ceph/src/rgw/rgw_op.h

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab ft=cpp
   3
   4 /**
   5  * All operations via the rados gateway are carried out by
   6  * small classes known as RGWOps. This class contains a req_state
   7  * and each possible command is a subclass of this with a defined
   8  * execute() method that does whatever the subclass name implies.
   9  * These subclasses must be further subclassed (by interface type)
  10  * to provide additional virtual methods such as send_response or get_params.
  11  */
  12
  13 #ifndef CEPH_RGW_OP_H
  14 #define CEPH_RGW_OP_H
  15
  16 #include <limits.h>
  17
  18 #include <array>
  19 #include <memory>
  20 #include <string>
  21 #include <set>
  22 #include <map>
  23 #include <vector>
  24
  25 #include <boost/optional.hpp>
  26 #include <boost/utility/in_place_factory.hpp>
  27 #include <boost/function.hpp>
  28
  29 #include "common/armor.h"
  30 #include "common/mime.h"
  31 #include "common/utf8.h"
  32 #include "common/ceph_json.h"
  33 #include "common/ceph_time.h"
  34
  35 #include "rgw_common.h"
  36 #include "rgw_dmclock.h"
  37 #include "rgw_sal.h"
  38 #include "rgw_user.h"
  39 #include "rgw_bucket.h"
  40 #include "rgw_acl.h"
  41 #include "rgw_cors.h"
  42 #include "rgw_quota.h"
  43 #include "rgw_putobj.h"
  44 #include "rgw_multi.h"
  45 #include "rgw_sal.h"
  46
  47 #include "rgw_lc.h"
  48 #include "rgw_torrent.h"
  49 #include "rgw_tag.h"
  50 #include "rgw_object_lock.h"
  51 #include "cls/lock/cls_lock_client.h"
  52 #include "cls/rgw/cls_rgw_client.h"
  53 #include "rgw_public_access.h"
  54
  55 #include "services/svc_sys_obj.h"
  56 #include "services/svc_tier_rados.h"
  57
  58 #include "include/ceph_assert.h"
  59
  60 using ceph::crypto::SHA1;
  61
  62 struct req_state;
  63 class RGWOp;
  64 class RGWRados;
  65
  66
  67 namespace rgw {
  68 namespace auth {
  69 namespace registry {
  70
  71 class StrategyRegistry;
  72
  73 }
  74 }
  75 }
  76
  77 int rgw_op_get_bucket_policy_from_attr(CephContext *cct,
  78                                        rgw::sal::RGWRadosStore *store,
  79                                        RGWBucketInfo& bucket_info,
  80                                        map<string, bufferlist>& bucket_attrs,
  81                                        RGWAccessControlPolicy *policy);
  82
  83 class RGWHandler {
  84 protected:
  85   rgw::sal::RGWRadosStore* store{nullptr};
  86   struct req_state *s{nullptr};
  87
  88   int do_init_permissions();
  89   int do_read_permissions(RGWOp* op, bool only_bucket);
  90
  91 public:
  92   RGWHandler() {}
  93   virtual ~RGWHandler();
  94
  95   virtual int init(rgw::sal::RGWRadosStore* store,
  96                    struct req_state* _s,
  97                    rgw::io::BasicClient* cio);
  98
  99   virtual int init_permissions(RGWOp*) {
 100     return 0;
 101   }
 102
 103   virtual int retarget(RGWOp* op, RGWOp** new_op) {
 104     *new_op = op;
 105     return 0;
 106   }
 107
 108   virtual int read_permissions(RGWOp* op) = 0;
 109   virtual int authorize(const DoutPrefixProvider* dpp) = 0;
 110   virtual int postauth_init() = 0;
 111   virtual int error_handler(int err_no, std::string* error_content);
 112   virtual void dump(const string& code, const string& message) const {}
 113
 114   virtual bool supports_quota() {
 115     return true;
 116   }
 117 };
 118
 119
 120
 121 void rgw_bucket_object_pre_exec(struct req_state *s);
 122
 123 namespace dmc = rgw::dmclock;
 124
 125 /**
 126  * Provide the base class for all ops.
 127  */
 128 class RGWOp : public DoutPrefixProvider {
 129 protected:
 130   struct req_state *s;
 131   RGWHandler *dialect_handler;
 132   rgw::sal::RGWRadosStore *store;
 133   RGWCORSConfiguration bucket_cors;
 134   bool cors_exist;
 135   RGWQuotaInfo bucket_quota;
 136   RGWQuotaInfo user_quota;
 137   int op_ret;
 138   int do_aws4_auth_completion();
 139
 140   virtual int init_quota();
 141
 142 public:
 143   RGWOp()
 144     : s(nullptr),
 145       dialect_handler(nullptr),
 146       store(nullptr),
 147       cors_exist(false),
 148       op_ret(0) {
 149   }
 150
 151   virtual ~RGWOp() = default;
 152
 153   int get_ret() const { return op_ret; }
 154
 155   virtual int init_processing() {
 156     if (dialect_handler->supports_quota()) {
 157       op_ret = init_quota();
 158       if (op_ret < 0)
 159         return op_ret;
 160     }
 161
 162     return 0;
 163   }
 164
 165   virtual void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *dialect_handler) {
 166     this->store = store;
 167     this->s = s;
 168     this->dialect_handler = dialect_handler;
 169   }
 170   int read_bucket_cors();
 171   bool generate_cors_headers(string& origin, string& method, string& headers, string& exp_headers, unsigned *max_age);
 172
 173   virtual int verify_params() { return 0; }
 174   virtual bool prefetch_data() { return false; }
 175
 176   /* Authenticate requester -- verify its identity.
 177    *
 178    * NOTE: typically the procedure is common across all operations of the same
 179    * dialect (S3, Swift API). However, there are significant exceptions in
 180    * both APIs: browser uploads, /info and OPTIONS handlers. All of them use
 181    * different, specific authentication schema driving the need for per-op
 182    * authentication. The alternative is to duplicate parts of the method-
 183    * dispatch logic in RGWHandler::authorize() and pollute it with a lot
 184    * of special cases. */
 185   virtual int verify_requester(const rgw::auth::StrategyRegistry& auth_registry) {
 186     /* TODO(rzarzynski): rename RGWHandler::authorize to generic_authenticate. */
 187     return dialect_handler->authorize(this);
 188   }
 189   virtual int verify_permission() = 0;
 190   virtual int verify_op_mask();
 191   virtual void pre_exec() {}
 192   virtual void execute() = 0;
 193   virtual void send_response() {}
 194   virtual void complete() {
 195     send_response();
 196   }
 197   virtual const char* name() const = 0;
 198   virtual RGWOpType get_type() { return RGW_OP_UNKNOWN; }
 199
 200   virtual uint32_t op_mask() { return 0; }
 201
 202   virtual int error_handler(int err_no, string *error_content);
 203
 204   // implements DoutPrefixProvider
 205   std::ostream& gen_prefix(std::ostream& out) const override;
 206   CephContext* get_cct() const override { return s->cct; }
 207   unsigned get_subsys() const override { return ceph_subsys_rgw; }
 208
 209   virtual dmc::client_id dmclock_client() { return dmc::client_id::metadata; }
 210   virtual dmc::Cost dmclock_cost() { return 1; }
 211 };
 212
 213 class RGWDefaultResponseOp : public RGWOp {
 214 public:
 215   void send_response() override;
 216 };
 217
 218 class RGWGetObj_Filter : public RGWGetDataCB
 219 {
 220 protected:
 221   RGWGetObj_Filter *next{nullptr};
 222 public:
 223   RGWGetObj_Filter() {}
 224   explicit RGWGetObj_Filter(RGWGetObj_Filter *next): next(next) {}
 225   ~RGWGetObj_Filter() override {}
 226   /**
 227    * Passes data through filter.
 228    * Filter can modify content of bl.
 229    * When bl_len == 0 , it means 'flush
 230    */
 231   int handle_data(bufferlist& bl, off_t bl_ofs, off_t bl_len) override {
 232     if (next) {
 233       return next->handle_data(bl, bl_ofs, bl_len);
 234     }
 235     return 0;
 236   }
 237   /**
 238    * Flushes any cached data. Used by RGWGetObjFilter.
 239    * Return logic same as handle_data.
