100 lines
3.1 KiB
Lua
100 lines
3.1 KiB
Lua
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local STORAGE_VERSION_KEY = "@@version"
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local function migrate_v1_to_v3()
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local file = io.open(minetest.get_worldpath().."/mail.db", "r")
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assert(file)
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print("[mail] Migration from v1 to v3 database")
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local data = file:read("*a")
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local oldmails = minetest.deserialize(data)
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file:close()
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for name, oldmessages in pairs(oldmails) do
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print("[mail,v1] + migrating player '" .. name .. "'")
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local entry = mail.get_storage_entry(name)
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for _, msg in ipairs(oldmessages) do
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table.insert(entry.inbox, {
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id = mail.new_uuid(),
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from = msg.sender or msg.from,
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to = msg.to or name,
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subject = msg.subject,
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body = msg.body,
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time = msg.time or os.time(),
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})
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end
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mail.set_storage_entry(name, entry)
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end
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-- rename file
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print("[mail,v1] migration done, renaming old mail.db")
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os.rename(minetest.get_worldpath().."/mail.db", minetest.get_worldpath().."/mail.db.old")
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end
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local function read_json_file(path)
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local file = io.open(path, "r")
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local content = {}
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if file then
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local json = file:read("*a")
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content = minetest.parse_json(json or "[]") or {}
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file:close()
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end
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return content
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end
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-- migrate from v2 to v3 database
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local function migrate_v2_to_v3()
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local maildir = minetest.get_worldpath().."/mails"
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minetest.mkdir(maildir) -- if necessary (eg. first login)
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print("[mail] Migration from v2 to v3 database")
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-- defer execution until auth-handler ready (first server-step)
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minetest.after(0, function()
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for playername, _ in minetest.get_auth_handler().iterate() do
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local entry = mail.get_storage_entry(playername)
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local player_contacts = read_json_file(maildir .. "/contacts/" .. playername .. ".json")
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for _, c in pairs(player_contacts) do
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table.insert(entry.contacts, { name = c.name, note = c.note })
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end
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local saneplayername = string.gsub(playername, "[.|/]", "")
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local player_inbox = read_json_file(maildir .. "/" .. saneplayername .. ".json")
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print("[mail,v2] + migrating player '" .. playername .. "'")
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for _, msg in ipairs(player_inbox) do
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table.insert(entry.inbox, {
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id = mail.new_uuid(),
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from = msg.sender or msg.from,
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to = msg.to or playername,
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cc = msg.cc,
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subject = msg.subject,
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body = msg.body,
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time = msg.time or os.time(),
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read = not msg.unread,
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})
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end
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mail.set_storage_entry(playername, entry)
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end
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print("[mail,v2] migration done")
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end)
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end
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function mail.migrate()
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-- check for v2 storage first, v1-migration might have set the v3-flag already
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local version = mail.storage:get_int(STORAGE_VERSION_KEY)
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if version < 3 then
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-- v2 to v3
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migrate_v2_to_v3()
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mail.storage:set_int(STORAGE_VERSION_KEY, 3)
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end
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-- check for v1 storage
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local v1_file = io.open(minetest.get_worldpath().."/mail.db", "r")
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if v1_file then
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-- v1 to v3
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migrate_v1_to_v3()
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mail.storage:set_int(STORAGE_VERSION_KEY, 3)
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end
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end
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