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import re
import utils
from core import messages
from core.loggers import log
from core.module import Module
from core.vectors import PhpCode
class Console(Module):
"""Execute SQL query or run console."""
def init(self):
self.register_info(
{
'author': [
'Emilio Pinna'
],
'license': 'GPLv3'
}
)
self.register_vectors(
[
PhpCode(
"""mysqli_report(MYSQLI_REPORT_OFF);if($s=mysqli_connect('${host}:${port}','${user}','${passwd}')){$r=mysqli_query($s,'${query}');if($r){$f=mysqli_fetch_fields($r);foreach($f as $v){echo $v->name.'${linsep}';};echo '${colsep}';while($c=mysqli_fetch_row($r)){echo implode('${linsep}',$c);echo '${linsep}${colsep}';}};echo @mysqli_error($s);@mysqli_close($s);}echo '${errsep}'.@mysqli_connect_error();""",
name='mysql',
),
PhpCode(
"""mysqli_report(MYSQLI_REPORT_OFF);if($s=mysqli_connect('${host}:${port}','${user}','${passwd}','${database}')){$r=mysqli_query($s,'${query}');if($r){$f=mysqli_fetch_fields($r);foreach($f as $v){echo $v->name.'${linsep}';};echo '${colsep}';while($c=mysqli_fetch_row($r)){echo implode('${linsep}',$c);echo '${linsep}${colsep}';}};echo @mysqli_error($s);@mysqli_close($s);}echo '${errsep}'.@mysqli_connect_error();""",
name='mysql_database',
),
PhpCode(
"""mysqli_report(MYSQLI_REPORT_OFF);$r=mysqli_query('${query}');if($r){while($c=mysqli_fetch_row($r)){foreach($c as $key=>$value){echo $value.'${linsep}';}echo '${colsep}';}};mysqli_close();echo '${errsep}'.@mysqli_connect_error().' '.@mysqli_error();""",
name="mysql_fallback"
),
PhpCode(
"""if(pg_connect('host=${host} port=${port} user=${user} password=${passwd}')){$r=pg_query('${query}');if($r){while($c=pg_fetch_row($r)){foreach($c as $key=>$value){echo $value.'${linsep}';}echo '${colsep}';}};pg_close();}echo '${errsep}'.@pg_last_error();""",
name="pgsql"
),
PhpCode(
"""if(pg_connect('host=${host} port=${port} user=${user} dbname=${database} password=${passwd}')){$r=pg_query('${query}');if($r){while($c=pg_fetch_row($r)){foreach($c as $key=>$value){echo $value.'${linsep}';}echo '${colsep}';}};pg_close();}echo '${errsep}'.@pg_last_error();""",
name="pgsql_database"
),
PhpCode(
"""$r=pg_query('${query}');if($r){while($c=pg_fetch_row($r)){foreach($c as $key=>$value){echo $value.'${linsep}';} echo '${colsep}';}};pg_close();echo '${errsep}'.@pg_last_error();""",
name="pgsql_fallback"
),
]
)
self.register_arguments([
{'name': '-user', 'help': 'SQL username'},
{'name': '-passwd', 'help': 'SQL password'},
{'name': '-host', 'help': 'Db host (default: localhost)', 'nargs': '?', 'default': 'localhost'},
{'name': '-dbms', 'help': 'Db type', 'choices': ('mysql', 'pgsql'), 'default': 'mysql'},
{'name': '-database', 'help': 'Database name'},
{'name': '-port', 'help': 'Port number', 'type': int, 'default': 0},
{'name': '-query', 'help': 'Execute a single query'},
{'name': '-encoding', 'help': 'Db text encoding', 'default': 'utf-8'},
])
def _query(self, vector, args):
# Randomly generate separators
colsep = '----%s' % utils.strings.randstr(6).decode('utf-8')
linsep = '----%s' % utils.strings.randstr(6).decode('utf-8')
errsep = '----%s' % utils.strings.randstr(6).decode('utf-8')
args.update(
{'colsep': colsep, 'linsep': linsep, 'errsep': errsep}
)
# Escape ' in query strings
self.args['query'] = self.args['query'].replace('\\', '\\\\').replace('\'', '\\\'')
# Set default port depending on selected dbms
if self.args['port'] <= 0:
self.args['port'] = '5432' if self.args['dbms'] == 'pgsql' else '3306'
result = self.vectors.get_result(vector, args)
# we wan't the result to be unicode, but depending on the source
# of the data, it could be encoded differently
try:
result = str(result)
except UnicodeError:
result = str(result.decode(args.get('encoding')))
# If there is not errstr, something gone really bad (e.g. functions not callable)
if errsep not in result:
return {
'error': messages.module_sql_console.unexpected_response,
'result': []
}
else:
# Split result by errsep
result, error = result.split(errsep)
return {
'error': error,
'result': [
line.split(linsep) for line
in result.replace(linsep + colsep, colsep).split(colsep) if line
]
}
def run(self, **kwargs):
# The vector name is given by the db type
vector = self.args.get('dbms')
encoding = self.args.get('encoding')
database = self.args.get('database')
# Check if PostgreSQL and database is given
if database:
vector += '_database'
else:
# And by the user and password presence
vector += (
'' if self.args.get('user') and self.args.get('passwd')
else '_fallback'
)
# If the query is set, just execute it
if self.args.get('query'):
return self._query(vector, self.args)
# Else, start the console.
# Check credentials
self.args['query'] = (
'SELECT USER;' if vector.startswith('pgsql')
else 'SELECT USER();'
)
result = self._query(vector, self.args)
if not result['result']:
return result
if result['result'][0]:
user = result['result'][1][0]
# Console loop
while True:
query = input('{}:{} SQL> '.format(user, database)).strip()
if not query:
continue
if query in ['quit', '\q', 'exit']:
return {"result": "sql_console exited.", "error": False}
m = re.findall("^use\s+([\w_]+);?$", query, re.IGNORECASE)
if len(m):
database = m[0]
self.args.update({"database": database})
print("databse changed to {}.".format(database))
continue
self.args['query'] = query
result = self._query(vector, self.args)
self.print_result(result)
def print_result(self, result):
if result['error']:
log.info(result['error'])
if result['result']:
if type(result['result']) is str:
log.info(result["result"])
else:
Module.print_result(self, result['result'], header=True)
elif not result['error']:
log.warn('%s %s' % (
messages.module_sql_console.no_data,
messages.module_sql_console.check_credentials)
)
command_last_chars = utils.prettify.shorten(
self.args['query'].rstrip(),
keep_trailer=10
)
if (command_last_chars and command_last_chars[-1] != ';'):
log.warn(messages.module_sql_console.missing_sql_trailer_s % command_last_chars)
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