diff options
Diffstat (limited to 'src/rgw/rgw_rest_swift.cc')
| -rw-r--r-- | src/rgw/rgw_rest_swift.cc | 3127 |
1 files changed, 3127 insertions, 0 deletions
diff --git a/src/rgw/rgw_rest_swift.cc b/src/rgw/rgw_rest_swift.cc new file mode 100644 index 000000000..657fa54ee --- /dev/null +++ b/src/rgw/rgw_rest_swift.cc @@ -0,0 +1,3127 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab ft=cpp + +#include <boost/algorithm/string/predicate.hpp> +#include <boost/format.hpp> +#include <boost/optional.hpp> +#include <boost/utility/in_place_factory.hpp> + +#include "include/ceph_assert.h" +#include "ceph_ver.h" + +#include "common/Formatter.h" +#include "common/utf8.h" +#include "common/ceph_json.h" + +#include "rgw_rest_swift.h" +#include "rgw_acl_swift.h" +#include "rgw_cors_swift.h" +#include "rgw_formats.h" +#include "rgw_client_io.h" +#include "rgw_compression.h" + +#include "rgw_auth.h" +#include "rgw_swift_auth.h" + +#include "rgw_request.h" +#include "rgw_process.h" + +#include "rgw_zone.h" +#include "rgw_sal_rados.h" + +#include "services/svc_zone.h" + +#include <array> +#include <string_view> +#include <sstream> +#include <memory> + +#define dout_context g_ceph_context +#define dout_subsys ceph_subsys_rgw + +int RGWListBuckets_ObjStore_SWIFT::get_params(optional_yield y) +{ + prefix = s->info.args.get("prefix"); + marker = s->info.args.get("marker"); + end_marker = s->info.args.get("end_marker"); + wants_reversed = s->info.args.exists("reverse"); + + if (wants_reversed) { + std::swap(marker, end_marker); + } + + std::string limit_str = s->info.args.get("limit"); + if (!limit_str.empty()) { + std::string err; + long l = strict_strtol(limit_str.c_str(), 10, &err); + if (!err.empty()) { + return -EINVAL; + } + + if (l > (long)limit_max || l < 0) { + return -ERR_PRECONDITION_FAILED; + } + + limit = (uint64_t)l; + } + + if (s->cct->_conf->rgw_swift_need_stats) { + bool stats, exists; + int r = s->info.args.get_bool("stats", &stats, &exists); + + if (r < 0) { + return r; + } + + if (exists) { + need_stats = stats; + } + } else { + need_stats = false; + } + + return 0; +} + +static void dump_account_metadata(struct req_state * const s, + const RGWUsageStats& global_stats, + const std::map<std::string, RGWUsageStats> &policies_stats, + /* const */map<string, bufferlist>& attrs, + const RGWQuotaInfo& quota, + const RGWAccessControlPolicy_SWIFTAcct &policy) +{ + /* Adding X-Timestamp to keep align with Swift API */ + dump_header(s, "X-Timestamp", ceph_clock_now()); + + dump_header(s, "X-Account-Container-Count", global_stats.buckets_count); + dump_header(s, "X-Account-Object-Count", global_stats.objects_count); + dump_header(s, "X-Account-Bytes-Used", global_stats.bytes_used); + dump_header(s, "X-Account-Bytes-Used-Actual", global_stats.bytes_used_rounded); + + for (const auto& kv : policies_stats) { + const auto& policy_name = camelcase_dash_http_attr(kv.first); + const auto& policy_stats = kv.second; + + dump_header_infixed(s, "X-Account-Storage-Policy-", policy_name, + "-Container-Count", policy_stats.buckets_count); + dump_header_infixed(s, "X-Account-Storage-Policy-", policy_name, + "-Object-Count", policy_stats.objects_count); + dump_header_infixed(s, "X-Account-Storage-Policy-", policy_name, + "-Bytes-Used", policy_stats.bytes_used); + dump_header_infixed(s, "X-Account-Storage-Policy-", policy_name, + "-Bytes-Used-Actual", policy_stats.bytes_used_rounded); + } + + /* Dump TempURL-related stuff */ + if (s->perm_mask == RGW_PERM_FULL_CONTROL) { + auto iter = s->user->get_info().temp_url_keys.find(0); + if (iter != std::end(s->user->get_info().temp_url_keys) && ! iter->second.empty()) { + dump_header(s, "X-Account-Meta-Temp-Url-Key", iter->second); + } + + iter = s->user->get_info().temp_url_keys.find(1); + if (iter != std::end(s->user->get_info().temp_url_keys) && ! iter->second.empty()) { + dump_header(s, "X-Account-Meta-Temp-Url-Key-2", iter->second); + } + } + + /* Dump quota headers. */ + if (quota.enabled) { + if (quota.max_size >= 0) { + dump_header(s, "X-Account-Meta-Quota-Bytes", quota.max_size); + } + + /* Limit on the number of objects in a given account is a RadosGW's + * extension. Swift's account quota WSGI filter doesn't support it. */ + if (quota.max_objects >= 0) { + dump_header(s, "X-Account-Meta-Quota-Count", quota.max_objects); + } + } + + /* Dump user-defined metadata items and generic attrs. */ + const size_t PREFIX_LEN = sizeof(RGW_ATTR_META_PREFIX) - 1; + map<string, bufferlist>::iterator iter; + for (iter = attrs.lower_bound(RGW_ATTR_PREFIX); iter != attrs.end(); ++iter) { + const char *name = iter->first.c_str(); + map<string, string>::const_iterator geniter = rgw_to_http_attrs.find(name); + + if (geniter != rgw_to_http_attrs.end()) { + dump_header(s, geniter->second, iter->second); + } else if (strncmp(name, RGW_ATTR_META_PREFIX, PREFIX_LEN) == 0) { + dump_header_prefixed(s, "X-Account-Meta-", + camelcase_dash_http_attr(name + PREFIX_LEN), + iter->second); + } + } + + /* Dump account ACLs */ + auto account_acls = policy.to_str(); + if (account_acls) { + dump_header(s, "X-Account-Access-Control", std::move(*account_acls)); + } +} + +void RGWListBuckets_ObjStore_SWIFT::send_response_begin(bool has_buckets) +{ + if (op_ret) { + set_req_state_err(s, op_ret); + } else if (!has_buckets && s->format == RGW_FORMAT_PLAIN) { + op_ret = STATUS_NO_CONTENT; + set_req_state_err(s, op_ret); + } + + if (! s->cct->_conf->rgw_swift_enforce_content_length) { + /* Adding account stats in the header to keep align with Swift API */ + dump_account_metadata(s, + global_stats, + policies_stats, + attrs, + s->user->get_info().user_quota, + static_cast<RGWAccessControlPolicy_SWIFTAcct&>(*s->user_acl)); + dump_errno(s); + dump_header(s, "Accept-Ranges", "bytes"); + end_header(s, NULL, NULL, NO_CONTENT_LENGTH, true); + } + + if (! op_ret) { + dump_start(s); + s->formatter->open_array_section_with_attrs("account", + FormatterAttrs("name", s->user->get_display_name().c_str(), NULL)); + + sent_data = true; + } +} + +void RGWListBuckets_ObjStore_SWIFT::handle_listing_chunk(rgw::sal::RGWBucketList&& buckets) +{ + if (wants_reversed) { + /* Just store in the reversal buffer. Its content will be handled later, + * in send_response_end(). */ + reverse_buffer.emplace(std::begin(reverse_buffer), std::move(buckets)); + } else { + return send_response_data(buckets); + } +} + +void RGWListBuckets_ObjStore_SWIFT::send_response_data(rgw::sal::RGWBucketList& buckets) +{ + if (! sent_data) { + return; + } + + /* Take care of the prefix parameter of Swift API. There is no business + * in applying the filter earlier as we really need to go through all + * entries regardless of it (the headers like X-Account-Container-Count + * aren't affected by specifying prefix). */ + const auto& m = buckets.get_buckets(); + for (auto iter = m.lower_bound(prefix); + iter != m.end() && boost::algorithm::starts_with(iter->first, prefix); + ++iter) { + dump_bucket_entry(*iter->second); + } +} + +void RGWListBuckets_ObjStore_SWIFT::dump_bucket_entry(const rgw::sal::RGWBucket& obj) +{ + s->formatter->open_object_section("container"); + s->formatter->dump_string("name", obj.get_name()); + + if (need_stats) { + s->formatter->dump_int("count", obj.get_count()); + s->formatter->dump_int("bytes", obj.get_size()); + } + + s->formatter->close_section(); + + if (! s->cct->_conf->rgw_swift_enforce_content_length) { + rgw_flush_formatter(s, s->formatter); + } +} + +void RGWListBuckets_ObjStore_SWIFT::send_response_data_reversed(rgw::sal::RGWBucketList& buckets) +{ + if (! sent_data) { + return; + } + + /* Take care of the prefix parameter of Swift API. There is no business + * in applying the filter earlier as we really need to go through all + * entries regardless of it (the headers like X-Account-Container-Count + * aren't affected by specifying prefix). */ + auto& m = buckets.get_buckets(); + + auto iter = m.rbegin(); + for (/* initialized above */; + iter != m.rend() && !boost::algorithm::starts_with(iter->first, prefix); + ++iter) { + /* NOP */; + } + + for (/* iter carried */; + iter != m.rend() && boost::algorithm::starts_with(iter->first, prefix); + ++iter) { + dump_bucket_entry(*iter->second); + } +} + +void RGWListBuckets_ObjStore_SWIFT::send_response_end() +{ + if (wants_reversed) { + for (auto& buckets : reverse_buffer) { + send_response_data_reversed(buckets); + } + } + + if (sent_data) { + s->formatter->close_section(); + } + + if (s->cct->_conf->rgw_swift_enforce_content_length) { + /* Adding account stats in the header to keep align with Swift API */ + dump_account_metadata(s, + global_stats, + policies_stats, + attrs, + s->user->get_info().user_quota, + static_cast<RGWAccessControlPolicy_SWIFTAcct&>(*s->user_acl)); + dump_errno(s); + end_header(s, nullptr, nullptr, s->formatter->get_len(), true); + } + + if (sent_data || s->cct->_conf->rgw_swift_enforce_content_length) { + rgw_flush_formatter_and_reset(s, s->formatter); + } +} + +int RGWListBucket_ObjStore_SWIFT::get_params(optional_yield y) +{ + prefix = s->info.args.get("prefix"); + marker = s->info.args.get("marker"); + end_marker = s->info.args.get("end_marker"); + max_keys = s->info.args.get("limit"); + + // non-standard + s->info.args.get_bool("allow_unordered", &allow_unordered, false); + + delimiter = s->info.args.get("delimiter"); + + op_ret = parse_max_keys(); + if (op_ret < 0) { + return op_ret; + } + // S3 behavior is to silently cap the max-keys. + // Swift behavior is to abort. + if (max > default_max) + return -ERR_PRECONDITION_FAILED; + + string path_args; + if (s->info.args.exists("path")) { // should handle empty path + path_args = s->info.args.get("path"); + if (!delimiter.empty() || !prefix.empty()) { + return -EINVAL; + } + prefix = path_args; + delimiter="/"; + + path = prefix; + if (path.size() && path[path.size() - 1] != '/') + path.append("/"); + + int len = prefix.size(); + int delim_size = delimiter.size(); + + if (len >= delim_size) { + if (prefix.substr(len - delim_size).compare(delimiter) != 0) + prefix.append(delimiter); + } + } + + return 0; +} + +static void dump_container_metadata(struct req_state *, + const rgw::sal::RGWBucket*, + const RGWQuotaInfo&, + const RGWBucketWebsiteConf&); + +void RGWListBucket_ObjStore_SWIFT::send_response() +{ + vector<rgw_bucket_dir_entry>::iterator iter = objs.begin(); + map<string, bool>::iterator pref_iter = common_prefixes.begin(); + + dump_start(s); + dump_container_metadata(s, s->bucket.get(), bucket_quota, + s->bucket->get_info().website_conf); + + s->formatter->open_array_section_with_attrs("container", + FormatterAttrs("name", + s->bucket->get_name().c_str(), + NULL)); + + while (iter != objs.end() || pref_iter != common_prefixes.end()) { + bool do_pref = false; + bool do_objs = false; + rgw_obj_key key; + if (iter != objs.end()) { + key = iter->key; + } + if (pref_iter == common_prefixes.end()) + do_objs = true; + else if (iter == objs.end()) + do_pref = true; + else if (!key.empty() && key.name.compare(pref_iter->first) == 0) { + do_objs = true; + ++pref_iter; + } else if (!key.empty() && key.name.compare(pref_iter->first) <= 0) + do_objs = true; + else + do_pref = true; + + if (do_objs && (allow_unordered || marker.empty() || marker < key)) { + if (key.name.compare(path) == 0) + goto next; + + s->formatter->open_object_section("object"); + s->formatter->dump_string("name", key.name); + s->formatter->dump_string("hash", iter->meta.etag); + s->formatter->dump_int("bytes", iter->meta.accounted_size); + if (!iter->meta.user_data.empty()) + s->formatter->dump_string("user_custom_data", iter->meta.user_data); + string single_content_type = iter->meta.content_type; + if (iter->meta.content_type.size()) { + // content type might hold multiple values, just dump the last one + ssize_t pos = iter->meta.content_type.rfind(','); + if (pos > 0) { + ++pos; + while (single_content_type[pos] == ' ') + ++pos; + single_content_type = single_content_type.substr(pos); + } + s->formatter->dump_string("content_type", single_content_type); + } + dump_time(s, "last_modified", &iter->meta.mtime); + s->formatter->close_section(); + } + + if (do_pref && (marker.empty() || pref_iter->first.compare(marker.name) > 0)) { + const string& name = pref_iter->first; + if (name.compare(delimiter) == 0) + goto next; + + s->formatter->open_object_section_with_attrs("subdir", FormatterAttrs("name", name.c_str(), NULL)); + + /* swift is a bit inconsistent here */ + switch (s->format) { + case RGW_FORMAT_XML: + s->formatter->dump_string("name", name); + break; + default: + s->formatter->dump_string("subdir", name); + } + s->formatter->close_section(); + } +next: + if (do_objs) + ++iter; + else + ++pref_iter; + } + + s->formatter->close_section(); + + int64_t content_len = 0; + if (! op_ret) { + content_len = s->formatter->get_len(); + if (content_len == 0) { + op_ret = STATUS_NO_CONTENT; + } + } else if (op_ret > 0) { + op_ret = 0; + } + + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this, NULL, content_len); + if (op_ret < 0) { + return; + } + + rgw_flush_formatter_and_reset(s, s->formatter); +} // RGWListBucket_ObjStore_SWIFT::send_response + +static void dump_container_metadata(struct req_state *s, + const rgw::sal::RGWBucket* bucket, + const RGWQuotaInfo& quota, + const RGWBucketWebsiteConf& ws_conf) +{ + /* Adding X-Timestamp to keep align with Swift API */ + dump_header(s, "X-Timestamp", utime_t(s->bucket->get_info().creation_time)); + + dump_header(s, "X-Container-Object-Count", bucket->get_count()); + dump_header(s, "X-Container-Bytes-Used", bucket->get_size()); + dump_header(s, "X-Container-Bytes-Used-Actual", bucket->get_size_rounded()); + + if (rgw::sal::RGWObject::empty(s->object.get())) { + auto swift_policy = \ + static_cast<RGWAccessControlPolicy_SWIFT*>(s->bucket_acl.get()); + std::string read_acl, write_acl; + swift_policy->to_str(read_acl, write_acl); + + if (read_acl.size()) { + dump_header(s, "X-Container-Read", read_acl); + } + if (write_acl.size()) { + dump_header(s, "X-Container-Write", write_acl); + } + if (!s->bucket->get_placement_rule().name.empty()) { + dump_header(s, "X-Storage-Policy", s->bucket->get_placement_rule().name); + } + dump_header(s, "X-Storage-Class", s->bucket->get_placement_rule().get_storage_class()); + + /* Dump user-defined metadata items and generic attrs. */ + const size_t PREFIX_LEN = sizeof(RGW_ATTR_META_PREFIX) - 1; + map<string, bufferlist>::iterator iter; + for (iter = s->bucket_attrs.lower_bound(RGW_ATTR_PREFIX); + iter != s->bucket_attrs.end(); + ++iter) { + const char *name = iter->first.c_str(); + map<string, string>::const_iterator geniter = rgw_to_http_attrs.find(name); + + if (geniter != rgw_to_http_attrs.end()) { + dump_header(s, geniter->second, iter->second); + } else if (strncmp(name, RGW_ATTR_META_PREFIX, PREFIX_LEN) == 0) { + dump_header_prefixed(s, "X-Container-Meta-", + camelcase_dash_http_attr(name + PREFIX_LEN), + iter->second); + } + } + } + + /* Dump container versioning info. */ + if (! s->bucket->get_info().swift_ver_location.empty()) { + dump_header(s, "X-Versions-Location", + url_encode(s->bucket->get_info().swift_ver_location)); + } + + /* Dump quota headers. */ + if (quota.enabled) { + if (quota.max_size >= 0) { + dump_header(s, "X-Container-Meta-Quota-Bytes", quota.max_size); + } + + if (quota.max_objects >= 0) { + dump_header(s, "X-Container-Meta-Quota-Count", quota.max_objects); + } + } + + /* Dump Static Website headers. */ + if (! ws_conf.index_doc_suffix.empty()) { + dump_header(s, "X-Container-Meta-Web-Index", ws_conf.index_doc_suffix); + } + + if (! ws_conf.error_doc.empty()) { + dump_header(s, "X-Container-Meta-Web-Error", ws_conf.error_doc); + } + + if (! ws_conf.subdir_marker.empty()) { + dump_header(s, "X-Container-Meta-Web-Directory-Type", + ws_conf.subdir_marker); + } + + if (! ws_conf.listing_css_doc.empty()) { + dump_header(s, "X-Container-Meta-Web-Listings-CSS", + ws_conf.listing_css_doc); + } + + if (ws_conf.listing_enabled) { + dump_header(s, "X-Container-Meta-Web-Listings", "true"); + } + + /* Dump bucket's modification time. Compliance with the Swift API really + * needs that. */ + dump_last_modified(s, s->bucket_mtime); +} + +void RGWStatAccount_ObjStore_SWIFT::execute(optional_yield y) +{ + RGWStatAccount_ObjStore::execute(y); + op_ret = store->ctl()->user->get_attrs_by_uid(s, s->user->get_id(), &attrs, s->yield); +} + +void RGWStatAccount_ObjStore_SWIFT::send_response() +{ + if (op_ret >= 0) { + op_ret = STATUS_NO_CONTENT; + dump_account_metadata(s, + global_stats, + policies_stats, + attrs, + s->user->get_info().user_quota, + static_cast<RGWAccessControlPolicy_SWIFTAcct&>(*s->user_acl)); + } + + set_req_state_err(s, op_ret); + dump_errno(s); + + end_header(s, NULL, NULL, 0, true); + + dump_start(s); +} + +void RGWStatBucket_ObjStore_SWIFT::send_response() +{ + if (op_ret >= 0) { + op_ret = STATUS_NO_CONTENT; + dump_container_metadata(s, bucket.get(), bucket_quota, + s->bucket->get_info().website_conf); + } + + set_req_state_err(s, op_ret); + dump_errno(s); + + end_header(s, this, NULL, 0, true); + dump_start(s); +} + +static int get_swift_container_settings(req_state * const s, + rgw::sal::RGWRadosStore * const store, + RGWAccessControlPolicy * const policy, + bool * const has_policy, + uint32_t * rw_mask, + RGWCORSConfiguration * const cors_config, + bool * const has_cors) +{ + const char * const read_list = s->info.env->get("HTTP_X_CONTAINER_READ"); + const char * const write_list = s->info.env->get("HTTP_X_CONTAINER_WRITE"); + + *has_policy = false; + + if (read_list || write_list) { + RGWAccessControlPolicy_SWIFT swift_policy(s->cct); + const auto r = swift_policy.create(s, store->ctl()->user, + s->user->get_id(), + s->user->get_display_name(), + read_list, + write_list, + *rw_mask); + if (r < 0) { + return r; + } + + *policy = swift_policy; + *has_policy = true; + } + + *has_cors = false; + + /*Check and update CORS configuration*/ + const char *allow_origins = s->info.env->get("HTTP_X_CONTAINER_META_ACCESS_CONTROL_ALLOW_ORIGIN"); + const char *allow_headers = s->info.env->get("HTTP_X_CONTAINER_META_ACCESS_CONTROL_ALLOW_HEADERS"); + const char *expose_headers = s->info.env->get("HTTP_X_CONTAINER_META_ACCESS_CONTROL_EXPOSE_HEADERS"); + const char *max_age = s->info.env->get("HTTP_X_CONTAINER_META_ACCESS_CONTROL_MAX_AGE"); + if (allow_origins) { + RGWCORSConfiguration_SWIFT *swift_cors = new RGWCORSConfiguration_SWIFT; + int r = swift_cors->create_update(allow_origins, allow_headers, expose_headers, max_age); + if (r < 0) { + ldpp_dout(s, 0) << "Error creating/updating the cors configuration" << dendl; + delete swift_cors; + return r; + } + *has_cors = true; + *cors_config = *swift_cors; + cors_config->dump(); + delete swift_cors; + } + + return 0; +} + +#define ACCT_REMOVE_ATTR_PREFIX "HTTP_X_REMOVE_ACCOUNT_META_" +#define ACCT_PUT_ATTR_PREFIX "HTTP_X_ACCOUNT_META_" +#define CONT_REMOVE_ATTR_PREFIX "HTTP_X_REMOVE_CONTAINER_META_" +#define CONT_PUT_ATTR_PREFIX "HTTP_X_CONTAINER_META_" + +static void get_rmattrs_from_headers(const req_state * const s, + const char * const put_prefix, + const char * const del_prefix, + set<string>& rmattr_names) +{ + const size_t put_prefix_len = strlen(put_prefix); + const size_t del_prefix_len = strlen(del_prefix); + + for (const auto& kv : s->info.env->get_map()) { + size_t prefix_len = 0; + const char * const p = kv.first.c_str(); + + if (strncasecmp(p, del_prefix, del_prefix_len) == 0) { + /* Explicitly requested removal. */ + prefix_len = del_prefix_len; + } else if ((strncasecmp(p, put_prefix, put_prefix_len) == 0) + && kv.second.empty()) { + /* Removal requested by putting an empty value. */ + prefix_len = put_prefix_len; + } + + if (prefix_len > 0) { + string name(RGW_ATTR_META_PREFIX); + name.append(lowercase_dash_http_attr(p + prefix_len)); + rmattr_names.insert(name); + } + } +} + +static int get_swift_versioning_settings( + req_state * const s, + boost::optional<std::string>& swift_ver_location) +{ + /* Removing the Swift's versions location has lower priority than setting + * a new one. That's the reason why we're handling it first. */ + const std::string vlocdel = + s->info.env->get("HTTP_X_REMOVE_VERSIONS_LOCATION", ""); + if (vlocdel.size()) { + swift_ver_location = boost::in_place(std::string()); + } + + if (s->info.env->exists("HTTP_X_VERSIONS_LOCATION")) { + /* If the Swift's versioning is globally disabled but someone wants to + * enable it for a given container, new version of Swift will generate + * the precondition failed error. */ + if (! s->cct->_conf->rgw_swift_versioning_enabled) { + return -ERR_PRECONDITION_FAILED; + } + + swift_ver_location = s->info.env->get("HTTP_X_VERSIONS_LOCATION", ""); + } + + return 0; +} + +int RGWCreateBucket_ObjStore_SWIFT::get_params(optional_yield y) +{ + bool has_policy; + uint32_t policy_rw_mask = 0; + + int r = get_swift_container_settings(s, store, &policy, &has_policy, + &policy_rw_mask, &cors_config, &has_cors); + if (r < 0) { + return r; + } + + if (!has_policy) { + policy.create_default(s->user->get_id(), s->user->get_display_name()); + } + + location_constraint = store->svc()->zone->get_zonegroup().api_name; + get_rmattrs_from_headers(s, CONT_PUT_ATTR_PREFIX, + CONT_REMOVE_ATTR_PREFIX, rmattr_names); + placement_rule.init(s->info.env->get("HTTP_X_STORAGE_POLICY", ""), s->info.storage_class); + + return get_swift_versioning_settings(s, swift_ver_location); +} + +static inline int handle_metadata_errors(req_state* const s, const int op_ret) +{ + if (op_ret == -EFBIG) { + /* Handle