ssb-profile v7.0.2

ssb-profile

An secret-stack plugin for creating, reading, updating profiles in scuttlebutt

Example Usage

 const Stack = require('secret-stack')
 const caps = require('ssb-caps')
 const Config = require('ssb-config/inject')
 
 const config = Config({})
 
 const ssb = Stack({ caps })
   .use(require('ssb-db'))
+  .use(require('ssb-backlinks')) // required
+  .use(require('ssb-query')) //     required
+  .use(require('ssb-profile'))
   .use(require('ssb-tribes')) //    (optonal) support for private messages
   .call(null, config)
 
 const details = {
   preferredName: 'Ben',
   avatarImage: {
     blob: '&CLbw5B9d5+H59oxDNOy4bOkwIaOhfLfqOLm1MGKyTLI=.sha256',
     mimeType: 'image/png'
   }
 }

 ssb.profile.person.public.create(details, (err, profileId) => {
   // ...
 })

// later:
ssb.profile.person.public.get(profileId, (err, profile) => {
  // ...
})

// or:
const update = {
  preferredName: 'Ben Tairea',
}

ssb.profile.person.public.update(profileId, update, (err, updateMsg) => {
  // ...
})

Requirements

secret-stack instance running the following plugins:

• ssb-db2/core
• ssb-classic
• ssb-db2/compat
• ssb-db2/compat/publish
• ssb-db2/compat/feedstate
• ssb-box2
• ssb-tribes

API

NOTE - all update methods currently auto-resolve any branch conflicts for you (if they exist) The "winner" for conflicting fields is chosen from the tip that was most recently updated.

Profiles for people:

• ssb.profile.person.source.*
  • has every field
  • recps must be [group]
• ssb.profile.person.group.*
  • excludes: [phone, address, email]
  • recps must be [group]
• ssb.profile.person.admin.*
  • same as source, but admins can post updates to it too.
  • recps must be [poBoxId, feedId] (for someone sending something to admins who wants to be part of updates) OR [groupId] (for something that is one-way to admins/ admin-only)
• ssb.profile.person.public.*
  • only: [preferredName, avatarImage]
  • no recps

graph TB
  subgraph Personal group
    source
  end
  
public(public)
  
  subgraph Family group
    group(group)
    subgraph kaitiaki group
      admin(admin)
    end
    
  end
  
source-..->public
source-..->group
source-..->admin

This graph show how Āhau uses these profiles. Dotted lines show how updates to the source profile are propogate to the others.

Profiles for communities

• ssb.profile.community.public.* - public community profile
• ssb.profile.community.group.* - encrypted community profile

Profiles for pataka

• `ssb.profile.pataka.public*- public pataka profile

Person profile (PUBLIC)

Handles public facing (unencrypted) profiles of type profile/person.

ssb.profile.person.public

• .create(details, cb)
• .get(profileId, cb)
• .update(profileId, details, cb)
• .tombstone(profileId, details, cb)

Here details is an Object which allows:

{
  authors: {
    add: [Author]    // required on .create
    remove: [Author]
  },

  preferredName: String,
  gender: Gender,
  source: ProfileSource,
  avatarImage: Image,

  tombstone: Tombstone

  // allowPublic: Booelan // if using ssb-recps-guard
}

NOTES:

• authors is a special field which defines permissions for updates
  • you must set authors.add when creating a record
• This type is deliberatly quite limited, to avoid accidental sharing of private data.
• All fields (apart from authors) can also be set to null
• See below for types.

