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15% speedup in some cases (avoiding heuristic char detection)

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This commit is contained in:
Miroslav Stampar 2021-06-08 21:48:43 +02:00
parent 295cd15dff
commit 63073a1873
2 changed files with 7 additions and 2 deletions
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6
lib/core/settings.py
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@ -16,10 +16,11 @@ import time
from lib.core.enums import DBMS
from lib.core.enums import DBMS_DIRECTORY_NAME
from lib.core.enums import OS
from thirdparty import six
from thirdparty.six import unichr as _unichr
# sqlmap version (<major>.<minor>.<month>.<monthly commit>)
VERSION = "1.5.6.0"
VERSION = "1.5.6.1"
TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
@ -906,6 +907,9 @@ KB_CHARS_BOUNDARY_CHAR = 'q'
# Letters of lower frequency used in kb.chars
KB_CHARS_LOW_FREQUENCY_ALPHABET = "zqxjkvbp"
# Printable bytes
PRINTABLE_BYTES = set(bytes(string.printable, "ascii") if six.PY3 else string.printable)
# SQL keywords used for splitting in HTTP chunked transfer encoded requests (switch --chunk)
HTTP_CHUNKED_SPLIT_KEYWORDS = ("SELECT", "UPDATE", "INSERT", "FROM", "LOAD_FILE", "UNION", "information_schema", "sysdatabases", "msysaccessobjects", "msysqueries", "sysmodules")

3
lib/request/basic.py
View File

@ -48,6 +48,7 @@ from lib.core.settings import IDENTYWAF_PARSE_LIMIT
from lib.core.settings import MAX_CONNECTION_TOTAL_SIZE
from lib.core.settings import META_CHARSET_REGEX
from lib.core.settings import PARSE_HEADERS_LIMIT
from lib.core.settings import PRINTABLE_BYTES
from lib.core.settings import SELECT_FROM_TABLE_REGEX
from lib.core.settings import UNICODE_ENCODING
from lib.core.settings import VIEWSTATE_REGEX
@ -324,7 +325,7 @@ def decodePage(page, contentEncoding, contentType, percentDecode=True):
metaCharset = checkCharEncoding(extractRegexResult(META_CHARSET_REGEX, page))
if (any((httpCharset, metaCharset)) and not all((httpCharset, metaCharset))) or (httpCharset == metaCharset and all((httpCharset, metaCharset))):
if (any((httpCharset, metaCharset)) and (not all((httpCharset, metaCharset)) or isinstance(page, six.binary_type) and all(_ in PRINTABLE_BYTES for _ in page))) or (httpCharset == metaCharset and all((httpCharset, metaCharset))):
kb.pageEncoding = httpCharset or metaCharset # Reference: http://bytes.com/topic/html-css/answers/154758-http-equiv-vs-true-header-has-precedence
debugMsg = "declared web page charset '%s'" % kb.pageEncoding
singleTimeLogMessage(debugMsg, logging.DEBUG, debugMsg)