Annotate

tools/xep227toprosody.lua @ 10067:598befab492e

mod_admin_telnet: Check for simple commands before executing in sandbox This makes fixing yield over pcall boundry issue easier since it would have jumped to the thread error handler instead of proceeding to checking for simple commands.
author Kim Alvefur <zash@zash.se>
date Fri, 10 May 2019 01:28:09 +0200
parent 6870:d5b416070f70
child 11680:a3d3fb9d0d43
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1 #!/usr/bin/env lua
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2 -- Prosody IM
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3 -- Copyright (C) 2008-2009 Matthew Wild
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4 -- Copyright (C) 2008-2009 Waqas Hussain
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5 -- Copyright (C) 2010 Stefan Gehn
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6 --
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7 -- This project is MIT/X11 licensed. Please see the
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8 -- COPYING file in the source package for more information.
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9 --
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10
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11 -- FIXME: XEP-0227 supports XInclude but luaexpat does not
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12 --
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13 -- XEP-227 elements and their current level of support:
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14 -- Hosts : supported
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15 -- Users : supported
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16 -- Rosters : supported, needs testing
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17 -- Offline Messages : supported, needs testing
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18 -- Private XML Storage : supported, needs testing
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19 -- vCards : supported, needs testing
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20 -- Privacy Lists: UNSUPPORTED
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21 -- http://xmpp.org/extensions/xep-0227.html#privacy-lists
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22 -- mod_privacy uses dm.load(username, host, "privacy"); and stores stanzas 1:1
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23 -- Incoming Subscription Requests : supported
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24
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25 package.path = package.path..";../?.lua";
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26 package.cpath = package.cpath..";../?.so"; -- needed for util.pposix used in datamanager
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27
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28 local my_name = arg[0];
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29 if my_name:match("[/\\]") then
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30 package.path = package.path..";"..my_name:gsub("[^/\\]+$", "../?.lua");
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31 package.cpath = package.cpath..";"..my_name:gsub("[^/\\]+$", "../?.so");
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32 end
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33
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34 -- ugly workaround for getting datamanager to work outside of prosody :(
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35 prosody = { };
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36 prosody.platform = "unknown";
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37 if os.getenv("WINDIR") then
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38 prosody.platform = "windows";
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39 elseif package.config:sub(1,1) == "/" then
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40 prosody.platform = "posix";
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41 end
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42
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43 local lxp = require "lxp";
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44 local st = require "util.stanza";
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45 local xmppstream = require "util.xmppstream";
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46 local new_xmpp_handlers = xmppstream.new_sax_handlers;
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47 local dm = require "util.datamanager"
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48 dm.set_data_path("data");
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49
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50 local ns_separator = xmppstream.ns_separator;
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51 local ns_pattern = xmppstream.ns_pattern;
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52
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53 local xmlns_xep227 = "http://www.xmpp.org/extensions/xep-0227.html#ns";
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54
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55 -----------------------------------------------------------------------
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56
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57 function store_vcard(username, host, stanza)
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58 -- create or update vCard for username@host
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59 local ret, err = dm.store(username, host, "vcard", st.preserialize(stanza));
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60 print("["..(err or "success").."] stored vCard: "..username.."@"..host);
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61 end
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62
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63 function store_password(username, host, password)
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64 -- create or update account for username@host
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65 local ret, err = dm.store(username, host, "accounts", {password = password});
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66 print("["..(err or "success").."] stored account: "..username.."@"..host.." = "..password);
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67 end
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68
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69 function store_roster(username, host, roster_items)
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70 -- fetch current roster-table for username@host if he already has one
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71 local roster = dm.load(username, host, "roster") or {};
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72 -- merge imported roster-items with loaded roster
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73 for item_tag in roster_items:childtags("item") do
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74 -- jid for this roster-item
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75 local item_jid = item_tag.attr.jid
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76 -- validate item stanzas
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77 if (item_jid ~= "") then
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78 -- prepare roster item
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79 -- TODO: is the subscription attribute optional?
