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Add the SQLITE_DBCONFIG_ENABLE_VIEW option, together with a "db config"

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command in the TCL interface that can access that option as well as all the
other sqlite3_db_config() boolean options.

FossilOrigin-Name: 61b4bccd2984f4c2cf50f58ef08677588e57aa7e079af07473b2e188d9ce4f52
This commit is contained in:
drh
2019-08-15 21:27:20 +00:00
parent 725dd72400
commit 11d88e68ab
10 changed files with 146 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/main.c
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@@ -836,6 +836,7 @@ int sqlite3_db_config(sqlite3 *db, int op, ...){
} aFlagOp[] = {
{ SQLITE_DBCONFIG_ENABLE_FKEY, SQLITE_ForeignKeys },
{ SQLITE_DBCONFIG_ENABLE_TRIGGER, SQLITE_EnableTrigger },
{ SQLITE_DBCONFIG_ENABLE_VIEW, SQLITE_EnableView },
{ SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER, SQLITE_Fts3Tokenizer },
{ SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION, SQLITE_LoadExtension },
{ SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE, SQLITE_NoCkptOnClose },
@@ -3075,6 +3076,7 @@ static int openDatabase(
db->nMaxSorterMmap = 0x7FFFFFFF;
db->flags |= SQLITE_ShortColNames
| SQLITE_EnableTrigger
| SQLITE_EnableView
| SQLITE_CacheSpill
/* The SQLITE_DQS compile-time option determines the default settings

4
src/select.c
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@@ -4906,6 +4906,10 @@ static int selectExpander(Walker *pWalker, Select *p){
u8 eCodeOrig = pWalker->eCode;
if( sqlite3ViewGetColumnNames(pParse, pTab) ) return WRC_Abort;
assert( pFrom->pSelect==0 );
if( pTab->pSelect && (db->flags & SQLITE_EnableView)==0 ){
sqlite3ErrorMsg(pParse, "access to view \"%s\" prohibited",
pTab->zName);
}
pFrom->pSelect = sqlite3SelectDup(db, pTab->pSelect, 0);
nCol = pTab->nCol;
pTab->nCol = -1;

1
src/shell.c.in
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@@ -7135,6 +7135,7 @@ static int do_meta_command(char *zLine, ShellState *p){
} aDbConfig[] = {
{ "enable_fkey", SQLITE_DBCONFIG_ENABLE_FKEY },
{ "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER },
{ "enable_view", SQLITE_DBCONFIG_ENABLE_VIEW },
{ "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
{ "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
{ "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },

14
src/sqlite.h.in
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@@ -2093,6 +2093,17 @@ struct sqlite3_mem_methods {
** following this call. The second parameter may be a NULL pointer, in
** which case the trigger setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_VIEW]]
** <dt>SQLITE_DBCONFIG_ENABLE_VIEW</dt>
** <dd> ^This option is used to enable or disable [CREATE VIEW | views].
** There should be two additional arguments.
** The first argument is an integer which is 0 to disable views,
** positive to enable views or negative to leave the setting unchanged.
** The second parameter is a pointer to an integer into which
** is written 0 or 1 to indicate whether views are disabled or enabled
** following this call. The second parameter may be a NULL pointer, in
** which case the view setting is not reported back. </dd>
**
** [[SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER]]
** <dt>SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER</dt>
** <dd> ^This option is used to enable or disable the
@@ -2265,7 +2276,8 @@ struct sqlite3_mem_methods {
#define SQLITE_DBCONFIG_LEGACY_ALTER_TABLE 1012 /* int int* */
#define SQLITE_DBCONFIG_DQS_DML 1013 /* int int* */
#define SQLITE_DBCONFIG_DQS_DDL 1014 /* int int* */
#define SQLITE_DBCONFIG_MAX 1014 /* Largest DBCONFIG */
#define SQLITE_DBCONFIG_ENABLE_VIEW 1015 /* int int* */
#define SQLITE_DBCONFIG_MAX 1015 /* Largest DBCONFIG */
/*
** CAPI3REF: Enable Or Disable Extended Result Codes

