applications: uhttpd: Add a uHTTPd configuration app

uHTTPd has a lot of useful options that ought to be configurable
without have to SSH in, so expose those options in a UI page.

3 files changed, 272 insertions, 0 deletions

diff --git a/applications/luci-app-uhttpd/Makefile b/applications/luci-app-uhttpd/Makefile
new file mode 100644
index 000000000..9a2cf462e
--- /dev/null
+++ b/applications/luci-app-uhttpd/Makefile
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2015 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+LUCI_TITLE:=uHTTPd Webserver Configuration
+LUCI_DEPENDS:=+uhttpd
+LUCI_PKGARCH:=all
+
+PKG_NAME:=luci-app-uhttpd
+PKG_VERSION:=1.0.0
+PKG_RELEASE:=1
+PKG_LICENSE:=Apache-2.0
+PKG_MAINTAINER:=Daniel Dickinson <openwrt@daniel.thecshore.com>
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/package.mk
+
+LUA_TARGET:=source
+
+include ../../luci.mk
+
+# call BuildPackage - OpenWrt buildroot signature
diff --git a/applications/luci-app-uhttpd/luasrc/controller/uhttpd/uhttpd.lua b/applications/luci-app-uhttpd/luasrc/controller/uhttpd/uhttpd.lua
new file mode 100644
index 000000000..2e80dd63b
--- /dev/null
+++ b/applications/luci-app-uhttpd/luasrc/controller/uhttpd/uhttpd.lua
@@ -0,0 +1,17 @@
+-- Copyright 2015 Daniel Dickinson <openwrt@daniel.thecshore.com>
+-- Licensed to the public under the Apache License 2.0.
+
+module("luci.controller.uhttpd.uhttpd", package.seeall)
+
+function index()
+	if not nixio.fs.access("/etc/config/uhttpd") then
+		return
+	end
+
+	local page
+
+	page = entry({"admin", "services", "uhttpd"}, cbi("uhttpd/uhttpd"), _("uHTTPd"))
+	page.leaf = true
+
+end
+
diff --git a/applications/luci-app-uhttpd/luasrc/model/cbi/uhttpd/uhttpd.lua b/applications/luci-app-uhttpd/luasrc/model/cbi/uhttpd/uhttpd.lua
new file mode 100644
index 000000000..03821ad9b
--- /dev/null
+++ b/applications/luci-app-uhttpd/luasrc/model/cbi/uhttpd/uhttpd.lua
@@ -0,0 +1,227 @@
+-- Copyright 2015 Daniel Dickinson <openwrt@daniel.thecshore.com>
+-- Licensed to the public under the Apache License 2.0.
+
+local fs = require("nixio.fs")
+
+local m = Map("uhttpd", translate("uHTTPd"),
+	      translate("A lightweight single-threaded HTTP(S) server"))
+
+local ucs = m:section(TypedSection, "uhttpd", "")
+ucs.addremove = true
+ucs.anonymous = false
+
+local lhttp = nil
+local lhttps = nil
+local cert_file = nil
+local key_file = nil
+
+ucs:tab("general", translate("General Settings"))
+ucs:tab("server", translate("Full Web Server Settings"), translate("For settings primarily geared to serving more than the web UI"))
+ucs:tab("advanced", translate("Advanced Settings"), translate("Settings which are either rarely needed or which affect serving the WebUI"))
+
+lhttp = ucs:taboption("general", DynamicList, "listen_http", translate("HTTP listeners (address:port)"), translate("Bind to specific interface:port (by specifying interface address"))
+lhttp.datatype = "list(ipaddrport(1))"
+
+function lhttp.validate(self, value, section)
+        local have_https_listener = false
+        local have_http_listener = false
+	if lhttp and lhttp:formvalue(section) and (#(lhttp:formvalue(section)) > 0) then
+		for k, v in pairs(lhttp:formvalue(section)) do
+			if v and (v ~= "") then
+				have_http_listener = true
+				break
+			end
+		end
+	end
+	if lhttps and lhttps:formvalue(section) and (#(lhttps:formvalue(section)) > 0) then
+		for k, v in pairs(lhttps:formvalue(section)) do
+			if v and (v ~= "") then
+				have_https_listener = true
+				break
+			end
+		end
+	end
+	if not (have_http_listener or have_https_listener) then
+		return nil, "must listen on at list one address:port"
+	end
+	return DynamicList.validate(self, value, section)
+end
+
+lhttps = ucs:taboption("general", DynamicList, "listen_https", translate("HTTPS listener (address:port)"), translate("Bind to specific interface:port (by specifying interface address"))
