<?php

if(!is_dir("/usr/local/apachemodsecurity"))  {
	safe_mkdir("/usr/local/apachemodsecurity");
	conf_mount_rw();
}

function apache_mod_security_install() {
	global $config, $g;
}

function apache_mod_security_deinstall() {
	global $config, $g;
	exec("rm -rf /usr/local/apachemodsecurity");
}

function apache_mod_security_resync() {
	global $config, $g;
	generate_apache_configuration();
}

// Generate mod_proxy specific configuration
function generate_apache_configuration() {
	global $config, $g;

	// Syntax:ProxyPreserveHost On|Off ?
	$mod_proxy = "ProxyRequests on\n";
	
	$mod_proxy = <<<EOF
<Proxy *>
	Order deny,allow
	Allow from all
</Proxy>	

EOF;

	// Setup mod_proxy entries
	if($config['installedpackages']['apachemodsecurity']) {
		foreach($config['installedpackages']['apachemodsecurity']['config'] as $ams) {
			$backend_sites = "";
			foreach($ams['row'] as $row)
				$backend_sites .= "{$row['webserveripaddr']} ";
			$sitename = str_replace(" ", "", $ams['sitename']);
			$mod_proxy .= "\n";
			if($backend_sites) {
				$mod_proxy .= "ProxyPass /{$sitename}  {$backend_sites}\n";
				$mod_proxy .= "ProxyPassReverse / {$backend_sites}\n";
			}
		}
	}

	// Set global site e-mail
	if($config['installedpackages']['apache_mod_security_settings']['config']['globalsiteadminemail']) {
		$global_site_email = $config['installedpackages']['apache_mod_security_settings']['config']['globalsiteadminemail'];
	} else {
		$global_site_email = "admin@admin.comn";
		log_error("WARNING!  Global site Administrator E-Mail address has not been set.  Defaulting to bogus e-mail address.");
	}

	// Set ServerName
	if($config['installedpackages']['apache_mod_security_settings']['config']['hostname']) {
		$servername = "ServerName {$config['installedpackages']['apache_mod_security_settings']['config']['hostname']}\n";
	else 
		$servername = `hostname`;
		
	// Set global listening directive
	if($config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoipaddr']) {
		$global_listen  = "Listen " . $config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoipaddr'];
		if($config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoport'])
			$global_listen .= ":" . $config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoport'];
		else 
			$global_listen .= ":80";
	} else {
		$global_listen = "Listen {$config['system']['hostname']}.{$config['system']['domain']}";
		if($config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoport'])
			$global_listen .= ":" . $config['installedpackages']['apache_mod_security_settings']['config']['globalbindtoport'];
		else 
			$global_listen .= ":80";
	}

	// Mod_security enabled?
	if($config['installedpackages']['apache_mod_security_settings']['config']['enablemodsecurity'])  {
		$enable_mod_security = true;
		$mod_security = <<< EOF
<IfModule mod_security.c>
    # Turn the filtering engine On or Off
    SecFilterEngine On

    # Make sure that URL encoding is valid
    SecFilterCheckURLEncoding On

    # Unicode encoding check
    SecFilterCheckUnicodeEncoding Off

    # Only allow bytes from this range
    SecFilterForceByteRange 0 255

    # Only log suspicious requests
    SecAuditEngine RelevantOnly

    # The name of the audit log file
    SecAuditLog logs/audit_log
    # Debug level set to a minimum
    SecFilterDebugLog logs/modsec_debug_log    
    SecFilterDebugLevel 0

    # Should mod_security inspect POST payloads
    SecFilterScanPOST On

    # By default log and deny suspicious requests
    # with HTTP status 500
    SecFilterDefaultAction "deny,log,status:500"
</IfModule>
EOF;
		
