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Commit15c30b6

Browse files
committed
Be more wary about mixed-case database names and user names. Get
the CREATE DATABASE command right in pg_dump -C case.
1 parent906254a commit15c30b6

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6 files changed

+131
-94
lines changed

6 files changed

+131
-94
lines changed

‎src/bin/pg_dump/common.c

Lines changed: 1 addition & 63 deletions
Original file line numberDiff line numberDiff line change
@@ -8,7 +8,7 @@
88
*
99
*
1010
* IDENTIFICATION
11-
* $Header: /cvsroot/pgsql/src/bin/pg_dump/common.c,v 1.61 2002/01/1123:21:55 tgl Exp $
11+
* $Header: /cvsroot/pgsql/src/bin/pg_dump/common.c,v 1.62 2002/02/1100:18:20 tgl Exp $
1212
*
1313
* Modifications - 6/12/96 - dave@bensoft.com - version 1.13.dhb.2
1414
*
@@ -590,65 +590,3 @@ findFuncByName(FuncInfo *finfo, int numFuncs, const char *name)
590590
}
591591
return-1;
592592
}
593-
594-
/*
595-
* fmtId
596-
*
597-
*checks input string for non-lowercase characters
598-
*returns pointer to input string or string surrounded by double quotes
599-
*
600-
*Note that the returned string should be used immediately since it
601-
*uses a static buffer to hold the string. Non-reentrant but faster?
602-
*/
603-
constchar*
604-
fmtId(constchar*rawid,boolforce_quotes)
605-
{
606-
staticPQExpBufferid_return=NULL;
607-
constchar*cp;
608-
609-
if (!force_quotes)
610-
{
611-
/* do a quick check on the first character... */
612-
if (!islower((unsignedchar)*rawid))
613-
force_quotes= true;
614-
/* otherwise check the entire string */
615-
else
616-
for (cp=rawid;*cp;cp++)
617-
{
618-
if (!(islower((unsignedchar)*cp)||
619-
isdigit((unsignedchar)*cp)||
620-
(*cp=='_')))
621-
{
622-
force_quotes= true;
623-
break;
624-
}
625-
}
626-
}
627-
628-
if (!force_quotes)
629-
returnrawid;/* no quoting needed */
630-
631-
if (id_return)
632-
resetPQExpBuffer(id_return);
633-
else
634-
id_return=createPQExpBuffer();
635-
636-
appendPQExpBufferChar(id_return,'\"');
637-
for (cp=rawid;*cp;cp++)
638-
{
639-
/*
640-
* Did we find a double-quote in the string? Then make this a
641-
* double double-quote per SQL99. Before, we put in a
642-
* backslash/double-quote pair. - thomas 2000-08-05
643-
*/
644-
if (*cp=='\"')
645-
{
646-
appendPQExpBufferChar(id_return,'\"');
647-
appendPQExpBufferChar(id_return,'\"');
648-
}
649-
appendPQExpBufferChar(id_return,*cp);
650-
}
651-
appendPQExpBufferChar(id_return,'\"');
652-
653-
returnid_return->data;
654-
}/* fmtId() */

‎src/bin/pg_dump/pg_backup.h

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,7 @@
1515
*
1616
*
1717
* IDENTIFICATION
18-
*$Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup.h,v 1.17 2001/10/28 06:25:58 momjian Exp $
18+
*$Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup.h,v 1.18 2002/02/11 00:18:20 tgl Exp $
1919
*
2020
* Modifications - 28-Jun-2000 - pjw@rhyme.com.au
2121
*
@@ -136,10 +136,11 @@ extern void
136136
exit_horribly(Archive*AH,constchar*modulename,constchar*fmt,...)
137137
__attribute__((format(printf,3,4)));
138138

139-
externchar*
140-
simple_prompt(constchar*prompt,intmaxlen,boolecho);
139+
externchar*simple_prompt(constchar*prompt,intmaxlen,boolecho);
141140

142-
/* Lets the archibe know we have a DB connection to shutdown if it dies */
141+
externconstchar*fmtId(constchar*identifier,boolforce_quotes);
142+
143+
/* Lets the archive know we have a DB connection to shutdown if it dies */
143144

