--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include "rgw_common.h"
+#include "rgw_rest_client.h"
+#include "rgw_auth_s3.h"
+#include "rgw_http_errors.h"
+#include "rgw_rados.h"
+
+#include "common/ceph_crypto_cms.h"
+#include "common/armor.h"
+#include "common/strtol.h"
+#include "include/str_list.h"
+#include "rgw_crypt_sanitize.h"
+
+#define dout_context g_ceph_context
+#define dout_subsys ceph_subsys_rgw
+
+int RGWRESTSimpleRequest::get_status()
+{
+ int retcode = get_req_retcode();
+ if (retcode < 0) {
+ return retcode;
+ }
+ return status;
+}
+
+int RGWRESTSimpleRequest::handle_header(const string& name, const string& val)
+{
+ if (name == "CONTENT_LENGTH") {
+ string err;
+ long len = strict_strtol(val.c_str(), 10, &err);
+ if (!err.empty()) {
+ ldout(cct, 0) << "ERROR: failed converting content length (" << val << ") to int " << dendl;
+ return -EINVAL;
+ }
+
+ max_response = len;
+ }
+
+ return 0;
+}
+
+int RGWRESTSimpleRequest::receive_header(void *ptr, size_t len)
+{
+ char line[len + 1];
+
+ char *s = (char *)ptr, *end = (char *)ptr + len;
+ char *p = line;
+ ldout(cct, 10) << "receive_http_header" << dendl;
+
+ while (s != end) {
+ if (*s == '\r') {
+ s++;
+ continue;
+ }
+ if (*s == '\n') {
+ *p = '\0';
+ ldout(cct, 10) << "received header:" << line << dendl;
+ // TODO: fill whatever data required here
+ char *l = line;
+ char *tok = strsep(&l, " \t:");
+ if (tok && l) {
+ while (*l == ' ')
+ l++;
+
+ if (strcmp(tok, "HTTP") == 0 || strncmp(tok, "HTTP/", 5) == 0) {
+ http_status = atoi(l);
+ if (http_status == 100) /* 100-continue response */
+ continue;
+ status = rgw_http_error_to_errno(http_status);
+ } else {
+ /* convert header field name to upper case */
+ char *src = tok;
+ char buf[len + 1];
+ size_t i;
+ for (i = 0; i < len && *src; ++i, ++src) {
+ switch (*src) {
+ case '-':
+ buf[i] = '_';
+ break;
+ default:
+ buf[i] = toupper(*src);
+ }
+ }
+ buf[i] = '\0';
+ out_headers[buf] = l;
+ int r = handle_header(buf, l);
+ if (r < 0)
+ return r;
+ }
+ }
+ }
+ if (s != end)
+ *p++ = *s++;
+ }
+ return 0;
+}
+
+static void get_new_date_str(string& date_str)
+{
+ date_str = rgw_to_asctime(ceph_clock_now());
+}
+
+int RGWRESTSimpleRequest::execute(RGWAccessKey& key, const char *method, const char *resource)
+{
+ string new_url = url;
+ string new_resource = resource;
+
+ if (new_url[new_url.size() - 1] == '/' && resource[0] == '/') {
+ new_url = new_url.substr(0, new_url.size() - 1);
+ } else if (resource[0] != '/') {
+ new_resource = "/";
+ new_resource.append(resource);
+ }
+ new_url.append(new_resource);
+
+ string date_str;
+ get_new_date_str(date_str);
+ headers.push_back(pair<string, string>("HTTP_DATE", date_str));
+
+ string canonical_header;
+ map<string, string> meta_map;
+ map<string, string> sub_resources;
+ rgw_create_s3_canonical_header(method, NULL, NULL, date_str.c_str(),
+ meta_map, new_url.c_str(), sub_resources,
+ canonical_header);
+
+ string digest;
+ try {
+ digest = rgw::auth::s3::get_v2_signature(cct, key.key, canonical_header);
+ } catch (int ret) {
+ return ret;
+ }
+
+ string auth_hdr = "AWS " + key.id + ":" + digest;
+
+ ldout(cct, 15) << "generated auth header: " << auth_hdr << dendl;
+
+ headers.push_back(pair<string, string>("AUTHORIZATION", auth_hdr));
+ int r = process(method, new_url.c_str());
