author | Kim Alvefur <zash@zash.se> |
Fri, 04 Sep 2015 00:23:46 +0200 | |
changeset 1831 | 9376e870f0e1 |
parent 1821 | 1971ff719e72 |
child 1852 | e5243fa16210 |
permissions | -rw-r--r-- |
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1 |
-- mod_http_upload |
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2 |
-- |
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3 |
-- Copyright (C) 2015 Kim Alvefur |
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4 |
-- |
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5 |
-- This file is MIT/X11 licensed. |
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-- |
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7 |
-- Implementation of HTTP Upload file transfer mechanism used by Conversations |
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parents:
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8 |
-- |
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|
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
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10 |
-- imports |
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11 |
local st = require"util.stanza"; |
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12 |
local lfs = require"lfs"; |
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13 |
local uuid = require"util.uuid".generate; |
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14 |
|
1819
abacf6698d97
mod_http_upload: Include join_path function, should make it work with 0.9.x
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15 |
local function join_path(a, b) |
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mod_http_upload: Fix typo (thanks mo)
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16 |
return a .. package.config:sub(1,1) .. b; |
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17 |
end |
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18 |
|
1776
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19 |
-- depends |
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20 |
module:depends("http"); |
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25c28644fae8
mod_http_upload: Depend on mod_disco, allows it to be discovered when set up as a component
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21 |
module:depends("disco"); |
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23 |
-- namespace |
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24 |
local xmlns_http_upload = "eu:siacs:conversations:http:upload"; |
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25 |
|
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26 |
module:add_feature(xmlns_http_upload); |
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27 |
|
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28 |
-- state |
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29 |
local pending_slots = module:shared("upload_slots"); |
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|
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31 |
local storage_path = join_path(prosody.paths.data, module.name); |
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32 |
lfs.mkdir(storage_path); |
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|
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34 |
-- hooks |
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module:hook("iq/host/"..xmlns_http_upload..":request", function (event) |
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36 |
local stanza, origin = event.stanza, event.origin; |
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-- local clients only |
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38 |
if origin.type ~= "c2s" then |
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39 |
origin.send(st.error_reply(stanza, "cancel", "not-authorized")); |
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40 |
return true; |
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41 |
end |
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42 |
-- validate |
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43 |
local filename = stanza.tags[1]:get_child_text("filename"); |
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44 |
if not filename or filename:find("/") then |
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45 |
origin.send(st.error_reply(stanza, "modify", "bad-request")); |
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46 |
return true; |
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47 |
end |
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|
48 |
local reply = st.reply(stanza); |
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49 |
reply:tag("slot", { xmlns = xmlns_http_upload }); |
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parents:
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50 |
local random = uuid(); |
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51 |
pending_slots[random.."/"..filename] = origin.full_jid; |
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52 |
local url = module:http_url() .. "/" .. random .. "/" .. filename; |
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53 |
reply:tag("get"):text(url):up(); |
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54 |
reply:tag("put"):text(url):up(); |
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55 |
origin.send(reply); |
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56 |
return true; |
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57 |
end); |
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58 |
|
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59 |
-- http service |
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60 |
local function upload_data(event, path) |
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61 |
if not pending_slots[path] then |
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62 |
return 401; |
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63 |
end |
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64 |
local random, filename = path:match("^([^/]+)/([^/]+)$"); |
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65 |
if not random then |
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66 |
return 400; |
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67 |
end |
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68 |
local dirname = join_path(storage_path, random); |
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69 |
if not lfs.mkdir(dirname) then |
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70 |
module:log("error", "Could not create directory %s for upload", dirname); |
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71 |
return 500; |
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72 |
end |
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73 |
local full_filename = join_path(dirname, filename); |
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74 |
local fh, ferr = io.open(full_filename, "w"); |
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parents:
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75 |
if not fh then |
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76 |
module:log("error", "Could not open file %s for upload: %s", full_filename, ferr); |
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|
77 |
return 500; |
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|
78 |
end |
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79 |
local ok, err = fh:write(event.request.body); |
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80 |
if not ok then |
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|
81 |
module:log("error", "Could not write to file %s for upload: %s", full_filename, err); |
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parents:
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|
82 |
os.remove(full_filename); |
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parents:
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|
83 |
return 500; |
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parents:
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|
84 |
end |
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parents:
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|
85 |
ok, err = fh:close(); |
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parents:
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|
86 |
if not ok then |
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|
87 |
module:log("error", "Could not write to file %s for upload: %s", full_filename, err); |
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|
88 |
os.remove(full_filename); |
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89 |
return 500; |
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parents:
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|
90 |
end |
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parents:
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91 |
module:log("info", "File uploaded by %s to slot %s", pending_slots[path], random); |
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|
92 |
pending_slots[path] = nil; |
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|
93 |
return 200; |
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parents:
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|
94 |
end |
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parents:
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|
95 |
|
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|
96 |
local serve_uploaded_files = module:depends("http_files").serve(storage_path); |
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parents:
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97 |
|
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parents:
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|
98 |
local function size_only(request, data) |
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|
99 |
request.headers.content_size = #data; |
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|
100 |
return 200; |
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parents:
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|
101 |
end |
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parents:
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102 |
|
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parents:
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|
103 |
local function serve_head(event, path) |
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parents:
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|
104 |
event.send = size_only; |
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|
105 |
return serve_uploaded_files(event, path); |
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parents:
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|
106 |
end |
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
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parents:
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107 |
|
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parents:
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|
108 |
module:provides("http", { |
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
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parents:
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|
109 |
route = { |
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
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parents:
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|
110 |
["GET /*"] = serve_uploaded_files; |
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parents:
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111 |
["HEAD /*"] = serve_head; |
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Kim Alvefur <zash@zash.se>
parents:
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112 |
["PUT /*"] = upload_data; |
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
Kim Alvefur <zash@zash.se>
parents:
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113 |
}; |
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mod_http_upload: Implementation of Conversations HTTP upload file transfer mode
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parents:
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114 |
}); |