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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+#ifndef CEPH_RGW_PUBSUB_H
+#define CEPH_RGW_PUBSUB_H
+
+#include "rgw_common.h"
+#include "rgw_tools.h"
+#include "rgw_zone.h"
+#include "rgw_rados.h"
+#include "rgw_notify_event_type.h"
+#include "services/svc_sys_obj.h"
+#include <boost/container/flat_map.hpp>
+
+class XMLObj;
+
+struct rgw_s3_key_filter {
+ std::string prefix_rule;
+ std::string suffix_rule;
+ std::string regex_rule;
+
+ bool has_content() const;
+
+ bool decode_xml(XMLObj *obj);
+ void dump_xml(Formatter *f) const;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(prefix_rule, bl);
+ encode(suffix_rule, bl);
+ encode(regex_rule, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(prefix_rule, bl);
+ decode(suffix_rule, bl);
+ decode(regex_rule, bl);
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(rgw_s3_key_filter)
+
+using KeyValueList = boost::container::flat_map<std::string, std::string>;
+
+struct rgw_s3_key_value_filter {
+ KeyValueList kvl;
+
+ bool has_content() const;
+
+ bool decode_xml(XMLObj *obj);
+ void dump_xml(Formatter *f) const;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(kvl, bl);
+ ENCODE_FINISH(bl);
+ }
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(kvl, bl);
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(rgw_s3_key_value_filter)
+
+struct rgw_s3_filter {
+ rgw_s3_key_filter key_filter;
+ rgw_s3_key_value_filter metadata_filter;
+ rgw_s3_key_value_filter tag_filter;
+
+ bool has_content() const;
+
+ bool decode_xml(XMLObj *obj);
+ void dump_xml(Formatter *f) const;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(2, 1, bl);
+ encode(key_filter, bl);
+ encode(metadata_filter, bl);
+ encode(tag_filter, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(2, bl);
+ decode(key_filter, bl);
+ decode(metadata_filter, bl);
+ if (struct_v >= 2) {
+ decode(tag_filter, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+};
+WRITE_CLASS_ENCODER(rgw_s3_filter)
+
+using OptionalFilter = std::optional<rgw_s3_filter>;
+
+struct rgw_pubsub_topic_filter;
+/* S3 notification configuration
+ * based on: https://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketPUTnotification.html
+<NotificationConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+ <TopicConfiguration>
+ <Filter>
+ <S3Key>
+ <FilterRule>
+ <Name>suffix</Name>
+ <Value>jpg</Value>
+ </FilterRule>
+ </S3Key>
+ <S3Metadata>
+ <FilterRule>
+ <Name></Name>
+ <Value></Value>
+ </FilterRule>
+ </S3Metadata>
+ <S3Tags>
+ <FilterRule>
+ <Name></Name>
+ <Value></Value>
+ </FilterRule>
+ </S3Tags>
+ </Filter>
+ <Id>notification1</Id>
+ <Topic>arn:aws:sns:<region>:<account>:<topic></Topic>
+ <Event>s3:ObjectCreated:*</Event>
+ <Event>s3:ObjectRemoved:*</Event>
+ </TopicConfiguration>
+</NotificationConfiguration>
+*/
+struct rgw_pubsub_s3_notification {
+ // notification id
+ std::string id;
+ // types of events
+ rgw::notify::EventTypeList events;
+ // topic ARN
+ std::string topic_arn;
+ // filter rules
+ rgw_s3_filter filter;
+
+ bool decode_xml(XMLObj *obj);
+ void dump_xml(Formatter *f) const;
+
+ rgw_pubsub_s3_notification() = default;
+ // construct from rgw_pubsub_topic_filter (used by get/list notifications)
+ explicit rgw_pubsub_s3_notification(const rgw_pubsub_topic_filter& topic_filter);
+};
+
+// return true if the key matches the prefix/suffix/regex rules of the key filter
+bool match(const rgw_s3_key_filter& filter, const std::string& key);
+// return true if the key matches the metadata/tags rules of the metadata/tags filter
