1 /*
2 BAREOS® - Backup Archiving REcovery Open Sourced
3
4 Copyright (C) 2000-2006 Free Software Foundation Europe e.V.
5 Copyright (C) 2011-2016 Planets Communications B.V.
6 Copyright (C) 2013-2019 Bareos GmbH & Co. KG
7
8 This program is Free Software; you can redistribute it and/or
9 modify it under the terms of version three of the GNU Affero General Public
10 License as published by the Free Software Foundation and included
11 in the file LICENSE.
12
13 This program is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Affero General Public License for more details.
17
18 You should have received a copy of the GNU Affero General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA.
22 */
23 /*
24 * Kern Sibbald, December 2000
25 */
26 /**
27 * @file
28 * BAREOS Catalog Database Delete record interface routines
29 */
30
31 #include "include/bareos.h"
32
33 #if HAVE_SQLITE3 || HAVE_MYSQL || HAVE_POSTGRESQL || HAVE_INGRES || HAVE_DBI
34
35 # include "cats.h"
36 # include "lib/edit.h"
37
38 /* -----------------------------------------------------------------------
39 *
40 * Generic Routines (or almost generic)
41 *
42 * -----------------------------------------------------------------------
43 */
44
45 /**
46 * Delete Pool record, must also delete all associated
47 * Media records.
48 *
49 * Returns: false on error
50 * true on success
51 * PoolId = number of Pools deleted (should be 1)
52 * NumVols = number of Media records deleted
53 */
DeletePoolRecord(JobControlRecord * jcr,PoolDbRecord * pr)54 bool BareosDb::DeletePoolRecord(JobControlRecord* jcr, PoolDbRecord* pr)
55 {
56 bool retval = false;
57 SQL_ROW row;
58 int num_rows;
59 char esc[MAX_ESCAPE_NAME_LENGTH];
60
61 DbLock(this);
62 EscapeString(jcr, esc, pr->Name, strlen(pr->Name));
63 Mmsg(cmd, "SELECT PoolId FROM Pool WHERE Name='%s'", esc);
64 Dmsg1(10, "selectpool: %s\n", cmd);
65
66 pr->PoolId = pr->NumVols = 0;
67
68 if (QUERY_DB(jcr, cmd)) {
69 num_rows = SqlNumRows();
70 if (num_rows == 0) {
71 Mmsg(errmsg, _("No pool record %s exists\n"), pr->Name);
72 SqlFreeResult();
73 goto bail_out;
74 } else if (num_rows != 1) {
75 Mmsg(errmsg, _("Expecting one pool record, got %d\n"), num_rows);
76 SqlFreeResult();
77 goto bail_out;
78 }
79 if ((row = SqlFetchRow()) == NULL) {
80 Mmsg1(errmsg, _("Error fetching row %s\n"), sql_strerror());
81 goto bail_out;
82 }
83 pr->PoolId = str_to_int64(row[0]);
84 SqlFreeResult();
85 }
86
87 /* Delete Media owned by this pool */
88 Mmsg(cmd, "DELETE FROM Media WHERE Media.PoolId = %d", pr->PoolId);
89
90 pr->NumVols = DELETE_DB(jcr, cmd);
91 Dmsg1(200, "Deleted %d Media records\n", pr->NumVols);
92
93 /* Delete Pool */
94 Mmsg(cmd, "DELETE FROM Pool WHERE Pool.PoolId = %d", pr->PoolId);
95 pr->PoolId = DELETE_DB(jcr, cmd);
96 Dmsg1(200, "Deleted %d Pool records\n", pr->PoolId);
97
98 retval = true;
99
100 bail_out:
101 DbUnlock(this);
102 return retval;
103 }
104
105 # define MAX_DEL_LIST_LEN 1000000
106
107 struct s_del_ctx {
108 JobId_t* JobId;
109 int num_ids; /* ids stored */
110 int max_ids; /* size of array */
111 int num_del; /* number deleted */
112 int tot_ids; /* total to process */
113 };
114
115 /**
116 * Called here to make in memory list of JobIds to be
117 * deleted. The in memory list will then be transversed
118 * to issue the SQL DELETE commands. Note, the list
119 * is allowed to get to MAX_DEL_LIST_LEN to limit the
120 * maximum malloc'ed memory.
