mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-22 17:28:25 +01:00
c8e7a4f4ac
SVN Revision: 2516
684 lines
20 KiB
Erlang
684 lines
20 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : ejabberd_piefxis.erl
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%%% Author : Pablo Polvorin, Vidal Santiago Martinez
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%%% Purpose : XEP-0227: Portable Import/Export Format for XMPP-IM Servers
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%%% Created : 17 Jul 2008 by Pablo Polvorin <pablo.polvorin@process-one.net>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2009 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License
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%%% along with this program; if not, write to the Free Software
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%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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%%% 02111-1307 USA
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%%%
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%%%----------------------------------------------------------------------
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%%% Not implemented:
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%%% - write mod_piefxis with ejabberdctl commands
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%%% - Export from mod_offline_odbc.erl
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%%% - Export from mod_private_odbc.erl
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%%% - XEP-227: 6. Security Considerations
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%%% - Other schemas of XInclude are not tested, and may not be imported correctly.
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%%% - If a host has many users, split that host in XML files with 50 users each.
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%%%% Headers
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-module(ejabberd_piefxis).
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-export([import_file/1, export_server/1, export_host/2]).
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-record(parsing_state, {parser, host, dir}).
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-include("ejabberd.hrl").
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%%-include_lib("exmpp/include/exmpp.hrl").
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%%-include_lib("exmpp/include/exmpp_client.hrl").
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%% Copied from exmpp header files:
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-define(NS_ROSTER, "jabber:iq:roster").
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-define(NS_VCARD, "vcard-temp").
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-record(xmlcdata, {
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cdata = <<>>
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}).
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-record(xmlattr, {
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ns = undefined,
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name,
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value
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}).
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-record(xmlel, {
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ns = undefined,
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declared_ns = [],
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name,
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attrs = [],
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children = []
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}).
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-record(iq, {
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kind,
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type,
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id,
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ns,
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payload,
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error,
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lang,
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iq_ns
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}).
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-record(xmlendtag, {
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ns = undefined,
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name
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}).
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%% Copied from mod_private.erl
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-record(private_storage, {usns, xml}).
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%%-define(ERROR_MSG(M,Args),io:format(M,Args)).
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%%-define(INFO_MSG(M,Args),ok).
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-define(CHUNK_SIZE,1024*20). %20k
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-define(BTL, binary_to_list).
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-define(LTB, list_to_binary).
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-define(NS_XINCLUDE, 'http://www.w3.org/2001/XInclude').
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%%%==================================
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%%%% Import file
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import_file(FileName) ->
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_ = #xmlattr{}, %% this stupid line is only to prevent compilation warning about "recod xmlattr is unused"
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import_file(FileName, 2).
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import_file(FileName, RootDepth) ->
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try_start_exmpp(),
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Dir = filename:dirname(FileName),
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{ok, IO} = try_open_file(FileName),
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Parser = exmpp_xml:start_parser([{max_size,infinity},
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{root_depth, RootDepth},
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{emit_endtag,true}]),
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read_chunks(IO, #parsing_state{parser=Parser, dir=Dir}),
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file:close(IO),
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exmpp_xml:stop_parser(Parser).
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try_start_exmpp() ->
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try exmpp:start()
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catch
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error:{already_started, exmpp} -> ok;
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error:undef -> throw({error, exmpp_not_installed})
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end.
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try_open_file(FileName) ->
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case file:open(FileName,[read,binary]) of
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{ok, IO} -> {ok, IO};
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{error, enoent} -> throw({error, {file_not_found, FileName}})
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end.
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%%File could be large.. we read it in chunks
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read_chunks(IO,State) ->
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case file:read(IO,?CHUNK_SIZE) of
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{ok,Chunk} ->
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NewState = process_chunk(Chunk,State),
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read_chunks(IO,NewState);
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eof ->
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ok
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end.
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process_chunk(Chunk,S =#parsing_state{parser=Parser}) ->
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case exmpp_xml:parse(Parser,Chunk) of
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continue ->
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S;
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XMLElements ->
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process_elements(XMLElements,S)
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end.
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%%%==================================
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%%%% Process Elements
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process_elements(Elements,State) ->
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lists:foldl(fun process_element/2,State,Elements).
