npm-profile

Provides functions for fetching and updating an npmjs.com profile.

``js
const profile = require('npm-profile')
const result = await profile.get({token})
//...
`

The API that this implements is documented here:

* authentication
* profile editing (and two-factor authentication)

Table of Contents

* API
* Login and Account Creation
* adduser()
* login()
* adduserWeb()
* loginWeb()
* adduserCouch()
* loginCouch()
* Profile Data Management
* get()
* set()
* Token Management
* listTokens()
* removeToken()
* createToken()

API

$3

Tries to create a user new web based login, if that fails it falls back to
using the legacy CouchDB APIs.

* opener Function (url) → Promise, returns a promise that resolves after a browser has been opened for the user at url.
* prompter Function (creds) → Promise, returns a promise that resolves to an object with username, email and password properties.

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be 'E' followed by the HTTP response code, for
example a Forbidden response would be E403.

$3

Tries to login using new web based login, if that fails it falls back to
using the legacy CouchDB APIs.

* opener Function (url) → Promise, returns a promise that resolves after a browser has been opened for the user at url.
* prompter Function (creds) → Promise, returns a promise that resolves to an object with username, and password properties.

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP. This error code can only come from a legacy CouchDB login and so
this should be retried with loginCouch.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be 'E' followed by the HTTP response code, for
example a Forbidden response would be E403.

$3

Tries to create a user new web based login, if that fails it falls back to
using the legacy CouchDB APIs.

* opener Function (url) → Promise, returns a promise that resolves after a browser has been opened for the user at url.
* opts Object

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the registry does not support web-login then an error will be thrown with
its code property set to ENYI . You should retry with adduserCouch.
If you use adduser then this fallback will be done automatically.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be 'E' followed by the HTTP response code, for
example a Forbidden response would be E403.

$3

Tries to login using new web based login, if that fails it falls back to
using the legacy CouchDB APIs.

* opener Function (url) → Promise, returns a promise that resolves after a browser has been opened for the user at url.
* opts Object (optional)

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the registry does not support web-login then an error will be thrown with
its code property set to ENYI . You should retry with loginCouch.
If you use login then this fallback will be done automatically.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be 'E' followed by the HTTP response code, for
example a Forbidden response would be E403.

$3

`js
const {token} = await profile.adduser(username, email, password, {registry})
// token can be passed in through opts for authentication.
`

Creates a new user on the server along with a fresh bearer token for future
authentication as this user. This is what you see as an authToken in an
.npmrc.

If the user already exists then the npm registry will return an error, but
this is registry specific and not guaranteed.

* username String
* email String
* password String
* opts Object (optional)

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be 'E' followed by the HTTP response code, for
example a Forbidden response would be E403.

$3

`js
let token
try {
{token} = await profile.login(username, password, {registry})
} catch (err) {
if (err.code === 'otp') {
const otp = await getOTPFromSomewhere()
{token} = await profile.login(username, password, {otp})
}
}
// token can now be passed in through opts for authentication.
`

Logs you into an existing user. Does not create the user if they do not
already exist. Logging in means generating a new bearer token for use in
future authentication. This is what you use as an authToken in an .npmrc.

* username String
* email String
* password String
* opts Object (optional)

#### Promise Value

An object with the following properties:

* token String, to be used to authenticate further API calls
* username String, the username the user authenticated as

#### Promise Rejection

An error object indicating what went wrong.

If the object has a code property set to EOTP then that indicates that
this account must use two-factor authentication to login. Try again with a
one-time password.

If the object has a code property set to EAUTHIP then that indicates that
this account is only allowed to login from certain networks and this ip is
not on one of those networks.

If the error was neither of these then the error object will have a
code property set to the HTTP response code and a headers property with
the HTTP headers in the response.

$3

`js
const {name, email} = await profile.get({token})
console.log(${token} belongs to https://npm.im/~${name}, (mailto:${email}))
`

Fetch profile information for the authenticated user.

* opts Object

#### Promise Value

An object that looks like this:

`js
// "*" indicates a field that may not always appear
{
tfa: null |
false |
{"mode": "auth-only", pending: Boolean} |
["recovery", "codes"] |
"otpauth://...",
name: String,
email: String,
email_verified: Boolean,
created: Date,
updated: Date,
cidr_whitelist: null | ["192.168.1.1/32", ...],
fullname: String, // *
homepage: String, // *
freenode: String, // *
twitter: String, // *
github: String // *
}
`

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be the HTTP response code.

$3

`js
await profile.set({github: 'great-github-account-name'}, {token})
`

Update profile information for the authenticated user.

* profileData An object, like that returned from profile.get, but see
below for caveats relating to password, tfa and cidr_whitelist.
* opts Object (optional)

#### SETTING password

This is used to change your password and is not visible (for obvious
reasons) through the get() API. The value should be an object with old
and new properties, where the former has the user's current password and
the latter has the desired new password. For example

`js
await profile.set({
password: {
old: 'abc123',
new: 'my new (more secure) password'
}
}, {token})
`

#### SETTING cidr_whitelist

The value for this is an Array. Only valid CIDR ranges are allowed in it.
Be very careful as it's possible to lock yourself out of your account with
this. This is not currently exposed in npm itself.

