From 02409669e4201ec2cb90f1e6df316dddbe04561e Mon Sep 17 00:00:00 2001 From: Dmitry Stogov Date: Wed, 31 Jul 2013 03:01:19 +0400 Subject: [PATCH] Added support for glob symbols in blacklist entries (?, *, **) --- NEWS | 2 + ext/opcache/tests/blacklist.inc | 3 + ext/opcache/tests/blacklist.phpt | 16 ++- ext/opcache/tests/opcache-2.blacklist | 5 + ext/opcache/zend_accelerator_blacklist.c | 138 +++++++++++++++++------ 5 files changed, 128 insertions(+), 36 deletions(-) create mode 100644 ext/opcache/tests/blacklist.inc diff --git a/NEWS b/NEWS index d21126d45a..60b2760b39 100644 --- a/NEWS +++ b/NEWS @@ -11,6 +11,8 @@ PHP NEWS limited case). (Arpad) - OPcahce: + . Added support for glob symbols in blacklist entries (?, *, **). + (Terry Elison, Dmitry) . Fixed bug #65338 (Enabling both php_opcache and php_wincache AVs on shutdown). (Dmitry) diff --git a/ext/opcache/tests/blacklist.inc b/ext/opcache/tests/blacklist.inc new file mode 100644 index 0000000000..a9db751419 --- /dev/null +++ b/ext/opcache/tests/blacklist.inc @@ -0,0 +1,3 @@ + diff --git a/ext/opcache/tests/blacklist.phpt b/ext/opcache/tests/blacklist.phpt index f4a34723ad..57e4c306dd 100644 --- a/ext/opcache/tests/blacklist.phpt +++ b/ext/opcache/tests/blacklist.phpt @@ -9,7 +9,13 @@ opcache.blacklist_filename={PWD}/opcache-*.blacklist --FILE-- --EXPECT-- Array @@ -17,4 +23,10 @@ Array [0] => /path/to/foo [1] => /path/to/foo2 [2] => /path/to/bar -) \ No newline at end of file + [3] => __DIR__/blacklist.inc + [4] => __DIR__/current.php + [5] => /tmp/path/?nocache.inc + [6] => /tmp/path/*/somedir +) +ok +1 diff --git a/ext/opcache/tests/opcache-2.blacklist b/ext/opcache/tests/opcache-2.blacklist index 4f6580a773..575d9fab30 100644 --- a/ext/opcache/tests/opcache-2.blacklist +++ b/ext/opcache/tests/opcache-2.blacklist @@ -1 +1,6 @@ /path/to/bar +; wildcard and relative entires +blacklist.inc +./current.php +/tmp/path/?nocache.inc +/tmp/path/*/somedir diff --git a/ext/opcache/zend_accelerator_blacklist.c b/ext/opcache/zend_accelerator_blacklist.c index b09d0e54c3..b11d41e1ec 100644 --- a/ext/opcache/zend_accelerator_blacklist.c +++ b/ext/opcache/zend_accelerator_blacklist.c @@ -86,9 +86,9 @@ static void blacklist_report_regexp_error(regex_t *comp_regex, int reg_err) static void zend_accel_blacklist_update_regexp(zend_blacklist *blacklist) { - char *regexp; - int i, j, clen, reg_err, end = 0, rlen = 6; + int i, reg_err; zend_regexp_list **regexp_list_it, *it; + char regexp[12*1024], *p, *end, *c, *backtrack = NULL; if (blacklist->pos == 0) { /* we have no blacklist to talk about */ @@ -96,36 +96,91 @@ static void zend_accel_blacklist_update_regexp(zend_blacklist *blacklist) } regexp_list_it = &(blacklist->regexp_list); - for (i = 0; i < blacklist->pos; i++) { - rlen += blacklist->entries[i].path_length * 2 + 2; - /* don't create a regexp buffer bigger than 12K)*/ - if ((i + 1 == blacklist->pos) || ((rlen + blacklist->entries[i + 1].path_length * 2 + 2) > (12 * 1024))) { - regexp = (char *)malloc(rlen); - if (!regexp) { - zend_accel_error(ACCEL_LOG_ERROR, "malloc() failed\n"); - return; + regexp[0] = '^'; + regexp[1] = '('; + p = regexp + 2; + end = regexp + sizeof(regexp) - sizeof("[^\\\\]*)\0"); + + for (i = 0; i < blacklist->pos; ) { + c = blacklist->entries[i].path; + if (p + blacklist->entries[i].path_length < end) { + while (*c && p < end) { + switch (*c) { + case '?': + c++; +#ifdef ZEND_WIN32 + p[0] = '['; /* * => [^\\] on Win32 */ + p[1] = '^'; + p[2] = '\\'; + p[3] = '\\'; + p[4] = ']'; + p += 5; +#else + p[0] = '['; /* * => [^/] on *nix */ + p[1] = '^'; + p[2] = '/'; + p[3] = ']'; + p += 4; +#endif + break; + case '*': + c++; + if (*c == '*') { + c++; + p[0] = '.'; /* ** => .