applications: add luci-app-opkg

Add a new luci-app-opkg which is a feature-complete replacement for the
builtin opkg functionality of luci-mod-system using mostly client side
JavaScript to reduce the amount of server side processing.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 100 insertions, 0 deletions

diff --git a/applications/luci-app-opkg/luasrc/controller/opkg.lua b/applications/luci-app-opkg/luasrc/controller/opkg.lua
new file mode 100644
index 000000000..74aa16618
--- /dev/null
+++ b/applications/luci-app-opkg/luasrc/controller/opkg.lua
@@ -0,0 +1,100 @@
+-- Copyright 2018 Jo-Philipp Wich <jo@mein.io>
+-- Licensed to the public under the Apache License 2.0.
+
+module("luci.controller.opkg", package.seeall)
+
+function index()
+	entry({"admin", "system", "opkg"}, template("opkg"), _("Software"), 30)
+	entry({"admin", "system", "opkg", "list"}, call("action_list")).leaf = true
+	entry({"admin", "system", "opkg", "exec"}, post("action_exec")).leaf = true
+	entry({"admin", "system", "opkg", "statvfs"}, call("action_statvfs")).leaf = true
+	entry({"admin", "system", "opkg", "config"}, post_on({ data = true }, "action_config")).leaf = true
+end
+
+function action_list(mode)
+	local cmd
+
+	if mode == "installed" then
+		cmd = { "/bin/cat", "/usr/lib/opkg/status" }
+	else
+		cmd = { "/bin/sh", "-c", [[find /tmp/opkg-lists/ -type f '!' -name '*.sig' | xargs -r gzip -cd]] }
+	end
+
+	luci.http.prepare_content("text/plain; charset=utf-8")
+	luci.sys.process.exec(cmd, luci.http.write)
+end
+
+function action_exec(command, package)
+	local sys = require "luci.sys"
+	local cmd = { "/bin/opkg", "--force-removal-of-dependent-packages", "--force-overwrite" }
+	local pkg = luci.http.formvalue("package")
+
+	if luci.http.formvalue("autoremove") == "true" then
+		cmd[#cmd + 1] = "--autoremove"
+	end
+
+	cmd[#cmd + 1] = command
+
+	if pkg then
+		cmd[#cmd + 1] = pkg
+	end
+
+	luci.http.prepare_content("application/json")
+	luci.http.write_json(sys.process.exec(cmd, true, true))
+end
+
+function action_statvfs()
+	local fs = require "nixio.fs"
+
+	luci.http.prepare_content("application/json")
+	luci.http.write_json(fs.statvfs("/") or {})
+end
+
+function action_config()
+	local fs = require "nixio.fs"
+	local js = require "luci.jsonc"
+	local data = luci.http.formvalue("data")
+
+	if data then
+		data = js.parse(data)
+
+		if not data then
+			luci.http.status(400, "Bad Request")
+			return
+		end
+
+		local file, content
+		for file, content in pairs(data) do
+			if type(content) ~= "string" or
+			   (file ~= "opkg.conf" and not file:match("^opkg/[^/]+%.conf$"))
+			then
+				luci.http.status(400, "Bad Request")
+				return
+			end
+
+			local path = "/etc/%s" % file
+			if not fs.access(path, "w") then
+				luci.http.status(403, "Permission denied")
+				return
+			end
+
+			fs.writefile(path, content:gsub("\r\n", "\n"))
+		end
+
+		luci.http.status(204, "Saved")
+	else
+		local rv = { ["opkg.conf"] = fs.readfile("/etc/opkg.conf") }
+		local entries = fs.dir("/etc/opkg")
+		if entries then
+			local entry
+			for entry in entries do
+				if entry:match("%.conf$") then
+					rv["opkg/%s" % entry] = fs.readfile("/etc/opkg/%s" % entry)
+				end
+			end
+		end
+
+		luci.http.prepare_content("application/json")
+		luci.http.write_json(rv)
+	end
+end