2005-02-04 03:33:37 +08:00
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/*
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* Copyright (C) Igor Sysoev
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*/
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_http.h>
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typedef struct {
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2005-02-16 21:40:36 +08:00
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ngx_radix_tree_t *tree;
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ngx_pool_t *pool;
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ngx_array_t values;
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2005-02-04 03:33:37 +08:00
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} ngx_http_geo_conf_t;
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static char *ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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static char *ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf);
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static ngx_command_t ngx_http_geo_commands[] = {
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{ ngx_string("geo"),
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NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
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ngx_http_geo_block,
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NGX_HTTP_MAIN_CONF_OFFSET,
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0,
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NULL },
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ngx_null_command
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};
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static ngx_http_module_t ngx_http_geo_module_ctx = {
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nginx-0.1.29-RELEASE import
*) 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; the bug had 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.
2005-05-12 22:58:06 +08:00
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NULL, /* preconfiguration */
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NULL, /* postconfiguration */
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2005-02-04 03:33:37 +08:00
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NULL, /* create main configuration */
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NULL, /* init main configuration */
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NULL, /* create server configuration */
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NULL, /* merge server configuration */
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NULL, /* create location configuration */
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NULL /* merge location configuration */
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};
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ngx_module_t ngx_http_geo_module = {
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nginx-0.1.29-RELEASE import
*) 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; the bug had 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.
2005-05-12 22:58:06 +08:00
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NGX_MODULE_V1,
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2005-02-04 03:33:37 +08:00
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&ngx_http_geo_module_ctx, /* module context */
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ngx_http_geo_commands, /* module directives */
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NGX_HTTP_MODULE, /* module type */
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2005-09-08 22:36:09 +08:00
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NULL, /* init master */
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2005-02-04 03:33:37 +08:00
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NULL, /* init module */
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2005-09-08 22:36:09 +08:00
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NULL, /* init process */
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NULL, /* init thread */
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NULL, /* exit thread */
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NULL, /* exit process */
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NULL, /* exit master */
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NGX_MODULE_V1_PADDING
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2005-02-04 03:33:37 +08:00
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};
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static ngx_http_variable_value_t ngx_http_geo_null_value =
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{ 0, ngx_string("0") };
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/* AF_INET only */
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2005-02-16 21:40:36 +08:00
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static ngx_http_variable_value_t *
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2005-03-19 20:38:37 +08:00
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ngx_http_geo_variable(ngx_http_request_t *r, uintptr_t data)
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2005-02-04 03:33:37 +08:00
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{
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2005-03-19 20:38:37 +08:00
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ngx_radix_tree_t *tree = (ngx_radix_tree_t *) data;
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2005-02-04 03:33:37 +08:00
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2005-02-16 21:40:36 +08:00
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struct sockaddr_in *sin;
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ngx_http_variable_value_t *var;
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2005-02-04 03:33:37 +08:00
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sin = (struct sockaddr_in *) r->connection->sockaddr;
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2005-02-16 21:40:36 +08:00
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ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http geo started");
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var = (ngx_http_variable_value_t *)
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2005-02-04 03:33:37 +08:00
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ngx_radix32tree_find(tree, ntohl(sin->sin_addr.s_addr));
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2005-02-16 21:40:36 +08:00
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ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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"http geo: %V %V", &r->connection->addr_text, &var->text);
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return var;
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2005-02-04 03:33:37 +08:00
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}
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2005-02-16 21:40:36 +08:00
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static char *
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ngx_http_geo_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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2005-02-04 03:33:37 +08:00
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{
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char *rv;
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2005-03-19 20:38:37 +08:00
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ngx_str_t *value, name;
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2005-02-04 03:33:37 +08:00
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ngx_conf_t save;
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ngx_pool_t *pool;
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ngx_radix_tree_t *tree;
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ngx_http_geo_conf_t geo;
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ngx_http_variable_t *var;
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2005-03-19 20:38:37 +08:00
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value = cf->args->elts;
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name = value[1];
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if (name.data[0] != '$') {
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ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
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"\"%V\" variable name should start with '$'",
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&value[1]);
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} else {
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name.len--;
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name.data++;
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2005-02-04 03:33:37 +08:00
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}
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2005-09-30 22:41:25 +08:00
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var = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGABLE);
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2005-03-19 20:38:37 +08:00
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if (var == NULL) {
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2005-02-04 03:33:37 +08:00
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return NGX_CONF_ERROR;
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}
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2005-03-19 20:38:37 +08:00
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tree = ngx_radix_tree_create(cf->pool, -1);
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if (tree == NULL) {
