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feat: prosody plugin for sending system chat messages (#14603)
* feat: prosody plugin for sending system chat messages * code review changes * code review changes * update module name * update comment
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,124 @@ | ||
| -- Module which can be used as an http endpoint to send system chat messages to meeting participants. The provided token | ||
| --- in the request is verified whether it has the right to do so. This module should be loaded under the virtual host. | ||
| -- Copyright (C) 2024-present 8x8, Inc. | ||
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| -- curl https://{host}/send-system-message -d '{"message": "testmessage", "to": "{connection_jid}", "room": "{room_jid}"}' -H "content-type: application/json" -H "authorization: Bearer {token}" | ||
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| local util = module:require "util"; | ||
| local token_util = module:require "token/util".new(module); | ||
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| local async_handler_wrapper = util.async_handler_wrapper; | ||
| local room_jid_match_rewrite = util.room_jid_match_rewrite; | ||
| local starts_with = util.starts_with; | ||
| local get_room_from_jid = util.get_room_from_jid; | ||
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| local st = require "util.stanza"; | ||
| local json = require "cjson.safe"; | ||
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| local muc_domain_base = module:get_option_string("muc_mapper_domain_base"); | ||
| local asapKeyServer = module:get_option_string("prosody_password_public_key_repo_url", ""); | ||
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| if asapKeyServer then | ||
| -- init token util with our asap keyserver | ||
| token_util:set_asap_key_server(asapKeyServer) | ||
| end | ||
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| function verify_token(token) | ||
| if token == nil then | ||
| module:log("warn", "no token provided"); | ||
| return false; | ||
| end | ||
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| local session = {}; | ||
| session.auth_token = token; | ||
| local verified, reason, msg = token_util:process_and_verify_token(session); | ||
| if not verified then | ||
| module:log("warn", "not a valid token %s %s", tostring(reason), tostring(msg)); | ||
| return false; | ||
| end | ||
| return true; | ||
| end | ||
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| function handle_send_system_message (event) | ||
| local request = event.request; | ||
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| module:log("debug", "Request for sending a system message received: reqid %s", request.headers["request_id"]) | ||
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| -- verify payload | ||
| if request.headers.content_type ~= "application/json" | ||
| or (not request.body or #request.body == 0) then | ||
| module:log("error", "Wrong content type: %s or missing payload", request.headers.content_type); | ||
| return { status_code = 400; } | ||
| end | ||
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| local payload = json.decode(request.body); | ||
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| if not payload then | ||
| module:log("error", "Request body is missing"); | ||
| return { status_code = 400; } | ||
| end | ||
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| local displayName = payload["displayName"]; | ||
| local message = payload["message"]; | ||
| local to = payload["to"]; | ||
| local payload_room = payload["room"]; | ||
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| if not message or not to or not payload_room then | ||
| module:log("error", "One of [message, to, room] was not provided"); | ||
| return { status_code = 400; } | ||
| end | ||
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| local room_jid = room_jid_match_rewrite(payload_room); | ||
| local room = get_room_from_jid(room_jid); | ||
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| if not room then | ||
| module:log("error", "Room %s not found", room_jid); | ||
| return { status_code = 404; } | ||
| end | ||
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| -- verify access | ||
| local token = request.headers["authorization"] | ||
| if not token then | ||
| module:log("error", "Authorization header was not provided for conference %s", room_jid) | ||
| return { status_code = 401 }; | ||
| end | ||
| if starts_with(token, 'Bearer ') then | ||
| token = token:sub(8, #token) | ||
| else | ||
| module:log("error", "Authorization header is invalid") | ||
| return { status_code = 401 }; | ||
| end | ||
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| if not verify_token(token, room_jid) then | ||
| return { status_code = 401 }; | ||
| end | ||
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| local data = { | ||
| displayName = displayName, | ||
| type = "system_chat_message", | ||
| message = message, | ||
| }; | ||
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| local stanza = st.message({ | ||
| from = room.jid, | ||
| to = to | ||
| }) | ||
| :tag('json-message', { xmlns = 'http://jitsi.org/jitmeet' }) | ||
| :text(json.encode(data)) | ||
| :up(); | ||
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| room:route_stanza(stanza); | ||
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| return { status_code = 200 }; | ||
| end | ||
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| module:log("info", "Adding http handler for /send-system-chat-message on %s", module.host); | ||
| module:depends("http"); | ||
| module:provides("http", { | ||
| default_path = "/"; | ||
| route = { | ||
| ["POST send-system-chat-message"] = function(event) | ||
| return async_handler_wrapper(event, handle_send_system_message) | ||
| end; | ||
| }; | ||
| }); |