 240    */
 241   virtual int flush() {
 242     if (next) {
 243       return next->flush();
 244     }
 245     return 0;
 246   }
 247   /**
 248    * Allows filter to extend range required for successful filtering
 249    */
 250   virtual int fixup_range(off_t& ofs, off_t& end) {
 251     if (next) {
 252       return next->fixup_range(ofs, end);
 253     }
 254     return 0;
 255   }
 256 };
 257
 258 class RGWGetObj : public RGWOp {
 259 protected:
 260   seed torrent; // get torrent
 261   const char *range_str;
 262   const char *if_mod;
 263   const char *if_unmod;
 264   const char *if_match;
 265   const char *if_nomatch;
 266   uint32_t mod_zone_id;
 267   uint64_t mod_pg_ver;
 268   off_t ofs;
 269   uint64_t total_len;
 270   off_t start;
 271   off_t end;
 272   ceph::real_time mod_time;
 273   ceph::real_time lastmod;
 274   ceph::real_time unmod_time;
 275   ceph::real_time *mod_ptr;
 276   ceph::real_time *unmod_ptr;
 277   map<string, bufferlist> attrs;
 278   bool get_data;
 279   bool partial_content;
 280   bool ignore_invalid_range;
 281   bool range_parsed;
 282   bool skip_manifest;
 283   bool skip_decrypt{false};
 284   rgw_obj obj;
 285   utime_t gc_invalidate_time;
 286   bool is_slo;
 287   string lo_etag;
 288   bool rgwx_stat; /* extended rgw stat operation */
 289   string version_id;
 290
 291   // compression attrs
 292   RGWCompressionInfo cs_info;
 293   off_t first_block, last_block;
 294   off_t q_ofs, q_len;
 295   bool first_data;
 296   uint64_t cur_ofs;
 297   bufferlist waiting;
 298   uint64_t action = 0;
 299
 300   bool get_retention;
 301   bool get_legal_hold;
 302
 303   int init_common();
 304 public:
 305   RGWGetObj() {
 306     range_str = NULL;
 307     if_mod = NULL;
 308     if_unmod = NULL;
 309     if_match = NULL;
 310     if_nomatch = NULL;
 311     mod_zone_id = 0;
 312     mod_pg_ver = 0;
 313     start = 0;
 314     ofs = 0;
 315     total_len = 0;
 316     end = -1;
 317     mod_ptr = NULL;
 318     unmod_ptr = NULL;
 319     get_data = false;
 320     partial_content = false;
 321     range_parsed = false;
 322     skip_manifest = false;
 323     is_slo = false;
 324     first_block = 0;
 325     last_block = 0;
 326     q_ofs = 0;
 327     q_len = 0;
 328     first_data = true;
 329     cur_ofs = 0;
 330     get_retention = false;
 331     get_legal_hold = false;
 332  }
 333
 334   bool prefetch_data() override;
 335
 336   void set_get_data(bool get_data) {
 337     this->get_data = get_data;
 338   }
 339
 340   int verify_permission() override;
 341   void pre_exec() override;
 342   void execute() override;
 343   int parse_range();
 344   int read_user_manifest_part(
 345     rgw_bucket& bucket,
 346     const rgw_bucket_dir_entry& ent,
 347     RGWAccessControlPolicy * const bucket_acl,
 348     const boost::optional<rgw::IAM::Policy>& bucket_policy,
 349     const off_t start_ofs,
 350     const off_t end_ofs,
 351     bool swift_slo);
 352   int handle_user_manifest(const char *prefix);
 353   int handle_slo_manifest(bufferlist& bl);
 354
 355   int get_data_cb(bufferlist& bl, off_t ofs, off_t len);
 356
 357   virtual int get_params() = 0;
 358   virtual int send_response_data_error() = 0;
 359   virtual int send_response_data(bufferlist& bl, off_t ofs, off_t len) = 0;
 360
 361   const char* name() const override { return "get_obj"; }
 362   RGWOpType get_type() override { return RGW_OP_GET_OBJ; }
 363   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 364   virtual bool need_object_expiration() { return false; }
 365   /**
 366    * calculates filter used to decrypt RGW objects data
 367    */
 368   virtual int get_decrypt_filter(std::unique_ptr<RGWGetObj_Filter>* filter, RGWGetObj_Filter* cb, bufferlist* manifest_bl) {
 369     *filter = nullptr;
 370     return 0;
 371   }
 372   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
 373 };
 374
 375 class RGWGetObj_CB : public RGWGetObj_Filter
 376 {
 377   RGWGetObj *op;
 378 public:
 379   explicit RGWGetObj_CB(RGWGetObj *_op) : op(_op) {}
 380   ~RGWGetObj_CB() override {}
 381
 382   int handle_data(bufferlist& bl, off_t bl_ofs, off_t bl_len) override {
 383     return op->get_data_cb(bl, bl_ofs, bl_len);
 384   }
 385 };
 386
 387 class RGWGetObjTags : public RGWOp {
 388  protected:
 389   bufferlist tags_bl;
 390   bool has_tags{false};
 391  public:
 392   int verify_permission() override;
 393   void execute() override;
 394   void pre_exec() override;
 395
 396   virtual void send_response_data(bufferlist& bl) = 0;
 397   const char* name() const override { return "get_obj_tags"; }
 398   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 399   RGWOpType get_type() override { return RGW_OP_GET_OBJ_TAGGING; }
 400
 401 };
 402
 403 class RGWPutObjTags : public RGWOp {
 404  protected:
 405   bufferlist tags_bl;
 406  public:
 407   int verify_permission() override;
 408   void execute() override;
 409
 410   virtual void send_response() override = 0;
 411   virtual int get_params() = 0;
 412   const char* name() const override { return "put_obj_tags"; }
 413   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 414   RGWOpType get_type() override { return RGW_OP_PUT_OBJ_TAGGING; }
 415
 416 };
 417
 418 class RGWDeleteObjTags: public RGWOp {
 419  public:
 420   void pre_exec() override;
 421   int verify_permission() override;
 422   void execute() override;
 423
 424   const char* name() const override { return "delete_obj_tags"; }
 425   virtual uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
 426   RGWOpType get_type() override { return RGW_OP_DELETE_OBJ_TAGGING;}
 427 };
 428
 429 class RGWGetBucketTags : public RGWOp {
 430 protected:
 431   bufferlist tags_bl;
 432   bool has_tags{false};
 433 public:
 434   int verify_permission() override;
 435   void execute() override;
 436   void pre_exec() override;
 437
 438   virtual void send_response_data(bufferlist& bl) = 0;
 439   const char* name() const override { return "get_bucket_tags"; }
 440   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 441   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_TAGGING; }
 442 };
 443
 444 class RGWPutBucketTags : public RGWOp {
 445 protected:
 446   bufferlist tags_bl;
 447   bufferlist in_data;
 448 public:
 449   int verify_permission() override;
 450   void execute() override;
 451
 452   virtual void send_response() override = 0;
 453   virtual int get_params() = 0;
 454   const char* name() const override { return "put_bucket_tags"; }
 455   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 456   RGWOpType get_type() override { return RGW_OP_PUT_BUCKET_TAGGING; }
 457 };
 458
 459 class RGWDeleteBucketTags : public RGWOp {
 460 public:
 461   void pre_exec() override;
 462   int verify_permission() override;
 463   void execute() override;
 464
 465   const char* name() const override { return "delete_bucket_tags"; }
 466   virtual uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
 467   RGWOpType get_type() override { return RGW_OP_DELETE_BUCKET_TAGGING;}
 468 };
 469
 470 struct rgw_sync_policy_group;
 471
 472 class RGWGetBucketReplication : public RGWOp {
 473 public:
 474   int verify_permission() override;
 475   void execute() override;
 476   void pre_exec() override;
 477
 478   virtual void send_response_data() = 0;
 479   const char* name() const override { return "get_bucket_replication"; }
 480   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 481   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_REPLICATION; }
 482 };
 483
 484 class RGWPutBucketReplication : public RGWOp {
 485 protected:
 486   bufferlist in_data;
 487   std::vector<rgw_sync_policy_group> sync_policy_groups;
 488 public:
 489   int verify_permission() override;
 490   void execute() override;
 491
 492   virtual void send_response() override = 0;
 493   virtual int get_params() = 0;
 494   const char* name() const override { return "put_bucket_replication"; }
 495   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 496   RGWOpType get_type() override { return RGW_OP_PUT_BUCKET_REPLICATION; }
 497 };
 498
 499 class RGWDeleteBucketReplication : public RGWOp {
 500 protected:
 501   virtual void update_sync_policy(rgw_sync_policy_info *policy) = 0;
 502 public:
 503   void pre_exec() override;
 504   int verify_permission() override;
 505   void execute() override;
 506
 507   const char* name() const override { return "delete_bucket_replication"; }
 508   virtual uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
 509   RGWOpType get_type() override { return RGW_OP_DELETE_BUCKET_REPLICATION;}
 510 };
 511
 512 class RGWBulkDelete : public RGWOp {
 513 public:
 514   struct acct_path_t {
 515     std::string bucket_name;
 516     rgw_obj_key obj_key;
 517   };
 518
 519   struct fail_desc_t {
 520     int err;
 521     acct_path_t path;
 522   };
 523
 524   class Deleter {
 525   protected:
 526     const DoutPrefixProvider * dpp;
 527     unsigned int num_deleted;
 528     unsigned int num_unfound;
 529     std::list<fail_desc_t> failures;
 530
 531     rgw::sal::RGWRadosStore * const store;
 532     req_state * const s;
 533
 534   public:
 535     Deleter(const DoutPrefixProvider* dpp, rgw::sal::RGWRadosStore * const str, req_state * const s)
 536       : dpp(dpp),
 537         num_deleted(0),
 538         num_unfound(0),
 539         store(str),
 540         s(s) {
 541     }
 542
 543     unsigned int get_num_deleted() const {
 544       return num_deleted;
 545     }
 546
 547     unsigned int get_num_unfound() const {
 548       return num_unfound;
 549     }
 550
 551     const std::list<fail_desc_t> get_failures() const {
 552       return failures;
 553     }
 554
 555     bool verify_permission(RGWBucketInfo& binfo,
 556                            map<string, bufferlist>& battrs,
 557                            ACLOwner& bucket_owner /* out */);
 558     bool delete_single(const acct_path_t& path);
 559     bool delete_chunk(const std::list<acct_path_t>& paths);
 560   };
 561   /* End of Deleter subclass */
 562
 563   static const size_t MAX_CHUNK_ENTRIES = 1024;
 564
 565 protected:
 566   std::unique_ptr<Deleter> deleter;
 567
 568 public:
 569   RGWBulkDelete()
 570     : deleter(nullptr) {
 571   }
 572
 573   int verify_permission() override;
 574   void pre_exec() override;
 575   void execute() override;
 576
 577   virtual int get_data(std::list<acct_path_t>& items,
 578                        bool * is_truncated) = 0;
 579   void send_response() override = 0;
 580
 581   const char* name() const override { return "bulk_delete"; }
 582   RGWOpType get_type() override { return RGW_OP_BULK_DELETE; }
 583   uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
 584   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
 585 };
 586
 587 inline ostream& operator<<(ostream& out, const RGWBulkDelete::acct_path_t &o) {
 588   return out << o.bucket_name << "/" << o.obj_key;
 589 }
 590
 591
 592 class RGWBulkUploadOp : public RGWOp {
 593   boost::optional<RGWSysObjectCtx> dir_ctx;
 594
 595 protected:
 596   class fail_desc_t {
 597   public:
 598     fail_desc_t(const int err, std::string path)
 599       : err(err),
 600         path(std::move(path)) {
 601     }
 602
 603     const int err;
 604     const std::string path;
 605   };
 606
 607   static constexpr std::array<int, 2> terminal_errors = {