`js
await profile.set({
cidr_whitelist: [ '8.8.8.8/32' ]
}, {token})
// ↑ only one of google's dns servers can now access this account.
`

#### SETTING tfa

Enabling two-factor authentication is a multi-step process.

1. Call profile.get and check the status of tfa. If pending is true then
you'll need to disable it with profile.set({tfa: {password, mode: 'disable'}, …).
2. profile.set({tfa: {password, mode}}, {registry, token})
* Note that the user's password is required here in the tfa object,
regardless of how you're authenticating.
* mode is either auth-only which requires an otp when calling login
or createToken, or mode is auth-and-writes and an otp will be
required on login, publishing or when granting others access to your
modules.
* Be aware that this set call may require otp as part of the auth object.
If otp is needed it will be indicated through a rejection in the usual
way.
3. If tfa was already enabled then you're just switch modes and a
successful response means that you're done. If the tfa property is empty
and tfa _wasn't_ enabled then it means they were in a pending state.
3. The response will have a tfa property set to an otpauth URL, as
used by Google Authenticator.
You will need to show this to the user for them to add to their
authenticator application. This is typically done as a QRCODE, but you
can also show the value of the secret key in the otpauth query string
and they can type or copy paste that in.
4. To complete setting up two factor auth you need to make a second call to
profile.set with tfa set to an array of TWO codes from the user's
authenticator, eg: profile.set(tfa: [otp1, otp2]}, {registry, token})
5. On success you'll get a result object with a tfa property that has an
array of one-time-use recovery codes. These are used to authenticate
later if the second factor is lost and generally should be printed and
put somewhere safe.

Disabling two-factor authentication is more straightforward, set the tfa
attribute to an object with a password property and a mode of disable.

`js
await profile.set({tfa: {password, mode: 'disable'}}, {token})
`

#### Promise Value

An object reflecting the changes you made, see description for profile.get.

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be the HTTP response code.

$3

`js
const tokens = await profile.listTokens({registry, token})
console.log(Number of tokens in your accounts: ${tokens.length})
`

Fetch a list of all of the authentication tokens the authenticated user has.

* opts Object (optional)

#### Promise Value

An array of token objects. Each token object has the following properties:

* key — A sha512 that can be used to remove this token.
* token — The first six characters of the token UUID. This should be used
by the user to identify which token this is.
* created — The date and time the token was created
* readonly — If true, this token can only be used to download private modules. Critically, it CAN NOT be used to publish.
* cidr_whitelist — An array of CIDR ranges that this token is allowed to be used from.

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be the HTTP response code.

$3

`js
await profile.removeToken(key, {token})
// token is gone!
`

Remove a specific authentication token.

* token|key String, either a complete authentication token or the key returned by profile.listTokens.
* opts Object (optional)

#### Promise Value

No value.

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be the HTTP response code.

$3

`js
const newToken = await profile.createToken(
password, readonly, cidr_whitelist, {token, otp}
)
// do something with the newToken
`

Create a new authentication token, possibly with restrictions.

* password String
* readonly Boolean
* cidr_whitelist Array
* opts Object Optional

#### Promise Value

The promise will resolve with an object very much like the one's returned by
profile.listTokens. The only difference is that token is not truncated.

`js
{
token: String,
key: String, // sha512 hash of the token UUID
cidr_whitelist: [String],
created: Date,
readonly: Boolean
}
`

#### Promise Rejection

An error object indicating what went wrong.

The headers property will contain the HTTP headers of the response.

If the action was denied because an OTP is required then code will be set
to EOTP.

If the action was denied because it came from an IP address that this action
on this account isn't allowed from then the code will be set to EAUTHIP.

Otherwise the code will be the HTTP response code.

$3

The various API functions accept an optional opts object as a final
argument.

Options are passed to
npm-registry-fetch
options, so
anything provided to this module will affect the behavior of that one as
well.

Of particular note are opts.registry, and the auth-related options:

* opts.creds Object, passed through to prompter, common values are:
* username String, default value for username
* email String, default value for email
* opts.username and opts.password - used for Basic auth
* opts.otp String, the two-factor-auth one-time-password (Will prompt for
this if needed and not provided.)
* opts.hostname String, the hostname of the current machine, to show the
user during the WebAuth flow. (Defaults to os.hostname().)

Logging

This modules logs by emitting log events on the global process object
via proc-log.
These events look like this:

`js
procLogloglevel
`

loglevel can be one of: error, warn, notice, http, info, verbose, and silly.

feature is any brief string that describes the component doing the logging.

The remaining arguments are evaluated like console.log and joined together with spaces.

A real world example of this is:

`js
procLog.http('request', '→', conf.method || 'GET', conf.target)
`

To handle the log events, you would do something like this:

`js
process.on('log', (level, feature, ...args) => {
console.log(level, feature, ...args)
})
``