HTTP: compress: added "compress" action.

There are still no supported encodings.  This is just infrastructure for
the next commits, which will add gzip compression.

Signed-off-by: Alejandro Colomar <alx@nginx.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

1 files changed, 88 insertions, 0 deletions

diff --git a/src/nxt_http_compress.c b/src/nxt_http_compress.c
new file mode 100644
index 00000000..0f3d8a89
--- /dev/null
+++ b/src/nxt_http_compress.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) Alejandro Colomar
+ * Copyright (C) NGINX, Inc.
+ */
+
+
+#include "nxt_http_compress.h"
+
+#include <stddef.h>
+
+#include <nxt_unit_cdefs.h>
+
+#include "nxt_clang.h"
+#include "nxt_conf.h"
+#include "nxt_errno.h"
+#include "nxt_http.h"
+#include "nxt_list.h"
+#include "nxt_main.h"
+#include "nxt_mp.h"
+#include "nxt_router.h"
+#include "nxt_string.h"
+#include "nxt_types.h"
+
+
+static nxt_conf_map_t  nxt_http_compress_conf[] = {
+    {
+        nxt_string("encoding"),
+        NXT_CONF_MAP_STR,
+        offsetof(nxt_http_compress_conf_t, encoding),
+    },
+};
+
+
+nxt_int_t
+nxt_http_compress_init(nxt_router_conf_t *rtcf, nxt_http_action_t *action,
+    nxt_http_action_conf_t *acf)
+{
+    nxt_mp_t                  *mp;
+    nxt_int_t                 ret;
+    nxt_http_compress_conf_t  *conf;
+
+    mp = rtcf->mem_pool;
+
+    conf = nxt_mp_zget(mp, sizeof(nxt_http_compress_conf_t));
+    if (nxt_slow_path(conf == NULL)) {
+        return NXT_ERROR;
+    }
+
+    ret = nxt_conf_map_object(mp, acf->compress, nxt_http_compress_conf,
+                              nxt_nitems(nxt_http_compress_conf), conf);
+    if (nxt_slow_path(ret == NXT_ERROR)) {
+        return NXT_ERROR;
+    }
+
+    if (0) {
+
+    } else {
+        return NXT_ERROR;
+    }
+
+    action->compress = conf;
+
+    return NXT_OK;
+}
+
+
+nxt_int_t
+nxt_http_compress_append_field(nxt_task_t *task, nxt_http_request_t *r,
+    nxt_str_t *field, nxt_str_t *value)
+{
+    nxt_http_field_t  *f;
+
+    f = nxt_list_add(r->resp.fields);
+    if (nxt_slow_path(f == NULL)) {
+        return NXT_ERROR;
+    }
+
+    f->hash = 0;
+    f->skip = 0;
+    f->hopbyhop = 0;
+
+    f->name_length = field->length;
+    f->value_length = value->length;
+    f->name = field->start;
+    f->value = value->start;
+
+    return NXT_OK;
+}