Changes with nginx 1.1.18 28 Mar 2012v1.1.18

*) Change: keepalive connections are no longer disabled for Safari by
default.

*) Feature: the $connection_requests variable.

*) Feature: $tcpinfo_rtt, $tcpinfo_rttvar, $tcpinfo_snd_cwnd and
$tcpinfo_rcv_space variables.

*) Feature: the "worker_cpu_affinity" directive now works on FreeBSD.

*) Feature: the "xslt_param" and "xslt_string_param" directives.
Thanks to Samuel Behan.

*) Bugfix: in configure tests.
Thanks to Piotr Sikora.

*) Bugfix: in the ngx_http_xslt_filter_module.

*) Bugfix: nginx could not be built on Debian GNU/Hurd.

6 files changed, 219 insertions, 82 deletions

diff --git a/src/http/modules/ngx_http_headers_filter_module.c b/src/http/modules/ngx_http_headers_filter_module.c
index e6cf3f423..938993434 100644
--- a/src/http/modules/ngx_http_headers_filter_module.c
+++ b/src/http/modules/ngx_http_headers_filter_module.c
@@ -25,23 +25,25 @@ typedef struct {
 
 struct ngx_http_header_val_s {
     ngx_http_complex_value_t   value;
-    ngx_uint_t                 hash;
     ngx_str_t                  key;
     ngx_http_set_header_pt     handler;
     ngx_uint_t                 offset;
 };
 
 
-#define NGX_HTTP_EXPIRES_OFF       0
-#define NGX_HTTP_EXPIRES_EPOCH     1
-#define NGX_HTTP_EXPIRES_MAX       2
-#define NGX_HTTP_EXPIRES_ACCESS    3
-#define NGX_HTTP_EXPIRES_MODIFIED  4
-#define NGX_HTTP_EXPIRES_DAILY     5
+typedef enum {
+    NGX_HTTP_EXPIRES_OFF,
+    NGX_HTTP_EXPIRES_EPOCH,
+    NGX_HTTP_EXPIRES_MAX,
+    NGX_HTTP_EXPIRES_ACCESS,
+    NGX_HTTP_EXPIRES_MODIFIED,
+    NGX_HTTP_EXPIRES_DAILY,
+    NGX_HTTP_EXPIRES_UNSET
+} ngx_http_expires_t;
 
 
 typedef struct {
-    ngx_uint_t               expires;
+    ngx_http_expires_t       expires;
     time_t                   expires_time;
     ngx_array_t             *headers;
 } ngx_http_headers_conf_t;
@@ -51,6 +53,8 @@ static ngx_int_t ngx_http_set_expires(ngx_http_request_t *r,
     ngx_http_headers_conf_t *conf);
 static ngx_int_t ngx_http_add_cache_control(ngx_http_request_t *r,
     ngx_http_header_val_t *hv, ngx_str_t *value);
+static ngx_int_t ngx_http_add_header(ngx_http_request_t *r,
+    ngx_http_header_val_t *hv, ngx_str_t *value);
 static ngx_int_t ngx_http_set_last_modified(ngx_http_request_t *r,
     ngx_http_header_val_t *hv, ngx_str_t *value);
 
@@ -313,7 +317,7 @@ ngx_http_add_header(ngx_http_request_t *r, ngx_http_header_val_t *hv,
             return NGX_ERROR;
         }
 
-        h->hash = hv->hash;
+        h->hash = 1;
         h->key = hv->key;
         h->value = *value;
     }
@@ -366,16 +370,11 @@ ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv,
 {
     ngx_table_elt_t  *h, **old;
 
-    if (hv->offset) {
-        old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset);
-
-    } else {
-        old = NULL;
-    }
+    old = (ngx_table_elt_t **) ((char *) &r->headers_out + hv->offset);
 
     r->headers_out.last_modified_time = -1;
 
-    if (old == NULL || *old == NULL) {
+    if (*old == NULL) {
 
         if (value->len == 0) {
             return NGX_OK;
@@ -386,6 +385,8 @@ ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv,
             return NGX_ERROR;
         }
 