the custom error message of exceeding maximum custom attribute + * (stored as xattr) size. */ + const auto error_message = boost::str( + boost::format("Metadata value longer than %lld") + % s->cct->_conf.get_val<Option::size_t>("rgw_max_attr_size")); + set_req_state_err(s, EINVAL, error_message); + return -EINVAL; + } else if (op_ret == -E2BIG) { + const auto error_message = boost::str( + boost::format("Too many metadata items; max %lld") + % s->cct->_conf.get_val<uint64_t>("rgw_max_attrs_num_in_req")); + set_req_state_err(s, EINVAL, error_message); + return -EINVAL; + } + + return op_ret; +} + +void RGWCreateBucket_ObjStore_SWIFT::send_response() +{ + const auto meta_ret = handle_metadata_errors(s, op_ret); + if (meta_ret != op_ret) { + op_ret = meta_ret; + } else { + if (!op_ret) { + op_ret = STATUS_CREATED; + } else if (op_ret == -ERR_BUCKET_EXISTS) { + op_ret = STATUS_ACCEPTED; + } + set_req_state_err(s, op_ret); + } + + dump_errno(s); + /* Propose ending HTTP header with 0 Content-Length header. */ + end_header(s, NULL, NULL, 0); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +void RGWDeleteBucket_ObjStore_SWIFT::send_response() +{ + int r = op_ret; + if (!r) + r = STATUS_NO_CONTENT; + + set_req_state_err(s, r); + dump_errno(s); + end_header(s, this, NULL, 0); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +static int get_delete_at_param(req_state *s, boost::optional<real_time> &delete_at) +{ + /* Handle Swift object expiration. */ + real_time delat_proposal; + string x_delete = s->info.env->get("HTTP_X_DELETE_AFTER", ""); + + if (x_delete.empty()) { + x_delete = s->info.env->get("HTTP_X_DELETE_AT", ""); + } else { + /* X-Delete-After HTTP is present. It means we need add its value + * to the current time. */ + delat_proposal = real_clock::now(); + } + + if (x_delete.empty()) { + delete_at = boost::none; + if (s->info.env->exists("HTTP_X_REMOVE_DELETE_AT")) { + delete_at = boost::in_place(real_time()); + } + return 0; + } + string err; + long ts = strict_strtoll(x_delete.c_str(), 10, &err); + + if (!err.empty()) { + return -EINVAL; + } + + delat_proposal += make_timespan(ts); + if (delat_proposal < real_clock::now()) { + return -EINVAL; + } + + delete_at = delat_proposal; + + return 0; +} + +int RGWPutObj_ObjStore_SWIFT::verify_permission(optional_yield y) +{ + op_ret = RGWPutObj_ObjStore::verify_permission(y); + + /* We have to differentiate error codes depending on whether user is + * anonymous (401 Unauthorized) or he doesn't have necessary permissions + * (403 Forbidden). */ + if (s->auth.identity->is_anonymous() && op_ret == -EACCES) { + return -EPERM; + } else { + return op_ret; + } +} + +int RGWPutObj_ObjStore_SWIFT::update_slo_segment_size(rgw_slo_entry& entry) { + + int r = 0; + const string& path = entry.path; + + /* If the path starts with slashes, strip them all. */ + const size_t pos_init = path.find_first_not_of('/'); + + if (pos_init == string::npos) { + return -EINVAL; + } + + const size_t pos_sep = path.find('/', pos_init); + if (pos_sep == string::npos) { + return -EINVAL; + } + + string bucket_name = path.substr(pos_init, pos_sep - pos_init); + string obj_name = path.substr(pos_sep + 1); + + rgw_bucket bucket; + + if (bucket_name.compare(s->bucket->get_name()) != 0) { + RGWBucketInfo bucket_info; + map<string, bufferlist> bucket_attrs; + r = store->getRados()->get_bucket_info(store->svc(), s->user->get_id().tenant, + bucket_name, bucket_info, nullptr, + s->yield, s, &bucket_attrs); + if (r < 0) { + ldpp_dout(this, 0) << "could not get bucket info for bucket=" + << bucket_name << dendl; + return r; + } + bucket = bucket_info.bucket; + } else { + bucket = s->bucket->get_key(); + } + + /* fetch the stored size of the seg (or error if not valid) */ + rgw_obj_key slo_key(obj_name); + rgw_obj slo_seg(bucket, slo_key); + + /* no prefetch */ + RGWObjectCtx obj_ctx(store); + obj_ctx.set_atomic(slo_seg); + + RGWRados::Object op_target(store->getRados(), s->bucket->get_info(), obj_ctx, slo_seg); + RGWRados::Object::Read read_op(&op_target); + + bool compressed; + RGWCompressionInfo cs_info; + map<std::string, buffer::list> attrs; + uint64_t size_bytes{0}; + + read_op.params.attrs = &attrs; + read_op.params.obj_size = &size_bytes; + + r = read_op.prepare(s->yield, s); + if (r < 0) { + return r; + } + + r = rgw_compression_info_from_attrset(attrs, compressed, cs_info); + if (r < 0) { + return -EIO; + } + + if (compressed) { + size_bytes = cs_info.orig_size; + } + + /* "When the PUT operation sees the multipart-manifest=put query + * parameter, it reads the request body and verifies that each + * segment object exists and that the sizes and ETags match. If + * there is a mismatch, the PUT operation fails." + */ + if (entry.size_bytes && + (entry.size_bytes != size_bytes)) { + return -EINVAL; + } + + entry.size_bytes = size_bytes; + + return 0; +} /* RGWPutObj_ObjStore_SWIFT::update_slo_segment_sizes */ + +int RGWPutObj_ObjStore_SWIFT::get_params(optional_yield y) +{ + if (s->has_bad_meta) { + return -EINVAL; + } + + if (!s->length) { + const char *encoding = s->info.env->get("HTTP_TRANSFER_ENCODING"); + if (!encoding || strcmp(encoding, "chunked") != 0) { + ldpp_dout(this, 20) << "neither length nor chunked encoding" << dendl; + return -ERR_LENGTH_REQUIRED; + } + + chunked_upload = true; + } + + supplied_etag = s->info.env->get("HTTP_ETAG"); + + if (!s->generic_attrs.count(RGW_ATTR_CONTENT_TYPE)) { + ldpp_dout(this, 5) << "content type wasn't provided, trying to guess" << dendl; + const char *suffix = strrchr(s->object->get_name().c_str(), '.'); + if (suffix) { + suffix++; + if (*suffix) { + string suffix_str(suffix); + const char *mime = rgw_find_mime_by_ext(suffix_str); + if (mime) { + s->generic_attrs[RGW_ATTR_CONTENT_TYPE] = mime; + } + } + } + } + + policy.create_default(s->user->get_id(), s->user->get_display_name()); + + int r = get_delete_at_param(s, delete_at); + if (r < 0) { + ldpp_dout(this, 5) << "ERROR: failed to get Delete-At param" << dendl; + return r; + } + + if (!s->cct->_conf->rgw_swift_custom_header.empty()) { + string custom_header = s->cct->_conf->rgw_swift_custom_header; + if (s->info.env->exists(custom_header.c_str())) { + user_data = s->info.env->get(custom_header.c_str()); + } + } + + dlo_manifest = s->info.env->get("HTTP_X_OBJECT_MANIFEST"); + bool exists; + string multipart_manifest = s->info.args.get("multipart-manifest", &exists); + if (exists) { + if (multipart_manifest != "put") { + ldpp_dout(this, 5) << "invalid multipart-manifest http param: " << multipart_manifest << dendl; + return -EINVAL; + } + +#define MAX_SLO_ENTRY_SIZE (1024 + 128) // 1024 - max obj name, 128 - enough extra for other info + uint64_t max_len = s->cct->_conf->rgw_max_slo_entries * MAX_SLO_ENTRY_SIZE; + + slo_info = new RGWSLOInfo; + + int r = 0; + std::tie(r, slo_info->raw_data) = rgw_rest_get_json_input_keep_data(s->cct, s, slo_info->entries, max_len); + if (r < 0) { + ldpp_dout(this, 5) << "failed to read input for slo r=" << r << dendl; + return r; + } + + if ((int64_t)slo_info->entries.size() > s->cct->_conf->rgw_max_slo_entries) { + ldpp_dout(this, 5) << "too many entries in slo request: " << slo_info->entries.size() << dendl; + return -EINVAL; + } + + MD5 etag_sum; + // Allow use of MD5 digest in FIPS mode for non-cryptographic purposes + etag_sum.SetFlags(EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); + uint64_t total_size = 0; + for (auto& entry : slo_info->entries) { + etag_sum.Update((const unsigned char *)entry.etag.c_str(), + entry.etag.length()); + + /* if size_bytes == 0, it should be replaced with the + * real segment size (which could be 0); this follows from the + * fact that Swift requires all segments to exist, but permits + * the size_bytes element to be omitted from the SLO manifest, see + * https://docs.openstack.org/swift/latest/api/large_objects.html + */ + r = update_slo_segment_size(entry); + if (r < 0) { + return r; + } + + total_size += entry.size_bytes; + + ldpp_dout(this, 20) << "slo_part: " << entry.path + << " size=" << entry.size_bytes + << " etag=" << entry.etag + << dendl; + } + complete_etag(etag_sum, &lo_etag); + slo_info->total_size = total_size; + + ofs = slo_info->raw_data.length(); + } + + return RGWPutObj_ObjStore::get_params(y); +} + +void RGWPutObj_ObjStore_SWIFT::send_response() +{ + const auto meta_ret = handle_metadata_errors(s, op_ret); + if (meta_ret) { + op_ret = meta_ret; + } else { + if (!op_ret) { + op_ret = STATUS_CREATED; + } + set_req_state_err(s, op_ret); + } + + if (! lo_etag.empty()) { + /* Static Large Object of Swift API has two etags represented by + * following members: + * - etag - for the manifest itself (it will be stored in xattrs), + * - lo_etag - for the content composited from SLO's segments. + * The value is calculated basing on segments' etags. + * In response for PUT request we have to expose the second one. + * The first one may be obtained by GET with "multipart-manifest=get" + * in query string on a given SLO. */ + dump_etag(s, lo_etag, true /* quoted */); + } else { + dump_etag(s, etag); + } + + dump_last_modified(s, mtime); + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +static int get_swift_account_settings(req_state * const s, + rgw::sal::RGWRadosStore * const store, + RGWAccessControlPolicy_SWIFTAcct * const policy, + bool * const has_policy) +{ + *has_policy = false; + + const char * const acl_attr = s->info.env->get("HTTP_X_ACCOUNT_ACCESS_CONTROL"); + if (acl_attr) { + RGWAccessControlPolicy_SWIFTAcct swift_acct_policy(s->cct); + const bool r = swift_acct_policy.create(s, store->ctl()->user, + s->user->get_id(), + s->user->get_display_name(), + string(acl_attr)); + if (r != true) { + return -EINVAL; + } + + *policy = swift_acct_policy; + *has_policy = true; + } + + return 0; +} + +int RGWPutMetadataAccount_ObjStore_SWIFT::get_params(optional_yield y) +{ + if (s->has_bad_meta) { + return -EINVAL; + } + + int ret = get_swift_account_settings(s, + store, + // FIXME: we need to carry unique_ptr in generic class + // and allocate appropriate ACL class in the ctor + static_cast<RGWAccessControlPolicy_SWIFTAcct *>(&policy), + &has_policy); + if (ret < 0) { + return ret; + } + + get_rmattrs_from_headers(s, ACCT_PUT_ATTR_PREFIX, ACCT_REMOVE_ATTR_PREFIX, + rmattr_names); + return 0; +} + +void RGWPutMetadataAccount_ObjStore_SWIFT::send_response() +{ + const auto meta_ret = handle_metadata_errors(s, op_ret); + if (meta_ret != op_ret) { + op_ret = meta_ret; + } else { + if (!op_ret) { + op_ret = STATUS_NO_CONTENT; + } + set_req_state_err(s, op_ret); + } + + dump_errno(s); + end_header(s, this); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +int RGWPutMetadataBucket_ObjStore_SWIFT::get_params(optional_yield y) +{ + if (s->has_bad_meta) { + return -EINVAL; + } + + int r = get_swift_container_settings(s, store, &policy, &has_policy, + &policy_rw_mask, &cors_config, &has_cors); + if (r < 0) { + return r; + } + + get_rmattrs_from_headers(s, CONT_PUT_ATTR_PREFIX, CONT_REMOVE_ATTR_PREFIX, + rmattr_names); + placement_rule.init(s->info.env->get("HTTP_X_STORAGE_POLICY", ""), s->info.storage_class); + + return get_swift_versioning_settings(s, swift_ver_location); +} + +void RGWPutMetadataBucket_ObjStore_SWIFT::send_response() +{ + const auto meta_ret = handle_metadata_errors(s, op_ret); + if (meta_ret != op_ret) { + op_ret = meta_ret; + } else { + if (!op_ret && (op_ret != -EINVAL)) { + op_ret = STATUS_NO_CONTENT; + } + set_req_state_err(s, op_ret); + } + + dump_errno(s); + end_header(s, this); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +int RGWPutMetadataObject_ObjStore_SWIFT::get_params(optional_yield y) +{ + if (s->has_bad_meta) { + return -EINVAL; + } + + /* Handle Swift object expiration. */ + int r = get_delete_at_param(s, delete_at); + if (r < 0) { + ldpp_dout(this, 5) << "ERROR: failed to get Delete-At param" << dendl; + return r; + } + + dlo_manifest = s->info.env->get("HTTP_X_OBJECT_MANIFEST"); + + return 0; +} + +void RGWPutMetadataObject_ObjStore_SWIFT::send_response() +{ + const auto meta_ret = handle_metadata_errors(s, op_ret); + if (meta_ret != op_ret) { + op_ret = meta_ret; + } else { + if (!op_ret) { + op_ret = STATUS_ACCEPTED; + } + set_req_state_err(s, op_ret); + } + + if (!s->is_err()) { + dump_content_length(s, 0); + } + + dump_errno(s); + end_header(s, this); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +static void bulkdelete_respond(const unsigned num_deleted, + const unsigned int num_unfound, + const std::list<RGWBulkDelete::fail_desc_t>& failures, + const int prot_flags, /* in */ + ceph::Formatter& formatter) /* out */ +{ + formatter.open_object_section("delete"); + + string resp_status; + string resp_body; + + if (!failures.empty()) { + int reason = ERR_INVALID_REQUEST; + for (const auto& fail_desc : failures) { + if (-ENOENT != fail_desc.err && -EACCES != fail_desc.err) { + reason = fail_desc.err; + } + } + rgw_err err; + set_req_state_err(err, reason, prot_flags); + dump_errno(err, resp_status); + } else if (0 == num_deleted && 0 == num_unfound) { + /* 400 Bad Request */ + dump_errno(400, resp_status); + resp_body = "Invalid bulk delete."; + } else { + /* 200 OK */ + dump_errno(200, resp_status); + } + + encode_json("Number Deleted", num_deleted, &formatter); + encode_json("Number Not Found", num_unfound, &formatter); + encode_json("Response Body", resp_body, &formatter); + encode_json("Response Status", resp_status, &formatter); + + formatter.open_array_section("Errors"); + for (const auto& fail_desc : failures) { + formatter.open_array_section("object"); + + stringstream ss_name; + ss_name << fail_desc.path; + encode_json("Name", ss_name.str(), &formatter); + + rgw_err err; + set_req_state_err(err, fail_desc.err, prot_flags); + string status; + dump_errno(err, status); + encode_json("Status", status, &formatter); + formatter.close_section(); + } + formatter.close_section(); + + formatter.close_section(); +} + +int RGWDeleteObj_ObjStore_SWIFT::verify_permission(optional_yield y) +{ + op_ret = RGWDeleteObj_ObjStore::verify_permission(y); + + /* We have to differentiate error codes depending on whether user is + * anonymous (401 Unauthorized) or he doesn't have necessary permissions + * (403 Forbidden). */ + if (s->auth.identity->is_anonymous() && op_ret == -EACCES) { + return -EPERM; + } else { + return op_ret; + } +} + +int RGWDeleteObj_ObjStore_SWIFT::get_params(optional_yield y) +{ + const string& mm = s->info.args.get("multipart-manifest"); + multipart_delete = (mm.compare("delete") == 0); + + return RGWDeleteObj_ObjStore::get_params(y); +} + +void RGWDeleteObj_ObjStore_SWIFT::send_response() +{ + int r = op_ret; + + if (multipart_delete) { + r = 0; + } else if(!r) { + r = STATUS_NO_CONTENT; + } + + set_req_state_err(s, r); + dump_errno(s); + + if (multipart_delete) { + end_header(s, this /* RGWOp */, nullptr /* contype */, + CHUNKED_TRANSFER_ENCODING); + + if (deleter) { + bulkdelete_respond(deleter->get_num_deleted(), + deleter->get_num_unfound(), + deleter->get_failures(), + s->prot_flags, + *s->formatter); + } else if (-ENOENT == op_ret) { + bulkdelete_respond(0, 1, {}, s->prot_flags, *s->formatter); + } else { + RGWBulkDelete::acct_path_t path; + path.bucket_name = s->bucket_name; + path.obj_key = s->object->get_key(); + + RGWBulkDelete::fail_desc_t fail_desc; + fail_desc.err = op_ret; + fail_desc.path = path; + + bulkdelete_respond(0, 0, { fail_desc }, s->prot_flags, *s->formatter); + } + } else { + end_header(s, this); + } + + rgw_flush_formatter_and_reset(s, s->formatter); + +} + +static void get_contype_from_attrs(map<string, bufferlist>& attrs, + string& content_type) +{ + map<string, bufferlist>::iterator iter = attrs.find(RGW_ATTR_CONTENT_TYPE); + if (iter != attrs.end()) { + content_type = rgw_bl_str(iter->second); + } +} + +static void dump_object_metadata(const DoutPrefixProvider* dpp, struct req_state * const s, + const map<string, bufferlist>& attrs) +{ + map<string, string> response_attrs; + + for (auto kv : attrs) { + const char * name = kv.first.c_str(); + const auto aiter = rgw_to_http_attrs.find(name); + + if (aiter != std::end(rgw_to_http_attrs)) { + response_attrs[aiter->second] = rgw_bl_str(kv.second); + } else if (strcmp(name, RGW_ATTR_SLO_UINDICATOR) == 0) { + // this attr has an extra length prefix from encode() in prior versions + dump_header(s, "X-Object-Meta-Static-Large-Object", "True"); + } else if (strncmp(name, RGW_ATTR_META_PREFIX, + sizeof(RGW_ATTR_META_PREFIX)-1) == 0) { + name += sizeof(RGW_ATTR_META_PREFIX) - 1; + dump_header_prefixed(s, "X-Object-Meta-", + camelcase_dash_http_attr(name), kv.second); + } + } + + /* Handle override and fallback for Content-Disposition HTTP header. + * At the moment this will be used only by TempURL of the Swift API. */ + const auto cditer = rgw_to_http_attrs.find(RGW_ATTR_CONTENT_DISP); + if (cditer != std::end(rgw_to_http_attrs)) { + const auto& name = cditer->second; + + if (!s->content_disp.override.empty()) { + response_attrs[name] = s->content_disp.override; + } else if (!s->content_disp.fallback.empty() + && response_attrs.find(name) == std::end(response_attrs)) { + response_attrs[name] = s->content_disp.fallback; + } + } + + for (const auto& kv : response_attrs) { + dump_header(s, kv.first, kv.second); + } + + const auto iter = attrs.find(RGW_ATTR_DELETE_AT); + if (iter != std::end(attrs)) { + utime_t delete_at; + try { + decode(delete_at, iter->second); + if (!delete_at.is_zero()) { + dump_header(s, "X-Delete-At", delete_at.sec()); + } + } catch (buffer::error& err) { + ldpp_dout(dpp, 0) << "ERROR: cannot decode object's " RGW_ATTR_DELETE_AT + " attr, ignoring" + << dendl; + } + } +} + +int RGWCopyObj_ObjStore_SWIFT::init_dest_policy() +{ + dest_policy.create_default(s->user->get_id(), s->user->get_display_name()); + + return 0; +} + +int RGWCopyObj_ObjStore_SWIFT::get_params(optional_yield y) +{ + if_mod = s->info.env->get("HTTP_IF_MODIFIED_SINCE"); + if_unmod = s->info.env->get("HTTP_IF_UNMODIFIED_SINCE"); + if_match = s->info.env->get("HTTP_COPY_IF_MATCH"); + if_nomatch = s->info.env->get("HTTP_COPY_IF_NONE_MATCH"); + + src_tenant_name = s->src_tenant_name; + src_bucket_name = s->src_bucket_name; + src_object = s->src_object->clone(); + dest_tenant_name = s->bucket_tenant; + dest_bucket_name = s->bucket_name; + dest_obj_name = s->object->get_name(); + + const char * const fresh_meta = s->info.env->get("HTTP_X_FRESH_METADATA"); + if (fresh_meta && strcasecmp(fresh_meta, "TRUE") == 0) { + attrs_mod = rgw::sal::ATTRSMOD_REPLACE; + } else { + attrs_mod = rgw::sal::ATTRSMOD_MERGE; + } + + int r = get_delete_at_param(s, delete_at); + if (r < 0) { + ldpp_dout(this, 5) << "ERROR: failed to get Delete-At param" << dendl; + return r; + } + + return 0; +} + +void RGWCopyObj_ObjStore_SWIFT::send_partial_response(off_t ofs) +{ + if (! sent_header) { + if (! op_ret) + op_ret = STATUS_CREATED; + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this); + + /* Send progress information. Note that this diverge from the original swift + * spec. We do this in order to keep connection alive. + */ + if (op_ret == 0) { + s->formatter->open_array_section("progress"); + } + sent_header = true; + } else { + s->formatter->dump_int("ofs", (uint64_t)ofs); + } + rgw_flush_formatter(s, s->formatter); +} + +void RGWCopyObj_ObjStore_SWIFT::dump_copy_info() +{ + /* Dump X-Copied-From. */ + dump_header(s, "X-Copied-From", url_encode(src_bucket->get_name()) + + "/" + url_encode(src_object->get_name())); + + /* Dump X-Copied-From-Account. */ + /* XXX tenant */ + dump_header(s, "X-Copied-From-Account", url_encode(s->user->get_id().id)); + + /* Dump X-Copied-From-Last-Modified. */ + dump_time_header(s, "X-Copied-From-Last-Modified", src_mtime); +} + +void RGWCopyObj_ObjStore_SWIFT::send_response() +{ + if (! sent_header) { + string content_type; + if (! op_ret) + op_ret = STATUS_CREATED; + set_req_state_err(s, op_ret); + dump_errno(s); + dump_etag(s, etag); + dump_last_modified(s, mtime); + dump_copy_info(); + get_contype_from_attrs(attrs, content_type); + dump_object_metadata(this, s, attrs); + end_header(s, this, !content_type.empty() ? content_type.c_str() + : "binary/octet-stream"); + } else { + s->formatter->close_section(); + rgw_flush_formatter(s, s->formatter); + } +} + +int RGWGetObj_ObjStore_SWIFT::verify_permission(optional_yield y) +{ + op_ret = RGWGetObj_ObjStore::verify_permission(y); + + /* We have to differentiate error codes depending on whether user is + * anonymous (401 Unauthorized) or he doesn't have necessary permissions + * (403 Forbidden). */ + if (s->auth.identity->is_anonymous() && op_ret == -EACCES) { + return -EPERM; + } else { + return op_ret; + } +} + +int RGWGetObj_ObjStore_SWIFT::get_params(optional_yield y) +{ + const string& mm = s->info.args.get("multipart-manifest"); + skip_manifest = (mm.compare("get") == 0); + + return RGWGetObj_ObjStore::get_params(y); +} + +int RGWGetObj_ObjStore_SWIFT::send_response_data_error(optional_yield y) +{ + std::string error_content; + op_ret = error_handler(op_ret, &error_content, y); + if (! op_ret) { + /* The error handler has taken care of the error. */ + return 0; + } + + bufferlist error_bl; + error_bl.append(error_content); + return send_response_data(error_bl, 0, error_bl.length()); +} + +int RGWGetObj_ObjStore_SWIFT::send_response_data(bufferlist& bl, + const off_t bl_ofs, + const off_t bl_len) +{ + string content_type; + + if (sent_header) { + goto send_data; + } + + if (custom_http_ret) { + set_req_state_err(s, 0); + dump_errno(s, custom_http_ret); + } else { + set_req_state_err(s, (partial_content && !op_ret) ? STATUS_PARTIAL_CONTENT + : op_ret); + dump_errno(s); + + if (s->is_err()) { + end_header(s, NULL); + return 0; + } + } + + if (range_str) { + dump_range(s, ofs, end, s->obj_size); + } + + if (s->is_err()) { + end_header(s, NULL); + return 0; + } + + dump_content_length(s, total_len); + dump_last_modified(s, lastmod); + dump_header(s, "X-Timestamp", utime_t(lastmod)); + if (is_slo) { + dump_header(s, "X-Static-Large-Object", "True"); + } + + if (! op_ret) { + if (! lo_etag.empty()) { + dump_etag(s, lo_etag, true /* quoted */); + } else { + auto iter = attrs.find(RGW_ATTR_ETAG); + if (iter != attrs.end()) { + dump_etag(s, iter->second.to_str()); + } + } + + get_contype_from_attrs(attrs, content_type); + dump_object_metadata(this, s, attrs); + } + + end_header(s, this, !content_type.empty() ? content_type.c_str() + : "binary/octet-stream"); + + sent_header = true; + +send_data: + if (get_data && !op_ret) { + const auto r = dump_body(s, bl.c_str() + bl_ofs, bl_len); + if (r < 0) { + return r; + } + } + rgw_flush_formatter_and_reset(s, s->formatter); + + return 0; +} + +void RGWOptionsCORS_ObjStore_SWIFT::send_response() +{ + string hdrs, exp_hdrs; + uint32_t max_age = CORS_MAX_AGE_INVALID; + /*EACCES means, there is no CORS registered yet for the bucket + *ENOENT means, there is no match of the Origin in the list of CORSRule + */ + if (op_ret == -ENOENT) + op_ret = -EACCES; + if (op_ret < 0) { + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, NULL); + return; + } + get_response_params(hdrs, exp_hdrs, &max_age); + dump_errno(s); + dump_access_control(s, origin, req_meth, hdrs.c_str(), exp_hdrs.c_str(), + max_age); + end_header(s, NULL); +} + +int RGWBulkDelete_ObjStore_SWIFT::get_data( + list<RGWBulkDelete::acct_path_t>& items, bool * const is_truncated) +{ + constexpr size_t MAX_LINE_SIZE = 2048; + + RGWClientIOStreamBuf ciosb(static_cast<RGWRestfulIO&>(*(s->cio)), + size_t(s->cct->_conf->rgw_max_chunk_size)); + istream cioin(&ciosb); + + char buf[MAX_LINE_SIZE]; + while (cioin.getline(buf, sizeof(buf))) { + string path_str(buf); + + ldpp_dout(this, 20) << "extracted Bulk Delete entry: " << path_str << dendl; + + RGWBulkDelete::acct_path_t path; + + /* We need to skip all slashes at the beginning in order to preserve + * compliance with Swift. */ + const size_t start_pos = path_str.find_first_not_of('/'); + + if (string::npos != start_pos) { + /* Seperator is the first slash after the leading ones. */ + const size_t sep_pos = path_str.find('/', start_pos); + + if (string::npos != sep_pos) { + path.bucket_name = url_decode(path_str.substr(start_pos, + sep_pos - start_pos)); + path.obj_key = url_decode(path_str.substr(sep_pos + 1)); + } else { + /* It's guaranteed here that bucket name is at least one character + * long and is different than slash. */ + path.bucket_name = url_decode(path_str.substr(start_pos)); + } + + items.push_back(path); + } + + if (items.size() == MAX_CHUNK_ENTRIES) { + *is_truncated = true; + return 0; + } + } + + *is_truncated = false; + return 0; +} + +void RGWBulkDelete_ObjStore_SWIFT::send_response() +{ + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this /* RGWOp */, nullptr /* contype */, + CHUNKED_TRANSFER_ENCODING); + + bulkdelete_respond(deleter->get_num_deleted(), + deleter->get_num_unfound(), + deleter->get_failures(), + s->prot_flags, + *s->formatter); + rgw_flush_formatter_and_reset(s, s->formatter); +} + + +std::unique_ptr<RGWBulkUploadOp::StreamGetter> +RGWBulkUploadOp_ObjStore_SWIFT::create_stream() +{ + class SwiftStreamGetter : public StreamGetter { + const DoutPrefixProvider* dpp; + const size_t conlen; + size_t curpos; + req_state* const s; + + public: + SwiftStreamGetter(const DoutPrefixProvider* dpp, req_state* const s, const size_t conlen) + : dpp(dpp), + conlen(conlen), + curpos(0), + s(s) { + } + + ssize_t get_at_most(size_t want, ceph::bufferlist& dst) override { + /* maximum requested by a caller */ + /* data provided by client */ + /* RadosGW's limit. */ + const size_t max_chunk_size = \ + static_cast<size_t>(s->cct->_conf->rgw_max_chunk_size); + const size_t max_to_read = std::min({ want, conlen - curpos, max_chunk_size }); + + ldpp_dout(dpp, 20) << "bulk_upload: get_at_most max_to_read=" + << max_to_read + << ", dst.c_str()=" << reinterpret_cast<intptr_t>(dst.c_str()) << dendl; + + bufferptr bp(max_to_read); + const auto read_len = recv_body(s, bp.c_str(), max_to_read); + dst.append(bp, 0, read_len); + //const auto read_len = recv_body(s, dst.c_str(), max_to_read); + if (read_len < 0) { + return read_len; + } + + curpos += read_len; + return curpos > s->cct->_conf->rgw_max_put_size ? -ERR_TOO_LARGE + : read_len; + } + + ssize_t get_exactly(size_t want, ceph::bufferlist& dst) override { + ldpp_dout(dpp, 20) << "bulk_upload: get_exactly want=" << want << dendl; + + /* FIXME: do this in a loop. */ + const auto ret = get_at_most(want, dst); + ldpp_dout(dpp, 20) << "bulk_upload: get_exactly ret=" << ret << dendl; + if (ret < 0) { + return ret; + } else if (static_cast<size_t>(ret) != want) { + return -EINVAL; + } else { + return want; + } + } + }; + + if (! s->length) { + op_ret = -EINVAL; + return nullptr; + } else { + ldpp_dout(this, 20) << "bulk upload: create_stream for length=" + << s->length << dendl; + + const size_t conlen = atoll(s->length); + return std::unique_ptr<SwiftStreamGetter>(new SwiftStreamGetter(this, s, conlen)); + } +} + +void RGWBulkUploadOp_ObjStore_SWIFT::send_response() +{ + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this /* RGWOp */, nullptr /* contype */, + CHUNKED_TRANSFER_ENCODING); + rgw_flush_formatter_and_reset(s, s->formatter); + + s->formatter->open_object_section("delete"); + + std::string resp_status; + std::string resp_body; + + if (! failures.empty()) { + rgw_err err; + + const auto last_err = { failures.back().err }; + if (boost::algorithm::contains(last_err, terminal_errors)) { + /* The terminal errors are affecting the status of the whole upload. */ + set_req_state_err(err, failures.back().err, s->prot_flags); + } else { + set_req_state_err(err, ERR_INVALID_REQUEST, s->prot_flags); + } + + dump_errno(err, resp_status); + } else if (0 == num_created && failures.empty()) { + /* Nothing created, nothing failed. This means the archive contained no + * entity we could understand (regular file or directory). We need to + * send 400 Bad Request to an HTTP client in the internal status field. */ + dump_errno(400, resp_status); + resp_body = "Invalid Tar File: No Valid Files"; + } else { + /* 200 OK */ + dump_errno(201, resp_status); + } + + encode_json("Number Files Created", num_created, s->formatter); + encode_json("Response Body", resp_body, s->formatter); + encode_json("Response Status", resp_status, s->formatter); + + s->formatter->open_array_section("Errors"); + for (const auto& fail_desc : failures) { + s->formatter->open_array_section("object"); + + encode_json("Name", fail_desc.path, s->formatter); + + rgw_err err; + set_req_state_err(err, fail_desc.err, s->prot_flags); + std::string status; + dump_errno(err, status); + encode_json("Status", status, s->formatter); + + s->formatter->close_section(); + } + s->formatter->close_section(); + + s->formatter->close_section(); + rgw_flush_formatter_and_reset(s, s->formatter); +} + + +void RGWGetCrossDomainPolicy_ObjStore_SWIFT::send_response() +{ + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this, "application/xml"); + + std::stringstream ss; + + ss << R"(<?xml version="1.0"?>)" << "\n" + << R"(<!DOCTYPE cross-domain-policy SYSTEM )" + << R"("http://www.adobe.com/xml/dtds/cross-domain-policy.dtd" >)" << "\n" + << R"(<cross-domain-policy>)" << "\n" + << g_conf()->rgw_cross_domain_policy << "\n" + << R"(</cross-domain-policy>)"; + + dump_body(s, ss.str()); +} + +void RGWGetHealthCheck_ObjStore_SWIFT::send_response() +{ + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this, "application/xml"); + + if (op_ret) { + static constexpr char DISABLED[] = "DISABLED BY FILE"; + dump_body(s, DISABLED, strlen(DISABLED)); + } +} + +const vector<pair<string, RGWInfo_ObjStore_SWIFT::info>> RGWInfo_ObjStore_SWIFT::swift_info = +{ + {"bulk_delete", {false, nullptr}}, + {"container_quotas", {false, nullptr}}, + {"swift", {false, RGWInfo_ObjStore_SWIFT::list_swift_data}}, + {"tempurl", { false, RGWInfo_ObjStore_SWIFT::list_tempurl_data}}, + {"slo", {false, RGWInfo_ObjStore_SWIFT::list_slo_data}}, + {"account_quotas", {false, nullptr}}, + {"staticweb", {false, nullptr}}, + {"tempauth", {false, RGWInfo_ObjStore_SWIFT::list_tempauth_data}}, +}; + +void RGWInfo_ObjStore_SWIFT::execute(optional_yield y) +{ + bool is_admin_info_enabled = false; + + const string& swiftinfo_sig = s->info.args.get("swiftinfo_sig"); + const string& swiftinfo_expires = s->info.args.get("swiftinfo_expires"); + + if (!swiftinfo_sig.empty() && + !swiftinfo_expires.empty() && + !is_expired(swiftinfo_expires, this)) { + is_admin_info_enabled = true; + } + + s->formatter->open_object_section("info"); + + for (const auto& pair : swift_info) { + if(!is_admin_info_enabled && pair.second.is_admin_info) + continue; + + if (!pair.second.list_data) { + s->formatter->open_object_section((pair.first).c_str()); + s->formatter->close_section(); + } + else { + pair.second.list_data(*(s->formatter), s->cct->_conf, *store->getRados()); + } + } + + s->formatter->close_section(); +} + +void RGWInfo_ObjStore_SWIFT::send_response() +{ + if (op_ret < 0) { + op_ret = STATUS_NO_CONTENT; + } + set_req_state_err(s, op_ret); + dump_errno(s); + end_header(s, this); + rgw_flush_formatter_and_reset(s, s->formatter); +} + +void RGWInfo_ObjStore_SWIFT::list_swift_data(Formatter& formatter, + const ConfigProxy& config, + RGWRados& store) +{ + formatter.open_object_section("swift"); + formatter.dump_int("max_file_size", config->rgw_max_put_size); + formatter.dump_int("container_listing_limit", RGW_LIST_BUCKETS_LIMIT_MAX); + + string ceph_version(CEPH_GIT_NICE_VER); + formatter.dump_string("version", ceph_version); + + const size_t max_attr_name_len = \ + g_conf().get_val<Option::size_t>("rgw_max_attr_name_len"); + if (max_attr_name_len) { + const size_t meta_name_limit = \ + max_attr_name_len - strlen(RGW_ATTR_PREFIX RGW_AMZ_META_PREFIX); + formatter.dump_int("max_meta_name_length", meta_name_limit); + } + + const size_t meta_value_limit = g_conf().get_val<Option::size_t>("rgw_max_attr_size"); + if (meta_value_limit) { + formatter.dump_int("max_meta_value_length", meta_value_limit); + } + + const size_t meta_num_limit = \ + g_conf().get_val<uint64_t>("rgw_max_attrs_num_in_req"); + if (meta_num_limit) { + formatter.dump_int("max_meta_count", meta_num_limit); + } + + formatter.open_array_section("policies"); + const RGWZoneGroup& zonegroup = store.svc.zone->get_zonegroup(); + + for (const auto& placement_targets : zonegroup.placement_targets) { + formatter.open_object_section("policy"); + if (placement_targets.second.name.compare(zonegroup.default_placement.name) == 0) + formatter.dump_bool("default", true); + formatter.dump_string("name", placement_targets.second.name.c_str()); + formatter.close_section(); + } + formatter.close_section(); + + formatter.dump_int("max_object_name_size", RGWHandler_REST::MAX_OBJ_NAME_LEN); + formatter.dump_bool("strict_cors_mode", true); + formatter.dump_int("max_container_name_length", RGWHandler_REST::MAX_BUCKET_NAME_LEN); + formatter.close_section(); +} + +void RGWInfo_ObjStore_SWIFT::list_tempauth_data(Formatter& formatter, + const ConfigProxy& config, + RGWRados& store) +{ + formatter.open_object_section("tempauth"); + formatter.dump_bool("account_acls", true); + formatter.close_section(); +} +void RGWInfo_ObjStore_SWIFT::list_tempurl_data(Formatter& formatter, + const ConfigProxy& config, + RGWRados& store) +{ + formatter.open_object_section("tempurl"); + formatter.open_array_section("methods"); + formatter.dump_string("methodname", "GET"); + formatter.dump_string("methodname", "HEAD"); + formatter.dump_string("methodname", "PUT"); + formatter.dump_string("methodname", "POST"); + formatter.dump_string("methodname", "DELETE"); + formatter.close_section(); + formatter.close_section(); +} + +void RGWInfo_ObjStore_SWIFT::list_slo_data(Formatter& formatter, + const ConfigProxy& config, + RGWRados& store) +{ + formatter.open_object_section("slo"); + formatter.dump_int("max_manifest_segments", config->rgw_max_slo_entries); + formatter.close_section(); +} + +bool RGWInfo_ObjStore_SWIFT::is_expired(const std::string& expires, const DoutPrefixProvider *dpp) +{ + string err; + const utime_t now = ceph_clock_now(); + const uint64_t expiration = (uint64_t)strict_strtoll(expires.c_str(), + 10, &err); + if (!err.empty()) { + ldpp_dout(dpp, 5) << "failed to parse siginfo_expires: " << err << dendl; + return true; + } + + if (expiration <= (uint64_t)now.sec()) { + ldpp_dout(dpp, 5) << "siginfo expired: " << expiration << " <= " << now.sec() << dendl; + return true; + } + + return false; +} + + +void RGWFormPost::init(rgw::sal::RGWRadosStore* const store, + req_state* const s, + RGWHandler* const dialect_handler) +{ + prefix = std::move(s->object->get_name()); + s->object->set_key(rgw_obj_key()); + + return RGWPostObj_ObjStore::init(store, s, dialect_handler); +} + +std::size_t RGWFormPost::get_max_file_size() /*const*/ +{ + std::string max_str = get_part_str(ctrl_parts, "max_file_size", "0"); + + std::string err; + const std::size_t max_file_size = + static_cast<uint64_t>(strict_strtoll(max_str.c_str(), 10, &err)); + + if (! err.empty()) { + ldpp_dout(this, 5) << "failed to parse FormPost's max_file_size: " << err + << dendl; + return 0; + } + + return max_file_size; +} + +bool RGWFormPost::is_non_expired() +{ + std::string expires = get_part_str(ctrl_parts, "expires", "0"); + + std::string err; + const uint64_t expires_timestamp = + static_cast<uint64_t>(strict_strtoll(expires.c_str(), 10, &err)); + + if (! err.empty()) { + ldpp_dout(this, 5) << "failed to parse FormPost's expires: " << err << dendl; + return false; + } + + const utime_t now = ceph_clock_now(); + if (expires_timestamp <= static_cast<uint64_t>(now.sec())) { + ldpp_dout(this, 5) << "FormPost form expired: " + << expires_timestamp << " <= " << now.sec() << dendl; + return false; + } + + return true; +} + +bool RGWFormPost::is_integral() +{ + const std::string form_signature = get_part_str(ctrl_parts, "signature"); + + try { + get_owner_info(s, s->user->get_info()); + s->auth.identity = rgw::auth::transform_old_authinfo(s); + } catch (...) { + ldpp_dout(this, 5) << "cannot get user_info of account's owner" << dendl; + return false; + } + + for (const auto& kv : s->user->get_info().temp_url_keys) { + const int temp_url_key_num = kv.first; + const string& temp_url_key = kv.second; + + if (temp_url_key.empty()) { + continue; + } + + SignatureHelper sig_helper; + sig_helper.calc(temp_url_key, + s->info.request_uri, + get_part_str(ctrl_parts, "redirect"), + get_part_str(ctrl_parts, "max_file_size", "0"), + get_part_str(ctrl_parts, "max_file_count", "0"), + get_part_str(ctrl_parts, "expires", "0")); + + const auto local_sig = sig_helper.get_signature(); + + ldpp_dout(this, 20) << "FormPost signature [" << temp_url_key_num << "]" + << " (calculated): " << local_sig << dendl; + + if (sig_helper.is_equal_to(form_signature)) { + return true; + } else { + ldpp_dout(this, 5) << "FormPost's signature mismatch: " + << local_sig << " != " << form_signature << dendl; + } + } + + return false; +} + +void RGWFormPost::get_owner_info(const req_state* const s, + RGWUserInfo& owner_info) const +{ + /* We cannot use req_state::bucket_name because it isn't available + * now. It will be initialized in RGWHandler_REST_SWIFT::postauth_init(). */ + const string& bucket_name = s->init_state.url_bucket; + + auto user_ctl = store->ctl()->user; + + /* TempURL in Formpost only requires that bucket name is specified. */ + if (bucket_name.empty()) { + throw -EPERM; + } + + string bucket_tenant; + if (!s->account_name.empty()) { + RGWUserInfo uinfo; + bool found = false; + + const rgw_user uid(s->account_name); + if (uid.tenant.empty()) { + const rgw_user tenanted_uid(uid.id, uid.id); + + if (user_ctl->get_info_by_uid(s, tenanted_uid, &uinfo, s->yield) >= 0) { + /* Succeeded. */ + bucket_tenant = uinfo.user_id.tenant; + found = true; + } + } + + if (!found && user_ctl->get_info_by_uid(s, uid, &uinfo, s->yield) < 0) { + throw -EPERM; + } else { + bucket_tenant = uinfo.user_id.tenant; + } + } + + /* Need to get user info of bucket owner. */ + RGWBucketInfo bucket_info; + int ret = store->getRados()->get_bucket_info(store->svc(), + bucket_tenant, bucket_name, + bucket_info, nullptr, s->yield, s); + if (ret < 0) { + throw ret; + } + + ldpp_dout(this, 20) << "temp url user (bucket owner): " << bucket_info.owner + << dendl; + + if (user_ctl->get_info_by_uid(s, bucket_info.owner, &owner_info, s->yield) < 0) { + throw -EPERM; + } +} + +int RGWFormPost::get_params(optional_yield y) +{ + /* The parentt class extracts boundary info from the Content-Type. */ + int ret = RGWPostObj_ObjStore::get_params(y); + if (ret < 0) { + return ret; + } + + policy.create_default(s->user->get_id(), s->user->get_display_name()); + + /* Let's start parsing the HTTP body by parsing each form part step- + * by-step till encountering the first part with file data. */ + do { + struct post_form_part part; + ret = read_form_part_header(&part, stream_done); + if (ret < 0) { + return ret; + } + + if (s->cct->_conf->subsys.should_gather<ceph_subsys_rgw, 20>()) { + ldpp_dout(this, 20) << "read part header -- part.name=" + << part.name << dendl; + + for (const auto& pair : part.fields) { + ldpp_dout(this, 20) << "field.name=" << pair.first << dendl; + ldpp_dout(this, 20) << "field.val=" << pair.second.val << dendl; + ldpp_dout(this, 20) << "field.params:" << dendl; + + for (const auto& param_pair : pair.second.params) { + ldpp_dout(this, 20) << " " << param_pair.first + << " -> " << param_pair.second << dendl; + } + } + } + + if (stream_done) { + /* Unexpected here. */ + err_msg = "Malformed request"; + return -EINVAL; + } + + const auto field_iter = part.fields.find("Content-Disposition"); + if (std::end(part.fields) != field_iter && + std::end(field_iter->second.params) != field_iter->second.params.find("filename")) { + /* First data part ahead. */ + current_data_part = std::move(part); + + /* Stop the iteration. We can assume that all control parts have been + * already parsed. The rest of HTTP body should contain data parts + * only. They will be picked up by ::get_data(). */ + break; + } else { + /* Control part ahead. Receive, parse and store for later usage. */ + bool boundary; + ret = read_data(part.data, s->cct->_conf->rgw_max_chunk_size, + boundary, stream_done); + if (ret < 0) { + return ret; + } else if (! boundary) { + err_msg = "Couldn't find boundary"; + return -EINVAL; + } + + ctrl_parts[part.name] = std::move(part); + } + } while (! stream_done); + + min_len = 0; + max_len = get_max_file_size(); + + if (! current_data_part) { + err_msg = "FormPost: no files to process"; + return -EINVAL; + } + + if (! is_non_expired()) { + err_msg = "FormPost: Form Expired"; + return -EPERM; + } + + if (! is_integral()) { + err_msg = "FormPost: Invalid Signature"; + return -EPERM; + } + + return 0; +} + +std::string RGWFormPost::get_current_filename() const +{ + try { + const auto& field = current_data_part->fields.at("Content-Disposition"); + const auto iter = field.params.find("filename"); + + if (std::end(field.params) != iter) { + return prefix + iter->second; + } + } catch (std::out_of_range&) { + /* NOP */; + } + + return prefix; +} + +std::string RGWFormPost::get_current_content_type() const +{ + try { + const auto& field = current_data_part->fields.at("Content-Type"); + return field.val; + } catch (std::out_of_range&) { + /* NOP */; + } + + return std::string(); +} + +bool RGWFormPost::is_next_file_to_upload() +{ + if (! stream_done) { + /* We have at least one additional part in the body. */ + struct post_form_part part; + int r = read_form_part_header(&part, stream_done); + if (r < 0) { + return false; + } + + const auto field_iter = part.fields.find("Content-Disposition"); + if (std::end(part.fields) != field_iter) { + const auto& params = field_iter->second.params; + const auto& filename_iter = params.find("filename"); + + if (std::end(params) != filename_iter && ! filename_iter->second.empty()) { + current_data_part = std::move(part); + return true; + } + } + } + + return false; +} + +int RGWFormPost::get_data(ceph::bufferlist& bl, bool& again) +{ + bool boundary; + + int r = read_data(bl, s->cct->_conf->rgw_max_chunk_size, + boundary, stream_done); + if (r < 0) { + return r; + } + + /* Tell RGWPostObj::execute(optional_yield y) that it has some data to put. */ + again = !boundary; + + return bl.length(); +} + +void RGWFormPost::send_response() +{ + std::string redirect = get_part_str(ctrl_parts, "redirect"); + if (! redirect.empty()) { + op_ret = STATUS_REDIRECT; + } + + set_req_state_err(s, op_ret); + s->err.err_code = err_msg; + dump_errno(s); + if (! redirect.empty()) { + dump_redirect(s, redirect); + } + end_header(s, this); +} + +bool RGWFormPost::is_formpost_req(req_state* const s) +{ + std::string content_type; + std::map<std::string, std::string> params; + + parse_boundary_params(s->info.env->get("CONTENT_TYPE", ""), + content_type, params); + + return boost::algorithm::iequals(content_type, "multipart/form-data") && + params.count("boundary") > 0; +} + + +RGWOp *RGWHandler_REST_Service_SWIFT::op_get() +{ + return new RGWListBuckets_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Service_SWIFT::op_head() +{ + return new RGWStatAccount_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Service_SWIFT::op_put() +{ + if (s->info.args.exists("extract-archive")) { + return new RGWBulkUploadOp_ObjStore_SWIFT; + } + return nullptr; +} + +RGWOp *RGWHandler_REST_Service_SWIFT::op_post() +{ + if (s->info.args.exists("bulk-delete")) { + return new RGWBulkDelete_ObjStore_SWIFT; + } + return new RGWPutMetadataAccount_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Service_SWIFT::op_delete() +{ + if (s->info.args.exists("bulk-delete")) { + return new RGWBulkDelete_ObjStore_SWIFT; + } + return NULL; +} + +int RGWSwiftWebsiteHandler::serve_errordoc(const int http_ret, + const std::string error_doc, + optional_yield y) +{ + /* Try to throw it all away. */ + s->formatter->reset(); + + class RGWGetErrorPage : public RGWGetObj_ObjStore_SWIFT { + public: + RGWGetErrorPage(rgw::sal::RGWRadosStore* const store, + RGWHandler_REST* const handler, + req_state* const s, + const int http_ret) { + /* Calling a virtual from the base class is safe as the subobject should + * be properly initialized and we haven't overridden the init method. */ + init(store, s, handler); + set_get_data(true); + set_custom_http_response(http_ret); + } + + int error_handler(const int err_no, + std::string* const error_content, optional_yield y) override { + /* Enforce that any error generated while getting the error page will + * not be send to a client. This allows us to recover from the double + * fault situation by sending the original message. */ + return 0; + } + } get_errpage_op(store, handler, s, http_ret); + + if (!rgw::sal::RGWBucket::empty(s->bucket.get())) { + s->object = s->bucket->get_object(rgw_obj_key(std::to_string(http_ret) + error_doc)); + } else { + s->object = store->get_object(rgw_obj_key(std::to_string(http_ret) + error_doc)); + } + + RGWOp* newop = &get_errpage_op; + RGWRequest req(0); + return rgw_process_authenticated(handler, newop, &req, s, y, true); +} + +int RGWSwiftWebsiteHandler::error_handler(const int err_no, + std::string* const error_content, + optional_yield y) +{ + if (!s->bucket.get()) { + /* No bucket, default no-op handler */ + return err_no; + } + + const auto& ws_conf = s->bucket->get_info().website_conf; + + if (can_be_website_req() && ! ws_conf.error_doc.empty()) { + set_req_state_err(s, err_no); + return serve_errordoc(s->err.http_ret, ws_conf.error_doc, y); + } + + /* Let's go to the default, no-op handler. */ + return err_no; +} + +bool RGWSwiftWebsiteHandler::is_web_mode() const +{ + const std::string_view webmode = s->info.env->get("HTTP_X_WEB_MODE", ""); + return boost::algorithm::iequals(webmode, "true"); +} + +bool RGWSwiftWebsiteHandler::can_be_website_req() const +{ + /* Static website works only with the GET or HEAD method. Nothing more. */ + static const std::set<std::string_view> ws_methods = { "GET", "HEAD" }; + if (ws_methods.count(s->info.method) == 0) { + return false; + } + + /* We also need to handle early failures from the auth system. In such cases + * req_state::auth.identity may be empty. Let's treat that the same way as + * the anonymous access. */ + if (! s->auth.identity) { + return true; + } + + /* Swift serves websites only for anonymous requests unless client explicitly + * requested this behaviour by supplying X-Web-Mode HTTP header set to true. */ + if (s->auth.identity->is_anonymous() || is_web_mode()) { + return true; + } + + return false; +} + +RGWOp* RGWSwiftWebsiteHandler::get_ws_redirect_op() +{ + class RGWMovedPermanently: public RGWOp { + const std::string location; + public: + explicit RGWMovedPermanently(const std::string& location) + : location(location) { + } + + int verify_permission(optional_yield) override { + return 0; + } + + void execute(optional_yield) override { + op_ret = -ERR_PERMANENT_REDIRECT; + return; + } + + void send_response() override { + set_req_state_err(s, op_ret); + dump_errno(s); + dump_content_length(s, 0); + dump_redirect(s, location); + end_header(s, this); + } + + const char* name() const override { + return "RGWMovedPermanently"; + } + }; + + return new RGWMovedPermanently(s->info.request_uri + '/'); +} + +RGWOp* RGWSwiftWebsiteHandler::get_ws_index_op() +{ + /* Retarget to get obj on requested index file. */ + if (! s->object->empty()) { + s->object->set_name(s->object->get_name() + + s->bucket->get_info().website_conf.get_index_doc()); + } else { + s->object->set_name(s->bucket->get_info().website_conf.get_index_doc()); + } + s->object->set_bucket(s->bucket.get()); + + auto getop = new RGWGetObj_ObjStore_SWIFT; + getop->set_get_data(boost::algorithm::equals("GET", s->info.method)); + + return getop; +} + +RGWOp* RGWSwiftWebsiteHandler::get_ws_listing_op() +{ + class RGWWebsiteListing : public RGWListBucket_ObjStore_SWIFT { + const std::string prefix_override; + + int get_params(optional_yield) override { + prefix = prefix_override; + max = default_max; + delimiter = "/"; + return 0; + } + + void send_response() override { + /* Generate the header now. */ + set_req_state_err(s, op_ret); + dump_errno(s); + dump_container_metadata(s, s->bucket.get(), bucket_quota, + s->bucket->get_info().website_conf); + end_header(s, this, "text/html"); + if (op_ret < 0) { + return; + } + + /* Now it's the time to start generating HTML bucket listing. + * All the crazy stuff with crafting tags will be delegated to + * RGWSwiftWebsiteListingFormatter. */ + std::stringstream ss; + RGWSwiftWebsiteListingFormatter htmler(ss, prefix); + + const auto& ws_conf = s->bucket->get_info().website_conf; + htmler.generate_header(s->decoded_uri, + ws_conf.listing_css_doc); + + for (const auto& pair : common_prefixes) { + std::string subdir_name = pair.first; + if (! subdir_name.empty()) { + /* To be compliant with Swift we need to remove the trailing + * slash. */ + subdir_name.pop_back(); + } + + htmler.dump_subdir(subdir_name); + } + + for (const rgw_bucket_dir_entry& obj : objs) { + if (! common_prefixes.count(obj.key.name + '/')) { + htmler.dump_object(obj); + } + } + + htmler.generate_footer(); + dump_body(s, ss.str()); + } + public: + /* Taking prefix_override by value to leverage std::string r-value ref + * ctor and thus avoid extra memory copying/increasing ref counter. */ + explicit RGWWebsiteListing(std::string prefix_override) + : prefix_override(std::move(prefix_override)) { + } + }; + + std::string prefix = std::move(s->object->get_name()); + s->object->set_key(rgw_obj_key()); + + return new RGWWebsiteListing(std::move(prefix)); +} + +bool RGWSwiftWebsiteHandler::is_web_dir() const +{ + std::string subdir_name = url_decode(s->object->get_name()); + + /* Remove character from the subdir name if it is "/". */ + if (subdir_name.empty()) { + return false; + } else if (subdir_name.back() == '/') { + subdir_name.pop_back(); + if (subdir_name.empty()) { + return false; + } + } + + rgw::sal::RGWRadosObject obj(store, rgw_obj_key(std::move(subdir_name)), s->bucket.get()); + + /* First, get attrset of the object we'll try to retrieve. */ + RGWObjectCtx& obj_ctx = *static_cast<RGWObjectCtx *>(s->obj_ctx); + obj.set_atomic(&obj_ctx); + obj.set_prefetch_data(&obj_ctx); + + RGWObjState* state = nullptr; + if (obj.get_obj_state(s, &obj_ctx, *s->bucket, &state, s->yield, false)) { + return false; + } + + /* A nonexistent object cannot be a considered as a marker representing + * the emulation of catalog in FS hierarchy. */ + if (! state->exists) { + return false; + } + + /* Decode the content type. */ + std::string content_type; + get_contype_from_attrs(state->attrset, content_type); + + const auto& ws_conf = s->bucket->get_info().website_conf; + const std::string subdir_marker = ws_conf.subdir_marker.empty() + ? "application/directory" + : ws_conf.subdir_marker; + return subdir_marker == content_type && state->size <= 1; +} + +bool RGWSwiftWebsiteHandler::is_index_present(const std::string& index) const +{ + rgw::sal::RGWRadosObject obj(store, rgw_obj_key(index), s->bucket.get()); + + RGWObjectCtx& obj_ctx = *static_cast<RGWObjectCtx *>(s->obj_ctx); + obj.set_atomic(&obj_ctx); + obj.set_prefetch_data(&obj_ctx); + + RGWObjState* state = nullptr; + if (obj.get_obj_state(s, &obj_ctx, *s->bucket, &state, s->yield, false)) { + return false; + } + + /* A nonexistent object cannot be a considered as a viable index. We will + * try to list the bucket or - if this is impossible - return an error. */ + return state->exists; +} + +int RGWSwiftWebsiteHandler::retarget_bucket(RGWOp* op, RGWOp** new_op) +{ + ldpp_dout(s, 10) << "Starting retarget" << dendl; + RGWOp* op_override = nullptr; + + /* In Swift static web content is served if the request is anonymous or + * has X-Web-Mode HTTP header specified to true. */ + if (can_be_website_req()) { + const auto& ws_conf = s->bucket->get_info().website_conf; + const auto& index = s->bucket->get_info().website_conf.get_index_doc(); + + if (s->decoded_uri.back() != '/') { + op_override = get_ws_redirect_op(); + } else if (! index.empty() && is_index_present(index)) { + op_override = get_ws_index_op(); + } else if (ws_conf.listing_enabled) { + op_override = get_ws_listing_op(); + } + } + + if (op_override) { + handler->put_op(op); + op_override->init(store, s, handler); + + *new_op = op_override; + } else { + *new_op = op; + } + + /* Return 404 Not Found is the request has web mode enforced but we static web + * wasn't able to serve it accordingly. */ + return ! op_override && is_web_mode() ? -ENOENT : 0; +} + +int RGWSwiftWebsiteHandler::retarget_object(RGWOp* op, RGWOp** new_op) +{ + ldpp_dout(s, 10) << "Starting object retarget" << dendl; + RGWOp* op_override = nullptr; + + /* In Swift static web content is served if the request is anonymous or + * has X-Web-Mode HTTP header specified to true. */ + if (can_be_website_req() && is_web_dir()) { + const auto& ws_conf = s->bucket->get_info().website_conf; + const auto& index = s->bucket->get_info().website_conf.get_index_doc(); + + if (s->decoded_uri.back() != '/') { + op_override = get_ws_redirect_op(); + } else if (! index.empty() && is_index_present(index)) { + op_override = get_ws_index_op(); + } else if (ws_conf.listing_enabled) { + op_override = get_ws_listing_op(); + } + } else { + /* A regular request or the specified object isn't a subdirectory marker. + * We don't need any re-targeting. Error handling (like sending a custom + * error page) will be performed by error_handler of the actual RGWOp. */ + return 0; + } + + if (op_override) { + handler->put_op(op); + op_override->init(store, s, handler); + + *new_op = op_override; + } else { + *new_op = op; + } + + /* Return 404 Not Found if we aren't able to re-target for subdir