Tue, 03 Mar 2009 17:25:20 +0000
pposix: Standardize error messages
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Add mod_actions_http for executing actions through HTTP
Matthew Wild <mwild1@gmail.com>
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1 | |
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2 | local httpserver = require "net.httpserver"; |
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Add mod_actions_http for executing actions through HTTP
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3 | local t_concat, t_insert = table.concat, table.insert; |
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4 | |
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5 | local log = log; |
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6 | |
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7 | local response_404 = { status = "404 Not Found", body = "<h1>No such action</h1>Sorry, I don't have the action you requested" }; |
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8 | |
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9 | local control = require "core.actions".actions; |
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10 | |
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11 | |
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12 | local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = string.char(tonumber("0x"..k)); return t[k]; end }); |
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13 | |
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14 | local function urldecode(s) |
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15 | return s and (s:gsub("+", " "):gsub("%%([a-fA-F0-9][a-fA-F0-9])", urlcodes)); |
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16 | end |
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17 | |
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18 | local function query_to_table(query) |
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19 | if type(query) == "string" and #query > 0 then |
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20 | if query:match("=") then |
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21 | local params = {}; |
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22 | for k, v in query:gmatch("&?([^=%?]+)=([^&%?]+)&?") do |
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23 | if k and v then |
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24 | params[urldecode(k)] = urldecode(v); |
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25 | end |
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26 | end |
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27 | return params; |
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28 | else |
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29 | return urldecode(query); |
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30 | end |
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31 | end |
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32 | end |
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33 | |
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34 | |
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35 | |
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36 | local http_path = { http_base }; |
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37 | local function handle_request(method, body, request) |
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38 | local path = request.url.path:gsub("^/[^/]+/", ""); |
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39 | |
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40 | local curr = control; |
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41 | |
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42 | for comp in path:gmatch("([^/]+)") do |
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43 | curr = curr[comp]; |
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44 | if not curr then |
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45 | return response_404; |
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46 | end |
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47 | end |
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48 | |
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49 | if type(curr) == "table" then |
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50 | local s = {}; |
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51 | for k,v in pairs(curr) do |
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52 | t_insert(s, tostring(k)); |
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53 | t_insert(s, " = "); |
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54 | if type(v) == "function" then |
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55 | t_insert(s, "action") |
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Matthew Wild <mwild1@gmail.com>
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56 | elseif type(v) == "table" then |
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57 | t_insert(s, "list"); |
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58 | else |
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59 | t_insert(s, tostring(v)); |
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60 | end |
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61 | t_insert(s, "\n"); |
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62 | end |
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63 | return t_concat(s); |
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64 | elseif type(curr) == "function" then |
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65 | local params = query_to_table(request.url.query); |
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66 | params.host = request.headers.host:gsub(":%d+", ""); |
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67 | local ok, ret1, ret2 = pcall(curr, params); |
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68 | if not ok then |
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69 | return "EPIC FAIL: "..tostring(ret1); |
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70 | elseif not ret1 then |
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71 | return "FAIL: "..tostring(ret2); |
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72 | else |
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73 | return "OK: "..tostring(ret2); |
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74 | end |
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75 | end |
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76 | end |
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77 | |
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78 | httpserver.new{ port = 5280, base = "control", handler = handle_request, ssl = false } |