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- -- The MIT License (MIT)
- --
- -- Copyright (c) 2014 Cyril David <cyx@cyx.is>
- --
- -- Permission is hereby granted, free of charge, to any person obtaining a copy
- -- of this software and associated documentation files (the "Software"), to deal
- -- in the Software without restriction, including without limitation the rights
- -- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- -- copies of the Software, and to permit persons to whom the Software is
- -- furnished to do so, subject to the following conditions:
- --
- -- The above copyright notice and this permission notice shall be included in
- -- all copies or substantial portions of the Software.
- --
- -- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- -- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- -- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- -- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- -- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- -- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- -- THE SOFTWARE.
- local uri = require("lib/uri-f570bf7")
- local insert = table.insert
- local concat = table.concat
- local format = string.format
- local gmatch = string.gmatch
- local sub = string.sub
- local gsub = string.gsub
- local find = string.find
- -- identity function
- local function identity(val)
- return val
- end
- -- trim and remove double quotes
- local function clean(str)
- local s = gsub(str, "^%s*(.-)%s*$", "%1")
-
- if sub(s, 1, 1) == '"' then
- s = sub(s, 2, -2)
- end
- return s
- end
- -- given a unix timestamp, return a utc string
- local function to_utc_string(time)
- return os.date("%a, %d %b %Y %H:%I:%S GMT", time)
- end
- local CODEX = {
- {"max_age", "Max-Age=%d", identity},
- {"domain", "Domain=%s", identity},
- {"path", "Path=%s", identity},
- {"expires", "Expires=%s", to_utc_string},
- {"http_only", "HttpOnly", identity},
- {"secure", "Secure", identity},
- }
- local function build(dict, options)
- options = options or {}
- local res = {}
- for k, v in pairs(dict) do
- insert(res, format("%s=%s", k, uri.encode(v)))
- end
- for _, tuple in ipairs(CODEX) do
- local key, template, fn = unpack(tuple)
- local val = options[key]
- if val then
- insert(res, format(template, fn(val)))
- end
- end
- return concat(res, "; ")
- end
- local function parse(data)
- local res = {}
- for pair in gmatch(data, "[^;]+") do
- local eq = find(pair, "=")
- if eq then
- local key = clean(sub(pair, 1, eq-1))
- local val = clean(sub(pair, eq+1))
- if not res[key] then
- res[key] = uri.decode(val)
- end
- end
- end
- return res
- end
- return {
- build = build,
- parse = parse
- }
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