Блог с оригинальной идей — дневник Двух ав

// register global var.
$_SESSION['posted_txt'] = isset($_SESSION['posted_txt']) ? $_SESSION['posted_txt'] : '';

		if (($_POST['comment']!='')&&
		    ($_SESSION['posted_txt']!=$_POST['comment'])) {
                      $public = true;
		} else {
		  $public = false;
		}
		if ($public) {
			// get user's id and name
	                  $_SESSION['posted_txt'] = $_POST['comment'];
                           [... Дальнйший код ...]

/**
 *
 *	Name: UserComments
 *	Desc: Append User Comments to any Document
 *	Created by Raymond Irving, July 2005
 *
 *	Version: 1.1
 *	Updated: December 8, 2005
 *	
 *	Changes:
 *	Dec 8, 05 - Fixed ability to specify the comments to display (remote show via passing in &docid) by [email protected]
 *
 *	Parameters:
 *		&displaytpl		- display template (chunk name)
 *		&formtpl		- form template (chunk name)
 *
 *		&canpost		- comma delimitted web groups that can post comments. leave blank for public posting
 *		&canview		- comma delimitted web groups that can view comments. leave blank for public viewing
 *		&badwords		- comma delimited list of words not allowed in post
 *		&makefolder		- set to 1 to automatically convert the parent document to a folder. Defaults to 0
 *		&folder			- folder id where comments are stored
 *		&docid			- document id to use where comments are stored ... use for "remote comment displays"
 *		&tagid			- a unique id used to identify or tag user comments on a page where multiple comments are required. 
 *		&freeform		- set this option to 1 to use the [+UserComments.Form+] placholder to relocate the comment form. 
 *
 *		&postcss		- sets the css class used to format the comment block DIV
 *		&titlecss		- sets the css class used to format the comment title DIV
 *		&codecss		- sets the css class used to format code tags
 *		&numbecss		- sets the css class used to format the comment number DIV
 *		&authorcss		- sets the css class used identify author's comments
 *		&ownercss		- sets the css class used identify the owner's comments
 *		&altrowcss		- sets the css class used identify author's comments
 * 
 *		&dateformat		- sets php date format for new comments (see http://php.net/strftime for formatting options)
 *		&sortorder		- sort the comments in either ascending order (when set to 0) or descending order (when set to 1). Defaults to descending (1)
 *		&recentposts	- set the number of recent posts to be displayed. set to 0 to show all post. Defaults to 0
 *
 */
// redirect to host document if an attempt was 
// made to display the document containing the comments
if(isset($hostid)) {
	$url = $modx->makeUrl($hostid);
	$modx->sendRedirect($url);
	exit;
}

// set to true to echo out variables before the comment block for troubleshooting
$debug = false;

// get user groups that can post & view comments
$postgrp = isset($canpost) ? explode(",",$canpost):array();
$viewgrp = isset($canview) ? explode(",",$canview):array();
$allowAnyPost = count($postgrp)==0 ? true : false;
$allowAnyView = count($viewgrp)==0 ? true : false;

// get current document id (if set, show-only mode)
$docid = isset($docid) ? intval($docid):$modx->documentIdentifier;

// get folder id where we should store comments 
// else store in current document
$folder = isset($folder) ? intval($folder):$docid;

// get free form option
$freeform = isset($freeform) && $freeform==1 ? 1:0;

// get tagid
$tagid = isset($tagid) ? preg_replace("/[^A-z0-9_\-]/",'',$tagid):'';

// set alias name of document used to store comments
$alias = 'usrcmt-'.$docid.($tagid ? '-'.$tagid:'');

// get sort order
$sortorder = isset($sortorder) ? $sortorder : 1;

// get comment block style/class
$postcss = isset($postcss) ? ' class="'.$postcss.'[+altrowclass+][+authorclass+]"' : ' style="font-size:11px;line-height: 17px;white-space:normal;width:100%;background-color:#eee;color: #111;padding:5px;margin-bottom:10px;" class="[+altrowclass+][+authorclass+]"';

// get post title class
$titlecss = isset($titlecss) ? ' class="'.$titlecss.'"' : ' style="width:100%;background-color:#c0c0c0;padding:2px;margin-bottom:5px;"';