144145
PGconn*ConnectDatabase(Archive*AH,
145146
constchar*dbname,

‎src/bin/pg_dump/pg_backup_archiver.c

Lines changed: 85 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -15,7 +15,7 @@
1515
*
1616
*
1717
* IDENTIFICATION
18-
*$Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.41 2002/02/06 17:27:50 tgl Exp $
18+
*$Header: /cvsroot/pgsql/src/bin/pg_dump/pg_backup_archiver.c,v 1.42 2002/02/11 00:18:20 tgl Exp $
1919
*
2020
* Modifications - 28-Jun-2000 - pjw@rhyme.com.au
2121
*
@@ -74,6 +74,7 @@
7474
#include"pg_backup_archiver.h"
7575
#include"pg_backup_db.h"
7676

77+
#include<ctype.h>
7778
#include<errno.h>
7879
#include<unistd.h>/* for dup */
7980

@@ -1953,7 +1954,7 @@ _tocEntryRequired(TocEntry *te, RestoreOptions *ropt)
19531954
* user, this won't do anything.
19541955
*
19551956
* If we're currently restoring right into a database, this will
1956-
*actuall establish a connection.Otherwise it puts a \connect into
1957+
*actually establish a connection.Otherwise it puts a \connect into
19571958
* the script output.
19581959
*/
19591960
staticvoid
@@ -1974,7 +1975,8 @@ _reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user)
19741975
PQExpBufferqry=createPQExpBuffer();
19751976
PGresult*res;
19761977

1977-
appendPQExpBuffer(qry,"SET SESSION AUTHORIZATION '%s';",user);
1978+
appendPQExpBuffer(qry,"SET SESSION AUTHORIZATION %s;",
1979+
fmtId(user, false));
19781980
res=PQexec(AH->connection,qry->data);
19791981

19801982
if (!res||PQresultStatus(res)!=PGRES_COMMAND_OK)
@@ -1985,19 +1987,29 @@ _reconnectAsUser(ArchiveHandle *AH, const char *dbname, const char *user)
19851987
destroyPQExpBuffer(qry);
19861988
}
19871989
else
1988-
ahprintf(AH,"SET SESSION AUTHORIZATION '%s';\n\n",user);
1990+
ahprintf(AH,"SET SESSION AUTHORIZATION %s;\n\n",
1991+
fmtId(user, false));
19891992
}
1990-
/* When -R was given, don't do anything. */
19911993
elseif (AH->ropt&&AH->ropt->noReconnect)
1994+
{
1995+
/* When -R was given, don't do anything. */
19921996
return;
1993-
1997+
}
19941998
elseif (RestoringToDB(AH))
19951999
ReconnectToServer(AH,dbname,user);
19962000
else
1997-
/* FIXME: does not handle mixed case user names */
1998-
ahprintf(AH,"\\connect %s %s\n\n",
1999-
dbname ?dbname :"-",
2000-
user ?user :"-");
2001+
{
2002+
PQExpBufferqry=createPQExpBuffer();
2003+
2004+
appendPQExpBuffer(qry,"\\connect %s",
2005+
dbname ?fmtId(dbname, false) :"-");
2006+
appendPQExpBuffer(qry," %s\n\n",
2007+
fmtId(user, false));
2008+
2009+
ahprintf(AH,qry->data);
2010+
2011+
destroyPQExpBuffer(qry);
2012+
}
20012013

20022014
/*
20032015
* NOTE: currUser keeps track of what the imaginary session user in
@@ -2025,6 +2037,69 @@ _reconnectAsOwner(ArchiveHandle *AH, const char *dbname, TocEntry *te)
20252037
}
20262038

