aboutsummaryrefslogtreecommitdiff
path: root/src/nix/sigs.cc
blob: bcc46c3e7d4f1c08c1f2db8651a5c9e43cb867eb (plain)
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
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
#include "affinity.hh" // FIXME
#include "command.hh"
#include "progress-bar.hh"
#include "shared.hh"
#include "store-api.hh"
#include "thread-pool.hh"

#include <atomic>

using namespace nix;

struct CmdCopySigs : StorePathsCommand
{
    Strings substituterUris;

    CmdCopySigs()
    {
        mkFlag('s', "substituter", {"store-uri"}, "use signatures from specified store", 1,
            [&](Strings ss) { substituterUris.push_back(ss.front()); });
    }

    std::string name() override
    {
        return "copy-sigs";
    }

    std::string description() override
    {
        return "copy path signatures from substituters (like binary caches)";
    }

    void run(ref<Store> store, Paths storePaths) override
    {
        restoreAffinity(); // FIXME

        if (substituterUris.empty())
            throw UsageError("you must specify at least one substituter using ‘-s’");

        // FIXME: factor out commonality with MixVerify.
        std::vector<ref<Store>> substituters;
        for (auto & s : substituterUris)
            substituters.push_back(openStoreAt(s));

        ProgressBar progressBar;

        ThreadPool pool;

        std::atomic<size_t> done{0};
        std::atomic<size_t> added{0};

        auto showProgress = [&]() {
            return (format("[%d/%d done]") % done % storePaths.size()).str();
        };

        progressBar.updateStatus(showProgress());

        auto doPath = [&](const Path & storePath) {
            auto activity(progressBar.startActivity(format("getting signatures for ‘%s’") % storePath));

            checkInterrupt();

            auto info = store->queryPathInfo(storePath);

            StringSet newSigs;

            for (auto & store2 : substituters) {
                if (!store2->isValidPath(storePath)) continue;
                auto info2 = store2->queryPathInfo(storePath);

                /* Don't import signatures that don't match this
                   binary. */
                if (info.narHash != info2.narHash ||
                    info.narSize != info2.narSize ||
                    info.references != info2.references)
                    continue;

                for (auto & sig : info2.sigs)
                    if (!info.sigs.count(sig))
                        newSigs.insert(sig);
            }

            if (!newSigs.empty()) {
                store->addSignatures(storePath, newSigs);
                added += newSigs.size();
            }

            done++;
            progressBar.updateStatus(showProgress());
        };

        for (auto & storePath : storePaths)
            pool.enqueue(std::bind(doPath, storePath));

        pool.process();

        progressBar.done();

        printMsg(lvlInfo, format("imported %d signatures") % added);
    }
};

static RegisterCommand r1(make_ref<CmdCopySigs>());

struct CmdQueryPathSigs : StorePathsCommand
{
    CmdQueryPathSigs()
    {
    }

    std::string name() override
    {
        return "query-path-sigs";
    }

    std::string description() override
    {
        return "print store path signatures";
    }

    void run(ref<Store> store, Paths storePaths) override
    {
        for (auto & storePath : storePaths) {
            auto info = store->queryPathInfo(storePath);
            std::cout << storePath << " ";
            if (info.ultimate) std::cout << "ultimate ";
            for (auto & sig : info.sigs)
                std::cout << sig << " ";
            std::cout << "\n";
        }
    }
};

static RegisterCommand r2(make_ref<CmdQueryPathSigs>());

struct CmdSignPaths : StorePathsCommand
{
    Path secretKeyFile;

    CmdSignPaths()
    {
        mkFlag('k', "key-file", {"file"}, "file containing the secret signing key", &secretKeyFile);
    }

    std::string name() override
    {
        return "sign-paths";
    }

    std::string description() override
    {
        return "sign the specified paths";
    }

    void run(ref<Store> store, Paths storePaths) override
    {
        if (secretKeyFile.empty())
            throw UsageError("you must specify a secret key file using ‘-k’");

        SecretKey secretKey(readFile(secretKeyFile));

        size_t added{0};

        for (auto & storePath : storePaths) {
            auto info = store->queryPathInfo(storePath);

            auto info2(info);
            info2.sigs.clear();
            info2.sign(secretKey);
            assert(!info2.sigs.empty());

            if (!info.sigs.count(*info2.sigs.begin())) {
                store->addSignatures(storePath, info2.sigs);
                added++;
            }
        }

        printMsg(lvlInfo, format("added %d signatures") % added);
    }
};

static RegisterCommand r3(make_ref<CmdSignPaths>());