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-rw-r--r--system/core/Common.php19
-rw-r--r--system/core/Config.php2
-rw-r--r--system/core/Input.php143
-rw-r--r--system/core/Loader.php6
-rw-r--r--system/core/Output.php4
5 files changed, 110 insertions, 64 deletions
diff --git a/system/core/Common.php b/system/core/Common.php
index 57374b07d..981af4559 100644
--- a/system/core/Common.php
+++ b/system/core/Common.php
@@ -488,13 +488,9 @@ if ( ! function_exists('set_status_header'))
{
header('Status: '.$code.' '.$text, TRUE);
}
- elseif ($server_protocol === 'HTTP/1.0')
- {
- header('HTTP/1.0 '.$code.' '.$text, TRUE, $code);
- }
else
{
- header('HTTP/1.1 '.$code.' '.$text, TRUE, $code);
+ header(($server_protocol ? $server_protocol : 'HTTP/1.1').' '.$code.' '.$text, TRUE, $code);
}
}
}
@@ -524,18 +520,17 @@ if ( ! function_exists('_exception_handler'))
{
$_error =& load_class('Exceptions', 'core');
- // Should we display the error? We'll get the current error_reporting
+ // Should we ignore the error? We'll get the current error_reporting
// level and add its bits with the severity bits to find out.
- // And respect display_errors
- if (($severity & error_reporting()) === $severity && (bool) ini_get('display_errors') === TRUE)
+ if (($severity & error_reporting()) !== $severity)
{
- $_error->show_php_error($severity, $message, $filepath, $line);
+ return;
}
- // Should we log the error? No? We're done...
- if (config_item('log_threshold') === 0)
+ // Should we display the error?
+ if ((bool) ini_get('display_errors') === TRUE)
{
- return;
+ $_error->show_php_error($severity, $message, $filepath, $line);
}
$_error->log_exception($severity, $message, $filepath, $line);
diff --git a/system/core/Config.php b/system/core/Config.php
index 2f6a9e085..8e4f998ef 100644
--- a/system/core/Config.php
+++ b/system/core/Config.php
@@ -102,7 +102,7 @@ class CI_Config {
{
$file = ($file === '') ? 'config' : str_replace('.php', '', $file);
$found = $loaded = FALSE;
-
+
$check_locations = defined('ENVIRONMENT')
? array(ENVIRONMENT.'/'.$file, $file)
: array($file);
diff --git a/system/core/Input.php b/system/core/Input.php
index 968a42a9a..82482f2aa 100644
--- a/system/core/Input.php
+++ b/system/core/Input.php
@@ -328,62 +328,113 @@ class CI_Input {
return $this->ip_address;
}
- if (config_item('proxy_ips') != '' && $this->server('HTTP_X_FORWARDED_FOR') && $this->server('REMOTE_ADDR'))
+ $proxy_ips = config_item('proxy_ips');
+ if ( ! empty($proxy_ips) && ! is_array($proxy_ips))
{
- $has_ranges = strpos($proxies, '/') !== false;
- $proxies = preg_split('/[\s,]/', config_item('proxy_ips'), -1, PREG_SPLIT_NO_EMPTY);
- $proxies = is_array($proxies) ? $proxies : array($proxies);
-
- if ($has_ranges)
- {
- $long_ip = ip2long($_SERVER['REMOTE_ADDR']);
- $bit_32 = 1 << 32;
+ $proxy_ips = explode(',', str_replace(' ', '', $proxy_ips));
+ }
+
+ $this->ip_address = $this->server('REMOTE_ADDR');
- // Go through each of the IP Addresses to check for and
- // test against range notation
- foreach($proxies as $ip)
+ if ($proxy_ips)
+ {
+ foreach (array('HTTP_X_FORWARDED_FOR', 'HTTP_CLIENT_IP', 'HTTP_X_CLIENT_IP', 'HTTP_X_CLUSTER_CLIENT_IP') as $header)
+ {
+ if (($spoof = $this->server($header)) !== NULL)
{
- list($address, $mask_length) = explode('/', $ip);
+ // Some proxies typically list the whole chain of IP
+ // addresses through which the client has reached us.
+ // e.g. client_ip, proxy_ip1, proxy_ip2, etc.
+ if (strpos($spoof, ',') !== FALSE)
+ {
+ $spoof = explode(',', $spoof, 2);
+ $spoof = $spoof[0];
+ }
- // Generate the bitmask for a 32 bit IP Address
- $bitmask = $bit_32 - (1 << (32 - (int)$mask_length));
- if (($long_ip & $bitmask) == $address)
+ if ( ! $this->valid_ip($spoof))
+ {
+ $spoof = NULL;
+ }
+ else
{
- $this->ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];
break;
}
}
-
- } else {
- $this->ip_address = in_array($_SERVER['REMOTE_ADDR'], $proxies) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : $_SERVER['REMOTE_ADDR'];
}
- }
- elseif ( ! $this->server('HTTP_CLIENT_IP') && $this->server('REMOTE_ADDR'))
- {
- $this->ip_address = $_SERVER['REMOTE_ADDR'];
- }
- elseif ($this->server('REMOTE_ADDR') && $this->server('HTTP_CLIENT_IP'))
- {
- $this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
- }
- elseif ($this->server('HTTP_CLIENT_IP'))
- {
- $this->ip_address = $_SERVER['HTTP_CLIENT_IP'];
- }
- elseif ($this->server('HTTP_X_FORWARDED_FOR'))
- {
- $this->ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];
- }
- if ($this->ip_address === FALSE)
- {
- return $this->ip_address = '0.0.0.0';
- }
+ if ($spoof)
+ {
+ for ($i = 0, $c = count($proxy_ips); $i < $c; $i++)
+ {
+ // Check if we have an IP address or a subnet
+ if (strpos($proxy_ips[$i], '/') === FALSE)
+ {
+ // An IP address (and not a subnet) is specified.