+bool match(const rgw_s3_key_value_filter& filter, const KeyValueList& kvl);
+// return true if the event type matches (equal or contained in) one of the events in the list
+bool match(const rgw::notify::EventTypeList& events, rgw::notify::EventType event);
+
+struct rgw_pubsub_s3_notifications {
+ std::list<rgw_pubsub_s3_notification> list;
+ bool decode_xml(XMLObj *obj);
+ void dump_xml(Formatter *f) const;
+};
+
+/* S3 event records structure
+ * based on: https://docs.aws.amazon.com/AmazonS3/latest/dev/notification-content-structure.html
+{
+"Records":[
+ {
+ "eventVersion":""
+ "eventSource":"",
+ "awsRegion":"",
+ "eventTime":"",
+ "eventName":"",
+ "userIdentity":{
+ "principalId":""
+ },
+ "requestParameters":{
+ "sourceIPAddress":""
+ },
+ "responseElements":{
+ "x-amz-request-id":"",
+ "x-amz-id-2":""
+ },
+ "s3":{
+ "s3SchemaVersion":"1.0",
+ "configurationId":"",
+ "bucket":{
+ "name":"",
+ "ownerIdentity":{
+ "principalId":""
+ },
+ "arn":""
+ "id": ""
+ },
+ "object":{
+ "key":"",
+ "size": ,
+ "eTag":"",
+ "versionId":"",
+ "sequencer": "",
+ "metadata": ""
+ "tags": ""
+ }
+ },
+ "eventId":"",
+ }
+]
+}*/
+
+struct rgw_pubsub_s3_record {
+ constexpr static const char* const json_type_plural = "Records";
+ std::string eventVersion = "2.2";
+ // aws:s3
+ std::string eventSource = "ceph:s3";
+ // zonegroup
+ std::string awsRegion;
+ // time of the request
+ ceph::real_time eventTime;
+ // type of the event
+ std::string eventName;
+ // user that sent the request
+ std::string userIdentity;
+ // IP address of source of the request (not implemented)
+ std::string sourceIPAddress;
+ // request ID (not implemented)
+ std::string x_amz_request_id;
+ // radosgw that received the request
+ std::string x_amz_id_2;
+ std::string s3SchemaVersion = "1.0";
+ // ID received in the notification request
+ std::string configurationId;
+ // bucket name
+ std::string bucket_name;
+ // bucket owner
+ std::string bucket_ownerIdentity;
+ // bucket ARN
+ std::string bucket_arn;
+ // object key
+ std::string object_key;
+ // object size
+ uint64_t object_size = 0;
+ // object etag
+ std::string object_etag;
+ // object version id bucket is versioned
+ std::string object_versionId;
+ // hexadecimal value used to determine event order for specific key
+ std::string object_sequencer;
+ // this is an rgw extension (not S3 standard)
+ // used to store a globally unique identifier of the event
+ // that could be used for acking or any other identification of the event
+ std::string id;
+ // this is an rgw extension holding the internal bucket id
+ std::string bucket_id;
+ // meta data
+ KeyValueList x_meta_map;
+ // tags
+ KeyValueList tags;
+ // opaque data received from the topic
+ // could be used to identify the gateway
+ std::string opaque_data;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(4, 1, bl);
+ encode(eventVersion, bl);
+ encode(eventSource, bl);
+ encode(awsRegion, bl);
+ encode(eventTime, bl);
+ encode(eventName, bl);
+ encode(userIdentity, bl);
+ encode(sourceIPAddress, bl);
+ encode(x_amz_request_id, bl);
+ encode(x_amz_id_2, bl);
+ encode(s3SchemaVersion, bl);
+ encode(configurationId, bl);
+ encode(bucket_name, bl);
+ encode(bucket_ownerIdentity, bl);
+ encode(bucket_arn, bl);
+ encode(object_key, bl);
+ encode(object_size, bl);
+ encode(object_etag, bl);
+ encode(object_versionId, bl);
+ encode(object_sequencer, bl);
+ encode(id, bl);
+ encode(bucket_id, bl);
+ encode(x_meta_map, bl);
+ encode(tags, bl);
+ encode(opaque_data, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(4, bl);