+ if (r < 0)
+ return r;
+
+ return status;
+}
+
+int RGWRESTSimpleRequest::send_data(void *ptr, size_t len)
+{
+ if (!send_iter)
+ return 0;
+
+ if (len > send_iter->get_remaining())
+ len = send_iter->get_remaining();
+
+ send_iter->copy(len, (char *)ptr);
+
+ return len;
+}
+
+int RGWRESTSimpleRequest::receive_data(void *ptr, size_t len)
+{
+ size_t cp_len, left_len;
+
+ left_len = max_response > response.length() ? (max_response - response.length()) : 0;
+ if (left_len == 0)
+ return 0; /* don't read extra data */
+
+ cp_len = (len > left_len) ? left_len : len;
+ bufferptr p((char *)ptr, cp_len);
+
+ response.append(p);
+
+ return 0;
+
+}
+
+void RGWRESTSimpleRequest::append_param(string& dest, const string& name, const string& val)
+{
+ if (dest.empty()) {
+ dest.append("?");
+ } else {
+ dest.append("&");
+ }
+ string url_name;
+ url_encode(name, url_name);
+ dest.append(url_name);
+
+ if (!val.empty()) {
+ string url_val;
+ url_encode(val, url_val);
+ dest.append("=");
+ dest.append(url_val);
+ }
+}
+
+void RGWRESTSimpleRequest::get_params_str(map<string, string>& extra_args, string& dest)
+{
+ map<string, string>::iterator miter;
+ for (miter = extra_args.begin(); miter != extra_args.end(); ++miter) {
+ append_param(dest, miter->first, miter->second);
+ }
+ param_vec_t::iterator iter;
+ for (iter = params.begin(); iter != params.end(); ++iter) {
+ append_param(dest, iter->first, iter->second);
+ }
+}
+
+int RGWRESTSimpleRequest::sign_request(RGWAccessKey& key, RGWEnv& env, req_info& info)
+{
+ /* don't sign if no key is provided */
+ if (key.key.empty()) {
+ return 0;
+ }
+
+ if (cct->_conf->subsys.should_gather(ceph_subsys_rgw, 20)) {
+ for (const auto& i: env.get_map()) {
+ ldout(cct, 20) << "> " << i.first << " -> " << rgw::crypt_sanitize::x_meta_map{i.first, i.second} << dendl;
+ }
+ }
+
+ string canonical_header;
+ if (!rgw_create_s3_canonical_header(info, NULL, canonical_header, false)) {
+ ldout(cct, 0) << "failed to create canonical s3 header" << dendl;
+ return -EINVAL;
+ }
+
+ ldout(cct, 10) << "generated canonical header: " << canonical_header << dendl;
+
+ string digest;
+ try {
+ digest = rgw::auth::s3::get_v2_signature(cct, key.key, canonical_header);
+ } catch (int ret) {
+ return ret;
+ }
+
+ string auth_hdr = "AWS " + key.id + ":" + digest;
+ ldout(cct, 15) << "generated auth header: " << auth_hdr << dendl;
+
+ env.set("AUTHORIZATION", auth_hdr);
+
+ return 0;
+}
+
+int RGWRESTSimpleRequest::forward_request(RGWAccessKey& key, req_info& info, size_t max_response, bufferlist *inbl, bufferlist *outbl)
+{
+
+ string date_str;
+ get_new_date_str(date_str);
+
+ RGWEnv new_env;
+ req_info new_info(cct, &new_env);
+ new_info.rebuild_from(info);
+
+ new_env.set("HTTP_DATE", date_str.c_str());
+
+ int ret = sign_request(key, new_env, new_info);
+ if (ret < 0) {
+ ldout(cct, 0) << "ERROR: failed to sign request" << dendl;
+ return ret;
+ }
+
+ for (const auto& kv: new_env.get_map()) {
+ headers.emplace_back(kv);
+ }
+
+ map<string, string>& meta_map = new_info.x_meta_map;
+ for (const auto& kv: meta_map) {
+ headers.emplace_back(kv);
+ }
+
+ string params_str;
+ get_params_str(info.args.get_params(), params_str);
+
+ string new_url = url;
+ string& resource = new_info.request_uri;
+ string new_resource = resource;
