12 local open = io.open; |
12 local open = io.open; |
13 local t_concat = table.concat; |
13 local t_concat = table.concat; |
14 |
14 |
15 local http_base = "www_files"; |
15 local http_base = "www_files"; |
16 |
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 :(" }; |
17 local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" }; |
18 local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" }; |
18 |
19 |
19 local http_path = { http_base }; |
20 local function preprocess_path(path) |
20 local function handle_request(method, body, request) |
21 if path:sub(1,1) ~= "/" then |
21 local path = request.url.path:gsub("%.%.%/", ""):gsub("^/[^/]+", ""); |
22 path = "/"..path; |
22 http_path[2] = path; |
23 end |
23 local f, err = open(t_concat(http_path), "r"); |
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 |
|
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"); |
24 if not f then return response_404; end |
40 if not f then return response_404; end |
25 local data = f:read("*a"); |
41 local data = f:read("*a"); |
26 f:close(); |
42 f:close(); |
27 return data; |
43 return data; |
28 end |
44 end |
29 |
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 |
30 local ports = config.get(module.host, "core", "http_ports") or { 5280 }; |
59 local ports = config.get(module.host, "core", "http_ports") or { 5280 }; |
31 httpserver.new_from_config(ports, "files", handle_request); |
60 httpserver.set_default_handler(handle_default_request); |
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61 httpserver.new_from_config(ports, "files", handle_file_request); |