threshold/internal/iam/repository_scope.go

package iam

import (
	"context"
	"crypto/rand"
	"fmt"
	"strings"

	"github.com/hashicorp/boundary/internal/db"
	dbcommon "github.com/hashicorp/boundary/internal/db/common"
	"github.com/hashicorp/boundary/internal/errors"
	"github.com/hashicorp/boundary/internal/kms"
	"github.com/hashicorp/boundary/internal/oplog"
	"github.com/hashicorp/boundary/internal/types/resource"
	"github.com/hashicorp/boundary/internal/types/scope"
	wrapping "github.com/hashicorp/go-kms-wrapping/v2"
)

// CreateScope will create a scope in the repository and return the written
// scope. Supported options include: WithPublicId and WithRandomReader.
func (r *Repository) CreateScope(ctx context.Context, s *Scope, userId string, opt ...Option) (*Scope, error) {
	const op = "iam.(Repository).CreateScope"
	if s == nil {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "missing scope")
	}
	if s.Scope == nil {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "missing scope store")
	}
	if s.PublicId != "" {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "public id not empty")
	}

	var parentOplogWrapper wrapping.Wrapper
	var err error
	switch s.Type {
	case scope.Unknown.String():
		return nil, errors.New(ctx, errors.InvalidParameter, op, "unknown type")
	case scope.Global.String():
		return nil, errors.New(ctx, errors.InvalidParameter, op, "invalid type")
	default:
		switch s.ParentId {
		case "":
			return nil, errors.New(ctx, errors.InvalidParameter, op, "missing parent id")
		case scope.Global.String():
			parentOplogWrapper, err = r.kms.GetWrapper(ctx, scope.Global.String(), kms.KeyPurposeOplog)
		default:
			parentOplogWrapper, err = r.kms.GetWrapper(ctx, s.ParentId, kms.KeyPurposeOplog)
		}
	}
	if err != nil {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "unable to get oplog wrapper")
	}

	opts := getOpts(opt...)

	var scopePublicId string
	var scopeMetadata oplog.Metadata
	var scopeRaw interface{}
	{
		scopeType := scope.Map[s.Type]
		if opts.withPublicId != "" {
			if !strings.HasPrefix(opts.withPublicId, scopeType.Prefix()+"_") {
				return nil, errors.New(ctx, errors.InvalidParameter, op, fmt.Sprintf("passed-in public ID %q has wrong prefix for type %q which uses prefix %q", opts.withPublicId, scopeType.String(), scopeType.Prefix()))
			}
			scopePublicId = opts.withPublicId
		} else {
			scopePublicId, err = newScopeId(scopeType)
			if err != nil {
				return nil, errors.Wrap(ctx, err, op)
			}
		}
		sc := s.Clone().(*Scope)
		sc.PublicId = scopePublicId
		scopeRaw = sc
		scopeMetadata, err = r.stdMetadata(ctx, sc)
		if err != nil {
			return nil, errors.Wrap(ctx, err, op)
		}
		scopeMetadata["op-type"] = []string{oplog.OpType_OP_TYPE_CREATE.String()}
	}

	var adminRolePublicId string
	var adminRoleMetadata oplog.Metadata
	var adminRole *Role
	var adminRoleRaw interface{}
	switch {
	case userId == "",
		userId == "u_anon",
		userId == "u_auth",
		userId == "u_recovery",
		opts.withSkipAdminRoleCreation:
		// TODO: Cause a log entry. The repo doesn't have a logger right now,
		// and ideally we will be using context to pass around log info scoped
		// to this request for grouped display in the server log. The only
		// reason this should ever happen anyways is via the administrative
		// recovery workflow so it's already a special case.

