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<?php
/**
* Import data from a UseModWiki into a MediaWiki wiki
* 2003-02-09 Brion VIBBER <brion@pobox.com>
* Based loosely on Magnus's code from 2001-2002
*
* Updated limited version to get something working temporarily
* 2003-10-09
* Be sure to run the link & index rebuilding scripts!
*
* Some more munging for charsets etc
* 2003-11-28
*
* Partial fix for pages starting with lowercase letters (??)
* and CamelCase and /Subpage link conversion
* 2004-11-17
*
* Rewrite output to create Special:Export format for import
* instead of raw SQL. Should be 'future-proof' against future
* schema changes.
* 2005-03-14
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @todo document
* @file
* @ingroup Maintenance
*/
require_once( "Maintenance.php" );
class ImportUseModWiki extends Maintenance {
private $encoding, $rootDirectory = '';
/**
* Field separators
* @var String
*/
private $FS1, $FS2, $FS3 = '';
/**
* @var Array
*/
private $usercache, $nowiki = array();
public function __construct() {
parent::__construct();
$this->mDescription = "Import pages from UseMod wikis";
$this->addOption( 'encoding', 'Encoding of the imported text, default CP1252', false, true );
/**
* If UseModWiki's New File System is used:
* $NewFS = 1; # 1 = new multibyte $FS, 0 = old $FS
* Use "\xb3"; for the Old File System
* Changed with UTF-8 UseModWiki
* http://www.usemod.com/cgi-bin/wiki.pl?SupportForUtf8
* http://www.usemod.com/cgi-bin/wiki.pl?WikiBugs/NewFieldSeparatorWronglyTreated
* http://www.meatballwiki.org/wiki/WikiEngine#Q_amp_A
*/
$this->addOption( 'separator', 'Field separator to use, default \x1E\xFF\xFE\x1E', false, true );
$this->addArg( 'path', 'Path to your UseMod wiki' );
}
public function execute() {
$this->rootDirectory = $this->getArg();
$this->encoding = $this->getOption( 'encoding', 'CP1252' );
$sep = $this->getOption( 'separator', "\x1E\xFF\xFE\x1E" );
$this->FS1 = "{$sep}1";
$this->FS2 = "{$sep}2";
$this->FS3 = "{$sep}3";
echo <<<XML
<?xml version="1.0" encoding="UTF-8" ?>
<mediawiki xmlns="http://www.mediawiki.org/xml/export-0.1/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.mediawiki.org/xml/export-0.1/
http://www.mediawiki.org/xml/export-0.1.xsd"
version="0.1"
xml:lang="en">
<!-- generated by importUseModWiki.php -->
XML;
$letters = array(
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I',
'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R',
'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'other' );
foreach ( $letters as $letter ) {
$dir = "{$this->rootDirectory}/page/$letter";
if ( is_dir( $dir ) )
$this->importPageDirectory( $dir );
}
echo <<<XML
</mediawiki>
XML;
}
private function importPageDirectory( $dir, $prefix = "" ) {
echo "\n<!-- Checking page directory " . $this->xmlCommentSafe( $dir ) . " -->\n";
$mydir = opendir( $dir );
while ( $entry = readdir( $mydir ) ) {
$m = array();
if ( preg_match( '/^(.+)\.db$/', $entry, $m ) ) {
echo $this->importPage( $prefix . $m[1] );
} else {
if ( is_dir( "$dir/$entry" ) ) {
if ( $entry != '.' && $entry != '..' ) {
$this->importPageDirectory( "$dir/$entry", "$entry/" );
}
} else {
