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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "chrome/browser/webdata/autofill_entry.h" | |
6 | |
7 #include <algorithm> | |
8 #include <set> | |
9 | |
10 #include "base/logging.h" | |
11 #include "base/utf_string_conversions.h" | |
12 | |
13 namespace { | |
14 | |
15 // The period after which Autofill entries should expire in days. | |
16 const int64 kExpirationPeriodInDays = 60; | |
17 | |
18 } // namespace | |
19 | |
20 AutofillKey::AutofillKey() {} | |
21 | |
22 AutofillKey::AutofillKey(const string16& name, const string16& value) | |
23 : name_(name), | |
24 value_(value) { | |
25 } | |
26 | |
27 AutofillKey::AutofillKey(const char* name, const char* value) | |
28 : name_(UTF8ToUTF16(name)), | |
29 value_(UTF8ToUTF16(value)) { | |
30 } | |
31 | |
32 AutofillKey::AutofillKey(const AutofillKey& key) | |
33 : name_(key.name()), | |
34 value_(key.value()) { | |
35 } | |
36 | |
37 AutofillKey::~AutofillKey() {} | |
38 | |
39 bool AutofillKey::operator==(const AutofillKey& key) const { | |
40 return name_ == key.name() && value_ == key.value(); | |
41 } | |
42 | |
43 bool AutofillKey::operator<(const AutofillKey& key) const { | |
44 int diff = name_.compare(key.name()); | |
45 if (diff < 0) { | |
46 return true; | |
47 } else if (diff == 0) { | |
48 return value_.compare(key.value()) < 0; | |
49 } else { | |
50 return false; | |
51 } | |
52 } | |
53 | |
54 AutofillEntry::AutofillEntry(const AutofillKey& key, | |
55 const std::vector<base::Time>& timestamps) | |
56 : key_(key) { | |
57 timestamps_culled_ = CullTimeStamps(timestamps, ×tamps_); | |
58 } | |
59 | |
60 AutofillEntry::~AutofillEntry() {} | |
61 | |
62 bool AutofillEntry::operator==(const AutofillEntry& entry) const { | |
63 if (!(key_ == entry.key())) | |
64 return false; | |
65 | |
66 if (timestamps_.size() != entry.timestamps().size()) | |
67 return false; | |
68 | |
69 std::set<base::Time> other_timestamps(entry.timestamps().begin(), | |
70 entry.timestamps().end()); | |
71 for (size_t i = 0; i < timestamps_.size(); i++) { | |
72 if (other_timestamps.count(timestamps_[i]) == 0) | |
73 return false; | |
74 } | |
75 | |
76 return true; | |
77 } | |
78 | |
79 bool AutofillEntry::operator<(const AutofillEntry& entry) const { | |
80 return key_ < entry.key(); | |
81 } | |
82 | |
83 bool AutofillEntry::IsExpired() const { | |
84 base::Time time = ExpirationTime(); | |
85 // TODO(georgey): add DCHECK(!timestamps_.empty()) after conversion of the db | |
86 // is complete. | |
87 return (timestamps_.empty() || timestamps_.back() < time); | |
88 } | |
89 | |
90 // static | |
91 base::Time AutofillEntry::ExpirationTime() { | |
92 return base::Time::Now() - base::TimeDelta::FromDays(kExpirationPeriodInDays); | |
93 } | |
94 | |
95 // Culls the list of timestamps to the first and last used. | |
96 // If sync is enabled, at every browser restart, sync will do a match up of all | |
97 // autofill items on the server with all items on the web db. When webdb loads | |
98 // all the items in memory(for sync to process. The method is | |
99 // |GetAllAutofillEntries|) they will pass through this method for culling. If | |
100 // sync finds any of these items were culled it will updates the server AND the | |
101 // web db with these new timestamps. However after restart if an autofill item | |
102 // exceeds the |kMaxAutofillTimeStamps| it will NOT be written to web db until | |
103 // restart. But sync when uploading to the server will only upload this culled | |
104 // list. Meaning until restart there will be mis-match in timestamps but | |
105 // it should correct itself at startup. | |
106 bool AutofillEntry::CullTimeStamps(const std::vector<base::Time>& source, | |
107 std::vector<base::Time>* result) { | |
108 DCHECK(result); | |
109 DCHECK(&source != result); | |
110 | |
111 // First copy the source to result. | |
112 result->clear(); | |
113 | |
114 if (source.size() <= 2) { | |
115 result->insert(result->begin(), source.begin(), source.end()); | |
116 return false; | |
117 } | |
118 | |
119 result->push_back(source.front()); | |
120 result->push_back(source.back()); | |
121 | |
122 DVLOG(1) << "Culling timestamps. Current count is : " << source.size(); | |
123 | |
124 return true; | |
125 } | |
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