function makethumb($srcfile, $thumbsizearr = array(100, 100), $dstfile = '')
{
global $_SCONFIG;
if (empty($dstfile)) {
$dstfile = filemain($srcfile) . '.thumb.jpg';
//自建立缩略图
$srcfile_file = A_DIR . '/' . $srcfile;
$dstfile_file = A_DIR . '/' . $dstfile;
} else {
$srcfile_file = $srcfile;
$dstfile_file = $dstfile;
}
if (!file_exists($srcfile_file)) {
return '';
}
$opnotkeepscale = 4;
$opbestresizew = 8;
$opbestresizeh = 16;
$option = $_SCONFIG['thumboption'];
$cutmode = $_SCONFIG['thumbcutmode'];
$startx = $_SCONFIG['thumbcutstartx'];
$starty = $_SCONFIG['thumbcutstarty'];
$dstW = intval($thumbsizearr[0]);
$dstH = intval($thumbsizearr[1]);
if ($dstW < 20) {
$dstW = 100;
}
if ($dstH < 20) {
$dstH = 100;
}
$imgtype = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
$func_output = 'ImageJpeg';
if (!function_exists($func_output)) {
return '';
}
$data = @getimagesize($srcfile_file);
if (!empty($data) && is_array($data) && $data[2] != 1 && $data['mime'] != 'image/gif') {
} else {
return '';
}
$func_create = "imagecreatefrom" . $imgtype[$data[2]];
if (!function_exists($func_create)) {
return '';
}
$im = @$func_create($srcfile_file);
$srcW = @imagesx($im);
$srcH = @imagesy($im);
$srcX = 0;
$srcY = 0;
$dstX = 0;
$dstY = 0;
//SIZE
if ($srcW < $dstW) {
$dstW = $srcW;
}
if ($srcH < $dstH) {
$dstH = $srcH;
}
if ($option & $opbestresizew) {
$dstH = round($dstW * $srcH / $srcW);
}
if ($option & $opbestresizeh) {
$dstW = round($dstH * $srcW / $srcH);
}
$fdstW = $dstW;
$fdstH = $dstH;
//CUT
if ($cutmode != 0) {
$srcW -= $startx;
$srcH -= $starty;
if ($srcW * $dstH > $srcH * $dstW) {
$testW = round($dstW * $srcH / $dstH);
$testH = $srcH;
} else {
$testH = round($dstH * $srcW / $dstW);
$testW = $srcW;
}
switch ($cutmode) {
case 1:
$srcX = 0;
$srcY = 0;
break;
case 2:
$srcX = round(($srcW - $testW) / 2);
$srcY = round(($srcH - $testH) / 2);
break;
case 3:
$srcX = $srcW - $testW;
$srcY = $srcH - $testH;
break;
}
$srcW = $testW;
$srcH = $testH;
$srcX += $startx;
$srcY += $starty;
} else {
if (!($option & $opnotkeepscale)) {
if ($srcW * $dstH > $srcH * $dstW) {
$fdstH = round($srcH * $dstW / $srcW);
$dstY = floor(($dstH - $fdstH) / 2);
$fdstW = $dstW;
} else {
$fdstW = round($srcW * $dstH / $srcH);
$dstX = floor(($dstW - $fdstW) / 2);
$fdstH = $dstH;
}
$dstX = $dstX < 0 ? 0 : $dstX;
$dstY = $dstX < 0 ? 0 : $dstY;
$dstX = $dstX > $dstW / 2 ? floor($dstW / 2) : $dstX;
$dstY = $dstY > $dstH / 2 ? floor($dstH / s) : $dstY;
}
}
if (function_exists("imagecopyresampled") and function_exists("imagecreatetruecolor")) {
$func_create = "imagecreatetruecolor";
$func_resize = "imagecopyresampled";
} elseif (function_exists("imagecreate") and function_exists("imagecopyresized")) {
$func_create = "imagecreate";
$func_resize = "imagecopyresized";
} else {
return '';
}
$newim = @$func_create($dstW, $dstH);
$black = @imagecolorallocate($newim, 0, 0, 0);
$back = @imagecolortransparent($newim, $black);
@imagefilledrectangle($newim, 0, 0, $dstW, $dstH, $black);
@$func_resize($newim, $im, $dstX, $dstY, $srcX, $srcY, $fdstW, $fdstH, $srcW, $srcH);
@$func_output($newim, $dstfile_file);
@imagedestroy($im);
@imagedestroy($newim);
if (!file_exists($dstfile_file)) {
return '';
}
return $dstfile;
}
//检查大小
if (empty($filearr['file'])) {
continue;
}
if (!empty($allowtypearr)) {
if ($filearr['size'] > $allowtypearr[$fileext]['maxsize']) {
@unlink(A_DIR . '/' . $filearr['file']);
if (!empty($filearr['thumb'])) {
@unlink(A_DIR . '/' . $filearr['thumb']);
}
continue;
}
}
//数据库
if (empty($_POST['uploadsubject1'])) {
$_POST['uploadsubject1'] = cutstr(filemain($filearr['name']), 50);
}
$insertsqlarr = array('uid' => $uid, 'dateline' => $_SGLOBAL['timestamp'], 'filename' => saddslashes($filearr['name']), 'subject' => trim(shtmlspecialchars($_POST['uploadsubject1'])), 'attachtype' => $filearr['type'], 'isimage' => in_array($fileext, array('jpg', 'jpeg', 'gif', 'png')) ? 1 : 0, 'size' => $filearr['size'], 'filepath' => $filearr['file'], 'thumbpath' => $filearr['thumb'], 'hash' => $hash);
inserttable('attachments', $insertsqlarr);
$imagereplace['oldimageurl'][] = $imageurl;
$imagereplace['newimageurl'][] = A_URL . '/' . $filearr['file'];
}
//检查是否有图片下载，并替换掉原有的图片url
if (!empty($imagereplace)) {
$string = preg_replace(array("/\\<(script|style|iframe)[^\\>]*?\\>.*?\\<\\/(\\1)\\>/si", "/\\<!*(--|doctype|html|head|meta|link|body)[^\\>]*?\\>/si"), '', $string);
$string = str_replace($imagereplace['oldimageurl'], $imagereplace['newimageurl'], $string);
$string = str_replace(array("\r", "\n", "\r\n"), '', addcslashes($string, '/"\\'));
$getimages = implode('|', $imagereplace['newimageurl']) . '|' . $getimages;
print <<<EOF
t<script type="text/javascript">
tparent.document.getElementById("message").innerHTML = '';
