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1 : : // Copyright (c) 2009-2010 Satoshi Nakamoto
2 : : // Copyright (c) 2009-2022 The Bitcoin Core developers
3 : : // Distributed under the MIT software license, see the accompanying
4 : : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
5 : :
6 : : #include <wallet/load.h>
7 : :
8 : : #include <common/args.h>
9 : : #include <interfaces/chain.h>
10 : : #include <scheduler.h>
11 : : #include <util/check.h>
12 : : #include <util/fs.h>
13 : : #include <util/string.h>
14 : : #include <util/translation.h>
15 : : #include <wallet/context.h>
16 : : #include <wallet/spend.h>
17 : : #include <wallet/wallet.h>
18 : : #include <wallet/walletdb.h>
19 : :
20 : : #include <univalue.h>
21 : :
22 : : #include <system_error>
23 : :
24 : : using util::Join;
25 : :
26 : : namespace wallet {
27 : 0 : bool VerifyWallets(WalletContext& context)
28 : : {
29 : 0 : interfaces::Chain& chain = *context.chain;
30 : 0 : ArgsManager& args = *Assert(context.args);
31 : :
32 [ # # # # ]: 0 : if (args.IsArgSet("-walletdir")) {
33 [ # # # # ]: 0 : const fs::path wallet_dir{args.GetPathArg("-walletdir")};
34 [ # # ]: 0 : std::error_code error;
35 : : // The canonical path cleans the path, preventing >1 Berkeley environment instances for the same directory
36 : : // It also lets the fs::exists and fs::is_directory checks below pass on windows, since they return false
37 : : // if a path has trailing slashes, and it strips trailing slashes.
38 [ # # ]: 0 : fs::path canonical_wallet_dir = fs::canonical(wallet_dir, error);
39 [ # # # # ]: 0 : if (error || !fs::exists(canonical_wallet_dir)) {
40 [ # # # # : 0 : chain.initError(strprintf(_("Specified -walletdir \"%s\" does not exist"), fs::PathToString(wallet_dir)));
# # ]
41 : 0 : return false;
42 [ # # # # ]: 0 : } else if (!fs::is_directory(canonical_wallet_dir)) {
43 [ # # # # : 0 : chain.initError(strprintf(_("Specified -walletdir \"%s\" is not a directory"), fs::PathToString(wallet_dir)));
# # ]
44 : 0 : return false;
45 : : // The canonical path transforms relative paths into absolute ones, so we check the non-canonical version
46 [ # # ]: 0 : } else if (!wallet_dir.is_absolute()) {
47 [ # # # # : 0 : chain.initError(strprintf(_("Specified -walletdir \"%s\" is a relative path"), fs::PathToString(wallet_dir)));
# # ]
48 : 0 : return false;
49 : : }
50 [ # # # # : 0 : args.ForceSetArg("-walletdir", fs::PathToString(canonical_wallet_dir));
# # ]
51 : 0 : }
52 : :
53 [ # # # # ]: 0 : LogPrintf("Using wallet directory %s\n", fs::PathToString(GetWalletDir()));
54 : :
55 [ # # ]: 0 : chain.initMessage(_("Verifying wallet(s)…"));
56 : :
57 : : // For backwards compatibility if an unnamed top level wallet exists in the
58 : : // wallets directory, include it in the default list of wallets to load.
59 [ # # # # ]: 0 : if (!args.IsArgSet("wallet")) {
60 [ # # ]: 0 : DatabaseOptions options;
61 : 0 : DatabaseStatus status;
62 [ # # ]: 0 : ReadDatabaseArgs(args, options);
63 [ # # ]: 0 : bilingual_str error_string;
64 : 0 : options.require_existing = true;
65 : 0 : options.verify = false;
66 [ # # # # : 0 : if (MakeWalletDatabase("", options, status, error_string)) {
# # ]
67 : 0 : common::SettingsValue wallets(common::SettingsValue::VARR);
68 [ # # # # ]: 0 : wallets.push_back(""); // Default wallet name is ""
69 : : // Pass write=false because no need to write file and probably
70 : : // better not to. If unnamed wallet needs to be added next startup
71 : : // and the setting is empty, this code will just run again.
72 [ # # # # ]: 0 : chain.overwriteRwSetting("wallet", std::move(wallets), interfaces::SettingsAction::SKIP_WRITE);
73 : 0 : }
74 : 0 : }
75 : :
76 : : // Keep track of each wallet absolute path to detect duplicates.
77 [ # # ]: 0 : std::set<fs::path> wallet_paths;
78 : :
79 [ # # # # : 0 : for (const auto& wallet : chain.getSettingsList("wallet")) {
# # ]
80 [ # # ]: 0 : if (!wallet.isStr()) {
81 [ # # # # ]: 0 : chain.initError(_("Invalid value detected for '-wallet' or '-nowallet'. "
82 : : "'-wallet' requires a string value, while '-nowallet' accepts only '1' to disable all wallets"));
83 : 0 : return false;
84 : : }
85 [ # # ]: 0 : const auto& wallet_file = wallet.get_str();
86 [ # # # # : 0 : const fs::path path = fsbridge::AbsPathJoin(GetWalletDir(), fs::PathFromString(wallet_file));
# # ]
87 : :
88 [ # # # # ]: 0 : if (!wallet_paths.insert(path).second) {
89 [ # # # # ]: 0 : chain.initWarning(strprintf(_("Ignoring duplicate -wallet %s."), wallet_file));
90 : 0 : continue;
91 : : }
92 : :
93 [ # # ]: 0 : DatabaseOptions options;
94 : 0 : DatabaseStatus status;
95 [ # # ]: 0 : ReadDatabaseArgs(args, options);
96 : 0 : options.require_existing = true;
97 : 0 : options.verify = true;
98 [ # # ]: 0 : bilingual_str error_string;
99 [ # # # # ]: 0 : if (!MakeWalletDatabase(wallet_file, options, status, error_string)) {
100 [ # # ]: 0 : if (status == DatabaseStatus::FAILED_NOT_FOUND) {
101 [ # # # # : 0 : chain.initWarning(Untranslated(strprintf("Skipping -wallet path that doesn't exist. %s", error_string.original)));
# # ]
102 [ # # ]: 0 : } else if (status == DatabaseStatus::FAILED_LEGACY_DISABLED) {
103 : : // Skipping legacy wallets as they will not be loaded.
