AerPatche

--#### Wojbie's AerPatche Server v 0.4

--   Copyright (c) 2017-2021 Wojbie (wojbie@wojbie.net)
--   Redistribution and use in source and binary forms, with or without modification, are permitted (subject to the limitations in the disclaimer below) provided that the following conditions are met:
--   1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
--   2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
--   3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
--   4. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
--   5. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
--   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. YOU ACKNOWLEDGE THAT THIS SOFTWARE IS NOT DESIGNED, LICENSED OR INTENDED FOR USE IN THE DESIGN, CONSTRUCTION, OPERATION OR MAINTENANCE OF ANY NUCLEAR FACILITY.

for i,k in pairs(redstone.getSides()) do
    if peripheral.getType(k) == "modem" then
        rednet.open(k)
    end
end

local id,message,domain
local root = "/web"

local filebrowser = [[

local tArgs= {...}

--# Number clamp
local function clamp(nMin,nNumber,nMax)
    if type(nMin) ~= "number" or type(nNumber) ~= "number" or type(nMax) ~= "number" then error("Not a number.",2) end
    return math.min(math.max( nMin, nNumber ), nMax )
end

--Basic Menu implementation (List mode) (tFunctions is optional and will run function assigned to number selected from tOptions is exists)
local function simpleMenu(tOptions,nStartPoint,tFunctions)

    if type( tOptions ) ~= "table" or
        (nStartPoint ~= nil and type( nStartPoint ) ~= "number") or
        (tFunctions ~= nil and type( tFunctions ) ~= "table") then
        error( "Expected table, [number], [table]", 2 )
    end
    tFunctions = tFunctions or {}

    local x,y=term.getSize()
    local cText,CBack = term.getTextColor(),term.getBackgroundColor()
    local selected = clamp(1,nStartPoint or 1,#tOptions)
    local offset = 0

    local function list()
        offset = #tOptions <= y and 0 or clamp(0,selected-math.floor(y/2),#tOptions-y)
        term.clear()
        for i=1,#tOptions do
            term.setCursorPos(1,i)
            if i+offset == selected then term.setTextColor(CBack) term.setBackgroundColor(cText) term.clearLine()
            elseif i+offset == selected+1 then term.setTextColor(cText) term.setBackgroundColor(CBack) end
            term.write(tOptions[i+offset])
        end
        term.setTextColor(cText) term.setBackgroundColor(CBack)
    end
    list()
    local event,x,y
    while true do
        event= {os.pullEvent()}
        x,y = term.getSize()
        if event[1]=="key" then
            if event[2]==keys.numPadEnter or event[2]==keys.enter then
                if type(tFunctions) == "function" then -- If table of functions is a function then run it with seleced number
                    return tFunctions(selected)
                elseif tFunctions[selected] then --If not function (like true) its non selectable entry. If a function run it.
                    if type(tFunctions[selected]) == "function" then return selected,tFunctions[selected]() end
                else
                    return selected
                end
            elseif event[2]==keys.down then
                    selected=math.min(selected+1,#tOptions)
                    list()
            elseif event[2]==keys.up then
                    selected=math.max(selected-1,1)
                    list()
            elseif event[2]==keys.pageDown then
                    selected=math.min(selected+y,#tOptions)
                    list()
            elseif event[2]==keys.pageUp then
                    selected=math.max(selected-y,1)
                    list()
            end
        elseif event[1] == "mouse_click" then
            local line = offset + event[4]
            if line == selected then
                if type(tFunctions) == "function" then -- If table of functions is a function then run it with seleced number
                    return tFunctions(selected)
                elseif tFunctions[selected] then --If not function (like true) its non selectable entry. If a function run it.
                    if type(tFunctions[selected]) == "function" then return selected,tFunctions[selected]() end
                else
                    return selected
                end
            else
                selected = clamp(1,line,#tOptions)
                list()
            end
        elseif event[1] == "mouse_scroll" then
            selected = clamp(1,selected+event[2],#tOptions)
            list()
        end
    end

end

local selected = simpleMenu(list,2,{true})
if selected then return shell.run(tArgs[1].." "..adress[selected]) end
]]

--Main part of program.

local function isPage(sPath)
    local path = fs.combine(root,sPath)
    if fs.isDir(path) then
        local p = fs.combine(path,"index")
        if fs.exists(p) then path = p end
    end
    return fs.exists(path) and path or false
end

local function getPage(sPath)
    local path = isPage(sPath)
    if not path then return false end
    local data = {}
    if fs.isDir(path) then
        local list,adress = {sPath.." : "},{""}
        if string.match(sPath,"[/%\\]") then
            list[2] = ".."
            adress[2] = fs.combine(sPath,"..")
        end
        for i,k in pairs(fs.list(path)) do
            if fs.isDir(fs.combine(path,k)) then
                table.insert(list,k.."/")
            else
                table.insert(list,k)
            end
            table.insert(adress,fs.combine(sPath,k))
        end
        data[1]= "local list = {'"..table.concat(list , "','").."'}"
        data[2]= "local adress = {'"..table.concat(adress , "','").."'}"
        data[3]= filebrowser
    else
        local f = fs.open(path,"r")
        for line in f.readLine do
            table.insert(data,line)
        end
        f.close()
    end
    return data
end

while true do
    id,message = rednet.receive("GET")
    if type(message) == "string" then
        print("Req: "..message.." from:"..id)
        if isPage(message) then
            rednet.send(id,getPage(message),"GET")
        else
            rednet.send(id,{[[print("ERROR 404 - No page ]]..message..[[ on this server")]]},"GET")
        end
    end
end