121 lines
3.2 KiB
Go
121 lines
3.2 KiB
Go
package rabbitmq
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import (
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"fmt"
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"github.com/hashicorp/go-uuid"
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"github.com/hashicorp/vault/logical"
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"github.com/hashicorp/vault/logical/framework"
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"github.com/michaelklishin/rabbit-hole"
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)
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func pathCreds(b *backend) *framework.Path {
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return &framework.Path{
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Pattern: "creds/" + framework.GenericNameRegex("name"),
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Fields: map[string]*framework.FieldSchema{
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"name": &framework.FieldSchema{
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Type: framework.TypeString,
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Description: "Name of the role.",
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},
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},
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Callbacks: map[logical.Operation]framework.OperationFunc{
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logical.ReadOperation: b.pathCredsRead,
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},
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HelpSynopsis: pathRoleCreateReadHelpSyn,
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HelpDescription: pathRoleCreateReadHelpDesc,
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}
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}
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// Issues the credential based on the role name
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func (b *backend) pathCredsRead(req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
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name := d.Get("name").(string)
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if name == "" {
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return logical.ErrorResponse("missing name"), nil
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}
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// Get the role
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role, err := b.Role(req.Storage, name)
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if err != nil {
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return nil, err
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}
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if role == nil {
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return logical.ErrorResponse(fmt.Sprintf("unknown role: %s", name)), nil
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}
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// Ensure username is unique
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uuidVal, err := uuid.GenerateUUID()
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if err != nil {
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return nil, err
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}
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username := fmt.Sprintf("%s-%s", req.DisplayName, uuidVal)
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password, err := uuid.GenerateUUID()
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if err != nil {
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return nil, err
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}
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// Get the client configuration
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client, err := b.Client(req.Storage)
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if err != nil {
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return nil, err
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}
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if client == nil {
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return logical.ErrorResponse("failed to get the client"), nil
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}
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// Register the generated credentials in the backend, with the RabbitMQ server
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if _, err = client.PutUser(username, rabbithole.UserSettings{
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Password: password,
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Tags: role.Tags,
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}); err != nil {
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return nil, fmt.Errorf("failed to create a new user with the generated credentials")
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}
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// If the role had vhost permissions specified, assign those permissions
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// to the created username for respective vhosts.
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for vhost, permission := range role.VHosts {
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if _, err := client.UpdatePermissionsIn(vhost, username, rabbithole.Permissions{
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Configure: permission.Configure,
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Write: permission.Write,
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Read: permission.Read,
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}); err != nil {
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// Delete the user because it's in an unknown state
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if _, rmErr := client.DeleteUser(username); rmErr != nil {
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return nil, fmt.Errorf("failed to delete user:%s, err: %s. %s", username, err, rmErr)
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}
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return nil, fmt.Errorf("failed to update permissions to the %s user. err:%s", username, err)
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}
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}
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// Return the secret
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resp := b.Secret(SecretCredsType).Response(map[string]interface{}{
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"username": username,
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"password": password,
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}, map[string]interface{}{
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"username": username,
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})
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// Determine if we have a lease
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lease, err := b.Lease(req.Storage)
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if err != nil {
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return nil, err
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}
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if lease != nil {
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resp.Secret.TTL = lease.TTL
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}
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return resp, nil
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}
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const pathRoleCreateReadHelpSyn = `
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Request RabbitMQ credentials for a certain role.
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`
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const pathRoleCreateReadHelpDesc = `
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This path reads RabbitMQ credentials for a certain role. The
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RabbitMQ credentials will be generated on demand and will be automatically
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revoked when the lease is up.
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`
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