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-rw-r--r--system/core/Utf8.php33
-rw-r--r--system/libraries/Email.php6
-rw-r--r--system/libraries/Trackback.php9
3 files changed, 38 insertions, 10 deletions
diff --git a/system/core/Utf8.php b/system/core/Utf8.php
index ff3e49139..b58c611e1 100644
--- a/system/core/Utf8.php
+++ b/system/core/Utf8.php
@@ -59,17 +59,31 @@ class CI_Utf8 {
{
define('MB_ENABLED', TRUE);
mb_internal_encoding($charset);
+ // This is required for mb_convert_encoding() to strip invalid characters
+ ini_set('mbstring.substitute_character', 'none');
}
else
{
define('MB_ENABLED', FALSE);
}
+ // Do the same for iconv, which actually has more easy to remember
+ // predefined constants (such as ICONV_IMPL), but the iconv PHP
+ // manual page says that using them is "strongly discouraged".
+ if (extension_loaded('iconv'))
+ {
+ define('ICONV_ENABLED', TRUE);
+ iconv_set_encoding('internal_encoding', $charset);
+ }
+ else
+ {
+ define('ICONV_ENABLED', FALSE);
+ }
+
if (
- defined('PREG_BAD_UTF8_ERROR') // PCRE must support UTF-8
- && function_exists('iconv') // iconv must be installed
- && MB_ENABLED === TRUE // mbstring must be enabled
- && $charset === 'UTF-8' // Application charset must be UTF-8
+ defined('PREG_BAD_UTF8_ERROR') // PCRE must support UTF-8
+ && (ICONV_ENABLED === TRUE OR MB_ENABLED === TRUE) // iconv or mbstring must be installed
+ && $charset === 'UTF-8' // Application charset must be UTF-8
)
{
define('UTF8_ENABLED', TRUE);
@@ -98,7 +112,14 @@ class CI_Utf8 {
{
if ($this->_is_ascii($str) === FALSE)
{
- $str = @iconv('UTF-8', 'UTF-8//IGNORE', $str);
+ if (ICONV_ENABLED)
+ {
+ $str = @iconv('UTF-8', 'UTF-8//IGNORE', $str);
+ }
+ elseif (MB_ENABLED)
+ {
+ $str = mb_convert_encoding($str, 'UTF-8', 'UTF-8');
+ }
}
return $str;
@@ -134,7 +155,7 @@ class CI_Utf8 {
*/
public function convert_to_utf8($str, $encoding)
{
- if (function_exists('iconv'))
+ if (ICONV_ENABLED)
{
return @iconv($encoding, 'UTF-8', $str);
}
diff --git a/system/libraries/Email.php b/system/libraries/Email.php
index 7d13a4645..93c19de5e 100644
--- a/system/libraries/Email.php
+++ b/system/libraries/Email.php
@@ -1544,7 +1544,7 @@ class CI_Email {
{
return mb_encode_mimeheader($str, $this->charset, 'Q', $this->crlf);
}
- elseif (extension_loaded('iconv'))
+ elseif (ICONV_ENABLED === TRUE)
{
$output = @iconv_mime_encode('', $str,
array(
@@ -1573,9 +1573,9 @@ class CI_Email {
isset($chars) OR $chars = strlen($str);
$output = '=?'.$this->charset.'?Q?';
- for ($i = 0, $length = strlen($output), $iconv = extension_loaded('iconv'); $i < $chars; $i++)
+ for ($i = 0, $length = strlen($output); $i < $chars; $i++)
{
- $chr = ($this->charset === 'UTF-8' && $iconv === TRUE)
+ $chr = ($this->charset === 'UTF-8' && ICONV_ENABLED === TRUE)
? '='.implode('=', str_split(strtoupper(bin2hex(iconv_substr($str, $i, 1, $this->charset))), 2))
: '='.strtoupper(bin2hex($str[$i]));
diff --git a/system/libraries/Trackback.php b/system/libraries/Trackback.php
index 7bcb2aa21..9fa4a8edb 100644
--- a/system/libraries/Trackback.php
+++ b/system/libraries/Trackback.php
@@ -181,7 +181,14 @@ class CI_Trackback {
if ($val !== 'url' && MB_ENABLED === TRUE)
{
- $_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']);
+ if (MB_ENABLED === TRUE)
+ {
+ $_POST[$val] = mb_convert_encoding($_POST[$val], $this->charset, $this->data['charset']);
+ }
+ elseif (ICONV_ENABLED === TRUE)
+ {
+ $_POST[$val] = @iconv($this->data['charset'], $this->charset.'//IGNORE', $_POST[$val]);
+ }
}
$_POST[$val] = ($val !== 'url') ? $this->convert_xml(strip_tags($_POST[$val])) : strip_tags($_POST[$val]);