// get post number class
$numbercss = isset($numbercss) ? ' class="'.$numbercss.'"' : ' style="float:right; padding: 0 0 20px 20px;font-size:24px;color:#ccc;font-weight:bold;"';

// get code style/class
$codecss = isset($codecss) ? ' class="'.$codecss.'"' : ' style="background-color:#eee;border-top:2px solid #e0e0e0;margin:0;"';

// get author class
$authorcss = isset($authorcss) ? ' '.$authorcss : '';

// get owner's class
$ownercss = isset($ownercss) ? ' '.$ownercss : '';

// get alt row style/class
$altrowcss = isset($altrowcss) ? ' '.$altrowcss : '';

// get date format
$dateformat = isset($dateformat) ? $dateformat : '%e%b%Y %I:%M%p';

// set recent post value
$recentposts = isset($recentposts) ? $recentposts : 0;

// get badwords
if(isset($badwords)) {
	$badwords = str_replace(' ','', $badwords);
	$badwords = "/".str_replace(',','|', $badwords)."/i";
}

// set splitter
$splitter = '<!--Comment-Spliter:'.$docid.'-->';

// register global var.
$_SESSION['posted_txt'] = isset($_SESSION['posted_txt']) ? $_SESSION['posted_txt'] : '';

// get postback status
$isPostBack = isset($_POST['UserCommentForm'.$tagid]) ? true:false;

// get display template
if(isset($displaytpl)) $displayTpl = $modx->getChunk($displaytpl);
if(empty($displaytpl)) $displayTpl = '
[+UID:[+uid+]+]<div[+postclass+]>
   <div[+numberclass+]>
     [+postnumber+]
   </div>
	<div[+titleclass+]>
		<strong>[+subject+]</strong><span>[+user+] [+createdon+]</span>
	</div>
	<div class="content">
		[+comment+]
	</div>

</div>
';

// get form template
if(isset($formtpl)) $formTpl = $modx->getChunk($formtpl);
if(empty($formTpl)) $formTpl = '
<form method="post" action="[~[*id*]~]">
	<input name="[+tagname+]" type="hidden" value="on" />
	Subject:<br /><input name="subject" type="text" size="40" value="" /><br />
	Comment:<br /><textarea name="comment" cols="50" rows="8"></textarea><br />
	<input name="send" type="submit" value="Submit" />
</form>
';


// switch block
switch ($isPostBack) {
	case true:	// process post backs
		if (($_POST['comment']!='')&&
		    ($_SESSION['posted_txt']!=$_POST['comment'])) {
                      $public = true;
		} else {
		  $public = false;
		}
		if ($public) {
			// get user's id and name
	                  $_SESSION['posted_txt'] = $_POST['comment'];
			$uid = $modx->getLoginUserID();
			$user = $modx->getLoginUserName();
			if(!$user && $allowAnyPost) $user = 'anonymous';

			// check if user has rights
			if(!$allowAnyPost && !$modx->isMemberOfWebGroup($postgrp)) {
				return 'You are not allowed to post comments';
			}

			$createdon = time();

// format comment title, classes and/or styles
			$comment = str_replace('[+user+]',$user,$displayTpl);
			$comment = str_replace('[+uid+]',$uid,$comment);
			$comment = str_replace('[+postclass+]',$postcss,$comment);
			$comment = str_replace('[+titleclass+]',$titlecss,$comment);
			$comment = str_replace('[+numberclass+]',$numbercss,$comment);
			$comment = str_replace('[+createdon+]',strftime($dateformat,$createdon),$comment);			
			// check for author's comments
			if($uid && ($uid*-1)==$modx->documentObject['createdby']) {
				$comment = str_replace('[+authorclass+]',$authorcss,$comment);
			}
            
            // deal with code tags and bad words
			foreach($_POST as $n=>$v) {
				if(!empty($badwords)) $v = preg_replace($badwords,'[Filtered]',$v); // remove badwords
				$v = $modx->stripTags(htmlspecialchars($v));
				if($n=='comment' && strpos($v,'')!==false){

