nginx/src/http/ngx_http.c

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#include <ngx_config.h>
#include <ngx_string.h>
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#include <ngx_socket.h>
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#include <ngx_listen.h>
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#include <ngx_http.h>
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#include <ngx_http_config.h>
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#include <ngx_http_core_module.h>
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static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy);
int ngx_http_max_module;
ngx_array_t ngx_http_servers; /* array of ngx_http_core_srv_conf_t */
int ngx_http_post_accept_timeout = 10000;
int ngx_http_connection_pool_size = 16384;
int ngx_http_request_pool_size = 16384;
int ngx_http_client_header_timeout = 20000;
int ngx_http_client_header_buffer_size = 1024;
/* STUB: per location */
int ngx_http_lingering_timeout = 5000;
int ngx_http_lingering_time = 30;
/**/
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ngx_array_t ngx_http_index_handlers;
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int (*ngx_http_top_header_filter) (ngx_http_request_t *r);
static ngx_str_t http_name = ngx_string("http");
static ngx_command_t ngx_http_commands[] = {
{ngx_string("http"),
NGX_CONF_BLOCK|NGX_CONF_NOARGS,
ngx_http_block,
0,
0},
{ngx_string(""), 0, NULL, 0, 0}
};
ngx_module_t ngx_http_module = {
0, /* module index */
&http_name, /* module context */
ngx_http_commands, /* module directives */
NGX_CORE_MODULE_TYPE, /* module type */
NULL /* init module */
};
static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, char *dummy)
{
int i, s, l, p, a, n, start;
int port_found, addr_found, virtual_names;
char *rv;
struct sockaddr_in *addr_in;
ngx_array_t in_ports;
ngx_listen_t *ls;
ngx_http_module_t *module;
ngx_http_conf_ctx_t *ctx, *prev;
ngx_http_in_port_t *in_port;
ngx_http_in_addr_t *in_addr, *inaddr;
ngx_http_core_srv_conf_t **cscf;
ngx_http_listen_t *lscf;
ngx_http_server_name_t *s_name, *name;;
ngx_init_array(ngx_http_servers, cf->pool, 10,
sizeof(ngx_http_core_srv_conf_t *), NGX_CONF_ERROR);
ngx_test_null(ctx,
ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)),
NGX_CONF_ERROR);
for (i = 0; ngx_modules[i]; i++) {
if (ngx_modules[i]->type != NGX_HTTP_MODULE_TYPE) {
continue;
}
/* STUB */
module = (ngx_http_module_t *) ngx_modules[i]->ctx;
module->index = ngx_http_max_module;
ngx_modules[i]->index = ngx_http_max_module++;
}
/* null loc_conf */
ngx_test_null(ctx->loc_conf,
ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
NGX_CONF_ERROR);
for (i = 0; ngx_modules[i]; i++) {
if (ngx_modules[i]->type != NGX_HTTP_MODULE_TYPE) {
continue;
}
module = (ngx_http_module_t *) ngx_modules[i]->ctx;
if (module->create_loc_conf) {
ngx_test_null(ctx->loc_conf[module->index],
module->create_loc_conf(cf->pool),
NGX_CONF_ERROR);
}
}
prev = cf->ctx;
cf->ctx = ctx;
cf->type = NGX_HTTP_MODULE_TYPE;
rv = ngx_conf_parse(cf, NULL);
cf->ctx = prev;
if (rv != NGX_CONF_OK)
return rv;
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#if 0
/* DEBUG STUFF */
cscf = (ngx_http_core_srv_conf_t **) ngx_http_servers.elts;
for (s = 0; s < ngx_http_servers.nelts; s++) {
ngx_http_core_loc_conf_t **loc;
ngx_log_debug(cf->log, "srv: %08x" _ cscf[s]);
loc = (ngx_http_core_loc_conf_t **) cscf[s]->locations.elts;
for (l = 0; l < cscf[s]->locations.nelts; l++) {
ngx_log_debug(cf->log, "loc: %08x:%s, %08x:%s" _
loc[l] _ loc[l]->name.data _
&loc[l]->doc_root _ loc[l]->doc_root.data);
}
}
/**/
#endif
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ngx_init_array(ngx_http_index_handlers,
cf->pool, 3, sizeof(ngx_http_handler_pt), NGX_CONF_ERROR);
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ngx_http_init_filters(cf->pool, ngx_modules);
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/* create lists of ports, addresses and server names */
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ngx_init_array(in_ports, cf->pool, 10, sizeof(ngx_http_in_port_t),
NGX_CONF_ERROR);
cscf = (ngx_http_core_srv_conf_t **) ngx_http_servers.elts;
for (s = 0; s < ngx_http_servers.nelts; s++) {
lscf = (ngx_http_listen_t *) cscf[s]->listen.elts;
