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annotate mod_adhoc_oauth2_client/mod_adhoc_oauth2_client.lua @ 5259:8fba651b10ef

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mod_http_oauth2: Refactor to allow reuse of OAuth client creation
author Kim Alvefur <zash@zash.se>
date Sun, 19 Mar 2023 22:13:27 +0100
parents 871d140d61bb
children a9c1cc91d3d6
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1 local adhoc = require "util.adhoc";
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2 local dataforms = require "util.dataforms";
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3 local errors = require "util.error";
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4 local hashes = require "util.hashes";
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5 local id = require "util.id";
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6 local jid = require "util.jid";
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7 local base64 = require"util.encodings".base64;
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8
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9 local clients = module:open_store("oauth2_clients", "map");
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10
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11 local iteration_count = module:get_option_number("oauth2_client_iteration_count", 10000);
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12 local pepper = module:get_option_string("oauth2_client_pepper", "");
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13
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14 local new_client = dataforms.new({
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15 title = "Create OAuth2 client";
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16 {var = "FORM_TYPE"; type = "hidden"; value = "urn:uuid:ff0d55ed-2187-4ee0-820a-ab633a911c14#create"};
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17 {name = "name"; type = "text-single"; label = "Client name"; required = true};
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18 {name = "description"; type = "text-multi"; label = "Description"};
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19 {name = "info_url"; type = "text-single"; label = "Informative URL"; desc = "Link to information about your client"; datatype = "xs:anyURI"};
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20 {
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21 name = "redirect_uri";
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22 type = "text-single";
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23 label = "Redirection URI";
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24 desc = "Where to redirect the user after authorizing.";
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25 datatype = "xs:anyURI";
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26 required = true;
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27 };
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28 })
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29
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30 local client_created = dataforms.new({
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31 title = "New OAuth2 client created";
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32 instructions = "Save these details, they will not be shown again";
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33 {var = "FORM_TYPE"; type = "hidden"; value = "urn:uuid:ff0d55ed-2187-4ee0-820a-ab633a911c14#created"};
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34 {name = "client_id"; type = "text-single"; label = "Client ID"};
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35 {name = "client_secret"; type = "text-single"; label = "Client secret"};
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36 })
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37
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38 local function create_client(client, formerr, data)
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39 if formerr then
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40 local errmsg = {"Error in form:"};
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41 for field, err in pairs(formerr) do table.insert(errmsg, field .. ": " .. err); end
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42 return {status = "error"; error = {message = table.concat(errmsg, "\n")}};
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43 end
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45 local creator = jid.split(data.from);
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46 local client_uid = id.short();
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47 local client_id = jid.join(creator, module.host, client_uid);
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48 local client_secret = id.long();
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49 local salt = id.medium();
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50 local i = iteration_count;
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51
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52 client.secret_hash = base64.encode(hashes.pbkdf2_hmac_sha256(client_secret, salt .. pepper, i));
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53 client.iteration_count = i;
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54 client.salt = salt;
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55
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56 local ok, err = errors.coerce(clients:set(creator, client_uid, client));
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57 module:log("info", "OAuth2 client %q created by %s", client_id, data.from);
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58 if not ok then return {status = "canceled"; error = {message = err}}; end
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59
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60 return {status = "completed"; result = {layout = client_created; values = {client_id = client_id; client_secret = client_secret}}};
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61 end
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62
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63 local handler = adhoc.new_simple_form(new_client, create_client);
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64
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65 module:provides("adhoc", module:require "adhoc".new(new_client.title, new_client[1].value, handler, "local_user"));
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66
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67 -- TODO list/manage/revoke clients