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annotate mod_ogp/mod_ogp.lua @ 4409:44f6537f6427

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mod_invites_adhoc: Fail contact invite if user is not on current host Only the username was being used, and the host of the requester ignored. Luckily this only affects admins of the host. If they want to create an account they can use the other command. If they want to create a contact they should request from their account on this host.
author Matthew Wild <mwild1@gmail.com>
date Thu, 28 Jan 2021 07:04:11 +0000
parents 38da10e4b593
children dbfda7f5522d
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1 local mod_muc = module:depends("muc")
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2 local http = require "net.http"
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3 local st = require "util.stanza"
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4
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5 local ogp_pattern = [[<meta property=["']?(og:.-)["']? content=%s*["']?(.-)["']?%s-/?>]]
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6 local ogp_pattern2 = [[<meta content=%s*["']?(.-)["']? property=["']?(og:.-)["']?%s-/?>]]
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7 local url_pattern = [[https?://%S+]]
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8
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9 local function ogp_handler(event)
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10 local room, stanza = event.room, st.clone(event.stanza)
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11 local body = stanza:get_child_text("body")
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12 if not body then return; end
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13
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14 local url = body:match(url_pattern)
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15 if not url then return; end
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16
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17 local origin_id = stanza:find("{urn:xmpp:sid:0}origin-id@id")
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18 if not origin_id then return; end
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19
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20 http.request(
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21 url,
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22 nil,
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23 function(response_body, response_code, _)
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24 if response_code ~= 200 then
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25 return
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26 end
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27
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28 local to = room.jid
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29 local from = room and room.jid or module.host
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30 local fastening = st.message({to = to, from = from}):tag("apply-to", {xmlns = "urn:xmpp:fasten:0", id = origin_id})
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31 local found_metadata = false
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32 local message_body = ""
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33
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34 local meta_pattern = [[<meta (.-)/?>]]
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35 for match in response_body:gmatch(meta_pattern) do
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36 local property = match:match([[property=%s*["']?(og:.-)["']?%s]])
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37 if not property then
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38 property = match:match([[property=["']?(og:.-)["']$]])
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39 end
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40
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41 local content = match:match([[content=%s*["'](.-)["']%s]])
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42 if not content then
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43 content = match:match([[content=["']?(.-)["']$]])
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44 end
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45 if not content then
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46 content = match:match([[content=(.-) property]])
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47 end
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48 if not content then
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49 content = match:match([[content=(.-)$]])
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50 end
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51
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52 if property and content then
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53 module:log("info", property .. "\t" .. content)
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54 fastening:tag(
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55 "meta",
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56 {
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57 xmlns = "http://www.w3.org/1999/xhtml",
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58 property = property,
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59 content = content
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60 }
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61 ):up()
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62 found_metadata = true
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63 message_body = message_body .. property .. "\t" .. content .. "\n"
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64 end
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65 end
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66
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67
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68 if found_metadata then
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69 mod_muc.get_room_from_jid(room.jid):broadcast_message(fastening)
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70 end
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71 module:log("info", tostring(fastening))
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72 end
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73 )
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74 end
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75
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76 module:hook("muc-occupant-groupchat", ogp_handler)