--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_http_roster_admin/LICENSE Fri Apr 15 16:59:27 2016 +0000
@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+ means each individual or legal entity that creates, contributes to
+ the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+ means the combination of the Contributions of others (if any) used
+ by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+ means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+ means Source Code Form to which the initial Contributor has attached
+ the notice in Exhibit A, the Executable Form of such Source Code
+ Form, and Modifications of such Source Code Form, in each case
+ including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+ means
+
+ (a) that the initial Contributor has attached the notice described
+ in Exhibit B to the Covered Software; or
+
+ (b) that the Covered Software was made available under the terms of
+ version 1.1 or earlier of the License, but not also under the
+ terms of a Secondary License.
+
+1.6. "Executable Form"
+ means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+ means a work that combines Covered Software with other material, in
+ a separate file or files, that is not Covered Software.
+
+1.8. "License"
+ means this document.
+
+1.9. "Licensable"
+ means having the right to grant, to the maximum extent possible,
+ whether at the time of the initial grant or subsequently, any and
+ all of the rights conveyed by this License.
+
+1.10. "Modifications"
+ means any of the following:
+
+ (a) any file in Source Code Form that results from an addition to,
+ deletion from, or modification of the contents of Covered
+ Software; or
+
+ (b) any new file in Source Code Form that contains any Covered
+ Software.
+
+1.11. "Patent Claims" of a Contributor
+ means any patent claim(s), including without limitation, method,
+ process, and apparatus claims, in any patent Licensable by such
+ Contributor that would be infringed, but for the grant of the
+ License, by the making, using, selling, offering for sale, having
+ made, import, or transfer of either its Contributions or its
+ Contributor Version.
+
+1.12. "Secondary License"
+ means either the GNU General Public License, Version 2.0, the GNU
+ Lesser General Public License, Version 2.1, the GNU Affero General
+ Public License, Version 3.0, or any later versions of those
+ licenses.
+
+1.13. "Source Code Form"
+ means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+ means an individual or a legal entity exercising rights under this
+ License. For legal entities, "You" includes any entity that
+ controls, is controlled by, or is under common control with You. For
+ purposes of this definition, "control" means (a) the power, direct
+ or indirect, to cause the direction or management of such entity,
+ whether by contract or otherwise, or (b) ownership of more than
+ fifty percent (50%) of the outstanding shares or beneficial
+ ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+ Licensable by such Contributor to use, reproduce, make available,
+ modify, display, perform, distribute, and otherwise exploit its
+ Contributions, either on an unmodified basis, with Modifications, or
+ as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+ for sale, have made, import, and otherwise transfer either its
+ Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+ or
+
+(b) for infringements caused by: (i) Your and any other third party's
+ modifications of Covered Software, or (ii) the combination of its
+ Contributions with other software (except as part of its Contributor
+ Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+ its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+ Form, as described in Section 3.1, and You must inform recipients of
+ the Executable Form how they can obtain a copy of such Source Code
+ Form by reasonable means in a timely manner, at a charge no more
+ than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+ License, or sublicense it under different terms, provided that the
+ license for the Executable Form does not attempt to limit or alter
+ the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+* *
+* 6. Disclaimer of Warranty *
+* ------------------------- *
+* *
+* Covered Software is provided under this License on an "as is" *
+* basis, without warranty of any kind, either expressed, implied, or *
+* statutory, including, without limitation, warranties that the *
+* Covered Software is free of defects, merchantable, fit for a *
+* particular purpose or non-infringing. The entire risk as to the *
+* quality and performance of the Covered Software is with You. *
+* Should any Covered Software prove defective in any respect, You *
+* (not any Contributor) assume the cost of any necessary servicing, *
+* repair, or correction. This disclaimer of warranty constitutes an *
+* essential part of this License. No use of any Covered Software is *
+* authorized under this License except under this disclaimer. *
+* *
+************************************************************************
+
+************************************************************************
+* *
+* 7. Limitation of Liability *
+* -------------------------- *
+* *
+* Under no circumstances and under no legal theory, whether tort *
+* (including negligence), contract, or otherwise, shall any *
+* Contributor, or anyone who distributes Covered Software as *
+* permitted above, be liable to You for any direct, indirect, *
+* special, incidental, or consequential damages of any character *
+* including, without limitation, damages for lost profits, loss of *
+* goodwill, work stoppage, computer failure or malfunction, or any *
+* and all other commercial damages or losses, even if such party *
+* shall have been informed of the possibility of such damages. This *
+* limitation of liability shall not apply to liability for death or *
+* personal injury resulting from such party's negligence to the *
+* extent applicable law prohibits such limitation. Some *
+* jurisdictions do not allow the exclusion or limitation of *
+* incidental or consequential damages, so this exclusion and *
+* limitation may not apply to You. *
+* *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+ This Source Code Form is subject to the terms of the Mozilla Public
+ License, v. 2.0. If a copy of the MPL was not distributed with this
+ file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+ This Source Code Form is "Incompatible With Secondary Licenses", as
+ defined by the Mozilla Public License, v. 2.0.
