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resource_huaweicloud_identity_provider.go
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resource_huaweicloud_identity_provider.go
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package iam
import (
"context"
"fmt"
"log"
"regexp"
"strings"
"github.com/hashicorp/go-multierror"
"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/validation"
"github.com/chnsz/golangsdk"
"github.com/chnsz/golangsdk/openstack/identity/federatedauth/mappings"
"github.com/chnsz/golangsdk/openstack/identity/federatedauth/metadatas"
"github.com/chnsz/golangsdk/openstack/identity/federatedauth/oidcconfig"
"github.com/chnsz/golangsdk/openstack/identity/federatedauth/protocols"
"github.com/chnsz/golangsdk/openstack/identity/federatedauth/providers"
"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/common"
"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/config"
"github.com/huaweicloud/terraform-provider-huaweicloud/huaweicloud/utils"
)
const (
protocolSAML = "saml"
protocolOIDC = "oidc"
scopeSpilt = " "
)
// @API IAM PUT /v3/OS-FEDERATION/identity_providers/{id}
// @API IAM PATCH /v3/OS-FEDERATION/identity_providers/{id}
// @API IAM GET /v3/OS-FEDERATION/identity_providers/{id}
// @API IAM DELETE /v3/OS-FEDERATION/identity_providers/{id}
// @API IAM GET /v3.0/OS-FEDERATION/identity-providers/{idp_id}/openid-connect-config
// @API IAM POST /v3.0/OS-FEDERATION/identity-providers/{idp_id}/openid-connect-config
// @API IAM PUT /v3.0/OS-FEDERATION/identity-providers/{idp_id}/openid-connect-config
// @API IAM PUT /v3/OS-FEDERATION/mappings/{id}
// @API IAM GET /v3/OS-FEDERATION/mappings/{id}
// @API IAM DELETE /v3/OS-FEDERATION/mappings/{id}
// @API IAM GET /v3/OS-FEDERATION/identity_providers/{idp_id}/protocols
// @API IAM PUT /v3/OS-FEDERATION/identity_providers/{idp_id}/protocols/{protocol_id}
// @API IAM GET /v3-ext/OS-FEDERATION/identity_providers/{idp_id}/protocols/{protocol_id}/metadata
// @API IAM POST /v3-ext/OS-FEDERATION/identity_providers/{idp_id}/protocols/{protocol_id}/metadata
func ResourceIdentityProvider() *schema.Resource {
return &schema.Resource{
CreateContext: resourceIdentityProviderCreate,
ReadContext: resourceIdentityProviderRead,
UpdateContext: resourceIdentityProviderUpdate,
DeleteContext: resourceIdentityProviderDelete,
Importer: &schema.ResourceImporter{
StateContext: schema.ImportStatePassthroughContext,
},
Schema: map[string]*schema.Schema{
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validation.StringMatch(regexp.MustCompile(`^[\w-]{1,64}$`),
"The maximum length is 64 characters. "+
"Only letters, digits, underscores (_), and hyphens (-) are allowed"),
},
"protocol": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validation.StringInSlice([]string{protocolSAML, protocolOIDC}, false),
},
"sso_type": {
Type: schema.TypeString,
Optional: true,
ForceNew: true,
Computed: true,
},
"status": {
Type: schema.TypeBool,
Optional: true,
Default: true,
},
"metadata": {
Type: schema.TypeString,
Optional: true,
StateFunc: utils.HashAndHexEncode,
},
"description": {
Type: schema.TypeString,
Optional: true,
},
"access_config": {
Type: schema.TypeList,
Optional: true,
MaxItems: 1,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"access_type": {
Type: schema.TypeString,
Required: true,
ValidateFunc: validation.StringInSlice([]string{"program", "program_console"}, false),
},
"provider_url": {
Type: schema.TypeString,
Required: true,
},
"client_id": {
Type: schema.TypeString,
Required: true,
},
"signing_key": {
Type: schema.TypeString,
Required: true,
DiffSuppressFunc: func(k, old, new string, d *schema.ResourceData) bool {
equal, _ := utils.CompareJsonTemplateAreEquivalent(old, new)
return equal
},
},
"authorization_endpoint": {
Type: schema.TypeString,
Optional: true,
Computed: true,
},
"scopes": {
Type: schema.TypeList,
Optional: true,
MaxItems: 10,
Computed: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
"response_type": {
Type: schema.TypeString,
Optional: true,
Default: "id_token",
},
"response_mode": {
Type: schema.TypeString,
Optional: true,
Default: "form_post",
ValidateFunc: validation.StringInSlice([]string{"fragment", "form_post"}, false),
},
},
},
},
"conversion_rules": {
Type: schema.TypeList,