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return NGX_CONF_ERROR;
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}
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2005-02-04 03:33:37 +08:00
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var->handler = ngx_http_geo_variable;
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2005-03-19 20:38:37 +08:00
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var->data = (uintptr_t) tree;
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2005-02-04 03:33:37 +08:00
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/*
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* create the temporary pool of a huge initial size
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* to process quickly a large number of geo lines
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*/
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2005-03-19 20:38:37 +08:00
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pool = ngx_create_pool(512 * 1024, cf->log);
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if (pool == NULL) {
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2005-02-04 03:33:37 +08:00
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return NGX_CONF_ERROR;
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}
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if (ngx_array_init(&geo.values, pool, 512,
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sizeof(ngx_http_variable_value_t *)) == NGX_ERROR)
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{
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ngx_destroy_pool(pool);
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return NGX_CONF_ERROR;
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}
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geo.tree = tree;
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geo.pool = cf->pool;
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save = *cf;
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cf->pool = pool;
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cf->ctx = &geo;
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cf->handler = ngx_http_geo;
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cf->handler_conf = conf;
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rv = ngx_conf_parse(cf, NULL);
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*cf = save;
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ngx_destroy_pool(pool);
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if (ngx_radix32tree_find(tree, 0) != NGX_RADIX_NO_VALUE) {
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return rv;
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}
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if (ngx_radix32tree_insert(tree, 0, 0,
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(uintptr_t) &ngx_http_geo_null_value) == NGX_ERROR)
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{
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return NGX_CONF_ERROR;
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}
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return rv;
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}
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/* AF_INET only */
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2005-02-16 21:40:36 +08:00
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static char *
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ngx_http_geo(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
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2005-02-04 03:33:37 +08:00
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{
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ngx_int_t rc, n;
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ngx_uint_t i;
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ngx_str_t *value, file;
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ngx_inet_cidr_t cidrin;
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ngx_http_geo_conf_t *geo;
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ngx_http_variable_value_t *var, **v;
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geo = cf->ctx;
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if (cf->args->nelts != 2) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"invalid number of the geo parameters");
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return NGX_CONF_ERROR;
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}
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value = cf->args->elts;
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if (ngx_strcmp(value[0].data, "include") == 0) {
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file = value[1];
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if (ngx_conf_full_name(cf->cycle, &file) == NGX_ERROR){
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return NGX_CONF_ERROR;
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}
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ngx_log_debug1(NGX_LOG_DEBUG_CORE, cf->log, 0, "include %s", file.data);
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return ngx_conf_parse(cf, &file);
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}
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if (ngx_strcmp(value[0].data, "default") == 0) {
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cidrin.addr = 0;
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cidrin.mask = 0;
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} else {
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if (ngx_ptocidr(&value[0], &cidrin) == NGX_ERROR) {
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ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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"invalid parameter \"%V\"", &value[0]);
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return NGX_CONF_ERROR;
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}
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cidrin.addr = ntohl(cidrin.addr);
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cidrin.mask = ntohl(cidrin.mask);
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}
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n = ngx_atoi(value[1].data, value[1].len);
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var = NULL;
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v = geo->values.elts;
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if (n == NGX_ERROR) {
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for (i = 0; i < geo->values.nelts; i++) {
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2005-03-19 20:38:37 +08:00
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if (v[i]->text.len != value[1].len) {
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continue;
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}
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if (ngx_strncmp(value[1].data, v[i]->text.data, value[1].len) == 0)
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{
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2005-02-04 03:33:37 +08:00
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var = v[i];
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break;
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}
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}
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} else {
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for (i = 0; i < geo->values.nelts; i++) {
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if (v[i]->value == (ngx_uint_t) n) {
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var = v[i];
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break;
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}
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}
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}
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2005-03-19 20:38:37 +08:00
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if (var == NULL) {
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2005-02-04 03:33:37 +08:00
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var = ngx_palloc(geo->pool, sizeof(ngx_http_variable_value_t));
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if (var == NULL) {
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return NGX_CONF_ERROR;
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}
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var->text.len = value[1].len;
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2005-03-19 20:38:37 +08:00
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var->text.data = ngx_pstrdup(geo->pool, &value[1]);
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if (var->text.data == NULL) {
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2005-02-04 03:33:37 +08:00
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return NGX_CONF_ERROR;
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}
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var->value = (n == NGX_ERROR) ? 0 : n;
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|
|
2005-03-19 20:38:37 +08:00
|
|
|
v = ngx_array_push(&geo->values);
|
|
|
|
if (v == NULL) {
|
2005-02-04 03:33:37 +08:00
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
*v = var;
|
|
|
|
}
|
|
|
|
|
|
|
|
rc = ngx_radix32tree_insert(geo->tree, cidrin.addr, cidrin.mask,
|
|
|
|
(uintptr_t) var);
|
|
|
|
if (rc == NGX_ERROR) {
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rc == NGX_BUSY) {
|
|
|
|
ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "duplicate parameter \"%V\"",
|
|
|
|
&value[0]);
|
|
|
|
return NGX_CONF_ERROR;
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_CONF_OK;
|
|
|
|
}
|