1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <hicn/transport/auth/common.h>
#include <implementation/socket.h>
#include <protocols/incremental_indexer_bytestream.h>
#include <utils/suffix_strategy.h>
#include <list>
namespace transport {
namespace protocol {
class ManifestIncrementalIndexer : public IncrementalIndexer {
static constexpr double alpha = 0.3;
public:
using SuffixQueue = std::queue<uint32_t>;
using InterestContentPair =
std::tuple<core::Interest::Ptr, core::ContentObject::Ptr, bool>;
ManifestIncrementalIndexer(implementation::ConsumerSocket *icn_socket,
TransportProtocol *transport);
ManifestIncrementalIndexer(IncrementalIndexer &&indexer)
: IncrementalIndexer(std::move(indexer)),
suffix_strategy_(utils::SuffixStrategyFactory::getSuffixStrategy(
core::NextSegmentCalculationStrategy::INCREMENTAL,
next_download_suffix_, 0)) {
for (uint32_t i = first_suffix_; i < next_download_suffix_; i++) {
suffix_queue_.push(i);
}
}
virtual ~ManifestIncrementalIndexer() = default;
void reset() override;
void onContentObject(core::Interest &interest,
core::ContentObject &content_object,
bool reassembly) override;
uint32_t checkNextSuffix() override;
uint32_t getNextSuffix() override;
uint32_t getNextReassemblySegment() override;
bool isFinalSuffixDiscovered() override;
uint32_t getFinalSuffix() override;
protected:
std::unique_ptr<utils::SuffixStrategy> suffix_strategy_;
SuffixQueue suffix_queue_;
// Hash verification
auth::Verifier::SuffixMap suffix_map_;
std::unordered_map<auth::Suffix, InterestContentPair> unverified_segments_;
private:
void onUntrustedManifest(core::Interest &interest,
core::ContentObject &content_object,
bool reassembly);
void processTrustedManifest(core::Interest &interest,
std::unique_ptr<ContentObjectManifest> manifest,
bool reassembly);
void onUntrustedContentObject(core::Interest &interest,
core::ContentObject &content_object,
bool reassembly);
void applyPolicy(core::Interest &interest,
core::ContentObject &content_object, bool reassembly,
auth::VerificationPolicy policy);
};
} // end namespace protocol
} // end namespace transport
|
