缓存策略增加“允许读取不完整的Partial Content”选项

web/views/@default/servers/components/cache/createPopup.html

@@ -84,6 +84,13 @@
                     <p class="comment"><pro-warning-label></pro-warning-label><plus-label></plus-label>使用sendfile提升发送缓存文件的效率。</p>
                 </td>
             </tr>
+            <tr>
+                <td class="color-border">允许读取不完整的Partial Content</td>
+                <td>
+                    <checkbox name="enableIncompletePartialContent" checked="checked"></checkbox>
+                    <p class="comment">允许在有一部分内容缓存的情况下读取分区内容，剩余的部分将会自动回源读取。</p>
+                </td>
+            </tr>
             <tr v-show="moreOptionsVisible && policyType == 'file'">
                 <td class="color-border">启用MMAP</td>
                 <td>

web/views/@default/servers/components/cache/policy.html

@@ -58,11 +58,16 @@
             <td class="color-border">缓存硬盘最小空余空间</td>
             <td><size-capacity-view :v-value="cachePolicy.options.minFreeSize"></size-capacity-view></td>
         </tr>
-        <tr v-if="cachePolicy.options != null">
+        <tr v-if="cachePolicy.options.enableIncompletePartialContent">
+            <td class="color-border">允许读取不完整的Partial Content</td>
+            <td>
+                <span class="green">Y</span>
+            </td>
+        </tr>
+        <tr v-if="cachePolicy.options.enableMMAP">
             <td class="color-border">启用MMAP</td>
             <td>
-                <span class="green" v-if="cachePolicy.options.enableMMAP || cachePolicy.options.enableMMAP == null">Y</span>
-                <span class="disabled" v-else>N</span>
+                <span>Y</span>
             </td>
         </tr>
     </tbody>

web/views/@default/servers/components/cache/update.html

@@ -91,6 +91,13 @@
                         <p class="comment"><pro-warning-label></pro-warning-label><plus-label></plus-label>使用sendfile提升发送缓存文件的效率。</p>
                     </td>
                 </tr>
+                <tr>
+                    <td class="color-border">允许读取不完整的Partial Content</td>
+                    <td>
+                        <checkbox name="enableIncompletePartialContent" v-model="cachePolicy.options.enableIncompletePartialContent"></checkbox>
+                        <p class="comment">允许在有一部分内容缓存的情况下读取分区内容，剩余的部分将会自动回源读取。</p>
+                    </td>
+                </tr>
                 <tr>
                     <td class="color-border">启用MMAP</td>
                     <td>

web/views/@default/servers/components/cache/update.js

@@ -13,6 +13,7 @@ Tea.context(function () {
 			let options = this.cachePolicy.options
 			if (options != null && typeof options == "object" && typeof options["dir"] === "undefined") {
 				options["enableMMAP"] = false
+				options["enableIncompletePartialContent"] = true
 				options["dir"] = "/opt/cache"
 				options["memoryPolicy"] = {
 					capacity: {