add bing pic api

inc/classes/Images.php

@@ -149,6 +149,12 @@ class Images
             $imgurl = str_replace(get_template_directory(), get_template_directory_uri(), $imgurl);
         } elseif (akina_option('cover_cdn_options') == "type_3") {
             $imgurl = akina_option('cover_cdn');
+        } elseif (akina_option('cover_cdn_options') == "type_4") {
+            // bing 图片
+            $xml = file_get_contents('https://cn.bing.com/HPImageArchive.aspx?n=1&idx='.$mdx_img_bing);
+            if(preg_match("/<url>(.+?)<\/url>/is",$xml,$matches)){
+                $imgurl='https://cn.bing.com'.str_replace('1366x768','1920x1080',$matches[1]);
+            }
         } else {
             global $sakura_image_array;
             $img_array = json_decode($sakura_image_array, true);

languages/zh_CN.po

@@ -2,14 +2,14 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Sakura\n"
 "POT-Creation-Date: 2020-04-06 17:55+0800\n"
-"PO-Revision-Date: 2020-04-06 17:56+0800\n"
+"PO-Revision-Date: 2020-06-04 15:46+0800\n"
 "Last-Translator: \n"
 "Language-Team: \n"
 "Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
-"X-Generator: Poedit 2.3\n"
+"X-Generator: Poedit 2.3.1\n"
 "X-Poedit-Basepath: ..\n"
 "Plural-Forms: nplurals=1; plural=0;\n"
 "X-Poedit-Flags-xgettext: --add-comments=translators:\n"
@@ -849,6 +849,10 @@ msgstr "内置原图随机图（默认）"
 msgid "custom api (advanced)"
 msgstr "外部随机图API"
 
+#: options.php:386
+msgid "bing one pic everyday"
+msgstr "Bing每日一图"
+
 #: options.php:390
 msgid "Cover images url"
 msgstr "封面图片库url"

options.php

@@ -383,6 +383,7 @@ function optionsframework_options()
             'type_1' => __('webp images (optimization)', 'sakura'), /*webp优化随机图*/
             'type_2' => __('built-in api (default)', 'sakura'), /*内置原图随机图*/
             'type_3' => __('custom api (advanced)', 'sakura'), /*外部随机图API*/
+            'type_4' => __('bing one pic everyday', 'sakura'), /*Bing每日一图API*/
         )
     );