<?php
/**
- * This is PostgreSQL database abstraction layer.
+ * This is Postgres database abstraction layer.
*
* As it includes more generic version for DB functions,
* than MySQL ones, some of them should be moved to parent
$this->mFailFunction = $failFunction;
$this->mCascadingDeletes = true;
$this->mCleanupTriggers = true;
+ $this->mStrictIPs = true;
$this->mFlags = $flags;
$this->open( $server, $user, $password, $dbName);
* If the failFunction is set to a non-zero integer, returns success
*/
function open( $server, $user, $password, $dbName ) {
- # Test for PostgreSQL support, to avoid suppressed fatal error
+ # Test for Postgres support, to avoid suppressed fatal error
if ( !function_exists( 'pg_connect' ) ) {
- throw new DBConnectionError( $this, "PostgreSQL functions missing, have you compiled PHP with the --with-pgsql option?\n" );
+ throw new DBConnectionError( $this, "Postgres functions missing, have you compiled PHP with the --with-pgsql option?\n (Note: if you recently installed PHP, you may need to restart your webserver and database)\n" );
}
global $wgDBname, $wgDBuser, $wgDBpass, $wgDBsuperuser, $wgDBmwschema, $wgDBts2schema;
print "OK</li>\n";
+ $safeuser = $this->quote_ident($wgDBuser);
## Are we connecting as a superuser for the first time?
if ($wgDBsuperuser) {
+ ## Are we really a superuser? Check out our rights
+ $SQL = "SELECT
+ CASE WHEN usesuper IS TRUE THEN
+ CASE WHEN usecreatedb IS TRUE THEN 3 ELSE 1 END
+ ELSE CASE WHEN usecreatedb IS TRUE THEN 2 ELSE 0 END
+ END AS rights
+ FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBsuperuser);
+ $rows = $this->numRows($res = $this->doQuery($SQL));
+ if (!$rows) {
+ print "<li>ERROR: Could not read permissions for user \"$wgDBsuperuser\"</li>\n";
+ dieout('</ul>');
+ }
+ $perms = pg_fetch_result($res, 0, 0);
+
$SQL = "SELECT 1 FROM pg_catalog.pg_user WHERE usename = " . $this->addQuotes($wgDBuser);
$rows = $this->numRows($this->doQuery($SQL));
if ($rows) {
print "<li>User \"$wgDBuser\" already exists, skipping account creation.</li>";
}
else {
- ## Can we create users?
- $SQL = "SELECT 1 FROM pg_catalog.pg_user WHERE usesuper IS TRUE AND ".
- "usename = " . $this->addQuotes($wgDBsuperuser);
- $rows = $this->numRows($this->doQuery($SQL));
- if (!$rows) {
+ if ($perms != 1 and $perms != 3) {
print "<li>ERROR: the user \"$wgDBsuperuser\" cannot create other users. ";
print 'Please use a different Postgres user.</li>';
dieout('</ul>');
}
print "<li>Creating user <b>$wgDBuser</b>...";
$safepass = $this->addQuotes($wgDBpass);
- $SQL = "CREATE USER \"$wgDBuser\" NOCREATEDB PASSWORD $safepass";
+ $SQL = "CREATE USER $safeuser NOCREATEDB PASSWORD $safepass";
$this->doQuery($SQL);
print "OK</li>\n";
}
## User now exists, check out the database
- $safename = $this->addQuotes($wgDBname);
- $SQL = "SELECT 1 FROM pg_catalog.pg_database WHERE datname = $safename";
- $rows = $this->numRows($this->doQuery($SQL));
- if ($rows) {
- print "<li>Database \"$wgDBname\" already exists, skipping database creation.</li>";
- }
- else {
- print "<li>Creating database <b>$wgDBname</b>...";
- $SQL = "CREATE DATABASE \"$wgDBname\" OWNER \"$wgDBuser\" ";
- $this->doQuery($SQL);
+ if ($dbName != $wgDBname) {
+ $SQL = "SELECT 1 FROM pg_catalog.pg_database WHERE datname = " . $this->addQuotes($wgDBname);
+ $rows = $this->numRows($this->doQuery($SQL));
+ if ($rows) {
+ print "<li>Database \"$wgDBname\" already exists, skipping database creation.</li>";
+ }
+ else {
+ if ($perms < 2) {
+ print "<li>ERROR: the user \"$wgDBsuperuser\" cannot create databases. ";
+ print 'Please use a different Postgres user.</li>';
+ dieout('</ul>');
+ }
+ print "<li>Creating database <b>$wgDBname</b>...";
+ $safename = $this->quote_ident($wgDBname);
+ $SQL = "CREATE DATABASE $safename OWNER $safeuser ";
+ $this->doQuery($SQL);
+ print "OK</li>\n";
+ ## Hopefully tsearch2 and plpgsql are in template1...