+ if (new_url[new_url.size() - 1] == '/' && resource[0] == '/') {
+ new_url = new_url.substr(0, new_url.size() - 1);
+ } else if (resource[0] != '/') {
+ new_resource = "/";
+ new_resource.append(resource);
+ }
+ new_url.append(new_resource + params_str);
+
+ bufferlist::iterator bliter;
+
+ if (inbl) {
+ bliter = inbl->begin();
+ send_iter = &bliter;
+
+ set_send_length(inbl->length());
+ }
+
+ int r = process(new_info.method, new_url.c_str());
+ if (r < 0){
+ if (r == -EINVAL){
+ // curl_easy has errored, generally means the service is not available
+ r = -ERR_SERVICE_UNAVAILABLE;
+ }
+ return r;
+ }
+
+ response.append((char)0); /* NULL terminate response */
+
+ if (outbl) {
+ outbl->claim(response);
+ }
+
+ return status;
+}
+
+class RGWRESTStreamOutCB : public RGWGetDataCB {
+ RGWRESTStreamWriteRequest *req;
+public:
+ explicit RGWRESTStreamOutCB(RGWRESTStreamWriteRequest *_req) : req(_req) {}
+ int handle_data(bufferlist& bl, off_t bl_ofs, off_t bl_len) override; /* callback for object iteration when sending data */
+};
+
+int RGWRESTStreamOutCB::handle_data(bufferlist& bl, off_t bl_ofs, off_t bl_len)
+{
+ dout(20) << "RGWRESTStreamOutCB::handle_data bl.length()=" << bl.length() << " bl_ofs=" << bl_ofs << " bl_len=" << bl_len << dendl;
+ if (!bl_ofs && bl_len == bl.length()) {
+ return req->add_output_data(bl);
+ }
+
+ bufferptr bp(bl.c_str() + bl_ofs, bl_len);
+ bufferlist new_bl;
+ new_bl.push_back(bp);
+
+ return req->add_output_data(new_bl);
+}
+
+RGWRESTStreamWriteRequest::~RGWRESTStreamWriteRequest()
+{
+ delete cb;
+}
+
+int RGWRESTStreamWriteRequest::add_output_data(bufferlist& bl)
+{
+ lock.Lock();
+ if (status < 0) {
+ int ret = status;
+ lock.Unlock();
+ return ret;
+ }
+ pending_send.push_back(bl);
+ lock.Unlock();
+
+ bool done;
+ return http_manager.process_requests(false, &done);
+}
+
+static void grants_by_type_add_one_grant(map<int, string>& grants_by_type, int perm, ACLGrant& grant)
+{
+ string& s = grants_by_type[perm];
+
+ if (!s.empty())
+ s.append(", ");
+
+ string id_type_str;
+ ACLGranteeType& type = grant.get_type();
+ switch (type.get_type()) {
+ case ACL_TYPE_GROUP:
+ id_type_str = "uri";
+ break;
+ case ACL_TYPE_EMAIL_USER:
+ id_type_str = "emailAddress";
+ break;
+ default:
+ id_type_str = "id";
+ }
+ rgw_user id;
+ grant.get_id(id);
+ s.append(id_type_str + "=\"" + id.to_str() + "\"");
+}
+
+struct grant_type_to_header {
+ int type;
+ const char *header;
+};
+
+struct grant_type_to_header grants_headers_def[] = {
+ { RGW_PERM_FULL_CONTROL, "x-amz-grant-full-control"},
+ { RGW_PERM_READ, "x-amz-grant-read"},
+ { RGW_PERM_WRITE, "x-amz-grant-write"},
+ { RGW_PERM_READ_ACP, "x-amz-grant-read-acp"},
+ { RGW_PERM_WRITE_ACP, "x-amz-grant-write-acp"},
+ { 0, NULL}
+};
+
+static bool grants_by_type_check_perm(map<int, string>& grants_by_type, int perm, ACLGrant& grant, int check_perm)
+{
+ if ((perm & check_perm) == check_perm) {
+ grants_by_type_add_one_grant(grants_by_type, check_perm, grant);
+ return true;
+ }
+ return false;
+}
+
+static void grants_by_type_add_perm(map<int, string>& grants_by_type, int perm, ACLGrant& grant)
+{
+ struct grant_type_to_header *t;
+
+ for (t = grants_headers_def; t->header; t++) {
+ if (grants_by_type_check_perm(grants_by_type, perm, grant, t->type))
+ return;
+ }
+}
+
