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Follow up to r1873941: define AP_REG_NO_DEFAULT for raw ap_regcomp() usage.

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This avoids having to define AP_REG_NO_* for each APR_REG_* specific option,
thus replacing AP_REG_NO_DOTALL introduced lately.

For ap_rxplus_compile() and mod_substitute where default AP_REG_DOTALL is not
suitable, let's use:
    AP_REG_NO_DEFAULT | ap_regcomp_get_default_cflags() & AP_REG_DOLLAR_ENDONLY
to keep the default AP_REG_DOLLAR_ENDONLY unless RegexDefaultOptions unsets it.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1874090 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Yann Ylavic
2020-02-16 23:08:32 +00:00
parent e957c6ddc9
commit c8f486d716
5 changed files with 11 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/ap_mmn.h
View File

@ -620,7 +620,7 @@
* 20190312.6 (2.5.1-dev) Add proxy check_trans hook
* 20190312.7 (2.5.1-dev) AP_REG_DEFAULT macro in ap_regex.h
* 20190312.8 (2.5.1-dev) ap_is_chunked() in httpd.h
* 20190312.9 (2.5.1-dev) AP_REG_NO_DOTALL macro in ap_regex.h
* 20190312.9 (2.5.1-dev) AP_REG_NO_DEFAULT macro in ap_regex.h
*/
#define MODULE_MAGIC_COOKIE 0x41503235UL /* "AP25" */

2
include/ap_regex.h
View File

@ -87,7 +87,7 @@ extern "C" {
#define AP_REG_DOLLAR_ENDONLY 0x200 /**< '$' matches at end of subject string only */
#define AP_REG_NO_DOTALL 0x400 /**< remove AP_REG_DOTALL from defaults */
#define AP_REG_NO_DEFAULT 0x400 /**< Don't implicitely add AP_REG_DEFAULT options */
#define AP_REG_MATCH "MATCH_" /**< suggested prefix for ap_regname */

6
modules/filters/mod_substitute.c
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@ -716,8 +716,10 @@ static const char *set_pattern(cmd_parms *cmd, void *cfg, const char *line)
/* first see if we can compile the regex */
if (!is_pattern) {
r = ap_pregcomp(cmd->pool, from, AP_REG_NO_DOTALL | AP_REG_EXTENDED |
(ignore_case ? AP_REG_ICASE : 0));
int flags = AP_REG_NO_DEFAULT
| (ap_regcomp_get_default_cflags() & AP_REG_DOLLAR_ENDONLY)
| (ignore_case ? AP_REG_ICASE : 0);
r = ap_pregcomp(cmd->pool, from, flags);
if (!r)
return "Substitute could not compile regex";
}

9
server/util_pcre.c
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@ -179,9 +179,6 @@ AP_DECLARE(int) ap_regcomp_default_cflag_by_name(const char *name)
else if (ap_cstr_casecmp(name, "DOTALL") == 0) {
cflag = AP_REG_DOTALL;
}
else if (ap_cstr_casecmp(name, "NO_DOTALL") == 0) {
cflag = AP_REG_NO_DOTALL;
}
else if (ap_cstr_casecmp(name, "DOLLAR_ENDONLY") == 0) {
cflag = AP_REG_DOLLAR_ENDONLY;
}
@ -213,15 +210,15 @@ AP_DECLARE(int) ap_regcomp(ap_regex_t * preg, const char *pattern, int cflags)
int errcode = 0;
int options = PCREn(DUPNAMES);
cflags |= default_cflags;
if ((cflags & AP_REG_NO_DEFAULT) == 0)
cflags |= default_cflags;
if ((cflags & AP_REG_ICASE) != 0)
options |= PCREn(CASELESS);
if ((cflags & AP_REG_NEWLINE) != 0)
options |= PCREn(MULTILINE);
if ((cflags & AP_REG_DOTALL) != 0)
options |= PCREn(DOTALL);
if ((cflags & AP_REG_NO_DOTALL) != 0)
options &= ~PCREn(DOTALL);
if ((cflags & AP_REG_DOLLAR_ENDONLY) != 0)
options |= PCREn(DOLLAR_ENDONLY);

4
server/util_regex.c
View File

@ -94,6 +94,7 @@ AP_DECLARE(ap_rxplus_t*) ap_rxplus_compile(apr_pool_t *pool,
}
/* anything after the current delimiter is flags */
ret->flags = ap_regcomp_get_default_cflags() & AP_REG_DOLLAR_ENDONLY;
while (*++endp) {
switch (*endp) {
case 'i': ret->flags |= AP_REG_ICASE; break;
@ -101,13 +102,12 @@ AP_DECLARE(ap_rxplus_t*) ap_rxplus_compile(apr_pool_t *pool,
case 'n': ret->flags |= AP_REG_NOMEM; break;
case 'g': ret->flags |= AP_REG_MULTI; break;
case 's': ret->flags |= AP_REG_DOTALL; break;
case 'S': ret->flags |= AP_REG_NO_DOTALL; break;
case '^': ret->flags |= AP_REG_NOTBOL; break;
case '$': ret->flags |= AP_REG_NOTEOL; break;
default: break; /* we should probably be stricter here */
}
}
if (ap_regcomp(&ret->rx, rxstr, ret->flags) == 0) {
if (ap_regcomp(&ret->rx, rxstr, AP_REG_NO_DEFAULT | ret->flags) == 0) {
apr_pool_cleanup_register(pool, &ret->rx, rxplus_cleanup,
apr_pool_cleanup_null);
}