+        *old = h;
+
     } else {
         h = *old;
 
@@ -395,7 +396,7 @@ ngx_http_set_last_modified(ngx_http_request_t *r, ngx_http_header_val_t *hv,
         }
     }
 
-    h->hash = hv->hash;
+    h->hash = 1;
     h->key = hv->key;
     h->value = *value;
 
@@ -420,7 +421,7 @@ ngx_http_headers_create_conf(ngx_conf_t *cf)
      *     conf->expires_time = 0;
      */
 
-    conf->expires = NGX_CONF_UNSET_UINT;
+    conf->expires = NGX_HTTP_EXPIRES_UNSET;
 
     return conf;
 }
@@ -432,11 +433,11 @@ ngx_http_headers_merge_conf(ngx_conf_t *cf, void *parent, void *child)
     ngx_http_headers_conf_t *prev = parent;
     ngx_http_headers_conf_t *conf = child;
 
-    if (conf->expires == NGX_CONF_UNSET_UINT) {
+    if (conf->expires == NGX_HTTP_EXPIRES_UNSET) {
         conf->expires = prev->expires;
         conf->expires_time = prev->expires_time;
 
-        if (conf->expires == NGX_CONF_UNSET_UINT) {
+        if (conf->expires == NGX_HTTP_EXPIRES_UNSET) {
             conf->expires = NGX_HTTP_EXPIRES_OFF;
         }
     }
@@ -467,7 +468,7 @@ ngx_http_headers_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     ngx_uint_t   minus, n;
     ngx_str_t   *value;
 
-    if (hcf->expires != NGX_CONF_UNSET_UINT) {
+    if (hcf->expires != NGX_HTTP_EXPIRES_UNSET) {
         return "is duplicate";
     }
 
@@ -576,7 +577,6 @@ ngx_http_headers_add(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
         return NGX_CONF_ERROR;
     }
 
-    hv->hash = 1;
     hv->key = value[1];
     hv->handler = ngx_http_add_header;
     hv->offset = 0;
diff --git a/src/http/modules/ngx_http_log_module.c b/src/http/modules/ngx_http_log_module.c
index 2452f23b3..2d412853b 100644
--- a/src/http/modules/ngx_http_log_module.c
+++ b/src/http/modules/ngx_http_log_module.c
@@ -80,6 +80,8 @@ static ssize_t ngx_http_log_script_write(ngx_http_request_t *r,
 
 static u_char *ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
     ngx_http_log_op_t *op);
+static u_char *ngx_http_log_connection_requests(ngx_http_request_t *r,
+    u_char *buf, ngx_http_log_op_t *op);
 static u_char *ngx_http_log_pipe(ngx_http_request_t *r, u_char *buf,
     ngx_http_log_op_t *op);
 static u_char *ngx_http_log_time(ngx_http_request_t *r, u_char *buf,
@@ -193,6 +195,8 @@ static ngx_str_t  ngx_http_combined_fmt =
 
 static ngx_http_log_var_t  ngx_http_log_vars[] = {
     { ngx_string("connection"), NGX_ATOMIC_T_LEN, ngx_http_log_connection },
+    { ngx_string("connection_requests"), NGX_INT_T_LEN,
+                          ngx_http_log_connection_requests },
     { ngx_string("pipe"), 1, ngx_http_log_pipe },
     { ngx_string("time_local"), sizeof("28/Sep/1970:12:00:00 +0600") - 1,
                           ngx_http_log_time },
@@ -501,7 +505,15 @@ static u_char *
 ngx_http_log_connection(ngx_http_request_t *r, u_char *buf,
     ngx_http_log_op_t *op)
 {
-    return ngx_sprintf(buf, "%ui", r->connection->number);
+    return ngx_sprintf(buf, "%uA", r->connection->number);
+}
+
+
+static u_char *
+ngx_http_log_connection_requests(ngx_http_request_t *r, u_char *buf,
+    ngx_http_log_op_t *op)
+{
+    return ngx_sprintf(buf, "%ui", r->connection->requests);
 }
 
