", err);
135
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130 return self:event("disconnected", { reason = err }) or false, err;
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131 end
280
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132 self:set_conn(conn);
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diff changeset
133 return true;
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Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
134 end
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
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parents: 279
diff changeset
135
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
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parents: 279
diff changeset
136 function stream:set_conn(conn)
0
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137 self.conn = conn;
163
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
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parents: 162
diff changeset
138 self.send = function (stream, data)
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
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parents: 162
diff changeset
139 self:event("outgoing", data);
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
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parents: 162
diff changeset
140 data = tostring(data);
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
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parents: 162
diff changeset
141 self:event("outgoing-raw", data);
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
142 return conn:write(data);
48a47bca9a63 verse: Change to set conn:send in only one place, and fire new events 'outgoing' and 'outgoing-raw'
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
143 end;
96
f0aec10023aa verse: Return true from connect() on success, add stream:close()
Matthew Wild <mwild1@gmail.com>
parents: 95
diff changeset
144 end
f0aec10023aa verse: Return true from connect() on success, add stream:close()
Matthew Wild <mwild1@gmail.com>
parents: 95
diff changeset
145
f0aec10023aa verse: Return true from connect() on success, add stream:close()
Matthew Wild <mwild1@gmail.com>
parents: 95
diff changeset
146 function stream:close()
132
b38397163737 verse: Log error and return when trying to close a closed connection
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parents: 126
diff changeset
147 if not self.conn then
b38397163737 verse: Log error and return when trying to close a closed connection
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parents: 126
diff changeset
148 verse.log("error", "Attempt to close disconnected connection - possibly a bug");
b38397163737 verse: Log error and return when trying to close a closed connection
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parents: 126
diff changeset
149 return;
b38397163737 verse: Log error and return when trying to close a closed connection
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parents: 126
diff changeset
150 end
96
f0aec10023aa verse: Return true from connect() on success, add stream:close()
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parents: 95
diff changeset
151 local on_disconnect = self.conn.disconnect();
f0aec10023aa verse: Return true from connect() on success, add stream:close()
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parents: 95
diff changeset
152 self.conn:close();
f0aec10023aa verse: Return true from connect() on success, add stream:close()
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parents: 95
diff changeset
153 on_disconnect(conn, reason);
1
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
154 end
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
155
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parents: 0
diff changeset
156 -- Logging functions
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parents: 0
diff changeset
157 function stream:debug(...)
238
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parents: 237
diff changeset
158 return self.logger("debug", ...);
1
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parents: 0
diff changeset
159 end
7c8d0a2fc004 Break client-specific code into verse.client module
Matthew Wild <mwild1@gmail.com>
parents: 0
diff changeset
160
258
94b1d9863dd9 verse: Add stream:info() for emitting info-level log message.
Kim Alvefur <zash@zash.se>
parents: 247
diff changeset
161 function stream:info(...)
94b1d9863dd9 verse: Add stream:info() for emitting info-level log message.
Kim Alvefur <zash@zash.se>
parents: 247
diff changeset
162 return self.logger("info", ...);
94b1d9863dd9 verse: Add stream:info() for emitting info-level log message.
Kim Alvefur <zash@zash.se>
parents: 247
diff changeset
163 end
94b1d9863dd9 verse: Add stream:info() for emitting info-level log message.
Kim Alvefur <zash@zash.se>
parents: 247
diff changeset
164
1
7c8d0a2fc004 Break client-specific code into verse.client module
Matthew Wild <mwild1@gmail.com>
parents: 0
diff changeset
165 function stream:warn(...)
238
9b6fca5d9a02 verse, squishy: Port to Prosody's util.logger. Adds new function, verse.set_log_handler(handler, levels).
Matthew Wild <mwild1@gmail.com>
parents: 237
diff changeset
166 return self.logger("warn", ...);
0
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parents:
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167 end
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parents:
diff changeset
168
1
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parents: 0
diff changeset
169 function stream:error(...)
238
9b6fca5d9a02 verse, squishy: Port to Prosody's util.logger. Adds new function, verse.set_log_handler(handler, levels).