Computed: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"local": {
Type: schema.TypeList,
Computed: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"username": {
Type: schema.TypeString,
Computed: true,
},
"group": {
Type: schema.TypeString,
Computed: true,
},
},
},
},
"remote": {
Type: schema.TypeList,
Computed: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"attribute": {
Type: schema.TypeString,
Computed: true,
},
"condition": {
Type: schema.TypeString,
Computed: true,
},
"value": {
Type: schema.TypeList,
Computed: true,
Elem: &schema.Schema{Type: schema.TypeString},
},
},
},
},
},
},
},
"login_link": {
Type: schema.TypeString,
Computed: true,
},
},
}
}
func resourceIdentityProviderCreate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
conf := meta.(*config.Config)
client, err := conf.IAMNoVersionClient(conf.GetRegion(d))
if err != nil {
return diag.Errorf("error creating IAM client without version: %s", err)
}
// Create a SAML protocol provider.
opts := providers.CreateProviderOpts{
Enabled: d.Get("status").(bool),
Description: d.Get("description").(string),
SsoType: d.Get("sso_type").(string),
}
name := d.Get("name").(string)
log.Printf("[DEBUG] Create identity options %s : %#v", name, opts)
provider, err := providers.Create(client, name, opts)
if err != nil {
return diag.Errorf("error creating identity provider: %s", err)
}
d.SetId(provider.ID)
// Create default mapping and protocol
err = createProtocol(client, d)
if err != nil {
return diag.Errorf("error creating provider protocol: %s", err)
}
// Import metadata, metadata only worked on saml protocol providers
protocol := d.Get("protocol").(string)
if protocol == protocolSAML {
err = importMetadata(conf, d)
if err != nil {
return diag.Errorf("error importing matedata into identity provider: %s", err)
}
} else if ac, ok := d.GetOk("access_config"); ok {
// Create access config for oidc provider.
accessConfigArr := ac.([]interface{})
accessConfig := accessConfigArr[0].(map[string]interface{})
accessType := accessConfig["access_type"].(string)
createAccessTypeOpts := oidcconfig.CreateOpts{
AccessMode: accessType,
IdpURL: accessConfig["provider_url"].(string),
ClientID: accessConfig["client_id"].(string),
SigningKey: accessConfig["signing_key"].(string),
}
if accessType == "program_console" {
scopes := utils.ExpandToStringList(accessConfig["scopes"].([]interface{}))
createAccessTypeOpts.Scope = strings.Join(scopes, scopeSpilt)
createAccessTypeOpts.AuthorizationEndpoint = accessConfig["authorization_endpoint"].(string)
createAccessTypeOpts.ResponseType = accessConfig["response_type"].(string)
createAccessTypeOpts.ResponseMode = accessConfig["response_mode"].(string)
}
log.Printf("[DEBUG] Create access type of provider: %#v", opts)
_, err = oidcconfig.Create(client, provider.ID, createAccessTypeOpts)
if err != nil {
return diag.Errorf("error creating the provider access config: %s", err)
}
}
return resourceIdentityProviderRead(ctx, d, meta)
}
// importMetadata import metadata to provider, overwrite if it exists.
func importMetadata(conf *config.Config, d *schema.ResourceData) error {
metadata := d.Get("metadata").(string)
if len(metadata) == 0 {
return nil
}
client, err := conf.IAMNoVersionClient(conf.GetRegion(d))
if err != nil {
return fmt.Errorf("error creating IAM client without version: %s", err)
}
providerID := d.Get("name").(string)
opts := metadatas.ImportOpts{
DomainID: conf.DomainID,
Metadata: metadata,
}
_, err = metadatas.Import(client, providerID, protocolSAML, opts)
if err != nil {
return fmt.Errorf("failed to import metadata: %s", err)
}
return nil
}
// createProtocol create default mapping and protocol
func createProtocol(client *golangsdk.ServiceClient, d *schema.ResourceData) error {
providerID := d.Get("name").(string)
// Create default mapping
defaultConversionRules := getDefaultConversionOpts()
mappingID := generateMappingID(providerID)
_, err := mappings.Create(client, mappingID, *defaultConversionRules)
if err != nil {
return fmt.Errorf("error in creating default conversion rule: %s", err)
}
// Create protocol
protocolName := d.Get("protocol").(string)
_, err = protocols.Create(client, providerID, protocolName, mappingID)
if err != nil {
// If fails to create protocols, then delete the mapping.