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%%%==================================
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%%%% Process Element
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process_element(El=#xmlel{name=user, ns=_XMLNS},
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State=#parsing_state{host=Host}) ->
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case add_user(El,Host) of
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{error, _Other} -> error;
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_ -> ok
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end,
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State;
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process_element(H=#xmlel{name=host},State) ->
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State#parsing_state{host=?BTL(exmpp_xml:get_attribute(H,"jid",none))};
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process_element(#xmlel{name='server-data'},State) ->
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State;
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process_element(El=#xmlel{name=include, ns=?NS_XINCLUDE}, State=#parsing_state{dir=Dir}) ->
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case exmpp_xml:get_attribute(El, href, none) of
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none ->
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ok;
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HrefB ->
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Href = binary_to_list(HrefB),
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%%?INFO_MSG("Parse also this file: ~n~p", [Href]),
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FileName = filename:join([Dir, Href]),
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import_file(FileName, 1),
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Href
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end,
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State;
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process_element(#xmlcdata{cdata = _CData},State) ->
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State;
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process_element(#xmlendtag{ns = _NS, name='server-data'},State) ->
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State;
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process_element(#xmlendtag{ns = _NS, name=_Name},State) ->
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State;
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process_element(El,State) ->
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io:format("Warning!: unknown element found: ~p ~n",[El]),
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State.
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%%%==================================
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%%%% Add user
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add_user(El, Domain) ->
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User = exmpp_xml:get_attribute(El,name,none),
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Password = exmpp_xml:get_attribute(El,password,none),
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add_user(El, Domain, ?BTL(User), ?BTL(Password)).
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%% @spec (El::xmlel(), Domain::string(), User::string(), Password::string())
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%% -> ok | {atomic, exists} | {error, not_allowed}
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%% @doc Add a new user to the database.
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%% If user already exists, it will be only updated.
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add_user(El, Domain, User, Password) ->
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case create_user(User,Password,Domain) of
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ok ->
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ok = exmpp_xml:foreach(
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fun(_,Child) ->
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populate_user(User,Domain,Child)
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end,
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El),
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ok;
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{atomic, exists} ->
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?INFO_MSG("User ~p@~p already exists, using stored profile...~n",
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[User, Domain]),
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io:format(""),
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ok = exmpp_xml:foreach(
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fun(_,Child) ->
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populate_user(User,Domain,Child)
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end,
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El);
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{error, Other} ->
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?ERROR_MSG("Error adding user ~s@~s: ~p~n", [User, Domain, Other])
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end.
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%% @spec (User::string(), Password::string(), Domain::string())
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%% -> ok | {atomic, exists} | {error, not_allowed}
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%% @doc Create a new user
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create_user(User,Password,Domain) ->
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case ejabberd_auth:try_register(User,Domain,Password) of
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{atomic,ok} -> ok;
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{atomic, exists} -> {atomic, exists};
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{error, not_allowed} -> {error, not_allowed};
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Other -> {error, Other}
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end.
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%%%==================================
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%%%% Populate user
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%% @spec (User::string(), Domain::string(), El::xml())
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%% -> ok | {error, not_found}
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%%
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%% @doc Add a new user from a XML file with a roster list.
