inital commit

webroot/forum/inc/functions_massmail.php

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+<?php
+/**
+ * MyBB 1.8
+ * Copyright 2014 MyBB Group, All Rights Reserved
+ *
+ * Website: http://www.mybb.com
+ * License: http://www.mybb.com/about/license
+ *
+ */
+
+/**
+ * Build the mass email SQL query for the specified conditions.
+ *
+ * @param array $conditions Array of conditions to match users against.
+ * @return string The generated search SQL
+ */
+function build_mass_mail_query($conditions)
+{
+	global $db;
+
+	if(!is_array($conditions))
+	{
+		return '';
+	}
+
+	$search_sql = 'u.allownotices=1';
+
+	// List of valid LIKE search fields
+	$user_like_fields = array("username", "email");
+	foreach($user_like_fields as $search_field)
+	{
+		if($conditions[$search_field])
+		{
+			$search_sql .= " AND u.{$search_field} LIKE '%".$db->escape_string_like($conditions[$search_field])."%'";
+		}
+	}
+
+	// LESS THAN or GREATER THAN
+	$direction_fields = array("postnum");
+	foreach($direction_fields as $search_field)
+	{
+		$direction_field = $search_field."_dir";
+		if(!empty($conditions[$search_field]) && $conditions[$direction_field])
+		{
+			switch($conditions[$direction_field])
+			{
+				case "greater_than":
+					$direction = ">";
+					break;
+				case "less_than":
+					$direction = "<";
+					break;
+				default:
+					$direction = "=";
+			}
+			$search_sql .= " AND u.{$search_field}{$direction}'".(int)$conditions[$search_field]."'";
+		}
+	}
+
+	// Time-based search fields
+	$time_fields = array("regdate", "lastactive");
+	foreach($time_fields as $search_field)
+	{
+		$time_field = $search_field."_date";
+		$direction_field = $search_field."_dir";
+		if(!empty($conditions[$search_field]) && $conditions[$time_field] && $conditions[$direction_field])
+		{
+			switch($conditions[$time_field])
+			{
+				case "hours":
+					$date = $conditions[$search_field]*60*60;
+					break;
+				case "days":
+					$date = $conditions[$search_field]*60*60*24;
+					break;
+				case "weeks":
+					$date = $conditions[$search_field]*60*60*24*7;
+					break;
+				case "months":
+					$date = $conditions[$search_field]*60*60*24*30;
+					break;
+				case "years":
+					$date = $conditions[$search_field]*60*60*24*365;
+					break;
+				default:
+					$date = $conditions[$search_field]*60*60*24;
+			}
+
+			switch($conditions[$direction_field])
+			{
+				case "less_than":
+					$direction = ">";
+					break;
+				case "more_than":
+					$direction = "<";
+					break;
+				default:
+					$direction = "<";
+			}
+			$search_sql .= " AND u.{$search_field}{$direction}'".(TIME_NOW-$date)."'";
+		}
+	}
+
+	// Usergroup based searching
+	if($conditions['usergroup'])
+	{
+		if(!is_array($conditions['usergroup']))
+		{
+			$conditions['usergroup'] = array($conditions['usergroup']);
+		}
+
+		$conditions['usergroup'] = array_map('intval', $conditions['usergroup']);
+
+		$additional_sql = '';
+		foreach($conditions['usergroup'] as $usergroup)
+		{
+			switch($db->type)
+			{
+				case "pgsql":
+				case "sqlite":
+					$additional_sql .= " OR ','||additionalgroups||',' LIKE '%,{$usergroup},%'";
+					break;
+				default:
+					$additional_sql .= " OR CONCAT(',',additionalgroups,',') LIKE '%,{$usergroup},%'";
+			}
+		}
+		$search_sql .= " AND (u.usergroup IN (".implode(",", $conditions['usergroup']).") {$additional_sql})";
+	}
+
+	return $search_sql;
+}
+
+/**
+ * Create a text based version of a HTML mass email.
+ *
+ * @param string $message The HTML version.
+ * @return string The generated text based version.
+ */
+function create_text_message($message)
+{
+	// Cut out all current line breaks
+	// Makes links CONTENT (link)
+	$message = make_pretty_links($message);
+	$message = str_replace(array("\r\n", "\n"), "\n", $message);
+	$message = preg_replace("#</p>#i", "\n\n", $message);
+	$message = preg_replace("#<br( \/?)>#i", "\n", $message);
+	$message = preg_replace("#<p[^>]*?>#i", "", $message);
+	$message = preg_replace("#<hr[^>]*?>\s*#i", "-----------\n", $message);
+	$message = html_entity_decode($message);
+	$message = str_replace("\t", "", $message);
+	do
+	{
+		$message = str_replace("  ", " ", $message);
+	}
+	while(strpos($message, "  ") !== false);
+
+	$search = array('@<script[^>]*?>.*?</script>@si',  // Strip out javascript
+				   '@<style[^>]*?>.*?</style>@siU',    // Strip style tags properly
+				   '@<title[^>]*?>.*?</title>@siU',    // Strip title tags
+				   '@<[\/\!]*?[^<>]*?>@si',            // Strip out HTML tags
+				   '@<![\s\S]*?--[ \t\n\r]*>@'        // Strip multi-line comments including CDATA
+	);
+	$message = preg_replace($search, '', $message);
+	$message = preg_replace("#\n\n+#", "\n\n", $message);
+	$message = preg_replace("#^\s+#is", "", $message);
+	return $message;
+}
+
+/**
+ * Generates friendly links for a text based version of a mass email from the HTML version.
+ *
+ * @param string $message_html The HTML version.
+ * @return string The version with the friendly links and all <a> tags stripped.
+ */
+function make_pretty_links($message_html)
+{
+	do
+	{
+		$start = stripos($message_html, "<a");
+		if($start === false)
+		{
+			break;
+		}
+		$end = stripos($message_html, "</a>", $start);
+		if($end === false)
+		{
+			break;
+		}
+
+		$a_href = substr($message_html, $start, ($end-$start));
+
+		preg_match("#href=\"?([^\"> ]+)\"?#i", $a_href, $href_matches);
+		if(!$href_matches[1])
+		{
+			continue;
+		}
+		$link = $href_matches[1];
+
+		$contents = strip_tags($a_href);
+		if(!$contents)
+		{
+			preg_match("#alt=\"?([^\">]+)\"?#i", $a_href, $matches2);
+			if($matches2[1])
+			{
+				$contents = $matches2[1];
+			}
+			if(!$contents)
+			{
+				preg_match("#title=\"?([^\">]+)\"?#i", $a_href, $matches2);
+				if($matches2[1])
+				{
+					$contents = $matches2[1];
+				}
+			}
+		}
+
+		$replaced_link = $contents." ({$link}) ";
+
+		$message_html = substr_replace($message_html, $replaced_link, $start, ($end-$start));
+	} while(true);
+	return $message_html;
+}