add policy auto

Author: longbai

src/main/java/com/qiniu/storage/model/Policy.java

@@ -0,0 +1,43 @@
+package com.qiniu.storage.model;
+
+/**
+ * Created by bailong on 16/9/21.
+ */
+
+// 这只是个例子，可以自己创建policy 类使用
+public final class UploadPolicy {
+
+    public final String scope;
+    public final long deadline;
+    public int insertOnly;
+
+    public String endUser;
+
+    public String returnUrl;
+    public String returnBody;
+
+    public String callbackUrl;
+    public String callbackHost;
+    public String callbackBody;
+    public String callbackBodyType;
+    public int callbackFetchKey;
+
+    public String persistentOps;
+    public String persistentNotifyUrl;
+    public String persistentPipeline;
+    public String saveKey;
+
+    public long fsizeMin;
+    public long fsizeLimit;
+
+    public int detectMime;
+
+    public String mimeLimit;
+
+    public int deleteAfterDays;
+
+    public UploadPolicy(String bucket, String key, long expired) {
+        this.scope = key == null ? bucket : bucket + "" + key;
+        this.deadline = System.currentTimeMillis() / 1000 + expired;
+    }
+}

src/main/java/com/qiniu/storage/model/UploadPolicy.java

@@ -263,6 +263,11 @@ public String uploadTokenWithDeadline(String bucket, String key, long deadline,
         return signWithData(StringUtils.utf8Bytes(s));
     }
 
+    public String uploadTokenWithPolicy(Object obj) {
+        String s = Json.encode(obj);
+        return signWithData(StringUtils.utf8Bytes(s));
+    }
+
     public StringMap authorization(String url, byte[] body, String contentType) {
         String authorization = "QBox " + signRequest(url, body, contentType);
         return new StringMap().put("Authorization", authorization);

src/main/java/com/qiniu/util/Auth.java

@@ -1,6 +1,9 @@
 package com.qiniu.util;
 
+import com.google.gson.ExclusionStrategy;
+import com.google.gson.FieldAttributes;
 import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
 import com.google.gson.reflect.TypeToken;
 
 import java.lang.reflect.Type;
@@ -15,6 +18,10 @@ public static String encode(StringMap map) {
         return new Gson().toJson(map.map());
     }
 
+    public static String encode(Object obj) {
+        return new GsonBuilder().serializeNulls().create().toJson(obj);
+    }
+
     public static <T> T decode(String json, Class<T> classOfT) {
         return new Gson().fromJson(json, classOfT);
     }

src/main/java/com/qiniu/util/Json.java

@@ -2,6 +2,7 @@
 
 import com.qiniu.TestConfig;
 import com.qiniu.http.Client;
+import com.qiniu.storage.model.UploadPolicy;
 import org.junit.Test;
 
 import static org.junit.Assert.*;
@@ -56,4 +57,23 @@ public void testUploadToken() {
         // CHECKSTYLE:ON
         assertEquals(exp, token);
     }
+
+    static class Policy{
+        String scope;
+        long deadline;
+        String endUser;
+    }
+
+    @Test
+    public void testUploadToken2() {
+        Policy p = new Policy();
+        p.endUser = "y";
+        p.scope = "1:2";
+        p.deadline = 1234567890L + 3600;
+        String token = TestConfig.dummyAuth.uploadTokenWithPolicy(p);
+        // CHECKSTYLE:OFF
+        String exp = "abcdefghklmnopq:zx3NdMGffQ0JhUlgGSU5oeTx9Nk=:eyJzY29wZSI6IjE6MiIsImRlYWRsaW5lIjoxMjM0NTcxNDkwLCJlbmRVc2VyIjoieSJ9";
+        // CHECKSTYLE:ON
+        assertEquals(exp, token);
+    }
 }