}
	$apache_config = <<<EOF
##################################################################################
# NOTE: This file was generated by the pfSense package management system.        #
#       Please do not edit this file by hand!   If you need to add functionality #
#       then edit /usr/local/pkg/apache_mod_security* files.                     #
#                                                                                #
#       And don't forget to submit your changes to coreteam@pfsense.org          #
###################################################################################
#
# This is the main Apache HTTP server configuration file.  It contains the
# configuration directives that give the server its instructions.
# See <URL:http://httpd.apache.org/docs/2.2> for detailed information.
# In particular, see 
# <URL:http://httpd.apache.org/docs/2.2/mod/directives.html>
# for a discussion of each configuration directive.
#
# Do NOT simply read the instructions in here without understanding
# what they do.  They're here only as hints or reminders.  If you are unsure
# consult the online docs. You have been warned.  
#
# Configuration and logfile names: If the filenames you specify for many
# of the server's control files begin with "/" (or "drive:/" for Win32), the
# server will use that explicit path.  If the filenames do *not* begin
# with "/", the value of ServerRoot is prepended -- so "/var/log/foo_log"
# with ServerRoot set to "/usr/local" will be interpreted by the
# server as "/usr/local//var/log/foo_log".

#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# Do not add a slash at the end of the directory path.  If you point
# ServerRoot at a non-local disk, be sure to point the LockFile directive
# at a local disk.  If you wish to share the same ServerRoot for multiple
# httpd daemons, you will need to change at least LockFile and PidFile.
#
ServerRoot "/usr/local"

#
# Listen: Allows you to bind Apache to specific IP addresses and/or
# ports, instead of the default. See also the <VirtualHost>
# directive.
#
# Change this to Listen on specific IP addresses as shown below to 
# prevent Apache from glomming onto all bound IP addresses.
#
{$global_listen}

#
# Dynamic Shared Object (DSO) Support
#
# To be able to use the functionality of a module which was built as a DSO you
# have to place corresponding `LoadModule' lines at this location so the
# directives contained in it are actually available _before_ they are used.
# Statically compiled modules (those listed by `httpd -l') do not need
# to be loaded here.
#
# Example:
# LoadModule foo_module modules/mod_foo.so
#
# have to place corresponding `LoadModule' lines at this location so the
# LoadModule foo_module modules/mod_foo.so
LoadModule authn_file_module libexec/apache22/mod_authn_file.so
LoadModule authn_dbm_module libexec/apache22/mod_authn_dbm.so
LoadModule authn_anon_module libexec/apache22/mod_authn_anon.so
LoadModule authn_default_module libexec/apache22/mod_authn_default.so
LoadModule authn_alias_module libexec/apache22/mod_authn_alias.so
LoadModule authz_host_module libexec/apache22/mod_authz_host.so
LoadModule authz_groupfile_module libexec/apache22/mod_authz_groupfile.so
LoadModule authz_user_module libexec/apache22/mod_authz_user.so
LoadModule authz_dbm_module libexec/apache22/mod_authz_dbm.so
LoadModule authz_owner_module libexec/apache22/mod_authz_owner.so
LoadModule authz_default_module libexec/apache22/mod_authz_default.so
LoadModule auth_basic_module libexec/apache22/mod_auth_basic.so
LoadModule auth_digest_module libexec/apache22/mod_auth_digest.so
LoadModule file_cache_module libexec/apache22/mod_file_cache.so
LoadModule cache_module libexec/apache22/mod_cache.so
LoadModule disk_cache_module libexec/apache22/mod_disk_cache.so
LoadModule dumpio_module libexec/apache22/mod_dumpio.so
LoadModule include_module libexec/apache22/mod_include.so
LoadModule filter_module libexec/apache22/mod_filter.so
LoadModule charset_lite_module libexec/apache22/mod_charset_lite.so
LoadModule deflate_module libexec/apache22/mod_deflate.so
LoadModule log_config_module libexec/apache22/mod_log_config.so
LoadModule logio_module libexec/apache22/mod_logio.so
LoadModule env_module libexec/apache22/mod_env.so
LoadModule mime_magic_module libexec/apache22/mod_mime_magic.so
LoadModule cern_meta_module libexec/apache22/mod_cern_meta.so
LoadModule expires_module libexec/apache22/mod_expires.so
LoadModule headers_module libexec/apache22/mod_headers.so
LoadModule usertrack_module libexec/apache22/mod_usertrack.so
LoadModule unique_id_module libexec/apache22/mod_unique_id.so
LoadModule setenvif_module libexec/apache22/mod_setenvif.so
LoadModule version_module libexec/apache22/mod_version.so
LoadModule proxy_module libexec/apache22/mod_proxy.so
LoadModule proxy_connect_module libexec/apache22/mod_proxy_connect.so
LoadModule proxy_ftp_module libexec/apache22/mod_proxy_ftp.so
LoadModule proxy_http_module libexec/apache22/mod_proxy_http.so
LoadModule proxy_ajp_module libexec/apache22/mod_proxy_ajp.so
LoadModule proxy_balancer_module libexec/apache22/mod_proxy_balancer.so
LoadModule ssl_module libexec/apache22/mod_ssl.so
LoadModule mime_module libexec/apache22/mod_mime.so
LoadModule status_module libexec/apache22/mod_status.so
LoadModule autoindex_module libexec/apache22/mod_autoindex.so
LoadModule asis_module libexec/apache22/mod_asis.so
LoadModule info_module libexec/apache22/mod_info.so
LoadModule cgi_module libexec/apache22/mod_cgi.so
LoadModule vhost_alias_module libexec/apache22/mod_vhost_alias.so
LoadModule negotiation_module libexec/apache22/mod_negotiation.so
LoadModule dir_module libexec/apache22/mod_dir.so
LoadModule imagemap_module libexec/apache22/mod_imagemap.so
LoadModule actions_module libexec/apache22/mod_actions.so
LoadModule speling_module libexec/apache22/mod_speling.so
LoadModule userdir_module libexec/apache22/mod_userdir.so
LoadModule alias_module libexec/apache22/mod_alias.so
LoadModule rewrite_module libexec/apache22/mod_rewrite.so

