Added support for wildcards in the middle of match patterns.

1 files changed, 24 insertions, 3 deletions

diff --git a/src/nxt_conf_validation.c b/src/nxt_conf_validation.c
index ee87b0f6..e2e1b89e 100644
--- a/src/nxt_conf_validation.c
+++ b/src/nxt_conf_validation.c
@@ -741,6 +741,12 @@ nxt_conf_vldt_match_pattern(nxt_conf_validation_t *vldt,
     nxt_str_t   pattern;
     nxt_uint_t  i, first, last;
 
+    enum {
+        sw_none,
+        sw_side,
+        sw_middle
+    } state;
+
     if (nxt_conf_type(value) != NXT_CONF_STRING) {
         return nxt_conf_vldt_error(vldt,
                                    "The \"match\" patterns must be strings.");
@@ -754,17 +760,32 @@ nxt_conf_vldt_match_pattern(nxt_conf_validation_t *vldt,
 
     first = (pattern.start[0] == '!');
     last = pattern.length - 1;
+    state = sw_none;
 
     for (i = first; i != pattern.length; i++) {
+
         ch = pattern.start[i];
 
         if (ch != '*') {
             continue;
         }
 
-        if (i != first && i != last) {
-            return nxt_conf_vldt_error(vldt, "The \"match\" patterns can only "
-                                       "contain \"*\" markers at the sides.");
+        switch (state) {
+        case sw_none:
+            state = (i == first) ? sw_side : sw_middle;
+            break;
+
+        case sw_side:
+            if (i == last) {
+                break;
+            }
+
+            /* Fall through. */
+
+        case sw_middle:
+            return nxt_conf_vldt_error(vldt, "The \"match\" patterns can "
+                                       "either contain \"*\" markers at "
+                                       "the sides or only one in the middle.");
         }
     }