		// Also, stop linter from complaining
		_ = adminRole

	default:
		adminRole, err = NewRole(scopePublicId)
		if err != nil {
			return nil, errors.Wrap(ctx, err, op, errors.WithMsg("error instantiating new admin role"))
		}
		adminRolePublicId, err = newRoleId()
		if err != nil {
			return nil, errors.Wrap(ctx, err, op, errors.WithMsg("error generating public id for new admin role"))
		}
		adminRole.PublicId = adminRolePublicId
		adminRole.Name = "Administration"
		adminRole.Description = fmt.Sprintf("Role created for administration of scope %s by user %s at its creation time", scopePublicId, userId)
		adminRoleRaw = adminRole
		adminRoleMetadata = oplog.Metadata{
			"resource-public-id": []string{adminRolePublicId},
			"scope-id":           []string{scopePublicId},
			"scope-type":         []string{s.Type},
			"resource-type":      []string{resource.Role.String()},
			"op-type":            []string{oplog.OpType_OP_TYPE_CREATE.String()},
		}
	}

	var defaultRolePublicId string
	var defaultRoleMetadata oplog.Metadata
	var defaultRole *Role
	var defaultRoleRaw interface{}
	if !opts.withSkipDefaultRoleCreation {
		defaultRole, err = NewRole(scopePublicId)
		if err != nil {
			return nil, errors.Wrap(ctx, err, op, errors.WithMsg("error instantiating new default role"))
		}
		defaultRolePublicId, err = newRoleId()
		if err != nil {
			return nil, errors.Wrap(ctx, err, op, errors.WithMsg("error generating public id for new default role"))
		}
		defaultRole.PublicId = defaultRolePublicId
		switch s.Type {
		case scope.Project.String():
			defaultRole.Name = "Default Grants"
			defaultRole.Description = fmt.Sprintf("Role created to provide default grants to users of scope %s at its creation time", scopePublicId)
		default:
			defaultRole.Name = "Login and Default Grants"
			defaultRole.Description = fmt.Sprintf("Role created for login capability, account self-management, and other default grants for users of scope %s at its creation time", scopePublicId)
		}
		defaultRoleRaw = defaultRole
		defaultRoleMetadata = oplog.Metadata{
			"resource-public-id": []string{defaultRolePublicId},
			"scope-id":           []string{scopePublicId},
			"scope-type":         []string{s.Type},
			"resource-type":      []string{resource.Role.String()},
			"op-type":            []string{oplog.OpType_OP_TYPE_CREATE.String()},
		}
	}

	reader := opts.withRandomReader
	if reader == nil {
		reader = rand.Reader
	}

	_, err = r.writer.DoTx(
		ctx,
		db.StdRetryCnt,
		db.ExpBackoff{},
		func(dbr db.Reader, w db.Writer) error {
			if err := w.Create(
				ctx,
				scopeRaw,
				db.WithOplog(parentOplogWrapper, scopeMetadata),
			); err != nil {
				return errors.Wrap(ctx, err, op, errors.WithMsg("error creating scope"))
			}

			s := scopeRaw.(*Scope)

			txnKms, err := kms.NewUsingReaderWriter(ctx, dbr, w)
			if err != nil {
				return errors.Wrap(ctx, err, op, errors.WithMsg("error creating transaction's kms"))
			}
			if err := txnKms.AddExternalWrappers(ctx, kms.WithRootWrapper(r.kms.GetExternalWrappers(ctx).Root())); err != nil {
				return errors.Wrap(ctx, err, op, errors.WithMsg("error adding external root wrapper to transaction's kms"))
			}
			if err := txnKms.CreateKeys(ctx, s.PublicId, kms.WithRandomReader(reader), kms.WithReaderWriter(dbr, w)); err != nil {
				return errors.Wrap(ctx, err, op, errors.WithMsg("error creating scope keys"))
			}
			childOplogWrapper, err := txnKms.GetWrapper(ctx, s.PublicId, kms.KeyPurposeOplog)
			if err != nil {
				return errors.New(ctx, errors.InvalidParameter, op, "unable to get oplog wrapper")
			}

			// We create a new role, then set grants and principals on it. This
			// turns into a bunch of stuff sadly because the role is the
			// aggregate.
			if adminRoleRaw != nil {
				if err := w.Create(
					ctx,
					adminRoleRaw,
					db.WithOplog(childOplogWrapper, adminRoleMetadata),
				); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("error creating role"))
				}

				adminRole = adminRoleRaw.(*Role)

				msgs := make([]*oplog.Message, 0, 3)
				roleTicket, err := w.GetTicket(ctx, adminRole)
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to get ticket"))
				}

