Pushers HTTP API
----------------
To receive any notification pokes at all, it is necessary to configure a
'pusher' on the Home Server that you wish to receive notifications from. There
is a single API endpoint for this::
POST $PREFIX/pushers/set
This takes a JSON object with the following keys:
pushkey
This is a unique identifier for this pusher. The value you should use for this
is the routing or destination address information for the notification, for
example, the APNS token for APNS or the Registration ID for GCM. If your
notification client has no such concept, use any unique identifier. Max length,
512 bytes.
kind
The kind of pusher to configure. 'http' makes a pusher that sends HTTP pokes.
null deletes the pusher.
profile_tag
This is a string that determines what set of device rules will be matched when
evaluating push rules for this pusher. It is an arbitrary string. Multiple
devices maybe use the same profile_tag. It is advised that when an app's
data is copied or restored to a different device, this value remain the same.
Client apps should offer ways to change the profile_tag, optionally copying
rules from the old profile tag. Max length, 32 bytes.
app_id
appId is a reverse-DNS style identifier for the application. It is recommended
that this end with the platform, such that different platform versions get
different app identifiers. Max length, 64 chars.
app_display_name
A string that will allow the user to identify what application owns this
pusher.
device_display_name
A string that will allow the user to identify what device owns this pusher.
lang
The preferred language for receiving notifications (eg, 'en' or 'en-US')
data
A dictionary of information for the pusher implementation itself. For HTTP
pushers, this must contain a 'url' key which is a string of the URL that
should be used to send notifications.
append
If this is set to boolean true, the Home Server should add another pusher
with the given pushkey and App ID in addition to any others with different
user IDs. Otherwise, the Home Server must remove any other pushers with the
same App ID and pushkey for different users. The default is false.
If the pusher was created successfully, a JSON dictionary is returned (which may
be empty).
Push Rules
----------
Home Servers have an interface to configure what events trigger notifications.
This behaviour is configured through 'Push Rules'. Push Rules come in a variety
of different kinds and each kind of rule has an associated priority. The
different kinds of rule, in descending order of priority, are:
Override Rules
The highest priority rules are user-configured overrides.
Content Rules
These configure behaviour for (unencrypted) messages that match certain
patterns. Content rules take one parameter, 'pattern', that gives the pattern
to match against. This is treated in the same way as pattern for event_match
conditions, below.
Room Rules
These change the behaviour of all messages to a given room. The rule_id of a
room rule is always the ID of the room that it affects.
Sender
These rules configure notification behaviour for messages from a specific,
named Matrix user ID. The rule_id of Sender rules is always the Matrix user
ID of the user whose messages theyt apply to.
Underride
These are identical to override rules, but have a lower priority than content,
room and sender rules.
In addition, each kind of rule may be either global or device-specific. Device
specific rules only affect delivery of notifications via pushers with a matching
profile_tag. All device-specific rules are higher priority than all global
rules. Thusly, the full list of rule kinds, in descending priority order, is as
follows:
* Device-specific Override
* Device-specific Content
* Device-specific Room
* Device-specific Sender
* Device-specific Underride
* Global Override
* Global Content
* Global Room
* Global Sender
* Global Underride
For some kinds of rule, rules of the same kind also have an ordering with
respect to one another. The kinds that do not are room and sender rules where
the rules are mutually exclusive by definition and therefore an ordering would
be redundant. Actions for the highest priority rule and only that rule apply
(for example, a set_tweak action in a lower priority rule will not apply if a
higher priority rule matches, even if that rule does not specify any tweaks).
Rules also have an identifier, rule_id, which is a string. The rule_id is
unique within the kind of rule and scope: rule_ids need not be unique between
rules of the same kind on different devices.
A home server may also have server default rules of each kind and in each scope.
Server default rules are lower priority than user-defined rules in each scope.
Server default rules (and only server default rules) begin with a dot ('.')
character.
In addition, all rules may be enabled or disabled. Disabled rules never match.
If no rules match an event, the Home Server should not notify for the message
(that is to say, the default action is "dont-notify"). Events that the user sent
themself are never alerted for.
Predefined Rules
----------------
Matrix specifies the following rule IDs for server default rules. Home Servers
may define rules as follows with the given IDs. If Home Servers provide rules
with these IDs, their semantics should match those given below:
.m.rule.contains_user_name
Matches any message whose content is unencrypted and contains the local part
of the user's Matrix ID, separated by word boundaries.