+ }
+
+ ## Reconnect to check out tsearch2 rights for this user
+ print "<li>Connecting to \"$wgDBname\" as superuser \"$wgDBsuperuser\" to check rights...";
+ @$this->mConn = pg_connect("$hstring dbname=$wgDBname user=$user password=$password");
+ if ( $this->mConn == false ) {
+ print "<b>FAILED TO CONNECT!</b></li>";
+ dieout("</ul>");
+ }
print "OK</li>\n";
- ## Hopefully tsearch2 and plpgsql are in template1...
}
- ## Reconnect to check out tsearch2 rights for this user
- print "<li>Connecting to \"$wgDBname\" as superuser \"$wgDBsuperuser\" to check rights...";
- @$this->mConn = pg_connect("$hstring dbname=$wgDBname user=$user password=$password");
- if ( $this->mConn == false ) {
- print "<b>FAILED TO CONNECT!</b></li>";
- dieout("</uL>");
- }
- print "OK!";
+ ## Tsearch2 checks
print "<li>Checking that tsearch2 is installed in the database \"$wgDBname\"...";
if (! $this->tableExists("pg_ts_cfg", $wgDBts2schema)) {
print "<b>FAILED</b>. tsearch2 must be installed in the database \"$wgDBname\".";
dieout("</ul>");
}
print "OK</li>\n";
- print "Ensuring that user \"$wgDBuser\" has select rights on the tsearch2 tables...";
+ print "<li>Ensuring that user \"$wgDBuser\" has select rights on the tsearch2 tables...";
foreach (array('cfg','cfgmap','dict','parser') as $table) {
- $SQL = "GRANT SELECT ON pg_ts_$table TO \"$wgDBuser\"";
+ $SQL = "GRANT SELECT ON pg_ts_$table TO $safeuser";
$this->doQuery($SQL);
}
+ print "OK</li>\n";
+
+
+ ## Setup the schema for this user if needed
+ $result = $this->schemaExists($wgDBmwschema);
+ $safeschema = $this->quote_ident($wgDBmwschema);
+ if (!$result) {
+ print "<li>Creating schema <b>$wgDBmwschema</b> ...";
+ $result = $this->doQuery("CREATE SCHEMA $safeschema AUTHORIZATION $safeuser");
+ if (!$result) {
+ print "<b>FAILED</b>.</li>\n";
+ dieout("</ul>");
+ }
+ print "OK</li>\n";
+ }
+ else {
+ print "<li>Schema already exists, explicitly granting rights...\n";
+ $safeschema2 = $this->addQuotes($wgDBmwschema);
+ $SQL = "SELECT 'GRANT ALL ON '||pg_catalog.quote_ident(relname)||' TO $safeuser;'\n".
+ "FROM pg_catalog.pg_class p, pg_catalog.pg_namespace n\n".
+ "WHERE relnamespace = n.oid AND n.nspname = $safeschema2\n".
+ "AND p.relkind IN ('r','S','v')\n";
+ $SQL .= "UNION\n";
+ $SQL .= "SELECT 'GRANT ALL ON FUNCTION '||pg_catalog.quote_ident(proname)||'('||\n".
+ "pg_catalog.oidvectortypes(p.proargtypes)||') TO $safeuser;'\n".
+ "FROM pg_catalog.pg_proc p, pg_catalog.pg_namespace n\n".
+ "WHERE p.pronamespace = n.oid AND n.nspname = $safeschema2";
+ $res = $this->doQuery($SQL);
+ if (!$res) {
+ print "<b>FAILED</b>. Could not set rights for the user.</li>\n";
+ dieout("</ul>");
+ }
+ $this->doQuery("SET search_path = $safeschema");
+ $rows = $this->numRows($res);
+ while ($rows) {
+ $rows--;
+ $this->doQuery(pg_fetch_result($res, $rows, 0));
+ }
+ print "OK</li>";
+ }
$wgDBsuperuser = '';
return true; ## Reconnect as regular user
error_reporting( E_ALL );
if (!$res) {
print "<b>FAILED</b>. Make sure that the user \"$wgDBuser\" has SELECT access to the tsearch2 tables</li>\n";
- dieout("</uL>");
+ dieout("</ul>");
}
print "OK</li>";
## Do we have plpgsql installed?
- print "<li>Checking for plpgsql ...";
+ print "<li>Checking for Pl/Pgsql ...";
$SQL = "SELECT 1 FROM pg_catalog.pg_language WHERE lanname = 'plpgsql'";
$rows = $this->numRows($this->doQuery($SQL));
if ($rows < 1) {
- print "<b>FAILED</b>. Make sure the language plpgsql is installed for the database <tt>$wgDBname</tt></li>";
- dieout("</ul>");
+ // plpgsql is not installed, but if we have a pg_pltemplate table, we should be able to create it
+ print "not installed. Attempting to install Pl/Pgsql ...";
+ $SQL = "SELECT 1 FROM pg_catalog.pg_class c JOIN pg_catalog.pg_namespace n ON (n.oid = c.relnamespace) ".