+ decode(eventVersion, bl);
+ decode(eventSource, bl);
+ decode(awsRegion, bl);
+ decode(eventTime, bl);
+ decode(eventName, bl);
+ decode(userIdentity, bl);
+ decode(sourceIPAddress, bl);
+ decode(x_amz_request_id, bl);
+ decode(x_amz_id_2, bl);
+ decode(s3SchemaVersion, bl);
+ decode(configurationId, bl);
+ decode(bucket_name, bl);
+ decode(bucket_ownerIdentity, bl);
+ decode(bucket_arn, bl);
+ decode(object_key, bl);
+ decode(object_size, bl);
+ decode(object_etag, bl);
+ decode(object_versionId, bl);
+ decode(object_sequencer, bl);
+ decode(id, bl);
+ if (struct_v >= 2) {
+ decode(bucket_id, bl);
+ decode(x_meta_map, bl);
+ }
+ if (struct_v >= 3) {
+ decode(tags, bl);
+ }
+ if (struct_v >= 4) {
+ decode(opaque_data, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_s3_record)
+
+struct rgw_pubsub_event {
+ constexpr static const char* const json_type_plural = "events";
+ std::string id;
+ std::string event_name;
+ std::string source;
+ ceph::real_time timestamp;
+ JSONFormattable info;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(id, bl);
+ encode(event_name, bl);
+ encode(source, bl);
+ encode(timestamp, bl);
+ encode(info, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(id, bl);
+ decode(event_name, bl);
+ decode(source, bl);
+ decode(timestamp, bl);
+ decode(info, bl);
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_event)
+
+// settign a unique ID for an event/record based on object hash and timestamp
+void set_event_id(std::string& id, const std::string& hash, const utime_t& ts);
+
+struct rgw_pubsub_sub_dest {
+ std::string bucket_name;
+ std::string oid_prefix;
+ std::string push_endpoint;
+ std::string push_endpoint_args;
+ std::string arn_topic;
+ bool stored_secret = false;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(4, 1, bl);
+ encode(bucket_name, bl);
+ encode(oid_prefix, bl);
+ encode(push_endpoint, bl);
+ encode(push_endpoint_args, bl);
+ encode(arn_topic, bl);
+ encode(stored_secret, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(4, bl);
+ decode(bucket_name, bl);
+ decode(oid_prefix, bl);
+ decode(push_endpoint, bl);
+ if (struct_v >= 2) {
+ decode(push_endpoint_args, bl);
+ }
+ if (struct_v >= 3) {
+ decode(arn_topic, bl);
+ }
+ if (struct_v >= 4) {
+ decode(stored_secret, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+ void dump_xml(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_sub_dest)
+
+struct rgw_pubsub_sub_config {
+ rgw_user user;
+ std::string name;
+ std::string topic;
+ rgw_pubsub_sub_dest dest;
+ std::string s3_id;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(2, 1, bl);
+ encode(user, bl);
+ encode(name, bl);
+ encode(topic, bl);
+ encode(dest, bl);
+ encode(s3_id, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(2, bl);
+ decode(user, bl);
+ decode(name, bl);
+ decode(topic, bl);
+ decode(dest, bl);
+ if (struct_v >= 2) {
+ decode(s3_id, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_sub_config)
+
+struct rgw_pubsub_topic {
+ rgw_user user;
+ std::string name;
+ rgw_pubsub_sub_dest dest;
+ std::string arn;
+ std::string opaque_data;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(3, 1, bl);
+ encode(user, bl);
+ encode(name, bl);
+ encode(dest, bl);
+ encode(arn, bl);
+ encode(opaque_data, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(3, bl);
+ decode(user, bl);
+ decode(name, bl);
+ if (struct_v >= 2) {
+ decode(dest, bl);
+ decode(arn, bl);
+ }
+ if (struct_v >= 3) {
+ decode(opaque_data, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+
+ string to_str() const {
+ return user.to_str() + "/" + name;
+ }
+