<IfModule !mpm_netware_module>
<IfModule !mpm_winnt_module>
#
# If you wish httpd to run as a different user or group, you must run
# httpd as root initially and it will switch.  
#
# User/Group: The name (or #number) of the user/group to run httpd as.
# It is usually good practice to create a dedicated user and group for
# running httpd, as with most system services.
#
User www
Group www

</IfModule>
</IfModule>

# 'Main' server configuration
#
# The directives in this section set up the values used by the 'main'
# server, which responds to any requests that aren't handled by a
# <VirtualHost> definition.  These values also provide defaults for
# any <VirtualHost> containers you may define later in the file.
#
# All of these directives may appear inside <VirtualHost> containers,
# in which case these default settings will be overridden for the
# virtual host being defined.
#

#
# ServerAdmin: Your address, where problems with the server should be
# e-mailed.  This address appears on some server-generated pages, such
# as error documents.  e.g. admin@your-domain.com
#
ServerAdmin {$global_site_email}

#
# ServerName gives the name and port that the server uses to identify itself.
# This can often be determined automatically, but we recommend you specify
# it explicitly to prevent problems during startup.
#
# If your host doesn't have a registered DNS name, enter its IP address here.
#
{$servername}

#
# DocumentRoot: The directory out of which you will serve your
# documents. By default, all requests are taken from this directory, but
# symbolic links and aliases may be used to point to other locations.
#
DocumentRoot "/usr/local/apachemodsecurity"

#
# Each directory to which Apache has access can be configured with respect
# to which services and features are allowed and/or disabled in that
# directory (and its subdirectories). 
#
# First, we configure the "default" to be a very restrictive set of 
# features.  
#
<Directory />
    AllowOverride None
    Order deny,allow
    Deny from all
</Directory>

#
# Note that from this point forward you must specifically allow
# particular features to be enabled - so if something's not working as
# you might expect, make sure that you have specifically enabled it
# below.
#