 608     { -EACCES, -EPERM }
 609   };
 610
 611   /* FIXME:  boost::container::small_vector<fail_desc_t, 4> failures; */
 612   std::vector<fail_desc_t> failures;
 613   size_t num_created;
 614
 615   class StreamGetter;
 616   class DecoratedStreamGetter;
 617   class AlignedStreamGetter;
 618
 619   virtual std::unique_ptr<StreamGetter> create_stream() = 0;
 620   virtual void send_response() override = 0;
 621
 622   boost::optional<std::pair<std::string, rgw_obj_key>>
 623   parse_path(const boost::string_ref& path);
 624
 625   std::pair<std::string, std::string>
 626   handle_upload_path(struct req_state *s);
 627
 628   bool handle_file_verify_permission(RGWBucketInfo& binfo,
 629                                      const rgw_obj& obj,
 630                                      std::map<std::string, ceph::bufferlist>& battrs,
 631                                      ACLOwner& bucket_owner /* out */);
 632   int handle_file(boost::string_ref path,
 633                   size_t size,
 634                   AlignedStreamGetter& body);
 635
 636   int handle_dir_verify_permission();
 637   int handle_dir(boost::string_ref path);
 638
 639 public:
 640   RGWBulkUploadOp()
 641     : num_created(0) {
 642   }
 643
 644   void init(rgw::sal::RGWRadosStore* const store,
 645             struct req_state* const s,
 646             RGWHandler* const h) override;
 647
 648   int verify_permission() override;
 649   void pre_exec() override;
 650   void execute() override;
 651
 652   const char* name() const override { return "bulk_upload"; }
 653
 654   RGWOpType get_type() override {
 655     return RGW_OP_BULK_UPLOAD;
 656   }
 657
 658   uint32_t op_mask() override {
 659     return RGW_OP_TYPE_WRITE;
 660   }
 661   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
 662 }; /* RGWBulkUploadOp */
 663
 664
 665 class RGWBulkUploadOp::StreamGetter {
 666 public:
 667   StreamGetter() = default;
 668   virtual ~StreamGetter() = default;
 669
 670   virtual ssize_t get_at_most(size_t want, ceph::bufferlist& dst) = 0;
 671   virtual ssize_t get_exactly(size_t want, ceph::bufferlist& dst) = 0;
 672 }; /* End of nested subclass StreamGetter */
 673
 674
 675 class RGWBulkUploadOp::DecoratedStreamGetter : public StreamGetter {
 676   StreamGetter& decoratee;
 677
 678 protected:
 679   StreamGetter& get_decoratee() {
 680     return decoratee;
 681   }
 682
 683 public:
 684   explicit DecoratedStreamGetter(StreamGetter& decoratee)
 685     : decoratee(decoratee) {
 686   }
 687   virtual ~DecoratedStreamGetter() = default;
 688
 689   ssize_t get_at_most(const size_t want, ceph::bufferlist& dst) override {
 690     return get_decoratee().get_at_most(want, dst);
 691   }
 692
 693   ssize_t get_exactly(const size_t want, ceph::bufferlist& dst) override {
 694     return get_decoratee().get_exactly(want, dst);
 695   }
 696 }; /* RGWBulkUploadOp::DecoratedStreamGetter */
 697
 698
 699 class RGWBulkUploadOp::AlignedStreamGetter
 700   : public RGWBulkUploadOp::DecoratedStreamGetter {
 701   size_t position;
 702   size_t length;
 703   size_t alignment;
 704
 705 public:
 706   template <typename U>
 707   AlignedStreamGetter(const size_t position,
 708                       const size_t length,
 709                       const size_t alignment,
 710                       U&& decoratee)
 711     : DecoratedStreamGetter(std::forward<U>(decoratee)),
 712       position(position),
 713       length(length),
 714       alignment(alignment) {
 715   }
 716   virtual ~AlignedStreamGetter();
 717   ssize_t get_at_most(size_t want, ceph::bufferlist& dst) override;
 718   ssize_t get_exactly(size_t want, ceph::bufferlist& dst) override;
 719 }; /* RGWBulkUploadOp::AlignedStreamGetter */
 720
 721
 722 struct RGWUsageStats {
 723   uint64_t bytes_used = 0;
 724   uint64_t bytes_used_rounded = 0;
 725   uint64_t buckets_count = 0;
 726   uint64_t objects_count = 0;
 727 };
 728
 729 #define RGW_LIST_BUCKETS_LIMIT_MAX 10000
 730
 731 class RGWListBuckets : public RGWOp {
 732 protected:
 733   bool sent_data;
 734   std::string marker;
 735   std::string end_marker;
 736   int64_t limit;
 737   uint64_t limit_max;
 738   std::map<std::string, ceph::bufferlist> attrs;
 739   bool is_truncated;
 740
 741   RGWUsageStats global_stats;
 742   std::map<std::string, RGWUsageStats> policies_stats;
 743
 744   virtual uint64_t get_default_max() const {
 745     return 1000;
 746   }
 747
 748 public:
 749   RGWListBuckets()
 750     : sent_data(false),
 751       limit(RGW_LIST_BUCKETS_LIMIT_MAX),
 752       limit_max(RGW_LIST_BUCKETS_LIMIT_MAX),
 753       is_truncated(false) {
 754   }
 755
 756   int verify_permission() override;
 757   void execute() override;
 758
 759   virtual int get_params() = 0;
 760   virtual void handle_listing_chunk(rgw::sal::RGWBucketList&& buckets) {
 761     /* The default implementation, used by e.g. S3, just generates a new
 762      * part of listing and sends it client immediately. Swift can behave
 763      * differently: when the reverse option is requested, all incoming
 764      * instances of RGWBucketList are buffered and finally reversed. */
 765     return send_response_data(buckets);
 766   }
 767   virtual void send_response_begin(bool has_buckets) = 0;
 768   virtual void send_response_data(rgw::sal::RGWBucketList& buckets) = 0;
 769   virtual void send_response_end() = 0;
 770   void send_response() override {}
 771
 772   virtual bool should_get_stats() { return false; }
 773   virtual bool supports_account_metadata() { return false; }
 774
 775   const char* name() const override { return "list_buckets"; }
 776   RGWOpType get_type() override { return RGW_OP_LIST_BUCKETS; }
 777   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 778 }; // class RGWListBuckets
 779
 780 class RGWGetUsage : public RGWOp {
 781 protected:
 782   bool sent_data;
 783   string start_date;
 784   string end_date;
 785   int show_log_entries;
 786   int show_log_sum;
 787   map<string, bool> categories;
 788   map<rgw_user_bucket, rgw_usage_log_entry> usage;
 789   map<string, rgw_usage_log_entry> summary_map;
 790   map<string, cls_user_bucket_entry> buckets_usage;
 791   cls_user_header header;
 792   RGWStorageStats stats;
 793 public:
 794   RGWGetUsage() : sent_data(false), show_log_entries(true), show_log_sum(true){
 795   }
 796
 797   int verify_permission() override;
 798   void execute() override;
 799
 800   virtual int get_params() = 0;
 801   void send_response() override {}
 802
 803   virtual bool should_get_stats() { return false; }
 804
 805   const char* name() const override { return "get_self_usage"; }
 806   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 807 };
 808
 809 class RGWStatAccount : public RGWOp {
 810 protected:
 811   RGWUsageStats global_stats;
 812   std::map<std::string, RGWUsageStats> policies_stats;
 813
 814 public:
 815   RGWStatAccount() = default;
 816
 817   int verify_permission() override;
 818   void execute() override;
 819
 820   void send_response() override = 0;
 821   const char* name() const override { return "stat_account"; }
 822   RGWOpType get_type() override { return RGW_OP_STAT_ACCOUNT; }
 823   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 824 };
 825
 826 class RGWListBucket : public RGWOp {
 827 protected:
 828   rgw::sal::RGWBucket* bucket;
 829   string prefix;
 830   rgw_obj_key marker;
 831   rgw_obj_key next_marker;
 832   rgw_obj_key end_marker;
 833   string max_keys;
 834   string delimiter;
 835   string encoding_type;
 836   bool list_versions;
 837   int max;
 838   vector<rgw_bucket_dir_entry> objs;
 839   map<string, bool> common_prefixes;
 840
 841   int default_max;
 842   bool is_truncated;
 843   bool allow_unordered;
 844
 845   int shard_id;
 846
 847   int parse_max_keys();
 848
 849 public:
 850   RGWListBucket() : bucket(nullptr), list_versions(false), max(0),
 851                     default_max(0), is_truncated(false),
 852                     allow_unordered(false), shard_id(-1) {}
 853   ~RGWListBucket() { delete bucket; }
 854   int verify_permission() override;
 855   void pre_exec() override;
 856   void execute() override;
 857
 858   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
 859     RGWOp::init(store, s, h);
 860     bucket = new rgw::sal::RGWRadosBucket(store, *s->user, s->bucket);
 861   }
 862   virtual int get_params() = 0;
 863   void send_response() override = 0;
 864   const char* name() const override { return "list_bucket"; }
 865   RGWOpType get_type() override { return RGW_OP_LIST_BUCKET; }
 866   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 867   virtual bool need_container_stats() { return false; }
 868 };
 869
 870 class RGWGetBucketLogging : public RGWOp {
 871 public:
 872   RGWGetBucketLogging() {}
 873   int verify_permission() override;
 874   void execute() override { }
 875
 876   void send_response() override = 0;
 877   const char* name() const override { return "get_bucket_logging"; }
 878   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_LOGGING; }
 879   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 880 };
 881
 882 class RGWGetBucketLocation : public RGWOp {
 883 public:
 884   RGWGetBucketLocation() {}
 885   ~RGWGetBucketLocation() override {}
 886   int verify_permission() override;
 887   void execute() override { }
 888
 889   void send_response() override = 0;
 890   const char* name() const override { return "get_bucket_location"; }
 891   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_LOCATION; }
 892   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 893 };
 894
 895 class RGWGetBucketVersioning : public RGWOp {
 896 protected:
 897   bool versioned{false};
 898   bool versioning_enabled{false};
 899   bool mfa_enabled{false};
 900 public:
 901   RGWGetBucketVersioning() = default;
 902
 903   int verify_permission() override;
 904   void pre_exec() override;
 905   void execute() override;
 906
 907   void send_response() override = 0;
 908   const char* name() const override { return "get_bucket_versioning"; }
 909   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_VERSIONING; }
 910   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 911 };
 912
 913 enum BucketVersionStatus {
 914   VersioningStatusInvalid = -1,
 915   VersioningNotChanged = 0,
 916   VersioningEnabled = 1,
 917   VersioningSuspended =2,
 918 };
 919
 920 class RGWSetBucketVersioning : public RGWOp {
 921 protected:
 922   int versioning_status;
 923   bool mfa_set_status{false};
 924   bool mfa_status{false};
 925   bufferlist in_data;
 926 public:
 927   RGWSetBucketVersioning() : versioning_status(VersioningNotChanged) {}
 928
 929   int verify_permission() override;
 930   void pre_exec() override;
 931   void execute() override;
 932
 933   virtual int get_params() { return 0; }
 934
 935   void send_response() override = 0;
 936   const char* name() const override { return "set_bucket_versioning"; }
 937   RGWOpType get_type() override { return RGW_OP_SET_BUCKET_VERSIONING; }
 938   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 939 };
 940
 941 class RGWGetBucketWebsite : public RGWOp {
 942 public:
 943   RGWGetBucketWebsite() {}
 944
 945   int verify_permission() override;
 946   void pre_exec() override;
 947   void execute() override;
 948
 949   void send_response() override = 0;