Person group profile

Handles encrypted profiles of type profile/person.

ssb.profile.person.group

• .create(details, cb)
• .get(profileId, cb)
• .update(profileId, details, cb)
• .tombstone(profileId, details, cb)
• .findAdminProfileLinks(groupProfileId, opts, cb) (see below)

Here details is an Object:

{
  recps: [Recp],     // required
  authors: {
    add: [Author]    // required on .create
    remove: [Author]
  },

  preferredName: String,
  legalName: String,
  altNames: {
    add: [String],
    remove: [String]
  },

  avatarImage: Image,
  headerImage: Image,

  description: String, 
  gender: Gender,
  source: ProfileSource,

  aliveInterval: EdtfIntervalString,
  deceased: Boolean,
  placeOfBirth: String,
  placeOfDeath: String,
  buriedLocation: String,
  birthOrder: Int,

  profession: String,
  education: [String], // overwrites last Array of Strings
  school: [String],    // overwrites last Array of Strings

  address: String, 
  city: String,
  country: String,
  postCode: String,
  phone: String,
  email: String,
  
  customFields: [CustomField]

  tombstone: Tombstone
}

NOTES:

• authors is a special field which defines permissions for updates
  • you must set authors.add when creating a record
• recps is required when creating, but updates copy the initial recps
• All fields (apart from authors, altNames) can also be set to null
• CustomField { key: value } - A custom field is a field on a persons profile which can have a value of multiple types. The person profile will use what is defined on the community profiles to provide its own value for that field
  • key UnixTime
  • value String | String | Boolean | EdtfDate | Number | Blob | Blob
• See below for Types

Community profile (PUBLIC)

Handles public facing (unencrypted) profiles of type profile/community.

ssb.profile.community.public

• .create(details, cb)
• .get(profileId, cb)
• .update(profileId, details, cb)
• .tombstone(profileId, details, cb)

Here details is an Object which allows:

{
  authors: {
    add: [Author]    // required on .create
    remove: [Author],
  },

  preferredName: String,
  description: String,

  avatarImage: Image,
  headerImage: Image,

  address: String,
  city: String,
  country: String,
  postCode: String,
  phone: String,
  email: String,

  // these two fields are only on public community profiles
  joiningQuestions: CustomForm, 
  customFields: CustomFields

  tombstone: Tombstone,

  poBoxId: POBoxId // public part of the poBoxId for a subgroup


  // allowPublic: Boolean       // if using ssb-recps-guard
}

NOTES:

• authors is a special field which defines permissions for updates
  • you must set authors.add when creating a record
• All fields (apart from authors) can also be set to null
• POBoxId is a String cipherlink that can be used in recps by anyone, to send messages only those with the secret key can open
• customFields are defined on the public community profile and then you use those definitions for what you fill in on the person profile
• See below for Types

Community profile (GROUP)

Handles encrypted profiles of type profile/community and is for use within a group.

ssb.profile.community.group

• .create(details, cb)
• .get(profileId, cb)
• .update(profileId, details, cb)
• .tombstone(profileId, details, cb)

Here details is an Object of form:

{
  recps: [Recp],     // required
  authors: {
    add: [Author]    // required on .create
    remove: [Author],
  },

  preferredName: String,
  description: String,

  avatarImage: Image,
  headerImage: Image,

  address: String,
  city: String,
  country: String,
  postCode: String,
  phone: String,
  email: String,

  // private settings
  // only on the group community profile
  allowWhakapapaViews: Boolean,
  allowPersonsList: Boolean,
  allowStories: Boolean,

  // public settings
  // only on the public community profile
  acceptsVerifiedCredentials: Boolean,
  issuesVerifiedCredentials: Boolean,

  tombstone: Tombstone,

  poBoxId: POBoxId
}

NOTES:

• recps is required when creating, but updates copy the initial recps
• authors is a special field which defines permissions for updates
  • you must set authors.add when creating a record
• All fields (apart from authors) can also be set to null
• POBoxId is a String cipherlink that can be used in recps by anyone, to send messages only those with the secret key can open
• See below for Types

How get methods work

Because there might be multiple offline edits to a profile which didn't know bout one-another, it's possible for divergence to happen:

   A   (the root message)
   |
   B   (an edit after A)
  / \
 C   D (two concurrent edits after B)

profile is an Object which maps the key of a each latest edit to the state it perceives the profile to be in! So for that prior example:

