diff -r 45e887f23282 -r 7152ca0a0ce9 includes/functions.php
--- a/includes/functions.php Mon Feb 16 16:04:54 2009 -0500
+++ b/includes/functions.php Mon Feb 16 16:17:25 2009 -0500
@@ -206,57 +206,17 @@
function makeUrlComplete($n, $t, $query = false, $escape = false)
{
- global $db, $session, $paths, $template, $plugins; // Common objects
- $flags = '';
-
- if(defined('ENANO_BASE_CLASSES_INITIALIZED'))
- {
- $sep = urlSeparator;
- }
- else
- {
- $sep = (strstr($_SERVER['REQUEST_URI'], '?')) ? '&' : '?';
- }
- if ( isset( $_GET['printable'] ) ) {
- $flags .= $sep . 'printable';
- $sep = '&';
- }
- if ( isset( $_GET['theme'] ) )
- {
- $flags .= $sep . 'theme='.$session->theme;
- $sep = '&';
- }
- if ( isset( $_GET['style'] ) )
- {
- $flags .= $sep . 'style='.$session->style;
- $sep = '&';
- }
- if ( isset($_GET['lang']) && preg_match('/^[a-z0-9_]+$/', @$_GET['lang']) )
- {
- $flags .= $sep . 'lang=' . urlencode($_GET['lang']);
- $sep = '&';
- }
-
- if(defined('ENANO_BASE_CLASSES_INITIALIZED'))
- {
- $url = $session->append_sid(contentPath . $paths->nslist[$n] . $t . $flags);
- }
- else
- {
- // If the path manager hasn't been initted yet, take an educated guess at what the URI should be
- $url = contentPath . $n . ':' . $t . $flags;
- }
- if($query)
- {
- if(strstr($url, '?')) $sep = '&';
- else $sep = '?';
- $url = $url . $sep . $query . $flags;
- }
-
- $baseprot = 'http' . ( isset($_SERVER['HTTPS']) ? 's' : '' ) . '://' . $_SERVER['HTTP_HOST'];
- $url = $baseprot . $url;
-
- return ($escape) ? htmlspecialchars($url) : $url;
+ return get_server_url() . makeUrlNS($n, $t, $query, $escape);
+}
+
+/**
+ * Returns an http:// URL for this server.
+ * @return string
+ */
+
+function get_server_url()
+{
+ return 'http' . ( $GLOBALS['is_https'] ) . '://' . $_SERVER['HTTP_HOST'];
}
/**
@@ -277,7 +237,7 @@
{
$logged_in = true;
}
- return $logged_in && getConfig('main_page_alt_enable', '0') == '1' ? getConfig('main_page_alt', getConfig('main_page')) : getConfig('main_page');
+ return $logged_in && getConfig('main_page_alt_enable', '0') == '1' ? getConfig('main_page_alt', getConfig('main_page', 'Main_Page')) : getConfig('main_page', 'Main_Page');
}
/**
@@ -439,7 +399,7 @@
$ns_prefix = ( isset($paths->nslist[ $namespace ]) ) ? $paths->nslist[ $namespace ] : $namespace . substr($paths->nslist['Special'], -1);
$page_id_key = $ns_prefix . $page_id;
- if ( isset($paths->pages[$page_id_key]) )
+ if ( isPage($page_id_key) )
{
$page_data = $paths->pages[$page_id_key];
}
@@ -1509,69 +1469,51 @@
* @param string $bits the text to compress, should be only 1s and 0s
* @return string
*/
-
+
function compress_bitfield($bits)
{
- $crc32 = crc32($bits);
- $bits .= '0';
- $start_pos = 0;
- $current = substr($bits, 1, 1);
- $last = substr($bits, 0, 1);
- $chunk_size = 1;
- $len = strlen($bits);
- $crc = $len;
- $crcval = 0;
- for ( $i = 1; $i < $len; $i++ )
- {
- $current = substr($bits, $i, 1);
- $last = substr($bits, $i - 1, 1);
- $next = substr($bits, $i + 1, 1);
- // Are we on the last character?
