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Merge #14377: check that a separator is found for psbt inputs, outputs, and global map

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4fb3388db9 check that a separator is found for psbt inputs, outputs, and global map (Andrew Chow)

Pull request description:

  Currently it doesn't make sure that a separator was found so PSBTs missing a trailing separator would still pass. This fixes that and adds a test case for it.

  It really only makes sense to check for the separator for the output maps as if an input or global map was missing a separator, the fields following it would be interpreted as belonging to the previous input or global map. However I have added the check for those two anyways to be consistent.

Tree-SHA512: 50c0c08e201ba02494b369a4d36ddb73e6634eb5a4e4e201c4ef38fd2dbeea2c642b8a04d50c91615da61ecbfade37309e47431368f4b1064539c42015766b50
This commit is contained in:
Wladimir J. van der Laan 2018-11-01 17:36:41 +01:00
commit 51e5ef3971
No known key found for this signature in database
GPG key ID: 1E4AED62986CD25D
2 changed files with 29 additions and 4 deletions
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30
src/script/sign.h
View file

@ -302,6 +302,7 @@ struct PSBTInput
template <typename Stream>
inline void Unserialize(Stream& s) {
// Read loop
bool found_sep = false;
while(!s.empty()) {
// Read
std::vector<unsigned char> key;
@ -309,7 +310,10 @@ struct PSBTInput
// the key is empty if that was actually a separator byte
// This is a special case for key lengths 0 as those are not allowed (except for separator)
if (key.empty()) return;
if (key.empty()) {
found_sep = true;
break;
}
// First byte of key is the type
unsigned char type = key[0];
@ -424,6 +428,10 @@ struct PSBTInput
break;
}
}
if (!found_sep) {
throw std::ios_base::failure("Separator is missing at the end of an input map");
}
}
template <typename Stream>
@ -477,6 +485,7 @@ struct PSBTOutput
template <typename Stream>
inline void Unserialize(Stream& s) {
// Read loop
bool found_sep = false;
while(!s.empty()) {
// Read
std::vector<unsigned char> key;
@ -484,7 +493,10 @@ struct PSBTOutput
// the key is empty if that was actually a separator byte
// This is a special case for key lengths 0 as those are not allowed (except for separator)
if (key.empty()) return;
if (key.empty()) {
found_sep = true;
break;
}
// First byte of key is the type
unsigned char type = key[0];
@ -529,6 +541,10 @@ struct PSBTOutput
}
}
}
if (!found_sep) {
throw std::ios_base::failure("Separator is missing at the end of an output map");
}
}
template <typename Stream>
@ -604,6 +620,7 @@ struct PartiallySignedTransaction
}
// Read global data
bool found_sep = false;
while(!s.empty()) {
// Read
std::vector<unsigned char> key;
@ -611,7 +628,10 @@ struct PartiallySignedTransaction
// the key is empty if that was actually a separator byte
// This is a special case for key lengths 0 as those are not allowed (except for separator)
if (key.empty()) break;
if (key.empty()) {
found_sep = true;
break;
}
// First byte of key is the type
unsigned char type = key[0];
@ -651,6 +671,10 @@ struct PartiallySignedTransaction
}
}
if (!found_sep) {
throw std::ios_base::failure("Separator is missing at the end of the global map");
}
// Make sure that we got an unsigned tx
if (!tx) {
throw std::ios_base::failure("No unsigned transcation was provided");

3
test/functional/data/rpc_psbt.json
View file

@ -17,7 +17,8 @@
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],
"valid" : [
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