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<?php | ||
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# this is the "stupid diff", which shows up changes between two | ||
# saved versions of a WikiPage; even if working very unclean it | ||
# allows to see what has changed | ||
# it is accessible through the "info about page" action | ||
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$ewiki_plugins["action"]["diff"] = "ewiki_page_stupid_diff"; | ||
$ewiki_config["action_links"]["info"]["diff"] = "diff"; | ||
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function ewiki_page_stupid_diff($id, $data, $action) { | ||
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if ($uu=$GLOBALS["ewiki_diff_versions"]) { | ||
list($new_ver, $old_ver) = $uu; | ||
$data = ewiki_database("GET", array("id" => $id, "version" => $new_ver)); | ||
} | ||
else { | ||
$new_ver = $data["version"]; | ||
$old_ver = $new_ver - 1; | ||
} | ||
if ($old_ver > 0) { | ||
$data0 = ewiki_database("GET", array("id" => $id, "version" => $old_ver)); | ||
} | ||
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$o = ewiki_make_title($id, "Differences between version $new_ver and $old_ver of »{$id}«"); | ||
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$txt0 = preg_split("/\s*\n/", trim($data0["content"])); | ||
$txt2 = preg_split("/\s*\n/", trim($data["content"])); | ||
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$diff0 = array_diff($txt0, $txt2); | ||
$diff2 = array_diff($txt2, $txt0); | ||
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foreach ($txt2 as $i => $line) { | ||
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$line = htmlentities($line); | ||
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$i2 = $i; | ||
while ($rm = $diff0[$i2++]) { | ||
$o .= "<b>-</b><font color=\"#990000\"> <tt>$rm</tt></font><br>\n"; | ||
unset($diff0[$i2-1]); | ||
} | ||
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if (in_array($line, $diff2)) { | ||
$o .= "<b>+</b><font color=\"#009900\"> <tt>$line</tt></font><br>\n"; | ||
} | ||
else { | ||
$o .= " $line<br>\n"; | ||
} | ||
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} | ||
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foreach ($diff0 as $rm) { | ||
$o .= "<b>-</b><font color=\"#990000\"> <tt>$rm</tt></font><br>\n"; | ||
} | ||
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return($o); | ||
} | ||
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?> |
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<?php | ||
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# | ||
# this plugin prints the "pages linking to" below a page (the same | ||
# information the "links/" action does) | ||
# | ||
# altered to use ewiki_get_backlinks() by AndyFundinger. | ||
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$ewiki_plugins["view_append"][] = "ewiki_view_append_backlinks"; | ||
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function ewiki_view_append_backlinks($id, $data, $action) { | ||
$pages = ewiki_get_backlinks($id); | ||
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$o=""; | ||
foreach ($pages as $id) { | ||
$o .= ' <a href="'.ewiki_script("",$id).'">'.$id.'</a>'; | ||
} | ||
($o) && ($o = "<div class=\"wiki_backlinks\"><small>Backlinks:</small><br>$o</div>\n"); | ||
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return($o); | ||
} | ||
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?> |
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<?php | ||
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# if someone uploads an image, which is larger than the allowed | ||
# image size (EWIKI_IMAGE_MAXSIZE), then this plugin tries to | ||
# rescale that image until it fits; it utilizes the PHP libgd | ||
# functions to accomplish this | ||
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# NOTE: It is currently disabled for Win32, because nobody knows, if | ||
# this will crash the PHP interpreter on those systems. | ||
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define("EWIKI_IMGRESIZE_WIN", 0); | ||
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if (!strstr(PHP_VERSION, "-dev") && !function_exists("imagecreate") && function_exists("dl")) { #-- try to load gd lib | ||
@dl("php_gd2.dll") or @dl("gd.so"); | ||
} | ||
if (function_exists("imagecreate")) { | ||
$ewiki_plugins["image_resize"][] = "ewiki_binary_resize_image_gd"; | ||
} | ||
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function ewiki_binary_resize_image_gd(&$filename, &$mime, $return=0) { | ||
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/*** this disallows Win32 ***/ | ||