for (l = 0; l < cscf[s]->listen.nelts; l++) {
port_found = 0;
/* AF_INET only */
in_port = (ngx_http_in_port_t *) in_ports.elts;
for (p = 0; p < in_ports.nelts; p++) {
if (lscf[l].port == in_port[p].port) {
port_found = 1;
addr_found = 0;
in_addr = (ngx_http_in_addr_t *) in_port[p].addr.elts;
for (a = 0; a < in_port[p].addr.nelts; a++) {
if (lscf[l].addr == in_addr[a].addr) {
s_name = (ngx_http_server_name_t *)
cscf[s]->server_names.elts;
for (n = 0; n < cscf[s]->server_names.nelts; n++) {
ngx_test_null(name,
ngx_push_array(&in_addr[a].names),
NGX_CONF_ERROR);
name->name = s_name[n].name;
name->core_srv_conf = s_name[n].core_srv_conf;
}
if (lscf[l].flags & NGX_HTTP_DEFAULT_SERVER) {
if (in_addr[a].flags
& NGX_HTTP_DEFAULT_SERVER) {
ngx_log_error(NGX_LOG_ERR, cf->log, 0,
"duplicate default server in %s:%d",
lscf[l].conf_file->file.name.data,
lscf[l].line);
return NGX_CONF_ERROR;
}
in_addr[a].flags |= NGX_HTTP_DEFAULT_SERVER;
in_addr[a].core_srv_conf = cscf[s];
}
addr_found = 1;
break;
/* "*:XX" is the last resort */
} else if (in_addr[p].addr == INADDR_ANY) {
ngx_test_null(inaddr,
ngx_push_array(&in_port[p].addr),
NGX_CONF_ERROR);
ngx_memcpy(inaddr, &in_addr[a],
sizeof(ngx_http_in_addr_t));
inaddr->addr = lscf[l].addr;
inaddr->flags = lscf[l].flags;
inaddr->core_srv_conf = cscf[s];
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
addr_found = 1;
break;
}
}
if (!addr_found) {
ngx_test_null(inaddr,
ngx_push_array(&in_port[p].addr),
NGX_CONF_ERROR);
inaddr->addr = lscf[l].addr;
inaddr->flags = lscf[l].flags;
inaddr->core_srv_conf = cscf[s];
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
}
}
}
if (!port_found) {
ngx_test_null(in_port,
ngx_push_array(&in_ports),
NGX_CONF_ERROR);
in_port->port = lscf[l].port;
ngx_init_array(in_port->addr, cf->pool, 10,
sizeof(ngx_http_in_addr_t),
NGX_CONF_ERROR);
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ngx_test_null(inaddr, ngx_push_array(&in_port->addr),
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NGX_CONF_ERROR);
inaddr->addr = lscf[l].addr;
inaddr->flags = lscf[l].flags;
inaddr->core_srv_conf = cscf[s];
ngx_init_array(inaddr->names, cf->pool, 10,
sizeof(ngx_http_server_name_t),
NGX_CONF_ERROR);
}
}
}
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/* optimzie lists of ports, addresses and server names */
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/* AF_INET only */
in_port = (ngx_http_in_port_t *) in_ports.elts;
for (p = 0; p < in_ports.nelts; p++) {
in_addr = (ngx_http_in_addr_t *) in_port[p].addr.elts;
for (a = 0; a < in_port[p].addr.nelts; a++) {
virtual_names = 0;
name = (ngx_http_server_name_t *) in_addr[a].names.elts;
for (n = 0; n < in_addr[a].names.nelts; n++) {
if (in_addr[a].core_srv_conf != name[n].core_srv_conf) {
virtual_names = 1;
break;
}
}
/* if all server names point to the same server
then we do not need to check them at run time */
if (!virtual_names) {
in_addr[a].names.nelts = 0;
}
}
/* if there is binding to "*:XX" then we need to bind to "*:XX" only
and ignore other binding */
if (in_addr[a - 1].addr == INADDR_ANY) {
start = a - 1;
} else {
start = 0;
}
in_addr = (ngx_http_in_addr_t *) in_port[p].addr.elts;
for (a = start; a < in_port[p].addr.nelts; a++) {
ngx_test_null(ls, ngx_push_array(&ngx_listening_sockets),
NGX_CONF_ERROR);
ngx_memzero(ls, sizeof(ngx_listen_t));
ngx_test_null(addr_in,
ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)),
NGX_CONF_ERROR);
addr_in->sin_family = AF_INET;
addr_in->sin_addr.s_addr = in_addr[a].addr;
addr_in->sin_port = htons(in_port[p].port);
ngx_test_null(ls->addr_text.data,
ngx_palloc(cf->pool, INET_ADDRSTRLEN + 6),
NGX_CONF_ERROR);
ls->addr_text.len =
ngx_snprintf(ls->addr_text.data
+ ngx_inet_ntop(AF_INET,
&in_addr[a].addr,
ls->addr_text.data,
INET_ADDRSTRLEN),
6, ":%d", in_port[p].port);
ls->family = AF_INET;
ls->type = SOCK_STREAM;
ls->protocol = IPPROTO_IP;
#if (NGX_OVERLAPPED)
ls->flags = WSA_FLAG_OVERLAPPED;
#endif
ls->sockaddr = (struct sockaddr *) addr_in;
ls->socklen = sizeof(struct sockaddr_in);
ls->addr = offsetof(struct sockaddr_in, sin_addr);
ls->addr_text_max_len = INET_ADDRSTRLEN;
ls->backlog = -1;
ls->post_accept_timeout = ngx_http_post_accept_timeout;
ls->nonblocking = 1;
ls->handler = ngx_http_init_connection;
ls->log = cf->log;
ls->ctx = ctx;
ls->servers = &in_port[p].addr;
