luci-app-adblock: respect SimpleForm size limit

* respect SimpleForm size limit of 100KB for advanced online editing

Signed-off-by: Dirk Brenken <dev@brenken.org>

applications/luci-app-adblock/luasrc/model/cbi/adblock/blacklist_tab.lua

@@ -1,22 +1,21 @@
--- Copyright 2017 Dirk Brenken (dev@brenken.org)
+-- Copyright 2017-2018 Dirk Brenken (dev@brenken.org)
 -- This is free software, licensed under the Apache License, Version 2.0
 
-local fs = require("nixio.fs")
+local fs       = require("nixio.fs")
-local util = require("luci.util")
+local util     = require("luci.util")
-local uci = require("luci.model.uci").cursor()
+local uci      = require("luci.model.uci").cursor()
 local adbinput = uci:get("adblock", "blacklist", "adb_src") or "/etc/adblock/adblock.blacklist"
 
-if not nixio.fs.access(adbinput) then
+if not fs.access(adbinput) then
-	m = SimpleForm("error", nil,
+	m = SimpleForm("error", nil, translate("Input file not found, please check your configuration."))
-		translate("Input file not found, please check your configuration."))
 	m.reset = false
 	m.submit = false
 	return m
 end
 
-if nixio.fs.stat(adbinput).size > 524288 then
+if fs.stat(adbinput).size >= 102400 then
 	m = SimpleForm("error", nil,
-		translate("The file size is too large for online editing in LuCI (> 512 KB). ")
+		translate("The file size is too large for online editing in LuCI (≥ 100 KB). ")
 		.. translate("Please edit this file directly in a terminal session."))
 	m.reset = false
 	m.submit = false
@@ -38,11 +37,11 @@ f.rows = 20
 f.rmempty = true
 
 function f.cfgvalue()
-	return nixio.fs.readfile(adbinput) or ""
+	return fs.readfile(adbinput) or ""
 end
 
 function f.write(self, section, data)
-	return nixio.fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
+	return fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
 end
 
 function s.handle(self, state, data)

applications/luci-app-adblock/luasrc/model/cbi/adblock/configuration_tab.lua

@@ -1,17 +1,26 @@
--- Copyright 2017 Dirk Brenken (dev@brenken.org)
+-- Copyright 2017-2018 Dirk Brenken (dev@brenken.org)
 -- This is free software, licensed under the Apache License, Version 2.0
 
-local fs = require("nixio.fs")
+local fs       = require("nixio.fs")
-local util = require("luci.util")
+local util     = require("luci.util")
 local adbinput = "/etc/config/adblock"
 
-if not nixio.fs.access(adbinput) then
+if not fs.access(adbinput) then
 	m = SimpleForm("error", nil, translate("Input file not found, please check your configuration."))
 	m.reset = false
 	m.submit = false
 	return m
 end
 
+if fs.stat(adbinput).size >= 102400 then
+	m = SimpleForm("error", nil,
+		translate("The file size is too large for online editing in LuCI (≥ 100 KB). ")
+		.. translate("Please edit this file directly in a terminal session."))
+	m.reset = false
+	m.submit = false
+	return m
+end
+
 m = SimpleForm("input", nil)
 m:append(Template("adblock/config_css"))
 m.submit = translate("Save")
@@ -25,11 +34,11 @@ f.rows = 20
 f.rmempty = true
 
 function f.cfgvalue()
-	return nixio.fs.readfile(adbinput) or ""
+	return fs.readfile(adbinput) or ""
 end
 
 function f.write(self, section, data)
-	return nixio.fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
+	return fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
 end
 
 function s.handle(self, state, data)

applications/luci-app-adblock/luasrc/model/cbi/adblock/whitelist_tab.lua

@@ -1,22 +1,22 @@
--- Copyright 2017 Dirk Brenken (dev@brenken.org)
+-- Copyright 2017-2018 Dirk Brenken (dev@brenken.org)
 -- This is free software, licensed under the Apache License, Version 2.0
 
-local fs = require("nixio.fs")
+local fs       = require("nixio.fs")
-local util = require("luci.util")
+local util     = require("luci.util")
-local uci = require("luci.model.uci").cursor()
+local uci      = require("luci.model.uci").cursor()
 local adbinput = uci:get("adblock", "global", "adb_whitelist") or "/etc/adblock/adblock.whitelist"
 
-if not nixio.fs.access(adbinput) then
+if not fs.access(adbinput) then
 	m = SimpleForm("error", nil, translate("Input file not found, please check your configuration."))
 	m.reset = false
 	m.submit = false
 	return m
 end
 
-if nixio.fs.stat(adbinput).size > 524288 then
+if fs.stat(adbinput).size >= 102400 then
 	m = SimpleForm("error", nil,
-	translate("The file size is too large for online editing in LuCI (> 512 KB). ")
+		translate("The file size is too large for online editing in LuCI (≥ 100 KB). ")
-	.. translate("Please edit this file directly in a terminal session."))
+		.. translate("Please edit this file directly in a terminal session."))
 	m.reset = false
 	m.submit = false
 	return m
@@ -37,11 +37,11 @@ f.rows = 20
 f.rmempty = true
 
 function f.cfgvalue()
-	return nixio.fs.readfile(adbinput) or ""
+	return fs.readfile(adbinput) or ""
 end
 
 function f.write(self, section, data)
-	return nixio.fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
+	return fs.writefile(adbinput, "\n" .. util.trim(data:gsub("\r\n", "\n")) .. "\n")
 end
 
 function s.handle(self, state, data)