20272039

2040+
/*
2041+
* fmtId
2042+
*
2043+
*checks input string for non-lowercase characters
2044+
*returns pointer to input string or string surrounded by double quotes
2045+
*
2046+
*Note that the returned string should be used immediately since it
2047+
*uses a static buffer to hold the string. Non-reentrant but faster?
2048+
*/
2049+
constchar*
2050+
fmtId(constchar*rawid,boolforce_quotes)
2051+
{
2052+
staticPQExpBufferid_return=NULL;
2053+
constchar*cp;
2054+
2055+
if (!force_quotes)
2056+
{
2057+
/* do a quick check on the first character... */
2058+
if (!islower((unsignedchar)*rawid))
2059+
force_quotes= true;
2060+
/* otherwise check the entire string */
2061+
else
2062+
for (cp=rawid;*cp;cp++)
2063+
{
2064+
if (!(islower((unsignedchar)*cp)||
2065+
isdigit((unsignedchar)*cp)||
2066+
(*cp=='_')))
2067+
{
2068+
force_quotes= true;
2069+
break;
2070+
}
2071+
}
2072+
}
2073+
2074+
if (!force_quotes)
2075+
returnrawid;/* no quoting needed */
2076+
2077+
if (id_return)
2078+
resetPQExpBuffer(id_return);
2079+
else
2080+
id_return=createPQExpBuffer();
2081+
2082+
appendPQExpBufferChar(id_return,'\"');
2083+
for (cp=rawid;*cp;cp++)
2084+
{
2085+
/*
2086+
* Did we find a double-quote in the string? Then make this a
2087+
* double double-quote per SQL99. Before, we put in a
2088+
* backslash/double-quote pair. - thomas 2000-08-05
2089+
*/
2090+
if (*cp=='\"')
2091+
{
2092+
appendPQExpBufferChar(id_return,'\"');
2093+
appendPQExpBufferChar(id_return,'\"');
2094+
}
2095+
appendPQExpBufferChar(id_return,*cp);
2096+
}
2097+
appendPQExpBufferChar(id_return,'\"');
2098+
2099+
returnid_return->data;
2100+
}
2101+
2102+
20282103
staticint
20292104
_printTocEntry(ArchiveHandle*AH,TocEntry*te,RestoreOptions*ropt,boolisData)
20302105
{

‎src/bin/pg_dump/pg_dump.c

Lines changed: 36 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -22,7 +22,7 @@
2222
*
2323
*
2424
* IDENTIFICATION
25-
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.240 2002/02/06 17:27:50 tgl Exp $
25+
* $Header: /cvsroot/pgsql/src/bin/pg_dump/pg_dump.c,v 1.241 2002/02/11 00:18:20 tgl Exp $
2626
*
2727
*-------------------------------------------------------------------------
2828
*/
@@ -1141,15 +1141,24 @@ dumpDatabase(Archive *AH)
11411141
PQExpBuffercreaQry=createPQExpBuffer();
11421142
PGresult*res;
11431143
intntups;
1144-
inti_dba;
1144+
inti_dba,
1145+
i_encoding,
1146+
i_datpath;
1147+
constchar*datname,
1148+
*dba,
1149+
*encoding,
1150+
*datpath;
1151+
1152+
datname=PQdb(g_conn);
11451153

11461154
if (g_verbose)
11471155
write_msg(NULL,"saving database definition\n");
11481156

1149-
/* Get the dba */
1150-
appendPQExpBuffer(dbQry,"select (select usename from pg_user where datdba = usesysid) as dba from pg_database"
1157+
/* Get the database owner and parameters from pg_database */
1158+
appendPQExpBuffer(dbQry,"select (select usename from pg_user where usesysid = datdba) as dba,"
1159+
" encoding, datpath from pg_database"
11511160
" where datname = ");
1152-
formatStringLiteral(dbQry,PQdb(g_conn),CONV_ALL);
1161+
formatStringLiteral(dbQry,datname,CONV_ALL);
11531162

11541163
res=PQexec(g_conn,dbQry->data);
11551164
if (!res||
@@ -1165,24 +1174,39 @@ dumpDatabase(Archive *AH)
11651174

11661175
if (ntups <=0)
11671176
{
1168-
write_msg(NULL,"missing pg_database entry for database \"%s\"\n",PQdb(g_conn));
1177+
write_msg(NULL,"missing pg_database entry for database \"%s\"\n",
1178+
datname);
11691179
exit_nicely();
11701180
}
11711181

11721182
if (ntups!=1)
11731183
{
11741184
write_msg(NULL,"query returned more than one (%d) pg_database entry for database \"%s\"\n",
1175-
ntups,PQdb(g_conn));
1185+
ntups,datname);
11761186
exit_nicely();
11771187
}
11781188

