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tools/openfire2prosody.lua @ 13186:affaf6d08d26
util.datamanager: Pad list writes to avoid crossing block boundaries
By padding items so that they do not cross block boundaries, it becomes
eaiser to delete whole blocks with fallocate() without cutting items
in half, improving efficiency of such operations.
Since list stores are used for message archives, where the most common
deletion operation would be of the oldest entires, at the top of the
file. With this, all blocks that contain items to be removed could be
deleted without needing to read, delete and write out the whole file.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 07 Jun 2023 00:39:30 +0200 |
parent | 13142:879a6a33c21b |
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#!/usr/bin/env lua -- Prosody IM -- Copyright (C) 2008-2009 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- package.path = package.path..";../?.lua"; package.cpath = package.cpath..";../?.so"; -- needed for util.pposix used in datamanager local my_name = arg[0]; if my_name:match("[/\\]") then package.path = package.path..";"..my_name:gsub("[^/\\]+$", "../?.lua"); package.cpath = package.cpath..";"..my_name:gsub("[^/\\]+$", "../?.so"); end if not pcall(require, "prosody.loader") then pcall(require, "loader"); end -- ugly workaround for getting datamanager to work outside of prosody :( prosody = { }; prosody.platform = "unknown"; if os.getenv("WINDIR") then prosody.platform = "windows"; elseif package.config:sub(1,1) == "/" then prosody.platform = "posix"; end local parse_xml = require "prosody.util.xml".parse; ----------------------------------------------------------------------- package.loaded["util.logger"] = {init = function() return function() end; end} local dm = require "prosody.util.datamanager" dm.set_data_path("data"); local arg = ...; local help = "/? -? ? /h -h /help -help --help"; if not arg or help:find(arg, 1, true) then print([[Openfire importer for Prosody Usage: openfire2prosody.lua filename.xml hostname ]]); os.exit(1); end local host = select(2, ...) or "localhost"; local file = assert(io.open(arg)); local data = assert(file:read("*a")); file:close(); local xml = assert(parse_xml(data)); assert(xml.name == "Openfire", "The input file is not an Openfire XML export"); local substatus_mapping = { ["0"] = "none", ["1"] = "to", ["2"] = "from", ["3"] = "both" }; for _,tag in ipairs(xml.tags) do if tag.name == "User" then local username, password, roster; for _,tag in ipairs(tag.tags) do if tag.name == "Username" then username = tag:get_text(); elseif tag.name == "Password" then password = tag:get_text(); elseif tag.name == "Roster" then roster = {}; local pending = {}; for _,tag in ipairs(tag.tags) do if tag.name == "Item" then local jid = assert(tag.attr.jid, "Roster item has no JID"); if tag.attr.substatus ~= "-1" then local item = {}; item.name = tag.attr.name; item.subscription = assert(substatus_mapping[tag.attr.substatus], "invalid substatus"); item.ask = tag.attr.askstatus == "0" and "subscribe" or nil; local groups = {}; for _,tag in ipairs(tag) do if tag.name == "Group" then groups[tag:get_text()] = true; end end item.groups = groups; roster[jid] = item; end if tag.attr.recvstatus == "1" then pending[jid] = true; end end end if next(pending) then roster[false] = { pending = pending }; end end end assert(username and password, "No username or password"); local ret, err = dm.store(username, host, "accounts", {password = password}); print("["..(err or "success").."] stored account: "..username.."@"..host.." = "..password); if roster then local ret, err = dm.store(username, host, "roster", roster); print("["..(err or "success").."] stored roster: "..username.."@"..host.." = "..password); end end end