 
diff --git a/src/http/modules/ngx_http_realip_module.c b/src/http/modules/ngx_http_realip_module.c
index bb606beb7..c54c2ffa1 100644
--- a/src/http/modules/ngx_http_realip_module.c
+++ b/src/http/modules/ngx_http_realip_module.c
@@ -16,13 +16,7 @@
 
 
 typedef struct {
-    in_addr_t          mask;
-    in_addr_t          addr;
-} ngx_http_realip_from_t;
-
-
-typedef struct {
-    ngx_array_t       *from;     /* array of ngx_http_realip_from_t */
+    ngx_array_t       *from;     /* array of ngx_in_cidr_t */
     ngx_uint_t         type;
     ngx_uint_t         hash;
     ngx_str_t          header;
@@ -114,9 +108,9 @@ ngx_http_realip_handler(ngx_http_request_t *r)
     ngx_list_part_t             *part;
     ngx_table_elt_t             *header;
     struct sockaddr_in          *sin;
+    ngx_in_cidr_t               *from;
     ngx_connection_t            *c;
     ngx_http_realip_ctx_t       *ctx;
-    ngx_http_realip_from_t      *from;
     ngx_http_realip_loc_conf_t  *rlcf;
 
     ctx = ngx_http_get_module_ctx(r, ngx_http_realip_module);
@@ -317,7 +311,7 @@ ngx_http_realip_from(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     ngx_int_t                rc;
     ngx_str_t               *value;
     ngx_cidr_t               cidr;
-    ngx_http_realip_from_t  *from;
+    ngx_in_cidr_t           *from;
 
     value = cf->args->elts;
 
@@ -332,7 +326,7 @@ ngx_http_realip_from(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 
     if (rlcf->from == NULL) {
         rlcf->from = ngx_array_create(cf->pool, 2,
-                                      sizeof(ngx_http_realip_from_t));
+                                      sizeof(ngx_in_cidr_t));
         if (rlcf->from == NULL) {
             return NGX_CONF_ERROR;
         }
diff --git a/src/http/modules/ngx_http_split_clients_module.c b/src/http/modules/ngx_http_split_clients_module.c
index f2160b149..6b1a8155a 100644
--- a/src/http/modules/ngx_http_split_clients_module.c
+++ b/src/http/modules/ngx_http_split_clients_module.c
@@ -97,7 +97,7 @@ ngx_http_split_clients_variable(ngx_http_request_t *r,
         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                        "http split: %uD %uD", hash, part[i].percent);
 
-        if (hash < part[i].percent) {
+        if (hash < part[i].percent || part[i].percent == 0) {
             *v = part[i].value;
             return NGX_OK;
         }
@@ -111,8 +111,9 @@ static char *
 ngx_conf_split_clients_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
 {
     char                                *rv;
+    uint32_t                             sum, last;
     ngx_str_t                           *value, name;
-    ngx_uint_t                           i, sum, last;
+    ngx_uint_t                           i;
     ngx_conf_t                           save;
     ngx_http_variable_t                 *var;
     ngx_http_split_clients_ctx_t        *ctx;
@@ -175,19 +176,15 @@ ngx_conf_split_clients_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     for (i = 0; i < ctx->parts.nelts; i++) {
         sum = part[i].percent ? sum + part[i].percent : 10000;
         if (sum > 10000) {
-           ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
-                              "percent sum is more than 100%%");
-           return NGX_CONF_ERROR;
+            ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
+                               "percent sum is more than 100%%");
+            return NGX_CONF_ERROR;
         }
 
         if (part[i].percent) {
-            part[i].percent = (uint32_t)
-                                 (last + 0xffffffff / 10000 * part[i].percent);
-        } else {
-            part[i].percent = 0xffffffff;
+            last += part[i].percent * (uint64_t) 0xffffffff / 10000;
+            part[i].percent = last;
         }
-
-        last = part[i].percent;
     }
 
     return rv;
diff --git a/src/http/modules/ngx_http_xslt_filter_module.c b/src/http/modules/ngx_http_xslt_filter_module.c
index f86c30381..4309a4489 100644
--- a/src/http/modules/ngx_http_xslt_filter_module.c
+++ b/src/http/modules/ngx_http_xslt_filter_module.c
@@ -14,6 +14,7 @@
 #include <libxslt/xslt.h>
 #include <libxslt/xsltInternals.h>
 #include <libxslt/transform.h>
+#include <libxslt/variables.h>
 #include <libxslt/xsltutils.h>
 