if (in_port[p].addr.nelts == 1) {
in_addr = (ngx_http_in_addr_t *) in_port[p].addr.elts;
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/* if there is the single address for this port and no virtual
name servers so we do not need to check addresses
at run time */
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if (in_addr[a].names.nelts == 0) {
ls->ctx = in_addr->core_srv_conf->ctx;
ls->servers = NULL;
}
}
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ngx_log_debug(cf->log, "ls ctx: %d:%08x" _ in_port[p].port _ ls->ctx);
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}
}
return NGX_CONF_OK;
}
#if 0
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/* STUB */
static struct sockaddr_in addr;
static char addr_text[22];
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int ngx_http_init(ngx_pool_t *pool, ngx_log_t *log)
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{
ngx_listen_t *ls;
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ngx_http_server.connection_pool_size = 16384;
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ngx_http_server.request_pool_size = 16384;
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ngx_http_server.header_timeout = 20000;
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ngx_http_server.header_buffer_size = 1024;
ngx_http_server.discarded_buffer_size = 1500;
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ngx_http_server.lingering_timeout = 5000;
ngx_http_server.lingering_time = 30;
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#if (WIN32)
ngx_http_server.doc_root = "html";
#else
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ngx_http_server.doc_root = "/home/is/dox/";
ngx_http_server.doc_root = "/home/is/work/xml/site-1.0.0/html";
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ngx_http_server.doc_root = "/spool/test/lperltk";
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ngx_http_server.doc_root = "/home/is/dox/ora/lperltk";
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#endif
ngx_http_server.doc_root_len = strlen(ngx_http_server.doc_root) + 1;
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ngx_http_config_modules(pool, ngx_modules);
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#if 0
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/* STUB */
ngx_http_output_filter_set_stub(pool, ngx_http_modules);
ngx_http_write_filter_set_stub(pool, ngx_http_modules);
ngx_http_index_set_stub(pool, ngx_http_modules);
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ngx_http_init_modules(pool, ngx_http_modules);
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#endif
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ngx_http_init_filters(pool, ngx_modules);
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ls = ngx_push_array(&ngx_listening_sockets);
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ngx_memzero(ls, sizeof(ngx_listen_t));
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addr.sin_family = AF_INET;
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addr.sin_addr.s_addr = inet_addr("0.0.0.0");
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addr.sin_port = htons(8000);
ngx_snprintf(ngx_cpystrn(addr_text, inet_ntoa(addr.sin_addr), 16),
7, ":%d", ntohs(addr.sin_port));
ls->family = AF_INET;
ls->type = SOCK_STREAM;
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ls->protocol = IPPROTO_IP;
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#if (NGX_OVERLAPPED)
ls->flags = WSA_FLAG_OVERLAPPED;
#endif
ls->sockaddr = (struct sockaddr *) &addr;
ls->socklen = sizeof(struct sockaddr_in);
ls->addr = offsetof(struct sockaddr_in, sin_addr);
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ls->addr_text.len = INET_ADDRSTRLEN;
ls->addr_text.data = addr_text;
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ls->backlog = -1;
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ls->post_accept_timeout = 10000;
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ls->nonblocking = 1;
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ls->handler = ngx_http_init_connection;
ls->server = &ngx_http_server;
ls->log = log;
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return 1;
}
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/**/
#endif