--Minetest
---Copyright (C) 2018 rubenwardy
+--Copyright (C) 2018-20 rubenwardy
--
--This program is free software; you can redistribute it and/or modify
--it under the terms of the GNU Lesser General Public License as published by
--with this program; if not, write to the Free Software Foundation, Inc.,
--51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+if not minetest.get_http_api then
+ function create_store_dlg()
+ return messagebox("store",
+ fgettext("ContentDB is not available when Minetest was compiled without cURL"))
+ end
+ return
+end
+
local store = { packages = {}, packages_full = {} }
+local http = minetest.get_http_api()
+
-- Screenshot
local screenshot_dir = core.get_cache_path() .. DIR_DELIM .. "cdb"
assert(core.create_dir(screenshot_dir))
end
function store.load()
- local tmpdir = os.tempfolder()
- local target = tmpdir .. DIR_DELIM .. "packages.json"
-
- assert(core.create_dir(tmpdir))
-
local version = core.get_version()
local base_url = core.settings:get("contentdb_url")
local url = base_url ..
end
end
- core.download_file(url, target)
+ local timeout = tonumber(minetest.settings:get("curl_file_download_timeout"))
+ local response = http.fetch_sync({ url = url, timeout = timeout })
+ if not response.succeeded then
+ return
+ end
- local file = io.open(target, "r")
- if file then
- store.packages_full = core.parse_json(file:read("*all")) or {}
- file:close()
+ store.packages_full = core.parse_json(response.data) or {}
- for _, package in pairs(store.packages_full) do
- package.url = base_url .. "/packages/" ..
+ for _, package in pairs(store.packages_full) do
+ package.url = base_url .. "/packages/" ..
package.author .. "/" .. package.name ..
"/releases/" .. package.release .. "/download/"
- local name_len = #package.name
- if package.type == "game" and name_len > 5 and package.name:sub(name_len - 4) == "_game" then
- package.id = package.author:lower() .. "/" .. package.name:sub(1, name_len - 5)
- else
- package.id = package.author:lower() .. "/" .. package.name
- end
+ local name_len = #package.name
+ if package.type == "game" and name_len > 5 and package.name:sub(name_len - 4) == "_game" then
+ package.id = package.author:lower() .. "/" .. package.name:sub(1, name_len - 5)
+ else
+ package.id = package.author:lower() .. "/" .. package.name
end
-
- store.packages = store.packages_full
- store.loaded = true
end
- core.delete_dir(tmpdir)
+ store.packages = store.packages_full
+ store.loaded = true
end
function store.update_paths()
Introduction
-------------
+
The main menu is defined as a formspec by Lua in builtin/mainmenu/
Description of formspec language to show your menu is in lua_api.txt
+
Callbacks
---------
+
core.buttonhandler(fields): called when a button is pressed.
^ fields = {name1 = value1, name2 = value2, ...}
core.event_handler(event)
^ event: "MenuQuit", "KeyEnter", "ExitButton" or "EditBoxEnter"
+
Gamedata
--------
+
The "gamedata" table is read when calling core.start(). It should contain:
{
- playername = <name>,
- address = <IP/adress>,
- selected_world = <index>, -- 0 for client mode
- singleplayer = <true/false>,
+ playername = <name>,
+ password = <password>,
+ address = <IP/adress>,
+ port = <port>,
+ selected_world = <index>, -- 0 for client mode
+ singleplayer = <true/false>,
}
+
Functions
---------
+
core.start()
core.close()
+core.get_min_supp_proto()
+^ returns the minimum supported network protocol version
+core.get_max_supp_proto()
+^ returns the maximum supported network protocol version
+core.open_url(url)
+^ opens the URL in a web browser, returns false on failure.
+^ Must begin with http:// or https://
+core.get_version() (possible in async calls)
+^ returns current core version
+
+
+Filesystem
+----------
-Filesystem:
core.get_builtin_path()
^ returns path to builtin root
core.create_dir(absolute_path) (possible in async calls)
^ zipfile to extract
^ destination folder to extract to
^ returns true/false
-core.download_file(url,target) (possible in async calls)
-^ url to download
-^ target to store to
-^ returns true/false
-core.get_version() (possible in async calls)
-^ returns current core version
core.sound_play(spec, looped) -> handle
^ spec = SimpleSoundSpec (see lua-api.txt)
^ looped = bool
registered in the core (possible in async calls)
core.get_cache_path() -> path of cache
-Formspec:
+
+HTTP Requests
+-------------
+
+* core.download_file(url, target) (possible in async calls)
+ * url to download, and target to store to
+ * returns true/false
+* `minetest.get_http_api()` (possible in async calls)
+ * returns `HTTPApiTable` containing http functions.