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%%
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%% Example of a file:
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%% ```
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%% <?xml version='1.0' encoding='UTF-8'?>
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%% <server-data xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'>
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%% <host jid='localhost'>
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%% <user name='juliet' password='s3crEt'>
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%% <query xmlns='jabber:iq:roster'>
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%% <item jid='romeo@montague.net'
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%% name='Romeo'
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%% subscription='both'>
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%% <group>Friends</group>
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%% </item>
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%% </query>
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%% </user>
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%% </host>
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%% </server-data>
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%% '''
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populate_user(User,Domain,El=#xmlel{name='query', ns='jabber:iq:roster'}) ->
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io:format("Trying to add/update roster list...",[]),
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case loaded_module(Domain,[mod_roster_odbc,mod_roster]) of
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{ok, M} ->
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case M:set_items(User, Domain, exmpp_xml:xmlel_to_xmlelement(El)) of
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{atomic, ok} ->
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io:format(" DONE.~n",[]),
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ok;
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_ ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("Error trying to add a new user: ~s ~n",
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[exmpp_xml:document_to_list(El)]),
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{error, not_found}
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end;
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E -> io:format(" ERROR: ~p~n",[E]),
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?ERROR_MSG("No modules loaded [mod_roster, mod_roster_odbc] ~s ~n",
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[exmpp_xml:document_to_list(El)]),
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{error, not_found}
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end;
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%% @spec User = String with the user name
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%% Domain = String with a domain name
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%% El = Sub XML element with vCard tags values
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%% @ret ok | {error, not_found}
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%% @doc Read vcards from the XML and send it to the server
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%%
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%% Example:
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%% ```
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%% <?xml version='1.0' encoding='UTF-8'?>
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%% <server-data xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'>
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%% <host jid='localhost'>
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%% <user name='admin' password='s3crEt'>
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%% <vCard xmlns='vcard-temp'>
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%% <FN>Admin</FN>
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%% </vCard>
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%% </user>
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%% </host>
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%% </server-data>
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%% '''
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populate_user(User,Domain,El=#xmlel{name='vCard', ns='vcard-temp'}) ->
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io:format("Trying to add/update vCards...",[]),
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case loaded_module(Domain,[mod_vcard,mod_vcard_odbc]) of
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{ok, M} -> FullUser = jid_to_old_jid(exmpp_jid:make(User, Domain)),
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IQ = iq_to_old_iq(#iq{type = set, payload = El}),
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case M:process_sm_iq(FullUser, FullUser , IQ) of
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{error,_Err} ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("Error processing vcard ~s : ~p ~n",
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[exmpp_xml:document_to_list(El), _Err]);
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_ ->
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io:format(" DONE.~n",[]), ok
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end;
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_ ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("No modules loaded [mod_vcard, mod_vcard_odbc] ~s ~n",
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[exmpp_xml:document_to_list(El)]),
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{error, not_found}
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end;
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%% @spec User = String with the user name
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%% Domain = String with a domain name
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%% El = Sub XML element with offline messages values
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%% @ret ok | {error, not_found}
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%% @doc Read off-line message from the XML and send it to the server
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populate_user(User,Domain,El=#xmlel{name='offline-messages'}) ->
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io:format("Trying to add/update offline-messages...",[]),
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case loaded_module(Domain, [mod_offline, mod_offline_odbc]) of
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{ok, M} ->
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ok = exmpp_xml:foreach(
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fun (_Element, {xmlcdata, _}) ->
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ok;
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(_Element, Child) ->
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From = exmpp_xml:get_attribute(Child,from,none),
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FullFrom = jid_to_old_jid(exmpp_jid:parse(From)),
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FullUser = jid_to_old_jid(exmpp_jid:make(User,
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Domain)),
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OldChild = exmpp_xml:xmlel_to_xmlelement(Child),
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_R = M:store_packet(FullFrom, FullUser, OldChild)
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end, El), io:format(" DONE.~n",[]);
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_ ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("No modules loaded [mod_offline, mod_offline_odbc] ~s ~n",
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[exmpp_xml:document_to_list(El)]),
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{error, not_found}
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end;
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%% @spec User = String with the user name
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%% Domain = String with a domain name
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%% El = Sub XML element with private storage values
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%% @ret ok | {error, not_found}
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%% @doc Private storage parsing
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populate_user(User,Domain,El=#xmlel{name='query', ns='jabber:iq:private'}) ->
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io:format("Trying to add/update private storage...",[]),
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case loaded_module(Domain,[mod_private_odbc,mod_private]) of
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{ok, M} ->
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FullUser = jid_to_old_jid(exmpp_jid:make(User, Domain)),
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IQ = iq_to_old_iq(#iq{type = set,
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ns = 'jabber:iq:private',
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kind = request,
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iq_ns = 'jabberd:client',
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payload = El}),
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case M:process_sm_iq(FullUser, FullUser, IQ ) of
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{error, _Err} ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("Error processing private storage ~s : ~p ~n",
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[exmpp_xml:document_to_list(El), _Err]);
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_ -> io:format(" DONE.~n",[]), ok
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end;
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_ ->
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io:format(" ERROR.~n",[]),
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?ERROR_MSG("No modules loaded [mod_private, mod_private_odbc] ~s ~n",
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[exmpp_xml:document_to_list(El)]),
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{error, not_found}
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end;
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populate_user(_User, _Domain, #xmlcdata{cdata = _CData}) ->
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ok;
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populate_user(_User, _Domain, _El) ->
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ok.