+static void add_grants_headers(map<int, string>& grants, RGWEnv& env, map<string, string>& meta_map)
+{
+ struct grant_type_to_header *t;
+
+ for (t = grants_headers_def; t->header; t++) {
+ map<int, string>::iterator iter = grants.find(t->type);
+ if (iter != grants.end()) {
+ env.set(t->header,iter->second);
+ meta_map[t->header] = iter->second;
+ }
+ }
+}
+
+int RGWRESTStreamWriteRequest::put_obj_init(RGWAccessKey& key, rgw_obj& obj, uint64_t obj_size, map<string, bufferlist>& attrs)
+{
+ string resource = obj.bucket.name + "/" + obj.get_oid();
+ string new_url = url;
+ if (new_url[new_url.size() - 1] != '/')
+ new_url.append("/");
+
+ string date_str;
+ get_new_date_str(date_str);
+
+ RGWEnv new_env;
+ req_info new_info(cct, &new_env);
+
+ string params_str;
+ map<string, string>& args = new_info.args.get_params();
+ get_params_str(args, params_str);
+
+ new_url.append(resource + params_str);
+
+ new_env.set("HTTP_DATE", date_str.c_str());
+
+ new_info.method = "PUT";
+
+ new_info.script_uri = "/";
+ new_info.script_uri.append(resource);
+ new_info.request_uri = new_info.script_uri;
+
+ /* merge send headers */
+ for (auto& attr: attrs) {
+ bufferlist& bl = attr.second;
+ const string& name = attr.first;
+ string val = bl.c_str();
+ if (name.compare(0, sizeof(RGW_ATTR_META_PREFIX) - 1, RGW_ATTR_META_PREFIX) == 0) {
+ string header_name = RGW_AMZ_META_PREFIX;
+ header_name.append(name.substr(sizeof(RGW_ATTR_META_PREFIX) - 1));
+ new_env.set(header_name, val);
+ new_info.x_meta_map[header_name] = val;
+ }
+ }
+ RGWAccessControlPolicy policy;
+ int ret = rgw_policy_from_attrset(cct, attrs, &policy);
+ if (ret < 0) {
+ ldout(cct, 0) << "ERROR: couldn't get policy ret=" << ret << dendl;
+ return ret;
+ }
+
+ /* update acl headers */
+ RGWAccessControlList& acl = policy.get_acl();
+ multimap<string, ACLGrant>& grant_map = acl.get_grant_map();
+ multimap<string, ACLGrant>::iterator giter;
+ map<int, string> grants_by_type;
+ for (giter = grant_map.begin(); giter != grant_map.end(); ++giter) {
+ ACLGrant& grant = giter->second;
+ ACLPermission& perm = grant.get_permission();
+ grants_by_type_add_perm(grants_by_type, perm.get_permissions(), grant);
+ }
+ add_grants_headers(grants_by_type, new_env, new_info.x_meta_map);
+ ret = sign_request(key, new_env, new_info);
+ if (ret < 0) {
+ ldout(cct, 0) << "ERROR: failed to sign request" << dendl;
+ return ret;
+ }
+
+ for (const auto& kv: new_env.get_map()) {
+ headers.emplace_back(kv);
+ }
+
+ cb = new RGWRESTStreamOutCB(this);
+
+ set_send_length(obj_size);
+
+ int r = http_manager.add_request(this, new_info.method, new_url.c_str());
+ if (r < 0)
+ return r;
+
+ return 0;
+}
+
+int RGWRESTStreamWriteRequest::send_data(void *ptr, size_t len)
+{
+ uint64_t sent = 0;
+
+ dout(20) << "RGWRESTStreamWriteRequest::send_data()" << dendl;
+ lock.Lock();
+ if (pending_send.empty() || status < 0) {
+ lock.Unlock();
+ return status;
+ }
+
+ list<bufferlist>::iterator iter = pending_send.begin();
+ while (iter != pending_send.end() && len > 0) {
+ bufferlist& bl = *iter;
+
+ list<bufferlist>::iterator next_iter = iter;
+ ++next_iter;
+ lock.Unlock();
+
+ uint64_t send_len = min(len, (size_t)bl.length());
+
+ memcpy(ptr, bl.c_str(), send_len);
+
+ ptr = (char *)ptr + send_len;
+ len -= send_len;
+ sent += send_len;
+
+ lock.Lock();
+
