ngx-live: store_s3_put_add_header directive

add the ability to set custom headers in S3 PUT requests.

Author: erankor

nginx-live-module/README.md

@@ -1620,6 +1620,14 @@ Defines the parameters of an S3 bucket used for persistence.
 Enables persistence using the specified S3 bucket.
 The name parameter must match the name of a previously defined `store_s3_block` block.
 
+#### store_s3_put_add_header
+* **syntax**: `store_s3_put_add_header name value;`
+* **default**: ``
+* **context**: `live`, `preset`
+
+Adds an HTTP header to PUT requests sent to S3.
+The header value can contain variables.
+
 #### url
 * **syntax**: `url str;`
 * **default**: ``

nginx-live-module/src/ngx_live_script.h

@@ -14,6 +14,12 @@
 #include "ngx_live.h"
 
 
+#define ngx_live_null_complex_value                                          \
+    { ngx_null_string, 0, NULL, NULL, { 0 } }
+#define ngx_live_static_complex_value(v)                                     \
+    { ngx_string(v), 0, NULL, NULL, { 0 } }
+
+
 typedef struct {
     u_char                       *ip;
     u_char                       *pos;

nginx-live-module/src/persist/ngx_live_persist.c

@@ -291,6 +291,7 @@ ngx_live_persist_write_file(ngx_live_channel_t *channel,
 
     request.pool = pool;
     request.channel = channel;
+    request.vctx = vctx;
     request.size = size;
     request.handler = handler;
     request.data = ctx;

nginx-live-module/src/persist/ngx_live_store.h

@@ -60,6 +60,7 @@ typedef void (*ngx_live_store_write_handler_pt)(void *data, ngx_int_t rc);
 typedef struct {
     ngx_pool_t                       *pool;
     ngx_live_channel_t               *channel;
+    ngx_live_variables_ctx_t         *vctx;
     ngx_str_t                         path;
     ngx_chain_t                      *cl;
     size_t                            size;