+ void dump(Formatter *f) const;
+ void dump_xml(Formatter *f) const;
+
+ bool operator<(const rgw_pubsub_topic& t) const {
+ return to_str().compare(t.to_str());
+ }
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_topic)
+
+struct rgw_pubsub_topic_subs {
+ rgw_pubsub_topic topic;
+ std::set<std::string> subs;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(topic, bl);
+ encode(subs, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(topic, bl);
+ decode(subs, bl);
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_topic_subs)
+
+struct rgw_pubsub_topic_filter {
+ rgw_pubsub_topic topic;
+ rgw::notify::EventTypeList events;
+ std::string s3_id;
+ rgw_s3_filter s3_filter;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(3, 1, bl);
+ encode(topic, bl);
+ // events are stored as a vector of strings
+ std::vector<std::string> tmp_events;
+ const auto converter = s3_id.empty() ? rgw::notify::to_ceph_string : rgw::notify::to_string;
+ std::transform(events.begin(), events.end(), std::back_inserter(tmp_events), converter);
+ encode(tmp_events, bl);
+ encode(s3_id, bl);
+ encode(s3_filter, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(3, bl);
+ decode(topic, bl);
+ // events are stored as a vector of strings
+ events.clear();
+ std::vector<std::string> tmp_events;
+ decode(tmp_events, bl);
+ std::transform(tmp_events.begin(), tmp_events.end(), std::back_inserter(events), rgw::notify::from_string);
+ if (struct_v >= 2) {
+ decode(s3_id, bl);
+ }
+ if (struct_v >= 3) {
+ decode(s3_filter, bl);
+ }
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_topic_filter)
+
+struct rgw_pubsub_bucket_topics {
+ std::map<std::string, rgw_pubsub_topic_filter> topics;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(topics, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(topics, bl);
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_bucket_topics)
+
+struct rgw_pubsub_user_topics {
+ std::map<std::string, rgw_pubsub_topic_subs> topics;
+
+ void encode(bufferlist& bl) const {
+ ENCODE_START(1, 1, bl);
+ encode(topics, bl);
+ ENCODE_FINISH(bl);
+ }
+
+ void decode(bufferlist::const_iterator& bl) {
+ DECODE_START(1, bl);
+ decode(topics, bl);
+ DECODE_FINISH(bl);
+ }
+
+ void dump(Formatter *f) const;
+ void dump_xml(Formatter *f) const;
+};
+WRITE_CLASS_ENCODER(rgw_pubsub_user_topics)
+
+static std::string pubsub_user_oid_prefix = "pubsub.user.";
+
+class RGWUserPubSub
+{
+ friend class Bucket;
+
+ RGWRados *store;
+ rgw_user user;
+ RGWSysObjectCtx obj_ctx;
+
+ rgw_raw_obj user_meta_obj;
+
+ std::string user_meta_oid() const {
+ return pubsub_user_oid_prefix + user.to_str();
+ }
+
+ std::string bucket_meta_oid(const rgw_bucket& bucket) const {
+ return pubsub_user_oid_prefix + user.to_str() + ".bucket." + bucket.name + "/" + bucket.bucket_id;
+ }
+
+ std::string sub_meta_oid(const string& name) const {
+ return pubsub_user_oid_prefix + user.to_str() + ".sub." + name;
+ }
+
+ template <class T>
+ int read(const rgw_raw_obj& obj, T *data, RGWObjVersionTracker *objv_tracker);
+
+ template <class T>
+ int write(const rgw_raw_obj& obj, const T& info, RGWObjVersionTracker *obj_tracker);
+
+ int remove(const rgw_raw_obj& obj, RGWObjVersionTracker *objv_tracker);
+
+ int read_user_topics(rgw_pubsub_user_topics *result, RGWObjVersionTracker *objv_tracker);
+ int write_user_topics(const rgw_pubsub_user_topics& topics, RGWObjVersionTracker *objv_tracker);
+
+public:
+ RGWUserPubSub(RGWRados *_store, const rgw_user& _user) : store(_store),
+ user(_user),
+ obj_ctx(store->svc.sysobj->init_obj_ctx()) {
