Mercurial > prosody-modules
view mod_reload_components/README.markdown @ 4651:8231774f5bfd
mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8
The `body:sub()` call risks splitting the string in the middle of a
multi-byte UTF-8 sequence. This should have been caught by util.stanza
validation, but that would have caused some havoc, at the very least causing
the notification to not be sent.
There have been no reports of this happening. Likely because this module
isn't widely deployed among users with languages that use many longer UTF-8
sequences.
The util.encodings.utf8.valid() function is O(n) where only the last
sequence really needs to be checked, but it's in C and expected to be fast.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 22 Aug 2021 13:22:59 +0200 |
parents | 85d04dd87f14 |
children |
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Introduction ============ This module allows to load/unload external components after they have been added/removed to a configuration file. It is necessary to explicitly initiate a reload on Prosody either via prosodyctl reload or config:reload(). Example 1: -------- If Prosody has started with this configuration file: ``` {.lua} VirtualHost "example.com" authentication = "internal_plain" Component "a.example.com" component_secret = "a" Component "b.example.com" component_secret = "b" ``` And the file has changed manually or dynamically to: ``` {.lua} VirtualHost "example.com" authentication = "internal_plain" Component "a.example.com" component_secret = "a" Component "c.example.com" component_secret = "c" ``` Then, the following actions will occur if this module is loaded: 1. The component c.example.com will be loaded and start bouncing for authentication. 2. The component b.example.com will be unloaded and deactivated. The connection with it will not be closed, but no further actions will be executed on Prosody. Example 2: -------- If Prosody has started with this configuration file: ``` {.lua} VirtualHost "example.com" authentication = "internal_plain" Component "a.example.com" component_secret = "a" ``` And the file has changed manually or dynamically to: ``` {.lua} VirtualHost "example.com" authentication = "internal_plain" Component "a.example.com" component_secret = "a" VirtualHost "newexample.com" authentication = "internal_plain" Component "a.newexample.com" component_secret = "a" ``` Then, the following actions will occur if this module is loaded: 1. The component a.newexample.com will be loaded and start bouncing for authentication. Note that its respective VirtualHost is not loaded. Bad things may happen. Usage ===== Copy the module folder into your Prosody modules directory. Place the module between your enabled modules either into the global or a vhost section. No configuration directives are needed Info ==== - 0.9, works