+ bufferlist new_bl;
+ if (bl.length() > send_len) {
+ bufferptr bp(bl.c_str() + send_len, bl.length() - send_len);
+ new_bl.append(bp);
+ }
+ pending_send.pop_front(); /* need to do this after we copy data from bl */
+ if (new_bl.length()) {
+ pending_send.push_front(new_bl);
+ }
+ iter = next_iter;
+ }
+ lock.Unlock();
+
+ return sent;
+}
+
+
+void set_str_from_headers(map<string, string>& out_headers, const string& header_name, string& str)
+{
+ map<string, string>::iterator iter = out_headers.find(header_name);
+ if (iter != out_headers.end()) {
+ str = iter->second;
+ } else {
+ str.clear();
+ }
+}
+
+static int parse_rgwx_mtime(CephContext *cct, const string& s, ceph::real_time *rt)
+{
+ string err;
+ vector<string> vec;
+
+ get_str_vec(s, ".", vec);
+
+ if (vec.empty()) {
+ return -EINVAL;
+ }
+
+ long secs = strict_strtol(vec[0].c_str(), 10, &err);
+ long nsecs = 0;
+ if (!err.empty()) {
+ ldout(cct, 0) << "ERROR: failed converting mtime (" << s << ") to real_time " << dendl;
+ return -EINVAL;
+ }
+
+ if (vec.size() > 1) {
+ nsecs = strict_strtol(vec[1].c_str(), 10, &err);
+ if (!err.empty()) {
+ ldout(cct, 0) << "ERROR: failed converting mtime (" << s << ") to real_time " << dendl;
+ return -EINVAL;
+ }
+ }
+
+ *rt = utime_t(secs, nsecs).to_real_time();
+
+ return 0;
+}
+
+int RGWRESTStreamWriteRequest::complete(string& etag, real_time *mtime)
+{
+ int ret = http_manager.complete_requests();
+ if (ret < 0)
+ return ret;
+
+ set_str_from_headers(out_headers, "ETAG", etag);
+
+ if (mtime) {
+ string mtime_str;
+ set_str_from_headers(out_headers, "RGWX_MTIME", mtime_str);
+
+ ret = parse_rgwx_mtime(cct, mtime_str, mtime);
+ if (ret < 0) {
+ return ret;
+ }
+ }
+ return status;
+}
+
+int RGWRESTStreamRWRequest::send_request(RGWAccessKey& key, map<string, string>& extra_headers, rgw_obj& obj, RGWHTTPManager *mgr)
+{
+ string urlsafe_bucket, urlsafe_object;
+ url_encode(obj.bucket.get_key(':', 0), urlsafe_bucket);
+ url_encode(obj.key.name, urlsafe_object);
+ string resource = urlsafe_bucket + "/" + urlsafe_object;
+
+ return send_request(&key, extra_headers, resource, nullptr, mgr);
+}
+
+int RGWRESTStreamRWRequest::send_request(RGWAccessKey *key, map<string, string>& extra_headers, const string& resource,
+ bufferlist *send_data, RGWHTTPManager *mgr)
+{
+ string new_url = url;
+ if (new_url[new_url.size() - 1] != '/')
+ new_url.append("/");
+
+ string date_str;
+ get_new_date_str(date_str);
+
+ RGWEnv new_env;
+ req_info new_info(cct, &new_env);
+
+ string params_str;
+ map<string, string>& args = new_info.args.get_params();
+ get_params_str(args, params_str);
+
+ /* merge params with extra args so that we can sign correctly */
+ for (param_vec_t::iterator iter = params.begin(); iter != params.end(); ++iter) {
+ new_info.args.append(iter->first, iter->second);
+ }
+
+ string new_resource;
+ if (resource[0] == '/') {
+ new_resource = resource.substr(1);
+ } else {
+ new_resource = resource;
+ }
+
+ new_url.append(new_resource + params_str);
+
+ new_env.set("HTTP_DATE", date_str.c_str());
+
+ for (map<string, string>::iterator iter = extra_headers.begin();
+ iter != extra_headers.end(); ++iter) {
+ new_env.set(iter->first.c_str(), iter->second.c_str());
+ }
+
+ new_info.method = method;
+
+ new_info.script_uri = "/";
+ new_info.script_uri.append(new_resource);
