index.php

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}

$conf->diff3 = false;
$diff3locations = array("/usr/bin", "/usr/local/bin", "/opt/csw/bin", "/usr/gnu/bin", "/usr/sfw/bin") + explode($sep, getenv("PATH"));
$diff3names = array("gdiff3", "diff3", "diff3.exe");

$diff3versioninfo = array('$1 --version 2>&1', 'diff3 (GNU diffutils)');
foreach ($diff3locations as $loc) {
	$exe = locate_executable($loc, $diff3names, $diff3versioninfo);
	if ($exe !== false) {
		$conf->diff3 = $exe;
		break;
	}
}

if ($conf->diff3)
	print "<li>Found GNU diff3: <tt>$conf->diff3</tt>.</li>";
else
	print "<li>GNU diff3 not found.</li>";

$conf->ImageMagick = false;
$imcheck = array( "/usr/bin", "/opt/csw/bin", "/usr/local/bin", "/sw/bin", "/opt/local/bin" );
foreach( $imcheck as $dir ) {
	$im = "$dir/convert";
	if( file_exists( $im ) ) {
		print "<li>Found ImageMagick: <tt>$im</tt>; image thumbnailing will be enabled if you enable uploads.</li>\n";
		$conf->ImageMagick = $im;
		break;
	}
}

$conf->HaveGD = function_exists( "imagejpeg" );
if( $conf->HaveGD ) {
	print "<li>Found GD graphics library built-in";
	if( !$conf->ImageMagick ) {
		print ", image thumbnailing will be enabled if you enable uploads";
	}
	print ".</li>\n";
} else {
	if( !$conf->ImageMagick ) {
		print "<li>Couldn't find GD library or ImageMagick; image thumbnailing disabled.</li>\n";
	}
}

$conf->UseImageResize = $conf->HaveGD || $conf->ImageMagick;

$conf->IP = dirname( dirname( __FILE__ ) );
print "<li>Installation directory: <tt>" . htmlspecialchars( $conf->IP ) . "</tt></li>\n";

$conf->ScriptPath = preg_replace( '{^(.*)/config.*$}', '$1', $_SERVER["PHP_SELF"] ); # was SCRIPT_NAME
print "<li>Script URI path: <tt>" . htmlspecialchars( $conf->ScriptPath ) . "</tt></li>\n";

print "<li style='font-weight:bold;color:green;font-size:110%'>Environment checked. You can install MediaWiki.</li>\n";
	$conf->posted = ($_SERVER["REQUEST_METHOD"] == "POST");

	$conf->Sitename = ucfirst( importPost( "Sitename", "" ) );
	$defaultEmail = empty( $_SERVER["SERVER_ADMIN"] )
		? 'root@localhost'
		: $_SERVER["SERVER_ADMIN"];
	$conf->EmergencyContact = importPost( "EmergencyContact", $defaultEmail );
	$conf->DBtype = importPost( "DBtype", $DefaultDBtype );
?>

<?php
	$conf->DBserver = importPost( "DBserver", "localhost" );
	$conf->DBname = importPost( "DBname", "wikidb" );
	$conf->DBuser = importPost( "DBuser", "wikiuser" );
	$conf->DBpassword = importPost( "DBpassword" );
	$conf->DBpassword2 = importPost( "DBpassword2" );
	$conf->SysopName = importPost( "SysopName", "WikiSysop" );
	$conf->SysopPass = importPost( "SysopPass" );
	$conf->SysopPass2 = importPost( "SysopPass2" );

	## MySQL specific:
	$conf->DBprefix     =  importPost( "DBprefix" );
	$conf->DBmysql5     = (importPost( "DBmysql5" ) == "true") ? "true" : "false";
	$conf->RootUser     =  importPost( "RootUser", "root" );
	$conf->RootPW       =  importPost( "RootPW", "-" );
	$conf->LanguageCode =  importPost( "LanguageCode", "en" );

	## Postgres specific:
	$conf->DBport      = importPost( "DBport",      "5432" );
	$conf->DBmwschema  = importPost( "DBmwschema",  "mediawiki" );
	$conf->DBts2schema = importPost( "DBts2schema", "public" );

