feat(view): add cnzz plugin

src/schema/plugin/cnzz.json

@@ -0,0 +1,28 @@
+{
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "$id": "/plugin/cnzz.json",
+    "description": "CNZZ statistics\nhttps://www.umeng.com/web",
+    "type": "object",
+    "properties": {
+        "id": {
+            "type": [
+                "string",
+                "number"
+            ],
+            "description": "CNZZ tracker id",
+            "nullable": true
+        },
+        "web_id": {
+            "type": [
+                "string",
+                "number"
+            ],
+            "description": "CNZZ website id",
+            "nullable": true
+        }
+    },
+    "required": [
+        "id",
+        "web_id"
+    ]
+}

src/view/plugin/cnzz.jsx

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+/**
+ * CNZZ statistics plugin JSX component.
+ * @module view/plugin/cnzz
+ */
+const { Component } = require('inferno');
+const { cacheComponent } = require('../../util/cache');
+
+/**
+ * CNZZ statistics plugin JSX component.
+ *
+ * @see https://developer.umeng.com/docs/67963/detail/68609
+ * @example
+ * <Cnzz id="******" webId="******" />
+ */
+class Cnzz extends Component {
+    render() {
+        const { id, webId } = this.props;
+        return <script src={`https://s9.cnzz.com/z_stat.php?id=${id}&web_id=${webId}`} async={true}></script>;
+    }
+}
+
+/**
+ * Cacheable CNZZ statistics plugin JSX component.
+ * <p>
+ * This class is supposed to be used in combination with the <code>locals</code> hexo filter
+ * ({@link module:hexo/filter/locals}).
+ *
+ * @see module:util/cache.cacheComponent
+ * @example
+ * <Cnzz.Cacheable
+ *     head={false}
+ *     plugin={{ id: '******', web_id: '******' }} />
+ */
+module.exports = cacheComponent(Cnzz, 'plugin.cnzz', props => {
+    const { head, plugin } = props;
+    if (head || !plugin.id || !plugin.web_id) {
+        return null;
+    }
+    return {
+        id: plugin.id,
+        webId: plugin.web_id
+    };
+});