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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 "components/autofill/browser/webdata/autofill_entry.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <set> | |
| 9 | |
| 10 #include "base/logging.h" | |
| 11 #include "base/strings/utf_string_conversions.h" | |
| 12 | |
| 13 namespace autofill { | |
| 14 namespace { | |
| 15 | |
| 16 // The period after which Autofill entries should expire in days. | |
| 17 const int64 kExpirationPeriodInDays = 60; | |
| 18 | |
| 19 } // namespace | |
| 20 | |
| 21 AutofillKey::AutofillKey() {} | |
| 22 | |
| 23 AutofillKey::AutofillKey(const base::string16& name, | |
| 24 const base::string16& value) | |
| 25 : name_(name), | |
| 26 value_(value) { | |
| 27 } | |
| 28 | |
| 29 AutofillKey::AutofillKey(const char* name, const char* value) | |
| 30 : name_(UTF8ToUTF16(name)), | |
| 31 value_(UTF8ToUTF16(value)) { | |
| 32 } | |
| 33 | |
| 34 AutofillKey::AutofillKey(const AutofillKey& key) | |
| 35 : name_(key.name()), | |
| 36 value_(key.value()) { | |
| 37 } | |
| 38 | |
| 39 AutofillKey::~AutofillKey() {} | |
| 40 | |
| 41 bool AutofillKey::operator==(const AutofillKey& key) const { | |
| 42 return name_ == key.name() && value_ == key.value(); | |
| 43 } | |
| 44 | |
| 45 bool AutofillKey::operator<(const AutofillKey& key) const { | |
| 46 int diff = name_.compare(key.name()); | |
| 47 if (diff < 0) { | |
| 48 return true; | |
| 49 } else if (diff == 0) { | |
| 50 return value_.compare(key.value()) < 0; | |
| 51 } else { | |
| 52 return false; | |
| 53 } | |
| 54 } | |
| 55 | |
| 56 AutofillEntry::AutofillEntry(const AutofillKey& key, | |
| 57 const std::vector<base::Time>& timestamps) | |
| 58 : key_(key) { | |
| 59 timestamps_culled_ = CullTimeStamps(timestamps, ×tamps_); | |
| 60 } | |
| 61 | |
| 62 AutofillEntry::~AutofillEntry() {} | |
| 63 | |
| 64 bool AutofillEntry::operator==(const AutofillEntry& entry) const { | |
| 65 if (!(key_ == entry.key())) | |
| 66 return false; | |
| 67 | |
| 68 if (timestamps_.size() != entry.timestamps().size()) | |
| 69 return false; | |
| 70 | |
| 71 std::set<base::Time> other_timestamps(entry.timestamps().begin(), | |
| 72 entry.timestamps().end()); | |
| 73 for (size_t i = 0; i < timestamps_.size(); i++) { | |
| 74 if (other_timestamps.count(timestamps_[i]) == 0) | |
| 75 return false; | |
| 76 } | |
| 77 | |
| 78 return true; | |
| 79 } | |
| 80 | |
| 81 bool AutofillEntry::operator<(const AutofillEntry& entry) const { | |
| 82 return key_ < entry.key(); | |
| 83 } | |
| 84 | |
| 85 bool AutofillEntry::IsExpired() const { | |
| 86 base::Time time = ExpirationTime(); | |
| 87 // TODO(georgey): add DCHECK(!timestamps_.empty()) after conversion of the db | |
| 88 // is complete. | |
| 89 return (timestamps_.empty() || timestamps_.back() < time); | |
| 90 } | |
| 91 | |
| 92 // static | |
| 93 base::Time AutofillEntry::ExpirationTime() { | |
| 94 return base::Time::Now() - base::TimeDelta::FromDays(kExpirationPeriodInDays); | |
| 95 } | |
| 96 | |
| 97 // Culls the list of timestamps to the first and last used. | |
| 98 // If sync is enabled, at every browser restart, sync will do a match up of all | |
| 99 // autofill items on the server with all items on the web db. When webdb loads | |
| 100 // all the items in memory(for sync to process. The method is | |
| 101 // |GetAllAutofillEntries|) they will pass through this method for culling. If | |
| 102 // sync finds any of these items were culled it will updates the server AND the | |
| 103 // web db with these new timestamps. However after restart if an autofill item | |
| 104 // exceeds the |kMaxAutofillTimeStamps| it will NOT be written to web db until | |
| 105 // restart. But sync when uploading to the server will only upload this culled | |
| 106 // list. Meaning until restart there will be mis-match in timestamps but | |
| 107 // it should correct itself at startup. | |
| 108 bool AutofillEntry::CullTimeStamps(const std::vector<base::Time>& source, | |
| 109 std::vector<base::Time>* result) { | |
| 110 DCHECK(result); | |
| 111 DCHECK(&source != result); | |
| 112 | |
| 113 // First copy the source to result. | |
| 114 result->clear(); | |
| 115 | |
| 116 if (source.size() <= 2) { | |
| 117 result->insert(result->begin(), source.begin(), source.end()); | |
| 118 return false; | |
| 119 } | |
| 120 | |
| 121 result->push_back(source.front()); | |
| 122 result->push_back(source.back()); | |
| 123 | |
| 124 DVLOG(1) << "Culling timestamps. Current count is : " << source.size(); | |
| 125 | |
| 126 return true; | |
| 127 } | |
| 128 | |
| 129 } // namespace autofill | |
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