echo "<!-- File '" . $this->xmlCommentSafe( $entry ) . "' doesn't seem to contain an article. Skipping. -->\n";
}
}
}
}
private function useModFilename( $title ) {
$c = substr( $title, 0, 1 );
if ( preg_match( '/[A-Z]/i', $c ) ) {
return strtoupper( $c ) . "/$title";
}
return "other/$title";
}
private function fetchPage( $title ) {
$fname = $this->rootDirectory . "/page/" . $this->useModFilename( $title ) . ".db";
if ( !file_exists( $fname ) ) {
echo "Couldn't open file '$fname' for page '$title'.\n";
die( -1 );
}
$page = $this->splitHash( $this->FS1, file_get_contents( $fname ) );
$section = $this->splitHash( $this->FS2, $page["text_default"] );
$text = $this->splitHash( $this->FS3, $section["data"] );
return $this->array2object( array( "text" => $text["text"] , "summary" => $text["summary"] ,
"minor" => $text["minor"] , "ts" => $section["ts"] ,
"username" => $section["username"] , "host" => $section["host"] ) );
}
private function fetchKeptPages( $title ) {
$fname = $this->rootDirectory . "/keep/" . $this->useModFilename( $title ) . ".kp";
if ( !file_exists( $fname ) ) return array();
$keptlist = explode( $this->FS1, file_get_contents( $fname ) );
array_shift( $keptlist ); # Drop the junk at beginning of file
$revisions = array();
foreach ( $keptlist as $rev ) {
$section = $this->splitHash( $this->FS2, $rev );
$text = $this->splitHash( $this->FS3, $section["data"] );
if ( $text["text"] && $text["minor"] != "" && ( $section["ts"] * 1 > 0 ) ) {
array_push( $revisions, $this->array2object( array ( "text" => $text["text"] , "summary" => $text["summary"] ,
"minor" => $text["minor"] , "ts" => $section["ts"] ,
"username" => $section["username"] , "host" => $section["host"] ) ) );
} else {
echo "<!-- skipped a bad old revision -->\n";
}
}
return $revisions;
}
private function splitHash( $sep , $str ) {
$temp = explode ( $sep , $str ) ;
$ret = array () ;
for ( $i = 0; $i + 1 < count ( $temp ) ; $i++ ) {
$ret[$temp[$i]] = $temp[++$i] ;
}
return $ret ;
}
private function checkUserCache( $name, $host ) {
if ( $name ) {
if ( in_array( $name, $this->usercache ) ) {
$userid = $this->usercache[$name];
} else {
# If we haven't imported user accounts
$userid = 0;
}
$username = str_replace( '_', ' ', $name );
} else {
$userid = 0;
$username = $host;
}
return array( $userid, $username );
}
private function importPage( $title ) {
echo "\n<!-- Importing page " . $this->xmlCommentSafe( $title ) . " -->\n";
$page = $this->fetchPage( $title );
$newtitle = $this->xmlsafe( str_replace( '_', ' ', $this->recodeText( $title ) ) );
$munged = $this->mungeFormat( $page->text );
if ( $munged != $page->text ) {
/**
* Save a *new* revision with the conversion, and put the
* previous last version into the history.
*/
$next = $this->array2object( array(
'text' => $munged,
'minor' => 1,
'username' => 'Conversion script',
'host' => '127.0.0.1',
'ts' => time(),
'summary' => 'link fix',
) );
$revisions = array( $page, $next );
} else {
/**
* Current revision:
*/
$revisions = array( $page );
}
$xml = <<<XML
<page>
<title>$newtitle</title>
XML;
# History
$revisions = array_merge( $revisions, $this->fetchKeptPages( $title ) );
if ( count( $revisions ) == 0 ) {
return NULL; // Was "$sql", which does not appear to be defined.
