Server IP : 172.67.216.182 / Your IP : 162.158.170.235 Web Server : Apache System : Linux krdc-ubuntu-s-2vcpu-4gb-amd-blr1-01.localdomain 5.15.0-142-generic #152-Ubuntu SMP Mon May 19 10:54:31 UTC 2025 x86_64 User : www ( 1000) PHP Version : 7.4.33 Disable Function : passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv MySQL : OFF | cURL : ON | WGET : ON | Perl : ON | Python : OFF | Sudo : ON | Pkexec : ON Directory : /www/server/mysql/src/plugin/rewrite_example/ |
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/* Copyright (c) 2015, 2023, Oracle and/or its affiliates. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License, version 2.0, as published by the Free Software Foundation. This program is also distributed with certain software (including but not limited to OpenSSL) that is licensed under separate terms, as designated in a particular file or component or in included license documentation. The authors of MySQL hereby grant you an additional permission to link the program and your derivative works with the separately licensed software that they have included with MySQL. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0, for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <ctype.h> #include <string.h> #include <my_global.h> #include <mysql/plugin.h> #include <mysql/plugin_audit.h> #include <mysql/service_mysql_alloc.h> #include <my_thread.h> // my_thread_handle needed by mysql_memory.h #include <mysql/psi/mysql_memory.h> /* instrument the memory allocation */ #ifdef HAVE_PSI_INTERFACE static PSI_memory_key key_memory_rewrite_example; static PSI_memory_info all_rewrite_memory[]= { { &key_memory_rewrite_example, "rewrite_example", 0 } }; static int plugin_init(MYSQL_PLUGIN) { const char* category= "sql"; int count; count= array_elements(all_rewrite_memory); mysql_memory_register(category, all_rewrite_memory, count); return 0; /* success */ } #else #define plugin_init NULL #define key_memory_rewrite_example PSI_NOT_INSTRUMENTED #endif /* HAVE_PSI_INTERFACE */ static int rewrite_lower(MYSQL_THD thd, mysql_event_class_t event_class, const void *event) { if (event_class == MYSQL_AUDIT_PARSE_CLASS) { const struct mysql_event_parse *event_parse= static_cast<const struct mysql_event_parse *>(event); if (event_parse->event_subclass == MYSQL_AUDIT_PARSE_PREPARSE) { size_t query_length= event_parse->query.length; char *rewritten_query= static_cast<char *>(my_malloc(key_memory_rewrite_example, query_length + 1, MYF(0))); for (unsigned i= 0; i < query_length + 1; i++) rewritten_query[i]= tolower(event_parse->query.str[i]); event_parse->rewritten_query->str= rewritten_query; event_parse->rewritten_query->length= query_length; *((int *)event_parse->flags)|= (int)MYSQL_AUDIT_PARSE_REWRITE_PLUGIN_QUERY_REWRITTEN; } } return 0; } /* Audit plugin descriptor */ static struct st_mysql_audit rewrite_example_descriptor= { MYSQL_AUDIT_INTERFACE_VERSION, /* interface version */ NULL, /* release_thd() */ rewrite_lower, /* event_notify() */ { 0, 0, (unsigned long) MYSQL_AUDIT_PARSE_ALL, } /* class mask */ }; /* Plugin descriptor */ mysql_declare_plugin(audit_log) { MYSQL_AUDIT_PLUGIN, /* plugin type */ &rewrite_example_descriptor, /* type specific descriptor */ "rewrite_example", /* plugin name */ "Oracle", /* author */ "An example of a query rewrite" " plugin that rewrites all queries" " to lower case", /* description */ PLUGIN_LICENSE_GPL, /* license */ plugin_init, /* plugin initializer */ NULL, /* plugin deinitializer */ 0x0002, /* version */ NULL, /* status variables */ NULL, /* system variables */ NULL, /* reserverd */ 0 /* flags */ } mysql_declare_plugin_end;