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_http_roster_admin/README Fri Apr 15 16:59:27 2016 +0000
@@ -0,0 +1,91 @@
+mod_http_roster_admin
+=====================
+
+NOTE: THIS MODULE IS RELEASED UNDER THE MOZILLA PUBLIC LICENSE VERSION 2.
+
+Normally the XMPP server will store and maintain the users' contact
+rosters. This module lets you delegate roster management to an external
+service.
+
+Prosody will make an HTTP request to fetch the roster from the external
+service. The service will need to notify Prosody whenever a user's roster
+changes, so that Prosody can fetch a new roster for that user.
+
+Configuring this module
+-----------------------
+
+This module relies on `mod_storage_memory` and `mod_block_subscriptions`.
+
+In `.parts/prosody/etc/prosody/prosody.cfg.lua`, where your particular
+`VirtualHost` is being configured, add the following:
+
+ modules_enabled = {
+ "http_roster_admin",
+ "block_subscriptions",
+ "storage_memory",
+ "http_files"
+ }
+ modules_disabled = {
+ -- Prosody will get the roster from the backend app,
+ -- so we disable the default roster module.
+ "roster"
+ }
+ storage = { roster = "memory" }
+ http_roster_url = "http://localhost/contacts/%s" -- %s will be replaced by an URL-encoded username
+
+The `http_roster_url` parameter needs to be configured to point to the
+URL in the backend application which returns users' contacts rosters.
+
+In this URL, the pattern `%s` is replaced by an URL-encoded username.
+
+When the user *john* then connects to Prosody, and `http_roster_url` is
+set to “http://app.example.org/contacts/%s”, then Prosody will make a
+GET request to http://app.example.org/contacts/john
+
+Notifying Prosody of roster changes
+***********************************
+
+The external service needs to notify Prosody whenever a user's roster
+changes. To do this, it must make an HTTP POST request to either:
+
+* http://localhost:5280/roster_admin/refresh
+* https://localhost:5281/roster_admin/refresh
+
+Make sure that the "http_files" module is enabled in Prosody's configuration,
+for the above URLs to served.
+
+Ports 5280/5281 can be firewalled and the web server (i.e. Apache or Nginx)
+can be configured to reverse proxy those URLs to for example
+https://example.org/http-bind.
+
+The contents of the POST should be a JSON encoded array of usernames whose
+rosters have changed.
+
+For example, if user ‘john’ became friends with ‘aaron’, both john’s
+contact list and aaron’s contact lists have changed:
+
+```
+ ["john", "aaron"]
+```
+
+When the operation is complete Prosody will reply with a summary of the
+operation - a JSON object containing:
+
+* **status**: either “ok” (success) or “error” (operation completely failed)
+* **message**: A human-readable message (for logging and debugging purposes)
+* **updated**: The number of rosters successfully updated
+* **errors**: The number of rosters that failed to update
+
+Example:
+
+```
+ {
+ "status": "ok",
+ "message": "roster update complete",
+ "updated": 2,
+ "errors": 0
+ }
+```
+
+Prosody may also return status codes `400` or `500` in case of errors (such
+as a missing/malformed body).
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mod_http_roster_admin/mod_http_roster_admin.lua Fri Apr 15 16:59:27 2016 +0000
@@ -0,0 +1,297 @@
+-- mod_http_roster_admin
+-- Description: Allow user rosters to be sourced from a remote HTTP API
+--
+-- Version: 1.0
+-- Date: 2015-03-06
+-- Author: Matthew Wild <matthew@prosody.im>
+-- License: MPLv2
+--
+-- Requirements:
+-- Prosody config:
+-- storage = { roster = "memory" }
+-- modules_disabled = { "roster" }
+-- Dependencies:
+-- Prosody 0.9
+-- lua-cjson (Debian/Ubuntu/LuaRocks: lua-cjson)
+
+local http = require "net.http";
+local json = require "cjson";
+local it = require "util.iterators";
+local set = require "util.set";
+local rm = require "core.rostermanager";
+local st = require "util.stanza";
+local array = require "util.array";
+
+local host = module.host;
+local sessions = hosts[host].sessions;
+
+local roster_url = module:get_option_string("http_roster_url", "http://localhost/%s");
+
+-- Send a roster push to the named user, with the given roster, for the specified
+-- contact's roster entry. Used to notify clients of changes/removals.