}
foreach ( $revisions as $rev ) {
$text = $this->xmlsafe( $this->recodeText( $rev->text ) );
$minor = ( $rev->minor ? '<minor/>' : '' );
list( /* $userid */ , $username ) = $this->checkUserCache( $rev->username, $rev->host );
$username = $this->xmlsafe( $this->recodeText( $username ) );
$timestamp = $this->xmlsafe( $this->timestamp2ISO8601( $rev->ts ) );
$comment = $this->xmlsafe( $this->recodeText( $rev->summary ) );
$xml .= <<<XML
<revision>
<timestamp>$timestamp</timestamp>
<contributor><username>$username</username></contributor>
$minor
<comment>$comment</comment>
<text>$text</text>
</revision>
XML;
}
$xml .= "</page>\n\n";
return $xml;
}
private function recodeText( $string ) {
# For currently latin-1 wikis
$string = str_replace( "\r\n", "\n", $string );
$string = @iconv( $this->encoding, "UTF-8", $string );
$string = $this->mungeToUtf8( $string ); # Any old Ӓ stuff
return $string;
}
/**
* @todo FIXME: Don't use /e
*/
private function mungeToUtf8( $string ) {
$string = preg_replace ( '/&#([0-9]+);/e', 'wfUtf8Sequence($1)', $string );
$string = preg_replace ( '/&#x([0-9a-f]+);/ie', 'wfUtf8Sequence(0x$1)', $string );
# Should also do named entities here
return $string;
}
private function timestamp2ISO8601( $ts ) {
# 2003-08-05T18:30:02Z
return gmdate( 'Y-m-d', $ts ) . 'T' . gmdate( 'H:i:s', $ts ) . 'Z';
}
/**
* The page may contain old data which has not been properly normalized.
* Invalid UTF-8 sequences or forbidden control characters will make our
* XML output invalid, so be sure to strip them out.
* @param String $string Text to clean up
* @return String
*/
private function xmlsafe( $string ) {
$string = UtfNormal::cleanUp( $string );
$string = htmlspecialchars( $string );
return $string;
}
private function xmlCommentSafe( $text ) {
return str_replace( '--', '\\-\\-', $this->xmlsafe( $this->recodeText( $text ) ) );
}
private function array2object( $arr ) {
$o = (object)0;
foreach ( $arr as $x => $y ) {
$o->$x = $y;
}
return $o;
}
/**
* Make CamelCase and /Talk links work
*/
private function mungeFormat( $text ) {
$this->nowiki = array();
$staged = preg_replace_callback(
'/(<nowiki>.*?<\\/nowiki>|(?:http|https|ftp):\\S+|\[\[[^]\\n]+]])/s',
array( $this, 'nowikiPlaceholder' ), $text );
# This is probably not 100% correct, I'm just
# glancing at the UseModWiki code.
$upper = "[A-Z]";
$lower = "[a-z_0-9]";
$any = "[A-Za-z_0-9]";
$camel = "(?:$upper+$lower+$upper+$any*)";
$subpage = "(?:\\/$any+)";
$substart = "(?:\\/$upper$any*)";
$munged = preg_replace( "/(?!\\[\\[)($camel$subpage*|$substart$subpage*)\\b(?!\\]\\]|>)/",
'[[$1]]', $staged );
$final = preg_replace( '/' . preg_quote( $this->placeholder() ) . '/s',
array( $this, 'nowikiShift' ), $munged );
return $final;
}
private function placeholder( $x = null ) {
return '\xffplaceholder\xff';
}
public function nowikiPlaceholder( $matches ) {
$this->nowiki[] = $matches[1];
return $this->placeholder();
}
public function nowikiShift() {
return array_shift( $this->nowiki );
}
}
function wfUtf8Sequence( $codepoint ) {
if ( $codepoint < 0x80 ) {
return chr( $codepoint );
}
if ( $codepoint < 0x800 ) {
return chr( $codepoint >> 6 & 0x3f | 0xc0 ) .
chr( $codepoint & 0x3f | 0x80 );
}
if ( $codepoint < 0x10000 ) {
return chr( $codepoint >> 12 & 0x0f | 0xe0 ) .
chr( $codepoint >> 6 & 0x3f | 0x80 ) .
chr( $codepoint & 0x3f | 0x80 );
}
if ( $codepoint < 0x100000 ) {
return chr( $codepoint >> 18 & 0x07 | 0xf0 ) . # Double-check this
chr( $codepoint >> 12 & 0x3f | 0x80 ) .
chr( $codepoint >> 6 & 0x3f | 0x80 ) .
chr( $codepoint & 0x3f | 0x80 );
}
# Doesn't yet handle outside the BMP
return "&#$codepoint;";
}
$maintClass = 'ImportUseModWiki';
require_once( RUN_MAINTENANCE_IF_MAIN );