WordPress文章远程(外链)图片自动本地化

此代码有BUG，此代码已修复

1. 用了后，媒体上传图片，会出现错误，但是图片是正确上传了的，需要再次打开写文章才能在媒体看里看到刚才上传的图片，
2. 远程图片可以正常下载在，但是在显示文章会出现路径不正确，

我先暂时保存了，其实我挺想用的，看我能修复BUG不。

还有最扯是，我把这段代码格式化后，居然网站会打不开。。。。。

//自动本地化外链图片
add_filter('content_save_pre', 'auto_save_image');
function auto_save_image($content) {
$upload_path = '';
$upload_url_path = get_bloginfo('url');
//上传目录
if (($var = get_option('upload_path')) !=''){
$upload_path = $var;
} else {
$upload_path = 'wp-content/uploads';
}
if(get_option('uploads_use_yearmonth_folders')) {
$upload_path .= '/'.date("Y",time()).'/'.date("m",time());
}
//文件地址
if(($var = get_option('upload_url_path')) != '') {
$upload_url_path = $var;
} else {
$upload_url_path = bloginfo('url');
}
if(get_option('uploads_use_yearmonth_folders')) {
$upload_url_path .= '/'.date("Y",time()).'/'.date("m",time());
}
require_once ("../wp-includes/class-snoopy.php");
$snoopy_Auto_Save_Image = new Snoopy;
$img = array();
//以文章的标题作为图片的标题
if ( !empty( $_REQUEST['post_title'] ) )
$post_title = wp_specialchars( stripslashes( $_REQUEST['post_title'] ));
$text = stripslashes($content);
if (get_magic_quotes_gpc()) $text = stripslashes($text);
preg_match_all("/ src=(\"|\'){0,}(http:\/\/(.+?))(\"|\'|\s)/is",$text,$img);
$img = array_unique(dhtmlspecialchars($img[2]));
foreach ($img as $key => $value){
set_time_limit(180); //每个图片最长允许下载时间,秒
if(str_replace(get_bloginfo('url'),"",$value)==$value&&str_replace(get_bloginfo('home'),"",$value)==$value){
//判断是否是本地图片，如果不是，则保存到服务器
$fileext = substr(strrchr($value,'.'),1);
$fileext = strtolower($fileext);
if($fileext==""||strlen($fileext)>4)
$fileext = "jpg";
$savefiletype = array('jpg','gif','png','bmp');
if (in_array($fileext, $savefiletype)){
if($snoopy_Auto_Save_Image->fetch($value)){
$get_file = $snoopy_Auto_Save_Image->results;
}else{
echo "error fetching file: ".$snoopy_Auto_Save_Image->error."<br>";
echo "error url: ".$value;
die();
}
$filetime = time();
$filepath = "/".$upload_path;//图片保存的路径目录
!is_dir("..".$filepath) ? mkdirs("..".$filepath) : null;
//$filename = date("His",$filetime).random(3);
$filename = substr($value,strrpos($value,'/'),strrpos($value,'.')-strrpos($value,'/'));
//$e = '../'.$filepath.$filename.'.'.$fileext;
//if(!is_file($e)) {
// copy(htmlspecialchars_decode($value),$e);
//}
$fp = @fopen("..".$filepath.$filename.".".$fileext,"w");
@fwrite($fp,$get_file);
fclose($fp);
$wp_filetype = wp_check_filetype( $filename.".".$fileext, false );
$type = $wp_filetype['type'];
$post_id = (int)$_POST['temp_ID2'];
$title = $post_title;
$url = $upload_url_path.$filename.".".$fileext;
$file = $_SERVER['DOCUMENT_ROOT'].$filepath.$filename.".".$fileext;
//添加数据库记录
$attachment = array(
'post_type' => 'attachment',
'post_mime_type' => $type,
'guid' => $url,
'post_parent' => $post_id,
'post_title' => $title,
'post_content' => '',
);
$id = wp_insert_attachment($attachment, $file, $post_parent);
$text = str_replace($value,$url,$text); //替换文章里面的图片地址
}
}
}
$content = AddSlashes($text);
remove_filter('content_save_pre', 'auto_save_image');
return $content;
}
function mkdirs($dir)
{
if(!is_dir($dir))
{
mkdirs(dirname($dir));
mkdir($dir);
}
return ;
}
function dhtmlspecialchars($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = dhtmlspecialchars($val);
}
}else{
$string = str_replace('&', '&', $string);
$string = str_replace('"', '"', $string);
$string = str_replace('<', '<', $string);
$string = str_replace('>', '>', $string);
$string = preg_replace('/&(#\d;)/', '&\1', $string);
}
return $string;
}

2018年3月30日20:10:25

花了一下午的时间查找这个错误，这段代码终于好了，我也是从着那个思想来着，能用代码实现就不用插件。

当然，我在调试代码也走了很多弯路，其中这个代码各种变量函数我看不懂，我只有着php怎么调试，然后一个一个的看变量，函数是什么，期间也把我服务器搞蹦了几次。还多亏我有镜像备份，直接还原到昨天的数据，所以我就大胆放心的搞。不过就是今天搞丢了下午的一片日志而已。