 #if (NGX_HAVE_EXSLT)
@@ -27,38 +28,47 @@
 
 
 typedef struct {
-    u_char              *name;
-    void                *data;
+    u_char                    *name;
+    void                      *data;
 } ngx_http_xslt_file_t;
 
 
 typedef struct {
-    ngx_array_t          dtd_files;    /* ngx_http_xslt_file_t */
-    ngx_array_t          sheet_files;  /* ngx_http_xslt_file_t */
+    ngx_array_t                dtd_files;    /* ngx_http_xslt_file_t */
+    ngx_array_t                sheet_files;  /* ngx_http_xslt_file_t */
 } ngx_http_xslt_filter_main_conf_t;
 
 
 typedef struct {
-    xsltStylesheetPtr    stylesheet;
-    ngx_array_t          params;       /* ngx_http_complex_value_t */
+    u_char                    *name;
+    ngx_http_complex_value_t   value;
+    ngx_uint_t                 quote;        /* unsigned  quote:1; */
+} ngx_http_xslt_param_t;
+
+
+typedef struct {
+    xsltStylesheetPtr          stylesheet;
+    ngx_array_t                params;       /* ngx_http_xslt_param_t */
 } ngx_http_xslt_sheet_t;
 
 
 typedef struct {
-    xmlDtdPtr            dtd;
-    ngx_array_t          sheets;       /* ngx_http_xslt_sheet_t */
-    ngx_hash_t           types;
-    ngx_array_t         *types_keys;
+    xmlDtdPtr                  dtd;
+    ngx_array_t                sheets;       /* ngx_http_xslt_sheet_t */
+    ngx_hash_t                 types;
+    ngx_array_t               *types_keys;
+    ngx_array_t               *params;       /* ngx_http_xslt_param_t */
 } ngx_http_xslt_filter_loc_conf_t;
 
 
 typedef struct {
-    xmlDocPtr            doc;
-    xmlParserCtxtPtr     ctxt;
-    ngx_http_request_t  *request;
-    ngx_array_t          params;
+    xmlDocPtr                  doc;
+    xmlParserCtxtPtr           ctxt;
+    xsltTransformContextPtr    transform;
+    ngx_http_request_t        *request;
+    ngx_array_t                params;
 
-    ngx_uint_t           done;         /* unsigned  done:1; */
+    ngx_uint_t                 done;         /* unsigned  done:1; */
 } ngx_http_xslt_filter_ctx_t;
 
 
@@ -76,7 +86,7 @@ static void ngx_cdecl ngx_http_xslt_sax_error(void *data, const char *msg, ...);
 static ngx_buf_t *ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r,
     ngx_http_xslt_filter_ctx_t *ctx);
 static ngx_int_t ngx_http_xslt_params(ngx_http_request_t *r,
-    ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params);
+    ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params, ngx_uint_t final);
 static u_char *ngx_http_xslt_content_type(xsltStylesheetPtr s);
 static u_char *ngx_http_xslt_encoding(xsltStylesheetPtr s);
 static void ngx_http_xslt_cleanup(void *data);
@@ -85,6 +95,8 @@ static char *ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd,
     void *conf);
 static char *ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd,
     void *conf);
+static char *ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd,
+    void *conf);
 static void ngx_http_xslt_cleanup_dtd(void *data);
 static void ngx_http_xslt_cleanup_stylesheet(void *data);
 static void *ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf);
@@ -117,6 +129,20 @@ static ngx_command_t  ngx_http_xslt_filter_commands[] = {
       0,
       NULL },
 
