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This commit adds a new endpoint type, namely 'smtp'. This endpoint
uses the `lettre` crate to directly send emails to SMTP relays.
The `lettre` crate was chosen since it is by far the most popular SMTP
implementation for Rust that looks like it is well maintained.
Also, it includes async support (for when we want to extend
proxmox-notify to be async).
For this new endpoint type, a new section-config type was introduced
(smtp). It has the same fields as the type for `sendmail`, with the
addition of some new options (smtp server, authentication, tls mode,
etc.).
Some of the behavior that is shared between sendmail and smtp
endpoints has been moved to a new `endpoints::common::mail` module.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This commit moves PVEContext from `proxmox-perl-rs` into the
`proxmox-notify` crate, since we now also need to access it from
`promxox-mail-forward`. The context is now hidden behind a feature
flag `pve-context`, ensuring that we only compile it when needed.
This commit adds PBSContext, since we now require it for
`proxmox-mail-forward`. Some of the code for PBSContext comes
from `proxmox-mail-forward`.
This commit also changes the global context from being stored in a
`once_cell` to a regular `Mutex`, since we now need to set/reset
the context in `proxmox-mail-forward`.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
As preparation for the integration of `proxmox-mail-foward` into the
notification system, this commit makes a few changes that allow us to
forward raw email messages (as passed from postfix).
For mail-based notification targets, the email will be forwarded
as-is, including all headers. The only thing that changes is the
message envelope.
For other notification targets, the mail is parsed using the
`mail-parser` crate, which allows us to extract a subject and a body.
As a body we use the plain-text version of the mail. If an email is
HTML-only, the `mail-parser` crate will automatically attempt to
transform the HTML into readable plain text.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This should be a bit more intuitive to users than the current
behavior, which is 'always match' for mode==all and 'never match' for
mode==any. The current behavior originates in the neutral element of
the underlying logical operation (and, or).
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This shifts notification routing into the matcher-system. Every
notification has associated metadata (key-value fields, severity -
to be extended) that can be match with match directives in
notification matchers. Right now, there are 2 matching directives,
match-field and match-severity. The first one allows one to do a
regex match/exact match on a metadata field, the other one allows one
to match one or more severites.
Every matcher also allows 'target' directives, these decide which
target(s) will be notified if a matcher matches a notification.
Since routing now happens in matchers, the API for sending is
simplified, since we do not need to specify a target any more.
The API routes for filters and groups have been removed completely.
The parser for the configuration file will still accept filter/group
entries, but will delete them once the config is saved again. This is
needed to allow a smooth transition from the old system to the new
system, since the old system was already available on pvetest.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This will be useful later for system mail forwarding, where
the content of the mail should be forwarded unchanged.
This moves notification properties into this new type and calls them
'data'. They will exclusively used for template rendering.
`Notification` will receive a separate field for metadata, which
will be useful for notification filtering. This decouples
template rendering and filtering, which enables us to be very precise
about which metadata fields we allow to be used in filters.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This commit has the aim of making template rendering a bit more
robust. It does so by a.) Accepting also strings for helpers that
expect a number, parsing the number if needed, and b.) Ignoring errors
if a template helper fails to render a value and showing an error in
the logs, instead of failing to render the whole template (leading
to no notification being sent).
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
[w.bumiller@proxmox.com: set d/changelog to UNRELEASED]
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This introduces a new configuration parameter `mailto-user`.
A user's email address will be looked up in the product-specific
user database.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Since `proxmox-notify` is intended to be used by multiple products,
there needs to be a way to inject product-specific behavior.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This commit adds template rendering to the `proxmox-notify` crate, based
on the `handlebars` crate.
Title and body of a notification are rendered using any `properties`
passed along with the notification. There are also a few helpers,
allowing to render tables from `serde_json::Value`.
'Value' renderers. These can also be used in table cells using the
'renderer' property in a table schema:
- {{human-bytes val}}
Render bytes with human-readable units (base 2)
- {{duration val}}
Render a duration (based on seconds)
- {{timestamp val}}
Render a unix-epoch (based on seconds)
There are also a few 'block-level' helpers.
- {{table val}}
Render a table from given val (containing a schema for the columns,
as well as the table data)
- {{object val}}
Render a value as a pretty-printed json
- {{heading_1 val}}
Render a top-level heading
- {{heading_2 val}}
Render a not-so-top-level heading
- {{verbatim val}} or {{/verbatim}}<content>{{#verbatim}}
Do not reflow text. NOP for plain text, but for HTML output the text
will be contained in a <pre> with a regular font.
- {{verbatim-monospaced val}} or
{{/verbatim-monospaced}}<content>{{#verbatim-monospaced}}
Do not reflow text. NOP for plain text, but for HTML output the text
will be contained in a <pre> with a monospaced font.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
This commit adds a way to filter notifications based on severity. The
filter module also has the necessary foundation work for more complex
filters, e.g. matching on properties or for creating arbitarily complex
filter structures using nested sub-filters.
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
Add an endpoint for Gotify [1], showing the how easy it is to add new
endpoint implementations.
[1] https://gotify.net/
Signed-off-by: Lukas Wagner <l.wagner@proxmox.com>
