--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#ifndef CEPH_RGW_REST_CONN_H
+#define CEPH_RGW_REST_CONN_H
+
+#include "rgw_rados.h"
+#include "rgw_rest_client.h"
+#include "common/ceph_json.h"
+#include "common/RefCountedObj.h"
+
+#include <atomic>
+
+class CephContext;
+class RGWRados;
+
+template <class T>
+static int parse_decode_json(CephContext *cct, T& t, bufferlist& bl)
+{
+ JSONParser p;
+ int ret = p.parse(bl.c_str(), bl.length());
+ if (ret < 0) {
+ return ret;
+ }
+
+ try {
+ decode_json_obj(t, &p);
+ } catch (JSONDecoder::err& e) {
+ return -EINVAL;
+ }
+ return 0;
+}
+
+struct rgw_http_param_pair {
+ const char *key;
+ const char *val;
+};
+
+// copy a null-terminated rgw_http_param_pair list into a list of string pairs
+inline param_vec_t make_param_list(const rgw_http_param_pair* pp)
+{
+ param_vec_t params;
+ while (pp && pp->key) {
+ string k = pp->key;
+ string v = (pp->val ? pp->val : "");
+ params.emplace_back(make_pair(std::move(k), std::move(v)));
+ ++pp;
+ }
+ return params;
+}
+
+class RGWRESTConn
+{
+ CephContext *cct;
+ vector<string> endpoints;
+ RGWAccessKey key;
+ string self_zone_group;
+ string remote_id;
+ std::atomic<int64_t> counter = { 0 };
+
+public:
+
+ RGWRESTConn(CephContext *_cct, RGWRados *store, const string& _remote_id, const list<string>& endpoints);
+ // custom move needed for atomic
+ RGWRESTConn(RGWRESTConn&& other);
+ RGWRESTConn& operator=(RGWRESTConn&& other);
+
+ int get_url(string& endpoint);
+ string get_url();
+ const string& get_self_zonegroup() {
+ return self_zone_group;
+ }
+ const string& get_remote_id() {
+ return remote_id;
+ }
+ RGWAccessKey& get_key() {
+ return key;
+ }
+
+ CephContext *get_ctx() {
+ return cct;
+ }
+ size_t get_endpoint_count() const { return endpoints.size(); }
+
+ /* sync request */
+ int forward(const rgw_user& uid, req_info& info, obj_version *objv, size_t max_response, bufferlist *inbl, bufferlist *outbl);
+
+ /* async request */
+ int put_obj_init(const rgw_user& uid, rgw_obj& obj, uint64_t obj_size,
+ map<string, bufferlist>& attrs, RGWRESTStreamWriteRequest **req);
+ int complete_request(RGWRESTStreamWriteRequest *req, string& etag, ceph::real_time *mtime);
+
+ int get_obj(const rgw_user& uid, req_info *info /* optional */, rgw_obj& obj,
+ const ceph::real_time *mod_ptr, const ceph::real_time *unmod_ptr,
+ uint32_t mod_zone_id, uint64_t mod_pg_ver,
+ bool prepend_metadata, bool get_op, bool rgwx_stat, bool sync_manifest,
+ bool skip_decrypt, RGWGetDataCB *cb, RGWRESTStreamRWRequest **req);
+ int complete_request(RGWRESTStreamRWRequest *req, string& etag, ceph::real_time *mtime, uint64_t *psize, map<string, string>& attrs);
+
+ int get_resource(const string& resource,
+ param_vec_t *extra_params,
+ map<string, string>* extra_headers,
+ bufferlist& bl,
+ bufferlist *send_data = nullptr,
+ RGWHTTPManager *mgr = nullptr);
+
+ template <class T>
+ int get_json_resource(const string& resource, param_vec_t *params, bufferlist *in_data, T& t);
+ template <class T>
+ int get_json_resource(const string& resource, param_vec_t *params, T& t);
+ template <class T>
+ int get_json_resource(const string& resource, const rgw_http_param_pair *pp, T& t);
+};
+
+
+template<class T>
+int RGWRESTConn::get_json_resource(const string& resource, param_vec_t *params, bufferlist *in_data, T& t)
+{
+ bufferlist bl;
+ int ret = get_resource(resource, params, nullptr, bl, in_data);
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = parse_decode_json(cct, t, bl);
+ if (ret < 0) {
+ return ret;
+ }
+
+ return 0;
+}
+
+template<class T>
+int RGWRESTConn::get_json_resource(const string& resource, param_vec_t *params, T& t)
+{
+ return get_json_resource(resource, params, nullptr, t);
+}
+
+template<class T>
+int RGWRESTConn::get_json_resource(const string& resource, const rgw_http_param_pair *pp, T& t)
+{
+ param_vec_t params = make_param_list(pp);
+ return get_json_resource(resource, ¶ms, t);
+}
+
+class RGWStreamIntoBufferlist : public RGWGetDataCB {
+ bufferlist& bl;
+public:
+ RGWStreamIntoBufferlist(bufferlist& _bl) : bl(_bl) {}
+ int handle_data(bufferlist& inbl, off_t bl_ofs, off_t bl_len) override {
+ bl.claim_append(inbl);
+ return bl_len;
+ }
+};
+
+class RGWRESTReadResource : public RefCountedObject {
+ CephContext *cct;
+ RGWRESTConn *conn;
+ string resource;
+ param_vec_t params;
+ map<string, string> headers;
+ bufferlist bl;
+ RGWStreamIntoBufferlist cb;
+
+ RGWHTTPManager *mgr;
+ RGWRESTStreamReadRequest req;
+
+ void init_common(param_vec_t *extra_headers);
+
+public:
+ RGWRESTReadResource(RGWRESTConn *_conn,
+ const string& _resource,
+ const rgw_http_param_pair *pp,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr);
+