#
# This should be changed to whatever you set DocumentRoot to.
#
#<Directory "/usr/local/www/apachemodsecurity/">
#    #
#    # Possible values for the Options directive are "None", "All",
#    # or any combination of:
#    #   Indexes Includes FollowSymLinks SymLinksifOwnerMatch ExecCGI MultiViews
#    #
#    # Note that "MultiViews" must be named *explicitly* --- "Options All"
#    # doesn't give it to you.
#    #
#    # The Options directive is both complicated and important.  Please see
#    # http://httpd.apache.org/docs/2.2/mod/core.html#options
#    # for more information.
#    #
#    Options Indexes FollowSymLinks
#
#    #
#    # AllowOverride controls what directives may be placed in .htaccess files.
#    # It can be "All", "None", or any combination of the keywords:
#    #   Options FileInfo AuthConfig Limit
#    #
#    AllowOverride None
#
#    #
#    # Controls who can get stuff from this server.
#    #
#    Order allow,deny
#    Allow from all
#
#</Directory>
#
#
# DirectoryIndex: sets the file that Apache will serve if a directory
# is requested.
#
#<IfModule dir_module>
#    DirectoryIndex index.html
#</IfModule>
#
#
# The following lines prevent .htaccess and .htpasswd files from being 
# viewed by Web clients. 
#
#<FilesMatch "^\.ht">
#    Order allow,deny
#    Deny from all
#    Satisfy All
#</FilesMatch>
#
#
# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here.  If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog "/var/log/httpd-error.log"

#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn

<IfModule log_config_module>
    #
    # The following directives define some format nicknames for use with
    # a CustomLog directive (see below).
    #
    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
    LogFormat "%h %l %u %t \"%r\" %>s %b" common

    <IfModule logio_module>
      # You need to enable mod_logio.c to use %I and %O
      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
    </IfModule>

    #
    # The location and format of the access logfile (Common Logfile Format).
    # If you do not define any access logfiles within a <VirtualHost>
    # container, they will be logged here.  Contrariwise, if you *do*
    # define per-<VirtualHost> access logfiles, transactions will be
    # logged therein and *not* in this file.
    #
    #CustomLog "/var/log/httpd-access.log" common

    #
    # If you prefer a logfile with access, agent, and referer information
    # (Combined Logfile Format) you can use the following directive.
    #
    CustomLog "/var/log/httpd-access.log" combined
</IfModule>

#<IfModule alias_module>
#    #
#    # Redirect: Allows you to tell clients about documents that used to 
#    # exist in your server's namespace, but do not anymore. The client 
#    # will make a new request for the document at its new location.
#    # Example:
#    # Redirect permanent /foo http://www.example.com/bar
#
#    #
#    # Alias: Maps web paths into filesystem paths and is used to
#    # access content that does not live under the DocumentRoot.
#    # Example:
#    # Alias /webpath /full/filesystem/path
#    #
#    # If you include a trailing / on /webpath then the server will
#    # require it to be present in the URL.  You will also likely
#    # need to provide a <Directory> section to allow access to
#    # the filesystem path.
#
#    #
#    # ScriptAlias: This controls which directories contain server scripts. 
#    # ScriptAliases are essentially the same as Aliases, except that
#    # documents in the target directory are treated as applications and
#    # run by the server when requested rather than as documents sent to the
#    # client.  The same rules about trailing "/" apply to ScriptAlias
#    # directives as to Alias.
#    #
#    ScriptAlias /cgi-bin/ "/usr/local/www/apache22/cgi-bin/"
#
#</IfModule>

#<IfModule cgid_module>
#    #
#    # ScriptSock: On threaded servers, designate the path to the UNIX
#    # socket used to communicate with the CGI daemon of mod_cgid.
#    #
#    #Scriptsock /var/run/cgisock
#</IfModule>

#
# "/usr/local/www/apache22/cgi-bin" should be changed to whatever your ScriptAliased
# CGI directory exists, if you have that configured.
#
#<Directory "/usr/local/www/apache22/cgi-bin">
#    AllowOverride None
#    Options None
#    Order allow,deny
#    Allow from all
#</Directory>

#
# DefaultType: the default MIME type the server will use for a document
# if it cannot otherwise determine one, such as from filename extensions.
# If your server contains mostly text or HTML documents, "text/plain" is
# a good value.  If most of your content is binary, such as applications
# or images, you may want to use "application/octet-stream" instead to
# keep browsers from trying to display binary files as though they are
# text.
#
DefaultType text/plainm

<IfModule mime_module>
    #
    # TypesConfig points to the file containing the list of mappings from
    # filename extension to MIME-type.
    #
    TypesConfig etc/apache22/mime.types