Matthew Wild <mwild1@gmail.com>
parents: 237
diff changeset
170 return self.logger("error", ...);
94
b40465267fb5 verse: Add stream:set_loglevels()
Matthew Wild <mwild1@gmail.com>
parents: 64
diff changeset
171 end
b40465267fb5 verse: Add stream:set_loglevels()
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parents: 64
diff changeset
172
1
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
173 -- Event handling
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parents: 0
diff changeset
174 function stream:event(name, ...)
4
0ef21511c7ff Log debug message when firing an event
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parents: 3
diff changeset
175 self:debug("Firing event: "..tostring(name));
1
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
176 return self.events.fire_event(name, ...);
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
177 end
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
178
16
13444ae6e3c4 verse: Fix stream:hook() to pass additional parameters to the underlying hook(), so we don't strip priority
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parents: 4
diff changeset
179 function stream:hook(name, ...)
13444ae6e3c4 verse: Fix stream:hook() to pass additional parameters to the underlying hook(), so we don't strip priority
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parents: 4
diff changeset
180 return self.events.add_handler(name, ...);
1
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
181 end
7c8d0a2fc004 Break client-specific code into verse.client module
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parents: 0
diff changeset
182
53
091ff10eb51c verse: Add stream:unhook(event_name, handler)
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parents: 45
diff changeset
183 function stream:unhook(name, handler)
091ff10eb51c verse: Add stream:unhook(event_name, handler)
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parents: 45
diff changeset
184 return self.events.remove_handler(name, handler);
091ff10eb51c verse: Add stream:unhook(event_name, handler)
Matthew Wild <mwild1@gmail.com>
parents: 45
diff changeset
185 end
091ff10eb51c verse: Add stream:unhook(event_name, handler)
Matthew Wild <mwild1@gmail.com>
parents: 45
diff changeset
186
98
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
187 function verse.eventable(object)
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
188 object.events = events.new();
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
189 object.hook, object.unhook = stream.hook, stream.unhook;
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
190 local fire_event = object.events.fire_event;
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
191 function object:event(name, ...)
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
192 return fire_event(name, ...);
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
193 end
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
194 return object;
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
195 end
1dccff7df2d5 verse: Add verse.eventable() to give a passed object :event() and :hook()/:unhook() methods and return it again
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parents: 96
diff changeset
196
3
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
197 function stream:add_plugin(name)
173
3112a9e450ac verse: Make add_plugin only load a plugin once per stream
Matthew Wild <mwild1@gmail.com>
parents: 163
diff changeset
198 if self.plugins[name] then return true; end
3
372ddb5900d3 verse: Support for loading plugins
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parents: 2
diff changeset
199 if require("verse.plugins."..name) then
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
200 local ok, err = verse.plugins[name](self);
162
2950079d4319 verse: Consider a plugin as failed to load only if it returns false
Matthew Wild <mwild1@gmail.com>
parents: 142
diff changeset
201 if ok ~= false then
3
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
202 self:debug("Loaded %s plugin", name);
173
3112a9e450ac verse: Make add_plugin only load a plugin once per stream
Matthew Wild <mwild1@gmail.com>
parents: 163
diff changeset
203 self.plugins[name] = true;
3
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
204 else
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
205 self:warn("Failed to load %s plugin: %s", name, err);
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
206 end
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
207 end
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
208 return self;
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
209 end
372ddb5900d3 verse: Support for loading plugins
Matthew Wild <mwild1@gmail.com>
parents: 2
diff changeset
210
1
7c8d0a2fc004 Break client-specific code into verse.client module
Matthew Wild <mwild1@gmail.com>
parents: 0
diff changeset
211 -- Listener factory
0
caf260adc453 Beginning of new verse
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parents:
