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
|
#include "path-info.hh"
#include "store-api.hh"
namespace nix {
GENERATE_CMP_EXT(
,
UnkeyedValidPathInfo,
me->deriver,
me->narHash,
me->references,
me->registrationTime,
me->narSize,
//me->id,
me->ultimate,
me->sigs,
me->ca);
GENERATE_CMP_EXT(
,
ValidPathInfo,
me->path,
static_cast<const UnkeyedValidPathInfo &>(*me));
std::string ValidPathInfo::fingerprint(const Store & store) const
{
if (narSize == 0)
throw Error("cannot calculate fingerprint of path '%s' because its size is not known",
store.printStorePath(path));
return
"1;" + store.printStorePath(path) + ";"
+ narHash.to_string(Base::Base32, true) + ";"
+ std::to_string(narSize) + ";"
+ concatStringsSep(",", store.printStorePathSet(references));
}
void ValidPathInfo::sign(const Store & store, const SecretKey & secretKey)
{
sigs.insert(secretKey.signDetached(fingerprint(store)));
}
std::optional<ContentAddressWithReferences> ValidPathInfo::contentAddressWithReferences() const
{
if (! ca)
return std::nullopt;
return std::visit(overloaded {
[&](const TextIngestionMethod &) -> ContentAddressWithReferences {
assert(references.count(path) == 0);
return TextInfo {
.hash = ca->hash,
.references = references,
};
},
[&](const FileIngestionMethod & m2) -> ContentAddressWithReferences {
auto refs = references;
bool hasSelfReference = false;
if (refs.count(path)) {
hasSelfReference = true;
refs.erase(path);
}
return FixedOutputInfo {
.method = m2,
.hash = ca->hash,
.references = {
.others = std::move(refs),
.self = hasSelfReference,
},
};
},
}, ca->method.raw);
}
bool ValidPathInfo::isContentAddressed(const Store & store) const
{
auto fullCaOpt = contentAddressWithReferences();
if (! fullCaOpt)
return false;
auto caPath = store.makeFixedOutputPathFromCA(path.name(), *fullCaOpt);
bool res = caPath == path;
if (!res)
printError("warning: path '%s' claims to be content-addressed but isn't", store.printStorePath(path));
return res;
}
size_t ValidPathInfo::checkSignatures(const Store & store, const PublicKeys & publicKeys) const
{
if (isContentAddressed(store)) return maxSigs;
size_t good = 0;
for (auto & sig : sigs)
if (checkSignature(store, publicKeys, sig))
good++;
return good;
}
bool ValidPathInfo::checkSignature(const Store & store, const PublicKeys & publicKeys, const std::string & sig) const
{
return verifyDetached(fingerprint(store), sig, publicKeys);
}
Strings ValidPathInfo::shortRefs() const
{
Strings refs;
for (auto & r : references)
refs.push_back(std::string(r.to_string()));
return refs;
}
ValidPathInfo::ValidPathInfo(
const Store & store,
std::string_view name,
ContentAddressWithReferences && ca,
Hash narHash)
: UnkeyedValidPathInfo(narHash)
, path(store.makeFixedOutputPathFromCA(name, ca))
{
std::visit(overloaded {
[this](TextInfo && ti) {
this->references = std::move(ti.references);
this->ca = ContentAddress {
.method = TextIngestionMethod {},
.hash = std::move(ti.hash),
};
},
[this](FixedOutputInfo && foi) {
this->references = std::move(foi.references.others);
if (foi.references.self)
this->references.insert(path);
this->ca = ContentAddress {
.method = std::move(foi.method),
.hash = std::move(foi.hash),
};
},
}, std::move(ca).raw);
}
}
|