+    { ngx_string("xslt_param"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
+      ngx_http_xslt_param,
+      NGX_HTTP_LOC_CONF_OFFSET,
+      0,
+      NULL },
+
+    { ngx_string("xslt_string_param"),
+      NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
+      ngx_http_xslt_param,
+      NGX_HTTP_LOC_CONF_OFFSET,
+      0,
+      (void *) 1 },
+
     { ngx_string("xslt_types"),
       NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
       ngx_http_types_slot,
@@ -336,15 +362,14 @@ ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
                           "xmlCreatePushParserCtxt() failed");
             return NGX_ERROR;
         }
+        xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD
+                                               |XML_PARSE_NOWARNING);
 
         ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset;
         ctxt->sax->setDocumentLocator = NULL;
-        ctxt->sax->warning = NULL;
         ctxt->sax->error = ngx_http_xslt_sax_error;
         ctxt->sax->fatalError = ngx_http_xslt_sax_error;
         ctxt->sax->_private = ctx;
-        ctxt->replaceEntities = 1;
-        ctxt->loadsubset = 1;
 
         ctx->ctxt = ctxt;
         ctx->request = r;
@@ -469,13 +494,31 @@ ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r,
 
     for (i = 0; i < conf->sheets.nelts; i++) {
 
-        if (ngx_http_xslt_params(r, ctx, &sheet[i].params) != NGX_OK) {
+        ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc);
+        if (ctx->transform == NULL) {
             xmlFreeDoc(doc);
             return NULL;
         }
 
-        res = xsltApplyStylesheet(sheet[i].stylesheet, doc, ctx->params.elts);
+        if (conf->params
+            && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK)
+        {
+            xsltFreeTransformContext(ctx->transform);
+            xmlFreeDoc(doc);
+            return NULL;
+        }
 
+        if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) {
+            xsltFreeTransformContext(ctx->transform);
+            xmlFreeDoc(doc);
+            return NULL;
+        }
+
+        res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc,
+                                      ctx->params.elts, NULL, NULL,
+                                      ctx->transform);
+
+        xsltFreeTransformContext(ctx->transform);
         xmlFreeDoc(doc);
 
         if (res == NULL) {
@@ -565,27 +608,68 @@ ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r,
 
 static ngx_int_t
 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
-    ngx_array_t *params)
+    ngx_array_t *params, ngx_uint_t final)
 {
-    u_char                    *p, *last, *value, *dst, *src, **s;
-    size_t                     len;
-    ngx_uint_t                 i;
-    ngx_str_t                  string;
-    ngx_http_complex_value_t  *param;
+    u_char                 *p, *last, *value, *dst, *src, **s;
+    size_t                  len;
+    ngx_uint_t              i;
+    ngx_str_t               string;
+    ngx_http_xslt_param_t  *param;
 
     param = params->elts;
 
     for (i = 0; i < params->nelts; i++) {
 
-        if (ngx_http_complex_value(r, &param[i], &string) != NGX_OK) {
+        if (ngx_http_complex_value(r, &param[i].value, &string) != NGX_OK) {
             return NGX_ERROR;
         }
 
         ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                        "xslt filter param: \"%s\"", string.data);
 
+        if (param[i].name) {
+
+            ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                           "xslt filter param name: \"%s\"", param[i].name);
+
+            if (param[i].quote) {
+                if (xsltQuoteOneUserParam(ctx->transform, param[i].name,
+                                          string.data)
+                    != 0)
+                {
+                    ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
+                                "xsltQuoteOneUserParam(\"%s\", \"%s\") failed",
+                                param[i].name, string.data);
+                    return NGX_ERROR;
+                }
+
+                continue;
+            }
+
+            s = ngx_array_push(&ctx->params);
+            if (s == NULL) {
+                return NGX_ERROR;
+            }
+
+            *s = param[i].name;
+
+            s = ngx_array_push(&ctx->params);
+            if (s == NULL) {
+                return NGX_ERROR;
+            }
+
+            *s = string.data;
+
+            continue;
+        }
+
+        /*
+         * parse param1=value1:param2=value2 syntax as used by parameters
+         * specified in xslt_stylesheet directives
+         */
+
         p = string.data;
-        last = string.data + string.len - 1;
+        last = string.data + string.len;
 
         while (p && *p) {
 
@@ -641,12 +725,14 @@ ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx,
         }
     }
 