+ RGWRESTReadResource(RGWRESTConn *_conn,
+ const string& _resource,
+ param_vec_t& _params,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr);
+
+ void set_user_info(void *user_info) {
+ req.set_user_info(user_info);
+ }
+ void *get_user_info() {
+ return req.get_user_info();
+ }
+
+ template <class T>
+ int decode_resource(T *dest);
+
+ int read();
+
+ int aio_read();
+
+ string to_str() {
+ return req.to_str();
+ }
+
+ int get_http_status() {
+ return req.get_http_status();
+ }
+
+ int wait_bl(bufferlist *pbl) {
+ int ret = req.wait();
+ if (ret < 0) {
+ return ret;
+ }
+
+ if (req.get_status() < 0) {
+ return req.get_status();
+ }
+ *pbl = bl;
+ return 0;
+ }
+
+ template <class T>
+ int wait(T *dest);
+
+ template <class T>
+ int fetch(T *dest);
+};
+
+
+template <class T>
+int RGWRESTReadResource::decode_resource(T *dest)
+{
+ int ret = req.get_status();
+ if (ret < 0) {
+ return ret;
+ }
+ ret = parse_decode_json(cct, *dest, bl);
+ if (ret < 0) {
+ return ret;
+ }
+ return 0;
+}
+
+template <class T>
+int RGWRESTReadResource::fetch(T *dest)
+{
+ int ret = read();
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = decode_resource(dest);
+ if (ret < 0) {
+ return ret;
+ }
+ return 0;
+}
+
+template <class T>
+int RGWRESTReadResource::wait(T *dest)
+{
+ int ret = req.wait();
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = decode_resource(dest);
+ if (ret < 0) {
+ return ret;
+ }
+ return 0;
+}
+
+class RGWRESTSendResource : public RefCountedObject {
+ CephContext *cct;
+ RGWRESTConn *conn;
+ string method;
+ string resource;
+ param_vec_t params;
+ map<string, string> headers;
+ bufferlist bl;
+ RGWStreamIntoBufferlist cb;
+
+ RGWHTTPManager *mgr;
+ RGWRESTStreamRWRequest req;
+
+ void init_common(param_vec_t *extra_headers);
+
+public:
+ RGWRESTSendResource(RGWRESTConn *_conn,
+ const string& _method,
+ const string& _resource,
+ const rgw_http_param_pair *pp,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr);
+
+ RGWRESTSendResource(RGWRESTConn *_conn,
+ const string& _method,
+ const string& _resource,
+ param_vec_t& params,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr);
+
+ void set_user_info(void *user_info) {
+ req.set_user_info(user_info);
+ }
+ void *get_user_info() {
+ return req.get_user_info();
+ }
+
+ template <class T>
+ int decode_resource(T *dest);
+
+ int send(bufferlist& bl);
+
+ int aio_send(bufferlist& bl);
+
+ string to_str() {
+ return req.to_str();
+ }
+
+ int get_http_status() {
+ return req.get_http_status();
+ }
+
+ int wait_bl(bufferlist *pbl) {
+ int ret = req.wait();
+ if (ret < 0) {
+ return ret;
+ }
+
+ if (req.get_status() < 0) {
+ return req.get_status();
+ }
+ *pbl = bl;
+ return 0;
+ }
+
+ template <class T>
+ int wait(T *dest);
+};
+
+template <class T>
+int RGWRESTSendResource::decode_resource(T *dest)
+{
+ int ret = req.get_status();
+ if (ret < 0) {
+ return ret;
+ }
+ ret = parse_decode_json(cct, *dest, bl);
+ if (ret < 0) {
+ return ret;
+ }
+ return 0;
+}
+
+template <class T>
+int RGWRESTSendResource::wait(T *dest)
+{
+ int ret = req.wait();
+ if (ret < 0) {
+ return ret;
+ }
+
+ ret = decode_resource(dest);
+ if (ret < 0) {
+ return ret;
+ }
+ return 0;
+}
+
+class RGWRESTPostResource : public RGWRESTSendResource {
+public:
+ RGWRESTPostResource(RGWRESTConn *_conn,
+ const string& _resource,
+ const rgw_http_param_pair *pp,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "POST", _resource,
+ pp, extra_headers, _mgr) {}
+
+ RGWRESTPostResource(RGWRESTConn *_conn,
+ const string& _resource,
+ param_vec_t& params,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "POST", _resource,
+ params, extra_headers, _mgr) {}
+
+};
+
+class RGWRESTPutResource : public RGWRESTSendResource {
+public:
+ RGWRESTPutResource(RGWRESTConn *_conn,
+ const string& _resource,
+ const rgw_http_param_pair *pp,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "PUT", _resource,
+ pp, extra_headers, _mgr) {}
+
+ RGWRESTPutResource(RGWRESTConn *_conn,
+ const string& _resource,
+ param_vec_t& params,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "PUT", _resource,
+ params, extra_headers, _mgr) {}
+
+};
+
+class RGWRESTDeleteResource : public RGWRESTSendResource {
+public:
+ RGWRESTDeleteResource(RGWRESTConn *_conn,
+ const string& _resource,
+ const rgw_http_param_pair *pp,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "DELETE", _resource,
+ pp, extra_headers, _mgr) {}
+
+ RGWRESTDeleteResource(RGWRESTConn *_conn,
+ const string& _resource,
+ param_vec_t& params,
+ param_vec_t *extra_headers,
+ RGWHTTPManager *_mgr) : RGWRESTSendResource(_conn, "DELETE", _resource,
+ params, extra_headers, _mgr) {}
+
+};
+
+
+
+#endif
Code Review / stor4nfv.git / blobdiff