$val) {
$enc_args[] = urlencode($key) . '=' . urlencode($val);
}
$args = join('&', $enc_args);
}
if (USE_PATH_INFO) {
$url = $get_abs_url ? SERVER_URL . VIRTUAL_PATH . "/" : '';
$url .= rawurlencode($pagename);
if ($args)
$url .= "?$args";
}
else {
$url = $get_abs_url ? SERVER_URL . SCRIPT_NAME : basename(SCRIPT_NAME);
$url .= "?pagename=" . rawurlencode($pagename);
if ($args)
$url .= "&$args";
}
return $url;
}
function StartTag($tag, $args = '')
{
$s = "<$tag";
if (is_array($args))
{
while (list($key, $val) = each($args))
{
if (is_string($val) || is_numeric($val))
$s .= sprintf(' %s="%s"', $key, htmlspecialchars($val));
else if ($val)
$s .= " $key";
}
}
return "$s>";
}
define('NO_END_TAG_PAT',
'/^' . join('|', array('area', 'base', 'basefont',
'br', 'col', 'frame',
'hr', 'image', 'input',
'isindex', 'link', 'meta',
'param')) . '$/i');
function Element($tag, $args = '', $content = '')
{
$html = "<$tag";
if (!is_array($args))
{
$content = $args;
$args = false;
}
$html = StartTag($tag, $args);
if (!preg_match(NO_END_TAG_PAT, $tag))
{
$html .= $content;
$html .= "";//FIXME: newline might not always be desired.
}
return $html;
}
function QElement($tag, $args = '', $content = '')
{
if (is_array($args))
return Element($tag, $args, htmlspecialchars($content));
else
{
$content = $args;
return Element($tag, htmlspecialchars($content));
}
}
function LinkURL($url, $linktext='') {
// FIXME: Is this needed (or sufficient?)
if(ereg("[<>\"]", $url)) {
return "BAD URL -- remove all of <, >, "";
}
if (empty($linktext)) {
$linktext = $url;
$class = 'rawurl';
}
else {
$class = 'namedurl';
}
return QElement('a',
array('href' => $url, 'class' => $class),
$linktext);
}
function LinkWikiWord($wikiword, $linktext='') {
global $dbi;
if ($dbi->isWikiPage($wikiword))
return LinkExistingWikiWord($wikiword, $linktext);
else
return LinkUnknownWikiWord($wikiword, $linktext);
}
function LinkExistingWikiWord($wikiword, $linktext='') {
if (empty($linktext)) {
$linktext = $wikiword;
$class = 'wiki';
}
else
$class = 'named-wiki';
return QElement('a', array('href' => WikiURL($wikiword),
'class' => $class),
$linktext);
}
function LinkUnknownWikiWord($wikiword, $linktext='') {
if (empty($linktext)) {
$linktext = $wikiword;
$class = 'wikiunknown';
}
else {
$class = 'named-wikiunknown';
}
return Element('span', array('class' => $class),
QElement('a',
array('href' => WikiURL($wikiword, array('action' => 'edit'))),
'?')
. Element('u', $linktext));
}
function LinkImage($url, $alt='[External Image]') {
// FIXME: Is this needed (or sufficient?)
// As long as the src in htmlspecialchars()ed I think it's safe.
