Merge branch 'v1.7_proxy' into maint/v1.7

Author: ethomson

src/libgit2/transports/http.c

@@ -335,9 +335,15 @@ static int lookup_proxy(
 	}
 
 	if (!proxy ||
-	    (error = git_net_url_parse(&transport->proxy.url, proxy)) < 0)
+	    (error = git_net_url_parse_http(&transport->proxy.url, proxy)) < 0)
 		goto done;
 
+	if (!git_net_url_valid(&transport->proxy.url)) {
+		git_error_set(GIT_ERROR_HTTP, "invalid URL: '%s'", proxy);
+		error = -1;
+		goto done;
+	}
+
 	*out_use = true;
 
 done:

src/libgit2/transports/httpclient.c

@@ -837,6 +837,11 @@ GIT_INLINE(int) server_setup_from_url(
 	git_http_server *server,
 	git_net_url *url)
 {
+	GIT_ASSERT_ARG(url);
+	GIT_ASSERT_ARG(url->scheme);
+	GIT_ASSERT_ARG(url->host);
+	GIT_ASSERT_ARG(url->port);
+
 	if (!server->url.scheme || strcmp(server->url.scheme, url->scheme) ||
 	    !server->url.host || strcmp(server->url.host, url->host) ||
 	    !server->url.port || strcmp(server->url.port, url->port)) {

src/libgit2/transports/winhttp.c

@@ -443,10 +443,10 @@ static int winhttp_stream_connect(winhttp_stream *s)
 
 		git_net_url_dispose(&t->proxy.url);
 
-		if ((error = git_net_url_parse(&t->proxy.url, proxy_url)) < 0)
+		if ((error = git_net_url_parse_http(&t->proxy.url, proxy_url)) < 0)
 			goto on_error;
 
-		if (strcmp(t->proxy.url.scheme, "http") != 0 && strcmp(t->proxy.url.scheme, "https") != 0) {
+		if (!git_net_url_valid(&t->proxy.url)) {
 			git_error_set(GIT_ERROR_HTTP, "invalid URL: '%s'", proxy_url);
 			error = -1;
 			goto on_error;