<?php
/**
 * BuddyPress Forums Deprecated Functions.
 *
 * This file contains all the deprecated functions for BuddyPress forums since
 * version 1.7. This was a major update for the forums component, moving from
 * bbPress 1.x to bbPress 2.x.
 *
 * @package BuddyPress
 * @subpackage Forums
 */

// Exit if accessed directly.
defined( 'ABSPATH' ) || exit;

function bp_forums_add_admin_menu() {

	if ( !is_super_admin() )
		return false;

	$page  = bp_core_do_network_admin()  ? 'settings.php' : 'options-general.php';

	// Add the administration tab under the "Site Admin" tab for site administrators.
	$hook = add_submenu_page( $page, __( 'Forums (Legacy)', 'buddypress' ), __( 'Forums (Legacy)', 'buddypress' ), 'manage_options', 'bb-forums-setup', "bp_forums_bbpress_admin" );

	// Fudge the highlighted subnav item when on the BuddyPress Forums admin page.
	add_action( "admin_head-$hook", 'bp_core_modify_admin_menu_highlight' );
}
add_action( bp_core_admin_hook(), 'bp_forums_add_admin_menu' );

function bp_forums_configure_existing_install() {
	global $wpdb, $bbdb;

	check_admin_referer( 'bp_forums_existing_install_init' );

	// Sanitize $_REQUEST['bbconfigloc'].
	$_REQUEST['bbconfigloc'] = apply_filters( 'bp_forums_bbconfig_location', $_REQUEST['bbconfigloc'] );

	if ( false === strpos( $_REQUEST['bbconfigloc'], 'bb-config.php' ) ) {
		if ( '/' != substr( $_REQUEST['bbconfigloc'], -1, 1 ) )
			$_REQUEST['bbconfigloc'] .= '/';

		$_REQUEST['bbconfigloc'] .= 'bb-config.php';
	}

	bp_update_option( 'bb-config-location', $_REQUEST['bbconfigloc'] );

	if ( !file_exists( $_REQUEST['bbconfigloc'] ) ) {
		return false;
	}

	return true;
}

function bp_forums_bbpress_install( $location = '' ) {
	global $wpdb, $bbdb;

	check_admin_referer( 'bp_forums_new_install_init' );

	if ( empty( $location ) ) {
		$location = ABSPATH . 'bb-config.php';
	}

	$bp = buddypress();

	// Create the bb-config.php file.
	$initial_write = bp_forums_bbpress_write(
		$bp->plugin_dir . '/bp-forums/bbpress/bb-config-sample.php',
		$location,
		array(
			"define( 'BBDB_NAME',"  => array( "'bbpress'",                     	"'" . DB_NAME . "'" ),
			"define( 'BBDB_USER',"  => array( "'username'",                    	"'" . DB_USER . "'" ),
			"define( 'BBDB_PASSWO"  => array( "'password'",                    	"'" . DB_PASSWORD . "'" ),
			"define( 'BBDB_HOST',"  => array( "'localhost'",                   	"'" . DB_HOST . "'" ),
			"define( 'BBDB_CHARSE"  => array( "'utf8'",                        	"'" . DB_CHARSET . "'" ),
			"define( 'BBDB_COLLAT"  => array( "''",                            	"'" . DB_COLLATE . "'" ),
			"define( 'BB_AUTH_KEY"  => array( "'put your unique phrase here'",  "'" . addslashes( AUTH_KEY ) . "'" ),
			"define( 'BB_SECURE_A"  => array( "'put your unique phrase here'",  "'" . addslashes( SECURE_AUTH_KEY ) . "'" ),
			"define( 'BB_LOGGED_I"  => array( "'put your unique phrase here'",  "'" . addslashes( LOGGED_IN_KEY ) . "'" ),
			"define( 'BB_NONCE_KE"  => array( "'put your unique phrase here'",  "'" . addslashes( NONCE_KEY ) . "'" ),
			"\$bb_table_prefix = '" => array( "'bb_'",                          "'" . $bp->table_prefix . "bb_'" ),
			"define( 'BB_LANG', '"  => array( "''",                             "'" . get_locale() . "'" )
		)
	);