// profile
{
  key: MessageId,          // the root message of the profile tangle, aka profileId
  type: ProfileType,
  recps: [Recp],           // recipients (will be null on public records)
  originalAuthor: FeedId
  ...state,                // the best guess of the current state of each field
  states: [                // (advanced) in depth detail about the state of all tips
    { key: C, ...state },  //
    { key: D, ...state },
  ],
  conflictFields: [String] // a list of any fields which are in conflict
}

where

• recps is the private recipients who can access the profile

• states State - the one / multiple states in which the profile is in:

  • these are sorted from most to least recent edit (by asserted publishedDate on the last update message)
  • key MessageId is the key of the message which is the most recent edit
  • state is an object which shows what the state of the profile is (from the perspective of a person standing at that particular "head")

  • e.g. for some Public Person profile, it might look like:

    // State
    {
      type: 'person'                      // added to help you out
    
      authors: {
        '@xIP5FV16FwPUiIZ0TmINhoCo4Hdx6c4KQcznEDeWtWg=.ed25519': [
          { start: 203, end: Integer }
        ]
      },
      preferredName: 'Ben Tairea',
      gender: 'male', 
      source: 'ahau',                          
      tombstone: null                     // all profile fields are present, are "null" if unset
    }

Fields which get reduced:

• authors returns a collection of authors, and "intervals" for which that author was active
  • these are sequence numbers from the authors feed (unless the author is "*" in which case it's a time-stamp)
• altNames returns an Array of names (ordered is not guarenteed)

ssb.profile.link.create(profileId, opts, cb)

where

• profileId MessageId is the profile you're creating a link to
• opts Object (optional) allows you to tune the link:
  • opts.feedId FeedId if provided creates a link/feed-profile with provided feedId instead of current ssb instance's feedId
  • opts.groupId GroupId creates a link/group-profile
  • opts.profileId MsgId creates a link/profile-profile/admin (set profileId to be the group profile, opts.profileId to be the admin profile)
  • opts.allowPublic Boolean (optional) - if you have ssb-recps-guard installed and want to bypass it for a public (unencrypted) link
• cb Function - callback with signature (err, link) where link is the link message

Note:

• if you link to a private profile, the link will be encrypted to the same recps as that profile
• if you provide opts.feedId and opts.groupId you will get an error

Find methods

ssb.profile.find(opts, cb)

Arguments:

• opts Object - an options object with properties:
  • opts.name String - a name (or fragment of) that could be part of a preferredName or legalName or altNames
  • opts.type String (optional)
    • if set, method will only return profiles of given type
    • Valid types:
      • 'person' 'person/admin' 'person/source' 'community' 'pataka'
      • null - if set to null, will return all types
    • default: 'person'
  • opts.groupId String (optional)
    • only returns results encrypted to a particular group
    • if it's a GroupId, and that group has a poBoxId, profiles encrypted to both are included
    • id it's a POBoxId, then just profiles encrypted to that P.O. Box will be included
  • opts.includeTombstoned Boolean (optional) - whether to include profiles which habe been tombstoned (default: false)
• cb Function - a callback with signature (err, suggestions) where suggestions is an array of Profiles

ssb.profile.findByFeedId(feedId, cb)

Takes a feedId and calls back with all profiles which that feedId has linked to it. Signature of cb is cb(err, profiles) where profiles is of form:

{
  public: [Profile],
  private: [Profile]
}

NOTE:

• profiles which have been tombstoned are not included in results
• profiles are ordered from oldest to newest in terms of when they were linked to the feedId
• advanced : ssb.profile.findByFeedId(feedId, opts, cb)
  • opts.getProfile - provide your own getter. signature getProfile(profileId, cb)
    • callback with cb(null, null) if you want to exclude a result
    • useful if you want to add a cache to your getter, or only allow certain types of profile
  • opts.groupId GroupId - only return profiles that exist in a particular private group
  • opts.sortPublicPrivate Boolean - whether to sort into { public, private }
    • default: true
    • if false returns an Array of profiles
  • opts.selfLinkOnly Boolean - only include profiles where the link message was authored by the feedId
    • default: true
    • if false, public and private groupings are further split into self and other:

      {
        self: { public: [Profile], private: [Profile] },
        other: { public: [Profile], private: [Profile] }
      }

    • if false you get profiles that anyone has linked to that feedId,
      • WARNING links asserted by others could be malicious
      • if you trust your context this can be a useful fallback

ssb.profile.findByGroupId(groupId, cb)

Takes a groupId and calls back with all profiles which that feedId has linked to it. Signature of cb is cb(err, profiles) where profiles is of form:

{
  public: [Profile],
  private: [Profile]
}

NOTE:

• profiles which have been tombstoned are not included in results
• profiles are ordered from oldest to newest in terms of when they were linked to the feedId
• advanced you can call this with ssb.profile.findByGroupId(feedId, opts, cb)
  • opts.getProfile - provide your own getter. signature getProfile(profileId, cb)
    • callback with cb(null, null) if you want to exclude a result
    • useful if you want to add a cache to your getter, or only allow certain types of profile

ssb.profile.findFeedsByProfileId(profileId, cb)

Takes a profileId and calls back with all the feedIds which that profileId has linked to it. Signature of cb is cb(err, feeds) where feeds is of form:

[FeedId, FeedId, ...]

NOTE:

• advanced : ssb.profile.findFeedsByProfile(profileId, opts, cb)
  • opts.selfLinkOnly Boolean - only include profiles where the link message was authored by the feedId
    • default: true
    • if false returns results in format:

      {
        self: [FeedId, ...],  // feeds that have link themselves to the profile
        other: [FeedId, ...]  // feeds that another person has linked to the profile
      }

• alias ssb.profile.findFeedsByProfile

ssb.profile.person.group.findAdminProfileLinks(profileId, opts, cb)

Takes a profileId (person group profileId) and calls back with the parentLinks and childLinks which that profileId has linked to it. Signature of cb is cb(err, links) where links is of form:

{
  parentLinks: [Link],
  childLinks: [Link]
}

and Link is:

{
  key: MsgId,
  type: 'link/profile-profile/admin',
  parent: MsgId,
  child: MsgId,
  states: [{ key: MsgId, tombstone: Tombstone }]
  originalAuthor: FeedId,
  recps: [GroupId]
}

Types

• Author String a FeedId or "*" (i.e. any user)
  • any updates that arent from a valid author are classed as invalid and will be ignored when using the get method
• Recp String a "recipient", usually a FeedId or GroupId
  • the record will be encrypted so only that recipient(s) can access the record
  • requires ssb-tribes to be installed as a plugin

• Image Object:

  {
    blob: Blob,        // the content address for the blob (with prefex &)
    mimeType: String,  // mimetype of the image
    unbox: UnboxKey,   // (optional) a String for unboxing the blob if encrypted
    size: Number,      // (optional) size of the image in bytes
    width: Number,     // (optional) width of image in pixels
    height: Number     // (optional) height of image in pixels
  }

• Gender String (male|female|other|unknown)

• ProfileSource String (ahau|webForm). A ProfileSource is an enum explaining where this profile came from e.g. ahau - it was created in ahau. webForm - it was created using a webForm
• EdtfIntervalString - see edtf module and library of congress spec

• Tombstone Object

  {
    date: UnixTime,  // an Integer indicating microseconds from 1st Jan 1970, can be negative!
    reason: String   // (optional)
  }

• UnixTime Integer microseconds since 00:00 1st Jan 1970 (can be negative, read more)

• CustomForm FormField - used generate custom form for people applying to join a community. e.g

  [
    { type: 'input', label: 'Who introduced you?' },
    { type: 'textarea', label: 'Please tell use about yourself' },
  ]