121 */
DeleteHandler(void * ctx,int num_fields,char ** row)122 static int DeleteHandler(void* ctx, int num_fields, char** row)
123 {
124 struct s_del_ctx* del = (struct s_del_ctx*)ctx;
125
126 if (del->num_ids == MAX_DEL_LIST_LEN) { return 1; }
127 if (del->num_ids == del->max_ids) {
128 del->max_ids = (del->max_ids * 3) / 2;
129 del->JobId = (JobId_t*)realloc(del->JobId, sizeof(JobId_t) * del->max_ids);
130 }
131 del->JobId[del->num_ids++] = (JobId_t)str_to_int64(row[0]);
132 return 0;
133 }
134
135
136 /**
137 * This routine will purge (delete) all records
138 * associated with a particular Volume. It will
139 * not delete the media record itself.
140 * TODO: This function is broken and it doesn't purge
141 * File, BaseFiles, Log, ...
142 * We call it from relabel and delete volume=, both ensure
143 * that the volume is properly purged.
144 */
DoMediaPurge(BareosDb * mdb,MediaDbRecord * mr)145 static int DoMediaPurge(BareosDb* mdb, MediaDbRecord* mr)
146 {
147 int i;
148 char ed1[50];
149 struct s_del_ctx del;
150 PoolMem query(PM_MESSAGE);
151
152 del.num_ids = 0;
153 del.tot_ids = 0;
154 del.num_del = 0;
155 del.max_ids = 0;
156
157 Mmsg(query, "SELECT JobId from JobMedia WHERE MediaId=%d", mr->MediaId);
158
159 del.max_ids = mr->VolJobs;
160 if (del.max_ids < 100) {
161 del.max_ids = 100;
162 } else if (del.max_ids > MAX_DEL_LIST_LEN) {
163 del.max_ids = MAX_DEL_LIST_LEN;
164 }
165 del.JobId = (JobId_t*)malloc(sizeof(JobId_t) * del.max_ids);
166
167 mdb->SqlQuery(query.c_str(), DeleteHandler, (void*)&del);
168
169 for (i = 0; i < del.num_ids; i++) {
170 Dmsg1(400, "Delete JobId=%d\n", del.JobId[i]);
171 Mmsg(query, "DELETE FROM Job WHERE JobId=%s",
172 edit_int64(del.JobId[i], ed1));
173 mdb->SqlQuery(query.c_str());
174
175 Mmsg(query, "DELETE FROM File WHERE JobId=%s",
176 edit_int64(del.JobId[i], ed1));
177 mdb->SqlQuery(query.c_str());
178
179 Mmsg(query, "DELETE FROM JobMedia WHERE JobId=%s",
180 edit_int64(del.JobId[i], ed1));
181 mdb->SqlQuery(query.c_str());
182 }
183
184 free(del.JobId);
185
186 return 1;
187 }
188
189 /**
190 * Delete Media record and all records that are associated with it.
191 * Returns: false on error
192 * true on success
193 */
DeleteMediaRecord(JobControlRecord * jcr,MediaDbRecord * mr)194 bool BareosDb::DeleteMediaRecord(JobControlRecord* jcr, MediaDbRecord* mr)
195 {
196 bool retval = false;
197
198 DbLock(this);
199 if (mr->MediaId == 0 && !GetMediaRecord(jcr, mr)) { goto bail_out; }
200 /* Do purge if not already purged */
201 if (!bstrcmp(mr->VolStatus, "Purged")) {
202 /* Delete associated records */
203 DoMediaPurge(this, mr);
204 }
205
206 Mmsg(cmd, "DELETE FROM Media WHERE MediaId=%d", mr->MediaId);
207 SqlQuery(cmd);
208 retval = true;
209
210 bail_out:
211 DbUnlock(this);
212 return retval;
213 }
214
215 /**
216 * Purge all records associated with a
217 * media record. This does not delete the
218 * media record itself. But the media status
219 * is changed to "Purged".
220 */
PurgeMediaRecord(JobControlRecord * jcr,MediaDbRecord * mr)221 bool BareosDb::PurgeMediaRecord(JobControlRecord* jcr, MediaDbRecord* mr)
222 {
223 bool retval = false;
224
225 DbLock(this);
226 if (mr->MediaId == 0 && !GetMediaRecord(jcr, mr)) { goto bail_out; }
227
228 /*
229 * Delete associated records
230 */
231 DoMediaPurge(this, mr); /* Note, always purge */
232
233 /*
234 * Mark Volume as purged
235 */
236 strcpy(mr->VolStatus, "Purged");
237 if (!UpdateMediaRecord(jcr, mr)) { goto bail_out; }
238
239 retval = true;
240
241 bail_out:
242 DbUnlock(this);
243 return retval;
244 }
245 #endif /* HAVE_SQLITE3 || HAVE_MYSQL || HAVE_POSTGRESQL || HAVE_INGRES */
246