marker. */ + return ! op_override ? -ENOENT : 0; +} + + +RGWOp *RGWHandler_REST_Bucket_SWIFT::get_obj_op(bool get_data) +{ + if (is_acl_op()) { + return new RGWGetACLs_ObjStore_SWIFT; + } + + if (get_data) + return new RGWListBucket_ObjStore_SWIFT; + else + return new RGWStatBucket_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_get() +{ + return get_obj_op(true); +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_head() +{ + return get_obj_op(false); +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_put() +{ + if (is_acl_op()) { + return new RGWPutACLs_ObjStore_SWIFT; + } + if(s->info.args.exists("extract-archive")) { + return new RGWBulkUploadOp_ObjStore_SWIFT; + } + return new RGWCreateBucket_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_delete() +{ + return new RGWDeleteBucket_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_post() +{ + if (RGWFormPost::is_formpost_req(s)) { + return new RGWFormPost; + } else { + return new RGWPutMetadataBucket_ObjStore_SWIFT; + } +} + +RGWOp *RGWHandler_REST_Bucket_SWIFT::op_options() +{ + return new RGWOptionsCORS_ObjStore_SWIFT; +} + + +RGWOp *RGWHandler_REST_Obj_SWIFT::get_obj_op(bool get_data) +{ + if (is_acl_op()) { + return new RGWGetACLs_ObjStore_SWIFT; + } + + RGWGetObj_ObjStore_SWIFT *get_obj_op = new RGWGetObj_ObjStore_SWIFT; + get_obj_op->set_get_data(get_data); + return get_obj_op; +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_get() +{ + return get_obj_op(true); +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_head() +{ + return get_obj_op(false); +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_put() +{ + if (is_acl_op()) { + return new RGWPutACLs_ObjStore_SWIFT; + } + if(s->info.args.exists("extract-archive")) { + return new RGWBulkUploadOp_ObjStore_SWIFT; + } + if (s->init_state.src_bucket.empty()) + return new RGWPutObj_ObjStore_SWIFT; + else + return new RGWCopyObj_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_delete() +{ + return new RGWDeleteObj_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_post() +{ + if (RGWFormPost::is_formpost_req(s)) { + return new RGWFormPost; + } else { + return new RGWPutMetadataObject_ObjStore_SWIFT; + } +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_copy() +{ + return new RGWCopyObj_ObjStore_SWIFT; +} + +RGWOp *RGWHandler_REST_Obj_SWIFT::op_options() +{ + return new RGWOptionsCORS_ObjStore_SWIFT; +} + + +int RGWHandler_REST_SWIFT::authorize(const DoutPrefixProvider *dpp, optional_yield y) +{ + return rgw::auth::Strategy::apply(dpp, auth_strategy, s, y); +} + +int RGWHandler_REST_SWIFT::postauth_init(optional_yield y) +{ + struct req_init_state* t = &s->init_state; + + /* XXX Stub this until Swift Auth sets account into URL. */ + if (g_conf()->rgw_swift_account_in_url + && s->user->get_id().id == RGW_USER_ANON_ID) { + s->bucket_tenant = s->account_name; + } else { + s->bucket_tenant = s->user->get_tenant(); + } + s->bucket_name = t->url_bucket; + + if (!s->object) { + /* Need an object, even an empty one */ + s->object = store->get_object(rgw_obj_key()); + } + + ldpp_dout(s, 10) << "s->object=" << + (!s->object->empty() ? s->object->get_key() : rgw_obj_key("<NULL>")) + << " s->bucket=" + << rgw_make_bucket_entry_name(s->bucket_tenant, s->bucket_name) + << dendl; + + int ret; + ret = rgw_validate_tenant_name(s->bucket_tenant); + if (ret) + return ret; + ret = validate_bucket_name(s->bucket_name); + if (ret) + return ret; + ret = validate_object_name(s->object->get_name()); + if (ret) + return ret; + + if (!t->src_bucket.empty()) { + /* + * We don't allow cross-tenant copy at present. It requires account + * names in the URL for Swift. + */ + s->src_tenant_name = s->user->get_tenant(); + s->src_bucket_name = t->src_bucket; + + ret = validate_bucket_name(s->src_bucket_name); + if (ret < 0) { + return ret; + } + ret = validate_object_name(s->src_object->get_name()); + if (ret < 0) { + return ret; + } + } + + return 0; +} + +int RGWHandler_REST_SWIFT::validate_bucket_name(const string& bucket) +{ + const size_t len = bucket.size(); + + if (len > MAX_BUCKET_NAME_LEN) { + /* Bucket Name too long. Generate custom error message and bind it + * to an R-value reference. */ + const auto msg = boost::str( + boost::format("Container name length of %lld longer than %lld") + % len % int(MAX_BUCKET_NAME_LEN)); + set_req_state_err(s, ERR_INVALID_BUCKET_NAME, msg); + return -ERR_INVALID_BUCKET_NAME; + } + + const auto ret = RGWHandler_REST::validate_bucket_name(bucket); + if (ret < 0) { + return ret; + } + + if (len == 0) + return 0; + + if (bucket[0] == '.') + return -ERR_INVALID_BUCKET_NAME; + + if (check_utf8(bucket.c_str(), len)) + return -ERR_INVALID_UTF8; + + const char *s = bucket.c_str(); + + for (size_t i = 0; i < len; ++i, ++s) { + if (*(unsigned char *)s == 0xff) + return -ERR_INVALID_BUCKET_NAME; + if (*(unsigned char *)s == '/') + return -ERR_INVALID_BUCKET_NAME; + } + + return 0; +} + +static void next_tok(string& str, string& tok, char delim) +{ + if (str.size() == 0) { + tok = ""; + return; + } + tok = str; + int pos = str.find(delim); + if (pos > 0) { + tok = str.substr(0, pos); + str = str.substr(pos + 1); + } else { + str = ""; + } +} + +int RGWHandler_REST_SWIFT::init_from_header(rgw::sal::RGWRadosStore* store, + struct req_state* const s, + const std::string& frontend_prefix) +{ + string req; + string first; + + s->prot_flags |= RGW_REST_SWIFT; + + char reqbuf[frontend_prefix.length() + s->decoded_uri.length() + 1]; + sprintf(reqbuf, "%s%s", frontend_prefix.c_str(), s->decoded_uri.c_str()); + const char *req_name = reqbuf; + + const char *p; + + if (*req_name == '?') { + p = req_name; + } else { + p = s->info.request_params.c_str(); + } + + s->info.args.set(p); + s->info.args.parse(s); + + /* Skip the leading slash of URL hierarchy. */ + if (req_name[0] != '/') { + return 0; + } else { + req_name++; + } + + if ('\0' == req_name[0]) { + return g_conf()->rgw_swift_url_prefix == "/" ? -ERR_BAD_URL : 0; + } + + req = req_name; + + size_t pos = req.find('/'); + if (std::string::npos != pos && g_conf()->rgw_swift_url_prefix != "/") { + bool cut_url = g_conf()->rgw_swift_url_prefix.length(); + first = req.substr(0, pos); + + if (first.compare(g_conf()->rgw_swift_url_prefix) == 0) { + if (cut_url) { + /* Rewind to the "v1/..." part. */ + next_tok(req, first, '/'); + } + } + } else if (req.compare(g_conf()->rgw_swift_url_prefix) == 0) { + s->formatter = new RGWFormatter_Plain; + return -ERR_BAD_URL; + } else { + first = req; + } + + std::string tenant_path; + if (! g_conf()->rgw_swift_tenant_name.empty()) { + tenant_path = "/AUTH_"; + tenant_path.append(g_conf()->rgw_swift_tenant_name); + } + + /* verify that the request_uri conforms with what's expected */ + char buf[g_conf()->rgw_swift_url_prefix.length() + 16 + tenant_path.length()]; + int blen; + if (g_conf()->rgw_swift_url_prefix == "/") { + blen = sprintf(buf, "/v1%s", tenant_path.c_str()); + } else { + blen = sprintf(buf, "/%s/v1%s", + g_conf()->rgw_swift_url_prefix.c_str(), tenant_path.c_str()); + } + + if (strncmp(reqbuf, buf, blen) != 0) { + return -ENOENT; + } + + int ret = allocate_formatter(s, RGW_FORMAT_PLAIN, true); + if (ret < 0) + return ret; + + string ver; + + next_tok(req, ver, '/'); + + if (!tenant_path.empty() || g_conf()->rgw_swift_account_in_url) { + string account_name; + next_tok(req, account_name, '/'); + + /* Erase all pre-defined prefixes like "AUTH_" or "KEY_". */ + const vector<string> skipped_prefixes = { "AUTH_", "KEY_" }; + + for (const auto& pfx : skipped_prefixes) { + const size_t comp_len = min(account_name.length(), pfx.length()); + if (account_name.compare(0, comp_len, pfx) == 0) { + /* Prefix is present. Drop it. */ + account_name = account_name.substr(comp_len); + break; + } + } + + if (account_name.empty()) { + return -ERR_PRECONDITION_FAILED; + } else { + s->account_name = account_name; + } + } + + next_tok(req, first, '/'); + + ldpp_dout(s, 10) << "ver=" << ver << " first=" << first << " req=" << req << dendl; + if (first.size() == 0) + return 0; + + s->info.effective_uri = "/" + first; + + // Save bucket to tide us over until token is parsed. + s->init_state.url_bucket = first; + + if (req.size()) { + s->object = store->get_object( + rgw_obj_key(req, s->info.env->get("HTTP_X_OBJECT_VERSION_ID", ""))); /* rgw swift extension */ + s->info.effective_uri.append("/" + s->object->get_name()); + } + + return 0; +} + +int RGWHandler_REST_SWIFT::init(rgw::sal::RGWRadosStore* store, struct req_state* s, + rgw::io::BasicClient *cio) +{ + struct req_init_state *t = &s->init_state; + + s->dialect = "swift"; + + std::string copy_source = s->info.env->get("HTTP_X_COPY_FROM", ""); + if (! copy_source.empty()) { + rgw_obj_key key; + bool result = RGWCopyObj::parse_copy_location(copy_source, t->src_bucket, key, s); + if (!result) + return -ERR_BAD_URL; + s->src_object = store->get_object(key); + if (!s->src_object) + return -ERR_BAD_URL; + } + + if (s->op == OP_COPY) { + std::string req_dest = s->info.env->get("HTTP_DESTINATION", ""); + if (req_dest.empty()) + return -ERR_BAD_URL; + + std::string dest_bucket_name; + rgw_obj_key dest_obj_key; + bool result = + RGWCopyObj::parse_copy_location(req_dest, dest_bucket_name, + dest_obj_key, s); + if (!result) + return -ERR_BAD_URL; + + std::string dest_object_name = dest_obj_key.name; + + /* convert COPY operation into PUT */ + t->src_bucket = t->url_bucket; + s->src_object = s->object->clone(); + t->url_bucket = dest_bucket_name; + s->object->set_name(dest_object_name); + s->op = OP_PUT; + } + + s->info.storage_class = s->info.env->get("HTTP_X_OBJECT_STORAGE_CLASS", ""); + + return RGWHandler_REST::init(store, s, cio); +} + +RGWHandler_REST* +RGWRESTMgr_SWIFT::get_handler(rgw::sal::RGWRadosStore* store, + struct req_state* const s, + const rgw::auth::StrategyRegistry& auth_registry, + const std::string& frontend_prefix) +{ + int ret = RGWHandler_REST_SWIFT::init_from_header(store, s, frontend_prefix); + if (ret < 0) { + ldpp_dout(s, 10) << "init_from_header returned err=" << ret << dendl; + return nullptr; + } + + const auto& auth_strategy = auth_registry.get_swift(); + + if (s->init_state.url_bucket.empty()) { + return new RGWHandler_REST_Service_SWIFT(auth_strategy); + } + + if (rgw::sal::RGWObject::empty(s->object.get())) { + return new RGWHandler_REST_Bucket_SWIFT(auth_strategy); + } + + return new RGWHandler_REST_Obj_SWIFT(auth_strategy); +} + +RGWHandler_REST* RGWRESTMgr_SWIFT_Info::get_handler( + rgw::sal::RGWRadosStore* store, + struct req_state* const s, + const rgw::auth::StrategyRegistry& auth_registry, + const std::string& frontend_prefix) +{ + s->prot_flags |= RGW_REST_SWIFT; + const auto& auth_strategy = auth_registry.get_swift(); + return new RGWHandler_REST_SWIFT_Info(auth_strategy); +} |