rgw/iam: adds implementation for iam UpdateOidcProviderThumbprint.

This API adds a mechanism to update the thumbprint list
of an oidc provider identified by its arn. The existing
thumbprint list is completely erased and then the new
list is added.

fixes: https://tracker.ceph.com/issues/63214

Signed-off-by: Pritha Srivastava <[email protected]>

src/rgw/rgw_auth_s3.cc

@@ -495,6 +495,8 @@ bool is_non_s3_op(RGWOpType op_type)
   case RGW_OP_DELETE_OIDC_PROVIDER:
   case RGW_OP_GET_OIDC_PROVIDER:
   case RGW_OP_LIST_OIDC_PROVIDERS:
+  case RGW_OP_ADD_CLIENTID_TO_OIDC_PROVIDER:
+  case RGW_OP_UPDATE_OIDC_PROVIDER_THUMBPRINT:
   case RGW_OP_PUBSUB_TOPIC_CREATE:
   case RGW_OP_PUBSUB_TOPICS_LIST:
   case RGW_OP_PUBSUB_TOPIC_GET:

src/rgw/rgw_iam_policy.cc

@@ -161,6 +161,7 @@ static const actpair actpairs[] =
  { "iam:GetOIDCProvider", iamGetOIDCProvider},
  { "iam:ListOIDCProviders", iamListOIDCProviders},
  { "iam:AddClientIdToOIDCProvider", iamAddClientIdToOIDCProvider},
+ { "iam:UpdateOIDCProviderThumbprint", iamUpdateOIDCProviderThumbprint},
  { "iam:TagRole", iamTagRole},
  { "iam:ListRoleTags", iamListRoleTags},
  { "iam:UntagRole", iamUntagRole},
@@ -1554,6 +1555,9 @@ const char* action_bit_string(uint64_t action) {
   case iamAddClientIdToOIDCProvider:
     return "iam:AddClientIdToOIDCProvider";
 
+  case iamUpdateOIDCProviderThumbprint:
+    return "iam:UpdateOIDCProviderThumbprint";
+
   case iamTagRole:
     return "iam:TagRole";
 

src/rgw/rgw_iam_policy.h

@@ -144,6 +144,7 @@ enum {
   iamGetOIDCProvider,
   iamListOIDCProviders,
   iamAddClientIdToOIDCProvider,
+  iamUpdateOIDCProviderThumbprint,
   iamTagRole,
   iamListRoleTags,
   iamUntagRole,

src/rgw/rgw_op_type.h

@@ -162,5 +162,6 @@ enum RGWOpType {
   RGW_OP_GET_OIDC_PROVIDER,
   RGW_OP_LIST_OIDC_PROVIDERS,
   RGW_OP_ADD_CLIENTID_TO_OIDC_PROVIDER,
+  RGW_OP_UPDATE_OIDC_PROVIDER_THUMBPRINT,
 };
 

src/rgw/rgw_rest_iam.cc

@@ -46,6 +46,7 @@ static const std::unordered_map<std::string_view, op_generator> op_generators =
   {"GetOpenIDConnectProvider", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWGetOIDCProvider;}},
   {"DeleteOpenIDConnectProvider", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWDeleteOIDCProvider;}},
   {"AddClientIDToOpenIDConnectProvider", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWAddClientIdToOIDCProvider;}},
+  {"UpdateOpenIDConnectProviderThumbprint", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWUpdateOIDCProviderThumbprint;}},
   {"TagRole", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWTagRole(bl_post_body);}},
   {"ListRoleTags", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWListRoleTags;}},
   {"UntagRole", [](const bufferlist& bl_post_body) -> RGWOp* {return new RGWUntagRole(bl_post_body);}},

