http: create function to get curl allowed protocols

Move the creation of an allowed protocols whitelist to a helper
function. This will be useful when we need to compute the set of
allowed protocols differently for normal and redirect cases.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/http.c b/http.c
index 034426e746f81a69c387705a0ad93bedb52e8aaa..f7c488af8b047627b42c850be1f6883ebab650d9 100644 (file)
--- a/http.c
+++ b/http.c
@@ -489,10 +489,25 @@ static void set_curl_keepalive(CURL *c)
 }
 #endif
 
+static long get_curl_allowed_protocols(void)
+{
+       long allowed_protocols = 0;
+
+       if (is_transport_allowed("http"))
+               allowed_protocols |= CURLPROTO_HTTP;
+       if (is_transport_allowed("https"))
+               allowed_protocols |= CURLPROTO_HTTPS;
+       if (is_transport_allowed("ftp"))
+               allowed_protocols |= CURLPROTO_FTP;
+       if (is_transport_allowed("ftps"))
+               allowed_protocols |= CURLPROTO_FTPS;
+
+       return allowed_protocols;
+}
+
 static CURL *get_curl_handle(void)
 {
        CURL *result = curl_easy_init();
-       long allowed_protocols = 0;
 
        if (!result)
                die("curl_easy_init failed");
@@ -572,16 +587,10 @@ static CURL *get_curl_handle(void)
        curl_easy_setopt(result, CURLOPT_POST301, 1);
 #endif
 #if LIBCURL_VERSION_NUM >= 0x071304
-       if (is_transport_allowed("http"))
-               allowed_protocols |= CURLPROTO_HTTP;
-       if (is_transport_allowed("https"))
-               allowed_protocols |= CURLPROTO_HTTPS;
-       if (is_transport_allowed("ftp"))
-               allowed_protocols |= CURLPROTO_FTP;
-       if (is_transport_allowed("ftps"))
-               allowed_protocols |= CURLPROTO_FTPS;
-       curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS, allowed_protocols);
-       curl_easy_setopt(result, CURLOPT_PROTOCOLS, allowed_protocols);
+       curl_easy_setopt(result, CURLOPT_REDIR_PROTOCOLS,
+                        get_curl_allowed_protocols());
+       curl_easy_setopt(result, CURLOPT_PROTOCOLS,
+                        get_curl_allowed_protocols());
 #else
        warning("protocol restrictions not applied to curl redirects because\n"
                "your curl version is too old (>= 7.19.4)");