13
src/sqliteInt.h
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@@ -1537,16 +1537,17 @@ struct sqlite3 {
#define SQLITE_Defensive 0x10000000 /* Input SQL is likely hostile */
#define SQLITE_DqsDDL 0x20000000 /* dbl-quoted strings allowed in DDL*/
#define SQLITE_DqsDML 0x40000000 /* dbl-quoted strings allowed in DML*/
#define SQLITE_EnableView 0x80000000 /* Enable the use of views */
/* Flags used only if debugging */
#define HI(X) ((u64)(X)<<32)
#ifdef SQLITE_DEBUG
#define SQLITE_SqlTrace HI(0x0001) /* Debug print SQL as it executes */
#define SQLITE_VdbeListing HI(0x0002) /* Debug listings of VDBE progs */
#define SQLITE_VdbeTrace HI(0x0004) /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace HI(0x0008) /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_VdbeEQP HI(0x0010) /* Debug EXPLAIN QUERY PLAN */
#define SQLITE_ParserTrace HI(0x0020) /* PRAGMA parser_trace=ON */
#define SQLITE_SqlTrace HI(0x0100000) /* Debug print SQL as it executes */
#define SQLITE_VdbeListing HI(0x0200000) /* Debug listings of VDBE progs */
#define SQLITE_VdbeTrace HI(0x0400000) /* True to trace VDBE execution */
#define SQLITE_VdbeAddopTrace HI(0x0800000) /* Trace sqlite3VdbeAddOp() calls */
#define SQLITE_VdbeEQP HI(0x1000000) /* Debug EXPLAIN QUERY PLAN */
#define SQLITE_ParserTrace HI(0x2000000) /* PRAGMA parser_trace=ON */
#endif
/*

