Activity Stream Pings¶

The Activity Stream system add-on sends various types of pings to the backend (HTTPS POST) Onyx server :

a health ping that reports whether or not a user has a custom about:home or about:newtab page
a session ping that describes the ending of an Activity Stream session (a new tab is closed or refreshed), and
an event ping that records specific data about individual user interactions while interacting with Activity Stream
an impression_stats ping that records data about Pocket impressions and user interactions

Schema definitions/validations that can be used for tests can be found in system-addon/test/schemas/pings.js.

Example Activity Stream `health` log¶

{
  "addon_version": "20180710100040",
  "client_id": "374dc4d8-0cb2-4ac5-a3cf-c5a9bc3c602e",
  "locale": "en-US",
  "version": "62.0a1",
  "release_channel": "nightly",
  "event": "AS_ENABLED",
  "value": 10,

  // These fields are generated on the server
  "date": "2016-03-07",
  "ip": "10.192.171.13",
  "ua": "python-requests/2.9.1",
  "receive_at": 1457396660000
}

Example Activity Stream `session` Log¶

{
  // These fields are sent from the client
  "action": "activity_stream_session",
  "addon_version": "20180710100040",
  "client_id": "374dc4d8-0cb2-4ac5-a3cf-c5a9bc3c602e",
  "locale": "en-US",
  "page": ["about:newtab" | "about:home" | "about:welcome" | "unknown"],
  "session_duration": 1635,
  "session_id": "{12dasd-213asda-213dkakj}",
  "profile_creation_date": 14786,
  "user_prefs": 7

  // These fields are generated on the server
 "date": "2016-03-07",
  "ip": "10.192.171.13",
  "ua": "python-requests/2.9.1",
  "receive_at": 1457396660000
}

Example Activity Stream `user_event` Log¶

{
  "action": "activity_stream_user_event",
  "action_position": "3",
  "addon_version": "20180710100040",
  "client_id": "374dc4d8-0cb2-4ac5-a3cf-c5a9bc3c602e",
  "event": "click or scroll or search or delete",
  "locale": "en-US",
  "page": ["about:newtab" | "about:home" | "about:welcome" | "unknown"],
  "source": "top sites, or bookmarks, or...",
  "session_id": "{12dasd-213asda-213dkakj}",
  "recommender_type": "pocket-trending",
  "metadata_source": "MetadataService or Local or TippyTopProvider",
  "user_prefs": 7

  // These fields are generated on the server
  "ip": "10.192.171.13",
  "ua": "python-requests/2.9.1",
  "receive_at": 1457396660000,
  "date": "2016-03-07",
}

Example Activity Stream `impression_stats` Logs¶

{
  "impression_id": "{005deed0-e3e4-4c02-a041-17405fd703f6}",
  "addon_version": "20180710100040",
  "locale": "en-US",
  "source": "pocket",
  "page": ["about:newtab" | "about:home" | "about:welcome" | "unknown"]
  "tiles": [{"id": 10000}, {"id": 10001}, {"id": 10002}]
  "user_prefs": 7,
  "window_inner_width": 1000,
  "window_inner_height" 900
}

{
  "impression_id": "{005deed0-e3e4-4c02-a041-17405fd703f6}",
  "addon_version": "20180710100040",
  "locale": "en-US",
  "source": "pocket",
  "page": "unknown",
  "user_prefs": 7,
  "window_inner_width": 1000,
  "window_inner_height" 900,

  // "pos" is the 0-based index to record the tile's position in the Pocket section.
  // "shim" is a base64 encoded shim attached to spocs, unique to the impression from the Ad server.
  "tiles": [{"id": 10000, "pos": 0, "shim": "enuYa1j73z3RzxgTexHNxYPC/b,9JT6w5KB0CRKYEU+"}],

  // A 0-based index to record which tile in the "tiles" list that the user just interacted with.
  "click|block|pocket": 0
}

Example Activity Stream `Router` Pings¶

{
  "client_id": "n/a",
  "action": ["snippets_user_event" | "onboarding_user_event"],
  "impression_id": "{005deed0-e3e4-4c02-a041-17405fd703f6}",
  "source": "pocket",
  "addon_version": "20180710100040",
  "locale": "en-US",
  "source": "NEWTAB_FOOTER_BAR",
  "message_id": "some_snippet_id",
  "event": "IMPRESSION",
  "event_context": "{\"view\":\"application_menu\"}"
}