	// Add the custom user and usermeta entries to the config file.
	if ( $initial_write == 1 ) {
		$file = file_get_contents( $location );
	} else {
		$file = &$initial_write;
	}

	$file = trim( $file );
	if ( '?>' == substr( $file, -2, 2 ) ) {
		$file = substr( $file, 0, -2 );
	}

	$file .= "\n" .   '$bb->custom_user_table = \'' . $wpdb->users . '\';';
	$file .= "\n" .   '$bb->custom_user_meta_table = \'' . $wpdb->usermeta . '\';';
	$file .= "\n\n" . '$bb->uri = \'' . $bp->plugin_url . '/bp-forums/bbpress/\';';
	$file .= "\n" .   '$bb->name = \'' . get_blog_option( bp_get_root_blog_id(), 'blogname' ) . ' ' . __( 'Forums', 'buddypress' ) . '\';';

	if ( is_multisite() ) {
		$file .= "\n" .   '$bb->wordpress_mu_primary_blog_id = ' . bp_get_root_blog_id() . ';';
	}

	if ( defined( 'AUTH_SALT' ) ) {
		$file .= "\n\n" . 'define(\'BB_AUTH_SALT\', \'' . addslashes( AUTH_SALT ) . '\');';
	}

	if ( defined( 'LOGGED_IN_SALT' ) ) {
		$file .= "\n" .   'define(\'BB_LOGGED_IN_SALT\', \'' . addslashes( LOGGED_IN_SALT ) . '\');';
	}

	if ( defined( 'SECURE_AUTH_SALT' ) ) {
		$file .= "\n" .   'define(\'BB_SECURE_AUTH_SALT\', \'' . addslashes( SECURE_AUTH_SALT ) . '\');';
	}

	$file .= "\n\n" . 'define(\'WP_AUTH_COOKIE_VERSION\', 2);';
	$file .= "\n\n" . '?>';

	if ( $initial_write == 1 ) {
		$file_handle = fopen( $location, 'w' );
		fwrite( $file_handle, $file );
		fclose( $file_handle );
	} else {
		$initial_write = $file;
	}

	bp_update_option( 'bb-config-location', $location );
	return $initial_write;
}

function bp_forums_bbpress_write( $file_source, $file_target, $alterations ) {

	if ( empty( $file_source ) || !file_exists( $file_source ) || !is_file( $file_source ) ) {
		return -1;
	}

	if ( empty( $file_target ) ) {
		$file_target = $file_source;
	}

	if ( empty( $alterations ) || !is_array( $alterations ) ) {
		return -2;
	}

	// Get the existing lines in the file.
	$lines = file( $file_source );

	// Initialise an array to store the modified lines.
	$modified_lines = array();

	// Loop through the lines and modify them.
	foreach ( (array) $lines as $line ) {
		if ( isset( $alterations[substr( $line, 0, 20 )] ) ) {
			$alteration = $alterations[substr( $line, 0, 20 )];
			$modified_lines[] = str_replace( $alteration[0], $alteration[1], $line );
		} else {
			$modified_lines[] = $line;
		}
	}

	$writable = true;
	if ( file_exists( $file_target ) ) {
		if ( !is_writable( $file_target ) ) {
			$writable = false;
		}
	} else {
		$dir_target = dirname( $file_target );

		if ( file_exists( $dir_target ) ) {
			if ( !is_writable( $dir_target ) || !is_dir( $dir_target ) ) {
				$writable = false;
			}
		} else {
			$writable = false;
		}
	}

	if ( empty( $writable ) ) {
		return trim( join( null, $modified_lines ) );
	}

	// Open the file for writing - rewrites the whole file.
	$file_handle = fopen( $file_target, 'w' );

	// Write lines one by one to avoid OS specific newline hassles.
	foreach ( (array) $modified_lines as $modified_line ) {
		if ( strlen( $modified_line ) - 2 === strrpos( $modified_line, '?>' ) ) {
			$modified_line = '?>';
		}

		fwrite( $file_handle, $modified_line );
		if ( $modified_line == '?>' ) {
			break;
		}
	}

	// Close the config file.
	fclose( $file_handle );

	@chmod( $file_target, 0666 );

	return 1;
}