ceph/src/rgw/rgw_rest_opstate.cc

   1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
   2 // vim: ts=8 sw=2 smarttab
   3 /*
   4  * Ceph - scalable distributed file system
   5  *
   6  * Copyright (C) 2013 eNovance SAS <licensing@enovance.com>
   7  *
   8  * This is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License version 2.1, as published by the Free Software
  11  * Foundation. See file COPYING.
  12  *
  13  */
  14 #include "common/ceph_json.h"
  15 #include "common/strtol.h"
  16 #include "rgw_rest.h"
  17 #include "rgw_op.h"
  18 #include "rgw_rest_s3.h"
  19 #include "rgw_rest_opstate.h"
  20 #include "rgw_client_io.h"
  21 #include "common/errno.h"
  22 #include "include/assert.h"
  23
  24 #define dout_context g_ceph_context
  25 #define OPSTATE_LIST_MAX_ENTRIES 1000
  26 #define dout_subsys ceph_subsys_rgw
  27
  28 void RGWOp_Opstate_List::execute() {
  29   string client_id = s->info.args.get("client-id"),
  30          op_id = s->info.args.get("op-id"),
  31          object = s->info.args.get("object"),
  32          max_entries_str = s->info.args.get("max-entries");
  33   unsigned max_entries = OPSTATE_LIST_MAX_ENTRIES;
  34
  35   if (!max_entries_str.empty()) {
  36     string err;
  37     max_entries = (unsigned)strict_strtol(max_entries_str.c_str(), 10, &err);
  38     if (!err.empty()) {
  39       dout(5) << "Error parsing max-entries " << max_entries_str << dendl;
  40       http_ret = -EINVAL;
  41       return;
  42     }
  43   }
  44
  45   RGWOpState oc = RGWOpState(store);
  46   void *handle;
  47   bool done;
  48   list<cls_statelog_entry> entries;
  49
  50   oc.init_list_entries(client_id, op_id, object, &handle);
  51
  52   http_ret = 0;
  53   send_response();
  54   do {
  55     int ret = oc.list_entries(handle, max_entries, entries, &done);
  56
  57     if (ret < 0) {
  58       dout(5) << "oc.list_entries failed with error " << ret << dendl;
  59       http_ret = ret;
  60       oc.finish_list_entries(handle);
  61       return;
  62     }
  63
  64     if (!max_entries_str.empty())
  65       max_entries -= entries.size();
  66
  67     send_response(entries);
  68   } while (!done && max_entries > 0);
  69
  70   oc.finish_list_entries(handle);
  71   send_response_end();
  72 }
  73
  74 void RGWOp_Opstate_List::send_response() {
  75   if (sent_header)
  76     return;
  77
  78   set_req_state_err(s, http_ret);
  79   dump_errno(s);
  80   end_header(s);
  81
  82   sent_header = true;
  83
  84   if (http_ret < 0)
  85     return;
  86
  87   s->formatter->open_array_section("entries");
  88 }
  89
  90 void RGWOp_Opstate_List::send_response(list<cls_statelog_entry> entries) {
  91   RGWOpState oc(store);
  92   for (list<cls_statelog_entry>::iterator it = entries.begin();
  93        it != entries.end(); ++it) {
  94     oc.dump_entry(*it, s->formatter);
  95     flusher.flush();
  96   }
  97 }
  98
  99 void RGWOp_Opstate_List::send_response_end() {
 100   s->formatter->close_section();
 101   flusher.flush();
 102 }
 103
 104 void RGWOp_Opstate_Set::execute() {
 105   string client_id = s->info.args.get("client-id"),
 106          op_id = s->info.args.get("op-id"),
 107          object = s->info.args.get("object"),
 108          state_str = s->info.args.get("state");
 109
 110   if (client_id.empty() ||
 111       op_id.empty() ||
 112       object.empty() ||
 113       state_str.empty()) {
 114     dout(5) << "Error - invalid parameter list" << dendl;
 115     http_ret = -EINVAL;
 116     return;
 117   }
 118
 119   RGWOpState oc(store);
 120   RGWOpState::OpState state;
 121
 122   http_ret = oc.state_from_str(state_str, &state);
 123   if (http_ret < 0) {
 124     dout(5) << "Error - invalid state" << dendl;
 125     return;
 126   }
 127
 128   http_ret = oc.set_state(client_id, op_id, object, state);
 129   if (http_ret < 0) {
 130     dout(5) << "Error - Unable to set state" << dendl;
 131     return;
 132   }
 133 }
 134
 135 void RGWOp_Opstate_Renew::execute() {
 136   string client_id = s->info.args.get("client-id"),
 137          op_id = s->info.args.get("op-id"),
 138          object = s->info.args.get("object"),
 139          state_str = s->info.args.get("state");
 140
 141   if (client_id.empty() ||
 142       op_id.empty() ||
 143       object.empty() ||
 144       state_str.empty()) {
 145     dout(5) << "Error - invalid parameter list" << dendl;
 146     http_ret = -EINVAL;
 147     return;
 148   }
 149   RGWOpState oc(store);
 150   RGWOpState::OpState state;
 151
 152   http_ret = oc.state_from_str(state_str, &state);
 153   if (http_ret < 0) {
 154     dout(5) << "Error - invalid state" << dendl;
 155     return;
 156   }
 157
 158   http_ret = oc.renew_state(client_id, op_id, object, state);
 159   if (http_ret < 0) {
 160     dout(5) << "Error - Unable to renew state" << dendl;
 161     return;
 162   }
 163 }
 164
 165 void RGWOp_Opstate_Delete::execute() {
 166   string client_id = s->info.args.get("client-id"),
 167          op_id = s->info.args.get("op-id"),
 168          object = s->info.args.get("object");
 169
 170   if (client_id.empty() ||
 171       op_id.empty() ||
 172       object.empty()) {
 173     dout(5) << "Error - invalid parameter list" << dendl;
 174     http_ret = -EINVAL;
 175     return;
 176   }
 177
 178   RGWOpState oc(store);
 179
 180   http_ret = oc.remove_entry(client_id, op_id, object);
 181   if (http_ret < 0) {
 182     dout(5) << "Error - Unable to remove entry" << dendl;
 183   }
 184 }
 185
 186 RGWOp *RGWHandler_Opstate::op_post() {
 187   if (s->info.args.exists("renew")) {
 188     return new RGWOp_Opstate_Renew;
 189   }
 190   return new RGWOp_Opstate_Set;
 191 }