解决了语音上传到问题，接下来要解决下载播放问题

Pods/Qiniu/QiniuSDK/Storage/QNUpToken.m

@@ -0,0 +1,103 @@
+//
+//  QNUpToken.m
+//  QiniuSDK
+//
+//  Created by bailong on 15/6/7.
+//  Copyright (c) 2015年 Qiniu. All rights reserved.
+//
+
+#import "QNUrlSafeBase64.h"
+#import "QNUpToken.h"
+
+#define kQNPolicyKeyScope @"scope"
+#define kQNPolicyKeyDeadline @"deadline"
+#define kQNPolicyKeyReturnUrl @"returnUrl"
+@interface QNUpToken ()
+
+- (instancetype)init:(NSDictionary *)policy token:(NSString *)token;
+
+@end
+
+@implementation QNUpToken
+
++ (instancetype)getInvalidToken {
+    QNUpToken *token = [[QNUpToken alloc] init];
+    token->_deadline = -1;
+    return token;
+}
+
+- (instancetype)init:(NSDictionary *)policy token:(NSString *)token {
+    if (self = [super init]) {
+        _token = token;
+        _access = [self getAccess];
+        _bucket = [self getBucket:policy];
+        _deadline = [policy[kQNPolicyKeyDeadline] longValue];
+        _hasReturnUrl = (policy[kQNPolicyKeyReturnUrl] != nil);
+    }
+
+    return self;
+}
+
+- (NSString *)getAccess {
+
+    NSRange range = [_token rangeOfString:@":" options:NSCaseInsensitiveSearch];
+    return [_token substringToIndex:range.location];
+}
+
+- (NSString *)getBucket:(NSDictionary *)info {
+
+    NSString *scope = [info objectForKey:kQNPolicyKeyScope];
+    if (!scope || [scope isKindOfClass:[NSNull class]]) {
+        return @"";
+    }
+
+    NSRange range = [scope rangeOfString:@":"];
+    if (range.location == NSNotFound) {
+        return scope;
+    }
+    return [scope substringToIndex:range.location];
+}
+
++ (instancetype)parse:(NSString *)token {
+    if (token == nil) {
+        return nil;
+    }
+    NSArray *array = [token componentsSeparatedByString:@":"];
+    if (array == nil || array.count != 3) {
+        return nil;
+    }
+
+    NSData *data = [QNUrlSafeBase64 decodeString:array[2]];
+    if (!data) {
+        return nil;
+    }
+    
+    NSError *tmp = nil;
+    NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:&tmp];
+    if (tmp != nil || dict[kQNPolicyKeyScope] == nil || dict[kQNPolicyKeyDeadline] == nil) {
+        return nil;
+    }
+    return [[QNUpToken alloc] init:dict token:token];
+}
+
+- (NSString *)index {
+    return [NSString stringWithFormat:@"%@:%@", _access, _bucket];
+}
+
+- (BOOL)isValid {
+    return _access && _access.length > 0 && _bucket && _bucket.length > 0;
+}
+
+- (BOOL)isValidForDuration:(long)duration {
+    NSDate *date = [NSDate dateWithTimeIntervalSinceNow:duration];
+    return [self isValidBeforeDate:date];
+}
+
+- (BOOL)isValidBeforeDate:(NSDate *)date {
+    if (date == nil) {
+        return NO;
+    }
+    return [date timeIntervalSince1970] < self.deadline;
+}
+
+@end