+ // We can compare right away.
+ if ($proxy_ips[$i] === $this->ip_address)
+ {
+ $this->ip_address = $spoof;
+ break;
+ }
+
+ continue;
+ }
- if (strpos($this->ip_address, ',') !== FALSE)
- {
- $x = explode(',', $this->ip_address);
- $this->ip_address = trim(end($x));
+ // We have a subnet ... now the heavy lifting begins
+ isset($separator) OR $separator = $this->valid_ip($this->ip_address, 'ipv6') ? ':' : '.';
+
+ // If the proxy entry doesn't match the IP protocol - skip it
+ if (strpos($proxy_ips[$i], $separator) === FALSE)
+ {
+ continue;
+ }
+
+ // Convert the REMOTE_ADDR IP address to binary, if needed
+ if ( ! isset($ip, $convert_func))
+ {
+ if ($separator === ':')
+ {
+ // Make sure we're have the "full" IPv6 format
+ $ip = str_replace('::', str_repeat(':', 9 - substr_count($this->ip_address, ':')), $this->ip_address);
+ $convert_func = is_php('5.3')
+ ? function ($value)
+ {
+ return str_pad(base_convert($value, 16, 2), 16, '0', STR_PAD_LEFT);
+ }
+ : create_function('$value', 'return str_pad(base_convert($value, 16, 2), 16, "0", STR_PAD_LEFT);');
+ }
+ else
+ {
+ $ip = $this->ip_address;
+ $convert_func = is_php('5.3')
+ ? function ($value)
+ {
+ return str_pad(decbin($value), 8, '0', STR_PAD_LEFT);
+ }
+ : create_function('$value', 'return str_pad(decbin($value), 8, "0", STR_PAD_LEFT);');
+ }
+
+ $ip = implode(array_map($convert_func, explode($separator, $ip)));
+ }
+
+ // Split the netmask length off the network address
+ list($netaddr, $masklen) = explode('/', $proxy_ips[$i], 2);
+
+ // Again, an IPv6 address is most likely in a compressed form
+ if ($separator === ':')
+ {
+ $netaddr = str_replace('::', str_repeat(':', 9 - substr_count($netaddr, ':')), $netaddr);
+ }
+
+ // Convert to a binary form and finally compare
+ $netaddr = implode(array_map($convert_func, explode($separator, $netaddr)));
+ if (strncmp($ip, $netaddr, $masklen) === 0)
+ {
+ $this->ip_address = $spoof;
+ break;
+ }
+ }
+ }
}
if ( ! $this->valid_ip($this->ip_address))
@@ -541,7 +592,7 @@ class CI_Input {
$_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']);
// CSRF Protection check
- if ($this->_enable_csrf === TRUE)
+ if ($this->_enable_csrf === TRUE && ! $this->is_cli_request())
{
$this->security->csrf_verify();
}
diff --git a/system/core/Loader.php b/system/core/Loader.php
index 242b19069..ed830e2dd 100644
--- a/system/core/Loader.php
+++ b/system/core/Loader.php
@@ -779,11 +779,11 @@ class CI_Loader {
$_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION);
$_ci_file = ($_ci_ext === '') ? $_ci_view.'.php' : $_ci_view;
- foreach ($this->_ci_view_paths as $view_file => $cascade)
+ foreach ($this->_ci_view_paths as $_ci_view_file => $cascade)
{
- if (file_exists($view_file.$_ci_file))
+ if (file_exists($_ci_view_file.$_ci_file))
{
- $_ci_path = $view_file.$_ci_file;
+ $_ci_path = $_ci_view_file.$_ci_file;
$file_exists = TRUE;
break;
}
diff --git a/system/core/Output.php b/system/core/Output.php
index 9842f834d..052367ed6 100644
--- a/system/core/Output.php
+++ b/system/core/Output.php
@@ -552,13 +552,13 @@ class CI_Output {
fclose($fp);
// Strip out the embedded timestamp
- if ( ! preg_match('/\d+TS--->/', $cache, $match))
+ if ( ! preg_match('/^(\d+)TS--->/', $cache, $match))
{
return FALSE;
}
$last_modified = filemtime($cache_path);
- $expire = str_replace('TS--->', '', $match[0]);
+ $expire = $match[1];
// Has the file expired?
if ($_SERVER['REQUEST_TIME'] >= $expire && is_really_writable($cache_path))
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-07-05 14:16:58 +0200