 950   const char* name() const override { return "get_bucket_website"; }
 951   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_WEBSITE; }
 952   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
 953 };
 954
 955 class RGWSetBucketWebsite : public RGWOp {
 956 protected:
 957   bufferlist in_data;
 958   RGWBucketWebsiteConf website_conf;
 959 public:
 960   RGWSetBucketWebsite() {}
 961
 962   int verify_permission() override;
 963   void pre_exec() override;
 964   void execute() override;
 965
 966   virtual int get_params() { return 0; }
 967
 968   void send_response() override = 0;
 969   const char* name() const override { return "set_bucket_website"; }
 970   RGWOpType get_type() override { return RGW_OP_SET_BUCKET_WEBSITE; }
 971   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 972 };
 973
 974 class RGWDeleteBucketWebsite : public RGWOp {
 975 public:
 976   RGWDeleteBucketWebsite() {}
 977
 978   int verify_permission() override;
 979   void pre_exec() override;
 980   void execute() override;
 981
 982   void send_response() override = 0;
 983   const char* name() const override { return "delete_bucket_website"; }
 984   RGWOpType get_type() override { return RGW_OP_SET_BUCKET_WEBSITE; }
 985   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
 986 };
 987
 988 class RGWStatBucket : public RGWOp {
 989 protected:
 990   rgw::sal::RGWBucket* bucket;
 991
 992 public:
 993   RGWStatBucket() : bucket(nullptr) {}
 994   ~RGWStatBucket() override { delete bucket; }
 995
 996   int verify_permission() override;
 997   void pre_exec() override;
 998   void execute() override;
 999
1000   void send_response() override = 0;
1001   const char* name() const override { return "stat_bucket"; }
1002   RGWOpType get_type() override { return RGW_OP_STAT_BUCKET; }
1003   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1004 };
1005
1006 class RGWCreateBucket : public RGWOp {
1007 protected:
1008   RGWAccessControlPolicy policy;
1009   string location_constraint;
1010   rgw_placement_rule placement_rule;
1011   RGWBucketInfo info;
1012   obj_version ep_objv;
1013   bool has_cors;
1014   bool relaxed_region_enforcement;
1015   bool obj_lock_enabled;
1016   RGWCORSConfiguration cors_config;
1017   boost::optional<std::string> swift_ver_location;
1018   map<string, buffer::list> attrs;
1019   set<string> rmattr_names;
1020
1021   bufferlist in_data;
1022
1023   virtual bool need_metadata_upload() const { return false; }
1024
1025 public:
1026   RGWCreateBucket() : has_cors(false), relaxed_region_enforcement(false), obj_lock_enabled(false) {}
1027
1028   void emplace_attr(std::string&& key, buffer::list&& bl) {
1029     attrs.emplace(std::move(key), std::move(bl)); /* key and bl are r-value refs */
1030   }
1031
1032   int verify_permission() override;
1033   void pre_exec() override;
1034   void execute() override;
1035   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1036     RGWOp::init(store, s, h);
1037     policy.set_ctx(s->cct);
1038     relaxed_region_enforcement =
1039         s->cct->_conf.get_val<bool>("rgw_relaxed_region_enforcement");
1040   }
1041   virtual int get_params() { return 0; }
1042   void send_response() override = 0;
1043   const char* name() const override { return "create_bucket"; }
1044   RGWOpType get_type() override { return RGW_OP_CREATE_BUCKET; }
1045   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1046 };
1047
1048 class RGWDeleteBucket : public RGWOp {
1049 protected:
1050   RGWObjVersionTracker objv_tracker;
1051
1052 public:
1053   RGWDeleteBucket() {}
1054
1055   int verify_permission() override;
1056   void pre_exec() override;
1057   void execute() override;
1058
1059   void send_response() override = 0;
1060   const char* name() const override { return "delete_bucket"; }
1061   RGWOpType get_type() override { return RGW_OP_DELETE_BUCKET; }
1062   uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
1063 };
1064
1065 struct rgw_slo_entry {
1066   string path;
1067   string etag;
1068   uint64_t size_bytes;
1069
1070   rgw_slo_entry() : size_bytes(0) {}
1071
1072   void encode(bufferlist& bl) const {
1073     ENCODE_START(1, 1, bl);
1074     encode(path, bl);
1075     encode(etag, bl);
1076     encode(size_bytes, bl);
1077     ENCODE_FINISH(bl);
1078   }
1079
1080   void decode(bufferlist::const_iterator& bl) {
1081      DECODE_START(1, bl);
1082      decode(path, bl);
1083      decode(etag, bl);
1084      decode(size_bytes, bl);
1085      DECODE_FINISH(bl);
1086   }
1087
1088   void decode_json(JSONObj *obj);
1089 };
1090 WRITE_CLASS_ENCODER(rgw_slo_entry)
1091
1092 struct RGWSLOInfo {
1093   vector<rgw_slo_entry> entries;
1094   uint64_t total_size;
1095
1096   /* in memory only */
1097   bufferlist raw_data;
1098
1099   RGWSLOInfo() : total_size(0) {}
1100   ~RGWSLOInfo() {}
1101
1102   void encode(bufferlist& bl) const {
1103     ENCODE_START(1, 1, bl);
1104     encode(entries, bl);
1105     encode(total_size, bl);
1106     ENCODE_FINISH(bl);
1107   }
1108
1109   void decode(bufferlist::const_iterator& bl) {
1110      DECODE_START(1, bl);
1111      decode(entries, bl);
1112      decode(total_size, bl);
1113      DECODE_FINISH(bl);
1114   }
1115 };
1116 WRITE_CLASS_ENCODER(RGWSLOInfo)
1117
1118 class RGWPutObj : public RGWOp {
1119 protected:
1120   seed torrent;
1121   off_t ofs;
1122   const char *supplied_md5_b64;
1123   const char *supplied_etag;
1124   const char *if_match;
1125   const char *if_nomatch;
1126   std::string copy_source;
1127   const char *copy_source_range;
1128   RGWBucketInfo copy_source_bucket_info;
1129   string copy_source_tenant_name;
1130   string copy_source_bucket_name;
1131   string copy_source_object_name;
1132   string copy_source_version_id;
1133   off_t copy_source_range_fst;
1134   off_t copy_source_range_lst;
1135   string etag;
1136   bool chunked_upload;
1137   RGWAccessControlPolicy policy;
1138   std::unique_ptr <RGWObjTags> obj_tags;
1139   const char *dlo_manifest;
1140   RGWSLOInfo *slo_info;
1141   map<string, bufferlist> attrs;
1142   ceph::real_time mtime;
1143   uint64_t olh_epoch;
1144   string version_id;
1145   bufferlist bl_aux;
1146   map<string, string> crypt_http_responses;
1147   string user_data;
1148
1149   std::string multipart_upload_id;
1150   std::string multipart_part_str;
1151   int multipart_part_num = 0;
1152
1153   boost::optional<ceph::real_time> delete_at;
1154   //append obj
1155   bool append;
1156   uint64_t position;
1157   uint64_t cur_accounted_size;
1158
1159   //object lock
1160   RGWObjectRetention *obj_retention;
1161   RGWObjectLegalHold *obj_legal_hold;
1162
1163 public:
1164   RGWPutObj() : ofs(0),
1165                 supplied_md5_b64(NULL),
1166                 supplied_etag(NULL),
1167                 if_match(NULL),
1168                 if_nomatch(NULL),
1169                 copy_source_range(NULL),
1170                 copy_source_range_fst(0),
1171                 copy_source_range_lst(0),
1172                 chunked_upload(0),
1173                 dlo_manifest(NULL),
1174                 slo_info(NULL),
1175                 olh_epoch(0),
1176                 append(false),
1177                 position(0),
1178                 cur_accounted_size(0),
1179                 obj_retention(nullptr),
1180                 obj_legal_hold(nullptr) {}
1181
1182   ~RGWPutObj() override {
1183     delete slo_info;
1184     delete obj_retention;
1185     delete obj_legal_hold;
1186   }
1187
1188   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1189     RGWOp::init(store, s, h);
1190     policy.set_ctx(s->cct);
1191   }
1192
1193   void emplace_attr(std::string&& key, buffer::list&& bl) {
1194     attrs.emplace(std::move(key), std::move(bl)); /* key and bl are r-value refs */
1195   }
1196
1197   int verify_permission() override;
1198   void pre_exec() override;
1199   void execute() override;
1200
1201   /* this is for cases when copying data from other object */
1202   virtual int get_decrypt_filter(std::unique_ptr<RGWGetObj_Filter>* filter,
1203                                  RGWGetObj_Filter* cb,
1204                                  map<string, bufferlist>& attrs,
1205                                  bufferlist* manifest_bl) {
1206     *filter = nullptr;
1207     return 0;
1208   }
1209   virtual int get_encrypt_filter(std::unique_ptr<rgw::putobj::DataProcessor> *filter,
1210                                  rgw::putobj::DataProcessor *cb) {
1211     return 0;
1212   }
1213
1214   int get_data_cb(bufferlist& bl, off_t bl_ofs, off_t bl_len);
1215   int get_data(const off_t fst, const off_t lst, bufferlist& bl);
1216
1217   virtual int get_params() = 0;
1218   virtual int get_data(bufferlist& bl) = 0;
1219   void send_response() override = 0;
1220   const char* name() const override { return "put_obj"; }
1221   RGWOpType get_type() override { return RGW_OP_PUT_OBJ; }
1222   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1223   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
1224 };
1225
1226 class RGWPostObj : public RGWOp {
1227 protected:
1228   off_t min_len;
1229   off_t max_len;
1230   int len;
1231   off_t ofs;
1232   const char *supplied_md5_b64;
1233   const char *supplied_etag;
1234   string etag;
1235   RGWAccessControlPolicy policy;
1236   map<string, bufferlist> attrs;
1237   boost::optional<ceph::real_time> delete_at;
1238
1239   /* Must be called after get_data() or the result is undefined. */
1240   virtual std::string get_current_filename() const = 0;
1241   virtual std::string get_current_content_type() const = 0;
1242   virtual bool is_next_file_to_upload() {
1243      return false;
1244   }
1245 public:
1246   RGWPostObj() : min_len(0),
1247                  max_len(LLONG_MAX),
1248                  len(0),
1249                  ofs(0),
1250                  supplied_md5_b64(nullptr),
1251                  supplied_etag(nullptr) {
1252   }
1253
1254   void emplace_attr(std::string&& key, buffer::list&& bl) {
1255     attrs.emplace(std::move(key), std::move(bl)); /* key and bl are r-value refs */
1256   }
1257
1258   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1259     RGWOp::init(store, s, h);
1260     policy.set_ctx(s->cct);
1261   }
1262
1263   int verify_permission() override;
1264   void pre_exec() override;
1265   void execute() override;
1266
1267   virtual int get_encrypt_filter(std::unique_ptr<rgw::putobj::DataProcessor> *filter,
1268                                  rgw::putobj::DataProcessor *cb) {
1269     return 0;
1270   }
1271   virtual int get_params() = 0;
1272   virtual int get_data(ceph::bufferlist& bl, bool& again) = 0;
1273   void send_response() override = 0;
1274   const char* name() const override { return "post_obj"; }
1275   RGWOpType get_type() override { return RGW_OP_POST_OBJ; }
1276   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1277   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
1278 };
1279
1280 class RGWPutMetadataAccount : public RGWOp {
1281 protected:
1282   std::set<std::string> rmattr_names;
1283   std::map<std::string, bufferlist> attrs, orig_attrs;
1284   std::map<int, std::string> temp_url_keys;
1285   RGWQuotaInfo new_quota;
1286   bool new_quota_extracted;
1287
1288   RGWObjVersionTracker acct_op_tracker;
1289
1290   RGWAccessControlPolicy policy;
1291   bool has_policy;
1292
1293 public:
1294   RGWPutMetadataAccount()
1295     : new_quota_extracted(false),
