UpdateUser - Amazon Transfer Family
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UpdateUser

Assigns new properties to a user. Parameters you pass modify any or all of the following: the home directory, role, and policy for the UserName and ServerId you specify.

The response returns the ServerId and the UserName for the updated user.

Request Syntax

{ "HomeDirectory": "string", "HomeDirectoryMappings": [ { "Entry": "string", "Target": "string" } ], "HomeDirectoryType": "string", "Policy": "string", "PosixProfile": { "Gid": number, "SecondaryGids": [ number ], "Uid": number }, "Role": "string", "ServerId": "string", "UserName": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

HomeDirectory

The landing directory (folder) for a user when they log in to the server using the client.

A HomeDirectory example is /bucket_name/home/mydirectory.

Type: String

Length Constraints: Maximum length of 1024.

Pattern: ^$|/.*

Required: No

HomeDirectoryMappings

Logical directory mappings that specify what Amazon S3 or Amazon EFS paths and keys should be visible to your user and how you want to make them visible. You must specify the Entry and Target pair, where Entry shows how the path is made visible and Target is the actual Amazon S3 or Amazon EFS path. If you only specify a target, it is displayed as is. You also must ensure that your Amazon Identity and Access Management (IAM) role provides access to paths in Target. This value can be set only when HomeDirectoryType is set to LOGICAL.

The following is an Entry and Target pair example.

[ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ]

In most cases, you can use this value instead of the session policy to lock down your user to the designated home directory ("chroot"). To do this, you can set Entry to '/' and set Target to the HomeDirectory parameter value.

The following is an Entry and Target pair example for chroot.

[ { "Entry": "/", "Target": "/bucket_name/home/mydirectory" } ]

Type: Array of HomeDirectoryMapEntry objects

Array Members: Minimum number of 1 item. Maximum number of 50 items.

Required: No

HomeDirectoryType

The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to PATH, the user will see the absolute Amazon S3 bucket or EFS paths as is in their file transfer protocol clients. If you set it LOGICAL, you need to provide mappings in the HomeDirectoryMappings for how you want to make Amazon S3 or Amazon EFS paths visible to your users.

Type: String

Valid Values: PATH | LOGICAL

Required: No

Policy

A session policy for your user so that you can use the same Amazon Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include ${Transfer:UserName}, ${Transfer:HomeDirectory}, and ${Transfer:HomeBucket}.

Note

This policy applies only when the domain of ServerId is Amazon S3. Amazon EFS does not use session policies.

For session policies, Amazon Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the Policy argument.

For an example of a session policy, see Example session policy.

For more information, see AssumeRole in the Amazon Security Token Service API Reference.

Type: String

Length Constraints: Maximum length of 2048.

Required: No

PosixProfile

Specifies the full POSIX identity, including user ID (Uid), group ID (Gid), and any secondary groups IDs (SecondaryGids), that controls your users' access to your Amazon Elastic File Systems (Amazon EFS). The POSIX permissions that are set on files and directories in your file system determines the level of access your users get when transferring files into and out of your Amazon EFS file systems.

Type: PosixProfile object

Required: No

Role

The Amazon Resource Name (ARN) of the Amazon Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.

Type: String

Length Constraints: Minimum length of 20. Maximum length of 2048.

Pattern: arn:.*role/.*

Required: No

ServerId

A system-assigned unique identifier for a server instance that the user account is assigned to.

Type: String

Length Constraints: Fixed length of 19.

Pattern: ^s-([0-9a-f]{17})$

Required: Yes

UserName

A unique string that identifies a user and is associated with a server as specified by the ServerId. This user name must be a minimum of 3 and a maximum of 100 characters long. The following are valid characters: a-z, A-Z, 0-9, underscore '_', hyphen '-', period '.', and at sign '@'. The user name can't start with a hyphen, period, or at sign.

Type: String

Length Constraints: Minimum length of 3. Maximum length of 100.

Pattern: ^[\w][\w@.-]{2,99}$

Required: Yes

Response Syntax

{ "ServerId": "string", "UserName": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

ServerId

A system-assigned unique identifier for a server instance that the user account is assigned to.

Type: String

Length Constraints: Fixed length of 19.

Pattern: ^s-([0-9a-f]{17})$

UserName

The unique identifier for a user that is assigned to a server instance that was specified in the request.

Type: String

Length Constraints: Minimum length of 3. Maximum length of 100.

Pattern: ^[\w][\w@.-]{2,99}$

Errors

For information about the errors that are common to all actions, see Common Errors.

InternalServiceError

This exception is thrown when an error occurs in the AmazonTransfer Family service.

HTTP Status Code: 500

InvalidRequestException

This exception is thrown when the client submits a malformed request.

HTTP Status Code: 400

ResourceNotFoundException

This exception is thrown when a resource is not found by the AmazonTransfer Family service.

HTTP Status Code: 400

ServiceUnavailableException

The request has failed because the AmazonTransfer Family service is not available.

HTTP Status Code: 500

ThrottlingException

The request was denied due to request throttling.

HTTP Status Code: 400

Examples

Example

The following example updates a user account.

Sample Request

{ "HomeDirectory": "/bucket2/documentation", "HomeDirectoryMappings": [ { "Entry": "/directory1", "Target": "/bucket_name/home/mydirectory" } ], "HomeDirectoryType:" "PATH", "Role": "AssumeRole", "ServerId": "s-01234567890abcdef", "UserName": "my_user" }

Example

This is a sample response for this API call.

Sample Response

{ "ServerId": "s-01234567890abcdef", "UserName": "my_user" }

See Also

For more information about using this API in one of the language-specific Amazon SDKs, see the following: