applications/luci-app-ddns/luasrc/model/cbi/ddns/hints.lua

   1 -- Copyright 2014-2017 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
   2 -- Licensed to the public under the Apache License 2.0.
   3
   4 local CTRL = require "luci.controller.ddns"     -- this application's controller
   5 local DISP = require "luci.dispatcher"
   6 local SYS  = require "luci.sys"
   7 local DDNS = require "luci.tools.ddns"          -- ddns multiused functions
   8
   9 -- check supported options -- ##################################################
  10 -- saved to local vars here because doing multiple os calls slow down the system
  11 has_ssl     = DDNS.check_ssl()          -- HTTPS support and --bind-network / --interface
  12 has_proxy   = DDNS.check_proxy()        -- Proxy support
  13 has_dnstcp  = DDNS.check_bind_host()    -- DNS TCP support
  14 -- correct ddns-scripts version
  15 need_update = DDNS.ipkg_ver_compare(DDNS.ipkg_ver_installed("ddns-scripts"), "<<", CTRL.DDNS_MIN)
  16
  17 -- html constants
  18 font_red = [[<font color="red">]]
  19 font_off = [[</font>]]
  20 bold_on  = [[<strong>]]
  21 bold_off = [[</strong>]]
  22
  23 -- cbi-map definition -- #######################################################
  24 m = Map("ddns")
  25
  26 -- first need to close <a> from cbi map template our <a> closed by template
  27 m.title = [[</a><a href="]] .. DISP.build_url("admin", "services", "ddns") .. [[">]] ..
  28                 translate("Dynamic DNS")
  29
  30 m.description = translate("Dynamic DNS allows that your router can be reached with " ..
  31                         "a fixed hostname while having a dynamically changing " ..
  32                         "IP address.")
  33
  34 m.redirect = DISP.build_url("admin", "services", "ddns")
  35
  36 -- SimpleSection definition -- #################################################
  37 -- show Hints to optimize installation and script usage
  38 s = m:section( SimpleSection,
  39         translate("Hints"),
  40         translate("Below a list of configuration tips for your system to run Dynamic DNS updates without limitations") )
  41
  42 -- ddns_scripts needs to be updated for full functionality
  43 if need_update then
  44         local dv = s:option(DummyValue, "_update_needed")
  45         dv.titleref = DISP.build_url("admin", "system", "packages")
  46         dv.rawhtml  = true
  47         dv.title = font_red .. bold_on ..
  48                 translate("Software update required") .. bold_off .. font_off
  49         dv.value = translate("The currently installed 'ddns-scripts' package did not support all available settings.") ..
  50                         "<br />" ..
  51                         translate("Please update to the current version!")
  52 end
  53
  54 -- DDNS Service disabled
  55 if not SYS.init.enabled("ddns") then
  56         local dv = s:option(DummyValue, "_not_enabled")
  57         dv.titleref = DISP.build_url("admin", "system", "startup")
  58         dv.rawhtml  = true
  59         dv.title = bold_on ..
  60                 translate("DDNS Autostart disabled") .. bold_off
  61         dv.value = translate("Currently DDNS updates are not started at boot or on interface events." .. "<br />" ..
  62                         "This is the default if you run DDNS scripts by yourself (i.e. via cron with force_interval set to '0')" )
  63 end
  64
  65 -- No IPv6 support
  66 if not DDNS.check_ipv6() then
  67         local dv = s:option(DummyValue, "_no_ipv6")
  68         dv.titleref = 'http://www.openwrt.org" target="_blank'
  69         dv.rawhtml  = true
  70         dv.title = bold_on ..
  71                 translate("IPv6 not supported") .. bold_off
  72         dv.value = translate("IPv6 is currently not (fully) supported by this system" .. "<br />" ..
  73                         "Please follow the instructions on OpenWrt's homepage to enable IPv6 support" .. "<br />" ..
  74                         "or update your system to the latest OpenWrt Release")
  75 end
  76
  77 -- No HTTPS support
  78 if not has_ssl then
  79         local dv = s:option(DummyValue, "_no_https")
  80         dv.titleref = DISP.build_url("admin", "system", "packages")
  81         dv.rawhtml  = true
  82         dv.title = bold_on ..
  83                 translate("HTTPS not supported") .. bold_off
  84         dv.value = translate("Neither GNU Wget with SSL nor cURL installed to support updates via HTTPS protocol.") ..
  85                         "<br />- " ..
  86                         translate("You should install GNU Wget with SSL (prefered) or cURL package.") ..
  87                         "<br />- " ..
  88                         translate("In some versions cURL/libcurl in OpenWrt is compiled without proxy support.")
  89 end
  90
  91 -- No bind_network
  92 if not has_ssl then
  93         local dv = s:option(DummyValue, "_no_bind_network")
  94         dv.titleref = DISP.build_url("admin", "system", "packages")
  95         dv.rawhtml  = true
  96         dv.title = bold_on ..
  97                 translate("Binding to a specific network not supported") .. bold_off
  98         dv.value = translate("Neither GNU Wget with SSL nor cURL installed to select a network to use for communication.") ..
  99                         "<br />- " ..
 100                         translate("You should install GNU Wget with SSL or cURL package.") ..
 101                         "<br />- " ..
 102                         translate("GNU Wget will use the IP of given network, cURL will use the physical interface.") ..
 103                         "<br />- " ..
 104                         translate("In some versions cURL/libcurl in OpenWrt is compiled without proxy support.")
 105 end
 106
 107 -- cURL without proxy support
 108 if has_ssl and not has_proxy then
 109         local dv = s:option(DummyValue, "_no_proxy")
 110         dv.titleref = DISP.build_url("admin", "system", "packages")
 111         dv.rawhtml  = true
 112         dv.title = bold_on ..
 113                 translate("cURL without Proxy Support") .. bold_off
 114         dv.value = translate("cURL is installed, but libcurl was compiled without proxy support.") ..
 115                         "<br />- " ..
 116                         translate("You should install GNU Wget with SSL or replace libcurl.") ..
 117                         "<br />- " ..
 118                         translate("In some versions cURL/libcurl in OpenWrt is compiled without proxy support.")
 119 end
 120
 121 -- "Force IP Version not supported"
 122 if not (has_ssl and has_dnstcp) then
 123         local dv = s:option(DummyValue, "_no_force_ip")
 124         dv.titleref = DISP.build_url("admin", "system", "packages")
 125         dv.rawhtml  = true
 126         dv.title = bold_on ..
 127                 translate("Force IP Version not supported") .. bold_off
 128         local value = translate("BusyBox's nslookup and Wget do not support to specify " ..
 129                         "the IP version to use for communication with DDNS Provider.")
 130         if not has_ssl then
 131                 value = value .. "<br />- " ..
 132                         translate("You should install GNU Wget with SSL (prefered) or cURL package.")
 133         end
 134         if not has_dnstcp then
 135                 value = value .. "<br />- " ..
 136                         translate("You should install BIND host package for DNS requests.")
 137         end
 138         dv.value = value
 139 end
 140
 141 -- "DNS requests via TCP not supported"
 142 if not has_dnstcp then
 143         local dv = s:option(DummyValue, "_no_dnstcp")
 144         dv.titleref = DISP.build_url("admin", "system", "packages")
 145         dv.rawhtml  = true
 146         dv.title = bold_on ..
 147                 translate("DNS requests via TCP not supported") .. bold_off
 148         dv.value = translate("BusyBox's nslookup does not support to specify to use TCP instead of default UDP when requesting DNS server") ..
 149                         "<br />- " ..
 150                         translate("You should install BIND host package for DNS requests.")
 151 end
 152
 153 return m