1296       has_policy(false) {
1297   }
1298
1299   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1300     RGWOp::init(store, s, h);
1301     policy.set_ctx(s->cct);
1302   }
1303   int init_processing() override;
1304   int verify_permission() override;
1305   void pre_exec() override { }
1306   void execute() override;
1307
1308   virtual int get_params() = 0;
1309   void send_response() override = 0;
1310   virtual void filter_out_temp_url(map<string, bufferlist>& add_attrs,
1311                                    const set<string>& rmattr_names,
1312                                    map<int, string>& temp_url_keys);
1313   const char* name() const override { return "put_account_metadata"; }
1314   RGWOpType get_type() override { return RGW_OP_PUT_METADATA_ACCOUNT; }
1315   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1316 };
1317
1318 class RGWPutMetadataBucket : public RGWOp {
1319 protected:
1320   map<string, buffer::list> attrs;
1321   set<string> rmattr_names;
1322   bool has_policy, has_cors;
1323   uint32_t policy_rw_mask;
1324   RGWAccessControlPolicy policy;
1325   RGWCORSConfiguration cors_config;
1326   rgw_placement_rule placement_rule;
1327   boost::optional<std::string> swift_ver_location;
1328
1329 public:
1330   RGWPutMetadataBucket()
1331     : has_policy(false), has_cors(false), policy_rw_mask(0)
1332   {}
1333
1334   void emplace_attr(std::string&& key, buffer::list&& bl) {
1335     attrs.emplace(std::move(key), std::move(bl)); /* key and bl are r-value refs */
1336   }
1337
1338   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1339     RGWOp::init(store, s, h);
1340     policy.set_ctx(s->cct);
1341   }
1342
1343   int verify_permission() override;
1344   void pre_exec() override;
1345   void execute() override;
1346
1347   virtual int get_params() = 0;
1348   void send_response() override = 0;
1349   const char* name() const override { return "put_bucket_metadata"; }
1350   RGWOpType get_type() override { return RGW_OP_PUT_METADATA_BUCKET; }
1351   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1352 };
1353
1354 class RGWPutMetadataObject : public RGWOp {
1355 protected:
1356   RGWAccessControlPolicy policy;
1357   boost::optional<ceph::real_time> delete_at;
1358   const char *dlo_manifest;
1359
1360 public:
1361   RGWPutMetadataObject()
1362     : dlo_manifest(NULL)
1363   {}
1364
1365   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1366     RGWOp::init(store, s, h);
1367     policy.set_ctx(s->cct);
1368   }
1369   int verify_permission() override;
1370   void pre_exec() override;
1371   void execute() override;
1372
1373   virtual int get_params() = 0;
1374   void send_response() override = 0;
1375   const char* name() const override { return "put_obj_metadata"; }
1376   RGWOpType get_type() override { return RGW_OP_PUT_METADATA_OBJECT; }
1377   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1378   virtual bool need_object_expiration() { return false; }
1379 };
1380
1381 class RGWDeleteObj : public RGWOp {
1382 protected:
1383   bool delete_marker;
1384   bool multipart_delete;
1385   string version_id;
1386   ceph::real_time unmod_since; /* if unmodified since */
1387   bool no_precondition_error;
1388   std::unique_ptr<RGWBulkDelete::Deleter> deleter;
1389   bool bypass_perm;
1390   bool bypass_governance_mode;
1391
1392 public:
1393   RGWDeleteObj()
1394     : delete_marker(false),
1395       multipart_delete(false),
1396       no_precondition_error(false),
1397       deleter(nullptr),
1398       bypass_perm(true),
1399       bypass_governance_mode(false) {
1400   }
1401
1402   int verify_permission() override;
1403   void pre_exec() override;
1404   void execute() override;
1405   int handle_slo_manifest(bufferlist& bl);
1406
1407   virtual int get_params() { return 0; }
1408   void send_response() override = 0;
1409   const char* name() const override { return "delete_obj"; }
1410   RGWOpType get_type() override { return RGW_OP_DELETE_OBJ; }
1411   uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
1412   virtual bool need_object_expiration() { return false; }
1413   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
1414 };
1415
1416 class RGWCopyObj : public RGWOp {
1417 protected:
1418   RGWAccessControlPolicy dest_policy;
1419   const char *if_mod;
1420   const char *if_unmod;
1421   const char *if_match;
1422   const char *if_nomatch;
1423   // Required or it is not a copy operation
1424   std::string_view copy_source;
1425   // Not actually required
1426   std::optional<std::string_view> md_directive;
1427
1428   off_t ofs;
1429   off_t len;
1430   off_t end;
1431   ceph::real_time mod_time;
1432   ceph::real_time unmod_time;
1433   ceph::real_time *mod_ptr;
1434   ceph::real_time *unmod_ptr;
1435   map<string, buffer::list> attrs;
1436   string src_tenant_name, src_bucket_name;
1437   rgw_bucket src_bucket;
1438   rgw_obj_key src_object;
1439   string dest_tenant_name, dest_bucket_name;
1440   rgw_bucket dest_bucket;
1441   string dest_object;
1442   ceph::real_time src_mtime;
1443   ceph::real_time mtime;
1444   RGWRados::AttrsMod attrs_mod;
1445   RGWBucketInfo src_bucket_info;
1446   RGWBucketInfo dest_bucket_info;
1447   string source_zone;
1448   string etag;
1449
1450   off_t last_ofs;
1451
1452   string version_id;
1453   uint64_t olh_epoch;
1454
1455   boost::optional<ceph::real_time> delete_at;
1456   bool copy_if_newer;
1457
1458   bool need_to_check_storage_class = false;
1459
1460   int init_common();
1461
1462 public:
1463   RGWCopyObj() {
1464     if_mod = NULL;
1465     if_unmod = NULL;
1466     if_match = NULL;
1467     if_nomatch = NULL;
1468     ofs = 0;
1469     len = 0;
1470     end = -1;
1471     mod_ptr = NULL;
1472     unmod_ptr = NULL;
1473     attrs_mod = RGWRados::ATTRSMOD_NONE;
1474     last_ofs = 0;
1475     olh_epoch = 0;
1476     copy_if_newer = false;
1477   }
1478
1479   static bool parse_copy_location(const boost::string_view& src,
1480                                   string& bucket_name,
1481                                   rgw_obj_key& object);
1482
1483   void emplace_attr(std::string&& key, buffer::list&& bl) {
1484     attrs.emplace(std::move(key), std::move(bl));
1485   }
1486
1487   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1488     RGWOp::init(store, s, h);
1489     dest_policy.set_ctx(s->cct);
1490   }
1491   int verify_permission() override;
1492   void pre_exec() override;
1493   void execute() override;
1494   void progress_cb(off_t ofs);
1495
1496   virtual int check_storage_class(const rgw_placement_rule& src_placement) {
1497     return 0;
1498   }
1499
1500   virtual int init_dest_policy() { return 0; }
1501   virtual int get_params() = 0;
1502   virtual void send_partial_response(off_t ofs) {}
1503   void send_response() override = 0;
1504   const char* name() const override { return "copy_obj"; }
1505   RGWOpType get_type() override { return RGW_OP_COPY_OBJ; }
1506   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1507   dmc::client_id dmclock_client() override { return dmc::client_id::data; }
1508 };
1509
1510 class RGWGetACLs : public RGWOp {
1511 protected:
1512   string acls;
1513
1514 public:
1515   RGWGetACLs() {}
1516
1517   int verify_permission() override;
1518   void pre_exec() override;
1519   void execute() override;
1520
1521   void send_response() override = 0;
1522   const char* name() const override { return "get_acls"; }
1523   RGWOpType get_type() override { return RGW_OP_GET_ACLS; }
1524   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1525 };
1526
1527 class RGWPutACLs : public RGWOp {
1528 protected:
1529   bufferlist data;
1530   ACLOwner owner;
1531
1532 public:
1533   RGWPutACLs() {}
1534   ~RGWPutACLs() override {}
1535
1536   int verify_permission() override;
1537   void pre_exec() override;
1538   void execute() override;
1539
1540   virtual int get_policy_from_state(rgw::sal::RGWRadosStore *store, struct req_state *s, stringstream& ss) { return 0; }
1541   virtual int get_params() = 0;
1542   void send_response() override = 0;
1543   const char* name() const override { return "put_acls"; }
1544   RGWOpType get_type() override { return RGW_OP_PUT_ACLS; }
1545   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1546 };
1547
1548 class RGWGetLC : public RGWOp {
1549 protected:
1550
1551 public:
1552   RGWGetLC() { }
1553   ~RGWGetLC() override { }
1554
1555   int verify_permission() override;
1556   void pre_exec() override;
1557   void execute() override = 0;
1558
1559   void send_response() override = 0;
1560   const char* name() const override { return "get_lifecycle"; }
1561   RGWOpType get_type() override { return RGW_OP_GET_LC; }
1562   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1563 };
1564
1565 class RGWPutLC : public RGWOp {
1566 protected:
1567   bufferlist data;
1568   const char *content_md5;
1569   string cookie;
1570
1571 public:
1572   RGWPutLC() {
1573     content_md5 = nullptr;
1574   }
1575   ~RGWPutLC() override {}
1576
1577   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *dialect_handler) override {
1578 #define COOKIE_LEN 16
1579     char buf[COOKIE_LEN + 1];
1580
1581     RGWOp::init(store, s, dialect_handler);
1582     gen_rand_alphanumeric(s->cct, buf, sizeof(buf) - 1);
1583     cookie = buf;
1584   }
1585
1586   int verify_permission() override;
1587   void pre_exec() override;
1588   void execute() override;
1589
1590 //  virtual int get_policy_from_state(RGWRados *store, struct req_state *s, stringstream& ss) { return 0; }
1591   virtual int get_params() = 0;
1592   void send_response() override = 0;
1593   const char* name() const override { return "put_lifecycle"; }
1594   RGWOpType get_type() override { return RGW_OP_PUT_LC; }
1595   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1596 };
1597
1598 class RGWDeleteLC : public RGWOp {
1599 public:
1600   RGWDeleteLC() = default;
1601   int verify_permission() override;
1602   void pre_exec() override;
1603   void execute() override;
1604
1605   void send_response() override = 0;
1606   const char* name() const override { return "delete_lifecycle"; }
1607   RGWOpType get_type() override { return RGW_OP_DELETE_LC; }
1608   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1609 };
1610
1611 class RGWGetCORS : public RGWOp {
1612 protected:
1613
1614 public:
1615   RGWGetCORS() {}
1616
1617   int verify_permission() override;
1618   void execute() override;
1619
1620   void send_response() override = 0;
1621   const char* name() const override { return "get_cors"; }
1622   RGWOpType get_type() override { return RGW_OP_GET_CORS; }
1623   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1624 };
1625
1626 class RGWPutCORS : public RGWOp {
1627 protected:
1628   bufferlist cors_bl;
1629   bufferlist in_data;
1630
1631 public:
1632   RGWPutCORS() {}
1633   ~RGWPutCORS() override {}
1634
1635   int verify_permission() override;
1636   void execute() override;
1637
1638   virtual int get_params() = 0;
1639   void send_response() override = 0;
1640   const char* name() const override { return "put_cors"; }
1641   RGWOpType get_type() override { return RGW_OP_PUT_CORS; }
1642   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1643 };
1644
1645 class RGWDeleteCORS : public RGWOp {
1646 protected:
1647
1648 public:
1649   RGWDeleteCORS() {}
1650
1651   int verify_permission() override;
1652   void execute() override;
1653