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80 local item = {subscription = item_tag.attr.subscription, groups = {}};
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81 -- optional: give roster item a real name
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82 if item_tag.attr.name then
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83 item.name = item_tag.attr.name;
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84 end
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85 -- optional: iterate over group stanzas inside item stanza
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86 for group_tag in item_tag:childtags("group") do
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87 local group_name = group_tag:get_text();
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88 if (group_name ~= "") then
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89 item.groups[group_name] = true;
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90 else
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91 print("[error] invalid group stanza: "..group_tag:pretty_print());
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92 end
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93 end
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94 -- store item in roster
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95 roster[item_jid] = item;
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96 print("[success] roster entry: " ..username.."@"..host.." - "..item_jid);
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97 else
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98 print("[error] invalid roster stanza: " ..item_tag:pretty_print());
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99 end
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100
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101 end
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102 -- store merged roster-table
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103 local ret, err = dm.store(username, host, "roster", roster);
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104 print("["..(err or "success").."] stored roster: " ..username.."@"..host);
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105 end
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106
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107 function store_private(username, host, private_items)
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108 local private = dm.load(username, host, "private") or {};
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109 for _, ch in ipairs(private_items.tags) do
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110 --print("private :"..ch:pretty_print());
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111 private[ch.name..":"..ch.attr.xmlns] = st.preserialize(ch);
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112 print("[success] private item: " ..username.."@"..host.." - "..ch.name);
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113 end
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114 local ret, err = dm.store(username, host, "private", private);
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115 print("["..(err or "success").."] stored private: " ..username.."@"..host);
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116 end
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117
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118 function store_offline_messages(username, host, offline_messages)
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119 -- TODO: maybe use list_load(), append and list_store() instead
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120 -- of constantly reopening the file with list_append()?
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121 for ch in offline_messages:childtags("message", "jabber:client") do
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122 --print("message :"..ch:pretty_print());
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123 local ret, err = dm.list_append(username, host, "offline", st.preserialize(ch));
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124 print("["..(err or "success").."] stored offline message: " ..username.."@"..host.." - "..ch.attr.from);
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parents: 2508
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125 end
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126 end
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127
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128
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129 function store_subscription_request(username, host, presence_stanza)
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130 local from_bare = presence_stanza.attr.from;
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131
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132 -- fetch current roster-table for username@host if he already has one
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133 local roster = dm.load(username, host, "roster") or {};
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134
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135 local item = roster[from_bare];
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136 if item and (item.subscription == "from" or item.subscription == "both") then
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137 return; -- already subscribed, do nothing
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138 end
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139
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140 -- add to table of pending subscriptions
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141 if not roster.pending then roster.pending = {}; end
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142 roster.pending[from_bare] = true;
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143
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144 -- store updated roster-table
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145 local ret, err = dm.store(username, host, "roster", roster);
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146 print("["..(err or "success").."] stored subscription request: " ..username.."@"..host.." - "..from_bare);
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147 end
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148
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149 -----------------------------------------------------------------------
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150
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151 local curr_host = "";
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152 local user_name = "";
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153
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154
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155 local cb = {
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156 stream_tag = "user",
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157 stream_ns = xmlns_xep227,
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158 };
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159 function cb.streamopened(session, attr)
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160 session.notopen = false;
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161 user_name = attr.name;
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162 store_password(user_name, curr_host, attr.password);
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163 end
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164 function cb.streamclosed(session)
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165 session.notopen = true;
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166 user_name = "";
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167 end
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168 function cb.handlestanza(session, stanza)
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169 --print("Parsed stanza "..stanza.name.." xmlns: "..(stanza.attr.xmlns or ""));
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170 if (stanza.name == "vCard") and (stanza.attr.xmlns == "vcard-temp") then
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171 store_vcard(user_name, curr_host, stanza);
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172 elseif (stanza.name == "query") then
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173 if (stanza.attr.xmlns == "jabber:iq:roster") then
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174 store_roster(user_name, curr_host, stanza);
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175 elseif (stanza.attr.xmlns == "jabber:iq:private") then
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176 store_private(user_name, curr_host, stanza);