log.Printf("[WARN] error creating protocol and the mapping will be deleted. Error: %s", err)
mErr := multierror.Append(err,
mappings.Delete(client, mappingID),
)
return fmt.Errorf("error creating identity provider protocol: %s", mErr.Error())
}
return nil
}
func getDefaultConversionOpts() *mappings.MappingOption {
localRules := []mappings.LocalRule{
{
User: mappings.LocalRuleVal{
Name: "FederationUser",
},
},
}
remoteRules := []mappings.RemoteRule{
{
Type: "__NAMEID__",
},
}
opts := mappings.MappingOption{
Rules: []mappings.MappingRule{
{
Local: localRules,
Remote: remoteRules,
},
},
}
return &opts
}
func resourceIdentityProviderRead(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
conf := meta.(*config.Config)
client, err := conf.IAMNoVersionClient(conf.GetRegion(d))
if err != nil {
return diag.Errorf("error creating IAM client without version: %s", err)
}
providerID := d.Id()
provider, err := providers.Get(client, providerID)
if err != nil {
return common.CheckDeletedDiag(d, err, "error obtaining identity provider")
}
// Query the protocol name from HuaweiCloud.
protocol := queryProtocolName(client, d)
url := generateLoginLink(conf.Cloud, conf.DomainID, provider.ID, protocol)
mErr := multierror.Append(nil,
d.Set("name", provider.ID),
d.Set("protocol", protocol),
d.Set("sso_type", provider.SsoType),
d.Set("status", provider.Enabled),
d.Set("login_link", url),
d.Set("description", provider.Description),
)
// Query and set conversion rules
mappingID := generateMappingID(providerID)
conversions, err := mappings.Get(client, mappingID)
if err == nil {
conversionRules := flattenConversionRulesAttr(conversions)
err = d.Set("conversion_rules", conversionRules)
mErr = multierror.Append(mErr, err)
}
// Query and set metadata of the protocol SAML provider
if protocol == protocolSAML {
r, err := metadatas.Get(client, providerID, protocolSAML)
if err == nil {
err = d.Set("metadata", utils.HashAndHexEncode(r.Data))
mErr = multierror.Append(mErr, err)
}
}
// Query and set access type of the protocol OIDC provider
if protocol == protocolOIDC {
accessType, err := oidcconfig.Get(client, providerID)
if err == nil {
scopes := strings.Split(accessType.Scope, scopeSpilt)
accessTypeConfig := []interface{}{
map[string]interface{}{
"access_type": accessType.AccessMode,
"provider_url": accessType.IdpURL,
"client_id": accessType.ClientID,
"signing_key": accessType.SigningKey,
"scopes": scopes,
"response_mode": accessType.ResponseMode,
"authorization_endpoint": accessType.AuthorizationEndpoint,
"response_type": accessType.ResponseType,
},
}
mErr = multierror.Append(mErr,
d.Set("access_config", accessTypeConfig),
)
}
}
if err = mErr.ErrorOrNil(); err != nil {
return diag.Errorf("error setting identity provider attributes: %s", err)
}
return nil
}
func flattenConversionRulesAttr(conversions *mappings.IdentityMapping) []interface{} {
conversionRules := make([]interface{}, 0, len(conversions.Rules))
for _, v := range conversions.Rules {
localRules := make([]map[string]interface{}, 0, len(v.Local))
for _, localRule := range v.Local {
username := localRule.User.Name
r := map[string]interface{}{
"username": username,
}
if localRule.Group != nil {
r["group"] = localRule.Group.Name
}
localRules = append(localRules, r)
}
remoteRules := make([]map[string]interface{}, 0, len(v.Remote))
for _, remoteRule := range v.Remote {
r := map[string]interface{}{
"attribute": remoteRule.Type,
}
if len(remoteRule.NotAnyOf) > 0 {
r["condition"] = "not_any_of"
r["value"] = remoteRule.NotAnyOf
} else if len(remoteRule.AnyOneOf) > 0 {
r["condition"] = "any_one_of"
r["value"] = remoteRule.AnyOneOf
}
remoteRules = append(remoteRules, r)
}
rule := map[string]interface{}{
"local": localRules,
"remote": remoteRules,
}
conversionRules = append(conversionRules, rule)
}
return conversionRules
}
func generateMappingID(providerID string) string {
return "mapping_" + providerID
}
// generateLoginLink generate login link base on config.domainID.