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%%%==================================
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%%%% Utilities
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loaded_module(Domain,Options) ->
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LoadedModules = gen_mod:loaded_modules(Domain),
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case lists:filter(fun(Module) ->
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lists:member(Module, LoadedModules)
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end, Options) of
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[M|_] -> {ok, M};
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[] -> {error,not_found}
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end.
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jid_to_old_jid(Jid) ->
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{jid, to_list(exmpp_jid:node_as_list(Jid)),
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to_list(exmpp_jid:domain_as_list(Jid)),
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to_list(exmpp_jid:resource_as_list(Jid)),
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to_list(exmpp_jid:prep_node_as_list(Jid)),
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to_list(exmpp_jid:prep_domain_as_list(Jid)),
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to_list(exmpp_jid:prep_resource_as_list(Jid))}.
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iq_to_old_iq(#iq{id = ID, type = Type, lang = Lang, ns= NS, payload = El }) ->
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{iq, to_list(ID), Type, to_list(NS), to_list(Lang),
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exmpp_xml:xmlel_to_xmlelement(El)}.
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to_list(L) when is_list(L) -> L;
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to_list(B) when is_binary(B) -> binary_to_list(B);
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to_list(undefined) -> "";
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to_list(B) when is_atom(B) -> atom_to_list(B).
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%%%==================================
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%%%% Export server
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%% @spec (Dir::string()) -> ok
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export_server(Dir) ->
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try_start_exmpp(),
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FnT = make_filename_template(),
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DFn = make_main_basefilename(Dir, FnT),
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{ok, Fd} = file_open(DFn),
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print(Fd, make_piefxis_xml_head()),
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print(Fd, make_piefxis_server_head()),
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Hosts = ?MYHOSTS,
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FilesAndHosts = [{make_host_filename(FnT, Host), Host} || Host <- Hosts],
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[print(Fd, make_xinclude(FnH)) || {FnH, _Host} <- FilesAndHosts],
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print(Fd, make_piefxis_server_tail()),
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print(Fd, make_piefxis_xml_tail()),
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file_close(Fd),
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[export_host(Dir, FnH, Host) || {FnH, Host} <- FilesAndHosts],
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ok.
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%%%==================================
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%%%% Export host
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%% @spec (Dir::string(), Host::string()) -> ok
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export_host(Dir, Host) ->
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try_start_exmpp(),
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FnT = make_filename_template(),
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FnH = make_host_filename(FnT, Host),
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export_host(Dir, FnH, Host).
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%% @spec (Dir::string(), Fn::string(), Host::string()) -> ok
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export_host(Dir, FnH, Host) ->
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DFn = make_host_basefilename(Dir, FnH),
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{ok, Fd} = file_open(DFn),
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print(Fd, make_piefxis_xml_head()),
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print(Fd, make_piefxis_host_head(Host)),
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Users = ejabberd_auth:get_vh_registered_users(Host),
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[export_user(Fd, Username, Host) || {Username, _Host} <- Users],
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print(Fd, make_piefxis_host_tail()),
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print(Fd, make_piefxis_xml_tail()),
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file_close(Fd).
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%%%==================================
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%%%% PIEFXIS formatting
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%% @spec () -> string()
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make_piefxis_xml_head() ->
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"<?xml version='1.0' encoding='UTF-8'?>".
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%% @spec () -> string()
|
|
make_piefxis_xml_tail() ->
|
|
"".
|
|
|
|
%% @spec () -> string()
|
|
make_piefxis_server_head() ->
|
|
"<server-data"
|
|
" xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'"
|
|
" xmlns:xi='http://www.w3.org/2001/XInclude'>".
|
|
|
|
%% @spec () -> string()
|
|
make_piefxis_server_tail() ->
|
|
"</server-data>".
|
|
|
|
%% @spec (Host::string()) -> string()
|
|
make_piefxis_host_head(Host) ->
|
|
NSString =
|
|
" xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'"
|
|
" xmlns:xi='http://www.w3.org/2001/XInclude'",
|
|
io_lib:format("<host~s jid='~s'>", [NSString, Host]).
|
|
|
|
%% @spec () -> string()
|
|
make_piefxis_host_tail() ->
|
|
"</host>".