+ get_user_meta_obj(&user_meta_obj);
+ }
+
+ class Bucket {
+ friend class RGWUserPubSub;
+ RGWUserPubSub *ps;
+ rgw_bucket bucket;
+ rgw_raw_obj bucket_meta_obj;
+
+ // read the list of topics associated with a bucket and populate into result
+ // use version tacker to enforce atomicity between read/write
+ // return 0 on success or if no topic was associated with the bucket, error code otherwise
+ int read_topics(rgw_pubsub_bucket_topics *result, RGWObjVersionTracker *objv_tracker);
+ // set the list of topics associated with a bucket
+ // use version tacker to enforce atomicity between read/write
+ // return 0 on success, error code otherwise
+ int write_topics(const rgw_pubsub_bucket_topics& topics, RGWObjVersionTracker *objv_tracker);
+ public:
+ Bucket(RGWUserPubSub *_ps, const rgw_bucket& _bucket) : ps(_ps), bucket(_bucket) {
+ ps->get_bucket_meta_obj(bucket, &bucket_meta_obj);
+ }
+
+ // read the list of topics associated with a bucket and populate into result
+ // return 0 on success or if no topic was associated with the bucket, error code otherwise
+ int get_topics(rgw_pubsub_bucket_topics *result);
+ // adds a topic + filter (event list, and possibly name metadata or tags filters) to a bucket
+ // assigning a notification name is optional (needed for S3 compatible notifications)
+ // if the topic already exist on the bucket, the filter event list may be updated
+ // for S3 compliant notifications the version with: s3_filter and notif_name should be used
+ // return -ENOENT if the topic does not exists
+ // return 0 on success, error code otherwise
+ int create_notification(const string& topic_name, const rgw::notify::EventTypeList& events);
+ int create_notification(const string& topic_name, const rgw::notify::EventTypeList& events, OptionalFilter s3_filter, const std::string& notif_name);
+ // remove a topic and filter from bucket
+ // if the topic does not exists on the bucket it is a no-op (considered success)
+ // return -ENOENT if the topic does not exists
+ // return 0 on success, error code otherwise
+ int remove_notification(const string& topic_name);
+ };
+
+ // base class for subscription
+ class Sub {
+ friend class RGWUserPubSub;
+ protected:
+ RGWUserPubSub* const ps;
+ const std::string sub;
+ rgw_raw_obj sub_meta_obj;
+
+ int read_sub(rgw_pubsub_sub_config *result, RGWObjVersionTracker *objv_tracker);
+ int write_sub(const rgw_pubsub_sub_config& sub_conf, RGWObjVersionTracker *objv_tracker);
+ int remove_sub(RGWObjVersionTracker *objv_tracker);
+ public:
+ Sub(RGWUserPubSub *_ps, const std::string& _sub) : ps(_ps), sub(_sub) {
+ ps->get_sub_meta_obj(sub, &sub_meta_obj);
+ }
+
+ virtual ~Sub() = default;
+
+ int subscribe(const string& topic_name, const rgw_pubsub_sub_dest& dest, const std::string& s3_id="");
+ int unsubscribe(const string& topic_name);
+ int get_conf(rgw_pubsub_sub_config* result);
+
+ static const int DEFAULT_MAX_EVENTS = 100;
+ // followint virtual methods should only be called in derived
+ virtual int list_events(const string& marker, int max_events) {ceph_assert(false);}
+ virtual int remove_event(const string& event_id) {ceph_assert(false);}
+ virtual void dump(Formatter* f) const {ceph_assert(false);}
+ };
+
+ // subscription with templated list of events to support both S3 compliant and Ceph specific events
+ template<typename EventType>
+ class SubWithEvents : public Sub {
+ private:
+ struct list_events_result {
+ std::string next_marker;
+ bool is_truncated{false};
+ void dump(Formatter *f) const;
+ std::vector<EventType> events;
+ } list;
+
+ public:
+ SubWithEvents(RGWUserPubSub *_ps, const string& _sub) : Sub(_ps, _sub) {}
+
+ virtual ~SubWithEvents() = default;
+
+ int list_events(const string& marker, int max_events) override;
+ int remove_event(const string& event_id) override;
+ void dump(Formatter* f) const override;
+ };
+
+ using BucketRef = std::shared_ptr<Bucket>;
+ using SubRef = std::shared_ptr<Sub>;
+
+ BucketRef get_bucket(const rgw_bucket& bucket) {
+ return std::make_shared<Bucket>(this, bucket);
+ }
+
+ SubRef get_sub(const string& sub) {
+ return std::make_shared<Sub>(this, sub);
+ }
+
+ SubRef get_sub_with_events(const string& sub) {
+ auto tmpsub = Sub(this, sub);
+ rgw_pubsub_sub_config conf;
+ if (tmpsub.get_conf(&conf) < 0) {
+ return nullptr;
+ }
+ if (conf.s3_id.empty()) {
+ return std::make_shared<SubWithEvents<rgw_pubsub_event>>(this, sub);
+ }
+ return std::make_shared<SubWithEvents<rgw_pubsub_s3_record>>(this, sub);
+ }
+
+ void get_user_meta_obj(rgw_raw_obj *obj) const {
+ *obj = rgw_raw_obj(store->svc.zone->get_zone_params().log_pool, user_meta_oid());
+ }
+
+ void get_bucket_meta_obj(const rgw_bucket& bucket, rgw_raw_obj *obj) const {
+ *obj = rgw_raw_obj(store->svc.zone->get_zone_params().log_pool, bucket_meta_oid(bucket));
+ }
+
+ void get_sub_meta_obj(const string& name, rgw_raw_obj *obj) const {
+ *obj = rgw_raw_obj(store->svc.zone->get_zone_params().log_pool, sub_meta_oid(name));
+ }
+
+ // get all topics defined for the user and populate them into "result"
+ // return 0 on success or if no topics exist, error code otherwise
+ int get_user_topics(rgw_pubsub_user_topics *result);
+ // get a topic with its subscriptions by its name and populate it into "result"
+ // return -ENOENT if the topic does not exists
+ // return 0 on success, error code otherwise
+ int get_topic(const string& name, rgw_pubsub_topic_subs *result);
+ // get a topic with by its name and populate it into "result"
+ // return -ENOENT if the topic does not exists
+ // return 0 on success, error code otherwise
+ int get_topic(const string& name, rgw_pubsub_topic *result);
+ // create a topic with a name only
+ // if the topic already exists it is a no-op (considered success)
+ // return 0 on success, error code otherwise
+ int create_topic(const string& name);
+ // create a topic with push destination information and ARN
+ // if the topic already exists the destination and ARN values may be updated (considered succsess)
+ // return 0 on success, error code otherwise
+ int create_topic(const string& name, const rgw_pubsub_sub_dest& dest, const std::string& arn, const std::string& opaque_data);
+ // remove a topic according to its name
+ // if the topic does not exists it is a no-op (considered success)
+ // return 0 on success, error code otherwise
+ int remove_topic(const string& name);
+};
+
+template <class T>
+int RGWUserPubSub::read(const rgw_raw_obj& obj, T *result, RGWObjVersionTracker *objv_tracker)
+{
+ bufferlist bl;
+ int ret = rgw_get_system_obj(store, obj_ctx,
+ obj.pool, obj.oid,
+ bl,
+ objv_tracker,
+ nullptr, nullptr, nullptr);
+ if (ret < 0) {
+ return ret;
+ }
+
+ auto iter = bl.cbegin();
+ try {
+ decode(*result, iter);
+ } catch (buffer::error& err) {
+ return -EIO;
+ }
+
+ return 0;
+}
+
+template <class T>
+int RGWUserPubSub::write(const rgw_raw_obj& obj, const T& info, RGWObjVersionTracker *objv_tracker)
+{
+ bufferlist bl;
+ encode(info, bl);
+
+ int ret = rgw_put_system_obj(store, obj.pool, obj.oid,
+ bl, false, objv_tracker,
+ real_time());
+ if (ret < 0) {
+ return ret;
+ }
+
+ obj_ctx.invalidate(const_cast<rgw_raw_obj&>(obj));
+ return 0;
+}
+
+#endif