From d75331d8b8816f0806ca324b550483cbadaf656f Mon Sep 17 00:00:00 2001
From: BigCoke233 <hi@guhub.cn>
Date: Tue, 14 Jul 2020 14:15:59 +0800
Subject: =?UTF-8?q?:zap:=20Add:=20=E5=8A=A0=E5=85=A5=20HTML=20=E5=8E=8B?=
 =?UTF-8?q?=E7=BC=A9=E5=8A=9F=E8=83=BD?=
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---
 libs/Utils.php | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 56 insertions(+), 3 deletions(-)

(limited to 'libs/Utils.php')

diff --git a/libs/Utils.php b/libs/Utils.php
index 541e46d..b78aa06 100644
--- a/libs/Utils.php
+++ b/libs/Utils.php
@@ -157,17 +157,17 @@ class Utils
     /**
      * 缩略图
      */
-    public static function postBanner($post){
+    public static function postBanner($post, $random){
 		if($post->fields->banner && $post->fields->banner=!''): 
 			$banner = $post->fields->banner; 
 		else: 
-			if($post->options->randomBanner==''){
+			if($random==''){
                 $banner = '/usr/themes/Miracles/images/postbg/';
                 $banner .= srand(mb_strlen($post->title));
                 $banner .= rand(1,15).'.jpg';
 		    }
 		    else{
-		        $banner_url = explode(',',$post->options->randomBanner);
+		        $banner_url = explode(',',$random);
                 $banner = $banner_url[mt_rand(0,count($banner_url)-1)].'\"';
             }
         endif;
@@ -195,4 +195,57 @@ class Utils
 
         echo $banner;
     }
+
+    /**
+     * 压缩 HTML
+     * thanks https://www.jiangxu.site/concerning-how-to-typecho-integrated-html-compression.html
+     */
+    public static function compressHtml($html_source) {
+        $chunks = preg_split('/(<!--<nocompress>-->.*?<!--<\/nocompress>-->|<nocompress>.*?<\/nocompress>|<pre.*?\/pre>|<textarea.*?\/textarea>|<script.*?\/script>)/msi', $html_source, -1, PREG_SPLIT_DELIM_CAPTURE);
+        $compress = '';
+        foreach ($chunks as $c) {
+            if (strtolower(substr($c, 0, 19)) == '<!--<nocompress>-->') {
+                $c = substr($c, 19, strlen($c) - 19 - 20);
+                $compress .= $c;
+                continue;
+            } else if (strtolower(substr($c, 0, 12)) == '<nocompress>') {
+                $c = substr($c, 12, strlen($c) - 12 - 13);
+                $compress .= $c;
+                continue;
+            } else if (strtolower(substr($c, 0, 4)) == '<pre' || strtolower(substr($c, 0, 9)) == '<textarea') {
+                $compress .= $c;
+                continue;
+            } else if (strtolower(substr($c, 0, 7)) == '<script' && strpos($c, '//') != false && (strpos($c, "\r") !== false || strpos($c, "\n") !== false)) {
+                $tmps = preg_split('/(\r|\n)/ms', $c, -1, PREG_SPLIT_NO_EMPTY);
+                $c = '';
+                foreach ($tmps as $tmp) {
+                    if (strpos($tmp, '//') !== false) {
+                        if (substr(trim($tmp), 0, 2) == '//') {
+                            continue;
+                        }
+                        $chars = preg_split('//', $tmp, -1, PREG_SPLIT_NO_EMPTY);
+                        $is_quot = $is_apos = false;
+                        foreach ($chars as $key => $char) {
+                            if ($char == '"' && $chars[$key - 1] != '\\' && !$is_apos) {
+                                $is_quot = !$is_quot;
+                            } else if ($char == '\'' && $chars[$key - 1] != '\\' && !$is_quot) {
+                                $is_apos = !$is_apos;
+                            } else if ($char == '/' && $chars[$key + 1] == '/' && !$is_quot && !$is_apos) {
+                                $tmp = substr($tmp, 0, $key);
+                                break;
+                            }
+                        }
+                    }
+                    $c .= $tmp;
+                }
+            }
+            $c = preg_replace('/[\\n\\r\\t]+/', ' ', $c);
+            $c = preg_replace('/\\s{2,}/', ' ', $c);
+            $c = preg_replace('/>\\s</', '> <', $c);
+            $c = preg_replace('/\\/\\*.*?\\*\\//i', '', $c);
+            $c = preg_replace('/<!--[^!]*-->/', '', $c);
+            $compress .= $c;
+        }
+        return $compress;
+    }
 }
\ No newline at end of file
-- 
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