luci-base: dispatcher.lua: introduce dispatch tree JSON conversion
Introduce a new method menu_json() which converts the current dispatch
tree into JSON structure.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit 852d24061d)
This commit is contained in:
Jo-Philipp Wich
parent
cecc13b9d4
commit
0f6af6e00d
1 changed files with 360 additions and 27 deletions
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@ -21,6 +21,324 @@ local index = nil
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local fi
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local function check_fs_depends(fs)
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local fs = require "nixio.fs"
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for path, kind in pairs(fs) do
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if kind == "directory" then
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local empty = true
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for entry in (fs.dir(path) or function() end) do
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empty = false
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break
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end
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if empty then
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return false
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end
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elseif kind == "executable" then
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if fs.stat(path, "type") ~= "reg" or not fs.access(path, "x") then
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return false
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end
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elseif kind == "file" then
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if fs.stat(path, "type") ~= "reg" then
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return false
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end
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end
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end
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return true
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end
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local function check_uci_depends_options(conf, s, opts)
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local uci = require "luci.model.uci"
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if type(opts) == "string" then
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return (s[".type"] == opts)
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elseif opts == true then
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for option, value in pairs(s) do
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if option:byte(1) ~= 46 then
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return true
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end
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end
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elseif type(opts) == "table" then
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for option, value in pairs(opts) do
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local sval = s[option]
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if type(sval) == "table" then
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local found = false
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for _, v in ipairs(sval) do
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if v == value then
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found = true
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break
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end
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end
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if not found then
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return false
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end
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elseif value == true then
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if sval == nil then
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return false
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end
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else
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if sval ~= value then
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return false
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end
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end
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end
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end
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return true
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end
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local function check_uci_depends_section(conf, sect)
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local uci = require "luci.model.uci"
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for section, options in pairs(sect) do
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local stype = section:match("^@([A-Za-z0-9_%-]+)$")
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if stype then
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local found = false
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uci:foreach(conf, stype, function(s)
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if check_uci_depends_options(conf, s, options) then
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found = true
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return false
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end
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end)
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if not found then
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return false
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end
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else
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local s = uci:get_all(conf, section)
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if not s or not check_uci_depends_options(conf, s, options) then
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return false
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end
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end
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end
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return true
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end
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local function check_uci_depends(conf)
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local uci = require "luci.model.uci"
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for config, values in pairs(conf) do
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if values == true then
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local found = false
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uci:foreach(config, nil, function(s)
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found = true
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return false
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end)
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if not found then
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return false
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end
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elseif type(values) == "table" then
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if not check_uci_depends_section(config, values) then
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return false
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end
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end
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end
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return true
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end
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local function check_depends(spec)
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if type(spec.depends) ~= "table" then
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return true
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end
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if type(spec.depends.fs) == "table" and not check_fs_depends(spec.depends.fs) then
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local satisfied = false
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local alternatives = (#spec.depends.fs > 0) and spec.depends.fs or { spec.depends.fs }
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for _, alternative in ipairs(alternatives) do
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if check_fs_depends(alternative) then
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satisfied = true
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break
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end
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end
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if not satisfied then
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return false
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end
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end
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if type(spec.depends.uci) == "table" then
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local satisfied = false
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local alternatives = (#spec.depends.uci > 0) and spec.depends.uci or { spec.depends.uci }
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for _, alternative in ipairs(alternatives) do
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if check_uci_depends(alternative) then
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satisfied = true
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break
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end
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end
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if not satisfied then
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return false
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end
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end
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return true
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end
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local function target_to_json(target, module)
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local action
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if target.type == "call" then
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action = {
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["type"] = "call",
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["module"] = module,
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["function"] = target.name,
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["parameters"] = target.argv
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}
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elseif target.type == "view" then
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action = {
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["type"] = "view",
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["path"] = target.view
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}
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elseif target.type == "template" then
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action = {
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["type"] = "template",
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["path"] = target.view
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}
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elseif target.type == "cbi" then
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action = {
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["type"] = "cbi",
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["path"] = target.model
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}
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elseif target.type == "form" then
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action = {
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["type"] = "form",
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["path"] = target.model
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}
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elseif target.type == "firstchild" then
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action = {
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["type"] = "firstchild"
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}
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elseif target.type == "firstnode" then
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action = {
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["type"] = "firstchild",
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["recurse"] = true
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}
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elseif target.type == "arcombine" then
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if type(target.targets) == "table" then
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action = {
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["type"] = "arcombine",
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["targets"] = {
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target_to_json(target.targets[1], module),
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target_to_json(target.targets[2], module)
