urlmatch: allow globbing for the URL host part

[thirdparty/git.git] / urlmatch.c

diff --git a/urlmatch.c b/urlmatch.c
index 990a9de5c09e30da34f3ac6871285fad09b9396f..4bbde924e8bf7e73f4f696d0319235ec56263a8f 100644 (file)
--- a/urlmatch.c
+++ b/urlmatch.c
@@ -63,6 +63,49 @@ static int append_normalized_escapes(struct strbuf *buf,
        return 1;
 }
 
+static const char *end_of_token(const char *s, int c, size_t n)
+{
+       const char *next = memchr(s, c, n);
+       if (!next)
+               next = s + n;
+       return next;
+}
+
+static int match_host(const struct url_info *url_info,
+                     const struct url_info *pattern_info)
+{
+       const char *url = url_info->url + url_info->host_off;
+       const char *pat = pattern_info->url + pattern_info->host_off;
+       int url_len = url_info->host_len;
+       int pat_len = pattern_info->host_len;
+
+       while (url_len && pat_len) {
+               const char *url_next = end_of_token(url, '.', url_len);
+               const char *pat_next = end_of_token(pat, '.', pat_len);
+
+               if (pat_next == pat + 1 && pat[0] == '*')
+                       /* wildcard matches anything */
+                       ;
+               else if ((pat_next - pat) == (url_next - url) &&
+                        !memcmp(url, pat, url_next - url))
+                       /* the components are the same */
+                       ;
+               else
+                       return 0; /* found an unmatch */
+
+               if (url_next < url + url_len)
+                       url_next++;
+               url_len -= url_next - url;
+               url = url_next;
+               if (pat_next < pat + pat_len)
+                       pat_next++;
+               pat_len -= pat_next - pat;
+               pat = pat_next;
+       }
+
+       return (!url_len && !pat_len);
+}
+
 static char *url_normalize_1(const char *url, struct url_info *out_info, char allow_globs)
 {
        /*
@@ -467,9 +510,7 @@ static int match_urls(const struct url_info *url,
        }
 
        /* check the host */
-       if (url_prefix->host_len != url->host_len ||
-           strncmp(url->url + url->host_off,
-                   url_prefix->url + url_prefix->host_off, url->host_len))
+       if (!match_host(url, url_prefix))
                return 0; /* host names do not match */
 
        /* check the port */
@@ -528,7 +569,7 @@ int urlmatch_config_entry(const char *var, const char *value, void *cb)
                struct url_info norm_info;
 
                config_url = xmemdupz(key, dot - key);
-               norm_url = url_normalize(config_url, &norm_info);
+               norm_url = url_normalize_1(config_url, &norm_info, 1);
                free(config_url);
                if (!norm_url)
                        return 0;