Tue, 06 Oct 2009 18:05:31 +0100
util.stanza: Make xml_escape publicly accessible
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1 | -- Prosody IM |
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2 | -- Copyright (C) 2008-2009 Matthew Wild |
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3 | -- Copyright (C) 2008-2009 Waqas Hussain |
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4 | -- |
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5 | -- This project is MIT/X11 licensed. Please see the |
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6 | -- COPYING file in the source package for more information. |
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7 | -- |
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8 | |
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9 | |
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10 | local httpserver = require "net.httpserver"; |
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11 | |
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12 | local open = io.open; |
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13 | local t_concat = table.concat; |
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14 | |
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15 | local http_base = config.get("*", "core", "http_path") or "www_files"; |
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16 | |
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17 | local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" }; |
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18 | local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" }; |
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19 | |
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20 | local function preprocess_path(path) |
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21 | if path:sub(1,1) ~= "/" then |
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22 | path = "/"..path; |
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23 | end |
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24 | local level = 0; |
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25 | for component in path:gmatch("([^/]+)/") do |
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26 | if component == ".." then |
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27 | level = level - 1; |
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28 | elseif component ~= "." then |
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29 | level = level + 1; |
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30 | end |
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31 | if level < 0 then |
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32 | return nil; |
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33 | end |
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34 | end |
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35 | return path; |
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36 | end |
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37 | |
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38 | function serve_file(path) |
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39 | local f, err = open(http_base..path, "r"); |
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40 | if not f then return response_404; end |
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41 | local data = f:read("*a"); |
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42 | f:close(); |
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43 | return data; |
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44 | end |
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45 | |
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46 | local function handle_file_request(method, body, request) |
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47 | local path = preprocess_path(request.url.path); |
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48 | if not path then return response_400; end |
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49 | path = path:gsub("^/[^/]+", ""); -- Strip /files/ |
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50 | return serve_file(path); |
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51 | end |
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52 | |
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53 | local function handle_default_request(method, body, request) |
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54 | local path = preprocess_path(request.url.path); |
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55 | if not path then return response_400; end |
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56 | return serve_file(path); |
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57 | end |
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58 | |
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59 | local ports = config.get(module.host, "core", "http_ports") or { 5280 }; |
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60 | httpserver.set_default_handler(handle_default_request); |
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61 | httpserver.new_from_config(ports, handle_file_request, { base = "files" }); |