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/
policy_api_handler.go
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/
policy_api_handler.go
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///////////////////////////////////////////////////////////////////////
// Copyright (c) 2017 VMware, Inc. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
///////////////////////////////////////////////////////////////////////
package identitymanager
import (
"fmt"
"net/http"
middleware "github.com/go-openapi/runtime/middleware"
"github.com/go-openapi/strfmt"
"github.com/go-openapi/swag"
log "github.com/sirupsen/logrus"
"github.com/vmware/dispatch/pkg/api/v1"
"github.com/vmware/dispatch/pkg/entity-store"
policyOperations "github.com/vmware/dispatch/pkg/identity-manager/gen/restapi/operations/policy"
"github.com/vmware/dispatch/pkg/trace"
"github.com/vmware/dispatch/pkg/utils"
)
func policyModelToEntity(m *v1.Policy) *Policy {
e := Policy{
BaseEntity: entitystore.BaseEntity{
Name: *m.Name,
},
Global: m.Global,
}
for _, r := range m.Rules {
rule := Rule{
Subjects: r.Subjects,
Resources: r.Resources,
Actions: r.Actions,
}
e.Rules = append(e.Rules, rule)
}
return &e
}
func policyEntityToModel(e *Policy) *v1.Policy {
m := v1.Policy{
ID: strfmt.UUID(e.ID),
Name: swag.String(e.Name),
Kind: utils.PolicyKind,
Status: v1.Status(e.Status),
CreatedTime: e.CreatedTime.Unix(),
ModifiedTime: e.ModifiedTime.Unix(),
Global: e.Global,
}
for _, r := range e.Rules {
rule := v1.Rule{
Subjects: r.Subjects,
Resources: r.Resources,
Actions: r.Actions,
}
m.Rules = append(m.Rules, &rule)
}
return &m
}
func (h *Handlers) getPolicies(params policyOperations.GetPoliciesParams, principal interface{}) middleware.Responder {
span, ctx := trace.Trace(params.HTTPRequest.Context(), "")
defer span.Finish()
var policies []*Policy
opts := entitystore.Options{
Filter: entitystore.FilterExists(),
}
err := h.store.List(ctx, params.XDispatchOrg, opts, &policies)
if err != nil {
log.Errorf("store error when listing policies: %+v", err)
return policyOperations.NewGetPoliciesDefault(500).WithPayload(
&v1.Error{
Code: http.StatusInternalServerError,
Message: swag.String("internal server error when getting policies"),
})
}
var policyModels []*v1.Policy
for _, policy := range policies {
policyModels = append(policyModels, policyEntityToModel(policy))
}
return policyOperations.NewGetPoliciesOK().WithPayload(policyModels)
}
func (h *Handlers) getPolicy(params policyOperations.GetPolicyParams, principal interface{}) middleware.Responder {
span, ctx := trace.Trace(params.HTTPRequest.Context(), "")
defer span.Finish()
var policy Policy
opts := entitystore.Options{
Filter: entitystore.FilterExists(),
}
name := params.PolicyName
if err := h.store.Get(ctx, params.XDispatchOrg, name, opts, &policy); err != nil {
log.Errorf("store error when getting policy '%s': %+v", name, err)
return policyOperations.NewGetPolicyNotFound().WithPayload(
&v1.Error{
Code: http.StatusNotFound,
Message: utils.ErrorMsgNotFound("policy", name),
})
}
policyModel := policyEntityToModel(&policy)
return policyOperations.NewGetPolicyOK().WithPayload(policyModel)
}
func (h *Handlers) addPolicy(params policyOperations.AddPolicyParams, principal interface{}) middleware.Responder {
span, ctx := trace.Trace(params.HTTPRequest.Context(), "")
defer span.Finish()
policyRequest := params.Body
e := policyModelToEntity(policyRequest)
e.OrganizationID = params.XDispatchOrg
for _, rule := range e.Rules {
// Do some basic validation although this must be handled at the goswagger server.