* */ + p[1] = '*'; + p += 2; + } else { +#ifdef ZEND_WIN32 + p[0] = '['; /* * => [^\\]* on Win32 */ + p[1] = '^'; + p[2] = '\\'; + p[3] = '\\'; + p[4] = ']'; + p[5] = '*'; + p += 6; +#else + p[0] = '['; /* * => [^/]* on *nix */ + p[1] = '^'; + p[2] = '/'; + p[3] = ']'; + p[4] = '*'; + p += 5; +#endif + } + break; + case '^': + case '.': + case '[': + case ']': + case '$': + case '(': + case ')': + case '|': + case '+': + case '{': + case '}': + case '\\': + *p++ = '\\'; + /* break missing intentionally */ + default: + *p++ = *c++; + } } - regexp[0] = '^'; - regexp[1] = '('; - - clen = 2; - for (j = end; j <= i; j++) { + } - int c; - if (j != end) { - regexp[clen++] = '|'; - } - /* copy mangled filename */ - for (c = 0; c < blacklist->entries[j].path_length; c++) { - if (strchr("^.[]$()|*+?{}\\", blacklist->entries[j].path[c])) { - regexp[clen++] = '\\'; - } - regexp[clen++] = blacklist->entries[j].path[c]; + if (*c || i == blacklist->pos - 1) { + if (*c) { + if (!backtrack) { + zend_accel_error(ACCEL_LOG_ERROR, "Too long blacklist entry\n"); } + p = backtrack; + } else { + i++; } - regexp[clen++] = ')'; - regexp[clen] = '\0'; + *p++ = ')'; + *p++ = '\0'; it = (zend_regexp_list*)malloc(sizeof(zend_regexp_list)); if (!it) { @@ -138,11 +193,13 @@ static void zend_accel_blacklist_update_regexp(zend_blacklist *blacklist) blacklist_report_regexp_error(&it->comp_regex, reg_err); } /* prepare for the next iteration */ - free(regexp); - end = i + 1; - rlen = 6; + p = regexp + 2; *regexp_list_it = it; regexp_list_it = &it->next; + } else { + backtrack = p; + *p++ = '|'; + i++; } } } @@ -182,9 +239,9 @@ static void zend_accel_blacklist_loadone(zend_blacklist *blacklist, char *filena void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) #endif { - char buf[MAXPATHLEN + 1], real_path[MAXPATHLEN + 1]; + char buf[MAXPATHLEN + 1], real_path[MAXPATHLEN + 1], *blacklist_path = NULL; FILE *fp; - int path_length; + int path_length, blacklist_path_length; TSRMLS_FETCH(); if ((fp = fopen(filename, "r")) == NULL) { @@ -194,6 +251,11 @@ void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) zend_accel_error(ACCEL_LOG_DEBUG,"Loading blacklist file: '%s'", filename); + if (VCWD_REALPATH(filename, buf)) { + blacklist_path_length = zend_dirname(buf, strlen(buf)); + blacklist_path = zend_strndup(buf, blacklist_path_length); + } + memset(buf, 0, sizeof(buf)); memset(real_path, 0, sizeof(real_path)); @@ -230,7 +292,11 @@ void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) } path_dup = zend_strndup(pbuf, path_length); - expand_filepath(path_dup, real_path TSRMLS_CC); + if (blacklist_path) { + expand_filepath_ex(path_dup, real_path, blacklist_path, blacklist_path_length TSRMLS_CC); + } else { + expand_filepath(path_dup, real_path TSRMLS_CC); + } path_length = strlen(real_path); free(path_dup); @@ -247,6 +313,9 @@ void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) blacklist->pos++; } fclose(fp); + if (blacklist_path) { + free(blacklist_path); + } zend_accel_blacklist_update_regexp(blacklist); } @@ -254,7 +323,8 @@ void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) void zend_accel_blacklist_load(zend_blacklist *blacklist, char *filename) { glob_t globbuf; - int ret, i; + int ret; + unsigned int i; memset(&globbuf, 0, sizeof(glob_t)); -- 2.50.1