+lhttps.datatype = "list(ipaddrport(1))"
+lhttps:depends("cert")
+lhttps:depends("key")
+
+function lhttps.validate(self, value, section)
+        local have_https_listener = false
+        local have_http_listener = false
+	if lhttps and lhttps:formvalue(section) and (#(lhttps:formvalue(section)) > 0) then
+		for k, v in pairs(lhttps:formvalue(section)) do
+			if v and (v ~= "") then
+				have_https_listener = true
+				break
+			end
+		end
+		if have_https_listener and ((not cert_file) or (not cert_file:formvalue(section)) or (cert_file:formvalue(section) == ""))  then
+			return nil, "must have certificate when using https"
+		end
+		if have_https_listener and ((not key_file) or (not key_file:formvalue(section)) or (key_file:formvalue(section) == "")) then
+			return nil, "must have key when using https"
+		end
+	end
+	if lhttp and (lhttp:formvalue(section)) and (#lhttp:formvalue(section) > 0) then
+		for k, v in pairs(lhttp:formvalue(section)) do
+			if v and (v ~= "") then
+				have_http_listener = true
+				break
+			end
+		end
+	end
+	if not (have_http_listener or have_https_listener) then
+		return nil, "must listen on at list one address:port"
+	end
+	return DynamicList.validate(self, value, section)
+end
+
+o = ucs:taboption("general", Flag, "redirect_https", translate("Redirect all HTTP to HTTPS"))
+o.default = o.enabled
+o.rmempty = false
+
+o = ucs:taboption("general", Flag, "rfc1918_filter", translate("Ignore private IPs on public interface"), translate("Prevent access from private (RFC1918) IPs on an interface if it has an public IP address"))
+o.default = o.enabled
+o.rmempty = false
+
+cert_file = ucs:taboption("general", FileUpload, "cert", translate("HTTPS Certificate (DER Encoded)"))
+
+key_file = ucs:taboption("general", FileUpload, "key", translate("HTTPS Private Key (DER Encoded)"))
+
+o = ucs:taboption("general", Button, "remove_old", translate("Remove old certificate and key"),
+		  translate("uHTTPd will generate a new self-signed certificate using the configuration shown below."))
+o.inputstyle = "remove"
+
+function o.write(self, section)
+	if cert_file:cfgvalue(section) and fs.access(cert_file:cfgvalue(section)) then fs.unlink(cert_file:cfgvalue(section)) end
+	if key_file:cfgvalue(section) and fs.access(key_file:cfgvalue(section)) then fs.unlink(key_file:cfgvalue(section)) end
+	luci.sys.call("/etc/init.d/uhttpd restart")
+	luci.http.redirect(luci.dispatcher.build_url("admin", "services", "uhttpd"))
+end
+
+o = ucs:taboption("general", Button, "remove_conf", translate("Remove configuration for certificate and key"),
+	translate("This permanently deletes the cert, key, and configuration to use same."))
+o.inputstyle = "remove"
+
+function o.write(self, section)
+	if cert_file:cfgvalue(section) and fs.access(cert_file:cfgvalue(section)) then fs.unlink(cert_file:cfgvalue(section)) end
+	if key_file:cfgvalue(section) and fs.access(key_file:cfgvalue(section)) then fs.unlink(key_file:cfgvalue(section)) end
+	self.map:del(section, "cert")
+	self.map:del(section, "key")
+	self.map:del(section, "listen_https")
+	luci.http.redirect(luci.dispatcher.build_url("admin", "services", "uhttpd"))
+end
+
+o = ucs:taboption("server", DynamicList, "index_page", translate("Index page(s)"), translate("E.g specify with index.html and index.php when using PHP"))
+o.optional = true
+o.placeholder = "index.html"
+
+o = ucs:taboption("server", DynamicList, "interpreter", translate("CGI filetype handler"), translate("Interpreter to associate with file endings ('suffix=handler', e.g. '.php=/usr/bin/php-cgi')"))
+o.optional = true
+
+o = ucs:taboption("server", Flag, "no_symlinks", translate("Do not follow symlinks outside document root"))
+o.optional = true
+
+o = ucs:taboption("server", Flag, "no_dirlists", translate("Do not generate directory listings."))