					// preserve code

					preg_match_all("|\[code\](.*)\[/code\]|Uis",$v,$matches);

					for ($i=0;$i<count($matches[0]);$i++) {

						$tag = $matches[0][$i];

						$text = $matches[1][$i];

						$v = str_replace($tag,'<pre'.$codecss.'>'.$text.'</pre>',$v);

					}

				}

				$v = str_replace("\r",'',$v);

				$v = str_replace("\n",'

',$v);

				$comment = str_replace('[+'.$n.'+]',$v,$comment);

			}



			$comment = str_replace($splitter,'',$comment); // remove splitter from comment



			// save comment

			$sql = 'SELECT pagetitle FROM '.$modx->getFullTableName('site_content').' WHERE parent=\''.$folder.'\' AND alias=\''.$alias.'\' LIMIT 1';

			if($modx->db->getValue($sql)) {

				// update comments

				$sql = 	' UPDATE '.$modx->getFullTableName('site_content').

						' SET content = CONCAT(\''.$comment.$splitter.'\',content)'.

						' WHERE parent=\''.$folder.'\' AND alias=\''.$alias.'\'';

				$modx->db->query($sql);

			}

			else {

				// create new comment page

				$doc = $modx->getDocument($docid);

				$title = mysql_escape_string($doc['pagetitle']).' - User comments';

				$flds = array(

					'pagetitle'	=> $title,

					'alias'		=> $alias,

					'parent'	=> $folder, 

					'createdon' => $createdon,

					'createdby' => '0',

					'editedon' 	=> '0',

					'editedby' 	=> '0',

					'published' => '1',

					'deleted' 	=> '0',

					'hidemenu' 	=> '1',

					'template' 	=> '0',

					'content' 	=> $comment.$splitter.'[['.$modx->getSnippetName().'? &hostid=`'.$docid.'`]]'

				);

				$modx->db->insert($flds,$modx->getFullTableName('site_content'));

				if(!empty($makefolder)) {

					// convert parent into folder

					$modx->db->update(array('isfolder'=>'1'),$modx->getFullTableName('site_content'),'id=\''.$folder.'\'');

				}

			}

		}

	

	default:	// display comments

		// check if user has rights to view comments

		if(!$allowAnyView && !$modx->isMemberOfWebGroup($viewgrp)) {

			$comment = '';

		}

		else {



			$uid = $modx->getLoginUserID();



			// get comments

			$ds = $modx->db->select('content',$modx->getFullTableName('site_content'),' parent=\''.$folder.'\' AND alias=\''.$alias.'\'');

			$content = $modx->db->getValue($ds);



			// split content into separate comments

			$parts = explode($splitter,$content);

			array_pop($parts);

			

			// count comments

			$count = count($parts);			

			$modx->setPlaceholder("UserComments.Count",$count);



			// handle recent post

			$offset = 0;

			if($recentposts>0) {

				$parts = array_slice($parts,0,$recentposts);

				$offset = $count-$recentposts;

				$count = $recentposts;

			}

			

			// prepare comments

			if($sortorder==0) $parts = array_reverse($parts);

			for($i=0;$i<$count;$i++) {

				$part = $parts[$i];

				$num = ($sortorder==1) ? $count-$i:$i+1;

				$part = str_replace('[+postnumber+]',$num+$offset,$part);

				if($altrowcss && ($i % 2)==0) $part = str_replace('[+altrowclass+]',$altrowcss,$part);

				// check for owner's comments

				if($uid && strpos($part,'[+UID:'.$uid.'+]')!==false) $part = str_replace('[+authorclass+]',$ownercss,$part);

				$parts[$i] = $part;

			}

			

			$comments = implode("",$parts);

			

		}

		// check if user has rights to post comments

		if(!$allowAnyPost && !$modx->isMemberOfWebGroup($postgrp)) {

			$formTpl = '';

		}

		else{

			$formTpl = str_replace('[+tagname+]','UserCommentForm'.$tagid,$formTpl);

		}



		$troubleshooting = ($debug)? "alias: $alias - folder: $folder - docid: $docid - tag: $tagid":'';



		// return comments along with form

		return $troubleshooting.$comments.($freeform ? $modx->setPlaceholder('UserComments.Form',$formTpl):$formTpl);

		break;

}