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}
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}
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end
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elseif target.type == "alias" then
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action = {
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["type"] = "alias",
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["path"] = table.concat(target.req, "/")
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}
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elseif target.type == "rewrite" then
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action = {
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["type"] = "rewrite",
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["path"] = table.concat(target.req, "/"),
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["remove"] = target.n
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}
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end
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if target.post and action then
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action.post = target.post
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end
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return action
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end
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local function tree_to_json(node, json)
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local fs = require "nixio.fs"
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local util = require "luci.util"
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if type(node.nodes) == "table" then
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for subname, subnode in pairs(node.nodes) do
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local spec = {
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title = util.striptags(subnode.title),
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order = subnode.order
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}
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if subnode.leaf then
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spec.wildcard = true
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end
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if subnode.cors then
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spec.cors = true
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end
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if subnode.setuser then
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spec.setuser = subnode.setuser
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end
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if subnode.setgroup then
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spec.setgroup = subnode.setgroup
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end
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if type(subnode.target) == "table" then
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spec.action = target_to_json(subnode.target, subnode.module)
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end
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if type(subnode.file_depends) == "table" then
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for _, v in ipairs(subnode.file_depends) do
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spec.depends = spec.depends or {}
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spec.depends.fs = spec.depends.fs or {}
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local ft = fs.stat(v, "type")
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if ft == "dir" then
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spec.depends.fs[v] = "directory"
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elseif v:match("/s?bin/") then
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spec.depends.fs[v] = "executable"
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else
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spec.depends.fs[v] = "file"
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end
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end
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end
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if type(subnode.uci_depends) == "table" then
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for k, v in pairs(subnode.uci_depends) do
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spec.depends = spec.depends or {}
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spec.depends.uci = spec.depends.uci or {}
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spec.depends.uci[k] = v
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end
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end
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if (subnode.sysauth_authenticator ~= nil) or
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(subnode.sysauth ~= nil and subnode.sysauth ~= false)
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then
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if subnode.sysauth_authenticator == "htmlauth" then
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spec.auth = {
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login = true,
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methods = { "cookie:sysauth" }
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}
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elseif subname == "rpc" and subnode.module == "luci.controller.rpc" then
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spec.auth = {
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login = false,
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methods = { "param:auth", "cookie:sysauth" }
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}
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elseif subnode.module == "luci.controller.admin.uci" then
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spec.auth = {
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login = false,
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methods = { "param:sid" }
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}
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end
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elseif subnode.sysauth == false then
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spec.auth = {}
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end
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for _, v in pairs(spec) do
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if v ~= nil then
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if not spec.action then
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spec.title = nil
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end
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spec.satisfied = check_depends(spec)
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json.children = json.children or {}
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json.children[subname] = tree_to_json(subnode, spec)
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break
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end
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end
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end
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end
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return json
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end
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function build_url(...)
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local path = {...}
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local url = { http.getenv("SCRIPT_NAME") or "" }
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@ -306,6 +624,16 @@ local function session_setup(user, pass, allowed_users)
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return nil, nil
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end
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function menu_json()
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local tree = context.tree or createtree()
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return tree_to_json(tree, {
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action = {
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["type"] = "firstchild",
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["recurse"] = true
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}
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})
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end
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function dispatch(request)
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--context._disable_memtrace = require "luci.debug".trap_memtrace("l")
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local ctx = context
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@ -848,39 +1176,44 @@ function firstnode()
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return { type = "firstnode", target = _firstnode }
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end
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function alias(...)
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local req = {...}
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return function(...)
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for _, r in ipairs({...}) do
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req[#req+1] = r
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end
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function _alias(self, ...)
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local req = { unpack(self.req) }
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dispatch(req)
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for _, r in ipairs({...}) do
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req[#req+1] = r
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end
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dispatch(req)
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end
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function alias(...)
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return { type = "alias", target = _alias, req = { ... } }
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end
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function _rewrite(self, ...)
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local n = self.n
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local req = { unpack(self.req) }
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local dispatched = util.clone(context.dispatched)
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for i=1,n do
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table.remove(dispatched, 1)
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end
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for i, r in ipairs(req) do
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table.insert(dispatched, i, r)
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end
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for _, r in ipairs({...}) do
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dispatched[#dispatched+1] = r
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end
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dispatch(dispatched)
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end
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function rewrite(n, ...)
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local req = {...}
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return function(...)
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local dispatched = util.clone(context.dispatched)
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for i=1,n do
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table.remove(dispatched, 1)
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end
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for i, r in ipairs(req) do
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table.insert(dispatched, i, r)
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end
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for _, r in ipairs({...}) do
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dispatched[#dispatched+1] = r
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end
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dispatch(dispatched)
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end
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return { type = "rewrite", target = _rewrite, n = n, req = { ... } }
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end
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local function _call(self, ...)
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local func = getfenv()[self.name]
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assert(func ~= nil,
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@ -1092,7 +1425,7 @@ end
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function form(model)
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return {
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type = "cbi",
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type = "form",
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post = { ["cbi.submit"] = true },
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model = model,
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target = _form
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