+ new_info.request_uri = new_info.script_uri;
+
+ new_info.init_meta_info(NULL);
+
+ if (key) {
+ int ret = sign_request(*key, new_env, new_info);
+ if (ret < 0) {
+ ldout(cct, 0) << "ERROR: failed to sign request" << dendl;
+ return ret;
+ }
+ }
+
+ for (const auto& kv: new_env.get_map()) {
+ headers.emplace_back(kv);
+ }
+
+ bool send_data_hint = false;
+ if (send_data) {
+ outbl.claim(*send_data);
+ send_data_hint = true;
+ }
+
+ RGWHTTPManager *pmanager = &http_manager;
+ if (mgr) {
+ pmanager = mgr;
+ }
+
+ int r = pmanager->add_request(this, new_info.method, new_url.c_str(), send_data_hint);
+ if (r < 0)
+ return r;
+
+ if (!mgr) {
+ r = pmanager->complete_requests();
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+int RGWRESTStreamRWRequest::complete_request(string& etag, real_time *mtime, uint64_t *psize, map<string, string>& attrs)
+{
+ set_str_from_headers(out_headers, "ETAG", etag);
+ if (status >= 0) {
+ if (mtime) {
+ string mtime_str;
+ set_str_from_headers(out_headers, "RGWX_MTIME", mtime_str);
+ if (!mtime_str.empty()) {
+ int ret = parse_rgwx_mtime(cct, mtime_str, mtime);
+ if (ret < 0) {
+ return ret;
+ }
+ } else {
+ *mtime = real_time();
+ }
+ }
+ if (psize) {
+ string size_str;
+ set_str_from_headers(out_headers, "RGWX_OBJECT_SIZE", size_str);
+ string err;
+ *psize = strict_strtoll(size_str.c_str(), 10, &err);
+ if (!err.empty()) {
+ ldout(cct, 0) << "ERROR: failed parsing embedded metadata object size (" << size_str << ") to int " << dendl;
+ return -EIO;
+ }
+ }
+ }
+
+ map<string, string>::iterator iter;
+ for (iter = out_headers.begin(); iter != out_headers.end(); ++iter) {
+ const string& attr_name = iter->first;
+ if (attr_name.compare(0, sizeof(RGW_HTTP_RGWX_ATTR_PREFIX) - 1, RGW_HTTP_RGWX_ATTR_PREFIX) == 0) {
+ string name = attr_name.substr(sizeof(RGW_HTTP_RGWX_ATTR_PREFIX) - 1);
+ const char *src = name.c_str();
+ char buf[name.size() + 1];
+ char *dest = buf;
+ for (; *src; ++src, ++dest) {
+ switch(*src) {
+ case '_':
+ *dest = '-';
+ break;
+ default:
+ *dest = tolower(*src);
+ }
+ }
+ *dest = '\0';
+ attrs[buf] = iter->second;
+ }
+ }
+ return status;
+}
+
+int RGWRESTStreamRWRequest::handle_header(const string& name, const string& val)
+{
+ if (name == "RGWX_EMBEDDED_METADATA_LEN") {
+ string err;
+ long len = strict_strtol(val.c_str(), 10, &err);
+ if (!err.empty()) {
+ ldout(cct, 0) << "ERROR: failed converting embedded metadata len (" << val << ") to int " << dendl;
+ return -EINVAL;
+ }
+
+ cb->set_extra_data_len(len);
+ }
+ return 0;
+}
+
+int RGWRESTStreamRWRequest::receive_data(void *ptr, size_t len)
+{
+ bufferptr bp((const char *)ptr, len);
+ bufferlist bl;
+ bl.append(bp);
+ int ret = cb->handle_data(bl, ofs, len);
+ if (ret < 0)
+ return ret;
+ ofs += len;
+ return len;
+}
+
+int RGWRESTStreamRWRequest::send_data(void *ptr, size_t len)
+{
+ if (outbl.length() == 0) {
+ return 0;
+ }
+
+ uint64_t send_size = min(len, (size_t)(outbl.length() - write_ofs));
+ if (send_size > 0) {
+ memcpy(ptr, outbl.c_str() + write_ofs, send_size);
+ write_ofs += send_size;
+ }
+ return send_size;
+}
+
+class StreamIntoBufferlist : public RGWGetDataCB {
+ bufferlist& bl;
+public:
+ StreamIntoBufferlist(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;
+ }
+};
+
Code Review / stor4nfv.git / blobdiff