src/rgw/rgw_rest_oidc_provider.cc

@@ -405,3 +405,75 @@ void RGWAddClientIdToOIDCProvider::execute(optional_yield y)
     s->formatter->close_section();
   }
 }
+
+RGWUpdateOIDCProviderThumbprint::RGWUpdateOIDCProviderThumbprint()
+  : RGWRestOIDCProvider(rgw::IAM::iamUpdateOIDCProviderThumbprint, RGW_CAP_WRITE)
+{
+}
+
+int RGWUpdateOIDCProviderThumbprint::init_processing(optional_yield y)
+{
+  std::string_view account;
+  if (const auto& acc = s->auth.identity->get_account(); acc) {
+    account = acc->id;
+  } else {
+    account = s->user->get_tenant();
+  }
+  std::string provider_arn = s->info.args.get("OpenIDConnectProviderArn");
+  auto ret = validate_provider_arn(provider_arn, account,
+                               resource, url, s->err.message);
+  if (ret < 0) {
+    return ret;
+  }
+
+  auto val_map = s->info.args.get_params();
+  /* From AWS documentation here: https://docs.aws.amazon.com/IAM/latest/APIReference/API_UpdateOpenIDConnectProviderThumbprint.html
+  The list that you pass with this operation completely replaces the existing list of thumbprints. (The lists are not merged.) */
+  for (auto& it : val_map) {
+    if (it.first.find("ThumbprintList.member.") != string::npos) {
+        if (it.second.size() > MAX_OIDC_THUMBPRINT_LEN) {
+          s->err.message = "Thumbprint cannot exceed the maximum length of "
+              + std::to_string(MAX_OIDC_THUMBPRINT_LEN);
+          ldpp_dout(this, 20) << "ERROR: Thumbprint exceeds maximum length of " << MAX_OIDC_THUMBPRINT_LEN << dendl;
+          return -EINVAL;
+        }
+        thumbprints.emplace_back(it.second);
+    }
+  }
+
+  if (thumbprints.empty()) {
+    s->err.message = "Missing required element ThumbprintList";
+    ldpp_dout(this, 20) << "ERROR: Thumbprints list is empty" << dendl;
+    return -EINVAL;
+  }
+
+  return 0;
+}
+
+void RGWUpdateOIDCProviderThumbprint::execute(optional_yield y)
+{
+  RGWOIDCProviderInfo info;
+  op_ret = driver->load_oidc_provider(this, y, resource.account, url, info);
+
+  if (op_ret < 0) {
+    if (op_ret != -ENOENT && op_ret != -EINVAL) {
+      op_ret = ERR_INTERNAL_ERROR;
+    }
+    return;
+  }
+
+  info.thumbprints = std::move(thumbprints);
+
+  constexpr bool exclusive = false;
+  op_ret = driver->store_oidc_provider(this, y, info, exclusive);
+  if (op_ret == 0) {
+    s->formatter->open_object_section("AddClientIDToOpenIDConnectProviderResponse");
+    s->formatter->open_object_section("ResponseMetadata");
+    s->formatter->dump_string("RequestId", s->trans_id);
+    s->formatter->close_section();
+    s->formatter->open_object_section("AddClientIDToOpenIDConnectProviderResponse");
+    dump_oidc_provider(info, s->formatter);
+    s->formatter->close_section();
+    s->formatter->close_section();
+  }
+}

src/rgw/rgw_rest_oidc_provider.h

@@ -73,4 +73,16 @@ class RGWAddClientIdToOIDCProvider : public RGWRestOIDCProvider {
   void execute(optional_yield y) override;
   const char* name() const override { return "add_client_id_to_oidc_provider"; }
   RGWOpType get_type() override { return RGW_OP_ADD_CLIENTID_TO_OIDC_PROVIDER; }
-};
+};
+
+class RGWUpdateOIDCProviderThumbprint : public RGWRestOIDCProvider {
+  std::string url;
+  std::vector<std::string> thumbprints;
+public:
+  RGWUpdateOIDCProviderThumbprint();
+
+  int init_processing(optional_yield y);
+  void execute(optional_yield y) override;
+  const char* name() const override { return "update_oidc_provider_thumbprint"; }
+  RGWOpType get_type() override { return RGW_OP_UPDATE_OIDC_PROVIDER_THUMBPRINT; }
+};