if(ereg('[<>"]', $url)) {
return "BAD URL -- remove all of <, >, "";
}
return Element('img', array('src' => $url, 'alt' => $alt));
}
// converts spaces to tabs
function CookSpaces($pagearray) {
return preg_replace("/ {3,8}/", "\t", $pagearray);
}
class Stack {
var $items = array();
var $size = 0;
function push($item) {
$this->items[$this->size] = $item;
$this->size++;
return true;
}
function pop() {
if ($this->size == 0) {
return false; // stack is empty
}
$this->size--;
return $this->items[$this->size];
}
function cnt() {
return $this->size;
}
function top() {
if($this->size)
return $this->items[$this->size - 1];
else
return '';
}
}
// end class definition
function MakeWikiForm ($pagename, $args, $class, $button_text = '')
{
$formargs['action'] = USE_PATH_INFO ? WikiURL($pagename) : SCRIPT_NAME;
$formargs['method'] = 'get';
$formargs['class'] = $class;
$contents = '';
$input_seen = 0;
while (list($key, $val) = each($args))
{
$a = array('name' => $key, 'value' => $val, 'type' => 'hidden');
if (preg_match('/^ (\d*) \( (.*) \) ((upload)?) $/xi', $val, $m))
{
$input_seen++;
$a['type'] = 'text';
$a['size'] = $m[1] ? $m[1] : 30;
$a['value'] = $m[2];
if ($m[3])
{
$a['type'] = 'file';
$formargs['enctype'] = 'multipart/form-data';
$contents .= Element('input',
array('name' => 'MAX_FILE_SIZE',
'value' => MAX_UPLOAD_SIZE,
'type' => 'hidden'));
$formargs['method'] = 'post';
}
}
$contents .= Element('input', $a);
}
$row = Element('td', $contents);
if (!empty($button_text)) {
$row .= Element('td', Element('input', array('type' => 'submit',
'class' => 'button',
'value' => $button_text)));
}
return Element('form', $formargs,
Element('table', array('cellspacing' => 0, 'cellpadding' => 2, 'border' => 0),
Element('tr', $row)));
}
function SplitQueryArgs ($query_args = '')
{
$split_args = split('&', $query_args);
$args = array();
while (list($key, $val) = each($split_args))
if (preg_match('/^ ([^=]+) =? (.*) /x', $val, $m))
$args[$m[1]] = $m[2];
return $args;
}
function LinkPhpwikiURL($url, $text = '') {
$args = array();
if (!preg_match('/^ phpwiki: ([^?]*) [?]? (.*) $/x', $url, $m))
return "BAD phpwiki: URL";
if ($m[1])
$pagename = urldecode($m[1]);
$qargs = $m[2];
if (empty($pagename) && preg_match('/^(diff|edit|links|info)=([^&]+)$/', $qargs, $m)) {
// Convert old style links (to not break diff links in RecentChanges).
$pagename = urldecode($m[2]);
$args = array("action" => $m[1]);
}
else {
$args = SplitQueryArgs($qargs);
}
if (empty($pagename))
$pagename = $GLOBALS['pagename'];
if (isset($args['action']) && $args['action'] == 'browse')
unset($args['action']);
/*FIXME:
if (empty($args['action']))
$class = 'wikilink';
else if (is_safe_action($args['action']))
$class = 'wikiaction';
*/
if (empty($args['action']) || is_safe_action($args['action']))
$class = 'wikiaction';
else {
// Don't allow administrative links on unlocked pages.
// FIXME: Ugh: don't like this...
global $dbi;
$page = $dbi->getPage($GLOBALS['pagename']);
if (!$page->get('locked'))
return QElement('u', array('class' => 'wikiunsafe'),
gettext('Lock page to enable link'));
$class = 'wikiadmin';
}
// FIXME: ug, don't like this
if (preg_match('/=\d*\(/', $qargs))
return MakeWikiForm($pagename, $args, $class, $text);
if ($text)
$text = htmlspecialchars($text);
else
$text = QElement('span', array('class' => 'rawurl'), $url);
return Element('a', array('href' => WikiURL($pagename, $args),
'class' => $class),
$text);
}
function ParseAndLink($bracketlink) {
global $dbi, $AllowedProtocols, $InlineImages;
global $InterWikiLinkRegexp;
// $bracketlink will start and end with brackets; in between
// will be either a page name, a URL or both separated by a pipe.
// strip brackets and leading space
preg_match("/(\[\s*)(.+?)(\s*\])/", $bracketlink, $match);
// match the contents
preg_match("/([^|]+)(\|)?([^|]+)?/", $match[2], $matches);
if (isset($matches[3])) {
// named link of the form "[some link name | http://blippy.com/]"
$URL = trim($matches[3]);
$linkname = trim($matches[1]);
$linktype = 'named';
} else {
// unnamed link of the form "[http://blippy.com/] or [wiki page]"
$URL = trim($matches[1]);
$linkname = '';
$linktype = 'simple';
}
if ($dbi->isWikiPage($URL)) {
$link['type'] = "wiki-$linktype";
