89 lines
2.5 KiB
Lua
89 lines
2.5 KiB
Lua
local socket = require"socket"
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local http = require"socket.http"
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local url = require"socket.url"
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local ltn12 = require"ltn12"
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local token_class = '[^%c%s%(%)%<%>%@%,%;%:%\\%"%/%[%]%?%=%{%}]'
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local function unquote(t, quoted)
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local n = string.match(t, "%$(%d+)$")
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if n then n = tonumber(n) end
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if quoted[n] then return quoted[n]
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else return t end
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end
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local function parse_set_cookie(c, quoted, cookie_table)
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c = c .. ";$last=last;"
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local _, _, n, v, i = string.find(c, "(" .. token_class ..
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"+)%s*=%s*(.-)%s*;%s*()")
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local cookie = {
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name = n,
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value = unquote(v, quoted),
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attributes = {}
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}
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while 1 do
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_, _, n, v, i = string.find(c, "(" .. token_class ..
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"+)%s*=?%s*(.-)%s*;%s*()", i)
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if not n or n == "$last" then break end
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cookie.attributes[#cookie.attributes+1] = {
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name = n,
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value = unquote(v, quoted)
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}
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end
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cookie_table[#cookie_table+1] = cookie
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end
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local function split_set_cookie(s, cookie_table)
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cookie_table = cookie_table or {}
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-- remove quoted strings from cookie list
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local quoted = {}
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s = string.gsub(s, '"(.-)"', function(q)
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quoted[#quoted+1] = q
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return "$" .. #quoted
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end)
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-- add sentinel
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s = s .. ",$last="
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-- split into individual cookies
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i = 1
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while 1 do
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local _, _, cookie, next_token
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_, _, cookie, i, next_token = string.find(s, "(.-)%s*%,%s*()(" ..
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token_class .. "+)%s*=", i)
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if not next_token then break end
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parse_set_cookie(cookie, quoted, cookie_table)
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if next_token == "$last" then break end
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end
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return cookie_table
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end
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local function quote(s)
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if string.find(s, "[ %,%;]") then return '"' .. s .. '"'
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else return s end
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end
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local _empty = {}
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local function build_cookies(cookies)
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s = ""
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for i,v in ipairs(cookies or _empty) do
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if v.name then
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s = s .. v.name
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if v.value and v.value ~= "" then
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s = s .. '=' .. quote(v.value)
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end
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end
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if v.name and #(v.attributes or _empty) > 0 then s = s .. "; " end
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for j,u in ipairs(v.attributes or _empty) do
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if u.name then
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s = s .. u.name
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if u.value and u.value ~= "" then
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s = s .. '=' .. quote(u.value)
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end
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end
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if j < #v.attributes then s = s .. "; " end
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end
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if i < #cookies then s = s .. ", " end
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end
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return s
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end
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