114
src/tclsqlite.c
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@@ -1917,33 +1917,33 @@ static int SQLITE_TCLAPI DbObjCmd(
"authorizer", "backup", "bind_fallback",
"busy", "cache", "changes",
"close", "collate", "collation_needed",
"commit_hook", "complete", "copy",
"deserialize", "enable_load_extension", "errorcode",
"eval", "exists", "function",
"incrblob", "interrupt", "last_insert_rowid",
"nullvalue", "onecolumn", "preupdate",
"profile", "progress", "rekey",
"restore", "rollback_hook", "serialize",
"status", "timeout", "total_changes",
"trace", "trace_v2", "transaction",
"unlock_notify", "update_hook", "version",
"wal_hook", 0
"commit_hook", "complete", "config",
"copy", "deserialize", "enable_load_extension",
"errorcode", "eval", "exists",
"function", "incrblob", "interrupt",
"last_insert_rowid", "nullvalue", "onecolumn",
"preupdate", "profile", "progress",
"rekey", "restore", "rollback_hook",
"serialize", "status", "timeout",
"total_changes", "trace", "trace_v2",
"transaction", "unlock_notify", "update_hook",
"version", "wal_hook", 0
};
enum DB_enum {
DB_AUTHORIZER, DB_BACKUP, DB_BIND_FALLBACK,
DB_BUSY, DB_CACHE, DB_CHANGES,
DB_CLOSE, DB_COLLATE, DB_COLLATION_NEEDED,
DB_COMMIT_HOOK, DB_COMPLETE, DB_COPY,
DB_DESERIALIZE, DB_ENABLE_LOAD_EXTENSION,DB_ERRORCODE,
DB_EVAL, DB_EXISTS, DB_FUNCTION,
DB_INCRBLOB, DB_INTERRUPT, DB_LAST_INSERT_ROWID,
DB_NULLVALUE, DB_ONECOLUMN, DB_PREUPDATE,
DB_PROFILE, DB_PROGRESS, DB_REKEY,
DB_RESTORE, DB_ROLLBACK_HOOK, DB_SERIALIZE,
DB_STATUS, DB_TIMEOUT, DB_TOTAL_CHANGES,
DB_TRACE, DB_TRACE_V2, DB_TRANSACTION,
DB_UNLOCK_NOTIFY, DB_UPDATE_HOOK, DB_VERSION,
DB_WAL_HOOK
DB_COMMIT_HOOK, DB_COMPLETE, DB_CONFIG,
DB_COPY, DB_DESERIALIZE, DB_ENABLE_LOAD_EXTENSION,
DB_ERRORCODE, DB_EVAL, DB_EXISTS,
DB_FUNCTION, DB_INCRBLOB, DB_INTERRUPT,
DB_LAST_INSERT_ROWID, DB_NULLVALUE, DB_ONECOLUMN,
DB_PREUPDATE, DB_PROFILE, DB_PROGRESS,
DB_REKEY, DB_RESTORE, DB_ROLLBACK_HOOK,
DB_SERIALIZE, DB_STATUS, DB_TIMEOUT,
DB_TOTAL_CHANGES, DB_TRACE, DB_TRACE_V2,
DB_TRANSACTION, DB_UNLOCK_NOTIFY, DB_UPDATE_HOOK,
DB_VERSION, DB_WAL_HOOK
};
/* don't leave trailing commas on DB_enum, it confuses the AIX xlc compiler */
@@ -2331,6 +2331,76 @@ static int SQLITE_TCLAPI DbObjCmd(
break;
}
/* $db config ?OPTION? ?BOOLEAN?
**
** Configure the database connection using the sqlite3_db_config()
** interface.
*/
case DB_CONFIG: {
static const struct DbConfigChoices {
const char *zName;
int op;
} aDbConfig[] = {
{ "enable_fkey", SQLITE_DBCONFIG_ENABLE_FKEY },
{ "enable_trigger", SQLITE_DBCONFIG_ENABLE_TRIGGER },
{ "enable_view", SQLITE_DBCONFIG_ENABLE_VIEW },
{ "fts3_tokenizer", SQLITE_DBCONFIG_ENABLE_FTS3_TOKENIZER },
{ "load_extension", SQLITE_DBCONFIG_ENABLE_LOAD_EXTENSION },
{ "no_ckpt_on_close", SQLITE_DBCONFIG_NO_CKPT_ON_CLOSE },
{ "enable_qpsg", SQLITE_DBCONFIG_ENABLE_QPSG },
{ "trigger_eqp", SQLITE_DBCONFIG_TRIGGER_EQP },
{ "reset_database", SQLITE_DBCONFIG_RESET_DATABASE },
{ "defensive", SQLITE_DBCONFIG_DEFENSIVE },
{ "writable_schema", SQLITE_DBCONFIG_WRITABLE_SCHEMA },
{ "legacy_alter_table", SQLITE_DBCONFIG_LEGACY_ALTER_TABLE },
{ "dqs_dml", SQLITE_DBCONFIG_DQS_DML },
{ "dqs_ddl", SQLITE_DBCONFIG_DQS_DDL },
};
Tcl_Obj *pResult;
int ii;
if( objc>4 ){
Tcl_WrongNumArgs(interp, 2, objv, "?OPTION? ?BOOLEAN?");
return TCL_ERROR;
}
if( objc==2 ){
/* With no arguments, list all configuration options and with the
** current value */
pResult = Tcl_NewListObj(0,0);
for(ii=0; ii<sizeof(aDbConfig)/sizeof(aDbConfig[0]); ii++){
int v = 0;
int rc = sqlite3_db_config(pDb->db, aDbConfig[ii].op, -1, &v);
if( rc!=SQLITE_OK ) continue;
Tcl_ListObjAppendElement(interp, pResult,
Tcl_NewStringObj(aDbConfig[ii].zName,-1));
Tcl_ListObjAppendElement(interp, pResult,
Tcl_NewIntObj(v));
}
}else{
const char *zOpt = Tcl_GetString(objv[2]);
int rc;
int onoff = -1;
int v = 0;
if( zOpt[0]=='-' ) zOpt++;
for(ii=0; ii<sizeof(aDbConfig)/sizeof(aDbConfig[0]); ii++){
if( strcmp(aDbConfig[ii].zName, zOpt)==0 ) break;
}
if( ii>=sizeof(aDbConfig)/sizeof(aDbConfig[0]) ){
Tcl_AppendResult(interp, "unknown config option: \"", zOpt,
"\"", (void*)0);
return TCL_ERROR;
}
if( objc==4 ){
if( Tcl_GetBooleanFromObj(interp, objv[3], &onoff) ){
return TCL_ERROR;
}
}
rc = sqlite3_db_config(pDb->db, aDbConfig[ii].op, onoff, &v);
pResult = Tcl_NewIntObj(v);
}
Tcl_SetObjResult(interp, pResult);
break;
}
/* $db copy conflict-algorithm table filename ?SEPARATOR? ?NULLINDICATOR?
**
** Copy data into table from filename, optionally using SEPARATOR