100 lines
3.8 KiB
Diff
100 lines
3.8 KiB
Diff
From ff36010963d1c2f2e6b331aa6d7d7d879e3975f6 Mon Sep 17 00:00:00 2001
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From: Eric Covener <covener@apache.org>
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Date: Wed, 19 Feb 2020 12:26:31 +0000
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Subject: [PATCH 2/2] add AP_REG_NO_DEFAULT to allow opt-out of pcre defaults
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... and use it in mod_substitute to avoid DOTALL
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git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1874191 13f79535-47bb-0310-9956-ffa450edef68
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---
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include/ap_mmn.h | 1 +
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include/ap_regex.h | 4 +++-
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modules/filters/mod_substitute.c | 6 ++++--
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server/util_pcre.c | 4 +++-
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server/util_regex.c | 3 ++-
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5 files changed, 13 insertions(+), 5 deletions(-)
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diff --git a/include/ap_mmn.h b/include/ap_mmn.h
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index f5043ef..4c74e56 100644
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--- a/include/ap_mmn.h
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+++ b/include/ap_mmn.h
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@@ -516,6 +516,7 @@
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* 20120211.78 (2.4.34-dev) Add response_field_size to proxy_worker_shared
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* 20120211.79 (2.4.34-dev) Add AP_GETLINE_NOSPC_EOL flag to http_protocol.h
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* 20120211.90 (2.4.42-dev) AP_REG_DEFAULT macro in ap_regex.h
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+ * 20120211.92 (2.4.42-dev) AP_REG_NO_DEFAULT macro in ap_regex.h
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*/
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#define MODULE_MAGIC_COOKIE 0x41503234UL /* "AP24" */
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diff --git a/include/ap_regex.h b/include/ap_regex.h
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index e651eea..7af2f99 100644
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--- a/include/ap_regex.h
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+++ b/include/ap_regex.h
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@@ -84,7 +84,9 @@ extern "C" {
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#define AP_REG_DOLLAR_ENDONLY 0x200 /* '$' matches at end of subject string only */
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-#define AP_REG_MATCH "MATCH_" /** suggested prefix for ap_regname */
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+#define AP_REG_NO_DEFAULT 0x400 /**< Don't implicitely add AP_REG_DEFAULT options */
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+
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+#define AP_REG_MATCH "MATCH_" /**< suggested prefix for ap_regname */
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#define AP_REG_DEFAULT (AP_REG_DOTALL|AP_REG_DOLLAR_ENDONLY)
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diff --git a/modules/filters/mod_substitute.c b/modules/filters/mod_substitute.c
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index b7d5296..e976c51 100644
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--- a/modules/filters/mod_substitute.c
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+++ b/modules/filters/mod_substitute.c
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@@ -667,8 +667,10 @@ static const char *set_pattern(cmd_parms *cmd, void *cfg, const char *line)
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/* first see if we can compile the regex */
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if (!is_pattern) {
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- r = ap_pregcomp(cmd->pool, from, AP_REG_EXTENDED |
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- (ignore_case ? AP_REG_ICASE : 0));
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+ int flags = AP_REG_NO_DEFAULT
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+ | (ap_regcomp_get_default_cflags() & AP_REG_DOLLAR_ENDONLY)
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+ | (ignore_case ? AP_REG_ICASE : 0);
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+ r = ap_pregcomp(cmd->pool, from, flags);
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if (!r)
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return "Substitute could not compile regex";
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}
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diff --git a/server/util_pcre.c b/server/util_pcre.c
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index 74722b4..8819871 100644
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--- a/server/util_pcre.c
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+++ b/server/util_pcre.c
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@@ -168,7 +168,9 @@ AP_DECLARE(int) ap_regcomp(ap_regex_t * preg, const char *pattern, int cflags)
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int errcode = 0;
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int options = PCRE_DUPNAMES;
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- cflags |= default_cflags;
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+ if ((cflags & AP_REG_NO_DEFAULT) == 0)
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+ cflags |= default_cflags;
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+
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if ((cflags & AP_REG_ICASE) != 0)
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options |= PCRE_CASELESS;
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if ((cflags & AP_REG_NEWLINE) != 0)
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diff --git a/server/util_regex.c b/server/util_regex.c
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index 2a30d68..5405f8d 100644
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--- a/server/util_regex.c
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+++ b/server/util_regex.c
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@@ -94,6 +94,7 @@ AP_DECLARE(ap_rxplus_t*) ap_rxplus_compile(apr_pool_t *pool,
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}
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/* anything after the current delimiter is flags */
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+ ret->flags = ap_regcomp_get_default_cflags() & AP_REG_DOLLAR_ENDONLY;
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while (*++endp) {
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switch (*endp) {
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case 'i': ret->flags |= AP_REG_ICASE; break;
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@@ -106,7 +107,7 @@ AP_DECLARE(ap_rxplus_t*) ap_rxplus_compile(apr_pool_t *pool,
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default: break; /* we should probably be stricter here */
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}
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}
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- if (ap_regcomp(&ret->rx, rxstr, ret->flags) == 0) {
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+ if (ap_regcomp(&ret->rx, rxstr, AP_REG_NO_DEFAULT | ret->flags) == 0) {
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apr_pool_cleanup_register(pool, &ret->rx, rxplus_cleanup,
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apr_pool_cleanup_null);
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}
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--
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1.8.3.1
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