				// We need to update the role version as that's the aggregate
				var roleOplogMsg oplog.Message
				rowsUpdated, err := w.Update(ctx, adminRole, []string{"Version"}, nil, db.NewOplogMsg(&roleOplogMsg), db.WithVersion(&adminRole.Version))
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to update role version for adding grant"))
				}
				if rowsUpdated != 1 {
					return errors.New(ctx, errors.MultipleRecords, op, fmt.Sprintf("updated role but %d rows updated", rowsUpdated))
				}

				msgs = append(msgs, &roleOplogMsg)

				roleGrant, err := NewRoleGrant(adminRolePublicId, "id=*;type=*;actions=*")
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
				}
				roleGrantOplogMsgs := make([]*oplog.Message, 0, 1)
				if err := w.CreateItems(ctx, []interface{}{roleGrant}, db.NewOplogMsgs(&roleGrantOplogMsgs)); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to add grants"))
				}
				msgs = append(msgs, roleGrantOplogMsgs...)

				rolePrincipal, err := NewUserRole(adminRolePublicId, userId)
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role user"))
				}
				roleUserOplogMsgs := make([]*oplog.Message, 0, 1)
				if err := w.CreateItems(ctx, []interface{}{rolePrincipal}, db.NewOplogMsgs(&roleUserOplogMsgs)); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to add grants"))
				}
				msgs = append(msgs, roleUserOplogMsgs...)

				metadata := oplog.Metadata{
					"op-type":            []string{oplog.OpType_OP_TYPE_CREATE.String()},
					"scope-id":           []string{s.PublicId},
					"scope-type":         []string{s.Type},
					"resource-public-id": []string{adminRole.PublicId},
				}
				if err := w.WriteOplogEntryWith(ctx, childOplogWrapper, roleTicket, metadata, msgs); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to write oplog"))
				}
			}

			// We create a new role, then set grants and principals on it. This
			// turns into a bunch of stuff sadly because the role is the
			// aggregate.
			if defaultRoleRaw != nil {
				if err := w.Create(
					ctx,
					defaultRoleRaw,
					db.WithOplog(childOplogWrapper, defaultRoleMetadata),
				); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("error creating role"))
				}

				defaultRole = defaultRoleRaw.(*Role)

				msgs := make([]*oplog.Message, 0, 6)
				roleTicket, err := w.GetTicket(ctx, defaultRole)
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to get ticket"))
				}

				// We need to update the role version as that's the aggregate
				var roleOplogMsg oplog.Message
				rowsUpdated, err := w.Update(ctx, defaultRole, []string{"Version"}, nil, db.NewOplogMsg(&roleOplogMsg), db.WithVersion(&defaultRole.Version))
				if err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to update role version for adding grant"))
				}
				if rowsUpdated != 1 {
					return errors.New(ctx, errors.MultipleRecords, op, fmt.Sprintf("updated role but %d rows updated", rowsUpdated))
				}
				msgs = append(msgs, &roleOplogMsg)

				// Grants
				{
					grants := []interface{}{}

					switch s.Type {
					case scope.Project.String():
						roleGrant, err := NewRoleGrant(defaultRolePublicId, "id=*;type=session;actions=list,read:self,cancel:self")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)

						roleGrant, err = NewRoleGrant(defaultRolePublicId, "type=target;actions=list")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)

					default:
						roleGrant, err := NewRoleGrant(defaultRolePublicId, "id=*;type=scope;actions=list,no-op")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)

						roleGrant, err = NewRoleGrant(defaultRolePublicId, "id=*;type=auth-method;actions=authenticate,list")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)

						roleGrant, err = NewRoleGrant(defaultRolePublicId, "id={{account.id}};actions=read,change-password")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)

						roleGrant, err = NewRoleGrant(defaultRolePublicId, "id=*;type=auth-token;actions=list,read:self,delete:self")
						if err != nil {
							return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role grant"))
						}
						grants = append(grants, roleGrant)
					}

					roleGrantOplogMsgs := make([]*oplog.Message, 0, 3)
					if err := w.CreateItems(ctx, grants, db.NewOplogMsgs(&roleGrantOplogMsgs)); err != nil {
						return errors.Wrap(ctx, err, op, errors.WithMsg("unable to add grants"))
					}
					msgs = append(msgs, roleGrantOplogMsgs...)
				}