+ * The returned table contains the functions `fetch_sync`, `fetch_async` and
+ `fetch_async_get` described below.
+ * Function only exists if minetest server was built with cURL support.
+* `HTTPApiTable.fetch_sync(HTTPRequest req)`: returns HTTPRequestResult
+ * Performs given request synchronously
+* `HTTPApiTable.fetch_async(HTTPRequest req)`: returns handle
+ * Performs given request asynchronously and returns handle for
+ `HTTPApiTable.fetch_async_get`
+* `HTTPApiTable.fetch_async_get(handle)`: returns HTTPRequestResult
+ * Return response data for given asynchronous HTTP request
+
+### `HTTPRequest` definition
+
+Used by `HTTPApiTable.fetch` and `HTTPApiTable.fetch_async`.
+
+ {
+ url = "http://example.org",
+
+ timeout = 10,
+ -- Timeout for connection in seconds. Default is 3 seconds.
+
+ post_data = "Raw POST request data string" OR {field1 = "data1", field2 = "data2"},
+ -- Optional, if specified a POST request with post_data is performed.
+ -- Accepts both a string and a table. If a table is specified, encodes
+ -- table as x-www-form-urlencoded key-value pairs.
+ -- If post_data is not specified, a GET request is performed instead.
+
+ user_agent = "ExampleUserAgent",
+ -- Optional, if specified replaces the default minetest user agent with
+ -- given string
+
+ extra_headers = { "Accept-Language: en-us", "Accept-Charset: utf-8" },
+ -- Optional, if specified adds additional headers to the HTTP request.
+ -- You must make sure that the header strings follow HTTP specification
+ -- ("Key: Value").
+
+ multipart = boolean
+ -- Optional, if true performs a multipart HTTP request.
+ -- Default is false.
+ }
+
+### `HTTPRequestResult` definition
+
+Passed to `HTTPApiTable.fetch` callback. Returned by
+`HTTPApiTable.fetch_async_get`.
+
+ {
+ completed = true,
+ -- If true, the request has finished (either succeeded, failed or timed
+ -- out)
+
+ succeeded = true,
+ -- If true, the request was successful
+
+ timeout = false,
+ -- If true, the request timed out
+
+ code = 200,
+ -- HTTP status code
+
+ data = "response"
+ }
+
+
+Formspec
+--------
+
core.update_formspec(formspec)
core.get_table_index(tablename) -> index
^ can also handle textlists
core.set_formspec_prepend(formspec)
^ string to be added to every mainmenu formspec, to be used for theming.
-GUI:
+
+GUI
+---
+
core.set_background(type, texturepath,[tile],[minsize])
^ type: "background", "overlay", "header" or "footer"
^ tile: tile the image instead of scaling (background only)
^ returns nil or selected file/folder
core.get_screen_info()
^ returns {
- density = <screen density 0.75,1.0,2.0,3.0 ... (dpi)>,
- display_width = <width of display>,
- display_height = <height of display>,
- window_width = <current window width>,
- window_height = <current window height>
- }
+ density = <screen density 0.75,1.0,2.0,3.0 ... (dpi)>,
+ display_width = <width of display>,
+ display_height = <height of display>,
+ window_width = <current window width>,
+ window_height = <current window height>
+ }
-### Content and Packages
+
+Content and Packages
+--------------------
Content - an installed mod, modpack, game, or texture pack (txt)
Package - content which is downloadable from the content db, may or may not be installed.
