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-rwxr-xr-xcontrib/signet/getcoins.py34
-rw-r--r--src/core_write.cpp2
-rw-r--r--test/sanitizer_suppressions/ubsan1
3 files changed, 19 insertions, 18 deletions
diff --git a/contrib/signet/getcoins.py b/contrib/signet/getcoins.py
index f1d1de9cfd..147d12600d 100755
--- a/contrib/signet/getcoins.py
+++ b/contrib/signet/getcoins.py
@@ -8,6 +8,7 @@ import io
import requests
import subprocess
import sys
+import xml.etree.ElementTree
DEFAULT_GLOBAL_FAUCET = 'https://signetfaucet.com/claim'
DEFAULT_GLOBAL_CAPTCHA = 'https://signetfaucet.com/captcha'
@@ -88,20 +89,17 @@ def bitcoin_cli(rpc_command_and_params):
try:
return subprocess.check_output(argv).strip().decode()
except FileNotFoundError:
- print('The binary', args.cmd, 'could not be found.')
- exit(1)
+ raise SystemExit(f"The binary {args.cmd} could not be found")
except subprocess.CalledProcessError:
cmdline = ' '.join(argv)
- print(f'-----\nError while calling "{cmdline}" (see output above).')
- exit(1)
+ raise SystemExit(f"-----\nError while calling {cmdline} (see output above).")
if args.faucet.lower() == DEFAULT_GLOBAL_FAUCET:
# Get the hash of the block at height 1 of the currently active signet chain
curr_signet_hash = bitcoin_cli(['getblockhash', '1'])
if curr_signet_hash != GLOBAL_FIRST_BLOCK_HASH:
- print('The global faucet cannot be used with a custom Signet network. Please use the global signet or setup your custom faucet to use this functionality.\n')
- exit(1)
+ raise SystemExit('The global faucet cannot be used with a custom Signet network. Please use the global signet or setup your custom faucet to use this functionality.\n')
else:
# For custom faucets, don't request captcha by default.
if args.captcha == DEFAULT_GLOBAL_CAPTCHA:
@@ -120,28 +118,32 @@ session = requests.Session()
if args.captcha != '': # Retrieve a captcha
try:
res = session.get(args.captcha)
- except:
- print('Unexpected error when contacting faucet:', sys.exc_info()[0])
- exit(1)
+ res.raise_for_status()
+ except requests.exceptions.RequestException as e:
+ raise SystemExit(f"Unexpected error when contacting faucet: {e}")
+
+ # Size limitation
+ svg = xml.etree.ElementTree.fromstring(res.content)
+ if svg.attrib.get('width') != '150' or svg.attrib.get('height') != '50':
+ raise SystemExit("Captcha size doesn't match expected dimensions 150x50")
# Convert SVG image to PPM, and load it
try:
- rv = subprocess.run([args.imagemagick, '-', '-depth', '8', 'ppm:-'], input=res.content, check=True, capture_output=True)
+ rv = subprocess.run([args.imagemagick, 'svg:-', '-depth', '8', 'ppm:-'], input=res.content, check=True, capture_output=True)
except FileNotFoundError:
- print('The binary', args.imagemagick, 'could not be found. Please make sure ImageMagick (or a compatible fork) is installed and that the correct path is specified.')
- exit(1)
+ raise SystemExit(f"The binary {args.imagemagick} could not be found. Please make sure ImageMagick (or a compatible fork) is installed and that the correct path is specified.")
+
img = PPMImage(io.BytesIO(rv.stdout))
# Terminal interaction
print_image(img)
- print('Enter captcha: ', end='')
- data['captcha'] = input()
+ print(f"Captcha from URL {args.captcha}")
+ data['captcha'] = input('Enter captcha: ')
try:
res = session.post(args.faucet, data=data)
except:
- print('Unexpected error when contacting faucet:', sys.exc_info()[0])
- exit(1)
+ raise SystemExit(f"Unexpected error when contacting faucet: {sys.exc_info()[0]}")
# Display the output as per the returned status code
if res:
diff --git a/src/core_write.cpp b/src/core_write.cpp
index 5ea62cf3ed..c4b6b8d27e 100644
--- a/src/core_write.cpp
+++ b/src/core_write.cpp
@@ -65,7 +65,7 @@ std::string FormatScript(const CScript& script)
ret += strprintf("0x%x ", HexStr(std::vector<uint8_t>(it2, script.end())));
break;
}
- return ret.substr(0, ret.size() - 1);
+ return ret.substr(0, ret.empty() ? ret.npos : ret.size() - 1);
}
const std::map<unsigned char, std::string> mapSigHashTypes = {
diff --git a/test/sanitizer_suppressions/ubsan b/test/sanitizer_suppressions/ubsan
index 2084e02b8a..bdaee5d191 100644
--- a/test/sanitizer_suppressions/ubsan
+++ b/test/sanitizer_suppressions/ubsan
@@ -47,7 +47,6 @@ unsigned-integer-overflow:arith_uint256.h
unsigned-integer-overflow:common/bloom.cpp
unsigned-integer-overflow:coins.cpp
unsigned-integer-overflow:compressor.cpp
-unsigned-integer-overflow:core_write.cpp
unsigned-integer-overflow:crypto/
unsigned-integer-overflow:hash.cpp
unsigned-integer-overflow:policy/fees.cpp