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177 end
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178 elseif (stanza.name == "offline-messages") then
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179 store_offline_messages(user_name, curr_host, stanza);
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180 elseif (stanza.name == "presence") and (stanza.attr.xmlns == "jabber:client") then
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181 store_subscription_request(user_name, curr_host, stanza);
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182 else
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183 print("UNHANDLED stanza "..stanza.name.." xmlns: "..(stanza.attr.xmlns or ""));
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184 end
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185 end
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186
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187 local user_handlers = new_xmpp_handlers({ notopen = true }, cb);
2507
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188
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189 -----------------------------------------------------------------------
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190
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191 local lxp_handlers = {
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192 --count = 0
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193 };
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194
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195 -- TODO: error handling for invalid opening elements if curr_host is empty
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196 function lxp_handlers.StartElement(parser, elementname, attributes)
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197 local curr_ns, name = elementname:match(ns_pattern);
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198 if name == "" then
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199 curr_ns, name = "", curr_ns;
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200 end
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201 --io.write("+ ", string.rep(" ", count), name, " (", curr_ns, ")", "\n")
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202 --count = count + 1;
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203 if curr_host ~= "" then
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204 -- forward to xmlhandlers
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parents: 5696
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205 user_handlers.StartElement(parser, elementname, attributes);
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parents: 3709
diff changeset
206 elseif (curr_ns == xmlns_xep227) and (name == "host") then
2507
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207 curr_host = attributes["jid"]; -- start of host element
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208 print("Begin parsing host "..curr_host);
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59fbe4536c69 tools/xep227toprosody.lua: Rename ns_xep227 to xmlns_xep227 for consistency with main Prosody code
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parents: 3709
diff changeset
209 elseif (curr_ns ~= xmlns_xep227) or (name ~= "server-data") then
2507
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210 io.stderr:write("Unhandled XML element: ", name, "\n");
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211 os.exit(1);
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212 end
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213 end
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214
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215 -- TODO: error handling for invalid closing elements if host is empty
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216 function lxp_handlers.EndElement(parser, elementname)
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217 local curr_ns, name = elementname:match(ns_pattern);
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218 if name == "" then
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219 curr_ns, name = "", curr_ns;
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220 end
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221 --count = count - 1;
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222 --io.write("- ", string.rep(" ", count), name, " (", curr_ns, ")", "\n")
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223 if curr_host ~= "" then
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parents: 3709
diff changeset
224 if (curr_ns == xmlns_xep227) and (name == "host") then
2507
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225 print("End parsing host "..curr_host);
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Waqas Hussain <waqas20@gmail.com>
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226 curr_host = "" -- end of host element
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Waqas Hussain <waqas20@gmail.com>
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227 else
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228 -- forward to xmlhandlers
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parents: 5696
diff changeset
229 user_handlers.EndElement(parser, elementname);
2507
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230 end
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parents: 3709
diff changeset
231 elseif (curr_ns ~= xmlns_xep227) or (name ~= "server-data") then
2507
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232 io.stderr:write("Unhandled XML element: ", name, "\n");
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233 os.exit(1);
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234 end
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235 end
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Waqas Hussain <waqas20@gmail.com>
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236
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Waqas Hussain <waqas20@gmail.com>
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237 function lxp_handlers.CharacterData(parser, string)
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Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
238 if curr_host ~= "" then
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Waqas Hussain <waqas20@gmail.com>
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239 -- forward to xmlhandlers
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diff changeset
240 user_handlers.CharacterData(parser, string);
2507
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241 end
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242 end
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243
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244 -----------------------------------------------------------------------
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245
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246 local arg = ...;
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247 local help = "/? -? ? /h -h /help -help --help";
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248 if not arg or help:find(arg, 1, true) then
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249 print([[XEP-227 importer for Prosody
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Waqas Hussain <waqas20@gmail.com>
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250
a8ce11633597 xep227toprosody: Initial commit (thanks stefan).
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251 Usage: xep227toprosody.lua filename.xml
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252
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253 ]]);
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254 os.exit(1);
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255 end
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256
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257 local file = io.open(arg);
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258 if not file then
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259 io.stderr:write("Could not open file: ", arg, "\n");
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260 os.exit(0);
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261 end
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262
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263 local parser = lxp.new(lxp_handlers, ns_separator);
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264 for l in file:lines() do
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265 parser:parse(l);
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266 end
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267 parser:parse();
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268 parser:close();
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269 file:close();