luci-base: dispatcher.lua: factor out template class init into own function

Signed-off-by: Jo-Philipp Wich <jo@mein.io>
(cherry picked from commit 1ec6e72106218e11871dd8ee563f7673c2d1f7dc)

diff --git a/modules/luci-base/luasrc/dispatcher.lua b/modules/luci-base/luasrc/dispatcher.lua
index 53014fc149c15d8901978fd91ef57db8be45ef6d..1eeffb2b6bb30493bb1043b3e34c3244da144662 100644 (file)
--- a/modules/luci-base/luasrc/dispatcher.lua
+++ b/modules/luci-base/luasrc/dispatcher.lua
@@ -668,6 +668,84 @@ function menu_json()
        })
 end
 
+local function init_template_engine(ctx)
+       local tpl = require "luci.template"
+       local media = luci.config.main.mediaurlbase
+
+       if not pcall(tpl.Template, "themes/%s/header" % fs.basename(media)) then
+               media = nil
+               for name, theme in pairs(luci.config.themes) do
+                       if name:sub(1,1) ~= "." and pcall(tpl.Template,
+                        "themes/%s/header" % fs.basename(theme)) then
+                               media = theme
+                       end
+               end
+               assert(media, "No valid theme found")
+       end
+
+       local function _ifattr(cond, key, val, noescape)
+               if cond then
+                       local env = getfenv(3)
+                       local scope = (type(env.self) == "table") and env.self
+                       if type(val) == "table" then
+                               if not next(val) then
+                                       return ''
+                               else
+                                       val = util.serialize_json(val)
+                               end
+                       end
+
+                       val = tostring(val or
+                               (type(env[key]) ~= "function" and env[key]) or
+                               (scope and type(scope[key]) ~= "function" and scope[key]) or "")
+
+                       if noescape ~= true then
+                               val = util.pcdata(val)
+                       end
+
+                       return string.format(' %s="%s"', tostring(key), val)
+               else
+                       return ''
+               end
+       end
+
+       tpl.context.viewns = setmetatable({
+               write       = http.write;
+               include     = function(name) tpl.Template(name):render(getfenv(2)) end;
+               translate   = i18n.translate;
+               translatef  = i18n.translatef;
+               export      = function(k, v) if tpl.context.viewns[k] == nil then tpl.context.viewns[k] = v end end;
+               striptags   = util.striptags;
+               pcdata      = util.pcdata;
+               media       = media;
+               theme       = fs.basename(media);
+               resource    = luci.config.main.resourcebase;
+               ifattr      = function(...) return _ifattr(...) end;
+               attr        = function(...) return _ifattr(true, ...) end;
+               url         = build_url;
+       }, {__index=function(tbl, key)
+               if key == "controller" then
+                       return build_url()
+               elseif key == "REQUEST_URI" then
+                       return build_url(unpack(ctx.requestpath))
+               elseif key == "FULL_REQUEST_URI" then
+                       local url = { http.getenv("SCRIPT_NAME") or "", http.getenv("PATH_INFO") }
+                       local query = http.getenv("QUERY_STRING")
+                       if query and #query > 0 then
+                               url[#url+1] = "?"
+                               url[#url+1] = query
+                       end
+                       return table.concat(url, "")
+               elseif key == "token" then
+                       return ctx.authtoken
+               else
+                       return rawget(tbl, key) or _G[key]
+               end
+       end})
+
+       return tpl
+end
+
 function dispatch(request)
        --context._disable_memtrace = require "luci.debug".trap_memtrace("l")
        local ctx = context
@@ -715,78 +793,7 @@ function dispatch(request)
 
        -- Init template engine
        if (c and c.index) or not track.notemplate then
-               local tpl = require("luci.template")
-               local media = track.mediaurlbase or luci.config.main.mediaurlbase
-               if not pcall(tpl.Template, "themes/%s/header" % fs.basename(media)) then
-                       media = nil
-                       for name, theme in pairs(luci.config.themes) do
-                               if name:sub(1,1) ~= "." and pcall(tpl.Template,
-                                "themes/%s/header" % fs.basename(theme)) then
-                                       media = theme
-                               end
-                       end
-                       assert(media, "No valid theme found")
-               end
-
-               local function _ifattr(cond, key, val, noescape)
-                       if cond then
-                               local env = getfenv(3)
-                               local scope = (type(env.self) == "table") and env.self
-                               if type(val) == "table" then
-                                       if not next(val) then
-                                               return ''
-                                       else
-                                               val = util.serialize_json(val)
-                                       end
-                               end
-
-                               val = tostring(val or
-                                       (type(env[key]) ~= "function" and env[key]) or
-                                       (scope and type(scope[key]) ~= "function" and scope[key]) or "")
-
-                               if noescape ~= true then
-                                       val = util.pcdata(val)
-                               end
-
-                               return string.format(' %s="%s"', tostring(key), val)
-                       else
-                               return ''
-                       end
-               end
-
-               tpl.context.viewns = setmetatable({
-                  write       = http.write;
-                  include     = function(name) tpl.Template(name):render(getfenv(2)) end;
-                  translate   = i18n.translate;
-                  translatef  = i18n.translatef;
-                  export      = function(k, v) if tpl.context.viewns[k] == nil then tpl.context.viewns[k] = v end end;
-                  striptags   = util.striptags;
-                  pcdata      = util.pcdata;
-                  media       = media;
-                  theme       = fs.basename(media);
-                  resource    = luci.config.main.resourcebase;
-                  ifattr      = function(...) return _ifattr(...) end;
-                  attr        = function(...) return _ifattr(true, ...) end;
-                  url         = build_url;
-               }, {__index=function(tbl, key)
-                       if key == "controller" then
-                               return build_url()
-                       elseif key == "REQUEST_URI" then
-                               return build_url(unpack(ctx.requestpath))
-                       elseif key == "FULL_REQUEST_URI" then
-                               local url = { http.getenv("SCRIPT_NAME") or "", http.getenv("PATH_INFO") }
-                               local query = http.getenv("QUERY_STRING")
-                               if query and #query > 0 then
-                                       url[#url+1] = "?"
-                                       url[#url+1] = query
-                               end
-                               return table.concat(url, "")
-                       elseif key == "token" then
-                               return ctx.authtoken
-                       else
-                               return rawget(tbl, key) or _G[key]
-                       end
-               end})
+               init_template_engine(ctx)
        end
 
        track.dependent = (track.dependent ~= false)