这就是我一步步调试出来的代码。到晚上的时候，这堆代码就出问题了，我不管怎么做传到网站一运行，我的数据就会丢掉，不过有个强大的工具，代码对比工具，让我省心多了，最后找出原因，改出了如下正确代码

//自动本地化外链图片
add_filter('content_save_pre', 'auto_save_image');
function auto_save_image($content) {
    $upload_path = '';
    $upload_url_path = get_bloginfo('url');
    //上传目录
    if (($var = get_option('upload_path')) != '') {
        $upload_path = $var;
    } else {
        $upload_path = 'wp-content/uploads';
    }
    if (get_option('uploads_use_yearmonth_folders')) {
        $upload_path.= '/' . date("Y", time()) . '/' . date("m", time());
    }
    //文件地址
    if (($var = get_option('upload_url_path')) != '') {
        $upload_url_path = $var;
    } else {
        $upload_url_path = get_bloginfo('url');
    }
    if (get_option('uploads_use_yearmonth_folders')) {
        $upload_url_path.= '/wp-content/uploads/' . date("Y", time()) . '/' . date("m", time());
    }
    require_once ("../wp-includes/class-snoopy.php");
    $snoopy_Auto_Save_Image = new Snoopy;
    $img = array();
    //以文章的标题作为图片的标题
    if (!empty($_REQUEST['post_title'])) $post_title = wp_specialchars(stripslashes($_REQUEST['post_title']));
    $text = stripslashes($content);
    if (get_magic_quotes_gpc()) $text = stripslashes($text);
    preg_match_all("/ src=(\"|\'){0,}(http:\/\/(.+?))(\"|\'|\s)/is", $text, $img);
    $img = array_unique(dhtmlspecialchars($img[2]));
    foreach ($img as $key => $value) {
        set_time_limit(180); //每个图片最长允许下载时间,秒
        if (str_replace(get_bloginfo('url'), "", $value) == $value && str_replace(get_bloginfo('home'), "", $value) == $value) {
            //判断是否是本地图片，如果不是，则保存到服务器
            $fileext = substr(strrchr($value, '.'), 1);
            $fileext = strtolower($fileext);
            if ($fileext == "" || strlen($fileext) > 4) $fileext = "jpg";
            $savefiletype = array('jpg', 'gif', 'png', 'bmp');
            if (in_array($fileext, $savefiletype)) {
                if ($snoopy_Auto_Save_Image->fetch($value)) {
                    $get_file = $snoopy_Auto_Save_Image->results;
                } else {
                    echo "error fetching file: " . $snoopy_Auto_Save_Image->error . "<br>";
                    echo "error url: " . $value;
                    die();
                }
                $filetime = time();
                $filepath = "/" . $upload_path; //图片保存的路径目录
                !is_dir(".." . $filepath) ? mkdirs(".." . $filepath) : null;
                //$filename = date("His",$filetime).random(3);
                $filename = substr($value, strrpos($value, '/'), strrpos($value, '.') - strrpos($value, '/'));
                //$e = '../'.$filepath.$filename.'.'.$fileext;
                //if(!is_file($e)) {
                // copy(htmlspecialchars_decode($value),$e);
                //}
                $fp = @fopen(".." . $filepath . $filename . "." . $fileext, "w");
                @fwrite($fp, $get_file);
                fclose($fp);
                $wp_filetype = wp_check_filetype($filename . "." . $fileext, false);
                $type = $wp_filetype['type'];
                $post_id = (int)$_POST['temp_ID2'];
                $title = $post_title;
                $url = $upload_url_path . $filename . "." . $fileext;
                $file = $_SERVER['DOCUMENT_ROOT'] . $filepath . $filename . "." . $fileext;
                //添加数据库记录
                $attachment = array('post_type' => 'attachment', 'post_mime_type' => $type, 'guid' => $url, 'post_parent' => $post_id, 'post_title' => $title, 'post_content' => '',);
                $id = wp_insert_attachment($attachment, $file, $post_parent);
                $text = str_replace($value, $url, $text); //替换文章里面的图片地址
                
            }
        }
    }
    $content = AddSlashes($text);
    remove_filter('content_save_pre', 'auto_save_image');
    return $content;
}
function mkdirs($dir) {
    if (!is_dir($dir)) {
        mkdirs(dirname($dir));
        mkdir($dir);
    }
    return;
}
function dhtmlspecialchars($string) {
    if (is_array($string)) {
        foreach ($string as $key => $val) {
            $string[$key] = dhtmlspecialchars($val);
        }
    } else {
        $string = str_replace('&', '&', $string);
        $string = str_replace('"', '"', $string);
        $string = str_replace('<', '<', $string);
        $string = str_replace('>', '>', $string);
        $string = preg_replace('/&(#\d;)/', '&\1', $string);
    }
    return $string;
}

好了，拿去试一试吧，我也不能保证在你那里能正常运行，不正常的请反馈，我这边是正常使用。