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Adds PoC about 1-time variable resolution and draft for offset

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There is no need for the variable purely associated with the
transaction (transient) be part of collection that demands
lookups. Also, those variables will held the concept of offset:
The offset from the first byte of the request till the start of
the variable.
This commit is contained in:
Felipe Zimmerle
2017-01-12 15:27:42 -03:00
committed by Felipe Zimmerle
parent 6abbb7e91e
commit 703da3c4f0
7 changed files with 2389 additions and 2301 deletions
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2539
src/parser/seclang-parser.cc
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2077
src/parser/seclang-parser.hh
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9
src/parser/seclang-parser.yy
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@@ -144,6 +144,7 @@ class Driver;
#include "src/utils/geo_lookup.h"
#include "src/utils/string.h"
#include "src/utils/system.h"
#include "src/variables/args_names.h"
#include "src/variables/xml.h"
#include "src/variables/duration.h"
#include "src/variables/env.h"
@@ -257,6 +258,7 @@ using modsecurity::operators::Operator;
COMMA ","
PIPE
NEW_LINE
VARIABLE_ARGS_NAMES "Variable ARGS_NAMES"
;
%token <std::string>
@@ -1135,7 +1137,12 @@ variables:
;
var:
VARIABLE
VARIABLE_ARGS_NAMES
{
std::unique_ptr<Variable> c(new Variables::ArgsNames());
$$ = std::move(c);
}
| VARIABLE
{
std::string name($1);
char z = name.at(0);

5
src/parser/seclang-scanner.ll
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@@ -244,7 +244,8 @@ RUN_TIME_VAR_TIME_WDAY (?i:TIME_WDAY)
RUN_TIME_VAR_TIME_YEAR (?i:TIME_YEAR)
RUN_TIME_VAR_XML (?i:XML)
VARIABLENOCOLON (?i:URLENCODED_ERROR|REQBODY_PROCESSOR_ERROR_MSG|REQBODY_PROCESSOR_ERROR|REQBODY_PROCESSOR|REQBODY_ERROR_MSG|REQBODY_ERROR|MULTIPART_FILE_LIMIT_EXCEEDED|MULTIPART_INVALID_QUOTING|MULTIPART_HEADER_FOLDING|MULTIPART_INVALID_HEADER_FOLDING|MULTIPART_STRICT_ERROR|MULTIPART_UNMATCHED_BOUNDARY|REMOTE_ADDR|REQUEST_LINE)
VARIABLE (?i:(SERVER_NAME|MULTIPART_DATA_AFTER|RESOURCE|ARGS_COMBINED_SIZE|ARGS_GET_NAMES|ARGS_POST_NAMES|FILES_TMPNAMES|FILES_COMBINED_SIZE|FULL_REQUEST_LENGTH|REQUEST_BODY_LENGTH|REQUEST_URI_RAW|UNIQUE_ID|SERVER_PORT|SERVER_ADDR|REMOTE_PORT|REMOTE_HOST|PATH_INFO|MULTIPART_CRLF_LF_LINES|MATCHED_VAR_NAME|MATCHED_VAR|INBOUND_DATA_ERROR|OUTBOUND_DATA_ERROR|FULL_REQUEST|AUTH_TYPE|ARGS_NAMES|REMOTE_ADDR|REQUEST_BASENAME|REQUEST_BODY|REQUEST_FILENAME|REQUEST_HEADERS_NAMES|REQUEST_METHOD|REQUEST_PROTOCOL|REQUEST_URI|RESPONSE_BODY|RESPONSE_CONTENT_LENGTH|RESPONSE_CONTENT_TYPE|RESPONSE_HEADERS_NAMES|RESPONSE_PROTOCOL|RESPONSE_STATUS|USERID|SESSIONID))
VARIABLE (?i:(SERVER_NAME|MULTIPART_DATA_AFTER|RESOURCE|ARGS_COMBINED_SIZE|ARGS_GET_NAMES|ARGS_POST_NAMES|FILES_TMPNAMES|FILES_COMBINED_SIZE|FULL_REQUEST_LENGTH|REQUEST_BODY_LENGTH|REQUEST_URI_RAW|UNIQUE_ID|SERVER_PORT|SERVER_ADDR|REMOTE_PORT|REMOTE_HOST|PATH_INFO|MULTIPART_CRLF_LF_LINES|MATCHED_VAR_NAME|MATCHED_VAR|INBOUND_DATA_ERROR|OUTBOUND_DATA_ERROR|FULL_REQUEST|AUTH_TYPE|REMOTE_ADDR|REQUEST_BASENAME|REQUEST_BODY|REQUEST_FILENAME|REQUEST_HEADERS_NAMES|REQUEST_METHOD|REQUEST_PROTOCOL|REQUEST_URI|RESPONSE_BODY|RESPONSE_CONTENT_LENGTH|RESPONSE_CONTENT_TYPE|RESPONSE_HEADERS_NAMES|RESPONSE_PROTOCOL|RESPONSE_STATUS|USERID|SESSIONID))
VARIABLE_ARGS_NAMES (?i:ARGS_NAMES)
VARIABLE_COL (?i:(SESSION|GLOBAL|ARGS_POST|ARGS_GET|ARGS|FILES_SIZES|FILES_NAMES|FILES_TMP_CONTENT|MULTIPART_FILENAME|MULTIPART_NAME|MATCHED_VARS_NAMES|MATCHED_VARS|FILES|QUERY_STRING|REQUEST_COOKIES|REQUEST_HEADERS|RESPONSE_HEADERS|GEO|IP|REQUEST_COOKIES_NAMES))
VARIABLE_STATUS (?i:(STATUS[^:]))
VARIABLE_TX (?i:TX)
@@ -487,6 +488,8 @@ NEW_LINE [\n\r]+
<EXPECTING_VARIABLE>{
{VARIABLE_ARGS_NAMES} { return p::make_VARIABLE_ARGS_NAMES(*driver.loc.back()); }
[!&]?{RUN_TIME_VAR_BLD} { return p::make_RUN_TIME_VAR_BLD(yytext, *driver.loc.back()); }
[!&]?{RUN_TIME_VAR_DUR} { return p::make_RUN_TIME_VAR_DUR(yytext, *driver.loc.back()); }
[!&]?{RUN_TIME_VAR_ENV}(\:[\']{FREE_TEXT_QUOTE}[\'])? { return p::make_RUN_TIME_VAR_ENV(yytext, *driver.loc.back()); }