if rule.Subjects == nil || rule.Actions == nil || rule.Resources == nil {
return policyOperations.NewAddPolicyBadRequest().WithPayload(
&v1.Error{
Code: http.StatusBadRequest,
Message: swag.String("invalid rule definition, missing required fields"),
})
}
}
e.Status = entitystore.StatusCREATING
if _, err := h.store.Add(ctx, e); err != nil {
if entitystore.IsUniqueViolation(err) {
return policyOperations.NewAddPolicyConflict().WithPayload(&v1.Error{
Code: http.StatusConflict,
Message: utils.ErrorMsgAlreadyExists("policy", e.Name),
})
}
log.Errorf("store error when adding a new policy %s: %+v", e.Name, err)
return policyOperations.NewAddPolicyDefault(500).WithPayload(&v1.Error{
Code: http.StatusInternalServerError,
Message: utils.ErrorMsgInternalError("policy", e.Name),
})
}
h.watcher.OnAction(ctx, e)
return policyOperations.NewAddPolicyCreated().WithPayload(policyEntityToModel(e))
}
func (h *Handlers) deletePolicy(params policyOperations.DeletePolicyParams, principal interface{}) middleware.Responder {
span, ctx := trace.Trace(params.HTTPRequest.Context(), "")
defer span.Finish()
name := params.PolicyName
opts := entitystore.Options{
Filter: entitystore.FilterExists(),
}
var e Policy
if err := h.store.Get(ctx, params.XDispatchOrg, name, opts, &e); err != nil {
log.Errorf("store error when getting policy: %+v", err)
return policyOperations.NewDeletePolicyNotFound().WithPayload(
&v1.Error{
Code: http.StatusNotFound,
Message: utils.ErrorMsgNotFound("policy", name),
})
}
if e.Status == entitystore.StatusDELETING {
log.Warnf("Attempting to delete policy %s which already is in DELETING state", e.Name)
return policyOperations.NewDeletePolicyBadRequest().WithPayload(&v1.Error{
Code: http.StatusBadRequest,
Message: swag.String(fmt.Sprintf("Unable to delete policy %s: policy is already being deleted", e.Name)),
})
}
e.Status = entitystore.StatusDELETING
if _, err := h.store.Update(ctx, e.Revision, &e); err != nil {
log.Errorf("store error when deleting a policy %s: %+v", e.Name, err)
return policyOperations.NewDeletePolicyDefault(500).WithPayload(&v1.Error{
Code: http.StatusInternalServerError,
Message: utils.ErrorMsgInternalError("policy", e.Name),
})
}
h.watcher.OnAction(ctx, &e)
return policyOperations.NewDeletePolicyOK().WithPayload(policyEntityToModel(&e))
}
func (h *Handlers) updatePolicy(params policyOperations.UpdatePolicyParams, principal interface{}) middleware.Responder {
span, ctx := trace.Trace(params.HTTPRequest.Context(), "")
defer span.Finish()
opts := entitystore.Options{
Filter: entitystore.FilterExists(),
}
e := Policy{}
if err := h.store.Get(ctx, params.XDispatchOrg, params.PolicyName, opts, &e); err != nil {
log.Errorf("store error when getting policy: %+v", err)
return policyOperations.NewUpdatePolicyNotFound().WithPayload(
&v1.Error{
Code: http.StatusNotFound,
Message: utils.ErrorMsgNotFound("policy", params.PolicyName),
})
}
updateEntity := policyModelToEntity(params.Body)
updateEntity.OrganizationID = e.OrganizationID
updateEntity.CreatedTime = e.CreatedTime
updateEntity.ID = e.ID
updateEntity.Status = entitystore.StatusUPDATING
if _, err := h.store.Update(ctx, e.Revision, updateEntity); err != nil {
log.Errorf("store error when updating a policy %s: %+v", e.Name, err)
return policyOperations.NewUpdatePolicyDefault(500).WithPayload(&v1.Error{
Code: http.StatusInternalServerError,
Message: utils.ErrorMsgInternalError("policy", e.Name),
})
}
h.watcher.OnAction(ctx, updateEntity)
return policyOperations.NewUpdatePolicyOK().WithPayload(policyEntityToModel(updateEntity))
}