chrome/browser/autocomplete/shortcuts_database.cc

   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/autocomplete/shortcuts_database.h"
   6
   7 #include <string>
   8
   9 #include "base/guid.h"
  10 #include "base/logging.h"
  11 #include "base/strings/stringprintf.h"
  12 #include "base/time/time.h"
  13 #include "components/omnibox/autocomplete_match_type.h"
  14 #include "sql/meta_table.h"
  15 #include "sql/statement.h"
  16 #include "sql/transaction.h"
  17 #include "ui/base/page_transition_types.h"
  18
  19
  20 // Helpers --------------------------------------------------------------------
  21
  22 namespace {
  23
  24 // Current version number. We write databases at the "current" version number,
  25 // but any previous version that can read the "compatible" one can make do with
  26 // our database without *too* many bad effects.
  27 const int kCurrentVersionNumber = 1;
  28 const int kCompatibleVersionNumber = 1;
  29
  30 void BindShortcutToStatement(const ShortcutsDatabase::Shortcut& shortcut,
  31                              sql::Statement* s) {
  32   DCHECK(base::IsValidGUID(shortcut.id));
  33   s->BindString(0, shortcut.id);
  34   s->BindString16(1, shortcut.text);
  35   s->BindString16(2, shortcut.match_core.fill_into_edit);
  36   s->BindString(3, shortcut.match_core.destination_url.spec());
  37   s->BindString16(4, shortcut.match_core.contents);
  38   s->BindString(5, shortcut.match_core.contents_class);
  39   s->BindString16(6, shortcut.match_core.description);
  40   s->BindString(7, shortcut.match_core.description_class);
  41   s->BindInt(8, shortcut.match_core.transition);
  42   s->BindInt(9, shortcut.match_core.type);
  43   s->BindString16(10, shortcut.match_core.keyword);
  44   s->BindInt64(11, shortcut.last_access_time.ToInternalValue());
  45   s->BindInt(12, shortcut.number_of_hits);
  46 }
  47
  48 bool DeleteShortcut(const char* field_name,
  49                     const std::string& id,
  50                     sql::Connection& db) {
  51   sql::Statement s(db.GetUniqueStatement(
  52       base::StringPrintf("DELETE FROM omni_box_shortcuts WHERE %s = ?",
  53                          field_name).c_str()));
  54   s.BindString(0, id);
  55   return s.Run();
  56 }
  57
  58 }  // namespace
  59
  60 // ShortcutsDatabase::Shortcut::MatchCore -------------------------------------
  61
  62 ShortcutsDatabase::Shortcut::MatchCore::MatchCore(
  63     const base::string16& fill_into_edit,
  64     const GURL& destination_url,
  65     const base::string16& contents,
  66     const std::string& contents_class,
  67     const base::string16& description,
  68     const std::string& description_class,
  69     int transition,
  70     int type,
  71     const base::string16& keyword)
  72     : fill_into_edit(fill_into_edit),
  73       destination_url(destination_url),
  74       contents(contents),
  75       contents_class(contents_class),
  76       description(description),
  77       description_class(description_class),
  78       transition(transition),
  79       type(type),
  80       keyword(keyword) {
  81 }
  82
  83 ShortcutsDatabase::Shortcut::MatchCore::~MatchCore() {
  84 }
  85
  86 // ShortcutsDatabase::Shortcut ------------------------------------------------
  87
  88 ShortcutsDatabase::Shortcut::Shortcut(
  89     const std::string& id,
  90     const base::string16& text,
  91     const MatchCore& match_core,
  92     const base::Time& last_access_time,
  93     int number_of_hits)
  94     : id(id),
  95       text(text),
  96       match_core(match_core),
  97       last_access_time(last_access_time),
  98       number_of_hits(number_of_hits) {
  99 }
 100
 101 ShortcutsDatabase::Shortcut::Shortcut()
 102     : match_core(base::string16(), GURL(), base::string16(), std::string(),
 103                  base::string16(), std::string(), 0, 0, base::string16()),
 104       last_access_time(base::Time::Now()),
 105       number_of_hits(0) {
 106 }
 107
 108 ShortcutsDatabase::Shortcut::~Shortcut() {
 109 }
 110
 111
 112 // ShortcutsDatabase ----------------------------------------------------------
 113
 114 ShortcutsDatabase::ShortcutsDatabase(const base::FilePath& database_path)
 115     : database_path_(database_path) {
 116 }
 117
 118 bool ShortcutsDatabase::Init() {
 119   db_.set_histogram_tag("Shortcuts");
 120
 121   // Set the database page size to something a little larger to give us
 122   // better performance (we're typically seek rather than bandwidth limited).