1654   void send_response() override = 0;
1655   const char* name() const override { return "delete_cors"; }
1656   RGWOpType get_type() override { return RGW_OP_DELETE_CORS; }
1657   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1658 };
1659
1660 class RGWOptionsCORS : public RGWOp {
1661 protected:
1662   RGWCORSRule *rule;
1663   const char *origin, *req_hdrs, *req_meth;
1664
1665 public:
1666   RGWOptionsCORS() : rule(NULL), origin(NULL),
1667                      req_hdrs(NULL), req_meth(NULL) {
1668   }
1669
1670   int verify_permission() override {return 0;}
1671   int validate_cors_request(RGWCORSConfiguration *cc);
1672   void execute() override;
1673   void get_response_params(string& allowed_hdrs, string& exp_hdrs, unsigned *max_age);
1674   void send_response() override = 0;
1675   const char* name() const override { return "options_cors"; }
1676   RGWOpType get_type() override { return RGW_OP_OPTIONS_CORS; }
1677   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1678 };
1679
1680 class RGWGetRequestPayment : public RGWOp {
1681 protected:
1682   bool requester_pays;
1683
1684 public:
1685   RGWGetRequestPayment() : requester_pays(0) {}
1686
1687   int verify_permission() override;
1688   void pre_exec() override;
1689   void execute() override;
1690
1691   void send_response() override = 0;
1692   const char* name() const override { return "get_request_payment"; }
1693   RGWOpType get_type() override { return RGW_OP_GET_REQUEST_PAYMENT; }
1694   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1695 };
1696
1697 class RGWSetRequestPayment : public RGWOp {
1698 protected:
1699   bool requester_pays;
1700   bufferlist in_data;
1701 public:
1702  RGWSetRequestPayment() : requester_pays(false) {}
1703
1704   int verify_permission() override;
1705   void pre_exec() override;
1706   void execute() override;
1707
1708   virtual int get_params() { return 0; }
1709
1710   void send_response() override = 0;
1711   const char* name() const override { return "set_request_payment"; }
1712   RGWOpType get_type() override { return RGW_OP_SET_REQUEST_PAYMENT; }
1713   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1714 };
1715
1716 class RGWInitMultipart : public RGWOp {
1717 protected:
1718   string upload_id;
1719   RGWAccessControlPolicy policy;
1720   ceph::real_time mtime;
1721
1722 public:
1723   RGWInitMultipart() {}
1724
1725   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1726     RGWOp::init(store, s, h);
1727     policy.set_ctx(s->cct);
1728   }
1729   int verify_permission() override;
1730   void pre_exec() override;
1731   void execute() override;
1732
1733   virtual int get_params() = 0;
1734   void send_response() override = 0;
1735   const char* name() const override { return "init_multipart"; }
1736   RGWOpType get_type() override { return RGW_OP_INIT_MULTIPART; }
1737   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1738   virtual int prepare_encryption(map<string, bufferlist>& attrs) { return 0; }
1739 };
1740
1741 class RGWCompleteMultipart : public RGWOp {
1742 protected:
1743   string upload_id;
1744   string etag;
1745   string version_id;
1746   bufferlist data;
1747
1748   struct MPSerializer {
1749     librados::IoCtx ioctx;
1750     rados::cls::lock::Lock lock;
1751     librados::ObjectWriteOperation op;
1752     std::string oid;
1753     bool locked;
1754
1755     MPSerializer() : lock("RGWCompleteMultipart"), locked(false)
1756       {}
1757
1758     int try_lock(const std::string& oid, utime_t dur);
1759
1760     int unlock() {
1761       return lock.unlock(&ioctx, oid);
1762     }
1763
1764     void clear_locked() {
1765       locked = false;
1766     }
1767   } serializer;
1768
1769 public:
1770   RGWCompleteMultipart() {}
1771   ~RGWCompleteMultipart() override {}
1772
1773   int verify_permission() override;
1774   void pre_exec() override;
1775   void execute() override;
1776   void complete() override;
1777
1778   virtual int get_params() = 0;
1779   void send_response() override = 0;
1780   const char* name() const override { return "complete_multipart"; }
1781   RGWOpType get_type() override { return RGW_OP_COMPLETE_MULTIPART; }
1782   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
1783 };
1784
1785 class RGWAbortMultipart : public RGWOp {
1786 public:
1787   RGWAbortMultipart() {}
1788
1789   int verify_permission() override;
1790   void pre_exec() override;
1791   void execute() override;
1792
1793   void send_response() override = 0;
1794   const char* name() const override { return "abort_multipart"; }
1795   RGWOpType get_type() override { return RGW_OP_ABORT_MULTIPART; }
1796   uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
1797 };
1798
1799 class RGWListMultipart : public RGWOp {
1800 protected:
1801   string upload_id;
1802   map<uint32_t, RGWUploadPartInfo> parts;
1803   int max_parts;
1804   int marker;
1805   RGWAccessControlPolicy policy;
1806   bool truncated;
1807
1808 public:
1809   RGWListMultipart() {
1810     max_parts = 1000;
1811     marker = 0;
1812     truncated = false;
1813   }
1814
1815   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1816     RGWOp::init(store, s, h);
1817     policy = RGWAccessControlPolicy(s->cct);
1818   }
1819   int verify_permission() override;
1820   void pre_exec() override;
1821   void execute() override;
1822
1823   virtual int get_params() = 0;
1824   void send_response() override = 0;
1825   const char* name() const override { return "list_multipart"; }
1826   RGWOpType get_type() override { return RGW_OP_LIST_MULTIPART; }
1827   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1828 };
1829
1830 struct RGWMultipartUploadEntry {
1831   rgw_bucket_dir_entry obj;
1832   RGWMPObj mp;
1833
1834   friend std::ostream& operator<<(std::ostream& out,
1835                                   const RGWMultipartUploadEntry& e) {
1836     constexpr char quote = '"';
1837     return out << "RGWMultipartUploadEntry{ obj.key=" <<
1838       quote << e.obj.key << quote << " mp=" << e.mp << " }";
1839   }
1840 };
1841
1842 class RGWListBucketMultiparts : public RGWOp {
1843 protected:
1844   string prefix;
1845   RGWMPObj marker;
1846   RGWMultipartUploadEntry next_marker;
1847   int max_uploads;
1848   string delimiter;
1849   vector<RGWMultipartUploadEntry> uploads;
1850   map<string, bool> common_prefixes;
1851   bool is_truncated;
1852   int default_max;
1853   bool encode_url {false};
1854
1855 public:
1856   RGWListBucketMultiparts() {
1857     max_uploads = 0;
1858     is_truncated = false;
1859     default_max = 0;
1860   }
1861
1862   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
1863     RGWOp::init(store, s, h);
1864     max_uploads = default_max;
1865   }
1866
1867   int verify_permission() override;
1868   void pre_exec() override;
1869   void execute() override;
1870
1871   virtual int get_params() = 0;
1872   void send_response() override = 0;
1873   const char* name() const override { return "list_bucket_multiparts"; }
1874   RGWOpType get_type() override { return RGW_OP_LIST_BUCKET_MULTIPARTS; }
1875   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1876 };
1877
1878
1879 class RGWGetCrossDomainPolicy : public RGWOp {
1880 public:
1881   RGWGetCrossDomainPolicy() = default;
1882   ~RGWGetCrossDomainPolicy() override = default;
1883
1884   int verify_permission() override {
1885     return 0;
1886   }
1887
1888   void execute() override {
1889     op_ret = 0;
1890   }
1891
1892   const char* name() const override { return "get_crossdomain_policy"; }
1893
1894   RGWOpType get_type() override {
1895     return RGW_OP_GET_CROSS_DOMAIN_POLICY;
1896   }
1897
1898   uint32_t op_mask() override {
1899     return RGW_OP_TYPE_READ;
1900   }
1901 };
1902
1903
1904 class RGWGetHealthCheck : public RGWOp {
1905 public:
1906   RGWGetHealthCheck() = default;
1907   ~RGWGetHealthCheck() override = default;
1908
1909   int verify_permission() override {
1910     return 0;
1911   }
1912
1913   void execute() override;
1914
1915   const char* name() const override { return "get_health_check"; }
1916
1917   RGWOpType get_type() override {
1918     return RGW_OP_GET_HEALTH_CHECK;
1919   }
1920
1921   uint32_t op_mask() override {
1922     return RGW_OP_TYPE_READ;
1923   }
1924 };
1925
1926
1927 class RGWDeleteMultiObj : public RGWOp {
1928 protected:
1929   bufferlist data;
1930   rgw_bucket bucket;
1931   bool quiet;
1932   bool status_dumped;
1933   bool acl_allowed = false;
1934
1935 public:
1936   RGWDeleteMultiObj() {
1937     quiet = false;
1938     status_dumped = false;
1939   }
1940   int verify_permission() override;
1941   void pre_exec() override;
1942   void execute() override;
1943
1944   virtual int get_params() = 0;
1945   virtual void send_status() = 0;
1946   virtual void begin_response() = 0;
1947   virtual void send_partial_response(rgw_obj_key& key, bool delete_marker,
1948                                      const string& marker_version_id, int ret) = 0;
1949   virtual void end_response() = 0;
1950   const char* name() const override { return "multi_object_delete"; }
1951   RGWOpType get_type() override { return RGW_OP_DELETE_MULTI_OBJ; }
1952   uint32_t op_mask() override { return RGW_OP_TYPE_DELETE; }
1953 };
1954
1955 class RGWInfo: public RGWOp {
1956 public:
1957   RGWInfo() = default;
1958   ~RGWInfo() override = default;
1959
1960   int verify_permission() override { return 0; }
1961   const char* name() const override { return "get info"; }
1962   RGWOpType get_type() override { return RGW_OP_GET_INFO; }
1963   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
1964 };
1965
1966 extern int rgw_build_bucket_policies(rgw::sal::RGWRadosStore* store, struct req_state* s);
1967 extern int rgw_build_object_policies(rgw::sal::RGWRadosStore *store, struct req_state *s,
1968                                      bool prefetch_data);
1969 extern void rgw_build_iam_environment(rgw::sal::RGWRadosStore* store,
1970                                                                           struct req_state* s);
1971 extern vector<rgw::IAM::Policy> get_iam_user_policy_from_attr(CephContext* cct,
1972                         rgw::sal::RGWRadosStore* store,
1973                         map<string, bufferlist>& attrs,
1974                         const string& tenant);
1975
1976 static inline int get_system_versioning_params(req_state *s,
1977                                               uint64_t *olh_epoch,
1978                                               string *version_id)
1979 {
1980   if (!s->system_request) {
1981     return 0;
1982   }
1983
1984   if (olh_epoch) {
1985     string epoch_str = s->info.args.get(RGW_SYS_PARAM_PREFIX "versioned-epoch");
1986     if (!epoch_str.empty()) {
1987       string err;
1988       *olh_epoch = strict_strtol(epoch_str.c_str(), 10, &err);
1989       if (!err.empty()) {
1990         lsubdout(s->cct, rgw, 0) << "failed to parse versioned-epoch param"
1991                                  << dendl;
1992         return -EINVAL;
1993       }
1994     }
1995   }
1996
1997   if (version_id) {
1998     *version_id = s->info.args.get(RGW_SYS_PARAM_PREFIX "version-id");
1999   }
2000
2001   return 0;
2002 } /* get_system_versioning_params */
2003
2004 static inline void format_xattr(std::string &xattr)
2005 {
2006   /* If the extended attribute is not valid UTF-8, we encode it using
2007    * quoted-printable encoding.
