phantom/bitcoin
1
0
Fork 0
mirror of https://github.com/bitcoin/bitcoin.git synced 2025-01-25 02:33:24 -03:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

common: Don't terminate on null character in UrlDecode

Browse source 
The previous behavior was the result of casting the result returned from the libevent function evhttp_uridecode to std:string but this was probably not intended.
This commit is contained in:
Fabian Jahr 2024-04-21 21:48:05 +02:00
parent 099fa57151
commit 992c714451
No known key found for this signature in database
GPG key ID: F13D1E9D890798CD
2 changed files with 4 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/common/url.cpp
View file

@ -25,11 +25,6 @@ std::string UrlDecode(std::string_view url_encoded)
// Only if there is no error and the pointer is set to the end of
// the string, we can be sure both characters were valid hex
if (ec == std::errc{} && p == url_encoded.data() + i + 3) {
// A null character terminates the string
if (decoded_value == 0) {
return res;
}
res += static_cast<char>(decoded_value);
// Next two characters are part of the percent encoding
i += 2;

6
src/test/common_url_tests.cpp
View file

@ -63,8 +63,10 @@ BOOST_AUTO_TEST_CASE(decode_lowercase_hex_test) {
}
BOOST_AUTO_TEST_CASE(decode_internal_nulls_test) {
BOOST_CHECK_EQUAL(UrlDecode("%00%00x%00%00"), "");
BOOST_CHECK_EQUAL(UrlDecode("abc%00%00"), "abc");
std::string result1{"\0\0x\0\0", 5};
BOOST_CHECK_EQUAL(UrlDecode("%00%00x%00%00"), result1);
std::string result2{"abc\0\0", 5};
BOOST_CHECK_EQUAL(UrlDecode("abc%00%00"), result2);
}
BOOST_AUTO_TEST_SUITE_END()