 123   // This only has an effect before any tables have been created, otherwise
 124   // this is a NOP. Must be a power of 2 and a max of 8192.
 125   db_.set_page_size(4096);
 126
 127   // Run the database in exclusive mode. Nobody else should be accessing the
 128   // database while we're running, and this will give somewhat improved perf.
 129   db_.set_exclusive_locking();
 130
 131   // Attach the database to our index file.
 132   return db_.Open(database_path_) && EnsureTable();
 133 }
 134
 135 bool ShortcutsDatabase::AddShortcut(const Shortcut& shortcut) {
 136   sql::Statement s(db_.GetCachedStatement(
 137       SQL_FROM_HERE,
 138       "INSERT INTO omni_box_shortcuts (id, text, fill_into_edit, url, "
 139           "contents, contents_class, description, description_class, "
 140           "transition, type, keyword, last_access_time, number_of_hits) "
 141           "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)"));
 142   BindShortcutToStatement(shortcut, &s);
 143   return s.Run();
 144 }
 145
 146 bool ShortcutsDatabase::UpdateShortcut(const Shortcut& shortcut) {
 147   sql::Statement s(db_.GetCachedStatement(
 148       SQL_FROM_HERE,
 149       "UPDATE omni_box_shortcuts SET id=?, text=?, fill_into_edit=?, url=?, "
 150           "contents=?, contents_class=?, description=?, description_class=?, "
 151           "transition=?, type=?, keyword=?, last_access_time=?, "
 152           "number_of_hits=? WHERE id=?"));
 153   BindShortcutToStatement(shortcut, &s);
 154   s.BindString(13, shortcut.id);
 155   return s.Run();
 156 }
 157
 158 bool ShortcutsDatabase::DeleteShortcutsWithIDs(
 159     const ShortcutIDs& shortcut_ids) {
 160   bool success = true;
 161   db_.BeginTransaction();
 162   for (ShortcutIDs::const_iterator it(shortcut_ids.begin());
 163        it != shortcut_ids.end(); ++it) {
 164     success &= DeleteShortcut("id", *it, db_);
 165   }
 166   db_.CommitTransaction();
 167   return success;
 168 }
 169
 170 bool ShortcutsDatabase::DeleteShortcutsWithURL(
 171     const std::string& shortcut_url_spec) {
 172   return DeleteShortcut("url", shortcut_url_spec, db_);
 173 }
 174
 175 bool ShortcutsDatabase::DeleteAllShortcuts() {
 176   if (!db_.Execute("DELETE FROM omni_box_shortcuts"))
 177     return false;
 178
 179   ignore_result(db_.Execute("VACUUM"));
 180   return true;
 181 }
 182
 183 void ShortcutsDatabase::LoadShortcuts(GuidToShortcutMap* shortcuts) {
 184   DCHECK(shortcuts);
 185   sql::Statement s(db_.GetCachedStatement(
 186       SQL_FROM_HERE,
 187       "SELECT id, text, fill_into_edit, url, contents, contents_class, "
 188           "description, description_class, transition, type, keyword, "
 189           "last_access_time, number_of_hits FROM omni_box_shortcuts"));
 190
 191   shortcuts->clear();
 192   while (s.Step()) {
 193     shortcuts->insert(std::make_pair(
 194         s.ColumnString(0),
 195         Shortcut(
 196             s.ColumnString(0),            // id
 197             s.ColumnString16(1),          // text
 198             Shortcut::MatchCore(
 199                 s.ColumnString16(2),      // fill_into_edit
 200                 GURL(s.ColumnString(3)),  // destination_url
 201                 s.ColumnString16(4),      // contents
 202                 s.ColumnString(5),        // contents_class
 203                 s.ColumnString16(6),      // description
 204                 s.ColumnString(7),        // description_class
