Mercurial > hg > nginx-vendor-0-6
view src/http/modules/ngx_http_not_modified_filter_module.c @ 378:fc497c1dfb7c NGINX_0_6_33
nginx 0.6.33
*) Feature: now nginx returns the 405 status code for POST method
requesting a static file only if the file exists.
*) Workaround: compatibility with glibc 2.3.
Thanks to Eric Benson and Maxim Dounin.
*) Bugfix: the resolver did not understand big DNS responses.
Thanks to Zyb.
*) Bugfix: in HTTPS mode requests might fail with the "bad write retry"
error.
*) Bugfix: the ngx_http_charset_module did not understand quoted
charset name received from backend.
*) Bugfix: if the "max_fails=0" parameter was used in upstream with
several servers, then a worker process exited on a SIGFPE signal.
Thanks to Maxim Dounin.
*) Bugfix: the $r->header_in() method did not return value of the
"Host", "User-Agent", and "Connection" request header lines; the bug
had appeared in 0.6.32.
*) Bugfix: a full response was returned for request method HEAD while
redirection via an "error_page" directive.
*) Bugfix: if a directory has search only rights and the first index
file was absent, then nginx returned the 500 status code.
*) Bugfix: of recursive error_page for 500 status code.
author | Igor Sysoev <http://sysoev.ru> |
---|---|
date | Thu, 20 Nov 2008 00:00:00 +0300 |
parents | 05693816539c |
children | 09b703ae3ba5 |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> #include <ngx_http.h> static ngx_int_t ngx_http_not_modified_filter_init(ngx_conf_t *cf); static ngx_http_module_t ngx_http_not_modified_filter_module_ctx = { NULL, /* preconfiguration */ ngx_http_not_modified_filter_init, /* postconfiguration */ NULL, /* create main configuration */ NULL, /* init main configuration */ NULL, /* create server configuration */ NULL, /* merge server configuration */ NULL, /* create location configuration */ NULL /* merge location configuration */ }; ngx_module_t ngx_http_not_modified_filter_module = { NGX_MODULE_V1, &ngx_http_not_modified_filter_module_ctx, /* module context */ NULL, /* module directives */ NGX_HTTP_MODULE, /* module type */ NULL, /* init master */ NULL, /* init module */ NULL, /* init process */ NULL, /* init thread */ NULL, /* exit thread */ NULL, /* exit process */ NULL, /* exit master */ NGX_MODULE_V1_PADDING }; static ngx_http_output_header_filter_pt ngx_http_next_header_filter; static ngx_int_t ngx_http_not_modified_header_filter(ngx_http_request_t *r) { time_t ims; if (r->headers_out.status != NGX_HTTP_OK || r != r->main || r->headers_in.if_modified_since == NULL || r->headers_out.last_modified_time == -1) { return ngx_http_next_header_filter(r); } ims = ngx_http_parse_time(r->headers_in.if_modified_since->value.data, r->headers_in.if_modified_since->value.len); ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "http ims:%d lm:%d", ims, r->headers_out.last_modified_time); /* * I think that the equality of the dates is correcter */ if (ims == r->headers_out.last_modified_time) { r->headers_out.status = NGX_HTTP_NOT_MODIFIED; r->headers_out.content_type.len = 0; ngx_http_clear_content_length(r); ngx_http_clear_accept_ranges(r); } return ngx_http_next_header_filter(r); } static ngx_int_t ngx_http_not_modified_filter_init(ngx_conf_t *cf) { ngx_http_next_header_filter = ngx_http_top_header_filter; ngx_http_top_header_filter = ngx_http_not_modified_header_filter; return NGX_OK; }