prosody
b3ae48362f78
util/http.lua

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util/http.lua @ 11226:b3ae48362f78 0.11

mod_s2s: Prevent whitespace keepalives the stream has been opened This will result in the stream timing out instead, which is probably correct if the stream has not been opened yet. This was already done for c2s in e69df8093387 Thanks Ge0rG
author Kim Alvefur <zash@zash.se>
date Thu, 10 Dec 2020 11:53:10 +0100
parent 9504:cfbea3064aa9
child 9759:1af5106a2c34
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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cc9d460aa779 util.http: New module for HTTP helper functions
Florian Zeitz <florob@babelmonkeys.de>
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1 -- Prosody IM
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2 -- Copyright (C) 2013 Florian Zeitz
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7
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8 local format, char = string.format, string.char;
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9 local pairs, ipairs, tonumber = pairs, ipairs, tonumber;
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10 local t_insert, t_concat = table.insert, table.concat;
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11
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12 local function urlencode(s)
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13 return s and (s:gsub("[^a-zA-Z0-9.~_-]", function (c) return format("%%%02x", c:byte()); end));
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14 end
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15 local function urldecode(s)
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16 return s and (s:gsub("%%(%x%x)", function (c) return char(tonumber(c,16)); end));
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17 end
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18
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19 local function _formencodepart(s)
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20 return s and (s:gsub("%W", function (c)
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21 if c ~= " " then
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22 return format("%%%02x", c:byte());
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23 else
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24 return "+";
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25 end
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26 end));
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27 end
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28
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29 local function formencode(form)
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30 local result = {};
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31 if form[1] then -- Array of ordered { name, value }
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32 for _, field in ipairs(form) do
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33 t_insert(result, _formencodepart(field.name).."=".._formencodepart(field.value));
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34 end
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35 else -- Unordered map of name -> value
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36 for name, value in pairs(form) do
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37 t_insert(result, _formencodepart(name).."=".._formencodepart(value));
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38 end
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39 end
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40 return t_concat(result, "&");
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41 end
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42
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43 local function formdecode(s)
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44 if not s:match("=") then return urldecode(s); end
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45 local r = {};
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46 for k, v in s:gmatch("([^=&]*)=([^&]*)") do
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47 k, v = k:gsub("%+", "%%20"), v:gsub("%+", "%%20");
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48 k, v = urldecode(k), urldecode(v);
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49 t_insert(r, { name = k, value = v });
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50 r[k] = v;
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51 end
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52 return r;
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53 end
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54
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55 local function contains_token(field, token)
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56 field = ","..field:gsub("[ \t]", ""):lower()..",";
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57 return field:find(","..token:lower()..",", 1, true) ~= nil;
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58 end
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59
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60 local function normalize_path(path, is_dir)
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61 if is_dir then
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62 if path:sub(-1,-1) ~= "/" then path = path.."/"; end
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63 else
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64 if path:sub(-1,-1) == "/" then path = path:sub(1, -2); end
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65 end
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66 if path:sub(1,1) ~= "/" then path = "/"..path; end
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67 return path;
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68 end
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69
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70 return {
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71 urlencode = urlencode, urldecode = urldecode;
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72 formencode = formencode, formdecode = formdecode;
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73 contains_token = contains_token;
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74 normalize_path = normalize_path;
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75 };