 205                 s.ColumnInt(8),           // transition
 206                 s.ColumnInt(9),           // type
 207                 s.ColumnString16(10)),    // keyword
 208             base::Time::FromInternalValue(s.ColumnInt64(11)),
 209                                           // last_access_time
 210             s.ColumnInt(12))));           // number_of_hits
 211   }
 212 }
 213
 214 ShortcutsDatabase::~ShortcutsDatabase() {
 215 }
 216
 217 bool ShortcutsDatabase::EnsureTable() {
 218   if (!db_.DoesTableExist("omni_box_shortcuts")) {
 219     return db_.Execute(
 220         "CREATE TABLE omni_box_shortcuts (id VARCHAR PRIMARY KEY, "
 221             "text VARCHAR, fill_into_edit VARCHAR, url VARCHAR, "
 222             "contents VARCHAR, contents_class VARCHAR, description VARCHAR, "
 223             "description_class VARCHAR, transition INTEGER, type INTEGER, "
 224             "keyword VARCHAR, last_access_time INTEGER, "
 225             "number_of_hits INTEGER)");
 226   }
 227
 228   // The first version of the shortcuts table lacked the fill_into_edit,
 229   // transition, type, and keyword columns.
 230   if (!db_.DoesColumnExist("omni_box_shortcuts", "fill_into_edit")) {
 231     // Perform the upgrade in a transaction to ensure it doesn't happen
 232     // incompletely.
 233     sql::Transaction transaction(&db_);
 234     if (!(transaction.Begin() &&
 235         db_.Execute("ALTER TABLE omni_box_shortcuts "
 236             "ADD COLUMN fill_into_edit VARCHAR") &&
 237         db_.Execute("UPDATE omni_box_shortcuts SET fill_into_edit = url") &&
 238         db_.Execute("ALTER TABLE omni_box_shortcuts "
 239             "ADD COLUMN transition INTEGER") &&
 240         db_.Execute(base::StringPrintf(
 241             "UPDATE omni_box_shortcuts SET transition = %d",
 242             static_cast<int>(ui::PAGE_TRANSITION_TYPED)).c_str()) &&
 243         db_.Execute("ALTER TABLE omni_box_shortcuts ADD COLUMN type INTEGER") &&
 244         db_.Execute(base::StringPrintf(
 245             "UPDATE omni_box_shortcuts SET type = %d",
 246             static_cast<int>(AutocompleteMatchType::HISTORY_TITLE)).c_str()) &&
 247         db_.Execute("ALTER TABLE omni_box_shortcuts "
 248             "ADD COLUMN keyword VARCHAR") &&
 249         transaction.Commit())) {
 250       return false;
 251     }
 252   }
 253
 254   if (!sql::MetaTable::DoesTableExist(&db_)) {
 255     meta_table_.Init(&db_, kCurrentVersionNumber, kCompatibleVersionNumber);
 256     sql::Transaction transaction(&db_);
 257     if (!(transaction.Begin() &&
 258       // Migrate old SEARCH_OTHER_ENGINE values to the new type value.
 259       db_.Execute(base::StringPrintf("UPDATE omni_box_shortcuts "
 260           "SET type = 13 WHERE type = 9").c_str()) &&
 261       // Migrate old EXTENSION_APP values to the new type value.
 262       db_.Execute(base::StringPrintf("UPDATE omni_box_shortcuts "
 263            "SET type = 14 WHERE type = 10").c_str()) &&
 264       // Migrate old CONTACT values to the new type value.
 265       db_.Execute(base::StringPrintf("UPDATE omni_box_shortcuts "
 266            "SET type = 15 WHERE type = 11").c_str()) &&
 267       // Migrate old BOOKMARK_TITLE values to the new type value.
 268       db_.Execute(base::StringPrintf("UPDATE omni_box_shortcuts "
 269            "SET type = 16 WHERE type = 12").c_str()) &&
 270       transaction.Commit())) {
 271       return false;
 272     }
 273   }
 274   return true;
 275 }