GopherProxy

	Add target prefix mapping - quark - quark web server
	git clone git://git.suckless.org/quark
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	---
	commit 7b7f166dd58b572989d3980f973d9ed88325ece8
	parent 02d6ae5a5714ad24ea0d56a1d575c3dc72bb6949
	Author: Laslo Hunhold <[email protected]>
	Date: Tue, 27 Feb 2018 12:43:05 +0100

	Add target prefix mapping

	This allows e.g. to redirect when a directory has been moved.

	Diffstat:
	M config.def.h \| 10 ++++++++++
	M http.c \| 18 ++++++++++++++++++

	2 files changed, 28 insertions(+), 0 deletions(-)
	---
	diff --git a/config.def.h b/config.def.h
	@@ -25,6 +25,16 @@ static struct {
	{ "example.org", "old\\.example\\.org", "/", …
	};

	+/* target prefix mapping */
	+static const struct {
	+ const char *vhost;
	+ const char *from;
	+ const char *to;
	+} map[] = {
	+ /* canonical host from to */
	+ { "example.org", "/old/path/to/dir", "/new/path/to/dir" },
	+};
	+
	/* mime-types */
	static const struct {
	char *ext;
	diff --git a/http.c b/http.c
	@@ -351,6 +351,24 @@ http_send_response(int fd, struct request *r)
	}
	}

	+ /* apply target prefix mapping */
	+ for (i = 0; i < LEN(map); i++) {
	+ len = strlen(map[i].from);
	+ if (!strncmp(realtarget, map[i].from, len)) {
	+ /* match canonical host if vhosts are enabled */
	+ if (vhosts && strcmp(map[i].vhost, vhostmatch)) {
	+ continue;
	+ }
	+
	+ /* swap out target prefix */
	+ if (snprintf(realtarget, sizeof(realtarget), "%s%s", m…
	+ realtarget + len) >= sizeof(realtarget)) {
	+ return http_send_status(fd, S_REQUEST_TOO_LARG…
	+ }
	+ break;
	+ }
	+ }
	+
	/* normalize target */
	if (normabspath(realtarget)) {
	return http_send_status(fd, S_BAD_REQUEST);