2008    */
2009   if ((check_utf8(xattr.c_str(), xattr.length()) != 0) ||
2010       (check_for_control_characters(xattr.c_str(), xattr.length()) != 0)) {
2011     static const char MIME_PREFIX_STR[] = "=?UTF-8?Q?";
2012     static const int MIME_PREFIX_LEN = sizeof(MIME_PREFIX_STR) - 1;
2013     static const char MIME_SUFFIX_STR[] = "?=";
2014     static const int MIME_SUFFIX_LEN = sizeof(MIME_SUFFIX_STR) - 1;
2015     int mlen = mime_encode_as_qp(xattr.c_str(), NULL, 0);
2016     char *mime = new char[MIME_PREFIX_LEN + mlen + MIME_SUFFIX_LEN + 1];
2017     strcpy(mime, MIME_PREFIX_STR);
2018     mime_encode_as_qp(xattr.c_str(), mime + MIME_PREFIX_LEN, mlen);
2019     strcpy(mime + MIME_PREFIX_LEN + (mlen - 1), MIME_SUFFIX_STR);
2020     xattr.assign(mime);
2021     delete [] mime;
2022   }
2023 } /* format_xattr */
2024
2025 /**
2026  * Get the HTTP request metadata out of the req_state as a
2027  * map(<attr_name, attr_contents>, where attr_name is RGW_ATTR_PREFIX.HTTP_NAME)
2028  * s: The request state
2029  * attrs: will be filled up with attrs mapped as <attr_name, attr_contents>
2030  * On success returns 0.
2031  * On failure returns a negative error code.
2032  *
2033  */
2034 static inline int rgw_get_request_metadata(CephContext* const cct,
2035                                            struct req_info& info,
2036                                            std::map<std::string, ceph::bufferlist>& attrs,
2037                                            const bool allow_empty_attrs = true)
2038 {
2039   static const std::set<std::string> blacklisted_headers = {
2040       "x-amz-server-side-encryption-customer-algorithm",
2041       "x-amz-server-side-encryption-customer-key",
2042       "x-amz-server-side-encryption-customer-key-md5",
2043       "x-amz-storage-class"
2044   };
2045
2046   size_t valid_meta_count = 0;
2047   for (auto& kv : info.x_meta_map) {
2048     const std::string& name = kv.first;
2049     std::string& xattr = kv.second;
2050
2051     if (blacklisted_headers.count(name) == 1) {
2052       lsubdout(cct, rgw, 10) << "skipping x>> " << name << dendl;
2053       continue;
2054     } else if (allow_empty_attrs || !xattr.empty()) {
2055       lsubdout(cct, rgw, 10) << "x>> " << name << ":" << xattr << dendl;
2056       format_xattr(xattr);
2057
2058       std::string attr_name(RGW_ATTR_PREFIX);
2059       attr_name.append(name);
2060
2061       /* Check roughly whether we aren't going behind the limit on attribute
2062        * name. Passing here doesn't guarantee that an OSD will accept that
2063        * as ObjectStore::get_max_attr_name_length() can set the limit even
2064        * lower than the "osd_max_attr_name_len" configurable.  */
2065       const auto max_attr_name_len = cct->_conf->rgw_max_attr_name_len;
2066       if (max_attr_name_len && attr_name.length() > max_attr_name_len) {
2067         return -ENAMETOOLONG;
2068       }
2069
2070       /* Similar remarks apply to the check for value size. We're veryfing
2071        * it early at the RGW's side as it's being claimed in /info. */
2072       const auto max_attr_size = cct->_conf->rgw_max_attr_size;
2073       if (max_attr_size && xattr.length() > max_attr_size) {
2074         return -EFBIG;
2075       }
2076
2077       /* Swift allows administrators to limit the number of metadats items
2078        * send _in a single request_. */
2079       const auto max_attrs_num_in_req = cct->_conf->rgw_max_attrs_num_in_req;
2080       if (max_attrs_num_in_req &&
2081           ++valid_meta_count > max_attrs_num_in_req) {
2082         return -E2BIG;
2083       }
2084
2085       auto rval = attrs.emplace(std::move(attr_name), ceph::bufferlist());
2086       /* At the moment the value of the freshly created attribute key-value
2087        * pair is an empty bufferlist. */
2088
2089       ceph::bufferlist& bl = rval.first->second;
2090       bl.append(xattr.c_str(), xattr.size() + 1);
2091     }
2092   }
2093
2094   return 0;
2095 } /* rgw_get_request_metadata */
2096
2097 static inline void encode_delete_at_attr(boost::optional<ceph::real_time> delete_at,
2098                                         map<string, bufferlist>& attrs)
2099 {
2100   if (delete_at == boost::none) {
2101     return;
2102   }
2103
2104   bufferlist delatbl;
2105   encode(*delete_at, delatbl);
2106   attrs[RGW_ATTR_DELETE_AT] = delatbl;
2107 } /* encode_delete_at_attr */
2108
2109 static inline void encode_obj_tags_attr(RGWObjTags* obj_tags, map<string, bufferlist>& attrs)
2110 {
2111   if (obj_tags == nullptr){
2112     // we assume the user submitted a tag format which we couldn't parse since
2113     // this wouldn't be parsed later by get/put obj tags, lets delete if the
2114     // attr was populated
2115     return;
2116   }
2117
2118   bufferlist tagsbl;
2119   obj_tags->encode(tagsbl);
2120   attrs[RGW_ATTR_TAGS] = tagsbl;
2121 }
2122
2123 static inline int encode_dlo_manifest_attr(const char * const dlo_manifest,
2124                                           map<string, bufferlist>& attrs)
2125 {
2126   string dm = dlo_manifest;
2127
2128   if (dm.find('/') == string::npos) {
2129     return -EINVAL;
2130   }
2131
2132   bufferlist manifest_bl;
2133   manifest_bl.append(dlo_manifest, strlen(dlo_manifest) + 1);
2134   attrs[RGW_ATTR_USER_MANIFEST] = manifest_bl;
2135
2136   return 0;
2137 } /* encode_dlo_manifest_attr */
2138
2139 static inline void complete_etag(MD5& hash, string *etag)
2140 {
2141   char etag_buf[CEPH_CRYPTO_MD5_DIGESTSIZE];
2142   char etag_buf_str[CEPH_CRYPTO_MD5_DIGESTSIZE * 2 + 16];
2143
2144   hash.Final((unsigned char *)etag_buf);
2145   buf_to_hex((const unsigned char *)etag_buf, CEPH_CRYPTO_MD5_DIGESTSIZE,
2146             etag_buf_str);
2147
2148   *etag = etag_buf_str;
2149 } /* complete_etag */
2150
2151 class RGWSetAttrs : public RGWOp {
2152 protected:
2153   map<string, buffer::list> attrs;
2154
2155 public:
2156   RGWSetAttrs() {}
2157   ~RGWSetAttrs() override {}
2158
2159   void emplace_attr(std::string&& key, buffer::list&& bl) {
2160     attrs.emplace(std::move(key), std::move(bl));
2161   }
2162
2163   int verify_permission() override;
2164   void pre_exec() override;
2165   void execute() override;
2166
2167   virtual int get_params() = 0;
2168   void send_response() override = 0;
2169   const char* name() const override { return "set_attrs"; }
2170   RGWOpType get_type() override { return RGW_OP_SET_ATTRS; }
2171   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2172 };
2173
2174 class RGWGetObjLayout : public RGWOp {
2175 protected:
2176   RGWObjManifest *manifest{nullptr};
2177   rgw_raw_obj head_obj;
2178
2179 public:
2180   RGWGetObjLayout() {
2181   }
2182
2183   int check_caps(RGWUserCaps& caps) {
2184     return caps.check_cap("admin", RGW_CAP_READ);
2185   }
2186   int verify_permission() override {
2187     return check_caps(s->user->get_info().caps);
2188   }
2189   void pre_exec() override;
2190   void execute() override;
2191
2192   const char* name() const override { return "get_obj_layout"; }
2193   virtual RGWOpType get_type() override { return RGW_OP_GET_OBJ_LAYOUT; }
2194   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2195 };
2196
2197 class RGWPutBucketPolicy : public RGWOp {
2198   bufferlist data;
2199 public:
2200   RGWPutBucketPolicy() = default;
2201   ~RGWPutBucketPolicy() {
2202   }
2203   void send_response() override;
2204   int verify_permission() override;
2205   uint32_t op_mask() override {
2206     return RGW_OP_TYPE_WRITE;
2207   }
2208   void execute() override;
2209   int get_params();
2210   const char* name() const override { return "put_bucket_policy"; }
2211   RGWOpType get_type() override {
2212     return RGW_OP_PUT_BUCKET_POLICY;
2213   }
2214 };
2215
2216 class RGWGetBucketPolicy : public RGWOp {
2217   buffer::list policy;
2218 public:
2219   RGWGetBucketPolicy() = default;
2220   void send_response() override;
2221   int verify_permission() override;
2222   uint32_t op_mask() override {
2223     return RGW_OP_TYPE_READ;
2224   }
2225   void execute() override;
2226   const char* name() const override { return "get_bucket_policy"; }
2227   RGWOpType get_type() override {
2228     return RGW_OP_GET_BUCKET_POLICY;
2229   }
2230 };
2231
2232 class RGWDeleteBucketPolicy : public RGWOp {
2233 public:
2234   RGWDeleteBucketPolicy() = default;
2235   void send_response() override;
2236   int verify_permission() override;
2237   uint32_t op_mask() override {
2238     return RGW_OP_TYPE_WRITE;
2239   }
2240   void execute() override;
2241   int get_params();
2242   const char* name() const override { return "delete_bucket_policy"; }
2243   RGWOpType get_type() override {
2244     return RGW_OP_DELETE_BUCKET_POLICY;
2245   }
2246 };
2247
2248 class RGWPutBucketObjectLock : public RGWOp {