				// Principals
				{
					principals := []interface{}{}
					userId := "u_anon"
					if s.Type == scope.Project.String() {
						userId = "u_auth"
					}
					rolePrincipal, err := NewUserRole(defaultRolePublicId, userId)
					if err != nil {
						return errors.Wrap(ctx, err, op, errors.WithMsg("unable to create in memory role user"))
					}
					principals = append(principals, rolePrincipal)

					roleUserOplogMsgs := make([]*oplog.Message, 0, 2)
					if err := w.CreateItems(ctx, principals, db.NewOplogMsgs(&roleUserOplogMsgs)); err != nil {
						return errors.Wrap(ctx, err, op, errors.WithMsg("unable to add grants"))
					}
					msgs = append(msgs, roleUserOplogMsgs...)
				}

				metadata := oplog.Metadata{
					"op-type":            []string{oplog.OpType_OP_TYPE_CREATE.String()},
					"scope-id":           []string{s.PublicId},
					"scope-type":         []string{s.Type},
					"resource-public-id": []string{defaultRole.PublicId},
				}
				if err := w.WriteOplogEntryWith(ctx, childOplogWrapper, roleTicket, metadata, msgs); err != nil {
					return errors.Wrap(ctx, err, op, errors.WithMsg("unable to write oplog"))
				}
			}

			return nil
		},
	)

	if err != nil {
		if errors.IsUniqueError(err) {
			return nil, errors.New(ctx, errors.NotUnique, op, fmt.Sprintf("scope %s/%s already exists", scopePublicId, s.Name))
		}
		return nil, errors.Wrap(ctx, err, op, errors.WithMsg(fmt.Sprintf("for %s", scopePublicId)))
	}
	return scopeRaw.(*Scope), nil
}

// UpdateScope will update a scope in the repository and return the written
// scope.  fieldMaskPaths provides field_mask.proto paths for fields that should
// be updated.  Fields will be set to NULL if the field is a zero value and
// included in fieldMask. Name and Description are the only updatable fields,
// and everything else is ignored.  If no updatable fields are included in the
// fieldMaskPaths, then an error is returned.
func (r *Repository) UpdateScope(ctx context.Context, scope *Scope, version uint32, fieldMaskPaths []string, _ ...Option) (*Scope, int, error) {
	const op = "iam.(Repository).UpdateScope"
	if scope == nil {
		return nil, db.NoRowsAffected, errors.New(ctx, errors.InvalidParameter, op, "missing scope")
	}
	if scope.PublicId == "" {
		return nil, db.NoRowsAffected, errors.New(ctx, errors.InvalidParameter, op, "missing public id")
	}
	if contains(fieldMaskPaths, "ParentId") {
		return nil, db.NoRowsAffected, errors.New(ctx, errors.InvalidFieldMask, op, "you cannot change a scope's parent")
	}
	var dbMask, nullFields []string
	dbMask, nullFields = dbcommon.BuildUpdatePaths(
		map[string]interface{}{
			"name":                scope.Name,
			"description":         scope.Description,
			"PrimaryAuthMethodId": scope.PrimaryAuthMethodId, // gorm: it's important that the field start with a capital letter.
		},
		fieldMaskPaths,
		nil,
	)
	// nada to update, so reload scope from db and return it
	if len(dbMask) == 0 && len(nullFields) == 0 {
		return nil, db.NoRowsAffected, errors.E(ctx, errors.WithCode(errors.EmptyFieldMask), errors.WithOp(op))
	}
	resource, rowsUpdated, err := r.update(ctx, scope, version, dbMask, nullFields)
	if err != nil {
		if errors.IsUniqueError(err) {
			return nil, db.NoRowsAffected, errors.New(ctx, errors.NotUnique, op, fmt.Sprintf("%s name %s already exists", scope.PublicId, scope.Name))
		}
		return nil, db.NoRowsAffected, errors.Wrap(ctx, err, op, errors.WithMsg(fmt.Sprintf("for public id %s", scope.PublicId)))
	}
	return resource.(*Scope), rowsUpdated, nil
}