/* Check for validity */
$errs = array();

if( $conf->Sitename == "" || $conf->Sitename == "MediaWiki" || $conf->Sitename == "Mediawiki" ) {
	$errs["Sitename"] = "Must not be blank or \"MediaWiki\"";
}
if( $conf->DBuser == "" ) {
	$errs["DBuser"] = "Must not be blank";
}
if( $conf->DBpassword == "" ) {
	$errs["DBpassword"] = "Must not be blank";
}
if( $conf->DBpassword != $conf->DBpassword2 ) {
	$errs["DBpassword2"] = "Passwords don't match!";
}
if( !preg_match( '/^[A-Za-z_0-9]*$/', $conf->DBprefix ) ) {
	$errs["DBprefix"] = "Invalid table prefix";
}

if( $conf->SysopPass == "" ) {
	$errs["SysopPass"] = "Must not be blank";
}
if( $conf->SysopPass != $conf->SysopPass2 ) {
	$errs["SysopPass2"] = "Passwords don't match!";
}

$conf->License = importRequest( "License", "none" );
if( $conf->License == "gfdl" ) {
	$conf->RightsUrl = "http://www.gnu.org/copyleft/fdl.html";
	$conf->RightsText = "GNU Free Documentation License 1.2";
	$conf->RightsCode = "gfdl";
	$conf->RightsIcon = '${wgStylePath}/common/images/gnu-fdl.png';
} elseif( $conf->License == "none" ) {
	$conf->RightsUrl = $conf->RightsText = $conf->RightsCode = $conf->RightsIcon = "";
} else {
	$conf->RightsUrl = importRequest( "RightsUrl", "" );
	$conf->RightsText = importRequest( "RightsText", "" );
	$conf->RightsCode = importRequest( "RightsCode", "" );
	$conf->RightsIcon = importRequest( "RightsIcon", "" );
}

$conf->Shm = importRequest( "Shm", "none" );
$conf->MCServers = importRequest( "MCServers" );

/* Test memcached servers */

if ( $conf->Shm == 'memcached' && $conf->MCServers ) {
	$conf->MCServerArray = array_map( 'trim', explode( ',', $conf->MCServers ) );
	foreach ( $conf->MCServerArray as $server ) {
		$error = testMemcachedServer( $server );
		if ( $error ) {
			$errs["MCServers"] = $error;
			break;
		}
	}
} else if ( $conf->Shm == 'memcached' ) {
	$errs["MCServers"] = "Please specify at least one server if you wish to use memcached";
}

/* default values for installation */
$conf->Email	=importRequest("Email", "email_enabled");
$conf->Emailuser=importRequest("Emailuser", "emailuser_enabled");
$conf->Enotif	=importRequest("Enotif", "enotif_allpages");
$conf->Eauthent	=importRequest("Eauthent", "eauthent_enabled");

if( $conf->posted && ( 0 == count( $errs ) ) ) {
	do { /* So we can 'continue' to end prematurely */
		$conf->Root = ($conf->RootPW != "");

		/* Load up the settings and get installin' */
		$local = writeLocalSettings( $conf );
		echo "<p><b>Generating configuration file...</b></p>\n";
		// for debugging: // echo "<pre>" . htmlspecialchars( $local ) . "</pre>\n";
		
		$wgCommandLineMode = false;
		chdir( ".." );
		eval($local);
		$conf->DBtypename = '';
		foreach (array_keys($ourdb) as $db) {
			if ($conf->DBtype === $db)
				$conf->DBtypename = $ourdb[$db]['fullname'];
		}
		if (! $conf->DBtypename) {
			$errs["DBtype"] = "Unknown database type '$conf->DBtype'";
			continue;
		}
		print "<li>Database type: {$conf->DBtypename}</li>\n";
		$dbclass = 'Database'.ucfirst($conf->DBtype);
		$wgDBtype = $conf->DBtype;
		$wgDBadminuser = "root";
		$wgDBadminpassword = $conf->RootPW;

		## Mysql specific:
		$wgDBprefix = $conf->DBprefix;

		## Postgres specific:
		$wgDBport      = $conf->DBport;
		$wgDBmwschema  = $conf->DBmwschema;
		$wgDBts2schema = $conf->DBts2schema;

		$wgCommandLineMode = true;
		$wgUseDatabaseMessages = false;	/* FIXME: For database failure */
		require_once( "includes/Setup.php" );
		chdir( "config" );

		require_once( "maintenance/InitialiseMessages.inc" );