+local function roster_push(username, roster, contact_jid)
+ local stanza = st.iq({type="set"})
+ :tag("query", {xmlns = "jabber:iq:roster" });
+ local item = roster[contact_jid];
+ if item then
+ stanza:tag("item", {jid = contact_jid, subscription = item.subscription, name = item.name, ask = item.ask});
+ for group in pairs(item.groups) do
+ stanza:tag("group"):text(group):up();
+ end
+ else
+ stanza:tag("item", {jid = contact_jid, subscription = "remove"});
+ end
+ stanza:up():up(); -- move out from item
+ for _, session in pairs(hosts[host].sessions[username].sessions) do
+ if session.interested then
+ session.send(stanza);
+ end
+ end
+end
+
+-- Send latest presence from the named local user to a contact.
+local function send_presence(username, contact_jid, available)
+ module:log("debug", "Sending %savailable presence from %s to contact %s", (available and "" or "un"), username, contact_jid);
+ for resource, session in pairs(sessions[username].sessions) do
+ local pres;
+ if available then
+ pres = st.clone(session.presence);
+ pres.attr.to = contact_jid;
+ else
+ pres = st.presence({ to = contact_jid, from = session.full_jid, type = "unavailable" });
+ end
+ module:send(pres);
+ end
+end
+
+-- Converts a 'friend' object from the API to a Prosody roster item object
+local function friend_to_roster_item(friend)
+ return {
+ name = friend.name;
+ subscription = "both";
+ groups = friend.groups or {};
+ };
+end
+
+-- Returns a handler function to consume the data returned from
+-- the API, compare it to the user's current roster, and perform
+-- any actions necessary (roster pushes, presence probes) to
+-- synchronize them.
+local function updated_friends_handler(username, cb)
+ return (function (ok, code, friends)
+ if not ok then
+ cb(false, code);
+ end
+ local user = sessions[username];
+ local roster = user.roster;
+ local old_contacts = set.new(array.collect(it.keys(roster)));
+ local new_contacts = set.new(array.collect(it.keys(friends)));
+
+ -- These two entries are not real contacts, ignore them
+ old_contacts:remove(false);
+ old_contacts:remove("pending");
+
+ module:log("debug", "New friends list of %s: %s", username, json.encode(friends));
+
+ -- Calculate which contacts have been added/removed since
+ -- the last time we fetched the roster
+ local added_contacts = new_contacts - old_contacts;
+ local removed_contacts = old_contacts - new_contacts;
+
+ local added, removed = 0, 0;
+
+ -- Add new contacts and notify connected clients
+ for contact_jid in added_contacts do
+ module:log("debug", "Processing new friend of %s: %s", username, contact_jid);
+ roster[contact_jid] = friend_to_roster_item(friends[contact_jid]);
+ roster_push(username, roster, contact_jid);
+ send_presence(username, contact_jid, true);
+ added = added + 1;
+ end
+
+ -- Remove contacts and notify connected clients
+ for contact_jid in removed_contacts do
+ module:log("debug", "Processing removed friend of %s: %s", username, contact_jid);
+ roster[contact_jid] = nil;
+ roster_push(username, roster, contact_jid);
+ send_presence(username, contact_jid, false);
+ removed = removed + 1;
+ end
+ module:log("debug", "User %s: added %d new contacts, removed %d contacts", username, added, removed);
+ cb(true);
+ end);
+end
+
+-- Fetch the named user's roster from the API, call callback (cb)
+-- with status and result (friends list) when received.
+function fetch_roster(username, cb)
+ local x = {headers = {}};
+ x["headers"]["ACCEPT"] = "application/json, text/plain, */*";
+ local ok, err = http.request(
+ roster_url:format(username),
+ x,
+ function (roster_data, code)
+ if code ~= 200 then
+ if code ~= 0 then
+ module:log("error", "Error fetching roster from %s (code %d): %s", roster_url:format(username), code, tostring(roster_data):sub(1, 40):match("^[^\r\n]+"));
+ cb(nil, code, roster_data);
+ end
+ return;
+ end
+ module:log("debug", "Successfully fetched roster for %s", username);
+ module:log("debug", "The roster data is %s", roster_data);
+ cb(true, code, json.decode(roster_data));
+ end);
+ if not ok then
+ module:log("error", "Failed to connect to roster API at %s: %s", roster_url:format(username), err);
+ cb(false, 0, err);
+ end
+end
+
+-- Fetch the named user's roster from the API, synchronize it with
+-- the user's current roster. Notify callback (cb) with true/false
+-- depending on success or failure.
+function refresh_roster(username, cb)
+ local user = sessions[username];
+ if not (user and user.roster) then
+ module:log("debug", "User's (%q) roster updated, but they are not online - ignoring", username);
+ cb(true);
+ return;
+ end
+ fetch_roster(username, updated_friends_handler(username, cb));
+end
+
+--- Roster protocol handling ---
+
+-- Build a reply to a "roster get" request
+local function build_roster_reply(stanza, roster_data)
+ local roster = st.reply(stanza)
+ :tag("query", { xmlns = "jabber:iq:roster" });
+
+ for jid, item in pairs(roster_data) do
+ if jid and jid ~= "pending" then
+ roster:tag("item", {
+ jid = jid,
+ subscription = item.subscription,
+ ask = item.ask,
+ name = item.name,
+ });
+ for group in pairs(item.groups) do
+ roster:tag("group"):text(group):up();
+ end
+ roster:up(); -- move out from item
+ end
+ end
+ return roster;
+end
+
+-- Handle clients requesting their roster (generally at login)
+-- This will not work if mod_roster is loaded (in 0.9).
+module:hook("iq-get/self/jabber:iq:roster:query", function(event)
+ local session, stanza = event.origin, event.stanza;
+
+ session.interested = true; -- resource is interested in roster updates
+
+ local roster = session.roster;
+ if roster[false].downloaded then
+ return session.send(build_roster_reply(stanza, roster));
+ end
+
+ -- It's possible that we can call this more than once for a new roster
+ -- Should happen rarely (multiple clients of the same user request the
+ -- roster in the time it takes the API to respond). Currently we just
+ -- issue multiple requests, as it's harmless apart from the wasted
+ -- requests.
+ fetch_roster(session.username, function (ok, code, friends)
+ if not ok then
+ session.send(st.error_reply(stanza, "cancel", "internal-server-error"));
+ session:close("internal-server-error");
+ return;
+ end
+
+ -- Are we the first callback to handle the downloaded roster?
+ local first = roster[false].downloaded == nil;
+
+ if first then
+ -- Fill out new roster
+ for jid, friend in pairs(friends) do
+ roster[jid] = friend_to_roster_item(friend);
+ end
+ end
+
+ -- Send full roster to client
+ session.send(build_roster_reply(stanza, roster));
+
+ if not first then
+ -- We already had a roster, make sure to handle any changes...
+ updated_friends_handler(session.username, nil)(ok, code, friends);
+ end
+ end);
+
+ return true;
+end);
+
+-- Prevent client from making changes to the roster. This will not
+-- work if mod_roster is loaded (in 0.9).
+module:hook("iq-set/self/jabber:iq:roster:query", function(event)
+ local session, stanza = event.origin, event.stanza;
+ return session.send(st.error_reply(stanza, "cancel", "service-unavailable"));
+end);
+
+--- HTTP endpoint to trigger roster refresh ---
+
+-- Handles updating for a single user: GET /roster_admin/refresh/USERNAME
+function handle_refresh_single(event, username)
+ refresh_roster(username, function (ok, code, err)
+ event.response.headers["Content-Type"] = "application/json";
+ event.response:send(json.encode({
+ status = ok and "ok" or "error";
+ message = err or "roster update complete";
+ }));
+ end);
+ return true;
+end
+
+-- Handles updating for multiple users: POST /roster_admin/refresh
+-- Payload should be a JSON array of usernames, e.g. ["user1", "user2", "user3"]
+function handle_refresh_multi(event)
+ local users = json.decode(event.request.body);
+ if not users then
+ module:log("warn", "Multi-user refresh attempted with missing/invalid payload");
+ event.response:send(400);
+ return true;
+ end
+
+ local count, count_err = 0, 0;
+
+ local function cb(ok)
+ count = count + 1;
+ if not ok then
+ count_err = count_err + 1;
+ end
+
+ if count == #users then
+ event.response.headers["Content-Type"] = "application/json";
+ event.response:send(json.encode({
+ status = "ok";
+ message = "roster update complete";
+ updated = count - count_err;
+ errors = count_err;
+ }));
+ end
+ end
+
+ for _, username in ipairs(users) do
+ refresh_roster(username, cb);
+ end
+
+ return true;
+end
+
+
+module:provides("http", {
+ route = {
+ ["POST /refresh"] = handle_refresh_multi;
+ ["GET /refresh/*"] = handle_refresh_single;
+ };
+});