// LookupScope will look up a scope in the repository.  If the scope is not
// found, it will return nil, nil.
func (r *Repository) LookupScope(ctx context.Context, withPublicId string, _ ...Option) (*Scope, error) {
	const op = "iam.(Repository).LookupScope"
	if withPublicId == "" {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "missing public id")
	}
	scope := AllocScope()
	scope.PublicId = withPublicId
	if err := r.reader.LookupByPublicId(ctx, &scope); err != nil {
		if errors.IsNotFoundError(err) {
			return nil, nil
		}
		return nil, errors.Wrap(ctx, err, op, errors.WithMsg(fmt.Sprintf("failed for %s", withPublicId)))
	}
	return &scope, nil
}

// DeleteScope will delete a scope from the repository
func (r *Repository) DeleteScope(ctx context.Context, withPublicId string, _ ...Option) (int, error) {
	const op = "iam.(Repository).DeleteScope"
	if withPublicId == "" {
		return db.NoRowsAffected, errors.New(ctx, errors.InvalidParameter, op, "missing public id")
	}
	if withPublicId == scope.Global.String() {
		return db.NoRowsAffected, errors.New(ctx, errors.InvalidParameter, op, "invalid to delete global scope")
	}
	scope := AllocScope()
	scope.PublicId = withPublicId
	rowsDeleted, err := r.delete(ctx, &scope)
	if err != nil {
		if errors.Is(err, ErrMetadataScopeNotFound) {
			return 0, nil
		}
		return db.NoRowsAffected, errors.Wrap(ctx, err, op, errors.WithMsg(fmt.Sprintf("failed for %s", withPublicId)))
	}
	return rowsDeleted, nil
}

// ListScopes with the parent IDs, supports the WithLimit option.
func (r *Repository) ListScopes(ctx context.Context, withParentIds []string, opt ...Option) ([]*Scope, error) {
	const op = "iam.(Repository).ListScopes"
	if len(withParentIds) == 0 {
		return nil, errors.New(ctx, errors.InvalidParameter, op, "missing parent id")
	}
	var items []*Scope
	err := r.list(ctx, &items, "parent_id in (?)", []interface{}{withParentIds}, opt...)
	if err != nil {
		return nil, errors.Wrap(ctx, err, op)
	}
	return items, nil
}

// ListScopesRecursively allows for recursive listing of scopes based on a root scope
// ID. It returns the root scope ID as a part of the set.
func (r *Repository) ListScopesRecursively(ctx context.Context, rootScopeId string, opt ...Option) ([]*Scope, error) {
	const op = "iam.(Repository).ListRecursively"
	var scopes []*Scope
	var where string
	var args []interface{}
	switch {
	case rootScopeId == scope.Global.String():
		// Nothing -- we want all scopes
	case strings.HasPrefix(rootScopeId, "o_"):
		// The org itself and any projects that have it as parent
		where = "public_id = ? or parent_id = ?"
		args = append(args, rootScopeId, rootScopeId)
	case strings.HasPrefix(rootScopeId, "p_"):
		// No scopes can (currently) live under projects, so just the project
		// itself
		where = "public_id = ?"
		args = append(args, rootScopeId)
	default:
		// We have no idea what scope type this is so bail
		return nil, errors.New(ctx, errors.InvalidPublicId, op+":TypeSwitch", "invalid scope ID")
	}
	err := r.list(ctx, &scopes, where, args, opt...)
	if err != nil {
		return nil, errors.Wrap(ctx, err, op+":ListQuery")
	}
	return scopes, nil
}