diff src/http/modules/ngx_http_gzip_filter_module.c @ 58:b55cbf18157e NGINX_0_1_29

nginx 0.1.29 *) Feature: the ngx_http_ssi_module supports "include virtual" command. *) Feature: the ngx_http_ssi_module supports the condition command like 'if expr="$NAME"' and "else" and "endif" commands. Only one nested level is supported. *) Feature: the ngx_http_ssi_module supports the DATE_LOCAL and DATE_GMT variables and "config timefmt" command. *) Feature: the "ssi_ignore_recycled_buffers" directive. *) Bugfix: the "echo" command did not show the default value for the empty QUERY_STRING variable. *) Change: the ngx_http_proxy_module was rewritten. *) Feature: the "proxy_redirect", "proxy_pass_request_headers", "proxy_pass_request_body", and "proxy_method" directives. *) Feature: the "proxy_set_header" directive. The "proxy_x_var" was canceled and must be replaced with the proxy_set_header directive. *) Change: the "proxy_preserve_host" is canceled and must be replaced with the "proxy_set_header Host $host" and the "proxy_redirect off" directives, the "proxy_set_header Host $host:$proxy_port" directive and the appropriate proxy_redirect directives. *) Change: the "proxy_set_x_real_ip" is canceled and must be replaced with the "proxy_set_header X-Real-IP $remote_addr" directive. *) Change: the "proxy_add_x_forwarded_for" is canceled and must be replaced with the "proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for" directive. *) Change: the "proxy_set_x_url" is canceled and must be replaced with the "proxy_set_header X-URL http://$host:$server_port$request_uri" directive. *) Feature: the "fastcgi_param" directive. *) Change: the "fastcgi_root", "fastcgi_set_var" and "fastcgi_params" directive are canceled and must be replaced with the fastcgi_param directives. *) Feature: the "index" directive can use the variables. *) Feature: the "index" directive can be used at http and server levels. *) Change: the last index only in the "index" directive can be absolute. *) Feature: the "rewrite" directive can use the variables. *) Feature: the "internal" directive. *) Feature: the CONTENT_LENGTH, CONTENT_TYPE, REMOTE_PORT, SERVER_ADDR, SERVER_PORT, SERVER_PROTOCOL, DOCUMENT_ROOT, SERVER_NAME, REQUEST_METHOD, REQUEST_URI, and REMOTE_USER variables. *) Change: nginx now passes the invalid lines in a client request headers or a backend response header. *) Bugfix: if the backend did not transfer response for a long time and the "send_timeout" was less than "proxy_read_timeout", then nginx returned the 408 response. *) Bugfix: the segmentation fault was occurred if the backend sent an invalid line in response header; bug appeared in 0.1.26. *) Bugfix: the segmentation fault may occurred in FastCGI fault tolerance configuration. *) Bugfix: the "expires" directive did not remove the previous "Expires" and "Cache-Control" headers. *) Bugfix: nginx did not take into account trailing dot in "Host" header line. *) Bugfix: the ngx_http_auth_module did not work under Linux. *) Bugfix: the rewrite directive worked incorrectly, if the arguments were in a request. *) Bugfix: nginx could not be built on MacOS X.
author Igor Sysoev <http://sysoev.ru>
date Thu, 12 May 2005 00:00:00 +0400
parents 72eb30262aac
children 0790a8599248
line wrap: on
line diff
--- a/src/http/modules/ngx_http_gzip_filter_module.c
+++ b/src/http/modules/ngx_http_gzip_filter_module.c
@@ -207,7 +207,8 @@ static ngx_command_t  ngx_http_gzip_filt
 
 
 static ngx_http_module_t  ngx_http_gzip_filter_module_ctx = {
-    ngx_http_gzip_add_log_formats,         /* pre conf */
+    ngx_http_gzip_add_log_formats,         /* preconfiguration */
+    NULL,                                  /* postconfiguration */
 
     NULL,                                  /* create main configuration */
     NULL,                                  /* init main configuration */
@@ -221,7 +222,7 @@ static ngx_http_module_t  ngx_http_gzip_
 
 
 ngx_module_t  ngx_http_gzip_filter_module = {
-    NGX_MODULE,
+    NGX_MODULE_V1,
     &ngx_http_gzip_filter_module_ctx,      /* module context */
     ngx_http_gzip_filter_commands,         /* module directives */
     NGX_HTTP_MODULE,                       /* module type */
@@ -257,6 +258,11 @@ struct gztrailer {
 #endif
 