1179-
appendPQExpBuffer(creaQry,"Create Database \"%s\";\n",PQdb(g_conn));
1180-
appendPQExpBuffer(delQry,"Drop Database \"%s\";\n",PQdb(g_conn));
11811189
i_dba=PQfnumber(res,"dba");
1182-
1183-
ArchiveEntry(AH,"0"/* OID */ ,PQdb(g_conn)/* Name */ ,"DATABASE",NULL,
1190+
i_encoding=PQfnumber(res,"encoding");
1191+
i_datpath=PQfnumber(res,"datpath");
1192+
dba=PQgetvalue(res,0,i_dba);
1193+
encoding=PQgetvalue(res,0,i_encoding);
1194+
datpath=PQgetvalue(res,0,i_datpath);
1195+
1196+
appendPQExpBuffer(creaQry,"CREATE DATABASE %s WITH TEMPLATE = template0",
1197+
fmtId(datname,force_quotes));
1198+
if (strlen(encoding)>0)
1199+
appendPQExpBuffer(creaQry," ENCODING = %s",encoding);
1200+
if (strlen(datpath)>0)
1201+
appendPQExpBuffer(creaQry," LOCATION = '%s'",datpath);
1202+
appendPQExpBuffer(creaQry,";\n");
1203+
1204+
appendPQExpBuffer(delQry,"DROP DATABASE %s;\n",
1205+
fmtId(datname,force_quotes));
1206+
1207+
ArchiveEntry(AH,"0"/* OID */ ,datname/* Name */ ,"DATABASE",NULL,
11841208
creaQry->data/* Create */ ,delQry->data/* Del */ ,
1185-
""/* Copy */ ,PQgetvalue(res,0,i_dba)/* Owner */ ,
1209+
""/* Copy */ ,dba/* Owner */ ,
11861210
NULL/* Dumper */ ,NULL/* Dumper Arg */ );
11871211

11881212
PQclear(res);

‎src/bin/pg_dump/pg_dump.h

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
77
* Portions Copyright (c) 1994, Regents of the University of California
88
*
9-
* $Id: pg_dump.h,v 1.77 2002/01/1123:21:55 tgl Exp $
9+
* $Id: pg_dump.h,v 1.78 2002/02/1100:18:20 tgl Exp $
1010
*
1111
* Modifications - 6/12/96 - dave@bensoft.com - version 1.13.dhb.2
1212
*
@@ -280,7 +280,6 @@ extern void dumpTables(Archive *fout, TableInfo *tbinfo, int numTables,
280280
constboolschemaOnly,constbooldataOnly);
281281
externvoiddumpIndexes(Archive*fout,IndInfo*indinfo,intnumIndexes,
282282
TableInfo*tbinfo,intnumTables,constchar*tablename);
283-
externconstchar*fmtId(constchar*identifier,boolforce_quotes);
284283
externvoidexit_nicely(void);
285284

286285
#endif/* PG_DUMP_H */

‎src/bin/pg_dump/pg_dumpall.sh

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
# and "pg_group" tables, which belong to the whole installation rather
77
# than any one individual database.
88
#
9-
# $Header: /cvsroot/pgsql/src/bin/pg_dump/Attic/pg_dumpall.sh,v 1.14 2002/01/09 04:56:44 momjian Exp $
9+
# $Header: /cvsroot/pgsql/src/bin/pg_dump/Attic/pg_dumpall.sh,v 1.15 2002/02/11 00:18:20 tgl Exp $
1010

1111
CMDNAME=`basename$0`
1212

@@ -217,7 +217,7 @@ while read DATABASE DBOWNER ENCODING ISTEMPLATE DBPATH; do
217217
echo"--"
218218
echo"-- Database$DATABASE"
219219
echo"--"
220-
echo"${BS}connect template1$DBOWNER"
220+
echo"${BS}connect template1\"$DBOWNER\""
221221

222222
if ["$cleanschema"= yes-a"$DATABASE"!= template1 ];then
223223
echo"DROP DATABASE\"$DATABASE\";"
@@ -234,7 +234,7 @@ while read DATABASE DBOWNER ENCODING ISTEMPLATE DBPATH; do
234234
echo"$createdbcmd;"
235235
fi
236236

237-
echo"${BS}connect$DATABASE$DBOWNER"
237+
echo"${BS}connect\"$DATABASE\"\"$DBOWNER\""
238238
echo"dumping database\"$DATABASE\"..."1>&2
239239
$PGDUMP"$DATABASE"<&4
240240
if ["$?"-ne 0 ];then

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