|
|
|
|
%% @spec (Fn::string()) -> string()
|
|
make_xinclude(Fn) ->
|
|
Base = filename:basename(Fn),
|
|
io_lib:format("<xi:include href='~s'/>", [Base]).
|
|
|
|
%%%==================================
|
|
%%%% Export user
|
|
|
|
%% @spec (Fd, Username::string(), Host::string()) -> ok
|
|
%% @doc Extract user information and print it.
|
|
export_user(Fd, Username, Host) ->
|
|
UserString = extract_user(Username, Host),
|
|
print(Fd, UserString).
|
|
|
|
%% @spec (Username::string(), Host::string()) -> string()
|
|
extract_user(Username, Host) ->
|
|
Password = ejabberd_auth:get_password_s(Username, Host),
|
|
UserInfo = [extract_user_info(InfoName, Username, Host) || InfoName <- [roster, offline, private, vcard]],
|
|
UserInfoString = lists:flatten(UserInfo),
|
|
io_lib:format("<user name='~s' password='~s'>~s</user>", [Username, Password, UserInfoString]).
|
|
|
|
%% @spec (InfoName::atom(), Username::string(), Host::string()) -> string()
|
|
extract_user_info(roster, Username, Host) ->
|
|
case loaded_module(Host,[mod_roster_odbc,mod_roster]) of
|
|
{ok, M} ->
|
|
From = To = jlib:make_jid(Username, Host, ""),
|
|
SubelGet = {xmlelement, "query", [{"xmlns",?NS_ROSTER}], []},
|
|
%%IQGet = #iq{type=get, xmlns=?NS_ROSTER, payload=SubelGet}, % this is for 3.0.0 version
|
|
IQGet = {iq, "", get, ?NS_ROSTER, "" , SubelGet},
|
|
Res = M:process_local_iq(From, To, IQGet),
|
|
%%[El] = Res#iq.payload, % this is for 3.0.0 version
|
|
{iq, _, result, _, _, Els} = Res,
|
|
case Els of
|
|
[El] -> exmpp_xml:document_to_list(El);
|
|
[] -> ""
|
|
end;
|
|
_E ->
|
|
""
|
|
end;
|
|
|
|
extract_user_info(offline, Username, Host) ->
|
|
case loaded_module(Host,[mod_offline,mod_offline_odbc]) of
|
|
{ok, mod_offline} ->
|
|
Els = mnesia_pop_offline_messages([], Username, Host),
|
|
case Els of
|
|
[] -> "";
|
|
Els ->
|
|
OfEl = {xmlelement, "offline-messages", [], Els},
|
|
exmpp_xml:document_to_list(OfEl)
|
|
end;
|
|
{ok, mod_offline_odbc} ->
|
|
"";
|
|
_E ->
|
|
""
|
|
end;
|
|
|
|
extract_user_info(private, Username, Host) ->
|
|
case loaded_module(Host,[mod_private,mod_private_odbc]) of
|
|
{ok, mod_private} ->
|
|
get_user_private_mnesia(Username, Host);
|
|
{ok, mod_private_odbc} ->
|
|
"";
|
|
_E ->
|
|
""
|
|
end;
|
|
|
|
extract_user_info(vcard, Username, Host) ->
|
|
case loaded_module(Host,[mod_vcard, mod_vcard_odbc, mod_vcard_odbc]) of
|
|
{ok, M} ->
|
|
From = To = jlib:make_jid(Username, Host, ""),
|
|
SubelGet = {xmlelement, "vCard", [{"xmlns",?NS_VCARD}], []},
|
|
%%IQGet = #iq{type=get, xmlns=?NS_VCARD, payload=SubelGet}, % this is for 3.0.0 version
|
|
IQGet = {iq, "", get, ?NS_VCARD, "" , SubelGet},
|
|
Res = M:process_sm_iq(From, To, IQGet),
|
|
%%[El] = Res#iq.payload, % this is for 3.0.0 version
|
|
{iq, _, result, _, _, Els} = Res,
|
|
case Els of
|
|
[El] -> exmpp_xml:document_to_list(El);
|
|
[] -> ""
|
|
end;
|
|
_E ->
|
|
""
|
|
end.
|
|
|
|
%%%==================================
|
|
%%%% Interface with ejabberd offline storage
|
|
|
|
%% Copied from mod_offline.erl and customized
|
|
-record(offline_msg, {us, timestamp, expire, from, to, packet}).