104 : : // This will be properly communicated to the user during the loading process.
105 : 0 : continue;
106 : : } else {
107 [ # # ]: 0 : chain.initError(error_string);
108 : 0 : return false;
109 : : }
110 : : }
111 : 0 : }
112 : :
113 : 0 : return true;
114 : 0 : }
115 : :
116 : 0 : bool LoadWallets(WalletContext& context)
117 : : {
118 : 0 : interfaces::Chain& chain = *context.chain;
119 : 0 : try {
120 [ # # ]: 0 : std::set<fs::path> wallet_paths;
121 [ # # # # : 0 : for (const auto& wallet : chain.getSettingsList("wallet")) {
# # ]
122 [ # # ]: 0 : if (!wallet.isStr()) {
123 [ # # # # ]: 0 : chain.initError(_("Invalid value detected for '-wallet' or '-nowallet'. "
124 : : "'-wallet' requires a string value, while '-nowallet' accepts only '1' to disable all wallets"));
125 : 0 : return false;
126 : : }
127 [ # # ]: 0 : const auto& name = wallet.get_str();
128 [ # # # # : 0 : if (!wallet_paths.insert(fs::PathFromString(name)).second) {
# # ]
129 : 0 : continue;
130 : : }
131 [ # # ]: 0 : DatabaseOptions options;
132 : 0 : DatabaseStatus status;
133 [ # # ]: 0 : ReadDatabaseArgs(*context.args, options);
134 : 0 : options.require_existing = true;
135 : 0 : options.verify = false; // No need to verify, assuming verified earlier in VerifyWallets()
136 [ # # ]: 0 : bilingual_str error;
137 : 0 : std::vector<bilingual_str> warnings;
138 [ # # ]: 0 : std::unique_ptr<WalletDatabase> database = MakeWalletDatabase(name, options, status, error);
139 [ # # ]: 0 : if (!database) {
140 [ # # ]: 0 : if (status == DatabaseStatus::FAILED_NOT_FOUND) continue;
141 [ # # ]: 0 : if (status == DatabaseStatus::FAILED_LEGACY_DISABLED) {
142 : : // Inform user that legacy wallet is not loaded and suggest upgrade options
143 [ # # ]: 0 : chain.initWarning(error);
144 : 0 : continue;
145 : : }
146 : : }
147 [ # # # # ]: 0 : chain.initMessage(_("Loading wallet…"));
148 [ # # # # ]: 0 : std::shared_ptr<CWallet> pwallet = database ? CWallet::Create(context, name, std::move(database), options.create_flags, error, warnings) : nullptr;
149 [ # # # # : 0 : if (!warnings.empty()) chain.initWarning(Join(warnings, Untranslated("\n")));
# # # # #
# ]
150 [ # # ]: 0 : if (!pwallet) {
151 [ # # ]: 0 : chain.initError(error);
152 [ # # ]: 0 : return false;
153 : : }
154 : :
155 [ # # ]: 0 : NotifyWalletLoaded(context, pwallet);
156 [ # # ]: 0 : AddWallet(context, pwallet);
157 : 0 : }
158 : 0 : return true;
159 [ # # ]: 0 : } catch (const std::runtime_error& e) {
160 [ - - - - : 0 : chain.initError(Untranslated(e.what()));
- - ]
161 : 0 : return false;
162 : 0 : }
163 : : }
164 : :
165 : 0 : void StartWallets(WalletContext& context)
166 : : {
167 [ # # ]: 0 : for (const std::shared_ptr<CWallet>& pwallet : GetWallets(context)) {
168 [ # # ]: 0 : pwallet->postInitProcess();
169 : 0 : }
170 : :
171 [ # # ]: 0 : context.scheduler->scheduleEvery([&context] { MaybeResendWalletTxs(context); }, 1min);
172 : 0 : }
173 : :
174 : 0 : void UnloadWallets(WalletContext& context)
175 : : {
176 : 0 : auto wallets = GetWallets(context);
177 [ # # ]: 0 : while (!wallets.empty()) {
178 [ # # ]: 0 : auto wallet = wallets.back();
179 : 0 : wallets.pop_back();
180 : 0 : std::vector<bilingual_str> warnings;
181 [ # # ]: 0 : RemoveWallet(context, wallet, /* load_on_start= */ std::nullopt, warnings);
182 [ # # ]: 0 : WaitForDeleteWallet(std::move(wallet));
183 [ # # ]: 0 : }
184 : 0 : }
185 : : } // namespace wallet
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