diff changeset
212 function new_listener(stream)
caf260adc453 Beginning of new verse
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parents:
diff changeset
213 local conn_listener = {};
caf260adc453 Beginning of new verse
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parents:
diff changeset
214
54
1a2a3d598254 verse: Take advantage of server.lua's new onconnect callback for a more robust "connected" event
Matthew Wild <mwild1@gmail.com>
parents: 53
diff changeset
215 function conn_listener.onconnect(conn)
280
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
216 if stream.server then
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
217 stream:debug("foo");
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
218 local client = verse.new();
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
219 conn:setlistener(new_listener(client));
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
220 client:set_conn(conn);
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
221 stream:event("connected", { client = client });
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
222 else
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
223 stream.connected = true;
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
224 stream:event("connected");
981c8867f1fb verse: Add :listen(host, port) to Verse objects ("connected" event is fired with new clients)
Matthew Wild <mwild1@gmail.com>
parents: 279
diff changeset
225 end
54
1a2a3d598254 verse: Take advantage of server.lua's new onconnect callback for a more robust "connected" event
Matthew Wild <mwild1@gmail.com>
parents: 53
diff changeset
226 end
1a2a3d598254 verse: Take advantage of server.lua's new onconnect callback for a more robust "connected" event
Matthew Wild <mwild1@gmail.com>
parents: 53
diff changeset
227
20
972066e06f4c verse: Update for new server connection API
Matthew Wild <mwild1@gmail.com>
parents: 17
diff changeset
228 function conn_listener.onincoming(conn, data)
54
1a2a3d598254 verse: Take advantage of server.lua's new onconnect callback for a more robust "connected" event
Matthew Wild <mwild1@gmail.com>
parents: 53
diff changeset
229 stream:event("incoming-raw", data);
0
caf260adc453 Beginning of new verse
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parents:
diff changeset
230 end
caf260adc453 Beginning of new verse
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parents:
diff changeset
231
20
972066e06f4c verse: Update for new server connection API
Matthew Wild <mwild1@gmail.com>
parents: 17
diff changeset
232 function conn_listener.ondisconnect(conn, err)
0
caf260adc453 Beginning of new verse
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parents:
diff changeset
233 stream.connected = false;
caf260adc453 Beginning of new verse
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parents:
diff changeset
234 stream:event("disconnected", { reason = err });
caf260adc453 Beginning of new verse
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235 end
55
163beb198646 verse: Add "drained" event to signal when send buffer is empty (new server.lua feature)
Matthew Wild <mwild1@gmail.com>
parents: 54
diff changeset
236
163beb198646 verse: Add "drained" event to signal when send buffer is empty (new server.lua feature)
Matthew Wild <mwild1@gmail.com>
parents: 54
diff changeset
237 function conn_listener.ondrain(conn)
163beb198646 verse: Add "drained" event to signal when send buffer is empty (new server.lua feature)
Matthew Wild <mwild1@gmail.com>
parents: 54
diff changeset
238 stream:event("drained");
163beb198646 verse: Add "drained" event to signal when send buffer is empty (new server.lua feature)
Matthew Wild <mwild1@gmail.com>
parents: 54
diff changeset
239 end
0
caf260adc453 Beginning of new verse
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240
60
1f47ddab3499 verse: Fire "status" event for connection status changes (notably SSL handshake complete)
Matthew Wild <mwild1@gmail.com>
parents: 59
diff changeset
241 function conn_listener.onstatus(conn, new_status)
1f47ddab3499 verse: Fire "status" event for connection status changes (notably SSL handshake complete)
Matthew Wild <mwild1@gmail.com>
parents: 59
diff changeset
242 stream:event("status", new_status);
1f47ddab3499 verse: Fire "status" event for connection status changes (notably SSL handshake complete)
Matthew Wild <mwild1@gmail.com>
parents: 59
diff changeset
243 end
1f47ddab3499 verse: Fire "status" event for connection status changes (notably SSL handshake complete)
Matthew Wild <mwild1@gmail.com>
parents: 59
diff changeset
244
0
caf260adc453 Beginning of new verse
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parents:
diff changeset
245 return conn_listener;
caf260adc453 Beginning of new verse
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 end
caf260adc453 Beginning of new verse
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247
caf260adc453 Beginning of new verse
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248 return verse;