		$wgTitle = Title::newFromText( "Installation script" );
error_reporting( E_ALL );
	print "<li>Loading class: $dbclass";
		$dbc = new $dbclass;

		if( $conf->DBtype == 'mysql' ) {
			$mysqlOldClient = version_compare( mysql_get_client_info(), "4.1.0", "lt" );
			if( $mysqlOldClient ) {
				print "<li><b>PHP is linked with old MySQL client libraries. If you are
					using a MySQL 4.1 server and have problems connecting to the database,
					see <a href='http://dev.mysql.com/doc/mysql/en/old-client.html'
			 		>http://dev.mysql.com/doc/mysql/en/old-client.html</a> for help.</b></li>\n";
			}
			$ok = true; # Let's be optimistic
			
			# Decide if we're going to use the superuser or the regular database user
			if( $conf->RootPW == '-' ) {
				# Regular user
				$conf->Root = false;
				$db_user = $wgDBuser;
				$db_pass = $wgDBpassword;
			} else {
				# Superuser
				$conf->Root = true;
				$db_user = $conf->RootUser;
				$db_pass = $conf->RootPW;
			}
			
			# Attempt to connect
			echo( "<li>Attempting to connect to database server as $db_user..." );
			$wgDatabase = Database::newFromParams( $wgDBserver, $db_user, $db_pass, '', 1 );

			# Check the connection and respond to errors
			if( $wgDatabase->isOpen() ) {
				# Seems OK
				$ok = true;
				$wgDBadminuser = $db_user;
				$wgDBadminpassword = $db_pass;
				echo( "success.</li>\n" );
				$wgDatabase->ignoreErrors( true );
				$myver = $wgDatabase->getServerVersion();
			} else {
				# There were errors, report them and back out
				$ok = false;
				$errno = mysql_errno();
				$errtx = htmlspecialchars( mysql_error() );
				switch( $errno ) {
					case 1045:
					case 2000:
						echo( "failed due to authentication errors. Check passwords.</li>" );
						if( $conf->Root ) {
							# The superuser details are wrong
							$errs["RootUser"] = "Check username";
							$errs["RootPW"] = "and password";
						} else {
							# The regular user details are wrong
							$errs["DBuser"] = "Check username";
							$errs["DBpassword"] = "and password";
						}
						break;
					case 2002:
					case 2003:
					default:
						# General connection problem
						echo( "failed with error [$errno] $errtx.</li>\n" );
						$errs["DBserver"] = "Connection failed";
						break;
				} # switch
			} #conn. att.
		
			if( !$ok ) { continue; }

		} else /* not mysql */ {
			echo( "<li>Attempting to connect to database server as $wgDBuser..." );
			$wgDatabase = $dbc->newFromParams($wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, 1);
			if (!$wgDatabase->isOpen()) {
				print " error: " . $wgDatabase->lastError() . "</li>\n";
			} else {
				$wgDatabase->ignoreErrors(true);
				$myver = $wgDatabase->getServerVersion();
			}
		}

		if ( !$wgDatabase->isOpen() ) {
			$errs["DBserver"] = "Couldn't connect to database";
			continue;
		}

		print "<li>Connected to $myver";
		if ($conf->DBtype == 'mysql') {
			if( version_compare( $myver, "4.0.14" ) < 0 ) {
				die( " -- mysql 4.0.14 or later required. Aborting." );
			}
			$mysqlNewAuth   = version_compare( $myver, "4.1.0", "ge" );
			if( $mysqlNewAuth && $mysqlOldClient ) {
				print "; <b class='error'>You are using MySQL 4.1 server, but PHP is linked
				 	to old client libraries; if you have trouble with authentication, see
			 		<a href='http://dev.mysql.com/doc/mysql/en/old-client.html'
				 	>http://dev.mysql.com/doc/mysql/en/old-client.html</a> for help.</b>";
			}
			if( $wgDBmysql5 ) {
				if( $mysqlNewAuth ) {
					print "; enabling MySQL 4.1/5.0 charset mode";
				} else {
					print "; <b class='error'>MySQL 4.1/5.0 charset mode enabled,
						but older version detected; will likely fail.</b>";
				}
			}
			print "</li>\n";