$link['link'] = LinkExistingWikiWord($URL, $linkname);
} elseif (preg_match("#^($AllowedProtocols):#", $URL)) {
// if it's an image, embed it; otherwise, it's a regular link
if (preg_match("/($InlineImages)$/i", $URL)) {
$link['type'] = "image-$linktype";
$link['link'] = LinkImage($URL, $linkname);
} else {
$link['type'] = "url-$linktype";
$link['link'] = LinkURL($URL, $linkname);
}
} elseif (preg_match("#^phpwiki:(.*)#", $URL, $match)) {
$link['type'] = "url-wiki-$linktype";
$link['link'] = LinkPhpwikiURL($URL, $linkname);
} elseif (preg_match("#^\d+$#", $URL)) {
$link['type'] = "footnote-$linktype";
$link['link'] = $URL;
} elseif (function_exists('LinkInterWikiLink') &&
preg_match("#^$InterWikiLinkRegexp:#", $URL)) {
$link['type'] = "interwiki-$linktype";
$link['link'] = LinkInterWikiLink($URL, $linkname);
} else {
$link['type'] = "wiki-unknown-$linktype";
$link['link'] = LinkUnknownWikiWord($URL, $linkname);
}
return $link;
}
function ExtractWikiPageLinks($content)
{
global $WikiNameRegexp;
if (is_string($content))
$content = explode("\n", $content);
$wikilinks = array();
foreach ($content as $line) {
// remove plugin code
$line = preg_replace('/<\?plugin\s+\w.*?\?>/', '', $line);
// remove escaped '['
$line = str_replace('[[', ' ', $line);
// bracket links (only type wiki-* is of interest)
$numBracketLinks = preg_match_all("/\[\s*([^\]|]+\|)?\s*(.+?)\s*\]/", $line, $brktlinks);
for ($i = 0; $i < $numBracketLinks; $i++) {
$link = ParseAndLink($brktlinks[0][$i]);
if (preg_match("#^wiki#", $link['type']))
$wikilinks[$brktlinks[2][$i]] = 1;
$brktlink = preg_quote($brktlinks[0][$i]);
$line = preg_replace("|$brktlink|", '', $line);
}
// BumpyText old-style wiki links
if (preg_match_all("/!?$WikiNameRegexp/", $line, $link)) {
for ($i = 0; isset($link[0][$i]); $i++) {
if($link[0][$i][0] <> '!')
$wikilinks[$link[0][$i]] = 1;
}
}
}
return array_keys($wikilinks);
}
function LinkRelatedPages($dbi, $pagename)
{
// currently not supported everywhere
if(!function_exists('GetWikiPageLinks'))
return '';
//FIXME: fix or toss?
$links = GetWikiPageLinks($dbi, $pagename);
$txt = "";
$txt .= sprintf (gettext ("%d best incoming links:"), NUM_RELATED_PAGES);
$txt .= "\n";
for($i = 0; $i < NUM_RELATED_PAGES; $i++) {
if(isset($links['in'][$i])) {
list($name, $score) = $links['in'][$i];
$txt .= LinkExistingWikiWord($name) . " ($score), ";
}
}
$txt .= "\n
";
$txt .= sprintf (gettext ("%d best outgoing links:"), NUM_RELATED_PAGES);
$txt .= "\n";
for($i = 0; $i < NUM_RELATED_PAGES; $i++) {
if(isset($links['out'][$i])) {
list($name, $score) = $links['out'][$i];
if($dbi->isWikiPage($name))
$txt .= LinkExistingWikiWord($name) . " ($score), ";
}
}
$txt .= "\n
";
$txt .= sprintf (gettext ("%d most popular nearby:"), NUM_RELATED_PAGES);
$txt .= "\n";
for($i = 0; $i < NUM_RELATED_PAGES; $i++) {
if(isset($links['popular'][$i])) {
list($name, $score) = $links['popular'][$i];
$txt .= LinkExistingWikiWord($name) . " ($score), ";
}
}
return $txt;
}
/**
* Split WikiWords in page names.
*
* It has been deemed useful to split WikiWords (into "Wiki Words")
* in places like page titles. This is rumored to help search engines
* quite a bit.
*
* @param $page string The page name.
*
* @return string The split name.
*/
function split_pagename ($page) {
if (preg_match("/\s/", $page))
return $page; // Already split --- don't split any more.
// FIXME: this algorithm is Anglo-centric.
static $RE;
if (!isset($RE)) {
// This mess splits between a lower-case letter followed by either an upper-case
// or a numeral; except that it wont split the prefixes 'Mc', 'De', or 'Di' off
// of their tails.
$RE[] = '/([[:lower:]])((? $val)
$RE[$key] = pcre_fix_posix_classes($val);
}
foreach ($RE as $regexp)
$page = preg_replace($regexp, '\\1 \\2', $page);
return $page;
}
function NoSuchRevision ($page, $version) {
$html = "" . gettext("Bad Version") . "\n
";
$html .= sprintf(gettext("I'm sorry. Version %d of %s is not in my database."),
$version, htmlspecialchars($page->getName()));
$html .= "\n";
echo GeneratePage('MESSAGE', $html, gettext("Bad Version"));
ExitWiki ("");
}
// (c-file-style: "gnu")
// Local Variables:
// mode: php
// tab-width: 8
// c-basic-offset: 4
// c-hanging-comment-ender-p: nil
// indent-tabs-mode: nil
// End:
?>