KEY	DESCRIPTION
`action_position`	[Optional] The index of the element in the `source` that was clicked.	one:
`action`	[Required] Either `activity_stream_event` or `activity_stream_session`.	one:
`addon_version`	[Required] Firefox build ID, i.e. `Services.appinfo.appBuildID`.	one:
`advertiser`	[Optional] An identifier for the advertiser used by the sponsored TopSites telemetry pings.	one:
`client_id`	[Required] An identifier for this client.	one:
`card_type`	[Optional] (“bookmark”, “pocket”, “trending”, “pinned”, “search”, “spoc”, “organic”)	one:
`context_id`	[Optional] An identifier used by the sponsored TopSites telemetry pings.	one:
`search_vendor`	[Optional] the vendor of the search shortcut, one of (“google”, “amazon”, “wikipedia”, “duckduckgo”, “bing”, etc.). This field only exists when `card_type = "search"`	one:
`date`	[Auto populated by Onyx] The date in YYYY-MM-DD format.	three:
`shield_id`	[Optional] DEPRECATED: use experiments instead. The unique identifier for a specific experiment.	one:
`event`	[Required] The type of event. Any user defined string (“click”, “share”, “delete”, “more_items”)	one:
`event_context`	[Optional] A string to record the context of an AS Router event ping. Compound context values will be stringified by JSON.stringify	one:
`highlight_type`	[Optional] Either [“bookmarks”, “recommendation”, “history”].	one:
`impression_id`	[Optional] The unique impression identifier for a specific client.	one:
`ip`	[Auto populated by Onyx] The IP address of the client.	two:
`locale`	[Auto populated by Onyx] The browser chrome’s language (eg. en-US).	two:
`load_trigger_ts`	[Optional][Server Counter][Server Alert for too many omissions] DOMHighResTimeStamp of the action perceived by the user to trigger the load of this page.	one:
`load_trigger_type`	[Server Counter][Server Alert for too many omissions] Either [“first_window_opened”, “menu_plus_or_keyboard”, “unexpected”].	one:
`metadata_source`	[Optional] The source of which we computed metadata. Either (`MetadataService` or `Local` or `TippyTopProvider`).	one:
`page`	[Required] One of [”about:newtab”, “about:home”, “about:welcome”, “unknown” (which either means not-applicable or is a bug)].	one:
`position`	[Optional] An integer indicating the placement (1-based) of the sponsored TopSites tile.	one:
`recommender_type`	[Optional] The type of recommendation that is being shown, if any.	one:
`reporting_url`	[Optional] A URL used by Mozilla services for impression and click reporting for the sponsored TopSites.	one:
`session_duration`	[Optional][Server Counter][Server Alert for too many omissions] Time in (integer) milliseconds of the difference between the new tab becoming visible and losing focus	one:
`session_id`	[Optional] The unique identifier for a specific session.	one:
`source` (AS)	[Required] Either (“recent_links”, “recent_bookmarks”, “frecent_links”, “top_sites”, “spotlight”, “sidebar”) and indicates what `action`.	two:
`source` (CS)	[Optional] Either “newtab” or “urlbar” indicating the location of the TopSites pings for Contextual Services.	one:
`received_at`	[Auto populated by Onyx] The time in ms since epoch.	three:
`tile_id`	[Optional] An integer identifier for a sponsored TopSites tile.	one:
`total_bookmarks`	[Optional] The total number of bookmarks in the user’s places db.	one:
`total_history_size`	[Optional] The number of history items currently in the user’s places db.	one:
`ua`	[Auto populated by Onyx] The user agent string.	two:
`unload_reason`	[Required] The reason the Activity Stream page lost focus.	one:
`url`	[Optional] The URL of the recommendation shown in one of the highlights spots, if any.	one:
`value` (event)	[Optional] An object with keys “icon_type”, “card_type” and “pocket_logged_in_status” to record the extra information for event ping	one:
`ver`	[Auto populated by Onyx] The version of the Onyx API the ping was sent to.	one:
`highlights_size`	[Optional] The size of the Highlights set.	one:
highlights_data_late_by_ms	[Optional] Time in ms it took for Highlights to become initialized	one:
topsites_data_late_by_ms	[Optional] Time in ms it took for TopSites to become initialized	one:
topsites_first_painted_ts	[Optional][Service Counter][Server Alert for too many omissions] Timestamp of when the Top Sites element finished painting (possibly with only placeholder screenshots)	one:
`custom_screenshot`	[Optional] Number of topsites that display a custom screenshot.	one:
`screenshot_with_icon`	[Optional] Number of topsites that display a screenshot and a favicon.	one:
`screenshot`	[Optional] Number of topsites that display only a screenshot.	one:
`tippytop`	[Optional] Number of topsites that display a tippytop icon.	one:
`rich_icon`	[Optional] Number of topsites that display a high quality favicon.	one:
`no_image`	[Optional] Number of topsites that have no screenshot.	one:
`topsites_pinned`	[Optional] Number of topsites that are pinned.	one:
topsites_search_shortcuts	[Optional] Number of search shortcut topsites.	one:
visibility_event_rcvd_ts	[Optional][Server Counter][Server Alert for too many omissions] DOMHighResTimeStamp of when the page itself receives an event that document.visibilityState == visible.	one:
`tiles`	[Required] A list of tile objects for the Pocket articles. Each tile object mush have a ID, optionally a “pos” property to indicate the tile position, and optionally a “shim” property unique to the impression from the Ad server	one:
`click`	[Optional] An integer to record the 0-based index when user clicks on a Pocket tile.	one:
`block`	[Optional] An integer to record the 0-based index when user blocks a Pocket tile.	one:
`pocket`	[Optional] An integer to record the 0-based index when user saves a Pocket tile to Pocket.	one:
`window_inner_width`	[Optional] Amount of vertical space in pixels available to the window.	one:
`window_inner_height`	[Optional] Amount of horizontal space in pixels available to the window.	one:
`user_prefs`	[Required] The encoded integer of user’s preferences.	one: & :four:
`is_preloaded`	[Required] A boolean to signify whether the page is preloaded or not	one:
`icon_type`	[Optional] (“tippytop”, “rich_icon”, “screenshot_with_icon”, “screenshot”, “no_image”, “custom_screenshot”)	one:
`region`	[Optional] A string maps to pref “browser.search.region”, which is essentially the two letter ISO 3166-1 country code populated by the Firefox search service. Note that: 1). it reports “OTHER” for those regions with smaller Firefox user base (less than 10000) so that users cannot be uniquely identified; 2). it reports “UNSET” if this pref is missing; 3). it reports “EMPTY” if the value of this pref is an empty string.	one:
`profile_creation_date`	[Optional] An integer to record the age of the Firefox profile as the total number of days since the UNIX epoch.	one:
`message_id`	[required] A string identifier of the message in Activity Stream Router.	one:
`has_flow_params`	[required] One of [true, false]. A boolean identifier that indicates if Firefox Accounts flow parameters are set or unset.	one:
`displayed`	[required] 1: a SPOC is displayed; 0: non-displayed	one:
`reason`	[required] The reason if a SPOC is not displayed, “n/a” for the displayed, one of (“frequency_cap”, “blocked_by_user”, “flight_duplicate”, “probability_selection”, “below_min_score”, “out_of_position”, “n/a”)	one:
`full_recalc`	[required] Is it a full SPOCS recalculation: 0: false; 1: true. Recalculation case: 1). fetch SPOCS from Pocket endpoint. Non-recalculation cases: 1). An impression updates the SPOCS; 2). Any action that triggers the `selectLayoutRender`	one:
`experiments`	[Optional] An object to record all active experiments (an empty object will be sent if there is no active experiment). The experiments IDs are stored as keys, and the value object stores the branch information. Example: {“experiment_1”: {“branch”: “control”}, “experiment_2”: {“branch”: “treatment”}}. This deprecates the shield_id used in Activity Stream and Messaging System.	one:
`browser_session_id`	[Optional] The unique identifier for a browser session, retrieved from TelemetrySession	one:
`attribution.source`	[Optional] Referring partner domain, when install happens via a known partner	one:
`attribution.medium`	[Optional] Category of the source, such as ‘organic’ for a search engine	one:
`attribution.campaign`	[Optional] Identifier of the particular campaign that led to the download of the product	one:
`attribution.content`	[Optional] Identifier to indicate the particular link within a campaign	one:
`attribution.experiment`	[Optional] Funnel experiment identifier, see bug 1567339	one:
`attribution.variantion`	[Optional] Funnel experiment variant identifier, see bug 1567339	one:
`attribution.ua`	[Optional] Derived user agent, see bug 1595063	one:

Where:

:one: Firefox data
:two: HTTP protocol data
:three: server augmented data
:four: User preferences encoding table

Note: the following session-related fields are not yet implemented in the system-addon, but will likely be added in future versions:

{
  "total_bookmarks": 19,
  "total_history_size": 9,
  "highlights_size": 20
}

Encoding and decoding of `user_prefs`¶

This encoding mapping was defined in system-addon/lib/TelemetryFeed.jsm

Preference	Encoded value (binary)
showSearch	1 (00000001)
showTopSites	2 (00000010)
showTopStories	4 (00000100)
showHighlights	8 (00001000)
showSnippets	16 (00010000)
showSponsored	32 (00100000)
showCFRAddons	64 (01000000)
showCFRFeatures	128 (10000000)
showSponsoredTopSites \| 256 (100000000)

Each item above could be combined with other items through bitwise OR (|) operation.

Examples:

Everything is on, user_prefs = 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 = 511
Everything is off, user_prefs = 0
Only show search and Top Stories, user_prefs = 1 | 4 = 5
Everything except Highlights, user_prefs = 1 | 2 | 4 | 16 | 32 | 64 | 128 | 256 = 503

Likewise, one can use bitwise AND (&) for decoding.

Check if everything is shown, user_prefs & (1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256) or user_prefs == 511
Check if everything is off, user_prefs == 0
Check if search is shown, user_prefs & 1
Check if both Top Sites and Top Stories are shown, (user_prefs & 2) && (user_prefs & 4), or (user_prefs & (2 | 4)) == (2 | 4)

Activity Stream Pings¶

Example Activity Stream health log¶

Example Activity Stream session Log¶

Example Activity Stream user_event Log¶

Example Activity Stream impression_stats Logs¶

Example Activity Stream Router Pings¶

Encoding and decoding of user_prefs¶