2249 protected:
2250   bufferlist data;
2251   bufferlist obj_lock_bl;
2252   RGWObjectLock obj_lock;
2253 public:
2254   RGWPutBucketObjectLock() = default;
2255   ~RGWPutBucketObjectLock() {}
2256   int verify_permission() override;
2257   void pre_exec() override;
2258   void execute() override;
2259   virtual void send_response() = 0;
2260   virtual int get_params() = 0;
2261   const char* name() const override { return "put_bucket_object_lock"; }
2262   RGWOpType get_type() override { return RGW_OP_PUT_BUCKET_OBJ_LOCK; }
2263   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2264 };
2265
2266 class RGWGetBucketObjectLock : public RGWOp {
2267 public:
2268   int verify_permission() override;
2269   void pre_exec() override;
2270   void execute() override;
2271   virtual void send_response() = 0;
2272   const char* name() const override {return "get_bucket_object_lock"; }
2273   RGWOpType get_type() override { return RGW_OP_GET_BUCKET_OBJ_LOCK; }
2274   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2275 };
2276
2277 class RGWPutObjRetention : public RGWOp {
2278 protected:
2279   bufferlist data;
2280   RGWObjectRetention obj_retention;
2281   bool bypass_perm;
2282   bool bypass_governance_mode;
2283 public:
2284   RGWPutObjRetention():bypass_perm(true), bypass_governance_mode(false) {}
2285   int verify_permission() override;
2286   void pre_exec() override;
2287   void execute() override;
2288   virtual void send_response() override = 0;
2289   virtual int get_params() = 0;
2290   const char* name() const override { return "put_obj_retention"; }
2291   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2292   RGWOpType get_type() override { return RGW_OP_PUT_OBJ_RETENTION; }
2293 };
2294
2295 class RGWGetObjRetention : public RGWOp {
2296 protected:
2297   RGWObjectRetention obj_retention;
2298 public:
2299   int verify_permission() override;
2300   void pre_exec() override;
2301   void execute() override;
2302   virtual void send_response() = 0;
2303   const char* name() const override {return "get_obj_retention"; }
2304   RGWOpType get_type() override { return RGW_OP_GET_OBJ_RETENTION; }
2305   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2306 };
2307
2308 class RGWPutObjLegalHold : public RGWOp {
2309 protected:
2310   bufferlist data;
2311   RGWObjectLegalHold obj_legal_hold;
2312 public:
2313   int verify_permission() override;
2314   void pre_exec() override;
2315   void execute() override;
2316   virtual void send_response() override = 0;
2317   virtual int get_params() = 0;
2318   const char* name() const override { return "put_obj_legal_hold"; }
2319   uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2320   RGWOpType get_type() override { return RGW_OP_PUT_OBJ_LEGAL_HOLD; }
2321 };
2322
2323 class RGWGetObjLegalHold : public RGWOp {
2324 protected:
2325   RGWObjectLegalHold obj_legal_hold;
2326 public:
2327   int verify_permission() override;
2328   void pre_exec() override;
2329   void execute() override;
2330   virtual void send_response() = 0;
2331   const char* name() const override {return "get_obj_legal_hold"; }
2332   RGWOpType get_type() override { return RGW_OP_GET_OBJ_LEGAL_HOLD; }
2333   uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2334 };
2335
2336
2337 class RGWConfigBucketMetaSearch : public RGWOp {
2338 protected:
2339   std::map<std::string, uint32_t> mdsearch_config;
2340 public:
2341   RGWConfigBucketMetaSearch() {}
2342
2343   int verify_permission() override;
2344   void pre_exec() override;
2345   void execute() override;
2346
2347   virtual int get_params() = 0;
2348   const char* name() const override { return "config_bucket_meta_search"; }
2349   virtual RGWOpType get_type() override { return RGW_OP_CONFIG_BUCKET_META_SEARCH; }
2350   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2351 };
2352
2353 class RGWGetBucketMetaSearch : public RGWOp {
2354 public:
2355   RGWGetBucketMetaSearch() {}
2356
2357   int verify_permission() override;
2358   void pre_exec() override;
2359   void execute() override {}
2360
2361   const char* name() const override { return "get_bucket_meta_search"; }
2362   virtual RGWOpType get_type() override { return RGW_OP_GET_BUCKET_META_SEARCH; }
2363   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2364 };
2365
2366 class RGWDelBucketMetaSearch : public RGWOp {
2367 public:
2368   RGWDelBucketMetaSearch() {}
2369
2370   int verify_permission() override;
2371   void pre_exec() override;
2372   void execute() override;
2373
2374   const char* name() const override { return "delete_bucket_meta_search"; }
2375   virtual RGWOpType delete_type() { return RGW_OP_DEL_BUCKET_META_SEARCH; }
2376   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2377 };
2378
2379 class RGWGetClusterStat : public RGWOp {
2380 protected:
2381   struct rados_cluster_stat_t stats_op;
2382 public:
2383   RGWGetClusterStat() {}
2384
2385   void init(rgw::sal::RGWRadosStore *store, struct req_state *s, RGWHandler *h) override {
2386     RGWOp::init(store, s, h);
2387   }
2388   int verify_permission() override {return 0;}
2389   virtual void send_response() override = 0;
2390   virtual int get_params() = 0;
2391   void execute() override;
2392   const char* name() const override { return "get_cluster_stat"; }
2393   dmc::client_id dmclock_client() override { return dmc::client_id::admin; }
2394 };
2395
2396 class RGWGetBucketPolicyStatus : public RGWOp {
2397 protected:
2398   bool isPublic {false};
2399 public:
2400   int verify_permission() override;
2401   const char* name() const override { return "get_bucket_policy_status"; }
2402   virtual RGWOpType get_type() override { return RGW_OP_GET_BUCKET_POLICY_STATUS; }
2403   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2404   void execute() override;
2405   dmc::client_id dmclock_client() override { return dmc::client_id::metadata; }
2406 };
2407
2408 class RGWPutBucketPublicAccessBlock : public RGWOp {
2409 protected:
2410   bufferlist data;
2411   PublicAccessBlockConfiguration access_conf;
2412 public:
2413   int verify_permission() override;
2414   const char* name() const override { return "put_bucket_public_access_block";}
2415   virtual RGWOpType get_type() override { return RGW_OP_PUT_BUCKET_PUBLIC_ACCESS_BLOCK; }
2416   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2417   int get_params();
2418   void execute() override;
2419   dmc::client_id dmclock_client() override { return dmc::client_id::metadata; }
2420 };
2421
2422 class RGWGetBucketPublicAccessBlock : public RGWOp {
2423 protected:
2424   PublicAccessBlockConfiguration access_conf;
2425 public:
2426   int verify_permission() override;
2427   const char* name() const override { return "get_bucket_public_access_block";}
2428   virtual RGWOpType get_type() override { return RGW_OP_GET_BUCKET_PUBLIC_ACCESS_BLOCK; }
2429   virtual uint32_t op_mask() override { return RGW_OP_TYPE_READ; }
2430   int get_params();
2431   void execute() override;
2432   dmc::client_id dmclock_client() override { return dmc::client_id::metadata; }
2433 };
2434
2435 class RGWDeleteBucketPublicAccessBlock : public RGWOp {
2436 protected:
2437   PublicAccessBlockConfiguration access_conf;
2438 public:
2439   int verify_permission() override;
2440   const char* name() const override { return "delete_bucket_public_access_block";}
2441   virtual RGWOpType get_type() override { return RGW_OP_DELETE_BUCKET_PUBLIC_ACCESS_BLOCK; }
2442   virtual uint32_t op_mask() override { return RGW_OP_TYPE_WRITE; }
2443   int get_params();
2444   void execute() override;
2445   void send_response() override;
2446   dmc::client_id dmclock_client() override { return dmc::client_id::metadata; }
2447 };
2448
2449 static inline int parse_value_and_bound(
2450     const string &input,
2451     int &output,
2452     const long lower_bound,
2453     const long upper_bound,
2454     const long default_val)
2455 {
2456   if (!input.empty()) {
2457     char *endptr;
2458     output = strtol(input.c_str(), &endptr, 10);
2459     if (endptr) {
2460       if (endptr == input.c_str()) return -EINVAL;
2461       while (*endptr && isspace(*endptr)) // ignore white space
2462         endptr++;
2463       if (*endptr) {
2464         return -EINVAL;
2465       }
2466     }
2467     if(output > upper_bound) {
2468       output = upper_bound;
2469     }
2470     if(output < lower_bound) {
2471       output = lower_bound;
2472     }
2473   } else {
2474     output = default_val;
2475   }
2476
2477   return 0;
2478 }
2479
2480 int forward_request_to_master(struct req_state *s, obj_version *objv, rgw::sal::RGWRadosStore *store,
2481                               bufferlist& in_data, JSONParser *jp, req_info *forward_info = nullptr);
2482
2483 #endif /* CEPH_RGW_OP_H */