+ "WHERE relname = 'pg_pltemplate' AND nspname='pg_catalog'";
+ $rows = $this->numRows($this->doQuery($SQL));
+ if ($rows >= 1) {
+ $result = $this->doQuery("CREATE LANGUAGE plpgsql");
+ if (!$result) {
+ print "<b>FAILED</b>. You need to install the language plpgsql in the database <tt>$wgDBname</tt></li>";
+ dieout("</ul>");
+ }
+ }
+ else {
+ print "<b>FAILED</b>. You need to install the language plpgsql in the database <tt>$wgDBname</tt></li>";
+ dieout("</ul>");
+ }
}
print "OK</li>\n";
$result = $this->doQuery("CREATE SCHEMA $wgDBmwschema");
if (!$result) {
print "<b>FAILED</b>.</li>\n";
- return false;
+ dieout("</ul>");
}
- print "ok</li>\n";
+ print "OK</li>\n";
}
else if ($result != $user) {
print "<li>Schema \"$wgDBmwschema\" exists but is not owned by \"$user\". Not ideal.</li>\n";
## Fix up the search paths if needed
print "<li>Setting the search path for user \"$user\" ...";
- $path = "$wgDBmwschema";
+ $path = $this->quote_ident($wgDBmwschema);
if ($wgDBts2schema !== $wgDBmwschema)
- $path .= ", $wgDBts2schema";
+ $path .= ", ". $this->quote_ident($wgDBts2schema);
if ($wgDBmwschema !== 'public' and $wgDBts2schema !== 'public')
$path .= ", public";
- $SQL = "ALTER USER $user SET search_path = $path";
+ $SQL = "ALTER USER $safeuser SET search_path = $path";
$result = pg_query($this->mConn, $SQL);
if (!$result) {
print "<b>FAILED</b>.</li>\n";
- return false;
+ dieout("</ul>");
}
- print "ok</li>\n";
+ print "OK</li>\n";
## Set for the rest of this session
$SQL = "SET search_path = $path";
$result = pg_query($this->mConn, $SQL);
if (!$result) {
print "<li>Failed to set search_path</li>\n";
- return false;
+ dieout("</ul>");
}
define( "POSTGRES_SEARCHPATH", $path );
}}
+ global $wgCommandLineMode;
+ ## If called from the command-line (e.g. importDump), only show errors
+ if ($wgCommandLineMode) {
+ $this->doQuery("SET client_min_messages = 'ERROR'");
+ }
+
return $this->mConn;
}
function freeResult( $res ) {
if ( !@pg_free_result( $res ) ) {
- throw new DBUnexpectedError($this, "Unable to free PostgreSQL result\n" );
+ throw new DBUnexpectedError($this, "Unable to free Postgres result\n" );
}
}
}
function insert( $table, $a, $fname = 'Database::insert', $options = array() ) {
- # PostgreSQL doesn't support options
+ # Postgres doesn't support options
# We have a go at faking one of them
# TODO: DELAYED, LOW_PRIORITY
}
/**
- * USE INDEX clause
- * PostgreSQL doesn't have them and returns ""
+ * Postgres does not have a "USE INDEX" clause, so return an empty string
*/
function useIndexClause( $index ) {
return '';
}
# REPLACE query wrapper
- # PostgreSQL simulates this with a DELETE followed by INSERT
+ # Postgres simulates this with a DELETE followed by INSERT
# $row is the row to insert, an associative array
# $uniqueIndexes is an array of indexes. Each element may be either a
# field name or an array of field names
/**
* Returns an SQL expression for a simple conditional.
- * Uses CASE on PostgreSQL.
+ * Uses CASE on Postgres
*
* @param string $cond SQL expression which will result in a boolean value
* @param string $trueVal SQL expression to return if true
return "E'" . pg_escape_string($s) . "'";
}
+ function quote_ident( $s ) {
+ return '"' . preg_replace( '/"/', '""', $s) . '"';
+ }
+
}
?>
dépôts / lhc / web / wiklou.git / blobdiff