-    s = ngx_array_push(&ctx->params);
-    if (s == NULL) {
-        return NGX_ERROR;
-    }
+    if (final) {
+        s = ngx_array_push(&ctx->params);
+        if (s == NULL) {
+            return NGX_ERROR;
+        }
 
-    *s = NULL;
+        *s = NULL;
+    }
 
     return NGX_OK;
 }
@@ -768,7 +854,7 @@ ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
     ngx_pool_cleanup_t                *cln;
     ngx_http_xslt_file_t              *file;
     ngx_http_xslt_sheet_t             *sheet;
-    ngx_http_complex_value_t          *param;
+    ngx_http_xslt_param_t             *param;
     ngx_http_compile_complex_value_t   ccv;
     ngx_http_xslt_filter_main_conf_t  *xmcf;
 
@@ -837,7 +923,7 @@ found:
     }
 
     if (ngx_array_init(&sheet->params, cf->pool, n - 2,
-                       sizeof(ngx_http_complex_value_t))
+                       sizeof(ngx_http_xslt_param_t))
         != NGX_OK)
     {
         return NGX_CONF_ERROR;
@@ -850,11 +936,12 @@ found:
             return NGX_CONF_ERROR;
         }
 
+        ngx_memzero(param, sizeof(ngx_http_xslt_param_t));
         ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
 
         ccv.cf = cf;
         ccv.value = &value[i];
-        ccv.complex_value = param;
+        ccv.complex_value = &param->value;
         ccv.zero = 1;
 
         if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
@@ -866,6 +953,48 @@ found:
 }
 
 
+static char *
+ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
+{
+    ngx_http_xslt_filter_loc_conf_t  *xlcf = conf;
+
+    ngx_http_xslt_param_t            *param;
+    ngx_http_compile_complex_value_t  ccv;
+    ngx_str_t                        *value;
+
+    value = cf->args->elts;
+
+    if (xlcf->params == NULL) {
+        xlcf->params = ngx_array_create(cf->pool, 2,
+                                        sizeof(ngx_http_xslt_param_t));
+        if (xlcf->params == NULL) {
+            return NGX_CONF_ERROR;
+        }
+    }
+
+    param = ngx_array_push(xlcf->params);
+    if (param == NULL) {
+        return NGX_CONF_ERROR;
+    }
+
+    param->name = value[1].data;
+    param->quote = (cmd->post == NULL) ? 0 : 1;
+
+    ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
+
+    ccv.cf = cf;
+    ccv.value = &value[2];
+    ccv.complex_value = &param->value;
+    ccv.zero = 1;
+
+    if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
+        return NGX_CONF_ERROR;
+    }
+
+    return NGX_CONF_OK;
+}
+
+
 static void
 ngx_http_xslt_cleanup_dtd(void *data)
 {
@@ -925,6 +1054,7 @@ ngx_http_xslt_filter_create_conf(ngx_conf_t *cf)
      *     conf->sheets = { NULL };
      *     conf->types = { NULL };
      *     conf->types_keys = NULL;
+     *     conf->params = NULL;
      */
 
     return conf;
@@ -945,6 +1075,10 @@ ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child)
         conf->sheets = prev->sheets;
     }
 
+    if (conf->params == NULL) {
+        conf->params = prev->params;
+    }
+
     if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types,
                              &prev->types_keys, &prev->types,
                              ngx_http_xslt_default_types)
diff --git a/src/http/modules/perl/nginx.pm b/src/http/modules/perl/nginx.pm
index 7a9cd4ed7..364f70897 100644
--- a/src/http/modules/perl/nginx.pm
+++ b/src/http/modules/perl/nginx.pm
@@ -50,7 +50,7 @@ our @EXPORT = qw(
     HTTP_INSUFFICIENT_STORAGE
 );
 
-our $VERSION = '1.1.17';
+our $VERSION = '1.1.18';
 
 require XSLoader;
 XSLoader::load('nginx', $VERSION);