if ( (DIRECTORY_SEPARATOR!="/") && !EWIKI_IMAGERESIZE_WIN | ||
|| (strpos($mime, "image/")!==0) ) | ||
{ | ||
return(false); | ||
} | ||
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$tmp_rescale = $filename; | ||
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#-- initial rescale | ||
$r = EWIKI_IMAGE_MAXSIZE / filesize($tmp_rescale); | ||
$r = ($r) + ($r - 1) * ($r - 1); | ||
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#-- read orig image | ||
strtok($mime, "/"); | ||
$type = strtok("/"); | ||
if (function_exists($pf = "imagecreatefrom$type")) { | ||
$orig_image = $pf($filename); | ||
} | ||
else { | ||
return(false); | ||
} | ||
$orig_x = imagesx($orig_image); | ||
$orig_y = imagesy($orig_image); | ||
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#-- change mime from .gif to .png | ||
if (($type == "gif") && (false || function_exists("imagepng") && !function_exists("imagegif"))) { | ||
$type = "png"; | ||
} | ||
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#-- retry resizing | ||
$loop = 20; | ||
while (($loop--) && (filesize($tmp_rescale) > EWIKI_IMAGE_MAXSIZE)) { | ||
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if ($filename == $tmp_rescale) { | ||
$tmp_rescale = tempnam(EWIKI_TMP, "ewiki.img_resize_gd.tmp."); | ||
} | ||
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#-- sizes | ||
$new_x = (int) ($orig_x * $r); | ||
$new_y = (int) ($orig_y * $r); | ||
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#-- new gd image | ||
$tc = function_exists("imageistruecolor") && imageistruecolor($orig_image); | ||
if (!$tc || ($type == "gif")) { | ||
$new_image = imagecreate($new_x, $new_y); | ||
imagepalettecopy($new_image, $orig_image); | ||
} | ||
else { | ||
$new_image = imagecreatetruecolor($new_x, $new_y); | ||
} | ||
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#-- resize action | ||
imagecopyresized($new_image, $orig_image, 0,0, 0,0, $new_x,$new_y, $orig_x,$orig_y); | ||
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#-- special things | ||
if ( ($type == "png") && function_exists("imagesavealpha") ) { | ||
imagesavealpha($new_image, 1); | ||
} | ||
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#-- save | ||
if (function_exists($pf = "image$type")) { | ||
$pf($new_image, $tmp_rescale); | ||
} | ||
else { | ||
return(false); # cannot save in orig format (.gif) | ||
} | ||
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#-- prepare next run | ||
imagedestroy($new_image); | ||
clearstatcache(); | ||
$r *= 0.95; | ||
} | ||
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#-- stop | ||
imagedestroy($orig_image); | ||
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#-- security check filesizes, abort | ||
if (!filesize($filename) || !filesize($tmp_rescale) || (filesize($tmp_rescale) > EWIKI_IMAGE_MAXSIZE)) { | ||
unlink($tmp_rescale); | ||
return($false); | ||
} | ||
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#-- set $mime, as it may have changed (.gif) | ||
$mime = strtok($mime, "/") . "/" . $type; | ||
if (!strstr($filename, ".$type")) { | ||
unlink($filename); | ||
$filename .= ".$type"; | ||
} | ||
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#-- move tmp file to old name | ||
copy($tmp_rescale, $filename); | ||
unlink($tmp_rescale); | ||
return(true); | ||
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} | ||
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?> |
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<?php | ||
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/* | ||
this plugin introduces markup for footnotes, use it like: | ||
... | ||
some very scientific sentence {{this is a footnote explaination}} | ||
... | ||
this may be useful in some rare cases; usually one should create | ||
a WikiLink to explain a more complex task on another page; | ||
your decision | ||
*/ | ||
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$ewiki_plugins["format_source"][] = "ewiki_format_source_footnotes"; | ||
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function ewiki_format_source_footnotes (&$source) { | ||
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$notenum = 0; | ||
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$l = 0; | ||
while ( | ||
($l = strpos($source, "{{", $l)) | ||
&& ($r = strpos($source, "}}", $l)) | ||
) | ||
{ | ||
$l += 2; | ||
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#-- skip "{{...\n...}}" | ||
if (strpos($source, "\n", $l) < $r) { | ||
continue; | ||
} | ||
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$notenum++; | ||
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#-- extract "footnote" | ||
$footnote = substr($source, $l, $r - $l); | ||