 
+static ngx_str_t  ngx_http_gzip_no_cache = ngx_string("no-cache");
+static ngx_str_t  ngx_http_gzip_no_store = ngx_string("no-store");
+static ngx_str_t  ngx_http_gzip_private = ngx_string("private");
+
+
 static ngx_http_output_header_filter_pt  ngx_http_next_header_filter;
 static ngx_http_output_body_filter_pt    ngx_http_next_body_filter;
 
@@ -276,8 +282,9 @@ ngx_http_gzip_header_filter(ngx_http_req
             && r->headers_out.status != NGX_HTTP_FORBIDDEN
             && r->headers_out.status != NGX_HTTP_NOT_FOUND)
         || r->header_only
+        || r->main
         || r->http_version < conf->http_version
-        || r->headers_out.content_type == NULL
+        || r->headers_out.content_type.len == 0
         || (r->headers_out.content_encoding
             && r->headers_out.content_encoding->value.len)
         || r->headers_in.accept_encoding == NULL
@@ -294,8 +301,8 @@ ngx_http_gzip_header_filter(ngx_http_req
     type = conf->types->elts;
 
     for (i = 0; i < conf->types->nelts; i++) {
-        if (r->headers_out.content_type->value.len >= type[i].name.len
-            && ngx_strncasecmp(r->headers_out.content_type->value.data, 
+        if (r->headers_out.content_type.len >= type[i].name.len
+            && ngx_strncasecmp(r->headers_out.content_type.data, 
                                type[i].name.data, type[i].name.len) == 0)
         {
             found = 1;
@@ -346,6 +353,7 @@ ngx_http_gzip_header_filter(ngx_http_req
         return NGX_ERROR;
     }
 
+    r->headers_out.content_encoding->hash = 1;
     r->headers_out.content_encoding->key.len = sizeof("Content-Encoding") - 1;
     r->headers_out.content_encoding->key.data = (u_char *) "Content-Encoding";
     r->headers_out.content_encoding->value.len = sizeof("gzip") - 1;
@@ -353,10 +361,12 @@ ngx_http_gzip_header_filter(ngx_http_req
 
     ctx->length = r->headers_out.content_length_n;
     r->headers_out.content_length_n = -1;
+
     if (r->headers_out.content_length) {
-        r->headers_out.content_length->key.len = 0;
+        r->headers_out.content_length->hash = 0;
         r->headers_out.content_length = NULL;
     }
+
     r->filter_need_in_memory = 1;
 
     return ngx_http_next_header_filter(r);
@@ -404,22 +414,25 @@ ngx_http_gzip_proxied(ngx_http_request_t
         return NGX_DECLINED;
     }
 
-    if (r->headers_out.cache_control) {
+    if (r->headers_out.cache_control.elts) {
 
         if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_CACHE)
-            && ngx_strstr(r->headers_out.cache_control->value.data, "no-cache"))
+            && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
+                   &ngx_http_gzip_no_cache, NULL) >= 0)
         {
             return NGX_OK;
         }
 
         if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_NO_STORE)
-            && ngx_strstr(r->headers_out.cache_control->value.data, "no-store"))
+            && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
+                   &ngx_http_gzip_no_store, NULL) >= 0)
         {
             return NGX_OK;
         }
 
         if ((conf->proxied & NGX_HTTP_GZIP_PROXIED_PRIVATE)
-            && ngx_strstr(r->headers_out.cache_control->value.data, "private"))
+            && ngx_http_parse_multi_header_lines(&r->headers_out.cache_control,
+                   &ngx_http_gzip_private, NULL) >= 0)
         {
             return NGX_OK;
         }
@@ -484,8 +497,8 @@ ngx_http_gzip_body_filter(ngx_http_reque
          * and do not wait while a whole response will be sent to a client.
          *
          * 8K is for zlib deflate_state, it takes
-         *  * 5816 bytes on x86 and sparc64 (32-bit mode)
-         *  * 5920 bytes on amd64 and sparc64
+         *  *) 5816 bytes on i386 and sparc64 (32-bit mode)
+         *  *) 5920 bytes on amd64 and sparc64
          */
 
         ctx->allocated = 8192 + (1 << (wbits + 2)) + (1 << (memlevel + 9));
@@ -696,7 +709,8 @@ ngx_http_gzip_body_filter(ngx_http_reque
 
             if (ctx->flush == Z_SYNC_FLUSH) {
 
-                ctx->out_buf->flush = 0;
+                ctx->zstream.avail_out = 0;
+                ctx->out_buf->flush = 1;
                 ctx->flush = Z_NO_FLUSH;
 
                 cl = ngx_alloc_chain_link(r->pool);