|
|
mnesia_pop_offline_messages(Ls, User, Server) ->
|
|
LUser = jlib:nodeprep(User),
|
|
LServer = jlib:nameprep(Server),
|
|
US = {LUser, LServer},
|
|
F = fun() ->
|
|
Rs = mnesia:wread({offline_msg, US}),
|
|
%%mnesia:delete({offline_msg, US}),
|
|
Rs
|
|
end,
|
|
case mnesia:transaction(F) of
|
|
{atomic, Rs} ->
|
|
TS = now(),
|
|
Ls ++ lists:map(
|
|
fun(R) ->
|
|
{xmlelement, Name, Attrs, Els} = R#offline_msg.packet,
|
|
FromString = jlib:jid_to_string(R#offline_msg.from),
|
|
Attrs2 = lists:keystore("from", 1, Attrs, {"from", FromString}),
|
|
Attrs3 = lists:keystore("xmlns", 1, Attrs2, {"xmlns", "jabber:client"}),
|
|
{xmlelement, Name, Attrs3,
|
|
Els ++
|
|
[jlib:timestamp_to_xml(
|
|
calendar:now_to_universal_time(
|
|
R#offline_msg.timestamp))]}
|
|
end,
|
|
lists:filter(
|
|
fun(R) ->
|
|
case R#offline_msg.expire of
|
|
never ->
|
|
true;
|
|
TimeStamp ->
|
|
TS < TimeStamp
|
|
end
|
|
end,
|
|
lists:keysort(#offline_msg.timestamp, Rs)));
|
|
_ ->
|
|
Ls
|
|
end.
|
|
|
|
%%%==================================
|
|
%%%% Interface with ejabberd private storage
|
|
|
|
get_user_private_mnesia(Username, Host) ->
|
|
ListNsEl = mnesia:dirty_select(private_storage,
|
|
[{#private_storage{usns={Username, Host, '$1'}, xml = '$2'},
|
|
[], ['$$']}]),
|
|
Els = [exmpp_xml:document_to_list(El) || [_Ns, El] <- ListNsEl],
|
|
case lists:flatten(Els) of
|
|
"" -> "";
|
|
ElsString ->
|
|
io_lib:format("<query xmlns='jabber:iq:private'>~s</query>", [ElsString])
|
|
end.
|
|
|
|
%%%==================================
|
|
%%%% Disk file access
|
|
|
|
%% @spec () -> string()
|
|
make_filename_template() ->
|
|
{{Year, Month, Day}, {Hour, Minute, Second}} = calendar:local_time(),
|
|
lists:flatten(
|
|
io_lib:format("~4..0w~2..0w~2..0w-~2..0w~2..0w~2..0w",
|
|
[Year, Month, Day, Hour, Minute, Second])).
|
|
|
|
%% @spec (Dir::string(), FnT::string()) -> string()
|
|
make_main_basefilename(Dir, FnT) ->
|
|
Filename2 = filename:flatten([FnT, ".xml"]),
|
|
filename:join([Dir, Filename2]).
|
|
|
|
%% @spec (FnT::string(), Host::string()) -> FnH::string()
|
|
%% @doc Make the filename for the host.
|
|
%% Example: ``("20080804-231550", "jabber.example.org") -> "20080804-231550_jabber_example_org.xml"''
|
|
make_host_filename(FnT, Host) ->
|
|
Host2 = string:join(string:tokens(Host, "."), "_"),
|
|
filename:flatten([FnT, "_", Host2, ".xml"]).
|
|
|
|
make_host_basefilename(Dir, FnT) ->
|
|
filename:join([Dir, FnT]).
|
|
|
|
%% @spec (Fn::string()) -> {ok, Fd}
|
|
file_open(Fn) ->
|
|
file:open(Fn, [write]).
|
|
|
|
%% @spec (Fd) -> ok
|
|
file_close(Fd) ->
|
|
file:close(Fd).
|
|
|
|
%% @spec (Fd, String::string()) -> ok
|
|
print(Fd, String) ->
|
|
io:format(Fd, String, []).
|
|
|
|
%%%==================================
|
|
|
|
%%% vim: set filetype=erlang tabstop=8 foldmarker=%%%%,%%%= foldmethod=marker:
|