Mercurial > hg > nginx-vendor-current
diff src/http/ngx_http_postpone_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 | |
| children | 0790a8599248 |
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new file mode 100644 --- /dev/null +++ b/src/http/ngx_http_postpone_filter_module.c @@ -0,0 +1,126 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_http.h> + + +static ngx_int_t ngx_http_postpone_filter_init(ngx_cycle_t *cycle); + + +static ngx_http_module_t ngx_http_postpone_filter_module_ctx = { + NULL, /* preconfiguration */ + NULL, /* 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_postpone_filter_module = { + NGX_MODULE_V1, + &ngx_http_postpone_filter_module_ctx, /* module context */ + NULL, /* module directives */ + NGX_HTTP_MODULE, /* module type */ + ngx_http_postpone_filter_init, /* init module */ + NULL /* init process */ +}; + + +static ngx_http_output_body_filter_pt ngx_http_next_filter; + + +static ngx_int_t +ngx_http_postpone_filter(ngx_http_request_t *r, ngx_chain_t *in) +{ + ngx_int_t rc; + ngx_chain_t *out; + ngx_http_postponed_request_t *pr, **ppr; + + if (r->connection->write->error) { + return NGX_ERROR; + } + + ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http postpone filter \"%V\" %p", &r->uri, in); + + if (r != r->connection->data || (r->postponed && in)) { + + if (r->postponed) { + for (pr = r->postponed; pr->next; pr = pr->next) { /* void */ } + + ppr = pr->request ? &pr->next : NULL; + + } else { + ppr = &r->postponed; +#if (NGX_SUPPRESS_WARN) + pr = NULL; +#endif + } + + if (ppr) { + pr = ngx_palloc(r->pool, sizeof(ngx_http_postponed_request_t)); + if (pr == NULL) { + return NGX_ERROR; + } + + *ppr = pr; + + pr->request = NULL; + pr->out = NULL; + pr->next = NULL; + } + + if (ngx_chain_add_copy(r->pool, &pr->out, in) == NGX_ERROR) { + return NGX_ERROR; + } + + if (r != r->connection->data || r->postponed->request) { + return NGX_AGAIN; + } + } + + if (r->postponed) { + out = r->postponed->out; + r->postponed = r->postponed->next; + + } else { + out = in; + } + + if (out == NULL && r->out == NULL) { + return NGX_OK; + } + + ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, + "http postpone filter out \"%V\"", &r->uri); + + rc = ngx_http_next_filter(r->main ? r->main : r, out); + + if (rc == NGX_ERROR) { + /* NGX_ERROR may be returned by any filter */ + r->connection->write->error = 1; + } + + return rc; +} + + +static ngx_int_t +ngx_http_postpone_filter_init(ngx_cycle_t *cycle) +{ + ngx_http_next_filter = ngx_http_top_body_filter; + ngx_http_top_body_filter = ngx_http_postpone_filter; + + return NGX_OK; +}