function show_entries($offset = NULL, $maxcount = NULL, $showNavigaion = TRUE, $showCheckboxes = FALSE, $showadminfields = FALSE, $approvedOnly = TRUE)
{
global $MAX_ENTRIES_PER_PAGE;
global $DISPLAY_TIME_ZONE;
if ($showadminfields === TRUE) {
$approvedOnly = FALSE;
}
// Set the display time zone, if applicable
if (!empty($DISPLAY_TIME_ZONE)) {
if (function_exists("date_default_timezone_set")) {
@date_default_timezone_set($DISPLAY_TIME_ZONE);
} else {
putenv("TZ=" . $DISPLAY_TIME_ZONE);
}
}
// Validate and initialize record offset
if (!isset($offset) && isset($_REQUEST['offset'])) {
$offset = $_REQUEST['offset'];
if (!is_numeric($offset) || $offset < 0) {
die("Invalid offset.");
}
} else {
$offset = 0;
}
if (!isset($maxcount)) {
$maxcount = $MAX_ENTRIES_PER_PAGE;
}
// If navigation page numbers are being used, we need
// the count of total entries
global $SHOW_PAGE_NUMBER_NAVIGATION;
if ($SHOW_PAGE_NUMBER_NAVIGATION === TRUE) {
$totalEntries = get_guestbook_entries_count($approvedOnly);
} else {
$totalEntries = -1;
}
$guestbookExists = guestbook_open_for_read() !== FALSE;
$count = 0;
if ($guestbookExists) {
if ($offset > 0) {
guestbook_forward($offset);
}
while ($count < $maxcount && ($entry = guestbook_next()) !== FALSE) {
// Skip entries that are pending approval
if (!$entry['approved'] && $approvedOnly) {
continue;
}
// Determine element ID
$elementId = NULL;
if ($count === 0) {
if ($maxcount === 1) {
$elementId = "onlyEntry";
} else {
$elementId = "firstEntry";
}
} else {
if ($count === $maxcount - 1) {
$elementId = "lastEntry";
}
}
show_entry($entry, $count + $offset, $showCheckboxes, $showadminfields, $elementId);
$count += 1;
}
}
if ($showNavigaion) {
$showMaxCountInPrevNext = !$SHOW_PAGE_NUMBER_NAVIGATION;
$showPrevious = $offset > 0;
$showNext = $guestbookExists && guestbook_next() !== FALSE;
echo "<div class=\"navigation\">\n";
global $GUESTBOOK_URL_PATH;
if ($showPrevious) {
global $PREVIOUS_TEXT;
$previous_offset = $offset - $MAX_ENTRIES_PER_PAGE;
if ($previous_offset < 0) {
$previous_offset = 0;
}
echo "<a href=\"" . urlencode($GUESTBOOK_URL_PATH) . "?offset={$previous_offset}\" id=\"previous\">" . htmlspecialchars_default($PREVIOUS_TEXT) . ($showMaxCountInPrevNext ? " " . htmlspecialchars_default($maxcount) : "") . "</a>\n";
}
if ($SHOW_PAGE_NUMBER_NAVIGATION === TRUE && $totalEntries > $MAX_ENTRIES_PER_PAGE) {
global $NAVIGATION_MAX_PAGE_NUMBERS;
echo "<div class=\"pageNumberContainer\">";
// Show page numbers
$pageNumberOffset = $offset - ($NAVIGATION_MAX_PAGE_NUMBERS - 1) * $MAX_ENTRIES_PER_PAGE;
if ($pageNumberOffset < 0) {
$pageNumberOffset = 0;
}
for ($pageNumberCount = 0; $pageNumberOffset < $totalEntries && $pageNumberCount < $NAVIGATION_MAX_PAGE_NUMBERS; $pageNumberCount++) {
$pageNumberDisplay = $pageNumberOffset / $MAX_ENTRIES_PER_PAGE + 1;
if ($pageNumberOffset != $offset) {
echo "<a href=\"" . urlencode($GUESTBOOK_URL_PATH) . "?offset=" . htmlspecialchars_default($pageNumberOffset) . "\" class=\"pageNumber\">" . htmlspecialchars_default($pageNumberDisplay) . "</a>\n";
} else {
echo "<span class=\"pageNumber\" id=\"currentPageNumber\">" . htmlspecialchars_default($pageNumberDisplay) . "</span>\n";
}
$pageNumberOffset += $MAX_ENTRIES_PER_PAGE;
}
echo "</div>";
} else {
if ($showPrevious && $showNext) {
echo " - ";
}
}
if ($showNext) {
global $NEXT_TEXT;
$next_offset = $offset + $MAX_ENTRIES_PER_PAGE;
echo "<a href=\"" . urlencode($GUESTBOOK_URL_PATH) . "?offset={$next_offset}\" id=\"next\">" . htmlspecialchars_default($NEXT_TEXT) . ($showMaxCountInPrevNext ? " " . htmlspecialchars_default($maxcount) : "") . "</a>\n";
}
echo "</div>\n";
}
if ($guestbookExists) {
guestbook_close();
}
}
function is_flood_detected($ipaddress)
{
global $MIN_SECONDS_BETWEEN_POSTS;
if ($MIN_SECONDS_BETWEEN_POSTS <= 0) {
return FALSE;
}
$timestamp_threshold = time() - $MIN_SECONDS_BETWEEN_POSTS;
$guestbookExists = guestbook_open_for_read() !== FALSE;
if ($guestbookExists) {
// Iterate through entries that occured after flood threshold
while (($entry = guestbook_next()) !== FALSE && intval($entry["timestamp"]) >= $timestamp_threshold) {
if ($entry["ipaddress"] === $ipaddress) {
guestbook_close();
return TRUE;
}
}
guestbook_close();
}
return FALSE;
}