			@$sel = $wgDatabase->selectDB( $wgDBname );
			if( $sel ) {
				print "<li>Database <tt>" . htmlspecialchars( $wgDBname ) . "</tt> exists</li>\n";
			} else {
				$err = mysql_errno();
				if ( $err != 1049 ) {
					print "<ul><li>Error selecting database $wgDBname: $err " .
						htmlspecialchars( mysql_error() ) . "</li></ul>";
					continue;
				}
				$res = $wgDatabase->query( "CREATE DATABASE `$wgDBname`" );
				if( !$res ) {
					print "<li>Couldn't create database <tt>" .
						htmlspecialchars( $wgDBname ) .
						"</tt>; try with root access or check your username/pass.</li>\n";
					$errs["RootPW"] = "&lt;- Enter";
					continue;
				}
				print "<li>Created database <tt>" . htmlspecialchars( $wgDBname ) . "</tt></li>\n";
			}
			$wgDatabase->selectDB( $wgDBname );
		}

		if( $wgDatabase->tableExists( "cur" ) || $wgDatabase->tableExists( "revision" ) ) {
			print "<li>There are already MediaWiki tables in this database. Checking if updates are needed...</li>\n";

			# Create user if required (todo: other databases)
			if ( $conf->Root && $conf->DBtype == 'mysql') {
				$conn = $dbc->newFromParams( $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, 1 );
				if ( $conn->isOpen() ) {
					print "<li>DB user account ok</li>\n";
					$conn->close();
				} else {
					print "<li>Granting user permissions...";
					if( $mysqlOldClient && $mysqlNewAuth ) {
						print " <b class='error'>If the next step fails, see <a href='http://dev.mysql.com/doc/mysql/en/old-client.html'>http://dev.mysql.com/doc/mysql/en/old-client.html</a> for help.</b>";
					}
					print "</li>\n";
					dbsource( "../maintenance/users.sql", $wgDatabase );
				}
			}
			if ( $conf->DBtype == 'mysql') {
				print "<pre>\n";
				chdir( ".." );
				flush();
				do_all_updates();
				chdir( "config" );
				print "</pre>\n";
			}
			print "<li>Finished update checks.</li>\n";
		} else {
			# FIXME: Check for errors
			print "<li>Creating tables...";
			if ($conf->DBtype == 'mysql') {
				if( $wgDBmysql5 ) {
					print " using MySQL 5 table defs...";
					dbsource( "../maintenance/mysql5/tables.sql", $wgDatabase );
				} else {
					print " using MySQL 4 table defs...";
					dbsource( "../maintenance/tables.sql", $wgDatabase );
				}
				dbsource( "../maintenance/interwiki.sql", $wgDatabase );
			} else if ($conf->DBtype == 'postgres') {
				dbsource( "../maintenance/postgres/tables.sql", $wgDatabase );
				$wgDatabase->update_interwiki();
			} else if ($conf->DBtype == 'oracle') {
				dbsource( "../maintenance/oracle/tables.sql", $wgDatabase );
				dbsource( "../maintenance/oracle/interwiki.sql", $wgDatabase );
			}
			else {
				$errs["DBtype"] = "Do not know how to handle database type '$conf->DBtype'";
				continue;
			}

			print " done.</li>\n";

			print "<li>Initializing data...";
			$wgDatabase->insert( 'site_stats',
				array( 'ss_row_id'        => 1,
				       'ss_total_views'   => 0,
				       'ss_total_edits'   => 0,
				       'ss_good_articles' => 0 ) );
					   
			# Set up the "regular user" account *if we can, and if we need to*
			if( $conf->Root ) {
				# See if we need to
				$wgDatabase2 = $dbc->newFromParams( $wgDBserver, $wgDBuser, $wgDBpassword, $wgDBname, 1 );
				if( $wgDatabase2->isOpen() ) {
					# Nope, just close the test connection and continue
					$wgDatabase2->close();
					echo( "<li>User $wgDBuser exists. Skipping grants.</li>" );
				} else {
					# Yes, so run the grants
					echo( "<li>Granting user permissions to $wgDBuser on $wgDBname..." );
					dbsource( "../maintenance/users.sql", $wgDatabase );
					echo( "success.</li>" );
				}
			}
					   
			if( $conf->SysopName ) {
				$u = User::newFromName( $conf->getSysopName() );
				if ( 0 == $u->idForName() ) {
					$u->addToDatabase();
					$u->setPassword( $conf->getSysopPass() );
					$u->saveSettings();

					$u->addGroup( "sysop" );
					$u->addGroup( "bureaucrat" );

					print "<li>Created sysop account <tt>" .
						htmlspecialchars( $conf->SysopName ) . "</tt>.</li>\n";
				} else {
					print "<li>Could not create user - already exists!</li>\n";
				}
			} else {