Definition (as a content rule)::
{
"rule_id": ".m.rule.contains_user_name"
"pattern": "[the lcoal part of the user's Matrix ID]",
"actions": [
"notify",
{
"set_tweak": "sound",
"value": "default"
}
],
}
.m.rule.contains_display_name
Matches any message whose content is unencrypted and contains the user's
current display name in the room in which it was sent.
Definition (this rule can only be an override or underride rule)::
{
"rule_id": ".m.rule.contains_display_name"
"conditions": [
{
"kind": "contains_display_name"
}
],
"actions": [
"notify",
{
"set_tweak": "sound",
"value": "default"
}
],
}
.m.rule.room_one_to_one
Matches any message sent in a room with exactly two members.
Definition (this rule can only be an override or underride rule)::
{
"rule_id": ".m.rule.room_two_members"
"conditions": [
{
"is": "2",
"kind": "room_member_count"
}
],
"actions": [
"notify",
{
"set_tweak": "sound",
"value": "default"
}
],
}
.m.rule.suppress_notices
Matches messages with 'msgtype' of 'notice'. This should be an override rule
such that, when enabled, it takes priority over content / sender / room rules.
Definition::
{
'rule_id': '.m.rule.suppress_notices',
'conditions': [
{
'kind': 'event_match',
'key': 'content.msgtype',
'pattern': 'm.notice',
}
],
'actions': [
'dont-notify',
]
}
.m.rule.fallback
Matches any message. Used to define the behaviour of messages that match no
other rules. Therefore, if Home Servers define this, it should be the lowest
priority underride rule.
Definition::
{
"rule_id": ".m.rule.fallback"
"conditions": [],
"actions": [
"notify"
],
}
Push Rules: Actions:
--------------------
All rules have an associated list of 'actions'. An action affects if and how a
notification is delievered for a matching event. This standard defines the
following actions, although if Home servers wish to support more, they are free
to do so:
notify
This causes each matching event to generate a notification.
dont_notify
Prevents this event from generating a notification
coalesce
This enables notifications for matching events but activates Home Server
specific behaviour to intelligently coalesce multiple events into a single
notification. Not all Home Servers may support this. Those that do not should
treat it as the 'notify' action.
set_tweak
Sets an entry in the 'tweaks' dictionary key that is sent in the notification
poke. This takes the form of a dictionary with a 'set_tweak' key whose value
is the name of the tweak to set. It may also have a 'value' key which is
the value to which it should be set.
Actions that have no parameters are represented as a string. Otherwise, they are
represented as a dictionary with a key equal to their name and other keys as
their parameters, eg. { "set_tweak": "sound", "value": "default" }
Push Rules: Actions: Tweaks
---------------------------
The 'set_tweak' key action is used to add an entry to the 'tweaks' dictionary
that is sent in the notification poke. The following tweaks are defined:
sound
A sound to be played when this notification arrives. 'default' means to
play a default sound.
highlight
Whether or not this message should be highlighted in the UI. This will
normally take the form of presenting the message in a different colour and/or
weight. The UI might also be adjusted to draw particular attention to the room
in which the event occurred. The value may be omitted from the highlight
tweak, in which case it should be read as if it had a value of true.
Tweaks are passed transparently through the Home Server so client applications
and push gateways may agree on additional tweaks, for example, how to flash the
notification light on a mobile device.
If a kind of tweak that a client understands is not specified in an action, the
client may choose a sensible behaviour for the tweak.
Push Rules: Conditions
----------------------
Override, Underride and Default rules have a list of 'conditions'. All
conditions must hold true for an event in order for a rule to be applied to an
event. A rule with no conditions always matches. Matrix specifies the following
conditions, although if Home Servers wish to support others, they are free to
do so:
event_match
This is a glob pattern match on a field of the event. Parameters:
* 'key': The dot-separated field of the event to match, eg. content.body
* 'pattern': The glob-style pattern to match against. Patterns with no
special glob characters should be treated as having asterisks
prepended and appended when testing the condition.
profile_tag
Matches the profile_tag of the device that the notification would be
delivered to. Parameters:
* 'profile_tag': The profile_tag to match with.
contains_display_name
This matches unencrypted messages where content.body contains the owner's
display name in that room. This is a separate rule because display names may
change and as such it would be hard to maintain a rule that matched the user's
display name. This condition has no parameters.
room_member_count
This matches the current number of members in the room.
* 'is': A decimal integer optionally prefixed by one of, '==', '<', '>',
'>=' or '<='. A prefix of '<' matches rooms where the member count is
strictly less than the given number and so forth. If no prefix is present,
this matches rooms where the member count is exactly equal to the given
number (ie. the same as '==').
