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-- querystring and post body parsing
local function urldecode(s)
return s:gsub('+',' ')
:gsub('%%(%x%x)',function(x)
return string.char(tonumber(x,16))
end)
end
local function parse_qs(s)
local ix = 1
local res = {}
while true do
local _,next_ix,ek,ev = s:find("([^=]+)=([^&]*)&?",ix)
if not ek then break end
local k,v = urldecode(ek), urldecode(ev)
res[k] = v
ix = next_ix + 1
end
return res
end
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