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util/http.lua @ 12678:5a61e1603f42
mod_smacks: Don't close resuming session when failed due to overflow
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 26 Aug 2022 17:28:06 +0100 |
parent | 9785:ff88b03c343f |
child | 13124:f15e23840780 |
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-- Prosody IM -- Copyright (C) 2013 Florian Zeitz -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local format, char = string.format, string.char; local pairs, ipairs = pairs, ipairs; local t_insert, t_concat = table.insert, table.concat; local url_codes = {}; for i = 0, 255 do local c = char(i); local u = format("%%%02x", i); url_codes[c] = u; url_codes[u] = c; url_codes[u:upper()] = c; end local function urlencode(s) return s and (s:gsub("[^a-zA-Z0-9.~_-]", url_codes)); end local function urldecode(s) return s and (s:gsub("%%%x%x", url_codes)); end local function _formencodepart(s) return s and (urlencode(s):gsub("%%20", "+")); end local function formencode(form) local result = {}; if form[1] then -- Array of ordered { name, value } for _, field in ipairs(form) do t_insert(result, _formencodepart(field.name).."=".._formencodepart(field.value)); end else -- Unordered map of name -> value for name, value in pairs(form) do t_insert(result, _formencodepart(name).."=".._formencodepart(value)); end end return t_concat(result, "&"); end local function formdecode(s) if not s:match("=") then return urldecode(s); end local r = {}; for k, v in s:gmatch("([^=&]*)=([^&]*)") do k, v = k:gsub("%+", "%%20"), v:gsub("%+", "%%20"); k, v = urldecode(k), urldecode(v); t_insert(r, { name = k, value = v }); r[k] = v; end return r; end local function contains_token(field, token) field = ","..field:gsub("[ \t]", ""):lower()..","; return field:find(","..token:lower()..",", 1, true) ~= nil; end local function normalize_path(path, is_dir) if is_dir then if path:sub(-1,-1) ~= "/" then path = path.."/"; end else if path:sub(-1,-1) == "/" then path = path:sub(1, -2); end end if path:sub(1,1) ~= "/" then path = "/"..path; end return path; end return { urlencode = urlencode, urldecode = urldecode; formencode = formencode, formdecode = formdecode; contains_token = contains_token; normalize_path = normalize_path; };