- if($current == $last && $i+1 < $len)
- $chunk_size++;
- else
+ if ( !preg_match('/^[01]+$/', $bits) )
+ return false;
+
+ $current = intval($bits{0});
+ $clen = 0;
+ $out = '';
+ for ( $i = 0; $i < strlen($bits); $i++ )
+ {
+ $cbit = intval($bits{$i});
+ if ( $cbit !== $current || $clen == 127 || $i == strlen($bits) - 1 )
{
- if($i+1 == $len && $current == $next)
+ if ( $i == strlen($bits) - 1 && $cbit === $current )
{
- // This character completes a chunk
- $chunk_size++;
- $i++;
- $chunk = substr($bits, $start_pos, $chunk_size);
- $chunklen = strlen($chunk);
- $newchunk = $last . '[' . $chunklen . ']';
- $newlen = strlen($newchunk);
- $bits = substr($bits, 0, $start_pos) . $newchunk . substr($bits, $i, $len);
- $chunk_size = 1;
- $i = $start_pos + $newlen;
- $start_pos = $i;
- $len = strlen($bits);
- $crcval = $crcval + $chunklen;
+ $clen++;
}
- else
+ // write chunk
+ $byte = $clen;
+ if ( $current === 1 )
+ $byte |= 0x80;
+ $out .= chr($byte);
+
+ if ( $i == strlen($bits) - 1 && $cbit !== $current )
{
- // Last character completed a chunk
- $chunk = substr($bits, $start_pos, $chunk_size);
- $chunklen = strlen($chunk);
- $newchunk = $last . '[' . $chunklen . '],';
- $newlen = strlen($newchunk);
- $bits = substr($bits, 0, $start_pos) . $newchunk . substr($bits, $i, $len);
- $chunk_size = 1;
- $i = $start_pos + $newlen;
- $start_pos = $i;
- $len = strlen($bits);
- $crcval = $crcval + $chunklen;
+ $out .= ( $cbit === 1 ) ? chr(0x81) : chr(0x1);
}
+
+ // reset
+ $current = intval($cbit);
+ $clen = 0;
}
- }
- if($crc != $crcval)
- {
- echo __FUNCTION__.'(): ERROR: length check failed, this is a bug in the algorithm
Debug info: aiming for a CRC val of '.$crc.', got '.$crcval;
- return false;
- }
- $compressed = 'cbf:len='.$crc.';crc='.dechex($crc32).';data='.$bits.'|end';
- return $compressed;
+ $clen++;
+ }
+ $crc = dechex(crc32($out));
+ while ( strlen($crc) < 8 )
+ $crc = "0$crc";
+ return "cbf2:{$crc}" . hexencode($out, '', '');
}
+// test case
+// $bf = '0111100010000000000000000000000100000000000000001110000000000000000101100000010100001100010000000000000000000000000000111111111111111111111100100001000000000000000000000000000000000000';
+// die('Original: ' . " $bf\nCompressed: " . compress_bitfield($bf) . "\nProcessed: ".uncompress_bitfield(compress_bitfield($bf)).'
');
+
/**
* Uncompresses a bitfield compressed with compress_bitfield()
* @param string $bits the compressed bitfield
@@ -1580,6 +1522,47 @@
function uncompress_bitfield($bits)
{
+ if ( substr($bits, 0, 4) == 'cbf:' )
+ {
+ return uncompress_bitfield_old($bits);
+ }
+ if ( substr($bits, 0, 5) != 'cbf2:' )
+ {
+ echo __FUNCTION__.'(): ERROR: Invalid stream';
+ return false;
+ }
+ $bits = substr($bits, 5);
+ $crc = substr($bits, 0, 8);
+ $bits = substr($bits, 8);
+ $bits = hexdecode($bits);
+ if ( dechex(crc32($bits)) !== $crc )
+ {
+ echo __FUNCTION__."(): ERROR: CRC failed";
+ return false;
+ }
+ $out = '';
+ for ( $i = 0; $i < strlen($bits); $i++ )
+ {
+ $byte = ord($bits{$i});
+ $char = $byte & 0x80 ? '1' : '0';
+ $byte &= ~0x80;
+ for ( $j = 0; $j < $byte; $j++ )
+ {
+ $out .= $char;
+ }
+ }
+ return $out;
+}
+
+/**
+ * Decompressor for old-format bitfields.
+ * @param string
+ * @return string
+ * @access private
+ */
+
+function uncompress_bitfield_old($bits)
+{
if(substr($bits, 0, 4) != 'cbf:')
{
echo __FUNCTION__.'(): ERROR: Invalid stream';
@@ -4640,7 +4623,7 @@
// eliminate comments
$json = preg_replace(array(
// eliminate single line comments in '// ...' form
- '#^\s*//(.+)$#m',
+ '#^\s*//(.*)$#m',
// eliminate multi-line comments in '/* ... */' form, at start of string
'#^\s*/\*(.+)\*/#Us',
// eliminate multi-line comments in '/* ... */' form, at end of string
@@ -5011,6 +4994,4 @@
return false;
}
-//die('Original: 01010101010100101010100101010101011010'."\nProcessed: ".uncompress_bitfield(compress_bitfield('01010101010100101010100101010101011010')).'');
-
?>