func generateLoginLink(host, domainID, id, protocol string) string {
// The domain name is the same as that of the console, it is converted according to the config.Cloud.
if host == "myhuaweicloud.com" {
host = "huaweicloud.com"
}
url := fmt.Sprintf("https://auth.%s/authui/federation/websso?domain_id=%s&idp=%s&protocol=%s",
host, domainID, id, protocol)
return url
}
func queryProtocolName(client *golangsdk.ServiceClient, d *schema.ResourceData) string {
arr, err := protocols.List(client, d.Id())
if err != nil {
return ""
}
// The SAML protocol provider may not have protocol data,
// so the default value is set to SAML.
protocolName := protocolSAML
if len(arr) > 0 {
protocolName = arr[0].ID
}
return protocolName
}
func resourceIdentityProviderUpdate(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
conf := meta.(*config.Config)
client, err := conf.IAMNoVersionClient(conf.GetRegion(d))
if err != nil {
return diag.Errorf("error creating IAM client without version: %s", err)
}
mErr := &multierror.Error{}
if d.HasChanges("status", "description") {
status := d.Get("status").(bool)
description := d.Get("description").(string)
opts := providers.UpdateOpts{
Enabled: &status,
Description: &description,
}
log.Printf("[DEBUG] Update identity options %s : %#v", d.Id(), opts)
_, err = providers.Update(client, d.Id(), opts)
if err != nil {
e := fmt.Errorf("failed to update identity provider: %s", err)
mErr = multierror.Append(mErr, e)
}
}
if d.HasChange("metadata") {
err = importMetadata(conf, d)
if err != nil {
mErr = multierror.Append(mErr, err)
}
}
if d.HasChange("access_config") && d.Get("protocol") == protocolOIDC {
err = updateAccessConfig(client, d)
if err != nil {
mErr = multierror.Append(mErr, err)
}
}
if err = mErr.ErrorOrNil(); err != nil {
return diag.Errorf("error updating provider: %s", err)
}
return resourceIdentityProviderRead(ctx, d, meta)
}
func updateAccessConfig(client *golangsdk.ServiceClient, d *schema.ResourceData) error {
accessConfigArr := d.Get("access_config").([]interface{})
if len(accessConfigArr) == 0 {
return fmt.Errorf("the access_config block is required for the OIDC provider")
}
accessConfig := accessConfigArr[0].(map[string]interface{})
accessType := accessConfig["access_type"].(string)
opts := oidcconfig.UpdateOpenIDConnectConfigOpts{
AccessMode: accessType,
IdpURL: accessConfig["provider_url"].(string),
ClientID: accessConfig["client_id"].(string),
SigningKey: accessConfig["signing_key"].(string),
}
if accessType == "program_console" {
scopes := utils.ExpandToStringList(accessConfig["scopes"].([]interface{}))
opts.Scope = strings.Join(scopes, scopeSpilt)
opts.AuthorizationEndpoint = accessConfig["authorization_endpoint"].(string)
opts.ResponseType = accessConfig["response_type"].(string)
opts.ResponseMode = accessConfig["response_mode"].(string)
}
log.Printf("[DEBUG] Update access type of provider: %#v", opts)
providerID := d.Id()
_, err := oidcconfig.Update(client, providerID, opts)
return err
}
func resourceIdentityProviderDelete(_ context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
conf := meta.(*config.Config)
client, err := conf.IAMNoVersionClient(conf.GetRegion(d))
if err != nil {
return diag.Errorf("error creating IAM client without version: %s", err)
}
err = providers.Delete(client, d.Id())
if err != nil {
return common.CheckDeletedDiag(d, err, "error deleting IAM provider")
}
return nil
}