    #
    # AddType allows you to add to or override the MIME configuration
    # file specified in TypesConfig for specific file types.
    #
    #AddType application/x-gzip .tgz
    #
    # AddEncoding allows you to have certain browsers uncompress
    # information on the fly. Note: Not all browsers support this.
    #
    #AddEncoding x-compress .Z
    #AddEncoding x-gzip .gz .tgz
    #
    # If the AddEncoding directives above are commented-out, then you
    # probably should define those extensions to indicate media types:
    #
    AddType application/x-compress .Z
    AddType application/x-gzip .gz .tgz

    #
    # AddHandler allows you to map certain file extensions to "handlers":
    # actions unrelated to filetype. These can be either built into the server
    # or added with the Action directive (see below)
    #
    # To use CGI scripts outside of ScriptAliased directories:
    # (You will also need to add "ExecCGI" to the "Options" directive.)
    #
    #AddHandler cgi-script .cgi

    # For type maps (negotiated resources):
    #AddHandler type-map var

    #
    # Filters allow you to process content before it is sent to the client.
    #
    # To parse .shtml files for server-side includes (SSI):
    # (You will also need to add "Includes" to the "Options" directive.)
    #
    #AddType text/html .shtml
    #AddOutputFilter INCLUDES .shtml
</IfModule>

#
# The mod_mime_magic module allows the server to use various hints from the
# contents of the file itself to determine its type.  The MIMEMagicFile
# directive tells the module where the hint definitions are located.
#
#MIMEMagicFile etc/apache22/magic

#
# Customizable error responses come in three flavors:
# 1) plain text 2) local redirects 3) external redirects
#
# Some examples:
#ErrorDocument 500 "The server made a boo boo."
#ErrorDocument 404 /missing.html
#ErrorDocument 404 "/cgi-bin/missing_handler.pl"
#ErrorDocument 402 http://www.example.com/subscription_info.html
#

#
# EnableMMAP and EnableSendfile: On systems that support it, 
# memory-mapping or the sendfile syscall is used to deliver
# files.  This usually improves server performance, but must
# be turned off when serving from networked-mounted 
# filesystems or if support for these functions is otherwise
# broken on your system.
#
#EnableMMAP off
#EnableSendfile off

# Supplemental configuration
#
# The configuration files in the etc/apache22/extra/ directory can be 
# included to add extra features or to modify the default configuration of 
# the server, or you may simply copy their contents here and change as 
# necessary.

# Server-pool management (MPM specific)
#Include etc/apache22/extra/httpd-mpm.conf

# Multi-language error messages
#Include etc/apache22/extra/httpd-multilang-errordoc.conf

# Fancy directory listings
#Include etc/apache22/extra/httpd-autoindex.conf

# Language settings
#Include etc/apache22/extra/httpd-languages.conf

# User home directories
#Include etc/apache22/extra/httpd-userdir.conf

# Real-time info on requests and configuration
#Include etc/apache22/extra/httpd-info.conf

# Virtual hosts
#Include etc/apache22/extra/httpd-vhosts.conf

# Local access to the Apache HTTP Server Manual
#Include etc/apache22/extra/httpd-manual.conf

# Distributed authoring and versioning (WebDAV)
#Include etc/apache22/extra/httpd-dav.conf

# Various default settings
#Include etc/apache22/extra/httpd-default.conf

# Secure (SSL/TLS) connections
#Include etc/apache22/extra/httpd-ssl.conf
#
# Note: The following must must be present to support
#       starting without SSL on platforms with no /dev/random equivalent
#       but a statically compiled-in mod_ssl.
#
<IfModule ssl_module>
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
</IfModule>

# Mod security
{$mod_security}

# Proxysettings
{$mod_proxy}

# Include anything else
Include etc/apache22/Includes/*.conf

EOF;

	$fd = fopen("/usr/local/etc/apache22/httpd.conf", "w");
	if(!$fd) {
		$error_text = "Could not open httpd.conf for writing!";
		echo $error_text;
		log_error($error_text);
		exit;
	}
	fwrite($fd, $apache_config);
	fclose($fd);
}

?>