  • FormField Object of shape:

    {
      type: FieldType, // String: input|textarea
      label: String
    }

• CustomFields { key: CustomFieldDef } - defines the custom fields that person profiles within the group will use

  • key UnixTime (see example above)

  • CustomFieldDef Object of shape

    {
      type: String, // text|array|list|checkbox|file
      label: String,
      order: Number,
      required: Boolean,
      visibleBy: String, // members|admin
    
      // NOTE: these fields are used when type=list
      options: [String],
      multiple: Boolean
    
      // NOTE: these fields are used when type=file
      fileTypes: [String] // document|video|audio|photo
      description: String, // a helpful descriptions may be needed when uploading files
      multiple: Boolean
    }

    • Valid types
      • text string value
      • array multiple response value
      • list value containing one or more values from the defined options
      • checkbox boolean value
      • file blob values to store files

• Blob Object - the blob object for the uploaded media, see ssb-blobs and ssb-hyper-blobs

Record types

graph TB

%% ssb.profile

%% cipherlinks
feedId(feedId)
groupId(groupId)

%% public profiles
personPublic[profile/person]
communityPublic[profile/community]

%% public links
linkPersonPublic([link/feed-profile])
linkCommunityPublic([link/group-profile])

%% pataka[profile/pataka]

subgraph group
  communityGroup[profile/community]
  personGroup[profile/person<br/>]
 
  %% links encrypted to the group
  linkPersonGroup([link/feed-profile])
  linkCommunityGroup([link/group-profile])
  linkPersonPersonAdmin([link/profile-profile/admin])
 
  subgraph admin
    personAdmin[profile/person/admin]
 
    %% links encrypted to the admins
    linkPersonAdmin([link/feed-profile])
  end
end

%% connecting links
feedId -..-> linkPersonPublic -..-> personPublic
feedId -.-> linkPersonGroup -.-> personGroup
feedId -.-> linkPersonAdmin -.-> personAdmin

personAdmin -.-> linkPersonPersonAdmin -.-> personGroup

groupId -..-> linkCommunityPublic -..-> communityPublic
groupId -..-> linkCommunityGroup -..-> communityGroup

%% styling
classDef default fill:#990098, stroke:purple, stroke-width:1, color:white, font-family:sans, font-size:14px;

classDef cluster fill:#1fdbde55, stroke:#1fdbde;
classDef path stroke: blue;

classDef encrypted fill:#ffffffaa, stroke:purple, stroke-width:1, color:black, font-family:sans, font-size:14px;
classDef cipherlink fill:#0000ff33, stroke:purple, stroke-width:0, color:#00f, font-family:sans, font-size: 14px;

class personGroup,personAdmin,communityGroup,linkPersonGroup,linkPersonAdmin,linkCommunityGroup,linkPersonPersonAdmin encrypted;
class feedId,groupId cipherlink

Note - you only have link/profile-profile/admin for "unowned" profile (i.e. no link/feed-profile is present)

FAQ

I want to delete my legalName, how do?

• first, know that if you previously published a legalName it will always be part of your record (even if it's not currently displayed)
• if you want to clear a text field, just publish an update with null value: { legalName: null }

How do I clear an image?

• same as with legalName - set it to null

Multiple editors for a profile?

• work in progress!
• currently supports multiple writers, but does not support merging of branched state
  • by default, .update extends the most recent branch

Development

Project layout (made with tree):

.
├── index.js           // ssb-server plugin (collects all methods)
├── method             // user facing methods
├── spec               // describes message + how to reduce them
│   ├── person
│   │   ├── source
│   │   ├── group
│   │   ├── admin
│   │   └── private
│   ├── community
│   │   ├── group
│   │   └── public
│   ├── pataka
│   │   
│   ├── link
│   │   ├── feed-profile
│   │   ├── group-profile
│   │   └── profile-profile-admin
│   └── lib
│
└── test               // tests!

run npm test to run tests