Room, Sender, User and Content rules do not have conditions in the same way,
but instead have predefined conditions, the behaviour of which can be configured
using parameters named as described above. In the cases of room and sender
rules, the rule_id of the rule determines its behaviour.
Push Rules: API
---------------
Rules live under a hierarchy in the REST API that resembles::
$PREFIX/pushrules/<scope>/<kind>/<rule_id>
The component parts are as follows:
scope
Either 'global' or 'device/<profile_tag>' to specify global rules or
device rules for the given profile_tag.
kind
The kind of rule, ie. 'override', 'underride', 'sender', 'room', 'content'.
rule_id
The identifier for the rule.
To add or change a rule, a client performs a PUT request to the appropriate URL.
When adding rules of a type that has an ordering, the client can add parameters
that define the priority of the rule:
before
Use 'before' with a rule_id as its value to make the new rule the next-more
important rule with respect to the given rule.
after
This makes the new rule the next-less important rule relative to the given
rule.
All requests to the push rules API also require an access_token as a query
paraemter.
The content of the PUT request is a JSON object with a list of actions under the
'actions' key and either conditions (under the 'conditions' key) or the
appropriate parameters for the rule (under the appropriate key name).
Examples:
To create a rule that suppresses notifications for the room with ID '!dj234r78wl45Gh4D:matrix.org'::
curl -X PUT -H "Content-Type: application/json" -d '{ "actions" : ["dont_notify"] }' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/room/%21dj234r78wl45Gh4D%3Amatrix.org?access_token=123456"
To suppress notifications for the user '@spambot:matrix.org'::
curl -X PUT -H "Content-Type: application/json" -d '{ "actions" : ["dont_notify"] }' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/sender/%40spambot%3Amatrix.org?access_token=123456"
To always notify for messages that contain the work 'cake' and set a specific sound (with a rule_id of 'SSByZWFsbHkgbGlrZSBjYWtl')::
curl -X PUT -H "Content-Type: application/json" -d '{ "pattern": "cake", "actions" : ["notify", {"set_sound":"cakealarm.wav"}] }' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/content/SSByZWFsbHkgbGlrZSBjYWtl?access_token=123456"
To add a rule suppressing notifications for messages starting with 'cake' but ending with 'lie', superseeding the previous rule::
curl -X PUT -H "Content-Type: application/json" -d '{ "pattern": "cake*lie", "actions" : ["notify"] }' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/content/U3BvbmdlIGNha2UgaXMgYmVzdA?access_token=123456&before=SSByZWFsbHkgbGlrZSBjYWtl"
To add a custom sound for notifications messages containing the word 'beer' in any rooms with 10 members or fewer (with greater importance than the room, sender and content rules)::
curl -X PUT -H "Content-Type: application/json" -d '{ "conditions": [{"kind": "event_match", "key": "content.body", "pattern": "beer" }, {"kind": "room_member_count", "is": "<=10"}], "actions" : ["notify", {"set_sound":"beeroclock.wav"}] }' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/override/U2VlIHlvdSBpbiBUaGUgRHVrZQ?access_token=123456
To delete rules, a client would just make a DELETE request to the same URL::
curl -X DELETE "http://localhost:8008/_matrix/client/api/v1/pushrules/global/room/%23spam%3Amatrix.org?access_token=123456"
Retrieving the current ruleset can be done either by fetching individual rules
using the scheme as specified above. This returns the rule in the same format as
would be given in the PUT API with the addition of a rule_id::
curl "http://localhost:8008/_matrix/client/api/v1/pushrules/global/room/%23spam%3Amatrix.org?access_token=123456"
Returns::
{
"actions": [
"dont_notify"
],
"rule_id": "#spam:matrix.org",
"enabled": true
}
Clients can also fetch broader sets of rules by removing path components.
Requesting the root level returns a structure as follows::
{
"device": {
"exampledevice": {
"content": [],
"override": [],
"room": [
{
"actions": [
"dont_notify"
],
"rule_id": "#spam:matrix.org",
"enabled", true
}
],
"sender": [],
"underride": []
}
},
"global": {
"content": [],
"override": [],
"room": [],
"sender": [],
"underride": []
}
}
Adding patch components to the request drills down into this structure to filter
to only the requested set of rules.
Enabling and Disabling Rules
----------------------------
Rules can be enabled or disabled with a PUT operation to the 'enabled' component
beneath the rule's URI with a content of 'true' or 'false'::
curl -X PUT -H "Content-Type: application/json" -d 'false' "http://localhost:8008/_matrix/client/api/v1/pushrules/global/sender/%40spambot%3Amatrix.org/enabled?access_token=123456"
