Mercurial > prosody-modules
view mod_aws_profile/mod_aws_profile.lua @ 4976:75b6e5df65f9
various: Improve error reporting if missing file server module on 0.12
If there is some error loading net.http.files then it would be swallowed
by the pcall and then it would proceed to trying mod_http_files, which
might cause unexpected behavior on 0.12
Ref #1765
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 18 Jul 2022 22:47:54 +0200 |
parents | 1d719d4ef18f |
children | 616c0459aca7 |
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local http = require "net.http"; local json = require "util.json"; local parse_timestamp = require "util.datetime".parse; module:set_global(); local current_credentials = module:shared("/*/aws_profile/credentials"); local function get_role_credentials(role_name, cb) http.request("http://169.254.169.254/latest/meta-data/iam/security-credentials/"..role_name, nil, function (credentials_json) local credentials = credentials_json and json.decode(credentials_json); if not credentials or not (credentials.AccessKeyId and credentials.SecretAccessKey) then module:log("warn", "Failed to fetch credentials for %q", role_name); cb(nil); return; end local expiry = parse_timestamp(credentials.Expiration); local ttl = os.difftime(expiry, os.time()); cb({ access_key = credentials.AccessKeyId; secret_key = credentials.SecretAccessKey; ttl = ttl; expiry = expiry; }); end); end local function get_credentials(cb) http.request("http://169.254.169.254/latest/meta-data/iam/security-credentials", nil, function (role_name) role_name = role_name and role_name:match("%S+"); if not role_name then module:log("warn", "Unable to discover role name"); cb(nil); return; end get_role_credentials(role_name, cb); end); end function refresh_credentials(force) if not force and current_credentials.expiry and current_credentials.expiry - os.time() > 300 then return; end get_credentials(function (credentials) if not credentials then module:log("warn", "Failed to refresh credentials!"); return; end current_credentials.access_key = credentials.access_key; current_credentials.secret_key = credentials.secret_key; current_credentials.expiry = credentials.expiry; module:timer(credentials.ttl or 240, refresh_credentials); module:fire_event("aws_profile/credentials-refreshed", current_credentials); end); end function module.load() refresh_credentials(true); end