+o.default = o.disabled
+
+o = ucs:taboption("server", DynamicList, "alias", translate("Aliases"), translate("(/old/path=/new/path) or (just /old/path which becomes /cgi-prefix/old/path)"))
+o.optional = true
+
+o = ucs:taboption("server", Value, "realm", translate("Realm for Basic Auth"))
+o.optional = true
+o.placeholder = luci.sys.hostname() or "OpenWrt"
+
+local httpconfig = ucs:taboption("server", Value, "config", translate("Config file (e.g. for credentials for Basic Auth)"), translate("Will not use HTTP authentication if not present"))
+httpconfig.optional = true
+
+o = ucs:taboption("server", Value, "error_page", translate("404 Error"), translate("Virtual URL or CGI script to display on status '404 Not Found'.  Must begin with '/'"))
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "home", translate("Document root"),
+		  translate("Base directory for files to be served"))
+o.default = "/www"
+o.datatype = "directory"
+
+o = ucs:taboption("advanced", Value, "cgi_prefix", translate("Path prefix for CGI scripts"), translate("CGI is disabled if not present."))
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "lua_prefix", translate("Virtual path prefix for Lua scripts"))
+o.placeholder = "/lua"
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "lua_handler", translate("Full real path to handler for Lua scripts"), translate("Embedded Lua interpreter is disabled if not present."))
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "ubus_prefix", translate("Virtual path prefix for ubus via JSON-RPC integration"), translate("ubus integration is disabled if not present"))
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "ubus_socket", translate("Override path for ubus socket"))
+o.optional = true
+
+o = ucs:taboption("advanced", Flag, "ubus_cors", translate("Enable JSON-RPC Cross-Origin Resource Support"))
+o.default = o.disabled
+o.optional = true
+
+o = ucs:taboption("advanced", Flag, "no_ubusauth", translate("Disable JSON-RPC authorization via ubus session API"))
+o.optional= true
+o.default = o.disabled
+
+o = ucs:taboption("advanced", Value, "script_timeout", translate("Maximum wait time for Lua, CGI, or ubus execution"))
+o.placeholder = 60
+o.datatype = "uinteger"
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "network_timeout", translate("Maximum wait time for network activity"))
+o.placeholder = 30
+o.datatype = "uinteger"
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "http_keepalive", translate("Connection reuse"))
+o.placeholder = 20
+o.datatype = "uinteger"
+o.optional = true
+
+o = ucs:taboption("advanced", Value, "tcp_keepalive", translate("TCP Keepalive"))
+o.optional = true
+o.datatype = "uinteger"
+o.default = 1
+
+o = ucs:taboption("advanced", Value, "max_connections", translate("Maximum number of connections"))
+o.optional = true
+o.datatype = "uinteger"
+
+o = ucs:taboption("advanced", Value, "max_requests", translate("Maximum number of script requests"))
+o.optional = true
+o.datatype = "uinteger"
+
+local s = m:section(NamedSection, "px5g", "cert", translate("uHTTPd Self-signed Certificate Parameters"))
+
+o = s:option(Value, "days", translate("Valid for # of Days"))
+o.default = 730
+o.datatype = "uinteger"
+
+o = s:option(Value, "bits", translate("Length of key in bits"))
+o.default = 1024
+o.datatype = "min(1024)"
+
+o = s:option(Value, "commonname", translate("Server Hostname"), translate("a.k.a CommonName"))
+o.default = luci.sys.hostname()
+
+o = s:option(Value, "country", translate("Country"))
+o.default = "ZZ"
+
+o = s:option(Value, "state", translate("State"))
+o.default = "Unknown"
+
+o = s:option(Value, "location", translate("Location"))
+o.default = "Somewhere"
+
+return m