Second part of IIS/nginx merge into M2 trunk.

2025-09-29 19:24:29 +03:00 · 2012-08-20 20:31:06 +00:00
parent f3e31c75a4
commit 2dbe4ab4f0
23 changed files with 4780 additions and 43 deletions
--- a/standalone/regex.c
+++ b/standalone/regex.c
@@ -0,0 +1,162 @@
+/*
+* ModSecurity for Apache 2.x, http://www.modsecurity.org/
+* Copyright (c) 2004-2011 Trustwave Holdings, Inc. (http://www.trustwave.com/)
+*
+* You may not use this file except in compliance with
+* the License.  You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* If any of the files related to licensing are missing or if you have any
+* other questions related to licensing please contact Trustwave Holdings, Inc.
+* directly using the email address security@modsecurity.org.
+*/
+
+#include <limits.h>
+
+#include "http_core.h"
+#include "http_request.h"
+
+#include "modsecurity.h"
+#include "apache2.h"
+#include "http_main.h"
+#include "http_connection.h"
+
+#include "apr_optional.h"
+#include "mod_log_config.h"
+
+#include "msc_logging.h"
+#include "msc_util.h"
+
+#include "ap_mpm.h"
+#include "scoreboard.h"
+
+#include "apr_version.h"
+
+#include "apr_lib.h"
+#include "ap_config.h"
+#include "http_config.h"
+
+
+static apr_status_t regex_cleanup(void *preg)
+{
+    ap_regfree((ap_regex_t *) preg);
+    return APR_SUCCESS;
+}
+
+AP_DECLARE(ap_regex_t *) ap_pregcomp(apr_pool_t *p, const char *pattern,
+                                     int cflags)
+{
+    ap_regex_t *preg = apr_palloc(p, sizeof *preg);
+
+    if (ap_regcomp(preg, pattern, cflags)) {
+        return NULL;
+    }
+
+    apr_pool_cleanup_register(p, (void *) preg, regex_cleanup,
+                              apr_pool_cleanup_null);
+
+    return preg;
+}
+
+AP_DECLARE(void) ap_regfree(ap_regex_t *preg)
+{
+(pcre_free)(preg->re_pcre);
+}
+
+AP_DECLARE(int) ap_regcomp(ap_regex_t *preg, const char *pattern, int cflags)
+{
+const char *errorptr;
+int erroffset;
+int options = 0;
+int nsub = 0;
+
+if ((cflags & AP_REG_ICASE) != 0) options |= PCRE_CASELESS;
+if ((cflags & AP_REG_NEWLINE) != 0) options |= PCRE_MULTILINE;
+
+preg->re_pcre = pcre_compile(pattern, options, &errorptr, &erroffset, NULL);
+preg->re_erroffset = erroffset;
+
+if (preg->re_pcre == NULL) return AP_REG_INVARG;
+
+pcre_fullinfo((const pcre *)preg->re_pcre, NULL, PCRE_INFO_CAPTURECOUNT, &nsub);
+preg->re_nsub = nsub;
+return 0;
+}
+
+#ifndef POSIX_MALLOC_THRESHOLD
+#define POSIX_MALLOC_THRESHOLD (10)
+#endif
+
+AP_DECLARE(int) ap_regexec(const ap_regex_t *preg, const char *string,
+                           apr_size_t nmatch, ap_regmatch_t pmatch[],
+                           int eflags)
+{
+int rc;
+int options = 0;
+int *ovector = NULL;
+int small_ovector[POSIX_MALLOC_THRESHOLD * 3];
+int allocated_ovector = 0;
+
+if ((eflags & AP_REG_NOTBOL) != 0) options |= PCRE_NOTBOL;
+if ((eflags & AP_REG_NOTEOL) != 0) options |= PCRE_NOTEOL;
+
+((ap_regex_t *)preg)->re_erroffset = (apr_size_t)(-1);  /* Only has meaning after compile */
+
+if (nmatch > 0)
+  {
+  if (nmatch <= POSIX_MALLOC_THRESHOLD)
+    {
+    ovector = &(small_ovector[0]);
+    }
+  else
+    {
+    ovector = (int *)malloc(sizeof(int) * nmatch * 3);
+    if (ovector == NULL) return AP_REG_ESPACE;
+    allocated_ovector = 1;
+    }
+  }
+
+rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string, (int)strlen(string),
+  0, options, ovector, nmatch * 3);
+
+if (rc == 0) rc = nmatch;    /* All captured slots were filled in */
+
+if (rc >= 0)
+  {
+  apr_size_t i;
+  for (i = 0; i < (apr_size_t)rc; i++)
+    {
+    pmatch[i].rm_so = ovector[i*2];
+    pmatch[i].rm_eo = ovector[i*2+1];
+    }
+  if (allocated_ovector) free(ovector);
+  for (; i < nmatch; i++) pmatch[i].rm_so = pmatch[i].rm_eo = -1;
+  return 0;
+  }
+
+else
+  {
+  if (allocated_ovector) free(ovector);
+  switch(rc)
+    {
+    case PCRE_ERROR_NOMATCH: return AP_REG_NOMATCH;
+    case PCRE_ERROR_NULL: return AP_REG_INVARG;
+    case PCRE_ERROR_BADOPTION: return AP_REG_INVARG;
+    case PCRE_ERROR_BADMAGIC: return AP_REG_INVARG;
+    case PCRE_ERROR_UNKNOWN_NODE: return AP_REG_ASSERT;
+    case PCRE_ERROR_NOMEMORY: return AP_REG_ESPACE;
+#ifdef PCRE_ERROR_MATCHLIMIT
+    case PCRE_ERROR_MATCHLIMIT: return AP_REG_ESPACE;
+#endif
+#ifdef PCRE_ERROR_BADUTF8
+    case PCRE_ERROR_BADUTF8: return AP_REG_INVARG;
+#endif
+#ifdef PCRE_ERROR_BADUTF8_OFFSET
+    case PCRE_ERROR_BADUTF8_OFFSET: return AP_REG_INVARG;
+#endif
+    default: return AP_REG_ASSERT;
+    }
+  }
+}
+