* core.get_modpath() (possible in async calls)
- * returns path to global modpath
+ * returns path to global modpath
* core.get_clientmodpath() (possible in async calls)
- * returns path to global client-side modpath
+ * returns path to global client-side modpath
* core.get_gamepath() (possible in async calls)
- * returns path to global gamepath
+ * returns path to global gamepath
* core.get_texturepath() (possible in async calls)
- * returns path to default textures
+ * returns path to default textures
* core.get_game(index)
- * returns:
-
- {
- id = <id>,
- path = <full path to game>,
-
gamemods_path = <path>,
- name = <name of game>,
- menuicon_path = <full path to menuicon>,
- author = "author",
- DEPRECATED:
-
addon_mods_paths = {[1] = <path>,},
- }
+ * returns:
+
+ {
+ id = <id>,
+ path = <full path to game>,
+ gamemods_path = <path>,
+ name = <name of game>,
+ menuicon_path = <full path to menuicon>,
+ author = "author",
+ DEPRECATED:
+ addon_mods_paths = {[1] = <path>,},
+ }
* core.get_games() -> table of all games in upper format (possible in async calls)
* core.get_content_info(path)
- * returns
+ * returns
- {
- name = "name of content",
- type = "mod" or "modpack" or "game" or "txp",
- description = "description",
- author = "author",
- path = "path/to/content",
- depends = {"mod", "names"}, -- mods only
- optional_depends = {"mod", "names"}, -- mods only
- }
+ {
+ name = "name of content",
+ type = "mod" or "modpack" or "game" or "txp",
+ description = "description",
+ author = "author",
+ path = "path/to/content",
+ depends = {"mod", "names"}, -- mods only
+ optional_depends = {"mod", "names"}, -- mods only
+ }
-Favorites:
+Favorites
+---------
+
core.get_favorites(location) -> list of favorites (possible in async calls)
^ location: "local" or "online"
^ returns {
- [1] = {
- clients = <number of clients/nil>,
- clients_max = <maximum number of clients/nil>,
- version = <server version/nil>,
- password = <true/nil>,
- creative = <true/nil>,
- damage = <true/nil>,
- pvp = <true/nil>,
- description = <server description/nil>,
- name = <server name/nil>,
-
address = <address of server/nil>,
-
clients_list = <array of clients/nil>
-
mods = <array of mods/nil>
- },
- ...
+ [1] = {
+ clients = <number of clients/nil>,
+ clients_max = <maximum number of clients/nil>,
+ version = <server version/nil>,
+ password = <true/nil>,
+ creative = <true/nil>,
+ damage = <true/nil>,
+ pvp = <true/nil>,
+ description = <server description/nil>,
+ name = <server name/nil>,
+ address = <address of server/nil>,
+ port = <port>
+ clients_list = <array of clients/nil>
+ mods = <array of mods/nil>
+ },
+ ...
}
core.delete_favorite(id, location) -> success
-Logging:
+
+Logging
+-------
+
core.debug(line) (possible in async calls)
^ Always printed to stderr and logfile (print() is redirected here)
core.log(line) (possible in async calls)
core.log(loglevel, line) (possible in async calls)
^ loglevel one of "error", "action", "info", "verbose"
-Settings:
+
+Settings
+--------
+
core.settings:set(name, value)
core.settings:get(name) -> string or nil (possible in async calls)
core.settings:set_bool(name, value)
For a complete list of methods of the Settings object see
[lua_api.txt](https://github.com/minetest/minetest/blob/master/doc/lua_api.txt)
-Worlds:
+
+Worlds
+------
+
core.get_worlds() -> list of worlds (possible in async calls)
^ returns {
- [1] = {
- path = <full path to world>,
- name = <name of world>,
- gameid = <gameid of world>,
- },
+ [1] = {
+ path = <full path to world>,
+ name = <name of world>,
+ gameid = <gameid of world>,
+ },
}
core.create_world(worldname, gameid)
core.delete_world(index)
-Helpers:
+
+Helpers
+-------
+
core.get_us_time()
^ returns time with microsecond precision
core.gettext(string) -> string
minetest.decode_base64(string) (possible in async calls)
^ Decodes a string encoded in base64.
-Version compat:
-core.get_min_supp_proto()
-^ returns the minimum supported network protocol version
-core.get_max_supp_proto()
-^ returns the maximum supported network protocol version
-Other:
-core.open_url(url)
-^ opens the URL in a web browser, returns false on failure.
-^ Must begin with http:// or https://
+Async
+-----
-Async:
core.handle_async(async_job,parameters,finished)
^ execute a function asynchronously
^ async_job is a function receiving one parameter and returning one parameter
Limitations of Async operations
-No access to global lua variables, don't even try
-Limited set of available functions
- e.g. No access to functions modifying menu like core.start,core.close,
- core.show_path_select_dialog
+ e.g. No access to functions modifying menu like core.start,core.close,
+ core.show_path_select_dialog
+
Background music
----------------
+
The main menu supports background music.
It looks for a `main_menu` sound in `$USER_PATH/sounds`. The same naming
conventions as for normal sounds apply.
projects / oweals / minetest.git / commitdiff