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#-- strip "{{footnote}}" | ||
$source = substr($source, 0, $l - 2) | ||
. "<a href=\"#fn$notenum\">·$notenum</a>" | ||
. substr($source, $r + 2); | ||
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#-- add "footnote" to the end of the wiki page source | ||
if ($notenum==1) { | ||
$source .= "\n----"; | ||
} | ||
$source .= "\n" . | ||
"<a name=\"fn$notenum\">·$notenum</a> ". $footnote . "\n<br>"; | ||
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} | ||
} | ||
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?> |
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<?php | ||
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# lists all pages, which are not referenced from others | ||
# (works rather unclean and dumb) | ||
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define("EWIKI_PAGE_ORPHANEDPAGES", "OrphanedPages"); | ||
$ewiki_plugins["page"][EWIKI_PAGE_ORPHANEDPAGES] = "ewiki_page_orphanedpages"; | ||
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function ewiki_page_orphanedpages($id, $data, $action) { | ||
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global $ewiki_links; | ||
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$o = ewiki_make_title($id, $id, 2); | ||
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$pages = array(); | ||
$refs = array(); | ||
$orphaned = array(); | ||
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#-- read database | ||
$db = ewiki_database("GETALL", array("refs", "flags")); | ||
$n=0; | ||
while ($row = $db->get()) { | ||
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$p = $row["id"]; | ||
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#-- remove self-reference | ||
$row["refs"] = str_replace("\n$p\n", "\n", $row["refs"]); | ||
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#-- add to list of referenced pages | ||
$rf = explode("\n", trim($row["refs"])); | ||
$refs = array_merge($refs, $rf); | ||
if ($n++ > 299) { | ||
$refs = array_unique($refs); | ||
$n=0; | ||
} // (clean-up only every 300th loop) | ||
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#-- add page name | ||
if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT) { | ||
$pages[] = $row["id"]; | ||
} | ||
} | ||
$refs = array_unique($refs); | ||
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#-- check pages to be referenced from somewhere | ||
foreach ($pages as $p) { | ||
if (!ewiki_in_array($p, $refs)) { | ||
if (!EWIKI_PROTECTED_MODE || EWIKI_PROTECTED_MODE_HIDING || ewiki_auth($p, $uu, "view")) { | ||
$orphaned[] = $p; | ||
} | ||
} | ||
} | ||
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#-- output | ||
$o .= ewiki_list_pages($orphaned, 0); | ||
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return($o); | ||
} | ||
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?> |
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<?php | ||
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# this plugins provides the internal page "PageIndex", which lists all | ||
# pages alphabetically | ||
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define("EWIKI_PAGE_PAGEINDEX", "PageIndex"); | ||
$ewiki_plugins["page"][EWIKI_PAGE_PAGEINDEX] = "ewiki_page_index"; | ||
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function ewiki_page_index($id=0, $data=0, $action=0, $args=array()) { | ||
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global $ewiki_plugins; | ||
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$o = ewiki_make_title($id, $id, 2); | ||
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$sorted = array(); | ||
$sorted = array_merge($sorted, array_keys($ewiki_plugins["page"])); | ||
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$exclude = "\n" . implode("\n", | ||
preg_split("/\s*[,;:\|]\s*/", $args["exclude"])) . | ||
"\n"; | ||
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$result = ewiki_database("GETALL", array("flags")); | ||
while ($row = $result->get()) { | ||
if (EWIKI_PROTECTED_MODE && EWIKI_PROTECTED_MODE_HIDING && !ewiki_auth($row["id"], $uu, "view")) { | ||
continue; | ||
} | ||
if (($row["flags"] & EWIKI_DB_F_TYPE) == EWIKI_DB_F_TEXT) { | ||
if (!stristr($exclude, "\n".$row["id"]."\n")) { | ||
$sorted[] = $row["id"]; | ||
} | ||
} | ||
} | ||
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natcasesort($sorted); | ||
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$o .= ewiki_list_pages($sorted, 0, 0, $ewiki_plugins["list_dict"][0]); | ||
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return($o); | ||
} | ||
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?> |